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Science News Archive March 2015


Page 20 of 38

'Additive manufacturing' could greatly improve diabetes management

Engineers at Oregon State University have developed an improved type of glucose sensor for patients with Type 1diabetes, utilizing electrohydrodynamic jet printing. The new system is more precise, less intrusive, and cost-effective, with the potential to improve diabetes management and treatment.

Dietary dioxins not associated with increased breast cancer risk

A large cohort study found no association between dietary dioxin exposure and breast cancer risk in post-menopausal women, contradicting previous studies on environmental contact with dioxins. Higher dioxin intake was linked to a decreased risk of hormone-independent breast cancer.

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.

Can watching porn make you better in bed?

A new study published in Sexual Medicine found that men who watch more pornography are more aroused when viewing erotic stimuli. The researchers analyzed data from 280 male volunteers and concluded that there is no relationship between porn consumption and erectile dysfunction.

Molecular ruler sets bacterial needle length

Researchers at University of Utah discovered a disposable molecular ruler that determines bacterial needle length, enabling efficient infection and potential applications in developing new antibiotics and nanotechnology.

Ablation during mitral valve surgery reduces atrial fibrillation

Patients who received ablation along with mitral valve surgery had better rhythm control and fewer episodes of atrial fibrillation compared to those who only received the valve surgery alone. However, they were more likely to require pacemaker implantation in the year following their surgery.

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.

Even high-risk patients can benefit from aortic aneurysm repair

A new study published in Journal of Vascular Surgery found that minimally invasive aortic aneurysm repair can extend lives even in patients with advanced age and kidney disease. However, not all high-risk patients benefit from the procedure, particularly those undergoing cancer treatment.

Patients 80 years and older would benefit from aggressive treatment

Patients over 80 with acute coronary syndromes who received invasive procedures had a 47% reduction in heart attacks, urgent revascularization, stroke, and death compared to conservative treatment. The study suggests that older patients may be denied necessary treatments due to their age.

Study examines memory and effects on the aging brain

A study of over 1,200 cognitively normal individuals aged 30-95 found that men experienced worse memory decline and lower hippocampal volume than women, while APOE ?4 carriers had greater amyloid accumulation from age 70 onwards.

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.

Second natural quasicrystal found in ancient meteorite

A team from Princeton University has discovered a second natural quasicrystal in an ancient meteorite, bringing to two the number of natural quasicrystals ever discovered. The newly found quasicrystal has a decagonal symmetry and is made up of aluminum, nickel, and iron.

Dialing a bespoke signal

Researchers develop a novel approach to drug design using diabodies to tune cytokine receptor signaling. The method shows promise in targeting cancer cells and has the potential to reduce side effects by selectively blocking pathologic signals.

Apple iPhone 17 Pro

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

Moral decisions can be manipulated by eye tracking

Researchers used remote eye-trackers to monitor participants' gaze while thinking about complex moral questions. The results showed that participants' moral decisions were systematically biased towards the target alternative, with a 58% success rate for choosing the randomly selected option.

Heart failure patients fare better with catheter ablation than Amiodarone

A study by the American College of Cardiology found that catheter ablation significantly reduces atrial fibrillation symptoms and hospitalization rates compared to Amiodarone in heart failure patients. Patients who underwent catheter ablation had a higher rate of freedom from atrial fibrillation after two years, with 71% being symptom-...

When cancer cells stop acting like cancer

Researchers at Georgetown University Medical Center have discovered a cellular pathway that controls organ size, which is also related to cancer cell behavior. High-density cells activated the 'Hippo' molecular pathway, while low-density cells did not engage with it, leading to differences in invasion and growth.

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.

VIMS develops underwater robot to assist in oil-spill cleanup

Researchers at VIMS have developed an underwater robot that uses acoustic signals to gauge the thickness of oil slicks, a crucial step in determining spill volume. The ROV will aid in testing oil-spill-response tools and provide a platform for developing other sensors.

New technique to chart protein networks in living cells

A new approach for studying protein behavior in living cells allows scientists to follow protein networks in real-time, revealing the state and activity of molecular machinery. This technique will be useful for investigating disease mechanisms and exploring new drug targets.

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.

Catalyst destroys common toxic nerve agents quickly

A new zirconium-based metal-organic framework (MOF) material has been developed to destroy toxic nerve agents like Soman (GD) and VX, with degradation rates of under three minutes. The material's effectiveness is attributed to its unique zirconium node and porous MOF structure.

Baboon friends swap gut germs

A new study in baboons reveals that social relationships play a role in shaping an individual's gut microbial makeup. The researchers found that baboons who groomed each other more frequently shared more similar sets of gut microbes, suggesting that physical contact may be a key factor in allowing people to swap gut germs.

Maps predict strength of structures

Rice researchers Rouzbeh Shahsavari and Navid Sakhavand have created universal maps that predict the properties of natural and biomimetic platelet-matrix composites. The maps are dimensionless and can be applied to materials built with nanoscale blocks as well as brick walls, or bigger.

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.

Designing a better way to study stomach flu

A team of researchers is working on a five-year program to create a bioreactor that more closely simulates the complex tissues and dynamic movements of the intestinal track. This project aims to deliver a simple, easy-to-use and relatively inexpensive system for infectious disease labs.

