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When you read that the overwhelming majority of the shows that users of, say, Netflix, watch are due to Netflix’s recommendation engine, you know they’re doing something right.Algorithms are one of the foundations of our technological world, and are driven by the scientists and engineers behind the scenes that write all of these different algorithms. What works for you might not work for me. I’ve never asked myself, “What’s the most efficient way I can traverse the streets of San Francisco?” It’s not relevant to my objective.Īlgorithms are a great way of thinking about efficiency, but the question has to be, “What approach can you optimize for that objective?” That’s what worries me about self-help: Books give you a silver bullet for doing everything “right” but leave out all the nuances that make us different. I walk for several miles every day, all throughout the city, as I find it relaxing. There are cases when that’s not the quality we want to optimize for - for instance, learning or love. When we care about efficiency, thinking in terms of algorithms is useful. What problems do you wish you could solve via algorithm but can’t? And then one science journalist with a large audience wrote about it, and the project took off and hasn’t stopped since. With, “Bad Arguments,” I spent a month pouring close to $5,000 into advertising for that project with moderate results. And to get that first spark, a person who is connected to the largest number of people who are likely to engage with that post, needs to share it. Again, if we think of it in terms that are relevant to algorithms, we’d say that the challenge with making something go viral is really getting that first spark. I’ve posted things on social media that have died a sad death and then posted the same thing at a later date that somehow did great. What are the secret ingredients of a successful Facebook post? Tag your photos, engage with users who tag their photos with the same hashtags, and you should be on your way to stardom. You mention Instagram: There, the hashtag is one way to enter that ball of links. It’s much easier to get to people whom you might be interested in and who might be interested in you if you can start within the ball of links that connects those people, rather than starting at a random spot. The concept of links and networks, which I cover in Chapter 6, is relevant here. For instance, what is the most efficient way for a machine to store a prioritized list, and what happens when the equivalent of you scratching an item from a list happens in the machine’s list? How is a store analogous to a graph (an abstraction in computer science and mathematics that defines how things are connected), and how is navigating the aisles in a store analogous to traversing a graph? Nobody follows me on Instagram. How do you prioritize things on your list? Order the items in a way that allows you to avoid walking down the same aisles twice.įor me, the intriguing thing is that the grocery store is a scene from everyday life that I can use as a launch pad to talk about various related topics, like priority queues and graphs and hashing. What do I do?ĭo you know what the grocery store looks like ahead of time? If you know what it looks like, it determines your list. I’m going to the grocery store and only have 15 minutes. Two, anyone who is already familiar with the field and wants to experience a way of explaining some of the fundamental concepts in computer science differently than how they’re taught. One, anyone, be it a learner or an educator, who is interested in computer science and wants an engaging and lighthearted, but not a dumbed-down, introduction to the field. I wrote the book with two audiences in mind. These activities can be mapped to one or more fundamental algorithms, which form the basis for the field of computing and have far-reaching applications and uses. I take algorithms and put them in a scene from everyday life, such as matching socks from a pile, putting books on a shelf, remembering things, driving from one point to another, or cutting an onion. My approach to making algorithms compelling was focusing on comparisons. Why did you write this book, and who can benefit from it?