bluuebunny/crossref_metadata_2025 huggingface dataset:
ABOUT PROBLEM OF DYNAMIC WORK OF FLOATING BRIDGES
Authors: К. I. Soldatov  , U. M. Gorbatyuk  , D. O. Kurilchenko
Published: December 2023

It is a review of several systems, previously tested on bridges of other design models, to determine frequencies and periods of own horizontal and vertical wavering (vibration) of floating bridges , which are extremely sensitive to dynamic effects. This publication shows the optimal method of calculations.
TO THE QUESTION ON ACCURACY OF CALCULATION BUILDING CONSTRUCTIONS
Authors: V. Artomov  , A. Raspopov
Published: December 2023

In the article major factors which lead to occurrence of errors in calculations of building designs are considered. Shortages and advantages of various methods of solution of linear algebraic sets of equations are enumerated.
THE REAL COSTS OF THE STRUCTURES
Authors: М. Kazakevitch
Published: December 2023

The presentation deals with the assessment of the structure real costs, i.e. structure ownership costs. Traditionally the costs comprise the optimum structure costs – the investigations, scientific research, construction, all passage element production, the structure approach arrangement including. At the same time the takes info consideration the exploitation expenses: the costs of the periodical reconditioning operations during the whale service life the costs of the structure railing element renovation due to the moral and/or physical depreciation and the profits reconditioning and restoring operation.
THE CAUSES OF THE GLOBAL AND LOCAL FAILURES OF THE CABLE-STAYED BRIDGES
Authors: М. Kazakevitch
Published: December 2023

The presentation deals with the major causes of the cable-stayed bridge failures in several direction: physical, mathematical and technological. These directions have been estimated in the presentation. The major disadvantages of the cable-stayed bridge are noticed. The sphere of the cable-stayed bridge rational employment is being discussed. The urgent problem of stabilization of the long-span cable-stayed bridges is also pointed out.
SPECTRAL CHARACTERISTICS OF SURFACE ELASTIC OSCILLATIONS OF HALF-SPACE WEAKENED BY A MODE I PENNYSHAPED CRACK
Authors: V. Skalsky  , Е. Stankevych  , V. Stankevych  , Yu. Matviiv
Published: December 2023

The solution of a dynamic problem for calculation of displacement field caused by internal mode I crack opening is presented. Based on boundary integral equations solutions it was revealed that a spectral characteristics ofhalf-space surface elastic oscillations depend on defect sizes.
THE COMPARATIVE CALCULATION OF THE CLASS OF THE REINFORCED CONCRETE SPAN OF THE RAILWAY BRIDGE
Authors: К. І. SOLDATOV  , М. К. Zhurbenko  , С. V. Klyuchnik  , А. V. Garmash
Published: December 2023

Two methods of determining the bearing capacity of the reinforced concrete span of the railway bridge are compared in this article (theoretical by considering the formwork drawings and the practical by considering the sag under the test load).
APPLICATION OF MICRO-TUNNELING AT CITY PERM
Authors: L. М. Timofeeva
Published: December 2023

In the article the problem of application of micro-tunneling under a railway embankment in city terms at intensive motion of transport in to city Perm.
DOUBLE COMPOSITE BRIDGES – THE MAIN CONCEPT AND EXAMPLES OF ITS IMPLEMENTATION
Authors: Pańtak М.
Published: December 2023

In the paper the issue of a double-composite steel-concrete bridges have been presented. The basic assumption of idea of double-composite structures have been discussed and examples of design solutions of selected bridges with double composite action constructed in Europe in 1992-2012 have been shown and characterized.
STUDY OF NATURAL OSCILLATIONS SPANS IVANCHITSKOGO VIADUCT
Authors: H. S. Zhelezniak  , K. I. Soldatov
Published: December 2023

In this paper, we studied the natural oscillations in the vertical and horizontal surface of viaduct of Ivanci. A number of schemes which allow determining the frequency on a more simple dependencies are given
EXPERIMENTAL AND THEORETICAL STUDIES WORK OF REINFORCED CONCRETE MINE TIGHTENING
Authors: К. І. Soldatov  , Y. L. Zayac  , V. І. Soroka
Published: December 2023

Purpose. Experience in operating various types of mine puffs indicates that most of them have insufficient bearing capacity, so the main goal of this work is to design and calculation of torque, which would be optimal in terms of cost and carrying capacity. Methodology. Selected for the study of experimental and theoretical methodology, which is based on a new form of tightening in a curved beam, a special method of calculation and experiments on samples prepared at the factory bridge of reinforced concrete structures with different parameters, both concrete and reinforcement on. Findings. The results of the calculations, tests on a significant amount of original size samples confirmed that this type of torque has a large bearing capacity compared to similar models in the form of a straight beam. Originality. In the publications in this area have similar patterns described above. The very design and calculation method is new. Practical value. This model already produces torque Pavlograd factory of reinforced concrete structures. In comparison with analogous rectilinear, it has the same value, and the carrying capacity of 50...100 % greater, and has no tendency to sudden failure, which is very important from a safety standpoint.
APPLICATION OF FLOATING BRIDGES AT THE PRESENT STAGE OF THE ARMED FORCES OF UKRAINE
Authors: Y M GORBATYUK  , V M YARMOLYUK  , М S ARTEMYEV
Published: December 2023

