Synthesis of graphene and hexagonal boron nitride (hBN) using solid precursors by chemical Vapor deposition (CVD)

名古屋工業大学博士(工学)Doctor of Engineering主査：種村　眞幸doctoral thesi

Mechanochemical synthesis of a new triptycene-based imine-linked covalent organic polymer for degradation of organic dye

In the present work, a novel triptycene-based imine-linked covalent organic polymer (TP-COP) was designed and synthesized via room-temperature, solvent-free mechanochemical grinding. The as-synthesized TP-COP material was fully characterized by Fourier transform infrared spectroscopy, solid-state NMR, field emission scanning electron microscopy (FESEM), high-resolution transmission electron microscopy (HRTEM), Brunauer-Emmett-Teller method, thermogravimetric analysis, diffuse reflectance spectroscopy (DRS), and electron paramagnetic resonance (EPR). The HRTEM image of TP-COP clearly indicates the presence of graphene-like layered morphology (exfoliated layers). The DRS study reveals that TP-COP exhibited a low optical band gap value of 2.49 eV, implying its semiconducting nature. Further, the EPR study confirmed the semiconducting behavior of TP-COP through the generation of free radicals. These findings suggest that TP-COP could be used as an efficient photocatayst for the degradation of organic dye (RhB) under solar irradiation. Moreover, TP-COP showed excellent reusability in degrading dye (RhB) without obvious performance decay

Social Casework: The Indian Paradigm and Practice

This commentary builds on the discussion started in Pulla, Das, and Nikku\u27s 2022 essay "Indigenous or Blended Model for South Asian Social Work?", which questioned the dominance of Western social work paradigms in South Asia. The authors emphasised the limitations of these models in dealing with the region\u27s diverse socio-cultural realities, arguing for a hybrid approach that combines Indigenous epistemologies with global views. Building on this foundation, the current study examines Social Casework: The Indian Paradigm and Practice, a seminal contribution to the developing Bharatiyakaran movement—the Indianisation of social work. This emergent paradigm highlights a decolonised, culturally embedded practice model based on Indian philosophical, spiritual, and ethical traditions, such as seva (selfless service), danam (altruism), vasudhaiva kutumbakam (universal family), and concepts from the Bhagavad Gita. The book entitled Social Casework: The Indian Paradigm and Practice by  Ranjana Sehgal and published by Today & Tomorrow\u27s Printers and Publishers, New Delhi, documents efforts to create a uniquely Indian casework technique, providing empirical findings, theoretical critiques, and culturally appropriate frameworks from throughout the subcontinent. The authors in this volume delve into classical Indian notions such as karma, ashramas, purusharthas, syadvada, and Ayurvedic principles, offering them as the foundation for a holistic and context-sensitive approach to casework. This review essay emphasises the urgent need to transcend Western individualistic ideas and interact with the spiritual and community ethos inherent in Indian culture. This paradigm shift not only enhances the cultural relevance and effectiveness of social work practice in India, but it also contributes to larger worldwide efforts to diversify and decolonise professional knowledge systems. By integrating with Indian traditions, this movement encourages practitioners to reframe social work as both a professional discipline and a spiritual practice, grounded in collective well-being and ethical responsibility

Assessing the Influence of Type of Base Materials on Choosing Permanent Restoration in Pulp Capping - A Retrospective Analysis

 The success of vital pulp therapy techniques is considerably dependent on the technique employed,the inflammatory status of the pulp tissue,the type of pulp therapy agent used and period of observation. The commonly used agents are calcium hydroxide ,Resin modified glass ionomer cement and mineral trioxide aggregate. The permanent restoration following the pulp capping plays a very crucial role in the success of the treatment. The commonly used restorations are composites,amalgam and bilayered restoration.The aim of this study was to assess the type of base materials in pulp capping and its influence on permanent restoration.A cross sectional study done at Saveetha Dental College with the sample size of 69 was analysed. The factors like age ,gender,base material ,type of teeth and permanent restoration were assessed. The P value of less than 0.05 was considered to be significant.Result of type of base material showed,Calcium hydroxide >Calcium hydroxide +Resin modified glass ionomer cement >Bio aggregate material and the permanent restoration showed Composite >Bilayered restoration > Amalgam.The statistical analysis showed the p value =0.338( >0.05) ,which implies that there is no significant association between the type of base material with the type of permanent restoration.The current study showed that calcium hydroxide and composite restoration were the preferred options of base material and permanent restoration respectively.But with recent advances it has been proved that Bioaggregate material has better properties than calcium hydroxide ,which is no longer a gold standard material

Sociodemographic profile of geriatric patients attending psychiatry department in a tertiary care center

