Articles tagged with Telecommunications
Researchers developed efficient metal-free polymeric scintillators for high-resolution X-ray imaging, outperforming conventional anthracene-based scintillators. The polymers exhibit multicolor radioluminescence and high photostability, enabling applications in radiation detection, medical diagnosis, and security inspection.
Researchers from Rice University and Brown University demonstrate a DIY method to hack 6G frequency using office paper, inkjet printer, metallic foil transfer, and laminator. The 'metasurface-in-the-middle' attack can redirect part of a high-frequency transmission between two users, threatening the security of next-gen wireless networks.
A new system, RescueCASTR, equips rescuers with 360-degree body cameras sending video and photos back to a central command post. This allows the commander to track teams, coordinate efforts and get on-the-ground views of wilderness conditions.
Researchers at NYU Tandon are developing novel methods to detect and mitigate hardware Trojans in next-generation wireless systems, as well as exploring analog side channels unique to 5G. The projects aim to make current and future wireless infrastructure more resilient to flaws and hacks.
Researchers aim to overcome physical limitations of telecommunications by creating immediate response regardless of distance. The eTouch project leverages Model-Mediated Teleoperation and Edge Computing to enable haptic feedback perception without noticeable delay.
Research reveals a 23% increase in online incivility among Congresspeople from 2009-2019, with more inflammatory tweets receiving more likes and retweets. Politicians who received reinforcing feedback from likes and retweets subsequently engaged in more uncivil tweeting.
Researchers found that states with telehealth reimbursement parity policies had higher rates of face-to-face and virtual contraceptive appointments during the pandemic. The study suggests that increased access to contraception through telehealth may have contributed to improved reproductive health outcomes.
A new study from Brown University's Policy Lab found that text-message vaccination campaigns work better when sent early, as all state residents ages 16 and up had been eligible for a shot four weeks before the campaign. Despite this, the messages' ineffectiveness was due to poor timing rather than the content.
Researchers analyzed 61 COVID-specific chatbots in 30 countries, finding common uses such as risk assessment, symptom data collection, and appointment scheduling. They also discovered that anonymity of user interactions varies across cultures, affecting the effectiveness of follow-up services.
Researchers from Georgia Tech have developed a novel tile-based approach to construct on-demand, massively scalable arrays of 5G+ enabled smart skins. The study demonstrates the ability to enhance 5G+ technologies while featuring flexible and conformal capabilities.
Researchers found increased telehealth use was associated with reduced no-show rates and narrowed access disparities in pediatric care. The study also highlighted the growth of telehealth across various pediatric subspecialties before and during the COVID-19 pandemic.
Researchers validated at-home visual acuity tests to measure eye health in telehealth settings, improving accessibility and reducing reliance on in-office appointments. The study found that these home tests were comparable to in-office measurements, demonstrating their potential as a reliable tool for remote eye exams.
A collaborative study from the University of Pennsylvania demonstrates topological control capabilities in an acoustic system at technologically relevant frequencies. The researchers have successfully shown that topological phenomena occur at higher frequency ranges, enabling unique signal propagation properties.
A study found that telemedicine and community screening for diabetic retinopathy are highly cost-effective in rural and urban China. The results suggest that adopting telemedicine screening programs at the national primary care level is economically reasonable.
Researchers at the University of Oxford and the University of Pennsylvania have fabricated vibrating nanostrings that resonate at predetermined frequencies. The new approach allows for rapid tuning with higher efficiency, potentially leading to longer-lasting batteries and improved data rates.
An international team of scientists has developed an organic semiconductor that can operate in the 5G frequency range, with a structure featuring ultralow capacitance and resistance. The innovation paves the way for mass manufacturing at low cost using solution processing techniques.
Researchers have demonstrated control of graphene's relaxation time, allowing for novel functionalities in devices such as light detectors and modulators. This work paves the way for the development of ultrafast optical devices with potential applications in photonics and telecommunications.
Researchers at the University of Texas at Austin created a new nanocrystal gel that can be easily tuned to work as an optical filter, controlling heating or cooling dynamically. This versatile material has applications for thermal camouflage in defense and telecommunications.
A study by University of Georgia researchers found that remote learning programs in labs continued to be effective during the pandemic, with students praising quality mentorship and skills development. However, they also reported missing informal interactions and structure.
Researchers found that smartphone app usage patterns can be used to identify individuals with over 30% accuracy. The study analyzed data from 780 people and showed consistent patterns in application usage behaviors on a day-to-day basis. This highlights the potential risks to privacy when using apps automatically collected by smartphones.
