Possible Processes for Origin of First Chemoheterotrophic
... first organic forms of life in various waters with varrying content of deuterium. The content of deuterium in hot mineral water may be increased due to the physical chemical processes of the deuterium accumulation. It can be presumed that primary water might contain more deuterium at early stages of ...
... first organic forms of life in various waters with varrying content of deuterium. The content of deuterium in hot mineral water may be increased due to the physical chemical processes of the deuterium accumulation. It can be presumed that primary water might contain more deuterium at early stages of ...
Cosmological solutions of the Einstein
... This does not mean, however, that at later times when the other energy density components come in to play and even dominate the scene we have to expect a flat space one. In fact the observed energy density at present is close to the critical one. This we will discuss later. Even if one counts the no ...
... This does not mean, however, that at later times when the other energy density components come in to play and even dominate the scene we have to expect a flat space one. In fact the observed energy density at present is close to the critical one. This we will discuss later. Even if one counts the no ...
Molecules Detected in Interstellar Space
... The by-far most abundant interstellar molecule is molecular hydrogen, H2 . Since H2 , because of its symmetry, does not have an electric dipole moment, only weak electric quadrupole transitions between rotational or ro-vibrational levels can be observed. Therefore, low rotational transitions of the ...
... The by-far most abundant interstellar molecule is molecular hydrogen, H2 . Since H2 , because of its symmetry, does not have an electric dipole moment, only weak electric quadrupole transitions between rotational or ro-vibrational levels can be observed. Therefore, low rotational transitions of the ...
Introduction to the Fungi
... • Mycorrhizae are responsible for plant life on land and high productivity rates • They decompose wood and organic matter • Penicillin and other medicines ...
... • Mycorrhizae are responsible for plant life on land and high productivity rates • They decompose wood and organic matter • Penicillin and other medicines ...
Frontiers in Microbiology
... exposure to a high dose of radiation. These bacteria, called Deinococcus radiodurans, are the most radiation-resistant organism known to exist. They can withstand radiation doses 1500 times the amount that would kill a human. For this reason D. radiodurans has been nicknamed Conan the Bacterium (Hu ...
... exposure to a high dose of radiation. These bacteria, called Deinococcus radiodurans, are the most radiation-resistant organism known to exist. They can withstand radiation doses 1500 times the amount that would kill a human. For this reason D. radiodurans has been nicknamed Conan the Bacterium (Hu ...
The Sun as an X-Ray Star. III. Flares
... have to be integrated on time intervals of hundreds of seconds to increase the overall statistics of the Ðtting process. This means that the Ñares are binned into few time intervals. Since Ñares evolve on timescales smaller or of the same order, the data collected in a time bin do not represent stea ...
... have to be integrated on time intervals of hundreds of seconds to increase the overall statistics of the Ðtting process. This means that the Ñares are binned into few time intervals. Since Ñares evolve on timescales smaller or of the same order, the data collected in a time bin do not represent stea ...
Persistence of the Gleissberg 88-year solar cycle over
... series. Applying that procedure to a gradually enlarged record he calculated and regularly published secularly smoothed epochs and ordinates of maxima and minima of Schwabe cycle in Wolf sunspot numbers [Gleissberg, 1944, 1958, 1967, 1976] and for those in frequency of aurorae sightings [Gleissberg, ...
... series. Applying that procedure to a gradually enlarged record he calculated and regularly published secularly smoothed epochs and ordinates of maxima and minima of Schwabe cycle in Wolf sunspot numbers [Gleissberg, 1944, 1958, 1967, 1976] and for those in frequency of aurorae sightings [Gleissberg, ...
Maintaining Viability of Aerobic and Anaerobic Bacteria from
... Different swab systems are used to transport a variety of specimen types to the diagnostic laboratory and these systems often differ depending upon the category of organism being investigated e.g. bacteria, viruses or fungi. The ideal swab system must absorb organisms from the infection site, mainta ...
... Different swab systems are used to transport a variety of specimen types to the diagnostic laboratory and these systems often differ depending upon the category of organism being investigated e.g. bacteria, viruses or fungi. The ideal swab system must absorb organisms from the infection site, mainta ...
odour away
... (GRAS) by the US Food and Drug Administration. These microbes are found in human food products and humans can even safely consume Odour Away. The microbes in Odour Away are able to coexist and support each other in odour neutralization due to their combined metabolic properties. The yeast in Odour A ...
... (GRAS) by the US Food and Drug Administration. These microbes are found in human food products and humans can even safely consume Odour Away. The microbes in Odour Away are able to coexist and support each other in odour neutralization due to their combined metabolic properties. The yeast in Odour A ...
