IT |
気になる、記になる… |
Beats、完全ワイヤレスイヤフォン「Beats Fit Pro」の鮮やかな3つの新色を2月24日に発売 |
https://taisy0.com/2023/02/22/168754.html
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beats |
2023-02-21 15:16:06 |
AWS |
AWS Startups Blog |
Fighting funding disparity with Amazon Catalytic Capital |
https://aws.amazon.com/blogs/startups/fighting-funding-disparity-with-amazon-catalytic-capital/
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Fighting funding disparity with Amazon Catalytic CapitalIn October Amazon launched its Catalytic Capital initiative investing million in funds to underrepresented entrepreneurs Now AWS is further accelerating the conversation through strategic partnerships and data driven reporting with the publication of the State of Black Venture Report launched Tuesday at the State of Black Venture event hosted by BLCK VC at the AWS Startup Loft in San Francisco California |
2023-02-21 15:33:51 |
python |
Pythonタグが付けられた新着投稿 - Qiita |
sqlite3 トランザクション制御 リファレンス |
https://qiita.com/puchi2121/items/56d26fa9137b79ab183a
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sqlite |
2023-02-22 00:29:41 |
python |
Pythonタグが付けられた新着投稿 - Qiita |
【Python】ネスト構造の辞書をfor文を書かずに取得する(再帰関数) |
https://qiita.com/BUU-SAN/items/66d0da5c0230835bb18f
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関数 |
2023-02-22 00:18:30 |
海外TECH |
Ars Technica |
Texas is planning to make a huge public investment in space |
https://arstechnica.com/?p=1918963
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location |
2023-02-21 15:04:40 |
海外TECH |
DEV Community |
Python Function Tutorial |
https://dev.to/max24816/python-function-tutorial-5fh0
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Python Function TutorialPython function is a block of reusable code that performs a specific task Functions can be called multiple times from within a program which allows for efficient code reuse and organization In Python functions are defined using the def keyword followed by the function name a set of parentheses and a colon The body of the function is indented below the function definition Functions can take parameters which are passed to the function when it is called Functions can also return values which can be used by the calling code Python functions can have default parameter values making them more flexible and easier to use Functions are an essential part of Python programming and are used extensively in all types of applications They allow developers to organize their code and improve its readability maintainability and reusability Python Function Exampledef greet name This function greets the person passed in as a parameter print Hello name How are you today greet Max Output Hello Max How are you today In the above example we have defined a function named greet which takes one parameter name The function prints a greeting message to the console using the print statement To call the function we simply pass the name of the person we want to greet as an argument to the greet function Python Function with Return Type Exampledef add numbers x y This function takes two numbers as input and returns their sum return x yresult add numbers print The sum of and is result Output The sum of and is In this example we have defined a function named add numbers which takes two parameters x and y The function returns the sum of x and y using the return statement We call the add numbers function and store its result in a variable named result We then print the result to the console using the print statement Python Function with Default Arguments Exampledef print message name message Hello This function prints a message to the console print message name print message Max print message Bob Good morning Output Hello Max Good morning Bob In this example we have defined a function named print message which takes two parameters name and message The message parameter has a default value of Hello If we call the function with only one argument name it will use the default value for message If we call the function with two arguments name and message it will use the value we passed in for message Assigning a Function to a Variable Exampledef print hello print Hello world greeting print hellogreeting Output Hello world In this example we have defined a function named say hello which prints a greeting message to the console We then assign the say hello function to a variable named greeting We can call the greeting function to execute the say hello function and print the greeting message to the console |
2023-02-21 15:42:06 |
海外TECH |
DEV Community |
Memory Management In Python |
https://dev.to/superherojt/memory-management-in-python-2f60
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Memory Management In PythonMemory management means allocating and de allocating memory resources for your data in a computer program It is essential to software development because it affects your code or program s overall performance and efficiency In this article you will learn Python s inner workings of memory management You will understand concepts like Python memory manager garbage collection and reference counting Whether you re a beginner in Python or an experienced developer this article will provide a comprehensive overview of memory management in Python and help you make better decisions to optimize your code Importance Of Memory Management In programming memory management allows your codes or programs to run effectively Proper memory management will prevent your code from crashing or having memory leaks Memory management is helpful for the following reasons Allocating memory for newly created objects De allocating memory for