Researchers at Hokkaido University have developed a one-pot-and-one-step synthesis procedure to create long and geometrically interlinked polymer molecules. This process can produce a wide range of advanced materials with applications in drug delivery, data storage, microelectronics, and nanolithography.
Researchers at Hokkaido University have discovered the importance of Frazil ice in producing dense cold water, which is a key component of global ocean circulation. This finding has significant implications for understanding the impact of global warming on this process.
Researchers developed a groundbreaking model to estimate bait vaccination effectiveness in wild animals by analyzing the proportion of immunized animals and vaccine applications. The study successfully tested the model using real data from Japan's CSF outbreak, demonstrating a measurable increase in immunized wild boars.
A team of scientists has found that small sulfate aerosols in the 1970s may have counteracted the effects of global warming by forming clouds that reflect radiation. The study reconstructed particle sizes from Greenland ice cores, showing a higher concentration of small sulfates during this period.
Researchers at Hokkaido University have developed a new material called ITZO, which promises to be up to seven times faster than current state-of-the-art materials. By understanding the unique properties of this material, scientists can design more efficient display technologies for ultra-high resolution displays.
A recent study published in Journal of Biological Rhythms found no association between the time of day when COVID-19 vaccine was received and antibody response. The researchers recruited 332 Japanese participants and measured antibody titers against SARS-CoV-2, with age-specific decreases observed.
Researchers at Hokkaido University have developed a biosensing technology to detect amyloid β build-up in the brain from biomarkers in blood samples. The Digital ICA TM technology can detect Aβ-binding exosomes in mice, increasing with age and disease progression.
A study by Hokkaido University researchers found that low concentrations of cetylpyridinium chloride in mouthwash can inhibit SARS-CoV-2 infectivity and viral load, regardless of variant. This antiviral effect is thought to be due to disruption of the lipid membrane surrounding the virus.
Researchers from Hokkaido University used satellite images to observe the sudden drainage of proglacial lake Lago Greve in Chilean Patagonia, resulting in a 18-meter drop in water level and a loss of 3.7 cubic kilometers of water. The study suggests that the cause was the collapse of a sediment bump at the lake's outlet, highlighting t...
A new method, EPISENS-S, has been developed to measure SARS-CoV-2 in wastewater with high sensitivity. This allows for the estimation of COVID-19 prevalence, including asymptomatic cases. The method was found to be approximately 100 times more sensitive than existing methods.
Researchers at Hokkaido University have developed a new catalyst that uses carbon dioxide to produce propylene more efficiently than existing methods. The catalyst also captures and converts carbon dioxide into useful resources. This breakthrough contributes to the carbon neutralization of the petrochemical industry.
Long-term monitoring data reveals previously undetected diurnal patterns in narwhal behavior, including changes in surface activity and diving patterns influenced by sea ice and squid migration. The study's method can be applied to assess the challenges faced by narwhals and other Arctic animals due to climate change.
A study by Hokkaido University researchers found a significant increase in suicide rates among women and younger age groups during the COVID-19 pandemic in Japan. Excess suicide deaths for men and women were recorded, with sub-group analyses revealing a positive correlation between increased mortality and specific age ranges.
Scientists at Hokkaido University have quantified glacier mass loss on Kamchatka Peninsula, revealing a total ice loss of 4.9 billion tons between 2000 and 2016. Rising temperatures are driving this change, which contributes to global sea level rise.
A study by Hokkaido University scientists found a close association between clinical cases of COVID-19 and viral loads in wastewater, with the viral loads picking up to two days before the cases were detected. The researchers used wastewater-based epidemiology to track the spread of SARS-CoV-2 in the Tokyo 2020 Olympics and Paralympics.
Researchers at Hokkaido University propose two novel hypotheses to address the 'two-fold cost of sex' in sexual reproduction. The first hypothesis suggests that meiosis eliminates harmful mutations through a process known as the 'seesaw effect.' The second hypothesis proposes that anisogamy evolved through 'inflated isogamy,' where lar...
