Acclimatization: Adaptation to a new environment or to a change in the old.Encyclopedias as Topic: Works containing information articles on subjects in every field of knowledge, usually arranged in alphabetical order, or a similar work limited to a special field or subject. (From The ALA Glossary of Library and Information Science, 1983)Mountaineering: A sport involving mountain climbing techniques.Altitude: A vertical distance measured from a known level on the surface of a planet or other celestial body.Altitude Sickness: Multiple symptoms associated with reduced oxygen at high ALTITUDE.Photoperiod: The time period of daily exposure that an organism receives from daylight or artificial light. It is believed that photoperiodic responses may affect the control of energy balance and thermoregulation.MedlinePlus: NATIONAL LIBRARY OF MEDICINE service for health professionals and consumers. It links extensive information from the National Institutes of Health and other reviewed sources of information on specific diseases and conditions.Anoxia: Relatively complete absence of oxygen in one or more tissues.Adaptation, Physiological: The non-genetic biological changes of an organism in response to challenges in its ENVIRONMENT.Biological Evolution: The process of cumulative change over successive generations through which organisms acquire their distinguishing morphological and physiological characteristics.Electronic Mail: Messages between computer users via COMPUTER COMMUNICATION NETWORKS. This feature duplicates most of the features of paper mail, such as forwarding, multiple copies, and attachments of images and other file types, but with a speed advantage. The term also refers to an individual message sent in this way.Food Dispensers, Automatic: Mechanical food dispensing machines.Editorial Policies: The guidelines and policy statements set forth by the editor(s) or editorial board of a publication.Authorship: The profession of writing. Also the identity of the writer as the creator of a literary production.Periodicals as Topic: A publication issued at stated, more or less regular, intervals.Postal Service: The functions and activities carried out by the U.S. Postal Service, foreign postal services, and private postal services such as Federal Express.Internet: A loose confederation of computer communication networks around the world. The networks that make up the Internet are connected through several backbone networks. The Internet grew out of the US Government ARPAnet project and was designed to facilitate information exchange.Legislation, Food: Laws and regulations concerned with industrial processing and marketing of foods.Publishing: "The business or profession of the commercial production and issuance of literature" (Webster's 3d). It includes the publisher, publication processes, editing and editors. Production may be by conventional printing methods or by electronic publishing.Job Application: Process of applying for employment. It includes written application for employment or personal appearance.Sports Medicine: The field of medicine concerned with physical fitness and the diagnosis and treatment of injuries sustained in exercise and sports activities.Athletes: Individuals who have developed skills, physical stamina and strength or participants in SPORTS or other physical activities.Sports: Activities or games, usually involving physical effort or skill. Reasons for engagement in sports include pleasure, competition, and/or financial reward.Athletic Injuries: Injuries incurred during participation in competitive or non-competitive sports.Physical Education and Training: Instructional programs in the care and development of the body, often in schools. The concept does not include prescribed exercises, which is EXERCISE THERAPY.Football: A competitive team sport played on a rectangular field. This is the American or Canadian version of the game and also includes the form known as rugby. It does not include non-North American football (= SOCCER).Holidays: Days commemorating events. Holidays also include vacation periods.Leg Injuries: General or unspecified injuries involving the leg.Brain Concussion: A nonspecific term used to describe transient alterations or loss of consciousness following closed head injuries. The duration of UNCONSCIOUSNESS generally lasts a few seconds, but may persist for several hours. Concussions may be classified as mild, intermediate, and severe. Prolonged periods of unconsciousness (often defined as greater than 6 hours in duration) may be referred to as post-traumatic coma (COMA, POST-HEAD INJURY). (From Rowland, Merritt's Textbook of Neurology, 9th ed, p418)GuidebooksBooks, Illustrated: Books containing photographs, prints, drawings, portraits, plates, diagrams, facsimiles, maps, tables, or other representations or systematic arrangement of data designed to elucidate or decorate its contents. (From The ALA Glossary of Library and Information Science, 1983, p114)Histiocytic Sarcoma: Malignant neoplasms composed of MACROPHAGES or DENDRITIC CELLS. Most histiocytic sarcomas present as localized tumor masses without a leukemic phase. Though the biological behavior of these neoplasms resemble lymphomas, their cell lineage is histiocytic not lymphoid.Osteotomy: The surgical cutting of a bone. (Dorland, 28th ed)Hip Dislocation, Congenital: Congenital dislocation of the hip generally includes subluxation of the femoral head, acetabular dysplasia, and complete dislocation of the femoral head from the true acetabulum. This condition occurs in approximately 1 in 1000 live births and is more common in females than in males.Dog Diseases: Diseases of the domestic dog (Canis familiaris). This term does not include diseases of wild dogs, WOLVES; FOXES; and other Canidae for which the heading CARNIVORA is used.Acetabulum: The part of the pelvis that comprises the pelvic socket where the head of FEMUR joins to form HIP JOINT (acetabulofemoral joint).Flight, Animal: The use of wings or wing-like appendages to remain aloft and move through the air.Cold Temperature: An absence of warmth or heat or a temperature notably below an accustomed norm.Tropical Medicine: The branch of medicine concerned with diseases, mainly of parasitic origin, common in tropical and subtropical regions.Biology: One of the BIOLOGICAL SCIENCE DISCIPLINES concerned with the origin, structure, development, growth, function, genetics, and reproduction of animals, plants, and microorganisms.BrazilBibliometrics: The use of statistical methods in the analysis of a body of literature to reveal the historical development of subject fields and patterns of authorship, publication, and use. Formerly called statistical bibliography. (from The ALA Glossary of Library and Information Science, 1983)Oxygen: An element with atomic symbol O, atomic number 8, and atomic weight [15.99903; 15.99977]. It is the most abundant element on earth and essential for respiration.Legal Guardians: A legal concept for individuals who are designated to act on behalf of persons who are considered incapable of acting in their own behalf, e.g., minors and persons found to be not mentally competent.Societies, Medical: Societies whose membership is limited to physicians.Congresses as Topic: Conferences, conventions or formal meetings usually attended by delegates representing a special field of interest.Societies, Scientific: Societies whose membership is limited to scientists.Gills: Paired respiratory organs of fishes and some amphibians that are analogous to lungs. They are richly supplied with blood vessels by which oxygen and carbon dioxide are exchanged directly with the environment.Photosynthesis: The synthesis by organisms of organic chemical compounds, especially carbohydrates, from carbon dioxide using energy obtained from light rather than from the oxidation of chemical compounds. Photosynthesis comprises two separate processes: the light reactions and the dark reactions. In higher plants; GREEN ALGAE; and CYANOBACTERIA; NADPH and ATP formed by the light reactions drive the dark reactions which result in the fixation of carbon dioxide. (from Oxford Dictionary of Biochemistry and Molecular Biology, 2001)Awards and PrizesFreezing: Liquids transforming into solids by the removal of heat.Air Conditioning: The maintenance of certain aspects of the environment within a defined space to facilitate the function of that space; aspects controlled include air temperature and motion, radiant heat level, moisture, and concentration of pollutants such as dust, microorganisms, and gases. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)Electronics: The study, control, and application of the conduction of ELECTRICITY through gases or vacuum, or through semiconducting or conducting materials. (McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)Search Engine: Software used to locate data or information stored in machine-readable form locally or at a distance such as an INTERNET site.Tissue Conditioning (Dental): The use of a treatment material (tissue conditioner) to re-establish tone and health to irritated oral soft tissue, usually applied to the edentulous alveolar ridge.Electronics, Medical: The research and development of ELECTRICAL EQUIPMENT AND SUPPLIES for such medical applications as diagnosis, therapy, research, anesthesia control, cardiac control, and surgery. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)Methylmethacrylates: The methyl esters of methacrylic acid that polymerize easily and are used as tissue cements, dental materials, and absorbent for biological substances.InkSemiconductors: Materials that have a limited and usually variable electrical conductivity. They are particularly useful for the production of solid-state electronic devices.Birds: Warm-blooded VERTEBRATES possessing FEATHERS and belonging to the class Aves.Science: The study of natural phenomena by observation, measurement, and experimentation.Mammals: Warm-blooded vertebrate animals belonging to the class Mammalia, including all that possess hair and suckle their young.Cold Climate: A climate characterized by COLD TEMPERATURE for a majority of the time during the year.

The physiological strain index applied to heat-stressed rats. (1/1981)

A physiological strain index (PSI) based on heart rate (HR) and rectal temperature (Tre) was recently suggested to evaluate exercise-heat stress in humans. The purpose of this study was to adjust PSI for rats and to evaluate this index at different levels of heat acclimation and training. The corrections of HR and Tre to modify the index for rats are as follows: PSI = 5 (Tre t - Tre 0). (41.5 - Tre 0)-1 + 5 (HRt - HR0). (550 - HR0)-1, where HRt and Tre t are simultaneous measurements taken at any time during the exposure and HR0 and Tre 0 are the initial measurements. The adjusted PSI was applied to five groups (n = 11-14 per group) of acclimated rats (control and 2, 5, 10, and 30 days) exposed for 70 min to a hot climate [40 degrees C, 20% relative humidity (RH)]. A separate database representing two groups of acclimated or trained rats was also used and involved 20 min of low-intensity exercise (O2 consumption approximately 50 ml. min-1. kg-1) at three different climates: normothermic (24 degrees C, 40% RH), hot-wet (35 degrees C, 70% RH), and hot-dry (40 degrees C, 20% RH). In normothermia, rats also performed moderate exercise (O2 consumption approximately 60 ml. min-1. kg-1). The adjusted PSI differentiated among acclimation levels and significantly discriminated among all exposures during low-intensity exercise (P < 0.05). Furthermore, this index was able to assess the individual roles played by heat acclimation and exercise training.  (+info)

Thermal adaptation analyzed by comparison of protein sequences from mesophilic and extremely thermophilic Methanococcus species. (2/1981)

The genome sequence of the extremely thermophilic archaeon Methanococcus jannaschii provides a wealth of data on proteins from a thermophile. In this paper, sequences of 115 proteins from M. jannaschii are compared with their homologs from mesophilic Methanococcus species. Although the growth temperatures of the mesophiles are about 50 degrees C below that of M. jannaschii, their genomic G+C contents are nearly identical. The properties most correlated with the proteins of the thermophile include higher residue volume, higher residue hydrophobicity, more charged amino acids (especially Glu, Arg, and Lys), and fewer uncharged polar residues (Ser, Thr, Asn, and Gln). These are recurring themes, with all trends applying to 83-92% of the proteins for which complete sequences were available. Nearly all of the amino acid replacements most significantly correlated with the temperature change are the same relatively conservative changes observed in all proteins, but in the case of the mesophile/thermophile comparison there is a directional bias. We identify 26 specific pairs of amino acids with a statistically significant (P < 0.01) preferred direction of replacement.  (+info)

Desiccation resistance in interspecific Drosophila crosses. Genetic interactions and trait correlations. (3/1981)

We used crosses between two closely related Drosophila species, Drosophila serrata and D. birchii, to examine the genetic basis of desiccation resistance and correlations between resistance, physiological traits, and life-history traits. D. serrata is more resistant to desiccation than D. birchii, and this may help to explain the broader geographical range of the former species. A comparison of F2's from reciprocal crosses indicated higher resistance levels when F2's originated from D. birchii mothers compared to D. serrata mothers. However, backcrosses had a resistance level similar to that of the parental species, suggesting an interaction between X-linked effects in D. serrata that reduce resistance and autosomal effects that increase resistance. Reciprocal differences persisted in hybrid lines set up from the different reciprocal crosses and tested at later generations. Increased desiccation resistance was associated with an increased body size in two sets of hybrid lines and in half-sib groups set up from the F4's after crossing the two species, but size associations were inconsistent in the F2's. None of the crosses provided evidence for a positive association between desiccation resistance and glycogen levels, or evidence for a tradeoff between desiccation resistance and early fecundity. However, fecundity was positively correlated with body size at both the genetic and phenotypic levels. This study illustrates how interspecific crosses may provide information on genetic interactions between traits following adaptive divergence, as well as on the genetic basis of the traits.  (+info)

Thermal compensation in protein and RNA synthesis during the intermolt cycle of the American lobster, Homarus americanus. (4/1981)

