A 60-year-old male with gradual loss of tooth surface

This article has no abstract. The first 100 words appear below: A 60-year-old male came with complaints of a gradual loss of tooth surface structure on the upper left anterior tooth with no complaints of pain and hypersensitivity. He was very much concerned about the appearance of the tooth and developing any pathology and therefore wanted to get his tooth treated. Medical history was not contributory, proper history about foods and diet habits, occupational, para-functional, and other abnormal habits were recorded but nothing significant was notified. The only significant was the horizontal brushing technique

A 34-year-old male with pain and mobility of upper left lateral incisor tooth

This article has no abstract. The first 100 words appear below: A 34-year-old male attended with mild pain during mastication and slight mobility on the upper left lateral incisor tooth for 2 months. He gave the history of trauma on the offending tooth 3 years ago and for this he visited to a local dentist 2 weeks ago but did not get any relief after treatment. On clinical examination, the tooth was non vital, tender to percussion with 2 degree mobility, not associated with any swelling and discharge. Pre-operative radiograph revealed obliteration of pulp chamber, area of rarefaction associated near the apex of upper left lateral incisor tooth, cervical radiolucency indicating the loss of periodontal structures and about 5 mm separated fragment of instrument in the coronal third of the root canal

A 60-year-old female with pain on mastication for one month

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Ab-initio insights into the mechanical, phonon, bonding, electronic, optical and thermal properties of hexagonal W2N3 for potential applications

We investigated the structural, elastic, electronic, vibrational, optical, thermodynamic and a number of thermophysical properties of W2N3 in this study using DFT based formalisms. The mechanical and dynamical stabilities have been confirmed. The Pugh and Poisson ratios are located quite close to the brittle to ductile borderline. The electronic band structure and energy density of states show metallic behavior. The Fermi surface features are investigated. The analysis of charge density distribution map clearly shows that W atoms have comparatively high electron density around than the N atoms. Presence of covalent bondings are anticipated. High melting temperature and high phonon thermal conductivity at room temperature of W2N3 imply that the compound has potential to be used as a heat sink system. The optical characteristics demonstrate anisotropy for W2N3. The compound can be used in optoelectronic device applications due to its high absorption coefficient and low reflectivity in the visible to ultraviolet spectrum. Furthermore, the quasiharmonic Debye model is used to examine temperature and pressure dependent thermal characteristics for the first time.Comment: Submitted to Journal of Alloys and Compound

Total cholesterol and triglycerides status in autistic spectrum disorder children: a case-control study on Bangladeshi children

Background: Autism spectrum disorder (ASD) is a neurodevelopmental condition marked by challenges in social interaction, communication, and repetitive behaviors. The association between lipid profiles, particularly total cholesterol and triglycerides, and ASD in children is a growing focus in pediatric health research. This study aimed to assess the total cholesterol and triglycerides status in autistic spectrum disorder children. Methods: This cross-sectional study was conducted in the department of physiology, Bangabandhu Sheikh Mujib Medical University, Dhaka from March 2014 to January 2015 with 100 male children, half in a healthy control group (group A) and the other half diagnosed with autism spectrum disorder (group B). Results: In this study, no significant correlation was found between the groups for age (p=0.94) or BMI (p=0.29). The mean (±SE) serum total cholesterol levels were 146±1.70 mg/dl in group A and 145.00±3.77 mg/dl in group B, showing no significant difference between the two groups (p=0.885). But, the mean (±SE) serum triglyceride levels were 86.14±3.28 mg/dl in group A and 107.74±7.91 mg/dl in group B, with significantly higher levels compared to group A (p<0.01). Conclusions: Although there is no significant difference in serum total cholesterol levels between healthy children and those with autistic spectrum disorder, there is a significant difference in serum triglyceride levels. Therefore, further studies are needed to provide a clearer understanding of the lipid profile comparison

