投稿時間:2021-10-07 04:28:08 RSSフィード2021-10-07 04:00 分まとめ(31件)

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AWS	AWS Big Data Blog	Automate your Amazon Redshift performance tuning with automatic table optimization	https://aws.amazon.com/blogs/big-data/automate-your-amazon-redshift-performance-tuning-with-automatic-table-optimization/	Automate your Amazon Redshift performance tuning with automatic table optimizationAmazon Redshift is a cloud data warehouse database that provides fast consistent performance running complex analytical queries on huge datasets scaling into petabytes and even exabytes with Amazon Redshift Spectrum Although Amazon Redshift has excellent query performance out of the box with up to three times better price performance than other cloud data warehouses you …	2021-10-06 18:24:04
AWS	AWS Database Blog	Tune sorting operations in PostgreSQL with work_mem	https://aws.amazon.com/blogs/database/tune-sorting-operations-in-postgresql-with-work_mem/	Tune sorting operations in PostgreSQL with work memSorting is one of the most fundamental operations in databases and optimizing this process is vital to the performance of applications Sorting involves arranging records in a database table into some meaningful order to make it easier to understand analyze and visualize the data For example you might want to sort orders by their delivery …	2021-10-06 18:35:46
AWS	AWS	Astana International Exchange: Running a Stock Exchange in the Cloud	https://www.youtube.com/watch?v=IP03SkGbP-U	Astana International Exchange Running a Stock Exchange in the CloudLearn how AIX hosts their stock exchange applications including the Nasdaq Matching Engine in the AWS cloud AIX runs their workloads across multiple AWS regions and leverages number of data replication techniques As a result they are able to switch their workloads to another region in under minutes Check out more resources for architecting in the AWS​​​cloud AWS AmazonWebServices CloudComputing ThisIsMyArchitecture	2021-10-06 18:17:07
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	ローディングアニメーション	https://teratail.com/questions/363168?rss=all	ローディングアニメーション実現したいことページを開いたらすぐ「ABCDEFG」中央表示→「ABCDEFG」その場でフェードアウト→左から紺色スライドイン全画面→紺が全面埋めたらすぐさま左からオレンジ色スライドイン全画面→トップページ表示サンプルをかき集めてフェードアウト、スライドの途中まではできたものの、ここで行き詰まってしまいました。	2021-10-07 03:49:57
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	eclipseでパッケージの中に新規のパッケージを作成したい	https://teratail.com/questions/363167?rss=all	eclipseでパッケージの中に新規のパッケージを作成したい質問致します。	2021-10-07 03:48:01
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	pytestで自作のモジュールを差し替える方法	https://teratail.com/questions/363166?rss=all	pytestで自作のモジュールを差し替える方法いつもお世話になっております。	2021-10-07 03:38:10
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	各ページにあるメニューから index.html へ遷移後、index 内にある指定のモーダルを開きたいです	https://teratail.com/questions/363165?rss=all	各ページにあるメニューからindexhtmlへ遷移後、index内にある指定のモーダルを開きたいです全ページに共通のメニューがあり、下層ページからでもindexページ遷移後に指定のモーダルを開けるようにしたいです。	2021-10-07 03:34:27
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	selenium自動化におけるクリップボードアクセス許可ダイアログ	https://teratail.com/questions/363164?rss=all	selenium自動化におけるクリップボードアクセス許可ダイアログseleniumpythonで、GooglenbspChromenbspのwebページの検索窓にクリップボードの情報を入力する操作pyperclippasteを実装すると、Chromeの以下メッセージのダイアログが表示されてしまいます。	2021-10-07 03:11:35
Ruby	Rubyタグが付けられた新着投稿 - Qiita	WEBrickを使って動的なhtmlを返す（〜 GETとPOSTの違い 〜）	https://qiita.com/sonoyuki13/items/2f480816493cfec3c620	つまり、フォームのユーザー名の欄に「太郎」、年齢の欄に「」と入力した場合、reqqueryの返り値はusernamegt太郎agegtとなる参考instancemethodWEBrickHTTPServermountproc入力情報をGETで送った場合とPOSTで送った場合の違いGETリクエストの場合フォームのユーザー名の欄に「太郎」、年齢の欄に「」と入力し、『投稿』を押すと、formgetusername太郎ampageに対してGETリクエストを送れる。	2021-10-07 03:16:35
Ruby	Rubyタグが付けられた新着投稿 - Qiita	WEBrickを使って静的なhtmlを返す	https://qiita.com/sonoyuki13/items/3dcfac99b05eca29cc19	WEBrickを使って静的なhtmlを返すWEBrickを使ってHTMLを返すというのを学習したので、アウトプットしようと思います。	2021-10-07 03:05:13
Git	Gitタグが付けられた新着投稿 - Qiita	【Git】fetch・mergeコマンドでリモートの情報をローカルに持ってくる方法！！！	https://qiita.com/shunnami/items/77904e8728726168e689	リモートブランチを追跡するリモート追跡ブランチがあり、リモート追跡ブランチを追跡しているブランチであるmainブランチやgitbranchコマンドで作成したブランチがあるとする。	2021-10-07 03:03:05
海外TECH	Ars Technica	How to upgrade to Windows 11, whether your PC is supported or not	https://arstechnica.com/?p=1800798	windows	2021-10-06 18:28:31
海外TECH	DEV Community	Budgie Console	https://dev.to/yashdatir/budgie-console-e3k	Budgie ConsoleHey guys Here I am publishing my new package It has the capability for changing background foreground and styles of a boring console that we all use It also has built in function for displaying loaders in console with greater controls I don t know how much more can we add to it but yeah its simple yet have no limits to creativity Please checkout Git Repo	2021-10-06 18:51:48