1. The in vitro rates of incorporation of precursors into protein and RNA and the concentration of RNA were measured in tissues of intermolt and premolt lobsters acclimated to 5 degrees C and 20 degrees C. Midgut gland, abdominal muscle and gill of intermolt lobsters respond to temperature acclimation by a compensatory translation of the rate-temperature (R-T) curves with respect to the rates of incorporation of 3H-leucine and 3H-uridine into the acid-insoluble fraction. Midgut gland and muscle of premolt animals exhibit either no compensation or inverse compensation; gill tissue exhibits a rotation of the R-T curve. 2. The existence of the complete de novo pathway of pyrimidine biosynthesis is demonstrated in the class Crustacea. NaH14 CO2 is incorporated into orotic acid and orotic-14 C-acid is incorporated into the acid-insoluble fraction. 3. Both the concentration of RNA and the rates of incorporation of precursors of both the salvage and de novo pyrimidine pathways are enhanced in the midgut gland of premolt lobsters, relative to intermolt tissue, under conditions of warm-acclimation.  (+info)

Acclimation of Arabidopsis leaves developing at low temperatures. Increasing cytoplasmic volume accompanies increased activities of enzymes in the Calvin cycle and in the sucrose-biosynthesis pathway. (5/1981)

Photosynthetic and metabolic acclimation to low growth temperatures were studied in Arabidopsis (Heynh.). Plants were grown at 23 degrees C and then shifted to 5 degrees C. We compared the leaves shifted to 5 degrees C for 10 d and the new leaves developed at 5 degrees C with the control leaves on plants that had been left at 23 degrees C. Leaf development at 5 degrees C resulted in the recovery of photosynthesis to rates comparable with those achieved by control leaves at 23 degrees C. There was a shift in the partitioning of carbon from starch and toward sucrose (Suc) in leaves that developed at 5 degrees C. The recovery of photosynthetic capacity and the redirection of carbon to Suc in these leaves were associated with coordinated increases in the activity of several Calvin-cycle enzymes, even larger increases in the activity of key enzymes for Suc biosynthesis, and an increase in the phosphate available for metabolism. Development of leaves at 5 degrees C also led to an increase in cytoplasmic volume and a decrease in vacuolar volume, which may provide an important mechanism for increasing the enzymes and metabolites in cold-acclimated leaves. Understanding the mechanisms underlying such structural changes during leaf development in the cold could result in novel approaches to increasing plant yield.  (+info)

Cold acclimation of guinea pig depressed contraction of cardiac papillary muscle. (6/1981)

Guinea pigs were exposed to 5 degrees C for 3 wk, and the contractions of myocardial papillary muscle were compared with preparations dissected from control animals kept at approximately 25 degrees C. Developed tension of the papillary muscle per cross-sectional area was significantly (t-test, P < 0.05) decreased after cold exposure (19,200 +/- 8,160 vs. 3,020 +/- 2,890 dyne/cm2; 1 Hz). Time to peak tension was significantly faster in cold-exposed guinea pigs (126.4 +/- 11.1 ms; 1 Hz) than in controls (162.7 +/- 8. 7 ms). The magnitude of the developed tension after application of ryanodine (2 mM) to muscles from cold-exposed animals was decreased to 37.5 +/- 8.3% of control at 1 Hz, whereas in muscles from control animals, tension was decreased to 82.4 +/- 7.7%. The ryanodine-sensitive component of contraction was not significantly changed in control guinea pigs at frequencies >0.5 Hz, whereas in muscles from cold-acclimated guinea pigs, there was a "positive staircase." These results suggested that reversal of the Na+/Ca2+ exchanger is predominantly involved in the positive staircase in control guinea pigs, whereas rate-dependent increases in the Ca2+ store in the sarcoplasmic reticulum may be involved in the staircase after cold acclimation.  (+info)

Core temperature and sweating onset in humans acclimated to heat given at a fixed daily time. (7/1981)

The thermoregulatory functions of rats acclimated to heat given daily at a fixed time are altered, especially during the period in which they were previously exposed to heat. In this study, we investigated the existence of similar phenomena in humans. Volunteers were exposed to an ambient temperature (Ta) of 46 degrees C and a relative humidity of 20% for 4 h (1400-1800) for 9-10 consecutive days. In the first experiment, the rectal temperatures (Tre) of six subjects were measured over 24 h at a Ta of 27 degrees C with and without heat acclimation. Heat acclimation significantly lowered Tre only between 1400 and 1800. In the second experiment, six subjects rested in a chair at a Ta of 28 degrees C and a relative humidity of 40% with both legs immersed in warm water (42 degrees C) for 30 min. The Tre and sweating rates at the forearm and chest were measured. Measurements were made in the morning (0900-1100) and afternoon (1500-1700) on the same day before and after heat acclimation. Heat acclimation shortened the sweating latency and decreased the threshold Tre for sweating. However, these changes were significant only in the afternoon. The results suggest that repeated heat exposure in humans, limited to a fixed time daily, alters the core temperature level and thermoregulatory function, especially during the period in which the subjects had previously been exposed to heat.  (+info)

Heat acclimation increases the basal HSP72 level and alters its production dynamics during heat stress. (8/1981)

It has been previously shown that heat acclimation leads to an elevated basal level of 72-kDa heat shock protein (HSP72). Augmented expression of HSP72 is considered as a cytoprotective response. This led us to hypothesize that alterations in the heat shock protein (HSP) defense pathway are an integral part of the heat acclimation repertoire. To investigate this, we studied the temporal profile of basal HSP expression upon acclimation and the dynamics of their accumulation subsequent to acute heat stress (HS). In parallel, HSP72 mRNA level before and after HS was measured. For comparison, HSC mRNA [the constitutive member of 70-kDa HSP (HSP70) family] was measured in similar conditions. Heat acclimation was attained by continuous exposure of rats to 34 degrees C for 0, 1, 2, and 30 days. HS was attained by exposure to 41 or 43 degrees C for 2 h. Thermoregulatory capacity of the rats was defined by rectal temperature, heating rate, and the cumulative heat strain invoked during HS. HSP72 and HSP70 gene transcripts were measured in the left ventricle of the heart by means of Western immunoblotting and semiquantitative RT-PCR, respectively. The resultant acclimatory change comprised a higher resting level of the encoded 72-kDa protein (Delta175%, P < 0.0001). After HS, peak HSP72 mRNA level was attained, 40 and 20 min post-HS at 41 and 43 degrees C, respectively, vs. 60 and 40 min in the nonacclimated group. The subsequent HSP synthesis, however, was dependent on the severity of the cumulative heat strain. At the initial phase of heat acclimation, augmented HSP72 transcription unaccompanied by HSP synthesis was observed. It is concluded that upon heat acclimation, the HSP defense pathway is predisposed to a faster response. At the initial phases of heat acclimation, inability to elevate the HSP cytosolic level rules out their direct cytoprotective role.  (+info)

*Acclimatization

... occurs in a short period of time (hours to weeks), and within the organism's lifetime (compared to adaptation, ... Acclimatisation (also called acclimation or acclimatation) is the process in which an individual organism adjusts to a change ... Acclimatization to high altitude continues for months or even years after initial ascent, and ultimately enables humans to ... Note: acclimation and acclimatization are two very different terms that are not interchangeable. Acclimation is used under ...

*American Acclimatization Society

The American Acclimatization Society was a group founded in New York City in 1871 dedicated to introducing European flora and ... "Acclimatization and Domestication of Useful Animals") had urged the French government to introduce, and when necessary ... January 2001 The History of Soy Pioneers Around the World American Acclimatization Society, New York Times, November 15, 1877 ... Marzluff writes that the motives of the 19th century acclimatization enthusiasts were largely cultural: "Western European ...

*Acclimatisation society

At the time of acclimatisation societies, however, this was insufficiently understood. A definition of acclimatisation was ... Introduced species Invasive species Assisted migration Acclimatisation societies in New Zealand American Acclimatization ... The British acclimatisation society originated from an idea proposed by the management of The Field journal. A meeting was held ... The Acclimatisation Society of Victoria was established in 1861. Speaking at the Society, George Bennett pointed out how it was ...

*Acclimatisation (neurones)

A synapse that has undergone acclimatisation is said to be fatigued. Acclimatisation is said to be responsible for 'getting ... Acclimatisation is the process by which the nervous system fails to respond to a stimulus, as a result of the repeated ... Acclimatisation is believed to occur when the synaptic knob of the presynaptic neurone runs out of vesicles containing ...

*Queensland Acclimatisation Society

The Queensland Acclimatisation Society (QAS) was an acclimatisation society based in Brisbane, Queensland, Australia which ... However, the pecan nut trees at Lawnton are the only pre-World War II Acclimatisation Society plantings, known to be extant, ... It is difficult to establish a direct link between the Acclimatisation society's work on pecan nuts and the present commercial ... From its inception in 1862 at the instigation of the Governor of Queensland, Sir George Bowen, the Queensland Acclimatisation ...

*Acclimatisation Society gardens, Lawnton

Acclimatisation societies were established in all of the Australian colonies in the mid to late 19th century. These societies ... Remnants of former acclimatisation society gardens at Lawnton were listed on the Queensland Heritage Register on 8 May 2009 ... Acclimatisation Society gardens is a heritage-listed botanic garden at Bray Road, Lawnton, Moreton Bay Region, Queensland, ... Acclimatisation in the nineteenth century was scientifically understood to mean the process by which animals and plants ...

*Acclimatisation societies in New Zealand

Conservation in New Zealand Hunting in New Zealand History of New Zealand Acclimatisation society "Early acclimatisation ... Te Ara - the Encyclopedia of New Zealand - Acclimatisation of Animals Te Ara - Early acclimatisation societies. ... Acclimatisation societies were established in New Zealand by European colonists from the 1860s, with the first likely having ... The Canterbury acclimatisation society was known for some more unusual introductions including the African Lion. Not only did ...

*Altitude

Muza, SR; Fulco, CS; Cymerman, A (2004). "Altitude Acclimatization Guide". U.S. Army Research Inst. of Environmental Medicine ... However, above 8,000 metres (26,000 ft), (in the "death zone"), altitude acclimatization becomes impossible. There is a ... Athletes also can take advantage of altitude acclimatization to increase their performance. The same changes that help the body ...

*Gorakshep

... acclimatization and physical conditioning of each individual. At this altitude, few people feel comfortable and many start to ... "Altitude Acclimatization Guide.". US Army Research Inst. of Environmental Medicine Thermal and Mountain Medicine Division ...

*Effects of high altitude on humans

Any positive acclimatization effects may be negated by a de-training effect as the athletes are usually not able to exercise ... The human body can adapt to high altitude through both immediate and long-term acclimatization. At high altitude, in the short ... Athletes can also take advantage of altitude acclimatization to increase their performance. The same changes that help the body ... Levine, BD; Stray-Gundersen, J (July 1997). ""Living high-training low": effect of moderate-altitude acclimatization with low- ...

*Acetazolamide

... is not an immediate cure for acute mountain sickness; rather, it speeds up part of the acclimatization process ... Muza, SR; Fulco, CS; Cymerman, A (2004). "Altitude Acclimatization Guide". US Army Research Inst. of Environmental Medicine ...

*Wilderness medical emergency

Muza, SR; Fulco, CS; Cymerman, A (2004). "Altitude Acclimatization Guide.". US Army Research Inst. of Environmental Medicine ...

*Altitude training

Levine, BD; Stray-Gunderson, J (2001). "The effects of altitude training are mediated primarily by acclimatization rather than ... Muza, SR; Fulco, CS; Cymerman, A (2004). "Altitude Acclimatization Guide". US Army Research Inst. of Environmental Medicine ...

*Dingboche

Parties will typically spend two nights in Dingboche for acclimatization purposes. The village relies heavily on tourists with ... Muza, SR; Fulco, CS; Cymerman, A (2004). "Altitude Acclimatization Guide.". US Army Research Inst. of Environmental Medicine ...

*Altitude sickness

For high-altitude climbers, a typical acclimatization regimen might be to stay a few days at a base camp, climb up to a higher ... Altitude acclimatization is necessary for some people who move rapidly from lower altitudes to intermediate altitudes (e.g., by ... Pre-acclimatization is when the body develops tolerance to low oxygen concentrations before ascending to an altitude. It ... Altitude acclimatization is the process of adjusting to decreasing oxygen levels at higher elevations, in order to avoid ...

*Lukla

From Lukla, travellers will take two days to reach the village Namche Bazaar, an altitude acclimatization stop for those ... Muza, SR; Fulco, CS; Cymerman, A (2004). "Altitude Acclimatization Guide". US Army Research Inst. of Environmental Medicine ...

