bluuebunny/crossref_metadata_2025 huggingface dataset:
Mulheres na cirurgia: as especialidades cirúrgicas acompanham a feminização da medicina no Brasil?
Authors: Almeida Nyara Rodrigues Conde de , Bentes Lívia Guerreiro de Barros , Aranha Maria Fernanda de Almeida Cavalcante , Lemos Rafael Silva , Santos Deivid Ramos dos , Yasojima Edson Yuzur
Published: November 2023

RESUMO Introdução: historicamente, as especialidades médicas cirúrgicas são, majoritariamente, masculinas, cenário o qual, nos últimos anos, passa por mudanças. Nesse sentido, apesar da relevância do crescimento da participação feminina na carreira médica, pouco se debate sobre a distribuição entre sexos das principais especialidades médicas cirúrgicas no país. Objetivo: discutir o processo de feminização nas especialidades cirúrgicas no Brasil ao longo dos últimos anos, traçando um perfil de distribuição dessas especialidades. Métodos: Trata-se de um estudo retrospectivo e transversal com dados secundários oriundos dos Censos de Demografia Médica no Brasil dos anos de 2011, 2013, 2015, 2018, 2020 e 2023, incluindo as especialidades cirúrgicas:Urologia, Ortopedia e Traumatologia, Cirurgia Torácica, Neurocirurgia, Cirurgia do Aparelho Digestivo, Cirurgia Cardiovascular, Cirurgia da Mão, Cirurgia Geral, Cirurgia de Cabeça e Pescoço, Cirurgia Vascular, Cirurgia Plástica, Oftalmologia, Coloproctologia, Otorrinolaringologia, Cirurgia Pediátrica e Ginecologia e Obstetrícia. Resultados: O sexo masculino prevalece em números, dentre as especialidades cirúrgicas, porém, com menor taxa de crescimento em comparação ao sexo feminino. Especialidades como a urologia, ortopedia e traumatologia e neurocirurgia são majoritariamente masculinas, enquanto a ginecologia e obstetrícia, feminina. Conclusão: evidencia-se que a participação feminina na área médica cirúrgica aumentou significativamente ao longo dos últimos anos.
INFÂNCIA E JUSTIÇA ESPACIAL: DESIGUALDADES INTER E INTRABAIRROS NO USO DA CIDADE POR CRIANÇAS DA REDE MUNICIPAL DE ENSINO DE CURITIBA
Authors: FERREIRA VALÉRIA MILENA ROHRICH , FERNANDES SONIA MARIA
Published: November 2023

RESUMO: Analisa-se aqui se há desigualdade nas experiências espaciais de crianças a depender do local da cidade e do bairro onde moram. Trata-se de uma pesquisa quantitativa em que foram analisados 1060 questionários respondidos por famílias de crianças de 27 escolas municipais de Curitiba, distribuídas nas 9 regionais da cidade, à época. Os dados foram analisados a partir de autores da sociologia, da sociologia urbana, da infância e da geografia. Verificou-se que crianças moradoras da região norte-central da cidade e de regiões centrais dos bairros tiveram maior acesso a locais consolidados de lazer e cultura, pois moravam próximas desses locais ou tinham maior facilidade de se locomover até eles (dentre outras questões relacionadas à classe, gênero, raça, tempo de moradia no bairro, origem geográfica das famílias), demonstrando tanto um “efeito residência” gerador de oportunidades quanto uma mobilidade espacial que, como capital, impulsionava experiências diversificadas na cidade. Já para as crianças que moravam na parte pobre e periférica do bairro e, ainda mais, se eram moradoras do sul e do extremo sul da cidade (quando se cruza dados interbairros com intrabairros), o bairro não se apresentou como um recurso, mas sim como uma restrição, e a mobilidade espacial pareceu ser um capital urbano escasso. A configuração foi a de uma não mistura social entre crianças moradoras de diferentes partes do bairro e da cidade. A cidade se mostrou injusta espacialmente, e o bairro apresentou-se modelar, ensinando posições e status superior a algumas crianças e subalternidade e sedentarismo para outras.
ON METHODOLOGY AND METHODS FOR ANALYSING CLASSROOM DISCURSIVE INTERACTION: A DISCUSSION BETWEEN QUANTITATIVE AND QUALITATIVE APPROACHES
Authors: LAGO LEONARDO
Published: November 2023

ABSTRACT: This article presents a theoretical work aiming to discuss methodologies and methods in educational research, particularly those that analyse classroom discursive interactions. The first part examines the two main research paradigms and their ontological and epistemological bases: positivism and interpretivism. Next, two methods for analysing discursive interactions are presented and discussed, one for each paradigm. Systematic coding - within the quantitative context - is indicated to treat data from large samples, to describe general patterns, and to statistical comparisons or temporal analyses by transforming the discourse into variables. The method is applied in a set of 42 episodes of group dialogue. The results are discussed in light of the nature of the research questions, showing what types of statistical tests can be performed. Within the interpretivist paradigm, sociocultural discourse analysis is presented as an example of a qualitative method applied to excerpts from classroom dialogues. The main finding is the identification of typologies that describe how teachers and students construct scientific explanations. The final part discusses some possibilities and limits of each method. The conclusion defends that both are complementary for advancing knowledge in the educational field.
Validation of a food frequency questionnaire for assessing the intake of food groups and nutrients in adults
Authors: Muniz Stephanie Camila Ribeiro Silva , Sanches Gabrielle Floriano , Barbieri Marco Antonio , Silva Antônio Augusto Moura da , França Ana Karina Teixeira da Cunha , Sartorelli Daniela Saes
Published: November 2023

