28 research outputs found

    ANALYSIS OF MORPHOLOGICAL PARAMETERS OF DENTAL SYSTEM WITH GNATHIC FORM OF MALOCCLUSION CLASS III USING SIMPLYCEPH SOFTWARE (RUSSIA)

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    Mesiocclusion associated with asymmetric mandibular development is a gnathic form of mesiocclusion characterized by asymmetric deformation of the facial skeleton, requiring detailed examination to perform differential diagnostics. We need to analyze lateral teleroentgenogram of the head using «SimplyCeph» software, frontal teleroentgenogram of the head, multidetector computed tomography. According to scientific data, asymmetric mandibular development is much rarer in clinical practice. Etiology of this abnormality is not determined to date. It is believed that growth zones are activated in condyloid process and mandibular angle for unknown reasons. Aim - to determine the morphological condition of stomatognathic system on the stages of rehabilitation after complex treatment of patients with asymmetric growth of mandible. Materials and methods. We examined 40 patients with malocclusion class III aged from 16 to 40. The examined group included patients with malocclusion class III that corresponded to the certain degree of severity of the abnormality: Grade I - joining of the first permanent molars and canines for Class II Angle, displacement value does not exceed 1/2 of the first permanent molar cusp. Sagittal overjet is absent; the value of anterior crossbite is minimal, moderate or deep. Results. During the stages of rehabilitation of patients with malocclusion class III and asymmetry of the mandible it is necessary to conduct a comprehensive study of facial and gnathic areas of dental system, analyze the results of radiodiagnosis of sagittal, transversal and vertical skull parameters. Conclusion. Method of subcondylar vertical osteotomy helps to normalize the morphological state of dental system. Keywords: malocclusion class III, computer program «SimplyCeph», analysis of lateral teleroentgenogram

    Talking About and Preparing for Death Among Older Adults

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    Experts on end-of-life issues recommend that individuals make preparations – living will, health care proxy, last will and testament, and memorial service – for their eventual death (Bischoff, Sudore, Miao, Boscardin, & Smith, 2013). While these experts further encourage a broader process of advance care planning, which includes conversations with loved ones, many individuals are reticent to engage in such end-of-life conversations (Brinkman-Stoppelenburg, Rietjens, & Heide, 2014). The purpose of this study was to investigate relationships between older adults’ comfort having end-of-life discussions with family members, death preparation, and comfort with their end-of-life plans. Community-dwelling older adults (N = 354) participated in an interview survey about end-of-life issues. Comfort with having end-of-life discussions with family was associated with greater death preparation and comfort with end-of-life plans. Death preparation mediated the relationship between comfort with end-of-life discussions and comfort with end-of-life plans. Overall, the results are consistent with the notion that individuals who are more comfortable discussing their end-of-life plans with loved ones engage in greater death preparation and thereby feel a greater sense of contentment with their plans for death

    A modern approach to the diagnosis of orthodontic patients using a computer program “Assessment of the position of teeth and dentition relative to the lp point”

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    BACKGROUND: Currently, the most important direction in the field of orthodontics is the improvement of existing and the development of new tools for the diagnosis of dental anomalies. Although there are many ways to assess the occlusion of dentition, but this issue remains relevant in the daily practice of a dentist.&#x0D; AIM: Study is to develop a computer program for rapid diagnosis of the position of teeth and dentition without X-ray examination of patients at the initial consultation.&#x0D; MATERIAL AND METHODS: 100 patients aged 1844 with mesial occlusion were examined using anthropometric and radiological methods. The sizes of teeth and dentition were measured on plaster models. Telerentgenography of the head in a lateral projection and further analysis proposed at the Department of Orthodontics of the A.I. Evdokimov Moscow State Medical University were performed. The data was used for comparison with calculations obtained using a computer program developed by us.&#x0D; RESULTS: The computer program Diagnostics of the position of teeth and dentition relative to the coordinate point makes it possible to estimate the size of the dentition and position of the upper jaw relative to the lower one in the sagittal and transversal positions. At the same time, the accuracy of the diagnostics performed will not be inferior to similar computer programs. The simplicity of the analysis allows it to be used as an express diagnosis in planning treatment.&#x0D; CONCLUSION: This computer program simplifies the work of an orthodontist, allowing patients with various dental ano- malies to perform express diagnostics based on modern methods and facilitating the choice of treatment tactics. Reduces the burden on the patient without subjecting him to additional X-ray irradiation during the initial consultation, while the accuracy of diagnosis will not be inferior to similar computer programs. Allows you to evaluate not only the size of the dentition, but the position of the lower dentition in the sagittal and transversal positions.</jats:p

