Peer Reviewed

Diarrhea is common in calves and causes enormous financial losses to the livestock industry worldwide. Antibiotics are often used to treat this, but it causes harmful side effects. A research group addressed this problem by exploring an alternative method. Feces from healthy donors were analysed before being transplanted into calves suffering from diarrhea in a process called fecal microbiota transplantation.

The compact, lightweight device generates electricity when shaken and can power 100 LEDs.

New research finds the extent of arterial occlusive disease in the popliteal artery correlates with the prognosis of peripheral arterial disease in lower limbs. The study of 31 patients who underwent percutaneous angioplasty of femoropopliteal artery (FPA) proved for the first time that ulcerated plaque observed in the FPA during angioscopy is the source of the thromboembolic mechanism in the popliteal artery.

An international team of researchers respond to criticisms on previous work that demonstrated Mirror Self-Recognition (MSR) in the cleaner fish Labroides dimidiatus, by 1) successfully repeating the mark test with a larger sample size, 2) showing the MSR behaviour to be the visual result of the mark not a physical response to it, and 3) showing that MSR-trained fish do not show aggression to spatially varied mirror images of themselves. Additionally, they further demonstrate potential self-awareness in L. dimidiatus by showing that they do not demonstrate MSR behaviour when visually presented with the mark on other fish and solidify the importance of ecologically relevant marks presented in previous work by showing MSR behaviour of L. dimidiatus with brown marks, meant to resemble a main food source of the fish, as opposed to no such behaviour in fish with green or blue marks.

This is a novel study that attempted to construct a pH-sensitive delivery system into T cells and their subsets using carboxy-terminal Phe- and CHex-modified dendrimers with different structures, i.e. PAMAM-CHex-Phe and PAMAM-Phe-CHex. The findings contribute to the development of nanoplatforms for direct delivery to T cells to control the functions of T cells, which play key roles in cancer immunotherapy. This is the first report on direct delivery into T cells using pH-sensitive DDS.

Simulations have led to the fabrication of a polymer-DNA gel that could be used in tissue regeneration and robotics.

Researchers at The University of Tokyo demonstrate the theoretically optimal search method for organisms that employ the “run-and-tumble” technique, and find that it conforms with observations of chemotaxis by E. coli, which may help automate drones

Through numerical simulations, a researcher details the discovery of a new isolated skyrmion with a half-integer topological quantum number in the ferromagnetic phase of the magnetic quantum fluid Bose-Einstein condensate (BEC). The new skyrmion is generated by applying a spin current to a magnetic domain wall and it has an eccentric (off-center) spin singularity inside it.

A new study on nematode worms reveals physical contact with objects can help prevent neuromuscular decline in simulated microgravity. The research provides new insights into maintaining human health in space.

Better understanding of regeneration in hemichordates may eventually lead to advances in reparative medicine

Research by Japanese scientists at Hiroshima University reveals a way to make ammonia from its constituent molecules of nitrogen and hydrogen at ambient pressure.

Advancement in cell lines capable of producing Hepatitis B’s many genotypes can reveal much about the unique virological features and treatment responses eluding researchers of this virus that has been infecting humans as far back as the Bronze Age.

With brain training games receiving much fanfare in recent years, scientists have been eager to explore their cognitive impacts. Now, a research group has developed a new brain training system that provides neurofeedback, allowing trainees to monitor their brain activity as they perform tasks.

Metals usually soften when they expand under heating, but a research team led by a City University of Hong Kong (CityU) scholar and other researchers have discovered a first-of-its-kind super-elastic alloy that can retain its stiffness even after being heated to 1,000K (about 727℃) or above, with nearly zero energy dissipation. The team believes that the alloy can be applied in manufacturing high-precision devices for space missions. The research team was led by Professor Yang Yong from CityU’s Department of Mechanical Engineering (MNE), together with his collaborators. The findings were published in the prestigious science journal Nature under the titled “A Highly Distorted Ultraelastic Chemically Complex Elinvar Alloy”.

