Results 61 to 70 of about 31,602 (271)

Evaluation of the Water Source of the Water Supply System in a Brazilian Small Municipality

open access: yesEnvironmental Quality Management, Volume 35, Issue 2, Winter 2025.
ABSTRACT There is increasing concern about water security, with the provision of water to the population in adequate quantity and quality, especially in small municipalities' Water Supply Systems (WSS). There is a risk of shortages in Mariana Pimentel, Southern Brazil, and the population has already been served by tanker trucks for various periods ...
Ivanir Medeiro Ávila   +4 more
wiley   +1 more source

Pathogenicity and virulence regulation of Vibrio cholerae at the interface of host-gut microbiome interactions

open access: yesVirulence, 2020
The Gram-negative bacterium Vibrio cholerae is responsible for the severe diarrheal pandemic disease cholera, representing a major global public health concern.
Ansel Hsiao, Jun Zhu
doaj   +1 more source

The CreC regulator of Escherichia coli, a new target for metabolic manipulations [PDF]

open access: yes, 2015
The CreBC (carbon source-responsive) two-component regulation system of Escherichia coli affects a number of functions, including intermediary carbon catabolism.
Cabrera Gomez, José Gregorio   +3 more
core   +1 more source

Legacy effects of inundation on greenhouse gas emissions and soil dynamics in forage systems

open access: yesAgronomy Journal, Volume 117, Issue 6, November/December 2025.
Abstract Soil inundation increases anaerobiosis, slows organic matter decomposition, and affects greenhouse gas production from soils. The objective of this study was to evaluate the effects of natural short‐duration recurring inundation on CO2, CH4, and N2O emissions, as well as on labile soil permanganate oxidizable carbon and autoclaved‐citrate ...
Marina Miquilini   +3 more
wiley   +1 more source

Calorimetric characterization of the stability and activity of trimethylamine‐N‐oxide (TMAO) demethylase from Methylocella silvestris BL2

open access: yesProtein Science, Volume 34, Issue 11, November 2025.
Abstract Trimethylamine‐N‐oxide (TMAO) is an organic osmolyte found in numerous species and is known to have a range of biological effects. TMAO has recently garnered attention in the medical field due to its association with cardiovascular diseases, underscoring the need for its reliable detection and quantification.
Federico Cappa   +8 more
wiley   +1 more source

Development of an ethylometer with an MQ-3 sensor for measuring ethanol in soybean seeds

open access: yesRevista Brasileira de Engenharia Agrícola e Ambiental, 2022
In the seed production sector, it is essential to use fast and practical equipment to help decision-making processes. Thus, the use of sensors that can capture information to assist in agriculture has contributed significantly to soybean cultivation ...
Jerffeson A. Cavalcante   +5 more
doaj   +1 more source

Acute-Stress Biomarkers in Three Octopodidae Species After Bottom Trawling [PDF]

open access: yes, 2019
Several Octopodidae species have a great potential for the diversification of worldwide aquaculture. Unfortunately, the lack of stress-related biomarkers in this taxon results an obstacle for its maintenance in conditions where animal welfare is of ...
Barragan-Mendez, Cristina   +6 more
core   +2 more sources

Optimizing isotopic measurement of potential free‐living nitrogen fixation in soil

open access: yesSoil Science Society of America Journal, Volume 89, Issue 6, November/December 2025.
Abstract Direct measurements of free‐living nitrogen fixation (FLNF) using 15N‐labeled dinitrogen (15N2) have been complicated by a lack of standardization regarding soil sampling and storage, and because key incubation parameters have yet to be systematically optimized. With the aim of developing a standardized protocol for laboratory assay of carbon (
Qianchen Zhou   +4 more
wiley   +1 more source

Effects of Anoxia on Amino Acid Levels in Rice Coleoptiles

open access: yesPlant Production Science, 2006
Effects of anoxia on the levels of free-amino acids were investigated in the coleoptiles of rice (Oryza sativa L.) seedlings. Rice coleoptiles are able to grow in extremely low oxygen conditions.
Hisashi Kato-Noguchi, Chinatsu Ohashi
doaj   +1 more source

Characterization of novel beta-galactosidase activity that contributes to glycoprotein degradation and virulence in Streptococcus pneumoniae.

open access: yes, 2009
The pneumococcus obtains its energy from the metabolism of host glycosides. Therefore, efficient degradation of host glycoproteins is integral to pneumococcal virulence.
Andrew, Peter W   +4 more
core   +2 more sources

Home - About - Disclaimer - Privacy