Purpose. Study of structural elements of a floating bridge (pontoons, beam structures). Methodology. These are the examples regarding the usefulness and adoption of certain decisions pursuant to the original data on the ground. Findings. Thanks to the results obtained in such situations is a quick, correct and accurate response to emergency situations that may occur and continue to occur in the zone of ATO. It refers to the building of crossings over water obstacles in the vicinity (in traversal) to completely or partially destroyed damaged bridges. Originality. Testing and application of new concepts according to strict specifications of restoration of transport facilities. is being set up. Practical value. The research results are applied in the reconstruction renewal of bridges in the area of ATO.
COMPUTER TRANSFORMATIONS OF CORRECT POLYHEDRA (BODIES OF PLATO) TO THE SEMICORRECT POLYHEDRONS (BODIES OF ARCHIMED), BY THE DINT OF AUTOCAD SYSTEM ON THE EXAMPLE OF HEXAHEDRON AND OKRAHEDRON
Authors: А V KRASNYUK  , N P BOCHAROVA
Published: December 2023

Purpose. To probe interaction of correct polyhedra, to form new, semicorrect forms. To get the formulas of correlations and visual images of polyhedra. Methodology. Researches were conducted by a spatial design in the AutoCAD system. Findings. Certain correlations of sizes and mutual location of bodies of Plato are found – hexahedron and octahedron, at which the bodies of Archimedes are forming. There are truncated hexahedron, truncated octahedron, hexaoktahedron, rombohexaoktahedron, psevdorombohexaoktahedron and truncated hexaoktahedron. The sequence of constructions is expounded, the visual images of the studied objects are got. Originality. In spite ofthe fact that polyhedra were studied by humanity from times of Plato, the use of computer technologies allows to consider the offered theme from the new point of view. Creating polyhedra as hardbodies models, we have got possibility to trace the process of transformation of correct polyhedra in semicorrect. Calculations, resulted in the article, does not meet in literature, consequently offered first. Practical value. It is known that multifaceted forms are widely use in architecture. However, images of polyhedra, executed the methods of engineering graphic arts, areperceived rather difficultly. Therefore the making of spatial models of polyhedra is actual. And the use of computer technologies considerably reduce operating time and gives practically unlimited possibilities of visualization. Materials of the article also can be recommended for the study of stereometry and descriptive geometry.
QUASILINEAR GRAPHIC MODELS OF SPACE
Authors: А D MALYI  , YU YA POPUDNIAK  , Т V ULCHENKO  , Т V STAROSOL’SKA
Published: December 2023

Purpose. The aim of this work is to study quasilinear space models. Methodology. Questions of space modeling, including the construction of graphical models of planar space are actual both in theoretical terms and in terms of their application investigated on basis of nonlinear surfaces to construct forms of technical details and units of construction machinery, middle surfaces of shells, turbulent surfaces of the blades etc. Findings. The article solves the following problems: 1. what requirements must satisfy projecting curves as well as what type of curves can be used to create a quasi-linear model of the space; 2. spatial transformation generated by kvazimodelyu convert twoJoint-substituted spaces and filed constructive ways to implement this transformation on the diagram Monge were investigated. Practical value. The considered conversion of space can be used for the construction of technical forms, surfaces of complex parts and designs for the construction of tunnels and bridges.
ANALYSIS OF DEFORMED STATE STRUCTURES KIEV SUBWAY TUNNELS ON AN AREA OF TRANSITION FROM SPONDYLOV’S CLAY TO BUCHATSKIY SANDS
Authors: V D PETRENKO  , O L TYUTKІN  , YE YU KULAZHENKO
Published: December 2023