A new approach using an array of series-connected solar cells as detectors simplifies underwater optical data links, offering a cost-effective and low-energy way to transmit data underwater. The system demonstrated the highest bandwidth ever achieved for a commercial silicon solar panel-based optical communication system.
Researchers developed a new waveguide to overcome limitations in THz signal transmission and processing. The device allows for unprecedented flexibility towards manipulating THz pulses, enabling complex signal-processing functionalities such as holographic messaging.
Researchers have found a way to modify carbon nanotubes to meet the requirements of novel electronic devices. The team discovered that exposure to plasma or shortening tube lengths leads to a drop in conductivity at low terahertz frequencies, but at high enough frequencies electrons move freely.
Researchers at Penn State developed a computational optimizer to design a 3D unit cell with cube-shaped cavities that enables asymmetric transmission of linearly polarized light across a wide frequency range. The optimized design was successfully fabricated and tested, demonstrating robust optical properties.
Researchers at INRS developed a method to amplify weak optical signals while reducing noise content using the Talbot self-imaging effect. This technique has potential applications in various fields like telecommunications, bioimaging, and remote sensing.
The study examines changes in mental health care and telemedicine use among over 650,000 Medicare patients with severe mental illness during the pandemic. The findings highlight significant disruptions in care, leading to reduced access to essential services.
A study by Michigan Medicine reveals that 25% of young American men experience both delivering and receiving technology-facilitated abuse. Healthcare providers should consider addressing this issue, as men who have mental health care visits are more likely to be involved in abusive relationships.
A study shows that UK government trust, social norms, and privacy concerns play a significant role in the adoption of the NHS Covid-19 app. Initial enthusiasm to adopt the app was higher in urban locations, while people's concern about third-party data access fuelled reluctance to use it.
A recent study by Xuedi Li and colleagues found that excessive screen time was associated with increased symptoms of depression, anxiety, and hyperactivity in children during the COVID-19 pandemic. The research suggests that parents should monitor their child's screen use to mitigate potential mental health effects.
Researchers found that Americans were less likely to respond to an email survey from a person believed to be Black than from a person believed to be white. The study, which analyzed responses from over 250,000 people, suggests that racial bias can influence everyday communication behaviors.
A study of 16,000 patients with new cancer diagnoses found that those from higher socioeconomic backgrounds were more likely to use telemedicine in the months following their diagnosis. Higher socioeconomic groups also showed increased utilization of telemedicine services within 30 days of diagnosis during the COVID-19 pandemic.
In a large commercially insured population, overall outpatient care usage didn't change significantly despite increased telemedicine use. Telemedicine appeared to substitute for in-person visits, suggesting its potential as a convenient alternative.
The PERSEPHONe project aims to create a novel technological platform for photonics based on metal-halide perovskites. Early stage researchers will be trained in materials design, device development and adaptability.
Princeton researchers create a new type of antenna array that can be used in various applications, including coating airplane wings, functioning as a skin patch for medical implants, or covering a room as wallpaper. The technology uses large-area electronics to overcome limitations of conventional silicon semiconductors and enables fle...
A quantum search algorithm, known as Grover Adaptive Search (GAS), has been demonstrated to solve the index selection problem in index modulation faster than a classical computer. This breakthrough could lead to significant energy efficiency gains for wireless networks.
Scientists have developed a new material, black phosphorous, only three atoms thick, which can control light with unprecedented precision. This breakthrough technology has the potential to revolutionize telecommunications and pave the way for Li-Fi, a light-based replacement for Wi-Fi.
Scientists found that amorphous carbon coatings used to protect optical fibers from moisture can break down due to interaction with water molecules. The coating's thickness increases, leading to an irreversible increase in electrical resistance and a decrease in transparency.
There was significant growth in telemedicine use among rural Medicare beneficiaries between 2010 and 2019. The majority of this growth was attributed to care delivered by nurse practitioners and other non-physician clinicians.
The INRS team has developed an intelligent optical chip that uses autonomous learning approaches to generate optical waveforms, paving the way for further advances in telecommunications. The device can autonomously adjust to a user-defined target waveform with strikingly low technical and computational requirements.
A new study published in The Lancet Digital Health found a link between screen time and myopia in children and young adults. High levels of smart device exposure increased the risk of short-sightedness by up to 80%, according to researchers at Anglia Ruskin University.
