What's the difference between perceptible and phosphorescence?

Perceptible


Definition:

  • (a.) Capable of being perceived; cognizable; discernible; perceivable.

Example Sentences:

  • (1) However, the relationships between sociometric status and social perception varied as a function of task.
  • (2) Variables included an ego-delay measure obtained from temporal estimations, perceptions of temporal dominance and relatedness obtained from Cottle's Circles Test, Ss' ages, and a measure of long-term posthospital adjustment.
  • (3) With respect to family environment, a history of sexual abuse was associated with perceptions that families of origin had less cohesion, more conflict, less emphasis on moral-religious matters, less emphasis on achievement, and less of an orientation towards intellectual, cultural, and recreational pursuits.
  • (4) This study examined the effects of cultural factors on perception of 15 boys and 21 girls in Nigeria.
  • (5) Subtle differences between Chicago urban and Grand Forks rural climates are reflected in arthritic subjects' degree of pain and their perception of pain-related stress.
  • (6) Instead, he handed over the opening to reporter Molly Line, who said, “Racial profiling is in the eye of the beholder,” before citing differing perceptions of the phenomenon between white and black people, which is like reading the headline “Rapist, Victim Differ on Consent”.
  • (7) The current study explored the temporal course of the perception of vowel duration.
  • (8) Subjects with high ocular-dominance scores (right- or left-dominant subjects) showed for the green stimulus asymmetric behavior, while subjects with low ocular-dominance scores showed a tendency toward symmetry in perception.
  • (9) For each theory, a constraint on preformance is proposed based on interference between the "analytic" and "synthetic" pitch perception modes.
  • (10) While research into the cause of altered pain perception in psychotic patients is continuing, clinicians should maintain a high index of suspicion of serious medical illness when evaluating such patients.
  • (11) The image of any radiology facility is a direct result of perceptions gathered by the consumer of their services.
  • (12) Three experiments in person perception were conducted to investigate the conditions under which naive observers label an actor as aggressive and to ascertain how this label affects the reactions of the observers to the actor.
  • (13) The purpose of the present study was to investigate the effects of listening experience on the perception of intraphonemic differences in the absence of specific training with the synthetic speech sounds being tested.
  • (14) Auditory sensory perception was operationalized as number of tones heard on audiometric examination.
  • (15) It has been shown that adequate brain provision of this process is based in adults both on the functional topographic differentiation and specialization of separate perceptive operations and on the possibility of controlling generalized and local activating influences according to task requirements.
  • (16) Quantitative analysis of pain demonstrated an 87% improvement in their perception of pain in the remaining 19 patients, with an average follow-up of 8.5 years.
  • (17) The reverberation times were 2.1 and 1.6 s. In quiet conditions at normal speech level (60 dBA), the perception was better without earmuffs than with them.
  • (18) The author differentiates between two modes of perception, one is the "expressive" mode, stabilizing and aiming at constancy, the other is the "impressive" mode, penetrating the self and aiming at identification with the percept.
  • (19) Lack of transparency about the nature of the relationship between police and media also led to speculation and perceptions, whatever the facts, that caused "serious harm".
  • (20) The tonic influences were expressed in an increase in the amplitude parameters of the responses of the visual cortex in conditions of the formation in the posterolateral nucleus of the thalamus of a focus of heightened excitability (anode polarization), and their perceptible diminution with potassium depression in this nucleus.

Phosphorescence


Definition:

  • (n.) The quality or state of being phosphorescent; or the act of phosphorescing.
  • (n.) A phosphoric light.

