Other Sciences News

Study: Twitter May Have Lost Half of Environmentally-Oriented Users Since Elon Musk Took Over

Tracking changes among Environmental and Politics Twitter users: (A) the proportion of users that were active in each 15-day window; (B) the rate of change in the proportion of active users for both samples. In both plots, the points depict the observed data while the color band with a broken line shows the 99% confidence interval based on a bootstrap sample of the data. The broken vertical line corresponds to April 25, 2022, when the Twitter board accepted Musk’s initial purchase offer, and the heavier broken line corresponds to October 28, 2022, when Musk’s takeover was finalized. Image credit: Chang et al., doi: 10.1016/j.tree.2023.07.002.
Aug 16, 2023 by Sergio Prostak

In a study sample of 380,000 environmentally oriented users, nearly 47.5% became inactive on Twitter (recently renamed X) after it was sold in October 2022. Given Twitter’s importance for public communication, the findings have troubling implications for digital environmental information sharing and public mobilization. Tracking changes among Environmental and Politics Twitter users: (A) the proportion of users that were active in each 15-day window;...

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Ruan et al. demonstrate how glacial cycle variability synchronized hominin habitat overlap, Denisovan-Neanderthal interbreeding, and early human gene flow. Image credit: Axel Timmermann.

Climate Shifts Orchestrated Interbreeding between Neanderthals and Denisovans, New Study Says

Aug 15, 2023 by News Staff

Looking at habitat overlap for Neanderthals and Denisovans, Pusan National University researcher Jiaoyang Ruan and colleagues found patterns of interbreeding...

Delgadillo-Puga et al. show cardamom could be a healthy dietary choice, and that its consumption can help maintain lean body weight and reduce fat. Image credit: PDPics.

Cardamom Seed Consumption Increases Appetite and Reduces Fat, New Research Suggests

Aug 14, 2023 by Natali Anderson

Cardamom seed (Elettaria cardamomum) is consumed in several countries worldwide and is considered a nutraceutical spice since it exerts antioxidant, anti-inflammatory,...

The occasional use of stone tools as ‘strike-a-lights’ was a technocultural feature shared among Neanderthals in France.

Extreme Glacial Cooling Caused Extinction of Early Pleistocene Hominins in Europe, Study Says

Aug 10, 2023 by News Staff

New paleoclimate evidence shows that around 1.1 million years ago, the southern European climate cooled significantly and caused an extinction of archaic...

Mallotus peltatus. Image credit: Abu Hamas / CC BY-SA 4.0.

Tropical Plant Extract May Help Prevent Obesity

Aug 8, 2023 by Enrico de Lazaro

Obesity is a major risk factor for various chronic diseases, especially lifestyle-related diseases. Therefore, finding a protective substance against obesity...

The fructose survival hypothesis proposes that obesity and metabolic disorders may have developed from over-stimulation of an evolutionary-based biologic response (survival switch) that aims to protect animals in advance of crisis. Image credit: Günther.

Excessive Fructose Metabolism Explains Obesity and Epidemics of Obesity-Associated Diseases: Study

Aug 7, 2023 by News Staff

Obesity and its associated metabolic diseases have had devastating health consequences on modern society. New research from the University of Colorado...

Pecans (Carya illinoinensis) are considered a functional food due to the high content of polyunsaturated fatty acids, dietary fiber and polyphenols. Image credit: Tseiu.

Pecans May Help Prevent Obesity and Reduce Inflammation, Study Shows

Aug 2, 2023 by Enrico de Lazaro

Researchers from Texas A&M University and elsewhere have assessed the biochemical, histological and molecular effects of whole pecans (Carya illinoinensis)...

The thylacine (Thylacinus cynocephalus). Image credit: University of Melbourne.

Study: Brain of Tasmanian Tiger Was Typical of Carnivorous/Scavenger Marsupials

Aug 1, 2023 by News Staff

The thylacine (Thylacinus cynocephalus) is the largest of modern-day carnivorous marsupials and was hunted to extinction by European settlers in Australia....

Mangoes are one of the most popular fruits in the world, grown in more than 100 countries globally and consumed by an extremely diverse population. Image credit: Daniel Dan.

Mango Consumption Improves Antioxidant Enzyme Activities and Vascular Health, Scientists Say

Aug 1, 2023 by News Staff

With only 70 calories and over 20 different vitamins and minerals, a 3/4-cup serving of mango is nutrient-dense, making it a superfood. Mangoes are one...

