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Science News Archive 2015 - Page 345


Page 345 of 402

Shake it off? Not so easy for people with depression, new brain research suggests

A new study found that people with depression release less of a natural pain and stress-reducing chemical called natural opioids when rejected, prolonging the pain of social rejection. In contrast, they experience relatively better feelings when someone they're interested in likes them back, but only momentarily.

SourceMichigan Medicine - University of Michigan·JournalMolecular Psychiatry·DateFeb 27, 2015
Apple iPhone 17 Pro

Apple iPhone 17 Pro delivers top performance and advanced cameras for field documentation, data collection, and secure research communications.

Untangling DNA with a droplet of water, a pipet and a polymer

Researchers at KU Leuven developed a simple and effective way to untangle DNA using a 'rolling droplet' technique. The method involves injecting genetic material into a droplet of water and dragging it over a glass plate covered with a sticky polymer, resulting in longer and straighter DNA strands that can be studied under a microscope.

SourceKU Leuven·JournalACS Nano·DateFeb 27, 2015

Neurons controlling appetite made from skin cells

Columbia University researchers successfully converted human skin cells into hypothalamic neurons, a type that regulates appetite. These neurons provide a patient-specific model for studying the neurophysiology of weight control and testing potential therapies.

SourceColumbia University Irving Medical Center·JournalJournal of Clinical Investigation·DateFeb 27, 2015
SAMSUNG T9 Portable SSD 2TB

SAMSUNG T9 Portable SSD 2TB transfers large imagery and model outputs quickly between field laptops, lab workstations, and secure archives.

UT Arlington study shows employees become angry when receiving after-hours email, texts

A new UT Arlington study finds that employees who receive electronic correspondence from work after hours become angry more often than not, interfering with their personal lives. The researchers identified two categories of workers: segmentors who separate work and personal life, and integrators who want to stay connected with work.

SourceUniversity of Texas at Arlington·JournalAcademy of Management Journal·DateFeb 27, 2015

Researchers detail reasons for ibrutinib therapy discontinuation in CLL

A study published in JAMA Oncology found that 10% of CLL patients discontinued ibrutinib therapy due to disease progression. Patients who experienced Richter's transformation or progressive CLL had poorer outcomes and required alternative therapy quickly after discontinuation.

SourceOhio State University Wexner Medical Center·JournalJAMA Oncology·DateFeb 27, 2015

Breakthrough in understanding how cancer cells metastasize

Researchers at the Montreal Neurological Institute and Hospital have discovered a new mechanism driving cancer cell metastasis, focusing attention on the biological role of DENND2B protein. The study highlights Rab13 as an enzyme promoting cell migration in cancer cells.

SourceMcGill University·JournalJournal of Cell Biology·DateFeb 27, 2015

New filter could advance terahertz data transmission

University of Utah engineers create a filter for separating different frequencies in the terahertz spectrum, a key step towards utilizing this bandwidth for commercial use. The filter can be fabricated using an off-the-shelf inkjet printer and has the potential to boost data transmission rates by thousands of times.

SourceUniversity of Utah·JournalOptica·DateFeb 27, 2015
Apple iPad Pro 11-inch (M4)

Apple iPad Pro 11-inch (M4) runs demanding GIS, imaging, and annotation workflows on the go for surveys, briefings, and lab notebooks.

Predicting human crowds with statistical physics

Scientists developed a mathematical law for pedestrian interactions based on time until collision, revealing consistent patterns in crowd behavior. The model can be used to predict potential dangers in sporting events and festivals, as well as improve public space design.

SourceAmerican Physical Society·DateFeb 27, 2015

Enhancing studies on a possible blood biomarker for traumatic brain injury

Researchers are advancing blood biomarker capabilities using the Simoa technology, which offers unprecedented improvement in sensitivity proteins for detecting traumatic brain injury. The technology allows for more effective measurement of low concentrations of proteins such as tau, enabling more accurate diagnosis and treatment.

