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This page provides a simple browsing interface for finding entities described by a property and a named value. Other available search interfaces include the page property search, and the ask query builder.

List of results

• Thenoyltrifluoroacetone  + ('''Thenoyltrifluoroacetone''' TTFA is a noncompetitive inhibitor of CII binding on the quinone-binding (SDHC/SDHD).)
• Thioredoxin reductase  + ('''Thioredoxin reductase''' (TrxR) is a family of enzymes able to reduce thioredoxin in mammals.)
• Time resolution  + ('''Time resolution''' in respirometric measurements is influenced by three parameters: the [[response time of the POS]], the data sampling interval and the number of points used for flux calculation.)
• Traceability  + ('''Traceability''' is the property of the … '''Traceability''' is the property of the result of a measurement or the value of a standard whereby it can be related to stated references, usually national or international standards, through an unbroken chain of comparisons all having stated uncertainties [SOURCE: VIM:1993, definition 6.10].nties [SOURCE: VIM:1993, definition 6.10].)
• Trueness of measurement  + ('''Trueness of measurement''' is the close … '''Trueness of measurement''' is the closeness of agreement between the average value obtained from a large series of results of measurements and a true value (adapted from ISO 3534-1:1993, definition 3.12). The degree of trueness is usually expressed numerically by the statistical measure bias that is inversely related to trueness and is the difference between the expectation of the results of measurement and a true value of the [[measurand]].[[measurand]].)
• Trueness  + ('''Trueness''' is understood as the lack of [[bias]] and the instrument calibration procedures are the key factor on establishing and correcting it.)
• USB-RS232 Serial Adapter  + ('''USB-RS232 Serial Adapter''', for connec … '''USB-RS232 Serial Adapter''', for connecting the [[RS232-Cable]] attached to the [[O2k-Main Unit]] (Series A-D) to the USB port of the PC or laptop. This is not required for O2k-Series E, nor when using a PC or laptop with a serial RS232 port. '''Discontinued'''th a serial RS232 port. '''Discontinued''')
• Uncertainty of measurement  + ('''Uncertainty of measurement''' is a para … '''Uncertainty of measurement''' is a parameter, associated with the result of a [[measurement]], that characterizes the dispersion of the values that could reasonably be attributed to the [[measurand]]. The parameter can be, for example, a standard deviation (or a given multiple of it), or the half-width of an interval having a stated level of confidence. The components of uncertainty are evaluated experimentally from statistical distributions (Type A) or evaluated from assumed probability distributions based on experience or other information (Type B). All components are expressed as standard uncertainties that are combined into one final expression.at are combined into one final expression.)
• Uncoupling protein 1  + ('''Uncoupling protein 1''' (UCP1) is also … '''Uncoupling protein 1''' (UCP1) is also called thermogenin and is predominantly found in brown adipose tissue (BAT). UCP1 belongs to the gene family of [[uncoupling proteins]]. It is vital for the maintenance of body temperature, especially for small mammals. As the essential component of non-shivering thermogenesis, it possesses the ability to build and open a pore in the inner mitochondrial membrane through which protons may flow along their electrochemical gradient, generated by respiration, bypassing the ATP-producing re-entry site at the F1F0-ATP synthase. Thereby the energy stored in the electrochemical gradient is dissipated as heat.rochemical gradient is dissipated as heat.)
• Uncoupling protein 2  + ('''Uncoupling protein 2''' (UCP2) belongs to the gene family of [[uncoupling proteins]]. Whereas [[Uncoupling protein 1 |UCP1]] acts as an [[uncoupler]], this may not be the case for UCP2.)

