bluuebunny/crossref_metadata_2025 huggingface dataset:
Corrupción y vulnerabilidad laboral por la Ley de Contratación del Estado durante la Emergencia Sanitaria
Authors: Ciriaco Caqui Jeferson Jesús
Published: July 2023

La presente investigación buscó establecer de qué manera la corrupción ha vulnerado la normatividad de la Ley de Contratación del Estado y la coyuntura actual de crisis debido a la pandemia de COVID-19. En este sentido, se buscó conocer cómo la corrupción y el actual deterioro institucional influye en la normativa vigente con respecto a las contrataciones públicas, ya que estas son aplicadas de forma directa dado la situación de emergencia. Se siguió el paradigma cualitativo, con grado de análisis explicativo-descriptivo. En cuanto a la unidad de análisis, se constituyó por las órdenes de compra realizadas por las entidades públicas, la muestra fue no probabilística, seleccionada a partir de un muestreo aleatorio simple. El análisis de los datos obtenidos llevó a concluir que es necesario fortalecer tanto los factores de regulación en los procesos de compras directas del Estado y la administración pública como su inspección; pero también debe haber mayor énfasis y dedicación por parte del Estado para tomar acciones sobre la prevención de corrupción.
Relevancia de la experiencia del empleado en el logro de los objetivos organizacionales
Authors: Cueva Talledo Joyce Marivi
Published: July 2023

El presente artículo tiene como propósito examinar seis modelos de la experiencia del empleado propuestos por diversos autores y miembros de consultoras reconocidas a nivel mundial, detallar las dimensiones y prácticas relacionadas a cada modelo como parte de la gestión de recursos humanos, y conocer la relevancia que tienen en el logro de los objetivos organizacionales. Los resultados de la revisión teórica, a través de la búsqueda de artículos científicos en Scopus, permitieron conocer que modelos son los más referenciados por otros investigadores, además de profundizar en los esquemas planteados y conocer la relevancia de la experiencia del empleado en la mejora de indicadores clave para la gestión, como el compromiso, la innovación y el rendimiento. Se pudo concluir que los colaboradores necesitan una vinculación más empática y significativa por parte de la organización, de tal manera que el esfuerzo y la inversión que ésta realiza no se centre únicamente en los deseos, expectativas y necesidades de los clientes, sino también en las de ellos, para así diseñar una organización basada en la experiencia y generar un fuerte involucramiento de los empleados en el logro de los objetivos organizacionales.
Buenas prácticas en el desarrollo de las tesis doctorales
Authors: Castro Pérez Luis Alonso , Rivera Leon Felix Armando
Published: July 2023

El presente artículo tiene como finalidad aportar algunas reflexiones y planteamientos con relación a la forma en que las universidades llevan a cabo las asesorías de las tesis de posgrado, considerando que la realización de la tesis doctoral exige un trabajo riguroso tanto por parte del doctorando como por los asesores siendo, este último, responsabilidad de la unidad académica de posgrado. En ese sentido, se pretende identificar las prácticas en el desarrollo de las tesis doctorales en las universidades peruanas a fin de proponer buenas prácticas en la asesoría de tesis, adoptando medidas que reglamenten el procedimiento y que garanticen al doctorando una adecuada orientación que haga posible alcanzar el objetivo de la graduación con un trabajo de calidad académica a través de buenas prácticas. Ello debido a que, con frecuencia, se observan criterios disímiles no solo entre las facultades, sino también entre universidades, respecto a la forma de orientar el desarrollo de las tesis doctorales, aunándose dicha situación a la ausencia de políticas de investigación, desarrollo de líneas de investigación por parte de las universidades según su área de influencia y, eventualmente, escasa preparación de los tutores. En ese orden de ideas, la universidad o academia, como acertadamente se le denomina hoy, tiene una gran responsabilidad social, más allá de su naturaleza pública, privada o asociativa, respecto al desarrollo nacional. En ese sentido, su contribución no solo se limita a la formación profesional, sino también al desarrollo del conocimiento tecnológico en función de la solución de las necesidades sociales.
IgA Nephropathy Associated with IgA Vasculitis Coexisting with Focal Segmental Glomerulosclerosis Tip Variant: A Case Report
Authors: Paulín Zepeda Zitlali Guadalupe , Salgado Guizar Karla Daniela , Téllez Bolaños Vianey Guadalupe , Robles Fernandes Louis Fernando , Gil Arredondo María Inés
Published: July 2023

IgA vasculitis (IgAV), previously known as Henoch–Schönlein purpura, is a form of small vessel vasculitis that affects the skin, joints, intestines, and kidneys. The clinical presentation in adults is usually infrequent, more severe, with a worse prognosis and a higher recurrence rate. Due to limited scientific evidence, IgAV is viewed similarly to IgA nephropathy (IgAN), and the renal histopathological lesions are indistinguishable between the two. IgAN is the most prevalent glomerular diseases worldwide. The diagnosis of IgAN is confirmed through a renal biopsy. The most frequently found histopathological lesions are mesangial proliferation and concurrent IgA deposition confirmed by direct immunofluorescence. Focal segmental glomerulosclerosis (FSGS) appears as a glomerular pattern of injury in up to 40% of renal biopsies with IgAN, although there are few reported cases in the international literature where both diseases coexist as primary etiologies. We report a case of a female patient presenting with vasculitic lesions, abdominal pain, and nephrotic syndrome, whose cause is confirmed by a renal biopsy with a diagnosis of IgAN secondary to IgAV and coexistence of FSGS, an unusual presentation with few case reports.
Improvement of the cold rolling mill diagnostic system based on the data base of its electromechanical processes
Authors: Nazarova Olena , Vasyliev Bohdan , Shokurov Danylo
Published: July 2023

