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Science News Archive September 2015


Page 16 of 35

Imaging method has potential to stratify head and neck cancer patients

Researchers have identified a potential new way to predict which patients with head and neck cancer may benefit most from chemotherapy. The use of dynamic contrast-enhanced MRI scans has shown that tumour blood flow can predict response to treatment, with patients having high blood flow more likely to respond.

Satellite shows Tropical Depression 9 weakening

Tropical Depression 9 is battling strong vertical wind shear and dry air, leading to its weakening. The depression is expected to degenerate into a remnant low pressure area in 24 hours or less due to persistent environmental conditions.

Identifying typical patterns in the progression towards Alzheimer's disease

A recent study by Dr. Sylvie Belleville and her team has identified typical patterns of brain progression towards Alzheimer's disease, revealing a complex path characterized by periods of stability followed by accelerated decline. The study suggests that rapid memory decline is a key indicator of risk, allowing for earlier treatment.

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.

Discovery of a triple barrier that prevents cells from becoming cancerous

UAB researchers discovered a triple mechanism that stops chromosome separation in response to DNA injuries, preventing cancerous transformation. The three control pathways, mediated by genes Wee1, Pds1/securina and Rad53/Chk2, must be eliminated simultaneously for damaged chromosomes to be segregated.

The structural memory of water persists on a picosecond timescale

Scientists have found that local structures in liquid water persist for longer than a picosecond, contradicting the general perception of water as a solvent. This discovery was made using ultrafast vibrational spectroscopies and has significant implications for understanding chemical and biological reactions on Earth.

In-hospital nocturnal dialysis may be good for the heart

A new study suggests that in-hospital nocturnal dialysis may be beneficial for patients' hearts as well as their kidneys. The procedure was found to reduce left ventricular mass by a significant margin after one year, which is associated with a lower risk of cardiovascular diseases such as heart failure, heart attack, and stroke.

'Tree of life' for 2.3 million species released

The 'Tree of Life' for 2.3 million species has been released, depicting relationships among living things over time. The collaborative effort combines smaller trees from various sources, with the goal of creating a comprehensive and editable online resource.

Apple iPhone 17 Pro

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

One size doesn't fit all

Researchers at Thomas Jefferson University found that patients with metastatic cancer are at high risk of venous thromboembolism after surgery, and a personalized approach to anticoagulation therapy is needed. The study suggests that the primary type of cancer may play a role in determining the risk for blood clots.

Harvesting clues to GMO dilemmas from China's soybean fields

Researchers at Michigan State University found that Chinese farmers are adapting to shrinking domestic soybean fields by planting more profitable crops like corn, but this shift has environmental implications. Meanwhile, pockets of resilience in soybean cultivation suggest potential solutions for China's burgeoning food demand.

Garmin GPSMAP 67i with inReach

Garmin GPSMAP 67i with inReach provides rugged GNSS navigation, satellite messaging, and SOS for backcountry geology and climate field teams.

The precision of solar photovoltaic power measurements doubled

The European Commission Joint Research Centre has found that the uncertainty in solar photovoltaic power measurements can be reduced by more than half, allowing for tighter margins and increased accuracy. This breakthrough could lead to cheaper and faster calibration of secondary reference devices, benefiting both industry and research.

Flowing electrons help ocean microbes gulp methane

Researchers at Caltech found that ocean microbes can consume large amounts of methane using electrons to share energy over long distances. The microbes use a symbiotic relationship to break down methane, which could help mitigate climate change.

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.

Beef vs. bean meals: Both provide similar feeling of fullness

A study published by the Institute of Food Technologists found that a bean-based meal provided a similar feeling of fullness compared to a beef-based meal. The researchers discovered that plant-based proteins with high fiber content may offer similar appetite regulation as animal protein.

Researchers determine how groups make decisions

A de-centralized decision-making model shows how positive feedback during exploration proves useful for making good and quick decisions. The model explains how trends take off, such as the popularity of Beats headphones, and the success of word-of-mouth marketing tactics.

University of Houston research offers clues about why people end therapy

New research by University of Houston researchers suggests that patients who improve quickly are more likely to drop out before completing treatment. Patients with high initial anxiety levels were also more likely to discontinue treatment. The study's findings highlight the importance of understanding how patients make decisions about ...

Surfing over simulated ripples in graphene

Scientists from India developed a theory governing curved graphene using a quantum simulator based on an optical lattice. The findings could lead to novel graphene-based sensors with controlled deformation.

GoPro HERO13 Black

GoPro HERO13 Black records stabilized 5.3K video for instrument deployments, field notes, and outreach, even in harsh weather and underwater conditions.

Personal profile, not neighborhood factors, determines who calls EMS for stroke

A study published in Annals of Emergency Medicine found that neighborhood characteristics have a lesser impact on EMS activation for stroke than stroke severity or individual factors. Most patients arrived at the ER within 3 hours, but only about half used EMS, with lower stroke severity and younger age being key determinants.

Researchers propose new way to chart the cosmos in 3-D

UBC researchers propose a new way to calculate cosmological distances using fast radio bursts, allowing the positioning of distant galaxies in three dimensions and mapping out the cosmos. The method uses the delay between arrival times of different frequencies to create a catalogue of galaxies.

