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Impact of post-thaw supplementation of semen extender with antioxidants on the quality and function variables of stallion spermatozoa
(ELSEVIER SCIENCE BV, 2019)
During cryopreservation procedures, the spermatozoa are exposed to physical and chemical stressors that generate an increase in the intracellular concentration of reactive oxygen species (ROS). If ROS concentrations are ...
In search of the most active MN4 catalyst for the oxygen reduction reaction. The case of perfluorinated Fe phthalocyanine
(ROYAL SOC CHEMISTRY, 2019)
Iron macrocyclic complexes (MN4) are promising catalysts for replacing platinum (the industrial standard) in electrocatalysis. In particular, FeN4 complexes have shown lower overpotential than Pt for the oxygen reduction ...
Differential source-sink manipulation affects leaf carbohydrate and photosynthesis of early- and late-harvest nectarine varieties
(BRAZILIAN SOC PLANT PHYSIOLOGY, 2019)
Source-sink balance is a major determinant of carbon partitioning within plants. Thinning is an agronomic practice that consists of changing the ratio between leaves and fruits, the source and sink plant organs, respectively. ...
Comparison of total hip arthroplasty surgical approaches by Statistical Parametric Mapping
(ELSEVIER SCI LTD, 2019)
Background: The most common surgical approaches in use for total hip arthroplasty are the lateral and posterior. When comparing these approaches in terms of gait biomechanics, studies usually rely on pre-defined discrete ...
First record of fossil procyonid (Mammalia, Carnivora) from Uruguay
(PERGAMON-ELSEVIER SCIENCE LTD, 2019)
Procyonids were the first carnivorans that arrived from North America to South America during the late Miocene, before the full emergence of the Panama Isthmus. In South America, this family comprises five living genera ...
Prevalence, molecular characterization and risk factor analysis of Ehrlichia canis and Anaplasma platys in domestic dogs from Paraguay
(ELSEVIER SCI LTD, 2019)
This is the first study to investigate the prevalence and risk factors associated with Ehrlichia canis and Anaplasma platys positivity in dogs from Paraguay. Conventional PCR assays for the E. canis 16SrRNA gene and A. ...
Alcohol and marijuana use as daily predictors of suicide ideation and attempts among adolescents prior to psychiatric hospitalization
(ELSEVIER IRELAND LTD, 2019)
Objective: Little research has been conducted on alcohol use, marijuana use, and suicide ideation and attempts on a daily level, and specifically among adolescents prior to inpatient hospitalization. The purpose of this ...
Amazonian trees show increased edge effects due to Atlantic Ocean warming and northward displacement of the Intertropical Convergence Zone since 1980
(ELSEVIER, 2019)
Recent investigations indicate a warming of Atlantic Ocean surface waters since 1980, probably influenced by anthropic actions, inducing rainfall intensification mainly during the rainy season and slight reductions during ...
Opposing action of NCoR1 and PGC-1 alpha in mitochondrial redox homeostasis
(ELSEVIER SCIENCE INC, 2019)
The ability to respond to fluctuations of reactive oxygen species (ROS) within the cell is a central aspect of mammalian physiology. This dynamic process depends on the coordinated action of transcriptional factors to ...
Polyphenols obtained from Didymosphenia geminata (Lyngbye) Schmith altered the viability and proliferation of salmonids cells lines SHK-1 and CHSE-214
(ELSEVIER SCIENCE BV, 2019)
Didymosphenia geminata (Lyngbye) Schmidt, also referred to as Didymo, is an invasive diatom that forms nuisance mats. Since it was first reported in our country in approximately 2010, Didymo has expanded and colonized ...