Purpose. To improve the diagnostic system of the cold rolling mill based on the database of its electromechanical processes, by developing a fuzzy decision-making system as to the condition of the rolling mill electrical drives, which will increase the efficiency of the existing diagnostic system.
Methodology. Mathematical and computer modeling.
Findings.A fuzzy decision-making system about the state of two interconnected electric drives of the unwinding mechanism and the rolling mill has been developed to investigate and prevent the pre-emergency state associated with the break of the rolling metal strip. The specified decision-making system is built on the basis of a database of electromechanical processes of electric drives of the skin-threat single-celled state of cold rolling of the cold rolling shop No. 1 of PJSC "Zaporizhstal". At the input of this system, the voltage of the armature circuit of the unwinding mechanism motor, the armature circuit current of the unwinding mechanism motor, the tension of the rolled metal strip in the area between the unwinder and the rolling cage are set. At the output, the general state of the system is obtained, which depends on the values of the input data. Information on the value of the tensile strength of the rolled metal strip can be obtained on the basis of the pressure data and voltage sensors, which are installed on industrial equipment. Information about the value of the tension force of the rolled metal strip can be obtained both by installing additional measuring devices and indirectly, using mathematical models of the roll current radius and the linear speed of the rolled metal strip.
Originality. The system for diagnosing the condition of cold rolling has been improved by introducing a fuzzy decision-making system into its composition based on a database of electromechanical processes of the electric drives of the unwinding mechanism and the cage, which will allow to prevent an emergency condition caused by a break in the rolled metal strip.
Practical value. Prevention of breaking of the rolled metal strip on the basis of an improved system for diagnosing the state of cold rolling, which uses information from the database of its electromechanical processes in order to improve the efficiency of the product quality management process. Using complete organized information and experience of operating a cold rolling mill, you can form technical and technological solutions for the modernization of existing and development of new technological equipment and systems for automatic control of electric drives of rolling mills.
An Excerpt of “Development and Liberation in Theology of Liberation by Gustavo Gutiérrez”
Authors: Firestone Preston
Published: July 2023

This is an excerpt from an assignment for Mario Aguilar’s module DI4824 on Latin AmericaTheology. The topic of the paper was ‘development and liberation in Theology of Liberation by Gustavo Gutiérrez’. In order to quickly orient the reader to Gutiérrez, it is good to begin with his retelling of the Exodus in Theology of Liberation.
PRODUCTION OF SPECIFIC FLOUR FOR FROZEN PRODUCTS BY FLOUR STREAMS BLENDING
Authors: Zhygunov D. , Sots S. , Barkovska Y. , Liu Jiguo , Wang Fengcheng , Liu Xinxin , Wang Zhibing , Li Xiyan
Published: July 2023

The bakery industry requires specific quality flours to manufacture different products. For the production of frozen products, strong flour with specific quality indicators is required, which is caused by the deterioration of the structural and mechanical properties of the dough after defrosting, decrease in the gas–holding capacity and dimensional stability of the dough blanks. Based on the literary review and a priori information the following quality indicators are recommended for flour for frozen products: whiteness >54 units, protein content >12.0%, gluten content >28.0%, GDI in the range of 70–80 units, starch damage in the range of 19–22 UCD, WAC >57%, W >260∙10–4 J and P/L ratio in the range of 0.8–1.2.
Milling process of the wheat generates different flour streams that differ in composition, particle size, functional and baking properties. Furter all flour mill streams are blended in one straight grade (single grade milling) or multiple flour grades (split milling). Research in the article is to investigate the quality indicators of flour mill streams for further formation of specific flour for frozen products. For the research, samples of flour were taken from each milling system of the flow diagram during milling of the two hard red winter wheat samples (HW1 and HW2 with protein content 13.3 and 12.2% respectively).
Based on the analysis of the quality indicators of flour milling streams and their comparison with the requirements for flour for frozen products, it was established that none of the flour milling streams meets all the flour quality indicators for frozen products – flour streams from systems B3 and B2 have the closest quality indicators. Selected individual flour milling streams that are of great interest as streams for blending for flour for frozen products.
As a result of comparing the flour quality indicators obtained at various stages of the technological process with the requirements for flour quality indicators for frozen products flour, the optimal percentage of flour patent yield for frozen products составляет 33.2% for HW1 and 20.5% for HW2.
THE MINERAL COMPOSITION OF POTATOES AND ITS INFLUENCE ON THE DARKENING OF TUBERS PULP
Authors: Gunko S. , Vakuliuk P. , Naumenko О. , Bober А. , Boroday V. , Nasikovskyi V. , Muliar О.
Published: July 2023

