Results 71 to 80 of about 801,476 (308)
Seasonal Variation in Bromophenol Content of
Natural Product Communications, 2006 The bromophenol content of Polysiphonia lanosa , determined by GLC-MS, was shown to vary considerably between late spring and early autumn. The lowest content was found in material collected in early May and then the levels rose until a peak was reached ...
Nagwa A. Shoeib +5 more
doaj +1 more source
Seasonal variation in marine C:N:P stoichiometry: can the composition of seston explain stable Redfield ratios? [PDF]
, 2011 Seston is suspended particulate organic matter, comprising a mixture of autotrophic, heterotrophic and detrital material. Despite variable proportions of these components, marine seston often exhibits relatively small deviations from the Redfield ratio ...
DO, Hessen +5 more
core +1 more source
Plant Genetic Engineering: Technological Pathways, Application Scenarios, and Future Directions
Advanced Science, EarlyView.This review maps the fast‐evolving landscape of plant genetic engineering, linking enabling platforms with trait‐focused applications in architecture optimization, stress resilience, yield improvement, and quality enhancement. It highlights how genome editing, transgenic strategies, and emerging multi‐gene approaches reshape breeding pipelines, while ...
Peilin Wang +4 more
wiley +1 more source
PLoS Neglected Tropical Diseases, 2018 Dengue, chikungunya, and Zika virus epidemics transmitted by Aedes aegypti mosquitoes have recently (re)emerged and spread throughout the Americas, Southeast Asia, the Pacific Islands, and elsewhere.
John H Huber +3 more
doaj +1 more source
Adult Sex Ratio as a Demographic Feedback Linking Mating Systems, Parental Care, and Evolution
Advanced Science, EarlyView.Breeding systems are some of the most diverse social behavior, and our team is investigation the evolutionary causes of this diversity. This review summarises our research carried out at the University of Bath. We argue that demographic components of wild populations, especially the adult sex ratio, plays a key role driving breeding system variation ...
Tamás Székely, Oscar G. Miranda
wiley +1 more source
Engineering Microbial Particles for Next‐Generation Biomedical Platforms
Advanced Science, EarlyView.Microbe‐derived particles (MDPs), which include extracellular vesicles, outer membrane vesicles, inclusion bodies, polysaccharide particles, and virus‐like particles, represent a rapidly expanding category of bioinspired nanomaterials. With their natural origin, intrinsic biocompatibility, and highly programmable functionality, MDPs serve as a ...
Yuting Li +7 more
wiley +1 more source
Earth and Planetary PhysicsPhysical and chemical processes observed in the mesosphere and thermosphere above the Earth’s low latitudes are complex and highly interrelated to activity in the low-latitude ionosphere.
Fang Wu +8 more
doaj +1 more source
Calling phenology of four anurans in tropical Mexico
Revista Mexicana de Biodiversidad, 2020 Anuran vocalizations transmit relevant information that aids in individual recognition and sexual selection by females. When studied over time, vocalizations can help us to understand reproductive phenology.
Ricardo Figueroa-Huitrón +2 more
doaj +1 more source
Seasonal Solow residuals and Christmas: a case for labor hoarding and increasing returns [PDF]
In aggregate unadjusted data, measured Solow residuals exhibit large seasonal variations. Total Factor Productivity grows rapidly in the fourth quarter at an annual rate of 16 percent and regresses sharply in the first quarter at an annual rate of ?24 ...
Charles L. Evans, R. Anton Braun
core
Explanation of the Normal Winter Anomaly from the Seasonal Variation of Short Wave Absorption [PDF]
, 1984 The frequency dependence of the winter anomaly (WA) of radio wave absorption indicates the altitude range where the considered seasonal variation of absorption, L, takes place: 75-95 km.
Smirnova, N. V. +2 more
core +1 more source