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Science News Archive September 2014


Page 10 of 34

Study finds gallbladder surgery can wait

Researchers found that patients undergoing laparoscopic cholecystectomy during normal working hours were more likely to receive minimally invasive procedures. The study also revealed no significant differences in complication rates or length of stay between day and night surgeries.

The mechanics of tissue growth

Carnegie Mellon researchers found that mechanical processes, not just chemical signaling, are essential for cell communication during tissue growth. The study used a microfluidic control system to analyze cellular mechanics and revealed that disabling these connections impairs cell communication.

Search for better biofuels microbes leads to the human gut

A study published in the Proceedings of the National Academy of Sciences found that human gut microbes can digest fiber and ferment it into nutrients for human cells. The microbes appear to have enzymes that break down complex plant fiber components more efficiently than cow rumen microbes, which could aid in biofuels production.

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.

Antifreeze proteins in Antarctic fish prevent both freezing and melting

Researchers discovered that antifreeze protein-bound ice crystals resist melting even when temperatures warm, leading to potential adverse physiological consequences for the fish. The study also found ice superheating in nature, a phenomenon where internal ice crystals fail to melt at their normal melting point.

Lack of sleep increases risk of failure in school

A Swedish study found that adolescents with sleep disturbance or short sleep duration are less likely to succeed academically. The research suggests that sleep may play a crucial role for adolescents' performance at school, with around 30% of participants reporting regular sleep problems.

Nanotubes help healing hearts keep the beat

Researchers at Rice University created patches infused with conductive single-walled carbon nanotubes to overcome limitations in current patches, which hinder the transfer of electrical signals between cardiomyocytes. The patches can serve as full-thickness repairs without inducing abnormal cardiac rhythms.

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.

Researchers reveal new rock formation in Colorado

A new rock formation, Tava sandstone, has been discovered in the Colorado Rockies, featuring an unusual relationship with older rocks. The formation is believed to have resulted from large earthquakes or other catastrophic events, and its age dates back to ~750 million years ago during the Cryogenian Period.

Patients accept false-positives to achieve diagnostic sensitivity

A study found that patients and healthcare professionals are willing to accept high rates of false-positives in cancer screening tests in exchange for increased diagnostic sensitivity. This means they are more likely to undergo unnecessary testing, such as radiologic or invasive follow-up tests, than accurate but inconclusive results.

First drink to first drunk

A study found that early age of first drink and quick progression to intoxication are associated with high school student alcohol use and binge drinking. The research suggests that teenagers who start drinking at an early age tend to drink more heavily and engage in binge drinking.

Case Western Reserve University on track to become No. 1 synchrotron lab in world

The Case Center for Synchrotron Biosciences will assemble cutting-edge Nnew beamlines at Brookhaven National Laboratory, delivering ultra powerful x-rays to visualize nano-scale structures of molecules and proteins. The new facility will enable scientists to pinpoint disease-causing vulnerabilities and target therapeutic interventions.

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.

NIH funds next phase of Tissue Chip for Drug Screening program

The National Institutes of Health will award $17 million to support the development of human tissue chip technology, which could revolutionize predicting drug failure or success. Integrating chips mimicking human organ functions into a full body system will enable real-time measurement of drug effects and improve biomedical research.

Microplastic pollution discovered in St. Lawrence River sediments

Researchers found microplastics in nearly every sediment sample from the St. Lawrence River, with concentrations rivaling those in the world's most contaminated ocean sediments. The discovery raises concerns about the potential impact of microplastics on freshwater ecosystems.

Researchers develop new DNA sequencing method to diagnose tuberculosis

Researchers have developed a new DNA sequencing method that can detect and characterize the bacteria causing tuberculosis in a matter of days, without the need for time-consuming laboratory culture. The technique, known as metagenomics, uses high-throughput sequencing technologies to analyze DNA extracted from sputum samples.

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.

Gene mutation discovered in blood disorder

A gene mutation in ACD has been linked to aplastic anemia by disrupting telomere function and protecting cells from DNA damage. Researchers hope this discovery will lead to new treatments for the disease.

