نتایج جستجو برای: mandibular first premolar
تعداد نتایج: 1464090 فیلتر نتایج به سال:
Physiological and anatomical methods were used to study the representation of the visual field in the cat's dorsocaudal claustrum. In one set of experiments, the visual receptive fields of claustral neurons were plotted in multiple electrode penetrations. In another set of experiments, the termination of the corticoclaustral pathway was examined autoradiographically after the injection of [3H]p...
25 MacLennan, D., A. Tzagoloff, and K. Takayame, unpublished observations. 26 Chance, B., Nature, 169, 215 (1952). 27 Tisdale, H. D., D. C. Wharton, and D. E. Green, Arch. Biochem. Biophys., 102, 114 (1963). 28Green, D. E., D. E. Griffith9, K. A. Doeg, and D. C. Wharton, Proc. Intern. Congr. Biochem. 5th, 4, 182 (1963). 28a Klingenberg, M., in Funktionelle und Morphologische Organisation der Ze...
Jacek Bomba: Department of Child and Adolescent Psychiatry; Chair of Psychiatry; The Jagiellonian University Collegium Medicum, Kraków, Poland; Correspondence address: Jacek Bomba, Department of Child and Adolescent Psychiatry, Chair of Psychiatry, The Jagiellonian University Collegium Medicum, Kraków, Poland, 21a Kopernika St., 31–501 Kraków, Poland, e-mail: [email protected]; Based on a l...
Although saccadic eye movements can radically change the retinal image, perceptually their impact is surprisingly small. Here, we investigate possible neuronal correlates of saccadic suppression in cats freely viewing natural stimuli. By comparing changes attributable to saccadic events with passive stimulus changes, we find that during saccades: (i) evoked and induced activity is reduced in ar...
Cognition requires the dynamic modulation of effective connectivity, i.e., the modulation of the postsynaptic neuronal response to a given input. If postsynaptic neurons are rhythmically active, this might entail rhythmic gain modulation, such that inputs synchronized to phases of high gain benefit from enhanced effective connectivity. We show that visually induced gamma-band activity in awake ...
The goals of the human genome project did not include sequencing of the heterochromatic regions. We describe here an initial sequence of 1.1 Mb of the short arm of human chromosome 21 (HSA21p), estimated to be 10% of 21p. This region contains extensive euchromatic-like sequence and includes on average one transcript every 100 kb. These transcripts show multiple inter- and intrachromosomal copie...
INTRODUCTION An abfraction lesion is a type of a non-carious cervical lesion (NCCL) that represents a sharp defect on the cervical part of tooth, caused by occlusal biomechanical forces. The largest prevalence of the NCCL is found on the mandibular first premolar. The goal of the study is, by means of a numerical method - the finite element method (FEM), in an appropriate computer program, cond...
Various types of appliances have been tried by the Orthodontists for fixed orthodontic treatment. Irrespective appliance used main goal retraction anterior teeth in extraction cases is to keep vertical dimension stable so as not allow downward and backward rotation mandible. The aim this study was compare changes mandibular following treatment on subjects who undergone all first premolars. Pre ...
Dentigerous cyst is a type of odontogenic cysts and generally occurs in the ages of twenties or thirties. Dentigerous cyst always includes a tooth which cannot complete the eruption process and occurs around the crown by the fluid accumulation between the layers of enamel organ. In rare cases, dentigerous cyst occurs in the first decade of life and develops in an immature permanent tooth as a r...
Dental maturity is associated with skeletal maturity, which is advanced in girls with central precocious puberty (CPP). We investigated the performance of dental maturity as a screening method for CPP using mandibular second premolar and molar calcification stages, assessed the associated anthropometric and laboratory factors, and evaluated pubertal response predictors using the gonadotropin-re...
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