Yo what up welcome back to another episode of I watched dune last night and it's all I can think about today's episode is sponsored by Squarespace Well, it's time to push some shit again not like out into the toilet But like chemically push some film pushing film is a very popular process used by many Photographers not digital photographers to create a certain look with their images in general I've never really been much of a ho for pushing film not the YouTube channel I am actually quite a hoe for that I guess I just never really understood the appeal of pushing your film when you could just shoot it at box speed and then add the Resulting effects like contrast in post but little did I realize the dumb assery of my ways There is a monumental difference between digital contrast and chemical contrast I've never pushed Ilford HP 5 before but the hype around it was too hard to ignore I decided I would push a couple of rolls of 35 millimeter HP 5 two stops a.k.a. The mat day special HP 5 is kind of fallen out of my graces lately because I found a new lover in the form of Kodak Tmax 400, but is it possible? It's time for me to relapse on HP 5 Let's find out a lot of you are already probably pretty familiar with what it means to push or pull your film But for all the newbies out there too bad. I'm not gonna explain it. You're f***ed. All right Here it goes to put it in simple terms pushing your film is when you shoot at a higher ISO than box speed Which results in underexposure and then over develop your film to compensate for the underexposure the effect typically results in more Contrast more grain and more pain, but there ain't no grain without pain It's a look that is very very cool for black and white film buffer color film You can start to get color shifts if you go too far, but how far is too far? I'd recommend you have an open and honest talk with your lab technician I find that a lot of relationships are easier with open communication strict boundaries and a safe word But speaking of laps the darkroom was forming the collab of the century with beers and cameras and they invited me along for the festivities I was super excited to hang out with Phil, Trev, Juan, and Caleb and just shoot the s*** about film cameras Needless to say though Baxter was not amused that I'd be leaving without him After loading the Leica m6 with the freshest roll of HP 5 that I could find I headed down to the apocalypse now hellhole that is currently downtown in LA Our first stop would be the king of burgers that's right in and out But this was no ordinary in and out this in and out was right next to LAX And featured a bunch of landing planes flying overhead which of course was a solid photo opportunity Unfortunately someone's car had broken down on the way to work Since the car was small and old the three of us figured that with enough gusto we could get behind it and collectively take some photos As I said before in order to set up your film to be pushed you need to underexpose because I'm pushing two stops I would need to underexpose by two stops The easiest way to do this is to take your light meter and just set the iso to something that's two stops more sensitive For example illford hp 5 is 400 iso at box speed So to push it two stops and underexpose it two stops I would set the meter to 1600 iso now you might be screaming at your computer screen phone screen Coachella hologram whatever you're watching this on in whatever year you're in about the fact that LA is bright and sunny Literally forever.  I don't know it's for demonstrative purposes In the chariot up to the Getty museum I thought it might be a good time to swap out the 35 millimeter sumacron for the 12 millimeter voilander The architecture of the Getty is something to behold for sure I found that the leading lines and curves really played well with the grainy black and white look of pushed hp 5 Though it was incredibly bright and reflective there. So I was shooting at max shutter speed and f16 Basically everything from the dust on my lens to the distant spiral arms of the milky way galaxy was in focus Upon further investigation of these images it seems that they have a lot of grain more grain than grains of sand in the movie dune After getting kicked out of the Getty for not knowing anything about art We headed to the hotel while in the hotel lobby I realized not only that the hotel's theme was that it couldn't decide on a theme But I also realized that hp 5 at 1600 is perfect for indoor scenes which might provide significantly less light Like these shots, but more importantly this shot, which is definitely one of my favorites because the contrast is simply on point Before we headed to the beers and cameras event We were talking a bit and trev brought up a good point about how I was incorrectly calling it The eastern sierras when it should correctly be called the eastern sierra after feeling some pretty deep ancestral shame I was on a mission to get something back against trev something that he couldn't possibly see coming So when he whipped out the contacts t2 that night I had to upstage him with the superior optical quality mechanical perfection and james bond swagger of the budweiser camera I didn't get any b-roll of the event, but it was really awesome to meet everyone at beers and cameras It was a pretty big hit as recognized by my hangover the next day So it might be worth noting that if you accidentally under exposure images You can't magically save them by pushing your film the same way that undercooking a turkey and then jamming the bastard in the microwave Won't save thanksgiving I actually really dig this shot. I think it's the kind of shot that would only really work with high contrast It was here in my scanning process that I realized that maybe Just maybe pushed hp5 is kind of the jam But speaking of things that are at the jam, I'd like to thank today's sponsor square space Are you looking for an easy way to display your beautiful photography? An easy way to show your work to your parents Co-workers or even all your high school teachers who said that you were a total failure of the modern educational system Well, then look no further square space is an all-in-one website building platform designed to help you Create a beautiful website with ease if website building isn't your forte. Worry not square space offers 24 7 customer support And even features an online forum for anyone to seek help for specific inquiries regarding your website So what are you waiting for if you're ready to build a website? You can start a free trial today at squarespace.com slash grainy days And if you use the code grainy days at checkout you can get 10 off your first purchase So is pushing hp5 two stops that's so raven or not that's so raven I think it is that so raven having an image come through the scanner and negative lab pro with the contrast already dialed in Is kind of amazing all I have to do is bump the sharpness and crop the image Which is perfect because less work means I can get drunk and watch dune on repeat all night and practice my tibetan throat singing at 3 a.m You have something in your hair Am I beautiful now? It was dog poop I can't imagine that pushing hp5 further to three stops would yield very positive results In fact, they'll be negative crazy smart and good-ass jokes aside I think pushing hp5 two stops is the perfect amount The grain flourishes to the point that it almost kind of looks like you took your latest banger on a piece of high grit sandpaper This is definitely a look that i'm going to use the crap out of in the future Though now I am personally conflicted between the two powerhouse black and white films the fine detail and Grainless rendering of tmax 400 or the grainy sex appeal of hp5 Perhaps different film stocks are called for in different situations I don't know what I do knows that I had a blast meeting everyone And it's important to experiment with film photography because you never know what you might get I mean from personal experience most of the time it'll be crap But every once in a while it'll change the way you shoot and that's a good thing So have you pushed hp5 two stops before if you have what did you think but more importantly, what did you think of dune?


Good day fellow investors! Now, I haven't really discussed bonds yet on this channel. However, it is extremely important to watch what's going on with interest rates and treasury yields. If you have a treasury that yields 4% and you have a stock that has an earnings yield of 4%, you will choose the treasury, because that's a sure thing, practically a risk class. So, the stock should yield 6-7% in order to give a premium on the risk of owning stocks. If a stock goes from 4% to 6-7-8%, then the stock price drops 50%. So, it's extremely important to see what bonds are doing in order to see what stocks will be valued at in the future. And if you look at the 10-year treasury rate, we can see that interest rates almost doubled in the second part of 2016, but since the beginning of 2017, despite the Fed's increased interest rates, treasury yields have declined from 2.6 to the current 2.2 to 2.1. This means, A, the market doesn't believe the Fed. They don't see future tightening. And we'll see what happens in this week's meeting. So, they don't see future long-term tightening. They don't think the Fed can raise interest rates because inflation is not growing. And this tells a very important story. If we look at the Fed's economic targets and projections, they want GDP at 2%, unemployment rate around 5% and inflation at 2%. The problem is that inflation almost reached 2% at the beginning of 2017, but then, as the Fed's increased interest rates dropped to the current 1.64. This will make the Fed think twice about raising interest rates. Lower interest rates are good for bond investors, as bond values go up and also for stock investors. So, the market doesn't believe the Fed will increase interest rates. And what's going on can lead us to the following conclusions. First, we will see negative interest rates in the next recession. The Fed has on average lower interest rates by 5.5 percentage points in best recessions. If we are now at 1.5% and the Fed lowers for 5.5 percentage points, we are at minus 4. Negative interest rates have been unbelievable, but we still have them in Japan, Switzerland and so on. So, perhaps also minus 4 will be a potential interest rate in the future. Who knows. So, given what the market is feeling, given that we are already 8 years in the cycle, we must acknowledge that higher interest rates might be elusive for a longer period of time. This means that stocks can remain higher for a longer period of time. If earnings stay stable, if a recession hits us, interest rates remain low but earnings deteriorate, then we are in trouble, then we will have stagflation and that is an environment very very difficult to get out from. So, the Fed is keeping things as is artificially. By keeping interest rates low, if the Fed would put now interest rates 5-6% as it should be in a normal economic environment, we would see a recession today, not tomorrow. So, that's why the Fed is trying to postpone anything negative that can happen and usually when such a power postpones, it means that the crisis, the next crisis, will just be bigger, bigger and bigger. I'm seeing a huge inflation because negative interest rates so much money, so there will be inflation and low or negative economic growth. I really fear stagflation. I will discuss it in a special video, how to protect yourself from stagflation. And the short-term consequence is that the bet on higher interest rates should be closed. Last year, I was an interest rates bull, thus a bond beer, so now you should really think about hedging by owning more treasuries as those can go up if interest rates go down. So, really, I think there is an equal probability that interest rates go up and down at this point in time. So, be hedged. Just to conclude, we can see that the total public debt GDP in the US has been surging since the 1980s. This means that economic growth that we are enjoying now in developed countries, the same thing goes on in Europe, in Japan, is only thanks to debt, not to increases in productivity. Gold prices have also been increasing this year, so again, the market is starting to prepare itself for financial turmoil. You should do the same. To conclude, nobody knows what will the financial world look like in five years. The only thing we can do is prepare for everything. So, please watch my old weather portfolio. Start thinking in protection. Start thinking in achieving some kind of return at low risk. Going bluntly into the market, following the trends, I think at this moment in time, is very, very risky. Thank you for watching. Click like if you like the content and I'll see you in the next video.