objects that have been used Once your program gets executed the memory used will be de allocated Simple mistakes like forgetting to de allocate memory or which memory is currently in use can cause your program to lag and have serious performance issues This is because the memory will be too full to run at top speed The Python Approach to Memory ManagementEarly programming languages like C and C required developers to manage memory by manually allocating and de allocating memory when coding This method is inefficient because sometimes developers can unconsciously skip one of the processes and have problems with their program In Python memory management is handled automatically by the Python memory manager Similarly to other languages the Python memory manager uses stack and heap memory Stack Memory Stack memory stores temporary data function calls and references to objects stored in the heap memory Read more about stack memory here Heap Memory Heap memory stores objects and data that need to be in memory longer than stack memory This article speaks more about heap memory This image gives a basic overview of what each memory stores in Python In Python whenever a variable is created the Python memory manager will check if there is an object with that same value in memory If there is the newly created variable will point to the existing object in memory instead of creating an entirely new object For instance consider the code snippet below age score In the program above you ll expect both variables to have unique memory spaces because they serve different purposes The Python memory manager will however not do this Since both variables have the same value the memory manager will create one object representing both references This image gives a clear view To confirm this make use of the id function in Python like so From the code above you can see that both variables have the same ID It confirms the fact that they both reference the same object in memory If another variable with the same value is created it will reference the same object in memory This approach is better than creating a new object in memory for each variable There are some things to note about this approach If one of the variables gets reassigned it is moved to a different memory location However if its new value already has an object in memory it is moved to that memory address Mutable data types such as lists are assigned different objects even if they contain the same items This is because changes to one of such lists will affect the other list s if they are in the same memory location Garbage Collection in PythonGarbage collection is when objects not in use are removed from the memory periodically The garbage collector automatically does garbage collection The two ways to implement garbage collection in Python are Reference countingGenerational garbage collection Reference Counting in Python Reference counting is an approach in memory management that keeps track of the number of times an object is referenced in memory You reference an object whenever you assign a variable Whenever you reference an object the reference count increases by This example will shed more light x This is my house y This is my house z xSince variables x y and z refer to the same values they have the same memory location However the reference count of the variable x increases with every new assignment You can get an object s reference count by using the sys getrefcount function available in the sys module You can verify the reference count of the above code snippet below Some of the things you should note are The sys getrefcount function adds an extra reference to the count This means if the initial reference of an object is sys getrefcount will return If one of the variables is reassigned the reference count will decrease by When the reference count reaches the object is deallocated from memory You should read this article and this article for more information on reference counting Generational Garbage CollectionGenerational garbage collection was a feature added in Python Before this Python used only reference counting to manage memory but it needed a more efficient method to solve the issue of reference cycles When two objects in memory hold references to each other it is called a reference cycle If this happens the reference count of the objects will not reach and the memory not be free The following is an example of how an object can get stuck in a reference cycle superheroes Captain America Superman Batman sidekicks Bucky Jimmy Oslen Robin superheroes append sidekicks sidekicks append superheroes del superheroesprint sidekicks In the code above even after the variable superheroes is deleted it still has a reference in the memory You can confirm this when you print the last element of the variable sidekicks The same thing will happen if sidekicks was deleted or if both variables get deleted You can run the above code here The garbage collector is used to fix this issue The garbage collector is a mechanism that detects reference cycles in Python and removes them The garbage collector cannot run always run because of the following reasons Nothing else in the program can run whenever the garbage collector is running until it is done This behavior can make your code slow The garbage collector usually has no work to do because reference cycles are mostly observed in large projects only To use the garbage collector you need to import it like this import gcThe garbage collector classifies Python objects into three categories called generations Each of these generations has an object threshold count The threshold count for each generation