Purpose. The considerable deformations of construction of running and station tunnels on the area of substantial change of engineering and geological terms may be arise. It is necessary to expose the reason of development of deformations, to develop the ways of its minimization and on the basis of design and calculations and to find out possibility of change of axis to the tunnel relatively to the engineering-geological terms. Methodology. For the decision of the deformed state analysis problem of the system «construction-array» the numeral analysis by using the finite element method (FEM) is conducted. On the basis of the got results the graphs are built and dependences of tunnels support deformation at the substantial change of engineering and geological terms are established. Findings. The presence of the weak watersatured soils in tray part of tunnels at the substantial change of engineering-geological terms causes the increase of deformations of tunnels construction, and also vibrodeformations in the ground bases. In addition, the change of physical and mechanical characteristics of soilswithin the limits of support of tunnels considerably influences on the level of the supports deformed state. The improvement of the deformed state of tunnels support on the areas of change of soils characteristics surrounding array (especially lay of support) can be attained by the chemical fixing of weak soils or common change of tunnelaxis in a plan and profile in order to maximally use durability and stability of soil layer with biggest deformation characteristics. The choice of decision from two resulted variants of increase of operating characteristics of running tunnel support of his durability and decreasing of between repair terms follows to ground with bringing in ofeconomic calculations. Originality. The principal reason of considerable deformations on the area of transition from clays to sands is exposed, that is explained by the phenomenon of the watersatured base vibrodeformations under a tunnel. Practical value. Offered approaches on diminishment of deformations at building of running tunnels of Kievunderground passage at the substantial change of engineering and geological terms.
STUDY DESIGN WORK COMPOSITE OF OVERPASS
Authors: P STASHYK  , R POLYUGA  , А Р БУГЕРА  , А В ТАНСЬКИЙ
Published: December 2023

Purpose. Scientific research of life cycle prediction model of road bridges. Methodology. Full-scale surveys. Findings. Tests showed that the overpass was built stalezalizobetonna individual design is able to perceive thedesign load A-11 and HK-80. Originality. Tests bridge conducted using acoustic emission method showed that at the test load, it does not appear defects whose development is threatening structures span bridge. Practical value. Satisfactory convergence of theoretical and experimental results indicate the reliability of the calculations span bridge.
GENETIC ALGORITHMS IN OPTIMIZATION OF A STRATEGY BRIDGES REPAIR
Authors: L BODNAR
Published: December 2023

Purpose. Scientific research of the model life cycle optimization of the road bridges. Methodology. Theoretical study. Findings. Developed genetic optimization model of the life cycle. Originality. For the first time proposes a new genetic model of optimization in the management of the life cycle of the bridge. Practical value. The model is implemented in AESUM for strategic planning operationof concrete elements of road bridges.
PRACTICAL ENGINEERING METODOLOGY RESOURCE ASSESSMENT CONCRETE BRIDGE ELEMENTS IN THE DESIGN PROCESS
Authors: F. V. YATSKO
Published: December 2023

Purpose. Scientific research of life cycle prediction model of road bridges. Methodology. Theoretical study. Findings. The principal possibility of using the lifetime prediction model for reinforced concrete elements whendesigning for the specified service life. Originality. The lifetime prediction model for reinforced concrete elements for the specified service life at all stages of the life cycle, starting from the design is proposed. Practical value. A practical engineering service life evaluation technique for reinforced concrete bridge elements in the design process.
ASSESS THE STABILITY OF NATURAL SLOPES OF MATHEMATICAL MODELING IN THE "OTKOS"
Authors: V. D. PETRENKO  , O. L. TIUTKIN  , О. I. DUBINCHIK  , V. R. KILDIEIEV
Published: December 2023

Purpose. Identification and comparison of parameter stability of landslide slope different methods in the "OTKOS." Methodology.  To achieve this goal reviewed and analyzed the factors that affect the stability of repose section devoted to the Green Grove Park in Dnepropetrovsk. Findings. Defined parameters calculated shear stability, factor of stability, coordinate end surface of the slide. Originality. Got mo-configured to predict the behavior of natural slopes and artificial slopes in the process of development and economic activities. Practical value. Defining the parameters of slope stability can decide on the choice of location of buildings and design measures to protect the process of landslides on the slopes.
THE INFLUENCE OF REPEATED STATIC LOADING ON CFA-PILE SETTLEMENT
Authors: V. L. SEDIN  , Е. М. BIKUS  , V. V. KOVBA
Published: December 2023

Purpose. To investigate the influence of repeated static preloading on CFA-pile settlement.  To conduct two cycles of large diameter CFA-pile field tests with pressing loading after a stress-relief period. Methodology. The first pile preloading was performed after a 28-day stress relief period, the repeated pile preloading - in 26-day period. Plastic strains have become evident after the first cycle. In the course of the second cycle ‘settlement-load’ curve shows linear dependence on a definite index, when the loading is Pmax in the first cycle the settlement is 1/5 of the total. After repeated static pile loading, maximum pile load capacity has increased by 27% whereas its settlement has decreased by 12 %. Originality. New field tests results of the influence of repeated static loading on a CFA-pile settlement have been obtained. Practical value. The repeated static pile loading enables to determine the ultimate bearing capacity under certain engineering and geological conditions since the loading is performed until the pile is collapsed. It makes also possible to eliminate soil weakening under the pile heel due to technological fabrication features of continuous flight augering piles.
THE EFFECT OF MAN-MADE MICROFILLERS ON THE STRENGTH OF ADHESION TO THE BASE OF THE SOLUTION OF THE DRY CONSTRUCTION MIXTURE
Authors: PETROV A. M. , SHEPTUN S. Y.
Published: December 2023

