Results 81 to 90 of about 7,502 (215)

An Integrated Approach to Recognizing Fossil Cold Seeps: Methodology and Application [PDF]

open access: yes, 2002
Methane has become an attractive answer for the anomalous and has recently been used to explain numerous carbonates, especially mud mounds, in the rock record.
Cramer, Brad
core  

The Efficacy of Methanol Extract of Garlic (Allium Sativum) to Improve Rumen Fermentation Products [PDF]

open access: yes, 2013
. This study was aimed to evaluate the effect of the increase levels of garlic extract (Allium sativum, As) in beef cattle feed on rumen fermentation products and microbial populations.
Hidayat, N. (N)   +1 more
core  

Structure of a bacterial type IV secretion core complex at subnanometre resolution [PDF]

open access: yes, 2013
Type IV secretion (T4S) systems are able to transport DNAs and/or proteins through the membranes of bacteria. They form large multiprotein complexes consisting of 12 proteins termed VirB1-11 and VirD4.
Chandran, Vidya   +10 more
core   +1 more source

Verordnungen über die Bestattungen in den mittelalterlichen und neuzeitlichen Quellen aus dem Szeklerland [PDF]

open access: yes, 2014
Written sources indicate that burials inside churches and within the churchyard enjoyed a special status throughout the Szekler region. For both Catholics and Protestants, burials in the church, mainly around the communion table, had a particular
Demjen, Andrea-Erzsebet
core  

Gating-by-tilt of mechanosensitive membrane channels

open access: yes, 2003
We propose an alternative mechanism for the gating of biological membrane channels in response to membrane tension that involves a change in the slope of the membrane near the channel. Under biological membrane tensions we show that the energy difference
A. Kloda   +15 more
core   +1 more source

Chitinase family GH18: evolutionary insights from the genomic history of a diverse protein family

open access: yesBMC Evolutionary Biology, 2007
Background Chitinases (EC.3.2.1.14) hydrolyze the β-1,4-linkages in chitin, an abundant N-acetyl-β-D-glucosamine polysaccharide that is a structural component of protective biological matrices such as insect exoskeletons and fungal cell walls.
Aronson Nathan N, Funkhouser Jane D
doaj   +1 more source

Structural diversity in the type IV pili of multidrug-resistant Acinetobacter [PDF]

open access: yes, 2016
Acinetobacter baumannii is a Gram-negative coccobacillus found primarily in hospital settings that has recently emerged as a source of hospital-acquired infections. A.
Feldman, Mario F   +10 more
core   +3 more sources

The strategic and the stratigraphic: a working paper on the dynamics of organisational evolution. [PDF]

open access: yes, 2012
Despite large debates over fundamental issues a broadly evolutionary paradigm of organisations is growing in legitimacy. It may though be preferable to replace the metaphor of the organisation as an organism with the literal assertion that both social ...
Price, Ilfryn
core  

Annotation and comparative analysis of the glycoside hydrolase genes in Brachypodium distachyon

open access: yesBMC Genomics, 2010
Background Glycoside hydrolases cleave the bond between a carbohydrate and another carbohydrate, a protein, lipid or other moiety. Genes encoding glycoside hydrolases are found in a wide range of organisms, from archea to animals, and are relatively ...
Wu Jiajie   +5 more
doaj   +1 more source

Structure, Function and Regulation of the Hsp90 Machinery

open access: yesBiomedical Journal, 2013
Heat shock protein 90 (Hsp90) is an ATP-dependent molecular chaperone which is essential in eukaryotes. It is required for the activation and stabilization of a wide variety of client proteins and many of them are involved in important cellular pathways.
Jing Li, Johannes Buchner
doaj   +1 more source

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