The aim of this study was to monitor, by means of quantitative light-induced fluorescence (QLF), the natural behaviour of white spot lesions detected immediately after orthodontic treatment and 2 years post-treatment. The buccal tooth surfaces of 51 subjects (>or=12 years), 24 males and 27 females, were examined with QLF for the presence of caries immediately after debonding (T0), and 6 weeks (...

The purpose of this study was to combine a standardized visually based system, the International Caries Detection and Assessment System (ICDAS), with a sensitive fluorescence-based system, quantitative light-induced fluorescence (QLF), to determine the ability to monitor caries lesion progression. This combination (QLF-I) has the potential to increase the sensitivity of the visual method withou...

We describe an approach to interpreting LFG f-structures (Kaplan & Bresnan, 1982) truth-conditionally as underspeci-fled quasi-logical forms. F-structures are either interpreted indirectly in terms of a homomorphic embedding into Quasi al., 1994a) representations or directly in terms of adapting QLF interpretation clauses to f-structure representations. We provide a reverse mapping from QLFs to...

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The early evolution of the quasar luminosity function (QLF) and black hole mass (BHMF) encodes key information on physics determining radiative accretion processes supermassive holes (BHs) in high-$z$ quasars. Although QLF shape has been constrained by recent observations, it remains challenging to develop a theoretical model that explains its redshift associated with BH growth self-consistentl...

The aim of this work was to evaluate Quantitative Light-induced Fluorescence (QLF) as an alternative to the established Logan and Boyce method for determining plaque coverage of dogs' teeth. In a series of studies in conscious and anesthetized dogs, QLF showed good intra-photographer repeatability (coefficient of variation [CV] of 7.5% for undisclosed teeth) and inter-photographer reproducibili...

Aim: The aim of this in vitro study was to compare the reproducibility and accuracy of quantitative light-induced fluorescence (QLF) in relation to other technologies and conventional methods for detecting occlusal carious lesions. Methods: Ninety-six extracted permanent molar teeth were selected. Three examiners carried out examinations using Visual examination (VI), bitewing radiographs (RX),...

1. Q-strain mice selected for high (QLF) or low (QSC) body-weight at 6 weeks of age were compared with respect to their body-weight increases, gross body compositions and food intakes. 2. DNA, RNA, protein and hydroxyproline contents were measured. 3. QLF animals were larger at all stages of development but ate more food and gained more body-weight per unit food intake with an apparently improv...

ABSTRACT Observations of massive galaxies at low redshift have revealed approximately linear scaling relations between the mass a supermassive black hole (SMBH) and properties its host galaxy. How these evolve with whether they extend to lower-mass galaxies, however, remain open questions. Recent galaxy formation simulations predict delayed, or ‘two-phase,’ growth SMBHs: slow, highly intermitte...

Objective: To compare optical, morphological, chemical, and physical aspects of the sound enamel whitespot lesions (WSL) classified as ICDAS 2. Material Methods: Seventeen human molars with one surfacepresenting WSL a surface (2 x 2 mm window) were characterized by Quantitative light-inducedfluorescence (QLF®), Optical coherence tomography (OCT), microhardness, Raman spectroscopy. The ANOVAand ...