Seasonality and vertical structure of microbial communities
... using the PC-ORD 5 software package (McCune and Grace, 2002). Sørenson distance measurement and the ‘slow and thorough’ autopilot setting (250 ordinations with real data, 250 randomized Monte Carlo runs, 500 iterations) were chosen. Final stress of the stable, two-dimensional solution was 15.8 with ...
... using the PC-ORD 5 software package (McCune and Grace, 2002). Sørenson distance measurement and the ‘slow and thorough’ autopilot setting (250 ordinations with real data, 250 randomized Monte Carlo runs, 500 iterations) were chosen. Final stress of the stable, two-dimensional solution was 15.8 with ...
Solar chromospheric flares: energy release, transport and radiation
... unfeasible to explain the optical enhancements as direct photospheric heating by electrons, due to the very large column depths that these would have to traverse. Heating by protons - which travel much deeper than electrons with the same speed - remains a possibility, but so little is known about th ...
... unfeasible to explain the optical enhancements as direct photospheric heating by electrons, due to the very large column depths that these would have to traverse. Heating by protons - which travel much deeper than electrons with the same speed - remains a possibility, but so little is known about th ...
AMINO ACIDS IN THE ASTEROIDAL WATER - USRA
... Likewise, only glycine, β-alanine, and γ-ABA were found in the three LL5 LAP samples [11]. Some LL3 and all L6 meteorites have undergone extensive thermal metamorphism at temperatures of >500°C [2], but the presence of indigenous amino acids in the LL3 chondrites suggests that amino acids may be for ...
... Likewise, only glycine, β-alanine, and γ-ABA were found in the three LL5 LAP samples [11]. Some LL3 and all L6 meteorites have undergone extensive thermal metamorphism at temperatures of >500°C [2], but the presence of indigenous amino acids in the LL3 chondrites suggests that amino acids may be for ...
Hematite on Mars: What does it tell us?
... lot of basaltic rock (similar in composition to the volcanic rock in Hawaii) where the gray hematite occurs. Basaltic rocks contain iron within the feldspar and pyroxene minerals that make up the rock. In the presence of water, the iron is removed from these minerals and used to form hematite. There ...
... lot of basaltic rock (similar in composition to the volcanic rock in Hawaii) where the gray hematite occurs. Basaltic rocks contain iron within the feldspar and pyroxene minerals that make up the rock. In the presence of water, the iron is removed from these minerals and used to form hematite. There ...
Eubacteria and Archaebacteria
... wide variety of pathogens genre such as Escherichia (E. coli), Salmonella, Vibrio (V. cholerae), and Helicobacter (H. pylori). Others are free-living (non-parasitic) bacteria that are called purple bacteria, referring to their mostly reddish pigmentation, they use photosynthesis to obtain energy. Cy ...
... wide variety of pathogens genre such as Escherichia (E. coli), Salmonella, Vibrio (V. cholerae), and Helicobacter (H. pylori). Others are free-living (non-parasitic) bacteria that are called purple bacteria, referring to their mostly reddish pigmentation, they use photosynthesis to obtain energy. Cy ...
Methods of Food Preservation
... 3.2. Preservation by low water activity (aw) Water activity can be reduced by partial removal of the water (drying, reverse osmosis, concentration) or by adding substances which increase the osmotic pressure of the food or media such as sugars, ethanol, glycerol, salts, etc. (Booth, 1998). The major ...
... 3.2. Preservation by low water activity (aw) Water activity can be reduced by partial removal of the water (drying, reverse osmosis, concentration) or by adding substances which increase the osmotic pressure of the food or media such as sugars, ethanol, glycerol, salts, etc. (Booth, 1998). The major ...
Temperature, Biogenesis and Biospheric Self
... history, even multiple attractors for steady-state climatic regimes. Thus, there are a finite number of histories, for the same initial conditions and cosmic background, hence "quasi"- deterministic evolution. Evolution of procaryotes and complex life on terrestrial planets around Sun-like stars are ...
... history, even multiple attractors for steady-state climatic regimes. Thus, there are a finite number of histories, for the same initial conditions and cosmic background, hence "quasi"- deterministic evolution. Evolution of procaryotes and complex life on terrestrial planets around Sun-like stars are ...
RADIATION SIGNATURES OF SUB
... There is a lore that a relativistic particle of charge e and a Lorentz factor γ moving through a magnetic field B produces synchrotron radiation, whose spectrum peaks at ωs ∼ (eB/mc)γ 2 , has an asymptotic ω 1/3 dependence below the peak and falls off exponentially at higher frequencies (it makes a ...
