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Science News Archive February 2009


Page 5 of 24

Genetic discovery could lead to advances in dental treatment

Researchers at Oregon State University have identified the gene Ctip2 as controlling tooth enamel production, a significant step towards repairing damaged enamel and preventing cavities. This discovery could lead to new approaches in dental health, including using tooth stem cells to stimulate enamel growth.

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.

The honeymoon's over: Consumers overestimate enjoyment of products

A study found that people tend to overestimate their long-term enjoyment of products, leading them to choose cheaper options with fewer features. This is because consumers who think about how long they will use a product and anticipate decreased enjoyment are less likely to buy premium items.

2008 was Earth's coolest year since 2000

The NASA Goddard Institute for Space Studies found that 2008 was the coolest year on record since 2000, with most of the world experiencing near-normal or warmer temperatures. A strong La Niña event in the Pacific Ocean contributed to the cooling effect.

Chili peppers help to unravel the mechanism of pain

Researchers discovered that capsaicin, found in chili peppers, triggers a desensitization process in pain receptors, allowing them to adapt to painful stimuli. This adaptive response enables the receptor to continuously respond to varying stimuli, leading to a shift in responsiveness threshold.

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.

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.

Lowering your cholesterol may decrease your risk of cancer

Research suggests that lowering cholesterol levels can block the growth of prostate tumors and reduce cancer incidence. Ezetimibe, a cholesterol-lowering drug, has been shown to inhibit tumor angiogenesis, promoting less aggressive tumors.

Shredding corn silage could produce more ethanol at less cost

A Purdue University researcher has discovered a way to increase access to cellulose in plant cell walls by shredding corn stover instead of chopping. This results in better access to the main component needed for making ethanol. Shredding corn stalks also increases the surface area of the material and reduces energy consumption.

Social patents

Experts explore using social networking tools to identify prior art in patent applications, streamlining the process for the US Patent and Trademark Office. The Peer-to-Patent pilot project demonstrates a promising approach to reducing backlog, with similar initiatives being investigated by UK and European offices.

Immune system 'atlas' will speed detection of kidney transplant

A new immune-system 'atlas' will improve doctors' ability to monitor transplanted organs and shed light on the mechanisms of gradual, cumulative kidney malfunction after transplant. The atlas allows for inexpensive, noninvasive blood tests that show whether a donated kidney is infected or accruing chronic injuries.

In U of I study, kids learn to handle emotional responses to siblings

A University of Illinois researcher has developed a program that helps children manage their emotions and interact positively with their siblings. The study found that the program improved sibling relationship quality, reduced parental involvement, and increased children's ability to regulate their emotions.

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.

Are women more generous? New study sheds light on donation behavior

A new study in the Journal of Consumer Research found that donations are driven by overlap between donors and recipients, rather than cause-worthiness. Women tend to donate more to victims of natural disasters like Hurricane Katrina, while men donate more to victims of terrorist attacks.

No longer a gray area: Our hair bleaches itself as we grow older

A team of European scientists discovered that going gray is caused by a massive build-up of hydrogen peroxide, which blocks the normal synthesis of melanin, our hair's natural pigment. This research provides an important first step in understanding the root cause of gray hair.

MIT rocket aims for cheaper nudges in space

MIT scientists have developed a new rocket called the Mini-Helicon Plasma Thruster, which runs on inexpensive gases and could slash fuel consumption by 10 times that of conventional systems. The propulsion system uses electrical energy to accelerate propellant, providing thrust for spacecraft maneuvers.

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.

Suppressing cancer with a master control gene

Researchers discover gene ATOH1 regulates cell specialization, preventing cancer formation in organisms. Reactivating the gene in human colon cancer cells halts tumor growth and induces cell death.

Previous work experience not always a positive for a new job

A study found that prior work experience can lead to lower performance at a new job, as workers bring old habits and skills that don't adapt to the new role. Employees who score high on adaptability and fit in with their company's culture tend to perform better.

How can bias be prevented in the medical literature?

Bias in medical literature can be prevented through recognition and declaration of competing interests, detailed authorship policies, and mechanisms to control outcome reporting bias. The PLoS Medicine editors propose these measures to reestablish the integrity of the scientific record.

Meta Quest 3 512GB

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

Do experiences or material goods make us happier?

A study published in the Journal of Consumer Research found that highly materialistic individuals were equally happy with positive purchases of either experiential or material goods. However, emotional intensity decreases more quickly after material purchases than experiential ones.

Apple iPhone 17 Pro

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

Learning from our mistakes: Consumers won't be deceived twice

Researchers found that consumers' quality expectations were initially misled by biasing cues, but they learned from these mistakes and made more accurate judgments in subsequent purchases. The study suggests marketers should rethink their strategies for misleading consumers with false attributes, as it may backfire on repeat purchases.

Mail and electronic reminders may increase colon cancer screening

A study published in Archives of Internal Medicine found that mail reminders increased colon cancer screening rates by 44% compared to non-reminded patients. Electronic physician reminders also showed promise, especially among patients with three or more primary care visits, resulting in a 59.5% screening rate.

Celestron NexStar 8SE Computerized Telescope

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

Shape-shifting coral evade identification

Researchers used genetic markers to study coral groupings and found that skeletal shape is not a reliable way to differentiate species. This discovery highlights the need for accurate understanding of coral biodiversity to conserve coral reefs.