Potato tubers are one of the most widespread and valuable food products in the world. An important component of their nutrients are minerals. Significant part of them is presented in potatoes in the form of mineral salts that are easily soluble in water. The total quantity of minerals in potato tubers is about 0.4–1.9% of the total weight and includes more than 30 elements. The objects of the study were five varieties of potato tubers that according of the length of the growing season belong to two ripeness groups: medium-early (Satina – control, Red Lady, Mozart) and medium-ripe (Aroza – control, Sifra). The quantitative composition of macro- and microelements (K, Ca, Mg, Na, Al, Fe, Mn, Ni and Cr), content of heavy metals (Cu, Zn, Pb and Cd) was determined and influence of some mineral substances (K, Fe and Cu) on the resistance of raw and cooked potato tubers to different types of darkening was assessed. Mineral substances were determining by corpuscule-emission spectrometry with inductively-linked plasma. Potassium had the highest quantity among macronutrients. Its amount changed from 5860 mg in the Sifra variety to 3740 mg in the Satina. Magnesium content was averaged 200 mg, and calcium ranged from 68 mg in Red Lady to 159 mg in Cifra. The main quantity of microelements was represented by aluminum and iron. The content of heavy metals in potato tubers did not exceed the permissible concentrations, and in some cases it was lower: lead was found in the traces quantities, zinc was almost twice less and copper was in five times lower than the maximum permissible concentration. Direct relationship between the amount of potassium and the degree of darkening of cooked tubers was revealed: if its amount in the tubers increased therefore resistance to darkening of potatoe increased too. It was established that iron and copper can also affecting on the processes of darkening in potato tubers, although a clear relationship between their quantity and the depth of these processes was not found. The reason may be the imperfection of the visual method of detecting of degree of darkening and the possible formation of complex compounds with these minerals, as a result of which they become unavailable for the reaction.
TAXATION OF SMALL BUSINESS: NORMATIVE ORGANIZATIONAL ASPECT
Authors: V. V. BOBYL  , O. A. TOPORKOVA
Published: July 2023

Goal. The paper is devoted to the review of the vectors of small business development in Ukraine in the context of harmonization of legislative requirements regarding tax regimes and state support of entrepreneurial activity. Methods. In order to solve the problems of such a type, we have proposed to apply a systematic approach, the methods of generalization and comparison in the work. Results. The paper deals with the current normative base concerning the classification of small business entities and their taxation regimes. We have generalized foreign experience in applying preferential taxation conditions and other means of state support for this sector of the economy. We have revealed that on the way to harmonization of domestic legislation in accordance with the European requirements, it is necessary to specify the criteria for assigning the corresponding category to business entities, and the direction of financial state support for small business. Scientific novelty. We have proposed the component model of taxation of small businesses in Ukraine, which consists of the following components: normative at the level of which special tax regimes and methods of state support for small businesses are formed; fiscal where the directions of tax work in the field of simplification of tax collection are formed; organizational-functional which is organized accounting for tax calculations at the level of a specific subject of entrepreneurship. Practical significance. The introduction of the proposed model of taxation of small businesses aims at developing, at the level of legislation, requirements for simplifying the tax collection and accounting system, enabling entrepreneurs to concentrate financial and labor resources directly on fulfilling their functional objectives. Such a vector of small business development will contribute to the improvement of the economic situation in the country.
MOTIVATION FACTORS OF PERFORMANCE OF PERSONNEL OF THE ENTERPRISE
Authors: L. D. HARMIDER  , L. A. GONCHAR
Published: July 2023

Purpose. The work is devoted to the study of the impact of employees' motivation on the performance of their activities. Method. Methods of individual (personal) expert evaluation of interviewing and questioning were used to justify measures to increase the level of employees' performance;  Performance Analysis Quadrant (PAQ) has been proposed for use. Results. The methodical approach is based on the use of matrix methods of strategic analysis of employees' performance, which allows to ensure rapid adaptation to external conditions, reduce uncertainty and risk in economic activity and ensure concentration of resources in selected priority directions. Practical significance is the demonstration of the use of matrix methods for the analysis of the effectiveness of personnel of enterprises when the use of only one classical diagnostic method is impossible due to the large number of factors that directly affect the effectiveness of employees and the development of measures to increase the effectiveness of employees of investigated trading enterprises, which depends on the influence of motivational factors.
Performance of Geneva® series apple rootstocks grafted with ‘Gala Select’ in four different replanting soil at Southern Brazil
Authors: Silva Flávia Lourenço da , Silva Pricila Santos da , Baldissera Sabrina , Pirolli Bruno , Rufato Leo , Herter Flávio Gilberto
Published: July 2023

Abstract The objective of this study was to evaluate the agronomic performance of the Geneva® series apple rootstocks G.202, G.213, G.210 and G.814. The rootstock G.202 and G.213 proved to be the less vigorous, being considered dwarfs. For replanting soil, ‘G.210’ was considered an efficient alternative. The ‘G.213’ was the most efficient, in a general point of view, demonstrating that it does not change its yield efficiency and stability characteristics, even under replanting conditions. All rootstocks reached the goal of 120 accumulated tons.ha-1 in Caxias do Sul-RS, highlighting the faster financial return to the growers. ‘G.213’ has higher soluble solids content, indicating the possibility of an earlier harvesting. It is concluded that the G.210 and G. 213 rootstocks are good options for the areas evaluated, under replanting conditions, mainly G.213 for more dense systems and G.210 for areas under extreme replanting conditions.
Successive applications of gibberellic acid in alternate bearing mandarins
Authors: Griebeler Sabrina Raquel , Gonzatto Mateus Pereira , Böettcher Gerson Nestor , Schwarz Sergio Francisco
Published: July 2023