... There is a lore that a relativistic particle of charge e and a Lorentz factor γ moving through a magnetic field B produces synchrotron radiation, whose spectrum peaks at ωs ∼ (eB/mc)γ 2 , has an asymptotic ω 1/3 dependence below the peak and falls off exponentially at higher frequencies (it makes a ...
The Effects of Flooding on the Microbial Communities of Sparrow
... The avian egg is one example of a host affected by pathogenic microbial environments. Shortly after laying, eggshells become exposed to environmental microbes. These microbes can multiply rapidly and penetrate through the shell pores (Cook et al., 2005). The pores are responsible for all gas exchang ...
... The avian egg is one example of a host affected by pathogenic microbial environments. Shortly after laying, eggshells become exposed to environmental microbes. These microbes can multiply rapidly and penetrate through the shell pores (Cook et al., 2005). The pores are responsible for all gas exchang ...
Identification of Two Unknown Species of Bacteria
... Advances in Microbiology and Molecular Biology bring ever-increasing detail to the classification of microbial life. Gene mapping shows similarities between species at a molecular level, perhaps giving insight as to the evolutionary path of an organism. Carl Woese, a molecular biologist at the Unive ...
... Advances in Microbiology and Molecular Biology bring ever-increasing detail to the classification of microbial life. Gene mapping shows similarities between species at a molecular level, perhaps giving insight as to the evolutionary path of an organism. Carl Woese, a molecular biologist at the Unive ...
Using pyruvic acid as a solvent for dynamic nuclear
... evaluations. Recently, hyperpolarized 13C labeled pyruvate has been used in a prove-of-concept clinical trial in prostate cancer patients (3). Although neat pyruvic acid is typically used as the sole substrate in the DNP sample matrix, it may be feasible to use pyruvic acid as the solvent and dissol ...
... evaluations. Recently, hyperpolarized 13C labeled pyruvate has been used in a prove-of-concept clinical trial in prostate cancer patients (3). Although neat pyruvic acid is typically used as the sole substrate in the DNP sample matrix, it may be feasible to use pyruvic acid as the solvent and dissol ...
TITAN ARTICLES - California State University, Northridge
... Tectonism (brittle fracturing and faulting) has clearly played a role in shaping Titan's surface. "The only known planetary process that creates large-scale linear boundaries is tectonism, in which internal processes cause portions of the crust to fracture and sometimes move either up, down or sidew ...
... Tectonism (brittle fracturing and faulting) has clearly played a role in shaping Titan's surface. "The only known planetary process that creates large-scale linear boundaries is tectonism, in which internal processes cause portions of the crust to fracture and sometimes move either up, down or sidew ...
INTRODUCTION/METRIC SYSTEM
... 8. Describe each of Kepler's planetary motion laws: ellipses, equal areas, and periods. 9. Describe how Newton used gravity and inertia to explain a planet’s revolution/orbit. 10. Describe retrograde motion of a planet (include which planets retrograde from Earth). 11. Name the dates for the winter/ ...
... 8. Describe each of Kepler's planetary motion laws: ellipses, equal areas, and periods. 9. Describe how Newton used gravity and inertia to explain a planet’s revolution/orbit. 10. Describe retrograde motion of a planet (include which planets retrograde from Earth). 11. Name the dates for the winter/ ...
Chemical Characterization of Polar Species in Colombian
... Billerica, MA) equipped with a commercially available electrospray source. VR and its subfractions were diluted in 40:60 (v/v) toluene/methanol to yield a 0.05 mg/mL solution (samples S1, S2 and S3), and 0.10 mg/mL (samples S4, S5 and VR). Acetic acid was added (10 µL to each 1 mL of sample solution ...
... Billerica, MA) equipped with a commercially available electrospray source. VR and its subfractions were diluted in 40:60 (v/v) toluene/methanol to yield a 0.05 mg/mL solution (samples S1, S2 and S3), and 0.10 mg/mL (samples S4, S5 and VR). Acetic acid was added (10 µL to each 1 mL of sample solution ...
reflectance spectra of earth-like exoplanets
... James Webb Space Telescope. If an atmosphere is present, the information received by transmission spectra are diagnostics of the temperature and chemical composition of these atmospheres (Seager et al. (2000)) and provide an insight into the nature of the exoplanet. But unfortunately, direct observa ...