Purpose. The study consists in increasing the adhesion of a cement-based dry mortar to a concrete base by modifying the composition with microfine waste from industrial production. When using microfine fillers of technogenic origin, the cost of production should decrease, the energy efficiency of production will increase, and the technogenic impact on the environment will decrease. Methodology. The study of dry mixtures for the installation of poured floors was carried out in accordance with DSTU B V. 2.7-126:2011 "Modified dry construction mixtures. General technical conditions". The basis was a cement-based dry building mix with the composition: cement, quartz sand, plasticizer, Bermocoll cellulose, redispersed copolymer powder. As modifiers: sludge from the wet gas cleaning of the ferrosilicon production of the Zaporizhia Ferroalloy Plant, water softening sludge from the Kharkiv Heat and Power Plant, expanded clay dust from the Kharkiv expanded clay plant. Findings. The dependence of the strength of adhesion with the base of the samples on the amount and type of microfillers of technogenic origin has been established. The effect of water softening sludge and expanded clay dust on the strength of adhesion to the base is analyzed. Originality. The impact of incorporating microdispersed fillers such as wet gas desulfurization sludge from ferrosilicon production, expanded clay dust, and water softening sludge into a cement-based dry construction mixture for self-leveling floors has been studied. Practical value. The use of industrial waste in warehouses of dry construction mixes for bulk floors helps to simultaneously reduce the harmful impact on the environment by industrial enterprises and increase the mechanical and economic indicators of cement mortars. When adding expanded clay dust and sludge from wet gas cleaning of ferrosilicon production, the contact zone between the solution and the concrete base increases. As a result, the adhesion strength of the solution to the base increases.
Towards controlling the morphology of cobalt loaded nanocomposites in polyol process with polyethylene glycol
Authors: Burmatova Anastasia , Khannanov Artur , Zubaidullina Liana , Emelianov Dmitry , Mostovaya Olga , Stoikov Ivan , Ulakhovich Nikolay , Kutyreva Marianna
Published: December 2023

The polyol process is one of the simple, efficient and productive methods for the synthesis of metal loaded polymer composites. Functional properties of metal-polymer nanocomposites are determined by chemical composition, size and morphology of their particles. Finding effective ways to control the nanoparticle's properties during the polyol process is a crucial task. The effect of molar ratio Mn+/OHPEG on the formation of cobalt loaded metal-polymer nanocomposites during a one-pot two-component polyol process by polyethylene glycol with Mr = 4000 g·mol–1 (PEG) was studied. The PEG-based polyol process and the formation of cobalt nanophase were studied at molar ratios νCo2+/νOH(PEG) = 1:1, 1:10, 1:100 and 1:500 using UV-Vis, diffuse reflectance IR and ATR FT-IR spectroscopy, nanoparticle tracking analysis (NTA), dynamic light scattering (DLS). It was found that PEG can act as a reducing agent and stabilizing matrix for the cobalt nanophase at a ratio higher than Mn+/OHPEG= 1:10. The composition and morphology of Co/PEG nanocomposites were determined by XRD and TEM methods. Two types of spheroid particles with average diameters of 88±55 nm / 8±4 nm and 12±3 nm / 3±1 nm, respectively, represent Co/PEG nanocomposites 1:500 and 1:100. Scaly structures with a diameter of 15±5 nm are formed at a molar ratio of νCo2+/νOH(PEG) = 1:10. An increase in the Co2+ content in the PEG-based polyol process leads to the immobilized cobalt nanophase Co3O4 (1:500), Co0/CoO (1:100), CoO (1:10) in PEG. Co/PEG nanocomposites are hemocompatible. The HC50value depends on the composition and morphology of the nanoparticles.
Proximate Analysis of Mierspenaeopsis sculptilis (Heller, 1862) Collected from the NW Coast of Bay of Bengal – A Case Study Based on Selected biochemical Variables
Authors: Mukherjee Abhishek , Das Subhajit , Ghosh Phani Bhusan , De Tarun Kumar
Published: December 2023

A preliminary proximate study was performed to estimate the total carbohydrate content, total protein content, total lipid content and percentage of moisture content of one of the commonly available but often undermined shrimp species Mierspenaeopsis sculptilis (formerly Parapenaeopsis
sculptilis Heller, 1862). The samples of rainbow shrimps, as they are commonly called, were collected from Frasergunj fish landing sites of West Bengal. The specimens were divided into three segments for the analyses. The cephalic part of the body along with appendages and the rest of
the body with appendages formed the primary two, with the exoskeleton constituting the third segment. During the study, it was observed that among all the individuals TP was higher in the cephalic parts (29.54±3.44 μg. ml-1); TC was higher in the exoskeletons (26.23 ±
2.52 μg. ml-1) and samples from the rest of the body maintained higher concentration of TL (269.15 ± 33.59 g. Kg-1). The study was aimed at providing impetus to a sustainable aquaculture of this shrimp.
Bringing the mother’s struggle to protect their adolescents in socially vulnerable areas
Authors: Carvalho Marielle Cristina Ribeiro de , D’Souza-Li Lilia
Published: December 2023