Īll the books I came across that tried to introduce computer science involved coding. Note the mention of “deciding between.” Computer scientists do that all the time, and I was convinced that the tools they use to evaluate competing algorithms would be of interest to a broad audience. Algorithmic thinking is taking a step back and asking, “If it’s the case that algorithms are so useful in computing to achieve predictability, might they also be useful in everyday life, when it comes to, say, deciding between alternative ways of solving a problem or completing a task?” In all cases, we optimize for efficiency: We care about time or space. The branches are smaller because they often contain only part of a feature. Instead, TBD takes a more continuous-delivery approach to software development, and branches are short-lived and merged as frequently as possible. This long time stretch can make the process of merging difficult due to divergence in source code between dev and feature, resulting in a lengthy code review process when looking to create a release branch to be deployed. A new branch is not merged to dev until a feature is complete, sometimes working for long periods on the local machine.For adding feature/solving bugs, a new issue is created and the corresponding feature branch is created. There are two branches to record the history of a project: dev (which integrates new features), and master (which store the official record history after it is confirmed by QA that there is a stable dev build ready for release). To understand the development of trunk-based development (TBD) and why it is the most popular strategy among teams these days, it’s useful to look at the original disruptive strategy, Gitflow, which had the policy of feature-branch development. Nor did we necessarily have expected outcomes in mind when these policiesĮvolved -it just seemed like nothing else worked. Google is not the only organization to have discovered this -nor Relationship between trunk-based development and high-performing software In Accelerate and the most recent State of DevOps reports, DORA (Google’sĭevOps Research and Assessment team) points out that there is a predictive Note: Some of this section’s content and images are from a blog by Optimizely However, whatever git client is being used, you should have the following mental model for managing branches: Seamless experience across operating systems. Intuitive UI, the flexibility to switch between a GUI or a terminal, and a It makes Git more visual and accessible with an Millions of developers and teams around the world choose GitKraken Client GitKraken attempts to solve the listed problems and brings out the best of both approaches. Saving developer time in managing source code.Now, large projects divided into various teams typically want to effectively use git while: Xkcd even has a dedicated comic strip for git: However, it is more intuitive.ĭiscuss with your partners on what would be some use-cases where you would prefer interfacing with git via CLI over GUI and vice-versa. GUI via IDE - does not provide extensive support for advanced git commands.However, complex workflows can be automated and have high flexibility in running commands. CLI - does not feel intuitive and accessible due to the interface being a leaky abstraction.However, there are primary issues with doing version control for both approaches: Many students taking this course would have interfaced with git primarily via a terminal or inbuilt into IDEs (VSCode/IntelliJ for example). You have activated the Github Student Developer Pack.(Optional but recommended) You have a local SSH key for adding to SSH agents (GitHub and GitLab).You know about the basics of git (primarily from COMP2100).You have git, GitKraken and python installed.In case your student account is not verified by the start of the tutorial, you can also sign up for a Trial Period, which would cover the activities required for this tutorial. Note that the verification process after signing up could take up to 2 days (however most accounts are verified within an hour), so it would be beneficial to start this process as soon as possible. Collaborating with other developers on projectsįor using GitKraken for free, you will need to sign up for GitHub Education Student Developer Pack with your ANU email ID.If you haven’t already done so, fill in the Statement of Originality for Individual Assignment 1 by Friday 12th of August, 11:59 pm.Double-check your assignment group within your tutorial has not changed, i.e. Note: Some tutorial groups may have undergone some slight last-minute modifications. Extension: Resolving bugs in large codebases.Task 5: Doing code reviews and resolving merge conflicts.Task 3: Branching, committing and pushing.Task 1: Forking a repo and adding collaborators.Logging In and Activating GitKraken Pro.VCS differences between SE Google vs others. More than often, the cause of cardiomyopathy is unknown. Particularly at-risk breeds of cats for taurine deficiency include the Burmese, Abyssinian, and Siamese. Taurine deficiency is often seen in cats fed a non-commercial diet but can also occur in cats with normal taurine intake. Other causes include hyperadrenocortism, aortic stenosis, anaemia, systemic hypertension and dietary deficiency of taurine, an essential nutrient. There are many causes of cardiomyopathy, however, in older cats thyroid disease (hyperthyroidism) may cause a secondary cardiomyopathy. Specific blood tests may be done in order to check that the cardiomyopathy is not secondary to some other disease (see below). Electrocardiography (ECG) rarely provides useful information on heart conduction and size. Cardiac ultrasound scans are indispensable in distinguishing between the different types of cardiomyopathies. Surviving cats however are at risk of recurrence.