bluuebunny/crossref_metadata_2025 huggingface dataset:
Development of an A1100 aluminum corrugated metal gaskets
Authors: Nurhadiyanto Didik , Mujiyono Mujiyono , Ristadi Febrianto Amri , Fakhri Ardani Ahsanul , Ardeva Gewa , Kusnantoro Muhammad Iqbal , Haruyama Shigeyuki , Yunita Isti , Panichkin Alexander
Published: September 2023

Corrugated metal gaskets (CMG) made from SUS304 have previously been developed, however a coating process with a softer material is necessary for its design to be optimal. The coating process is time consuming and expensive. This research aims to develop CMG from aluminum by simulation analysis and form a CMG design made of aluminum A1100. The method used is development research. The optimum CMG thickness is analyzed using ANSYS Finite Element Analysis (FEA). The control variables being investigated are contact area and contact stress. The independent variable being investigated is the material thickness of CMG. An aluminum gasket is then constructed using a cold-forming process based on the optimum design. The control variables in the leak test are axial force and water pressure. Experiments were also carried out to test the aluminum gasket for leakage. A leakage test is carried out using a water pressure test. Simulation analysis showed results that were in line with experimental leak tests. FEA simulation results show that the optimum gasket thickness is between 3 and 5 mm, with 5 mm being the most optimal. However, CMG with thicknesses of 4 and 5 have similar contact stress and contact area. Leakage test results also show similarities with simulation results. CMG with a thickness of 5 mm has the best performance. The experimental results show that CMG made from aluminum A1100 is suitable for use as a gasket to prevent leakage, it prevents leakage at fluid pressure up to 12 MPa and axial force 100 kN. The results show that aluminum CMG performs on par with SUS304 CMG coated with nickel or copper. This research succeeded in developing CMG made of aluminum
Determination of quality indicators of sugar fortified with a by-product of elderberry processing
Authors: Samilyk Maryna , Bal’-Prylipko Larysa , Korniienko Daria , Paska Mariia , Ryzhkova Taisia , Yatsenko Ivan , Hnoievyі Ihor , Tkachuk Svetlana , Bolgova Natalia , Sokolenko Viktoriia
Published: September 2023

Granulated and pressed beet sugar consists of 99.61–99.7 % sucrose, which is a source of energy for the body. However, this product does not contain other vital nutrients. The object of the study is the method of non-waste processing of elderberry fruits. Wild-growing fruits of black elder Sambucus nigra L were used as the subject of the study. Pre-cleaned elder fruits were frozen at a temperature of –18±2 °C, and after defrosting they were subjected to osmotic dehydration. For this, a 70 % sugar solution with a temperature of 50±5 °C was used (hydromodule 1). The duration of osmosis was 1 hour. The derivative product formed as a result of osmotic dehydration of elderberries (elderberry syrup) was used to enrich granulated sugar in an amount of 10 % by weight of sugar. After thorough mixing with the solution, the sugar was dried in a laboratory vacuum dryer. Anthocyanin dyes contained in the elderberries gave the sugar a bright pink color. The resulting product had a characteristic smell and taste of elderberry. The composition of sugar was studied by high-performance liquid chromatography. It was found that sugar enriched with an elderberry derivative contains 0.03±0.02 mg/100 g of vitamin C and 0.28±0.02 % flavonoids. This gives it certain antioxidant properties. In addition to sucrose, glucose (0.20±0.02) and fructose (0.27±0.02) were found in the product by the polarimetric method. Analysis of the amino acid spectrum of enriched sugar showed the presence of 18 amino acids (total amount of 5.547 mg/100 g), including all essential ones. The most found in enriched sugar, mg/100g: tyrosine (0.93), alanine (0.79), phenylalanine (0.752) and leucine (0.749). The results obtained indicate an increase in the biological value and additional functional properties of fortified sugar
Performance optimization of radiator engine parameters during hard conditions by control charts monitoring and evaluating
Authors: Abduljabbar Ali Fadhil , Oleiwi Bashra Kadhim , Sabry Ahmad H.
Published: September 2023

Recently, engine design and control systems have been developed using data-driven modeling techniques to specify the in-cylinder complicated combustion process. The cooling fan performance is highly influenced by several factors that are determined based on what is called (DOE) «design of experiments». These factors include blade tip clearance, pitch angle, distance from radiator. This work presents a method to improve a cooling fan performance of an engine by designing a Six Sigma technique using Control, Improve, Analyze, Measure, and Define (CIAMD). First, let’s assess the existing cooling fan performance and define its problem. Then, let’s specify the parameters that affect on fan performance to be optimized. Next, let’s conduct sensitivity analysis and evaluate manufacturing control of the developed cool Fan. The primary fan does not distribute air enough by the radiator to maintain the machine cool throughout hard circumstances. First, the work demonstrates how to develop an experiment to examine the influence of three performance elements: blade pitch angle, blade-tip clearance, and fan distance from the radiator. In order to improve the performance of the cooling fan, Box-Behnken design is adopted for testing quadratic (nonlinear) effects. It then indicates how to predict optimal quantities for every element, to produce a technique that makes airflows above the objective of 1486.6 m3/h when utilizing experimental measurements. Finally, it reveals how to operate simulations to confirm that this method creates airflow based on the specifications with more additional fans manufactured performance of 99.999 %. The results of S and X-bar control charts indicate that the manufacturing process is statistically under control
Wear-friction properties of friction pairs in disc-pad brakes
Authors: Kindrachuk Myroslav , Volchenko Dmytro , Fidrovska Nataliia , Dukhota Oleksandr , Zhuravlev Dmytro , Ostashuk Mykola , Porokhovskyi Yurii , Kharchenko Volodymyr
Published: September 2023