Example Sentences:

  • (1) Fluorescence and phosphorescence spectra and lifetime studies revealed that at least 75% of the porphyrins were bound to metal, probably Zn, while the rest was free.
  • (2) The inactivation of equine liver alcohol dehydrogenase by guanidine hydrochloride and urea has been studied by monitoring the intrinsic tryptophan fluorescence and phosphorescence emission.
  • (3) The constancy of the lifetime-normalized phosphorescence yield with apoazurin and with Trp-314 in alcohol dehydrogenase establishes that the intersystem crossing quantum yield is practically unaffected across the temperature range.
  • (4) The quantum yields for singlet oxygen formation via energy transfer from triplet alpha-terthienyl have been obtained from time-resolved measurements of its IR phosphorescence: these yields are in the 0.6-0.8 range in non-polar and polar (hydroxylic and non-hydroxylic) solvents.
  • (5) When pouring liquid nitrogen over the spots, a very intense bluish-white fluorescence followed by a long-lasting greenish phosphorescence is observed.
  • (6) Triphenylene was also extemporaneously determined by its phosphorescence spectrum at low temperature.
  • (7) 1O2 phosphorescence emission was enhanced in deuterated buffer and upon saturation of the sample with oxygen and could be quenched by the addition of sodium azide to the external medium.
  • (8) High-quality phosphorescence decay curves with a 10-microseconds time resolution were obtained at concentrations of the eosin probe down to 20 nM and in aqueous media at temperatures of 4-38 degrees C. A strong temperature dependence in the rotational behavior was observed for the band 3 anion transport protein, but the lectin receptors of the Friend erythroleukemia cells were found to be immobile on the time scale of 1-4000 microseconds at either 4 degrees C or 37 degrees C. The technique is applicable to other triplet probes and membrane components of living cells under conditions that do not destroy viability.
  • (9) Quantum yields, fluorescence decay times and phosphorescence of Yt base have been also determined.
  • (10) Samples of Precambrian rocks (1.7-2.6 billion years, U.S.S.R.) contain metalloporphyrins and linear tetrapyrrole pigment similar to phycobilin 655 from modern blue-green algae Microystis (according to data of phosphorescence spectroscopy).
  • (11) Barring major enzyme conformational changes in the vicinity of unmodified tryptophan residues when Trp-62 or Trp-108 are selectively modified, we find that Trp-108 dominates both the phosphorescence and the ODMR signals in native lysozyme.
  • (12) The second-order rate constants, k delta, for quenching of molecular singlet oxygen O2 (1 delta g) by nonsteroidal anti-inflammatory imidazole drugs have been determined using time-resolved phosphorescence detection of singlet oxygen.
  • (13) Images of the phosphorescence were collected using a series of different delay times after illumination with a light flash (less than 5-microseconds width at half-height), and the phosphorescence decay constants (lifetimes) and oxygen pressure were calculated for each pixel of the image arrays.
  • (14) Upon irradiation, a solution of porphyrins containing more than 0.1% HSA shows phosphorescence with a lifetime longer than 1 ms. With an increase in irradiation time, phosphorescence intensities and lifetimes of porphyrins increase, depending upon their concentrations and triplet lifetimes, and approach saturated values close to those under deaerated conditions.
  • (15) Changes in conformation of glutamate dehydrogenase from beef liver as a result of interactions with allosteric effectors have been demonstrated from the phosphorescence emission of tryptophan.
  • (16) In addition, at 77 K and 275 nm 4-fluorotryptophan displayed strong fluorescence and phosphorescence, with emission quantum yields comparable with those of tryptophan at 77 K and 275 nm.
  • (17) The phosphorescence spectra and phosphorescence excitation spectra as well as the ratio of fluorescence and phosphorescence yields and the triplet state lifetume have been measured.
  • (18) Its phosphorescence decay fits well to two exponential components of 1.02 and 0.12 s, with no contribution from long-lived Trp residues.
  • (19) The mammalian heterogeneous ribonucleoprotein (hnRNP) A1 and its constituent N-terminal domain, termed UP1, have been studied by steady-state and dynamic fluorimetry, as well as phosphorescence and optically detected magnetic resonance (ODMR) spectroscopy at cryogenic temperatures.
  • (20) The phosphorescence 0,0 band as well as the zero-field splittings of Trp-134 undergoes significant changes upon binding of oleic acid to BSA.