462 research outputs found
Age estimation by teeth :a tooth can divulge anyone's age!
No full textForensic science refers to areas of endeavour that can be used in a judicial setting and accepted by the court and the general scientific community to separate truth from untruth, and Forensic Odontology is a part of this endeavour. The oral cavity is “where it all begins from!”. The human dentition can provide much information about the identification of an individual both in life and after death. The estimation of age at the time of death is an important step in the identification of human remains. If this age can be accurately estimated, it will significantly narrow the field of possible identities that will have to be compared to the remains in order to establish a positive identification. To achieve this there are many methods available to the forensic dentist, anthropologist and pathologist. Some of the more accurate methods of age estimation in the juvenile and younger adult, have been based on the assessment of the degree of dental development as it relates to chronological age. The aim of this book is to explore the various methods of estimating chronological age from the degree of dental development till the time of death
An Insight into Pyogenic Granuloma with Ossification: Exploring a Unique Association
No full textPyogenic Granulomas (PG) are reactive hyperplastic lesions that are formed in relation to some chronic irritation, physical trauma
or hormonal factors. The PG may present in various clinical and histological forms. These often present as a smooth lobulated
exophytic lesions and at times may show a marked resemblance to Peripheral Ossifying Fibroma (POF). However, the characteristic
histologic presentation helps in differentiating both the lesions. Microscopically, presence of ossification in pyogenic granuloma
is not common and could possibly indicate an altered response of the connective tissue stroma. The present case report shows
occurrence of pyogenic granuloma in a 12-year-old female which on histological examination not only exhibited proliferating blood
vessels, endothelial cells and inflammatory cells which are typical features of pyogenic granuloma but also exhibited areas of
ossifications which are not frequently encountered in PG. It is important to explore the underlying aetiological factors that could
lead to formation of such ossifications. It has been suggested that pyogenic granuloma and peripheral ossifying fibroma could
represent part of same spectrum of focal reactive lesions. However, it is still considered that these two lesions are separate clinical
entities and the histologic presentations are different and unique to both of them
Ideas for rent: an overview of markets for technology
No full textThis article surveys some of the recent literature on technology markets, and summarizes its main issues and insights. We structure our analysis in three parts: the supply and demand of technology; the factors that condition the formation and growth of technology markets; industry structure and dynamic issues. In addition, we summarize some of the studies that have tried to document the size and growth of these markets. We find that the literature has focused mainly on the supply of technology, but several other aspects of these markets remain under-studied, including the demand for external technology, the role of uncertainty in technology markets, and the dynamic interaction between industry structure and the market for technology. Understanding these will illuminate whether markets for technology will continue to grow or remained confined to pockets of the economy. Copyright 2010 The Author 2010. Published by Oxford University Press on behalf of Associazione ICC. All rights reserved., Oxford University Press.
Primary Oral Tuberculosis Imitating Malignancy- A Rare Case Report
No full textTuberculosis is caused by Mycobacterium tuberculosis and is an ancient disease causing major morbidity and mortality worldwide. Though tuberculosis affects lungs in the majority of the cases but can affect other organs including the oral cavity as a primary site. Oral lesions can be seen in both primary and secondary forms of tuberculosis. The present article reports a case of a primary oral tubercular ulcer of buccal mucosa in a 36-year-old female, which based on clinical features was provisionally diagnosed as squamous cell carcinoma. The diagnosis of oral tuberculosis was confirmed by histopathology, blood and immunological investigations. The patient then was kept on Antitubercular Therapy (ATT) and the lesion showed healing markedly. Thus, oral tubercular lesions are rare and are difficult to diagnose, so every chronic, abnormal looking lesion should be examined cautiously for early diagnosis and prompt treatment
Metrics for analytics and visualization of big data with applications to activity recognition
No full textActivity recognition systems detect the hidden actions of an agent from sensor measurements made on the agents' actions and the environmental conditions. For such systems, metrics are important for both performance evaluation and visualization purposes. In this thesis, such metrics are developed and illustrated. For human activity recognition datasets, a reporting structure is described to visualize the metrics in a systematic manner. The other contribution of this thesis is to describe a visualization tool for estimating the orientation (attitude) of a rigid body from streaming motion sensor (accelerometer and gyroscope) data. A feedback particle filter (FPF) is implemented algorithmically to solve the estimation problem.Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2018-05-01The student, Rohan Arora, accepted the attached license on 2016-04-25 at 10:47.The student, Rohan Arora, submitted this Thesis for approval on 2016-04-25 at 10:48.This Thesis was approved for publication on 2016-04-27 at 15:05.DSpace SAF Submission Ingestion Package generated from Vireo submission #9459 on 2016-07-07 at 14:17:57Made available in DSpace on 2016-07-07T21:18:02Z (GMT). No. of bitstreams: 2
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Diabetes and fungal infection- a didactic relationship
