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15816481 feed

Slashdot: Zuckerberg's Metaverse Rush Pauses For 'Quality Lockdown'

フィード by slashdotorg-feed
A year after Meta announced its metaverse push, it has yet to demonstrate that its $10bn a year bet on an immersive virtual world will be a success. From a report: According to memos and conversations with 10 current and former employees, his 3bn user-strong social media empire is experiencing disruption and challenges as part of the pivot to Meta, and has already been forced to delay future launches and adjust expectations. In a September memo seen by the Financial Times, Vishal Shah, the vice-president of Meta's metaverse arm, warned that users and creators had complained that Horizon Worlds -- its social virtual reality experience and the closest thing it has to a metaverse so far -- was low quality and full of bugs. He ordered a "quality lockdown" for the rest of the year, telling staff that they need to improve fundamentals before any aggressive expansion. Staffers working on the product had to "reprioritise or slow some things we had planned," said Shah, adding that he was lowering its user numbers target for the second half of the year. Some employees warned morale was suffering as teams got restructured to accommodate Zuckerberg's new vision, which many have not yet bought into. "There are a lot of people internally who have never put on a [virtual reality] headset," said one metaverse employee.

Read more of this story at Slashdot.


情報元へのリンク
15816464 feed

Slashdot: Michigan is Becoming the Center of US Battery Manufacturing

フィード by slashdotorg-feed
Michigan, long the automotive manufacturing capital of the United States, is now getting pumped with investment both publicly and privately to build out a series of battery manufacturing plants that will power the wave of electric vehicles coming to market. From a report: The demand for domestically produced batteries has reached new peaks after the passage of the Inflation Reduction Act (IRA), which includes consumer tax incentives for buying EVs with battery material produced in the United States. Battery makers are rushing to grab available land and start production on factories to meet that demand, shore up their own supply chains and qualify for incentives laid out in the IRA. Battery factory announcements and automaker-cell manufacturer joint ventures have become commonplace in 2021 and 2022 -- particularly in Michigan, Tennessee and other Southeastern states. And they don't appear to be slowing down. Michigan gained two more projects this week. Chinese battery maker Gotion announced a $2.36 billion investment to build a battery component facility in Big Rapids that promises 2,350 jobs. The state of Michigan also saw a $1.6 billion investment from Our Next Energy (ONE), an electric car battery startup helmed by former leaders of Apple's secretive car project, to build a battery factory in Van Buren Township that aims to create enough cells for about 200,000 EVs annually.

Read more of this story at Slashdot.


情報元へのリンク
15816450 journal
日記

LARTHの日記: 自動車保険更新ドライブレコーダー付

日記 by LARTH

ドライブレコーダーがへたってきたので更新の際にドライブレコーダー付きにしてみた。プラス1万円ぐらいかかるけどGPS やら LTE 通信やら緊急連絡(IP 電話の類かな?)付いてて運転の実績で保険料が安くなるやつ。

運転診断機能がついてるせいか設置が結構面倒くさい。水平でそれなりに広く消失点がわかりやすい所でなきゃ設置できないってのがなぁ。
やたらと車線逸脱警告が出て非常に鬱陶しい。これは60km/未満の時には反応しないように設定して回避。後接近警告が隣の車線にちょくちょく反応している。なんか設置に失敗したか設定に失敗したかかなと思ったけどもおかしなところは見つからない。これはサポート案件かな。

運転評価はBが多くたまにA。短距離、狭い路地、凸凹道を行くと評価が渋くなる傾向があるようだ。詳細(アクセル、ブレーキ、ハンドル)に一つでもAがある又は全部BでもぎりぎりAに達しないだと総合評価Aという感じ。
9月分の採点結果は92点でRANK S,Excellent。なんだBでも良かったんだ。

15816442 submission
ワーム

ハチノスツヅリガの幼虫の唾液にポリエチレンを分解する酵素

タレコミ by headless
headless 曰く、
ポリエチレン (PE) の酸化と解重合を可能にする酵素がハチノスツヅリガの幼虫の唾液から発見された (論文マルガリータサラス生物学研究センターのプレスリリースThe Register の記事)。

研究を率いた Federica Bertocchini 氏は趣味の養蜂家でもあり、蜜蝋を食べる養蜂の害虫であるハチノスツヅリガの幼虫 (以降、幼虫) を捕まえてPE製の袋に入れておいたところ、袋に穴をあけて逃げ出してしまったことが研究のきっかけとなった。

Bertocchini 氏の研究グループは幼虫が PE を食べて生分解できるという研究成果を 2017 年に発表しており、2020 年には別の研究グループが幼虫の腸内細菌叢とのかかわりを示唆する研究成果を発表している。