can be seen by using the gc get threshold command import gcprint gc get threshold After running this command you will get three values Each of these values represents the threshold count for each generation In the image below the first generation has a threshold of All objects start their lives in the first generation The garbage collector is activated whenever the number of objects in any generation exceeds its threshold This is the only time the garbage collector runs automatically If objects in a particular generation are not cleaned up because they still have references they are pushed to the next generation To manually activate the garbage collector use the gc collect function import gcgc collect Conclusion You have learned about how Python handles memory management Although Python automatically handles memory management the garbage collector can slow down your program if you have a large script and many objects are being created To prevent this from happening you should learn to optimize your code and manually call the garbage collector at intervals You can learn more about memory management in Python with these links Heap memory Stack memory Garbage collector Reference counting Reference counting For more content like this follow me on Hashnode and Twitter |
2023-02-21 15:23:51 |
海外TECH |
DEV Community |
How to Build a SaaS on AWS: a deep dive into the architecture of a SaaS product |
https://dev.to/ixartz/how-to-build-a-saas-on-aws-a-deep-dive-into-the-architecture-of-a-saas-product-169f
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How to Build a SaaS on AWS a deep dive into the architecture of a SaaS productBuilding a SaaS product is a complex task There are many things to consider from the business model to the technology stack In this article we will focus on the technology stack I use and learn how I build my SaaS product on AWS I ll describe the various services and how they fit together to provide a scalable secure and reliable SaaS product It took me months to build my first SaaS product During this time I had to learn a lot about AWS and gain a ton of experience This article is an opportunity for me to share my knowledge and I also hope it will inspire you to build your own SaaS product Architecture DiagramA picture is worth a thousand words so let s start with the architecture diagram of a SaaS product It gives you a high level overview of the various components of the architecture We will now dive into each component and see how it works You can see a live demo of a SaaS product build with my React SaaS Boilerplate fully hosted on AWS It includes everything you need in a SaaS including authentication multi tenancy amp team support user dashboard billing with Stripe and more FrontendLet s start with the frontend the part of the application that users will interact with It is the entry point to the application The frontend is written in React with Next js For performance reasons all the pages are statically generated The good news they can easily host on any static hosting service For example you can host the frontend on S with Cloudfont as a CDN But with modern tools I recommend using AWS Amplify Hosting It s Vercel and Netlify alternatives in the AWS ecosystem AWS Amplify Hosting can automatically deploy your frontend application from your GitHub repository It also provides features like a custom domain SSL certificate and more The UI is styled with Tailwind CSS So I can easily style React components directly in JSX without using a library like styled components or emotion Finally I use SWR to fetch data from the backend It s a React Hooks library for data fetching a lightweight alternative to React Query easy to use and offers features like caching revalidation and more BackendThe backend code is hosted on AWS Lambda a serverless computing service that allows you to run code without managing servers It s ideal for a SaaS product because I can dedicate all my time on the product without worrying about Ops On top of that it s highly scalable and cheap To make AWS Lambda publicly accessible I need to use AWS API Gateway It s a fully managed service that makes it easy to create publish maintain monitor and secure APIs at any scale It provides features like authentication rate limiting and more I use the Serverless Framework to manage my API Gateway and AWS Lambda functions It s a framework for creating and deploying serverless apps It s super user friendly and all configurations are handled in a single YAML file I also use Zod for validating incoming data it ensure its validity before processing by the backend It s a TypeScript library that allows you to define a schema for your data and validate it It s a lightweight alternative to Joi and Yup Additionally it can prevent bugs and security issues InfrastructureThe frontend and backend codes also need to work with other services I use AWS CDK to configure and manage the other AWS services With AWS CDK I can use JavaScript and TypeScript to define cloud infrastructure So I don t need to manually set up in AWS Console by clicking around AuthenticationI use AWS Cognito to manage users With Cognito you can limit access to your application and provide a way for users to sign in Only authenticated users can access the dashboard and use the SaaS In the front end I use AWS Amplify for the authentication flow Amplify abstracts the communication with Cognito and makes it easy With a few lines of code I ve set up the signup sign in social sign in and more I don t lose my time implementing an authentication from scratch DatabaseFor data storage I use AWS DynamoDB a fully managed NoSQL database service that seamlessly