Abstract: Objective: To analyze the dynamics in the relationship between mothers and adolescents living in an area of social vulnerability. Methods: We conducted 3 focus groups in socio-economic poor area. Results: Based on the analysis of the focus groups, we traced five secondary categories. The central phenomenon was Struggling to protect their adolescents. Conclusion: The lack of fulfillment of the basic physiological needs, and the worries with their adolescent children impacted the mothers’ well-being.
THE WATER-SOLUBLE CONTRAST FOR ADHESIVE SMALL BOWEL OBSTRUCTION: ARE THERE ADVANTAGES?
Authors: VON-DIEMEN Vinicius , VOLKWEIS Bernardo Silveira , MARTINS Eduardo Ferreira , SILVA Lara Luz de Miranda , CAVAZZOLA Leandro Totti
Published: December 2023

ABSTRACT BACKGROUND: Adhesive small bowel obstruction is one of the most common causes of surgical emergencies, representing about 15% of hospital admissions. Defining the need and timing of surgical intervention still remains a challenge. AIMS: To report the experience of using meglumine-based water-soluble contrast in a tertiary hospital in southern Brazil, comparing with the world literature. METHODS: Patients suspected of having adhesive small bowel obstruction, according to their clinical conditions, underwent an established protocol, consisting of the administration of water-soluble contrast, followed by plain abdominal radiograph within 12 hours and by a new clinical evaluation. The protocol was initiated after starting conservative management, including fasting and placement of a nasogastric tube, as well as intravenous fluid reposition. RESULTS: A total of 126 patients were submitted to the protocol. The water-soluble contrast test sensitivity and specificity after the first radiograph were 94.6 and 91.0%, respectively; after the second radiograph, these values were 92.3 and 100%. The general test values for sensitivity and specificity were 91.9 and 100%, respectively. CONCLUSIONS: The measure parameters evaluated in this study were similar to those found in the literature, contributing to endorse the importance of this test in the evaluation of patients with adhesive small bowel obstruction. The particular relevance of this study was the similar results that were found using a different type of meglumine-based contrast, which is available in Brazil.
ACUTE ABDOMEN IN INTENSIVE CARE UNIT: ETIOLOGY, COMORBIDITY AND SEVERITY OF 1,523 PATIENTS
Authors: ALMEIDA FILHO Geraldo Fernandes de , SILVA Pedro Paulo Costa e , VALVERDE FILHO Murilo Tavares , MORAIS Maria Clara Alves , CHAGAS Paulo Bravo de Oliveira , D’OLIVEIRA Ricardo Azevedo Cruz , CODES Liana , BITTENCOURT Paulo Lisboa
Published: December 2023

ABSTRACT BACKGROUND: Clinical features and outcomes of patients admitted to the intensive care unit due to acute abdomen are important to be investigated. AIMS: To evaluate the outcomes of critically ill subjects with acute abdomen according to etiology, comorbidity and severity. METHODS: Outcomes of 1,523 patients (878 women, mean age 66±18 years) consecutively admitted to a specialized gastrointestinal intensive care unit with different causes of acute abdomen from January 2012 to December 2019, were retrospectively evaluated according to etiology, comorbidity and severity. RESULTS: The most common causes of acute abdomen were obstructive and inflammatory, particularly large bowel obstruction (27%), small bowel obstruction (18%) and acute pancreatitis (17%). Overall mortality was 13%. Surgery was required in 34% of patients. Median length of stay in the hospital was 9 [1-101] days. On univariate analysis mortality was significantly associated with age, APACHE II, Charlson comorbidity index, requirement for surgery and malignancy (p<0.0001), but only APACHE II, Charlson comorbidity index and surgical interventional remained significant on multivariate analysis. CONCLUSIONS: Critically ill patients admitted to the intensive care unit with acute abdomen constitute a heterogeneous group of subjects with different prognosis. Mortality is more related to the severity of the disease, comorbidity and need for surgery than to the etiology of the acute abdomen.
LAPAROSCOPIC SLEEVE GASTRECTOMY VERSUS LAPAROSCOPIC ROUX-EN-Y GASTRIC BYPASS FOR WEIGHT LOSS IN OBESE PATIENTS: WHICH IS MORE EFFECTIVE? A SYSTEMATIC REVIEW AND META-ANALYSIS
Authors: GARCÍA-HONORES Laura , CABALLERO-ALVARADO Jose , BUSTAMANTE-CABREJOS Alexander , LOZANO-PERALTA Katherine , ZAVALETA-CORVERA Carlos
Published: December 2023