微生物による PE の生分解は非常に長い時間を要するだけでなく、紫外線照射や加熱といった非生物的な事前の酸化処理が必要となる。一方、幼虫による PE 分解は短時間で事前処理を必要としないため、腸内細菌のみでは実現できないと考えられていたが、酵素のかかわりについては明らかになっていなかった。

研究グループでは幼虫の唾液を電子顕微鏡で調査し、2 種類のフェノール酸化酵素「Demetra」と「Ceres」を特定。いずれの酵素も PE を酸化する働きを示すが、Demetra の働きは特に強く、PE 表面に肉眼で見える痕跡(小さなクレーター)を作る。

事前の非生物的処理を要せず、常温かつ中性の水溶液内で数時間以内に PE を分解できる酵素の存在は、研究者が知る範囲で初めて報告されるものだという。ただし、これらの酵素が PE を分解する仕組みを徹底的に理解するには、さらなる構造的・生化学的・機能的な研究が必要とのことだ。
15816445 feed

Slashdot: Game Firm 2K Says Users Info Stolen

フィード by slashdotorg-feed
Game company 2K has warned users to remain on the lookout for suspicious activity across their accounts following a breach last month that allowed a threat actor to obtain email addresses, names, and other sensitive information provided to 2K's support team. From a report: The breach occurred on September 19, when the threat actor illegally obtained system credentials belonging to a vendor 2K uses to run its help desk platform. 2K warned users a day later that the threat actor used unauthorized access to send some users emails that contained malicious links. The company warned users not to open any emails sent by its online support address or click on any links in them. If users already clicked on links, 2K urged them to change all passwords stored in their browsers. On Thursday, after an outside party completed a forensic investigation, 2K sent an unknown number of users an email warning them that the threat actor was able to obtain some of the personal information they supplied to help desk personnel.

Read more of this story at Slashdot.


情報元へのリンク
15816418 feed

Slashdot: Amazon Abandons Home Delivery Robot Tests in Latest Cost Cuts

フィード by slashdotorg-feed
Amazon is shutting down tests of its home delivery robot, the latest sign that the e-commerce giant is starting to wind down experimental projects amid slowing sales growth. From a report: Work on Scout, an autonomous machine launched about three years ago, has already been halted, according to a person familiar with the situation. Amazon spokesperson Alisa Carroll said the Scout team was being disbanded and would be offered new jobs in the organization. About 400 people were working on the project globally, according to the person, who requested anonymity to discuss a private matter. A skeleton crew will continue to consider the idea of an autonomous robot, but the current iteration isn't working. [...] The Seattle-based company began testing the cooler-sized bots on suburban sidewalks outside Seattle in 2019, before expanding the trials to Southern California, Georgia and Tennessee. The slow-moving devices, accompanied by human minders during tests, were designed to stop at a front door and pop open their lids so a customer could pick up a package. Amazon said the battery-powered robots were part of an effort to reduce greenhouse gas emissions in its delivery operations.

Read more of this story at Slashdot.


情報元へのリンク
15816400 feed

Slashdot: Binance-linked Blockchain Hit By $570 Million Crypto Hack, Binance Says

フィード by slashdotorg-feed
A blockchain linked to Binance, the world's largest crypto exchange, has been hit by a $570 million hack, a Binance spokesperson said on Friday, the latest in a series of hacks to hit the crypto sector this year. From a report: Binance CEO Changpeng Zhao said in a tweet that tokens were stolen from a blockchain "bridge" used in the BNB Chain, which was known as Binance Smart Chain until February. Blockchain bridges are tools used to transfer cryptocurrencies between different applications. Zhao said the hackers stole around $100 million worth of crypto. BNB Chain later said in a blog post that a total of 2 million of the cryptocurrency BNB - worth around $570 million - was withdrawn by the hacker.

Read more of this story at Slashdot.


情報元へのリンク
15816373 feed

Slashdot: Americans Are Less Likely To Cancel Amazon, Prime Netflix Than Cut Spending On F

フィード by slashdotorg-feed
An anonymous reader quotes a report from CNBC: Even as Americans cut back in the face of rising prices and recessionary fears, fewer want to give up their streaming subscriptions, especially when it comes to TV, movies and music services, such as Amazon Prime, Netflix and Spotify. Roughly two-thirds of consumers said they will have to decrease their spending due to inflation; however, only about a quarter plan to cancel such subscriptions in the months ahead, according to a recent report by the National Research Group. Most people said they were more likely to cut back on dining out, groceries and clothing. Consumers are least likely to cancel Amazon Prime, TV and movie streaming services and home security systems, the report found, even over food and gasoline. Just over half, or 51%, also said subscriptions now make up a "significant" portion of their monthly spending. On average, U.S. consumers estimate they spend $135 a month and 17.8% of their monthly budget on subscriptions, the National Research Group found. The report polled more than 2,500 adults in August.