*Institutes of Agriculture of Bydgoszcz

Plant Breeding and Acclimatization; Zootechnics; Land development; Animal physiology and Nutrition Sciences; Potato research; ... Seat of the Institute of Plant Breeding and Acclimatization, (Polish: Instytut Hodowli i Aklimatyzacji Roślin, IHAR), at ... Bydgoszcz branch of the Institute of Plant Breeding and Acclimatization (Polish: Instytut Hodowli i Aklimatyzacji Roślin (IHAR ...

*Ladakh Marathon

Acclimatization is the foremost issue at this height. Altitude sickness can occur at this height due to lack of oxygen. The ... "Ladakh Marathon - Acclimatization Issues". Ladakh Marathon. Retrieved 22 September 2015. "Ladakh Marathon - Results 2012". ...

*Indian Army Everest Expedition 2007

Week-long acclimatization starts. 17 April 2007. The advanced base camp( ABC) at 21,000 feet, established. Next stage of ... acclimatization starts . Preparation start for setting up camp 1. 21-28 April 2007. Establish Camp 1, 23,000 feet. 28 April ...

*Lake Whangape

"Acclimatisation Society". New Zealand Herald. 1878-11-05. p. 3. Retrieved 2017-10-22. "Acclimatisation Society". Auckland Star ... "Acclimatisation Society. Annual Meeting". Daily Southern Cross. 1870-03-10. p. 4. Retrieved 2017-10-22. "Acclimatisation ... "Acclimatisation Society". New Zealand Herald. 1872. p. 3. Retrieved 2017-10-22. Tony M. Dugdale, Paul D. Champion, Sarah M. ... "ACCLIMATISATION. (New Zealand Herald, 1889-04-25)". paperspast.natlib.govt.nz National Library of New Zealand. Retrieved 2017- ...

*Larry F. Grand

Effects on acclimatization and growth. HortScience. 36(2):357-359. Starrett, M.C., F.A. Blazick, S.R. Shafer and L.F. Grand. ...

*Cold and heat adaptations in humans

There has been a great deal of research done on developmental adjustment, acclimatization, and cultural practices, but less ... Kaciuba-Uscilko, Hannah; Greenleaf, John (April 1, 1989). "Acclimatization to cold in humans" (PDF). https://ntrs.nasa.gov/. ...

*National Centre for Plant Genetic Resources: Polish Genebank

Plant Breeding and Acclimatization Institute - Directory. 2007. Arseniuk, Edward (2001). Monigrafie i rozprawy naukowe IHAR. " ... is a research unit in the Plant Breeding and Acclimatization Institute - National Research Institute. NCPGR is the coordinator ... Biodiversity Conservation genetics Neglected and underutilized crop SAVE Foundation Plant Breeding and Acclimatization ...

*Louis Westenra Sambon

Sambon, L.S. (1898). "Acclimatization of Europeans in tropical lands". The Geographical Journal. 12 (6): 589-599. Livingstone, ... regarding acclimatisation of Europeans in tropical regions, he theorised that it was parasite not the heat that killed ...

