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           Search results for: 2-Amino-4-chloro-5-nitropyridine C5H4ClN3O2 CAS: 24484-96-6   

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#29055859   2017/10/22 Save this To Up

Flavins mediate extracellular electron transfer in Gram-positive Bacillus megaterium strain LLD-1.

The extracellular electron transfer (EET) mechanism of an isolated Gram-positive Bacillus megaterium strain (LLD-1), identified by 16S rRNA gene sequencing and physiological analysis, was investigated in the present study. The electrochemical activity of strain LLD-1 was confirmed by electrochemical E-t and amperometric I-t tests. Flavins in culture suspension from strain LLD-1 were further proved to be able to act as electron shuttles, strengthening the electron transfer from LLD-1 to the electrode. The output voltage and current output were increased 2.8 times and 3.7 times, respectively, by adding 100nM exogenetic flavins into microbial fuel cells inoculated with LLD-1. Electricity generation by LLD-1 from different carbon sources can be enhanced by adding 100nM exogenetic flavins. This study indicated that flavins were essential to the EET process of the Gram-positive strain LLD-1. Furthermore, a putative EET model for B. megaterium strain LLD-1 and even for Gram-positive bacteria was proposed.

1827 related Products with: Flavins mediate extracellular electron transfer in Gram-positive Bacillus megaterium strain LLD-1.

Beta Amyloid (42) ELISA K Beta Amyloid (1 40) ELISA Beta Amyloid (40) ELISA K Beta Amyloid (1 40) ELISA Isorbin (Fixed and killed Isorbin (Fixed and killed Isorbin (Fixed and killed Isorbin (Fixed and killed Homogenizer for 24 sample Mouse Anti-Gram Positive Interleukin-34 IL34 (N-t Interleukin-34 IL34 anti

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#29055588   2017/10/22 Save this To Up

Contrasting effects of environmental change on the radial growth of co-occurring beech and fir trees across Europe.

Under predicted climate change, native silver fir (Abies alba) and European beech (Fagus sylvatica) are the most likely replacement species for the Norway spruce (Picea abies) monocultures planted across large parts of continental Europe. Our current understanding of the adaptation potential of fir-beech mixed forests to climate change is limited because long-term responses of the two species to environmental changes have not yet been comprehensively quantified. We compiled and analysed tree-ring width (TRW) series from 2855 dominant, co-dominant, sub-dominant and suppressed fir and beech trees sampled in 17 managed and unmanaged mixed beech-fir forest sites across Continental Europe, including Bosnia and Herzegovina, Germany, Italy, Romania and Slovakia. Dendroecological techniques that combine various detrending methods were used to investigate variation in radial growth of co-occurring fir and beech trees. Coincidental with peak SO2 emissions, the growth of silver fir declined between 1950 and 1980 at most sites, whereas beech growth increased during this period. Correspondent to a significant warming trend from 1990-2010, average beech growth declined, but silver fir growth increased. Long-term growth patterns and growth-climate sensitivity of fir and beech trees did not significantly differ between managed and unmanaged forests. Multi-decadal changes in the growth rate of all vertical tree classes were similar. In contrast to previous indications of limited drought susceptibility of beech mixed stands, this study suggests that the mixture of tree species in forest stands does not necessarily prevent growth depressions induced by long-term environmental change. Our results further imply that forest management does not necessarily alter their sensitivity to environmental changes.

2845 related Products with: Contrasting effects of environmental change on the radial growth of co-occurring beech and fir trees across Europe.

Ofloxacin CAS Number [824 Bcl-2 Oncoprotein; Clone Bcl-2 Oncoprotein; Clone c-erbB-2 Oncoprotein c-erbB-2 Oncoprotein c-erbB-3 Oncoprotein; Cl c-erbB-3 Oncoprotein; Cl c-erbB-2 Oncoprotein; Cl c-erbB-2 Oncoprotein; Cl c-erbB-2 Oncoprotein; Cl c-erbB-2 Oncoprotein; Cl Bcl-2 Oncoprotein; Clone

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#29055575   2017/10/22 Save this To Up

Review of levoglucosan in glacier snow and ice studies: Recent progress and future perspectives.

