bluuebunny/crossref_metadata_2025 huggingface dataset:
MEDICAL-SOCIAL AND ECONOMIC ISSUES IN TREATMENT OF PATIENTS WITH DIABETIC FOOT SYNDROME
Authors: Gerasymchuk P. O. , Fira D. B. , Pavlyshyn A. V.
Published: May 2021

Introduction. Аt the present stage of treatment of patients with diabetic foot syndrome can not yet be considered satisfactory, which requires further study of this problem in order to improve the provision of medical and social care to the above patients. Aim. Тo study medical, social and economic issues of providing medical care to patients with diabetic foot syndrome based on the analysis of their treatment in the Ternopil region. Matherials and Methods. The study is based on a retrospective analysis of the treatment of 1963 patients with diabetes mellitus complicated by diabetic foot syndrome during 2000–2017. Neuropathic-infected form of foot lesion was diagnosed in 692 (35.2 %) patients, ischemic-gangrenous - in 604 (30.8 %), mixed – in 667 (34 %) patients. According to the degree of lesion (according to Megitt - Wagner), the distribution of patients was as follows: II – 247 (12.6 %) patients, III – 995 (50.7 %), IV – 584 (29.7 %), V – 137 7 %) of patients. Patients with acute purulent-necrotic lesions and chronic wound defects of the lower extremities underwent surgery of various volumes: surgical debridement, small or high amputation. Results. The analysis of the obtained results allowed to note a number of social, medical and economic problems, the solution of which will significantly improve the results of treatment and in particular reduce the number of amputations in patients with diabetic foot syndrome. As the analysis shows, typical mistakes in the treatment of patients can be divided into three main groups: organizational, diagnostic and tactical. Organizational mistake lies in the fact that today in Ukraine there is no single system providing skilled care to patients with diabetic foot syndrome. The most common diagnostic mistakes include incorrect and insufficiently qualified diagnostics of clinical forms of diabetic foot syndrome and the depths of the spread of purulent-necrotic lesions of the tissues of the foot. The above mistakes significantly affected the timing and results of treatment, worsening the results of the latter. Conclusions. Based on the analysis of treatment of 1963 patients with various pathogenetic forms of the diabetic foot syndrome, a number of medical, economic and social issues have been identified that require their solution. The most typical mistakes and shortcomings in the treatment of these patients were analyzed. A program was proposed to improve the quality of specialized medical care for patients with diabetic foot syndrome.
Analysis of infant and perinatal mortality in health care facilities of the Ministry of Health of Ukraine in 2019 according to the methodology of the World Health Organization «Matrix Babies»
Authors: Zabolotko V. , Rudenko N. , Rudenko O.
Published: May 2021

The article provides information for 2019 on the number of children born alive and dead and the number of dead children under one year in health care facilities under the Ministry of Health of Ukraine. In 2019, 294148 live babies and 1733 dead babies were born, of whom 1585 died before birth and 148 during childbirth. Of those born alive in the early neonatal period, 904 infants died, of which 564 infants died in obstetric hospitals and 340 infants in hospitals other than obstetric hospitals. One of the indicators of the quality of medical services before, during and after childbirth, as well as one of the indicators of the quality of implementation of modern effective perinatal technologies, is the level of perinatal mortality and its components. Analysis of perinatal mortality and its components is performed according to the methodology of the World Health Organization «Matrix Babies», which allows you to analyze the provision of medical services to pregnant women, mothers and newborns using perinatal mortality and answer two questions: Are we doing what we need to do? Are we doing the right thing? Suggestions for improving the provision of medical services to pregnant women, mothers and newborns have been identified.
Indication et résultats des résections des têtes métatarsiennes en dehors de la polyarthrite rhumatoïde
Authors: Barla M. , Capdevielle P. , Couraudon A. , Bernard E. , Galliot F. , Schmitz A. , Mainard D.
Published: May 2021

La résection des têtes métatarsiennes est une intervention qui est classiquement utilisée dans les métatarsalgies sévères avec luxation ou destruction métatarsophalangienne de la polyarthrite rhumatoïde. Cette intervention peut également être très utile dans certaines indications de métatarsalgies sévères d’origine mécanique, en particulier dans les pieds ronds fixés, les séquelles traumatologiques, les échecs multiples d’interventions antérieures, les pieds creux ou neurologiques. Il peut s’agir alors d’une opération de sauvetage dont les résultats sont plutôt satisfaisants. La littérature est assez pauvre concernant ces indications. Nous rapportons ici une série de dix pieds opérés pour de telles indications.
Social Transformation of Indonesian Older Adults in Suburbs: An Exploratory-descriptive Qualitative Study
Authors: Agustang Andi
Published: May 2021