海外TECH	DEV Community	Explore Geopolitical data from GDELT	https://dev.to/sonishreyas/explore-geopolitical-data-from-gdelt-2hnm	Explore Geopolitical data from GDELTIn this blog we will explore the geopolitical data from GDELT and see how that data can be used in the analysis What is GDELT The GDELT Project created by Kalev H Leetaru monitors the world s news from every country in over languages and identifies the people locations organizations themes sources emotions counts quotes images and events driving our global society In this blog we will have a look at the Events database of GDELT and how this data can be used for analysis Event DatabaseThe GDELT Event Database catalog over main categories and more than subcategories Each category is given a particular cameo code We will be looking into the main cameo codes That includesMake Public StatementAppealExpress intent to cooperateConsultEngage in diplomatic cooperationEngage in material cooperationProvide aidYieldInvestigateDemandDisapproveRejectThreatenProtestExhibit military postureReduce relationsCoerceAssaultFightUse unconventional mass violenceLet s see how we can get the data for these events for all countries How to get the data BigQueryYou can query any data you want according to your need Here is an example of a query select SQLDATE EventRootCode ActorCountryCode NumMentions from gdeltv events Using gdelt python packageInstallation pip install gdeltCall the gdelt version database gd gdelt gdelt version Use gd object to search for the data of a given date and set table to events results gd Search table events coverage True Processing the data to get Timeseries data for all countriesLoad the data into the notebook df pd read csv gdelt csv The data output of the gdelt object has all the columns present in the events database Now filter it to the columns necessary i e SQLDATE EventRootCode ActorCountryCode NumMentionsresults results SQLDATE EventRootCode NumMentions ActorCountryCode Convert the SQLDATE format from YYYYMMDD to YYYY MM DD results SQLDATE results SQLDATE apply lambda x pd to datetime str x format Y m d Aggregate the data based on SQLDATE EventRootCode and ActorCountryCode results results groupby SQLDATE EventRootCode ActorCountryCode agg sum reset index Data Analysis and VisualizationMapping a Line Chart of a particular Cameo code for the country over time Example Protest in USA Aggregated to Weekly basis Mapping Top Cameo codes in a country based on the Number of Mentions of the particular cameo code Example Top Trends in USA Last Week Mapping Top Countries in a particular cameo code based on the Number of Mentions of the particular cameo code in the country Example Top Countries in Protest Last Week Plot a choropleth map for a particular cameo code Example Protest Today Technology UsedPythonPandasPlotlyCode LinkCo author ashishsalunkhe	2021-10-06 18:15:11
海外TECH	DEV Community	3 tips from "Atomic habits" that helped me on my journey to becoming a full-stack dev at Microsoft	https://dev.to/comscience/3-tips-from-atomic-habits-that-helped-me-get-a-job-at-microsoft-56ih	tips from quot Atomic habits quot that helped me on my journey to becoming a full stack dev at MicrosoftHey There Hope you are doing well I joined Microsoft as a full stack developer last month and the announcement tweet went viral on Twitter Kapeel Typescript kokaneka Today is my first day at Microsoft as a full stack dev Hope its the start of an amazing journey AM Sep Many of the fellow devs asked me for my journey and what helped me reach there So I thought of putting this article together by listing out a few small habits that added up over time which helped me get the desired result Many of the things that I talk about are mentioned in the amazing book Atomic habits by James Clear which I think every human being must read at least once disclaimer This article is not a place for tips and tricks or a list of important questions to crack any particular interview It was a long amp gradual process for me and I m just listing down what worked for me You can try it out and see if it works for you ️⃣Design your environmentJames talks about the power of environment design over motivation and here s how we can apply that PhonePeople say phones are distracting and toxic I say people do not know how to use phones If used properly it can act as a prime weapon in your arsenal Structure your home screen so that instead of Facebook Instagram you see dev to hashnode daily dev so that when you open your phone the decision