Read more of this story at Slashdot.


情報元へのリンク
15815472 submission
書籍

2022 年ノーベル文学賞はフランスの作家アニー・エルノー氏が受賞

タレコミ by headless
headless 曰く、
2022 年のノーベル文学賞はフランスの作家、アニー・エルノー氏が受賞した。授賞理由は個人的な記憶の根底や疎外、集団的な拘束を明らかにする勇気と論理的な鋭さ (プレスリリースバイオビブリオグラフィー)。

エルノー氏は 1940 年生まれ。1974 年に自伝小説「Les armoires vides」でデビューした。ノルマンディー地方のイヴトで育った彼女を取り巻く状況は貧しくも野心的であり、彼女の作品では一貫してジェンダーや言語、階級による強い格差に特徴付けられた生活をさまざまな角度から探求している。彼女は自身をフィクション作家ではなく自分自身の研究者と位置付け、過去の再構築を試みる一方で日記形式の作品も著している。

過去に複数の邦訳作品が出版されているが、ノーベル文学賞発表時点で刊行されているのは「シンプルな情熱」のみのようだ。この作品は 2020 年に映画化されており、日本では 2021 年に劇場公開されている。
15815490 feed

Slashdot: AI Eye Checks Can Predict Heart Disease Risk In Less Than Minute, Finds Study

フィード by slashdotorg-feed
An anonymous reader quotes a report from the Guardian: An artificial intelligence tool that scans eyes can accurately predict a person's risk of heart disease in less than a minute, researchers say. [...] Researchers developed a fully automated AI-enabled tool, Quartz, to assess the potential of retinal vasculature imaging -- plus known risk factors -- to predict vascular health and death. They used the tool to scan images from 88,052 UK Biobank participants aged 40 to 69. The researchers looked specifically at the width, vessel area and degree of curviness of the arteries and veins in the retina to develop prediction models for stroke, heart attack and death from circulatory disease. They subsequently applied the models to the retinal images of 7,411 participants, aged 48 to 92, of the European prospective investigation into cancer (Epic)-Norfolk study. The performance of Quartz was compared with the widely used Framingham risk scores framework. Everyone's health was tracked for an average of seven to nine years. In men, the width, curviness and width variation of veins and arteries in their retinas were found to be important predictors of death from circulatory disease. In women, artery area and width and vein curviness and width variation contributed to risk prediction. The AI tool harnessed data from participants including any history of smoking, drugs to treat high blood pressure, and previous heart attacks. Researchers found the retina data computed by Quartz was significantly associated with cardiovascular disease, deaths and strokes, with similar predictive performance to the Framingham clinical risk score. Their findings were published in the British Journal of Ophthalmology.

Read more of this story at Slashdot.


情報元へのリンク
15815470 submission
携帯通信

総務省、5Gの電波オークション導入に向けて意見を募集

タレコミ by nagazou
nagazou 曰く、
総務省は、5G時代の新たな携帯電話用の周波数割り当ての方針についてパブリックコメントの募集を開始した。政府ではミリ波帯や転用周波数における「電波オークション」の導入を検討しているという。コメントは10月31日まで受け付ける。総務省で開かれた「新たな携帯電話用周波数の割当方式に関する検討会」では、5G時代には多様なニーズが想定されるとしており、5G用として新たに割り当てが想定される高い周波数帯について、現在の審査による方式と併用する形でオークションの導入に向けた制度設計を始めるべきだとする提示がされたとしている(総務省ケータイ WatchNHK)。
15815453 journal
交通

maiaの日記: BEVは軽がイケてる、それとSCiBの威力 5

日記 by maia

元祖 軽EV『i-MiEV』の根強い人気の理由を探る

・セカンドカーならいける
・繰り返し使用に強くほとんど劣化しない電池(東芝SCiB)
・エネルギー密度を改善した次世代SCiBの開発が2023年(来年!)の量産を目指し

15815043 journal
日記

TarZの日記: 強化学習による高速な行列乗算アルゴリズム発見 1

日記 by TarZ

Discovering faster matrix multiplication algorithms with reinforcement learning
解説 Artificial intelligence finds faster algorithms for multiplying matrices

AlphaTensorが、これまでに人間が考案した最高の行列乗算アルゴリズムよりも高速なアルゴリズムを発見(50年ぶり改善)。

そろそろクライアントからの曖昧な要件から、自動でシステム開発くらいまで機械がやってくれるんじゃないの。

typodupeerror

コンピュータは旧約聖書の神に似ている、規則は多く、慈悲は無い -- Joseph Campbell

読み込み中...