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Tiny defects deliver big gains: Controlling oxygen vacancies boosts thermoelectric efficiency by 91%

A research team has dramatically enhanced the efficiency of converting heat into electricity. The key lies in controlling tiny defects known as oxygen vacancies.

Their findings were published as a front cover article in the journal Advanced Science. The team was led by Professor Hyungyu Jin and Dr. Min Young Kim from the Department of Mechanical Engineering at POSTECH, in collaboration with Professors Donghwa Lee and Si-Young Choi from the Department of Materials Science and Engineering, and Professor Joseph P. Heremans from the Ohio State University.

Each day, enormous amounts of heat are lost around us: hot steam from factory chimneys, heat from car engines, and even the warmth generated by smartphones and computers. This is typically left unused, but if it could be converted back into electricity, it would offer a powerful solution to both energy inefficiency and environmental challenges.

Revolutionary Cortisol Test Lets You “See” Stress With a Smartphone Camera

A protein-based biosensor measures cortisol with high accuracy. Smartphone compatibility makes stress testing more accessible. Cortisol plays a key role in regulating essential body functions such as blood pressure and metabolism, and disruptions in this stress hormone can contribute to a variety

New Sni5Gect Attack Crashes Phones and Downgrades 5G to 4G without Rogue Base Station

“As opposed to using a rogue base station, which limits the practicality of many 5G attacks, SNI5GECT acts as a third-party in the communication, silently sniffs messages, and tracks the protocol state by decoding the sniffed messages during the UE attach procedure,” the researchers said. “The state information is then used to inject a targeted attack payload in downlink communication.”

The findings build upon a prior study from ASSET in late 2023 that led to the discovery of 14 flaws in the firmware implementation of 5G mobile network modems from MediaTek and Qualcomm, collectively dubbed 5Ghoul, that could be exploited to launch attacks to drop connections, freeze the connection that involves manual reboot, or downgrade the 5G connectivity to 4G.

The Sni5Gect attacks are designed to passively sniff messages during the initial connection process, decode the message content in real-time, and then leverage the decoded message content to inject targeted attack payloads.

Google to verify all Android devs to block malware on Google Play

Google is introducing a new defense for Android called ‘Developer Verification’ to block malware installations from sideloaded apps sourced from outside the official Google Play app store.

For apps on Google Play, there was already a requirement for publishers to provide a D-U-N-S (Data Universal Numbering System) number, introduced on August 31, 2023.

Google says this has had a notable effect in reducing malware on the platform. However, the system didn’t apply to the vast developer ecosystem outside the app store.

Nevada closes state offices as cyberattack disrupts IT systems

Nevada remains two days into a cyberattack that began early Sunday, disrupting government websites, phone systems, and online platforms, and forcing all state offices to close on Monday.

The impact of the attack was first felt on Sunday morning, with the Governor’s Technology Office stating that a ‘network issue’ began around 1:52 AM PT, affecting the state’s IT systems.

The Governor’s Technology Office warned that websites, online services, and phone lines could be slow or unavailable as teams worked to restore service.

Meta’s new ultra-thin flat-panel display could change the future of screens

Meta has developed a new flat ultra-thin panel laser display that could lead to lighter, more immersive augmented reality (AR) glasses and improve the picture quality of smartphones, tablets and televisions. The new display is only two millimeters thick and produces bright, high-resolution images.

Flat-panel displays, particularly those illuminated by LEDs, are ubiquitous, seen in everything from smartphones and televisions to laptops and computer monitors. But no matter how good the current technology is, the search for better is always ongoing. Lasers promise superior brightness and the possibility of making the technology smaller and more energy efficient by replacing bulky and power-hungry components with compact -based ones.

However, current laser displays still need large, complex optical systems to shine light onto screens. Previous attempts at making flat-panel laser displays have come up short as they required complex setups or were too difficult to manufacture in large quantities.