    Vortex Formation and Force Generation Mechanisms of the DelFly II in Hovering Flight

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    This paper addresses the unsteady aerodynamic mechanisms in the hovering flight of the DelFly II flapping-wing Micro Aerial Vehicle (MAV). Stereoscopic Particle Image Velocimetry (Stereo-PIV) were carried out around the wings at a high framing rate. Thrust-force was measured to investigate the relation between the vortex dynamics and the aerodynamic force generation. The results reveal that the Leading-Edge-Vortex (LEV), as well as the high flexibility of the wings, have a major effect on thrust generation. Comparison of three wing pairs with different aspect ratio (AR) is also reported, yielding significant differences in both vortical structures and thrust generation.Aerodynamics, Wind Energy & PropulsionAerospace Engineerin

    ANALYSIS OF MORPHOLOGICAL PARAMETERS OF DENTAL SYSTEM WITH GNATHIC FORM OF MALOCCLUSION CLASS III USING SIMPLYCEPH SOFTWARE (RUSSIA)

    No full text
    Mesiocclusion associated with asymmetric mandibular development is a gnathic form of mesiocclusion characterized by asymmetric deformation of the facial skeleton, requiring detailed examination to perform differential diagnostics. We need to analyze lateral teleroentgenogram of the head using «SimplyCeph» software, frontal teleroentgenogram of the head, multidetector computed tomography. According to scientific data, asymmetric mandibular development is much rarer in clinical practice. Etiology of this abnormality is not determined to date. It is believed that growth zones are activated in condyloid process and mandibular angle for unknown reasons. Aim - to determine the morphological condition of stomatognathic system on the stages of rehabilitation after complex treatment of patients with asymmetric growth of mandible. Materials and methods. We examined 40 patients with malocclusion class III aged from 16 to 40. The examined group included patients with malocclusion class III that corresponded to the certain degree of severity of the abnormality: Grade I - joining of the first permanent molars and canines for Class II Angle, displacement value does not exceed 1/2 of the first permanent molar cusp. Sagittal overjet is absent; the value of anterior crossbite is minimal, moderate or deep. Results. During the stages of rehabilitation of patients with malocclusion class III and asymmetry of the mandible it is necessary to conduct a comprehensive study of facial and gnathic areas of dental system, analyze the results of radiodiagnosis of sagittal, transversal and vertical skull parameters. Conclusion. Method of subcondylar vertical osteotomy helps to normalize the morphological state of dental system. Keywords: malocclusion class III, computer program «SimplyCeph», analysis of lateral teleroentgenogram.</jats:p

    Dual-Sorted Inverted Lists

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    Several IR tasks rely, to achieve high efficiency, on a single pervasive data structure called the inverted index. This is a mapping from the terms in a text collection to the documents where they appear, plus some supplementary data. Different orderings in the list of documents associated to a term, and different supplementary data, fit widely different IR tasks. Index designers have to choose the right order for one such task, rendering the index difficult to use for others. In this paper we introduce a general technique, based on wavelet trees, to maintain a single data structure that offers the combined functionality of two independent orderings for an inverted index, with competitive efficiency and within the space of one compressed inverted index. We show in particular that the technique allows combining an ordering by decreasing term frequency (useful for ranked document retrieval) with an ordering by increasing document identifier (useful for phrase and Boolean queries). We show that we can support not only the primitives required by the different search paradigms (e.g., in order to implement any intersection algorithm on top of our data structure), but also that the data structure offers novel ways of carrying out many operations of interest, including space-free treatment of stemming and hierarchical documents
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