This tour gives you an opportunity to see the biggest mammals on earth, the blue whales, in their natural habitat. Get a chance to see the largest creatures on Earth – as well as fin whales, sei whales, sperm whales, orcas (killer whales), dolphins, flying fish, turtles, manta rays and whale sharks can all be seen during a whale watching trip a few miles off the South Coast of Sri Lanka. Gain more knowledge about the whales as a species from a qualified naturalist and learn to identify them. This tour gives you a responsible whale watching experience with a minimal imprint on nature. Learn more about whales and about the whales that inhabit Sri Lankan waters. Have the guidance of a qualified naturalist. Watch the whales responsibly from a safe distance with a lighter imprint on nature. DUring the trip you'll get snacks , fruits , complimentary water and breakfast.
Told from the viewpoint of a self-described competition junkie, Compete, Play, Win is a look at the psychology behind the competitive drive, a look at the sociological ramifications of acting on competitive impulses, and a book of advice on how to channel those impulses for personal gain in business, sport, and in life. In a chapter called “Sperm Wars”, author David Apostolico pinpoints conception as the beginning of our competitive nature, and discusses the competition for a mate that precedes that, setting up the idea that competition is a biological necessity, and evolution has embraced and modified that drive. In a later chapter called “Competitive Nation,” Apostolico uses himself as a test subject, entering a far-flung variety of contests (including competitive eating contests, dog shows, and drag races), in order to test how far he, as a competitive junkie, is willing to go for victory. At the end of each event, he answers a list of 10 questions, concluding with, “Can a competitive junkie ever feel truly satisfied?” Along this personal journey, Apostolico draws parallels between personal competition and competition in the business world, and imparts his firsthand knowledge of how to use the competitive drive to win at everything you do. 1. Language: English. Narrator: Alpha Trivette. Audio sample: http://samples.audible.de/bk/adbl/008350/bk_adbl_008350_sample.mp3. Digital audiobook in aax.
Men - too tired to make it go at night (or anytime)? Feel beat up? Have no libido and no interest? Are you "sexhausted"?! You know you must have low testosterone, but the docs keep telling you you're wrong. Find out why and how to make it all better. Dr. Purser uses his 30 years of practice experience and huge knowledge base to engagingly detail how you (the patient or the physician) can properly figure out low testosterone, zero libido (sex drive), and low sperm count, then how to properly (according to research and the medical literature) treat both plus get your libido running on high again (like when you were 25 and healthy). You'll quickly see why he's always voted as the most popular speaker at the many conferences at which he speaks each year! He gives the perspective of someone who's done years of endocrinology research, written tons of books on all of this, and been involved in three decades of practice. As a patient you know you want more natural options considered first (something most doctors don't seem to have a clue about), and Dr. Purser details those options (and exactly how to discover what you're low in) and references the literature as to why these must be looked at. His info is up to date (even cutting edge), easy to follow (even for physicians), and gets to the real root of the problem - you'll see why he also takes care of a lot of physicians. He leaves no stone unturned. Have your doctor (and you) follow his advice, and hopefully you'll get better quick, feel better, have better sex, and live longer with this prescribed approach. Listen and enjoy! 1. Language: English. Narrator: Dan Purser, MD. Audio sample: http://samples.audible.de/bk/acx0/038238/bk_acx0_038238_sample.mp3. Digital audiobook in aax.
Concern has been expressed over the past decades about the potential deleterious effect of both syn- thetic and natural estrogenic endocrine disruptor in the environment on the male reproductive tract including sperm quality in wildlife species and humans alike. Moreover, there is a paucity of knowledge on the mechanisms of action of sesame and other phytoestrogens in male reproductive tracts. However, most works on phytoestrogens have focused on iso- flavones and lignans from soy-based andflaxseed meals Sesame plant is an annual herbaceous oil seed plant known to man since the dawn of civilization with all its parts usefully consumed as staple food and has lots of benefits in folk's medicine in Africa and Asia for thousands of years now.This book gives insight into the beneficial impacts such as sperm enhancing and improving performance qualities inherent in sesame leaves phytoestrogenic-lignans consumption on the male reproductive organs. In addition,the mechanisms responsible for the reproductive enhancing impacts of sesame leaves consumption would be explored.This book is useful to health professionals, scientists, researchers and general public.