ABSTRACT Objective: To validate a food frequency questionnaire used to assess food consumption among adults in a Brazilian cohort. Methods: Cross-sectional study conducted on 100 adults. Food intake was assessed by the food frequency questionnaire and by two 24-hour recalls. Validation was performed for nutrients (n=19) and food groups (n=21). Results: Moderate deattenuated Pearson’s correlation coefficients (>0.4) were observed for the consumption of dairy products, breads and crackers, rice, pasta and tubers, leafy vegetables, other vegetables, fats, sweetened drinks, sandwiches and savory snacks, and nuts, and for the following nutrients (deattenuated and adjusted for energy intake): fiber, calcium, and vitamins A, B2, and C. Based on almost all food groups and nutrients assessed, ≥70% of the individuals were classified into the same or adjacent quartile for both methods, except for red and pork meat, snacks, nuts, phosphorus, potassium, and vitamin B3. The food groups and nutrients with fair kappa agreement (>0.2) were: dairy products, other vegetables, sweetened drinks, breakfast cereals, energy, carbohydrate, iron, and vitamin A. Conclusion: The food frequency questionnaire has proven useful for estimating the intake of some nutrients and food groups of the subjects evaluated. Only the intake of red and pork meat, snacks, nuts, vitamin B3, phosphorus and potassium were estimated with less accuracy.
ENTRE IBERÊ CAMARGO E MARIA LÍDIA MAGLIANI: APROXIMAÇÕES COM O TRÁGICO NA EXPERIÊNCIA PSICANALÍTICA
Authors: DALCIN NETTO GIOVANA , DAMICO JOSÉ GERALDO SOARES
Published: November 2023

RESUMO: Este trabalho parte de algumas obras de arte dos artistas gaúchos Iberê Camargo e Maria Lídia Magliani para se aproximar da dimensão trágica da experiência psicanalítica. No movimento de torção entre o campo das artes e da psicanálise, ainda articulamos este trabalho com a tragédia grega de Antígona, obra literária na qual Lacan se apoiou para pensar a ética psicanalítica. Por fim, o artigo ressalta que a experiência trágica na psicanálise se aproxima do fim da análise, na medida em que introduz a possibilidade da queda do pai, ultrapassando o Outro da linguagem.
HÁ-UM, O SUJEITO E A SEXUAÇÃO
Authors: SANTOS LUIZ FELLIPE DE ALMEIDA , ESTEVÃO IVAN RAMOS
Published: November 2023

RESUMO: O artigo visa demonstrar como o aforismo Há-um, forjado e trabalhado por Jacques Lacan notadamente nos seminários O saber do psicanalista e ...ou pior, entre 1971 e 1972, fundamenta a teoria da sexuação, promovida nessa época. Discutimos como as rupturas epistemológicas implicadas no Um desembocam na escrita da impossibilidade de proporção sexual para o ser falante. O aforismo se desdobra, portanto, em: não há relação do Um com o Ser, do Um com o Outro, do Um com o Outro sexo, isto é, não há relação sexual.
High-grain diet and the inclusion of residual frying oil in the feeding of lambs
Authors: Batista Nayane Valente , Melo Vitor Lucas de Lima , Silva Nicolas Lima , Oliveira Palloma Vitória Carlos de , Santos Nayanne de Oliveira dos , Silva Elisomar André da , Fernandes Marília Celeste Tavares , Lima Patrícia de Oliveira
Published: November 2023

Abstract In animal production, a large part of financial resources is destined to animal feed, so the use of low-cost diets with maximum production efficiency is crucial. The present study evaluated the effects of a high-grain diet and the use of residual frying oil on the productive performance and carcass characteristics of lambs. Fifteen lambs were distributed into three groups in a completely randomized design in which they were fed a control diet, a high-grain diet, or a diet with the inclusion of residual frying oil, for 40 days. There was no difference (P > 0.05) between the control and frying-oil diets regarding the daily intakes of dry matter, crude protein, mineral matter, neutral detergent fiber, or total carbohydrates. The high-grain diet reduced the intake of dry matter and nutrients, negatively affecting weight gain. The highest means for final weight, total weight, and daily weight gain were obtained with the control diet and the diet containing residual oil, which did not differ from each other (P> 0.05). Slaughter weight and hot and cold carcass weights decreased with the high-grain diet. There was an effect (P < 0.05) of frying oil inclusion on the carcass characteristics of the lambs. The diets did not affect (P > 0.05) carcass yields. The animals on the high-grain diet showed unsatisfactory production performance, with impaired carcass characteristics. The inclusion of frying oil led to greater weight gain as well as more attractive carcass characteristics, making it the most viable alternative in this research.
Parâmetros genéticos para desempenho de salto em Cavalos Brasileiro de Hipismo
Authors: Medeiros Bethânia Rocha , Garbade Petra , Peripolli Vanessa , Dias Laila Talarico , McManus Concepta Margaret
Published: November 2023