... James Webb Space Telescope. If an atmosphere is present, the information received by transmission spectra are diagnostics of the temperature and chemical composition of these atmospheres (Seager et al. (2000)) and provide an insight into the nature of the exoplanet. But unfortunately, direct observa ...
Efficiency improvement of crystalline silicon solar cells
... significantly reduces the emitter saturation current (Joe) and therefore leads to a higher short circuit current [5]. The passivation is characterized by measuring the Si-H and N-H concentrations in the SiNx layer [39, 40]. In case of optical efficiency, SiNx layer with higher RI gives higher extinc ...
... significantly reduces the emitter saturation current (Joe) and therefore leads to a higher short circuit current [5]. The passivation is characterized by measuring the Si-H and N-H concentrations in the SiNx layer [39, 40]. In case of optical efficiency, SiNx layer with higher RI gives higher extinc ...
Module 8 – Diversity of Microbial World
... species is designated as the type strain. It is usually one of the first strains studied and often is more fully characterized than other strains; however, it does not have to be the most representative member but this strain can be considered as reference strain and can be compared with other strai ...
... species is designated as the type strain. It is usually one of the first strains studied and often is more fully characterized than other strains; however, it does not have to be the most representative member but this strain can be considered as reference strain and can be compared with other strai ...
Dating the Earliest Solids in our Solar System
... Chondritic meteorites (chondrites), the oldest rocks in our solar system, provide a significant record of the processes that transformed a disk of gas and dust into a collection of planets, moons, asteroids, and comets. They are considered to be the building blocks of the inner planets, Mercury, Ven ...
... Chondritic meteorites (chondrites), the oldest rocks in our solar system, provide a significant record of the processes that transformed a disk of gas and dust into a collection of planets, moons, asteroids, and comets. They are considered to be the building blocks of the inner planets, Mercury, Ven ...
Phenyl Acetate Preparation ( from Phenol and
... (Table 1). Water removal via acetic acid azeotroping markedly raised this, so that preparations employing this technique and using a four mole excess of acetic acid, achieved 55-60% yields of ester based on phenol (Table 2 ) . With less efficient columns (short Vigreux and the like), equivalent yiel ...
... (Table 1). Water removal via acetic acid azeotroping markedly raised this, so that preparations employing this technique and using a four mole excess of acetic acid, achieved 55-60% yields of ester based on phenol (Table 2 ) . With less efficient columns (short Vigreux and the like), equivalent yiel ...
articles - Geoscience Research Institute
... our solar system, it seemed most reasonable to conclude that, “as the Earth was forming, most of its carbon, nitrogen, and oxygen would be in the form of methane, ammonia, and water.”8 However, in the light of current geological and geophysical data, it appears that ammonia on the primitive earth wo ...
... our solar system, it seemed most reasonable to conclude that, “as the Earth was forming, most of its carbon, nitrogen, and oxygen would be in the form of methane, ammonia, and water.”8 However, in the light of current geological and geophysical data, it appears that ammonia on the primitive earth wo ...
13-7-ET-V1-S1__labor..
... cetrimide) having tendency to make clumps of bacterial cells may give wrong interpretation. This problem can be avoided by adding non-ionic surface active agents to diluting fluids. 3.2.2.In use and simulated use tests In contrast to suspension test, in use test and simulated tests are involved in t ...
... cetrimide) having tendency to make clumps of bacterial cells may give wrong interpretation. This problem can be avoided by adding non-ionic surface active agents to diluting fluids. 3.2.2.In use and simulated use tests In contrast to suspension test, in use test and simulated tests are involved in t ...
EXPOSE
EXPOSE is a multi-user facility mounted outside the International Space Station dedicated to astrobiology. EXPOSE was developed by the European Space Agency (ESA) for long-term spaceflights and was designed to allow exposure of chemical and biological samples to outer space while recording data during exposure.The results will contribute to our understanding of photobiological processes in simulated radiation climates of planets (e.g. early Earth, early and present Mars, and the role of the ozone layer in protecting the biosphere from harmful UV-B radiation), as well as studies of the probabilities and limitations for life to be distributed beyond its planet of origin. EXPOSE data support long-term in situ studies of microbes in artificial meteorites, as well as of microbial communities from special ecological niches. Some EXPOSE experiments investigated to what extent particular terrestrial organisms are able to cope with extraterrestrial environmental conditions. Others tested how organic molecules react when subjected for a prolonged period of time to unfiltered solar light.