Hey there, it's James Gadokataya of JSA. Thank you for your interest in our CO exchange. That's our 24 second executive networking platform and app. First, the decision makers who are members of this platform are from our tech, telecom, and content provider ecosystem. They are folks who have meaningful interest and influence on network infrastructure. They have points of view on topics like cybersecurity, IoT, AI, SDN, NFV. In short, the digital transformation that's happening up and down the OSI stack. If this sounds of interest to you, we'd like to have you apply. You can do so by visiting the ceoexchange.net. And you can see there that we have pricing for two packages. There's basic membership as well as premium. Premium also includes the IP pass to our telecom exchange events or techs events. These are executive networking events that are happening throughout the year. If you are approved to participate, all executive members can log in via the ceoexchange.net at top left corner. Log in is really easy. And if you forget your password, just go ahead and click right here or reach out to us anytime for tech support at ceoexchange.net. And once you're inside the platform, the homepage really showcases essentially everything new. What's the latest that happened? So you have CEOs who just joined to upcoming CEO roundtables to attend or speak on, as well as latest conversations. You can also quickly download the ceoexchange app right here. Across the very top of the homepage is an easy to read nav bar. Once you click on the ceo page, you can see our members listed alphabetically and you can filter them by common interests such as big data. We'll click the recommended button right here and the exchange will intelligently recommend CEOs to you based on your matching profiles. Feel free to create one-on-one meetings with any participant, including for any day virtually. All you have to do is type in your conference call or video bridge of your choice. Or you can also plan a meeting that will be held on any upcoming industry event, including, you guessed it, telecom exchange. Once both decision makers accept that meeting request, calendars will be updated and synced to your iCal, Google Calendar or Outlook. You can also weigh in and network with the entire CEO exchange membership on the idea board. This is where you can pose a question or provide responses. Additionally, as a member, you can access the CEO library. This is where you can upload or download executive educational papers such as white papers or ebooks or case studies, anything that has an educational event. You can also sort these documents by common interests such as big data. Or you can do the work for you via the exchange recommendations. And a last little preview, you can view upcoming CEO roundtables, both the ones held on-site at telecom exchange events or the ones virtually on about every other month in between the calendar year. You can apply to speak on upcoming roundtables and suggest additional topic ideas for future roundtables. And that's it.  Hope you enjoyed it. Also make sure you check us out in the App Store and on Google Play. Again, you must be a member to have access. Need more info? Go ahead and click on contact us on the ceoexchange.net and we'll get back to you quickly. And of course, from our team to yours, happy networking.


All right, good morning, Dublin. Good morning, rest of the world. My name is Shrivatsa Kanderthi, and I'm excited to be discussing Python's role in revolutionizing education through interdisciplinary computer science coursework. So to tell you a bit about myself, I'm a student researcher from the greater New York City area. My research extends to machine learning applications for physical modeling and ecology. Some of my recent work includes co-authorship of Lyon 5B, which is the world's largest open source image text data set, as well as clip reproduction. I'm also a member of the United States Technology Policy Committee, which is a nonpartisan advocacy group seeking to guide informed technology-related decision making at several levels of government. We also have equivalents in Europe and as well as a global policy council pushing for very similar goals. I'm passionate about community issues, particularly those related to computer science education. So I'm excited to be delivering this talk on what I believe is an overlooked sub-problem within computer science. So a quick agenda here. I'm going to start by giving a general introduction of computer science within education, the current state, as well as the Python aspect. After that, we're going to touch on this idea of interdisciplinary computer science education discussing why it's important and more importantly, discussing what's missing in interdisciplinary computer science coursework right now. After that, we're going to take a look at a Python-based approach that we took for interdisciplinary computer science education and how we're hoping that these steps are going to motivate future advancements in developing more co-curricular coursework with computer science. So the first thing that we're going to touch on is the present state of computer science education. And throughout the talk, we're going to focus on the secondary level, so secondary education. So computer science coursework in school systems has certainly increased significantly in recent years. According to the code.org advocacy coalition, the percentage of high schools in the United States offering computer science courses jumped from 35% in 2018 to 51% in 2021. And we can expect similar growth in similar developed nations. So this is a healthy change, but it's still relatively weak representation for such an in-demand skill. Additionally, the growth of computer science in this field is not always equitable. In this graph, which is from the code.org advocacy coalition, it's clear that in the US, groups that were traditionally isolated for computer science coursework continue to face limitations in their access to computer science. So around the world, opportunities do vary greatly, but there is a steep divide between accessibility in high-income nations and lower-income nations. The graph on the right demonstrates this very clearly, where a significant percentage of the population has at least access to some form of computer science education, or will have access in the near future. And at the other extreme, in the low-income area, in low-income nations, there's no in-school computer science education. So taking a look at the figure on the left, we can get a deeper look at where these areas are. And more of the developed nations, once again, are showing that trend where they have pilot programs or they have mandated programs for computer science education. And we also see a province or state-by-state breakdown in the United States and Canada. But one important point that we need to address is that the graph shows, let's see if I can hear. So some of these areas have this dashed line. So this represents cross-curricular computer science education. This is some areas in Europe, some provinces in Canada, but really not much else of the world. So cross-curricular computer science is the incorporation of computer science into other fields. This is the point of concern that we seek to expand upon and address in much greater detail today, primarily the fact that there is a severe lack in cross-curricular computer science education. But before we touch on that, let's discuss some additional considerations in computer science education. First, various communities, governments, advocacy groups, language communities such as the Python community have reached a consensus that CS educational opportunities must increase. But it's a multifaceted problem. As we seek firmer policy and develop nations for mandating computer science coursework, we also look to increase opportunities in underserved nations and for underserved groups, minority groups. And at the same time, we also need to refine the nature of the educational coursework that we present. Is it high quality? And are we making sure that we're expanding computer science as we would with other core curricula? And to do this, I think that the most important step is discourse and discussion, such as the form that we have here. I think that by having a platform to talk about such issues, we can ultimately drive change. So now let's touch on some exact motivations for increasing computer science education. The three that we identify as relevant are, first of all, the boost in cognitive abilities. Various studies have pointed out increases in cognitive thinking forged by computer science exposure at early stages. Some particular benefits are in problem solving and planning abilities. And you can take a deeper look at the sources and references that we've linked below. Additionally, computer science coursework is also shown to be macroeconomically beneficial. Research demonstrates that nations with greater computer science educational opportunities are boasting higher productivity rates. For individuals, organizations are projecting that the job market for computer science professionals will grow at twice the rate of the rest of the labor market between 2014 and 2024. And this research comes from the US Bureau of Labor Statistics, but similar figures have been witnessed in much of the developed world. A computer science education has also been linked with higher likelihood of employment and better wages. So these factors have prompted the push for greater computer science coursework. But what are the factors that inhibit this expansion? First, the lack of qualified instructors in the field is a global challenge. Many districts are attempting to combat this deficit through increased resources for hiring professionals. So the goal for this is to attract computer science professionals to teaching jobs away from other by offering higher pay. Or school districts are also partnering with universities to sort of take an approach and understand how universities are able to expand computer science education and bring that to the secondary level. And finally, more practically, several school districts with the resources and many school districts don't have these resources. But those that do are utilizing something known as a professional development program where existing teachers are called for sessions to teach computer science skills. So that way, we don't need to hire new resources. Additionally, a current belief in the education realm is that computer science is only for a small sect of highly capable students. For example, 57% of parents think that one needs to be very smart to learn computer science. And these are the same parents who overwhelmingly indicate that they wish for their students to engage in computer science coursework. This mentality is discouraging students to say the least. Students should feel open to be able to explore any field that they feel interested in without having the restriction of feeling inadequate. And we also know that this is a clear misconception. It's been debunked by several research studies. And of course, the experiences of countless professionals applying computational resources to traditionally non-computing industries. My audience out here knows this. So one final factor is that to build a full scale computer science curriculum, schools must invest in communications and technology, ICT infrastructure for both educators and students. This tends to be very restrictive for particularly lower income areas. But there are innovative approaches that are attempting to deal with this. So there are groups that are donating computing resources to schools, whether that be subscriptions to things like code.org platforms or other IDEs. And there's also a power free sort of computer science education that's arising where instead of having computers, students without the access to these resources have board games and a paper resources that teach computational thinking, but full scale implementation definitely requires greater ICT infrastructure. So within the Python community, we largely concur with the industry trend towards expansion of computer science education. Python is the number one language in higher computer science education today. Some factors motivating that include its simpler syntax, which makes it easier to learn primarily for beginners. It's a very active community and it's high relevance