Scientists have connected two soft crystals and observed energy transfer between them, leading to the potential development of sophisticated materials. The study used rare earth metals called lanthanides, which can luminesce, to create a molecular train that exhibited green luminescence at one end and yellow luminescence at the other.
Researchers at Hokkaido University used computer simulations to discover a reaction that selectively adds two fluorine atoms to a difficult-to-access position on an N-heterocycle. The successful synthesis of 48 new compounds with unique alpha position fluorine substitutions has significant potential for novel drug development.
A team of scientists developed a computational model that explains Italy's town distribution using only a small set of mathematical equations and a map of the landscape. The model simulates how population and road networks interact, demonstrating that landscape alone is insufficient to explain population distribution.
A team of researchers has discovered that malignant tumors accumulate lipid delivery molecules called LDL and attract immune suppressor cells called neutrophils, leading to tumor progression. The study also shows that targeting the LOX-1/oxidized LDL axis may be a promising strategy for treating both cancer and cardiovascular disease.
A team of researchers at Hokkaido University has developed a barium cobalt oxide thermoelectric converter that is reproducibly stable and efficient at temperatures as high as 600°C. This breakthrough material shows promise for wide deployment in high-temperature thermoelectric conversion devices.
Researchers at Hokkaido University have discovered a molecular pathway by which stress affects lupus, revealing a potential target for treatment. The study found that sleep deprivation caused the activation of microglial cells in the brain, leading to increased levels of IL12 and IL23, a diagnostic marker for neuropsychiatric SLE.
Researchers at Hokkaido University identified over 1,300 types of ceramides in the top layer of human skin, including their chain lengths and fatty acid compositions. The discovery could improve understanding of skin barrier function and disease pathology.
Researchers found that transparent face masks facilitate communication by not occluding facial expressions, unlike surgical masks. The study used digital images and showed that transparent masks did not disrupt the perception of facial emotions in both male and female faces.
Scientists have analyzed whole genome sequences of 98 wild house mice from across Europe and Asia, revealing a greater genetic diversity than previously thought. The study confirms three primary subspecies and infers the population history, with strong evidence for interbreeding between subspecies in East, Southeast, and South Asia.
Researchers at Hokkaido University identified two deubiquitinating enzymes, UBP12 and UBP13, that stabilize the brassinosteroid receptor BRI1 in plant cells. This finding reveals a crucial role for these enzymes in regulating plant growth and development.
Scientists have described a new species of therizinosaurid from Japan, shedding light on the function and evolution of their fearsome claws. The discovery indicates that therizinosaurs existed in Asia over a longer timescale than previously known and were adapted to coastal environments.
Researchers at Hokkaido University discovered that ATP secreted from sensory neuron-interneuron crosstalk triggers inflammation spread across joints, acting as a neurotransmitter and inflammation enhancer. Blocking this pathway prevents the spread of inflammation.
Chronic pain causes maladaptive emotional states and is often comorbid with psychiatric disorders. Researchers identified the neuronal circuit involved in chronic pain-induced anxiety in mice, finding that restoring its activity attenuates anxiety.
A new method predicts the starting materials and reaction paths of multi-step chemical reactions using only information about the target product molecule. The algorithm reduces the number of paths to explore, mitigating the combinatorial explosion that occurs in single-step reactions.
Researchers developed micro-sized machines utilizing swarming strategy for cargo delivery, outperforming single robots with efficiency of up to five times. The team created a swarm of cooperating robots that can divide workload and respond to risks, expanding potential uses for microrobots.
Researchers at Hokkaido University found that trimethylamine N-oxide (TMAO) can reversibly control the rigidity of kinesin-propelled microtubules, a crucial component of molecular machines. The study demonstrates a simple method to dynamically adjust MT property and functions.
Researchers at Hokkaido University found that cooler summer temperatures across Greenland are triggered by changes in the El Niño climate pattern in the Pacific Ocean. This discovery will help improve future predictions of Arctic ice sheet and sea ice melting.