Tips from the American Journal of Pathology

Researchers found that HAART contributes to pulmonary hypertension in HIV-infected patients by impairing blood vessel-lining endothelial cell function. A novel treatment for chronic hypoxic pulmonary hypertension (PHTN) involves neprilysin, which protects against PHTN by regulating neural signaling molecules.

Relationships in rank and file

Researchers Johannes Soeding and Andreas Biegert have developed a new method called CS-BLAST that takes into account the sequence context to improve similarity searches. This approach can identify twice as many distant relatives of proteins compared to traditional BLAST, leading to better insights into gene and protein functions.

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.

Vitamin D deficiency may increase risk of colds, flu

A large-scale study suggests that vitamin D deficiency may increase the risk of respiratory infections, such as colds and flu. Individuals with chronic respiratory disorders, like asthma and emphysema, are particularly susceptible to these infections.

Fluke 87V Industrial Digital Multimeter

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

Patient knowledge of health information influences cancer treatment

A study published by the American Cancer Society found that patients seeking health information online are more likely to be aware of and receive the latest cancer treatments. Patients who search for information on targeted therapies like Avastin and Erbitux are up to 3.22 times more likely to receive these treatments.

Building a better protein

Researchers at Rensselaer Polytechnic Institute have developed a targeted strategy to substantially increase the thermodynamic stability of nearly any protein while preserving its unique function. The design technique creates proteins that remain stable at temperatures 10 degrees Celsius higher than normal.

Using wireless sensors to monitor bridge safety

A network of low-power wireless sensors will be used to capture and transmit data on bridge conditions, reducing inspection costs. The technology aims to identify signs of corrosion and wear in aging bridges before they fail, ensuring public safety.

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.

Fate and 'face': Cultural differences lead to different consumer approaches

A new study published in the Journal of Consumer Research found that Asian consumers are more tolerant of nonsocial failures due to their strong belief in fate, while Western consumers are more demanding. The researchers also discovered that brands emphasizing fate can increase Asian consumers' tolerance for social failures.

Kids who watch R-rated movies are more likely to smoke

A new study found that parental permission to watch R-rated movies increases the likelihood that children believe it's easy to obtain cigarettes. This perception is associated with a higher risk of smoking among kids, suggesting parental smoking and home environment can contribute to youth smoking.

Does sex sell? New study shows how to make women respond to sexy ads

A new study suggests that women's attitudes toward sexually oriented advertising can improve if ads depict sex in a manner consistent with women's intrinsic values, such as devotion and commitment. Experiment 1 found that commitment-related cues in the ad boosted women's attitudes towards the product.

AGI reports on the state of geoscience employment

The AGI Workforce Program releases its third chapter, Geoscience Employment Sectors, which examines the demographics and dynamics of the geoscience workforce. The report provides insights into salaries, experience, and job transitions for geosciences graduates, as well as employment projections for 2016.

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.

Human stem cells provide a new model for Lou Gehrig's disease

Researchers have developed a human cell-derived model of ALS, allowing for the study of the disease's progression and potential therapeutics. The model, derived from motor neurons generated from human embryonic stem cells, exhibits characteristics typical of the disease.

Revolutionary method generates new template for microelectronics

Researchers at UMass Amherst and Berkeley developed a new method for producing defect-free, thin polymer films using layered block copolymers. The technique achieved densities over 15 times higher than previous efforts, enabling up to 10 terabits per square inch of storage space.

New twist on 40-year-old discovery

Researchers have discovered a new connection between Carter's constant and Newtonian gravity, shedding light on the behavior of rotating black holes. The findings have significant implications for gravitational-wave astronomy, potentially allowing the detection of small black hole orbits.

New technique for cancer screening

Researchers have developed a new technique to determine tumor methylation status in archived tissue samples, providing a potential biomarker for early cancer diagnosis and risk assessment. The technique uses high-resolution melting analysis and has been validated on archival and fresh tissues.

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.

UAB researchers report breakthrough in HPV research

UAB researchers have developed a new method to produce and study HPV-18, which could lead to a better understanding of how the virus functions and causes diseases. The new approach allows for the reproduction of the entire infection cycle of HPV-18 in primary human skin cells, providing opportunities to understand its molecular mechani...

Don't flatter yourself: Why survey research can be flawed

A new study reveals that socially desirable responding, where people present a more favorable image of themselves, affects the accuracy of surveys globally. Cognitive busyness and cultural orientation play a significant role in this phenomenon.

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.

JCI table of contents: Feb. 23, 2009

Researchers developed small molecules targeting Hsp90 in mitochondria to induce tumor cell death. This combinatorial approach may be more effective than targeting single signaling pathways. Gene therapy also restored muscle strength in a mouse model of muscular dystrophy by anchoring nNOS to the sarcolemma.

Male infertility associated with testicular cancer

Men with male factor infertility are 2.8 times more likely to develop testicular cancer than those without this condition. A total of 34 men diagnosed with testicular cancer were found in a study of 22,562 infertile men.

Get personal to improve heart health

A new study suggests that doctors and nurses should offer high-risk patients targeted advice to improve heart health. The research found that boosting patients' sense of vulnerability does not help, but rather provides personalized information on specific CHD preventative diets.