Results 81 to 90 of about 9,331,799 (198)

Sperm preparation for ART [PDF]

, 2003
The onset of clinical assisted reproduction, a quarter of a century ago, required the isolation of motile spermatozoa. As the indication of assisted reproduction shifted from mere gynaecological indications to andrological indications during the years ...
Schill Wolf-Bernhard, Henkel Ralf R
core   +2 more sources

Gyrotactic suppression and emergence of chaotic trajectories of swimming particles in three-dimensional flows [PDF]

, 2018
We study the effects of imposed {three-dimensional flows} on the trajectories and mixing of gyrotactic swimming micro-organisms, and identify new phenomena not seen in flows restricted to two dimensions.
Baggaley, A.W., Hill, N.A., Richardson, S.I. Heath   +2 more
core   +1 more source

Comparison of sperm parameters in swim up method with single and double washing

مجله دانشگاه علوم پزشکی گرگان, 2009
Background and Objective: There are different methods to improve sperm parmeters including swim up.Sperm washing is a basic step in This method during 2007.
Zahra Basirat (MD), Seyyed Gholamali Joorsaraee (PhD), Mehrdad Farsi (PhD)   +2 more
doaj  

Pregnancy outcome after IUI for male and idiopathic infertility using a new simplified method for sperm preparation

Middle East Fertility Society Journal, 2012
Introduction: Intrauterine insemination (IUI) is a valid treatment for infertility with a cumulative pregnancy rate of 40–90% after 3–10 treatment cycles.
Emad M. Siam
doaj   +1 more source

Improvement in quality of cryopreserved human spermatozoa by swim‐up before freezing [PDF]

International Journal of Andrology, 1994
SummarySelecting a population of spermatozoa by the swim‐up technique yields, after freezing and thawing, a population of cells that contains proportionally more spermatozoa which are morphologically normal, fewer spermatozoa with damaged tail membranes, and a greater percentage of progressively motile spermatozoa with greater velocities and amplitudes
F, Pérez-Sánchez, T G, Cooper, C H, Yeung, E, Nieschlag   +3 more
openaire   +2 more sources

Effects of flow regime on the young stages of Salmonid fishes. Conclusions based on results for 1977-1981 [PDF]

, 1981
Rivers in Teesdale and its fish population have been monitored for several years. This report briefly describes the life cycle of British salmonid fishes and indicates the main ways in which this life cycle is influenced by discharge and related effects.
Crisp, D.T.
core  

SchussenAktivplus: reduction of micropollutants and of potentially pathogenic bacteria for further water quality improvement of the river Schussen, a tributary of Lake Constance, Germany [PDF]

, 2013
The project focuses on the efficiency of combined technologies to reduce the release of micropollutants and bacteria into surface waters via sewage treatment plants of different size and via stormwater overflow basins of different types. As a model river
Amler, Klaus, Blaha, Ludek, Gallert, Claudia, Giebner, Sabrina, Güde, Hans, Henneberg, Anja, Hess, Stefanie, Hetzenauer, Harald, Jedele, Klaus, Jung, Ralph-Michael, Kneipp, Sven, Krais, Stefanie, Kuch, Bertram, Köhler, Heinz-R., Lange, Claudia, Löffler, Herbert, Maier, Diana, Metzger, Jörg, Müller, Michael, Oehlmann, Jörg, Osterauer, Raphaela, Peschke, Katharina, Raizner, Jürgen, Rault, Magali, Rey, Peter, Richter, Doreen, Sacher, Frank, Scheurer, Marco, Schneider-Rapp, Jutta, Seifan, Merav, Spieth, Markus, Triebskorn, Rita, Vogel, Hans-Joachim, Weyhmüller, Michael, Winter, Josef, Wurm, Karl   +35 more
core   +1 more source

Can Microfluidics Improve Sperm Quality? A Prospective Functional Study

Biomedicines
The same sperm selection techniques in assisted reproduction clinics have remained largely unchanged despite their weaknesses. Recently, microfluidic devices have emerged as a novel methodology that facilitates the sperm selection process with promising ...
Fernando Meseguer, Carla Giménez Rodríguez, Rocío Rivera Egea, Laura Carrión Sisternas, Jose A. Remohí, Marcos Meseguer   +5 more
doaj   +1 more source

Comparison of Direct Swim-Up, Mini-Percoll, and Sephadex G10 Separation Procedures [PDF]

Archives of Andrology, 1994
A comparison was made of three sperm separation techniques--direct swim-up, mini-Percoll, and Sephadex G-10--on semen parameters, including count, % motility, forward progression, and hypoosmotic swelling (HOS) test scores. Overall, the best quality sperm (less debris, best % and quality motility, and best HOS scores) were noted with the direct swim-up
A, Bollendorf, J H, Check, D, Katsoff, D, Lurie   +3 more
openaire   +2 more sources

Comparison of two sperm processing techniques for low complexity assisted fertilization: sperm washing followed by swim-up and discontinuous density gradient centrifugation

JBRA Assisted Reproduction, 2016
Objective This study aimed to assess and compare sperm motility, concentration, and morphology recovery rates, before and after processing through sperm washing followed by swim-up or discontinuous density gradient centrifugation in normospermic ...
C. L. Fácio, L.F. Previato, Ligiane A Machado-Paula, P. C. Matheus, E. Araújo Filho   +4 more
semanticscholar   +1 more source