Vintage Military Photo Diver Underwater Hazard Study With Human Subjects 10×13. Vintage Diver Underwater Hazard Study Using Human Subjects. This study focused on A 14-day, continuous dry-chamber exposure to normoxic N2 at 100 FSW (4 ATA). Penn, NASA, Navy BUMED, ONR, NIH, Baylor U. The purpose of the Predictive Studies Series was to correlate physiologic responses to extreme environmental stresses. Some information on this study: Predictive Studies II, a 14-day, dry-chamber, continuous exposure to normoxic nitrogen at 100 fsw, or 4 ATA (18-25), was the first study to be done in a new environmental chamber system of the present Institute for Environmental Medicine at the University of Pennsylvania (18). The study was stimulated by the recognition that the potential benefits of manned undersea activity would be greatly enhanced by an ability to remain for extended periods at shallow and moderate depths, where much of the useful undersea work is performed. Effects of acute and sustained exposure to increased breathing resistance on pulmonary mechanical and other functions. Rates of adaptation to stresses imposed on pulmonary function and respiratory control, as well as rates of deterioration at rest and during exercise in the event that adaptations fail. Quantitative decrements, adaptations, and deteriorations in specific aspects of mental performance during acute and chronic exposure to nitrogen narcosis. Nitrogen influences on formation and destruction of blood cellular constituents. Patterns of chemical, endocrine, and metabolic adaptations during prolonged exposures to increased nitrogen pressure. No serious, acute or chronic, toxic or nitrogen narcotic limiting effects developed during the 14-day exposure. Cognitive function and technical competence remained more than adequate for the detailed experimental procedures carried out by and with the subjects. Quantitative measurements of mental function did not detect progressive deteriorations or adaptations to nitrogen narcosis (25). There were no alterations in blood cell formation or aging (22), or any limiting chemical, metabolic, or endocrine dysfunction (23). A 14-day, continuous dry-chamber exposure to normoxic N2 at 100 FSW (4 ATA). Photograph Size: 10″ X 13″ Frame Size: 14 11/16″ x 17 3/4″ Condition ———— Excellent condition. Frame has few dings and wear marks on it. Photo is in great condition with minimal fading. See photos and the Item Description above. You choose that option. We are happy to accommodate local pickups in most cases where an item is heavy or bulky. We will simply ask you to sign an invoice indicating that you have received your item and to present photo id. This is for your protection and to ensure that only. Can receive your item. We can usually resolve any issues quickly. We are committed your happiness! Once a case opened, our flexibility to help you is more limited. Any product you return must be in the same condition in which you received it and in the original packaging. Please keep the receipt. You may not, without our written authorization, disassemble or remove a cover fastened by screws or rivets. You may not, without our written authorization, have an item serviced or cleaned. Or do these things yourself. We take pride in serving customers worldwide and have customers in over 50 countries. If this happens, let us know and we will give you a more precise quote. We understand if the duty imposed by your country makes certain items unaffordable. Unfortunately, we have no control over this. We are buyers of camera and movie equipment, fine mechanical and electronic watches and much more! This item is in the category “Collectibles\Photographic Images\Photographs”. The seller is “vssoutlet” and is located in this country: US. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech Republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Indonesia, Taiwan, South Africa, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Israel, Mexico, New Zealand, Philippines, Singapore, Switzerland, Norway, Saudi Arabia, United Arab Emirates, Qatar, Kuwait, Bahrain, Republic of Croatia, Malaysia, Chile, Colombia, Costa Rica, Dominican Republic, Panama, Trinidad and Tobago, Guatemala, El Salvador, Honduras, Jamaica, Antigua and Barbuda, Aruba, Belize, Dominica, Grenada, Saint Kitts-Nevis, Saint Lucia, Montserrat, Turks and Caicos Islands, Barbados, Bangladesh, Bermuda, Brunei Darussalam, Bolivia, Egypt, French Guiana, Guernsey, Gibraltar, Guadeloupe, Iceland, Jersey, Jordan, Cambodia, Cayman Islands, Liechtenstein, Sri Lanka, Luxembourg, Monaco, Macau, Martinique, Maldives, Nicaragua, Oman, Pakistan, Paraguay, Reunion.

• Format: Photograph
• Image Color: Black & White
• Material: Paper
• Number of Photographs: 1
• Original/Licensed Reprint: Original
• Size: 10 x 13 in
• Style: Documentary
• Subject: Outer Space, Military
• Theme: Militaria, Sports
• Time Period Manufactured: 1960-1969
• Type: Photograph
• Antique: No
• Country/Region of Manufacture: United States
• Finish: Glossy
• Framing: Matted & Framed
• Image Orientation: Landscape
• Signed: No
• Unit of Sale: Single Piece
• Vintage: Yes