![]() ![]() Today, we’re not only releasing a new RetroArch version, but we’re letting you know all the changes that have been made to the libretro cores since the last progress report. Yesterday marked RetroArch’s 10 Year Anniversary date. I hope you like it □Ĭode and download: DOSbox, DOsbox Pure, Libretro, RetroArch Libretro Cores Progress Report – May 27, 2020 I wanted to get this out before the holidays and to personally end 2020 with something cool. So try to be constructive and as technical as possible if something doesn’t work as expected, I’ll be thankful. This initial release is feature complete as of now for what I wanted to accomplish, yet it is clearly marked as intended for public testing. Other features are support for cheats, built-in MIDI software synthesizer (needs a SF2 soundfont file), disc swapping menu and a start menu that lists EXE files controllable by gamepad.
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Regular expressions are extremely powerful for sifting through large amounts of text. The stringr package pattern arguments can be given using standard regular expressions (not perl-style!) instead of using fixed strings. Regular expressions are a way of precisely writing out patterns that are very complicated. Go look at to gain insight into just how geeky regular expressions are. Regular expressions are a way to specify very complicated patterns. The next section will introduce using regular expressions. ![]() Suppose that we have a vector of strings that contain a date in the form “2012-May-27” and we want to manipulate them to extract certain information. For most people, this is as complex as we need. We will first examine these functions using a very simple pattern matching algorithm where we are matching a specific pattern. Locates the first (or all) positions of aĪpplies str_split_fixed() to a data frame column Functionĭetect if a pattern occurs in input string The following commands are available within stringr. The previous commands are all quite useful but the most powerful string operation is take a string and match some pattern within it. However, because the backslash is the escape character, in order to have a backslash in the character string, the backslash needs to be escaped as well. ![]() For example in a character string \t represents a tab and \n represents a newline. Most programming languages, including R, represent these using the escape character combined with another. There are several white space characters that need to be represented in character strings such as tabs and returns. In his R for Data Science he has a nice chapter on Second, we introduce Dr Wickham’s stringr package that provides many useful functions that operate in a consistent manner. Additionally, they lag behind the string operations in other programming languages, so that some things that are easy to do in languages like Ruby or Python are rather hard to do in R.” – Hadley Wickhamįor this chapter we will introduce the most commonly used functions from the base version of R that you might use or see in other people’s code. “R provides a solid set of string operations, but because they have grown organically over time, they can be inconsistent and a little hard to learn. Hadley Wickham, the developer of ggplot2 and dplyr has this to say: Unfortunately, the utilities included in the base version of R are somewhat inconsistent and were not designed to work nicely together. It is important that we have a set of utilities that allow us to split and combine character strings in a easy and consistent fashion. For example a sample ID of “R1_P2_C1_2012_05_28” might represent data from Region 1, Park 2, Camera 1, taken on May 28, 2012. Data being read into R often come in the form of character strings where different parts might mean different things. Strings make up a very important class of data. Library(tidyverse) library(stringr) # tidyverse string functions, not loaded with tidyverse library(refinr) # fuzzy string matching 19.4 Passing R variables into SQL chunks.13.3 Spreading a Single Column with separate.11.3.4 Splitting into sub-strings using str_split() and tidyr::separate(). ![]() 11.3.3 Replacing sub-strings using str_replace().11.3.2 Locating a pattern using str_locate().11.3.1 Detecting a pattern using str_detect().11.2.3 Extracting substrings with str_sub().11.2.2 Calculating string length with str_length().11.2.1 Concatenating with str_c() or str_join(). ![]() 9.1.1 Recommended Project Folder Structure.8.1.2 Scalar Functions Applied to Vectors.4.1.4 Update and Create new columns with mutate(). Urn:lcp:lightsoutcyberat0000kopp:epub:84e22c94-28f4-4d7a-a68f-2a5cd0a38c0b Foldoutcount 0 Grant_report Arcadia #4281 Identifier lightsoutcyberat0000kopp Identifier-ark ark:/13960/t34264m30 Invoice 2089 Isbn 9780553419962Ġ55341996X Lccn 2015019999 Ocr tesseract 4.1.1 Ocr_detected_lang en Ocr_detected_lang_conf 1.0000 Ocr_detected_script Latin Ocr_module_version 0.0.5 Ocr_parameters -l eng Old_pallet IA19049 Openlibrary_edition Includes bibliographical references (pages 251-262) and indexĪccess-restricted-item true Addeddate 20:01:18 Boxid IA1919212 Camera Sony Alpha-A6300 (Control) Collection_set printdisabled External-identifier But how, Koppel asks, will ordinary civilians survive? One of our most renowned journalists examines a threat unique to our time and evaluates potential ways to prepare for a catastrophe that is all but inevitable.