This paper reports data on the dynamic coefficient of friction and wear of materials of different types of friction pads and brake discs obtained from experimental research during braking under bench conditions. It was established that on the basis of the chemical composition of the materials of the friction pads with codes, in the temperature range of 100–450 °C with a step of 50 °C, the ratio of the maximum to the minimum wear of the disc varies from 6.0 to 10.0. The value of the disc wear ratio at 800 and 1000 brakings, respectively, in the temperature range of 100–250 °C and 100–450 °C was 7.6 and 14.0. This indicates that for pad materials of type A, B, C, and D under the second thermal regime, the linear wear of the working surfaces of the discs is greater than under the first thermal regime. And for the pad materials of type E and F, the wear of the discs was the same. This indicates that the use of traditional pads is characterized by a higher thermal tension of the disc brake friction pair; the absolute temperature values are in the unfavorable zone of 400–700 °C. That, in turn, could lead to both phase changes and thermal fatigue aging of materials and, as a result, to the deterioration of their tribological and thermophysical characteristics in operation. Thus, the implementation of the method of selecting pad components could improve the performance of disc brake devices of cars
Modernization of public administration in Eastern Europe in the context of implementation of digitalization
Authors: Shashyna Maryna , Gudz Petro , Pankova Alla , Benchak Olesia , Nemyrovska Oksana
Published: September 2023

The European Union is taking significant steps and supporting the efforts of member countries to improve the quality of public services. The requirements for the digitization of the latter, to improve communication links, highlight the relevance of the research topic by shifting the emphasis to the indirect assessment of the impact of technology transfer in the field of public administration on citizens' satisfaction with public services.
The object of research in this work is the public administration models of the selected countries. The research hypothesis assumes that membership in the EU has a significant impact on the efficiency of public services. Given this, there is an opportunity to transfer technologies, namely technologies of state management.
The countries of Eastern Europe were selected for the study. The work is based on the limitations inherent in the EU accession process.
For evaluation, three regression models were proposed for use in practice. These are a baseline model, a fixed-effects model to account for unobserved differences between countries, and a model with additional factors. The specified models were estimated using the least-square method (LSM). Based on the calculations of the first model, it was determined that the coefficient is statistically significant at the level of 1 %, which explains 12.6 % of the variation in the Index of Public Services (IPS). The results of the estimation of the second model make it possible to estimate IPS more accurately by 0.68. Based on the results of the calculation of the third model, the features of the influence of GDP and IPS were determined.
The results prove that the accession of Eastern European countries to the EU has a significant impact on the efficiency of public services. In this case, the possibility of technology transfer appears. Digitization of public administration is an innovative technology that allows bringing the citizen and the state closer together as efficiently as possible
Analysis of the impact of the railway allowance policy and the increase in fines for loaded trucks on the transfer of modes to rail transportation types
Authors: Yulfadli Zony , Arifin Muhammad Zainul , Djakfar Ludfi , Wicaksono Achmad , Nafis Moch. Abdillah
Published: September 2023

Currently, cargo trucks dominate logistics transportation, so the condition of the Pantura (Java North Coast Road) route is quite poor and often suffers severe damage even though it has been repaired. If there is no solution to the high volume of trucks on the coastal route, then the budget for repairing the coastal route will continue to increase, so researchers want to minimize the repair of the coastal route by switching modes from trucks to trains. One of the ways that previous researchers have found is one of the policies to be able to support mode shift by giving allowance to trains and increasing the fines of freight trucks. Therefore, researchers investigated many policies connected to the increase in fines for freight vehicles on the railway, as well as allowances. Analysis regarding the impact caused by the policy will be included. According to the SEM-PLS model, preferences are indirectly impacted by existing and perceptions, with existing and perceptions intermediary path scores with high preferences. The fines variable, on the other hand, is not a good preference for mode shift policies. Business merchants that have a positive perception of rail transportation offered a considerably greater response for rail transportation allowances. Therefore, they will seek to utilize the train. The perception variable influenced the amount of the proposed train allowance policy, but not the freight truck fines policy. Train allowance and truck fines policies can be utilized in conjunction with one another, depending on the logistical conditions in a given location. Because this is a logistics network in Indonesia, an archipelago country where trucks are more flexible if they want to travel between islands, train allowance is the best choice to support mode shift persuasively and maximize the potential of trains for travel within the island
Directions for improving the system of guarantees for participants in technology transfer
Authors: Davydiuk Oleksandr , Shvydka Tetiana , Shovkoplias Hanna , Senyk Yurii , Toporkova Maryna
Published: September 2023

