Results 131 to 140 of about 102,757 (351)

Molecular Palaeontology Prospects From Exceptionally Preserved Eocene Brackish‐Water Bivalve Batissa sitakaraensis (Venerida: Corbiculidae) From Hokkaido, Japan

Geological Journal, EarlyView.
This study reports the exceptional preservation of the Eocene freshwater bivalve Batissa sitakaraensis from Hokkaido, Japan. Multimodal analyses reveal that both the aragonitic shell mineralogy and the delicate organic periostracum retain their original structural and chemical characteristics after millions of years.
Taro Yoshimura, Kazuki Hirota, Hiroyuki Kagi, Takashi Matsubara, Takenori Sasaki   +4 more
wiley   +1 more source

Moringa oleifera lectin and binding affinity to humic acids : application to water treatment [PDF]

, 2007
Humic acids, natural organic matter, constitute a problem in water treatment; they react with chlorine forming undesirable disinfection byproducts.
Brito, A. G., Coelho, L. C. B. B., Cunha, M. G. C., Luz, Luciana A., Nogueira, R., Paiva, Patrícia M. G., Santos, Andréa F. S., Teixeira, J. A.   +7 more
core  

Deformation of humic acid by acid treatment [PDF]

, 1961
Jiro Kosaka, Chikabumi Honda, Akira Izeki   +2 more
openalex   +1 more source

Accu16S/AccuITS: Accurate and broadly applicable amplicon sequencing for absolute microbiome quantification

iMeta, EarlyView.
Traditional 16S rRNA gene and Internal Transcribed Spacer region amplicon sequencing provides only relative abundance, often leading to biased ecological interpretations. To overcome this limitation, we developed Accu16S/AccuITS, an absolute quantification method for bacterial and fungal amplicons based on synthetic internal spike‐in DNA with known ...
Defeng Bai, Ou Fang, Caihua Li, Bin Cai, Xingyan Tan, Mengmeng Jiang, Bin Gan, Jinxia Fu, Yunyun Gao, Ying Wang, Yong‐Xin Liu   +10 more
wiley   +1 more source

Use of high-dimensional spectral data to evaluate organic matter, reflectance relationships in soils [PDF]

Recent breakthroughs in remote sensing technology have led to the development of a spaceborne high spectral resolution imaging sensor, HIRIS, to be launched in the mid-1990s for observation of earth surface features. The effects of organic carbon content
Baumgardner, M. F., Coster, D. C., Franzmeier, D. P., Henderson, T. L., Stott, D. E.   +4 more
core   +1 more source

Effect of Zinc Oxide Nanoparticles From Infant Formula Milk Powder on Colon Cells In Vitro

Journal of Applied Toxicology, EarlyView.
ABSTRACT Zinc is an essential trace element that participates in numerous metabolic processes; however, excessive exposure may interfere with the absorption of other metals, such as copper. In recent years, nanotechnology has experienced rapid growth, and zinc oxide nanoparticles (ZnO NPs) have garnered significant attention due to their versatile ...
Gloria Salinas‐Lucero, Karla Juarez‐Moreno, Rafael Vazquez‐Duhalt   +2 more
wiley   +1 more source

Human Health Risk Assessment From Exposure to Toxic Metals in Soils and Leafy Vegetables in Smallholder Farms of Northeastern Brazil

Journal of Applied Toxicology, EarlyView.
ABSTRACT This study assessed human health risks associated with exposure to potentially toxic metals (PTMs) in soils and leafy vegetables cultivated in smallholder agricultural systems in Northeastern Brazil. Soil and vegetable samples were collected from 18 agricultural areas and analyzed for cadmium (Cd), chromium (Cr), copper (Cu), iron (Fe), nickel
Fernando Ferreira da Cunha Filho, Alex Souza Moraes, João Paulo Siqueira da Silva, Edvane Borges da Silva, Ademir Amaral, André Maciel Netto   +5 more
wiley   +1 more source

Influence of humic acids on growth performance, bravery, stress resistance, antioxidant activity, and immune gene expression in male Siamese fighting fish (Betta splendens)

Aquaculture Reports
The current study investigated the effects of a humic acid supplement on the growth performance, antioxidant enzyme activity, immune-related genes, behavior and endocrinology of male Betta splendens fish.
Mina Hemmatzadeh, Hamid Mohammadiazarm, Seyed Ahmad Ghasemi, Annahita Rezaie   +3 more
doaj   +1 more source

Decoupling climate and human impacts on the nitrogen cycle during the Irish Bronze Age

Journal of Quaternary Science, EarlyView.
ABSTRACT Disentangling climate variability and human activity in past nitrogen cycling is key to understanding ecosystems. Previous studies in Ireland observed a widespread, permanent shift in terrestrial nitrogen cycling during Later Prehistory, potentially linked to intensifying land‐use.
Sarah Ferrandin, Gill Plunkett, Neil Ogle   +2 more
wiley   +1 more source

Humic Substances Enhance Waterlogging Tolerance in Cabbage Seedling via Antioxidant Activation and Hormonal Reprogramming

Horticulturae
As climate change continues to alter rainfall patterns and precipitation regimes across the globe, waterlogging is emerging as a widespread and pressing issue that threatens agricultural productivity and food security.
Melek Ekinci, Selda Ors Cirik, Ertan Yildirim, Metin Turan, Murat Aydin, Esma Yigider, Aslı Cangönül   +6 more
doaj   +1 more source