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ABSTRACT Cryopreservation is a method of stabilizing the condition of someone who is terminally ill so that they can be transported to the medical care facilities that will be available in the late 21st or 22nd century. There is little dispute that the condition of a person stored at the temperature of liquid nitrogen is stable, but the process of freezing inflicts a level of damage which cannot be reversed by current medical technology.
Whether or not the damage inflicted by current methods can ever be reversed depends both on the level of damage and the ultimate limits of future medical technology. The failure to reverse freezing injury with current methods does not imply that it can never be reversed in the future, just as the inability to build a personal computer in did not imply that such machines would never be economically built.
This paper considers the limits of what medical technology should eventually be able to achieve based on the currently understood laws of chemistry and physics Technical aspects sample feasibility study the kinds of damage caused by current methods of freezing.
It then considers whether methods of repairing the kinds of damage caused by current cryopreservation techniques are likely to be achieved in the future.
This simple fact provides an imperfect time machine that can transport us almost unchanged from the present to the future: If freezing damage can someday be cured, then a form of time travel to the era when the cure Technical aspects sample feasibility study available would be possible.
While unappealing to the healthy this possibility is more attractive to the terminally ill, whose options are somewhat limited.
Far from being idle speculation, this option is available to anyone who so chooses. First seriously proposed in the 's by Ettinger there are now three organizations in the U. Perhaps the most important question in evaluating this option is its technical feasibility: Given the remarkable progress of science during the past few centuries it is difficult to dismiss cryonics out of hand.
The structure of DNA was unknown prior to ; the chemical rather than "vitalistic" nature of living beings was not appreciated until early in the 20th century; it was not until that spontaneous generation was put to rest by Louis Pasteur, who demonstrated that no organisms emerged from heat-sterilized growth medium kept in sealed flasks; and Sir Isaac Newton's Principia established the laws of motion injust over years ago.
If progress of the same magnitude occurs in the next few centuries, then it becomes difficult to argue that the repair of frozen tissue is inherently and forever infeasible.
Hesitation to dismiss cryonics is not a ringing endorsement and still leaves the basic question in considerable doubt. Perhaps a closer consideration of how future technologies might be applied to the repair of frozen tissue will let us draw stronger conclusions -- in one direction or the other.
Ultimately, cryonics will either a work or b fail to work. It would seem useful to know in advance which of these two outcomes to expect. If it can be ruled out as infeasible, then we need not waste further time on it.
If it seems likely that it will be technically feasible, then a number of nontechnical issues should be addressed in order to obtain a good probability of overall success.
The reader interested in a general introduction to cryonics is referred to other sources[23, 24, 80]. Here, we focus on technical feasibility. While many isolated tissues and a few particularly hardy organs have been successfully cooled to the temperature of liquid nitrogen and rewarmed, further successes have proven elusive.
While there is no particular reason to believe that a cure for freezing damage would violate any laws of physics or is otherwise obviously infeasibleit is likely that the damage done by freezing is beyond the self-repair and recovery capabilities of the tissue itself.
This does not imply that the damage cannot be repaired, only that significant elements of the repair process would have to be provided from an external source. In deciding whether such externally provided repair will or will not eventually prove feasible, we must keep in mind that such repair techniques can quite literally take advantage of scientific advances made during the next few centuries.
Forecasting the capabilities of future technologies is therefore an integral component of determining the feasibility of cryonics. Such a forecast should, in principle, be feasible. The laws of physics and chemistry as they apply to biological structures are well understood and well defined.
Whether the repair of frozen tissue will or will not eventually prove feasible within the framework defined by those laws is a question which we should be able to answer based on what is known today.
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Current research outlined below supports the idea that we will eventually be able to examine and manipulate structures molecule by molecule and even atom by atom. Such a technical capability has very clear implications for the kinds of damage that can and cannot be repaired. The most powerful repair capabilities that should eventually be possible can be defined with remarkable clarity.
The question we wish to answer is conceptually straightforward:Feasibility Study: Marketing, Technical and Management Aspect. Feasibility Study: Marketing, Technical and Management Aspect Marketing aspects of Feasibility Study Jeziel Camarillo.
Feasibility Study (Veggie Bread) Bryan Agustin Oculam. 4. . 8+ Feasibility Report Examples – PDF. How to Write a Technical Feasibility Study Report. Unlike feasibility report, a technical feasibility report only assesses the details of how your company will deliver a particular product or service.
Brun et al () evaluated the ability of WMC to detect phase III MMC and correlated it with the simultaneous measurements by ADM. A total of 18 patients underwent simultaneous ADM and WMC.
Feasibility Study – Why needed before programming. In this tutorial you will learn about Feasibility Study – Why needed before programming, analysis made in feasibility study and advantages of making Feasibility study. A technical study of feasibility is an assessment of the logistical aspects of a business operation.
It includes segments on necessary materials, labor and technology, and the means of shipping or transporting goods, according to srmvision.com Although not part of the technical portion of the study, a. The Standards. Published in Science in (), the Transparency and Openness Promotion guidelines include eight modular standards, each with three levels of increasing srmvision.comls select which of the eight transparency standards they wish to implement and select a level of implementation for each.