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Chemistry - Dibrugarh University
Chemistry - Dibrugarh University

... DIBRUGARH UNIVERSITY Course of Study and Scheme of Examination for B.Sc. [Major (MM)] in Chemistry under Semester programme ...
Suitable and unsuitable micro-organisms
Suitable and unsuitable micro-organisms

... may not transfer readily from one medium to another. White-spore strain may not always grow normally on standard cornmeal agar. ...
Amoebae in Moisture- Damaged Buildings
Amoebae in Moisture- Damaged Buildings

... growth in building structures, structural components or on the surfaces of the materials (Haverinen 2002). Different aspects of the exposure linked with moisture damage have been studied, such as microbial diversity and the presence of volatile organic compounds emitted by these microbes and moisten ...
Grated Grana Padano cheese: new hints on how Original article o
Grated Grana Padano cheese: new hints on how Original article o

The PAH emission spectra of Large Magellanic Cloud H II regions
The PAH emission spectra of Large Magellanic Cloud H II regions

... In the first step of the continuum-subtraction, an underlying dust continuum was defined. For the ISOPHOT spectra, the spline points for this continuum were located at ∼5.8 µm, in the 9–10 µm region, and at the blue base of the [S iv] 10.5 µm line. The wavelength coverage of ISOPHOT (ending at 11.6 ...
PDF only - at www.arxiv.org.
PDF only - at www.arxiv.org.

... Recently, the available data on all RGs with redshift larger than two and with the measured degree of linear polarization larger than 5% in the UV (at ∼ 1300 Å) have been reexamined, and no rotation within a few degrees in the polarization for any of these eight RGs has been found.25 In addition, a ...
Influence of Aerobic and Phototrophic Growth
Influence of Aerobic and Phototrophic Growth

... I ,dbisphosphate. Radiorespirometry. Radiorespirometric experiments were carried out as described by Conrad & Schlegel (1977). The washed bacteria were resuspended in mineral medium containing 0.01 % yeast extract to an extinction at 650 nm of 2 or 3. Incorporation of specifcally-labelled glucose or ...
Week 1 -- Schedule
Week 1 -- Schedule

Influence of Aerobic and Phototrophic Growth
Influence of Aerobic and Phototrophic Growth

... I ,dbisphosphate. Radiorespirometry. Radiorespirometric experiments were carried out as described by Conrad & Schlegel (1977). The washed bacteria were resuspended in mineral medium containing 0.01 % yeast extract to an extinction at 650 nm of 2 or 3. Incorporation of specifcally-labelled glucose or ...
11236005
11236005

Methanogenesis in low sulfate hot spring algal-bacterial mats
Methanogenesis in low sulfate hot spring algal-bacterial mats

... bacteria involved in anaerobic degradation. Methanogenic bacteria isolated from various temperature regimes of the mat also showed increased methane production and growth upon incubation at elevated temperatures. It appears that methanogenesis is not limited by temperature. Methane production and pr ...
Lab Handbook 1_5 - Central Manchester University Hospitals
Lab Handbook 1_5 - Central Manchester University Hospitals

Studies of dark matter in and around stars
Studies of dark matter in and around stars

... form of dark matter, a form of matter quite different from the matter we experience in every day life. The gravitational effects of this dark matter have been observed in many different ways but its true nature is still unknown. In most models, dark matter particles can annihilate with each other in ...
Chap3-Astrometry
Chap3-Astrometry

Molecular ecology of microbial mats
Molecular ecology of microbial mats

... and function and cannot be reproduced and any extrapolation of such data can be questioned. Currently, the best approach appears to be to collect several randomly chosen samples (the number depends on the structure and heterogeneity of the mat) in a chosen plot and to resample the same site at diffe ...
Was photosynthetic RuBisCO recruited by
Was photosynthetic RuBisCO recruited by

... a very slow catalyst whose turnover number is a few times per second, even when substrate is saturating [2,18]. As a consequence, the photosynthetic CO2 assimilation rate is limited by RuBisCO in plants [20,36]. To overcome these disadvantages, plants are obliged to invest a large amount of nitrogen ...


Plasma Diagnostics and Hydrodynamic Evolution of Solar Flares
Plasma Diagnostics and Hydrodynamic Evolution of Solar Flares

... cooling model. The model is found to provide a well-defined lower limit to the observed cooling time of a flare, but does not well fit the distribution. The discrepancies between the model and observations are assumed to be due to additional heating which is then compared to the flares’ overall ther ...
PSRD: Chondrules: Important, but Possibly Unfathomable
PSRD: Chondrules: Important, but Possibly Unfathomable

... stars reveal the role chondrules play in planet formation? These are important questions, and some are way harder than others to answer. Perhaps the overriding issue to settle is whether chondrules formed by a fundamental process in the solar nebula, hence provide information about planet formation, ...
MICROBIAL CR(VI) REDUCTION IN INDIGENOUS CULTURES OF BACTERIA: CHARACTERIZATION AND MODELLING
MICROBIAL CR(VI) REDUCTION IN INDIGENOUS CULTURES OF BACTERIA: CHARACTERIZATION AND MODELLING

Full text in pdf - International Microbiology
Full text in pdf - International Microbiology

Antimicrobial Activity of Fresh and Old Honey
Antimicrobial Activity of Fresh and Old Honey

... compared to control group, which is an evidence that honey is a therapeutic agent being used since ancient time throughout the world (Gulfraz et al ., 2010). The antimicrobial activity against S. saprophyticus was almost equal in fresh and old honey samples. Strept. pneumoniae was resistant to both ...
Pseudomonasa Communicative Bacteria - Sigma
Pseudomonasa Communicative Bacteria - Sigma

... Biofilm, Quorum Sensing and Antibiotic Resistance It has been observed that Pseudomonas communicate from cell to cell via the production of small molecules called acyl homoserine lactones. This way they control the gene expression responsible for the growth, virulence factors and biofilm formation. ...
A FTCE Earth Science Pre-test
A FTCE Earth Science Pre-test

... 41. It is general well known that there are nine planets in our solar system. In order from the Sun they are: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune and Pluto. From the general pattern of orbital distance from the Sun, scientist believe that there should have been a planet whe ...
Comparative Evaluation of the Limulus Assay and the Direct Gram
Comparative Evaluation of the Limulus Assay and the Direct Gram

... streak plate made with a calibrated platinum loop is a suitable alternate method requiring less time and equipment. 7 However, both methods still require skill, time, and equipment not readily available in all office or clinic settings. Consequently, several miniaturized culture devices and chemical ...
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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.
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