Articles tagged with Telecommunications
Researchers have introduced iso-propagation vortices, offering a solution to increasing information processing capacity while overcoming traditional vortex beam limitations. IPVs exhibit OAM-independent propagation, allowing for consistent beam size during free-space propagation.
Researchers at Harvard University have successfully demonstrated the first metro-area quantum computer network in Boston, using existing telecommunication fiber to send hacker-proof information via photons. The breakthrough overcomes signal loss issues, enabling the creation of a secure quantum internet.
A cohort study found that high levels of telehealth use were associated with more clinician encounters, ambulatory care-sensitive hospitalizations, and higher healthcare costs. COVID-19 cases still remained high during the study period, suggesting that HSAs with higher telehealth intensity may have better capacity for health services.
A new study from UCLA and Duke University reveals that strong local journalism plays a crucial role in supporting funding for dams, sewers, and other basic infrastructure vital to climate resilience. Reading detailed news coverage with specific local details about infrastructure maintenance requirements increases support for spending b...
A new, low-cost, high-efficiency photonic integrated circuit has been developed using lithium tantalate technology. The breakthrough platform offers scalable and cost-effective manufacturing of advanced electro-optical PICs, paving the way for volume manufacturing.
Text messaging and bulk ordering can significantly increase mammogram completion rates for breast cancer screening outreach. The study found that these interventions are effective in improving adherence to recommended screening guidelines.
Researchers have developed a proposed system to control specific devices on a network, allowing for more efficient and secure control. The system uses a broadcast authentication method, which enables remote control of arbitrary target devices simultaneously.
Researchers developed a novel temperature-dependent viscosity mediated strategy to control Bi dopant deactivation during fiber drawing. A borate glass system with faster viscosity changing rate was created, resulting in the first demonstration of on-off gain in a Bi-doped borate fiber system.
For the first time, scientists have created a system that interfaces two key components of quantum networks: quantum information creation and storage. The team used regular optical fibres to transmit quantum data, enabling long-distance communication and paving the way for distributed computing and secure communication.
A telephone-based strategy improved guideline-directed medical therapy rates for outpatients with heart failure by 30 days, offering a low-cost solution for rural settings with limited access to care. This study suggests the potential for expanded remote healthcare initiatives to address health disparities.
The digital twin of a railway wireless network uses scenario modeling, radio wave propagation characterization and integrated operation platforms to improve safety and efficiency. The study introduces key technologies such as ray tracing and AI-based super-resolution to achieve accurate deterministic modeling of wireless channels.
Researchers found that adding a note to play up psychological sense of ownership was more effective at convincing people to get the booster. This approach outperformed lab findings and expert insights, highlighting the importance of reproducibility in behavioral science.
Researchers from Osaka University and IMRA AMERICA have developed a photonics-based wireless link that breaks speed records for data transmission. The system achieved a single-channel transmission rate of 240 gigabits per second using ultra-low phase noise, paving the way for near-instantaneous global communication.
The SLICES research infrastructure, launched by UC3M and IMDEA Networks, provides high-quality experimentation services with emerging technologies like 5G/6G, IoT, NFV, or Cloud Computing. This Spanish node aims to support the scientific community in experimenting with cutting-edge resources.
A new study proposes a data-sharing solution based on distributed fountain coding to improve the reliability of transmission in complex vehicle-connected environments. The proposed method allows receivers to accept encoded packets from different vehicles, reducing decoding failure caused by network anomalies.
Researchers developed a carbon-based tunable metasurface absorber with an ultrawide, tunable bandwidth in the THz range. The absorber boasts high absorption efficiency and insensitivity to polarization angles, paving the way for advanced technological applications.
A new algorithm integrates deep learning and federated learning for accurate channel estimation, outperforming state-of-the-art models in sparse and dense scenarios. The algorithm's use of a user motivation scheme and federated learning framework provides robustness, adaptability, and scalability.
Researchers use water as a nonlinear medium to create a supercontinuum white laser covering an impressive spectral range from UV to far infrared. The resulting ultrabroadband source has potential in ultrafast spectroscopy, hyperspectral imaging, and scientific research.
Multicommunicating can enhance primary tasks and minimize delays when done correctly. Effective management of communication partners' expectations is key to avoiding distractions.
Research found mobile phone users process information faster but are more likely to fall for misinformation compared to personal computers. PC users, however, are more susceptible to phishing attempts, highlighting the importance of device-specific responses.
