Researchers discovered that LMI1 protein limits cell growth, preventing large cells from developing into other tissue types, resulting in smaller leaves despite early cell growth. The study also found that LMI1 regulates pea leaf morphology by producing thread-like tendrils at the tip of the leaf and large stipules at the base.
Researchers at Nara Institute of Science and Technology discovered that shootin 1b is essential for neuron migration to the olfactory bulb, which affects brain development and adaptation. The study reveals how shootin 1b mediates a mechanical clutch to generate force for neuronal movement.
A study by Uppsala University found that sperm quality varies depending on a male's characteristics, such as attractiveness and age. For less dominant males, longer sperm is beneficial for fertilization success, while more attractive males benefit from smaller sperm.
A team of researchers has discovered a new species of Placozoa, a phylum of simple multicellular animals, by analyzing its genetic makeup. The study, published in PLOS Biology, used taxogenomics to describe the new species, which was previously thought to be a single species, Trichoplax adhaerens.
Dr. Bedewy will explore the kinetics of activation and deactivation in large populations of carbon nanotubes known as 'nanotube forests' using experimental and modeling techniques. The research aims to gain a fundamental understanding of how these forest structures behave collectively, impacting their properties for emerging applications.
Researchers at Kumamoto University have identified a new mechanism linking cytoskeletal dynamics and Wnt5a signaling, essential for planar cell polarity formation. This control system regulates the morphology and orientation of cells in animal tissues, crucial for tissue morphogenesis.
A new species of dogfish shark, Genie's Dogfish (Squalus clarkae), has been discovered in the Gulf of Mexico and western Atlantic Ocean. The species was identified through genetic testing and morphology, and is named after Eugenie Clark, a pioneering female shark biologist.
A randomized trial found that a 14-week nut-rich diet significantly improved sperm quality, including increased count, vitality, and motility. The study also showed a reduction in sperm DNA fragmentation, associated with better male fertility.
Researchers used CRISPR/Cas9 to tweak wing colors of the squinting bush brown butterfly, resulting in changes to scale structure and rigidity. The study reveals that pigmentation genes have dual roles in forming wing scales.
A large US clinical trial found that an antioxidant supplement taken daily by the male partner for three months made no difference to sperm concentration, motility, or morphology. The study also showed no significant differences in natural conception rates between the antioxidant and placebo groups.
A study using high-resolution MRI found that domesticated rabbits have reduced amygdala size and enlarged medial prefrontal cortex compared to wild rabbits. This led to a diminished flight response and slower reaction time, as the brain's white matter structure was also compromised.
Graphene's high strength is accompanied by ultra-low bending rigidity, leading to rich morphology control. The scientists review the mechanics of defects in graphene and outline challenges for nanomechanics research.
Homo naledi had a small endocranial volume, suggesting a small brain compared to other Homo species. The study found occipital lobe asymmetry and lunate sulcus morphology similar to that seen in modern humans.
Researchers analyzed inner ear structure in humans from diverse populations, finding variation within populations greater than between them. The shape of the labyrinth correlates with dispersal distance from Africa, providing insights into human migration history and population movements within continents.
A study examined human ancestors' walking and climbing capabilities, revealing that humans' straight-legged gait provides improved walking economy but also allows for enhanced hip extension. This enabled early hominins like Ardipithecus ramidus to develop a balance between improved walking economy and climbing ability.
Researchers analyzed 221 skeletal specimens to examine the correlation between inner ear morphology and genetic markers reflecting human dispersal from Africa. The study found that labyrinth morphology corresponds with dispersal patterns, offering a new avenue for individual-based genotype and phenotype comparisons.
The researchers fabricated super-repellent films with a water contact angle of 166° using modified anisotropic silica particles. The films demonstrated excellent mechanical robustness, maintaining their hydrophobicity even after 100 cycles of abrasion or acid/base attack.
Researchers discovered a new mode of drinking in mosquitoes, allowing for burst feeding and generating low-pressure vacuum on demand. The findings have significant implications for understanding mosquito morphology and potentially developing targeted drug therapy.
The researchers developed a label-free multimodal microscopy platform that allows non-invasive study of cellular preparations. The platform enables the study of fine cellular processes, such as macrophage cells activation upon exposure to lipopolysaccharide (LPS), at single-cell level through phenotypic and molecular characterization.
Researchers developed a mathematical approach to predict crease formation in soft solids, enabling on-demand control of adaptive surface morphology. This breakthrough enables the design and fabrication of morphable materials for stretchable electronics, self-foldable machines, and lab-on-a-chip devices.