Resumo Este estudo estimou parâmetros genéticos para avaliações de salto em cavalos da raça Brasileiro de Hipismo, buscando características passíveis de serem avaliadas precocemente e que estejam geneticamente correlacionadas (ϒg) com resultados posteriores em competições esportivas. Para os resultados de competições de salto duas características foram consideradas: Classificação (CLASS) do animal (considerando alturas dos obstáculos; número de competidores; tipo de competição: regional, nacional ou internacional) e escore final (SCOREF) (considerando peso da competição, altura dos obstáculos e escore para a colocação e tipo de evento). Herdabilidades foram baixas (0,00 e 0,07 para CLASS e SCOREF, respectivamente) quando o banco de dados foi considerado como um todo. Foram mais elevadas quando apenas a categoria Cavalos Novos foi considerada (0,09 e 0,67, respectivamente). Correlações genéticas entre estas características e avaliações funcionais subjetivas (em escala de 0 a 10) tomadas em aprovações de garanhões para reprodução mostraram relação genética favorável à seleção indireta entre Potência e resultados de competição (-0,84 para CLASS e 1,00 para SCOREF). Salto também apresentou correlação favorável com SCOREF (0,53), porém desfavorável com CLASS (1,00). Considerando a importância do Temperamento e ausência de correlações genéticas desfavoráveis desta com resultados de competição, conclui-se que esta característica deve ser mantida entre os objetivos de seleção de cavalos Brasileiro de Hipismo. Sugestões de estudos genéticos futuros para a raça e para possíveis modificações no regulamento das avaliações, foram feitas visando a melhoria da qualidade dos dados.
Glyphosate induced hormesis in Urochloa cultivars with sequential application
Authors: Codognoto Luciane da Cunha , Faria Glaucia Amorim , Maltoni Katia Luciene , Conde Thassiane Telles
Published: November 2023

Abstract Glyphosate is the most widely used herbicide and is responsible for a significant technical/productive advance in world agriculture. Glyphosate drift after its application to control weeds in agricultural fields can stimulate growth and/or productive performance in non-target plants, located adjacent to the treatment, characterizing the hormesis effect. However, the hormesis effect of glyphosate may be different depending on the plant species, its stage of development, and the applied dose. Considering the stimulus of forage biomass production for animal feed, this study aimed to assess the hormesis effect by successive applications of low glyphosate doses to cultivars of the genus Urochloa. The shoot and root productive responses of three grass cultivars (Urochloa brizantha cv. Marandu, U. brizantha cv. Piatã, and U. ruziziensis cv. Ruziziensis) were assessed in pots through leaf applications of subdoses of the acid equivalent (ae) of glyphosate (5.40, 10.80, 21.60, 43.20, and 86.40 g ae ha-1) and a control (no glyphosate application). Four sequential harvests, conducted with a frequency of 21 days in a completely randomized design and a 6 x 3 x 4 factorial arrangement, with three replications, were assessed. Doses equal to or higher than 43.20 g ae ha-1 of glyphosate, applied in two sequential applications impaired the biomass production of the assessed forages. Ruziziensis was the most susceptible cultivar to the phytotoxic effect. Sequential applications of the subdoses 5.40 and 10.80 g ae ha-1 of glyphosate characterized the hormesis effect, promoting the shoot and root biomass production of the forage plants U. brizantha cv. Marandu, U. brizantha cv. Piatã, and U. ruziziensis cv. Ruziziensis.
Process of building an entrepreneurial career in Nursing
Authors: Silva Vinícius Luís da , Spigolon Dandara Novakowski , Peruzzo Hellen Emília , Costa Maria Antonia Ramos , Souza Verusca Soares de , Christinelli Heloá Costa Borim , Maran Edilaine , Borim Maria Luiza Costa
Published: November 2023

ABSTRACT Objective: To learn about the experiences of nurse entrepreneurs in building their careers and business trajectories. Method: A descriptive and exploratory, qualitative study carried out with nurse entrepreneurs, recruited using the snowball technique. Interviews were conducted via Skype and audio-recorded between June and July 2021, which were transcribed and subjected to content analysis. Results: 15 nurses participated. Three thematic axes were identified: “Entrepreneurship in nursing with the use of technologies”, which presented niches of activity and the use of technologies; “Desire to innovate even with fear of the new”, which reports feelings and motivations related to entrepreneurship, especially innovation; and “What nurses need to know before starting a business”, which presents the risks and benefits of entrepreneurship, as well as the skills needed by entrepreneurs. Conclusion: The entrepreneurial experience presents challenges for nurses. Thus, encouraging knowledge about entrepreneurship makes it possible to strengthen autonomy and gain new opportunities in nursing.
Continuity of care for patients recovering from Covid-19 under the angle of clinical management principles
Authors: Mendes Vanessa Alves , Costa Maria Fernanda Baeta Neves Alonso da , Martins Anna Flávia da Silva Almeida , Mocheuti Karina Nonato , Ferreira Gímerson Erick , Ribeiro Mara Regina Rosa
Published: November 2023

ABSTRACT Objective: To analyze the strategies used by nurses at a university hospital to ensure continuity of care at hospital discharge for patients recovered from Covid-19, under the angle of the principles of clinical management. Method: A descriptive study with a qualitative approach, carried out with seven nurses on duty in the medical and gynecology/obstetrics clinics of a university hospital in the Midwest region of the country. The data was processed using IRaMuTeQ software and analyzed using Content Analysis. Results: The data resulted in five classes by the Descending Hierarchical Classification (DHC), which made up two categories: “Practices developed by nurses for continuity of care in the hospital environment” and “Continuity of care during discharge to the home”. The strategies used by the nurses were: daily care systematized in the nursing process and guidance both for preparation and for the day of discharge. Conclusion: The absence of an institutional protocol for safe discharge, as well as the position of nurse coordinator to manage the discharge of patients with Covid-19, can compromise the continuity of care for these patients.
Continuidade do cuidado a pacientes recuperados da Covid-19 à luz dos princípios da gestão da clínica
Authors: Mendes Vanessa Alves , Costa Maria Fernanda Baeta Neves Alonso da , Martins Anna Flávia da Silva Almeida , Mocheuti Karina Nonato , Ferreira Gímerson Erick , Ribeiro Mara Regina Rosa
Published: November 2023