-Adapted from book jacket In the absence of a government plan, some individuals and communities have taken matters into their own hands. And yet, as Koppel makes clear, the federal government, while well prepared for natural disasters, has no plan for the aftermath of an attack on the power grid. It's not a question of if, it's a question of when. Broadcast journalist Ted Koppel, whose bestseller Lights Out: A Cyberattack, A Nation Unprepared, Surviving the Aftermath' has triggered hot debate within the ICS/SCADA industry on the. And a cybersecurity advisor to President Obama believes that independent actors-from "hacktivists" to terrorists-have the capability as well. ![]() In fact, as a former chief scientist of the NSA reveals, China and Russia have already penetrated the grid. The book reveals the vulnerability of perhaps the most critical of. Through interview after interview with leading experts, Koppel paints a compelling picture of the impact cyberattacks may have on the grid. Several nations hostile to the United States could launch such an assault at any time. In Lights Out, Ted Koppel uses his profound journalistic talents to raise pressing questions about our nation’s aging electrical grid. He is skilled at pulling the threads of many interviews into a story, and that is exactly what he has done in his new book, Lights Out: a Cyberattack, A Nation Unprepared, Surviving the Aftermath. A well-designed attack on just one of the nation's three electric power grids could cripple much of our infrastructure-and in the age of cyberwarfare, a laptop has become the only necessary weapon. • Ted Koppel reveals that a major cyberattack on America’s power grid is not only possible but likely, that it would be devastating, and that the United States is shockingly unprepared.“Fascinating, frightening, and beyond timely. Koppel has been a newsman for most of his long life, including twenty-five years at ABC’s Nightline. Banks no longer function, looting is widespread, and law and order are being tested as never before. For those without access to a generator, there is no running water, no sewage, no refrigeration or light. ![]() Tens of millions of people over several states are affected. Imagine a blackout lasting not days, but weeks or months. ![]() An excellent free resource for this would be the Differential Equations -playlist by Professor Leonard (link to Youtube). Study ordinary differential equations (not absolutely necessary, but very helpful).Trefor Bazett’s linear algebra -playlist (link to Youtube). Learn the basics of linear algebra (not absolutely necessary, but it’ll help).My favourite free resource for this is the Calculus 1 -playlist by Professor Leonard (link to Youtube). My #1 recommendation and an excellent free online resource for this is Khan Academy (link to their website). Learn basic vector algebra and geometry.Later in the article, I’ll also explain everything you need to know and what to expect on your journey to master vector calculus as well as some of my best tips. These steps are either what I’ve done myself that have personally been beneficial to me or what I would do in case I was to start learning vector calculus from scratch. Next, let’s actually take a look at the practical steps you need to take to learn all these prerequisites and then what to do to learn vector calculus.ĭown below are my recommended steps for learning vector calculus as well as my #1 resource recommendations for each. These more so optional prerequisites are: However, there are also a few things that will definitely be helpful to learn as well, but not strictly necessary. You’ll find more on specifically what you need to know from these areas and where you can learn these later in this article. In my opinion, you’ll be able to learn vector calculus quite well with just these. ![]()
![]() Whether you work from home, have a studio for working on your craft or you go into a commercial office space, the Mainstays Ergonomic Task Chair will fit nicely with any room decor and enhance the look of your workspace. The sleek black fabric and simple, classic look of this chair makes it a great fit in any workspace. The durable nylon base is scuff proof and sits atop five dual caster wheels that allow you to move effortlessly around the room. ![]() Underneath the chair you will find the pneumatic gas-lift seat-height control that helps with customizing the chair to fit your needs. The seat is generously padded with high-density foam that contours to your body and creates a luxurious seating surface. I would definitely recommend friends and family to purchase this chair. The chair is sturdy, comfortable, and appealing to the eyes. Nylon armrests are ergonomically positioned for additional arm support while you type or work. Installation was easy and fun Mainstays has a step-by-step video which helps anyone put the chair together in under 15 minutes. The nylon panel contours to your lower back providing a nice lower lumbar support and helping improve posture. ![]() The chair back features a breathable mesh fabric and lower lumbar support panel. The Mainstays Ergonomic Mesh Back Office Chair is the perfect chair to get you through your workday. ![]() It is one of the most well-known learning style models and is widely used in education and training contexts. The VARK model was developed by Neil Fleming in the 1980s. For example, the VARK model (explored in the video), which is one of the most well-known models, identifies four different styles: visual, auditory, reading/writing, and kinesthetic. There are several different models that have been proposed, each with its own set of categories or dimensions. This idea is based on the assumption that people have different cognitive and learning preferences, and that these preferences can influence how well they learn in different situations. The concept of learning styles refers to the idea that individuals have a preferred way of learning that is most effective for them. It may be more effective to focus on these factors rather than trying to match teaching methods to an individual's supposed learning style. Overall, it is important to recognize that individuals may have different preferences for how they learn, but it is also important to consider other factors that can affect learning, such as the subject matter being studied, the quality of the teaching, and the individual's motivation and engagement. Some researchers have found