Various exercise training modes improve resting blood pressure, particularly isometric exercise. Image credit: Viktor Ristic.

Planks and Wall Sits are Best for Lowering Blood Pressure, New Review Says

Jul 30, 2023 by Enrico de Lazaro

According to a large-scale systematic review and meta-analysis of 270 previous studies, aerobic exercise training, dynamic resistance training, combined...

Daily strawberry consumption was linked to improved cognitive function, lower blood pressure and higher antioxidant capacity. Image credit: Pasja1000.

Study: Strawberry Consumption Improves Cognitive Function and Cardiovascular Health in Older Adults

Jul 28, 2023 by News Staff

Daily consumption of 26 grams of freeze-dried strawberry powder moderately improves cognitive processing speed, lowers systolic blood pressure, and increases...

Increasing olive oil intake in place of margarine and mayonnaise represents a potential strategy to reduce fatal dementia risk. Image credit: StockSnap.

Regular Olive Oil Consumption Reduces Fatal Dementia Risk, Study Suggests

Jul 25, 2023 by Natali Anderson

In a large study of U.S. adults, higher olive oil intake was associated with a moderately lower risk of fatal dementia, irrespective of diet quality. Increasing...

The 300,000-year-old double-pointed wooden stick at the site of Schöningen in Germany. Image credit: Peter Pfarr.

Middle Pleistocene Humans Possessed Sophisticated Woodworking Skills, Study Reveals

Jul 20, 2023 by News Staff

An analysis of a 300,000-year-old double-pointed wooden stick from the Middle Pleistocene site of Schöningen, Germany, shows it was scraped, seasoned...

Using NMR-based analysis, Tira et al. were able to identify the most abundant constituents of espresso coffee. Image credit: Sci.News.

Espresso Coffee Mitigates Aggregation and Condensation of Alzheimer’s Protein in Lab Experiments

Jul 19, 2023 by Natali Anderson

Espresso coffee is among the most consumed beverages in the world. Recent studies report a protective activity of the coffee beverage against neurodegenerative...

The structure of boron monoxide was a longstanding problem, dating back to 1940. Solving it required developing new NMR methods as well as applying x-ray diffraction (XRD), thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), x-ray photo electron spectroscopy (XPS), and transmission electron microscopy (TEM). Image credit: U.S. Department of Energy Ames National Laboratory.

Chemists Finally Determine Structure of Boron Monoxide

Jul 19, 2023 by News Staff

Boron monoxide, a binary compound of boron and oxygen, was first reported in the 1940s. However, scientists were unable to determine the structure of the...

WHO recommends that adults limit fat intake to 30% of their total energy intake, with no more than 10% of total energy coming from saturated fats, and less than 1% coming from trans fats. Image credit: Pexels.

WHO Releases New International Dietary Guidelines

Jul 18, 2023 by News Staff

Three new guidelines from the World Health Organization (WHO) — Saturated fatty acid and trans-fatty acid intake for adults and children, Total fat...

Wu et al. investigated the association of adult literacy activities (taking education classes, using a computer, and writing letters or journals) and active mental activities (playing games, cards, or chess and doing crosswords or puzzles) with dementia risk among older individuals. Image credit: Steve Buissinne.

Study: Engagement in Literacy and Active Mental Activities May Help Prevent Dementia in Older Age

Jul 17, 2023 by Natali Anderson

In a cohort study of over 10,000 older individuals in Australia, more frequent participation in adult literacy activities (taking education classes, using...

An artist’s impression of the early Earth. Image credit: NASA.

Earth’s Day was a Constant 19.5 Hours for Almost 1.5 Billion Years, Study Says

Jul 13, 2023 by News Staff

New research from the University of Toronto shows that from approximately 2 billion until 600 million years ago, an atmospheric tide driven by the Sun...

The 2,000-year-old fresco in Pompeii showing what may be an ancestor of modern pizza. Image credit: Pompeii archeological park.

Pompeii Fresco Depicts ‘Possible Ancestor’ of Italian Pizza

Jul 11, 2023 by Enrico de Lazaro

A 2,000-year-old still life fresco depicting a flat focaccia (Italian flatbread) has been found among the ruins of Pompeii, an ancient Roman city frozen...

Goh et al. show that silences can substitute for sounds in three prominent auditory illusions caused by event representation. Image credit: Finmiki.

Silence is Truly Heard, New Research Suggests

Jul 11, 2023 by News Staff

Do we only hear sounds? Or can we also hear silence? These questions are the subject of a centuries-old philosophical debate between two camps: the perceptual...

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