The older adult’s phenomenon in suburban areas has been identified as a burden and is often neglected. The objective of this study is to find patterns of habits of the older adults in meeting basic needs, so they can survive in social life. This is a qualitative study related to the phenomenon of the older adults living their lives at the age 60 years or above. Collected data were analysed with a triangulation and inductive method, along with holistic exploration-descriptive qualitative, place aspects, actors and activities using the constructivism paradigm. In-depth interviews were conducted involving one of the closest family members. This study found determinants of long life (according to context) related to habit patterns: activity, rest and sleep, consumption of traditional foods and drinks carried out regularly and consistently. Then the other findings relate to a balanced mental attitude was identified as a determinant of the survival factor of the older adults in a period of social transformation and humanist patterns of social interaction.
Investigation of the environmental characteristics of a diesel engine when operating on activated fuel
Authors: Plotnikov S. A , Kartashevich A. N , Motovilova M. V
Published: May 2021

The internal combustion engine is the most widespread source of energy for vehicles. The main requirements for an internal combustion engine include: the efficiency of functioning as part of a vehicle, high performance indicators, as well as environmental parameters of the emission of exhaust gases into the environment. The fulfillment of these conditions is possible by improving the design of the engine, as well as improving the working process of the diesel engine while increasing the quality of diesel fuel or additional impact directly on the fuel itself. One of the most effective ways to influence diesel fuel is to transfer a certain amount of heat to it in the high-pressure fuel line in front of the injectors. At the same time, the physical and mechanical properties of diesel fuel change, which leads to a change in mixture formation and the combustion process in the engine cylinder. To intensify the combustion process, a method of preliminary high-temperature local heating of diesel fuel in the fuel supply system in front of the injectors was proposed. To achieve this goal, several main directions were identified, including the study of environmental indicators during the intensification of the combustion process. The tests were carried out in stages. At the first stage, the operation of the fuel injector when operating on activated fuel (bench, laboratory tests) was investigated. At the next stage, the indicators of the diesel engine in the main modes of its operation were investigated. Bench (laboratory) tests made it possible to draw a conclusion about the operability and compliance of the aggregate with the technical requirements of the manufacturer and the parameters of GOST. The bench tests proved the possibility of a diesel engine running on activated fuel without deteriorating environmental performance in the exhaust gases; at the same time, changes in the toxicity and smoke of the exhaust gases from different values of the average effective pressure were revealed.
Mathematical modeling of a system for monitoring the insulation resistance of a high-voltage power grid of a hybrid vehicle
Authors: Malyshev A. N , Grunenkov YE. A , Debelov V V. , Kozlovskiy V. N , Shishkov A. N
Published: May 2021

The paper presents mathematical models and computational and analytical dependences, which make it possible to implement a system for monitoring the insulation resistance of a high-voltage power grid of a hybrid vehicle and make it possible to formulate requirements for the physical and simulation model of the software and hardware complex of laboratory tests. The purpose of the work is to determine the main functions and characteristics of the insulation monitoring system, its features, the principle of operation and methods of monitoring the insulation resistance, drawing up requirements for the simulation system. The introduction justifies the importance of monitoring insulation resistance and provides references to standards that regulate the requirements for the measurement and determination of mains failure. The block diagram of the vehicle power supply and the role of the insulation resistance monitoring system in this diagram are presented, the features of insulation monitoring are explained. The principle of operation of the insulation monitoring system and the use of the most common schemes are considered. The calculated dependencies for each of the presented schemes are given. These allow calculating the insulation resistance. The procedure for measuring the insulation resistance according to the ISO standard is described and the corresponding equations are given. For the presented circuit, a graph that explains the principle of the system's operation, when one of the keys is closed, the voltage across the measuring resistor changes with the normal insulation state of the positive and negative power supply bus of the high-voltage system is given. The conclusions provide a generalization of the presented mathematical model and formulate the requirements for the software and hardware complex, which allows simulation and mathematical modeling of electrical systems and their components in various operating modes. The paper explains the features of the software and hardware complex that allows to simulate changes in the insulation resistance and faults of the high-voltage power supply network for a vehicle with a hybrid power plant.
La expansión secular de la economía
Authors: Pernaut Ardanaz, S. J. Manuel
Published: May 2021

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Para una Política de la Población
Authors: Brugarola. S. J. Martín
Published: May 2021

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Soluciones Científicas de Problemas Sociales
Authors: Due, S. J. Antonio
Published: May 2021

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Estadísticas selectivas: Población Mundial
Authors: Redacción Consejo de
Published: May 2021

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Instituciones sociales modernas:
Authors: Brugarola. S. J. M.
Published: May 2021

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II.- Crónica Social de España
Authors: M. M.
Published: May 2021

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III.-Crónica Internacional
Authors: Brugarola. S. J. M.
Published: May 2021

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Cartas de la revista: Jornadas de Hermandad Laboral en Barcelona
Authors: Suaret, S. J. José
Published: May 2021

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El problema de los precios
Authors: Redacción Consejo de
Published: May 2021

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Los bienes "superfluos" en la sociedad actual
Authors: Gorosquieta, S.J. J.
Published: May 2021

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Instituciones sociales modernas:
Authors: García Román, Pbro Abundio
Published: May 2021

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La cuestión sigue viva y amenazadora
Authors: Redacción Consejo de
Published: May 2021

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En torno al Congreso sobre Clases Medias
Authors: Marina, S. J. Manuel
Published: May 2021

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Estadísticas selectivas: Renta Nacional de diferentes países
Authors: Redacción Consejo de
Published: May 2021