Abstract Gibberellins can promote the inhibition of floral induction in citrus in order to reduce alternate bearing. However, not much is known about the responsiveness of Citrus deliciosa to exogenous applications of gibberellic acid. Furthermore, the successive application of gibberellins is barely studied. The main objective of this work was to evaluate the effect of successive applications of gibberellic acid (GA3) on the reduction of spring flowering subsequent to low fruit load periods (off-year) in ‘Montenegrina’ and ‘Rainha’ mandarin trees, in southern Brazil. The treatments consisted of one to four successive applications of GA3 (40 mg L-1) with 21-day interval in off-year trees. Applications began in May and ended in July. There was a significant reduction in sprouting and flowering of ‘Montenegrina’ mandarin with more than two GA3 successive applications compared to the control. To ‘Rainha’ mandarin, only two GA3 applications reduced the sprouting and solely one GA3 application was enough to reduce sprouting in relation to the control. GA3 use reduced sprouting and flowering of Montenegrina and Rainha cultivars. The orchard age may be related to its level of alternate bearing and, therefore, to the greater or lesser sensitivity of gibberellin applications.
CREAS: concepções de violações de direitos e os caminhos do trabalho social
Authors: Luzia Erika Leite Ramos de , Liporoni Andréia Aparecida Reis de Carvalho
Published: July 2023

Resumo: O presente ensaio é resultado de uma pesquisa sobre o CREAS e desvela as particularidades dessa unidade no âmbito da proteção social especial. Traz a prerrogativa do trabalho social em rede, e suscita reflexões profícuas sobre as violações de direitos e o papel do Estado capitalista. Aborda as categorias profissionais possíveis no SUAS e a importância da interdisciplinaridade. Os resultados apontaram avanços do CREAS no sistema de proteção social, concluindo que esse serviço está em consolidação.
From the Brazilian Income Transfer Program to Brazil Assistance: challenges and achievements according to a theory-driven evaluation research on the program
Authors: Costa Delaine Martins , Magalhães Rosana , Cardoso Maria Lúcia de Macedo
Published: July 2023

Abstract: The recent COVID-19 pandemic has led many countries to adopt emergency cash transfer policies as a way to contain the economic and humanitarian crisis. Such initiatives were developed in a context of exacerbated gender, race, ethnicity and class inequalities resulting from physical and social distancing measures. The article analyzes, by means of an exploratory study and the so-called theory-driven evaluation of the program, the theoretical premises of the Brazilian Income Transfer Program (2003), Brazilian Emergency Assistance (2020) and Brazil Assistance (2021) programs, and their corresponding implementation dynamics. As cash transfer programs are given centrality in the contemporary public agenda, the conclusion is that evaluating their limits and advances - as to theoretical conception and mechanisms triggered in each context - contributes to trace evidence about their effectiveness in addressing long-term inequalities and those inequalities that arise in health emergency contexts.
Relevância das redes sociais na mobilização social para o enfrentamento de arboviroses no Município de Betim, Minas Gerais, Brasil
Authors: Coelho Paloma , Batista Júlia Vargas , Profeta Zélia
Published: July 2023

Resumo: Este artigo consiste em uma análise das redes sociais dos moradores de uma comunidade em Betim (Minas Gerais, Brasil), visando compreender como elas podem ser utilizadas nas estratégias de mobilização social para o enfrentamento da dengue, zika e chikungunya no território. Utilizou-se o método da trajetória de vida para analisar os eventos e os condicionantes sociais da formação, manutenção e ruptura dessas redes, a qualidade e intensidade dos vínculos, as características do capital social e sua variação ao longo da trajetória dos indivíduos. A compreensão da estrutura das redes evidencia alguns aspectos importantes para a elaboração de novas estratégias de mobilização social no âmbito da proposta de vigilância em saúde a ser implementada no local. Na trajetória dos entrevistados, a vizinhança se mostrou como importante rede de reciprocidade e de provisão de recursos no cotidiano, dada a proximidade física e a duração das relações. Além disso, as redes religiosas têm presença significativa no cotidiano dos moradores, sendo fortemente ancoradas na prestação de “ajuda” social e pautada por valores solidários. Acredita-se que os comitês populares possam estimular essas redes, sobretudo as religiosas, a utilizarem seu repertório cultural e simbólico para trabalhar questões de interesse dos bairros, como promoção da saúde, construção de territórios saudáveis e sustentáveis, desenvolvimento local, geração de renda, melhoria da infraestrutura e preservação ambiental.
Obesidade e interseccionalidade: análise crítica de narrativas no âmbito das políticas públicas de saúde no Brasil (2004-2021)
Authors: Rodrigues Lorrany Santos , Miranda Nayara Garcez , Cabrini Danielle
Published: July 2023

Resumo: Objetivou-se realizar uma análise crítica da narrativa das políticas públicas de saúde brasileiras no cuidado da obesidade a partir de uma perspectiva interseccional. Trata-se de estudo qualitativo exploratório, documental e analítico, baseado na abordagem “What’s the problem represented to be?” [“Qual é o problema representado para ser?”], conhecida como WPR. Tal abordagem se configura como uma ferramenta metodológica de análise crítica de políticas públicas a partir de seis perguntas norteadoras. Foram selecionados dez documentos, publicados entre 2004 a 2021 pelo governo brasileiro. A análise crítica resultou em três categorias: (i) causas da obesidade e narrativa dominante: quais são os problemas representados?; (ii) narrativa dominante e cuidado em saúde: quais são os efeitos para as pessoas com obesidade?; e (iii) obesidade e interseccionalidade: onde estão os silêncios? O consumo de alimentos e o sedentarismo foram a narrativa dominante como causas da obesidade. A interseccionalidade, mediada pelas categorias de gênero/sexo, raça/cor e classe social, foi identificada como um silêncio na narrativa das políticas públicas de saúde. Tais categorias não foram consideradas como causas atreladas à obesidade, tampouco foram incluídas de forma efetiva nas ações propostas pelas políticas públicas de saúde. Os silêncios encontrados no estudo destacam a necessidade de inclusão da interseccionalidade na elaboração e execução de políticas públicas de saúde e no cuidado das pessoas com obesidade. Tendo em vista as intersecções de gênero/sexo, raça/cor e classe social e suas formas de opressão com o surgimento e agravo da obesidade, são de extrema relevância análises críticas sobre as narrativas simplistas nas políticas públicas de saúde para problematização das lacunas que repercutem no cuidado dos usuários com obesidade.
Tissue repair capacity of bioceramic endodontic sealers in rat subcutaneous tissue
Authors: Santos George Sampaio Bonates dos , Carvalho Ceci Nunes , Tavares Rudys Rodolfo de Jesus , Silva Paulo Goberlânio de Barros , Candeiro George Táccio de Miranda , Maia Filho Etevaldo Matos
Published: July 2023