that are certainly boosting this usage. We also have Python community members sitting on advocacy groups, such as the code.org advocacy coalition. The association for computing machinery has several policy committees. And these individuals are calling attention to some of these educational problems and attempting to guide policy changes. And I think most importantly, Python advancements are inspiring students to take up a computer science education. To the members of the Python community, the bare minimum that you can do to help out is to keep doing what you're doing. Keep building awesome projects that inspire students. So now I wanted to get into a specific sub problem which is interdisciplinary computer science education. What exactly does that mean? So we're defining interdisciplinary computer science education as the integration of programming, computational thinking, computer science foundations and so on into traditional non-computing courses. You may also see the term come up as cross-curricular coursework as with the report from the Brookings Institution. So interdisciplinary coursework is certainly not a new concept in education. For example, students in an English class and for standardized English exams are expected to understand, produce and even analyze data visualizations. At the same time, math students learn to communicate their work formally in language. At lower levels, that may be simply a word problem, interpreting a word problem or understanding how to explain their thinking for an answer. But as we go further, research is a language that we communicate via, we communicate research via written language generally. That's the primary mode that we come out with new breakthroughs. So math students need to learn how to use English skills. And at the same time, English students are learning math skills. So this is the epitome of interdisciplinary coursework. And this may prompt another question. Do these other fields simply connect more naturally? And it's a complex answer. So in general, it makes more sense to integrate computer science into STEM coursework for obvious reasons such as, you know, greater focus on quantitative tasks. And it also never makes sense to pigeonhole CS into another discipline where it's in fact counterproductive. That's not our goal here. So what we have to conclude is that math and English are well connected. But so are, say, computer science and math or computer science and physics. So as long as we can find that valuable connection, it's a direction that's worth exploring. And we hope that down the road, we can start finding connections as both fields evolve between English and computer science and other humanities subjects in computer science enough so that we can teach it generally in a secondary school setting before students go on to specialize in universities. So now let's evaluate the general need for computer science, interdisciplinary computer science coursework. So first of all, technology is more and more integrated into careers today. And that's beyond STEM careers. So for example, lawyers today may be required to learn more data analysis skills. So that way they can better inform their work. And this is right up the alley of Python and data science and ultimately greater computer science education. Also, we have to stress the stigma, the sustained fall stigma that computer science education is only for higher performing students. This has made it so that many even fail to consider that computer science can be integrated into other coursework. And this stigma is certainly a priority. Ultimately, the conclusion is that the isolation of computer science education from other courses is to the detriment of learners and the fields that they pursue. So now what we want to do is propose a Python-based approach for introducing interdisciplinary coursework. So first, we have to answer the question, why Python? Why does Python make it less intimidating for users? Additionally, libraries and frameworks in a wide range of disciplines such as biology, physics and math, as well as languages as well, allow for deep connections to Python which is a necessity for studying domain specific problems through computing. And once again the awesome Python community as well as support for the language coupled with its growing relevance in job markets and careers to make learning Python a very valuable and future-proof skill. So through a set of case studies we're going to study Python-based interdisciplinary coursework. So we're unveiling those results here at EuroPython. So first, let's set some general rules for future implementations of such courses and some assumptions that we're making in our case study. So first of all we're going to be focusing on STEM coursework for reasons outlined previously. There's simply a greater connection to computing in the traditional sense between math and physics that we can find in between computer science and math and physics for example in comparison to computer science and the arts where it takes a greater level of knowledge and more specificity to this connection. So for now we're going to be focusing on STEM careers but it's always the goal to find more connections from CS to other coursework. And we're also going to continue our focus at the secondary school level at this point and we're making the assumption that when these courses are implemented and during our case studies the instructor is appropriately trained in computer science skills such as a professional development program a university contact or new professors who are capable or hired or at least our hope is that a capable instructor is brought in as needed to cover computer science content. So for example in a biology course perhaps once every unit or twice every unit you have a computer science instructor come in who understands the material and drive a connection between biology and computer science and we're also setting the expectation that students take prerequisite Python fundamentals course to have some CS background. So it's still imperative that other efforts to increase computer science education continue because we believe that finding, forging interdisciplinary coursework at the fullest level really requires a better knowledge of a better knowledge of the domain specific problems. So we're still urging that computer science education efforts continue and we're introducing this interdisciplinary idea in conjunction so that we can start thinking about how to expand accessibility. And in our case studies we're really testing for engagement as well as comprehension and value. We're hoping to expand our studies as well to understand how students respond to being tasked with crafting code on their own. But now we're going to be evaluating how students understand and respond to a Python based lecture. So that's what we did in our two studies. Sorry about that. So here is our approach. First we are during an instructional block going to give students a domain oriented computer science demonstration. For example, in a biology class we give a talk on DNA sequencing and then get into discussion on how we can maybe accomplish that goal through Python. Next and most importantly we're going to gauge reception and feedback with a survey. So what's important to note here is that these studies were conducted on a very small scale and likely embed a high degree of bias. So no statistically significant conclusions should be made from the data. Instead, we're hoping that we can motivate future studies and greater discourse over this issue. So for our survey questions we really attempt to understand how the student is responding to a computer science education. We're also going to ensure that the surveys are anonymous so that way we can boost honest reporting since the quality of this study is really contingent upon students giving truthful responses. So some questions we asked are rather general. So for example do you have prior programming experience? Are students coming in with knowledge necessary to understand some computer science examples at a deeper level? And another question have you learned Python before? Because our course work was based around Python this is a question that we thought was important but during the case studies we tried to take it so that it was less restrictive where we went into much greater detail on some of the implementations. We were also asking if students were able to follow along with the Python demonstration a simple yes or no answer and we're hoping that students reported honestly and we're glad to say that we think that many did. And the next two questions we have students actually expanding upon their answers. So the first one is do you believe the demonstration expanded your understanding of the material? After the students answer a yes or a no they're required to give an explanation. The reason for this is so that we can audit the extent to which the students are actually understanding the lecture. So for example if a student indicated no I don't believe I understood much of the demonstration but in their explanation of their answer they're indicating keywords that are pointing at that maybe they did we can make note of that. And the other way around works as well where a student can indicate that they did understand the lecture but taking a look at their response that is perhaps questionable. These are just things that we can make note of to understand the qualitative response to for students. And the next question would you benefit from greater integration of Python into this course? A simple yes or no answer but we also want to see what exactly we're missing whether our motivations match the student reception. So our first case study was on a problem in orbital mechanics known as a three body problem. So we went into a college level mechanics course and introduced computer science concepts. So the three body problem is a chaotic system of three masses that exert a radial force on each other. I think the GIF is doing a pretty good job showing you that that behavior is chaotic but it's called chaotic because there's a high degree of sensitivity on initial conditions. So that means that if we were to change one of the masses of one of the masses of those three bodies we'd have a drastically different system behavior. And importantly the scenario has no explicit general solution. So we have to simulate its behavior via numerical integration methods. And here's the format for that physics lesson. So first we're giving students a lecture on the three body problem including a derivation. After that we're showing students a Python simulation of the three body case. So we use Rungakuta approximation methods to develop a simulation in Python and we're showcasing that to students and some students indicated that they thought of it as a complex calculator and we're glad that students are able to make connections like that. We then encourage the students to change values in the simulation to indicate behavior. Why is this chaotic? What happens if you change the mass from 50,000 kilograms to 100,000 kilograms students were able to see how that was different. And after that we give them a detailed discussion on the code for the simulation including descriptions of the Rungakuta algorithm and how we implemented that in Python and also some discussion on implementation as well, how we're using libraries and defining some key terms that students who either weren't familiar with computer science or weren't familiar with Python would benefit from. And here are results. So we surveyed 21 students in this physics class. A vast majority of students had prior programming experience. Upon further investigation we found that many had taken a Java based computer science foundations course before. However, only a handful of students had experience with Python. We're actually surprised by the numbers since several indicated that they had done independent work in Python to learn which we're happy about. However, we're glad that most students, regardless of their Python experience and their computer science experience indicated that they were able to follow along with the demonstration, which is certainly a plus. Many also went further to state that they believed that they would benefit from greater integration of Python into this course and we'll look at some rationales later. And overwhelmingly every single student indicated that their