Researchers at Osaka Metropolitan University fabricated GaN transistors using diamond substrates, achieving more than twice the heat dissipation of SiC-based transistors. This novel technology has the potential to revolutionize power and radio frequency electronics with improved thermal management capabilities.
A team of researchers at Ghent University and imec developed a silicon photonic temperature sensor that measures up to 180°C. The sensor was realized in the framework of the European SEER project, where partners focus on integrating optical sensors in manufacturing routines for composite parts.
A randomized clinical trial found that Mindfulness-Oriented Recovery Enhancement (MORE) plus usual care significantly decreased drug use, pain, and depression in individuals with opioid use disorder and chronic pain. Participants who received MORE also showed increased methadone treatment retention and adherence.
Researchers from NICT and partners demonstrated a record-breaking data-rate of 22.9 petabits per second using a single optical fiber, more than double the previous world record. The achievement showcases the potential for ultra-large capacity optical communication networks.
A new proof-of-concept study demonstrates the use of distributed fiber optic sensing to detect and analyze the sound of periodical cicadas. The technology shows promise for charting the populations of these famously ephemeral bugs, with potential applications in monitoring insect abundance across seasons and years.
A research team at City University of Hong Kong has developed a novel performance evaluation method called Information Exchange Surrogate Approximation (IESA) to calculate blocking probabilities in queueing systems with overflow. IESA provides ways to allocate limited resources better, enhancing resource allocation and capacity plannin...
Scientists at Politecnico di Milano have created photonic chips that can mathematically calculate the ideal shape of light to pass through any environment, increasing transmission capacity. The devices generate multiple overlapping beams with unique shapes, reducing interference and enabling high-bandwidth data transfer
A novel technology to manage demands on mobile networks from multiple users has been developed by University of Leicester computer scientists. The study found a 10% power consumption reduction compared to existing technologies, with faster device selection and less resource allocation.
Researchers developed an AI model to optimize network allocation, saving bandwidth and reducing computational cost. The model can be adapted for various scenarios, including drone battery conservation and remote surgery.
Researchers at NICT developed a novel structure for superconducting strip photon detectors, achieving high performance and polarization independence. The new technology enables the creation of wider strips, increasing productivity and reducing fabrication costs.
The What3Words geocoding algorithm creates potential for confusing different nearby addresses, which could have serious implications in emergency situations. Simulation-based analysis highlights the need for improved spatial reasoning and algorithmic design to mitigate these risks.
Using anonymized smartphone data, researchers found that police spend more time patrolling non-white neighborhoods, with disparities linked to socioeconomic and crime-driven demand for policing. The study reveals a strong correlation between racial composition of a neighborhood and police presence.
A multilevel primary care intervention, including electronic health record reminders and patient outreach, improved timely follow-up of overdue abnormal cancer screening test results for breast, cervical, colorectal, and lung cancer. The intervention was found to be effective in reducing missed screenings.
A cross-sectional study found that most survey respondents who gave birth between June and December 2020 did not use prenatal telehealth. Personal preference for in-person care was the most common reason among those who chose not to use telehealth services.
Utilization and spending on mental health services for children and youths with commercial insurance significantly increased from January 2019 to August 2022. Attention-deficit/hyperactivity disorder, anxiety disorders, and adjustment disorder accounted for most visits and spending across all phases of the study.
The new resonators exhibit a record low UV light loss, enabling the development of miniaturized devices for applications such as spectroscopic sensing, underwater communication, and quantum information processing. The researchers achieved this by combining optimized design and fabrication techniques with amorphous alumina materials.
A report by RMIT University found a significant gap in digital inclusion for First Nations people, with remote communities facing the largest disparities. The study highlights the need to address affordability and accessibility issues to ensure equal digital inclusion by 2026.
A study by researchers at the University of Illinois Urbana-Champaign found that YouTube's recommendation system did not promote anti-vaccine content during the COVID-19 pandemic. The study analyzed over 27,000 video recommendations and found that users were directed to longer, more popular health-related content.
A new NYU Langone Health program trains neurology residents to diagnose neurological ailments using simulated virtual exams. The curriculum includes 'actor-patients' and self-testing, improving residents' comfort levels and interest in teleneurology, a crucial skill for the future of healthcare.
A recent study found that telehealth medication abortion services (tele-MAB) can facilitate access to abortion care for individuals with limited mobility, reducing travel costs and logistics. Additionally, tele-MAB may better meet the needs of those with prior abortion experience due to increased familiarity with the process.
