Scientific Reports


28 Feb 2024
Organic materials discovered on Mars may have originated from atmospheric formaldehyde, according to new research, marking a step forward in our understanding of the possibility of past life on the Red Planet.
14 Feb 2024
Researchers from Osaka University have found that gargling with an antiseptic mouthwash can reduce so-called ‘bad’ bacteria in the mouths of patients with type 2 diabetes. Notably, this reduction in bacteria was accompanied by improved blood-sugar control in some patients. Given that the oral diseases caused by these bacteria have been linked to many other serious inflammation-associated diseases, such as cardiovascular disease and Alzheimer’s disease, this simple treatment may have widespread effects.
13 Feb 2024
Researchers including Kavli IPMU have used equipment originally intended for astronomy observation to capture transformations in the nuclear structure of atomic nuclei, reports a study in Scientific Reports.
Depiction of europium complexes changing structure upon interacting with a tumor cell. (Mengfei Wang, et al. Scientific Reports. January 22, 2024)
22 Jan 2024
A water-soluble, luminescent europium complex enables evaluation of malignancy grade in model glioma tumor cells.
12 Jan 2024
Much is known about the added complication to pregnancy when it comes to the age of the mother, but recent studies show that the age of the father can also heighten the risk of neurodevelopmental disorders. A team of researchers has explored the impacts of paternal aging on microRNAs, the molecules that play a crucial role in regulating gene expression.
11 Jan 2024
Researchers at the Institute of Industrial Science, The University of Tokyo create customizable polymer molds to produce cost-effective arrays of microneedles that can be used to uniquely identify pets with alphanumeric symbols instead of tags or collars.
25 Dec 2023
Kavli IPMU researchers are part of a team that has shown it is possible to image small animal tissue clearly to several hundred micrometers using multi-probe imaging.
07 Nov 2023
Microscopes usually use backscattered radiation to create images, but a research group from the Institute of Industrial Science, The University of Tokyo, is developing an all-new method to study materials using the faint light they emit, generated by heat
12 Oct 2023
Osaka Metropolitan University scientists, in cooperation with researchers from the National Astronomical Observatory of Japan, have captured cosmic-ray extensive air showers with unprecedented precision using the prime-focus wide field camera mounted on the Subaru Telescope, situated atop Mauna Kea in Hawaii. Analyzing approximately 17,000 images captured between 2014 and 2020, they pinpointed 13 images containing extensive air showers, with a number of particle tracks far exceeding the usual count.
02 Oct 2023
The annual burning of crop residue in India causes widespread air pollution, particularly in the northwestern regions. A group of international researchers has used low-cost yet reliable instruments to gauge the effects of air pollution in these areas, making it the first quantitative study of its kind.
Reanalysis of studies on night shift naps reveals the ideal snoozing schedule
15 Sep 2023
A reanalysis of studies on night shift naps reveals the ideal snoozing schedule that may help combat fatigue and drowsiness when staying up all night.
A well-preserved fossilized forest from the late Miocene epoch was found in Japan, near the Ota bridge on the Kiso river. (Photo: Toshihiro Yamada)
21 Jul 2023
An exquisitely preserved fossil forest from Japan provides missing links and helps reconstruct a whole Eurasia plant from the late Miocene epoch.
27 Jun 2023
Researchers from the Institute of Industrial Science (The University of Tokyo) have developed a high-resolution method for climate model simulation.
Damage to the liver induced by acetaminophen (dotted blue outlines) is almost completely mitigated by CoQ10-MITO-Porter (right), compared to the effect of phosphate buffered saline (left) and direct administration of CoQ10(center). (Mitsue Hibino, et al. Scientific Reports. May 10, 2023).
10 May 2023
A new drug delivery system delivers an antioxidant directly to mitochondria in the liver, mitigating the effects of oxidative stress.
Map of the eight Arctic marine areas included in the study (Irene D. Alabia, et al. Scientific Reports. March 11, 2023).
04 Apr 2023
Marine predators have expanded their ranges into the Arctic waters over the last twenty years, driven by climate change and associated increases in productivity.