*High-altitude adaptation in humans

This shows only temporary and reversible acclimatisation. However, in contrast to lowland people, they do have increased oxygen ... Altitude Effects of high altitude on humans (including acclimatisation) High-altitude adaptation High-altitude football ... Muza SR, Beidleman BA, Fulco CS; Beidleman; Fulco (2010). "Altitude preexposure recommendations for inducing acclimatization". ...
Definition of acclimatization in the Legal Dictionary - by Free online English dictionary and encyclopedia. What is acclimatization? Meaning of acclimatization as a legal term. What does acclimatization mean in law?
Photosynthetic organisms are able to sense energy imbalances brought about by the overexcitation of photosystem II (PSII) through the redox state of the photosynthetic electron transport chain, estimated as the chlorophyll fluorescence parameter 1-qL, also known as PSII excitation pressure. Plants employ a wide array of photoprotective processes that modulate photosynthesis to correct these energy imbalances. Low temperature and light are well established in their ability to modulate PSII excitation pressure. The acquisition of freezing tolerance requires growth and development a low temperature (cold acclimation) which predisposes the plant to photoinhibition. Thus, photosynthetic acclimation is essential for proper energy balancing during the cold acclimation process. Eutrema salsugineum (Thellungiella salsuginea) is an extremophile, a close relative of Arabidopsis thaliana, but possessing much higher constitutive levels of tolerance to abiotic stress. This comparative study aimed to characterize the
This study tested the effects of acclimatization on the response of corals to elevated temperature, using juvenile massive Porites spp. and branching P. irregularis from Moorea (W149A degrees 50, S17A degrees 30). During April and May 2006, corals were acclimatized for 15 days to cool (25.7A degrees C) or ambient (27.7A degrees C) temperature, under shaded (352 mu mol photons m(-2) s(-1)) or ambient (554 mu mol photons m(-2) s(-1)) natural light, and then incubated for 7 days at ambient or high temperature (31.1A degrees C), under ambient light (659 mu mol photons m(-2) s(-1)). The response to acclimatization was assessed as biomass, maximum dark-adapted quantum yield of PSII (F (v)/F (m)), and growth, and the effect of the subsequent treatment was assessed as F (v)/F (m) and growth. Relative to the controls (i.e., ambient temperature/ambient light), massive Porites spp. responded to acclimatization through increases in biomass under ambient temperature/shade, and low temperature/ambient ...
Cold-acclimation of rats (3 weeks, 4 degrees C) had no effect on basal rates of glucose production or utilization. Under euglycaemic-clamp conditions, in which the circulating insulin concentration was increased by approx. 50 microunits/ml, cold-acclimated rats showed a greater increase in glucose utilization and a greater suppression of endogenous glucose production. Tissue sites of glucose utilization were investigated by using a tracer dose of 2-deoxy-D-[14C]glucose and a glucose metabolic index determined for each tissue. In 5 h-starved warm-acclimated rats, heart had the highest glucose metabolic index. This was increased further by both cold-acclimation and insulin treatment. The glucose metabolic index of skeletal muscle was 3.5-14-fold lower than that of heart, but, as a result of the large muscle mass, skeletal muscle made the largest contribution to whole-body glucose utilization. White and brown adipose tissue had low glucose metabolic indices in warm-acclimated rats under basal ...
There were three to four times more features upregulated only in cold-acclimated crabs. These were clustered by strong expression differences (average fourfold difference) between warm- and cold-acclimated crabs (N=404; Fig 2E, Table 1) or weak expression differences (average twofold difference) across acclimation temperature groups (N=1927; Fig. 2F, Table 1).. Cold-acclimated crabs had elevated expression of genes encoding proteins involved in the net production of glucose. Of a total of 36 uniquely annotated features for glucose production or transport genes, 26 (72%) were observed in the clusters that were upregulated by cold acclimation (Fig. 2E,F, Table 1), and 15 of those were strongly induced (10- to 12-fold induction; Table 1, Fig. 2E). Cold acclimation strongly induced glucose production and transport genes including glycogen phosphorylase, phosphoenolpyruvate carboxykinase, glucose-6-phosphatase, glucose transporter, glucose repression mediator and sugar transporters such as osmotin ...
線上聽英語 語言學習網補習的英文 學英文 卡通 學英語網站網上英文 人際關係心得臺中英文進修 ??英文家教1111 美語 英文學習1對1英文 網上英語課程旅遊英文書 臺中英文家教費用免費學英文下載 日常生活英語會話 立即了解學習英文 立即了解學習英文acclimatization to anoxia中文意思是什麼acclimatization to anoxia解釋 缺氧適應 acclimatization: n. 服水土,適應氣候。to: adv 到某種狀態;〈特指〉到停止狀態;關閉。 @ @ tdr997xn95
Cardiac function is thought to play a central role in determining thermal optima and tolerance limits in teleost fishes. Investigating proteomic responses to temperature in cardiac tissues may provide insights into mechanisms supporting the thermal plasticity of cardiac function. Here, we utilized a global proteomic analysis to investigate changes in cardiac protein abundance in response to temperature acclimation (transfer from 13°C to 9, 19 and 26°C) in a eurythermal goby, Gillichthys mirabilis. Proteomic data revealed 122 differentially expressed proteins across acclimation groups, 37 of which were identified using tandem mass-spectrometry. These 37 proteins are involved in energy metabolism, mitochondrial regulation, iron homeostasis, cytoprotection against hypoxia, and cytoskeletal organization. Compared with the 9 and 26°C groups, proteins involved in energy metabolism increased in 19°C-acclimated fish, indicating an overall increase in the capacity for ATP production. Creatine kinase
Sex-specific acclimation of ATP-producing pathways in tissues that are linked directly to reproductive success indicates that thermal acclimation is a response selected for the fitness benefits it confers on individuals. In external oblique (calling) muscle, females show no acclimation of metabolic enzymes, but males show perfect temperature compensation in the activity of these enzymes with acclimation. The external oblique muscle is important in calling (Girgenrath and Marsh, 1997; Martin and Gans, 1972), and male anurans often have higher activities of metabolic enzymes in this muscle than females (Given and McKay, 1990; Marsh and Taigen, 1987). Additionally, citrate synthase activity is a correlate of calling ability in Pseudacris crucifer (Zimmitti, 1999). The calling muscles are highly aerobic muscles that can contract repeatedly over long periods (Marsh, 1999), so that temperature compensation in oxidative pathways ensures the supply of ATP used in muscular contraction. Upregulation of ...
NOVOA, F. Fernando; RIVERA-HUTINEL, Antonio; ROSENMANN, Mario y SABAT, Pablo. Intraspecific differences in metabolic rate of Chroeomys olivaceus (Rodentia: Muridae): the effect of thermal acclimation in arid and mesic habitats. Rev. chil. hist. nat. [online]. 2005, vol.78, n.2, pp.215-227. ISSN 0716-078X. http://dx.doi.org/10.4067/S0716-078X2005000200004.. Studies of metabolic capacities in rodents have been largely studied at an inter-specific levels, but physiological capacities of populations belonging to the same species have received lesser attention. Here we studied the maximum and basal metabolic rates of two populations of the rodent Chroeomys olivaceus dwelling in habitats with contrasting temperature and rainfall regimes, and to test if differences in metabolic capacities are due to local adaptation or acclimatization effect. After four weeks of acclimation to 25 ºC and 10 ºC, the BMR and MMR were determined in individuals from the northern population of Caleta Loa, and the southern ...
ALTITUDE TRAINING AND ITS EFFECTS ON HIGHLY-TRAINED SWIMMERS The scientific evidence associated with altitude acclimatization and performance in elite swimmers is reviewed extensively in the yet-to-be-published paper, "Altitude training and elite swimmers." The authors are: Brent S. Rushall, Michael J. Buono, and Anthony A. Sucec, Professors of Exercise and Nutritional Sciences at San Diego State University, and Alan D. Roberts, Associate-Professor of Sports Studies at the University of Canberra. The article is the most detailed and up-to-date treatment of the topic available. Initial attention is paid to the manner in which the human body acclimatizes (adapts) to passive and active stresses. Those reactions are then meshed with the published works on altitude acclimatization that are valid for swimming. With altitude training featuring as an expensive part of the annual plans of several nations, it is of value to consider the summary implications of this research article. ". . . acclimatization ...
Workers can maintain their acclimatization even if they are away from the job for a few days, such as when they go home for the weekend. However, if they are absent for a week or more then there may be a significant loss in the beneficial adaptations leading to an increased likelihood of heat-related illness and a need to gradually reacclimate to the hot environment.. Some additional information on maintaining acclimatization:. ...
Little is known about the potential for acclimatization or adaptation of corals to ocean acidification and even less about the molecular mechanisms underpinning these processes. Here we examine global gene expression patterns in corals and their intracellular algal symbionts from two replicate population pairs in Papua New Guinea that have undergone long-term acclimatization to natural…
Definition (http://en.wikipedia.org/wiki/Acclimatization). Acclimatization is the process in which an individual organism adjusts to a gradual change in its environment (such as a change in temperature, humidity, photoperiod, or pH), allowing it to maintain performance across a range of environmental conditions. (Wikipedia). Preferred Units: N/A. Scope Note: ...
Health,Harrisburgh PA (PRWEB) August 19 2013 High school football programs around the commonwealth had the option of beginning practices on August 7 2013 a full five days before the official first day of fall sports. Over the summer months the Pennsylvania Interscholastic Athletic Association (PIAA) passed a new rule for heat acclimatization. These rules allow f,Pennsylvania,Athletic,Trainers,will,Implement,New,PIAA,rules,for,Heat,Acclimatization,in,effect,for,2013,Football,Season,medicine,medical news today,latest medical news,medical newsletters,current medical news,latest medicine news
My O2 saturation level is at 96 out 100 at sea level, which is really excellent. In other words, my body feels like I was at sea level. I cant quite explain my natural ability to altitude. Nevertheless, I know that AMS (Altitude Mountain Sickness) can happen to anyone, anytime, even if you never had before. So I stay cautious, I do my trek respecting altitude acclimatization threshold. ...
Plants possess acclimation responses in which structural reconfigurations adapt the photosynthetic apparatus to fluctuating illumination. Long-term acclimation involves changes in plastid and nuclear gene expression and is controlled by redox signals from photosynthesis. The kinetics of these signals and the adjustments of energetic and metabolic demands to the changes in the photosynthetic apparatus are currently poorly understood. Using a redox signaling system that preferentially excites either photosystem I or II, we measured the time-dependent impact of redox signals on the transcriptome and metabolome of Arabidopsis thaliana. We observed rapid and dynamic changes in nuclear transcript accumulation resulting in differential and specific expression patterns for genes associated with photosynthesis and metabolism. Metabolite pools also exhibited dynamic changes and indicate readjustments between distinct metabolic states depending on the respective illumination. These states reflect ...
Acclimatisation (also called acclimation or acclimatation) is the process in which an individual organism adjusts to a change in its environment (such as a change in altitude, temperature, humidity, photoperiod, or pH), allowing it to maintain performance across a range of environmental conditions. Acclimatization occurs in a short period of time (hours to weeks), and within the organisms lifetime (compared to adaptation, which is a development that takes place over many generations). This may be a discrete occurrence (for example, when mountaineers acclimate to high altitude over hours or days) or may instead represent part of a periodic cycle, such as a mammal shedding heavy winter fur in favor of a lighter summer coat. Organisms can adjust their morphological, behavioral, physical, and/or biochemical traits in response to changes in their environment. While the capacity to acclimate to novel environments has been well documented in thousands of species, researchers still know very little ...
To maximize oxygen transport at altitude, one needs to proportionally alter all links in the delivery, extraction, and utilization phases of the aerobic mechanism that results from the acclimatization process (Sutton, 1994). The elements of major change indicated above acclimate at different times (Smith & Sharkey, 1984). One can cautiously assume that the asynchronous development of the segments of the aerobic system will not accommodate the most effective acclimatization in the early stages. If the term of altitude residence is long enough, eventually all changes will be completed and maximal acclimated aerobic function will have occurred. Despite those changes, oxygen delivery at altitude will still be less than that of sea-level if aerobic fitness was fully trained prior to going to altitude (Sutton, 1994). Maximum physiological capacities are not enhanced by altitude acclimatization. However, submaximal utilizations do change and are associated with improved altitude performance. The longer ...
This post was a companion to HABITUATION, both of which I wrote in early 2010. Since I revisited and largely rewrote that as Cold Water Habituation, my plan was to do the same in this post also. Acclimatization (acclimatisation for those of us who forego the use of the z) is a different factor to habituation. While…
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We are sure whenever you research for or plan to go to the Himalayas or any high altitude landscape you will come across these words Acclimatization or AM
Before climbing a mountain as high as Sasser Kangri II, a period of acclimatization to the altitude must occur first. In 2009 we spent time on adjacent peaks to acclimatize. But when we made our attempt on Sasser Kangri II we discovered that finding bivouac sites was our biggest problem. We felt that it would have been worthwhile to acclimate by make a reconaissance high on SKII to chop a tent platform out of the ice ahead of time. This year we decided to adopt this strategy - so on July 24th we left ABC for our first bivuoac on the wall at a good ledge not too far up that we called the Launch Pad. Little did we know that this would be the only good ledge on the entire 6,000 foot high face. Getting to the Launch Pad is about 8 rope lengths up the wall and is mostly easy lower angle ice climbing. We found and improved our belay/rappel anchors in the rock alonside the ice from 2009. We would save time reusing these on the several forays we would be making in the future ...
The Plant Breeding and Acclimatization Institute (IHAR) - National Research Institute is the largest Polish research centre in the multi-disciplinary area of crop improvement, biot
Simple Summary: This study in laboratory rodents shows a sex specific effect of breeder to research facility transfer on several physiological parameters, such as heart rate and blood pressure. We recommend at least 8 days of acclimatization time after transfer in male rats and at least two weeks in female ... read more rats, before using these animals in research. Abstract: Most laboratory animals used in research are vendor-bred and transferred to research facilities. Transfer procedures might have considerable and unintended effects on research results. In the present study we compared physiological and behavioral parameters before and after external and internal transfer, as well as between transferred and non-transferred Wistar rats. The impact of both external and internal transfer on body weight, plasma corticosterone levels, heart rate, blood pressure, and locomotor activity was studied in both male and female Wistar rats, taking into account the sex differences in stress responsivity. ...
Clarke, Andrew. 1993 Seasonal acclimatization and latitudinal compensation in metabolism: do they exist? Functional Ecology, 7 (2). 139-149. https://doi.org/10.2307/2389880 Full text not available from this repository. (Request a copy ...
We use three to four camps (depending on weather, team acclimatization and logistics) from Base Camp on up. Most companies use 2 to 3 camps maximum. We feel strongly about giving you the best possible chance to summit. By using more camps, or extra rest days, your chance to acclimatize and summit dramatically increases. It would be easier and more economical for us to use only two camps, but we do not. We want you to have the opportunity to achieve the best acclimatization possible. Sometimes our teams take rest days above Base Camp to help with acclimatization. This can vary depending on trip circumstances, acclimatization, weather, etc.. ...
With the objective of destruction of organic toxic or recalcitrant compounds by a microbial anaerobic mixed population, a new concept has been devised : the Destox concept. It has been applied here to the destruction of a toxic mixture of about 30 polychlorinated aliphatic compounds (PAC-MIX 1), including 51% of hexachloro-1,3-butadiene. The basic step for initiating the degradation is thought to be reductive dechlorination by microbial interspecies hydrogen transfer in a system using at all times a non-toxic co-substrate as major source of carbon and energy. In an upflow laboratory-scale reactor with a fixed-film stationary-bed, fed with a co-substrate, amounts of 48 mg/litre working volume per day of PAC-MIX 1 have been added during intermittent periods of time. This paper presents, over a period of 421 days, the evolution from a situation of complete inhibition of all microbial activity, from fermentative to methanogenic, into a situation of partial acclimatization, the fermentative and ...
It was cheerful. To two oclock in the morning. However, in six oclock in the morning when it was necessary to rise on an ascension, it was a little bit sad. Also it would be desirable to die in sleeping bag embraces. But the old habit of the beginning of action has helped to overcome weariness. And already in 11 oclock in the morning we admired a panorama of mountains from top of Amangeldy peak (3999 m). Acclimatization, whether know! There was a Saturday. ...
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This was my first holiday trip without topical steroids as well as moisturizers. It was my first trip that I felt confident that my skin could manage the conditions. Weather in Bangkok was hot and a little drier than Singapore. It went up to as high as 38 degC in the day. After the first day, small sections of my arms flared a little. I attribute this to the acclimatization to the hotter … [Read more...]. 1,068 views ...
Find all books from Castelnau, Francis - Proceedings of the Zoological and Acclimatization Society of Victoria V1: Contribution to the Ichthyology of Australia (1872). At find-more-books.com you can find used, antique and new books, COMPARE results and immediately PURCHASE your selection at the best price. 9781120235091
The regular meeting of the American Acclimatization Society was held last evening in the reading-room of the Aquarium, the use of which had been given for the purpose.
Citation: Dang, P.M., Chen, C., Holbrook Jr, C.C. 2012. Identification of Drought Induced Genes in Peanut. Auburn University, 01-11-2013, Auburn, AL. (Invited seminar) Interpretive Summary: none required. Technical Abstract: Plants are challenged with environmental stresses such as drought, high-salinity, and high and low temperature which can adversely affect growth and development and ultimate reduce yield and quality. In order to cope with the dynamic adverse environmental changes, plants have evolved a complex network of perception and signal transduction. ABA is an important hormone that regulates this communication and leads to an acclimation response. Transcription factors act as key regulators that activate down-stream genes in the acclimation process. The APETALA 2/ethylene-responsive element binding factor (AP2/ERF) represents a large family of plant-specific transcription factors that regulate gene expression by binding to the cis-acting dehydration-responsive element/C-repeat ...
The day started off slow with a bit of coffee and lemon tea before I went out to look around the quaint little shops scattered around Namche Bazaar
In addition to this we all had our own jobs that usually involved getting very cold at some point, in my case it was while fishing in boats or by skidoo through ice. When I first arrived on base I hated getting fish out of nets as my hands and fingers hurt with the cold, flushing hot, then cold. I never came to actually enjoy this part of the job, but after about a month was able to put up with it and just get on. The heat coming from the wrapped exhaust of our small launch was used to restore dexterity when our fingers wouldnt move on command properly, but it never hurt again as it had done the first few weeks ...
