Embryo technologies

Xem 1-13 trên 13 kết quả Embryo technologies
  • By playing a role in the near-annihilation of a species, Theodore Roosevelt, the president of the United States at the turn of the twentieth century, unwittingly laid the groundwork for the most dramatic triumph yet in the use of artificial insemination (AI) to rescue a species from extinction. In the early 1900s, waves of immigrants from Europe settled in the American Midwest. As humans transformed the land, they declared war on a perceived pest: the prairie dog.

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  • Surrogacy is an agreement in which a woman becomes pregnant and gives birth to a child for someone else. Surrogacy can be paid or unpaid, and often involves a legal contract in which the surrogate gives up parental rights to the child she births. If the surrogate’s own eggs are used through alternative insemination or IVF, she is known as the “genetic surrogate.” If embryos are created using another woman’s eggs and implanted in the surrogate, she is known as the “gestational surrogate” and has no genetic tie to the child. Hiring a surrogate in the US can...

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  • Since stem cells were first isolated from a human embryo in 1998, interest in the development of a global stem cell market has grown exponentially. Prior to this, while the existence of human embryonic stem cells had long been established, it was thought impossible to isolate them with any degree of success. The 1998 discovery opened up a new avenue of research that subsequently became one of the world’s hottest topics.

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  • The benefits and risks inherent to food technology and food safety in Europe have brought these topics to the centre of public interest in the recent years. The challenge for the future is to maintain the food sector competitive and innovative at a global level, while increasing the safety of production processes along the food chain. Therefore research priorities have to be developed at the European level which integrate these requirements into a long term perspective.

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  • The presentation "Biomass pollution basics" addresses the basics of biomass burning and introduces participants to the concept of incomplete combustion, the wide range of pollutants emitted from wood fires and stoves and typical pollutant concentrations. Two pollutants are of primary interest for both health effects and IAP monitoring: particulate matter (PM) and carbon monoxide (CO). Smaller particles (PM2.5 and PM1) are likely to be most harmful, as they penetrate deep into the human lung. Larger particles are more likely to get 'filtered' by the upper respiratory tract.

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  • One ongoing issue in translational informatics is patient privacy and the security of data. An approach that has been pursued using semantic technologies is to encode data access rules and then check all data accesses against these policies [39]. For exam- ple,apolicycangiveahospitalbillingspecialist access to data about procedures per- formed at the hospital for the purpose of insurance billing. Then, when procedure data is requested, the requester would need to show that they were a billing specialist and provide the purpose for which they want to access the data.

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  • Medical Ethics and New Technologies The rapid pace of technological advances has profound implications for medical applications far beyond their traditional roles to prevent, treat, and cure disease. Cloning, genetic engineering, gene therapy, human-computer interfaces, nanotechnology, and designer drugs have the potential to modify inherited predispositions to disease, select desired characteristics in embryos, augment "normal" human performance, replace failing tissues, and substantially prolong life span.

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  • I became aware of the subjects of this book almost by accident. In the early 1980s, when HIV/AIDS so unexpectedly came upon the world, I was invited by that fine epidemiologist turned international civil servant, Dr Jonathan Mann, to join the World Health Organisation inaugural Global Commission on AIDS. This experience threw me into close contact with some of the leaders of medical science at the time, including Robert Gallo and Luc Montagnier, the two scientists who first isolated the virus that causes AIDS.

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  • In 1990, preimplantation genetic diagnosis (PGD) was introduced as an experimental procedure to genetically screen human embryos during an in vitro fertilization (IVF) cycle (1,2). More than a decade later, PGD has become an established clinical procedure in assisted reproductive technologies with over 6500 PGD cycles performed worldwide, resulting in the birth of well over 1000 healthy babies and a pregnancy rate per transfer of approximately 24% (3).

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  • Imaging has become such an integral part of clinical care in the assisted reproductive technologies that it is difficult to imagine how in vitro fertilization (IVF) was done before we had the ability to visualize the ovaries and uterus easily.

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  • As  embryo  transfer  techniques  have  accumulated  over  long  period, many  kinds  of  books  about  embryo  transfer  on  human  and  various  animals  have  been  published.  Most  of  books  have  described  embryo  transfer  procedures  and  manipulation  protocols.

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  • Micromanipulation involves a well-integrated set of technologies in assisted reproductive technology (ART). Its applications are diagnostic as well as therapeutic, and it is practiced in mature gametes and all stages of preimplantation embryos.

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  • Since its first description by Steptoe and Edward, IVF gained popularity among both doctors and patients. There is many studies on assisted reproduction and they cover most of the related technical, laboratory as well as clinical aspects. To write a book on assisted reproduction nowadays seems very difficult due to a wide plethora of related papers and well-illustrated books. This small-sized book aims at refinement of some already known points of practical importance in infertility management particularly ART.

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