The object of this study is to determine the essence, place, and role of the guarantees of technology transfer participants in the general system of innovative support measures and the formation of proposals for their improvement. General approaches to determining the essence of guarantees to participants in technology transfer as a special means of regulation were summarized. The experience of the World Trade Organization, the European Union, the Organization for International Cooperation and Development, and other countries has been analyzed regarding the methods and techniques by which these guarantees are provided. It has been established that the existing guarantee systems are not capable of fully meeting all the needs of technology transfer subjects. Guarantees to technology transfer participants were categorized in accordance with formalized criteria. The expediency of improving existing systems of guarantees to participants in the field of technology transfer has been substantiated, and the main directions of such improvement have been formed. A generalized definition of technology as a special object of relations regarding its transfer has been formed. It is proposed to unify the definition of technology at the international and national levels. The expediency of maintaining minimum guarantees of rights for technology developers regarding the amount of remuneration for the transfer of rights to technology and other essential conditions of its transfer was substantiated. Directions for improving the essential terms of technology transfer agreements were proposed.
The study is aimed at forming general theoretical foundations for improving the system of guarantees of participants in relations in the field of technology transfer. The generated research results can be used in the formation of international normative acts, acts of national legislation within the framework of regulation of these relations and serve as a basis for further scientific research on these issues
Revealing patterns of thermophysical parameters in the designed energy-saving structures for external fencing with air channels
Authors: Tagybayev Askhat , Zhangabay Nurlan , Suleimenov Ulanbator , Avramov Konstantin , Uspenskyi Borys , Umbitaliyev Altynsary
Published: September 2023

This study reports the design of new models of energy-saving enclosing structures with air channels. To calculate the thermophysical parameters of external fences, the Maple computer algebra system was used; the value of thermal resistance of structures was determined on the basis of a finite-element method in ANSYS. The result of the structure analysis showed that the value of thermal inertia of the traditional design and the average value of the thermal inertia of the developed structures were equal. However, the vibration amplitude of the designed enclosing structures was up to 20.72 % more efficient than the traditional one. At the same time, it was revealed that the air gaps did not affect the thermal inertia of the strucure, and its parameters depended only on the total thickness of the material. The analysis showed that the vapor permeability of the inner wall of the designed structures was equal to the traditional one. However, the value of resistance to vapor permeation of the fence of the developed structures was 3.21 % more effective. At the same time, the use of a closed air layer with a heat-reflecting screen makes it possible to shift the possible condensation zone towards the outer surface of the fence. An analysis of the check for the non-condensation of condensate in the ventilated air gap showed that condensate did not fall out in the ventilated air gap in all the considered schemes, and the results of the analysis by the air permeability value showed that all fencing schemes met the requirements for air permeability. Solving the problems of energy saving in construction through the development of new energy-efficient designs of enclosing structures help reduce the cost of thermal energy of buildings, which is an urgent task all over the world today
Development of a layer leveling technology that reduces the energy intensity of the processes of mixing and drying the fodder mass
Authors: Abilzhanuly Tokhtar , Iskakov Ruslan , Issenov Sultanbek , Kubentaeva Gulmira , Mamyrbayeva Indira , Abilzhanov Daniyar , Khaimuldinova Altyngul , Khamitov Nurakhmet
Published: September 2023

The object of the study is to determine the required power leveling device grinder-mixer-dryer. When operating equipment that combines grinding, mixing and drying in one device, there are such problems as energy intensity, the lack of calculation formulas for the theoretical determination of the required power, which makes it difficult to plan the energy intensity of the equipment. As a result of the research, a constructive-technological scheme of the grinder-mixer-dryer equipped with a leveling device was developed. The leveling device, rotating in opposite directions, moves the raised fodder mass to the end walls of the bunker. The operation of the screed tines eliminates excessive forage lift and speeds up the mixing process by moving the forage evenly across the entire width of the bin. The acceleration of the drying process of wet food is explained by the fact that new portions of wet food are constantly exposed to hot air. As a result of theoretical studies an analytical expression was obtained to determine the required power for the process of leveling the layer of forage mass and the required power for the process of leveling the layer of forage mass NТ=0.286 kW was determined. The results of the experimental determination of the required power for the process of leveling the forage mass layer showed the following value NЕ=0.273 kW, i.e. the difference between theoretical and actual value is only 4.76 %. This proves the reliability of the obtained analytical expression, which provides the definition of the main parameter of the grinder-mixer-dryer, i.e. required power leveling device. The proposed device and the resulting analytical expression can also be used in feed mixers
Intergovernmental Transfers and Economic Development: Spatial Panel Data Analysis in Brazilian States
Authors: Louzano João Paulo de Oliveira , Abrantes Luiz Antônio , Júnior Antônio Carlos Brunozi
Published: September 2023

Brazilian Fiscal Federalism makes intensive use of mechanisms of interjurisdictional transfers as strategies to combat poverty and regional differences, even while recognizing that, if poorly conceived, they can generate or aggravate existing regional demands and create externalities that affect the behavior of economic development of the recipients´ governments. In this sense, this paper aims to assess the effect of intergovernmental transfers from the State Participation Fund (FPE) on the economic development of Brazilian states. To this end, we employed spatial panel data models for the 27 Brazilian federative units from 1997 to 2016. The results show that when spatial dependence is controlled, the spatially lagged FPE has a negative effect on the GDP per capita of the states. This indicates that the criteria for determining the fund transfers must be expanded, considering other factors besides the sole equalization of horizontal imbalances between states.
Transferências Intergovernamentais e Desenvolvimento
Econômico: Uma Aplicação de Dados em Painel
Espacial para os Estados Brasileiros
Authors: Louzano João Paulo de Oliveira , Abrantes Luiz Antônio , Júnior Antônio Carlos Brunozi
Published: September 2023