Autor: Hannah, M. A. et al.; Genre: Zeitschriftenartikel; Im Druck veröffentlicht: 2005; Open Access; Keywords: false discovery rate|br/|freezing-tolerance|br/|low-temperature|br/|transcription factors|br/|water-deficit|br/|microarray experiments|br/|signal-transduction|br/|cdna microarray|br/|expression|br/|stress; Titel: A global survey of gene regulation during cold acclimation in Arabidopsis thaliana
ALONE, Lima-Brito et al. In vitro hardening in different enviroment and acclimatization of microplants of Comanthera mucugensis Giul. subsp. mucugensis. Rev. Ciênc. Agron. [online]. 2016, vol.47, n.1, pp.152-161. ISSN 0045-6888. http://dx.doi.org/10.5935/1806-6690.20160018.. The present study evaluated the influence of photon flux density and the type of culture vessel seal on the hardening of in vitro plants and on the survival of seedlings acclimatized of C. mucugensis subsp. mucugensis, in order to increase the survival during acclimatization. Micropropagated shoots were maintained under three different levels of photosynthetically active radiation (PAR): 60; 120 and 300 µmol m-2 s-1. Forty days after inoculation, the PVC that was used to close the tubes was exchanged for three different types of seals: PVC, caps and cotton. At 60 days of cultivation the plants were analyzed as anatomy, loss of water and growth. For acclimatization, some plants were transferred to green houses and covered ...
acclimatation definition: Acclimatization.; Acclimatization.; Acclimatization: mainly found in transcription from the French: as, the Acclimatation Society of Nantes.
Mature leaves of vegetation transferred from low to high light typically increase their photosynthetic capacity. photosynthetic capacity (accession Wassilewskija\4 (Ws\4) shows a strong dynamic acclimation of buy PFK-158 photosynthetic capacity, increasing (collection is therefore a useful tool to study the dynamic acclimation response in mutant and to the related mutant, is essential for the growth and development of knockout vegetation are viable and display phenotypically normal growth under standard laboratory growth conditions. Only under variable growth conditions has a obvious growth phenotype been shown (Athanasiou can be induced under a range of treatments and at various developmental phases, as well as in a number of mutants impaired in carbon rate of metabolism or its rules. In crazy\type vegetation, expression is definitely induced in imbibed seeds (Finch\Savage vegetation, concentrating on the regulatory events occurring at an early stage in acclimation to improved light, when GPT2 ...
Hypoxic exposure lasting a few hours results in an elevation of ventilation and a lowering of end-tidal P(CO2) (P(ET(CO2))) that persists on return to breathing air. We sought to determine whether this increment in ventilation is fixed (hypothesis 1), or whether it increases in proportion to the rise in metabolic rate associated with exercise (hypothesis 2). Ten subjects were studied on two separate days. On 1 day, subjects were exposed to 8h of isocapnic hypoxia (end-tidal P(O2) 55 Torr) and on the other day to 8 h of euoxia as a control. Before and 30 min after each exposure, subjects undertook an incremental exercise test. The best fit of a model for the variation in P(ET(CO2)) with metabolic rate gave a residual squared error that was approximately 20-fold less for hypothesis 2 than for hypothesis 1 (p|0.005, F-ratio test). We conclude that the alterations in respiratory control induced during early ventilatory acclimatization to hypoxia better reflect those associated with hypothesis 2 rather than
I couldnt reconcile this with another datum about high altitude climbing, which is that it can be dangerous to go down when you are acclimatized, spend time low, then climb back up. I think I realized whats happening in this case. When you go down after altitude, your cells will compress from the added pressure. You will retain the red blood cells, perhaps even produce more, now that your body is more comfortable. When you climb back up, you will feel great, not being much restrained from the low oxygen. However, your cells will still expand, and if you dont give it the time to do so slowly and uniformly, you will get sick. Edemas occur when cells of different kinds expand at different rates in the low pressure of high altitudes ...
The human body is a wondrous, integrative, highly sophisticated apparatus that has evolved to deal impressively with a myriad of insults - infection, trauma, starvation, climate changes, etc. However, advanced age, comorbidities that would not have allowed survival in days past, and the brute force of modern medicine are alien - and often detrimental - to the bodys innate responses. This is particularly borne out in critical care where improvements in patient outcome over the last few decades have revolved around doing less to the patient, rather than through the introduction of any breakthrough technology. Where we strove to normalize deranged physiology and biochemistry, we are now much more accommodating of acceptable degrees of abnormality, analogous to altitude acclimatization. Recognizing how the body (and mind) modifies its processes and activities to deal with acute illness is key. It is thus incumbent upon the clinician to work with, rather than against, the patients stressed body and ...
Out of experimental data that have not yet been published and in the light of relevant historical material, Dr. Monge has drawn certain conclusions about biological effects in high altitudes. The whole is presented as a preliminary study to be followed by a series of scientific papers. Three themes are interwoven in this fascinating account of altitude effects on man. They are, (1) the conclusions drawn from the experimental work of the Institute of Andean Biology, of which Dr. Monge is director; (2) the evidence in the chronicles of early Peru that the fair treatment of natives was one of the earliest policy conceptions of Inca government; and (3) successive colonial and republican governments of Peru, over a long period of time, have largely neglected problems of human conservation that arise among the highland population ...
Where this has all led to now is that I feel like living this high up was a pretty big challenge for the first several months. A challenge that my body took months to adapt to and to figure out. Now that I have made that adaptation I am beginning to feel like it is to my advantage to live at this altitude. It actually reminds me a lot of when I first moved to Juneau. It took me over a year to adapt to the terrain (super steep and in many areas super technical) in Juneau and turn what seemed like a negative thing into a very positive thing. In the case of the altitude I think a huge portion of this adaptation is purely physical, but I also dont discount that a large part of this is mental. For months I hard a very hard time accepting the way I feel when I run at 8,500+ ft. I just kept waiting for it to feel better. And day after day it just kept feeling pretty crappy, especially when I went up to 10, 11, 12k, and above. Now it still feels kind of crappy when I go up that high, but Ive come to ...
Where this has all led to now is that I feel like living this high up was a pretty big challenge for the first several months. A challenge that my body took months to adapt to and to figure out. Now that I have made that adaptation I am beginning to feel like it is to my advantage to live at this altitude. It actually reminds me a lot of when I first moved to Juneau. It took me over a year to adapt to the terrain (super steep and in many areas super technical) in Juneau and turn what seemed like a negative thing into a very positive thing. In the case of the altitude I think a huge portion of this adaptation is purely physical, but I also dont discount that a large part of this is mental. For months I hard a very hard time accepting the way I feel when I run at 8,500+ ft. I just kept waiting for it to feel better. And day after day it just kept feeling pretty crappy, especially when I went up to 10, 11, 12k, and above. Now it still feels kind of crappy when I go up that high, but Ive come to ...
How to prepare for an ultra marathon which is hold at an altitude where there is just 50% of the oxygen as on sea level? No idea if there is a standard preparation for this. I went out the last days for some runs. Every morning 6AM I went out for some stairs climbing up…
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Shes definitely a Florida girl, if this is cold. She has seen snow in her life...twice that I can recall offhand (a Scotland trip at 7mo, and last winter up in Virginia), but for the most part shes lived in the high 80s and brutal humidity that characterizes weather down here 90% of the time. To her, this is natural. The good thing, of course, is that thunderstorms are no big deal to her, being practically a daily occurrence over summers. Heat? Sun? Bring it on ...
Conclusions: Flies reared at constant benign temperatures were more fecund at all acclimationtemperatures. In contrast, flies reared under fluctuating natural or laboratory conditions weremore successful in locating food under cool conditions in the field, while constant cool rearingconditions led to high cold resistance. The fluctuating- and low-temperature rearing conditionsresulted in a similar metabolic profile, while the 24C rearing profile was distinct and showeda lack of plasticity. The effects of developmental acclimation on performance are thereforecomplex and cannot be captured through experimental comparisons of constant environments ...
IT is a well-known fact that the influence of a strange climate upon the emigrant, however little the new medium may differ from the mother-country in more or less essential qualities, exhibits itself at first in a kind of recrudescence of vigor, which, however, in a very short time, sometimes after a few days, gives place to a general languor. Days, weeks, or months, according to the degree of healthfulness of the place, may pass before the organism is again in equilibrium; and this fact is so generally recognized that every traveler expects it and prepares for it. A person just landed in a distant country would be chargeable with imprudence if he neglected the precautions which experience has prescribed for diminishing as much as possible the inconveniences of this critical period. What does this mean? Simply that the organization of the new-comer must bring itself into harmony with the new medium. It makes no difference that he finds in the strange climate, in the European hotels, comforts, ...
The objective of this project is to determine the cellular signals for plasticity in central nervous system components of ventilatory chemoreflexes during Chron...
Then in the distant past we met. Now Dima and Sasha arrived in the Alps. And rushed to the peak of Coca. Here among the mountains I was able to settle down in recent years, so friends came to visit me. And moved in backpacks bubbling wine and was in awe of fragrant cheese. The first step I had to kick myself somewhere above. So after plain living organism remembered the cold air over the mountains ...
As a result of English experience, Prof. J. Lane Notter, Netley Army Medical School, states that a prolonged residence in a hot climate doubtless deteriorates the system. Again he says that the grea...
I dont think Im the only one whos a bit confused about the weather. My timing was perfect to go sit outside about an hour ago. I got to watch a wild peach-faced lovebird tanking up on apples and seeds at our feeder. Wild peach-faced lovebirds are not unusual here in the Valley of the Sun, but its been several years since one has visited Casa Kittling. Since there was only one of the beautiful bright little birds, I think this was a "just passing through" visit, but we shall see ...
We leave at about 9:30am and spend the rest of the day playing cards back at the hostel. We check out a Cinema which is a bsement room with a 20" tv and a cupboard full of pirated DVDs. While sitting in the conservatory playing cards we notice some bags of water hanging from the ceiling, we wonder what they are. Tom genius suggestion is that theyre to hold down the ceiling and stop it blowing away, me and Julie crack up and with that Tom has one the comment of Nepal, second country in a row! Our guides eventually explain they are to scare the flies away.. ...
Leh / Ladakh - Day 1 My top event in 2015 has started. I arrived this morning at 7AM in Leh. Leh is the biggest city in Ladakh with around 30000 people and the place to be if you want to travel in the Karakorum Range. Its a huge tourist hub during the 3 month…
Given the mechanical adaptations observed in the heat-acclimated heart, long-term biochemical adaptive modalities identified in the heat-acclimated heart have opened a window for our understanding of their development and operation. A salient feature in cardiac contractility is calcium handling by the myocytes. Pressure generation requires an elaborate signaling system to amplify the contractile signal generated in the sarcolemma to deliver a large amount of calcium [primarily from the internal sarcoplasmic reticulum (SR) stores] needed to bind to troponin C, the calcium receptor that mobilizes the contractile proteins. The subsequent relaxation depends on reuptake of the calcium to its SR pools. Hence, the magnitude of pressure generation, as well as the velocities of contraction and relaxation, depend on the calcium signal amplitude (calcium transient) and its rate of return to the internal pool, respectively (8). Greater pressure production in the heat-acclimated myocyte, as hypothesized, was ...
Canterbury Acclimatisation Society.:. .[PER PRESS ASSOCIATION]i> y Uhristohuroh, April 16. ■ -The "annual meeting of the Acclimatisation Society...
Acclimatization important to prevent issues. Takes 2-3 weeks for this to occur and requires regular short exercise to achieve. This decreases your resting HR, decreases skin and core temperature, decreases salt loss, triggers sweating at lower temperature, and increases your ability to exercise.. Most therapeutic drugs are a risk factor for issues with heat related illness.. ...
In my view, education is more akin to shaping and growing oneself, of acclimatization to a community and to an environment. The learning of any subject is analogous to the formation of a literacy in that subject, based not only in speaking the right words, but also in seeing the world in a certain way, recognizing some things as important (and other things as not). Expectations are as important as knowledge in this view, the way we say something as important as what we say ...
A CHAPTER IN ACCLIMATIZATION His baptismal register spoke of him pessimistically as John Henry, but he had left that behind with the other maladies of infancy, and his friends knew him under the front-name of Adrian.
Four people died while going through the Nepalgung-Simikot-Hisla route to complete the religious yatra. The deaths have been attributed to health problems from low acclimatization...
There are 391 words containing A, C, L, T and Z: ACCLIMATIZABLE ACCLIMATIZATION ACCLIMATIZE ... ZYGOTICALLY ZYMOTECHNICAL ZYMOTICALLY. Every word on this site can be played in scrabble. Create other lists, starting with or ending with letters of your choice.
We spent the morning doing a steep trek up the hills behind Namche, rising about 500 metres in order to aclimatise to the altitude. When we reached our highest point, we could see Ama Dhablam through the clouds. The view is breath-taking, it makes me now want to glimpse Mt Everest more than ever. We…
Principal Investigator:MURATA Norio, Project Period (FY):1996 - 2000, Research Category:Grant-in-Aid for Specially Promoted Research
Enemies damaged by your Death and Decay have a chance to cower in place for 3 sec, but cannot suffer from this effect more than once per 10 sec. Damage may cancel the effect ...
Read "Regulation and characterization of four CBF transcription factors from Brassica napus, Plant Molecular Biology" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.
The fatty acid composition and fluidity of gill phospholipids and hemocyte membranes of a eurytherrnal bivalve, Placopecten magellanicus, were investigated following a 10°C reduction in acclimation temperature. The time course of the acclimation response from 15 to 5°C was also monitored over a 21-day period. Membrane physical properties were measured by means of an electron spin resonance (ESR) spin-labeling technique, using 5-doxyl stearic acid (5-SASL) as a probe. Changes in the fluidity of gill membranes were analyzed by incorporating 5-SASL into vesicles made from total gill phospholipid (PL). Membrane fluidity measurements showed that cold-acclimated scallop membranes were more fluid than those of warm-acclimated animals. However, the order parameter of 5-SASL was greatest during the first six days of the reduction in temperature, indicating a more rigid gill membrane structure. The fluidity of gill and hemocyte membranes were negatively correlated with the proportion of 20:5n-3 (r = ...
Low temperature adversely affects crop yields by restraining plant growth and productivity. Most temperate plants have the potential to increase their freezing tolerance upon exposure to low but nonfreezing temperatures, a process known as cold acclimation. Various physiological, molecular, and metabolic changes occur during cold acclimation, which suggests that the plant cold stress response is a complex, vital phenomenon that involves more than one pathway. The C-Repeat Binding Factor (CBF) pathway is the most important and well-studied cold regulatory pathway that imparts freezing tolerance to plants. The regulation of freezing tolerance involves the action of phytochromes, which play an important role in light-mediated signalling to activate cold-induced gene expression through the CBF pathway. Under normal temperature conditions, CBF expression is regulated by the circadian clock through the action of a central oscillator and also day length (photoperiod). The phytochrome and phytochrome
... You need to spend 3 nights in Namche Bazaar and give your body the chance to adjust the low oxygen.
We have talked with our guide and travel expert Maxim Bogatyrev to advice our climbers acclimatization program during the expedition to Muztagh Ata peak...The expedition to Muztagh Ata takes 25 days and starts from Bishkek. You will have 15 days to...
In order to clarify the mechanisms of heat acclimatization to tropical climates by permanent residence, changes in oral temperature due to heat load were compared in 10 male subjects in Chiang Mai, Thailand (tropical region) and 10 male subjects in Nagasaki, Japan (temperate region). Mean annual ambient temperature is 16.6℃ in Nagasaki and 25.9℃ in Chiang Mai. The experiments for the Thai subjects were performed in Chiang Mai and those for the Japanese subjects in Nagasaki during each regions hottest months. The constitutional characteristics of the Thai subjects were a little shorter and slightly leaner than the Japanese. After staying at rest in the experimental room at 32℃ and 35% of relative humidity for at least 30 min, the lower legs were immersed into a hot water bath of 43℃ for 30 min. Mean initial oral temperature was 37.06±0.07℃ in Japanese and 37.12±0.05℃ in Thai subjects (P,0.05). Oral temperature rose after heat load and reached to 37.54±0.06℃ and 37.59±0.06℃ in ...
Drought is a major social and economic problem resulting in huge yield reduction in the field. Todays challenge is to develop plants with reduced water requirements and stable yields in fluctuating environmental conditions. Arabidopsis thaliana is an excellent model for identifying potential targets for plant breeding. Drought tolerance in the field was successfully conferred to crops by transferring genes from this model species. While involved in a plant genomics programme, which aims to identify new genes responsible for plant response to abiotic stress, we identified ESKIMO1 as a key gene involved in plant water economy as well as cold acclimation and salt tolerance. All esk1 mutants were more tolerant to freezing, after acclimation, than their wild type counterpart. esk1 mutants also showed increased tolerance to mild water deficit for all traits measured. The mutants improved tolerance to reduced water supply may be explained by its lower transpiration rate and better water use efficiency (WUE),
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Read "Variation in freezing tolerance, water content and carbohydrate metabolism of floral buds during deacclimation of contrasting blackcurrant cultivars, Acta Physiologiae Plantarum" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.
The mechanisms described above - collectively referred to as acclimation - are triggered within the plant by environmental cues, of which the most important are seasonal changes in daylength and temperature. Differences among plant species range from the purely photoperiodic in which temperature plays almost no role to those that are purely temperature-controlled with no response to photoperiod (i.e., daylength). Most plants fall somewhere between these two extremes. In spring, once daylength extends beyond a certain point - known as critical daylength - deacclimation is initiated in photo-periodically sensitive species, active growth is triggered, and the plant will not become quiescent again until the shortened daylengths again trigger acclimation the following fall. Because the daylengths differ throughout the year at different distances from the equator, the cues that trigger spring growth (and winter acclimation as well) in a plant of Floridian provenance will be slightly different than ...