is easy for you to scroll some technical content instead of mindless binge scrolling YouTubeMost people under estimate YouTube s capabilities when it comes to learning You can create a separate Google account and only subscribe learning channels through it That way when you switch accounts from the menu bar you get a nicely curated feed of tutorials and tech updates that you might be interested in Here are a few awesome channels Traversy media FreecodecampAcademind TwitterTwitter is also an amazing place to learn and connect with industry experts If you do not have a Twitter account create one today and ONLY follow the accounts that are creating content around the tech that you are interested in That way even if you wanted to binge scroll it will be curated You can also follow accounts specific to a particular language like Javascript ️⃣Create systemsJames also talks about the importance of creating systems rather that setting goals to be successful in the long run Hence instead of trying to rely on motivation which comes and goes try to set up systems Those systems can be something like Set pm to pm as learning time can be any time slot Listen to audio books while taking a walkNever watch television aloneThese systems once established in your mind would make it highly improbable for you not to do the right thing And they also take out decision fatigue For instance if its pm you definitely know that you must be learning stuff right now and hence you do that without thinking much ️⃣Identity based habitsThe third thing that can help you on your journey is this concept of identity based habits How this can help you on your tech journey is instead of trying to build stuff using a new tech stack you can think of becoming a curious developer Instead of studying about algorithms and data structure you can become the sort of person who wonders about how stuff works If you are also on the path of content creation then don t try to create content Become a person who shares knowledge consistently Maybe the examples that I provided are not perfect Go through the article link that I provided and try to come up with your own identity that would help you stick to your habit ConclusionDoing these things would push you in the direction wherein over a long term you will see yourself grow as a developer I did For me cracking the interviews was not just a process for those or months It was an amalgamation of the things that I did over the last years If you are in it for the long run you will definitely succeed And even it you don t there is nothing to loose here Cheers	2021-10-06 18:09:22
海外TECH	DEV Community	First Glance: WSL2 & GoLand on Windows 11	https://dev.to/s0xzwasd/first-glance-wsl2-goland-on-windows-11-26l4	First Glance WSL amp GoLand on Windows Windows was just released a few days ago and GoLand introduces support for projects inside the WSL mount and it is available in the Early Access Program It is a good time to get started and combine things for modern Go development step by step I will show you a small introduction to configure WSL and GoLand how to install Go SDK and open projects inside WSL mounts First off we have to install WSL under Windows There are a few steps to consider Configure WSL on Windows First off we are going to install WSL itself via wsl install in PowerShell with admin rights The operation takes a bit of time and at the end of it you can see the successful message The requested operation is successful Changes will not be effective until the system is rebooted I would say that the process of installing WSL in Windows is much easier than earlier One command does all things After that open Ubuntu distribution or change to a different one using Microsoft article enter username password and install Go SDK Install Go SDK under WSLThere are a few ways to install Go SDK Official guide from Go team Go snap package on Ubuntu I prefer an official guide It is pretty well documented and easy to start Pay attention that it requires sudo privileges for the user wget c O sudo tar xz C usr localA few preparations to use it Specify export PATH PATH usr local go bin under HOME profile Load PATH changes to the current shell session source profile To confirm that Go is configured properly we can execute go version and should get the following output go version go linux amdWe are good to go to the next section Project opening in GoLandLet s create our project right from GoLand On Welcome Screen select New Project and specify project location under WSL mount You can create directories from the pop up by right clicking on the root folder