ĭiagnosis of cardiomyopathy is made on the basis of clinical signs such as those of congestive heart failure, in addition to more specific tests such as chest x-rays and cardiac ultrasound scans (Echocardiography). Approximately 50% of affected cats survive the crisis and those that survive typically show steady improvement in limb function usually within 24 to 72 hours after presentation. Thromboembolic disease is frequent and life-threatening complication of any cardiomyopathy. Cats with thromboembolic disease often become paralysed suddenly without any physical trauma to the cat. This result in obstruction to blood flow to the tail and back legs, which is usually very painful, and the back legs become paralysed and cold to touch. These particles are called emboli and the most common place for them to lodge is at the bottom of the aorta, which is the biggest artery in the body. If parts of the thrombus become dislodged, they can travel in the bloodstream and become lodged in smaller blood vessels. The blood clot then becomes organised and is known as a thrombus. gums), and weak pulses due to a low blood volume resulting from the heart disease.Ģ. Thromboembolic disease: Altered flow of blood in the enlarged heart chambers predisposes to the formation of a blood clot within the chambers. Other clinical signs include hypothermia, pale mucous membranes (e.g. In some cases the cat may faint suddenly from arrhythmias (abnormal heart rhythm). These clinical signs result from a failure of the heart to efficiently pump blood around the body resulting in pooling of the blood in the veins and excess fluid accumulation in the lungs, chest and abdomen. The major long-term concerns with all types of cardiomyopathies are:ġ. Development of congestive heart failure: Breathlessness (panting, open mouth breathing, increase respiratory effort and rate) and lethargy or weakness is the most frequently noticed signs of congestive heart failure. Occasionally, a heart murmur or alterations in heart rhythm may be detected during routine vet examination and these may be the only evidence of heart disease during the early stages of the disease. This makes it difficult to diagnose cardiomyopathy until it is quite advanced. They may be sleeping more or playing less than the usual, all of which are subtle signs that are difficult to pick up on. Often the cats will alter their activity levels to those that they can cope with. This situation is known as compensated heart disease. In the early stages of the disease, the cat may be able to cope and hence show no overt signs of the disease. The broad range of clinical signs seen in cats with cardiomyopathy depends on the severity of the disease. What are the clinical signs seen with cardiomyopathy in cats? In all cases, the heart disease may result in clinical signs of heart failure. A fourth cardiomyopathy, Arrhythmogenic Right Ventricular cardiomyopathy or ARVC has recently been described but it is very rare. In cats, there are at least 3 classes of cardiomyopthies that have been described, namely hypertrophic, restrictive and dilated cardiomyopathy. In cats, there are at least 3 classes of cardiomyopthies that have been described. Cardiomyopathy may be seen as a primary condition or secondary to other diseases. Cardiomyopathy is a term used to describe a group of diseases involving the heart muscle. Amazon Prime VideoĪcross the Solar System in the Belt, Naomi searches for Filip (Jasai Chase Owens), the son she was forced to leave, only to be kidnapped by him and reunited with his father-her abuser-Marco and her old comrades. It’s implied that, in addition to joining a gang to survive, Amos was forced into sex work as a child, illuminating reasons for his behavior as an adult. It’s implied that, in addition to joining a gang to survive, he was forced into sex work as a child, illuminating reasons for Amos’s violent tendencies and emotional detachment. In flashback scenes on Earth, the audience meets young Amos, who’s taken in by a flawed, but good-intentioned woman after living on the street. While viewers are offered glimpses of the two characters’ backstories in previous seasons of the