SourceNYU Langone Health / NYU Grossman School of Medicine·DateFeb 27, 2015
GQ GMC-500Plus Geiger Counter

GQ GMC-500Plus Geiger Counter logs beta, gamma, and X-ray levels for environmental monitoring, training labs, and safety demonstrations.

Crohn's disease not exempt from racial disparities

A recent study published in the IBD Journal found significant racial disparities in the treatment and outcomes of children with Crohn's disease. Black children had a 1.5 times higher frequency of hospital readmissions due to Crohn's disease compared to white children.

SourceNationwide Children's Hospital·DateFeb 27, 2015

Personality and place: New insights on person-environment links

Research reveals spatial clusters of personality traits within cities, states, and countries, with associations between life satisfaction, terrain preference, and self-esteem. Studies also explore the role of geography in shaping individual behavior and well-being.

SourceSociety for Personality and Social Psychology·DateFeb 27, 2015
Apple MacBook Pro 14-inch (M4 Pro)

Apple MacBook Pro 14-inch (M4 Pro) powers local ML workloads, large datasets, and multi-display analysis for field and lab teams.

HIV controls its activity independent of host cells

Scientists at the Gladstone Institutes found that HIV remains active as infected cells transition to rest, controlled by the virus's Tat protein. This independent control allows the virus to survive even if host cells are inactive, making it harder to cure the infection.

SourceNIH/National Institute of Allergy and Infectious Diseases·JournalCell·DateFeb 27, 2015

Suicide rates rising for older US adults

Suicide rates among US adults aged 40-64 have increased by 40% since 1999, with a sharp rise since 2007. Economic factors such as job loss, bankruptcy, and foreclosure are being identified as contributing to this trend.

SourceElsevier Health Sciences·JournalAmerican Journal of Preventive Medicine·DateFeb 27, 2015
Creality K1 Max 3D Printer

Creality K1 Max 3D Printer rapidly prototypes brackets, adapters, and fixtures for instruments and classroom demonstrations at large build volume.

Synthetic biology breakthrough leads to cheaper statin production

Researchers at the University of Manchester and DSM have developed a single-step method for producing pravastatin, a widely used cholesterol-lowering drug. This breakthrough reduces the cost and complexity of statin production through reprogramming of the Penicillium chrysogenum fungus.

SourceUniversity of Manchester·JournalProceedings of the National Academy of Sciences·DateFeb 27, 2015

New approach to assessing effectiveness of anti-cancer drugs

Researchers have created a new method to monitor the effect of anti-cancer drugs on rare leukaemia stem cells, enabling personalized treatment and potential cure. The approach involves testing small samples of cells with a novel technology platform.

SourceUniversity of Manchester·JournalNature Protocols·DateFeb 27, 2015
Rigol DP832 Triple-Output Bench Power Supply

Rigol DP832 Triple-Output Bench Power Supply powers sensors, microcontrollers, and test circuits with programmable rails and stable outputs.

Anderson Algorithm increases surgical success with advanced ovarian cancer

The Anderson Algorithm increases surgical success in advanced ovarian cancer by providing a personalized approach to surgery, resulting in high complete resection rates of over 86%. This milestone is strongly tied to improved survival outcomes for patients.

SourceUniversity of Texas M. D. Anderson Cancer Center·JournalNature Reviews Clinical Oncology·DateFeb 27, 2015

Life 'not as we know it' possible on Saturn's moon Titan

Researchers at Cornell University have modeled a methane-based, oxygen-free life form that can metabolize and reproduce like life on Earth. The theorized cell membrane, called an azotosome, is composed of small organic nitrogen compounds and shows stability and flexibility similar to Earth's phospholipid membranes.

SourceCornell University·JournalScience Advances·DateFeb 27, 2015
Nikon Monarch 5 8x42 Binoculars

Nikon Monarch 5 8x42 Binoculars deliver bright, sharp views for wildlife surveys, eclipse chases, and quick star-field scans at dark sites.

Reviving drugs with anti-stroke potential, minus side effects

Researchers have discovered a neuroprotective compound that limits brain damage during ischemia associated with stroke and other brain injuries while minimizing side effects. The pH-dependent NMDA receptor antagonist, 93-31, reduces damaged brain tissue by over half in mouse models.