Make sure that the path to the project contains wsl prefix wsl Ubuntu home sxzwasd Projects Go dev to exampleGoLand highlights a warning and requires Go SDK in WSL We can click on the Plus icon and choose Local then find Go SDK wsl Ubuntu usr local go by default Create a project and wait for Go SDK indexing As an example I take Go by Example Interfaces code snippet Let s run it via gutter icons around main function After that try to debug a bit We ve configured all necessary environments to get developer things done LimitationsSo there are several limitations at the moment especially symlinks and File Watchers are not supported IDEA WEB as well as External Tools IDEA and Mozilla RR GITHUB ConclusionWe can use WSL and GoLand for Go development for now It is much easier to get started and separate personal and development environments As a benefit of Windows we can run GUI apps inside WSL and it looks really promising	2021-10-06 18:07:17
海外TECH	DEV Community	Rendering Options on the Web: Server, Client, Static	https://dev.to/thetombomb/rendering-options-on-the-web-server-client-static-20e	Rendering Options on the Web Server Client StaticServer Side Rendering SSR Client Side Rendering CSR and Static Site Generation SSG let s talk about the big three rendering options for the web Descriptions of each SEO considerations and go more deeply into performance indicators and more Choosing the right rendering option for your architecture is important because it s one of the first decisions you make for your web apps and it only gets harder and harder to change the more you build out a project What is Rendering on the web Rendering on the web is the process of transforming website code into the interactive pages that users visit During the rendering process many things could happen such as calling an API loading data from a database executing JavaScript and more In this post I am not too concerned about the details of what is happening but more interested in the Where and When the rendering is happening Are we performing these actions on a server In the visitors browser Or possibly way early at build time before any user has even visited the site Each of these approaches has its benefits and drawbacks and I want to compare them all The Visitors StoryTo help explain web rendering I want to provide the visitors perspective I think it will help us understand the differences between SSR CSR and SSG Johnny wants to visit this site He types in TheTomBomb com into his browsers URL bar and presses the Enter key Now what Well Johnny doesn t want to know how the content he loves gets to the page but he wants an enjoyable experience along the way He wants to get the answers he came for quickly be able to interact with the page consistently and doesn t want unnecessary content popping and shifting around what he is really looking for Web Rendering Performance IndicatorsThroughout this post I will reference several performance indicators Let s dive into those and make sure we are all on the same page for rendering performance measurements I ve broken them up into two sections early indicators and ending indicators The early indicators are things that happen at the very beginning of rendering process while ending indicators happen at the end of the process The Early Performance IndicatorsFirst Contentful Paint FCP What is it The time it takes for the first text or image to be painted on the screenWhy do I care This is the first thing your visitor sees on the page Johnny wants some sign that the page is loading Seeing a blank page is discouraging If things are loading even if it s not the main article or image it reassures the Johnny This metric may not be the most useful as a loading spinner could be the first thing to be painted but a loading indicator is better than a blank screen Time to First Byte TTFB What is it The time it takes between the visitors browser requesting to view a page and when the browser receives its first byte of information Why do I care A high TTFB is a sign of slow load times or slow server A high TTFB may mean that your server has to do a lot of work before it can respond to a request Optimizing TTFB can drastically improve user experience The Ending Performance IndicatorsLargest Contentful Paint LCP What is it The time it takes for the largest image or text block to become visible within the view port The megabytes or kilobytes do not come into consideration here it this is physical screen real estate Why do I care The assumption is that the largest physical piece of content to be rendered to the page will be what the user came to