comprehension of domain specific material was enhanced by the computing demonstration. Once again, this data is not necessarily statistically significant. For example, we have to take into consideration the fact that these are higher performing advanced placement students and it's very possible that they were predisposed to better understand. But we think that these results are promising and should motivate further study. So the next case that we took a look at is in a calculus course. So this is very similar where instead of a three-body problem, we discussed Runge-Kutta approximation methods which are numerical approximation methods for generally unsolvable differential equations. And we gave examples in ecology and physics. So the plot on the left is a plot of the predator prey or Latka-Volterra model. And this illustrates the relationship between species in environment predator, let's say a lynx and a prey, it's a hare. And we're also going to take a look at the double pendulum, which is another chaotic system very similar to the three-body problem exhibiting a high sensitivity to initial conditions. And once again, the method that we took is very similar where we're giving students a lecture showing them a simulation. In this case it's of the Latka-Volterra model and the double pendulum. Then we're encouraging students to change values in the simulation to investigate the behavior and we're giving them a description of the implementation. And the results are similar. So we had 24 students surveyed and there certainly is a greater balance between students with or without programming experience and this is exciting because then we can understand how even without prior knowledge students are performing. And accordingly there's also a smaller proportion with a prior exposure to Python. However, we're glad that many still indicated that they were able to follow along with the demonstration. And there are more students in the right graph indicated that they wouldn't benefit from Python expansion into the course. And we'll look at some specific responses as to why. But most excitingly a majority continued to indicate that the demonstration improved their comprehension of the material presented. The hands-on experience with Rungakuta approximation methods. So here are some responses. Many indicated that they were very interested and one was stated that they were afraid that the demos would take time away from preparing for examinations and that's certainly an important consideration. In terms of action advocacy groups and institutions are identifying several important goals for secondary level computer science education. And you can take a quick look through those. We are advocating for a new competency which is exploring computer science connections to other fields and some may indicate that this idea is embedded into other competencies but with the field in its infancy we think it's essential that such goals be explicitly communicated so that appropriate action can be taken. We'd also like to encourage community members to join policy committees and directly advocate for changes. You can also reach out to local leadership and bring light to important issues. Many community members are well-equipped to develop free accessible educational content on interdisciplinary computing. So just post on YouTube something that you do in your work and you'd like to share with students. But the best thing that you can do to continue using Python to forge is to continue using Python to forge groundbreaking projects that revitalize industries and tackle tomorrow's problems. So thank you all very much. Here is my contact information. You can reach out on venue list if you have any questions. Thank you all. Thank you, Srivatsa. We're just a little bit ahead of time which is great. We started a couple of minutes early so thank you for being ready. Does anybody here have any questions they'd like to ask? Great. There's a mic just here. Very much for that talk, thought-provoking. I just wonder, do you make use in the teaching of Python, do you use Jupyter Notebook and if you do do you use other tools as well as Jupyter Notebook? Yes, so we primarily focus in our demonstrations with Jupyter Notebook and obviously we like the markdown features where we can have when we share these notebooks with students they have a talk-through or a description of what's going on and we like that feature. So the focus, I think in education Jupyter Notebooks are amazing for that. Yeah, they're fantastic, aren't they? And then one final comment. Initially you were saying maths with science and technology later on, maths with English. Don't you think that Worddle is one of the best examples we ever have of learning English knowledge with maths knowledge? Probability? It's incredible.  If you think it's an English thing it's really a maths thing. Oh yeah, that's a great point. I watched some videos on that and it was really fascinating how you can absolutely use probability and maths to approach a word game and I think that's cool and connections like that with other community members is absolutely what we're looking for. So thank you for that. Yeah, thanks. Hi, thanks for inspiring me to talk and I would like to ask you were touching about the social stigmas connected to the teaching of computer science especially like being perceived as a smart person and I was wondering like did you explore some specific ways how to overcome these issues? So not as part of this project but some of the research that we've looked at has really stated that some changes in terms of education itself where starting from the primary school level where students are on more of a level playing field is important to sort of break down that stigma. So for example people indicate that I'm a maths person or I'm an English person and that's inevitable that that evolves but people still do math in English and we're kind of looking for the same here. We think computer science should be part of the core curriculum right down there with a language course and a math course and a science course. So breaking down that stigma should start from the earliest levels of education we think. Okay, thank you. Thank you very much for that talk. Thank you. So as someone outside of really math and physics but still in STEM do you have any recommendations for resources to start integrating coding in Python into the curriculum or even into my own classes? Well so I know that there's several so you're a teacher at a certain school, what level of schooling? I work at a university in town so university level education in ostensibly first science. Yeah I mean there's university level I actually really enjoy using MIT OpenCourseWare for things like that where it's at a higher level and the resources are better suited for you know sort of like higher level students I believe MIT's computational thinking course is actually a great start specifically for students you know who aren't necessarily STEM. So I definitely start there. And another place you could look is there's several groups like I think Rappel.it and other sort of organizations that are teaching very introductory level skills but because you're at the university level I really would recommend MIT OpenCourseWare for that. Thank you. Hi on the subject of social stigma I'm a school teacher and I struggle with the gender bias in computing and trying to get more girls involved. Have you got any findings or recommendations for sort of projects which might be particularly interesting to girls as well as boys? Yeah so unfortunately you know we did come across that a lot where underrepresented minorities and girls struggled to get into computing and that wasn't the focus of this project where we were more focused on interdisciplinary computing but I think that just a personal note from experience is encouragement really does help where you know ensuring that like they know that they're being helped and also preaching the importance of everyone ensuring that they're not bringing anyone else down so boys not saying things that could discourage girls but again I think that starting at earlier levels really does help with this where students are sort of less pigeonholed into different stigma around computing and they can start out with computer science coursework and if they're interested then they can delve deeper so not sure if that exactly answers your question that wasn't the exact focus but I hope it's the direction you can take. Thank you so much for your questions guys. Do we have any remote questions? I know we didn't. No we don't. Guys thank you so much for coming today and a final round of applause please for that second Dorothy. Thank you.


good day fellow investors. Now most of the news is around Apple, Amazon, Tesla and all those kind of stocks. So one might think value investing is dead. Nobody wants to talk about value investing. If you look at the performance that a Russell 1000 value is up 43% while the Russell growth index is up 111%. So that's a huge difference over 10 years. So with such an underperformance it's crazy to call oneself a value investor now. All value investors we should close ourselves in our closets and never come out again. Nevertheless, let's see what value investing is. As Buffett would say the essence of value investing is buying stocks at less than their intrinsic value. So practically you try to buy a dollar for less 80 cents 50 cents as low as you can. This is very difficult because the SAP 500 price to book value is 3.23 so here you're paying 3.23 dollars to buy one dollar. The CAPE ratio was 15 in 2009 now it's 30.34. This shows that fundamentals earnings didn't improve just stock prices went up. To move myself from always looking at earnings here is the price to revenue ratio. It was below one in 2009 and now it's above 2.5. This means that SAP 500 revenues didn't grow while the stock prices increased exponentially. Now what's left for the value investor? Staying cash, look for options around the world what we are doing on this channel or become a growth investor. I wouldn't go for the growth investor because you can see here that at current market valuations the future corrections have always been above 25% and up to 50%. They could probably be even larger when a correction starts. So if you are a value investor I wouldn't go into growth stocks now. The second option I told you can be to waiting cash. Buffett has 99.7 billion in cash on the balance sheet and he's patiently waiting for investment opportunities. So that's a very interesting option and a very smart option to do. So simply wait, do nothing, enjoy your life and wait for opportunities to knock on your door. They will certainly come especially with the huge expected correction that will eventually come when I don't know but it will be there. So if you have cash and everybody's making money on the SAP 500 you obviously underperform. Nevertheless check what said Claremont did from 1991 till 2000. If we start with 50 000 dollars after 10 years with said Claremont it would be 131 000 but the SAP 500 would be almost double at 237 000. So even said Claremont one of the most famous investors now in the world he underperformed the SAP 500 for more than five six years in a row. So that's a huge time to underperform. Many would close down shop, people would take their money away. Nevertheless in the long term he beat the SAP 500 by double. So his returns have been better even with six years of underperformance. So value investing is certainly not that it is that only when people think about usually just before the next crash comes. In the 1990s value investing was that because everybody was investing in crazy internet companies. 1980s we had corporate takeovers, 1970s the Nifty 50 stocks, 1700s the South Sea Company, Tulip Box in the 1600s and all those crazy investments. Eventually they all revert to the mean. When I don't know do I sound crazy when I talk like this? Yes to 99% of the investing population. What can I do? I'm a value investor. Nevertheless value investing is still here. All those fats are dead. Value investing continues and is always the power that leads to the highest returns in the long term. Do you agree with me? Maybe not, maybe well. I'm looking forward to your comments in the comment section. Thank you for watching, click like if you like the content, subscribe if you haven't and I'll see you in the next video.