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Responsabilidad ante la formación social de los jóvenes
Authors: Redacción Consejo de
Published: May 2021

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Cambios en el sindicalismo
Authors: Brugarola. S. J. Martín
Published: May 2021

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Las clases medias en las regiones sin industrias
Authors: Cuesta, S. J. Salvador
Published: May 2021

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Cursos de capacitación social
Authors: Del Valle S. J. F.
Published: May 2021

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Semana S. de Vigo-Emigración
Authors: Marina, S. J. M.
Published: May 2021

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Estadísticas selectivas: La población actica española de 1900 a 1957
Authors: Redacción Consejo de
Published: May 2021

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I.- Crónica Social de España
Authors: V. F.
Published: May 2021

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SOCIO DEMOGRAPHIC FACTORS FOR COMORBID DEPRESSION AMONG ALCOHOL DEPENDENCE PATIENT: A CROSS-SECTIONAL DESCRIPTIVE STUDY.
Authors: Kishore Aman , Lahariya Sanjay , Shrivastava Abhijeet
Published: May 2021

Despite of high prevalence of depression in alcohol dependent individual, the nature of relationship between depression and alcohol dependence has been difficult to define.  Present study investigates the relationship between socio demographic and alcohol related variables with the diagnosis of depression

It is a cross-sectional descriptive study with a sample of 50 individuals diagnosed to have alcohol dependence syndrome that consented and fulfilled inclusion and exclusion criteria.

MINI-6 was administered for dividing the sample into depressed (n=11, 22%) and non depressed (n=39, 78%) groups.

There were only few differences among the two groups on socio-demographic and alcohol related variables. 

Keywords: Alcohol Dependence, Depression, Co-morbidity, Socio-demographic factors.
A Comparative Study on Anxiety of Medical and Non-medical Staff due to Exposure and Non-exposure ‎to the Novel Coronavirus Disease
Authors:   Critical Care and Pain Management Research Center, Jahrom University of Medical Sciences, Jahrom, Iran., Rahmanian Mohammad , Kamali Ali Reza ,   Department of Anesthesiology, Faculty of Medicine, Arak University of Medical Sciences, Arak, Iran., Mosalanezhad Hadi ,   Department of Health, School of Medicine, Jahrom University of Medical Sciences, Jahrom, Iran., Foroughian Mahdi ,   Department of Emergency Medicine, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran., Kalani Navid ,   Center for Health and the Social Sciences, Jahrom University of Medical Sciences, Jahrom, Iran., Hatami Naser ,   Student Research Committee, Jahrom University of Medical Sciences, Jahrom, Iran., Heidarnezhad Mohammad ,   Student Research Committee, Jahrom University of Medical Sciences, Jahrom, Iran., Rayatdoost Esmaeal ,   Department of Emergency Medicine, Faculty of Medicine, Jahrom University of Medical Sciences, Jahrom, Iran., Abiri Samaneh ,   Department of Emergency Medicine, Faculty of Medicine, Jahrom University of Medical Sciences, Jahrom, Iran.
Published: May 2021

Background and Aim: The recent Coronavirus Disease 2019 (COVID-19) outbreak has caused a lot of stress and anxiety in the world. Given that health care workers are at the forefront of fighting against COVID-19, they are the first to be exposed to this disease. Methods & Materials: This is a descriptive cross-sectional study conducted on 402 medical and administrative staff working in hospitals and health centers affiliated to Jahrom University of Medical Sciences in 2020. Data collection tools were a demographic form and the Corona Disease Anxiety Scale (CDAS). Ethical Considerations: This study was approved by the Vice-Chancellor for Research of Jahrom University of Medical Sciences (Code: IR.JUMS.REC.1399.046). Results: The mean score of psychological symptoms of anxiety in the medical staff (46.91) was higher than in the administrative staff (42.63). Its physical symptoms were also higher in the clinical staff (12.80) compared to the administrative staff (10.94). There was a significant difference between the clinical and administrative staff in terms of anxiety (P=0.030). Conclusion: Medical staff has higher psychological and physical symptoms of anxiety compared to the non-medical staff during the COVID-19 outbreak. Therefore, in order to reduce the anxiety of medical staff, health policymakers should take the necessary measures to take care of this group.
Status of Food Security in Kerman, Iran During the COVID-19 Pandemic
Authors:   Kerman Health Center, Kerman University Of Medical Science, Kerman, Iran., Tezerji Sajjad , Nazari Robati Fatemeh ,   Kerman Health Center, Kerman University Of Medical Science, Kerman, Iran.
Published: May 2021

