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Science News Archive October 2012


Page 11 of 33

Biomarkers in cerebrospinal fluid can identify patients with Alzheimer's disease

Researchers developed a method to differentiate patients with Alzheimer's disease from those with other types of dementia using biomarkers in cerebrospinal fluid. The study analyzed five proteins and found that they could accurately diagnose Alzheimer's disease, as well as distinguish it from Parkinson's disease and Lewy body dementia.

Astronomers study 2 million light year 'extragalactic afterburner'

Astronomers have discovered a supersonic jet of material from a supermassive black hole at the center of a distant galaxy, resembling an afterburner flow. The jet exhibits bright and dark regions, including regularly spaced areas brighter than the rest, which may provide insight into its formation and power.

Immune cells of the blood might replace dysfunctional brain cells

Researchers found that monocytes, a type of immune cell in the blood, can rapidly repopulate the brain after microglia are removed. This discovery highlights a strong homeostatic mechanism to maintain resident immune cells and raises possibilities for delivering therapeutic agents into the diseased brain.

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.

Type 2 diabetes may increase the risk of Barrett's esophagus

A study suggests that Type 2 diabetes increases the risk of Barrett's Esophagus (BE) in diabetic men, with a twofold increase compared to non-diabetic men. The risk is higher in men due to differences in fat distribution, which may contribute to the association between Type 2 diabetes and BE.

Scattered X-rays reveal diseased tissue

Researchers developed a new X-ray technology that analyzes scattered radiation to detect emphysema in lungs. This technology helps identify disease progression and localization, aiding early diagnosis and treatment of Chronic Obstructive Pulmonary Disease (COPD).

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.

The future of Mongolian nomadic lifestyle under debate

A UK-based research project is debating the future of Mongolia's rural areas and its impact on herders' livelihoods. Herders face multiple pressures due to climate change, mining and new policies on land, threatening their traditional nomadic lifestyle.

Beetles use dung balls to stay cool

Researchers discovered that beetles roll their dung balls to avoid overheating, and climb on top of them to regulate body temperature. This behavior is especially prevalent during the midday sun, with beetles climbing their balls seven times as often as those on cooler ground.

The hidden threat posed by inconspicuous stripes

Researchers found that striped patterns formed by particles limit micro-patterned circuit size in electronics, reduce pharmaceutical effectiveness, and affect polymer manufacturing efficiency. The study reveals three distinct patterns of how particles 'stick' to surfaces, including stripe formation and clearing of surfaces.

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.

Using big data to save lives

Researchers are mining data from pediatric intensive care units to find regularities and patterns that can aid doctors in diagnosing and predicting medical episodes. The team plans to incorporate these findings into real-time sensors to see if they help doctors.

UFZ is breaking new grounds in water management

The UFZ has established a Project Office at the Jordanian Ministry of Water and Irrigation to develop an implementation strategy for decentralised wastewater treatment in rural and peri-urban areas. The initiative aims to alleviate water scarcity and groundwater protection issues in Jordan by reclaiming and reusing wastewater locally.

Mock clinical exams boost pediatric residents' comfort in addressing breastfeeding

Pediatric residents who participated in simulated clinical exams showed a significant increase in confidence and comfort when addressing breastfeeding issues. The OSCE interventions also improved their ability to take a thorough history, assess the baby's condition, and provide professional guidance. By training future pediatricians in...

Death from GI bleeding decreased in United States in past 2 decades

The study found a significant decrease in mortality rate for upper gastrointestinal bleeding, from 4.69% in 1989 to 2.13% in 2009. The proportion of patients undergoing in-hospital endoscopic therapy increased from 2% to 27%, and hospital stays decreased from 4.5 days to 2.8 days.

Wayne State researcher's take on brain chemical analysis featured

A Wayne State University researcher has developed a new method for analyzing brain chemicals using carbon fiber microelectrodes. The technique, which meets four key criteria of size, speed, selectivity and sensitivity, enables researchers to measure serotonin levels in mice with antidepressants within five minutes.

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.

Antibiotics not effective for cough due to 'common cold' in children

New research suggests antibiotics do not effectively treat coughs caused by the common cold in children. Peripheral antitussives, such as levodropropizine, appear to be more effective in relieving cough symptoms. The American College of Chest Physicians recommends these treatments for certain types of cough.

For African beetles, dung balls double as 'air conditioning units'

Researchers discovered that African dung beetles use dung balls for evaporative cooling, climbing on them when overheating to maintain a cooler body temperature. This behavior is unique among insects and demonstrates the complex strategies insects employ to regulate their body temperature.

Split-personality elliptical galaxy holds a hidden spiral

Centaurus A, a well-known elliptical galaxy, has been found to harbor a gassy spiral in its center, defying traditional classifications. The discovery was made possible by the use of the Submillimeter Array radio telescope, which revealed two distinct spiral arms within the galaxy's core.

