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Phys.org internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine.
Updated: 8 weeks 1 day ago

Upper surface of coastal waters can accumulate bacteria and antibiotics, study finds

Fri, 06/14/2024 - 14:00
Antibiotics in the uppermost water surface, known as the sea surface microlayer, can significantly affect the number of bacteria present and contribute to the adaptation of marine bacteria against widely used antibiotics. In new research presented at ASM Microbe, scientists directly assessed the potential effects of antibiotics on bacterial diversity in Jade Bay, Southern North Sea, Germany.
Categories: TemeWire

Genomic insights into the tea gray geometrid's survival strategy

Fri, 06/14/2024 - 13:59
A study has shed light on the genetic makeup of the tea gray geometrid, Ectropis grisescens. Through the re-sequencing of 43 genomes, scientists have mapped out the pest's population structure and its remarkable adaptation to tea crops, offering new avenues for managing this agricultural adversary.
Categories: TemeWire

New study provides first nationwide window on juvenile 'lifer' population

Fri, 06/14/2024 - 13:54
More than 2,900 minors have been given juvenile life-without-parole sentences since the first was meted out in the late 1940s. Now, a new study published in the Journal of Criminal Justice provides the most comprehensive picture to date of this unique subset of incarcerated people across the United States.
Categories: TemeWire

Research highlights potential of photo-driven fin field-effect transistors

Fri, 06/14/2024 - 13:52
Infrared detectors are the core components of infrared detection systems and play an important role in fields such as night vision, remote sensing, and health monitoring. In this context, the utilization of mature silicon technologies to develop miniaturized, highly integrated, and cost-effective infrared detectors becomes a key research direction.
Categories: TemeWire

Enhancement and manipulation of second- and third-harmonic generation based on all-dielectric nonlinear metasurfaces

Fri, 06/14/2024 - 13:50
Nonlinear optics is a branch of optics that deals with the complex nonlinear relationships between the optical response of the medium and the incident light when it interacts with the optical medium. Currently, nonlinear optics has been successfully applied to a variety of fields, such as laser modulation, optical signal processing, and medical imaging.
Categories: TemeWire

Earth from space: The heel of Italy

Fri, 06/14/2024 - 13:49
The Copernicus Sentinel-2 mission takes us over a section of Italy's heel in the southern part of the boot-shaped peninsula.
Categories: TemeWire

Seeing at a distance with multicore fibers: All-optical, ultra-long-distance image acquisition and transmission system

Fri, 06/14/2024 - 13:40
With the exponential growth of data globally, the demand for high-speed acquisition and long-distance transmission of multidimensional data is escalating. Online video surveillance in sectors like industrial manufacturing has significantly boosted productivity while mitigating security risks. Real-time global video calls have revolutionized people's daily lives.
Categories: TemeWire

Improving the ability of phototherapy to stimulate the systemic immune response to cancer

Fri, 06/14/2024 - 13:30
Phototherapy is a safe and effective method for tumor treatment, including photothermal therapy (PTT) and photodynamic therapy (PDT). PTT refers to the use of laser to activate photothermal conversion agents and use high temperature to kill tumor cells, while PDT stimulates photosensitizers to produce reactive oxygen species (ROS) to kill tumor cells.
Categories: TemeWire

Study shows impact of Russian social media campaigns less pronounced than often assumed

Fri, 06/14/2024 - 13:25
Most people do not believe the disinformation spread by Russia about the war in Ukraine, even if they regularly use social media. Instead, the decisive factor in the efficacy of this propaganda is whether a person is fundamentally receptive to conspiracy narratives.
Categories: TemeWire

Report highlights trajectory challenges for women in elite football

Fri, 06/14/2024 - 13:23
A new report commissioned by the Fédération Internationale de Football Association (FIFA) and Fédération Internationale des Associations de Footballeurs Professionnels (FIFPRO), undertaken by Edith Cowan University (ECU), surveyed footballers across 12 countries in six confederations. More than 700 players participated in the survey, with 71.5% classifying themselves as professional, with a further 16.8% classifying themselves as semi-professional.
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Study reveals how invasive submerged macrophytes affect sediment nitrogen cycle under complex environments

Fri, 06/14/2024 - 13:20
Removal of excess nitrogen is a critical step in the ecological restoration of eutrophic lakes. Microbially mediated dissimilatory nitrate reduction processes in lakes represent an important mechanism for nitrogen removal. However, lake ecosystems are facing an increasingly complex and severe threat from invasive submerged macrophytes and microplastic pollution.
Categories: TemeWire

Ultracompact and high-efficiency liquid-crystal-on-silicon light engines for augmented reality glasses

Fri, 06/14/2024 - 13:20
Augmented reality (AR) and virtual reality (VR) are innovative display technologies with the ability to revolutionize the way we interact and experience the world.
Categories: TemeWire

Structured light beams with controllable polarization along arbitrary trajectories

Fri, 06/14/2024 - 13:10
A structured light refers to a light field which is "customized" in both space and time, characterized by its unique distribution of amplitude, phase, and polarization state in both space and time.
Categories: TemeWire

Decoding reactive species in molten salts

Fri, 06/14/2024 - 13:03
By unraveling vibrational signatures and observing ion exchanges, an Oak Ridge National Laboratory team revealed how chemical species form in a highly reactive molten salt mixture of aluminum chloride and potassium chloride. The findings are published in the journal Chemical Science.
Categories: TemeWire

Researchers investigate presence of endangered sea cucumbers for sale in NYC food markets

Fri, 06/14/2024 - 13:03
After surveying food market retailers in three New York City Chinatown districts, Cornell researchers have found genetic evidence that some endangered species of sea cucumbers—considered a pricey but nutritious dried delicacy—are being sold to consumers.
Categories: TemeWire

Q&A: Barrier islands and dunes protect coastlines, but how are environmental changes affecting them and adjacent land?

Fri, 06/14/2024 - 13:01
Barrier islands dot the landscape along Virginia's Eastern Shore, protecting the coastline from direct impacts of storms and sea-level rise. Made of sand, they are created and changed by environmental factors. But with climate change and human development, these natural processes can be disrupted.
Categories: TemeWire