Abstract This study aimed to evaluate the tissue repair capacity of four bioceramic endodontic sealers by quantifying type I and III collagen fibers. The following sealers were tested: EndoSequence BC Sealer (Brasseler, Brasseler, Savannah, USA), Bio C Sealer (Angelus, Londrina, Brazil), Bioroot RCS (Septodont, Santa Catarina, Brazil), and Sealer Plus BC (MKLife, Porto Alegre, Brazil). Polyethylene tubes 1.5 mm in diameter and 1 cm in length containing the endodontic sealers were implanted in the subcutaneous tissue of five rats (Rattus norvegicus albinus, Wistar lineage). After 14 days, the animals were euthanized, and collagen fibers were quantified from the histological tissue sections. Given a non-normal distribution of the data, a gamma regression with log link function was employed and implemented through the generalized linear models module, was used to test whether there was a significant difference between the sealers. The pairwise comparison was performed using Least significant difference. There were significant differences between the sealers for type I (p=0.001), type III (p=0.023), and total collagen (p=0.002). Overall, Bioroot sealer was statistically superior to the other sealers, except in the analysis of type III collagen, in which there was no difference between the Bioroot sealer and Bio C Sealer sealer and the control group (p>0.05). Bioroot RCS bioceramic endodontic sealer stimulates a greater production of collagen.
Patients´ satisfaction concerning direct anterior dental restoration
Authors: Freitas Bruna Neves de , Silva Paulo Oliveira da , Pintado-Palomino Karen , Almeida Cecília Vilela Vasconcelos Barros de , Souza-Gabriel Aline Evangelista , Corona Silmara Aparecida Milori , Geraldeli Saulo , Grosgogeat Brigitte , Roulet Jean-François , Tirapelli Camila
Published: July 2023

Abstract The objective of this study was to observe patients’ satisfaction with their in-service direct anterior dental restorations and to compare it with clinical evaluation using FDI (Federation Dental International) criteria. Patients scored their own anterior dental restorations regarding satisfaction (satisfactory /dissatisfactory). If dissatisfaction was mentioned, then, they would be interviewed about the complaint. In the same session, the dental restorations were clinically evaluated by two dentists using FDI criteria (1-5 score) concerning esthetic, functional, and biological domains. Descriptive statistics were used for frequencies of scores attributed by patients and clinicians. In order to compare patients’ to clinicians’ frequencies, the Chi-square test was applied (p ≤ 0.05). A total of 106 restorations were evaluated by patients and clinicians. Patients reported 52.8% of restorations satisfactory and 47.8% dissatisfactory. Overall, clinicians reported the same restorations as 82,3% satisfactory and 17,6% dissatisfactory. Patients’ most frequent complaints referred to color, followed by anatomical form, fracture of material and retention, and approximal anatomical form. Comparing patients’ satisfaction and dissatisfaction rates to clinicians’ evaluation per criteria, there was no difference regarding esthetics. The frequency of dissatisfactory restorations by clinicians was significantly lower when functional and biological properties were compared with patients’ opinions. Direct anterior dental restorations were more frequently reported as satisfactory by patients and clinicians, being the main complaints related to esthetic issues. When clinicians and patients’ evaluations were compared, it was observed that the frequencies of satisfactory restoration by patients and clinicians were similar regarding esthetic properties, and significantly different regarding functional and biological properties.
Evaluation of hydrophilic surface osseointegration in low-density bone: Preclinical study in rabbits
Authors: Pinto Gustavo da Col Santos , Reis Isadora Aparecida Ribeiro dos , Leocádio Amanda de Carvalho Silva , Silva Jr Matusalem , Faeda Rafael Silveira , Oliveira Guilherme José Pimentel Lopes de , Marcantonio Jr Elcio
Published: July 2023