integrates into the AWS ecosystem and works extremely well with AWS Lambda One disadvantage of serverless architecture is its difficulty in working with SQL databases For instance you need to set up a connection pool to connect to the database Otherwise it will exhaust your server resources The good news with DynamoDB I don t need to worry about it because there isn t any connection limit you need to manage LoggingThe application uses Pino js as a logging library It s a very fast JSON logger for Node js With the pino lambda plugin Pino is fully compatible with AWS Lambda Logs are directly sent to CloudWatch a monitoring and log management service It s a fully managed service that allows you to store monitor and access your log files from AWS services You can set up an alert when the application goes wrong with CloudWatch You can also create a custom dashboard to gain insight into the performance of your application Email serviceIn SaaS applications you have several reasons to send emails to your users When they sign up for the first time you need to send them a welcome email so they can confirm their email address When they forget their password you need to send them a reset password email To remain in the AWS ecosystem I use AWS SES a fully managed email sending service I choose not to rely on a third party email service like SendGrid Mailgun or Postmark Subscription paymentTo monetize your SaaS product you need to charge your users I use Stripe to handle the payment It s a payment processing platform that allows you to accept payments online In the application the users can choose their subscription plan and it ll redirect them to the Stripe checkout page On the checkout page they can enter their credit card information and pay for the subscription When the payment is successful Stripe will trigger a webhook to the backend The backend needs to listen to the Stripe events and update the user s subscription status in the database Additionally we need to provide users with the capability to update or cancel their subscriptions To do this I use Stripe s customer portal It s a hosted page where the users can self manage their subscriptions ConclusionIn this article we learn how to build a SaaS product on AWS A deep dive into all the components of the architecture and how they work together to provide a scalable secure and reliable SaaS product If you are currently building or planning to build your own SaaS product you should be interested in my AWS SaaS Boilerplate It s a React SaaS boilerplate that includes everything you need in a SaaS product Fully hosted on AWS you can deploy it in a few minutes with the same stack described in this post So you can use it as a starting point to build your own SaaS product and earn your st MRR |
2023-02-21 15:03:38 |
Apple |
AppleInsider - Frontpage News |
Beats Fit Pro adds three more colors to the roster |
https://appleinsider.com/articles/23/02/21/beats-fit-pro-adds-three-more-colors-to-the-roster?utm_medium=rss
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Beats Fit Pro adds three more colors to the rosterApple subsidiary Beats has updated its Beats Fit Pro with more colors giving customers more style options for the wireless earbuds New Beats Fit Pro colorsLike other products in the Beats catalog Apple often adds more colors to the range over time The Beats Fit Pro is the latest to receive the treatment Read more |
2023-02-21 15:31:22 |
Apple |
AppleInsider - Frontpage News |
Save on top tech: $510 off MacBook Pro, $50 off Apple Magic Keyboard for iPad Pro, Vitamix One Blender $130 |
https://appleinsider.com/articles/23/02/21/save-on-top-tech-510-off-macbook-pro-50-off-apple-magic-keyboard-for-ipad-pro-vitamix-one-blender-130?utm_medium=rss
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Save on top tech off MacBook Pro off Apple Magic Keyboard for iPad Pro Vitamix One Blender Today s best finds include off an eufy SoloCam a Dyson V for off a Hisense K TV off an Alienware Aurora gaming desktop and off a Samsung Galaxy Smartwatch Save on a Samsung Galaxy SmartwatchThe AppleInsider Deals Team searches the web for unbeatable sales at online retailers to develop a list of can t miss deals on the top tech products including savings on Apple products TVs accessories and other gadgets We post our top finds in our Daily Deals list to help you save money Read more |
2023-02-21 15:18:27 |
海外TECH |
Engadget |
A Pokémon Direct event will take place on February 27th |
https://www.engadget.com/a-pokemon-direct-event-will-take-place-on-february-27th-153032910.html?src=rss
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A Pokémon Direct event will take place on February thPokémon fans have something to look forward to early next week The latest Pokémon Presents event is slated for February th that s Pokémon Day fact fans at AM ET As is often the case with these livestreams The Pokémon Company hasn t given too much away about what s in store However it did say the livestream will run for around minutes You ll be able to watch it on The Official Pokémon YouTube channel The smart money is on news about paid expansions or other updates to Pokémon Scarlet and Violet which arrived in November The pair were in rough shape when they debuted and Game Freak and Nintendo have been working to resolve the technical issues Still Pokémon Scarlet and Violet sold more than million copies between them in the first weekend making it the fastest selling game launch in Nintendo s history and over million by the end of So there s clearly a large audience that would lap up DLC The next PokemonPresents is on the way Trainers Tune in to our official YouTube