Of course, since the air pressure is much lower at higher altitudes, there is less of a potential driving oxygen to the tissues. The body uses many mechanisms to compensate for this decrease in potential, and those mechanisms are called acclimation. Among the important changes that are a part of high-altitude acclimation are increases in the total volume of air inspired (first stage of the oxygen cascade) and an increase in the oxygen-carrying capacity of the blood (second stage of the oxygen cascade). If one goes to a high altitude faster than the body is able to adjust, then various symptoms set in. Everyone can expect to experience hyperventilation, tachycardia (speeding heart) and palpitations (feeling the heart beat), and troubles with sleeping and digestion. In about half of the people who go above 4240 m, more serious problems begin which signal the onset of acute mountain sickness. These include headache, insomnia, nausea, decreased urine, and incoordination. These symptoms can ...
The cold acclimatization response in many bacterial species is a tightly regulated process, which ensures the correct folding of macromolecules. In enterobacteria, this response is in part dependent on polynucleotide phosphorylase, which is encoded by the gene pnp. Based on transcriptional analysis of the pnp locus of Salmonella enterica serovar Typhimurium, we show that pnp and the adjacent membrane lipoprotein nlpI gene form an operon with both genes contributing independently to the cold acclimatization response at 15 °C. Our findings thereby define a new role for NlpI in bacterial cold acclimatization.. ...
Principal Investigator:SHIDO Osamu, Project Period (FY):2011 - 2013, Research Category:Grant-in-Aid for Scientific Research (C), Section:一般, Research Field:Environmental physiology (including Physical medicine and Nutritional physiology)
Photosynthetic acclimation (photoacclimation) is the process whereby leaves alter their morphology and/or biochemistry to optimise photosynthetic efficiency and productivity according to long-term changes in the light environment. Three-dimensional (3D) architecture of plant canopies impose complex light dynamics, but the drivers for photoacclimation in such fluctuating environments are poorly understood. A technique for high-resolution 3D reconstruction was combined with ray tracing to simulate a daily time course of radiation profiles for architecturally contrasting field-grown wheat canopies. An empirical model of photoacclimation was adapted to predict the optimal distribution of photosynthesis according to the fluctuating light patterns throughout the canopies. Whilst the photoacclimation model output showed good correlation with field-measured gas exchange data at the top of the canopy, it predicted a lower optimal light saturated rate of photosynthesis (Pmax) at the base. Leaf Rubisco and ...
Based on the results that we have observed, it can be concluded, as hypothesized, that the expedition to Mount Denali results in a tighter coupling between the processes involved in ATP utilization and the processes involved in ATP synthesis. Moreover, the metabolic adaptations that were observed occurred in the absence of changes in mitochondrial potential. Evidence that a tighter coupling has occurred is indicated by the lower muscle IMP (used as a more sensitive indicator of changes in ATP) and higher PCr levels (observed during exercise following the expedition). Moreover, as in the earlier study (14), lower muscle lactates also were found, suggesting a possible reduction in glycolytic flux rate with acclimatization.. The similarity in findings between this study and an earlier study (14) is noteworthy given the different test conditions and altitude exposures. In the earlier study, acclimatization was examined following 3-wk residence at 4,300 m. The subjects were studied under carefully ...
The zebrafish (Danio rerio) is an important organism as a model for understanding vertebrate cardiovascular development. However, little is known about adult ZF cardiac function and how contractile function changes to cope with fluctuations in ambient temperature. The goals of this study were to: 1) determine if high resolution echocardiography (HRE) in the presence of reduced cardiodepressant anesthetics could be used to accurately investigate the structural and functional properties of the ZF heart and 2) if the effect of ambient temperature changes both acutely and chronically could be determined non-invasively using HRE in vivo. Heart rate (HR) appears to be the critical factor in modifying cardiac output (CO) with ambient temperature fluctuation as it increases from 78 ± 5.9 bpm at 18°C to 162 ± 9.7 bpm at 28°C regardless of acclimation state (cold acclimated CA- 18°C; warm acclimated WA- 28°C). Stroke volume (SV) is highest when the ambient temperature matches the acclimation temperature,
Novák A, Boldizsár Á, Ádám É, Kozma-Bognár L, Majláth I, Båga M, Tóth B, Chibbar R, Galiba G (2016) Light-quality and temperature dependent CBF14 gene expression modulates freezing tolerance in cereals. J. Exp. Bot. 67:1285-1295. doi: 10.1093/jxb/erv526. Gulyás Zs, Boldizsár A, Novák A, Szalai G, Pál M, Galiba G, Kocsy G (2014) Central role of the flowering repressor ZCCT2 in the redox control of freezing tolerance and the initial development of flower primordia in wheat. BMC Plant Biol. 14:91. doi: 10.1186/1471-2229-14-91. Kocsy G,Tari I, Vanková R, Zechmann B, Gulyás Zs, Poór P, Galiba G (2013) Redox control of plant growth and development. Plant Sci. 211:77- 91. doi: 10.1016/j.plantsci.2013.07.004. Soltész A, Smedley M, Vashegyi I, Galiba G, Harwood W, Vágújfalvi A (2013) Transgenic barley lines prove the involvement of TaCBF14 and TaCBF15 in the cold acclimation process and in frost tolerance. J. Exp. Bot. 64:1849-1862. doi:10.1093/jxb/ert050. Galiba G, Vágújfalvi A, Li ...
We found that the incidence of AMS of the smoking group decreased by 10% compared with that of the nonsmoking group. This result contrasts with previous studies on AMS risk factors in tourists and climbers [1-3] but confirms a tendency noted in another prospective cohort study (crude OR 0.66, 95% CI 0.41-1.07, P = 0.09) [8]. Our results are consistent with the results of Wu et al.[6], who reported an 11% decrease in the incidence of AMS in smokers compared with nonsmokers. Hultgren [4] believes that smoking may increase the incidence of AMS and is not conducive to high altitude acclimatization because a larger amount of CO hemoglobin in smokers blood will increase the likelihood of hypoxia. Although the incidence of AMS in the smoking population was lower than that in the nonsmoking population, the incidences of mental status changes and cough in smokers at high altitude were 4% and 7% higher than nonsmokers under the same conditions.. Our results showed slower cerebral blood flow velocities in ...
It is the author's thesis that life at high altitudes deserves a new biology concerned with beings adapted to reduced atmospheric oxygen tension. This field of biology illustrates the principle that the reactions of living organisms are related to the duration as well as to the intensity of imposed stresses. There is every extreme in response ranging from the vomiting newcomer to the hard-working, healthy resident. The research conducted by the author and his associates has been in two directions. He has looked back to the history of the inhabitants of the uplands of the Andes. This region, lying above 10,000 feet altitude, has been the home of millions of people for hundreds of years.
Alex Barber updated from C1 last night, "today (April 1st) I moved up to Camp 1 at about 17,000′ from 13,800′ BC. Enjoyed good weather in the morning which turned to light snow in the afternoon. The route to C1 is quite a distance from BC and has some enjoyable climbing. Low angle water ice and low grade mixed climbing, also a precarious arm wrap rappel of some 200′ on the most insane choss… The recent snowfall - plowing through knee deep snow - made some sections of the route very tiring. Im hoping the weather holds and I am able to make Camp 2 tomorrow ...
The protein encoded by this gene is the beta subunit of a heterodimeric core-binding transcription factor belonging to the PEBP2/CBF transcription factor family which master-regulates a host of genes specific to hematopoiesis (e.g., RUNX1) and osteogenesis (e.g., RUNX2). The beta subunit is a non-DNA binding regulatory subunit; it allosterically enhances DNA binding by alpha subunit as the complex binds to the core site of various enhancers and promoters, including murine leukemia virus, polyomavirus enhancer, T-cell receptor enhancers and GM-CSF promoters. Alternative splicing generates two mRNA variants, each encoding a distinct carboxyl terminus. In some cases, a pericentric inversion of chromosome 16 [inv(16)(p13q22)] produces a chimeric transcript consisting of the N terminus of core-binding factor beta in a fusion with the C-terminal portion of the smooth muscle myosin heavy chain 11. This chromosomal rearrangement is associated with acute myeloid leukemia of the M4Eo subtype. Two ...
Brown fat cells, freshly isolated from cold-acclimated hamsters and rats, did not respond to norepinephrine addition with the characteristic increase in oxygen consumption (heat production) seen in cells from control animals. However, incubation of t
The entrance of every single batch of gilts has to pursue two objectives: on the one hand the performance of good quarantine protocols is needed to ensure that newly arrived gilts will not introduce new heterologous strains of PRRS in swine. On the other hand performance of good acclimatisation protocols prior to service is fundamental to ensure that gilts are well immunised and are not shedding PRRS virus. Monitoring the whole process is essential in order to achieve these objectives.. Focusing on the acclimatisation process, there are two different and widely used strategies to protect against PRRS in swine. On the one hand, we can use modified live virus PRRS vaccines. The vaccination protocol is usually two doses before the first insemination, separated by 3 or 4 weeks, although some vaccines have demonstrated efficacy with a single dose prior to mating. The objective of vaccines is to induce protection against the farms strain and also against any strains that may enter into the farm. On ...
Namche Bazaar is the capital of the Khumbu ( Everest ) region in Nepal, in the middle of the Himalaya. The town has no roads and is a frequent stop for trekkers going to Everest. It is the ideal place to acclimatize for the altitude, before trekking higher.
Private villa with Thermal Solar Panels on the flat roof (source: N.Baumann). The Canton of Valais is one of the 26 cantons of Switzerland, situated in the southwestern part of the country, around the valley of the Rhône from its headwaters to Lake Geneva, separating the Pennine Alps from the Bernese Alps. The canton is simultaneously one of the driest regions of Switzerland in its central Rhône valley and among the wettest, having large amounts of snow and rain up on the highest peaks found in Switzerland.. Designing the Biosolar roof -selecting Substrates. The first challenge was to locate a good local substrate -because of the extreme climate in the region. At the final mixture consisted of sub soil (soil excavated from the site). This subsoil also consists of small pieces of slate like rock. To this was added a mixture of gravel/crushed bricks.. ...
This note is not part of the notice, but is intended to indicate its general effect.]. This notice provides for the issue by the Acclimatization Society or by the Secretary for Internal Affairs of authorities for the taking of little shags on certain trout waters in the Auckland, Tauranga, and Rotorua Acclimatization Districts where the taking of little shags is considered necessary for the adequate conservation of trout stocks in those waters, and sets out the conditions on which those authorities may be issued. ...
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You should know approximately what your working weight will be before you begin your warm up. For moderate percentage loads you will usually know exactly what weight you plan to use or at least within 5 to 10 pounds of it. For near-maximal training such as singles or doubles you only need to make a guess since you will be able to judge your working weight by the warm up and acclimation process itself.. Always begin with an empty bar. Even advanced trainees should start with the bar empty which usually means 45 pounds for Olympic barbells although some cheaper bars may weigh around 40 pounds. Starting with an empty bar serves a number of purposes.. Depending on how complicated and long your general warm up routine is you may need more or less time to get in the groove of your squats, deadlifts, or other heavy lift. For those with complex needs who not only need good mobility warm up routines but also specific stretches for problem areas more time with very little weight to re-coordinate ...
Recent research has shown that nitric oxide (NO) produced by nitric oxide synthases (Nos) is an inhibitor of ion transporter activity and a modulator of epithelial ion transport in fish but little is known on changes in the Nos/NO system during osmotic stress. We hypothesized that the Nos/NO system responds to salinity changes as an integrated part of the acclimation process. Expression and localization of nos1/Nos1 and nos2/Nos2 were investigated in gill, kidney and intestine of FW- and SW-transferred trout using qPCR, Western blotting and immunohistochemistry, along with expressional changes of major ion transporters in the gill ...
Abstract: Acclimation of rats to cooling (+3 C for 30 days) is accompanied by changes in the content of gangliozides, cerebrozides and sulfatides of brain during 6 hours, returned to the control level in next periods of acclimation. Changes in the content of sulfatides, and in smaller degree of cerebrozides and gangliozides depend from hypoxic stability of rats ...
The physiological process of cold acclimation protects plants native to the temperate regions of the world from the deleterious effects of low and freezing temperatures. This is achieved by a series of transcriptional, regulatory, and metabolic changes that enable continued growth and survival. Within minutes of exposure to temperatures below ca. 10°C, a complex cascade of transcriptional events is initiated to accomplish these changes. The initial alarm phase favors the rapid induction of a library of stress proteins with protective functions (e.g. COR proteins). This is followed by a cold hardened phase, characterized by maximal freezing tolerance, which continues until either the stress is removed, or the plants metabolic and/or developmental state can no longer support maximal resistance.. We have studied some of the important transcription factors and transcriptional changes associated with the initial alarm and later hardened phases of cold acclimation in the herbaceous annual ...
Juveniles of Solea senegalensis were fed with commercial pellets under controlled conditions at two environmental Mediterranean temperatures (15 and 20 °C) for two months. After this period, the accumulation of essential and non-essential metals and metallothionein (MT) levels was measured in liver and kidney by inductively coupled plasma mass spectrometry (ICP-MS) and pulse polarography, respectively. The bioaccumulation factor (BAF) for selected metals in both tissues was calculated in relation to levels present in the feed. Tissue partitioning (liver/kidney) and molar ratios, considering the metal protective mechanisms: MT and Selenium (Se), were included for evaluating the detoxification capacity of each tissue. Ag, Cd, Cu and Mn were preferentially accumulated in the liver whereas Co, Fe, Hg, Se and Zn were found in larger concentrations in the kidney, and higher temperature enhanced the accumulation of some of them, but not all. MT content in liver, but not in kidney, was also influenced ...
Acclimatization,Acute Mountain Sickness,sleep,high altitude,diskit,drass,illness,health,hospital,body,hydration,water,drugs,medicine,oxygen
Corals living on deeper reefs inhabit an environment characterized by low light intensities and limited spectral composition of the incident irradiance [6,21]. While responses of zooxanthellate corals to low irradiances are relatively well studied [12,36], the effects of the spectral composition of light on their photobiology are far from being understood. In corals, the typical acclimatory response to low light is an increase in symbiont pigmentation and/or numbers [12,27,36], causing a higher optical thickness of the tissue. Our data suggest the maximized absorption of the blue-green light prevalent at greater depths could come at the cost of poor tissue penetration of these wavelengths. This results in a paradox, where corals acclimation strategies to maximize absorption decrease the tissue penetration of the blue-dominated irradiance at depth and may consequently limit their capacity to sustain symbiont photosynthesis in deeper tissue areas. The chlorophyll emission cross sections reveal ...
Alterations in nonshivering thermogenesis are presently discussed as being both potentially causative of and able to counteract obesity. However, the necessity for mammals to defend their body temperature means that the ambient temperature profoundly affects the outcome and interpretation of metabolic experiments. An adequate understanding and assessment of nonshivering thermogenesis is therefore paramount for metabolic studies. Classical nonshivering thermogenesis is facultative, i.e. it is only activated when an animal acutely requires extra heat (switched on in minutes), and adaptive, i.e. it takes weeks for an increase in capacity to develop. Nonshivering thermogenesis is fully due to brown adipose tissue activity; adaptation corresponds to the recruitment of this tissue. Diet-induced thermogenesis is probably also facultative and adaptive and due to brown adipose tissue activity. Although all mammals respond to injected/infused norepinephrine (noradrenaline) with an increase in metabolism, ...
Looking for online definition of Non-shivering thermogenesis in the Medical Dictionary? Non-shivering thermogenesis explanation free. What is Non-shivering thermogenesis? Meaning of Non-shivering thermogenesis medical term. What does Non-shivering thermogenesis mean?
Altitudes above 1,500 metres (4,900 ft) start to affect humans.[8] Humans cannot live in very high altitudes above 5,500-6,000 metres (18,000-19,700 ft).[9] Atmospheric pressure decreases at high altitudes. This affects humans because there is less oxygen to breathe.[10] This can cause illnesses such as altitude sickness, high altitude pulmonary edema (fluid in the lungs), and high altitude cerebral edema (fluid in the brain, causing headaches and confusion).[4]. The human body can deal with high altitude by breathing faster, having a higher heart rate, and changing the blood itself to have more red blood cells that can carry oxygen.[11][12] This can take days or weeks to happen. This works for people who live in the high mountains, and mountain climbers. For climbers, this is called acclimatization. Pilots and other people who go quickly to high altitudes need to be in a space suit, pressure suit, or inside a pressurized airplane, so the air is still the same as at the ground. Above 8,000 ...
Singlet oxygen is a major type of reactive oxygen species that is generated in excess light by energy transfer from excited chlorophylls. We discovered that Chlamydomonas exhibits an acclimation response to singlet oxygen stress that enables cells to survive singlet oxygen levels that would otherwise be lethal. This response involves retrograde signaling from the chloroplast to the nucleus to regulate expression of nuclear genes, and we have taken a genetic approach to investigate this signaling pathway.. During oxygenic photosynthesis, singlet oxygen is generated mainly in the photosystem II reaction center, where it can cause photo-oxidative damage and inhibit photosynthesis. Like all aerobic organisms, algae and plants have evolved sensing, signaling, and protective mechanisms to cope with various reactive oxygen species, including singlet oxygen. To dissect the signal transduction pathway involved in sensing and responding to singlet oxygen in Chlamydomonas, we have isolated and studied ...
Inhibition of ammonia excretion (J(amm)) is a common response to Cu exposure in freshwater (FW) and seawater (SW) organisms. To determine the mechanism of this response, a euryhaline species of guppy (Poecilia vivipara) was exposed to 20 μg Cu/l in FW (0 ppt) and SW (25 ppt) for 96 h. In both salinities, Cu transiently inhibited ammonia excretion (J(amm)) followed by a full recovery by the end of the 96 h exposure. The activities of Na(+)/K(+)-ATPase, H(+)-ATPase, and carbonic anhydrase (CA) were examined in the gills at 12 and 96 h of Cu exposure. In both salinity acclimations, CA activity was significantly inhibited following 12h of Cu exposure in P. vivipara, marking the first in vivo evidence of Cu-induced inhibition of CA in fish. Moreover, the inhibition and recovery of this enzyme were correlated with the inhibition and recovery of J(amm) in both salinity acclimations. The blockade of CA potentially acts as a common mechanism of J(amm) inhibition in FW and SW. There were no significant ...