show, the most recent episodes hold nothing back. “Everybody there is carrying the weight of their history, and some of those histories are terrible.” Among them are Naomi Nagata (Dominique Tipper) and Amos Burton (Wes Chatham), who, in parallel journeys, revisit their past trauma. The Rocinante is docked for long-term repairs, and the crew are free to pursue personal missions. While the governments of Earth, Mars, and the Belt scramble to deal with the fallout from this terrorist attack, smaller-scale dramas unfold across the Solar System. Sent by Belter freedom-fighter Marco Inaros (Keon Alexander), three rocks impact the planet, killing millions of people and injuring and displacing millions more. Season five of The Expanse picks up where season four left off-with asteroids hurtling toward an unsuspecting Earth. In season five, The Expanse heavily explores themes of trauma, abuse, and intimate partner violence, and more so than many prestige dramas grappling with these topics, the sci-fi series does them justice. And more often than not, it succeeds.īut the show’s commitment to accuracy isn’t limited to its scientific elements, like its realistic depiction of people’s movements in zero-g, and the series has garnered acclaim for more than just its nuanced representation of our hypothetical sociopolitical future. From the ecological collapse that will push people off of Earth, to space travel (warp drive is a bunch of hooey), to the political dynamics of an interplanetary human society, The Expanse tries to get the details right. Corey, the joint pseudonym of authors Daniel Abraham and Ty Franck, The Expanse is singular among recent sci-fi TV for its realism. Based on novels of the same name by James S.A. The series’s penultimate season is rated 100% fresh on Rotten Tomatoes, with critics commending the actors’ strong performances and the showrunners’ attempt to accurately portray a not-so-distant future in which humans have colonized the Solar System. Science fiction epic The Expanse has always been good, but during its fifth and latest season, which aired on Amazon Prime this winter, more people seemed to notice just how good it is. On The Expanse characters like Amos (Wes Chatham) and Naomi (Dominique Tipper) couldn’t be more different, but their traumas are universal. It is the best software free WhatsApp export and recovery software that will definitely get back your data. We also saw how to recover WhatsApp for free with the best and the most recommended tool, that is, Tenorshare UltData. In the above article, we saw the best WhatsApp data recovery software. Imyfone Iphone Whatsapp Recovery 6.5.0.1 Crack However, the tool has limited compatibility issue. 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In late 1967, Gabriel Mekler urged Kay to re-form the Sparrows and suggested the name change to Steppenwolf, inspired by Hermann Hesse's novel of the same name. Breakthrough, success, and decline (1967–1972) In 1965 John Kay joined the Sparrows, a popular Canadian band, and was followed by Goldy McJohn. Although they fell short of enough votes to qualify for induction that year, in 2018 the Rock and Roll Hall of Fame selected one of their biggest singles – 1968's "Born to Be Wild" – as one of the first five singles that shaped rock and roll to be inducted into the hall in its history. In 2016, the Rock and Roll Hall of Fame nominated them for induction in 2017. In Canada, they had four top 10 songs, 12 top 40, and 14 in the top 100. The band was called John Kay & Steppenwolf from 1980 to 2018. Today, John Kay is the only original member, having been the lead singer since 1967. Steppenwolf enjoyed worldwide success from 1968 to 1972, but clashing personalities led to the end of the core lineup. Steppenwolf sold over 25 million records worldwide, released seven gold albums and one platinum album, and had 13 Billboard Hot 100 singles, of which seven were Top 40 hits, including three top 10 successes: " Born to Be Wild", " Magic Carpet Ride", and " Rock Me". Guitarist Michael Monarch and bass guitarist Rushton Moreve were recruited via notices placed in Los Angeles-area record and musical instrument stores. The group was formed in late 1967 in Los Angeles by lead singer John Kay, keyboardist Goldy McJohn, and drummer Jerry Edmonton, all formerly of the Canadian band the Sparrows. Steppenwolf was an American-Canadian rock band that was prominent from 1968 to 1972. You also need to make sure a WordPress site is backed up at least once per month for a static website but for active and eCommerce, probably once per day. If you don’t maintain a WordPress website, it can get hacked fairly easily due to hackers exploiting dated plugins and themes. When building WordPress websites, you need to ensure your website is managed, which includes: Let’s get into the review! What is Wordify Managed WordPress Hostingīefore can understand what Wordify is, we need to understand what managed WordPress hosting is. Just make sure to send me an email to letting me know you’ve purchased Wordify via my links and I’ll send you the content via dropbox for you to download. Options of Wordify and how they are usedĪfter reading the whole blog, you’re going to be in a much better position when it comes to purchasing it.