Hokkaido University scientists have identified CDK6 as a promising target for treating adult T-cell leukemia/lymphoma (ATLL) with the drug palbociclib. The combination of palbociclib with everolimus also showed significant tumor growth reduction and minimal side effects in mice models.
Scientists have found argon trapped in ice cores from Greenland and Antarctica, which can be used to reconstruct past climate changes and temperature shifts. The discovery could improve our understanding of the Earth's atmosphere and climate over hundreds of thousands of years.
Researchers predict Greenland ice sheet will lose up to 3.54 meters of sea level equivalent by 3000, under unabated warming conditions. In contrast, reduced emissions pathway may see a loss of only 0.16-0.4 meters sea-level equivalent.
A new virtual ligand-assisted screening method enables efficient searching of ligands for optimal catalysis, accelerating reaction design. By simplifying ligand description with two metrics, researchers identify promising ligands and focus on real testing.
A new study predicts that six tropical fish species in Japan will expand northward due to rising sea temperatures. The model found that minimum sea surface temperature is the most important factor affecting distribution patterns for all species, with potential habitat range changes minimised by stringent mitigation measures.
Scientists at Hokkaido University developed a prototype sensor to rapidly measure adenosine triphosphate (ATP) and lactate levels in blood samples. The sensor's sensitivity allows for the accurate detection of these molecules, enabling rapid assessment of disease severity.
Scientists at Hokkaido University have developed an electrochemical method to recycle waste CO2 while producing molecules useful for drug development. The method utilizes an electron added to either the CO2 molecule or another molecule in the solution, making it easier to react with each other.
Researchers at Hokkaido University have developed a tuneable, elastic and temperature-sensitive gel by using complementary DNA strands to connect star-shaped polymer molecules together. The gel exhibits predictable behavior, self-healing properties and durability suitable for medical and engineering applications.
A large-scale study found that simulation-based surgical training increased surgeons' skills for complex surgeries, with fewer total complications and ureteric injuries. Simulation training led to higher overall proficiency scores and fewer procedures required to achieve proficiency in complex surgeries.
A team of researchers used wastewater-based epidemiology to detect SARS-CoV-2 in more areas of the Olympic village than clinical testing indicated. The study found that daily screenings missed asymptomatic and post-quarantine patients, highlighting the need for alternative methods.
Researchers at Hokkaido University have developed a novel catalyst that significantly improves the efficiency of propylene production. The catalyst utilizes carbon dioxide efficiently and exhibits high selectivity, stability, and long-term reusability.
A 100-million-year-old cockroach fossil provides insights into its sensory organs, which suggest the species lived in bright environments during the day. The study found that the extinct species had well-developed eyes and a unique pattern of receptors on its antenna, indicating it may have used these to communicate between sexes.
Researchers from Hokkaido University have proposed a framework to clarify the distinction between genetically modified organisms (GMOs) and genome-edited organisms (GEOs). The framework considers scientific, ethical, and social factors to determine whether an organism is a GMO or GEO. The proposal aims to enhance regulatory reliability...
Researchers at Hokkaido University have developed a new method for creating chemical subunits using blue LEDs and copper, reducing the need for precious metals. This breakthrough has potential applications in pharmaceutical and photoelectronic development.
Scientists predict that continued global warming could lead to a five-meter sea level rise by 3000 CE, making large areas uninhabitable without extensive modification. The Antarctic ice sheet's collapse, driven by West Antarctica's grounding on a bed below sea level, is the primary reason for this decay.
Researchers at Hokkaido University and Texas A¼M University identified a key mechanism used by SARS-CoV-2 to evade host immune systems, targeting the MHC class I pathway. The study found that the virus suppresses the activation of this pathway using the ORF6 protein, allowing it to persist in the body and infect others.
Researchers at Hokkaido University analyzed hundreds of women with ovarian granulosa cell tumors to improve understanding of the disease progression and response to therapy. They found that early-stage tumors rarely spread beyond the ovaries, and fertility-sparing surgery may be considered for younger patients.