New analysis of human genetic history reveals female dominance

A new study using high-resolution Y chromosome sequencing has found that female populations have been larger throughout human history and remain so in most populations. The research suggests that processes like polygyny and women's tendency to move with their husbands contribute to females making a greater genetic contribution.

Immune system is key ally in cyberwar against cancer

Researchers at Rice University have developed a new two-step strategy for weakening cancer by harnessing the power of the immune system. The study found that alternating cycles of radiation or chemotherapy with immune-boosting treatments can alter the balance between cancer and the immune system, ultimately bringing the cancer to a wea...

Aranet4 Home CO2 Monitor

Aranet4 Home CO2 Monitor tracks ventilation quality in labs, classrooms, and conference rooms with long battery life and clear e-ink readouts.

Obesity and stress pack a double hit for health

A recent study by Brandeis University found that overweight individuals experience higher levels of stress-induced inflammation, which can contribute to chronic diseases. The researchers measured interleukin-6 (IL-6) levels in normal-weight and overweight individuals during psychological stress tests.

Good bowel cleansing is key for high-quality colonoscopy

The US Multi-Society Task Force on Colorectal Cancer released new consensus guidelines highlighting the importance of good bowel cleansing for high-quality colonoscopy. The guidelines aim to reduce missed precancerous lesions and increase patient safety, with an 85% target for adequate cleansing rate.

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.

Finding hints of gravitational waves in the stars

Researchers have found that stars that oscillate at the same frequency as gravitational waves can absorb energy from those waves and brighten temporarily. This effect could provide scientists with another method to indirectly detect gravitational waves.

Old drug may be key to new antibiotics

A new class of antibiotics could be developed using the anticonvulsant drug lamotrigine, which inhibits bacterial ribosome assembly. Researchers at McMaster University discovered that lamotrigine stops ribosomes from being created in bacteria, a breakthrough in tackling antibiotic resistance.

Apple iPhone 17 Pro

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

News from Annals of Internal Medicine tip sheet -- Sept. 23, 2014

The USPSTF recommends intensive behavioral counseling to reduce risky sexual behaviors among all sexually active adolescents and adults at risk for STIs. Chlamydia and gonorrhea screening is recommended for young women under 24 and older women at increased risk, including pregnant women.

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.

Brainwave test could improve autism diagnosis and classification

A new study suggests that measuring how fast the brain responds to sights and sounds can help classify people on the autism spectrum and diagnose the condition earlier. The study found a strong correlation between the speed of processing auditory signals and the severity of autistic symptoms.

The accelerator of molecular motors

Researchers identify Pex22p module as key component in peroxisomal Ub machinery, boosting enzyme import and degradation of pollutants. This discovery sheds light on peroxisomal disorders like Zellweger syndrome and highlights the importance of reevaluating familiar proteins.

Higher risk of heart disease for South Asians in Canada

A study published in the Canadian Medical Association Journal found that South Asians in Canada have a higher prevalence of heart disease, with rates of death from coronary artery disease being 42% for men and 29% for women. The study also highlighted the need for standardized surveillance systems to monitor non-communicable diseases a...

WEGA fusion experiment passed on to the USA

The WEGA fusion device is being transferred to the University of Illinois for further research and development. The device will be re-assembled as HIDRA and used for plasma physics and fusion research.

Apple AirPods Pro (2nd Generation, USB-C)

Apple AirPods Pro (2nd Generation, USB-C) provide clear calls and strong noise reduction for interviews, conferences, and noisy field environments.

Online ratings influence parents' choices of physicians for their children

A U-M study found that almost three-quarters of parents are aware of online rating sites and over a quarter use them to choose healthcare providers for their children. The researchers also discovered that positive online ratings strongly influenced the likelihood of selecting a child's physician, while negative reviews had little impact.

Reversing the effects of pulmonary fibrosis

Researchers at Yale University have discovered a microRNA mimic, miR-29, that can reverse the effects of pulmonary fibrosis in mouse models. The treatment uses intravenous delivery and has shown sustained effects on lung tissue. Further studies are needed to evaluate its therapeutic potential for human idiopathic pulmonary fibrosis.

