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Science News Archive May 2005


Page 4 of 16

Tobacco use persists after liver transplant for alcoholic liver disease

A recent study found a significant percentage of patients who received a liver transplant due to alcoholic liver disease also used tobacco post-transplant. The majority of smokers resumed their habit quickly and showed increased consumption over time, highlighting the need for more stringent monitoring and intervention.

NASA's rovers continue Martian missions

NASA's Mars Exploration Rovers Opportunity and Spirit have been studying geology on opposite sides of Mars for over a year. The rovers have found extensive layered bedrock, including rocks containing the mineral Ilmenite, which suggests a shared origin and diversity in volcanic rocks in the Gusev region.

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.

Little change in suicidal thoughts, plans or attempts in US

Despite a lack of decline in suicidal ideation, plans, or attempts among US adults aged 18-54, treatment increased dramatically for those who made gestures or attempts. Vulnerable subgroups like the young, women, and those with low education face consistently elevated risk of suicide-related behaviors.

Apple iPhone 17 Pro

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

Tiny bundles seek and destroy breast cancer cells

Researchers at Penn State have developed a new ceramide-based therapy that targets and destroys breast cancer cells while sparing healthy tissue. The treatment uses liposomes to deliver ceramide to the tumor, where it disrupts mitochondria and causes cell death.

Measuring hormone cuts antibiotic use in half in pneumonia patients

A study by the American Thoracic Society found that measuring hormone levels can reduce antibiotic use in pneumonia patients. The study showed that patients with low procalcitonin levels were not given antibiotics and recovered similarly to those who received a full course of antibiotics.

Decreasing death anxiety

A study found that support groups improved depression symptoms and lessened death anxiety in patients with serious medical conditions, leading to better spiritual well-being. Patients were divided into three groups and received either standard care or participated in monthly support group meetings discussing challenging issues.

International adoptees have fewer behavior problems than domestic adoptees

A study of international adoptees found that they have fewer behavior problems than domestic adoptees, with lower rates of mental health referrals. However, clinicians should be aware of higher risks for problem behaviors in domestic adoptees who experienced neglect or maltreatment in their pre-adoptive period.

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.

MUHC scientists describe genetic resistance to rampant virus

Researchers have identified a new mechanism of resistance to CMV, involving the interaction between two genes that flag infected cells for destruction and allow Natural Killer cells to recognize and terminate them. This discovery increases the likelihood of therapies being developed to fight CMV.

Female lung transplant recipients at greater risk of acute lung injury

A study analyzing US lung transplant data between 1994 and 2002 found that female recipients experienced a 60% increased risk of primary graft dysfunction compared to male recipients. This condition can lead to severe lung injury, high mortality rates, prolonged hospital stays, and other serious complications.

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.

'Embodiment awareness' research aim to help the blind learn math more quickly

Researchers at Virginia Tech are developing tactile devices to enhance embodiment awareness for blind students, allowing them to access and comprehend mathematical concepts through spatial imagery. The project has the potential to significantly impact inclusive mathematics instruction for visually impaired students.

Diagnostic imaging in line with other hospital costs

A study analyzing hospital data from 1996 to 2002 found that diagnostic imaging costs remained stable as a percentage of hospital expenses. The study also showed that additional spending on imaging was associated with shorter hospital stays by approximately 0.26 days.

Most in high value homes have income to match and can afford local taxes

A study by Dr. Michael Orton found that there are fewer instances of people on low incomes living in high-value properties than previously thought. The research also highlights how middle and lower-income individuals spend a higher proportion of their income on council tax compared to those with higher incomes.

Study helps doctors ID intimate partner violence abuse victims

A study estimated the predicted probability of 12-month and lifetime IPV for patients presenting with smoking and problem drinking behaviors, helping clinicians identify at-risk patients. The study found that even women who didn't smoke or drink had a significant likelihood of abuse, highlighting the need for routine screening.

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.

Asian drought triggers surge in poverty

A severe drought in Asia has pushed millions of people below the poverty line, but researchers are developing new technologies to help farmers adapt. New rice varieties and irrigation management strategies can improve crop yields and reduce water usage.

Laughter-induced asthma: It's no joke

A study of 235 patients with asthma found that laughter-induced asthma (LIA) is a common condition, affecting 56% of patients. Patients with LIA reported longer periods of well-controlled asthma during which they could laugh without experiencing symptoms, suggesting that LIA may indicate poorly controlled asthma.

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.

Retina adapts to light changes by rewiring itself

The retina's neural connections can reorganize and adapt in response to sudden changes in ambient light, allowing it to process visual information more efficiently. This finding has implications for the development of prosthetic retinal devices and may help researchers better understand the underlying mechanisms of vision.

University of Pittsburgh study shows using expanded critera donors is safe

A seven-year review of liver transplant recipients who received HBV positive and HCV positive organs found patient and graft survival rates comparable to those receiving livers from negative donors. The use of these organs increases the number available for transplantation while maintaining long-term results.