channel at a m PST on February for about minutes of exciting Pokémon news in celebration of PokemonDay pic twitter com FFrmkazーPokémon Pokemon February Given how recently Pokémon Scarlet and Violet dropped and the buggy nature of the games it may be a little too early to reveal the next mainline entries in the series It s possible that we may learn details about Game Boy and Game Boy Advance Pokémon games coming to Nintendo Switch through the Switch Online service This would make sense as Pokémon Day marks the anniversary of the first games in the series ーPokémon Red and Green debuted in Japan on February th The stream also may include details on updates to games like Pokémon Masters Ex Pokémon Unite Pokémon TCG Live and Pokémon Go Speaking of Pokémon Go this past weekend saw developer Niantic ask players to stay away from a public park in Las Vegas unless they bought a pass to join an event An extra people who did not pay for the event are said to have shown up leading to spotty connections and a disrupted experience for many Niantic offered players who paid for a ticket some in game goodies to make up for the issues We ask that Trainers who do not have a ticket for Pokémon GO Tour Hoenn Las Vegas refrain from joining us at the park tomorrow to ensure a smooth event for Sunday ticket holders and Trainers who have the Sunday Extra Day Add On ーPokémon GO PokemonGoApp February |
2023-02-21 15:30:32 |
海外TECH |
Engadget |
The best robot vacuums for 2023 |
https://www.engadget.com/best-robot-vacuums-130010426.html?src=rss
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The best robot vacuums for Robot vacuums have come a long way over the past few years They re smarter more powerful and marginally better at avoiding chair legs than they were before And you don t have to shell out as much money to get one either There are also many more robot vacuum cleaners available now than there once were so deciding which to buy isn t as simple as choosing the latest model from the biggest brand We tested out many of the newest models available now to see how they stack up against each other and to help you choose the best robot vacuum for your needs Are robot vacuums worth it We tackled this question in our budget robot vacuum guide and the answer is yes especially if vacuuming is one of your least favorite chores Robots take the hard work out of cleaning your floors just turn the thing on and watch it go Any robot vacuum cleaner worth buying is semi autonomous in that it will suck up dirt around your home until its battery is low and then make its way back to its charging dock You should only have to interact with it to turn it on empty its dustbin and untangle it if it were to get stuck somewhere That s not to say robot vacuums are perfect They re almost always less powerful and less flexible than standard vacuums Since most robo vacs are much smaller than traditional models they often don t have the same level of suction you ll get in an upright machine Plus their dustbins are smaller so they will need to be emptied more frequently While WiFi connected robot vacuums give you the flexibility to start a cleaning job from anywhere using an app targeting a small area of your home can be more complicated Some robo vacs have spot cleaning features that focus the machine s attention on a specific area which almost but not quite mimics the spot cleaning you d be able to do yourself with a regular or cordless vacuum What to look for in a robot vacuumiRobt AccuSoft Co All rights reservedAs we explained in our budget guide WiFi is a key feature for most robot vacuums Some of the cheapest devices aren t WiFi connected though so if you re looking at the most affordable devices it s best to check for that feature before you buy WiFi connectivity allows a robot vacuum cleaner to do things like communicate with a mobile app which then allows you to control the device from your phone Suction power is another important factor to consider Unfortunately there isn t a standard power scale that all robo vacs adhere to so it s difficult to compare suction power among a bunch of devices Some companies provide Pascal Pa levels and generally the higher the Pa the stronger the vacuum cleaner will be But other companies don t rely on Pa levels and simply say their robots have X times more suction than other robots Ultimately we recommend thinking first about the floors in your home Do you have carpet throughout or tile and hardwood floors or a mix Robots with stronger suction power will do a better job cleaning carpets as they can get into the nooks and crannies more easily Some machines have “max modes as well which ups the suction power but also typically eats at battery life faster than the “normal cleaning mode Past a certain price threshold you ll find advanced features like home mapping improved object detection and automatic dustbin disposal Home mapping is exactly what it sounds like The vacuum uses sensors to map your home s layout as it cleans allowing you to send it to particular rooms or areas in later cleaning jobs Most robo vacs have some version of object detection but some will be better than others at actually avoiding things like chair legs and children s toys Some like iRobot s j series even go so far as to promise to avoid things like pet poop that can potentially ruin your machine Finally for peak convenience consider a robot vacuum that comes with a clean base These are basically garbage bins that are attached to the machine s charging base At the end of each job the robo vac automatically empties its small dustbin into the large clean base that means you won t have to empty the dustbin