# threshold

(redirected from SDT)
Also found in: Dictionary, Thesaurus, Medical, Legal, Financial, Acronyms, Wikipedia.

## threshold

1. Psychol the strength at which a stimulus is just perceived
2.
a. the minimum intensity or value of a signal, etc., that will produce a response or specified effect
b. (as modifier): a threshold current

## Threshold

A strip fastened to the floor beneath a door, to cover the joint where two types of floor materials meet or to provide weather protection.

## What does it mean when you dream about a threshold?

A threshold is a symbol for passing from one state or condition to the next, indicating a transition in some aspect of the dreamer’s life.

## threshold

[′thresh‚hōld]
(building construction)
A piece of stone, wood, or metal that lies under an outside door.
(electronics)
In a modulation system, the smallest value of carrier-to-noise ratio at the input to the demodulator for all values above which a small percentage change in the input carrier-to-noise ratio produces a substantially equal or smaller percentage change in the output signal-to-noise ratio.
(engineering)
The least value of a current, voltage, or other quantity that produces the minimum detectable response in an instrument or system.
(geology)
(mathematics)
A logic operator such that, if P, Q, R, S, … are statements, then the threshold will be true if at least N statements are true, false otherwise.
(physics)
The minimum level of some input quantity needed for some process to take place, such as a threshold energy for a reaction, or the minimum level of pumping at which a laser can go into self-excited oscillation.
(physiology)
The minimum level of a stimulus that will evoke a response in an irritable tissue.

## threshold

1. A strip fastened to the floor beneath a door, usually required to cover the joint where two types of floor material meet; may provide weather protection at exterior doors. Also See doorsill.
2. In illumination engineering, the value of physical stimulus which permits an object to be seen a specified percentage of the time with specified accuracy.

## threshold

The beginning of that portion of the runway usable for landing (ICAO). On instrument runways, it is indicated by long stripes followed by the runway designation marking. The number of stripes is dependent on the width of the runway.

## threshold

(1) The point at which a signal (voltage, current, etc.) is perceived as valid.

(2) (Threshold) The code name for Windows 10.
References in periodicals archive ?
In a longitudinal study, ERG was repeatedly recorded at different times in each SDT rat from the diabetes onset until the twenty-fifth week, before the development of severe lens opacity which might have prevented ERG evaluation.
However, SLA in SDT fatty rats was decreased during the dark phase, with a tendency for higher SLA compared with control SD rats during the light phase.
The rapidly expanding body of literature on SDT has shown that the development of sonosensitizers is one of the most essential factors in this treatment.
Specifically, it confirmed the tenability and efficacy of the SDT in that providing students with support for their innate needs (such as perceived autonomy) can significantly impact students' motivational responses (Bryan and Solmon, 2007; Deci and Ryan, 1985; Ntoumanis, 2001; Sun and Chen, 2010).
The regions included Baicheng of Jilin Province (the population code was named as JLB), Baoding of Hebei Province (HEB), Lanzhou of Gansu Province (GSL), Taigu of Shanxi Province (SXT), Zibo of Shangdong Province (SDZ), Taian of Shangdong Province (SDT), Xianyang of Shaaxi Province (SAX), Nanyang of Henan Province (HNN), Chuzhou of Anhui Province (AHC), Wuhan of Hubei Province (HBW), Beibei of Chongqing Province (CQB), and Guiyang of Guizhou Province (GZG).
In the next section, we describe SDT, which constitutes the basis for intervention programs, and the study that will be presented below.
El diagnostico de SDT debe ser realizado con la obtencion de la historia medica detallada, buscandose caracterizar los sintomas de origen neurologico o vascular, teniendo en cuenta todos los aspectos etiologicos, anatomicos y posibles diagnosticos diferenciales, especialmente trastornos de la columna cervical como hernia de disco y espondilosis, y los sindromes de compresion de los nervios perifericos, recordando la posibilidad de compresion en multiples niveles como en nuestro caso de SDT y STC (1,2,4,6).
the richer countries, and made a strong case that the norm of SDT for
In most cases, the SDT far exceeded PDT, suggesting the need for comprehensive breast care centres to fasttrack assessment of patients with breast cancer-related symptoms.
Education is one of the domains where the SDT has been applied (Deci et al., 1991; Filak & Sheldon, 2003; Ryan & Niemiec, 2009) because motivation is considered as a central factor in the performance and engagement of students.
Figures 3 to 5 present relative performance of alternative refrigerants compared to that of R-410A as a function of SST for given SDT at 20[degrees]F (11.1[degrees]C) superheat and 15[degrees]F (8.3[degrees]C) subcooling.
The High Court upheld the conclusion of the Solicitors' Disciplinary Tribunal (SDT) over Kean's ham-fisted handling of a client's case.

Full browser ?
Site: Follow: Share:
Open / Close