Levoglucosan (LEV) in glacier snow and ice layers provides a fingerprint of fire activity, ranging from modern air pollution to ancient fire emissions. In this study, we review recent progress in our understanding and application of LEV in glaciers, including analytical methods, transport and post-depositional processes, and historical records. We firstly summarize progress in analytical methods for determination of LEV in glacier snow and ice. Then, we discuss the processes influencing the records of LEV in snow and ice layers. Finally, we make some recommendations for future work, such as assessing the stability of LEV and obtaining continuous records, to increase reliability of the reconstructed ancient fire activity. This review provides an update for researchers working with LEV and will facilitate the further use of LEV as a biomarker in paleo-fire studies based on ice core records.

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Androgen Receptor (Phosph Androgen Receptor (Phosph Rabbit Anti-Human Androge Rabbit Anti-Human Androge Androgen Receptor (Ab 650 AZD-3514 Mechanisms: Andr 17β-Acetoxy-2α-bromo-5 (5α,16β)-N-Acetyl-16-[2 (5α,16β)-N-Acetyl-16-ac 5α-N-Acetyl-2'H-androst- 5α-N-Acetyl-2'H-androst- 3-O-Acetyl 5,14-Androstad

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#29055163   2017/10/21 Save this To Up

Microbial sensor for drug susceptibility testing of Mycobacterium tuberculosis.

Drug susceptibility testing (DST) of clinical isolates of Mycobacterium tuberculosis (M. tuberculosis) is critical in treating tuberculosis. We demonstrate the possibility of using a microbial sensor to perform DST of M. tuberculosis and shorten the time required for DST.

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Mycobacterium tuberculosi Rabbit Polyclonal to Myco Mycobacterium Tuberculosi Cellufine Formyl , 50 ml Cellufine Formyl Media Cellufine Formyl , 500 ml Cellufine Formyl Media Cellufine Formyl Media Formalin Solution (20%) Formalin Solution (20%) Formalin Solution (20%) Formalin (10% Neutral Bu

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#29054873   2017/10/21 Save this To Up

The enigmatic genome of an obligate ancient Spiroplasma symbiont in a hadal holothurian.

Protective symbiosis has been reported in many organisms, but the molecular mechanisms of the mutualistic interactions between the symbionts and their host are unclear. Here, we sequenced the 424-Kbp genome of "Candidatus Spiroplasma holothuricola" that dominated the hindgut microbiome of a sea cucumber, a major scavenger captured in the Mariana trench (6140m depth). Phylogenetic relationships indicated that the dominant bacterium in the hindgut was derived from a basal group of Spiroplasma sp. In this organism, the genes responsible for biosynthesis of amino acids, glycolysis and sugar transporters were lost, strongly suggesting endosymbiosis. The highly decayed genome consists of two chromosomes and harbors genes coded for proteolysis, microbial toxin, restriction-methylation systems and clustered regularly interspaced short palindromic repeats (CRISPRs), composed of three cas genes and 76 CRISPR spacers. The holothurian host is probably protected against invading viruses from sediments by the CRISPRs/Cas and restriction systems of the endosymbiotic spiroplasma. The protective endosymbiosis indicates the important ecological role of the ancient Spiroplasma symbiont in maintenance of hadal ecosystems.IMPORTANCESea cucumbers are major inhabitants in hadal trenches. They collect microbes in surface sediment and remain tolerant against potential pathogenic bacteria and viruses. This study presents the genome of endosymbiotic spiroplasmas in the gut of sea cucumber captured in the Mariana trench. The extreme reduction of the genome and loss of essential metabolic pathways strongly support its endosymbiotic life mode. Moreover, a considerable part of the genome was occupied by CRISPR/Cas system to provide immunity against viruses and antimicrobial toxin-coding genes for degradation of microbes. This novel species of Spiroplasma is probably an important protective symbiont for the sea cucumbers in the hadal zone.

1403 related Products with: The enigmatic genome of an obligate ancient Spiroplasma symbiont in a hadal holothurian.

FDA Standard Frozen Tissu FDA Standard Frozen Tissu FDA Standard Frozen Tissu FDA Standard Frozen Tissu FDA Standard Frozen Tissu FDA Standard Frozen Tissu Multiple organ tumor tiss Interleukin-34 IL34 (N-t Interleukin-34 IL34 anti ING1B antisense HIV 1 intergase antigen. Anti AGO2 Human, Monoclon

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#29054811   2017/10/21 Save this To Up

Molecular phylogeny of bladderworts: a wide approach of Utricularia (Lentibulariaceae) species relationships based on six plastidial and nuclear DNA sequences.