ABSTRACT BACKGROUND: Bariatric surgery is the most effective option to reduce weight in morbid obesity patients. The techniques most employed are the restrictive surgery laparoscopic sleeve gastrectomy (LSG), surgical procedures of intestinal malabsorption, and both types (restrictive and intestinal malabsorption) such as the Roux-en-Y laparoscopic gastric bypass (RYLGB). AIMS: To determine if LSG is more effective than RYLGB for weight loss. METHODS: A systematic review and meta-analysis was carried out, including five clinical trials and sixteen cohorts comparing LSG versus RYLGB in weight loss and secondary outcomes: resolution of comorbidities, postoperative complications, operative time, hospital stay, and improvement in quality of life. RESULTS: Excess weight loss was 10.2% (mean difference [MD] 10.2; 95%CI -10.14; -9.90) higher in patients undergoing LSG than in patients submitted to RYLGB. Diabetes mellitus type 2 was resolved in 17% (relative risk [RR] 0.83; 95%CI 0.77–0.90) of cases, more significantly after LSG, arterial hypertension in 23% (RR 0.77; 95%CI 0.69–0.84), and dyslipidemia in 17% (RR 0.83; 95%CI 0.77–0.90). Postoperative complications were 73% higher in patients undergoing RYLGB (MD 0.73; 95%CI 0.63–0.83). The operative time was 35.76 minutes shorter in the LSG (MD -35.76; 95%CI -37.28; -34.24). Finally, the quality of life improved more in patients operated by LSG (MD 0.37; 95%CI -0.48; -0.26). CONCLUSIONS: The study demonstrated that LSG could be more effective than RYLGB in reducing the percentage of excess weight, comorbidities, postoperative complications, operative time, hospital stay, and in improving quality of life.
PERORAL ENDOSCOPIC MYOTOMY FOR ACHALASIA: SAFETY PROFILE, COMPLICATIONS AND RESULTS OF 94 PATIENTS
Authors: PRADO JUNIOR Francisco Paulo Ponte , MACHADO Ivens Filizola Soares , PRADO Maria Paula Lopes Ponte , LEITE Renato Bruno Cavalcante , GURGEL Samuel Magalhães , GOMES José Walter Feitosa , GARCIA José Huygens Parente
Published: December 2023

ABSTRACT BACKGROUND: Achalasia is an esophageal motility disorder, with clinical presentation of dysphagia and regurgitation. This is a chronic condition with no cure. Current treatment options aim to reduce lower esophageal sphincter tone by pharmacological, endoscopic or surgical means, with the aim of improving patients’ symptoms. Peroral endoscopic myotomy (POEM) is an alternative endoscopic surgery to Heller cardiomyotomy, in which the procedure is performed orally, by endoscopy, offering efficacy comparable to surgical myotomy, with relative ease and minimal invasion, without external incisions. AIMS: To study the safety of POEM by analyzing its results, adverse events and perioperative complications and the main ways to overcome them, in addition to evaluating the effectiveness of the procedure and the short-term postoperative quality of life. METHODS: A qualitative and quantitative, observational and cross-sectional study that analyzed patients who underwent the POEM in a reference center, from December 2016 to December 2022, maintaining the technical standard of pre-, peri- and postoperative protocol. RESULTS: A total of 94 patients were included in the study, and only three had postoperative complications. The average early postoperative Eckardt score was 0.93 and the late 1.40, with a mean improvement of 7.1 in early results and 6.63 in late results (p<0.05). CONCLUSIONS: POEM can be reproduced with an excellent safety profile, significant relief of symptoms and improvement in esophageal emptying, and in quality of life.
Responsividade e comunicação parlamentar: uma investigação sobre os deputados federais brasileiros
Authors: Franklin Luiza Amalia Soares , Ferreira Marco Aurélio Marques , Campos Ana Paula Teixeira de
Published: December 2023

Resumo: Este estudo teve como objetivo verificar a relação entre atributos específicos de legisladores federais e seu grau de responsividade na comunicação com cidadãos por e-mail. Para tanto, foi levantado o perfil dos 125 deputados federais que participaram de um experimento, e testes de tabulações cruzadas foram adotados para averiguar a relação do nível de responsividade e as características dos parlamentares. Por repetição, observou-se um perfil responsivo: homem; em sua primeira gestão como deputado federal; com mais de 50 anos e ensino superior completo; vindo da região sudeste (mais especificamente de São Paulo); membro de um partido representativo na Câmara; e que defenda interesses empresariais, de parentes na Casa e sindicais. Conclui-se que o distanciamento entre a população e a Câmara se fortalece diante desse cenário, o que pode lesar a credibilidade da Câmara dos Deputados e da democracia.
O crime é político: elementos teóricos para uma análise neoinstitucionalista das milícias no Rio de Janeiro
Authors: Lins Igor Novaes , Machado Carlos Augusto Mello
Published: December 2023