Background and Aim: Food security at individual, family, national, regional and global levels can be achieved when all people at all times have physical and economic access to adequate and healthy food to meet their nutritional needs and priorities for a healthy and active life. This study aims to investigate the status of food security and its related socioeconomic factors in households during the Coronavirus Disease 2019 (COVID-9) pandemic in Kerman, Iran. Methods & Materials: This descriptive cross-sectional study was conducted on 500 households selected randomly from five comprehensive health centers in five districts of Kerman city in Iran. A demographic/socioeconomic questionnaires and the Persian version of the 18-item USDA Household Food Security Survey (HFSS) were used for collecting data. Ethical Considerations: All ethical principles are considered in this article. The participants were informed about the purpose of the research and its implementation stages. They were also assured about the confidentiality of their information and were free to leave the study whenever they wished, and if desired, the research results would be available to them. Results: There was a significant relationship between the socioeconomic factors (household size, house size, and number of amenities) and the food security. There correlation between the household size and food security was positive (R= 0.142, P<0.001), while the correlation of house size (R= -0.093, P<0.005) and number of amenities (R= -0.73, P<0.001) with food security was negative. Conclusion: By increasing the awareness of people and improving their economic situation, it is possible to improve the food security situation of households in Kerman city.
Power Optimization for ASIC Design (Low power ASIC)
Authors: Vandra Hitesh H
Published: May 2021

The modern era of embedded system design is geared toward the design of low-power systems. One way to reduce power in an application-specified integrated circuit (ASIC) implementation is to reduce feature size. Scaling of feature sizes in semiconductor technology has been responsible for increasingly higher computational capacity of silicon. However, questions regarding the limits of scaling have arisen in recent years due to the presence of leakage. As the supply voltage is lowered to satisfy the performance requirement, the threshold voltage has to be scaled, which increases leakage. More than 40% of the total power consumption is due to leakage of the transistor is in DSM. This leakage will increase with scaling become comparable with switching power. The goal of this paper is to analyse different low power circuits and optimization techniques to improve the power dissipation with the use of power gating components, retention registers, level shifters, isolation cells etc.
Spectroscopic studies of oil products west-absheron oil fractions.
Authors:   Institute of petrochemical processes named. Yu.G. Mamedaliyev of NAN Azerdbajan, Baku, Abbasv V.M. , Najafova M.A. ,   Institute of petrochemical processes named. Yu.G. Mamedaliyev of NAN Azerdbajan, Baku, Abdullayeva Yu.A. ,   Institute of petrochemical processes named. Yu.G. Mamedaliyev of NAN Azerdbajan, Baku, Akhmedbekova S.F. ,   Institute of petrochemical processes named. Yu.G. Mamedaliyev of NAN Azerdbajan, Baku, Balakishieva S.A. ,   Institute of petrochemical processes named. Yu.G. Mamedaliyev of NAN Azerdbajan, Baku, Alekperova N.G. ,   Institute of petrochemical processes named. Yu.G. Mamedaliyev of NAN Azerdbajan, Baku
Published: May 2021

The composition and paramagnetism of oil fractions (300-350oC), (350-400oC), (400-450oC), and (450-500oC) of West-Absheron oil were studied using IR, ESR spectroscopy and luminescence methods. In all these refineries, asphaltene radicals with a concentration of 1018spin/g are registered, which screen all paramagnetic particles present in the oil system. With the exception of the fraction (300-350oC), in which much lower than in the listed fractions, it was possible to register the spectra of metal oxides (DHwidth=117mtl, g=2.7), the spectra from aromatic hydrocarbon radicals (DНwidth=10mtl, g=2.4), which was also registered in the fr.(140-3200C) of the oil itself. The presence of these petroleum products greatly reduces the oil viscosity index. As a result of the cleaning of the latter with an ionic liquid and an adsorption method in the studied oil fractions were found in trace amounts. The increase in the viscosity index of the oil fr. (350-500oC) was increased only after the addition of a foreign Lubrizol additive concentrate. Thus, the SAE15W40 engine oil with a viscosity index of 101.2 and a low pour point (-30oC) was obtained, which is recommended as a motor oil for diesel engines.
Differences in the power parameters of diesel engines with a high pressure fuel pump and a battery fuel system for some types of fuel
Authors:   PJSC «Avtodizel», (YaMZ), Boykov D. V. , Perepelin A. P. ,   Federal state budgetary educational institution of higher eucation, Yaroslavl state technical University (YSTU), Hryashchev Yu. E. ,   Federal state budgetary educational institution of higher education, Yaroslavl state technical University (YSTU)
Published: May 2021

The article presents calculated and experimental data on changes in the power parameters of diesel engines equipped with a fuel system of various designs, on some types of fuels. Investigated: Euro diesel fuel, TS-1 kerosene, fuel mixtures with gasoline. It is shown that the power parameters of diesel engines with a "Common Rail" type battery fuel system with an electronic control unit change to a lesser extent in comparison with a traditional plunger-type high-pressure fuel pump with a mechanical regulator when switching to a more compressible and lighter fuel. The reasons for these differences in changing engine parameters are considered.
Stady of the thermal-oxidative stability of synthetic oils for aircraft gas turbine engines and helicopter gearboxes
Authors:   Central Institute of Aviation Motors, Moscow, Russia, Yanovskiy L. S. , Ezhov V. M. ,   Central Institute of Aviation Motors, Moscow, Russia, Ilina M. A. ,   Central Institute of Aviation Motors, Moscow, Russia, Sharanina K. V. ,   Central Institute of Aviation Motors, Moscow, Russia
Published: May 2021

