Results 161 to 170 of about 35,773 (251)
A Cytoplasmic pH Sensor Redefines Gating in Bacterial Urea Channels and Acid Resistance
Small, EarlyView.Bacterial survival in acidic environments requires pH‐gated urea channels. Utilizing complementary approaches, we identify a conserved cytoplasmic glutamic acid residue as a pH sensor in UreI channels. Whereas Gram‐positive bacteria rely solely on this sensor, Gram‐negative bacteria employ a dual‐sensor mechanism with periplasmic residues, revealing a ...
Anna Stoib +10 more
wiley +1 more source
Scientific Investigation of Snakes
The image shows two men in suits examining what appear to be reptile specimens, likely snakes, in a laboratory setting.
core
Understanding Ecological Literacy Development Types in Elementary Students
Journal of Research in Science Teaching, EarlyView.ABSTRACT In recent decades, increasing environmental challenges have underscored the importance of ecological literacy. However, limited research has examined how it develops over time or why students exhibit different developmental patterns. This study addresses this gap by identifying patterns of ecological literacy development and examining how they
Si‐Hyun Park, Jae Geun Kim
wiley +1 more source
Shedding a light on the composition, toxicity and potential therapeutic strategies of internationally relevant ophidotoxins [PDF]
openAmong the four-thousand species of snakes currently known to taxonomists, around a fifth of them developed a peculiar hunting tactic based on injecting a toxic cocktail of compounds, generally referred to as “venom”, inside of their prey. This deadly
BASEI, NICO
core
Artemia salina Toxicity Assay: Standardization in a 24‐Well Microplate
Environmental Toxicology, EarlyView.ABSTRACT Bioassays with Artemia sp. are widely used in aquatic, environmental, and human toxicology as an initial tool to investigate the toxicity of plant extracts, isolated compounds, drugs, and products of natural or synthetic origin. These assays allow for the estimation of the median lethal concentration (LC50) and guide subsequent studies in ...
Matheus Pires Miranda +4 more
wiley +1 more source
VIEW, EarlyView.Low‐contrast capillaries are often missed or fragmented by segmentation models, so we developed a shallow four‐level starU‐Net that combines star operation‐based feature extraction with dynamic snake convolution‐based multi‐view fusion for improved thin vessel continuity.
Mengwei Bai +3 more
wiley +1 more source
Wildlife Biology, EarlyView.With urbanization reducing the amount of available wildlife habitat, and outdoor recreation increasing the human activity within wildlife habitats, it is important to understand the effects of human activity on animal behavior. This study examined how the reduction in human presence in urban parks in Gainesville, Florida, affected the temporal ...
Maya Fives, Matthew Hallett
wiley +1 more source
Estimating crippling loss from hunting with multistate models: a case study on northern bobwhites
Wildlife Biology, EarlyView.Hunting as a recreational pursuit provides an important ecosystem service worldwide. Harvest management plays a vital role in regulating wildlife take to ensure long‐term population sustainability and meet value‐based objectives (e.g. hunter satisfaction). However, managers rarely have complete control or observability of harvest mortality.
Amanda S. Cramer +10 more
wiley +1 more source
On the precipitins of snake antivenoms and snake antisera [PDF]
The Journal of Physiology, 1905 openaire +2 more sources
Wildlife Letters, EarlyView.We staged dyadic interaction trials between two kangaroo rat species threatened by habitat loss to test whether one species dominates in direct interactions in the field. We found that Stephens’ kangaroo rat (Dipodomys stephensi) residents and intruders were dominant over Dulzura kangaroo rat (Dipodomys simulans). These results suggest that D. simulans
Janine N. Straughan +2 more
wiley +1 more source