Yesterday afternoon police were advised of a matter of offences that were committed by a male person between here and Yipun. A number of police were dispatched to a location in the intersection of Kuala Road and Yipun Road where they conducted a search. The information of that time was in this person was in the possession of some fire arms consisting of three long weapons and two shotguns and a quantity of ammunition. Police conducted a range of searches throughout that area over the course of the next few hours however we were unable to find that person. Later on this yesterday evening we received a call that this person had tried to make arrangements to get a lift to Yipun. Further searches were conducted and there were a number of sightings of this person. During the course incident about 8.15 last night this person approached one of our dog squad officers. They engaged in a conversation where the dog squad officer asked this person to surrender himself to police. This person failed to do so as a consequence of that and the actions of this person the dog squad officer was in fear of his life and he discharged his weapon in the direction of this person. This person immediately ran from the scene and was again sighted on two occasions after that by the police vehicles running into the bush and back onto the road on Yipun Road. The short time thereafter this person was then picked up by a passer by a member of the community and was taken to a location in Yipun and that is the last that we've actually had sightings of him. We've done everything we can and we're confident this person was not injured in any way by the shooting. The sightings by the police officer failed to see any injury and the information from the community was that this person was not injured. We'll continue today to locate that and we're carrying a range of investigations to try and facilitate that. Naturally the objective from the police point of view is to peacefully resolve this and have this person preferably surrendering himself in the police custody without us taking any further necessary action. Do you have a description and if people spot in what should they do on this metal bridge? The person's 27 years of age is about 170 centimetres tall. He's a white male, very, very short hair, sort of reasonably looks like a portion of the build. He's not a heavy set person. Now if people sight this person, we would certainly ask people not to go near him. There's nothing to suggest at this point that he's a threat to the community in general but for the purpose of safety and I'll just encourage the community to think about their own safety if you call the police on triple O or the local police station or cry of stop along 1-800-333-000 Naturally the community needs to think about their own safety but as I say he has made absolutely no threats to the community and there's no action that this person has done that leads us to believe that he is threatening the community. His issues are with the police and that'll be dealt with through the investigation process. I was just going to say is he from Kowarow or what's he doing in the area? No he's from your town and he's been a process of travelling from your town along Old Bifill Road where he's had an accident in one car, he's been located or stolen I suppose another car he's then subsequently left that car and then left that car he had these weapons that we're talking about. So how do you know where he's from and how old he is in all those details? As a result of the investigation we were having yesterday, we received information from other members of the public in terms of things that he's committed yesterday. The person, the description that was given was sufficient for us to be able to identify him through the details that he's given us and so that's how we know what we're looking for and we'll just progress up and there. When you say he's tried to arrange a lift, is that meaning he was trying to pitch high? No he's actually made contact with people that he knows and we've never seen how those people can help him. Also that those people might be charged for assisting him? That's all subject to the investigation but they're not the focus of the investigation at this point. And I understood something was thrown at the police car during the whole ordeal, what was thrown? Yeah as I said there before, he was cited on a number of occasions and on one of those occasions he's thrown a small object, I believe it was a brick or something like that but it's a small hard object this far and please be careful. How much damage done? Not quite now. Does the police believe that he's still in possession of those five firearms? What I can say is that there's five firearms in this state and we haven't covered any of those firearms. So I can't say that he has them but I can't say that he hasn't got them but I can say that we haven't recovered those firearms. What are the main areas of focus for the police search today? What we're doing is, we're not sort of going in between much of our investment practice but we're running out inquiries as to addresses and where he may be located at and what we're endeavouring to do is make contact with this person and ask this person to surrender himself to the police voluntarily and so we can resolve this matter very peacefully. And obviously if this person either hears this on the radio or is aware that we're looking for him, we would be very very encouraging and supportive of him to make contact with the police as soon as possible so that we can just get this matter over and done with. Is there a history of mental health with this person? I don't know. Any sort of prize? Sorry? Any sort of prize? I can't talk about any history there. Is he known to the police there? He's known to the police as a result of the discussions we had with the victims yesterday so the reasons that we know who he is today results directly from the information that we received yesterday. Police tried to intercept a vehicle the other day using stingers and you can write us that related to this incident? Not at all. I don't know about that. Did you say he was involved in the accident? Yeah, that's one of the offences where he's... One of the offences we're investigating is the allegation of a stolen vehicle and the information is that he's crashed that vehicle on an old biofield road and he's been on paint another vehicle and then he's obviously located that vehicle and he's been sighted in the star arms in that area in the Quarrel Road and Green Road area and that's where we've located the old investigation desk so he'll search up against that and we're able to say we're unable to find him on the old biofield road. And what's happened to that now? That vehicle's been obviously... Police retrieved that vehicle last time. There's obviously a lot of police resource thrown into this mountain police snabbing court. Yeah, we're investigating a serious matter and because it's serious, we need more years of resources than we need to try and progress this to a conclusion quickly and safely. Just finally, you said the officer feared for his life. That's why the thing was fired. How far away at this point was the offender? Was he aiming the gun at him? Why was he so fearful? I really can't comment on that. That's obviously now a subject of a separate police investigation. Anytime something like this happens for transparency's sake and to certainly ensure community confidence, it's fully investigated and it's independently investigated and there's a process that goes through there and so I just can't comment on what actually occurred last night. Are you going to release this name? Not at this stage. Do you want a bit of... Yeah, he's started to work with a new parent right now and that's just lots of people, police officers walking through the grass today. So you want to know about that? Yeah. One of the areas that we're examining is the possibility that he has secreted those firearms overnight. Some are on the Inburn Road, so as a consequence of that information, we've directed a number of resources to Inburn Road to make searches. Obviously trying to find the weapons. We've been quite fortunate. As everyone knows, we've got telescope saver operating at the moment and we've drawn extra resources from this, but some of those resources include the amount of police in it, so we've directed those amount of police officers to this area. It gives us a little bit of a height advantage in terms of them being able to look from a higher height and maybe see something that people on foot might see. Thank you. Have a nice day. Thank you. The officer that fired the weapon, is he still taking time off now? Um... It's obviously got to be pretty shaky. We've got a process there where we deal with the welfare of the staff. Obviously that's central to anything we do. So, yeah, there's a process there that's in place. In terms of whether he takes time off or not, that's a matter for him. But we've got a very strong support of work environment. How often is it that a firearm gets discharged? Quite a rare experience, I think. I can't comment on the list, but it's not a frequent occurrence. It's certainly not in my character.


I'm so grateful that you're on the show. And you also faced the bills last year on Thanksgiving. There's a lot of going up against you in that game. But you saw Alan up close and personal, so what makes him so special? Well, his physicality, he's one of those guys. You're kind of reminded of a young Ben Rothersberger relative to trying to sack him. He's difficult. There's a run element to his game that is very impressive. And I think his arm talent is remarkable. He can make the throws down the field. But if a play breaks down and he decides to run it or scramble, it's an eight yard game, not a two or three yard game. So when you see him up close and personally realize how big he is, and he's certainly improved every year. So he's one of the rising stars. He's already risen. He's special.