The aim of the research was to develop a method for determining the values of aviation oils during their oxidation based on the theories of chemical kinetics. Studies of the thermal-oxidative stability (TOS) of aviation lubricating oils based on polyesters for gas turbine engine aircraft were carried out using the method based on GOST 23797-79. The values of the kinematic viscosity at temperatures of 100 °C and minus 40 °C, as well as the acid number of samples of oils LZ-240, ASMO-200M, ASMO-220 and VASMO-225M, oxidized for 10, 20, 30, 40 and 50 hours at temperatures of 200, 225 and 240 °C were determined. Based on the results obtained, kinetic graph changes in oil parameters are constructed, the reaction order is determined, and models of changes in oil parameters during oxidation based on the Arrhenius equation and the Van't-Hoff rule are proposed. The calculation error does not exceed 10%. Dependencies of oxidation temperature and oxidation time are built, where maximum permissible values of oil parameters are achieved. These function allow you to evaluate the operability of oils and the quality margin according to its TOS.
A pesquisa sobre Liderança no Brasil: publicações no EnANPAD ao longo de 10 anos
Authors: Gallon Shalimar , Bitencourt Betina Magalhães , Fleck Carolina Freddo
Published: May 2021

As teorias sobre Liderança demonstram a importância de se investigar nas pessoas que ocupam cargos da alta administração uma relação entre o perfil tido como ideal e as atitudes de trabalho destes indivíduos. Encontra-se, de forma geral, um conceito que aborda os líderes como indivíduos ativos, que mobilizam as pessoas para realizar trabalhos adaptativos, incentivando a aprendizagem rápida e a adoção de novos papéis, relacionamentos e valores. A proposta deste trabalho é apresentar uma meta-análise sobre Liderança para identificar como e de que forma essa temática vem sendo tratada nas pesquisas nacionais. Para isso, optou-se pela busca aos anais do Encontro da Associação Nacional de Pós-Graduação e Pesquisa em Administração (EnANPAD) em todas as áreas que o evento engloba. Essa decisão deu-se pelo fato de que apesar de ser um tema ligado mais a comportamento organizacional e gestão de pessoas, outras áreas vem buscando pesquisas que possam auxiliar na identificação do quanto a Liderança pode influenciar nessas. Os trabalhos encontrados demonstraram manter-se em torno de poucos assuntos principais e com pequena contribuição para esta temática. Nota-se também que há uma presença forte de literatura estrangeira ligada às pesquisas mencionadas.
Programa Primeira Empresa Inovadora (Prime): primeiros resultados
Authors: Freitas Taís Oliveira de , Moraes Joysi
Published: May 2021

O objetivo deste artigo é discutir o espaço que o Programa Primeira Empresa Inovadora (Prime) ocupa no âmbito do apoio e financiamento de projetos de empresas nascentes. O Prime é operado pela FINEP e conta com apoio de incubadoras de empresas de diversas regiões do país, que atuam como agentes operacionais descentralizados do programa. Para atingir o objetivo, a pesquisa descreveu como funciona o programa, apresentou e analisou seus primeiros resultados, sendo possível identificar quais foram seus pontos negativos, na visão dos agentes operacionais, e seus pontos positivos no âmbito do financiamento de empresas nascentes, bem como as principais características dos projetos contratados pelo Prime.
Trajetórias de acumulação de competências tecnológicas e processos de aprendizagem: proposta de modelo analítico para agências de viagens e operadoras turísticas
Authors: Rocha Saulo Barroso , Zouain Deborah Moraes
Published: May 2021

Este artigo tem como objetivo principal propor modelo de identificação de trajetórias de acumulação de competências tecnológicas para empresas do setor de agenciamento de viagens e operações turísticas, e examinar o impacto dos processos de aprendizagem sobre estas trajetórias. Para atingir tal objetivo, buscou-se a literatura de inovação e aprendizagem tecnológica em organizações de países industrializados e em processo de industrialização. A maioria dos estudos que descrevem modelos de avaliação da capacidade inovadora e de aprendizagem tecnológica focaliza indústrias. Nesta literatura, escassas são as pesquisas que tratam do setor deagenciamento de viagens. A partir desta teoria, foram adaptadas duas estruturas para as empresas do setor de agências de viagens: a matriz de competências  tecnológicas e a de análise de processos de aprendizagem. Com base nas evidências na literatura, verificou-se que: (1) o modelo proposto pode ser adequado para identificar a trajetória da acumulação de competências tecnológicas neste setor; (2) a combinação de diferentes mecanismos de aprendizagem pode impulsionar a evolução desta trajetória; e (3) além desta variedade de ações, a recorrência, o funcionamento e a interação entre os diferentes processos de aprendizagem potencializam a conversão do conhecimento do nível individual para sistemas e rotinas organizacionais, possibilitando um maior nível de competitividade para estas organizações. Propõe-se uma generalização analítica da metodologia do estudo para outras empresas do mesmo setor, a fim de ampliar as evidências de agências e operadoras, e contribuir para a prática de gestão destas organizações. Palavras-Chave: Inovação, Competências Tecnológicas, Processos de Aprendizagem, Turismo, Agências de Viagens.
Electrothermal analysis of integrated circuits: a realization by infrared thermography
Authors: Farrokhi Farnoos
Published: May 2021