Acclimatization - WikipediaAcclimatization - Wikipedia

Acclimatization occurs in a short period of time (hours to weeks), and within the organisms lifetime (compared to adaptation, ... Acclimatisation (also called acclimation or acclimatation) is the process in which an individual organism adjusts to a change ... Acclimatization to high altitude continues for months or even years after initial ascent, and ultimately enables humans to ... Note: acclimation and acclimatization are two very different terms that are not interchangeable. Acclimation is used under ...
more infohttps://en.wikipedia.org/wiki/Acclimatization

Acclimatization | biology | Britannica.comAcclimatization | biology | Britannica.com

Acclimatization,, any of the numerous gradual, long-term responses of an organism to changes in its environment. Such responses ... For example, in acclimatization to the low pressure of oxygen (hypoxia) in high mountains, animals, including man, improve the ... Thus acclimatization does not invariably mean that a plant or animal is adapted to function at its maximum rate. In the hot ... More About Acclimatization. 3 references found in Britannica articles. Assorted References. *atmospheric pressure* In biosphere ...
more infohttps://www.britannica.com/science/acclimatization

Acclimatization to Hot Environments | The BMJAcclimatization to Hot Environments | The BMJ

Acclimatization to Hot Environments. Br Med J 1935; 2 doi: https://doi.org/10.1136/bmj.2.3889.135 (Published 20 July 1935) Cite ...
more infohttp://www.bmj.com/content/2/3889/135.1

Altitude acclimatization, training and performance.Altitude acclimatization, training and performance.

In an attempt to maintain aerobic metabolism during increased effort, a series of acclimatization responses occur. Amon ... Acclimatization / physiology*. Altitude*. Humans. Physical Education and Training*. From MEDLINE®/PubMed®, a database of the U. ... Acclimatization has also been shown to induce alteration in selected properties of the muscle cell, some of which may be ... In an attempt to maintain aerobic metabolism during increased effort, a series of acclimatization responses occur. Among the ...
more infohttp://www.biomedsearch.com/nih/Altitude-acclimatization-training-performance/11101269.html

Acclimatization - Biodiversity Heritage LibraryAcclimatization - Biodiversity Heritage Library

Subjects: Acclimatisation Society of Victoria Acclimatization Acclimatization (Plants) Animal introduction Periodicals Plant ... Subjects: Acclimatization Periodicals Victoria Zoological and Acclimatisation Society of Victoria Zoology. BHL Collections: BHL ... Subjects: Acclimatization Acclimatization (Plants) Animal introduction Australia Plant introduction. BHL Collections: BHL ... The annual report of the Zoological and Acclimatisation Society of Victoria, and report of the annual meeting of the Society. ...
more infohttps://www.biodiversitylibrary.org/subject/Acclimatization

Pre-Season Heat-Acclimatization Guidelines  | MomsTeamPre-Season Heat-Acclimatization Guidelines | MomsTeam

High school-specific pre-season heat acclimatization guidelines issued by National Athletic Trainers Association (NATA) are ... 14-day heat acclimatization period. The heat-acclimatization period is defined as the initial 14 consecutive days of preseason ... A one-hour maximum walk-through is permitted during the first five days of the heat-acclimatization period, with a three-hour ... During the first five days of the heat-acclimatization process, no more than one practice per day. ...
more infohttp://www.momsteam.com/health-safety/pre-season-heat-acclimatization-guidelines

UKC Forums - Bernese Oberland acclimatisationUKC Forums - Bernese Oberland acclimatisation

Im looking for easy (AD or below) snow peaks suitable for acclimatisation around the Oberland, preferably with bivi potential ...
more infohttps://www.ukclimbing.com/forums/expedition+alpine/bernese_oberland_acclimatisation-554946

Acclimatization समानार्थी | कोलिन्स अमेरिकी पर्यायकोशAcclimatization समानार्थी | कोलिन्स अमेरिकी पर्यायकोश

Acclimatization: के लिए एक और शब्द adaptation, adjustment, habituation, inurement, naturalization , कोलिन्स अमेरिकी पर्यायकोश ...
more infohttps://www.collinsdictionary.com/hi/dictionary/american-thesaurus/acclimatization

Acclimatization Mechanisms During Ascent to 7500m - Full Text View - ClinicalTrials.govAcclimatization Mechanisms During Ascent to 7500m - Full Text View - ClinicalTrials.gov

Acclimatization Mechanisms During Ascent to 7500m. The safety and scientific validity of this study is the responsibility of ... Acclimatization improves submaximal exercise economy at 5533 m. Scand J Med Sci Sports. 2013 Aug;23(4):458-67. doi: 10.1111/j. ... Acclimatization Mechanisms During Ascent to 7500m. Effects of Ascent Protocol on Acute Mountain Sickness and Cardiorespiratory ... Nocturnal periodic breathing during acclimatization at very high altitude at Mount Muztagh Ata (7,546 m). Am J Respir Crit Care ...
more infohttps://clinicaltrials.gov/ct2/show/NCT00603122

Acclimatization Quiz - The Full WikiAcclimatization Quiz - The Full Wiki

Question 5: Acclimatization occurs in a short time, (days to weeks) and within one organisms lifetime (compare ________).. ... Question 6: Acclimatization or acclimation is the process of an organism adjusting to change in its environment, allowing it to ...
more infohttp://quiz.thefullwiki.org/Acclimatization

Decreased exercise muscle lactate release after high altitude acclimatization.Decreased exercise muscle lactate release after high altitude acclimatization.

