Results 51 to 60 of about 9,259 (217)

Photometric Observations of Visual Double Stars by the Area Scanning Technique [PDF]

open access: yesInternational Astronomical Union Colloquium, 1965
AbstractUBV magnitude differences in visual binaries are presented and their accuracy is discussed. Typical observed image profiles of double stars, including sample profiles of Antares, are shown. This contribution will appear jointly with the earlier one (p. 20) in Lowell Obs. Bull., No. 154. The work has been supported by NSF Grant GP-6983.
openaire   +2 more sources

Tuning Colloidal Stability and Photothermal Conversion Efficiency of Graphite Nanofluids via Anionic‐Nonionic Surfactant Engineering

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Graphite nanofluids were stabilized using a mixed SDS/Tween 80 surfactant system. The optimized formulation exhibited enhanced colloidal stability, red‐shifted UV–Vis absorption, and improved photothermal conversion under solar irradiation. Achieving stable dispersion of graphite flakes (GFs) in aqueous media remains a critical challenge in developing ...
Ahmad Chehade   +3 more
wiley   +1 more source

Nutraceutical Benefits of Anchomanes difformis Rhizome and Its Effects on Blood Glucose and Hepatorenal Function in Normoglycemic Rats

open access: yesFood Chemistry International, EarlyView.
Scientific analysis of Anchomanes difformis roots confirms significant nutraceutical potential, containing high levels of carbohydrates, proteins, and essential minerals. Phytochemical screening revealed antioxidants such as phenols and flavonoids, and although the extracts effectively lowered plasma glucose, safety testing showed dose‐dependent risks.
Lawrence Folorunso Dada   +2 more
wiley   +1 more source

Body‐integrated photonic biosensors: Illuminating the path to active healthcare

open access: yesFlexMat, EarlyView.
Body‐integrated photonic biosensors are promising tools for active healthcare. These optical devices can be worn, implanted, or swallowed to monitor health signals continuously. This review introduces key sensing modalities, including fluorescence, colorimetry, SPR, LSPR, SERS, and light‐modulating materials.
Jiayue Gu   +10 more
wiley   +1 more source

Establishment and Application of a Quantitative Lipemia Index as a Novel Indicator for Assessing Lipemic Interference in Clinical Chemistry

open access: yesJournal of Clinical Laboratory Analysis, EarlyView.
A rigorously validated quantitative lipemia index (LI) assay was established for direct serum turbidity measurement. This standardized LI metric demonstrated significantly stronger correlation with lipemic interference (rs = 0.822) than conventional triglyceride concentration (rs = 0.770), consistent with its direct measurement of optical turbidity ...
Haifeng Xie   +5 more
wiley   +1 more source

Looking at Soil as It Is: Evolution of Microscopic Soil Characterization From Kubiëna to Artificial Intelligence

open access: yesJournal of Plant Nutrition and Soil Science, EarlyView.
We provide a historic overview of microscopic soil structure characterization from its founding father, Walter Kubiëna, to several technical revolutions like automation, digitalization, and artificial intelligence. In addition to technical advancements, we explore how concepts and research questions have evolved in time.
Steffen Schlüter   +3 more
wiley   +1 more source

Soil Type Controls the Effects of the Nitrification Inhibitor DMPP on Nitrate Leaching and Mineral N Retention Under Simulated Heavy Rainfall

open access: yesJournal of Plant Nutrition and Soil Science, EarlyView.
ABSTRACT Background Nitrate (NO3−) leaching is a major nitrogen (N) loss pathway in agriculture and may increase with more frequent heavy rainfall. Nitrification inhibitors, such as 3,4‐dimethylpyrazole phosphate (DMPP), can reduce these losses, but their effectiveness under frequent heavy rainfall events remains unclear, which limits their targeted ...
Felix Ohmann   +2 more
wiley   +1 more source

Improving Soil Health and Crop Yields Through Conservation Agriculture and Nutrient Management in Central India

open access: yesLand Degradation &Development, EarlyView.
ABSTRACT Maintaining soil health and crop productivity in the semi‐arid Vertisols of central India poses a significant challenge under intensive agricultural practices. This 6‐year field study assessed the combined impact of different tillage methods, maize‐based crop rotations, and nitrogen management on soil's physical, chemical, and biological ...
Nishant K. Sinha   +10 more
wiley   +1 more source

Effects of Composite Reclamation Models of Sea Buckthorn, A Pioneer Species in Semi‐Arid Regions, on Soil Quality and Microbial Communities

open access: yesLand Degradation &Development, EarlyView.
ABSTRACT Open‐pit coal mining severely degrades soil and ecosystem functions, constraining regional sustainability. Vegetation‐based reclamation has therefore been widely adopted as an effective approach to promote soil recovery and ecosystem restoration.
Bo Wen   +7 more
wiley   +1 more source

Divergent Responses of Fungal Communities to Vegetation Structural Complexity in Degraded Roadside Slopes Across Climatic Gradients

open access: yesLand Degradation &Development, EarlyView.
ABSTRACT Understanding how climate and vegetation structural complexity jointly shape fungal communities is essential for effective roadside slope restoration. To address this, we examined restoration effects on fungal diversity, community composition, and ecological networks across three climatically distinct regions: dry‐hot valley, subalpine, and ...
Min Wang   +5 more
wiley   +1 more source

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