Researchers will use machine learning to analyze language patterns and morphology in low-resource languages like Tagalog and Swahili. The system aims to provide English summaries explaining how documents are relevant to the query.
Researchers at the Donald Danforth Plant Science Center have discovered a genetic mechanism that controls developmental traits related to grain production in cereals. The study found that precise regulation of plant hormones, specifically brassinosteroids, can modulate growth and differentiation of unique inflorescence morphology.
A new device, SPARTAN, uses an obstacle course to select the fastest and healthiest sperm cells for use in IVF treatment. The device can reduce IVF treatment cycles and potentially increase pregnancy rates by selecting sperm with excellent motility, normal morphology, and better DNA integrity.
The authors propose a scalable and cost-effective preparation protocol for low-dimensional polyion complex nanomaterials with tunable morphologies. The protocol, called PIESA, enables the synthesis of biorelevant nanostructures with controllable shape and charge state.
Researchers from Princeton University and Uppsala University report the origin of a new lineage of Darwin's finches through hybridization between two distinct species. The study reveals that reproductive isolation was established in just two generations, with the new lineage becoming ecologically competitive and unique.
DFNS has been used in various applications including photocatalysis, solar cells, energy storage, CO2 capture, biomedical applications and environmental remediation. Its unique fibrous morphology provides enhanced accessibility to active sites and improved light harvesting properties.
Scientists from Moscow State University have discovered the evolutionary pathways of groups of invertebrates with specific tentacular apparatus - the lophophore. The study reveals that lophophorates are the closest relatives, with a common ancestral morphology.
Researchers analyzed nasal morphologies to infer Neanderthal soft tissue, finding that cold-adapted nasal configurations evolved independently in both species. Computational fluid dynamics simulations showed faster air warming and humidification rates in Neanderthals compared to modern humans.
This study investigates the early stages of antibacterial damage caused by Silver and Copper-based nanoparticles on Gram-negative Pseudomonas aeruginosa. TEM and STEM-HAADF techniques reveal changes in bacterial structure, including adhesion, penetration, and damage to cellular components.
Researchers prepared porous MoS2 with high specific surface area using APTES-modified SiO2 hard template and different sulfur sources. The resulting materials exhibited good performance in hydrodeoxygenation (HDO) of bio-oil, a promising route for upgrading this liquid fuel.
Geckos using narrower perches exhibit longer limbs compared to those on wider perches, contrary to previous assumptions. This finding suggests a different adaptation strategy for geckos, potentially due to greater frictional and adhesive forces that enable them to cling to narrow perches effectively.
Researchers have developed multifunctional nano-sized drug carriers based on reactive polypept(o)ides, which can be manipulated to control their morphology and function. These carriers exhibit stable circulation behavior and show promise for immunotherapy of malignant melanoma.
Researchers found modest changes in skull morphology for groups consuming cereals, dairy, or both, but differences were small compared to other factors like gender and population variation.
A new extinct bird species, Pyrrhula crassa, has been discovered on Graciosa Island in the Azores archipelago. The species went extinct due to human colonization and introduction of invasive species. Its unique beak morphology suggests it was a large bullfinch species.
Researchers used X-ray Reconstruction of Moving Morphology (XROMM) technology to observe bamboo sharks feeding on squid and herring. The study reveals that the shark's shoulder girdle swings internally to create suction, manipulating food down its long pharynx.
Researchers found that a mutation causing an inversion on the Z chromosome increases sperm velocity and morphology, leading to higher fertilization rates and reproductive success. This study provides insight into the evolutionary mechanisms underlying infertility in zebra finches.
Researchers discovered ancient plankton-like microfossils in South African and Australian rocks, dating back 3.4 billion years. The fossils' unique morphology and carbon isotope values suggest they had planktonic stages in their life cycles.
Researchers used 3-D genetic sequencing data to study the evolution of wheat from wild tetraploid wheat (Triticum turgidum) to domesticated wheat. They found two gene clusters that lost their function, leading to changes in spike morphology and grain development.
Researchers found that a single docking site uses a single cluster of calcium channels and that both numbers change with brain age, establishing the first clear link between morphology and function of docking sites.
The study reveals that bioelectric patterns can override the default body shape called for by a genome, allowing researchers to edit the target morphology of an animal with a wild-type genomic sequence. This work provides clues about why certain individuals have different biological outcomes when exposed to the same treatment as others.
