Dialysis
... levels. Patients weigh themselves, and measure
temperature and blood pressure daily to determine whether the ... Standing and sitting blood pressures are taken.
temperature is taken.
Access is setup. For patients with a ... pressure, and weight are all measured again.
temperature changes may indicate infection. BP discussed ...
Cold-blooded
... such as solar radiation . As the environmental
temperature increases, the animal's metabolic rate will ... growth, repair and reproduction.
Types of
temperature control
Examples of this
temperature control include:
Snakes and lizards ...
Warm-blooded
... ) animal is one that can keep its core body
temperature at a nearly constant level regardless of the
temperature of the surrounding environment (that is, to ... , warm-blooded animals control their body
temperature by regulating their metabolic rates .
...
Gradient
...
Examples
Consider a room in which the
temperature is given by a scalar field φ , so at each point
( x , y , z ) the
temperature is φ( x , y , z ) . We
will assume that the
temperature does not change in time. Then, at
each point in ...
Homeostasis
... When sunlight is plentiful and atmospheric
temperature climbs, the phytoplankton of the ocean surface ... increase the atmospheric albedo and lower the
temperature of the atmosphere.
Biological homeostasis ... to sustain life; these include properties like
temperature , salinity , and acidity , and the ...
Polymerase chain reaction
... bacteria that grow in geysers at a
temperature of over 110C. The DNA-Polymerase taken from these ... cools the reaction tubes within it to the precise
temperature required for each step of the reaction. To ... of the length of the primers and their melting
temperature (Tm) depends on a number of considerations. The ...
Primer
... of the length of the primers and their melting
temperature depends on a number of considerations. The melting (or annealing)
temperature of a primer is defined as the
temperature below which the primer will anneal to the DNA ...
Thermoregulation
... is the ability of an organism to keep its body
temperature within certain boundaries, even when
temperature surrounding is very different.
This process is ... that thermoregulates is one that keeps its
temperature constant and adapts to ...
Activation energy
... always be a certain number with enough energy at any temperature, because
temperature is a measure of the average energy of the system - individual molecules can have more or less energy than the average. Increasing the
temperature increases the proportion of molecules with more energy than the activation ...
Alcohol
... glucose from the hydrolysis of starch , in the presence of yeast and
temperature of <37C to produce ethanol.
Direct hydration : using ethene or other ... of distilled crude oil . Uses a catalyst of phosphoric acid under high
temperature and pressure.
Methanol is manufactured from synthesis gas , where ...
Diffusion
... if there is a gradient : for example in thermal diffusion, if the
temperature is constant, heat will move as quickly in one direction as in the other, ... the rate of transport is governed by the thermal conductivity and the
temperature gradient.
See also
Active transport
Barotropic vorticity ...
Ethyl alcohol
... Liver cirrhosis.
Flash point 17C (62.6F)
Autoignition
temperature 425C (797F)
Explosive limits 3.5-15%
More ... otherwise stated, all data was produced under conditions of standard
temperature and pressure .
Disclaimer and references
Ethyl alcohol , ...
Experimental evolution
... time period of seven years ( 1880 - 1886 ). Dallinger slowly increased the
temperature of the incubator from an initial 60 °F up to 158 °F. The early cultures had shown clear signs of distress at a
temperature of 73 °F, and were certainly not capable of surviving at 158 °F. ...
Fermentation
... process. Mashing usually takes 1 to 2 hours, and during this time various
temperature rests activate different enzymes depending upon the type of malt being ... , which are widely used in North American beers. Finally, a mash rest
temperature of 149 to 160 F (65 to 71 C) is used to convert the starches in the malt ...
Abiogenesis
... of the phrase omne vivum e vivo to the microscopic world, and there still remain a few belated supporters of abiogenesis. Subjection to the
temperature of boiling water for, say, half an hour seemed an efficient mode of sterilization, until it was discovered that the spores of bacteria are so ...
Bacterium
... bacteria. See: endosymbiotic theory .
Microorganisms are widely distributed and are most abundant where they have food, moisture, and the right
temperature for their multiplication and growth. They can be carried by air currents from one place to another. The human body is home to billions of ...
Carolus Linnaeus
... Venus glyphs as the symbol for male and female .
Linnaeus was instrumental in the development of the Celsius (then called Centigrade )
temperature scale, inverting the scale that Anders Celsius had proposed with 0 as the boiling point of water, and 100 as the freezing point.
His picture can ...
Chromatography
... the following equation:
K is assumed to be independent of concentration, and can change if experimental conditions are changed, for example
temperature is increased or decreased. As K increases, it takes longer for solutes to separate.
For a column of fixed length and flow, the retention time ( t ...
Electrophysiology
... require low impedance measurements and no ionic contribution from the microelectrode, the chloride solution is replaced with cerralow, a low melting
temperature alloy. The tip is electroplated with soft gold and platinum black, from chloroplatinic acid. Electrodes of this type are used to measure electrical ...
Equilibrium
...
Thermodynamic equilibrium , the state of a system in which its internal processes cause no net change in its macroscopic properties (such as
temperature and pressure).
In economics , static equilibrium and general equilibrium
Nash equilibrium in game theory, an optimum strategy for all ...
Bacterium
... bacteria. See: endosymbiotic theory .
Microorganisms are widely distributed and are most abundant where they have food, moisture, and the right
temperature for their multiplication and growth. They can be carried by air currents from one place to another. The human body is home to billions of ...
Fick's law of diffusion
... law gives rise to the formula
It states that the rate of diffusion of a gas across a membrane is
Constant for a given gas at a given
temperature by an experimentally determined factor, K
Proportional to the surface area over which diffusion is taking place, A
Proportional to the ...
Herpetology
... Herpetology deals with what are called the cold-blooded tetrapods , that is, those land vertebrates which are ectothermic (deriving their body
temperature from their environment) rather than endothermic (deriving their body heat from an independent, internal source). This distinction applies to most ...
Kinetic energy
... as kinetic energy
Heat is a form of energy due to the total kinetic energy of molecules and atoms of matter. The relationship between heat,
temperature and kinetic energy of atoms and molecules is the subject of statistical mechanics . Heat is more akin to work in that it represents a change in ...
Nutrition
... possible, since undiscovered but possibly essential nutrients may be thereby removed, or toxins may be added or produced through processing and high
temperature cooking. Also processing can replace some of the mechanical/biochemical body processes which are essential for full digestion, and hence good ...
Osmosis
... the case of an ideal solution the reduction in chemical potential corresponds to:
where R is the ideal gas constant , T is the
temperature and x 2 is the solute concentration in terms of mole fraction . Most real solutions approximate ideal behavior for low solute concentrations ...
Skin
... in small amounts.
Excretion: The concentration of urea is 1/130th than that of urine. Excretion by sweating is at most a secondary function to
temperature regulation.
Heat regulation: The skin contains sebaceous glands and smooth arrector pili muscles .
Aging and disease
As skin ages, it ...
Turgor
... a dilute solution can be calculated using the formula
where
M is the molarity
R is the molar gas constant
T is absolute
temperature (i.e. measured in kelvin ).
Note the similarity of the above formula to the ideal gas law .
See also
Pfeffer cell
cell wall
...