see For example for this blog post you are reading now the text is the largest piece of content and it is indeed what you came for I hope Time to Interactive TTI What is it The time it takes for the page to become FULLY interactive Why do I care This is important because some pages prioritize visuals and will load up a beautiful looking page But when you try to click a link or scroll the page it appears frozen The page looking complete but not interactive is a big disruption in user experience There are definitely more performance indicators out there but FCP TTFB LCP and TTI are what I want to focus in on when compare the different rendering options Server Side Rendering SSR Server side rendering this is where you make the server do the bulk of the work Sometimes referred to as Just In Time JIT rendering With SSR the server receives the request to visit a page and the server generates the HTML for the page The server takes on the responsibility of executing most or all of the JavaScript gathering data from databases calling API s and doing any personalization The server is good at these things because has a fast internet connection have a powerful processor and can render ready to go HTML quickly and send that back down to the page visitor Once the server sends the HTML to the visitors browser the browser may have just a little JavaScript to execute but far less than we ll see in Client Side Rendering This makes SSR very SEO friendly Minimal to no JavaScript has to be executed by the browser and search engine crawlers Many search engine crawlers cannot execute any JavaScript Google can but with mixed results So the less JavaScript required the better for SEO Something to keep in mind though with SSR is that the user sees nothing until the server responds So if there is a lot of data gather or API calls that need to happen there can be quite a delay between the request and Time to First Byte But once the HTML arrives at the browser it is basically ready to go so First Contentful Paint and Time To Interactive are the same or very close together SSR CheatsheetPut the rendering work on the fast powerful serverSEO FCP TTI Mobile friendly because of less loadTTFB Blank screen while server does processing Client Side Rendering CSR Client side rendered applications are websites entirely rendered in the browser with JavaScript With CSR an extremely barebones HTML page is sent over with download links the JavaScript required to render the full page The server sends the building blocks and it is up to the browser to assemble them Because so little data is initially sent CSR can have a quick FCP and TTFB However the browser still has a lot of work to do before useful content is ready to be displayed CSR is very popular and most commonly used with frameworks such as React Angular and Vue The JavaScript that loads starts up these frameworks and they take over from there They handle data fetching routing and more You may have heard of these referred to as SPA or Single Page Applications JavaScript being enabled is essential for CSR to work And it s important to realize downloading JavaScript takes time especially on a mobile data connection JavaScript is great for interactive web pages but requires work up front to download and execute it SEO is also a concern So far only Google web crawlers can execute JavaScript and even then there are mixed results For best SEO results sticking with SSR or SSG is the way to go CSR CheatsheetA minimal HTML file sent to browser containing all information needed to load JavaScript and bootstrap web app FCP TTFB extremely flexible potential costs savings because of lower server requirements SEO dependent on JavaScript being enabled Static Site Generation SSG With Static Site Generation all your HTML gets generated ahead of time during build time SSG sometimes referred to as Ahead of Time AoT rendering is also a major part of Jamstack SSG differs from the previous two rendering options Now during build time before a user even visits any page static HTML files get built This means you do not know who the visitors are going to your pages meaning personalization is not possible without rehydration Rehydration is a topic for another time that I plan on writing about But because all content is static no server is needed outside of the build server that builds the pages All the static content can lives on a Content Delivery Network CDN When a request for a page comes in an immediate response of the static HTML is sent back SSG is great because of the low hosting fees and extremely fast speed But very limiting because all