The International Technology Roadmap for Silicon (ITRS) predicted that by the year 2016, a high-performance chip could dissipate as much as 300 W/cm² of heat. Another more noticeable thermal issue in IC's is the uneven temperature distribution. Increased power dissipation and greater temperature variation highlight the need for electrothermal analysis of electronic components. The goal of this research is to develop an experimental infrared measurement technique for the thermal and electrothermal analysis of electronic circuits. The objective of the electrothermal analysis is to represent the behavior of the temperature dependent characteristics of electronic device in near real work condition.
An infrared (IR) thermography setup to perform the temperature distribution analysis and power dissipation measurement of the device under test is proposed in this reasearch. The system is based on a transparent oil heatsink which captures the thermal profile and run-time power dissipation from the device under test with a very fine degree of granularity.
The proposed setup is used to perform the thermal analysis and power measurement of an Intel Dual Core E2180 processor. The power dissipation of the processor is obtained by calculating and measuring the heat transfer coefficient of the oil heatsink. Moreover, the power consumption of the processor is measured by isolating the current used by the CPU at run time. A three-dimensional fininte element thermal model is developed to simulate the thermal properties of the processor. The results obtained using this simulation is compared to the experimental results from IR thermography.
A methodology to perform electrothermal analysis on integrated circuits is introduced. This method is based on coupling a standard electrical simulator, which is often used in the design process, and IR thermography system through an efficient interface program. The proposed method is capable of updating the temperature dependent parameters of device in near real time.
The proposed method is applied to perform electrothermal analysis of a power MOSFET to measure the temperature distribution and the device performance. The DC characteristics of the device are investigated. The obtained results indicated that the operating point, I-V characteristics and power dissipation of the MOSFET vary significantly with temperature.
Infrascape urbanism: beyond the landscape of linear city
Authors: Kim Chanhoo  John
Published: May 2021

Across a breadth of disciplines, the criticism of automobile dependence and the re-conceptualization of mass transit infrastructure have become critical matters of concern. This thesis recognizes these concerns as architectural issues, and argues that design methodology can integrate solutions which respond to the challenges of our decentralized and fragmented urban landscape.

The following thesis is an investigation of the relationship between infrastructure and architecture, which explores and identifies opportunities within the unique challenges posed by transportation within the context of the rapid densification of the Greater Golden Horseshoe Area. Rather than subscribing to the utilitarian foundation of infrastructure, this thesis recognizes the significant design potential within this operative system and morphology. In doing so, the thesis project proposes a disciplinary hybrid, which calibrates and synthesizes landscape, infrastructure and architecture.
Fibre Optic SERS Probes For Remote Sensing
Authors: Pandya Aditya H.
Published: May 2021

Surface Enhanced Raman Spectroscopy (SERS) enhances spontaneous Raman spectroscopy by the virtue of plasmon resonance of nanoparticles. Clinical application of SERS is challenging as nanoparticles remain in the body for long periods of time and a full toxicity analysis has yet to be extensively studied.

In this study, Nanosphere lithography (NSL) was used to create optical fibers with nanoparticle enhanced tips for remote sensing using SERS. A custom designed RS collection setup was created for optimal collection of spectra from the optical fibers. It was found that an optical fiber with 0.5 numerical aperture (NA) allowed for better detection of Raman peaks while mitigating the fluorescence background of the optical fiber without any optical filters. Such a sensing platform can potentially be used to temporarily introduce nanoparticles into a sensing environment as it allows retracting the nanoparticles along with the tip.

Nanoporous SERS platform has been fabricated using nanoporous silica glass with 7 nm and 17 nm pore diameters. An inexpensive fabrication approach of sputter deposition of Au layers was employed on prefabricated nanoporous silica glasses. 7 nm pore glasses provided larger enhancement than the glasses with 17 nm pores. A gold layer thickness of 25 nm was observed to produce largest enhancements. Nanoporous SERS substrates allow a larger effective SERS area compared to NSL based fabrication substrates and such nanoporous structures can be potentially fabricated on optical fiber tips for remote sensing.

Finite Element Modeling (FEM) method was implemented for simulating single nanoparticles, an infinite periodic array of nanoparticles and nanoporous films using COMSOL Multiphysics software package. The extinction spectra obtained theoretically were found to match the experimental results for single nanoparticles. The maximum enhancement for the periodic array was two orders of magnitude larger than single particles while the integrated (average) enhancement was only two and a half times larger. Nanoporous films were also modelled using the FEM technique.

