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PolyU develops fluorescent probes for rapid detection of formaldehyde in food

The Department of Applied Biology and Chemical Technology (ABCT) of The Hong Kong Polytechnic University (PolyU) has developed fluorescent probes for rapid detection of formaldehyde in food.

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Human languages may share common semantic structure

Human languages possess a common structure underlying word meaning that is independent of culture and geography, a study suggests. Researchers have attempted to determine whether there are universal...

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Competition and extinction of Neanderthals

A study suggests how Neanderthals could have been driven to extinction by competition with modern humans. Archaeologists have hypothesized that competition between Neanderthals and modern humans led...

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Microplastics and Pacific oyster reproductive cycle

Pollutants known as microplastics may endanger the Pacific oyster and other marine bivalves, according to a study.

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Also of interest from the Proceedings of the National Academy of Sciences

Researchers calculated the fraction of papers with international co-authorships in a dataset from the United States National Science Foundation's 2014 Science and Engineering Indicators for seven...

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A reciprocating motion-driven rotation mechanism for the ATP synthase

The ATP synthase employs an intriguing rotary mechanism for the generation of ATP from ADP and Pi, using energy stored in a transmembrane proton gradient. The conventional rotary model, although being...

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Higher levels of mercury in brain not linked with increased risk of Alzheimer...

In a study of deceased individuals, moderate seafood consumption was correlated with lesser Alzheimer disease neuropathology, and although seafood consumption was associated with higher brain levels...

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Medication shows effectiveness in treating nasal polyps for patients with...

Use of the medication dupilumab resulted in improvement of nasal polyps in patients with chronic sinusitis and nasal polyposis not responsive to intranasal corticosteroids alone, according to a study...

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Smartphones for Sensing

Simple, portable analytical devices are permeating into different aspects of our daily lives. Smartphones, as the most popular state-of-art mobile device, have demonstrated remarkable potential for...

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Model helps decide drug dose for clinical testing

A mathematical model may offer a valuable tool for selecting the proper dose of antiviral drugs for further testing in clinical trials. Researchers showed that the model can accurately predict the...

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Europe’s managed forests are contributing to warming; worldwide deforestation...

Two new studies reveal how altering tree coverage is influencing not only the carbon cycle, but air surface temperatures to a significant degree as well. The results highlight how human-made changes...

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Mites drive deformed wing virus in honeybees

A new analysis of one of the most widespread honeybee viruses, deformed wing virus, or DWV, shows that the virus has gone from an endemic to a global epidemic because of greater movement of a major...

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Greenland ice sheet is being shaped by its past

A stiff upper layer of ice that formed atop of the Greenland Ice Sheet during the Holocene era may be causing the deceleration of ice flow within, a new study suggests. A better understanding of the...

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Hair thinning by stem cell loss

Why people lose their locks in old age may be related to the aging of hair follicle stem cells, two new studies suggest. Though it is known that mammals that live for longer lifespans lose their hair,...

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Low-temperature solution process for preparing flexible transparent carbon...

A diazo dye (Congo red)-based simple solution process has been developed to prepare highly flexible carbon nanotube film with low sheet resistance (34±6.6 Ω/□) and high transmittance (81% at 550 nm)...

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Atomic resolution scanning tunneling microscope imaging up to 27 T in a...

Using a homebuilt harsh-condition scanning tunneling microscope (STM), the authors have implemented real space atomic resolution imaging up to 27T in a 32mm bore water-cooled magnet (WM), which...

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Robot cockroaches could help hunt for survivors in rubble piles

Robots that mimic cockroaches might someday assist search-and-rescue missions by scurrying through piles of debris to find survivors, according to study. Cockroaches can infest virtually any space by...

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Measuring real-world value of natural capital

An approach to understanding and measuring the real-world value of natural resources may help governments and businesses redefine conservation expenditures as investments, according to a study. The...

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Categorical color perception and language acquisition

The visual system can support the perception of color categories prior to the acquisition of language, according to a study. Humans can distinguish thousands of colors, but individuals across cultures...

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Promoting risky cooperation in humans

Researchers report that the hormone arginine vasopressin (AVP) promotes risky cooperation in humans. Previous research suggests that cooperation is intrinsically rewarding, allowing humans to overcome...

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