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A German Carpenter Invented A Switch That Can Turn Off Sperm ...

Jan 8, 2016 ... The FAQ also carries this rather sensible piece of advice: “It would be ..... The Rive brothers—who grew up with Musk in Pretoria, South Africa,...

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BBC - Future - The moral maze of using a dead man's sperm

May 19, 2016 ... The doctor cuts off a spongy piece and drops it into a vial. His assistant whisks it away. The first post-mortem sperm retrieval was in the 1970s...

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Sperm war - the sperm of ants and bees do battle inside the queens ...

Mar 18, 2010 ... Inside the queen's body, their sperm continue the battle. ... happy to see that you thought our paper was nice enough to write a piece about.

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Genetic relatedness predicts South African migrant workers ... - Nature

Mar 17, 2005 ... Data on remittances sent by South African migrant workers to their rural .... Africa's in the early 1990s earlier fecundity should be favoured over later, thus ..... sperm head, mid-piece and flagellum length are heritable, that.

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Bottom of the swimming league: Naked mole rat sperm - Phys.org

Dec 5, 2011 ... Researchers from South Africa examined the sperm of naked mole rats ... and the sperm have the smallest mid-piece of any known mammal,...

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Scientists explore the possibility of egg-free fertilization ...

Jan 6, 2017 ... When a sperm and an egg join, the egg makes changes to the sperm ... which funded the work, said: “This is an exciting piece of research,...

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Morphopathology of Sperm: It's Impact on Fertilization - SAGE Journals

in vitro fertilization (IVF) and intracytoplasmic sperm injection (ICSI). The correct identification ... Tygerberg 7505, South Africa. ... head, mid-piece and flagellum.

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Sperm whale - Wikipedia

The sperm whale (Physeter macrocephalus), or cachalot, is the largest of the toothed whales ..... A sperm whale killed 160 km (100 mi) south of Durban, South Africa after a 1-hour, ..... A piece of sperm whale skin with giant squid sucker scars.

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Ambergris - Wikipedia

Ambergris ambergrease or grey amber, is a solid, waxy, flammable substance of a dull grey or ... The sperm whale usually vomits these, but if one travels further down the gut, it will be covered in ambergris. ... A 13-kilogram (29 lb) piece of ambergris was found by two Omanis, washed up on a beach on the Fooshi shores of...

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A study of semen parameters with emphasis on sperm morphology ...

neck, mid-piece, or tail defect and no cytoplasmic droplets of more than one-half ... cology, Tygerberg Hospital, Tygerberg, Republic of South Africa. Statistical...

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Morphometric dimensions of the human sperm head depend on the ...

Apr 17, 2010 ... Key words: sperm head morphometry / Papanicolaou / Diff-Quik-like stain / SpermBluew / automated sperm .... from Sigma-Aldrich, Cape Town, South Africa and only analytical grade ..... piece green) is superimposed on it.

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Sperm structure and motility in the eusocial naked mole-rat ... - NCBI

Dec 5, 2011 ... Sperm structure and motility in the eusocial naked mole-rat, ... (1)Department of Medical Bioscience, University of the Western Cape, Bellville, South Africa. ... A distinct degenerative feature of the tail principal piece is the...

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Are Your Sperm in Trouble? - The New York Times

Mar 11, 2017 ... A sperm under the influence of an endocrine disrupting chemical in sunscreen. Because of chemicals like these, sperm have trouble swimming...

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What's Ambergris? Behind the $60k Whale-Waste Find

Sep 1, 2012 ... Sperm whales eject an intestinal slurry called ambergris into the ocean, ... The smell of ambergris itself varies from piece to piece, ranging from...

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Effect of age and season on sperm morphology of Friesland bulls at ...

The study was done at the Taurus AI station, South Africa ... that were affected by age included pyriform, knobbed acrosomes, mid-piece reflexes and dag...