SourceEmory Health Sciences·JournalNeuron·DateFeb 27, 2015

Study: High stress for new mothers increases secondhand smoke risk for infants

A recent study found that new mothers experiencing higher social stressors have a 2.5 times higher odds of having only partial or no restrictions on smoking in their home, exposing infants to secondhand smoke. The researchers identified statistically significant socio-demographic and socio-economic trends in home smoking rules, highlig...

SourceUniversity of Kansas·JournalAmerican Journal of Public Health·DateFeb 27, 2015

QR codes with advanced imaging and photon encryption protect computer chips

Researchers have developed a new method to protect computer chips using advanced 3D optical imaging and photon encryption, making them virtually uncounterfeitable. The system replaces traditional electronic part numbers with compressed QR codes that can be scaled down to the size of microns.

SourceUniversity of Connecticut·JournalIEEE Photonics Journal·DateFeb 27, 2015

The Association for Gerontology in Higher Education honors new awardees

The Association for Gerontology in Higher Education (AGHE) recognizes excellence in gerontological education and training. The recent award recipients include Suzanne R. Kunkel, Jennifer C. Mendez, Dena Shenk, Eleanor Krassen Covan, Feliciano Villar, Montserrat Celdran, Josep Fabà, Graham D. Rowles, Katherine Humber, Tina Kruger Newsha...

SourceThe Gerontological Society of America·DateFeb 27, 2015
Apple Watch Series 11 (GPS, 46mm)

Apple Watch Series 11 (GPS, 46mm) tracks health metrics and safety alerts during long observing sessions, fieldwork, and remote expeditions.

Leukemia-associated mutations almost inevitable as we age

Researchers estimate that up to 20% of people aged 50-60 and more than 70% of people over 90 have blood cells with the same gene changes as found in leukemia. Genetic mutations associated with leukaemia become inevitable with age, increasing dramatically with age.

SourceWellcome Trust Sanger Institute·JournalCell Reports·DateFeb 26, 2015

Embrace unknowns, opt for flexibility in environmental policies

Researchers at the University of Washington argue that environmental conservation requires adapting to an uncertain future. They suggest creating flexible policies with legs, supporting ecosystem diversity, investing in monitoring, expecting unexpected changes, and designing adaptive management strategies.

SourceUniversity of Washington·JournalScience·DateFeb 26, 2015

Global health experts call into question sub-Saharan cancer data

Cancer data in sub-Saharan Africa is being questioned due to its poor population coverage and weak registration systems. GLOBOCAN statistics are heavily relied upon by Governments and NGOs, despite lacking independent evaluation. Experts call for improved cancer registration systems and more transparency from the WHO.

SourceQueen Mary University of London·JournalJournal of the Royal Society of Medicine·DateFeb 26, 2015

NASA sees the Tropical Cyclone Glenda away from land

Tropical Cyclone Glenda is intensifying with powerful thunderstorms and a hint of an eye forming in its center. It is expected to strengthen and then transition into an extra-tropical storm due to favorable upper-level conditions.

SourceNASA/Goddard Space Flight Center·DateFeb 26, 2015
Kestrel 3000 Pocket Weather Meter

Kestrel 3000 Pocket Weather Meter measures wind, temperature, and humidity in real time for site assessments, aviation checks, and safety briefings.

Fighting the Colorado potato beetle with RNA interference

Researchers use RNA interference to target essential genes in the beetle, resulting in a 100% mortality rate after five days of feeding. This technology offers precise protection without chemicals and foreign proteins production, making it a promising strategy for pest control.

SourceMax Planck Institute for Chemical Ecology·JournalScience·DateFeb 26, 2015

Human antibodies target Marburg, Ebola viruses; 1 step closer to vaccine

Human antibodies have been isolated and characterized that can neutralize the Marburg virus, a close cousin to Ebola. The discovery could lead to the development of an effective treatment and vaccine against these often lethal viruses. Researchers hope to complete clinical safety trials by the end of the year.