Thermal and structural analysis of RCC double-curvature arch dam

This paper focuses on the development, verification and application of a three-dimensional finite element code for coupled thermal and structural analysis of roller compacted concrete arch dams. The Karun III Arch dam located on Karun River, Iran, which was originally designed as a conventional concrete arch dam, has been taken for the purpose of verification of the finite element code. In this study, RCC technology has been ascertained as an alternative method to reduce the cost of the project and make it competitive. A numerical procedure to simulate the construction process of RCC arch dams is presented. It takes into account the more relevant features of the behavior of concrete such as hydration, ageing and creep. A viscoelastic model, including ageing effects and thermal dependent properties is adopted for the concrete. The different isothermal temperature influence on creep and elastic modulus is taken into account by the maturity concept. Crack index is used to assess the occurrence of crack and evaluate the level of safety of the dam. This study demonstrates that, high tensile stress concentration has been observed at the lower part and the abutment boundaries of the dam

Effect of temperature and creep on roller compacted concrete dam during the construction stages

Development of temperature rise in massive concrete structure such as a roller compacted concrete dam is attributed to hydration of concrete and environmental boundary conditions. These thermal changes in the material affect the elastic, creep properties of the material, and in turn, the stress fields within the structure. Therefore, the effects of temperature on the properties of RCC materials (elastic, creep) has to be taken into account in order to determine the risk of the thermally induced cracking in these dams. In the present work an attempt has been made to consider the effect of temperature on the elastic and creep properties. A viscoelastic model, including ageing effects and thermal dependent properties is adopted for the concrete. Safety against a crack occurrence over the time is determined using crack criterion factor. The result has shown that, the increase of the elastic modulus has been accelerated duo to the high temperature of hydration at the initial stage, and consequently stresses are increased. The maximum principle stresses increased by 40% in the initial stage

Assessment Re-Think: Income-Generating and Industry-Based Assessments

Assessments are the fundamental media between students and educators. This paper aims to evaluate how to create assessments, how students learn from them, and how to link them to the industry and entrepreneurism. The implementation plan postulates how students can generate income from income-generation assessments or business innovation assessments. In this paper, we discuss the involvement of modern industry in assessment. We examine evidence from approximately 100 assessments detailed in 32 subject outlines. We employ a descriptive, pragmatic research methodology to consider whether they can be aligned more with industry expectations and expected duties. We propose a framework to connect with industry and create student income-generating projects. This proposed income-generating assessments framework recommended industry-based assessments with which students can not only earn marks towards a subject but potentially earn an income based on it. This paper extends the idea of peer learning to expert or industry learning: an approach that did not employ in higher education. Our approach supports educators in keeping the assessment up-to-date, enabling students to add more value to their learning of industry products and procedures. Students can directly contribute to the product and procedures and learn from the strategies actively employed in the workplace

Framework to Maintain Specialisations in a General Degrees Structure: An economical high-value degree structure

Structuring a degree is a common activity for course developers. Analyzing appropriate subjects and year levels, establishing pre- and co-requisite, and benchmarking against similar degrees are common academic activities. However, the degree structure itself has not had significant changes until now. A degree often lacks flexibility and cohesion and arguably may even lose the main concept of making students highly skilled in the selected labor market more employable. After examining different degree structures, approaches, and employability incentives, we identified a degree structure that can divide each subject into components. Subjects' learning activities, tutorials, and assessments are tailored to align more closely with employment skills. We then proposed breaking all subjects into components relative to year levels, such as majors, minors, streams, and more. This sub-division of work can be performed to any degree. Particular advantages come with a general degree with standard core units and majors—creating learning activities closer to the major and offering students a more robust academic scaffold of their subjects. In addition, higher Education providers benefit by having a cost-efficient degree with minimum overhead to pass the benefits onto students. We discussed several examples from engineering, business, and information technology. Showing how learning opportunities can be divided per degree and subjects into degrees, majors, streams, and specializations. Students studying this framework will have developed skills firmly built on each other, enabling specialization in employment careers and academically. Closing the gap between employment and graduation