A novel bypass configuration eliminates temperature matching constraints, achieving energy flow field synergy and significantly improving efficiency. The system outperforms existing HDTRs, comparable to double-effect absorption refrigerators.
The discovery of 1.63-billion-year-old multicellular fossils from North China reveals that eukaryotes acquired simple multicellularity approximately 1.05 billion years ago. This finding supports the early appearance of the last eukaryotic common ancestor in the late Paleoproterozoic, consistent with molecular clock studies.
Researchers analyzed satellite galaxy motion around massive galaxy groups and found a notable excess of correlated pairs, suggesting recently accreted galaxies. This discrepancy with simulations implies that massive galaxy groups are younger in the real Universe.
The Shiyu discovery in Shanxi Province reveals an advanced material culture dating back 45,000 years, with evidence of blade technology and long-distance obsidian transfer. This finds sheds light on the ancient migration of Homo sapiens into East Asia around 45,000 years ago.
Researchers identified a key chromatin modifier-centered pathway for grain size regulation in rice, showing that HHC4 and bZIP23 interact and enhance grain size. Phosphorylation of HHC4 by TGW3 triggers negative influences on the pathway, leading to increased rice yield.
Brain pericytes play a crucial role in maintaining the integrity of the blood-brain barrier. A new study reveals that blood flow promotes their proliferation after entering the brain, relying on the activation of mechanosensitive ion channel Piezo1 in vascular endothelial cells and downstream Notch signaling.
Graphene quantum dots have been designed to enhance catalytic performance using a diatomic doping strategy, resulting in impressive peroxidase-mimicking activity. This metal-free nanozyme has shown high efficacy in inducing apoptosis and ferroptosis of cancer cells with minimal side effects.
Scientists have created a new generation of prime editors based on the Cas12a protein and circular RNAs, expanding the scope of precision genome editing. The new editors show high editing efficiencies and low off-target effects, paving the way for diverse applications in biological research, disease treatment, and crop breeding.
Researchers found that the Asian summer monsoon's strengthening played a key role in Homo sapiens' dispersal from Africa to East Asia during the last interglacial period. The study integrated paleoanthropological data with high-resolution reconstructions of the monsoon, suggesting a link between climate change and human migration.
Researchers developed a general A-site alloying strategy to prepare noble metal-occupied MAX phases, enabling the creation of over 100 materials with diverse compositions and crystal structures. These materials exhibit superior catalytic performance, particularly in alkaline hydrogen evolution reactions.
A recent study reveals that rare earth elements play a critical role in manufacturing low-carbon products. The researchers found a significant mismatch between supply and demand for heavy rare earths like dysprosium and terbium, but also highlight the potential of circular economy strategies to balance global REE supply.
A study published in Ecology Letters reveals that human population growth and land-use changes led to significant dietary shifts in large herbivores in eastern China. The researchers found that these herbivores adapted by altering their diets, with increased interspecific differences and expanded intraspecific dietary ranges.
The new intranasal mask, MV@GEL, intercepts viral aerosol particles with up to 93.2% effectiveness, providing broad protection against multiple viral variants. The mask's design uses positively charged hydrogel and cell-derived microsized vesicles featuring viral receptors.
A joint research team has reported the discovery of buried palaeo-polygonal terrain beneath Utopia Planitia on Mars using the Zhurong rover's radar. This finding suggests that ancient Mars experienced a cold polar region and significant climate changes.
The study reveals functional clustering in dendrites with significant egocentric tuning, suggesting the existence of specialized channels for processing egocentric information about boundaries. The researchers found that boundary-representing cells are largely independent of visual landmark-representing cells, contributing to our under...
Researchers have created a single-dose, dry-powder inhalable vaccine platform that induces broad-spectrum immune responses and expands vaccine protection. The platform's nano-micro composite structure enables efficient delivery to the lungs, promoting long-lasting immunity with just one inhalation.