Want the shortest path to the good life? Try cynicism

Research by UC's Susan Prince suggests that ancient Cynics, like Antisthenes, advocated for a rigorous path toward virtue and happiness, requiring drastic attitude changes and emphasizing ethical literature. This approach led to more leisure time, which could be spent living an ethically fulfilling life.

Apple iPhone 17 Pro

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

Clue to cause of Alzheimer's dementia found in brain samples

A study has found a key difference between brains of people with Alzheimer's disease and those who are cognitively normal but have brain plaques. Researchers detected smaller molecules of amyloid beta called oligomers, which were more closely correlated with dementia symptoms.

Pulmonary hypertension combination therapy may lead to greater disease burden

Researchers found that patients with pulmonary arterial hypertension (PAH) receiving IV PGI2 combination therapy experienced higher pulmonary vascular resistance, mean number of PAH-related hospitalizations, and dyspnea scores compared to those on monotherapy or non-IV PGI2 combination therapy. This study was presented during CHEST 2012.

Not all juvenile arthritis is the same

Researchers identified molecular pathways involved in both systemic and arthritic components of SJIA, revealing differences in affected organs. The study found that glucocorticoid signalling was more heavily involved in inflammation associated with SJIA, highlighting the need for tailored treatment plans.

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.

Fainting after air travel may indicate pulmonary embolism

Research found that fainting associated with recent air travel is a key indicator for pulmonary embolism diagnosis. Patients who fainted and had recent air travel were more likely to have saddle emboli and abnormal ECG readings, indicating a higher risk of life-threatening complications.

Trainee presence during endobronchial ultrasound increases complications

The study found that trainee presence during EBUS procedures significantly increased procedure length and propofol dose used, with more complications also reported in the trainee group. Researchers analyzed 607 EBUS procedures and concluded that the absence of a trainee resulted in fewer complications.

Pulmonary hypertension deaths and hospitalizations on the rise

Research reveals a significant increase in US pulmonary hypertension deaths and hospitalizations from 1999-2009, with higher rates observed among women and older adults. Death rates were also higher for blacks than whites, and hospitalization rates varied by region.

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.

Selenium deficiency may cause cardiomyopathy post-gastric bypass

Researchers highlight two cases of selenium deficiency causing cardiomyopathy in patients who underwent gastric bypass surgery. The studies emphasize the crucial role of long-term follow-up and compliance with vitamin supplements to prevent nutritional deficiencies and related health complications.

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.

Breast cancer scans possible with a 25 times reduced radiation dose

Scientists have developed a method to produce 3D X-ray images of the breast with a radiation dose 25 times lower than current hospital scanners, enabling improved diagnosis and potentially reducing breast cancer mortality. The new technique combines high-energy X-rays, phase contrast imaging, and advanced mathematical algorithms.

Rejecting arsentate

Researchers discovered that bacteria in arsenic-rich environments developed a protein, PBP, with extreme selectivity for phosphate over arsenate. The unique bond between the protein and arsenate molecule led to repulsion and prevented its entry into the cell.

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.

Preventive law becomes preventive medicine

Collaboration between lawyers and physicians can help address health disparities by providing access to essential services. A recent report estimates that 50-85% of healthcare users experience unmet legal needs, impacting their health.

5-question survey may increase COPD diagnoses

A simple 5-question patient-administered survey (COPD-PS) may lead to increased COPD diagnoses. The study found that screening tools in primary care could facilitate diagnosis of COPD in this population.

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.

Saving time, saving lives

The European Society of Cardiology emphasizes the importance of timely medical care in cardiac emergencies. Early recognition and call for help can lead to better diagnosis and treatment outcomes. The organization aims to improve patient survival rates through education and collaboration among professionals.

Sweden's only coral reef at risk of dying

The Säcken reef in Sweden's Koster Fjord is threatened by trawling and sedimentation, with a recent study showing it is isolated from nearby reefs. To combat this, researchers are introducing healthy corals from Norway to aid in the reef's restoration.

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.

Alarming increase in malignant melanoma on the west coast of Sweden

Researchers found a significant increase in malignant melanoma cases in the Västra Götaland region of Sweden, with men and women exposed to more hours of sunlight during their summer holidays. The study suggests that intermittent sun exposure contributes to the development of melanoma.

A whale with a distinctly human-like voice

Researchers have found that a white whale named NOC can imitate human speech by modifying its vocal mechanics. The study's findings suggest that NOC had motivation for contact and made an effort to produce speech-like sounds.

Meta Quest 3 512GB

Meta Quest 3 512GB enables immersive mission planning, terrain rehearsal, and interactive STEM demos with high-resolution mixed-reality experiences.

Poverty, rural living linked to increased COPD mortality in the US

Research by CDC reveals disparities in COPD mortality by state, poverty level, and urban vs. rural location, with poorest outcomes seen in rural and poor communities. Smoking prevalence, air quality, and access to healthcare are key contributing factors to these disparities.