Īlso, I’m going to include some of my affiliate links for you to purchase Wordify and as a special thank you for using my links – I will send you over £3500 worth of bonus WordPress training.Here is what I’m going to cover in today’s Wordify review blog: This is why Managed WordPress hosting can be so useful and to be frank, its hard to come across a well priced, nicely designed, and most importantly, easy to use managed WordPress hosting company. I’m sure you can agree when you own a digital agency, and you’re trying to manage many WordPress sites, like updating them for example it can get tedious and often, pain in the arse. I stumbled across Wordify the other week when I was browsing through new WordPress managed hosting options. If you’ve just seen an advert or heard someone talking about Wordify and like the idea but want to see how it all works and if its a good fit for you – keep reading. Several techniques can be used to extract the firmware from an electronic device.īut before you start, make sure the firmware image is not available on the manufacturer’s website. Even if it’s just for fun! Firmware extraction techniques If you are a security researcher, you may want to extract the firmware of the device to look for vulnerabilities in the software.Īnd what if the device is very old and is no longer being manufactured or sold by the vendor? You may want to clone it, and extracting the firmware image will be essential in this process.Īs we can see, there are many situations that can motivate us to extract the firmware from an electronic device. What if you forgot your credentials and lost access to the device? One possibility to regain access is to extract and change the firmware image. Without access to the source code, one possibility is to extract the firmware to make the necessary changes and then update the device. You may want to improve or change the behavior of the device. Extracting and analyzing the firmware image can be a viable option to understand its operation. Now imagine that you want to understand better how the device works, but you don’t have much information about it. Imagine an electronic device like a router, an IP camera or a hard disk. This process of extracting the firmware image is also called dumping or snarfing.īut why extract the firmware from an electronic device? Why? The extraction process involves reading and copying the firmware image stored in the device’s memory to a file on your computer. The firmware, a program that executes in a dedicated way and with a specific purpose in a microcontroller or microprocessor, is usually stored in a persistent memory device like a NAND/NOR flash or EEPROM. Info : target fx3.JTAG is a physical hardware interface that makes it possible, among other things, to extract the firmware image from electronic devices. Warn : GDB connection 1 on target fx3.cpu not halted Info : accepting 'gdb' connection on tcp/3333Įrror: timed out while waiting for target haltedĮrror executing event gdb-attach on target fx3.cpu: Any help you could provide would be much appreciated Error: unknown EmbeddedICE version (comms ctrl: 0x00400000) If I load a program into memory and try to enter commands into gdb I get further errors about the CPU not being halted. If I leave it pulled up I get repeated errors till I try to attach a debugger and then it complains about not being halted. Info : Listening on port 4444 for telnet connectionsĮrror: Couldn't calculate PC of next instruction, current opcode was 0x00000000 Info : Listening on port 6666 for tcl connections Info : Listening on port 3333 for gdb connections Info : starting gdb server for fx3.cpu on 3333 Warn : WARNING: unknown debug reason: 0xf Info : fx3.cpu: hardware has 2 breakpoint/watchpoint units Warn : Bypassing JTAG setup events due to errorsĮrror: unknown EmbeddedICE version (comms ctrl: 0xffffffff) Open On-Chip Debugger 0.11.0+dev-00103-gff755a575-dirty (-10:11)Įrror: JTAG scan chain interrogation failed: all onesĮrror: Check JTAG interface, timings, target power, etc.Įrror: Trying to use configured scan chain anyway.