Sony Alpha a7 IV (Body Only)

Sony Alpha a7 IV (Body Only) delivers reliable low-light performance and rugged build for astrophotography, lab documentation, and field expeditions.

Targeting hypertension by helping pharmacists deliver enhanced patient care

A recent Alberta study found that pharmacist-led care can significantly reduce blood pressure in patients, with patients receiving enhanced care being twice as likely to reach their recommended targets. The RxACTION project demonstrated the effectiveness of pharmacists' independent prescribing and active patient management.

Combination of genes explains Inuit's adaptation to high-fat diet

A study of Inuit DNA reveals how their unique genetic makeup helps them thrive on a high-fat diet, with genes associated with fat metabolism, height and weight, and cholesterol playing key roles. The research suggests that the Inuit population has undergone significant adaptation to its extreme climate environment.

Smoking linked with higher risk of type 2 diabetes

A new meta-analysis has found that smoking significantly increases the risk of type 2 diabetes, with current smokers at a 37% higher risk than never smokers. The risk decreases after quitting, but former smokers are still at an 18% increased risk after 5 years and 11% more than 10 years ago.

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.

How the brain can stop action on a dime

Scientists have discovered a new role for basal forebrain neurons in controlling action, enabling rapid stop of planned behaviors. This discovery opens the door to novel approaches for neurological and psychiatric conditions affecting cognitive functions.

New approach found to tackle breast cancer hormone therapy resistance

Researchers at the University of Manchester have discovered a potential new approach to overcome hormone therapy resistance in ER+ breast cancer by targeting breast cancer stem cells driven by NOTCH4. This approach shows promise in improving treatment outcomes for patients with hormone therapy-resistant breast cancer.

Making mini-makers

Students from Drexel and KAIST will collaborate on nanofabrication and energy storage projects using latest materials and instrumentation. The FIRST Nano2 Co-op Center aims to foster global partnerships in 21st-century technological challenges.

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.

Global burden of leptospirosis is greater than thought, and growing

A new study estimates that leptospirosis affects over 1 million people each year, resulting in nearly 60,000 deaths, primarily in resource-poor settings. The disease is spread through contact with contaminated environments and has the potential to grow further due to climate change and urbanization.

Novel mechanism of insulin resistance in type 2 diabetes

Researchers at Karolinska Institutet have discovered a mechanism that explains how insulin-producing cells can be both insulin-resistant and insulin-sensitive at the same time. The study identifies a key factor, PI3K-C2α, that causes a switch in signaling pathways, leading to beta cell proliferation.

Davis Instruments Vantage Pro2 Weather Station

Davis Instruments Vantage Pro2 Weather Station offers research-grade local weather data for networked stations, campuses, and community observatories.

Sponge cells build skeletons with pole-and-beam structure

Researchers discovered that sponges construct their skeletons through a complex process involving dynamic transport and cementation of spicules. The findings reveal a fundamentally new mechanism of forming animal body shape and may inspire interdisciplinary studies in fields like bioengineering and architecture.

Nano-trapped molecules are potential path to quantum devices

Researchers have successfully trapped single atoms or molecules using a laser light in a doughnut-shaped metal cage. This breakthrough could lead to the development of advanced storage devices, computers, and high-resolution instruments. The technique uses scanning probe microscopy techniques to access individual nano-traps.

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.

Decoding cell division's mysterious spindle matrix

Researchers uncover the crucial function of a protein called BuGZ in assembling the spindle matrix and microtubules during mitosis. The discovery could lead to new insights into cancer and other diseases caused by errors in cell division.

Global warming 'hiatus' never happened, Stanford scientists say

A study by Stanford scientists has found that the supposed 'global warming hiatus' never occurred, due to flawed statistical methods. The researchers developed a new statistical framework to re-examine temperature data, taking into account temporal and spatial dependencies.

Nanoelectronics could get a boost from carbon research

Researchers at Lawrence Livermore National Laboratory have discovered a way to create linear chains of carbon atoms, called carbyne, through laser-melting graphite. This material has potential applications in nanoelectronic devices and superhard materials, as well as tunable semiconductors and hydrogen storage.

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.

Melting Arctic sea ice accelerates methane emissions

Methane emissions from Arctic tundra increase when sea ice melts due to altered ocean temperatures and microbial activity. The loss of sea ice has a significant impact on the Arctic climate, leading to higher temperatures and increased methane production.

Network control: Letting noise lead the way

A research team at Northwestern University has developed a computational algorithm that leverages cells' noisy nature to control the networks governing cellular behavior. By controlling a smaller network of state transitions, they can promote cellular health and prevent disease.

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.

There is strength in diversity!

A new study by researchers from Linnaeus University demonstrates that a higher degree of individual variation is beneficial to populations and species. The findings suggest that more variable populations are less vulnerable to environmental changes, show decreased fluctuations in population size, have superior establishment success, la...

Not all organs age alike

Researchers used integrated 'omics' approaches to analyze changes in proteins across different organs in young and old rats. They found that aging affects organs in strikingly different ways, with specific protein patterns related to the organ's unique cellular properties or function. The study suggests that aging is an organ-specific ...

CalDigit TS4 Thunderbolt 4 Dock

CalDigit TS4 Thunderbolt 4 Dock simplifies serious desks with 18 ports for high-speed storage, monitors, and instruments across Mac and PC setups.