O Federalismo Fiscal brasileiro faz uso intensivo de mecanismos de transferências intergovernamentais como estratégias de combate à pobreza e às diferenças regionais, mesmo reconhecendo que, se mal concebidos, podem gerar ou agravar as demandas regionais existentes e criar externalidades que afetam o comportamento do desenvolvimento econômico dos governos destinatários. Neste sentido, o objetivo deste estudo é avaliar o efeito das transferências intergovernamentais do Fundo de Participação dos Estados (FPE) sobre o desenvolvimento econômico dos estados brasileiros. Para esse fim, utilizou-se o Modelo Espacial de regressão em Dados em Painel para as 27 unidades federativas brasileiras no período de 1997 a 2016. Os resultados encontrados apontaram que ao controlar a dependência espacial, o FPE defasado espacialmente apresenta efeito negativo no PIB per capta dos estados, indicando que os critérios para a determinação do repasse do fundo devem ser ampliados considerando outros fatores além da equalização dos desequilíbrios horizontais entre os estados.
Conceptions of Hegemonic Masculinity as a Mediator of Sexism Directed at Women
Authors: Souza Charles V. B. S. , Lima Marcus E. O. , Ferreira Diogo C. S.
Published: September 2023

ABSTRACT This article analyses the relationship between masculine identity and ambivalent sexism, considering concepts of masculinity and culture of honour as mediating variables in this relationship. For this purpose, two studies were carried out with male participants from two regions of Brazil, Midwest (119 participants) and Northeast (117 participants). The results indicated that the concepts of masculinity are mediators of the relationship between masculine identity and ambivalent sexism. In contrast, the culture of honour did not remain significant in the mediation model. We conclude that the conception of masculinity based on hegemonic precepts of gender restates masculine superiority in detriment to the feminine, naturalizes sexism and violent behaviour for maintenance of masculine identity.
Concepções de Masculinidade Hegemônica como Mediadora do Sexismo Direcionado às Mulheres
Authors: Souza Charles V. B. S. , Lima Marcus E. O. , Ferreira Diogo C. S.
Published: September 2023

RESUMO Este artigo analisa a relação entre identidade masculina e sexismo ambivalente, tomando as concepções de masculinidade e a cultura da honra como variáveis mediadoras dessa relação. Para alcançar este objetivo, foram realizados dois estudos com participantes homens de duas regiões do país, Centro-oeste (119 participantes) e Nordeste (117 participantes). Os resultados indicaram que as concepções de masculinidade são mediadoras da relação entre identidade masculina e o sexismo ambivalente. Em contraste, a cultura da honra não se manteve significativa no modelo da mediação. Conclui-se que a concepção de uma masculinidade, baseada em preceitos hegemônicos de gênero, reafirma a superioridade masculina em detrimento à feminina, e naturaliza práticas de sexismo e comportamentos violentos em defesa da manutenção da identidade masculina.
O Impacto da Liderança nos Comportamentos de Aprendizagem das Equipes de Trabalho
Authors: Andrade-Vieira Rafaella de , Puente-Palacios Katia Elizabeth
Published: September 2023

Resumo As equipes têm se consolidado como unidades estratégicas nas organizações, assim como seus comportamentos de aprendizagem consolidam-se como um dos processos grupais mais efetivos para atingimento de resultados, com o líder exercendo papel fundamental. O objetivo deste estudo foi mensurar o papel preditivo dos estilos de liderança transacional e transformacional sobre os comportamentos de aprendizagem da equipe. A testagem foi realizada com 79 equipes, média de 10 pessoas por equipe, integrantes de seis empresas, que responderam instrumentos sobre estilo de liderança e comportamentos de aprendizagem, presencialmente. Os resultados, nível meso, revelaram que a liderança explica 18,4% dos comportamentos de aprendizagem. Depreende-se, então, a importância do líder para criação de ambiente propícios ao compartilhamento e aprendizagem de equipes.
PHENOL VERSUS LIDOCAINE IN OBTURATOR NERVE NEUROLYSIS FOR HIP JOINT PAIN
Authors: Crema Chiara Maria Tha , Magario Luiza Previato Trevisan , Siena Wilian Carlos , Favato Nicole Marques , Soeira Thabata Pasquini , Riberto Marcelo
Published: September 2023