yourself and you ll only have to tend to the base once every few weeks Just keep in mind that most clean bases require proprietary garbage bags another long term expense you ll have to factor into the cost of owning one of these devices Best midrange robot vacuum Shark AI Robot Vacuum with BaseShark s RVAE AI robot vacuum with Base ticks all of the boxes that a mid range machine should It offers reliable cleaning performance its mobile app is easy to use and it produces accurate home maps On top of that its base is bagless which means you won t have to spend money every few months on garbage bags for your robotic vacuum Setting up the Shark is as simple as taking it and its base out of the box plugging the base in and downloading the companion mobile app to finish things up The machine connects to WiFi allowing you to control it via the app when you re not at home or using Google Assistant and Alexa voice commands The first journey the Shark makes is an “Explore Run during which it produces a map of your home that you can then edit from the mobile app The Shark produced a pretty accurate floorplan of my two bedroom apartment and I was happy to see a “re explore option that I could use if the map wasn t up to my standards With a completed map you re then asked to label rooms in your home That way you can send the Shark to only the bedroom for more direct cleaning jobs select “no go zones and more The first few times I ran the Shark robot I had it clean my whole apartment I was impressed by how quiet it was or rather how much quieter it was compared to other robo vacs I ve tried You ll have to turn up the volume on your TV if it s cleaning in the same room but it ll be hard to hear when it s sucking up debris down the hallway It also did a decent job maneuvering its way around the cat toys I left out on the floor The device s object detection feature claims it can avoid things as small as four inches but I found that it was much better at sensing and moving around the three foot long cat tunnel on my floor than the many tiny mouse toys But even if Mr Mouse caught the edge of the Shark s wheels now and then the robo vac took it all in stride One thing I look for when testing robot vacuums is how much attention they need from me during cleanings The best ones require no extra attention at all once they start a job they re smart enough to putter around your home move around objects and return to their base when they re finished With Shark s robo vac I never had to tend to it when it was cleaning Now I did my due diligence and picked up pieces of clothing and charging cables off the ground before running the Shark ditto for every other robot vacuum I tested so those things were never in the way Most companion apps will actually remind you to do this before starting a cleaning job This Shark machine comes with a clean base so it will empty its dustbin after every job and also during a job if its bin gets full before it s done In the latter situation the Shark will go back to cleaning automatically after it s freed up its bin That s a great feature but I found the best thing about the base to be its bagless design Shark s device is unlike most other robot vacuum clean bases because you don t have to keep buying proprietary garbage bags to outfit the interior of the base When you want to empty the base part of it snaps off and opens to eject debris and it easily locks back in place when you return it Not only is this quite convenient but it also brings the lifetime cost of ownership down since you won t be buying special bags every few months Its worth noting that Shark has a couple of models that are similar to the RVAE that just have a different color scheme a versus day clean base capacity and other minor differences The biggest feature that would impact how you use the machine is the clean base capacity we recommend springing for the day models if you want to interact as little as possible with your robo vac Runner up midrange Roomba jNot much has changed since Amazon bought iRobot a little while back the Roomba j remains a great option if you want the latest obstacle avoidance technology from the company in an attractive package The j doesn t come with a clean base but you can get the same vacuum with one for extra The biggest selling point of the Roomba j series is its upgraded AI driven computer vision which helps it detect and move around objects This includes pet poop a robot vacuum s arch nemesis and iRobot even promises that it will replace your j machine if it runs into pet poop within the first year of ownership That s one feature I was happy I never got to test as my cat kept all of her activity to her litter box Otherwise the Roomba j did a good job sucking up dirt and debris around my apartment and it didn t make too much noise while doing so All of the robo vacs I tested at this mid range level had roughly the same level of suction so there wasn t a big difference between them when it came to cleaning power Like other robot vacuums you can set cleaning schedules in the iRobot mobile app so you never have to start a cleaning job on the fly The app also has a “favorites section which lets you create profiles that you ll use all the time like “clean the living room and the entryway And if you prefer to use voice commands the robot supports Amazon s Alexa and the Google Assistant The Roomba j has Imprint Smart Mapping but unlike the Shark it took more than one runthrough of my home for it to create a complete map iRobot s app distinguishes between a regular cleaning job and a “mapping run so make sure you re choosing the latter the first few times you run the machine I