RESUMO Objetivo: Analisar as estratégias utilizadas por enfermeiros de um hospital universitário para garantir continuidade do cuidado na alta hospitalar de pacientes recuperados da Covid-19, à luz dos princípios da gestão da clínica. Método: Estudo descritivo de abordagem qualitativa, realizado com sete enfermeiros plantonistas das clínicas médicas e ginecologia/obstetrícia de um hospital universitário da região centro-oeste do país. Os dados foram processados pelo software IRaMuTeQ e analisados pelo método de Análise de Conteúdo. Resultados: Os dados resultaram em cinco classes pela Classificação Hierárquica Descendente (CHD), que compôs duas categorias: “Práticas desenvolvidas pelos enfermeiros para a continuidade do cuidado no ambiente hospitalar” e “Continuidade do cuidado durante a alta hospitalar para o domicílio”. As estratégias utilizadas pelos enfermeiros foram: cuidados diários sistematizados no processo de enfermagem e orientações tanto para o preparo quanto para o dia de alta. Conclusão: A ausência de protocolo institucional para alta segura, bem como o cargo de enfermeira coordenadora para gerenciar as altas dos pacientes com Covid-19 podem comprometer a continuidade do cuidado a esses pacientes.
Construction and validation of nursing diagnoses for premature newborns
Authors: Querido Danielle Lemos , Christoffel Marialda Moreira , Almeida Viviane Saraiva de , Esteves Ana Paula Vieira dos Santos , Menezes Harlon França de , Silva Halene Cristina Dias de Armada e , Camacho Alessandra Conceição Leite Funchal
Published: November 2023

ABSTRACT Objective: To build and validate nursing diagnoses based on the International Classification of Nursing Practice (ICNP®) for premature newborns admitted to the Neonatal Intensive Care Unit. Method: Methodological study based on the Brazilian method for developing subsets: use of specialized nursing language terms, construction of diagnostic statements and content validation of the statements by 40 specialist nurses. Those with a Content Validity Index (CVI) ≥ 0.80, organized according to Wanda Horta’s basic human needs theory, were considered valid. Results: 146 nursing diagnosis statements were constructed and 145 (93.3%) diagnoses were validated, with a predominance of the human need for cutaneous-mucosal integrity. Conclusion: The specificity of neonatal care is evident when these diagnoses are presented and validated in order to support nurses in their clinical reasoning and decision-making.
Prevalence and Psychosocial Risk Factors associated with mental disorders during pregnancy
Authors: Azambuja Carolina Viecili , Renner Anelise Meurer , Bonatti Adriane , Arteche Adriane Xavier
Published: November 2023

Abstract Objective Studies evidence a high prevalence of mental disorders in pregnant women, which interfere in women’s health, interpersonal relationships, baby care and, consequently, in child development. The research sought to identify risk and protective psychosocial factors of mental disorders during pregnancy. Method A total of 153 third trimester pregnant women participated in a quasi-experimental, quantitative and cross-sectional study. The instruments used were questionnaires and interviews. Frequency, descriptive and regression analysis were performed. Results The most significant risk factors for mental disorders during pregnancy were lack of confidence, childhood trauma, stressful life events, and previous depression. Protective factors included good marital relationship. The most prevalent mental disorders were depression and anxiety. Conclusion Preventive actions and interventions that cover the psychosocial factors involved in the development of mental disorders in pregnant women are important.
Redressal of Sexual Harassment at the Workplace: A Study of Legal Educational Institutions in Ahmedabad, Gujarat
Authors: Upadhyay Vikash Kumar , Trivedi Vikas , Molia Tarkesh
Published: November 2023

Abstract The new-age India has been characterized by the participation of a higher number of women in the labour force. Unfortunately, the issue of sexual harassment in the workplace has also risen. The Sexual Harassment of Women at Workplace (Prevention, Prohibition and Redressal) Act of 2013 is a significant piece of legislation aimed at preventing gender-based discrimination in the workplace. Following the enactment of this law, the University Grants Commission (UGC) issued the UGC (Prevention, Prohibition and Redressal of Sexual Harassment of Women Employees and Students in Higher Educational Institutions) Regulations of 2015. This paper aims to study the existing legal framework for addressing the issue of sexual harassment in India. It analyses the state of implementation of UGC regulations at legal education institutions in Ahmedabad, Gujarat. The study involves a combination of primary and secondary data sourced via the UGC’s online portal and a survey conducted among students at one law school in Ahmedabad. The results show poor compliance with the regulations, and, finally, this paper advocates for a more inclusive and independent grievance redressal mechanism.
Scientific production of CNPq researchers in the areas of physical therapy and occupational therapy, Brazil
Authors: Sousa Árlen Almeida Duarte de , Brito Ana Monique Gomes , Alves Stéfany Allaide Fasolak , Vicente João Victor de Jesus , Oliveira Valéria Gonzaga Botelho de , Martelli Daniella Reis Barbosa , Martelli Júnior Hercílio
Published: November 2023

