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Science News Archive 2024 - Page 18


Page 18 of 484

Mapping carbon emissions: The role of territorial dynamics in China

Researchers have unveiled a spatial dimension-based analysis of China's CO2 emissions, revealing a stable correlation between emission patterns and designated roles of urbanization, food security, and ecological zones. This study supports the development of long-term prediction models for CO2 emissions from a spatial dimension.

SourceIGSNRR CAS·JournalJournal of Geographical Sciences·DateDec 12, 2024

Trends in school mental health and substance use education

Research from 2008-2020 shows an increase in emotional/mental health and suicide prevention in schools, but a decrease in substance use prevention, particularly among middle schools. This shift highlights the need for targeted teacher training and resource allocation to address emerging trends in school mental health.

SourceJAMA Network·JournalJAMA·DateDec 12, 2024

Olive, grape, garlic, rosemary and saffron have properties against cardiovascular diseases

A review of the mechanisms of action and clinical evidence of bioactive compounds from Mediterranean diet constituents shows promise in treating atherosclerosis and reducing heart attack risk. The study identifies potential knowledge gaps and recommends designing preclinical and clinical studies to evaluate these natural extracts.

SourceUniversitat Autonoma de Barcelona·JournalFood Bioscience·TypeLiterature review·DateDec 12, 2024

Genomic analysis refines timing of Neandertal admixture – and its impact on modern humans

A genomic study spanning over 300 genomes reveals that modern humans acquired several Neanderthal genes advantageous for our lineage, including those in skin pigmentation, immune response, and metabolism. The study also found rapid natural selection of Neanderthal ancestry within 100 generations after gene flow.

Superflares once per century

A new study reveals that sun-like stars experience superflares approximately once per century, releasing massive amounts of energy in short periods. This finding suggests that the Sun's long-term behavior may be more frequent than previously thought, with implications for forecasting dangerous space weather.

SourceMax Planck Institute for Solar System Research·JournalScience·TypeObservational study·DateDec 12, 2024

UVA model advances rational design of more effective maternal vaccines for newborns

Researchers created an advanced computational model to optimize maternal vaccine design and protect high-risk populations. The model helps reveal which antibodies can pass through effectively and when, enabling the development of safer, more effective vaccines.

SourceUniversity of Virginia School of Engineering and Applied Science·JournalNature Immunology·TypeComputational simulation/modeling·DateDec 12, 2024

COMET trial finds quality of life similar among patients with low- risk DCIS whether they received active monitoring or surgery

Patients with low-risk ductal carcinoma in situ (DCIS) who underwent active monitoring reported comparable physical, emotional, and psychological outcomes to those who received upfront treatment. The study found no significant differences in health-related quality of life between the two groups over time.

Study sheds light on the origin of the genetic code

A recent study revises our understanding of the universal genetic code's evolution, suggesting that early life preferred smaller amino acids over larger ones. The researchers found that amino acids with aromatic ring structures were incorporated into the code later than previously thought, offering clues about other extinct genetic codes.

SourceUniversity of Arizona·JournalProceedings of the National Academy of Sciences·TypeData/statistical analysis·DateDec 12, 2024

Spirals and waves

Researchers Navdeep Rana and Ramin Golestanian investigated non-reciprocal interaction and defect formation in active systems, finding well-ordered wave patterns emerge when non-reciprocity exceeds a certain level. This property opens avenues for applications of non-reciprocal active matter systems.

SourceMax Planck Institute for Dynamics and Self-Organization·JournalNew Journal of Physics·TypeComputational simulation/modeling·DateDec 12, 2024

What brings richness to sparkling wines?

Researchers have discovered 11 probable kokumi compounds in sparkling wines, which may contribute to their rich, full-bodied taste. The study identified these compounds through a combination of computer simulations and wine tastings, paving the way for further investigation into the molecular basis of kokumi sensation in wines.

SourceAmerican Chemical Society·JournalJournal of Agricultural and Food Chemistry·DateDec 12, 2024

El Niño exacerbates effects of drought on Amazon groundwater and increases fire risk, study finds

Researchers found a link between El Niño events and increased fire risk in the Amazon region, particularly where groundwater storage is compromised. The study highlights the critical role of groundwater in sustaining vegetation during droughts, emphasizing the need for prevention efforts during extreme climatic conditions.

SourceFundação de Amparo à Pesquisa do Estado de São Paulo·JournalScience of The Total Environment·DateDec 12, 2024

Graz language database improves automatic speech recognition of Austrian German

Researchers at Graz University of Technology developed a new database to improve speech recognition of Austrian German using speech data from 38 speakers. They found that traditional HMM-based systems are more robust for short sentences and dialectal language, while transformer-based models excel with longer sentences and context.

SourceGraz University of Technology·JournalComputer Speech & Language·DateDec 12, 2024

“Us” vs. “them” biases plague AI, too

A new study finds that large language models are prone to social identity biases, favoring their perceived ingroup while expressing negativity toward outgroups. However, the researchers discovered that carefully selecting the training data can reduce these biases, suggesting promising directions for improving AI development and training.

SourceNew York University·JournalNature Computational Science·TypeComputational simulation/modeling·DateDec 12, 2024

Paracetamol may not be as safe as perceived in older people, according to a new study

A new study by the University of Nottingham found repeated paracetamol doses in older adults (65+) can lead to increased risks of peptic ulcers, heart failure, hypertension, and chronic kidney disease. The study suggests paracetamol use should be carefully reconsidered for long-term conditions such as osteoarthritis.

SourceUniversity of Nottingham·JournalArthritis Care & Research·TypeData/statistical analysis·DateDec 12, 2024

Caregiving stress linked to high blood pressure in younger Black women

A new study finds that caregiving stress in younger Black women is associated with an increased risk of developing hypertension. The research team followed the health of more than 3,500 Black adults and found that those reporting moderate or high caregiving stress were more likely to develop hypertension.

SourceNYU Langone Health / NYU Grossman School of Medicine·JournalHypertension·TypeData/statistical analysis·DateDec 12, 2024

Planets form through domino effect

A recent study using radio astronomy observations has revealed that planets help form the next by concentrating dust grains into a narrow region at their orbits. This sequential formation process can explain how our Solar System formed, with each planet triggering the next like a line of falling dominos.

SourceNational Institutes of Natural Sciences·JournalThe Astrophysical Journal Letters·TypeObservational study·DateDec 12, 2024

UH researchers characterize keys to successful pregnancy in humpback whales

Humpback whales' reproductive success is linked to maternal characteristics and energy balance. Researchers found fetal growth rates increased with maternal length and energy demands peaked in the final third of pregnancy, coinciding with fasting and migration. This study highlights a vulnerable period for pregnant humpback whales and ...

SourceUniversity of Hawaii at Manoa·JournalThe Journal of Physiology·TypeObservational study·DateDec 12, 2024