Canada funds 22 innovative projects to help save 'Every Woman, Every Child'

Grand Challenges Canada announces $2.4 million in grants for 22 innovative projects addressing maternal, newborn and child health globally. These projects include programs improving infant nutrition, malaria diagnosis, and vaccine storage, as well as initiatives to combat iron deficiency and improve access to healthcare.

Food affected by Fukushima disaster harms animals, even at low-levels of radiation

A recent study published in BMC Evolutionary Biology found that food affected by the Fukushima nuclear disaster harms animals, even at low levels of radiation. Researchers fed pale blue grass butterflies leaves collected from areas varying distance from the disaster site and investigated the effects on the next generation. The study sh...

DJI Air 3 (RC-N2)

DJI Air 3 (RC-N2) captures 4K mapping passes and environmental surveys with dual cameras, long flight time, and omnidirectional obstacle sensing.

New RFID technology helps robots find household objects

Researchers developed a new search algorithm that enables robots to find and navigate to tagged household objects using ultra-high frequency radio-frequency identification (UHF RFID) tags. The system allows the robot to play a 'hot-or-cold?' game to determine its direction, reducing complexity and increasing accuracy.

Looking ahead: Whole eye transplant under development

Researchers at University of California, San Diego aim to develop a whole eye transplant technique that can reconnect the eye's neuronal wiring to the brain. The goal is to treat patients with vision restoration due to structural or functional problems in the eye.

Some concussion education more useful than others, parents say

According to a new University of Michigan C.S. Mott Children's Hospital National Poll on Children's Health, the format of concussion education is linked to parents' confidence about managing their child's injury. Parents who watched videos or presentations rated them as very useful, while those who only signed waiver forms did not.

NASA sees Tropical Depression Polo winding down

Tropical Depression Polo weakened significantly, with maximum sustained winds decreasing to near 35 mph, and is expected to dissipate by September 26. Swells generated by the storm will subside late on September 22, affecting the southern Baja California peninsula.

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.

Wildfires in Khabarovsk Krai, Russia

In the summer of 2014, wildfires burned an area three times larger than usual in Khabarovsk Krai, Russia, with 12,600 forest fires spanning 1.8 million hectares

The fine line between breast cancer and normal tissues

Researchers developed a tool that uses mass spectrometry imaging to identify fatty acid substances in breast tissue, distinguishing between cancerous and normal tissue. The study found several fatty acids were more abundant in breast cancer tissue compared to normal tissue.

NASA's TRMM satellite tallies Hurricane Odile's heavy rainfall

Hurricane Odile brought extreme rainfall to Mexico's Baja California peninsula and southwestern United States, with estimated totals reaching almost three feet. The TRMM satellite analyzed real-time data to track the storm's impact, revealing highest rainfall totals of over 160 mm in northwestern Texas.

Celestron NexStar 8SE Computerized Telescope

Celestron NexStar 8SE Computerized Telescope combines portable Schmidt-Cassegrain optics with GoTo pointing for outreach nights and field campaigns.

Engineers show light can play seesaw at the nanoscale

University of Minnesota researchers have created a nanoscale device capable of capturing and transporting fundamental particles of light called photons. The discovery could lead to the development of faster and more energy-efficient optical devices.

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.

Blood test may help determine who is at risk for psychosis

Researchers at University of North Carolina Health Care developed a blood test that identifies individuals at high risk for developing psychosis. The test measures immune and hormonal system imbalances, as well as oxidative stress, and shows promise in predicting the development of severe mental disorders like schizophrenia.

New rules for anticancer vaccines

Researchers have identified a better measure of predicting cancer neoepitopes, which are specific protein sequences recognized by immune cells. This new approach has the potential to improve current methods for generating anticancer vaccines, increasing their effectiveness in combating cancer.

Hold on, tiger mom

A study published in the Journal of Family Issues found that less supportive and punitive Chinese parenting techniques can lead to negative outcomes in children, including low self-esteem and school adjustment difficulties. The research contradicts the idea that traditional 'Chinese' upbringing is superior and highlights the importance...

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.