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Inside Nature's Giants | PBS Programs | PBS

The team exposes the organs of a sperm whale that became stranded and died on ... Along South Africa's KwaZulu Natal coast miles of beach protection nets have ... The team piece together the puzzle of how giant squid hunt, how they jet...

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COMPARATIVE SPERM MORPHOLOGY OF THE PULMONATE ...

midpiece, a glycogen piece (axoneme sheathed by glycogen granules) ... Entomology, Rhodes University, Grahamstown 6140, South Africa. INTRODUCTION.

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comparative spermatology of four sympatric species of siphonaria

piece. Although differences between each species exist, the value of sperm morphology for purposes of ... of the eastern Cape of South Africa is inhabited.

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6 Terrifying Things Nobody Tells You About Donating Sperm

Nov 12, 2011 ... To a young guy with not much money, sperm donation seems too good to be true. ... you also need ensure you've never had with a man from Africa .... your money for the next six months, but hey, it's still a piece of cake.

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The Histidine-Rich Protamine from Ostrich and Tinamou Sperm. A ...

Republic of South Africa, Ostrich Research Centre, P.O. Box 241, Oudtshoorn ..... (C) A longitudinal section of the midpiece (Mp)/principal piece (Pp) junction.

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Are Your Sperm in Trouble? - The New York Times

Mar 11, 2017 ... A sperm under the influence of an endocrine disrupting chemical in sunscreen. Because of chemicals like these, sperm have trouble swimming...

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Ambergris - Wikipedia

Ambergris ambergrease or grey amber, is a solid, waxy, flammable substance of a dull grey or ... The sperm whale usually vomits these, but if one travels further down the gut, it will be covered in ambergris. ... A 13-kilogram (29 lb) piece of ambergris was found by two Omanis, washed up on a beach on the Fooshi shores of...

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How Much Money Should a Woman Be Paid for Egg Donation ...

Nov 4, 2015 ... If the average payment for sperm donation was $75 for an hour's worth of work, the committee ... A piece from “Live Nude Eggs,” Raquel Cool's

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Morphopathology of Sperm: It's Impact on Fertilization - SAGE Journals

in vitro fertilization (IVF) and intracytoplasmic sperm injection (ICSI). The correct identification ... Tygerberg 7505, South Africa. ... head, mid-piece and flagellum.

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The Pattern of Tyrosine Phosphorylation in Human Sperm in ...

The proportion of sperm with principal piece and principal piece plus neck .... South Africa) and Jill Stronk, Sperm Physiology Laboratory, Yale Fertility Center.

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How to Have 106 Babies (and Counting) | GQ

Oct 1, 2015 ... Meet the sperm donor who operates the old-fashioned way (!) ... baby—and in so doing complete their family with the final puzzle piece.

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South Africa Invests in Elephant Birth Control [Video] - Scientific ...

Aug 16, 2012 ... ... habitat of every piece of edible vegetation, killing all local plants and ... South Africa stopped culling in 1994 but put the option back on the table in 2008. ... pellucida vaccine (PZP)—that blocks sperm reception and is said to...

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PDF (1363 KB)

The morphology of the sperm of both species is similar. ... primitive type with a head about 1,5 I-'m long), mid-piece of five mitochondria, and ... 1n South Africa,.

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Novel organization of the spermatozoon in two ... - Reproduction

The connecting piece of the tail attaches on either the lower ventral surface as .... Occasionally two sperm heads shared a single tail or one sperm head had two .... distantly related murids, the red veld rat of South Africa (Breed et al, 1988) and,...

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There Is Now An App for Sperm Testing - Live Science

Mar 22, 2017 ... A new smartphone device can detect abnormal sperm concentration and ... The device has two parts: a box-like piece that attaches to the...

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effect of refrigeration and cryopreservation on the quality of lion ...

Sperm banking and its potential use is of particular interest in lion (Panthera leo) populations .... (South Africa), British Airways, IMV Technologies/CBS (France), NECSA, Zeiss ... sperm showing orange fluorescence over the mid-piece.

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