Blood lactate concentration during exercise decreases after acclimatization to high altitude, but it is not clear whether there ... Acclimatization / physiology*. Adult. Altitude*. Anoxia / metabolism. Exercise / physiology*. Femoral Artery. Humans. Iliac ... While breathing O2-enriched air after acclimatization at a given O2 consumption the venous and arterial lactate concentrations ... Blood lactate concentration during exercise decreases after acclimatization to high altitude, but it is not clear whether there ...
more infohttp://www.biomedsearch.com/nih/Decreased-exercise-muscle-lactate-release/2793749.html

NOTEBOOK: PIAA adopts three-day heat acclimatization program - Sports - The Times-TribuneNOTEBOOK: PIAA adopts three-day heat acclimatization program - Sports - The Times-Tribune

Contact, however, is not permitted during the first two days of heat acclimatization, but can take place on the third day. ... Each head football coach must come up with a heat acclimatization proposal and submit it to the school principal for approval. ... No practice session during the heat acclimatization process can last more than three hours. That practice must be followed by a ... It would require all member schools to either complete the three-day heat acclimatization process the week prior to the ...
more infohttp://thetimes-tribune.com/sports/notebook-piaa-adopts-three-day-heat-acclimatization-program-1.1465625

Acclimatization of Micropropagated Plants to Ex Vitro Conditions | SpringerLinkAcclimatization of Micropropagated Plants to Ex Vitro Conditions | SpringerLink

Dóaz-PÉrez, J.C., Shackel, K.A., Sutter, E.G.: Effect of in vitro-formed roots and acclimatization of water status and gas ... Colón-Guasp, W., Nell, T.A., Kane, M.E., Barrett, J.E.: Effects of abscisic acid on ex vitro acclimatization of Aronia ... Eliasson, M.K., Beyl, C.A., Barker, P.A.: In vitro responses and acclimatization of Prunus serotina with paclobutrazol.-J. ... Noe, N., Bonini, L.: Leaf anatomy of highbush blueberry grown in vitro and during acclimatization to ex vitro conditions.-Biol ...
more infohttps://link.springer.com/article/10.1023%2FA%3A1002688208758

PIAA football teams begin heat acclimatization practices Monday - Sports - GoErie.com - Erie, PAPIAA football teams begin heat acclimatization practices Monday - Sports - GoErie.com - Erie, PA

... practices.The PIAA put in a policy five years ago that all players must go through five days of heat acclimatization to get ... High school football teams around Pennsylvania will begin the season Monday with heat acclimatization ... PIAA football teams begin heat acclimatization practices Monday. Times-News staff Sunday. Aug 5, 2018 at 6:11 PM Aug 5, 2018 at ... The PIAA put in a policy five years ago that all players must go through five days of heat acclimatization to get used to the ...
more infohttp://www.goerie.com/sports/20180805/piaa-football-teams-begin-heat-acclimatization-practices-monday

Erythrocytes retain hypoxic adenosine response for faster acclimatization upon re-ascent.  - PubMed - NCBIErythrocytes retain hypoxic adenosine response for faster acclimatization upon re-ascent. - PubMed - NCBI

Erythrocytes retain hypoxic adenosine response for faster acclimatization upon re-ascent.. Song A1, Zhang Y1, Han L1, Yegutkin ... Faster acclimatization to high altitude upon re-ascent is seen in humans; however, the molecular basis for this enhanced ... a) Experimental illustration for acclimatization hypoxic adenosine response. (b) Erythrocyte life span was indicated by biotin ... Elevated circulating purinergic components are associated with acclimatization and subsequent hypoxic adenosine response upon ...
more infohttps://www.ncbi.nlm.nih.gov/pubmed/?otool=uchsclib&term=28169986

Metabolic Acclimatization to Tropical Heat | The American Journal of Tropical Medicine and HygieneMetabolic Acclimatization to Tropical Heat | The American Journal of Tropical Medicine and Hygiene

Just what does acclimatization, through the weeks and months of exposure, mean in terms of mental and physiologic processes? It ... Complete acclimatization to tropical heat has two quite distinct physiologic aspects. One of these is called into play during ... Just what does acclimatization, through the weeks and months of exposure, mean in terms of mental and physiologic processes? It ... Complete acclimatization to tropical heat has two quite distinct physiologic aspects. One of these is called into play during ...
more infohttp://www.ajtmh.org/content/journals/10.4269/ajtmh.1945.s1-25.59

The American Journal of Tropical Medicine and Hygiene | Carlos Monge. Acclimatization in the AndesThe American Journal of Tropical Medicine and Hygiene | Carlos Monge. Acclimatization in the Andes

Individual Acclimatization, Racial Acclimatization, and Altitude and Military Operations. ... Acclimatization in the Andes Pp. vii plus 111 plus 6 reference plus 8 index. Institute of Andean Biology, University of San ... "Acclimatization in the Andes" is based on his historical research. This is revealed by the chapter headings, Evidence of ...
more infohttp://www.ajtmh.org/content/journals/10.4269/ajtmh.1949.s1-29.6.TMs1-290060985a

Cotopaxi Express:  Acclimatization Hike on Rucu Pichincha | RMI Expeditions BlogCotopaxi Express: Acclimatization Hike on Rucu Pichincha | RMI Expeditions Blog

Follow the RMI Expeditions blog for the latest news from our expeditions to mountains around the world including Mt. Rainier, Denali, Mt. Kilimanjaro, Everest and more.
more infohttps://www.rmiguides.com/blog/2011/12/12/cotopaxi_express_acclimatization_hike_on_rucu_pichincha1

Whats Heat Acclimatization? How Can We Use It in Training?What's Heat Acclimatization? How Can We Use It in Training?

... youve probably wondered about heat acclimatization without even knowing it. ... What is Heat Acclimatization and How Can We Use It in Training?. ... What is Heat Acclimatization and How Can We Use It in Training? ... youve probably wondered about heat acclimatization without even knowing it. ...
more infohttps://www.quickanddirtytips.com/health-fitness/exercise/what-is-heat-acclimatization-and-how-can-we-use-it-in-training

Papers Past | Canterbury Acclimatisation Society. (Ashburton Guardian, 1890-04-17)Papers Past | Canterbury Acclimatisation Society. (Ashburton Guardian, 1890-04-17)

Canterbury Acclimatisation Society.:. .[PER PRESS ASSOCIATION]i, y Uhristohuroh, April 16. ■ -The "annual meeting of the ... Canterbury Acclimatisation Society. Ashburton Guardian, Volume VII, Issue 2403, 17 April 1890 Using This Item. See our ... The "annual meeting of the Acclimatisation Society was held to-night, 200 raera- * al,ers being " present; and the Hon J. T. ... Canterbury Acclimatisation Society., Ashburton Guardian, Volume VII, Issue 2403, 17 April 1890 ...
more infohttps://paperspast.natlib.govt.nz/newspapers/AG18900417.2.17

Ac, acclimatization, air conditioner, cooling system, electronics, split-system, technology icon | Icon search engineAc, acclimatization, air conditioner, cooling system, electronics, split-system, technology icon | Icon search engine

... acclimatization, air conditioner, cooling system, electronics, split-system, technology icon in .PNG or .ICO format. Icon ... Ac, acclimatization, air conditioner, cooling system, electronics, split-system, technology icon. * Basic license · Categories ...
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Reduced calcification and lack of acclimatization by coral colonies growing in areas of persistent natural acidification | PNASReduced calcification and lack of acclimatization by coral colonies growing in areas of persistent natural acidification | PNAS

Acclimatization, or the potential for an organism to adjust to changes in an environment via physical modifications, is ... Reduced calcification and lack of acclimatization by coral colonies growing in areas of persistent natural acidification. ... Reduced calcification and lack of acclimatization by coral colonies growing in areas of persistent natural acidification ...
more infohttps://www.pnas.org/content/110/27/11044

Effect of High Altitude Exposure, Acclimatization and Re-exposure on Cerebral Autoregulation in LowlandersEffect of High Altitude Exposure, Acclimatization and Re-exposure on Cerebral Autoregulation in Lowlanders

Home » Citations » Effect of High Altitude Exposure, Acclimatization and Re-exposure on Cerebral Autoregulation in Lowlanders ... Effect of High Altitude Exposure, Acclimatization and Re-exposure on Cerebral Autoregulation in Lowlanders. 2016-07-13 00:08:21 ... More From BioPortfolio on "Effect of High Altitude Exposure, Acclimatization and Re-exposure on Cerebral Autoregulation in ... Prospective interventional trial in lowlanders evaluating the effect of acute exposure, acclimatization and re-exposure to high ...
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American Acclimatization Society - WikipediaAmerican Acclimatization Society - Wikipedia

The American Acclimatization Society was a group founded in New York City in 1871 dedicated to introducing European flora and ... "Acclimatization and Domestication of Useful Animals") had urged the French government to introduce, and when necessary ... January 2001 The History of Soy Pioneers Around the World American Acclimatization Society, New York Times, November 15, 1877 ... Marzluff writes that the motives of the 19th century acclimatization enthusiasts were largely cultural: "Western European ...
more infohttps://en.wikipedia.org/wiki/American_Acclimatization_Society
  • Another surprising characteristic of acclimatization is its anticipatory nature-it can develop before the change occurs. (britannica.com)
  • By: Society for the Acclimatisation of Animals, Birds, Fishes, Insects and Vegetables within the United Kingdom. (biodiversitylibrary.org)
  • Marzluff writes that the motives of the 19th century acclimatization enthusiasts were largely cultural: "Western European settlers introduced many species throughout the world because they wanted birds from their homelands in their new environs. (wikipedia.org)
  • Not only does acclimatization prepare them with a margin of safety but some microorganisms, insects, and plants tolerate experimental exposure at temperatures far colder or warmer than ever occur in nature. (britannica.com)
  • Dhawan, V., Bhojwani, S.S.: Hardening in vitro and morpho-physiological changes in the leaves during acclimatization of micropropagated plants of Leucaena leucocephala (Lam. (springer.com)
  • In dealing with acclimatization, the influence of climate upon life can be treated under headings of adjustments to temperature, humidity, salinity, light, pressure, and certain chemical substances in the environment. (britannica.com)
  • The numerous sudden changes that evoke rapid and short-term responses via the nervous and hormonal systems are not examples of acclimatization. (britannica.com)
  • Two groups of mountaineers ascend with different acclimatization time to the summit. (clinicaltrials.gov)
  • Once he is well, he will decide on an alternative acclimatization cycle in preparation for the summit bid. (everestnews.com)
  • Anticipation of acclimatization seems to require a sense of time by which the coming environmental conditions can be predicted. (britannica.com)
  • Acclimatization to extreme conditions (that is, the north, hot climates, and mountain climates) places the greatest strain on the adaptive mechanisms. (thefreedictionary.com)
  • I'm looking for easy (AD or below) snow peaks suitable for acclimatisation around the Oberland, preferably with bivi potential around 3000m. (ukclimbing.com)
  • We measured iliac venous and femoral arterial lactate concentrations and iliac venous blood flow during cycle exercise before and after acclimatization to 4,300 m. (biomedsearch.com)
  • Dóaz-PÉrez, J.C., Shackel, K.A., Sutter, E.G.: Effect of in vitro -formed roots and acclimatization of water status and gas exchange of tissue-cultured apple shoots. (springer.com)
  • 23 April: The team began their second acclimatization cycle on 21 April, moving up to Camp 2 on a warm and sunny day. (everestnews.com)
  • While breathing O2-enriched air after acclimatization at a given O2 consumption the venous and arterial lactate concentrations and the venous and arterial concentration differences were significantly lower, and the net lactate release tended to be lower than while breathing ambient air at sea level before acclimatization. (biomedsearch.com)