Mathematical modeling suggests that contact-tracing apps can help achieve herd immunity by identifying individuals with greater exposure to others and targeting them for vaccination. The approach, known as 'hot-spotting,' could reduce the number of vaccine doses needed by up to half.
Researchers at UC San Diego developed a new UWB system that enables precise 3D localization and tracking for applications like VR, sports analytics, and autonomous robots. The system uses low power and achieves latency of just one millisecond.
A new approach to generating quantum-entangled photon pairs uses nonlinear metasurfaces to enhance and tailor photon emissions. The researchers achieved a five-order-of-magnitude increase in the brightness of entangled photons, with a highly configurable platform that can control entanglement and direction.
A new University of Central Florida study found that using deadline-ism messaging in climate change communications increases perceptions of the threat and support for government action. Participants who read articles with deadlines supported more political climate change action than those without deadlines.
Researchers at Technical University of Munich have developed a new machine learning algorithm that can analyze complex markets and their equilibrium strategies. This breakthrough has potential applications in auction theory, wireless spectrum auctions, and more.
A pan-Canadian randomized controlled trial is using digital communication to target common reasons for vaccine hesitancy, including age, language, and education level. Family physicians will receive tailored information to share with patients through email and text message, aiming to improve vaccine uptake.
Researchers successfully detected storm swell events and earthquakes across a nine-month observation period using the Curie cable's telecommunications data. The approach transforms the ocean's fiber optic network into a continuous, real-time earthquake and tsunami monitoring system.
Researchers developed a 5G indoor DAS technology that can receive millimeter wave-based broadband signals and transmit them into buildings. The technology significantly improves transmission capacity, equipment size, and deployment cost compared to conventional systems.
Korean researchers from ETRI win first and second places in the Challenge on Learned Image Compression (CLIC) with innovative AI-based video compression techniques. The team aims to optimize video compression rate and quality using multiple source technologies.
Researchers at Ben-Gurion University and National University of Singapore have developed a new method to detect connected, vulnerable IoT devices before they are compromised. This enables telcos to take preventive actions quickly and prevent massive DDoS attacks from hitting their infrastructure.
ETRI successfully developed eco-friendly color CIGS thin-film solar cells with high conversion efficiency and low material costs. The innovative technology features a Zn-based buffer layer, eliminating toxic cadmium, and enables flexible substrate applications.
Researchers at Skoltech and MIPT predicted and experimentally confirmed the existence of exotic hexagonal NaCl thin films on a diamond surface. The films may be useful as gate dielectrics for field-effect transistors in electric vehicles and telecommunication equipment.
A new standard for machine learning in telecommunications networks has been approved, enabling faster data transmission rates of up to 20 Gbps and reducing latency to less than 5ms. This breakthrough is made possible by the application of deep learning techniques, allowing for complex pattern recognition and network load management.
Researchers at ETRI developed a 400-Gbps transmitting/receiving optical engine that can provide stable and improved data transfer speeds for data centers. The technology enables real-time high-definition video streaming for 100,000 viewers simultaneously.
Researchers at ETRI have developed a compact 200Gbps optical transceiver that can send and receive twice as much data as conventional methods. This new technology is expected to contribute to solving data traffic congestion in 5G networks and provides a cost-effective alternative to existing coherent modulation technologies.
French labor unions played a crucial role in protecting workers' mental health during the 2007 restructuring at France Telecom. The unions' efforts led to a landmark court decision holding the company and top executives accountable for
Novel optical elements enable multiplication and division of orbital angular momentum (OAM) of light, offering a promising solution to increase information capacity of optical networks. The research results have been published in Light: Science and Applications.
The NASA-developed Photonic Integrated Circuit Tuned for Reconnaissance and Exploration (PICTURE) instrument will utilize telecommunications-inspired technologies to create a smaller, more capable spectrometer. This device aims to gather unprecedented details about extraterrestrial planets, moons, comets, and asteroids.
A European research project, 5Growth, will test nine 5G use cases in four vertical industry settings in Spain, Italy, and Portugal. The pilot tests aim to validate the performance of 5G systems for Industry 4.0, eHealth, and audiovisual entertainment applications.
A joint team of Chinese scientists has demonstrated CV-QKD transmission over commercial deployed fiber links with distances of up to 50 kilometers. The system achieved higher secret key rates compared to previous laboratory tests, overcoming challenges such as environmental perturbations and equipment losses.