No full textOral fungal infections are frequently encountered in clinical practice, and with the advent of the Coronavirus disease 2019 (COVID-19) pandemic, their incidence has quite increased. Increased emergence of oral candidal and non candidal infections is evident in patients with uncontrolled diabetes, patients on steroids or antibiotic therapies, and immunocompromised and immunosuppressed individuals. Also, habits of smoking and alcohol consumption, intake of carbohydrate-rich food, and salivary dysfunction have many times influenced the colonisation of fungal infections in the oral cavity. Aspergillosis once considered exotic is now more prevalent than before and presents itself in two forms: non invasive or invasive form, which has led to the rapid dissemination of the disease. Hence, a timely diagnosis of such lesions is important to prevent their invasion into other parts of the body. This article discusses a rare case report of Aspergillosis occurring in the oral cavity at the site of the extraction socket in a 50-year-old woman, who is a known diabetic without any history of COVID-19 infection. Aspergillosis unlike other fungal infections of the oral cavity has been reported more in immunocompetent individuals. Here, we report a unique case limited to the oral cavity in an immunocompromised patient
A Review on Dental Age Estimation in Children and Adolescents
No full textChildren are seen as beings who exist from birth through puberty, while teenagers are regarded as existing from puberty until around the age of 20 years. For a number of legal processes, including child labor, employment, the age of majority, rape, adoption, marriage eligibility, and situations where the birth certificate is unavailable, age estimation in children and adolescents is crucial. Despite the wide range of methods available, dental age estimation techniques that take into account tooth maturation are thought to be the most reliable predictors of chronological age in subadults. This is because genetic factors predominate and environmental factors, particularly between birth and age ten, tend to have little impact on tooth maturation. The eruption of teeth holds greater significance in the deciduous dentition, where genetic factors predominantly govern the process, compared to the permanent dentition. Conversely, tooth calcification serves as a viable indicator for estimating dental age in both primary and permanent dentitions. Current dental age estimation methods are based on age-related changes in teeth, such as tooth growth and development, changes that occur after teeth form, and biochemical changes. Therefore, in this review article, we will explore the several methodologies used for dental age assessment in children and adolescents
Glandular Odontogenic Cyst- An Unusual Presentation in the Maxilla
No full textThe Glandular Odontogenic Cyst (GOC) is thought to be a developmental cyst arising from the remnants of dental lamina. This cyst has an unpredictable and a potentially aggressive behaviour, with a worldwide prevalence of 0.17%. It occurs in patients aged 40-70 years, occurring exclusively in the anterior mandibular jaw. A 42-year-old male patient reported to the Department of Oral Medicine and Radiology with a chief complaint of pain in the upper right back tooth region since five days. Two radiolucencies were observed in the maxillary anterior and posterior regions, as an incidental finding in the radiographic examination. Cone Beam Computed Tomography (CBCT) revealed two separate unilocular homogeneously hypodense regions with radiopaque sclerotic borders in the maxillary arch, located in the anterior and posterior regions of the maxilla, crossing the midline, which is quite rare. A final diagnosis of GOC was made based on the histopathological examination of the specimen after complete enucleation. Diagnosis of this cyst is challenging clinically and radiographically, as it can be confused with other cysts or malignancies of the jaws. Hence, diagnosis of GOC can only be based on characteristic histopathological findings
Essays on socially and environmentally responsible operations
No full textThe three essays in this dissertation focus on social and environmental dimensions of managing the operations of organizations. Specifically, this dissertation: (i) employs analytical (e.g., econometric, game-theoretic and optimization models) and empirical (e.g., event study) techniques; and (ii) encompasses the following three areas: healthcare operations, sustainability, and nonprofit operations. While the majority of the healthcare operations management literature focuses on the demand side of the organ transplantation, in Essay 1, I focus on the supply-side to understand the socioeconomic costs of sub-optimal quantity and/or quality of organs recovered for transplantation. I develop an analytical model to study the effects of operational decisions of the two key supply-side entities, namely, the organ procurement organization (OPO) and hospital, on their respective payoffs and on societal outcomes, i.e., quality-adjusted-life-year increments. Through my analysis, I identify current misalignments in the objectives of the OPO, the hospital, and the social planner. Further, I recommend an administratively feasible and Pareto-improving contract that the social planner can use to achieve socially-optimal performance. Next, over the last two decades, firms have been appointing corporate sustainability executives (CSEs) to be part of their top management teams (TMTs). A CSE is the primary executive in the TMT with responsibility over the firm’s corporate sustainability strategy. In Essay 2, I add to the understanding of the empirical link between CSE appointments and financial performance by using a stock price-based performance measure. My findings suggests that although, on average, the shareholder value effect of CSE appointments is not significantly different from zero, the stock market reacts more positively under certain firm and industry-specific conditions. Finally, non-profit organizations (NPOs) that support and serve distressed individuals are often the last resort for those who are marginalized in society. To reduce mismatches between client needs and services provided, NPOs can invest in advisory effort during the intake process. While indirectly beneficial for generating social impact, advisory efforts consume resources that NPOs could have spent in delivering impact-generating services. In Essay 3, I develop an analytical model to study how an NPO should invest its limited resources between the advisory and service delivery activities. The analysis sheds light on when to invest more in an activity, and when to specialize on a single service type.Ph.D
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