Abstract The aim of this study was to evaluate the osseointegration of a hydrophilic surface (blasting + acid etching + immersion in isotonic solution) in comparison with that of a control surface (blasting + acid etching) using an experimental model of low-density bone. To perform the study, 24 rabbits were submitted to the installation of 4 implants in the iliac bone bilaterally: 2 implants with a control surface and 2 implants with a hydrophilic surface. The rabbits were euthanized at 2, 4, and 8 weeks after implant installation. After euthanasia, one implant from each surface was used to perform the removal torque analysis, and the other implant was used for the execution of non-decalcified histological sections and evaluation of the bone implant contact (% BIC) as well as the fraction of bone tissue area between the implant threads (% BBT). The implants with a hydrophilic surface presented higher %BIC (42.92 ± 2.85% vs. 29.49 ± 10.27%) and % BBT (34.32 ± 8.52% vs. 23.20 ± 6.75%) (p < 0.05) in the 2-week period. Furthermore, the hydrophilic surface presented higher removal torque in the 8-week period (76.13 ± 16.00 Ncm2 vs. 52.77 ± 13.49 Ncm2) (p<0.05). Implants with a hydrophilic surface exhibited acceleration in the process of osseointegration, culminating in greater secondary stability in low-density bone than in implants with a control surface.
A modified tunnel technique to treat multiple gingival recessions: Case Series
Authors: Guimarães Dennis Malta , Andrade Patrícia Freitas de , Rebollal Julio , Neves André Martins das , Granjeiro José Mauro
Published: July 2023

Abstract This case series reports a modified tunnel technique with connective tissue graft for the root coverage of multiple Miller Class I, II, and III gingival recessions. The modified approach presents an innovative suture technique to improve the stability and position of the graft. Ten patients with multiple gingival recessions (n=85 teeth) received surgical root coverage treatment. The gingival recession height and width were measured and presented as median, minimum, and maximum values. The percentage of the root coverage after at least 12 months expressed the treatment effectiveness. The Shapiro-Wilk test evaluated the normality; pared Wilcoxon test determined the exact P-value for the differences in the height of the gingival recession before and after surgical treatment (α = 0.05). An average of 97.9% (± 5.6%, p < 0.0001) root coverage after treatment occurred, and 73 out of 85 recessions presented complete root coverage after 12 months. Treatment of Miller class I and II gingival recessions resulted in root coverage higher than 99 and class III higher than 95% (p < 0.0001). The presented case series report the efficacy of a modified surgical technique promoting more than 95% of root coverage after 12 months in multiple Miller Class I, II, and III gingival recessions. Well-designed blind randomized controlled trials are needed to validate the proposed technique.
Effect of plasma and heat treatments on orange juice quality
Authors: Souza D. V. S. , Melo M. F. , Ambrósio M. M. Q. , Alves Júnior C. , Melo N. J. A. , Costa L. L. , Morais P. L. D.
Published: July 2023

Abstract Heat treatment is used in the orange juice industry to neutralize the action of pathogenic microorganisms. However, it can reduce the nutritional value of the juice. Thus, our study assessed the cold plasma treatment as an alternative method against Escherichia coli and Candida albicans in 'Lima' orange juice. Both, plasma and heat treatments, reduced the amount of E. coli in the juice, inactivating 16.72 and 100%, respectively. Plasma did not inactivate C. albicans, but heat treatment inactivated 100%. Plasma and heat treatment increased Hue angle and luminosity (more yellowish juice). Plasma reduced vitamin C, carotenoids, and polyphenols content, while increased flavonoids. Heat treatment reduced the carotenoid content. However, neither heat nor plasma treatment altered the antioxidant activity. The plasma treatment reduced the intensity of color (chroma), the soluble solids content and the acidity ratio, total sugars, and the vitamin C content of juice compared to the heat-treated and control juices. Plasma-treated juice showed increased levels of yellow flavonoids, total phenolics and antioxidant activity until the 12th day of storage.
Semen collection using electroejaculation and sperm parameters in pacas (Cuniculus paca, Linnaeus, 1766)
Authors: Faino A.L. , Santos P.A. , Farikoski I.O. , Souza F.A. , Ribeiro V.M.F.
Published: July 2023

ABSTRACT Pacas (Cuniculus paca) are highly hunted animals because of the flavor of their meat, and commercial breeding is recommended. However, this species has a relatively low reproductive rate. This study aimed to collect semen from pacas through electroejaculation and obtain the sperm parameters of this species for the first time. Seven male pacas were used, submitted to an anesthetic protocol before stimulation by an electroejaculator appropriate for the species. The stimulus protocol was performed in three series: series I, 10 stimuli with 1 and 2 V; series II, 10 stimuli with 3 and 4 V; and series III, 10 stimuli with 5 V and interval between series of 2 s. The collected material was evaluated for color, volume, motility, vigor, and concentration. The sperm parameters collected showed a mean volume of 0.43±0.33 mL, concentration of 45.5±42.44×106 sperm/mL, motility of 33.33±32.14%, and mean vigor of 2.6±1.15. In this study, the anesthetic protocol did not seem to favor semen collection by electroejaculation in the pacas. The electrical stimulation protocol was able to stimulate all animals in the study; however, there were few samples with sperm cells and a low rate of motility and vigor in most ejaculates.
Propolis extract as a feed additive of the Nile tilapia juveniles
Authors: Santos E.L. , Barbosa J.M. , Porto-Neto F.F. , Ludke J.V. , Silva T.J. , Lima M.R. , Soares E.C. , Ludke M.C.M.M.
Published: July 2023

