Results 141 to 150 of about 24,141 (302)

Designing Elastic Softening Under Compression via Dipole–Dipole Interactions: The Case of Na2TiSiO5

open access: yesSmall, EarlyView.
Pressure usually stiffens solids, yet Na2TiSiO5 exhibits anomalous elastic softening under compression. Unlike conventional mechanisms driven by geometric rearrangements or electronic spin‐state transitions, the softening originates from enhanced dipole coupling along head‐to‐tail TiO5 chains.
Peijie Zhang   +7 more
wiley   +1 more source

Cyanogenic Compounds, Physicochemical Parameters and Metals in Water From Cassava Processing Areas: A Study in the Brazilian Amazon, Using Multivariate Analysis

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT This study evaluated the water quality of artesian wells and effluents generated in cassava processing in a rural area of Bragança, Pará, with emphasis on physicochemical parameters, multielement composition, and cyanogenic compounds. The well water presented specific nonconformities, highlighting pH values below the recommended level and high
Alana Coêlho Maciel   +13 more
wiley   +1 more source

El problema de las lagunas de la Cordillera Blanca [PDF]

open access: yes, 1957
La Cordillera Blanca tiene 170 Km de longitud y en ella están ubicados 230 lagunas cuyos diques son de morrena, de roca, o de cono de escombros. En los últimos años se han producido cuatro aluviones de carácter destructivo.
Fernández Concha, Jaime
core  

Assessment of Oxidative Stress, Vitellogenin, and Human Health Risks Derived From Nile Tilapia Exposed to Metals and Metalloids in Southeastern Brazil

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT Urban coastal lagoons are highly vulnerable ecosystems increasingly affected by metal contamination, as well as multiple anthropogenic stressors. This study evaluated ecotoxicological and human health risks associated with chronic metal exposure in Nile tilapia (Oreochromis niloticus) from an anthropogenically impacted lagoon in southeastern ...
Julia Araújo Alves   +8 more
wiley   +1 more source

Estudio de las poblaciones algales en lagunas de alta carga [PDF]

open access: yes, 1995
Uno de los aspectos más interesantes que ofrece la biotecnología relacionada con las algas es la depuración de las aguas residuales. Las lagunas de alta carga, ideadas por Oswald en 1957 (OSWALD & GOLUEKE, 1960), difieren de las lagunas convencionales (o
García Serrano Joan   +3 more
core  

EE2 and the Fish Brain: Age‐Dependent Impact of 17α‐Ethinylestradiol on Brain Cell Proliferation and Behavior in Sea Bass Larvae

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT Endocrine‐disrupting chemicals (EDCs), such as 17α‐ethinylestradiol (EE2), have raised concerns about their potential effects on aquatic organisms, particularly during early developmental stages. In this context, the study of behavioral disruption has gained considerable attention, as it may have consequences on individual fitness and ...
Soloperto Sofia   +6 more
wiley   +1 more source

Improving manual tagging of camera trap videos for wildlife studies: a visual assistance tool applied to the endangered huillin Lontra provocax

open access: yesWildlife Biology, EarlyView.
In the last decades, the use of camera traps for wildlife studies has increased significantly due to advancements in technology leading to cost reduction and improved reliability. They facilitate the study of wild animals in their natural environment in a minimally invasive manner, eliminating the need for researchers to remain in the field for long ...
Luciano Marpegan   +2 more
wiley   +1 more source

Thermal expansion of FeWO4 (ferberite) and FeWO4:Fe2WO6 (7:1): a comparative X‐ray and neutron diffraction study

open access: yesJournal of Applied Crystallography, EarlyView.
Temperature‐dependent single‐crystal X‐ray, powder X‐ray and neutron diffraction measurements reveal the thermal expansion behavior of FeWO4 from 2 to 1123 K. Significant differences between natural ferberite and a FeWO4:Fe2WO6 composite highlight the influence of multiphase and microstructural effects on derived thermoelastic parameters.The thermal ...
O. Fabelo   +5 more
wiley   +1 more source

Hidrología de algunas lagunas de Castilla-La Mancha [PDF]

open access: yes, 1994
Tesis Universidad Complutense de Madrid, Facultad de Ciencias Geológicas, Departamento de Geodinámica, 1994La zona de estudio se sitúa en la llanura manchega, al se de la provincia de toledo. Tiene una extensión aproximada de 220 km2. Dentro de este área,
Fornés, Juan María
core  

Herbivore and mesocarnivore carcasses trigger divergent short‐term changes in soil properties

open access: yesJournal of Animal Ecology, EarlyView.
Scavengers reshape nutrient cycles in soils under carrion. Compared to herbivore carcasses, smaller but longer‐lasting carnivore remains boost nutrient levels and microbial activity in dry soils. Abstract Animal corpses act as pulses of organic matter (OM) and serve a key zoogeochemical role by providing localized nutrient inputs to soils and thereby ...
Adrián Colino‐Barea   +15 more
wiley   +1 more source

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