A history and the characteristics of the science of cryonics

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A history and the characteristics of the science of cryonics

A View from David W. Crippen The Science Surrounding Cryonics What the nervous system of the roundworm, frozen embryos, and extreme hypothermia tell us about preserving the mind.

DEPARTMENTS Print Cryonics InRobert Ettinger published The Prospect of Immortality, a pseudo-nonfiction book detailing the rationale and methods that could be used to successfully freeze and resuscitate a person. Since then, cryonics has captivated millions.
The Molecular Repair of the Brain A History of Cryonics by Ben Best Robert Ettinger is widely regarded as the "father of cryonics" although he often said that he would rather be the grandson. He has often been erroneously called "Doctor" and "Professor".
Necrophilia - Wikipedia Albert FishPeter Kurten [21] Dabblers have transitory opportunistic sexual relations with corpses, but this is not their preference. Category F homicidal necrophiles commit postmortem sex acts only while in a catathymic state.
The Science Surrounding Cryonics - MIT Technology Review The first whole genome to be sequenced was of the bacterium Haemophilus influenzae. The worm Caenorhabditis elegans was the first animal to have its whole genome sequenced.
Cryonics: Science or Scam? It occurs in all primitive cultures and modern world religions.

October 19, Last month, the New York Times published a front-page articl e about Kim Suozzi and her decision, at the age of 23, to have her brain cryopreserved after learning she had terminal cancer.

Her hope was to be able to preserve biological information that could someday be used to restore her mind, a practice known as cryonics. A roundworm hatches larvae after being cryopreserved. We agree there is more to the mind than the synaptic connections between neurons.

The exact molecular and electrochemical features of the brain that underlie the conscious mind remain far from completely explored. However, available evidence lends support to the possibility that brain features that encode memories and determine behavior can be preserved during and after cryopreservation.

Cryopreservation is already used in laboratories all over the world to maintain animal cells, human embryos, and some organized tissues for periods as long as three decades.

When a biological sample is cryopreserved, cryoprotective chemicals such as DMSO or propylene glycol are added and the temperature of the tissue is lowered to below the glass transition temperature typically about oC. At these temperatures, molecular activities are slowed by more than 13 orders of magnitude, effectively stopping biological time.

Researchers are attempting to preserve whole organs at ultra-low temperatures. The animal kidney at left is frozen at oC, while the kidney at right is preserved in a glass-like state called vitrification.

Although no one understands every detail of the physiology of any cell, cells of virtually every conceivable kind are successfully cryopreserved. This year, using an assay for memories of long-term odorant imprinting associations, one of us published findings that C.

Similarly, it has been shown that long-term potentiation of neurons, a mechanism of memory, remains intact in rabbit brain tissue following cryopreservation. Reversibly cryopreserving large human organs, such as hearts or kidneys, is more difficult than preserving cells but is an active area of research with important public health benefits, since it would greatly increase the supply of organs for transplant.

Efforts to improve these technologies provide indirect support for the idea that the brain, like any other organ, may be adequately cryopreserved by current methods or methods under development. For those who hope to preserve and restore the unique information-encoding features of the mind, a key question is when this information is actually lost following cardiac arrest.

It is clear from examples of emergency resuscitation that information loss occurs not at the moment heart or brain activity stops, but when the chemistry or structure of life becomes irreversibly damaged—often significantly after clinical death has been established.

Some surgical procedures also rely on intentionally arresting brain activity with the help of hypothermia.

The History of Cryonics - How Cryonics Works | HowStuffWorks

It is easy to dismiss controversial practices such as cryonics and gloss over the research surrounding them, but we should remember and even respect that prevailing views are often shown to be incorrect, and that what is impossible now may be possible in the future.

For example, Ignaz Semmelweis, the father of germ theory, was widely ignored when he proposed in the 19th century that nurses and doctors should wash their hands before treating patients.

Even today, physicians are frequently incorrect when predicting outcomes in end-of-life situations. Cryonics deserves open-minded discussion, as do mainstream efforts to understand the nature of consciousness, preserve human tissue and organs for life-saving transplants, and rescue critically injured patients by understanding the boundaries between biological life and death.

Natasha Vita-More is a professor and chair of graduate studies at the University of Advancing Technology.Cryonics is a more complex concept than simply "freezing people," and understanding it involves a number of inter-related and co-dependent disciplines, including computer science, biology, medicine and nanotechnology.

The science behind cryonics is somewhat akin to alchemy. For proof of this, one has to look no further than the Miracle Max explanation. In the movie The princess Bride, the main character, Westley, is thought to be dead.

A history and the characteristics of the science of cryonics

Cryonics (from Greek κρύος kryos meaning 'cold') is the low-temperature preservation (usually at −°C) of a human corpse, with the hope that resuscitation and restoration to life and full health may be possible in the future.

Oct 19,  · Cryonics deserves open-minded discussion, as do mainstream efforts to understand the nature of consciousness, preserve human tissue and organs for life-saving transplants, and rescue critically injured patients by understanding the boundaries between biological life and barnweddingvt.com: David W.

Crippen.

A history and the characteristics of the science of cryonics

Whole genome sequencing (also known as WGS, full genome sequencing, complete genome sequencing, or entire genome sequencing) is ostensibly the process of determining the complete DNA sequence of an organism's genome at a single time. This entails sequencing all of an organism's chromosomal DNA as well as DNA contained in the mitochondria and, for plants, in the chloroplast.

Necrophilia, also known as necrophilism, necrolagnia, necrocoitus, necrochlesis, and thanatophilia, is a sexual attraction or sexual act involving barnweddingvt.com is classified as a paraphilia by ICD10 published by WHO and the Diagnostic and Statistical Manual (DSM) of the American Psychiatric Association..

Rosman and Resnick () reviewed information from 34 cases of necrophilia describing the.

Cryonics - Wikipedia