The carnivorous plant genus Utricularia L. (bladderwort) comprises about 240 species distributed worldwide and is traditionally classified into two subgenera (Polypompholyx and Utricularia) and 35 sections, based mainly on general and trap morphology. It is one out of the largest carnivorous genera, representing ca. 30% of all carnivorous plant species, and is also the most widely distributed. According to previous phylogenetic studies, most infrageneric sections are monophyletic, but there are several incongruences considering their relationships and also the dissenting position of some species as a result of a too few (mostly one or two) molecular markers analyzed. Thus, here we present a multilocus phylogeny for Utricularia species with a wide taxonomic sampling (78 species and 115 accessions) based on six plastid (rbcL, matK, rpl20-rps12, rps16, trnL-F) and nuclear DNA (ITS region) sequences. The aim is to reconstruct a well-resolved tree to propose evolutionary and biogeographic hypotheses for the radiation of lineages with inferences about the divergence times of clades using a molecular clock approach.

1588 related Products with: Molecular phylogeny of bladderworts: a wide approach of Utricularia (Lentibulariaceae) species relationships based on six plastidial and nuclear DNA sequences.

Androgen Receptor (Phosph Androgen Receptor (Phosph DNA PKcs (Phospho Thr2609 Androgen Receptor (Ab 650 DNA PKcs (Ab 2609) Antibo DNAI2 antibody Source Rab DNAJB2 antibody Source Ra DNAJC7 antibody Source Ra DNAJA2 antibody Source Ra DNA ligase 3 antibody Sou DNAJB6 antibody Source Ra DNA pol delta cat antibod

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#29054725   2017/10/21 Save this To Up

Accelerometer-Based and Computer-Assisted Navigation in Total Knee Arthroplasty: A Reduction in Mechanical Axis Outliers Does Not Lead to Improvement in Functional Outcomes or Quality of Life When Compared to Conventional Total Knee Arthroplasty.

Accelerometer-based navigation (ABN) is a novel navigation system that attempts to combine the accuracy of computer-assisted surgery (CAS) with the familiarity of conventional instrumentation (CON). No studies have compared the clinical outcomes of this new technology with existing techniques to date.

1846 related Products with: Accelerometer-Based and Computer-Assisted Navigation in Total Knee Arthroplasty: A Reduction in Mechanical Axis Outliers Does Not Lead to Improvement in Functional Outcomes or Quality of Life When Compared to Conventional Total Knee Arthroplasty.

Cell Meter™ Fluorimetri FDA Standard Frozen Tissu FDA Standard Frozen Tissu FDA Standard Frozen Tissu FDA Standard Frozen Tissu Cell Meter™ Fluorimetri Oral squamous cell cancer ELISA Mouse , Interleukin Recombinant Human Interfe Homogenizer for 24 sample Top five cancer tissue ar Goat Anti-Human TOM1L1 SR

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#29054643   2017/10/21 Save this To Up

Polycyclic aromatic hydrocarbons in the urban atmosphere of Nepal: Distribution, sources, seasonal trends, and cancer risk.

Atmospheric polycyclic aromatic hydrocarbons (PAHs) in urban areas have always been a global concern, as these areas are considered to be the source region. Despite studies on the concentrations of PAHs in water, soils and sediments, knowledge of the distribution patterns, seasonality and sources of PAHs in urban areas of Nepal remains limited. In this study, polyurethane foam passive air samplers were used to measure gas-phase PAH concentrations over different land types in three major cities of Nepal-namely, Kathmandu (the capital) and Pokhara (both densely populated cities), and Hetauda (an agricultural city). The average concentrations of ∑15PAHs in ng/m(3) were 16.1±7.0 (6.4-28.6), 14.1±6.2 (6.8-29.4) and 11.1±9.0 (4.1-38.0) in Kathmandu, Pokhara and Hetauda, respectively. Molecular diagnostic ratio analysis suggested that fossil fuel combustion was a common PAH source for all three cities. In addition to this, coal combustion in Kathmandu, vehicle emissions in Pokhara, and grass/wood combustion in Hetauda were also possible sources of PAHs. In terms of cancer risk from PAH inhalation, a religious site with intense incense burning, a brick production area where extensive coal combustion is common, and a market place with heavy traffic emission, were associated with a higher risk than other areas. There were no clear seasonal trends in atmospheric PAHs. The estimated cancer risk due to inhalation of gas-phase PAHs exceeded the USEPA standard at >90% of the sites.