Abstract Introduction : The scientific production of the areas of physical therapy and occupational therapy presented important growth and international visibility. Objective : To evaluate technical and scientific indicators, in addition to the training of human resources, of scholarship researchers of scientific productivity of CNPq (PQ), in the area of physical therapy and occupational therapy. Methods : A cross-sectional, census and quantitative study was conducted from the Lattes curricula of CNPq researchers with active scholarships in December 2021. The information was extracted through the Lattes Platform of CNPq, including three dimensions of variables for analysis: a) researcher profile; b) scientific production; c) training of human resources. Results : The evaluation included 73 PQ CNPq, in the areas of physical therapy and occupational therapy. The majority were female (n = 42; 57.5%), distributed in 26 different institutions in the country, with the Southeast region being the most prevalent. The largest portion of the PQ completed their doctorate between 11 and 20 years ago (n = 41; 56.2%) and did postdoctoral work (n = 55; 75.3%) abroad (n = 32; 58.2%). The group published 9,486 scientific articles throughout its career, averaging 129.94 scientific articles per PQ. The group of PQ supervised a total of 2,561 undergraduate students, 1,748 master’s and 800 doctoral students. The mean H index of PQ was 19.74 (CI 95% = 18.40-21.11; SD = 5.71; median = 19). Conclusion : The PQ scholarship researchers presented significant scientific production and training of human resources, which confirms the important development of the areas in the last ten years. However, a strong nucleation of this production was observed.
On the Parallel Parameterized Complexity of MaxSAT Variants
Authors: Bannach Max , Skambath Malte , Tantau Till
Published: November 2023

In the maximum satisfiability problem (max-sat) we are given a propositional formula in conjunctive normal form and have to find an assignment that satisfies as many clauses as possible. We study the parallel parameterized complexity of various versions of max-sat and provide the first constant-time algorithms parameterized either by the solution size or by the allowed excess relative to some guarantee. For the dual parameterized version where the parameter is the number of clauses we are allowed to leave unsatisfied, we present the first parallel algorithm for max-2sat (known as almost-2sat). The difficulty in solving almost-2sat in parallel comes from the fact that the iterative compression method, originally developed to prove that the problem is fixed-parameter tractable at all, is inherently sequential. We observe that a graph flow whose value is a parameter can be computed in parallel and develop a parallel algorithm for the vertex cover problem parameterized above the size of a given matching. Finally, we study the parallel complexity of max-sat parameterized by the vertex cover number, the treedepth, the feedback vertex set number, and the treewidth of the input’s incidence graph. While max-sat is fixedparameter tractable for all of these parameters, we show that they allow different degrees of possible parallelization. For all four we develop dedicated parallel algorithms that are constructive, meaning that they output an optimal assignment – in contrast to results that can be obtained by parallel meta-theorems, which often only solve the decision version.
VALIDATING THE FIRST LAW OF THERMODYNAMICS FOR UNSTEADY FLOW IN A COMPRESSION WAVE USING MATHCAD
Authors: Ryndin Vladimir , Karmanov Amangeldy , Kinzhibekova Akmaral , Dyussova Rizagul , Abdullina Gulnara
Published: November 2023

Classical thermodynamics traditionally overlooks the role of quantities dependent on spatial coordinates and time,
especially in the context of unsteady flows. This research introduces the first law of thermodynamics (FLT) tailored
for nonstationary flow, distinguishing itself with the inclusion of terms bearing partial derivatives of pressure, p(x, t), concerning coordinates and time (-ν(∂р/∂х)dx; -ν(∂р/∂t)dt). By employing this novel approach, the derived equations are validated using a centered compression wave as a representative nonstationary flow case study. A methodology is also presented for experimentally quantifying hydrodynamic energy losses in the intake and exhaust systems of internal combustion engines. Central to the exploration is the calculation of pressure forces' work (-ν(∂р/∂х)dx and -ν(∂р/∂t)dt) in the FLT equation for nonstationary flows, particularly their applicability to a centered compression wave. Moreover, a distinct procedure for discerning friction work in nonstationary flow is delineated. The research methods encompass both analytical derivation and numerical simulations leveraging Mathcad software. The bespoke Mathcad program crafted for this study can graphically represent multiple flow parameters as functions of time, proving invaluable for comprehending compression wave dynamics and evaluating friction work in diverse unsteady flows. Ultimately, the incorporation of energy equations tailored for nonstationary flows into classical thermodynamics paves the way for a more comprehensive understanding and application of thermodynamics to intricate flow scenarios.
An experimental study on the sulfuric acid resistance of mineral additive mortars
Authors: Kaplan Cebrail , Dündar Behçet , Resuloğulları Emriye Çınar
Published: November 2023

Mineral additives are preferred to improve the physical, mechanical and durability properties of cement-based composites and to reduce the use of cement to prevent environmental pollution and high production costs. Within the scope of this study, a new pozzolanic material, ground profillite powder (GPP), was evaluated by comparing it with granular ground blast-furnace slag (GGBFS), and it was used as a substitute for cement at ratios of 5, 10 and 15% by weight. The effects of these two mineral additives on the mechanical and physical properties of mortars and their resistance to sulfuric acid (SA) were investigated. In the production of the mortar samples, CEM I 42.5/R-type Portland cement (ordinary Portland cement) was used as the binder, and 0–4 mm crushed sand was used as the aggregate. Mineral additive and non-additive mortars were produced in the laboratory environment in dimensions of 40 × 40 × 160 mm. Spreading values, bending and compressive strengths, water absorption and porosity values and weight and strength loss values under the effect of SA were examined comparatively. It was determined that the mortar samples produced using GPP showed higher resistance to SA attacks than the pure and GGBFS-added mortars, reducing weight losses up to 21% and compressive strength losses up to 30%.
Investigation of tribological behavior of poly(methyl methacrylate) biocomposite containing hydroxyapatite
Authors: Kırkbınar Mine , İbrahimoğlu Erhan , Yetgin Salih Hakan , Çalışkan Fatih
Published: November 2023