Resumo: O crime organizado depende de permissões de agentes estatais para funcionar. As milícias, nosso objeto específico, vão além da permissividade do Estado e são compostas diretamente pelas instituições estatais. Mas, do ponto de vista da ciência política, o que é o crime organizado ainda não está claro. Nós entendemos a natureza das milícias como essencialmente política e que envolve disputas políticas com instituições estatais. A partir da teoria neoinstitucionalista, notadamente as linhas criativa e histórica, mesclamos explicações do processo de institucionalização das milícias por duas vias: a institucionalização através de uma autoridade prática, isto é, uma legitimidade construída pelas milícias através da sua atuação no campo da segurança pública nos territórios do Rio de Janeiro; o legado institucional dos grupos de extermínio como definidor da sua materialização.
Clientelismo e descentralização do imposto sobre terras rurais no Brasil
Authors: Caldeira Thiago Costa Monteiro , Moreira Tito Belchior Silva , Silva Thiago Christiano
Published: December 2023

Resumo: Este artigo avalia se a gestão municipal no Brasil do imposto incidente sobre terras rurais, o ITR, é afetada por ser o prefeito um ruralista. A hipótese de clientelismo indicaria que o prefeito ruralista tenderia a favorecer seus pares ao manter o estado de elevada sonegação e baixa arrecadação. Com dados municipais para o período de 2009 a 2016 e uso de método de diferenças em diferenças, os resultados indicam que os prefeitos ruralistas comportam-se de forma parecida com os prefeitos não ruralistas em termos de intensidade de esforço de cobrança e fiscalização do imposto, exceto na região Nordeste, em que se identificou que ser o município gerido por prefeito ruralista reduz em 13,58% a arrecadação do ITR, confirmando estudos anteriores que indicam maior existência de práticas clientelistas nessa região.
Influence of low and medium intake supplements in the growing phase of steers grazing in the tropical pasture and finished in feedlot
Authors: Missio Regis Luis , Souza Saimon de Souza e , Paris Wagner , Cavazzana Jefferson Felipe , Severo Marcelo Machado , Severo Igor Kieling , Poggere Julia Maria , Costa Olmar Antônio Denardin , Borquis Rusbel Raul Aspilcueta , Menezes Luis Fernando Glasenapp de
Published: December 2023

ABSTRACT: The objective was to evaluate the animal production and ingestive behavior of the steers fed different supplements during the growth phase in Aruana grass, and the influence of this supplementation on production performance in feedlot phase. The treatments consisted of three supplements during the growing phase: mineral salt (0.12 g/kg of body weight - BW), low intake energy-protein supplement (1.26 g/kg of BW), and medium intake (3.76 g/kg of BW). Forage canopy characteristics, animal production, and animal behavior on pasture were evaluated in a completely randomized design with three replicates (paddocks). The titanium dioxide marker was used to determine the intake and apparent digestibility during the pasture phase. The production performance in feedlot was evaluated in a completely randomized design with eight replicates (animals). Twenty-four Aberdeen Angus steers (15 ± 1.5 months old; 364.8 ± 21.7 kg BW) were used. At the end of the growth phase the animals were confined and fed a single diet. Dry matter, crude protein, and neutral detergent fiber (NDF) contents of forage and intake were not influenced by the treatments. The average daily gain was higher for the medium intake supplement in pasture phase. The apparent digestibility of NDF (P = and chewing rate were higher for the medium intake supplement. The average daily gain and fat thickness of carcasses were higher for the medium intake supplement in the feedlot phase. The supplements of medium intake increase animal productivity during the growing phase on pastures and cattle’s finishing performance in intensive production systems.
Chromium and feed restriction as alternative strategies to ractopamine in finishing pigs
Authors: Abreu Rodrigo Caetano de , Kiefer Charles , Nascimento Karina Márcia Ribeiro de Souza , Corassa Anderson , Marçal Danilo Alves , Alencar Stephan Alexander da Silva , Rodrigues Gabriela Puhl , Farias Taynah Vieira Aguiar , Santos Tânia Mara Baptista dos
Published: December 2023

ABSTRACT: This study evaluated chromium and quantitative and qualitative feed restriction as alternative nutritional strategies to ractopamine in finishing barrows. Fifty barrows, genetically similar, with an initial body weight of 99.0 ± 4.3 kg and a final body weight of 117.2 ± 5.8 kg were used. The animals were distributed in a randomized complete block design with five nutritional treatments (Control; Rac = 10ppm ractopamine; Chromium = 0,8mg chromium yeast; Quality = qualitative restriction, 7.5% less net energy in the diet; Quanti = 15% quantitative reduction in feed supply), with five replicates and two animals per replicate. Chromium supplementation and quantitative feed restriction reduced feed, lysine, net energy, and crude protein intakes (P < 0.05). Chromium, ractopamine, and quantitative restriction improved feed conversion (P < 0.05). Supplementation with chromium and ractopamine and feed restriction did not influence the carcass characteristics of the pigs (P < 0.05). Quantitative feed restriction and supplementation of 0.8mg of chromium yeast are presented as potential alternatives to ractopamine in the diet of finishing pigs.
Mathematical models for adjustments in the quantification of ammonia volatilization from urea fertilizer applied on tropical pastures
Authors: Longhini Vanessa Zirondi , Ítavo Luís Carlos Vinhas , Gurgel Antonio Leandro Chaves , Cardoso Abmael da Silva , Boddey Robert Michael , Difante Gelson dos Santos , Dias Alexandre Menezes , Ítavo Camila Celeste Brandão Ferreira , Silva Gabriel de Souza Lombardi da , Ruggieri Ana Claudia
Published: December 2023

