368 research outputs found

    Sperm function test

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    With absolute normal semen analysis parameters it may not be necessary to shift to specialized tests early but in cases with borderline parameters or with history of fertilization failure in past it becomes necessary to do a battery of tests to evaluate different parameters of spermatozoa. Various sperm function tests are proposed and endorsed by different researchers in addition to the routine evaluation of fertility. These tests detect function of a certain part of spermatozoon and give insight on the events in fertilization of the oocyte. The sperms need to get nutrition from the seminal plasma in the form of fructose and citrate (this can be assessed by fructose qualitative and quantitative estimation, citrate estimation). They should be protected from the bad effects of pus cells and reactive oxygen species (ROS) (leukocyte detection test, ROS estimation). Their number should be in sufficient in terms of (count), structure normal to be able to fertilize eggs (semen morphology). Sperms should have intact and functioning membrane to survive harsh environment of vagina and uterine fluids (vitality and hypo-osmotic swelling test), should have good mitochondrial function to be able to provide energy (mitochondrial activity index test). They should also have satisfactory acrosome function to be able to burrow a hole in zona pellucida (acrosome intactness test, zona penetration test). Finally, they should have properly packed DNA in the nucleus to be able to transfer the male genes (nuclear chromatic decondensation test) to the oocyte during fertilization

    Correction: Corrigendum: Lipid-II Independent Antimicrobial Mechanism of Nisin Depends On Its Crowding And Degree Of Oligomerization

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    Scientific Reports 6: Article number: 37908; published online: 29 November 2016; updated: 10 February 2017. The original version of this Article contained an error in the spelling of the author Pankaj Ror which was incorrectly given as Pankaj Kumar. This has now been corrected in the PDF and HTML versions of the Article.</jats:p

    LSE Lit Fest 2017 book review: age of anger: a history of the present by Pankaj Mishra

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    How can we explain the apparent rise in hatred in societies around the world? In Age of Anger: A History of the Present, Pankaj Mishra offers a take on our current predicament by tracing increased disaffection, disappointment and disillusionment back through to the eighteenth century. Packed with references drawn from various disciplines and eras, this is a book whose insights deserve thorough contemplation as we search for answers to our ‘age of anger’, writes Kate Bailey. On Tuesday 14 February 2017, author Pankaj Mishra spoke about Age of Anger for the LSE Space for Thought Literary Festival 2017. This year’s theme is Revolutions – not only marking the centenary of the Russian Revolution, but also other anniversaries of revolutions in literature, international relations, politics, religion and science. Tickets to all events are free and available here

    Optimising charged Higgs boson searches at the Large Hadron Collider across bb¯W± final states

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    AbstractIn the light of the most recent data from Higgs boson searches and analyses, we re-assess the scope of the Large Hadron Collider in accessing heavy charged Higgs boson signals in bb¯W± final states, wherein the contributing channels can be H+→tb¯, hW±, HW± and AW±. We consider a 2-Higgs Doublet Model Type-II and we assume as production mode bg→tH−+c.c., the dominant one over the range MH±≥480 GeV, as dictated by b→sγ constraints. Prospects of detection are found to be significant for various Run 2 energy and luminosity options

    Isolation and Identification of Crude Triacontanol from Rice Bran Wax

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    In present investigation crude triacontanol was isolated and identified from rice bran wax. Triacontanol was isolated by saponification and extraction method. The obtained mixture is crude Triacontanol. It was analyzed by Gas Chromatography (GC) and melting point method. Purity of triacontanol was 13.33%. 1Department of Botany, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad (M.S.), India; 2Department of Botany, University of Pune, Pune (M.S.), India* Corresponding Author, Email: [email protected] Cite This Article As: Sandhya Jaybhay, Pankaj Chate and Avinash Ade. 2010. Isolation and Identification of Crude Triacontanol from Rice Bran Wax. J. Exp. Sci. 1(2): 26

    Damaged Reinforced Concrete Structures in Fire

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    This thesis has been submitted in fulfilment of the requirements for a postgraduate degree (e.g. PhD, MPhil, DClinPsychol) at the University of Edinburgh. Please note the following terms and conditions of use: • This work is protected by copyright and other intellectual property rights, which are retained by the thesis author, unless otherwise stated. • A copy can be downloaded for personal non-commercial research or study, without prior permission or charge. • This thesis cannot be reproduced or quoted extensively from without first obtaining permission in writing from the author. • The content must not be changed in any way or sold commercially in any format or medium without the formal permission of the author. • When referring to this work, full bibliographic details including the author, title, awarding institution and date of the thesis must be given

    Embryo Transfer Step by Step

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    Ovarian Cortex Freezing

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    Chapter-10 Andrology and Beyond

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