ABSTRACT This study was conducted to investigate the effects of dietary propolis alcohol extract supplementation on growth performance, digestibility, intestinal morphometry, and physiologic parameters Nile tilápia (Oreochromis niloticus L.) juveniles. For performance experiment and intestinal morphometry, 120 fish averaging 1.41±0.3g were randomly distributed into 24 tanks (70L each) in a closed recirculation water system with constant aeration and biofilter. The animals were distributed into four treatments using a completely randomized design with six replicates per treatment. The treatments consisted of four pellet feeds with different alcohol propolis concentrations extract (AEP) (0.0, 0.5, 1.0 and 1.5gkg-1). The performance experiment period was conducted for 45 days. For the digestibility experiment, an inert marker in the feed and the adapted Guelph feces collecting system were used. The results showed no differences in the performance parameters, crude protein apparent digestibility and dry matter of the feeds, intestinal morphometry, and physiologic parameters. However, there was an increasing linear effect on the energy digestibility with increasing PAE concentrations in the fish feed. The usage of the propolis extract supplementation levels of 1% is recommended for optimum effect on villus morphometry in Nile tilapia.
Spatial analysis of leptospirosis and toxoplasmosis seroprevalence in the canine population in an area of socioeconomic and environmental vulnerability
Authors: Belaz L.D. , Santana C.F.S. , Victória C. , Pantoja J.C.F. , Freitas J.C. , Navarro I.T. , Pereira M.R. , Arabe Filho M.F. , Oliveira L.M. , Paes A.C. , Ribeiro M.G. , Megid J.
Published: July 2023

ABSTRACT Leptospirosis and toxoplasmosis are zoonoses of occupational character that are spread worldwide, mainly in tropical and socioeconomically vulnerable areas. Both diseases have vertebrate hosts, which spread the infectious agent to the environment and are potentially infectious to humans and can progress to fatal cases. The present study reinforces the importance of One Health for the control and prophylaxis of leptospirosis and toxoplasmosis using sentinel animals in areas of socioeconomic vulnerability based on a serological study. A total of 336 blood samples were obtained from the canine population of the urban district, which has high rates of poverty and sanitation. The results were analyzed based on seroreactivity animals and georeferencing by kernel spatial mapping. A total of 43.3% (52/120) of the animals were seroreagents for anti-Leptospira spp., with a predominance of Canicola (35/52 = 67.3%) and Pyrogenes (5/52 = 9.6%), while 52.97% (178/336) of the dogs were seroreactive for anti-Toxoplasma gondii. The presence of seroreagent dogs for both zoonosis alert to the inadequate hygienic-sanitary conditions of the studied region, and highlight the importance of a survey of the social, economic and environmental structure to identify factors related to the links in the epidemiological chain of pathogen transmission and necessary corrective actions.
Cardiorespiratory/sedative effects of a peptide identified in crotalic venom compared to acepromazine and xylazine in horses
Authors: Abimussi C. J. X. , Eneas M. D. , Floriano B. P. , Picolo G.
Published: July 2023

ABSTRACT The purpose of this study was to investigate whether intravenous crotalphine produces significant sedation, as well as physiological changes, in healthy standing horses. Six mares, aged 8 years and weighing 415kg underwent three different treatments in a crossover design: TA (acepromazine: 50μg.kg-1), TC (crotalphine: 0.01μg.kg-1) and TX (xylazine: 1000μg.kg-1), intravenously. At various time points over 60 minutes, physiologic variables were recorded: heart rate, respiratory rate, and rectal temperature. The head height from the ground (HHG) was evaluated in centimeters. Data were analyzed using ANOVA followed by Dunnett’s test or Friedman followed by Dunn’s test, under 5% significance. Heart rate decreased significantly at M5 and M10 compared with Mb in TX (28±7, 26±6 and 40±8 beats/minute-1, respectively; p=0.0004). Respiratory rate and rectal temperature did not differ among groups or time points. The HHG significantly decreased in all groups compared with Mb at various time points (p<0.0001). In conclusion, crotalphine did not produce reliable and durable sedation in healthy standing mares and did not influence cardiorespiratory variables in a clinically relevant manner.
Evaluation of antibacterial and antioxidant activity of purple araçá essential oil (Psidium rufum, Myrtaceae)
Authors: Branco L.A. , Laginestra B.F.A. , Marçal M.B. , Gazim Z.C. , Rahal I.L. , Herrig S.P.R. , Nunes M.G.I.F. , Simões J.V.M. , Gonçalves D.D. , Piau Junior R.
Published: July 2023

ABSTRACT The aim of this study was to evaluate the antibacterial and antioxidant activities of essential oil (EO) from fresh leaves of Psidium rufum. The EO was extracted by hydrodistillation and identified by gas chromatography coupled to mass spectrometry. The antibacterial activity was evaluated by determining the minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC). Antioxidant activity was determined by β-carotene/linoleic acid co-oxidation system, 2,2-diphenyl-1-picrylhydrazyl radical scavenging and iron reduction methods. Hydrocarbon sesquiterpenes were the predominant class, indicating 1,8 cineole, α-longipinene as major. The EO was tested against the bacteria Staphylococcus aureus and Pseudomonas aeruginosa (MIC = 2,500 µg/mL and MBC = 20,000 µg/mL); Enterococcus faecalis (MIC = 2,500µg/mL and MBC > 20,000µg/mL) and Escherichia coli (MIC > 20,000µg/mL and MBC > 20,000µg/mL). The EO showed antioxidant potential due to β-carotene/linoleic acid co-oxidation system, with 76.63% of oxidation inhibition (1.0mg/mL) and due to the iron reduction power (5,38 μmol Fe 2+ /mg sample). The results are promising in recommending this species for the development of food, cosmetic and pharmaceutical products.
Adultrap® trap optimized for collecting vector mosquito eggs, larvae and adults
Authors: Arduino M.B. , Santos G.V. , Rangel O.
Published: July 2023