The study reveals the critical role of 6mA in lipid accumulation in Nannochloropsis oceanica under high light conditions. Disruption of 6mA levels affects gene expression and biomass production, highlighting its importance in optimizing microalgae for industrial uses.
The discovery of two male mosquitoes from the Early Cretaceous period reveals that males likely fed on blood, contradicting previous assumptions. The findings provide new insights into the evolution of hematophagy and challenge current understanding of mosquito behavior.
Researchers found that orchid mantises' unique femoral lobes serve as structures for gliding, improving aerodynamics and reducing wing loading. The discovery reveals a new understanding of this insect's aerial escape mechanisms.
Scientists have discovered a molecular-type structure in the ground state of beryllium-10, a neutron-rich nucleus. The experiment used an inverse kinematics knockout reaction to validate the presence of this structure, which is exceptionally rare in atomic nuclei.
Researchers have observed a first-order structural transition in the impurity phase of cuprous sulfide, providing evidence that LK-99 is non-superconducting. This finding disproves previous claims of room temperature superconductivity and has significant implications for technology.
Researchers developed novel small molecule inhibitors of CPSF3, a key regulator of transcription termination in ovarian cancer cells. These inhibitors exhibited potent antiproliferative effects and suppressed tumor growth in vivo.
A study published in Nature reveals the molecular mechanism of methamphetamine binding to the trace amine receptor TAAR1, which plays a crucial role in modulating monoaminergic systems. The researchers used cryo-electron microscopy to determine high-resolution structures of the human TAAR1-Gs protein complex stimulated by methamphetamine.
Scientists have identified two genes, GmMOT1.1 and GmMOT1.2, that control natural variation in molybdate uptake and transport in soybeans. These genes are involved in molybdenum uptake in the roots and root-to-shoot transport of molybdenum, leading to improved molybdenum utilization and soybean yield.
Researchers developed a novel polycrystalline silicon tunnelling recombination layer that significantly enhances the efficiency of perovskite/tunnel oxide passivating contact tandem solar cells, achieving a remarkable 29.2% photoelectric conversion rate and high stability.
A team of scientists has detected signals directly from the smaller (secondary) black hole in the binary system of Blazar OJ 287. The discovery provides evidence for two separate signals contributing to the total light signal, confirming OJ 287 as an ultramassive binary black hole system.
A team of scientists has developed an AI chemist that can synthesize an oxygen-producing catalyst from Martian meteorites, enabling long-term survival on the planet. The breakthrough technology could establish an 'oxygen factory' on Mars, producing sufficient oxygen for human survival with minimal solar irradiation.
The discovery of a new early Jurassic dinosaur species, Qianlong shouhu, reveals that the first dinosaur egg was likely leathery and relatively small. The study also found that the transition in egg morphology occurred early in theropod dinosaur evolution.
Scientists successfully created a live-birth chimeric monkey with a high contribution of human embryonic stem cells, breaking the record for successful chimerism in nonhuman primates. The study showcases the potential for using ESCs to generate complex gene-modified models.
Researchers discovered that suberin lamellae evolved in the common ancestor of seed plants, enabling them to thrive in arid conditions. The unique structure enhances vascular water transport efficiency, promoting seed plant dominance.
Researchers create biphasic gel iontronics that mimic neural networks, enabling diverse ionic signal transmission. The system is capable of regulating cardiac electrical activity and converting electronic signals into bioionic signals.
Researchers have identified a unique bacterial transcription mechanism that enables specific recognition of promoters. This discovery has implications for the design of gene regulation tools and may inform synthetic biology engineering.
A recent study reveals that CAMSAP1 plays a crucial role in regulating the structure and dynamics of manchette microtubule minus-ends, impacting male fertility during spermiogenesis. The absence of CAMSAP1 leads to abnormal sperm development, including reduced sperm quantity, decreased motility, and male infertility.
Researchers discovered two extremely rare fossil lampreys from the Jurassic of northern China, shedding new light on lamprey evolution. The study revealed that these ancient creatures had a feeding apparatus strikingly similar to that of living pouched lampreys, which are flesh-eating species.