Preliminary clinical data were collected from excised breast tissues for evaluating RS as a tool for cancer diagnostics. Spectral peaks from healthy tissues were found to be prominent than cancerous tissues and further experiments are needed to create a multivariate classification model for diagnostics.
'Positive' images?: a critical examination of queer visibility in contemporary popular culture.
Authors: Zieman Kate
Published: May 2021

"The past five decades have seen a marked increase in attention to, and representations of, queer people in mainstream popular culture. Within the last ten years, several films and television programs featuring gay men and lesbians have garnered critical acclaim and high ratings among diverse audiences and myriad companies have incorporated queer imagery into their advertising campaigns. Despite fervent protests from socially conservative organizations, this trend shows no signs of abating."--Introduction.
RESSO: a social media network for luxury retail
Authors: Arslan Asma
Published: May 2021

This Major Research Project investigates the role of social media to fill the gap created in online and offline dynamics of Luxury Industry over the recent years. This gap is evident in the fact that 75% research about a purchase is done online but online sales bring are only a mere 6%. Psychological study of luxury brand consumers informs the aim of luxury brands to mainly deliver status elevation, social stratification and internal satisfaction. Resso is a project inspired by the psychological objectives of luxury consumers and online consumers decision journey referred to as CDJ. Resso is an online hybrid luxury market place which is a highly interactive social media network where users shop luxury goods. They also receive luxury client services, offers, access to latest reviews and YouTube influencers linked to each product. Users make real connections with each other and an option to give and track charity on one digital platform. The paper will discuss theories of luxury brand management, present digital scenario, the design structure and affordances of the project Resso.
The effect of sugar on the processing behaviour of palm oil: from confectionery fundamentals to predictive regression models
Authors: West Ryan
Published: May 2021

This dissertation explores the impact of confectioner’s sugar and processing on key physical characteristics of palm oil. Though bulk oils such as palm oil have been well-studied, fat-continuous dispersions that include other ingredients such as sugar, cocoa solids, or milk powder are much more complex due to ingredient interactions and the resulting changes in properties such as fat crystal morphology and crystallization pathway. These implications restrict the ability to extrapolate responses from bulk oils towards multi-ingredient systems. This is particularly important given that palm oil in foods rarely exists in bulk but is usually mixed with multiple ingredients.
The effects of processing on both bulk oil and oil-sugar blends were explored over four weeks of storage and clearly demonstrated that the existence of a dispersion resulted in large differences in rheology and texture compared to the bulk. Adding sugar significantly increased storage modulus and firmness of the oils while exhibiting increased sensitivity towards processing conditions. Predictive models were generated through multiple regression analysis that overcame limitations derived from extrapolation and corrected for these behavioural differences using a single binary variable accounting for the presence of confectioner’s sugar. As a result, the contributions of sugar to the rheology and texture of oil-sugar blends were modelled, a first in such systems.
The results contained within this dissertation are of great industrial relevance as they:
i) limit the dependence on anecdote and empiricism to explain results,
ii) generate detailed process maps,
iii) identify optimal process values to attain desirable rheological and textural
responses, and
iv) open the door for further investigation into dispersion effects.
Promoting resilience : teachers' perceptions from the classroom
Authors: Proulx Meghann
Published: May 2021

This paper examined seven teachers' interpretations of the terms 'at risk' and resilience, their preceived influential role, and universal teaching methods that were perceived to promote resilient behaviours in the classroom. 'At risk' was described as a more familiar term than resilience, with a stronger focus in schools on academic 'at risk'. Resilience was viewed to be predominantly a result of internal attributes. Four themes emerged from the one-on-one interviews with elementary school teachers. Responsibilities, high expectations, consistency, and social competence were perceived by the teachers as leading to resilience development among their students. This study adds to the growing body of research which aims at uncovering the processes leading to the development of resilience.
Fabrication and optimization of dye-sensitized solar cells
Authors: Fischer Benjamin
Published: May 2021

Dye-Sensitized Solar Cells (DSSCs) have garnered considerable attention given their desirable design properties including, transparency and flexibility. A considerable amount of research has been done in all facets of the DSSC permitting significant progress in device development. However, there is still much improvement needed to make DSSCs a viable alternative energy option. The I-/ I3 - electrolyte has been used extensively in DSSCs but has inherent drawbacks including its absorption range and corrosiveness to DSSC components. Recently, cobalt based electrolytes and hole transport materials (HTMs) have shown promise of improved performance, especially in combination with metal free dyes. This thesis aims to develop a mastery of device fabrication and then study and compare various electrolytes paired with triphenylamine (TPA) and BODIPY based dyes with the aim of improving DSSC efficiency and long-term stability.
Negotiating Identity : Indo-Trinidadian Youth and Their Perceptions of Self Definition and Agency
Authors: Sirju Tania
Published: May 2021

This study explores the experiences of Indo-Trinidadian youth and their self-identity. It seeks to generate an understanding of how Indo-Trinidadian youth have to negotiate their identity after migration from Trinidad to Canada. This negotiation comes as a result of their hybrid identity - racially South Asian but culturally Caribbean. Because school is the first space of socialization that immigrant youth encounter after family, this study focuses on issues faced in school. Using a qualitative research design, this study examines the personal narratives of eight (four males and four females) Indo-Trinidadian youth. The in-depth interviews with these youth bring forth the notion that Indo-Trinidadian youth are constantly reconstructing their identities as they negotiate between their Indian and Caribbean cultures. This paper highlights the challenges, that Indo-Trinidadian youth encounter as well as the ways in which they address them, essentially leading to a sense of agency for their self identity.
Integration Of RFID With WLAN
Authors: Khan Nargis
Published: May 2021

Radio Frequency Identification (RFID) and Wi-Fi WLANs have achieved widespread applicability in different application domains. However, tag range of RFID systems is very short. Hence, integrating RFID with WLAN networks can contribute to wider application of RFID since Wi-FI nodes have much larger communication range. However, both RFID and WLAN use the same frequency band and incurs interference by [sic] each other for channel utilization.