Elon Musk Just DROPPED a Wave of Tesla Announcements

Questions to inspire discussion.

🚕 Q: How is Tesla’s robo taxi service progressing? A: Tesla’s robo taxi service is already larger than competitors in Austin and the Bay Area, with plans for significant expansion.

Business Model Shifts.

📊 Q: How might Tesla’s business model change with autonomy? A: Tesla may shift to manufacturing cars primarily for their own robo taxi service, rather than selling to individual customers.

🚛 Q: What potential does Tesla see in autonomous semi trucks? A: Tesla believes autonomous semi trucks could unlock trillions in value and shift supply chains from rail to trucking.

📅 Q: How is Tesla’s leasing strategy evolving? A: Tesla is focusing more on shorter leases (1−2 years) and inventory car leases, indicating a move towards a leasing and subscription model.

Introducing Instant AI

I had a concept for a new product, AI as a prepaid product. But I was unsure if it would be of interest to the industry that has been focused on the distribution of wireless, gift cards, and related products such as mobile handsets and accessories.

Long story short in the 90’s I was the marketing lead for a prepaid phone card startup. I was a part of the industry for almost a decade, I wrote for articles for the industry publications and was well known for building the phone card company through guerrilla marketing techniques, and developing one of the first electronic distribution systems for prepaid products and services. But I had kind of moved on to fintech and now AI.

So I wanted to test the waters before going crazy and marketing the product.

So I printed some marketing collateral, bought myself a razzle-dazzle new shirt, packed a bag and headed off to Caesars Palace, as I had previously done for so many years. I wanted to share my creation which I had kept in stealth mode until unveiling it at the show. I wanted it to be a complete surprise with no one knowing anything …

(https://open.substack.com/pub/remunerationlabs/p/introducing…Share=true)


I took my new Instant AI product to the prepaid industry to determine if it was there was a product market fit for this new concept I’ve created — And… they loved it!

Foxconn: Hon Hai Precision Industry Co., Ltd

(鴻海精密工業股份有限公司), doing business as Hon Hai Technology Group (鴻海科技集團) in Taiwan, Foxconn Technology Group (富士康科技集团) in China, and (富士康) internationally, is a Taiwanese multinational electronics contract manufacturer established in 1974 with headquarters in Tucheng District, New Taipei City, Taiwan. In 2023, the company’s annual revenue reached 6.16 trillion New Taiwan dollars (US$ 192,377,640,000 (equivalent to $198,533,892,569 in 2024)) and was ranked 20th in the 2023 Fortune Global 500. It is the world’s largest contract manufacturer of electronics. [ 3 ] While headquartered in Taiwan, the company earns the majority of its revenue from assets in China and is one of the largest employers worldwide. [ 4 ] [ 5 ] Terry Gou is the company founder and former chairman.

Foxconn manufactures electronic products for major American, Canadian, Chinese, Finnish, and Japanese companies. Notable products manufactured by include the BlackBerry, [ 6 ] iPad, [ 7 ] iPhone, iPod, [ 8 ] Kindle, [ 9 ] all Nintendo gaming systems since the GameCube, Nintendo DS models, Sega models, Nokia devices, Cisco products, Sony devices (including most PlayStation gaming consoles), Google Pixel devices, Xiaomi devices, every successor to Microsoft’s Xbox console, [ 10 ] and several CPU sockets, including the TR4 CPU socket on some motherboards. As of 2012, factories manufactured an estimated 40% of all consumer electronics sold worldwide. [ 11 ]

Foxconn named Young Liu its new chairman after the retirement of founder Terry Gou, effective on 1 July 2019. Young Liu was the special assistant to former chairman Terry Gou and the head of business group S (semiconductor). Analysts said the handover signals the company’s future direction, underscoring the importance of semiconductors, together with technologies like artificial intelligence, robotics, and autonomous driving, after’s traditional major business of smartphone assembly has matured. [ 12 ].

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