Poly(methyl methacrylate) (PMMA), is widely used in biomedical applications such as bone cement. However, it is known to have low wear resistance. To enhance its tribological behavior, a reinforcement phase is necessary. For this purpose, in this study, homemade hydroxyapatite (HAp) was utilized to enhance the mechanical properties and wear resistance of PMMA while also increasing its biocompatibility. Using the thermal extraction method, natural raw materials were used to synthesize homemade HAp powder successfully. The d 0.5 of HAp powders in particle size analysis was 7.464 μm. Hot isostatic pressing (HIP) was used to create PMMA–HAp biocomposites with various HAp ratios (5, 10 and 15 wt%) in PMMA. The wear morphology was characterized by scanning electron microscopy (SEM). The SEM images showed a severe abrasive wear mechanism, but a relatively stable wear surface was observed that indicated slight abrasion during the wear tests with the increase in HAp ratio. The highest wear rate was obtained in 15% HAp-reinforced PMMA at a sliding speed of 1.0 m/s and had value of 4.72 × 10−4 mm3/(N m) under a 20 N load. The HIP’ed densities of the samples increased from 1.15 to 1.31 g/cm3 with increasing amount of HAp. Similarly, the Vickers test results showed that the hardness values increased from 14.76 to 22.03 HV.
Recycling of HIPS and multilayer films with SEBS-based additives
Authors: Kasi Elangovan , Krishnakumar Vishwa
Published: November 2023

With the evolution of new polymers and an increase in their scope of applications, the use of natural resources such as petroleum products for polymer production has seen a drastic increase in the past few years. With production rates higher than ever and rapid, unsafe disposal of used polymers has taken a toll on the environment and other species through pollution. Even though there are alternative solutions, including bioplastics manufactured from greener sources and biodegradable plastics that can disintegrate in a shorter time period, these alternatives are currently in their early stages and hence expensive. It is also more challenging for them to meet the high demands in terms of both quantity and properties. The next nearest alternative, recycling, is the best available solution to avoid plastic waste entering landfills and to reduce raw material demands. This study aims to determine the effectiveness of a newly introduced styrene–ethylene–butadiene block copolymer (SEBS)-based property enhancer (WinMod 300) with disposed high-impact polystyrene (HIPS) and a maleic anhydride-grafted SEBS compatibilizer (WinMod 110) with disposed multilayer films (low-density polyethylene and polyester layers). Recycled compounds were tested for necessary and significant mechanical properties and subjected to material characterization, and the results are presented in this paper.
Yerel Yönetimlerin Taşınmaz Satış Geliri
Authors: DURU Ahmet Alptekin
Published: November 2023

Yerel yönetimler gelir elde etmek için arsa, bina, tarımsal arazi, lojman gibi pek çok taşınmazını satmaktadır. Bu çalışmada literatür ve mevzuat taraması yöntemiyle taşınmaz satışının yerel yönetim gelirleri içindeki yeri incelenmektedir. Taşınmaz satışı belediyeler için önemli bir gelir kaynağıdır ama il özel idareleri, büyükşehir belediyelerinin bağlı idareleri ve mahalli idare birlikleri bakımından ciddi bir bütçe geliri değildir. 2008-2022 döneminde belediyelerin bütçe gelirinin %7,4’ü (yılda ortalama 18 milyar TL) taşınmaz satışı kaynaklıdır. Satılan taşınmazlar içinde en önemli payı imar planı yapılmış taşınmazlar olan arsalar almaktadır. Ancak taşınmaz satışı sürdürülebilir bir gelir kaynağı değildir ve Türk mali sistemine hâkim olan ekonomiklik ilkesine aykırıdır. Dünyadaki pek çok ülkede yerel yönetimler taşınmazlarını satmak yerine uzun süreli kullanım izinleri vermektedir. Böylece kullanım süresi sonunda taşınmaz başka kamu hizmetleri için kullanabilmekte ve kentsel rant kamu elinde kalmaktadır. Makalede Türk yerel yönetimlerin taşınmaz satışı yerine başka yollar kullanılarak aynı veya yakın düzeyde gelir elde edebileceği öne sürülmektedir. Fakat mevzuatta yer alan irtifak hakkı, uzun süreli kiralama, işletme hakkının devri, gayrimenkul yatırım ortaklığı, gayrimenkul yatırım fonu, kira sertifikası ile gelir ortaklığı senedi enstrümanları yerel yönetimlerin ihtiyacını karşılayamamaktadır. Yerel yönetimlerin bu enstrümanları kullanabilmesi için mevzuat değişikliğine ihtiyaç vardır. Ayrıca planlı kentleşmeyi sağlamak veya kamu giderlerini azaltmak amacıyla yerel yönetimlerin bazı taşınmazlarının satışına devam edilmelidir.
Capital Appreciation Ltd v First National Nominees (Pty) Ltd 2022 ZASCA 85 - The connection between share re-acquisitions, schemes of arrangement, and appraisal rights under the Companies Act 71 of 2008
Authors: Madlela Vela
Published: November 2023

