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24 results for “Liquid Nitrogen”

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Research ArticleOpen accessIn the abstractBiological Study Scabiosa ochroleuca Seeds Germination and Development of Methods for a Long-Term StorageSayagul Serikovna Tyrzhanova, Margarita Yulaevna Ishmuratova, Sayran Nikolayevna Atikeeva et al.The organization of a storage system for seeds of medicinal plants is an important task of introduction. Our study aimed to identify biological features during the germination of Scabiosa ochroleuca seeds and optimize the conditions for their storage and germination activation. The paper presents the results of assessing the viability of seeds of S. ochroleuca depending on the origin, size, … …OnLine Journal of Biological Sciences, Vol. 22, Issue 4 · 26 Nov 2022 · 5,092 accessesView PDFCite
Research ArticleOpen accessIn the abstractEffect of Repeated Freezing and Thawing on Nguni Sperm Parameters Evaluated by Computer Assisted Sperm Analyzer SystemMasindi Lottus Mphaphathi, Tshimangadzo Lucky NedambaleThe aims of the current study were to assess the effect of double freezing and thawing on Nguni semen parameters. Semen was collected from Nguni bulls. The Sperm Class Analyzer® system was used to evaluate sperm motility rates prior and post freezing, repeatedly. Semen samples were diluted with egg yolk citrate extender. Cooled semen samples were loaded into straws and … …American Journal of Animal and Veterinary Sciences, Vol. 16, Issue 1 · 27 Jan 2021 · 6,596 accessesView PDFCite
Research ArticleOpen accessIn the abstractStudy the Effect of Extracted Low-Density Lipoprotein from Egg Yolk on the Cryopreservation of Nguni Bull SemenMduduzi M. Tshabalala, Masindi Lottus Mphaphathi, Khathutshedzo A. Nephawe et al.The mechanism on how Egg Yolk (EY) helps sperm to survive the low temperature outside the animal body during cryopreservation and thawing process is not yet known. It is usually believed that the Low-Density Lipoprotein (LDL) is the major component that provides protection. The present study was undertaken to assess the cryo-protective effect of different concentrations (6, 8, 10 and … …American Journal of Animal and Veterinary Sciences, Vol. 16, Issue 3 · 13 Sep 2021 · 6,921 accessesView PDFCite
Research ArticleOpen accessIn the abstractEffect of the Tensioactive Agent SDS on Extender’s Boar Semen Viability after ThawingMaria Helena Moreira da Silva, Loide Valadão, Fernando Moreira da SilvaEffects of the surfactant Sodium Dodecyl Sulfate (SDS) on the motility and viability of boar semen after thawing were evaluated. For such purpose, semen of twelve adult boars was collected twice a week, the rich portion of this semen was separated and frozen with different concentrations of SDS (0; 2.5; 5; 10; 20 and 40 mM). For freezing the semen … …American Journal of Applied Sciences, Vol. 18, Issue 1 · 20 Jan 2021 · 7,797 accessesView PDFCite
Research ArticleOpen accessIn the abstractSynthesis and Characterization of Cobalt, Iron and Ruthenium Catalysts for the Production of Synthetic DieselDayna M. Ortiz Rodríguez, María del C. Cotto-Maldonado, José Duconge Hernández et al.Fossil fuels are currently the world's leading source of energy. Environmental legislations, the high price of fossil fuels, the concern about the supply of these fuels and technological development, makes it necessary to search for alternative sources of energy. The production of clean liquid fuels, such as synthetic diesel from synthesis gas, by Fischer-Tropsch (FT) method, is considered a very … …American Journal of Engineering and Applied Sciences, Vol. 13, Issue 2 · 29 Apr 2020 · 7,256 accessesView PDFCite
Research ArticleOpen accessIn the abstractMetabolic Markers of Insulin Resistance in Feline Hypertrophied Myocardium. Insulin Resistance in Heart FailureOleinikov Dmitrii ArkadievichInvestigation of myocardial tissue concentration of ATP, glucose transporters 1 and 4, pyruvate dehydrogenase, hexokinase 2, insulin receptor and adropin proteins, determining metabolic changes and possible insulin resistance in feline myocardium with hypertrophic phenotype. This is the pilot study for metabolic markers determination. Eighteen cats were studied, divided into 3 groups: Without cardiac disease (n = 5), cats with hypertrophic … …American Journal of Animal and Veterinary Sciences, Vol. 15, Issue 4 · 13 Nov 2020 · 6,332 accessesView PDFCite
Review ArticleOpen accessIn the abstractNasa Selects Concepts for a New Mission to Titan, the Moon of SaturnRelly Victoria Petrescu, Raffaella Aversa, Antonio Apicella, Florian Ion Tiberiu PetrescuNasa just has selected two new concepts for some new robotic missions, one of which aims to explore potential landing sites on Saturn’s largest moon, Titan. This first concept is named Dragonfly, which is a drone-like rotorcraft that would use the environment on Titan to fly to a number of locations to sample materials and determine surface composition to examine … …Journal of Aircraft and Spacecraft Technology, Vol. 2, Issue 1 · 19 Jan 2018 · 12,012 accessesView PDFCite
Research ArticleOpen accessIn the abstractSome Morphologic Features of Heart Failure with Different EtiologyDmitrij Arkadievich OleynikovDilated Cardiomyopathy (DCM) and Chronical Degenerative Valvular Disease (CDVD) are very common in dogs nowadays. However, due to modern level in oncology we can meet chemotherapy-induced cardiomyopathies more often. We have lack of information about pathogenic mechanisms underlying doxorubicin-induced cardiomyopathy (DoxCM) and features differentiating it from CDVD and DCM. The study population consisted of 46 dogs of different age, sex … …American Journal of Animal and Veterinary Sciences, Vol. 12, Issue 2 · 20 May 2017 · 7,334 accessesView PDFCite
Research ArticleOpen accessIn the abstractMetabolic Features of Heart Failure with Different EtiologyOleynikov Dmitrij ArkadievichDilated Cardiomyopathy (DCM) and Chronical Degenerative Valvular Disease (CDVD) are very common in dogs nowadays. However, due to modern level in oncology we can meet chemotherapy-induced cardiomyopathies more often. We have lack of information about pathogenic mechanisms underlying Doxorubicin-induced Cardiomyopathy (DoxCM) and features differentiating it from CDVD and DCM. In this study we investigate several metabolic features of doxorubicin-induced cardiomyopathy, … …American Journal of Animal and Veterinary Sciences, Vol. 12, Issue 1 · 9 Mar 2017 · 7,176 accessesView PDFCite
Research ArticleOpen accessIn the abstractBIOGAS PRODUCTION FROM TOFU LIQUID WASTE ON TREATED AGRICULTURAL WASTESBudy Rahmat, Tedi Hartoyo, Yaya SunaryaThe Tofu Liquid Waste (TLW) as a pollution might be processed into biogas which was environmentally friendly and had potential to replace burning wood or oil. However, the waste could not directly be employed as the biogas substrate due to the high nitrogen content which was not suitable to the methanogen microorganism on the biogas digester and did not produce … …American Journal of Agricultural and Biological Sciences, Vol. 9, Issue 2 · 1 Feb 2014 · 7,958 accessesView PDFCite