This book discusses the basic knowledge about fertility in mammalian males and females. The authors listed and discussed the latest methods of fertility assessment such as, Computer-Assisted semen analysis 'CASA' and chromatin and DNA integrity. Discussed traditional methods are seminal plasma & sperm membrane proteins, sperm migration, sperm plasma membrane integrity, acrosomal integrity, capacitation status, sperm morphology, viability, sperm concentration, sperm motility, ejaculate volume, morphological and physiological characteristics of both sexes reproductive systems and their impact on fertility. Results on recent semen assessment and female fertility research on human populations, besides, many farm animals are presented. Also, taking a glimpse of history and steps of artificial insemination along with a brief overview of some genetic frontiers and management factors affecting fertility. This information is necessary for measuring fertility or semen quality.
Research on semen preservation has a history dating back over two centuries. Although much work has been done within the last forty years, only incremental improvements in techniques used to cryopreserve spermatozoa have been made. Because frozen bovine spermatozoa are used routinely for artificial insemination (Al) of virtually al1 dairy cows in most agriculturally advanced countries, there is a general misconception that the procedures used to cryopreserve bovine spermatozoa are successful and highly efficient. This is an overly optimistic view of sperm cryopreservation, since there remain several problems with these procedures. One problem well recognized in the Al industry is that there are significant differences among bulls with respect to the sensitivity of their spermatozoa to cryopreservation. With increasing international competition in the dairy industry, this and other limitations of current methods of sperm cryopreservation are no longer economically acceptable. Unfortunately, is limited, and the our current knowledge regarding the nature of cryoinjury unusual morphology and physiology of spermatozoa make them a particularly difficult cell to investigate.
Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online.Sexual selection is the theory proposed by Charles Darwin that states that certain evolutionary traits can be explained by intraspecific competition. Darwin defined sexual selection as the effects of the "struggle between the individuals of one sex, generally the males, for the possession of the other sex". Biologists today distinguish between "male to male combat" (it is usually males who fight each other), "mate choice" (usually female choice of male mates) and sexual conflict. Traits selected by male combat are called secondary sexual characteristics (including horns, antlers, etc.) and sometimes referred to as "weapons", and traits selected by mate choice are called "ornaments". Much attention has been given to cryptic female choice, a phenomenon in internally fertilising animals such as mammals and birds, where a female will get rid of a male''s sperm without his knowledge. The equivalent in male-to-male combat is sperm competition.
Intensive treatment regimens now result in long-term survival of more than 70% of children with cancer. This has come to the cost of late adverse effects among which infertility is a major burden. There are thus urgent needs of novel strategies for fertility preservation. In animals fertility can be restored by autotransplantation of cryopreserved testicular cells into the testis or by xenografting of testicular tissue into intermediate host animals to retrieve functional sperm. However, the safety of such approaches has not been well investigated. This study evaluated the putative risks with use of testis tissue from leukemic donors for transplantation, potential production of sperm from such grafts, and the possibility of eliminating contaminated leukemic cells in testicular samples. Advances in the field of fertility preservation, future research directions and how to retrieve testicular tissue by biopsy before cancer treatment are discussed. This book provides an overview for pediatric oncologists and basic knowledge for scientists and a lay audience with interest in the field.
Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Y: The Last Man is a comic book series by Brian K. Vaughan and Pia Guerra, about the only man to survive the apparent simultaneous death of every male mammal (barring the same man''s pet monkey) on Earth. The series was published in sixty issues by Vertigo and collected in a series of 10 paperback volumes. The series'' covers were primarily by J. G. Jones and Massimo Carnevale. On July 17, 2002, something (referred to as a plague) simultaneously kills every mammal possessing a Y chromosome including embryos, fertilized eggs, and even sperm. The only exceptions appear to be Yorick Brown, a young amateur escape artist, and his Capuchin monkey, Ampersand. Society is plunged into chaos as infrastructures collapse, and the surviving women everywhere try to cope with the loss of the men, their survivor guilt, and the knowledge that - barring a rapid, major scientific breakthrough or other extraordinary happening - humanity is doomed to extinction.