ABSTRACT Introduction: For patients with severe hip osteoarthritis without clinical or socioeconomic conditions for total hip replacement, the obturator nerve block may serve for pain control and functional improvement. Either lidocaine or phenol are used, although the latter is expected to last longer. Objectives: Compare hip pain and functional performance after obturator nerve block with phenol versus lidocaine in patients with severe hip osteoarthritis who failed conservative treatment. Methodology: Forty-four patients scheduled for total arthroplasty due to severe osteoarthritis were randomized to the anterior branch of the obturator nerve with phenol (PG) or 1% lidocaine (LG), guided by electrical stimulation. Patients were evaluated with VAS, WOMAC, and pressure pain dolorimetry before the procedure and in the first and fourth months afterward. Results: Both groups improved significantly in pain control, pressure dolorimetry and functioning in the first month with reduced effect after 4 months, although the scores were still better than baseline. No statistical difference could be noticed between the groups. Severe adverse effects were not reported. Conclusion: Both lidocaine and phenol are equally effective and safe in the obturator nerve block for the control of pain and improvement in functioning in patients with severe hip OA. Evidence Level I; Randomized control trial, double-blind .
EPIDEMIOLOGY OF TRAUMATIC FRACTURES OF THE SPINE IN MARIO COVAS HOSPITAL BETWEEN 2015 AND 2020
Authors: Franco Cássio Bousada , Cruz Pedro Henrique Swinerd Coelho da , Moreno Caio Cesar Lucchese , Meneses Igor Oliveira , Santos Lara Guercio dos , Fontoura Junior Antonio Carlos , Brandão Thiago Kolachinski , Rodríguez Luciano Miller Reis , Yonezaki Adriano Masayuki
Published: September 2023

ABSTRACT Objectives: Analyze the epidemiological profile of patients with traumatic spinal fractures treated at Mário Covas State Hospital between 2015 and 2020. Methodology: This is an epidemiological, descriptive, retrospective, quantitative, comparative, medical records review-type study. Data collection was carried out between May and June 2022 at the Mário Covas State Hospital, the following characteristics being evaluated: age, sex, lesion topography, trauma mechanism, origin and treatment. Results: Data from 252 patients with traumatic spinal fractures were analyzed. The mean age of patients was 48.7 years, 74.7% were male. The mechanism of trauma from falls from a height and the topography of the lumbar vertebrae have a highly significant trend. The most affected vertebrae are lumbar L1, thoracic T12 and cervical C6. The crossing of the age group with the male sex is higher than expected in those over 60 years of age. The crossing of the age group with the trauma mechanism is higher than expected, between 20 and 39 years. Conclusion: There are few published works on the epidemiology of traumatic fractures of the spine, which points to the need for further studies on the subject. Level of Evidence III; Retrospective comparative study.
Rediscovery of presumably extinct species of Aristida in São Paulo State, Brazil
Authors: Sanglade Lucas Dias , Guaratini Maria Tereza Grombone , Kameyama Cíntia , Shirasuna Regina Tomoko , Boschi Raquel Stucchi , Matos Dalva Maria da Silva , Pivello Vânia Regina
Published: September 2023

Abstract Two species of Poaceae (Aristidoideae) Aristida ekmaniana Henrard and A. macrophylla Hack. considered “presumably extinct” in the Brazilian state of São Paulo were rediscovered during fieldwork. We hereby describe the location, ecosystem, and habitat type where the species were found. We suggest these grasses be removed from the list of extinct species and be placed in a category compatible with the current knowledge about their conservation status in the state of São Paulo.
A new species of Loricaria (Loricariidae: Loricariinae) from the upper Amazon River basin, Colombia
Authors: Londoño-Burbano Alejandro , Urbano-Bonilla Alexander , Thomas Matthew R. , Britto Marcelo R.
Published: September 2023

Abstract A new species of Loricaria is described from the upper Amazon River basin, Colombia. The new species is distinguished from its congeners primarily by having the dorsal portion of head with uniform black or dark brown coloration extending to three or four plates posterior to dorsal fin base, or with two longitudinal bands from tip of the snout to origin of dorsal fin; abdominal plates tightly joined and completely covering the median abdominal space and pectoral girdle; and pectoral and dorsal fins totally black or dark brown, without bands, spots, or blotches. The new species is further distinguished by plate counts, and body measurements. An analysis of genetic distances using the cytochrome oxidase c subunit 1 marker of the mitochondrial genome showed a clear differentiation between the new species and Loricaria cataphracta (5.8–7.6%), L. nickeriensis (5.7–6.1%), and L. simillima (2.7–7.0%). Species delimitation analyses were carried out, which further supported the new species as a divergent lineage within the genus. Fish species diversity of the upper Amazon River basin and taxonomic issues related to L. simillima are included as part of the discussion.
Sexual violence against women: an analysis of notifications in Espírito Santo, Brazil
Authors: Leite Franciéle Marabotti Costa , Pedroso Márcia Regina de Oliveira , Fiorotti Karina Fardin , Ferrari Beatriz , Paulucio Milene Diniz , Entringer Alexsandra Martins , Pampolim Gracielle
Published: September 2023