Scientists make surprising finding in stroke research

Scientists at the University of Manchester discovered that inflammation in the brain causes and worsens damage after a stroke, contradicting previous theories. The study found that inflammasomes such as NLRP3 are not involved in brain injury caused by stroke, but rather NLRC4 and AIM2 inflammasomes contribute to this damage.

Scientists find DNA is packaged like a yoyo

Researchers found DNA uncoils asymmetrically from nucleosomes like a yoyo, affecting protein production and genetic mutations. This discovery reveals the importance of DNA flexibility in cellular processes.

A second minor planet may possess Saturn-like rings

A team of researchers from MIT has detected optical features around Chiron that may signal the presence of a ring system, jets, or a shell of dust. The findings are based on observations of a stellar occultation in 2011, which revealed symmetrical and sharp features near the start and end of the event.

Fluke 87V Industrial Digital Multimeter

Fluke 87V Industrial Digital Multimeter is a trusted meter for precise measurements during instrument integration, repairs, and field diagnostics.

For some kids, Easter egg hunts can lead to skin problems

Children and adults allergic to nickel can develop rashes after contact with it, including nickel-rich foods like peanuts, oats, and processed cheese. Easter egg hunts can exacerbate these reactions, especially in children who binge on chocolate during the holiday

Complete angioplasty safe for certain heart attack survivors

A study found that complete revascularization after emergency angioplasty for STEMI reduced unplanned angioplasty or bypass surgery by 12%. Rates of death and repeat heart attacks were comparable between groups. The approach may help patients avoid future cardiac events.

How does prison time affect relationships?

Mothers connected to recently incarcerated men experience lower overall relationship quality, supportiveness, and physical abuse. Current paternal incarceration is positively associated with some indicators of relationship quality.

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.

Researchers rethink how our feathered friends evolved

A global genome study using the Gordon supercomputer has revealed new relationships among birds, with over 10,000 species analyzed. The study's findings have significant implications for understanding evolution and human traits.

Global warming brings more snow to Antarctica

Research suggests that a 5% increase in Antarctic snowfall will lead to a 3cm drop in sea level over 100 years. The increased snowfall also elevates the grounded ice sheet on the continent, causing it to flow more rapidly into the ocean and contributing to sea-level rise.

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.

New targets for rabies prevention and treatment

Scientists have discovered 63 genes linked to rabies sensitivity, with potential applications in prevention and treatment. The study's novel screening method can be used to uncover host-based genes involved in various infections and responses to drugs.

A breakfast of champions for diabetics

A new study suggests that eating a high-caloric breakfast and a more modest dinner can significantly reduce post-meal glucose surges and improve glycemic control in type-2 diabetics. By consuming a larger meal at breakfast and a smaller meal at dinner, participants experienced lower blood glucose levels and increased insulin sensitivity.

Pollution levels linked to stroke-related narrowing of arteries

Researchers analyzed medical test records for over 300,000 people and found a significant link between fine-particulate-matter pollution and stenosis in internal carotid arteries. This study suggests that lowering pollution levels may reduce the incidence of carotid artery stenosis and stroke.

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.

Remote ischemic preconditioning fails to improve heart bypass outcomes

A large randomized controlled trial found no significant improvements in cardiovascular death, non-fatal heart attack, stroke, or subsequent surgery in patients who received remote ischemic preconditioning before coronary artery bypass grafting. However, the study did reveal a 15% reduction in heart injury within 72 hours after surgery.

Persuasive power: Members of Congress can sway the public

A study by Ohio State University found that constituents who participated in online town halls with their representatives were more likely to agree with the legislator on important policy issues. These constituents also showed higher levels of trust and approval for their elected official, as well as increased voting intention.

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.

Genetically manipulating plants can reduce their water needs

Researchers have developed genetic tools to pre-adapt crops to future drier climates, improving water efficiency and reducing the need for irrigation. By altering plant stomata, crop yields can be maintained or increased with less water, supporting regions facing water scarcity.

Scans for clinic patients may cut heart attack risk, study finds

A study published in The Lancet suggests that routine heart scans for patients referred to cardiac clinics with chest pain could reduce heart attack rates. The SCOT-HEART trial found that around a quarter of patients had their diagnoses reclassified after receiving the scan, prompting new treatments in many cases.

Symmetry matters in graphene growth

The study found that geometric relationships between graphene and the substrate determine island shapes, with triangular surfaces leading to more irregular structures. Understanding this process can help design grain boundaries with specific properties, useful for electronics applications.

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.

Penn vet team points to new colon cancer culprit

A team of researchers from the University of Pennsylvania has found evidence of a new culprit in colon cancer, the protein MSI2. Overexpression of MSI2 is common in colon cancer tumors and promotes tumor growth by disrupting cellular metabolism.

Colorful life-form catalog will help discern if we're alone

A team of international scientists has created a colorful catalog of reflection signatures from various Earth life forms to aid in the search for extraterrestrial life. The database features 137 diverse life forms, including extremophiles from extreme environments, which can help astronomers spot potential biosignatures on exoplanets.

Targets identified for developing therapies for IBMPFD

A new study has identified protein modification needed to treat IBMPFD, a rare and deadly genetic disorder. The researchers found that changing the p47 protein could lead to proper cellular functions in cells with mutated p97, opening the door for potential treatments or prevention.

Anker Laptop Power Bank 25,000mAh (Triple 100W USB-C)

Anker Laptop Power Bank 25,000mAh (Triple 100W USB-C) keeps Macs, tablets, and meters powered during extended observing runs and remote surveys.