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.

Imaging may not be major driver of hospital cost increases

A new study by Massachusetts General Hospital found that imaging costs contribute to only about 10% of overall hospital expenses. Despite a significant increase in imaging studies during the study period, the cost of these procedures remained relatively stable.

No strong evidence of an increased risk of cancer among personal hair dye users

The study examined 79 studies from 11 countries to investigate the association between personal hair dye use and cancer risk. The authors found no global effect on breast and bladder cancer, but a borderline effect for hematopoietic cancers like leukemia and multiple myeloma. Further investigation is needed for these high-risk groups.

In less dense neighborhoods

After the terrorist attacks, Ohio homeowners shifted their priorities to prioritize housing density, parks, and safety over other factors. A third survey conducted in spring 2004 found that despite increased fear of terrorism, home preferences returned closer to pre-9/11 levels.

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.

Voyager spacecraft enters solar system's final frontier

NASA's Voyager 1 spacecraft has entered the solar system's final frontier, encountering the heliosheath region. The spacecraft's observation of a sudden increase in magnetic field strength and plasma wave noise indicates it has crossed the termination shock, marking a significant milestone in its journey to interstellar space.

Medication errors continue even in highly computerized hospital

In a study published in Archives of Internal Medicine, researchers found that despite implementing multiple computerized interventions, medication errors continued to occur at high rates. The authors identified common error types, including failure to monitor adverse drug reactions and improper medication dosages.

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.

After a time-shift, mixed signals from the circadian clock

Researchers discovered that rat brains exhibit distinct responses to a six-hour delay in the light schedule, with one region adapting quickly and another taking several days. The study suggests that this difference in response is due to the neurotransmitter GABA, which affects brain regions differently.

Building a human kinase gene repository

A new human kinase gene repository has been established, featuring a comprehensive collection of protein and non-protein kinases. The repository will facilitate high-throughput assays and structural studies of this crucial gene family, which plays key roles in various cellular processes.

International medical journals amplify call for registration of drug trials

Major medical journals, including Annals of Internal Medicine, will consider publishing results of clinical trials only if they are registered in a publicly accessible database before enrollment begins. The International Committee of Medical Journal Editors (ICMJE) has adopted a set of 20 required data elements for trial registration.

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.

Magnetic stimulation may improve stroke recovery

A small group of stroke patients showed significant improvement in motor function after receiving repetitive transcranial magnetic stimulation. The treatment, which is non-invasive and painless, promotes increased activity in the damaged hemisphere by reducing motor activity in the unaffected hemisphere.

New playground equipment safer

A recent study by A.W. Howard and colleagues found that replacing hazardous playground equipment with safer versions significantly reduced injury rates. The study, which analyzed data from 86 schools, avoided 550 injuries over a 10-month period after the replacement of unsafe equipment.

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.

Tracking a killer: Observing liver invasion by malarial parasites

Researchers have made a groundbreaking discovery by directly observing the liver invasion of malarial parasites using intravital microscopy. The study reveals a critical stage in the parasite's life cycle, where sporozoites traverse Kupffer cells to wreak havoc on liver tissue.

Students who get drunk weekly have higher risk of injuries

A recent study by Wake Forest researchers found that students who get drunk at least once a week are three times more likely to be hurt or injured due to their own drinking. These students were also twice as likely to fall from a height and need medical care, and 75% more likely to be sexually victimized.

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.

The better educated a woman is, the better she sleeps at night

Research based on a Taiwanese survey of nearly 40,000 people found that better-educated women experience better nighttime sleep, whereas higher education is associated with poorer sleep in men. Social factors such as unemployment, single parenthood, and sex discrimination contribute to these differences.

Founding fathers & mothers: How many crossed the land bridge?

Jody Hey's study suggests that the founder population for the New World was approximately 70 individuals, representing about 1 percent of the ancestral Asian population. The dates of divergence are consistent with archaeological records, spanning 12,000-14,000 years ago.

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.

New World founders small in number

A new study reveals that the first New World populations were founded by a remarkably small group of approximately 70 individuals, who left their ancestral Asian population around 7,000 to 14,000 years ago. This approach addresses limitations in traditional genetic studies and provides insight into the history of the Americas.

The lopsided brain: Attention bias is shared by humans and birds

Researchers found that birds, including domestic chicks and pigeons, show a leftward bias in pecking at grains, similar to human spatial hemineglect. This finding suggests that brain organization underlying attention asymmetries may offer benefits in spatial learning and tasks.

HHMI awards first Gilliam Graduate Fellowships

The Howard Hughes Medical Institute has awarded the first Gilliam Graduate Fellowships to five Ph.D. students from underrepresented groups. The fellowships aim to support disadvantaged students in life sciences research, providing mentorship and financial aid.

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.