Results 81 to 90 of about 24,517 (227)

Riqueza de espécies de sub-bosque de um fragmento de Floresta Ombrófila Mista em Tijucas do Sul, PR [PDF]

open access: yesCiência Florestal, 2004
This study was done in a 6 ha fragment of Mixed Ombrophilous Forest in the county of Tijucas do Sul, - Paraná. Its aim was the elaboration of a sub-canopy species catalog and evaluation of the perturbation of anthropic impacts on the composition of ...
Dieter Liebsch, Luiz Antonio Acra
doaj   +1 more source

Efflux Pump Gene Expression in Erwinia chrysanthemi Is Induced by Exposure to Phenolic Acids

open access: yesMolecular Plant-Microbe Interactions, 2007
Salicylic acid (SA) is an important signaling molecule in local and systemic plant resistance. Following infection by microbial pathogens and the initial oxidative burst in plants, SA accumulation functions in the amplification of defense gene expression.
Ramani S. Ravirala   +12 more
doaj   +1 more source

Contributions of mutations in acrR and marR genes to organic solvent tolerance in Escherichia coli [PDF]

open access: yes, 2012
The AcrAB-TolC efflux pump is involved in maintaining intrinsic organic solvent tolerance in Escherichia coli. Mutations in regulatory genes such as marR, soxR, and acrR are known to increase the expression level of the AcrAB-TolC pump. To identify these
Noriyuki Doukyu, Rei Watanabe
core   +1 more source

Determining the strength of 3D printed concrete with the modified slant shear test

open access: yesStructural Concrete, Volume 26, Issue 3, Page 2467-2486, June 2025.
Abstract This study deals with the assessment of the load‐bearing capacity of layered 3D printed concrete (3DPC) using a modified slant shear test (MSST) to define a Mohr's envelope. To this aim, the established modified Coulomb yield condition of the concrete is complemented by a Coulomb failure criterion of the layer joints (cold or dry joints).
Lucia Licciardello   +3 more
wiley   +1 more source

A Review of In Silico and In Vitro Approaches in the Fight Against Carbapenem‐Resistant Enterobacterales

open access: yesJournal of Clinical Laboratory Analysis, Volume 39, Issue 9, May 2025.
This review highlights computational approaches for discovering antimicrobials against carbapenem‐resistant Enterobacterales. It outlines methods like pharmacophore modeling, molecular docking, and absorption, distribution, metabolism, and excretion–toxicity (ADMET) analysis, integrated with in vitro assays, to identify and validate potential drugs ...
Muhammad Absar   +7 more
wiley   +1 more source

On the theory of the ceramic densification process an of recrystallization in colloidal solutions [PDF]

open access: yes, 1972
In a short survey the analogy between the theories on diffusion in solids and in solutions is shown. As a result, analogous theories are developed for the ceramic sintering process and the recrystallization in colloidal solutions.
Jonker, G.H.
core   +2 more sources

The Study of Escherichia coli as Antimicrobial‐Resistant Sentinel Microorganism Isolated in the Farms of Three Districts of Ankara by MALDI‐TOF MS and Genomic Analysis

open access: yesVeterinary Medicine and Science, Volume 11, Issue 3, May 2025.
The antibiotic susceptibility of Escherichia coli isolates isolated from faeces and soil samples collected from farms in three districts where livestock farming activities are intensively carried out via phenotypic and genotypic methods and the presence of extended‐spectrum beta‐lactamases (ESBLs) via a double‐disc synergy test. Only one E. coli strain
Didem Karademir   +4 more
wiley   +1 more source

The ins and outs of RND efflux pumps in Escherichia coli [PDF]

open access: yes, 2015
Infectious diseases remain one of the principal causes of morbidity and mortality in the world. Relevant authorities including the WHO and CDC have expressed serious concern regarding the continued increase in the development of multidrug resistance ...
João Anes   +3 more
core   +1 more source

Fibroblast growth factor 23 predicts incident diabetic kidney disease: A 4.6‐year prospective study

open access: yesDiabetes, Obesity and Metabolism, Volume 27, Issue 4, Page 2232-2241, April 2025.
Abstract Aims Fibroblast growth factor (FGF) 23 is a bone‐derived phosphaturic hormone that participates in the regulation of mineral metabolism and the development of chronic kidney disease. This study aimed to investigate the association between FGF23 and diabetic kidney disease (DKD) in a community‐based prospective cohort.
Dan Liu   +14 more
wiley   +1 more source

Structures of Class I and Class II Transcription Complexes Reveal the Molecular Basis of RamA‐Dependent Transcription Activation

open access: yesAdvanced Science, 2022
Transcription activator RamA is linked to multidrug resistance of Klebsiella pneumoniae through controlling genes that encode efflux pumps (acrA) and porin‐regulating antisense RNA (micF). In bacteria, σ70, together with activators, controls the majority
Min Hao   +8 more
doaj   +1 more source

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