Using heated tobacco product makes severe COVID-19 more likely
23 Mar 2023
A research group from Osaka Metropolitan University investigated the relationship between tobacco use, including heated tobacco products, with the risk of SARS-CoV-2 infection and severe COVID-19. The researchers administered an online survey of living conditions in February 2022 to 30,130 participants aged 16-81 years, finding that heated tobacco product users had significantly higher rates of SARS-CoV-2 infection compared to non-tobacco users. Furthermore, the research group found that among all tobacco users, those who used both heated tobacco products and traditional cigarettes had the highest incidence of requiring hospitalization or oxygen due to COVID-19.
10 Mar 2023
Tohoku University researchers have discovered that softer gums hinder the development of gingiva fibroblasts – the cells that help produce the fibers that hold our teeth in place.
Covid-19 vaccines and syringe
07 Mar 2023
Researchers in Sarawak, Malaysia, measured the immunity responses of people who received different COVID-19 vaccines.
Hiroshima University Brain, Mind and Kansei Science research on depression and low trust
01 Mar 2023
Brain shrinkage patterns tied to low trust have links to depression vulnerability that can alert to its early detection even before symptoms appear.
More than half of patients suffer long COVID symptoms
24 Feb 2023
A research group from the Osaka Metropolitan University Graduate School of Medicine conducted a survey of 285 patients regarding the long-term aftereffects of COVID-19. As a result, they revealed that more than half of COVID-19 patients still had residual symptoms, even close to a year afterward. It became clear that fatigue, abnormalities in senses of taste and smell, hair loss, and sleep disorders could persist, regardless of the severity of the initial COVID-19.
 Photograph of the semitransparent hydrogel used in this study. (Satoshi Tanikawa, et al. Scientific Reports. February 14, 2023)
24 Feb 2023
Synthetic hydrogels were shown to provide an effective scaffold for neuronal tissue growth in areas of brain damage, providing a possible approach for brain tissue reconstruction.
15 Feb 2023
To clarify the mechanism of serial dependence in number perception, a research team from Osaka Metropolitan University conducted two tests, independently asking subjects to estimate the number of coins, or to estimate the value of those coins, shown on-screen for half a second. The results showed that serial dependence was confirmed in both tasks and that the most significant effect on serial dependence was not caused by the last stimuli, but the subjects last response. These results indicate that higher-order cognitive processing has a greater influence on the occurrence of serial dependence.
13 Feb 2023
Team studies discrimination, mental distress, and work impairment in COVID-19 survivors.
08 Dec 2022
Reef corals provide an accurate, high-resolution record of the influence of the El Niño Southern Oscillation on rainfall, flooding and droughts in the Mekong River Delta, Vietnam.
07 Dec 2022
Magnetic nozzle plasma thrusters are thought of as the future of space travel. But one problem has hampered their development – plasma detachment. A recent study has shown that spontaneously excited plasma waves help magnetic nozzles overcome the plasma detachment problem, a rare instance of plasma instabilities having a positive effect on engineering.
11 Nov 2022
Space missions already use electric propulsion devices, where electromagnetic fields are utilized to generate the thrust of spacecraft. One such electrodeless device, which harnesses radio frequency (rf) to generate plasma and a magnetic nozzle (MN) to channel and accelerate plasma, has shown immense promise in pushing the boundaries of space travel. But scientists have so far failed to achieve efficient conversion of the rf power to thrust energy. Now, a Tohoku University researcher has achieved a 30% conversion efficiency, the biggest rate to date.
26 Oct 2022
Plastic sheets coated with an Eu3+ film that converts UV light to red light were able to accelerate growth of vegetal plants and trees.
06 Oct 2022
Low concentrations of cetylpyridinium chloride, an antimicrobial agent present in mouthwashes, inhibit the infectivity of four variants of SARS-CoV-2.
27 Sep 2022
Osaka University researchers showed how to use laser beam interference to construct chiral structures. By using computer simulations, they were able to predict the final light pattern and optical radiation force distribution of any collection of light sources. This work may lead to cheaper optical devices and sensors.
Demonstrating embodied cognition
13 Sep 2022
Demonstration of embodied cognition mechanisms in the brain could have implications for artificial intelligence.


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