Oxygen isotopes in circumstellar Al_2O_3 grains from meteorites
... The Al 20 3 grains exhibit a range in 16 0/ 18 0 that is larger than predicted for a suite of stars with the same starting composition (Fig. 3). The predicted range in 160/ 18 0 does not increase significantly for stars up to ~15M 0 (Dearborn 1992; El Eid 1994; Boothroyd et al. 1994). Thus, a differ ...
... The Al 20 3 grains exhibit a range in 16 0/ 18 0 that is larger than predicted for a suite of stars with the same starting composition (Fig. 3). The predicted range in 160/ 18 0 does not increase significantly for stars up to ~15M 0 (Dearborn 1992; El Eid 1994; Boothroyd et al. 1994). Thus, a differ ...
A classification approach to solving the cosmic reionization puzzle
... was able to form in the intergalactic medium (IGM). Cosmic reionization refers to the process in which this neutral hydrogen was put in an ionized state again. It is known that this reionization happened during the first billion years of cosmic history and that it was caused by the presence of high-e ...
... was able to form in the intergalactic medium (IGM). Cosmic reionization refers to the process in which this neutral hydrogen was put in an ionized state again. It is known that this reionization happened during the first billion years of cosmic history and that it was caused by the presence of high-e ...
Supplementary File
... indicating perfect separation. For almost 0 separation, the weights assigned to different genes were very similar for the two models. This suggested that essentially a single model would fit the entire data. For some sets of λ and τ a large separation was achieved. This suggests that one of the two ...
... indicating perfect separation. For almost 0 separation, the weights assigned to different genes were very similar for the two models. This suggested that essentially a single model would fit the entire data. For some sets of λ and τ a large separation was achieved. This suggests that one of the two ...
On the role of GRBs on life extinction in the Universe
... To estimate the effect of a GRB on life on Earth we need to know what the dangerous radiation doses are. Ruderman [1], who considered at the time the effect of a nearby SNe on Earth, realized that the most damaging effect would be the depletion of the Earth protective Ozone layer for a period of mon ...
... To estimate the effect of a GRB on life on Earth we need to know what the dangerous radiation doses are. Ruderman [1], who considered at the time the effect of a nearby SNe on Earth, realized that the most damaging effect would be the depletion of the Earth protective Ozone layer for a period of mon ...
Low-Energy Electron-Induced Chemistry of
... In the interstellar medium, UV photolysis of condensed methanol (CH3OH), contained in ice mantles surrounding dust grains, is thought to be the mechanism that drives the formation of “complex” molecules, such as methyl formate (HCOOCH3), dimethyl ether (CH3OCH3), acetic acid (CH3COOH), and glycolald ...
... In the interstellar medium, UV photolysis of condensed methanol (CH3OH), contained in ice mantles surrounding dust grains, is thought to be the mechanism that drives the formation of “complex” molecules, such as methyl formate (HCOOCH3), dimethyl ether (CH3OCH3), acetic acid (CH3COOH), and glycolald ...
An Introduction to phylum Tardigrada - Review
... groups of Tardigrades were exposed to harsh vacuum of outer space and solar UV radiation.[2] [6] After rehydrating them back on Earth, more than 68% of the subjects were protected from high-energy UV radiation and quickly revived within 30 minutes, but subsequent mortality was high; producing viable ...
... groups of Tardigrades were exposed to harsh vacuum of outer space and solar UV radiation.[2] [6] After rehydrating them back on Earth, more than 68% of the subjects were protected from high-energy UV radiation and quickly revived within 30 minutes, but subsequent mortality was high; producing viable ...
Active Transport of Uridine Through a Liquid Organic Membrane
... boronate affinity chromatography. This commonly used purhication technique utilizes bomnic acids immobilixed on solid supports for the separation of a range of biomolecules including nucleosides, nucleotides, saccharides and glycosylated proteins.11 In general, maximal binding to the commercially av ...
... boronate affinity chromatography. This commonly used purhication technique utilizes bomnic acids immobilixed on solid supports for the separation of a range of biomolecules including nucleosides, nucleotides, saccharides and glycosylated proteins.11 In general, maximal binding to the commercially av ...
Jupiter
... the projected shower axis pass no deeper than a pressure of 1000 mbar, at which Lindal et al. (1981) found the S-band signal from the Voyager 1 probe at 2.3 GHz to be extinguished due to absorption by ammonia. Between these two altitudes we find a range of ∆R = 57 km as shown in Figure 6. The lower ...
... the projected shower axis pass no deeper than a pressure of 1000 mbar, at which Lindal et al. (1981) found the S-band signal from the Voyager 1 probe at 2.3 GHz to be extinguished due to absorption by ammonia. Between these two altitudes we find a range of ∆R = 57 km as shown in Figure 6. The lower ...
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.