tested the j which means I was treated to the roaring sounds of the machine emptying its dustbin into its clean base The emptying process isn t as simple as an automatically opening flat that shakes dirt from one garbage can to another the base actually sucks the dirt from vacuum This was the case for all of the machines I tried that came with clean bases they re all quite loud but the Roomba j was the loudest of them all The whooshing sounds last for only five to seconds but it was shocking the first time it happened Just keep that in mind if you ever decide to run your self emptying robot vacuum at night when others are sleeping Honorable mention Anker Eufy RoboVac X HybridYou may be unfamiliar with Anker s robot vacuums but they re often more affordable alternatives to the iRobots and Sharks of the world The Eufy RoboVac X Hybrid isn t a budget machine by any means but it s a solid robot vacuum that offers a few key features that many competitors don t have Plus you can often find it on sale for or even Unlike our other midrange picks the X Hybrid doesn t come with a clean base nor is there one you can purchase separately It s just a standalone robo vac but the “hybrid indicates that it s also a robot mop It has both a dustbin for collecting debris and a milliliter water tank that you can fill whenever you want to run a mopping cycle Plenty of other robot vacuums have this feature and it could be even more useful than a clean base if you have lots of tile or hardwood floors throughout your home Besides that I was impressed with how easy it was to set up the X Hybrid how accurate its mapping technology was and how many extra features it supports It has four cleaning modes auto room zone and spot and four suction levels starting with Pure at the low end and topping out at Max These features give you a lot of control over where the machine cleans and how powerfully it will do so The X Hybrid was in Pure mode the first time I ran it and I was surprised by not only how quiet it was but also how thoroughly it cleaned considering it was on the lowest suction setting There s also a “tap and go feature that lets you pinpoint any spot on your home map in the EufyHome app sending the robot there to clean Manual controls are also available which isn t something you see on a ton of robo vacs This option lets you control the machine almost like a slow and slightly clumsy RC car giving you more control over where it cleans It may not have the name recognition that iRobot or Shark do but the Eufy RoboVac X Hybrid is a solid choice nonetheless especially if you don t care to add a clean base into the mix It s an even more tempting choice if you can snag it when it s discounted Best premium robot vacuum iRobot Roomba s The Roomba s is admittedly overkill for most people but it s nothing if not one of the best robot vacuums out there You ll notice its premium features as soon as you unbox it The s is the biggest but also the most attractive robo vac I tried with a corner friendly design copper accents and a foot tall clean base The setup was quick and easy with the machine taking only a few minutes to connect to my home s WiFi and the iRobot app While the s doesn t have the Precision Navigation feature that the newer j does it has something called “Careful Driver that uses a D sensor to detect and clean around objects It seems that the main difference is that the s isn t specifically wired to avoid pet poop so keep that in mind if you have furry friends around the house However with x the suction power of a standard Roomba the s does a great job cleaning up pet hair It s also louder than the j when it s cleaning but not irritatingly so and I noticed a deeper clean in my carpets thanks to the extra suction And it changes its cleaning mode automatically when transitioning from say carpeting to a hardwood floor Even this robot vacuum bumped into a few table legs while cleaning but it was noticeably better than other machines at navigating around my furniture and correcting itself when it got stuck It also moves faster than the j so it was able to cover a bit more of my apartment before it had to return to the base for charging after about one hour of cleaning I was also pleasantly surprised to find that the s wasn t nearly as loud as the j vacuum when emptying its dustbin into the clean base With the iRobot app experience being the same across all Roombas the s stands out for its subtle premium features like its elegant design elegant looking clean base superior cleaning intelligence and top of the line suction power Aside from the extra suction those are all nice to haves rather than must haves so most people including you probably don t need the Roomba s It s the fanciest robot vacuum iRobot has to offer but you ll get a similar level of quality with the Roomba j while spending a couple hundred bucks less Honorable mention Roborock S Roborock s high end S deserves a mention for its cleaning power and number of additional features that many other competitors don t have First the S is a vac and mop combo and its mopping map automatically lifts itself out of the way when the machine reaches the carpet That means you can have it clean your whole home vacuuming and mopping in the right spots without you giving it any extra attention besides filling its ml water tank at the start The expensive machine has a longer setup process because its clean base comes in two pieces You must attach the bottom of the base where the robo vac charges to the garbage bin upper portion using a few screws and a tool that attaches to the bottom of the base Roborock provides everything you need to do this in the box