Abstract Objective To estimate the frequency and factors associated with sexual violence against women in Espírito Santo. Methods Cross-sectional study based on data reported between 2011 and 2018 in the Notifiable Diseases Information System. Multivariate analysis was conducted using Poisson regression, with robust variance. Results The frequency of sexual violence was 15.6%, being the prevalence higher among children; people without disabilities and/or disorders; urban areas residents; with a sole, male, unknown aggressor and without suspicion of alcohol use. The residence was the place with the highest occurrence and the character of repetition was present. Conclusion and implications for practice Sexual violence against women was highly prevalent in the state. The results reinforce the association of this condition with the characteristics of the victim, the aggressor and the event, evidencing the vulnerability of children and the domestic space as a scenario of high frequency of this harm.
Custos de implementação do cabotegravir injetável de longa duração como profilaxia ao HIV no Brasil
Authors: Paranhos Julia , Castilho Marta , Klein Helena Espellet , Miranda Caroline , Perin Fernanda Steiner , Passoni Patieene , Veloso Valdiléa G. , Grinsztejn Beatriz
Published: September 2023

Resumo O artigo descreve a estimação dos custos potenciais, sob a ótica do Ministério da Saúde (MS), da implementação do medicamento cabotegravir injetável de longa duração (CAB LA) no Sistema Único de Saúde, como alternativa para a prevenção à infecção pelo HIV e parte da estratégia nacional de prevenção combinada. Utilizou-se o instrumental analítico de cadeias de valor para elaborar a cadeia de valor do CAB LA com a identificação dos seus elos e atividades. Foram definidos três cenários de demanda com base em dados da população-alvo, variando em abrangência geográfica, e calculados os custos potenciais. A cadeia de valor do CAB LA é dividida em três grandes elos: produção, incorporação e assistência farmacêutica. Somente o último é considerado para o cálculo dos custos sob responsabilidade orçamentária do MS. Os custos potenciais são estimados em R$ 15 milhões, R$ 19 milhões e R$ 21,8 milhões, nos cenários de demanda baixa, média e alta, respectivamente. O estudo apresenta os custos potenciais para o MS, incluindo a necessidade de testes e procedimentos, de forma a orientar os gestores públicos e o próprio processo de incorporação. A ausência de preço do CAB LA é uma importante limitação para os resultados.
Avaliando o absenteísmo por doença nas instituições federais de ensino: análise dos dados de afastamento de servidores por licença médica nas universidades federais de Pelotas e Rio Grande
Authors: Gonçales Daliana de Ávila , Zanatti Christian Loret de Mola
Published: September 2023

Resumo Objetivo: Analisar as características dos afastamentos por doença entre servidores de duas universidades públicas do extremo sul do Brasil. Método: Foram analisados os afastamentos por doença, concedidos por licença médica ocorridos entre janeiro de 2015 a dezembro de 2019. As universidades possuem características semelhantes no que se refere a localização, contingente de servidores e alunos atendidos. Os indicadores foram baseados no número de licenças apresentadas, número de trabalhadores em licença e dias de trabalho perdidos. Foram analisados os afastamentos por categoria profissional, faixa etária, gênero, local de trabalho e doença que levou ao afastamento. Resultados: Ambas as universidades apresentam perfil semelhante de adoecimento dos servidores, sendo os transtornos psiquiátricos e as doenças osteomusculares as mais prevalentes. As categorias profissionais mais acometidas por doença são os profissionais da área da saúde e educação. O absenteísmo é mais presente entre as mulheres. Conclusão: Os resultados do estudo apontam a necessidade de discutir estratégias que resultem em mudanças na forma de organização do trabalho, promoção à saúde e qualidade de vida dos trabalhadores, visando minimizar os impactos que o adoecimento traz aos trabalhadores e às instituições.
Práticas integrativas e complementares na Atenção Primária à Saúde: percepções dos profissionais sobre a oferta dos serviços na região metropolitana de Goiânia
Authors: Silva Pedro Henrique Brito da , Oliveira Ellen Synthia Fernandes de
Published: September 2023

Resumo Embora políticas públicas vigentes em âmbito federal e estadual instituam as Práticas Integrativas e Complementares no rol dos serviços ofertados na Atenção Primária à Saúde, ainda não sabemos como elas são implementadas na região metropolitana de Goiânia. Nesse sentido, este estudo objetiva compreender as percepções dos profissionais de saúde que ofertam Práticas Integrativas e Complementares sobre a utilização desses serviços de Atenção Primária à Saúde na região metropolitana de Goiânia. Trata-se de um estudo descritivo, exploratório, com abordagem qualitativa. Entrevistas semiestruturadas foram realizadas com 20 profissionais e, em seguida, transcritas e tratadas com a análise de conteúdo temática. Compreendemos que a oferta das Práticas Integrativas e Complementares depende dos profissionais, os quais têm sofrido com a falta de apoio da gestão e desarticulação do seu trabalho perante a equipe, bem como com a ausência de infraestrutura adequada e despadronização do registro nos prontuários dos usuários. Concluímos que a oferta de Práticas Integrativas e Complementares tem sofrido as consequências de uma integração parcial e precária na Atenção Primária à Saúde.
Ambiência e saúde mental na privação de liberdade infanto-juvenil
Authors: Robert Cassiano , Stefanello Sabrina , Ditterich Rafael Gomes , Santos Deivisson Vianna Dantas dos
Published: September 2023