In this thesis, an efficient approach to solve the coexistence and integration problem of RFID and Wi-Fi WLAN is proposed. This solution allows these networks to access the medium in a time sharing manner by making the WLAN Access Point (AP) aware of the RFID neighboring network at the Medium Access Control (MAC) layer. Thus, it is possible to locate and identify the RFID tags in the physical space, with co-located Wi-Fi WLANS. Simulation results show that both networks work together by maintaining the performance such as higher throughput and lower collision probability, as is desired.
"We’re Still Here, We’re Still Fighting” : The Experiences of Rural Survivors Accessing Sexual Assault Evidence Kits
Authors: Bosveld Katelyn
Published: May 2021

This qualitative research study explores the experiences survivors of sexual violence across rural Ontario accessing Sexual Assault Evidence Kits, as told by service providers from Sexual Assault and Domestic Violence Treatment Centres. Using a narrative thematic analysis, semi-structured interviews were completed and subsequently analyzed from an intersectional feminist perspective. The purpose of this approach was to identify themes that occurred across multiple interviews in order to understand the barriers that exist for survivors and solutions proposed by service providers in the field. Factors such as transportation, including reliance on police for transportation, are explored, as are the implications of the COVID-19 pandemic which arose partway through the research process. Additionally, implications for social work practice and service providers to survivors of sexual violence, strengths and limitations, and areas for future research are discussed.
The Development Of A Piezoelectric Fuel Injector For Diesel Engine
Authors: Chiu Kei S.A.
Published: May 2021

Stringent emission levels challenge automotive industries to come up with innovative ways of improving existing technologies. In advancing diesel engine technology, the key factor lies in further developing a piezoelectric fuel injector in the common-rail system. A direct acting piezoelectric fuel injector prototype for the common-rail system was developed to preserve the lifetime of the actuator, achieve an adequate needle lift, and response quickly. Through analytical work and ANSYS simulations, problems were encountered on the initial designs. These problems were overcome with successive design improvements. Simulations and analytical estimations provide evidence on the potential performance on these improvements. After design iterations, a prototype was fabricated according to the final design. Experimental work further validated that the fuel injector designed is capable of meeting the requirements. Problems with the test results are discussed for further improvements on the design.
Augmented Reality and Human Factors Applications for the Neurosurgical Operating Room
Authors: Nguyen Nhu
Published: May 2021

The virtual overlay of patient-specific anatomies onto a surgical site through Augmented Reality (AR) technologies has been thought to be a potentially ideal neuronavigational system for use in neurosurgery. Although impressive and futuristic, there are many design considerations that must be taken into account, including surgeon reception, perceived utility, intuitive control and manipulation design, and overall system accuracy during surgery. To implement AR into the neurosurgical Operating Room (OR), a gradual approach of evolutionary design to ensure widespread adoption may be considered. This thesis presents a potential pathway for the introduction of AR technologies into the neurosurgical OR.

The thesis is divided into three parts: incorporation of AR features into existing platforms for improved functionality and introduction of AR concepts to surgical environments, observation and evaluation of surgeon perception of AR overlays and AR headsets to inform display methods and designs, and quantification of virtual object placement accuracy in a clinical environment. The findings presented show that AR integrated systems improve OR workflow when conventional tracked tools are unavailable, user preference of AR overlays onto the surgical site change depending on operator experience level, and the placement accuracy of state-of-the-art AR head mounted displays are suitable for presurgical planning and very close to accuracy needed for surgical guidance. These three elements are key to developing a pathway for adoption of AR technologies in the OR, and help to inform designs for future headsets to assist surgeons and improve patient care.
Wearable technology for design and safety evaluation of rider acceleration exposure on Zip Line attractions
Authors: Sicat Shelly-Ginelle
Published: May 2021

Aerial adventure attractions are intended to produce exhilarating sensations at significant elevation, speed, and acceleration, all while maintaining the safety of the participant. While Zip Line designers and owners can refer to international standards addressing many safety requirements, the measurement and assessment of acceleration exposures of the Zip Line rider has not been standardized. My major research project (MRP) considers the design and validation protocol for wearable sensor technology to collect acceleration and g-force exposure of a Zip Line rider. Introducing the combination of systematic design and quantitative analysis to wearable technology architectures requires considerable thought taking into account existing ride
standards, biomechanics, ergonomics and the need for data accuracy. The primary objectives are two-fold, 1) contribute a test protocol that will evaluate the reliability and validity of the proposed system, and 2) take a step forward towards implementing a consistent process to capture acceleration exposure on Zip Line attractions. We contribute a test protocol that will evaluate the reliability and validity of the proposed system.