Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 3 de 3
Filtrar
Mais filtros










Base de dados
Intervalo de ano de publicação
1.
Biodivers Data J ; 7: e35303, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31523158

RESUMO

We present the first official record of the by-the-wind-sailor (Velella velella) for Ecuador. Twelve individuals were found along different beaches of San Cristóbal and Santa Cruz Islands in Galápagos Archipelago, Ecuador. These sightings may be influenced by El Niño Southern Oscillation events.

2.
J Contam Hydrol ; 204: 28-39, 2017 09.
Artigo em Inglês | MEDLINE | ID: mdl-28802767

RESUMO

Physical, chemical, and biological interactions between groundwater and sedimentary rock directly control the fundamental subsurface properties such as porosity, permeability, and flow. This is true for a variety of subsurface scenarios, ranging from shallow groundwater aquifers to deeply buried hydrocarbon reservoirs. Microfluidic flow cells are now commonly being used to study these processes at the pore scale in simplified pore structures meant to mimic subsurface reservoirs. However, these micromodels are typically fabricated from glass, silicon, or polydimethylsiloxane (PDMS), and are therefore incapable of replicating the geochemical reactivity and complex three-dimensional pore networks present in subsurface lithologies. To address these limitations, we developed a new microfluidic experimental test bed, herein called the Real Rock-Microfluidic Flow Cell (RR-MFC). A porous 500µm-thick real rock sample of the Clair Group sandstone from a subsurface hydrocarbon reservoir of the North Sea was prepared and mounted inside a PDMS microfluidic channel, creating a dynamic flow-through experimental platform for real-time tracking of subsurface reactive transport. Transmitted and reflected microscopy, cathodoluminescence microscopy, Raman spectroscopy, and confocal laser microscopy techniques were used to (1) determine the mineralogy, geochemistry, and pore networks within the sandstone inserted in the RR-MFC, (2) analyze non-reactive tracer breakthrough in two- and (depth-limited) three-dimensions, and (3) characterize multiphase flow. The RR-MFC is the first microfluidic experimental platform that allows direct visualization of flow and transport in the pore space of a real subsurface reservoir rock sample, and holds potential to advance our understandings of reactive transport and other subsurface processes relevant to pollutant transport and cleanup in groundwater, as well as energy recovery.


Assuntos
Sedimentos Geológicos/química , Água Subterrânea/química , Hidrologia/métodos , Microfluídica/métodos , Minerais/química , Modelos Teóricos , Microscopia , Permeabilidade , Porosidade , Análise Espectral Raman
3.
J Feline Med Surg ; 9(3): 188-95, 2007 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-17188013

RESUMO

Feline aggression towards people has a smaller incidence than canine aggression, but also represents an important public health problem. The aim of this work was to analyse feline aggression reported towards people, to estimate its incidence and to assess the risk factors involved. The information was obtained from the Public Health Centres in the Valencian Region (Spain). A total of 936 acts of feline aggression were analysed. Cats inflicted 8% of all animal bites reported. The annual average was 6.36 feline aggression incidents per 100,000 people. Most aggressive incidents occurred during the summer months. Children (0-14 years old) and women were more likely to be bitten. Wounds were mainly punctures, single, and mild, and were located mostly on the hands. In children, the head and neck areas were affected much more than in adults. The cats involved in incidents were mostly Siamese, female and owned; these cats mainly attacked their owners. Most occurrences were a defensive response by the cat.


Assuntos
Agressão , Mordeduras e Picadas/epidemiologia , Doenças do Gato/epidemiologia , Doenças do Gato/prevenção & controle , Gatos , Transtornos Mentais/veterinária , Ferimentos e Lesões/epidemiologia , Adulto , Distribuição por Idade , Animais , Animais Domésticos , Comportamento Animal , Mordeduras e Picadas/prevenção & controle , Criança , Serviço Hospitalar de Emergência/estatística & dados numéricos , Feminino , Humanos , Incidência , Masculino , Espanha/epidemiologia , Ferimentos e Lesões/prevenção & controle
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA
...