Researchers developed a bimodal AFM approach to probe materials in three dimensions simultaneously, providing new insights into surface morphology and chemical reactions. The technique enables the measurement of forces in X, Y, and Z directions on the subatomic scale.
EPFL scientists have found that light plays a crucial role in controlling the morphology of perovskite crystals, leading to improved photovoltaic performance. The study reveals that the presence of light accelerates the formation of perovskites and enhances crystal growth.
New animal research suggests that consuming walnuts can improve sperm motility and morphology in mice, key predictors of male fertility. Walnuts are predominantly comprised of polyunsaturated fatty acids (PUFAs), which may be essential for sperm function.
New study suggests that ancient humans entered South America in at least two waves of population dispersals from Asia. The findings, published in Science Advances, rely on a pioneering method to analyze cranial morphology and contemporary genomic data, providing new insights into the complex narrative of human migration.
A small crocodile from the Upper Jurassic Langenberg Quarry in Germany has been identified as a potential new species, Knoetschkesuchus langenbergensis. The fossilized remains exhibit unique features such as openings in the jaw bone and tooth morphology.
A new species of extinct otter, Siamogale melilutra, has been discovered in China with a body size comparable to that of a wolf. The discovery provides insights into the evolutionary history and functional morphology of this ancient lineage.
The discovery of Siamogale melilutra, a 3 times larger than modern otters, reveals insights into the evolutionary history and functional morphology of this new species. The fossil's characteristics suggest adaptations for eating large shellfish and freshwater mollusks.
A new study by the American Museum of Natural History estimates that there are approximately 18,000 bird species worldwide, nearly twice as many as previously thought. The researchers used a combination of morphology and genetic studies to highlight birds with separate evolutionary histories.
Rice University scientists have decoded the kinetic properties of cement and developed a way to 'program' microscopic particles to create less porous and more durable material. This technique may lead to stronger structures that require less concrete, reducing greenhouse gas emissions.
Ernst Haeckel's groundbreaking work in 1866 introduced the concept of monophyly and natural selection in speciation, illustrating the evolutionary history of organisms as a tree of life. This innovative method has remained unchanged for over 150 years, with its principle being widely adopted to represent biodiversity.
Plant biologists at ITbM, Nagoya University, have made a key discovery that the contents in pollen tubes alone can increase the size of seeds, without the need for fertilization. This new plant phenomenon, named as POEM (pollen tube-dependent ovule enlargement morphology), shows that even in the absence of fertilization, release of the...
Researchers identified a characteristic feature of oligodendrocyte myelination, which selectively targets axons from specific brain regions. This discovery may provide insights into neurological disorders like multiple sclerosis and suggest new avenues for understanding higher brain function.
The Pitt Urology Department has been awarded $7.7 million to investigate BPH and LUTS, aiming to develop novel preventative and therapeutic approaches. The center will focus on inflammation involved in these conditions.
Harvard researchers have developed a new technique to produce tunable nanofibers, which could lead to stronger, more durable bulletproof vests and more robust cellular scaffolding for tissue repair. The method uses immersion Rotary Jet-Spinning (iRJS) to create fibers with controlled diameter and morphology.
Researchers at Lund University found that larger flocks of birds travel significantly faster than smaller ones, with wind direction and turbulence playing a crucial role. This discovery provides new understanding of the complex factors influencing bird flight speeds.
A study published in PLOS ONE identifies three new cryptic species within the Tegu lizard family, including subtle differences in leg scale morphology and substantial genetic divergence. The discovery may aid conservation efforts for these heavily exploited species.
Researchers have developed a systematic approach to studying monkey morphology, syntax, and semantics using methods from theoretical titi monkeys linguistics. This allows them to compare one monkey species to another and analyze the meanings of their calls in detail, revealing complex formal properties and syntax.
Researchers built a gene expression database of a stag beetle species and identified key genes involved in sex determination and differentiation. The study found that the intersex gene plays a crucial role in determining female-specific traits, while the transformer-2 gene affects more than just sex-specific characteristics.
POSTECH researchers developed an organic nanofiber-based artificial synapse that emulates both important functions and energy consumption of biological synapses. The device enables high memory density and low energy consumption, potentially leading to advancements in AI computing and neuromorphic electronics.
A recent study found that 72% of children have S. mutans strains not found in family members, suggesting external transmission from other children or population sources. Children can share strains with siblings or cousins, highlighting another dimension to inter-familial transmission.