2927 related Products with: Polycyclic aromatic hydrocarbons in the urban atmosphere of Nepal: Distribution, sources, seasonal trends, and cancer risk.

Cancer Apoptosis Phospho- Top five cancer tissue ar Multiple organ cancer tis Lung cancer tissue array, Lung cancer tissue array Colon cancer and normal t Colon cancer and normal t Colon cancer, metastasize Colon cancer and matched Colon cancer tissue array Rectum disease spectrum ( Kidney disease spectrum (

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#29054623   2017/10/21 Save this To Up

From headwaters to estuary: Distribution and fate of halogenated flame retardants (HFRs) in a river basin near the largest HFR manufacturing base in China.

With the gradual phasing out of polybrominated diphenyl ethers (PBDEs), market demands for alternative halogenated flame retardants (HFRs) are increasing. The Laizhou Bay area is the biggest manufacturing base for brominated flame retardants (BFRs) in China, and the Xiaoqing River is the largest and most heavily contaminated river in this region. Water and sediment samples were collected from the headwaters to the estuary of the Xiaoqing River to investigate the distribution and fate of HFRs [i.e., PBDEs, alternative brominated flame retardants (aBFRs) and dechlorane plus (DPs). In the water samples, DPs was the most abundant flame retardant (median: 11.7ng/L), followed by decabromodiphenylethane (DBDPE) (5.92ng/L). In the sediment samples, DBDPE was the predominant flame retardant (39.5ng/g dw), followed by decabromodiphenyl ether (BDE 209) (2.81ng/g dw). The levels of DBDPE exceeded those of BDE 209 in most samples, indicating the overwhelming replacement of BDE 209 by DBDPE in this area. In the river section of this study, point source and atmospheric deposition followed by land runoff were the major factors influencing the distribution of HFRs, whereas in the estuary, riverine discharge, the estuarine maximum turbidity zone (MTZ), and hydrodynamic parameters played more important roles. Manufacturing is a significant source of contamination of the Xiaoqing River basin through atmospheric deposition and wastewater discharge.

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FDA Standard Frozen Tissu FDA Standard Frozen Tissu FDA Standard Frozen Tissu FDA Standard Frozen Tissu Recombinant Human Interfe Cell Meter™ Fluorimetri Cell Meter™ Fluorimetri Homogenizer for 24 sample Top five cancer tissue ar Thermal Shaker with cooli Goat Anti-Human TOM1L1 SR FDA Standard Frozen Tissu

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#29054074   2017/10/20 Save this To Up

Temperature dependence of bioelectrochemical CO2 conversion and methane production with a mixed-culture biocathode.

This study evaluated the effect of temperature on methane production by CO2 reduction during microbial electrosynthesis (MES) with a mixed-culture biocathode. Reactor performance, in terms of the amount and rate of methane production, current density, and coulombic efficiency, was compared at different temperatures. The microbial properties of the biocathode at each temperature were also analyzed by 16S rRNA gene sequencing. The results showed that the optimum temperature for methane production from CO2 reduction in MES with a mixed-culture cathode was 50°C, with the highest amount and rate of methane production of 2.06±0.13mmol and 0.094±0.01mmolh(-1), respectively. In the mixed-culture biocathode MES, the coulombic efficiency of methane formation was within a range of 19.15±2.31% to 73.94±2.18% due to by-product formation at the cathode, including volatile fatty acids and hydrogen. Microbial analysis demonstrated that temperature had an impact on the diversity of microbial communities in the biofilm that formed on the MES cathode. Specifically, the hydrogenotrophic methanogen Methanobacterium became the predominant archaea for methane production from CO2 reduction, while the abundance of the aceticlastic methanogen Methanosaeta decreased with increased temperature.

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ReadiLink™ mFluor™ Vi ReadiLink™ mFluor™ Vi Androgen Receptor (Phosph Androgen Receptor (Phosph ASPARAGINE BROTH Dehydrat Mouse Anti-VZV (mixed epi Rabbit Anti-Human Androge Rabbit Anti-Human Androge Ro 31-8220 methanesulfona Ro 31-8220 methanesulfona Androgen Receptor (Ab 650 Glucose Assay With the La

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