ABSTRACT The productivity of the Adultrap® trap was compared to that of modified adultrap traps. Two structural changes were tested, a cover was placed at the entrance of the trap at two different heights. A comparison was also made with traps containing hydrogel to replace the water in the reservoir. The positivity rates of all the trap types were calculated and compared. The hydrogel models were more productive because they collected eggs, larvae, and adults. The trap that removed the protective screen and replaced the water with the hydrogel was 18.5 times larger than the original trap (p = 0.001). There was an increase in the productivity for the total collection of mosquitoes. The collection of eggs, larvae, and adults can contribute to the construction of more robust infestation indices. In addition, it allows for the collection of live specimens and the development of studies.
Effects of animal type, handling, and transportation conditions on beef cattle temperament pre-slaughter
Authors: Vaz R.Z. , Silva H.R. , Ghedini C.P. , Lucas J.D. , Dutra M.M.M. , Vaz F.N. , Reis N.P. , Restle J.
Published: July 2023

ABSTRACT This study aimed to investigate the effects of animal type, on-farm handling, and transport conditions on temperament of beef cattle pre-slaughter. The study evaluated 4,061 cattle batches, averaging 49 animals, with a total of 199,026 cattle. Temperament was evaluated through a behavioral assessment carried out based on the temperament shown by cattle when approached by humans. One of three different temperament scores were assigned to each batch: calm, anxious, or excitable. Excitable temperament was reported in animals subjected to long transport time and distance and high loading density. The degree of carcass fatness was higher in calm animals, followed by anxious animals, with the excited temperament animals having the lowest carcass fatness degree. Older animals showed more excitable temperament, while younger animals showed calmer temperament. The excitable temperament was more evident in horned animals in relation to polled animals. Animal temperament was more reactive in batches with older cattle, low carcass fatness degree, and with more than 20% horned animals. Good handling and loading facilities and procedures at the farm contributed to adequate cattle temperament expression prior to slaughter.
Chronic lead intoxication in a jaguar (Panthera onca) shot with round lead pellets - case report
Authors: Souza L.R. , Oliveira A.R. , Santos D.O. , Carvalho T.P. , Santana C.H. , Pimentel S.P. , Vasconcelos I.M.A. , Coelho C.M. , Tinoco H.P. , Gonçalves Â.T.P.R. , Silva R.O.S. , Costa É.A. , Melo M.M. , Paixão T.A. , Santos R.L.
Published: July 2023

ABSTRACT Lead is a heavy metal and an important cause of acute or chronic toxicosis in humans, domestic, and wild animals. This report aims to describe a case of chronic lead poisoning in a jaguar (Panthera onca) kept under human care that was rescued from the wild environment. The animal was rescued in poor condition in 2004 and kept under human care at the Belo Horizonte Zoological Garden (Minas Gerais, Brazil) until 2020, when it presented with anorexia, vomiting and ataxia. Over the past years the animal had episodes of anemia and increased serum urea and creatinine. Radiography demonstrated 21 radiopaque projectiles on the right side of the face. At necropsy there were multiple projectiles surrounded by fibrous tissue in the subcutaneous of the right side of the face, fibrinous peritonitis, multiple gastric ulcers, and melena. The lead dosage was performed using the atomic absorption spectrometry technique using renal tissue collected at necropsy, with a result of 908 ppb (µg/kg). The findings of projectiles associated with the dosage of lead above the reference limits allow the diagnosis of chronic intoxication in this case.
Post-release challenges: case report of parasitosis by Ancylostoma sp. in a giant anteater (Myrmecophaga tridactyla)
Authors: Silva J.M.M. , Desbiez A.L.J. , Kluyber D. , Castro V.G. , Naves J.H.F.F. , Hirano L.Q.L.
Published: July 2023

ABSTRACT The giant anteater (Myrmecophaga tridactyla) is classified as vulnerable to extinction. Here, we report the occurrence of ancylostomiasis in a young male Myrmecophaga tridactyla. The animal was raised from a puppy in captivity with management directed toward rehabilitation and monitored soft release. Five months after release, significant weight loss was noted in the individual, who was captured for examinations, with detection of Ancylostoma sp. in coproparasitological analysis. Although common in domestic carnivores, this is the first report of hookworm disease in free-ranging giant anteaters. Due to the stress factor arising from adapting to the challenges in the new environment, long-term post-release monitoring of animals undergoing rehabilitation is extremely important to increase the chance of survival of individuals. The giant anteater was released after treatment with vermifuge composed of fenbendazole, pyrantel pamoate, and praziquantel.
Effect of castration and vasectomy on some oxidative stress parameters and blood hormone levels in rats
Authors: Sancak T. , Kosal V. , Okulmus C.
Published: July 2023

ABSTRACT Vasectomy and castration are the most preferred surgical methods to control reproduction in males. While sexual functions are terminated reversibly in vasectomy, they are removed irreversibly in castration. After these processes, changes are observed in hormones and oxidative stress parameters. In this study, we investigated the effects of vasectomy and castration operations on blood follicle stimulating hormone (FSH), luteinizing hormone (LH), testosterone, nitric oxide (NO) and malondialdehyde (MDA) levels in rats. As a result of the analysis, it was determined that FSH, LH, NO, and MDA levels increased (p<0.05) and testosterone levels decreased (p<0.05) in the castration group compared to the sham and vasectomy groups. Considering the data obtained from the present study, when the two operations (vasectomy and castration) are compared in rats, which are preferred for the control of reproduction, it is thought that vasectomy is a healthier method because it is reversible, does not affect hormone levels, and does not increase oxidative stress.