This note analyses the judgment of the Supreme Court of Appeal in Capital Appreciation Ltd v First National Nominees (Pty) Ltd 2022 ZASCA 85 pertaining to the issue of whether the appraisal rights in section 164 of the Companies Act 71 of 2008 (the Companies Act) apply to a share re-acquisition of more than 5% of a company's issued shares in terms of section 48(8) of the Companies Ac. This judgement is significant in that it highlights the connection between, and the proper interpretation of the statutory regime created by, sections 48, 114, 115, and 164 of the Companies Act as well as the rationale underpinning this statutory regime. The note examines the main issues raised by the judgement as well as the impact that the amendments proposed by the Companies Amendment Bill [B27-2023] will have on this area of company law if this Bill is passed into law.
Possible economic losses on the oranges production chain of Peru due to introduction of Huanglongbing (HLB): Simulation of prospective scenarios to 2045
Authors: Mercado Waldemar , Guadalupe Katherine , Vega Alegre Karla
Published: November 2023

Huanglongbing (HLB) is a citrus disease known for causing significant production losses, and its potential introduction into Peru looms on the horizon. The aim of this study was to assess the potential economic losses within the Central Jungle's orange production chain, specifically in the Region Junín. This assessment involved simulating the spread of HLB under prospective scenarios spanning from 2026 to 2045, aiming to estimate the cost-benefit of preventing these losses through the implementation of a national phytosanitary program (PNF). The methodology employed in this study comprised administering questionnaires to local growers and estimating economic losses across three scenarios. The first scenario assumed a baseline production trend without HLB presence, while the second scenario considered an epidemiological situation with HLB but without the implementation of a PNF. The third scenario factored in HLB with varying degrees of adoption among PNF-affiliated growers. The findings highlight several risk factors contributing to the potential spread of HLB in Junín. The epidemiological model reveals that HLB can swiftly render young trees unproductive. Cumulatively, economic losses from 2026 to 2045 could reach a staggering US$ 371,146 thousand if no intervention takes place. However, this figure could be significantly reduced to US$ 44,890 thousand if 100% of growers embrace the PNF. Such public policy measures would not only prevent production losses but also generate substantial social benefits. These scenarios underscore the stark negative impacts HLB could inflict on the local orange production chain. The implementation of the PNF proves to be a critical intervention, preventing production losses, preserving jobs, and safeguarding related economic activities. Without timely public intervention, the economic losses at stake could render the agribusiness sector unsustainable.
Bulk FLASH-seq v2
Authors: A Siwicki Rebecca , Hahaut Vincent , Picelli Simone
Published: November 2023

Bulk RNA sequencing has revolutionized the study of transcriptomes, enabling the analysis of gene expression in complex tissues and heterogenous cell populations. While single cell RNA sequencing (scRNA-seq) has gained popularity due to its ability to profile individual cells, it comes with limitations such as high costs and reduced sensitivity for detecting low-abundance transcripts. Here, we present bulk FLASH-seq (FS), a full-length RNA-seq method based on the single cell FLASH-seq workflow (Hahaut et al, 2022, https://www.nature.com/articles/s41587-022-01312-3), updated for bulk RNA analysis. FS bulk generates high quality data while requiring minimal hands-on time and offering a greater degree of customization. As a homebrew protocol, it is inexpensive compared to commercial kits allowing you to invest in greater sequencing depths or in a higher number of sequenced samples. Our protocol enables comprehensive transcriptome analysis of bulk RNA samples, providing an alternative approach to scRNA-seq for gene expression when single-cell RNA-sequencing is not required.
Dissection of the Carotid Sinus Nerve and Carotid Bifurcation for MicroCT v1
Authors: O'Neill Steven
Published: November 2023

Dissection of the carotid sinus nerve begins with the exposure and subsequent removal of the zygomatic arch and angle of the mandible.The region superior to the styloid process and inferior to the jugular foramen is slowly microdissected until the carotid sinus nerve is observed descending inferiorly from or within the region of the glossopharyngeal nerve. Once all relevant structures have been identified and appropriate measurements made, a specimen of the carotid bifurcation with all associated structures of interest is removed. Structures on this specimen are painted for identification and then photographed as necessary.
Exploring the Mangrove Based Phytochemicals as Potential Viral RNA Helicase Inhibitors by in silico Docking and Molecular Dynamics Simulation Methods
Authors: Satpathy R. , Acharya S.
Published: November 2023

A variety of plant-derived molecular compounds from mangrove plants have attracted attention due to the discovery of their antiviral activity. It has been proven that herbal medicines based on them provide good protection against a number of pathogenic viruses. However, it is necessary to screen these effective antiviral compounds to select those that have fewer harmful side effects. This study aimed to screen several bioactive compounds from mangrove plants that could be used as a viral RNA helicase inhibitor. Fifty-nine compounds were selected from the literature and databases for initial study and screening according to Lipinski's rule of five. The resulting selected compounds were subjected to another round of screening through molecular docking studies with five different pathogenic virus RNA helicase enzymes using the Autodock Vina tool followed by ADMET (absorption, distribution, metabolism, excretion and toxicity) analysis. In addition, the best compound-bound helicase-RNA complexes were included in 50 ns molecular dynamics simulations using Gromacs 5.1.1 software followed by molecular mechanics Poisson-Boltzmann surface area (MM-PBSA) analysis. This comparative study predicts that the phytochemical gedunin is an excellent inhibitor of the RNA helicase enzyme of SARS-CoV-2, followed by Japanese encephalitis virus and hepatitis C virus. The results of the study may lead to the development of antiviral compounds against the RNA helicase enzymes of pathogenic viruses.
Cross Analysis on Social Justice Leadership of School Principals in Turkey and Greece
Authors: SAYICI Mehmet , SOULANI Alexandra Helen , SİNCAR Mehmet
Published: November 2023

