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Science News Archive February 2023


Page 17 of 36

Before global warming, was the Earth cooling down or heating up?

A review article in Nature suggests that the Earth was likely warmer 6,500 years ago and followed a cooling trend until human-caused warming began. The study's findings highlight uncertainties in climate models and underscore the need for further research on natural climate variability.

Strengthening ecology and conservation in the Global South

An international research team from the Global South emphasizes the importance of diversity, equity and inclusion in tropical ecology and conservation. They suggest ten actions for researchers living in the Global South to improve their inclusivity and participation in international research collaborations.

Researchers identify new molecular mechanism key to planarian regeneration

Researchers from the University of Barcelona have identified a new molecular mechanism that allows planarians to regenerate their bodies. The study reveals that the modulation of the Wnt pathway modifies chromatin and lets wound stem cells know the fate of the new tissue, which is crucial for regenerating heads or tails.

Apple iPhone 17 Pro

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

Psychological stress impedes performance, even for Olympic athletes

A study by Yunfeng Lu and Songfa Zhong found that high contactless real-time heart rates are associated with poor performance in elite archers. Athletes' age and gender did not significantly influence the relationship between stress and performance, but factors like competition ranking and score influenced the results.

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.

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.

Ozone depletion leads to Antarctic upper-stratospheric warming in winter

Recent research reveals that ozone depletion leads to Antarctic upper-stratospheric warming during winter months, with temperatures rising significantly since the 1970s. The study highlights the importance of understanding the coupling between atmospheric chemistry and climate in the southern upper stratosphere.

Your first COVID-19 vaccination ‘hurts’ subsequent boosters

A new Northwestern University study suggests that COVID-19 boosters may be less effective due to pre-existing antibodies from initial vaccinations. The study found that these antibodies can rapidly clear the booster from the body, limiting its efficacy. Increasing time between vaccinations is also beneficial for the immune response.

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.

PFAS can suppress white blood cell’s ability to destroy invaders

A study by North Carolina State University found that PFAS chemical GenX and another chemical, PFHxA, can suppress the neutrophil respiratory burst, a method used by white blood cells to kill invading pathogens. The research highlights the potential toxic effects of PFAS on the human immune system.

New discovery to bulk up gluten-free fibre supplement

Scientists at the University of Adelaide have constructed the first reference genome for psyllium husk, a versatile plant-derived product used to improve gut health and control blood cholesterol. The discovery will pave the way for improvements to the quality and quantity of psyllium crops.

No radiotherapy an option for older breast cancer patients, study shows

A new study suggests that radiotherapy does not improve survival rates in older breast cancer patients with early-stage breast cancer. The 10-year study found that adding radiotherapy to breast-conserving surgery and hormone therapy did not increase death rates among patients aged 65 or older.

Gum inflammation parallels novel “cytokine score”

Researchers at NYU College of Dentistry have developed a single score to describe the level of cytokines in saliva, which correlates with the severity of clinical gum inflammation. The study found that higher levels of cytokines in saliva match greater gum inflammation.

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.

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.

Drug linked to lower risk of dementia in people with diabetes

A new study found that people with newly diagnosed type 2 diabetes who took pioglitazone were less likely to develop dementia, with reduced risks of 16% and 54% among those with a history of ischemic heart disease or stroke. The benefit increased with longer drug use periods.

Community co-design model targets Indigenous diet and diabetes

A community co-design model targeting Indigenous diet and diabetes uses a ketogenic eating plan, which aligns with pre-colonisation eating patterns for Australian Indigenous people. The project aims to explore how Indigenous peoples are advantaged by adopting a keto diet and monitor physiological, social, and economic outcomes.

A new strategy for repairing DNA damage in neurons

A team at Harvard Medical School identified a novel mechanism of DNA repair that occurs exclusively in neurons, allowing them to maintain their function over time despite intense repetitive work. The NPAS4–NuA4 complex initiates a pathway to repair DNA breaks induced by neuronal activity.

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.

Working timelines for Swedish employees revealed over 15 years

A new analysis of Swedish workers' employment timelines highlights varying patterns of active work and work interruptions over 15 years. Women were found to be more likely to have longer periods of interruption due to parental leave and sickness-absence benefits, independent of socioeconomic factors.

Engineers discover a new way to control atomic nuclei as “qubits”

Researchers at MIT have proposed a new approach to making qubits and controlling them using beams of light from two lasers of slightly different colors. This method enables the direct manipulation of nuclear spin, allowing for precise identification and mapping of isotopes, as well as improved coherence times for quantum memory.

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.

Genetic test can detect deadly bleeding disorder in dogs

A new genetic test can identify dogs at risk of a potentially deadly disorder resulting in excessive bleeding and bruising after surgical procedures. The DEPOHGEN test will allow for preventative treatment by administering antifibrinolytic drugs to dogs with the mutation before surgery.

Amazon mammals threatened by climate change

A study by the University of California, Davis, finds that most Amazon land mammals are threatened by climate change and projected savannization. Camera trap surveys revealed that only a few species preferred savanna habitat, while most species, including those using both habitats, chose forest habitats.

Mashing molecules: An innovative solution towards greener pharmaceuticals

The IMPACTIVE project aims to develop a sustainable alternative to traditional pharmaceutical production methods. By leveraging mechanochemistry, the team hopes to reduce waste and emissions in the industry. The initiative has already shown promising results, with potential cost savings of up to 12%.

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.

Where do stolen bikes go?

A MIT experiment equipped second-hand bicycles with mobile trackers to track their whereabouts over time, revealing that most stolen bikes remain in the local area. The majority of bikes were resold and re-used within the city's bike fleet.

Detecting rapidly mutating bacteria and viruses with AutoPLP

Researchers developed an 'AutoPLP' technique to detect new variants of zoonotic pathogens. The tool uses computer program designs customized probes with specific sequences, yielding higher accuracy and efficiency in molecular diagnostics. This breakthrough could help rapidly combat evolving pathogen variants.

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.

Add-on device makes home furnaces cleaner, safer and longer-lasting

Scientists at Oak Ridge National Laboratory have developed an affordable technology that removes over 99.9% of acidic gases from natural gas furnaces, producing an ultraclean furnace. This technology can also be applied to other natural gas-driven equipment, reducing emissions and pollution.

Celestron NexStar 8SE Computerized Telescope

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

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.

Soil restoration the key to better health and wellbeing in urban areas

Researchers call for grassroots action to raise awareness about soil biodiversity's role in promoting human health and wellbeing. Cities' loss of biodiversity, pollution, and decline of green spaces reduce exposure to beneficial soil microbes, increasing allergies and illnesses like asthma.

A call for action mounts an emergent attack against invaders

A new subset of B lymphocytes has been found to play a crucial role in promoting the clearance of microbes by enhancing the production of innate immune cells. The discovery highlights the importance of adaptive immune cells in responding to infections and could lead to new strategies for combating serious diseases.

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.