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Scientists determine early Earth was a ‘water world’ by studying exposed ocean crust（图）
Scientists early Earth water world’ exposed ocean crust
2020/3/13
The Earth of 3.2 billion years ago was a "water world" of submerged continents, geologists say, after analyzing oxygen isotope data from ancient ocean crust now exposed on land in Australia. The findi...
Rock exposed in World War I trenches offers new fossil find
Rock exposed World War I trenches new fossil
2017/4/27
An unusual fossil find is giving scientists new ideas about how some of the earliest animals on Earth came to dominate the world’s oceans.An international research team found 425-million-year-old foss...
West Coast study emphasizes challenges faced by marine organisms exposed to global change
West Coast study marine organisms global change
2016/1/17
The Pacific Ocean along the West Coast serves as a model for how other areas of the ocean could respond in coming decades as the climate warms and emission of greenhouse gases like carbon dioxide incr...
The electrical signature of rock samples exposed to hydrostatic and triaxial pressures
Electrical impedance spectroscopy fracturing carbonate amphibolite pressure
2015/9/28
The electrical signature of sedimentary (carbonate) and crystalline rock samples was studied in hydrostatic and triaxial pressure experiments up to 300 MPa. The aim was to establish a relation between...
Molecular Biology of a Surface-Exposed Protein Family of Bartonella Bacilliformis
Bartonella Bacilliformi Surface-Exposed Protein
2015/1/7
Bartonella bacilliformis (Bb) is the bacterial agent of Carrión's disease and is presumed to be transmitted between humans by phlebotomine sand flies, most notably Lutzomyia verrucarum. Carrión's ...
Duality of non-exposed faces
convex body polar conjugate face non-exposed point singular point dual self-dual
2011/9/5
Abstract: The assignment of the conjugate face is a natural mapping associated to a convex body and its polar convex body. We study its restriction to non-exposed faces. Conjugate faces of non-exposed...
Exposed faces for decomposable positive linear maps arising from completely positive maps
decomposable positive maps exposed faces product vectors
2011/7/25
Abstract: Let $D$ be a space of $2\times n$ matrices. Then the face of the cone of all completely positive maps from $M_2$ into $M_n$ given by $D$ is an exposed face of the bigger cone of all decompos...
Responses to iron limitation in two colonies of Stylophora pistillata exposed to high temperature: Implications for coral bleaching
Stylophora pistillata Responses coral bleaching
2014/4/8
Exposing the coral Stylophora pistillata to seawater depleted in available iron by complexation with the strong
chelator desferrioxamine B reduces the photosynthetic efficiency and alters the pigment...
Parametric studies and quantitative assessment of the vulnerability of a RC frame building exposed to differential settlements
Parametric studies quantitative assessment the vulnerability differential settlements
2010/10/21
The aim of this paper is to propose a simplified methodology to evaluate the mechanical performances of buildings exposed to landslide hazard, by using procedures inspired from the seismic risk analys...
The Effects of Propolis on Biochemical Parameters and Activity of Antioxidant Enzymes in Broilers Exposed to Lead-Induced Oxidative Stress
Broiler Lead Oxidative Stress Propolis Blood Malondialdehyde Antioxidant Enzymes
2016/5/5
This study aimed to determine the effects of vitamin C and propolis-supplemented feeds on some blood parameters, lipid peroxidation, and activities of some antioxidant enzymes in broilers exposed to o...
Effect of Quercetin on the Activity and mRNA Expression of Antioxidant Enzymes and Physiological Responses in Olive Flounder (Paralichthys olivaceus) Exposed to Cadmium
Antioxidant LPO Lysozyme Quercetin ROS Cadmium Olive Flounder
2016/5/4
We investigated the antioxidant efficacy of quercetin (0% Diet 1, 0.25% Diet 2, and 0.5% Diet 3) pretreatment for 30 and 60 days in response to cadmium (Cd) toxicity in the olive flounder, and measure...
Kinetic double-layer model of aerosol surface chemistry and gas-particle interactions (K2-SURF): Degradation of polycyclic aromatic hydrocarbons exposed to O3, NO2, H2O, OH and NO3
Kinetic double-layer model aerosol surface chemistry gas-particle interactions K2-SURF
2009/12/31
We present a kinetic double-layer surface model (K2-SURF) that describes the degradation of polycyclic aromatic hydrocarbons (PAHs) on aerosol particles exposed to ozone, nitrogen dioxide, water vapor...
Non-stationary temporal characterization of the temperature profile of a soil exposed to frost in south-eastern Canada
Non-stationary temporal characterization temperature profile soil exposed to frost
2009/10/30
The objective of this work was to compare time and frequency fluctuations of air and soil temperatures (2-, 5-, 10-, 20- and 50-cm below the soil surface) using the continuous wavelet transform, with ...
Growth forms and distribution patterns of stromatoporoids exposed on Devonian palaeobottom surfaces;Holy Cross Mountains,central Poland
Stromatoporoids Morphometry Parameterization Palaeobottom surfaces
2009/10/20
Well preserved palaeobottomsurfaceswith stromatoporoids are exposed in twoDevonian localities in theHoly Cross Mountains in central Poland: Skały and Bolechowice-Panek quarries. The stromatoporoi...
Shadows and photoevaporated flows from neutral clumps exposed to two ionizing sources
Shadows ionizing sources photoevaporate
2009/6/30
Shadows and photoevaporated flows from neutral clumps exposed to two ionizing sources。