Results 71 to 80 of about 149,774 (235)

Simplified, Portable and Cost‐Efficient Airborne eDNA Metabarcoding to Expand Tropical Biodiversity Assessments

open access: yesEnvironmental DNA, Volume 8, Issue 2, March/April 2026.
This study introduces a liquid‐based sampling approach for airborne eDNA (A). Using a greenhouse mock‐community for optimization (B), we use the novel approach in the tropical Andes to demonstrate its versatility and the complementary nature of airborne and aquatic eDNA for molecular biodiversity assessments (C).
Christopher Heine   +6 more
wiley   +1 more source

A Carga Burocrática da Política Brasileira para Água Mineral - Estudo de Caso: Estado do Rio de Janeiro

open access: yesRevista Águas Subterrâneas, 2006
A participação da União, em diversas etapas do processo burocrático para a legalização da indústria de água mineral, desencadeia uma série de pré requisitos entre diplomas da União, do Estado e do Município que geram a superposição de poderes culminando ...
Lucio Carramilo Caetano   +1 more
doaj  

Tectosilicatos con características especiales: las zeolitas naturales [PDF]

open access: yes, 2011
Las zeolitas comprenden un grupo de aluminosilicatos cristalinos e hidratados de aluminio, con cationes alcalinos y alcalino-térreos, y con una ordenación tridimensional (tectosilicatos) donde predomina una estructura abierta que les aporta gran ...
Costafreda Mustelier, Jorge Luis
core   +1 more source

Behavior of Coastal Amagmatic Geothermal Systems: Thermal–Hydraulic Modeling Insights From La Jolla Beach, Baja California, Mexico

open access: yesJournal of Geophysical Research: Solid Earth, Volume 131, Issue 3, March 2026.
Abstract Amagmatic geothermal systems in coastal locations are promising energy resources, yet the processes that localize and sustain their hot‐spring discharge remain unclear. We investigate La Jolla Beach (NW Baja California, Mexico)—one of the hottest known examples worldwide (∼100°C)—using large‐scale 3D coupled thermal–hydraulic simulations.
Daniel Carbajal‐Martínez   +3 more
wiley   +1 more source

SITUAÇÃO DA GESTÃO DAS ÁGUAS MINERAIS E DISCUSSÃO SOBRE SUA INSERÇÃO NA GESTÃO INTEGRADA DE RECURSOS HÍDRICOS NO ESTADO DO RIO DE JANEIRO

open access: yesRevista Águas Subterrâneas, 2004
O presente trabalho avalia a situação da gestão das águas minerais e discute sua inserção na gestão integrada de recursos hídricos no estado do Rio de Janeiro.
Lucio Carramillo Caetano   +1 more
doaj  

Feeding spectra and activity of the freshwater crab Trichodactylus kensleyi (Decapoda: Brachyura: Trichodactylidae) at La Plata basin [PDF]

open access: yes, 2014
Background: In inland water systems, it is important to characterize the trophic links in order to identify the ‘trophic species’ and, from the studies of functional diversity, understand the dynamics of matter and energy in these environments.
A Ruttner-Kolisko   +70 more
core   +1 more source

Leaf Litter Decomposition in the Tropics Dynamically Recovers Following Experimental Disturbance Across Temporal Scales

open access: yesBiotropica, Volume 58, Issue 2, March 2026.
Litter decomposition by arthropods and microbes is a key ecosystem process in tropical forests, yet its response to disturbance and forest regeneration remains poorly understood. To investigate decomposition dynamics across forest succession, we conducted a space‐for‐time study in the Ecuadorian lowland Chocó spanning active cacao plantations and ...
Arianna Tartara   +11 more
wiley   +1 more source

Influência de sais e do pH da água na eficiência de imazethapyr + imazapic no controle de arroz-vermelho Influence of salts and water pH on the efficiency of imazethapyr + imazapic for red rice control

open access: yesPlanta Daninha, 2007
Na safra agrícola de 2004/2005, em Santa Maria/RS, foi realizado um experimento com o objetivo de avaliar a influência de sais e do pH da água de diferentes fontes de abastecimento de pulverizadores (água de fonte mineral, água de açude e água de poço ...
D.M. Sanchotene   +5 more
doaj   +1 more source

In vivo effects of Metformin on the alterations of bone micro-architecture associated with fructose-induced Metabolic Syndrome in rats [PDF]

open access: yes, 2011
El Síndrome Metabólico (SM) se ha asociado recientemente con una disminución en la densidad mineral ósea, y con un aumento en la incidencia de fracturas osteoporóticas.
Cortizo, Ana María   +4 more
core   +1 more source

Phosphogypsum Doses and Subsoil Contamination: A Study on the Mobility of Rare Earth Elements, Uranium, and Thorium

open access: yesEuropean Journal of Soil Science, Volume 77, Issue 2, March–April 2026.
Experiment setup view. ABSTRACT Soil conditioners are commonly used by producers aiming to enhance agricultural productivity, and among these products, phosphogypsum has gained increasing attention. As an agricultural amendment, phosphogypsum contains rare earth elements (REE), uranium (U), and thorium (Th), raising environmental concerns regarding its
Luís Paulo P. Tanure   +7 more
wiley   +1 more source

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