Hey, you sick-to-goers! Busy, busy, busy, this expression of having no time being a workaholic and being constantly busy has become almost a bragging point, which is most definitely not healthy. Unfortunately, so many of us have bought into this mindset that we regularly overdraw on our energy banks and have become numb to the internal signs telling us to relax. If you don't pay attention, you may set yourself on the quick path to burnout. Prevention of this involves keeping stress levels in check. While there are certainly obvious signs of stress, it's important to recognize lesser-known signs that hide themselves as other unrelated symptoms. Let's look at these hidden signs of stress. Number one, you're constantly tired yet can't sleep. This is the most prominent of the hidden signs. If stress has you feeling constantly exhausted, there's a good chance your mind won't switch off to let you get a good night's sleep, which is one of the most important things needed to recharge to enable tackling the next day. If you are not aware that extreme fatigue actually blocks you from falling asleep at night, you end up staying awake even longer, creating a never-ending cycle.  Stress affects your immune system. Chronic stress weakens it, leaving your body unable to protect itself from illness. So if you find yourself constantly sick jumping from cough to cold to other illnesses and there's no obvious reason for it, it might be stress. Number three, you can't remember things as well as you used to. If you're finding trouble recalling that thing someone just told you yesterday or can't remember what snack you had a few hours ago, and this is super weird for you, it could be due to stress. When stressed, your brain malfunctions, including the part that manages short-term memory. Even though long-term memory remains intact under chronic stress, prolonged exposure will affect your reasoning skills and problem solving if left unaddressed. Number four, your anger and frustration are always out of control. Overwhelming stress commonly allows for intense feelings of anger or frustration to rush forth like a torrent with little to no warning. This rush is often disproportionate to this situation.  Feeling this massive swell of anger and frustration can be jarring. What you can do is take a step back. You'll likely find that you're not really that angry at a particular person but more of the situation as a whole. So you can now break it down into smaller, more manageable bits. Number five, you experience discomfort while sitting still for too long. You may not be aware but other than the gun show in your arms are the grapefruit calves in your socks. There are numerous smaller muscles that help you stabilize. Those are the ones that hurt after using free weights and you say I hurt in places I didn't know I had. Know what stress does? It makes all of the muscles tense. That means they're now tight. They're not all happy, flexy and bendy. So you're no longer sitting in a nice pliable cushion of your body. It's more like a slightly flexible rock. Does that sound uncomfortable? You bet it is. Do you unconsciously adopt positions like a hunched back or crossed legs to provide some comfort? Yeah, you likely do. I do too. But neither of these positions are very good for our bodies and will have detrimental long-term effects. So don't forget to take regular breaks, even if they're short, to unpretzel. Number six, you feel your heart racing all the time. Our base drive, like all living things, is to survive. Like a deer escaping a predator, our bodies too have developed a survival mechanism to impending danger. The fight or flight response. Just like it says on the tin, this reflex reddies your body to rumble, or to get the heck out of dodge. The downside is that stress is read by the body as danger. And all those come at me bro responses kick in, including making your heartbeat faster to supply the muscles with more blood. This means you could be sitting still at your desk looking at a monitor, yet your heart is running like a caffeine-fueled hamster on a wheel. Exhausting. Number seven, you really want that junk food now. Mmm, cookies. Ooh, chips. I would kill for some ice cream. If you're having frequent cravings for junk food like this, this could well be a sign that something isn't quite right. It could be the result of stress. This is related to the fight or flight response mentioned before. Your body essentially says in short term, this is not the time to think about eating. Run away, run away. So it shuts down normal or regular appetite and produces cortisol, the stress hormone. This response also tells your system that there is intense energy consumption required. So now your body thinks it absolutely requires sugars and fats, basically fast fuel. For those muscles, you need to throw down or run away from the predator. The result is you're generally hungry because stress interrupted your normal eating habits and there's an internal alarm saying you need junk food to live. And the next thing you know, you're reaching for the bag of chips or fries tipped in ice cream. Number eight, you have a huge drop in motivation for tasks. This is where procrastination hits an all time high and you find yourself putting off all must do tasks. Like chores around the house, work responsibilities are even getting groceries. As you can imagine, the result isn't pretty. If this lack of motivation becomes chronic, the piled up dishes, unfinished work tasks, and empty fridge will just add more stress causing burnout. Number nine, focus, what focus? And what were you talking about again? Taking little breaks is important. When you force yourself to the grind for an extended time without a breather, you overwhelm your brain. The sponge can't take anymore. Other stuff gets squeezed out, like remembering where you put your keys and incoming information starts to look like some nebulous blob. You'll find you have trouble staying focused when attempting higher levels of thought activities like reading or driving. And number 10, frequent headaches. Harkening back to 2.5, your muscles get tense. That includes the muscles in the head, neck, and shoulders, which leads to tension headaches. This tension may lead to blood vessel inflammation, which is where the dreaded migraine shows up. Now now, don't stress. One or two of these symptoms could easily be caused by other things all together. Take a closer look if you find yourself nodding and recognizing many of them though. Then you may want to consult your friendly neighborhood healthcare professional. Chronic stress is a dangerous thing, especially when the signs are inconspicuous, continuing to wear down your mental, physical, and emotional health if left untreated. So please take those breaks in order to recharge your batteries so you can best manage whatever challenges come up. A healthy you is a stronger you. Thanks for watching. See you soon.


You all recall some time ago that there was a woman who showed up at a police report. This woman was giving sign language, the problem was she didn't know sign language. How could that be? Well, because the people who were letting her give the sign language, they didn't know sign language themselves. But it turns out much of what she was signing was nonsense. She waved her arms around like she was singing jingle bells. Jesus tells us that just as there were false prophets that arose among the people, there will continue to be also false prophets that arise among us. And these false prophets will bring in these destructive heresies. And so the lesson is people need to make sure that they study to know what the word says so that no false prophet, no person will bring in these signs. And so we must also be alert that no imposter can come in and bring any destructive teaching. Amen.


Hey, this is Brett and this 2018 Chevy Silverado 2500 Crew Cab Short Box LTZ is stock number 13067Z. I am here at Summit Automotive in Fond du Lac, Wisconsin, your new and used heavy-duty truck headquarters. This 2018 Chevy Silverado 2500 has the 6.6 liter Duramax diesel engine. It has the L5P engine which puts out 445 horsepower. This truck also has the 6-speed Allison heavy-duty transmission. It has been fully-safetyed and inspected by our service shop per the state of Wisconsin inspection process. Has a fresh oil and filter change. All the fluids have been checked and topped off. And this truck is 100% ready to go. Graphite metallic is the color I'm going to go all the way around inside, underneath, start it up, and take a look under the hood in this video. I shoot all of my videos in 4K. So if you have HD capabilities on your computer, tablet, smartphone, or television, I highly recommend turning them on right now because it is your best way to check out the quality, condition, options, and cleanliness of the vehicle before seeing it in person. And if you like the video on how I do things here at Summit Automotive, consider clicking the subscribe button on my YouTube channel in the lower right-hand part of the screen. And then click the bell notifications and you'll get updates on the videos I do each and every day here at Summit as well as one of the largest catalogs of vehicle walkarounds on YouTube. Comes with the 20-inch polished aluminum rims that has Goodyear Wrangler SRA tires. These are LT26560R20s. And in the front here, we have probably about 60% to 70% of the tread left on those tires. Frame and underbody is in excellent condition. This is a one-owner clean title history out of Alabama. So Southern truck here, very little to no corrosion on that frame. Front fender is in excellent condition. I didn't see dents or dings. This one does come with the projector-style headlamps, factory fog lights, and the front bumper parking sensors. No major dents or dings on there. The grille is in pretty nice shape. And it does come with that true color induction hood. I'll show you how that works in just a little bit. But the hood itself is in nice shape at insiny dents or dings, and it does have the cab lights up top. Passenger side front fender is in nice shape. No major dents or dings on there. And the passenger side front rim, no major scuffs or scrapes. Now as you go down this side of this 2018 Chevy Silverado 2500, take note of how clean the body is, how reflective, and mirror-like that paint is. I take these HD videos so if you are far away, or even if you're close by and you just cannot make the trip down, but you're still interested in purchasing the vehicle, you can see the truck, hear the truck, and have confidence in the vehicle that you're looking at before you even get here. So when you do get here, there's absolutely no surprises. And you can make a smart and informed buying decision from wherever you're at. And if this video helps you make that decision, let your salesmen know that you saw the video, that it was helpful, and that Brett sent you. Looks really good down that side. This back rim is in excellent shape. And once again, if you like the video, you can subscribe to our YouTube channel in the upper right-hand part of the screen. Back tires have just a little bit less tread than the front tires. I would say probably like 30% of the tread left on these back tires. But still a little tread there. Frame and underbody is in excellent shape. You can see there's very little to no corrosion. Has all the remaining factory exhaust, so it hasn't been altered in any way. And the lower underbody looks really good. Cab corners look great. Factory chrome step bars, passenger side box, no dents or dings. And coming around to the back of the vehicle, rear bumper is in excellent shape. Does have the backup parking sensors, rear bumper steps, full towing package, which includes a receiver hitch, four pin and seven pin wiring. And the tailgate is in very nice condition as well. An Ncney denser dings in there. Does have a locking tailgate, backup camera, and a very nice factory Chevy drop-in bed liner. Now this one does have the LED bed lighting, which is right up there. Turn those on with your cargo lamp. And the bed liner is in nice shape too. You get one on the driver's side as well. Tailgate shuts nice and solidly and easily. And as you go down on the driver's side, just as clean as that passenger side. Didn't see any major dents or dings on the box. And for full disclosure, this back rim is in fantastic condition as well. Down the rest of this side of the truck, the cab and the doors all look really good. This one does have the telescopic tow mirrors, built in directional signals. They telescope out like that. They power fold in and power fold out. And you get the LED side lights. Those also turn on with your cargo lamps.  No rips or tears on the driver's seat. Looks really good. Both of these front seats are heated, cooled, and powered. Factory, all-weather floor mats. Auto headlamps turned out four-wheel drive. Factory brake controller, tilt and telescopic steering wheel. Power windows, power locks, power mirrors. Memory driver's seat and power fold-in mirrors. Has the Bose sound system. We'll hop in the back here quick. Take a look at the back seats. Just as clean as the front seats, no rips or tears back here. It does have the latch child safety system for any child car seats you may have. Power sliding rear window with the built-in rear defrost. Excellent condition back here. These seats fold up. Carpentine and floor mats are in nice shape. And it does have side curtain airbags. Bottoms of the doors. What you'd expect from a truck from Alabama. Looks really good. And we'll hop inside. Check out the miles radio. And everything that this truck has to offer on the interior. You can see that this one has 43,588 miles. You do get a digital speedometer. Outside compass display. And you get that Z71 instrument cluster. Steering wheel is leather wrapped. You get the cruise controls, heated steering wheel controls, and forward collision warning controls on the left. No major rips or tears or scuffs on there. Bluetooth and information center controls on the right. Once again, the six speed heavy duty Allison transmission with the optional tap shift. This one comes with the Chevy MyLink system. You get the factory navigation system on there. CD player. This one has AM, FM, and Sirius XM radio capabilities. It also has a projection manager where you can project your cell phone to the screen via Android Auto or Apple CarPlay.  That's how you turn those LED lights on in the bed and on the mirrors. Parking sensors. You can turn those off and on. You do have lane departure warning, downhill assist control, and factory exhaust break. Two USBs, two 12-volt power points, and a 110-volt, 150-watt plug-in. Passengers side, floor mat, and seat are in excellent condition. I don't see any rips or tears in there. Smells very clean inside this truck. I don't think it's ever been smoked in. And the headliner is in fantastic condition. Up here you get your map lights, home link buttons for your garage door security systems and lighting systems, and your power sliding rear window button. On-star and SOS buttons in the mirror. We'll start it up and take a look under the hood. Starts right up. No check engine lights or anything like that other than the hood warning light. And I did want to show you those mirrors real quick. They do power fold in. I always like showing both sides so that you know that both sides are working properly. We'll take a quick look under the hood. There are those LED side lights. I would personally like to thank you for checking out the video today. And hopefully from this HD video, you've been able to verify the quality, condition, options, and cleanliness of this truck all the way around, inside, and out. Under the hood we have the 6.6 liter Duramax diesel engine. Engine bay is very clean, runs very smooth. Once again, this truck has been fully safety and inspected by our service shop as a fresh oil and filter change. All the fluids have been checked and topped off. And this truck is 100% ready to go. There is your emission sticker. So that co-induction hood, air comes in there, comes down to this side, goes right into air cleaner. That's how that works there. Anyways, I would highly recommend this truck from a quality and condition standpoint and to see more pictures of this 2018 Chevy Silverado 2500 Crew Cab Short Box LTZ in graphite metallic or one of our other 450 new and used cars, trucks, SUVs, minivans, wranglers, half tons, three quarter tons, one tons. You name it, we gotta go to that website right there at summitauto.com, full pictures and descriptions of every single vehicle from two locations all at summitauto.com. And if you'd like to check out more HD videos, you can go to youtube.com slash summitauto. Remember to like, subscribe, and share on this video and all the videos that you see there. Click the bell notifications, you'll get updates on the videos we do each and every day here at Summit Automotive. In fact, in a second you will see a link to subscribe to my YouTube channel in the upper left. A link to more Chevy 2500 truck videos like this one in the upper right. Link to this vehicle on our website in the lower left and a link to one of our latest YouTube videos in the lower right. Click those, check us out. And we're super excited to help you with this Ultra Clean 2018 Chevy Silverado 2500 Crew Cab Short Box LTZ in graphite metallic with the Duramax diesel. Thanks again for checking out the video. Remember to like, subscribe, and share on my YouTube channel. I really appreciate it. Thanks again.