A novel gene therapy strategy has been developed to specifically target and activate the direct pathway in Parkinson's disease-affected neurons, leading to improved motor symptoms such as bradykinesia and tremor. The approach has shown faster onset and longer duration compared to traditional L-Dopa treatment.
A protein complex has been identified as crucial for regulating Casparian strip formation and lignin polymerization in plants, leading to improved water and nutrient utilization. The discovery provides a new target for biotechnological development of crop varieties.
Researchers from Chinese Academy of Sciences propose homogenizing strategy to fabricate perovskite films for solar cells. The process increases conversion efficiency to 26.1%, tying the existing record. The method uses an additive to make up for difference in crystallization and phase transition rates, resulting in long-term stability.
Researchers discovered that a massive anomaly deep within the Earth's interior may be a remnant of the collision that formed the Moon 4.5 billion years ago. The early Earth exhibited mantle stratification, with different compositions and states in the upper and lower mantle.
A recent study investigating the thermal response of temperate lakes to atmospheric warming found that local climate, land cover, geomorphology, and water transparency play significant roles in shaping lake responses. Clear, cold, and deep lakes are more responsive to warming, while those with nutrient pollution exhibit lower sensitivity.
The study reconstructs a nearly continuous record of marine oxygen levels through the Phanerozoic using a machine learning approach. Oxygen levels in deep continental shelf seawater were negatively correlated with the production rate of the oceanic crust over timescales of 10–100 million years.
Researchers have discovered a protostar leaving its birthplace using high-resolution molecular spectral lines. The study found the core to have a significant blue shift of -2.3 km/s relative to its parental cloud, indicating an escape velocity less than 4,000 years ago.
Researchers have incorporated molecular iodine into the SOCl2 battery electrolyte to increase discharge rate and enable efficient recharging. This breakthrough enables Li-SOCl2 batteries to be used in devices requiring low rates of energy discharge, increasing their practicality for routine energy storage.
Researchers improved biomass-related traits in sheepgrass using a custom genome editing system, revealing its potential for rapid genomic breeding. The study increased understanding of sheepgrass genomics and established a precedent for its genetic improvement.
A joint research team demonstrates that tectonics, not large climatic fluctuations, caused the emergence of the modern global monsoon from Pangea's megamonsoon. Continental area and fragmentation drive land-monsoon area and intensity respectively.
Researchers developed a novel 'pseudo cell' formulation using self-healing microcapsule-loading exosomes to treat diverse vitreoretinal diseases. The treatment demonstrated therapeutic benefits in both murine and nonhuman primate models, offering potential for improved patient compliance.
A novel method transforms wastewater pollutants into semiconductor biohybrids directly in the wastewater environment, producing valuable chemicals like 2,3-butanediol. The process exhibits scalability and a lower carbon footprint compared to traditional methods, making it an eco-friendly approach to chemical manufacturing.
A study published in Nature Human Behaviour has uncovered a neural pathway preferentially involved in pain perception across species. The researchers identified the central role of the medial-dorsal thalamic nucleus in pain perception, which exhibited a more pronounced activation in response to painful stimuli.
Researchers predict a shift from drying to wetting in the Himalayan region due to reduced anthropogenic aerosol emissions, with climate model simulations suggesting increased precipitation throughout High Mountain Asia by the 2040s. This change is primarily driven by human-induced factors, rather than natural variability.
Researchers discovered early Cambrian microfossils preserving introvert musculature of cycloneuralians, a group of animals that include roundworms and horsehair worms. The preserved musculature consists of four groups of muscles, differing from basal animals in terms of topology.
Researchers developed an integrated microfluidic chip for rapid antimicrobial susceptibility testing from positive blood cultures, reducing diagnosis time to under 3.5 hours. The chip demonstrated high accuracy in diagnosing clinical cases with a 93.3% agreement rate.