so while it takes a bit more time it s still an easy process What wasn t so easy for me at first was connecting the S to the Roborock app The vacuum had trouble connecting to my home s WiFi network but I was able to connect it to the Mi Home app which is Xiaomi s main smart home companion app Xiaomi is an investor in Roborock There aren t a ton of differences between the two apps when it comes to robo vac controls but the S is designed to work with Roborock s program After troubleshooting with a Roborock representative I was able to fix the problem by factory resetting the vacuum and that allowed me to connect it to the Roborock app properly That said the Roborock app isn t nearly as polished as those from iRobot Shark and others The main page shows your home s map along with the battery level cleaning time cleaning area in feet and buttons that let you quickly start a cleaning job and empty the dustbin You re also able to select specific rooms or zones to clean but the rest of the control options live in the menu accessible by the three dot icon at the top right corner of the app Things are a little buried and that might make the S harder for robot vacuum newbies to use When it comes to cleaning performance the Roborock S did a great job sucking up dirt around my home In addition to the usual features like cleaning schedules zone targeting and others the vacuum also has things like child lock which will disable the physical buttons on the machine different auto emptying settings to choose from “pin and go which lets you tap on your home map to send the robot to a specific location and manual direction controls so you can move the machine like a toy car This isn t the robot vacuum to get if you want the most polished experience and you may very well want that if you re dropping on one but it remains a powerful vac and mop machine with a handful of extra perks Best budget robot vacuum Roomba iRobot s Roomba is a great option for most people thanks to its good cleaning power and easy to use mobile app We won t get too deep into it here since we have a whole guide to affordable robot vacuums with additional recommendations But suffice to say the gives you all the essentials you d expect from a robot vacuum along with all of the convenience that comes with iRobot s mobile app |
2023-02-21 15:15:20 |
海外科学 |
NYT > Science |
Why PepsiCo’s and Coca-Cola’s Alcohol Drinks Worry Health Experts |
https://www.nytimes.com/2023/02/21/health/alcohol-soft-drinks-health-risk.html
|
markets |
2023-02-21 15:45:24 |
海外科学 |
NYT > Science |
A Fraught New Frontier in Telehealth: Ketamine |
https://www.nytimes.com/2023/02/20/us/ketamine-telemedicine.html
|
A Fraught New Frontier in Telehealth KetamineWith loosened rules around remote prescriptions a psychedelic like drug has become a popular treatment for mental health conditions But a boom in at home use has outpaced evidence of safety |
2023-02-21 15:33:13 |
金融 |
金融庁ホームページ |
「インパクト投資等に関する検討会」(第5回)議事次第を公表しました。 |
https://www.fsa.go.jp/singi/impact/siryou/20230222.html
|
次第 |
2023-02-21 17:00:00 |
金融 |
金融庁ホームページ |
金融安定理事会による「分散型金融の金融安定上のリスク」の公表について掲載しました。 |
https://www.fsa.go.jp/inter/fsf/20230221/20230221.html
|
金融安定理事会 |
2023-02-21 17:00:00 |
ニュース |
BBC News - Home |
Asda and Morrisons limit sales of fruit and vegetables |
https://www.bbc.co.uk/news/business-64718823?at_medium=RSS&at_campaign=KARANGA
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costs |
2023-02-21 15:22:41 |
ニュース |
BBC News - Home |
SNP leadership: Kate Forbes defends gay marriage stance |
https://www.bbc.co.uk/news/uk-scotland-64715944?at_medium=RSS&at_campaign=KARANGA
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backers |
2023-02-21 15:37:15 |
ニュース |
BBC News - Home |
Media watchdog 'extremely concerned' by Bulley complaints |
https://www.bbc.co.uk/news/uk-england-lancashire-64713045?at_medium=RSS&at_campaign=KARANGA
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bulley |
2023-02-21 15:10:32 |
ニュース |
BBC News - Home |
No 10 defends handling of Northern Ireland Protocol talks |
https://www.bbc.co.uk/news/uk-politics-64717754?at_medium=RSS&at_campaign=KARANGA
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ireland |
2023-02-21 15:39:22 |
ニュース |
BBC News - Home |
Pret A Manger to scrap smoothies, frappes and milkshakes |
https://www.bbc.co.uk/news/business-64721251?at_medium=RSS&at_campaign=KARANGA
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frappes |
2023-02-21 15:03:24 |
ニュース |
BBC News - Home |
Neo-Nazi threats probed by anti-terrorism police |
https://www.bbc.co.uk/news/uk-64720973?at_medium=RSS&at_campaign=KARANGA
|
action |
2023-02-21 15:18:30 |
ニュース |
BBC News - Home |
Pilot thought co-pilot who died in cockpit was joking - report |
https://www.bbc.co.uk/news/uk-england-lancashire-64716821?at_medium=RSS&at_campaign=KARANGA
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arrest |
2023-02-21 15:27:58 |
ニュース |
BBC News - Home |
Aston Martin: Felipe Drugovich to replace injured Lance Stroll in pre-season |
https://www.bbc.co.uk/sport/formula1/64722693?at_medium=RSS&at_campaign=KARANGA
|
Aston Martin Felipe Drugovich to replace injured Lance Stroll in pre seasonAston Martin reserve driver Felipe Drugovich will drive on the first day of this week s pre season test in place of injured race driver Lance Stroll |
2023-02-21 15:12:54 |
ニュース |
BBC News - Home |
Leeds United new manager: Javi Gracia named as Jesse Marsch's replacement |
https://www.bbc.co.uk/sport/football/64723160?at_medium=RSS&at_campaign=KARANGA
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jesse |
2023-02-21 15:56:26 |
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