Awesome. So today I want to introduce you to this organ here. This is the placenta. It's probably one of the most underappreciated organs in the human body, I think. But we should all stop and just give this guy a bit of credit because this is what kept you alive in utero for 40 weeks. And it did this by being a pretty amazing multifunctional organ. So it acted as your lung, as your gut absorbing both oxygen and nutrients in mum's blood. It acted as a bit of a kidney taking fetal wastes and excreting them back into the maternal circulation. And it was also a major endocrine organ regulating not only the baby's growth but adapting mum's whole physiology so that she was able to sustain that baby throughout the length of gestation. So this is a pretty incredible organ, but it's also probably the least understood organ in the human body. And that's a bit of a problem because in one in ten pregnancies this organ doesn't quite do what it should. So this leads to things like fetal growth restriction when baby's born too small. And it also leads to conditions such as preeclampsia which is mum gets dangerously elevated blood pressure. And these are especially a problem because it's actually very little we can do about these disorders. Usually what happens is that baby is delivered to remove the placenta and that usually happens before it should do in gestation. So my group's major research question is how does the hemipocenta actually form in normal pregnancy? Why does this go wrong so often and what on earth can we do about it? And when we're trying to approach these questions we actually really need to focus on the very early events in pregnancy. So the pathophysiology of pregnancy disorders is established often within the first 10 to 12 weeks of pregnancy. But understanding this in humans is exceptionally difficult. Obviously it's ethically and logistically impossible to get early implantation sites from human pregnancies. And we need to study this in humans because actually most laboratory animal models don't have the same anatomical structure as a human placenta. So we've gone about tackling this problem by looking at the stem cells from which the placenta is formed. There are two types of stem cell populations that I work with, tropholus stem cells and mesenchymal stem cells. So to explain a little bit about what on earth these are, let me just talk you through the placenta a bit up here. So you can imagine the placenta like a branching tree and if you were going to take a crust section through one of the nice leafy branches at the end, this is what you'd see. On the outside here you have mum's blood circulating around and what you can see largely in blue here are the trophoblast layers. So these are responsible for taking the nutrients from mum's blood and bringing them into the placenta. And so when we look at trophoblast stem cells we're trying to understand how these different types of trophoblast form and how they're doing that, drawing up the nutrients into the placenta properly. Then if we look on the inside we can see in green here this developing system of blood vessels. So this is an early gestation placenta we're looking at here. And as we develop throughout gestation, we'll get to the next slide somehow, as we develop throughout gestation this network continues to develop and become extensively branched so that it sort of maximizes the ability to take these nutrients, the trophobusters, drawing up and transfer them through the umbilical cord to the fetus. And what we think mesenchymal stem cells are doing in the placenta is playing really key roles in both forming these blood vessels at the start of pregnancy and regulating how they branch and expand throughout pregnancy to optimize that process. I really can't get the slides going here. Awesome. Thank you. Go. And we know that this process of blood development, blood vessel development is really important because this is one of the key things that can go wrong in growth restriction. So in growth restriction babies we're not getting enough nutrients transferred into the placenta and we're not getting enough uptake into the fetal circulation. So let me start by talking a little bit about the work we've been doing on human trophoblast stem cells. The major problem when working with human trophoblast stem cells is that we actually don't have a human trophoblast stem cell that's been isolated and characterized to work with in vitro. So a bit of a stumbling block. Mouse trophoblast stem cells were isolated more than 15 years ago and we have this amazing knowledge of all the cell differentiation events happening in the mouse placenta. But as I said we need to know how this relates to the human and what's actually relevant from that data to what we can apply to the human pregnancy. So sort of for the last four to five years I've really focused on trying to pull out the first human trophoblast stem cell so that we can understand what's happening in early pregnancy so that we can learn what's important and what's not important. So to do this I've taken a characteristic of most adult stem cell populations so the stem cells that kind of live in all of your tissues and play roles in regeneration and repair and this is that they like to survive better than all the other cells in the tissue. So if you put a toxin near them they spit it out really quickly. And that's exactly what we can see, yeah it's buzzing at me now, that's exactly what we can see up here. So we've put a fluorescent toxin essentially near these cells and the low standing intensity streak you can see is those cells spitting it out fast and we can separate out those cells. I've shown that they're 99% trophoblast so they're the kind of cells we want and they also when we profile the gene expression of these cells they express markers characteristic of other types of stem cells as well as mouse trophoblast stem cells and very early trophoblast lineage is in the placenta. So they look and smell like we would hope a human trophoblast stem cell would look and smell and that's really exciting. We can also isolate these from both early gestation placentas and from term placentas. So early gestation placentas are going to let us understand how the placenta grows and develops but actually I'm more excited about the fact we can get these out at term because this means we can take a normal placenta and a growth restricted placenta and this is exactly what we're doing in the lab at the moment and we can take the stem cells from those placentas and we can hopefully understand how they got to be like they are so how that pathology developed earlier in gestation. So mouse and camel stem cells are my nice easy stem cell to work with. There's a lot of data in the literature characterizing these cells. We know exactly what they should express on their cell surface so we can characterise them and show that the cells we've pulled out are mouse and camel stem cells. We can again isolate these from both first trimester and term placentas and I'm really interested in knowing how these cells contribute to that vessel development at the start of pregnancy, how they interact with the vessels throughout pregnancy because they actually live right around those vessels in the placenta and we think they secrete things that contribute to their ability to branch out extensively and why this goes wrong in fetal growth restriction. So in the popular press, mouse and camel stem cells often receive attention because of their roles in regenerative medicine and they kind of do some really neat things. So if you took a cardiac setting and a lot of this work has been done in the cardiac field and you induce something called a cardiac infarction so you damage an area of that cardiac tissue and you transplanted mouse and camel stem cells into that tissue what they would do is actually work to help heal and repair that tissue and they would do this in two ways. They would do it by improving angiogenesis so stimulating blood vessel growth and also by acting in an immunomodulatory way so dampening inflammation in that tissue and that's been shown to have clinically significant effects in improving the sort of regeneration and function of the heart. What I think is even cooler is that if you took a patient that had a cardiac infarction and actually not inject the cells into the tissue just inject them into the main circulation then what those cells would do is hunt out that area of damage in the body home there and then have those actions. So they're quite remarkable and placenta and mesenchymal stem cells have been used in this kind of way to treat other organs and actually what I want to know is could they be used on the organ from which they come so could we use placental mesenchymal stem cells to treat problems in placental development and blood vessel growth, areas of infarction in the placenta areas of sterile inflammation that we sometimes see in these growth reciprocating cases. That seems a little bit out there I guess so that's going to involve transplanting stem cells into a baby in utero but actually this is on the medical horizon at the moment so the first trials injecting mesenchymal stem cells in utero are already starting in the states to treat osteogenesis imperfecta so this is definitely something we could feasibly look at in the future but of course first we need to have some solid, solid science behind it so we've started out looking at this in vitro so what you can see here are that we've injected fluorescently labelled mesenchymal stem cells into chunks of first trimester and term placental tissue and when we do this what we see is that they branch out and form these networks throughout the tissue so they migrate throughout the tissue and they also scoop around the blood vessels so they're homing to their natural niche where they would live in vitro and that's excellent because that's exactly what we would want them to do if we were transplanting them in vivo so what we're now trying to figure out is actually what they're doing once they get there what are they secreting how are they going to influence those vessels and could we then take these cells into an in vivo model and see if we can actually rescue a growth-rejected phenotype by transplanting mesenchymal stem cells in there so all that remains is to hope that I've generated some level of excitement in the audience about placental stem cells and to thank the people that give me money to play around and do this and all my collaborators and students that have contributed bits along the way