that there is little to no empirical support for the idea that individuals have a preferred learning style, and that the concept may not be useful in predicting how well an individual will learn in a particular situation. One of the main criticisms of the concept is that it is not based on solid scientific evidence. ![]() Some educators have found that matching teaching methods to an individual's learning style can be beneficial, while others have found little to no evidence to support the idea. That this demonstration still needed to be presented indicates the apparent unwillingness of the myth to die. A fascinating 2021 YouTube video titled " The Biggest Myth in Education" shines an unforgiving yet entertaining light on this flawed notion with its man-on-the-street interviews accompanied by cognitive/memory tests. There is more than a little debate among educators and researchers about the effectiveness of learning styles, which refer to the idea that individuals have a preferred way of learning that is most effective for them. (You can even make it interesting by using goofy voices.Do Learning Styles Exist And.Does It Matter? Instead, curl up in your room or another study space and read aloud to yourself. If you're given a homework assignment that involves reading a lengthy chapter, don't feel like you're trapped into a silent reading session. This technique will help you focus your attention on the auditory process, rather than any other visual stimuli that might be in front of you. Then, listen to the recording while you walk to class, exercise, or get ready for bed. Record yourself reading key terms and their definitions out loud.Encourage other students when they speak so that others feel just as comfortable as you do speaking in front of a group. Talking about your ideas and voicing your questions will increase your understanding of the material. Participate in class discussions as much as possible.(Music with lyrics may be too distracting.) Listen to lyric-free music while you study. Find a spot in the front row so that you can hear every word of the lecture. Later, you can listen back to the recording and take notes on the most important information. You'll process the information much better this way than if you try to jot down every word the teacher says. During class, focus your brain power on listening closely to the lecture. Ask your instructor's permission to create audio recordings of class lectures. Verbally reinforcing the information will help you retain it, especially if you have to memorize lots of details. Team up with a study group or a reliable study partner and quiz each other on the content. Add your meat to a large mixing bowl and combine it with sour cream, the soup cans, the veggie cans, and part of the shredded cheese. ![]() Cook it until the meat is no longer pink, then drain the skillet. ![]() You’ll brown the ground beef and then add the onion, seasonings, and Worcestershire sauce. Napoleon Dynamite How do you Make Tater Tot Casserole from Scratch? It only takes 15 minutes to put it together and 45 minutes to bake, leaving you with time to relax or whip up a few sides, whatever you’d prefer! As mentioned, you should have all these things in your kitchen, so put them to good use. This tater tot hotdish recipe couldn’t be easier. Worcestershire sauce – Brings out the best in the beef.Seasonings – Garlic powder, salt, and pepper can all be found on your spice rack, no doubt!.Sour cream – Making tater tot casserole with sour cream adds more richness and tang.Shredded cheddar – Is there anything better than cheese to bring this all together? Spoiler alert: nothing is better than cheese!.My kids love this tater tot casserole with green beans. Veggie cans – You’ll also need one each of corn and green beans.Soup cans – You’ll need one each of condensed cheddar cheese and cream of mushroom.Ground beef – For a tater tot casserole with ground beef, be sure to choose lean to balance the fat content of the meat.Frozen tater tots – The star ingredient of today’s recipe!.Trust me, it’s the one everyone heads back to for seconds every time! Believe it or not, these things come together to make a savory, rich, creamy yet crispy potato-y meal. The beauty of the best tater tot casserole is that it is made with stuff you’ve got in your kitchen right now. When my kids were smaller, they called it “tot tot.” Call it what you want as you trot this tater tot hotdish out for everything from potlucks to family dinners! And since you know what’s going into it, you can feel good about serving it up to your whole family. But it’s full of flavors that even grownups love. As the name implies, it’s made with tater tots which make it kid-approved instantly. That’s where this tater tot casserole recipe comes in. Powered by the ESHA Research Database © 2018, ESHA Research, Inc.Sometimes, we all need a hug from the inside. If you are following a special diet for medical reasons, be sure to consult with your primary care provider or a registered dietitian to better understand your personal nutrition needs. (-) Information is not currently available for this nutrient. ![]() (For example, it’s recommended that people following a heart-healthy diet eat less sodium on a daily basis compared to those following a standard diet.) Depending on your calorie needs or if you have a health condition, you may need more or less of particular nutrients. Per the Food and Drug Administration (FDA), the daily value is based on a standard 2,000 calorie diet. Percent Daily Value (%DV) found on nutrition labels tells you how much a serving of a particular food or recipe contributes to each of those total recommended amounts. * Daily Values (DVs) are the recommended amounts of nutrients to consume each day. Nutrition information is calculated by a registered dietitian using an ingredient database but should be considered an estimate. |
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