Įrror: fx3.cpu: IR capture error saw 0x0f not 0x01 If I ground TSRST I get the following errors, and if I attempt to attach gdb I get further errors Is there an error in the way I've connected to or configured the hardware, or is there some mistake or omission in my configuration? Target create $_TARGETNAME arm926ejs -endian $_ENDIAN -chain-position $_TARGETNAME Jtag newtap $_CHIPNAME cpu -irlen 4 -ircapture 0x1 -irmask 0xf -expected-id $_CPUTAPID Reset_config trst_and_srst srst_pulls_trst # debug probe is being used, just replace the "interface cy7c65215" line with the # The interface selected below is the CY7C65215 based JTAG debug probe. # FX3 has a standard ARM JTAG TAP and can work with a standard ARM926EJ-S configuration. # OpenOCD configuration file for Cypress FX3 (ARM926EJ-S). The modified config file is as follows (I have attached a zipped copy) # It's a custom board, but the hardware seems alright since I've gotten the bulk loop example and several others to work on the board. I make sure the device is in bootloader mode, but when I run `openocd -f -c init`I encounter errors. Because the bundled config is written for an older version of openOCD and a different interface, I have modified the config accordingly. I'm trying to debug firmware written for a board with a CYUSB3035 FX3 IC using openOCD and a Digilent HS2 JTAG adapter. When the job is completed, you will be able to download your resized images as a zip file. First, locate the images that you want to resize in File Explorer or on your desktop. Batch image, picture and photo converter, resizer DropIt A flexible tool to automate processing & organizing files and folders. Crop, resize, compress, convert, and more. This free tool allows you to resize up to 100 pictures at one time. With Image Resizer enabled, resizing images is only a few clicks away. To resize JPEG images use our Image Resizer tool. iLoveIMG is the web app that helps you modify images in bulk for free. Compress Photos or a photo converter app used to. Start by clicking on 'Add Multiple Pictures' below. Resize compressed images with this picture size reducer app and JPEG Compressor. This free tool allows you to resize up to 100 pictures at one time. Download the Image resizer & convert big image to small image. JPG files open automatically on popular web browsers such as Chrome, Microsoft applications such as Microsoft Photos, and Mac OS applications such as Apple Preview. Image Resizer helps you quickly reduce image size or image resolution. To select a specific application to open the file, utilize right-click, and select "Open with" to make your selection. Simply double-clicking the JPG file will usually result in its opening in your default image viewer, image editor, or web browser. If you need even better compression, you can convert JPG to WebP, which is a newer and more compressible file format.Īlmost all image-viewer programs and applications recognize and can open JPG files. You can use our compress JPEG tool to reduce the file size by up to 80%! As such, the relatively small size of JPG files makes them excellent for transporting over the Internet and using on websites. The considerable compression that JPG offers is the reason for its wide use. It supports more than 100 image formats and you can convert and resize an unlimited number of images to any of the most popular formats. Batch image, picture and photo converter, resizer DropIt A flexible tool to automate processing & organizing files and folders. For an 8" x 10" print, resolution should be 1536 x 1024 pixels minimum.Įxplore how to use Lightroom to crop, edit, and resize your images – plus other features you didn’t know you needed.JPG (Joint Photographic Experts Group), is a universal file format that utilizes an algorithm to compress photographs and graphics. Converseen is an open source batch image converter and resizer for Linux and Windows.For a 5" x 7" print, resolution should be 1024 x 768 pixels minimum.For a 4" x 6" print, resolution should be 640 x 480 pixels minimum.Here’s some general guidance for pixel resolution. Save your resized images to a new folder to delineate them from the originals.ĭepending on your camera and photo needs, you’ll want to follow different rules for image sizes. Click save and make sure Don’t Enlarge is checked. Look for File Settings and Image Size on the export screen. Select Import and then select your images. Place all of the images you want to resize in one folder. Bulk resize photos in 5 easy steps.īulk resizing is easy - simply open Lightroom and follow the steps below. This feature allows you to crop all your photos to a fixed size and output them at a certain set of pixel dimensions to create the highest image quality. If you’re working on a photoshoot and need all your photos resized into a specific format, look no further than Adobe Lightroom’s bulk resize feature. Follow these steps to bulk resize your images. |