An international research collaboration has discovered a potential new diagnostic marker for ulcerative colitis in a trans-ethnic analysis. The finding could lead to the development of a non-invasive, diagnostic blood test to both identify the disease and to determine progression in patients, according to the researchers.

Sea pineapples are a delicacy in Japan and the Tohoku region is renowned for its extensive sea pineapple industry. Soon they might not only be fueling our appetites, but helping power our future too. A research group demonstrated that the carbonization of cellulose nanofibers within sea pineapple shells produces high-quality carbon that, when mixed with blood waste from the livestock industry, boasts electrical performances similar to that of rare metals.

A large-scale study has found that simulation-based surgical training produced an increase of surgeons’ skills for more complex surgeries.

The size of benefits a company receives from bribing government officials is significantly correlated to the amount of bribe they pay, and how well informed people are in the bribe-taking country.

Rice has long been a staple food for more than half the global population. The United Nations even declared 2004 the International Year of Rice to raise awareness and encourage action to protect and advance the crop for a rapidly growing population. The genetic guidance rice uses to grow and reproduce, however, is still not fully understood. Now, a research team based in Japan is learning more, including how critical one gene is for the plant to develop grains of rice, which serve as both seeds and food.

Wastewater-based epidemiological tracking of COVID-19 in the Tokyo 2020 Olympic and Paralympic village showed that SARS-CoV-2 was present in areas without diagnosed individuals.

The Sanriku Coast - which includes present day Iwate and parts of Aomori and Miyagi - has been prone to tsunamis throughout its history. Analyses of tsunami deposits along the coast, however, haven’t always provided conclusive findings. Now, a research team has utilized a new radiocarbon dating method to clarify the region’s tsunami history and better understand the frequency at which these disasters occur.

Researchers from Institute of Industrial Science, The University of Tokyo find that the occurrence of red snow is closely tied to the length of the snow melt season and new snowfall events

A new study provides a theoretical basis for the influence of learning from ancestors on the acceleration of natural selection using Fisher’s fundamental theorem

Dinosaurs came to flourish during the Jurassic period after a volcanic eruption roughly 201 millions years ago wiped out many marine and land animals, leaving them able to evolve and grow. Now, further details about this eruption and the mass extinction have been revealed. A group of researchers demonstrated how low temperature magma slowly heated sedimentary rocks, causing high sulfur dioxide and low carbon dioxide emissions, a process which cooled the earth.

Garden soil houses a variety of bacteria and their natural byproducts — including one that may help halt tumor growth. Lankacidins are molecules that can be isolated from Strepomyces rochei, a common bacterium in soil. In addition to antimicrobial properties, a type of lankacidins, called lankacidin C, can inhibit tumor activity in various cancer cell lines, including leukemia, melanoma, ovarian and breast cancers. Lankacidin C offers a potential foundation on which to design anticancer drugs, but its structure is complicated and difficult to manipulate, according to an international research group. The same group recently identified where antitumor activity is housed on the molecule and has now used that information to simplify lankacidin as a potential starting point to engineer treatments.

Researchers have developed an innovative catalyst for the synthesis of propylene, which has potential benefits for the chemical industry and carbon recycling.

An international research group demonstrated that the Kondo effect can have a significant impact on transition metal oxide compound, which has unique and desirable properties to realize wide range of quantum phenomena. The findings have provided more evidence in a decade long debate.

Despite ongoing antagonism between the peoples of China, Japan and South Korea, support for regional cooperation on issues such as climate, pandemics and pollution exists if such cooperation mechanisms are mutually managed rather than dominated by any one nation.

An international team has developed an alumina short-wavelength absorber patterned with moth eye-like structures. These new anti-reflective structures will improve the performance of telescopes studying radiation from the Big Bang.

Accidental oil discharge into the river can lead to an environmental catastrophe, threatening the lives of countless aquatic animals as well as land animals that forms the ecosystem of the river. Preventing and containing many of the oil discharge is key to mitigating the severity of the catastrophe.