SourceVanderbilt University Medical Center·JournalCell·DateFeb 26, 2015

TSRI team shows how rare antibody targets Ebola and Marburg virus

A Scripps Research Institute team has discovered an antibody that can target both Marburg and Ebola viruses, paving the way for new treatment options. The antibody works by binding to a vulnerable site on the virus's surface, preventing it from entering human cells.

SourceScripps Research Institute·JournalCell·DateFeb 26, 2015
Sky & Telescope Pocket Sky Atlas, 2nd Edition

Sky & Telescope Pocket Sky Atlas, 2nd Edition is a durable star atlas for planning sessions, identifying targets, and teaching celestial navigation.

Undocumented Mexican immigrants' kids have higher risk of behavior problems

A recent study by Penn State researchers found that children of undocumented Mexican immigrants have a significantly higher risk of internalizing and externalizing behavior problems compared to their co-ethnic counterparts with documented or naturalized citizen mothers. The study used data from over 2,500 children ages three to 17 in L...

SourcePenn State·JournalJournal of Health and Social Behavior·DateFeb 26, 2015

Cancer drug first tested in pet dogs begins human trials

A new cancer drug called PAC-1, which targets cancer cells by restoring an enzyme's activity, is now entering phase I clinical trials in humans. The drug was first tested in pet dogs with spontaneously occurring cancers and showed promising results.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·DateFeb 26, 2015

Looking into the light

Jon Schuller, UCSB assistant professor of electrical and computer engineering, is studying how light interacts with complex materials like plastics, which have unique optical properties. The research could lead to the development of new organic photonic devices with enhanced performance and low-cost semiconductors.

SourceUniversity of California - Santa Barbara·DateFeb 26, 2015

Skeleton of cells controls cell multiplication

Researchers at Instituto Gulbenkian de Ciencia discovered that proteins controlling cellular rigidity can induce the activation of factors promoting tumor growth. The study found that changes in the cell's skeleton dynamics lead to rearrangements in filaments, resulting in faster cell proliferation and tissue overgrowth.

SourceInstituto Gulbenkian de Ciencia·JournalCurrent Biology·DateFeb 26, 2015
Sky-Watcher EQ6-R Pro Equatorial Mount

Sky-Watcher EQ6-R Pro Equatorial Mount provides precise tracking capacity for deep-sky imaging rigs during long astrophotography sessions.

Patient perceptions of physician compassion measured

A study published in JAMA Oncology found that patients with advanced cancer perceived a higher level of compassion from physicians when presented with an optimistically framed message about future treatment options. The results suggest the need for extra support and care for delivering bad news while preserving hope.

SourceJAMA Network·JournalJAMA Oncology·DateFeb 26, 2015

Urine test could lead to better treatment of bladder cancer

Researchers have identified two urinary biomarkers that can predict bladder cancer-specific survival and guide treatment. The study validated the biomarkers in over 400 clinical samples, showing they are independent predictors of cancer prognosis.

SourceUniversity of Birmingham·JournalBritish Journal of Cancer·DateFeb 26, 2015

Children of undocumented Mexican immigrants have heightened risk of behavior problems

A new study reveals that children of undocumented Mexican immigrants are more likely to experience internalizing and externalizing behavior problems, such as sadness and aggressiveness. The researchers rule out explanations based on socioeconomic status or maternal mental health, highlighting the need for culturally-sensitive services.

SourceAmerican Sociological Association·JournalJournal of Health and Social Behavior·DateFeb 26, 2015
AmScope B120C-5M Compound Microscope

AmScope B120C-5M Compound Microscope supports teaching labs and QA checks with LED illumination, mechanical stage, and included 5MP camera.

Malaria transmission linked to mosquitoes' sexual biology

Researchers found that male mosquitoes' reproductive traits evolved with their capacity to transmit malaria, leading to new targets for control. The study reveals key factors driving mosquito ability to spread the Plasmodium parasite.

SourceHarvard T.H. Chan School of Public Health·JournalScience·DateFeb 26, 2015