Resumo Este artigo descreve as percepções dos(as) trabalhadores(as) quanto às possíveis influências da localização, distribuição e estrutura física de sete unidades socioeducativas de internação paranaenses (Censes) destinadas a adolescentes em conflito com a lei, oferta de atividades e sua relação com os processos de trabalho e o cotidiano institucional. Trata-se de um estudo qualitativo, transversal e de cunho exploratório-descritivo. As metodologias envolveram entrevistas semiestruturadas, grupos focais e observação participante. Participaram dos grupos focais 79 trabalhadores(as), sendo outros(as) 08 entrevistados(as), em unidades de grande e pequeno porte, destinadas ao público feminino e masculino. Sobressaiu-se nesta pesquisa a relevância da análise da ambiência nos Censes, sendo a limitação no engajamento dos(as) adolescentes em ocupações influenciada por questões estruturais e de maior distância as unidades dos centros urbanos resultam em uma conformação de cuidado mais próxima da lógica segregadora. A organização do espaço e do sentido das atividades ofertadas influenciam também a saúde mental dos adolescentes.
"A gente só quer ser atendida com profissionalismo”: experiências de pessoas trans sobre atendimentos de saúde em Curitiba-PR, Brasil
Authors: Borgert Vivian , Stefanello Sabrina , Signorelli Marcos Claudio , Santos Deivisson Vianna Dantas dos
Published: September 2023

Resumo Introdução: Pessoas trans pertencem a um grupo marginalizado e vulnerável na sociedade e sofrem com dificuldades no atendimento no sistema de saúde. Este estudo objetivou compreender o processo saúde-doença-cuidado dessas pessoas e seu acesso aos serviços de saúde na cidade de Curitiba-PR, Brasil. Metodologia: Pesquisa qualitativa hermenêutica, por meio de dez entrevistas semiestruturadas com pessoas trans de Curitiba, que foram gravadas, transcritas e codificadas. Apreenderam-se as experiências e percepções sobre a saúde desses sujeitos e suas trajetórias de atendimento no sistema de saúde, analisando-se pela perspectiva hermenêutica. Resultados: As narrativas mostram que ainda há muito despreparo dos profissionais da saúde, e isso gera situações de desconforto à população trans. Essas experiências moldam a conduta dessa população frente aos serviços de saúde, muitas vezes evitando-os. Toda essa dificuldade no acesso à saúde gera questões de saúde mental e sentimentos de ideação suicida. Conclusão: O estudo evidenciou a falta de reconhecimento e de aceitação da forma que pessoas trans se expressam e a existência de uma série de ações discriminatórias por parte dos trabalhadores da saúde. A compreensão dessas dificuldades aponta para o que pode ser modificado para garantir um acesso à saúde de maior qualidade para essa população.
Digital food delivery platforms: working conditions and health risks
Authors: Oliveira Pamela Tamara Gomes de , Junges José Roque
Published: September 2023

Abstract The social distancing brought about by the COVID-19 pandemic sped up a process that was already underway: the emergence of the platform economy. One of the applications present in this process was for the delivery of food by motorbike couriers, causing a radical transformation of working conditions that requires investigation. The objective of this study was to discuss those conditions and the risks that they pose to the health of workers. A group of 14 food delivery couriers were interviewed and their statements were recorded and transcribed for thematic analysis, resulting in two main findings: precarious employment conditions and health vulnerabilities. The platform promises independence and autonomy regarding work, but at the same time creates insecurity, failing to ensure work protection or financial stability, as it does not guarantee working conditions. On the other hand, such precarious work generates health risks. This situation requires a discussion on the legal protection of the labor rights and health protection of these workers.
KIAA1429 Promotes Nasopharyngeal Carcinoma Progression by Mediating m6A Modification of PTGS2
Authors: Wu Lingling , Zhou Yuanhong , Fu Jun
Published: September 2023

Emerging evidence suggests that dysregulation of a N6-methyladenosine (m6A) methyltransferase KIAA1429 participates in the pathogenesis of multiple cancers except for nasopharyngeal carcinoma (NPC). This study is aimed to explore the function of KIAA1429 in NPC progression. The Cancer Genome Atlas (TCGA) and Gene Expression Omnibus (GEO) datasets were used to confirm the mRNA expression in NPC by bioinformatic analysis. The levels of KIAA1429 and PTGS2 was detected by quantitative reverse transcription polymerase chain reaction and Western blotting. To investigate the effects of KIAA1429/PTGS2 knockdown or overexpression vectors on NPC cell malignancy, cell and animal experiments were performed. Finally, MeRIP and mRNA stability assays were used to verify the m6A modification and mRNA stability, respectively. KIAA1429 was upregulated in NPC tissues and cells. After transfecting KIAA1429 knockdown or overexpression vectors in NPC cells, we proved that KIAA1429 overexpression promoted proliferation, migration, invasion, and tumor growth, whereas KIAA1429 knockdown showed the opposite effect. Our results also indicated that KIAA1429 mediated m6A modification of PTGS2, enhancing PTGS2 mRNA stability in NPC cells. In addition, PTGS2 could also regulate the effects of KIAA1429 on NPC cell malignancy. This study confirmed the oncogenic function of KIAA1429 in NPC through m6A-modification of PTGS2, suggesting that targeting KIAA1429-mediated m6A modification of PTGS2 might provide a new therapeutic strategy for NPC.
Th17 Cells: Orchestrators of Mucosal Inflammation and Potential Therapeutic Targets
Authors: Iraji Dorsa , Oftedal Bergithe E. , Wolff Anette S. B.
Published: September 2023