content is created ahead of time Blogs product pages and other content that does not change often are perfect for SSG This blog is completely statically generated SSG CheatsheetGenerate static pages during build time that get directly served to visitors SEO TTFB FCP mobile friendly FAST content deliveryInflexible because we do not have any information on visitors at build time Bringing it all togetherThe big three rendering options SSR CSR and SSG all have their place CSR has become extremely popular with the release of frontend frameworks like React and Angular Pushing the effort of rendering down to the visitors browser is a nice way of eliminating load on the server Many web applications still use SSR where most or all the load is on the server today When SEO and personalization are a concern SSR fills those requirements It may cost more because of the server costs but you ll need to weigh the options on your own SSG is almost in a category of its own because of its ahead of time rendering It checks all the boxes for SEO and performance but you must be prepared for the lack of personalization Rendering your pages during build times means you have no information about who is or will visit your pages Sites like this blog are perfect for SSG because of the mostly static content It s up to you to decide what will work best in your environment If you have come this far you are considering all your options and on your way to making an informed decision	2021-10-06 18:02:02
Apple	AppleInsider - Frontpage News	Apple adds ProRes support, auto-macro toggle in iOS 15.1 beta 3	https://appleinsider.com/articles/21/10/06/apple-adds-prores-support-auto-macro-toggle-in-ios-151-beta-3?utm_medium=rss	Apple adds ProRes support auto macro toggle in iOS beta Apple s latest iOS beta introduces native Camera app support for ProRes video capture on the iPhone Pro and iPhone Pro Max as well as the ability to disable auto macro mode for photos The ProRes support debuted in iOS beta which was released on Wednesday Users running the beta can enable ProRes capture in the Settings app s Camera menu On the iPhone Pro and iPhone Pro Max ProRes can capture video at up to fps in K quality and up to fps in p However iPhone Pro models with GB of storage will be limited to fps in p Read more	2021-10-06 18:44:32
海外科学	NYT > Science	First Malaria Vaccine Approved by W.H.O.	https://www.nytimes.com/2021/10/06/health/malaria-vaccine-who.html	First Malaria Vaccine Approved by W H O Malaria kills about people each year about half of them children in Africa The new vaccine isn t perfect but it will help turn the tide experts said	2021-10-06 18:47:39
ニュース	BBC News - Home	UK gas prices fall from record high after Russia steps in	https://www.bbc.co.uk/news/business-58815665?at_medium=RSS&at_campaign=KARANGA	recent	2021-10-06 18:47:05
ニュース	BBC News - Home	Coronavirus travel advice eased for 32 countries	https://www.bbc.co.uk/news/uk-58822439?at_medium=RSS&at_campaign=KARANGA	advice	2021-10-06 18:18:38
ニュース	BBC News - Home	Why are some footballers vaccine hesitant & what happens next?	https://www.bbc.co.uk/sport/football/58806500?at_medium=RSS&at_campaign=KARANGA	Why are some footballers vaccine hesitant amp what happens next With the Premier League club managers politicians and football authorities all encouraging vaccinations why are some players still hesitant and what can be done	2021-10-06 18:19:50
ビジネス	ダイヤモンド・オンライン - 新着記事	マンション売却、「業者の言いなり」で大損しないために知るべきこと - ビッグデータで解明！「物件選び」の新常識	https://diamond.jp/articles/-/284060	言いなり	2021-10-07 03:55:00
ビジネス	ダイヤモンド・オンライン - 新着記事	低炭素エネへの転換、英国のつまずきに学ぶ - WSJ PickUp	https://diamond.jp/articles/-/284056	wsjpickup	2021-10-07 03:45:00
ビジネス	ダイヤモンド・オンライン - 新着記事	銅相場は再び「1万ドル」視野、中国減速も根強い中長期需要増の期待 - マーケットフォーカス	https://diamond.jp/articles/-/284070	史上最高値	2021-10-07 03:40:00
ビジネス	ダイヤモンド・オンライン - 新着記事	中国がアルゴリズム利用にメス、規制の最先端に - WSJ PickUp	https://diamond.jp/articles/-/284057	wsjpickup	2021-10-07 03:35:00
ビジネス	ダイヤモンド・オンライン - 新着記事	FB内部告発者が議会証言、規制強化の機運高まる - WSJ PickUp	https://diamond.jp/articles/-/284058	wsjpickup	2021-10-07 03:30:00
ビジネス	ダイヤモンド・オンライン - 新着記事	ひろゆきが語る「ファッション感覚でSDGsを語る人の愚かさ」 - 1％の努力	https://diamond.jp/articles/-/283700	youtube	2021-10-07 03:20:00
ビジネス	ダイヤモンド・オンライン - 新着記事	妄想を社会に接続し、ワクワクする未来に変えていく - SFでビジネスが跳ぶ！	https://diamond.jp/articles/-/283728		2021-10-07 03:15:00
ビジネス	ダイヤモンド・オンライン - 新着記事	「転職した方がいい会社」「転職しない方がいい会社」の差 - マンガ転職の思考法	https://diamond.jp/articles/-/277236		2021-10-07 03:10:00
ビジネス	ダイヤモンド・オンライン - 新着記事	自分は変えられるけど 他人は変えられない - 精神科医Tomyが教える　１秒で悩みが吹き飛ぶ言葉	https://diamond.jp/articles/-/280659	しかし、自分自身と未来をより良いものにすることは、自分ができることです。	2021-10-07 03:05:00