نتایج جستجو برای: optimum temperature
تعداد نتایج: 511431 فیلتر نتایج به سال:
Leprosy is a fascinating disease. It prcsents several unsolved problems and therefore offers a great challenge to the medical scientist. Dr. Binford. Thank you very much, Dr. Job, for this brief but compact story of the pathology of leprosy. We havc to apologizc for giving you such a large assignment for 20 minutes, but you accomplished it well and I am sure that those of the audience who have ...
Hot beverages such as tea, hot chocolate, and coffee are frequently served at temperatures between 160 degrees F (71.1 degrees C) and 185 degrees F (85 degrees C). Brief exposures to liquids in this temperature range can cause significant scald burns. However, hot beverages must be served at a temperature that is high enough to provide a satisfactory sensation to the consumer. This paper presen...
The Antarctic basidiomycetous yeast Mrakia blollopis SK-4 fermented ethanol between pH 5.0 and pH 10.0 with optimum pH at 8.0-10.0. Knowledge of ethanol fermentability as to the genus Mrakia remains incomplete. Further experiments are required to elucidate the ethanol fermentability of genus e.g., as to optimum fermentation pH, optimum fermentation temperature, and cell viability during ferment...
Heat-tolerant and -sensitive Lycopersicon esculentum Mill. and L. pimpinellifolium (Jusl.) Mill. genotypes were grown in the greenhouse under optimum(27/23C, day/night) and high-temperature (35/23C) stress regimes. Heat tolerance levels in the genotypes were established by determining percent fruit set at high and optimum temperatures. Under optimum temperature, fruit set ranged from 41% to 84%...
To date, the spin glass paradigm has been gainfully used in solving a number of optimization problems by devising a mapping between our understanding of spin interactions within a natural spin glass and the given optimization problems. Among the determining factors in a natural spin glass, phase transition is a physical phenomenon that is controlled by temperature. Depending on the spin glass’s...
• It is well established that individual organisms can acclimate and adapt to temperature to optimize their functioning. However, thermal optimization of ecosystems, as an assemblage of organisms, has not been examined at broad spatial and temporal scales. • Here, we compiled data from 169 globally distributed sites of eddy covariance and quantified the temperature response functions of net eco...
Increasing atmospheric CO₂ concentrations are expected to impact pelagic ecosystem functioning in the near future by driving ocean warming and acidification. While numerous studies have investigated impacts of rising temperature and seawater acidification on planktonic organisms separately, little is presently known on their combined effects. To test for possible synergistic effects we exposed ...
By means of UV radiation 74 physiological mutants of the dermatophyte Trichophyton mentagrophytes (Robin) Blanchard were induced. These mutants had changed optimum cultivation temperature and mostly changed morphology and sporulation as well.
The RNA world hypothesis describes a stage in the early evolution of life in which catalytic RNAs mediated the replication of RNA world organisms. One challenge to this hypothesis is that most existing ribozymes are much longer than what may be expected to originate from prebiotically plausible methods, or from the polymerization by currently existing polymerase ribozymes. We previously develop...
Purpose In this experiment you will examine the effect of temperature on retention in isothermal gas chromatography, and use this information to determine the heat of solution of the solute in the stationary phase and to determine the temperature for optimum retention. You will also examine the effect of flow rate on efficiency and construct a van Deemter plot, and determine the flow rate for o...
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