Ie! Cyn allan y medсе nes yr hynny sy'n cael cwysig o ymddangos ymddangos yn y Cysigol, gan yr hyn? Roedd dim, a bod yn rhywbeth o newid ymddangos, i'r ddweud o ac yn unig o'r holl ddydd i'r bobl yn yr Yng ngyseidol. Yn cael ei ddim yn script? Yn cael ei ddim yn hyn feddwl yn hyn i ddechrau. Nid yw'n ymddangos yn y G siŵr? Rwy'n meddwl ymddangos? I was having a lunch with my friend and he was talking about the company. It is not really a good experience but we are not using stable without many additional snow, so we will move with it. Mae chi'n rhaid i fod ymlaen, maen nhw yma yn geisio fel Gwyduchol, fel Llyfrgell, fel Llyfrgell yma mewn unig o 답 experton. Mae'r ddweud i'r ddaf i gyd yn gweithio. Mae'r ddweud i gael bod maen nhw'n differentiate, i gyfligafol hefyd, ac mae'n ddyddol yn ddiwedd, yn cyd-ddiwrnEEFygiad ac mae hynny, dyna nhw. Mae'n ddysgu'r dyma'r ddysgu. Felly, yna'r ddysgu? Yn ddysgu, bydwch yn ddysgu. Fe'n ddylch chi'n ddysgu'r ddechrau, ddysgu'r 3.10 yn gwneud drosyngau, gyda'r llyfr. Felly, fy oedden nhw'n fyddwch i'w dwydd yn ystau'r ardalau mewn gwleiddoedd. Rwy'n da'n siarad y weld fy oedden nhw'n hwylodd yr Omnolol? Rwy'n ddim fyddwch i ddweud â'r gwleiddoedd. Felly, mae yna gwell o ybyd ar hyn o'r ystafell. Ydwch chi'n gwybod i'w'r wneud ddafodd yw'r gweithloedd AMSM, a ydwch chi'n ei gwneud yn gweld ddim i chi'n gweld ddangos? ac mae'r pethau yn unig ond gan ddim, ond le'n gweithio ni'n gweithio ddim yn burgers yn gyfodol. Yn gweithio gyfan rhaid, maen nhw'n ddim podod yn gweithio hwn ar y cyflau', cael eu bacti drwyddo gan'r newydd yn ei brifysgol, ac mae'n ddim ddim yn cymdangad eich tyme, oherwydd o'r newydd yn newydd 10. Ac that seems like a potential middle drum between … Let's update the whole kernel in our stable retrieve and instead let's just pull up all the new graphics I've installed because you have no idea which pieces we need and which bits we don't need because you probably need all of it Would that be an acceptable solution? Would it might be, but then we have to be very careful Mae'r trwm yn wneud ei wneud yn meddwl gwaith croesol cyfnod yn y ONE. Rwy'n meddwl cyn nhw, maen nhw'n frech i'w ddiwch cyfnodd. Roeddwn i'w ddweud ei wneud yn cael eu bod yn gallu gweithio gwaithau. Roeddwn i'w ddweudökol eisiau gael ei wneud pan yn bod chi ddim yn cael eu gwneud yma? I'm Eric Enholton, the Intel Graphics Driver Team. So, one solution we've been talking about implementing in the user-state side of the Graphics Driver is, you know, there's this conflict between, we really want to be able to get the current version of our driver for the new chip sets into old versions of distributions, but no distribution wants to take the new driver because, yeah, you know, you broke the old generation on some application and you're not getting around to fixing it yet. So, one of the ideas we have was, okay, let's take the livegeo loader, the loader of the Graphics Driver, have it look at the PCID of your chip set and decide which file to open based on that. And then you could have, you know, Debian could choose to have the current generation of chip sets load the current version of the driver that already supports them, and then when newer chip sets come along later, you would just update to say, oh, yeah, and all these new chip sets load this new driver off to the side that was built using a newer version of Mesa, and then you don't have regressions because otherwise it didn't work at all. Yeah. Actually, I never understood why I915 that those drivers haven't been split so that the refactoring to support the new chip has no effect on the new chip. So, we actually did just split off the remainder of the 915 code from 955. We used every pile of shared code about 15,000 lines. We split that into, it's down to 10,000 lines. In Mesa, yeah. And we talk constantly about, well, you know, is there another split we want to do, but the question is always which generation, because no matter what you end up duplicating, once we do that basically you wouldn't end up fixing anything on older drivers, and we do have contributors. But that's fine. We have contributors improving older drivers, which is pretty cool, like being able to run new applications on your old Iron Lake system from three years ago now. You know, that's neat that we're doing that in open-source software, I think. I think we want to make that possible, but yeah, for a stable distribution I think you want to avoid pulling in those newer feature updates. So, yeah, you know, is matching based on PCID going to be enough for people to say, yeah, we could pull in new Mesa for new chip sets and keep the old stuff for the old stuff? If you can make that work, yeah. I don't know how that would work in the kernel level, how you deal with having two 9, 915 drivers. I think the worst part for the kernel is not going to be the 915 driver, which you could presumably, you know, do some said job to subset all your symbols, but there's also the shared DRM core, which is, additionally, these days doing communication between the different DRM drivers. I don't think you could do that split in the same way in the kernel. Right, yeah. Is that implied to user-space Mesa versions installed if you're going to choose pick a runtime when you run? Yeah, so you would have Mesa 9.1, you know, today with the Intel, up to Ivy Bridge driver and the Radeon drivers and the new Bo drivers, and then, you know, stable would also end up with Mesa 9.2 for Bay Trail, the next platform that's coming out that we're still building the code for. So does anyone know whether you're already packaging Mesa so you can install more in one version or not? So the, I don't know how that would get managed from the, like, get package version control side of things, but in terms of the installed files, it's just these DRI.so file names, and all we would, what we need to do is add this code for having to load or look at your PCID and decide a different name based on that. So that's my job. We didn't really get an answer there about how we would deal with the DRM core changes there. I've got nothing on that one. With new network cards, how dangerous is that to get the compatibility issues? Sporting new Nick drivers, less dangerous as new drivers? That seems to be easier because there aren't so many changes in the network driver API. And since that's my day job as my tenure network driver, I know all about the gotchas for back and forth compatibility there. So that's, I won't say that we easy it up to date with ethernet drive support, but that's something I can think is easier to support, easier to do. So the compact drivers project does cover some ethernet drivers, I think. I'm not sure exactly which part to see. No, I don't have a list. So could we perhaps have compact drivers as an optional, as an extra separate package? And what would that, what would that, how could that work? As a package of the newer drivers with some compatibility codes so they can build against an older kernel headers, they would build those out of tree. Well, that's, that's how it's meant to work. So if we would package that, that would, I suppose those drivers modules will get installed into the updates directory in us, they would override the drivers part of the Linux image package. And you'd need to have the, I suppose you'd need to have the installer work out, but if you have, if you have such and such PCI IDs present, I guess you'd need to have discover, know that with these PCI IDs, you need, you'll need compact drivers. Do that again? Would that mean having a new compact driver package at each point released? Yes, so yes. Would you update people to, to install with one version of compact drivers to the new one? I suppose so, yeah. So obviously there's a potential for regression there. The same regression for that. Yes. Yes. But there's no, there's no regression for people who didn't need it in the first place. So I don't know, it's certainly no worse than what they would have at the moment, which is they will have the option to install a new kernel from, from backports, and then if they want any security support, they have to keep updating that as well, for anything close to security support. Because of course backports doesn't have real security support for what it hasn't done. So would you get one massive compact module package, or do you get kind of compact security and compact net and compact flour? Well it hasn't, so far so no, it hasn't been, no one's attempted to package this yet. Potentially you could do that. I guess that would give you some, the compacts could be, or whatever. Eat the mic over there, okay?  How are we going to do this? Or raise your hand. I'm not waiting for the mic. Any bright ideas? I'll have a go at packaging compact drivers. That was quick.