Although social justice is an old concept, practical applications of it in education are relatively new and highly dependent on contextual variables, just as social justice leadership. Social justice leadership has been fostered by various distinctive factors in western and eastern societies. From this point of view, the authors attempt to compare Greek and Turkish school principals’ social justice leadership to reveal the similarities and differences between them. In this qualitative case study, 12 principals in total from Greece and Turkey were interviewed through in-depth semi-structured interview questions. Comparative analysis was employed to identify the similarities and differences between principals’ practices, internal and external social justice leadership resources, supports and hindrances. The results show that while the principals adopt universal social justice principles, they also use their own methods because of their schools’ contexts and their life experiences.
Public Employment Services' Responses to the Pandemic: Examples from Portugal, Bulgaria, and Lithuania
Authors: Ribeiro Ana Sofia , Lendzhova Vladislava , Vyšniauskienė Sonata , Ferreira Tatiana , Sousa João Carlos , Roque Isabel , Kõiv Kerli , Saks Katrin , Agahi Omeed , Prieto‐Flores Òscar , O’Higgins Niall
Published: November 2023

The Covid-19 pandemic provoked critical changes to welfare in Europe, requiring the dematerialisation of programmes and services while relying mainly on remote support. This study aims to present insights into how European public employment services have coped and adapted to the pandemic challenges, particularly regarding the digitalisation and delivery of services to young people in rural areas. It focuses on three case studies from distinct European regions: Portugal, Bulgaria, and Lithuania. It is based on an exploratory survey of public employment services national offices and qualitative data collected from public employment services offices in rural settings. It highlights the advantages and dangers of the adoption of digitalisation processes, namely considering literacy and accessibility in diverse contexts. It concludes that despite cultural and regional differences, all three countries evidenced an acceleration in service provision due to digitalisation and were capable of adjusting their practices to remote delivery. However, rural areas faced delays due to poor infrastructure, and after the pandemic, public employment privileged on-site delivery, since it is considered more effective in the training and counselling of young people.
One Crisis is not Like Another: Exploring Different Shades of Crisis in the EU
Authors: Hupkens Jan , Neuhold Christine , Vanhoonacker Sophie
Published: November 2023

Against the background of more than a decade of crises in the EU and an increasing inflationary use of the term, this article contributes to the crisis literature in two ways. First, by presenting the state of the art in broader academic research on crises and crisis management, it explores how the more recent EU literature can benefit from this earlier work. At the same time, it also pays attention to the EU specificities and the implications in terms of research, especially with regard to studying actors and perceived threats. Here the unpacking of the well-established crisis definition of Boin et al. (2013), which builds on the work of Rosenthal et al. (1989), serves as a helpful starting point. Second, the contribution argues that one crisis is not like another and that crises can take different gradations. By distinguishing between mild, severe, and existential crises, it makes a first attempt to propose the key analytical dimensions that impact the gradation of a crisis. Building on the findings in EU crisis research, it distils the dimensions of severity, symmetry, and speed as defining characteristics. Depending on the crisis, the gradation of each of these dimensions ranges along a spectrum. In other words, there are different shades of crises. By being more explicit about the gradation, scholars can identify what type of crisis is at stake (i.e., whether the crisis under study is mild, severe, or existential in nature). This in turn has implications for questions such as by whom, how, and when a crisis needs to be addressed. As a final step, the article also identifies a series of avenues for further research.
Retracted
Authors: Retracted
Published: November 2023

Retracted
Factors Influencing Cervical Cancer Screening in Women Referring to the Therapeutic Centers of Tehran: A Cross-sectional Analysis
Authors: Pakan Goudarzi
Published: November 2023

Cervical cancer is the second most common cancer in women; screening intervals are the basis of early diagnosis. Moreover, this study was conducted in Tehran, considering the importance of cervical cancer screening for diagnosing this cancer and the lack of sufficient information about the factors related to cervical cancer screening in women. However, this paper studies the extent of screening behaviors and factors influencing it in cervical cancer. This descriptive and analytical paper established the target population of 384 women of different ages who refer to healthcare centers in Tehran. The purpose of data collection was based on the researcher's questionnaire based on the studies and data of the patients registered in Shariati Medical Center in Tehran, whose reliability was confirmed by the test (Cronbach's Alpha= 0.7).
Furthermore, data was analyzed by SPSS and Smart PLS. This paper reveals that six factors influence the direct effect of cervical cancer screening. However, the factors include personal hygiene, psychological, pap smear test screening, colposcopy screening, social factors, and Health Care Utilization—the existing observation aimed to assess the influence of risk factors of cervical cancers. Accordingly, most cervical cancers may be diagnosed with previous knowledge of threat factors. Identification of excessive–risk populations and beginning early screening are influential in the early recognition of cervical cancers.
The Application of The “Project-Based” Piano Teaching Model at Universities
Authors: Pin Kang Yi , Yoong Chong Yew
Published: November 2023

The teaching of basic piano playing skills is a fundamental and compulsory course for higher teacher training in music education. Only by fully embodying the principles of systematicity, progressiveness, practicality, and innovation in piano education can we better meet the requirements of the higher teacher training objectives. This paper combines theories of cognition, psychology, and education with constructivist learning theory to advocate a teaching philosophy centered on a “Project-based” piano teaching model. This study takes the scientific and feasibility of the “Project-based” piano teaching mode as its research objective. Through an in-depth study of its constituent elements, including teaching content, the application process, teaching strategies, and application guarantees, the ultimate aim is to be able to effectively stimulate students' interest in learning the piano, develop their independent learning ability and innovation, and accelerate the learning process of keyboard skills.