T helper 17 (Th17) cells represent a specialized subgroup of effector CD4+ T cells known for their role in provoking neutrophil-driven tissue inflammation, particularly within mucosal tissues. Although they are pivotal for defending the host against extracellular bacteria and fungi, they have also been associated with development of various T cell-mediated inflammatory conditions, autoimmune diseases, and even cancer. Notably, Th17 cells exhibit a dual nature, with different Th17 cell subtypes showcasing distinct effector functions and varying capacities to incite autoimmune tissue inflammation. Furthermore, Th17 cells exhibit significant plasticity, which carries important functional implications, both in terms of their expression of cytokines typically associated with other effector T cell subsets and in their interactions with regulatory CD4+ T cells. The intricate balance of Th17 cytokines can also be a double-edged sword in inflammation, autoimmunity, and cancer. Within this article, we delve into the mechanisms that govern the differentiation, function, and adaptability of Th17 cells. We culminate with an exploration of therapeutic potentials in harnessing the power of Th17 cells and their cytokines. Targeted interventions to modulate Th17 responses are emerging as promising strategies for autoimmunity, inflammation, and cancer treatment. By precisely fine-tuning Th17-related pathways, we may unlock new avenues for personalized therapeutic approaches, aiming to restore immune balance, alleviate the challenges of these disorders, and ultimately enhance the quality of life for individuals affected by them.
Voluntary Delisting of Russian Companies at Different Stages of Corporate Life Cycle
Authors: Кизко Илья , Черкасова Виктория , Grigorieva Svetlana
Published: September 2023

Nowadays, the number of companies leaving the stock exchange is steadily increasing. Researchers and practitioners continue to actively discuss the reasons for voluntary delisting and explore the factors that influence the probability of it. However, the results of existing studies are heterogeneous and inconclusive, indicating the need for further research. Thispaper continues the line of research on the determinants of voluntary delisting by studying the delisting of Russian companies. Unlike previous studies, we identify and compare the factors that influence the decision to delist at different stages of the organization’s life cycle. We argue that delisting factors, although specific to each company, should remain similar for firms at the same stage of development. The company-related factors that we test include investment expenditures, profitability, stock volatility and book-to-market ratio. The study is based on a sample of 162 public Russian companies traded on the Moscow Exchange, of which 75 delisted between 2011 and 2019. The Bloomberg database was used to generate the sample of companies. Using the panel probit regression model, we found that firms with greater investment expenditures are less likely to delist at the Introduction and more likely at the Maturity and Decline stages. The results of our research also show that firm stock volatility had a positive effect on the delisting probability of Russian firms at all stages of theirlife cycle, except for the Introduction stage. Finally, we demonstrate that companies at the Introduction and Growth stages are more likely to leave the stock exchange if they have a greater book-to-market ratio. The results of our study can be used by financial analysts and academics to analyze the probability of delisting of public companies at different life cycle stages.
Dynamic Maintenance of Solvency of the Russian Insurance Companies: the Evidence from Russian Insurers
Authors: Tsvetkova Lyudmila
Published: September 2023

The Russian economy is facing sanctions pressure, resulting in weakening business relations with foreign insurers. Medium-sized insurance companies, targeting regional economic entities, play a crucial role in the insurance market. To improve the efficiency of Russian insurance, the number of medium-sized companies operating in regional markets must increase. To regulate their capitalization, special conditions must be developed, focusing on capital adequacy requirements and financial stability parameters. While earlier research has examined what factors might impact profitability growth, the investment income factor in maintaining corporate financial stability has been underexplored. This paper aims toexplore conditions for improving insurers' financial soundness through growth of a company's internal capitalization. Medium-sized insurance companies often struggle to meet regulators' minimum capital requirements (a core variable linked with companies’ capitalization) leading to potential market shrinkage. Our hypothesis is that it possible to create a financial reserve that meets the regulator’s increasing equity requirements without raising additional external investments. This study examined the factors which impacted the growth of medium-sized insurance companies operating in the emerging markets. Operating results of seven randomly selected medium-sized insurance companies in 2014–2022 were used forthe analysis. The paper suggests that institutionalization of insurance companies' capitalization is crucial to minimize the risk of capital inadequacy. The study contributes to our understanding of how medium-sized insurance companies can be governed and suggests a way to increase their capitalization.
L-Leucine based supramolecular gelator v1
Authors: Kusanur Raviraj
Published: September 2023

Gels are basically made up of polymers which, are either cross-linked or entangled in order to form a solid-like network. A new class of gels known as the supramolecular gels was formulated when small molecules self-assemble through various non-covalent interactions. These weak non-covalent interactions help in preventing the supramolecular gels from time-varying changes in their material properties. They self-assemble in order to form a micro-scale or nano-scale fibrillar network which, helps in immobilizing a large volume of solvents. This particular L-Leucine-based supramolecular gelator is composed of three main components that is, a hydrophobic tail, gluconic acid, and L-Leucine amino acid. It was tested for it's gelation properties using various solvents. Based on the observations made, we have concluded that liquid paraffin when used as a solvent for gelation had shown the best gelation properties by being stable and firm.