• Uncoupling proteins  + ('''Uncoupling proteins''' (UCPs) are mitoc … '''Uncoupling proteins''' (UCPs) are mitochondrial anion carrier proteins that can be found in the inner mitochondrial membranes of animals and plants. [[Uncoupling protein 1 |UCP1]] acts as an [[uncoupler]] by dissipating the electrochemical proton gradient ([[mitochondrial membrane potential]]), generated by the [[electron transfer pathway]] by pumping protons from the mitochondrial matrix to the mitochondrial intermembrane space. to the mitochondrial intermembrane space.)
• Units in figures and tables  + ('''Units in figures and tables''' are spec … '''Units in figures and tables''' are specified together with the numerical values. The ''value'' of a quantity ''Q'' is the product of a [[number]] ''N'' and a [[unit]] ''u''_''Q''. Abstract units ''u''_''Q'' (such as dm³=L, kg, J) are linked to measured quantities (such as volume, mass, energy): </br> Eq.(1) ''Q''_''u'' = ''N''·''u''_''Q''</br></br>The multiplication in Eq.(1) can be handled like any mathematical equation and re-arranged to the form which indicates the meaning (left) of a number (right): </br> Eq.(2a) ''Q''_''u''/''u''_''Q'' = ''N''</br> Eq.(2b) ''N''_''X''/x = ''N''</br></br>When numbers are given on the axes of figures and in tables, the corresponding labels should be indicated according to Eq.(2), where Eq.(2a) applies to measured quantities, whereas Eq.(2b) relates to the countable quantity, i.e. [[count]] with unit [x]. For example, the axis label for volume-specific oxygen flux may be written as ''J''_''V'',O₂ / [pmol/(s·mL)] and cell-count specific oxygen flow as ''I''_O₂ / [amol/(s·x)].s ''J''_''V'',O₂ / [pmol/(s·mL)] and cell-count specific oxygen flow as ''I''_O₂ / [amol/(s·x)].)
• Velocity  + ('''Velocity''', '''''v''''' [m·s<sup> … '''Velocity''', '''''v''''' [m·s^-1], is the [[speed]] in a defined spatial direction, and as such velocity is a [[vector]]. Velocity is the [[advancement]] in distance per unit time,</br> '''''v''''' ≡ d'''''z''''' ∙ d''t''^-1 [m·s^-1] d'''''z''''' ∙ d''t''^-1 [m·s^-1])
• Viable cells  + ('''Viable cells''' vce are characterized by an intact plasma membrane barrier function. The total cell count (''N''_ce) is the sum of viable cells (''N''_vce) and dead cells (''N''_dce).)
• Viton  + ('''Viton'''® is a fluoroelastomer with excellent resistance to aggressive fuels and chemicals. Viton is resistant against oxygen diffusion which makes it an ideal material for high-resolution respirometry (Viton O-rings).)
• Volume  + ('''Volume''' ''V'' is a derived quantity b … '''Volume''' ''V'' is a derived quantity based on the SI base quantity [[length]] [m] and is expressed in terms of [[SI base units]] in the derived unit cubic meter [m³]. The liter [L = dm³] is a conventional unit of volume for concentration and is used for most solution chemical kinetics. The volume ''V'' contained in a system (experimental chamber) is separated from the environment by the system boundaries; this is called the volume of the system, and described in practical language as big/small (derived from [[length]], [[height]]) or voluminous. Systems are defined at constant volume or constant [[pressure]]. For a pure sample S, the volume ''V''_S of the pure sample equals the volume ''V'' of the system, ''V''_S = ''V''. For [[sample]] s in a mixture, the ratio ''V''_s·''V''^-1 is the nondimensional [[volume fraction]] ''Φ''_s of sample s. Quantities divided by volume are [[concentration]]s of sample s in a mixture, such as [[count]] concentration ''C_X'' = ''N_X''·''V''^-1 [x·L^-1], and amount of substance concentration ''C''_B = ''n''_B·''V''^-1 [mol·L^-1]. Mass concentration is [[density]] ''ρ''_s = ''m''_s·''V''^-1 [kg·L^-1]. In closed compressible systems (with a gas phase), the concentration of the gas increases, when pressure-volume [[work]] is performed on the system.is performed on the system.)
• Wavelength averaging  + ('''Wavelength averaging''' is the averagin … '''Wavelength averaging''' is the averaging of several adjacent data points across the recorded spectrum (spectral [[smoothing]]), to improve the [[signal-to-noise ratio]]. For example, if the instrument recorded 5 data points per nm, the average of the 5 points can be taken for each successive nm across the range of the spectrum to give a 5-point smoothing. This method clearly reduces the wavelength [[resolution]].[[resolution]].)
• Work  + ('''Work''' [J] is a specific form of [[energy]] … '''Work''' [J] is a specific form of [[energy]] in the First Law of thermodynamics, and a specific form of [[exergy]] in the Second Law of thermodynamics, performed by a closed or open system on its surroundings (the environment). This is the definition of ''external'' work, which is zero in [[isolated system]]s. The term exergy includes external and internal work. Mechanical work is force [N] times path length [m]. The internal-energy change of a closed system, d''U'', is due to external exchange (e) of work and heat, and external total work (et, including pressure-volume work) is the internal-energy change minus heat,</br> d_et''W'' = d''U'' - d_e''Q''b>et</sub>''W'' = d''U'' - d_e''Q'')
• Zero calibration  + ('''Zero calibration''' is, together with [[air calibration]] … '''Zero calibration''' is, together with [[air calibration]], one of the two steps of the POS calibration. It is performed in the [[closed chamber]] after all the oxygen has been depleted by the addition of [[dithionite]] or by respiration of [[Isolated mitochondria |imt]] or [[Living cells |cells]]. Any incubation medium can be used for zero calibration with dithionite or sample. Unlike air calibration, it is not necessary to perform a zero calibration on each experimental day. After performing a zero calibration, it is recommended not running other experiments on the same day. Even after standard cleaning of the O2k-chambers, there might be residual amounts of reduced dithionite in the chamber, affecting the oxygen flux in subsequent experiments performed on the same day.ent experiments performed on the same day.)
• DatLab 2  + ('''[[DatLab]] 2''' (DL2) is a MS-DOS programe. DL2 is still used for analysis of [[oxygen kinetics]], after exporting files recorded in recent DatLab versions. A user-friendly O2-kinetics module is in preparation (DL8).)