Results 11 to 20 of about 1,676,115 (338)

How do Planktonic Particle Collection Methods Affect Bacterial Diversity Estimates and Community Composition in Oligo-, Meso- and Eutrophic Lakes?

open access: yesFrontiers in Microbiology, 2020
Particles are hotspots of bacterial growth and nutrient recycling in aquatic ecosystems. In the study of particle-attached (PA) and/or free-living (FL) microbial assemblages, the first step is to separate particles from their surrounding water columns ...
Guijuan Xie   +7 more
doaj   +1 more source

An ultra scale-down analysis of the recovery by dead-end centrifugation of human cells for therapy. [PDF]

open access: yes, 2014
An ultra scale-down method is described to determine the response of cells to recovery by dead-end (batch) centrifugation under commercially defined manufacturing conditions.
Delahaye, M   +3 more
core   +1 more source

Factors affecting sperm recovery rates and survival after centrifugation of equine semen [PDF]

open access: yes, 2012
Conventional centrifugation protocols result in important sperm losses during removal of the supernatant. In this study, the effect of centrifugation force (400 or 900 × g), duration (5 or 10 min), and column height (20 or 40 mL; Experiment 1); sperm ...
Eilts, B. E.   +4 more
core   +2 more sources

Utilization of Aloe Vera Extract as A Natural Coagulant and its Effect on The Characteristics of IRR 118 Clone Rubber

open access: yesJurnal Rekayasa Kimia & Lingkungan, 2023
Rubber is one of the plantation products as a foreign exchange earner for the country. The process of processing rubber requires coagulants to accelerate coagulation.
Feerzet Achmad   +5 more
doaj   +1 more source

Optimized Centrifugation Preparation Of The Platelet Rich Plasma: Literature Review.

open access: yesJournal of Stomatology Oral and Maxillofacial Surgery, 2020
Nowadays, the Platelet Rich Plasma (PRP) is frequently used for its therapeutic effects on wound healing, and this due to secretion of many growth factors. However, no standardized procedure has been set up.
B. Croisé   +5 more
semanticscholar   +1 more source

Effect of seminal plasma and egg yolk concentration on freezability of goat semen

open access: yesRevista Brasileira de Zootecnia, 2014
The objective of this study was to evaluate the effects of egg yolk and seminal plasma on the viability of cryopreserved goat semen. To this end, four fertile Saanen bucks, aged between 10 months and 1 year, and weighing 18 to 25 kg, were used. Semen was
Valéria da Silva Ferreira   +6 more
doaj   +1 more source

Sample Preparation of Posaconazole Oral Suspensions for Identification of the Crystal Form of the Active Pharmaceutical Ingredient

open access: yesMolecules, 2020
Determination of the polymorphic form of an active pharmaceutical ingredient (API) in a suspension could be really challenging because of the water phase and the low concentration of the API in this formulation.
Michail Lykouras   +3 more
doaj   +1 more source

The impact of the centrifuge characteristics and centrifugation protocols on the cells, growth factors, and fibrin architecture of a leukocyte- and platelet-rich fibrin (L-PRF) clot and membrane

open access: yesPlatelets, 2018
L-PRF (leukocyte- and platelet-rich fibrin) is one of the four families of platelet concentrates for surgical use and is widely used in oral and maxillofacial regenerative therapies.
D. M. Dohan Ehrenfest   +9 more
semanticscholar   +1 more source

Influence of the conditions for the preparation and thermal destruction of ammonium tetravanadate on the composition of oxide-vanadic electro-functional materials

open access: yesTrudy Odesskogo Politehničeskogo Universiteta, 2017
The work represents the investigation of the influence of technological stages of ammonium tetravanadate preparation on the final composition of vanadium oxide products. The purpose of experimental studies is to determine the technological parameters for
Luskan К. V.   +3 more
doaj   +1 more source

Evaluation of the Temperature and Time in Centrifugation-Assisted Freeze Concentration

open access: yesApplied Sciences, 2020
Centrifugation is a technique applied to assist in the freeze concentration of fruit juices and solutions. The aim of this work was to study the influence of the time–temperature parameters on the centrifugation process as a technique applied to assist ...
Tamara Santana   +4 more
doaj   +1 more source

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