Introduction: With rise in life expectancy, the elderly population is increasing globally and in Nepal. With increasing age, medical and psychiatric co-morbidities have become a challenge. This study aimed to study sociodemographic profile and associated life stressors in geriatric population attending psychiatric unit in tertiary care center. Method: A hospital based cross-sectional study was conducted among 101 elderly patients and diagnosis was made as per ICD-10 DCR (Diagnostic Criteria for Research) criteria. PSLES (Presumptive Stressful Life Events Scale) was used to identify various stressful life events. Analysis of descriptive variable were done using MS Excel. Result: Study conducted among 101 elderly patients showed that most patients had depression 50(49.50%) and among 51 stressful events as per PSLES, 19 were present in participants. Among 50 patients diagnosed as depression, 7(14.00%) had mild, 39(78.00%) had moderate, 4(8.00%) had mild depression. Stressful life events were significantly associated with geriatric depression. Conclusion: It was seen that depression was the commonest diagnosis among the elderly people attending psychiatric outpatient clinic and stressful life events were present

Verification of TFIT Code Numerical Method for Flow Excursion Simulation

This research is aimed towards accurately modeling and predicting the onset of the two-phase flow excursion instability using the code TFIT (Two Fluid Interfacial Temperature). In order to do this we first had to show that the numerical diffusion of the code’s finite difference equations could be reduced to an insignificant level by decreasing the mesh size. Understanding and being able to accurately model flow excursion can help us understand how to prevent the potential negative effects of this instability. We are using a two-fluid model with physics-based closure relations. The results will be validated against the experimental data available in the literature. This research could give us a better understanding of the transition between instabilities and would contribute to the safety measures used in the coolant systems of nuclear power plants to prevent fuel rod burnout. But first it is necessary to test the effect that the mesh size has on the error. We ran a mesh independence test. The results from the independence test showed that decreasing the mesh size did drastically decrease the error but after a certain mesh size, further reduction caused no further decrease in artificial diffusion

Field assessment of blackgram (Vigna mungo L. Hepper) genotypes against major insect pests in subtropical region of Nepal

Direct damage due to insect pests is one of the major causes limiting the yield potential of blackgram (Vigna mungo L. Hepper) in Nepal. A total of 17 blackgram genotypes were screened for resistance to major insect pests, including aphid (Aphis craccivora Koch.), whitefly (Bemisia tabaci Genn.), hairy caterpillar (Spilosoma obliqua Walker) and pod borer (Helicoverpa armigera Hubner) in National Maize Research Program, Rampur, Chitwan during summer season of 2018 and 2019. The design of the experiment was randomized complete block having three replications. Genotypes were sown on first week of August in a unit plot size of 4 rows of 2 m long with 40 cm row to row spacing and continue plant to plant spacing was maintained and net harvested plot was 3.2 square meters. The recommended dose of fertilizer was 20:40:20 N:P2O5:K2O kg/ha and seed rate 25 kg/ha. The package of agronomic practices was followed as per national recommendation. Data on insects were collected by counting the number of insects per plant. The yield and yield components were recorded at harvest. All screened genotypes differed significantly (p<0.05) for insect population, yield and yield components. From two years field data, three genotypes BLG0069-1, BLG0036-1 and BLG0079-1 had lower number of above mentioned insect populations, exhibited more resistant in both years and produced higher grain yield (~1.5 t/ha) than other genotypes. These genotypes might be useful for the development of major insect pest tolerant high yielding blackgram variety in subtropical region of Nepal

The National Eye Survey of Trinidad and Tobago (NESTT): Rationale, objectives and methodology

Purpose: This paper describes the rationale, study design and procedures of the National Eye Survey of Trinidad and Tobago (NESTT). The main objective of this survey is to obtain prevalence estimates of vision impairment and blindness for planning and policy development. Methods: A population-based, cross-sectional survey was undertaken using random multistage cluster sampling, with probability-proportionate-to-size methods. Eligible participants aged 5 years and older were sampled from the non-institutional population in each of 120 cluster segments. Presenting distance and near visual acuity were screened in their communities. People aged 40 years and older, and selected younger people, were invited for comprehensive clinic assessment. The interview included information on potential risk factors for vision loss, associated costs and quality of life. The examination included measurement of anthropometrics, blood glucose, refraction, ocular biometry, corneal hysteresis, and detailed assessment of the anterior and posterior segments, with photography and optical coherence tomography imaging. Adult participants were invited to donate saliva samples for DNA extraction and storage. Results: The fieldwork was conducted over 13 months in 2013–2014. A representative sample of 10,651 individuals in 3410 households within 120 cluster segments identified 9913 people who were eligible for recruitment. Conclusion: The study methodology was robust and adequate to provide the first population-based estimates of the prevalence and causes of visual impairment and blindness in Trinidad and Tobago. Information was also gathered on risk factors, costs and quality of life associated with vision loss, and on normal ocular parameters for the population aged 40 years and older

Нормативно-правові аспекти дослідження витрат торговельних підприємств

У статті досліджено міжнародні та національні нормативно-правові акти, що розкривають суть та методологічні аспекти формування витрат підприємств у бухгалтерському і податковому обліку. (In the article are investigated standard-legal sources that open methodological aspects of formation of costs of the enterprises in the accounting and tax account.