A study of over 4.4 million residents at 15,000 skilled nursing facilities found that telemedicine use was higher than pre-2020 levels and associated with improved access to psychiatry visits. Higher adoption rates were linked to better outcomes for patients in these facilities.
A study outlines challenges and proposed solutions for channel estimation in high-speed railway wireless communication. Researchers explored ways to reduce dimensionality, refine algorithms, and eliminate interference to improve accuracy.
The new tool, SnorCall, analyzes unsolicited calls to shed light on robocall trends and types of scams. It extracted information from over 232,000 robocalls, including phone numbers used in scams, helping regulators and law enforcement take action.
Researchers developed a novel method to measure permittivity 100 times more accurately than before. This technology contributes to efficient development of sensitive radio receivers for radio telescopes and high-frequency materials for next-gen communication networks.
A multimodal prenatal health care model combining in-office and telemedicine visits performed adequately compared with traditional in-office only prenatal health care, supporting its continued use after the pandemic. The study of 151,000 pregnant individuals found similar health outcomes for both models.
Scientists at KTH Royal Institute of Technology created the smallest glass structure by 3D printing with sub-micrometer resolution. The new method eliminates thermal treatment requirements, enabling customized applications in medical machinery, robotics, and telecommunications.
Four state policies associated with increased telehealth access for mental health care in U.S. facilities, but disparities found in counties with higher Black resident populations and Medicaid acceptance. The expansion has improved mental health care accessibility during the pandemic.
Researchers have developed a custom OCT setup that incorporates a vertical cavity surface emitting laser (VCSEL) diode, which could increase access to OCT imaging and help catch eye problems early. The system performed well in imaging the eye of a healthy volunteer and showed potential for use in biometric eye scanner systems.
A new modeling approach using deep neural networks improves channel estimation performance and increases the precision of underwater transmissions. The model facilitates the detection of sparse interference and enhances the denoising of ocean transmissions.
A new algorithm was developed to help guide unmanned aerial vehicles (UAVs) in dense city environments by finding near-optimal positions for the UAVs with guaranteed line-of-sight links. The algorithm achieved over 95% of the performance of exhaustive 3D search schemes, making it a potentially viable option for this technology.
Researchers at the University of Innsbruck have created a fully functioning quantum repeater node, enabling entanglement creation and swapping over 50 kilometers. This breakthrough demonstrates the feasibility of connecting distant cities through secure, high-performance quantum communication networks.
Researchers at UC San Diego have developed a new technique to increase 5G mmWave network accessibility. The 'mmFlexible' system leverages antenna arrays to divide frequency bands into multiple usable beams, reducing lag by 60-150%. This innovation addresses the challenge of efficient data distribution in millimeter wave networks.
Scientists have successfully tracked fin whales using fibre-optic cables in the Norwegian Arctic archipelago of Svalbard. The system, called Distributed Acoustic Sensing (DAS), allows for simultaneous location and tracking of whales over an 1800 km² area with relatively low infrastructure investment.
A pilot study found that remote aerobic walking exercise training improved cognitive processing speed in fully ambulatory persons with MS. The study, which showed high adherence rates, supports the design of a large-scale randomized controlled trial.
Researchers at ICFO have successfully teleported quantum information over 1km using a multiplexed quantum memory. The technique enables fast and reliable quantum communication over long distances, with potential applications in secure telecommunications.
Researchers at Princeton University developed a new device called mmWall that can steer millimeter-wave (mmWave) signals to reach all corners of a large room. The device uses an accordion-like array of panels to reflect and refract radio waves, allowing for efficient beam steering and alignment with transmitters and receivers.
A survey study of 19,000 patients found that self-managed abortion was prevalent before accessing in-clinic care, particularly among those with limited access. The findings suggest a need for increased access to telemedicine and decentralized abortion care models.
Researchers have developed a novel photoelectrochemical ultraviolet photodetector that can detect two types of ultraviolet light using a multilayered nanostructure. The detector's performance can be regulated through light intensity and external bias, enabling easy adaptation to environmental changes.
Researchers at DTU found that conventional materials like silicon cannot prevent backscattering in photonic systems, despite attempts to create topological waveguides. The study suggests that new materials breaking time-reversal symmetry are needed to achieve protection against backscattering.
Researchers found that receipt of opioid use disorder-related telehealth services was associated with reduced risk for fatal drug overdoses. Additionally, medication from opioid treatment programs and buprenorphine in office-based settings also showed a protective effect.