ABSTRACT: In Brazil, urea is the most used nitrogen (N) fertilizer to improve forage production. However, their excessive use can cause environmental impacts through N losses, such as ammonia (NH3) volatilization. Therefore, the current study adjusted and estimated the NH3 volatilization from urea applied on tropical pastures in three rainfall conditions using mathematical models. Data were collected from Marandu grass (Brachiaria brizantha) fertilized with 50 kg N ha-1 during wet, intermediate, and dry conditions. Ammonia volatilization was measured in five semi-open chambers for 21 days. The linear, quadratic, exponential, Gompertz, Groot, and Richards models were tested for fitting and estimating the NH3 volatilization. The Gompertz, Groot, and Richards models generated predictions similar to the observed data, with a high determination coefficient, indicating a better fit of these equations to data, with precision and accuracy. However, the Groot model was selected due to the lowest root mean square error of prediction (0.29 % total N lost as NH3). The greatest N loss as NH3 volatilization occurred in the wet, followed by intermediate and dry conditions (20.2, 17.0, and 11.3 % total N lost as NH3, respectively). Therefore, nitrogen losses as NH3 volatilization after application of 50 kg N ha-1, as urea source, are altered according to the weather conditions, reaching 20% of N added in the wet rainfall period. The Groot model is recommended for fitting and estimating the NH3 volatilization from urea applied on Marandu grass pastures in the wet and dry rainfall conditions.
Reuso de cinza de lenha de algaroba como fíler calcário alternativo no desenvolvimento de cimento LC3
Authors: Bezerra G. G. , Queiroz M. G. C. de , Oliveira M. A. A. de , Marinho E. P. , Lima N. B. , Nóbrega A. C. V. da
Published: December 2023

Resumo A incorporação de materiais alternativos em substituição parcial ao clínquer é estudada afim de diminuir a emissão de CO2 que ocorre na produção do cimento Portland. Analisou-se a influência do uso da cinza de algaroba como fíler alternativo em pastas de cimento LC3. O teor de álcali do sistema foi ajustado lavando a cinza e, assim, reduzindo o teor de potássio. O fíler foi substituído em 0, 25%, 50%, 75% e 100% de cinza lavada e o mesmo para cinza não lavada. A subsulfatação foi corrigida adicionando-se uma porcentagem de gesso extra. O desempenho da pasta foi avaliado pela reologia e resistência à compressão, sustentada pela cinética de hidratação e desenvolvimento microestrutural. A cinza de algaroba é um potencial fíler alternativo para aplicação em LC3. A cinza lavada torna o sistema mais puro, contribuindo na hidratação e desempenho mecânico, entretanto, a cinza natural também traz resultados promissores.
Associação entre consumo de marcadores alimentares, orientação nutricional e número de refeições em usuários da ESF
Authors: Zanini Roberta de Vargas , Almeida Lana Carneiro , Santos Leonardo Pozza dos
Published: December 2023

Resumo Introdução: O número de refeições/dia tem sido associado a uma alimentação saudável, mas há controvérsias sobre a direção dessa associação. A orientação nutricional, estratégia essencial para construção de estilos de vida saudáveis na população atendida pela Estratégia Saúde da Família, pode ser fundamental nessa relação. Objetivo: Verificar se o consumo regular de marcadores alimentares está associado ao número de refeições diárias e ao recebimento de orientação nutricional. Método: Estudo transversal realizado com usuários da Estratégia Saúde da Família de um município gaúcho. Consumo regular de marcadores alimentares e características nutricionais (número de refeições/dia e recebimento de orientação nutricional) foram avaliados por aplicação de questionário. A associação entre características nutricionais e consumo regular de marcadores alimentares foi analisada utilizando-se regressão de Poisson. Resultados: Dos 529 indivíduos analisados, 2/3 referiram realizar de três a quatro refeições/dia e 30% afirmaram ter recebido orientação nutricional. A frequência de consumo regular de marcadores alimentares variou de 1,7% para frituras a quase 60% para feijão. Indivíduos que receberam orientação nutricional apresentaram menor prevalência de consumo regular de doces e refrigerantes (RP=0,64; IC95% 0,43–0,97). Número de refeições/dia foi positivamente associado ao consumo de lácteos; frutas e hortaliças; frituras, embutidos e salgados. Para os dois últimos grupos, observou-se associação apenas para quem não recebeu orientação nutricional. Conclusões: Os resultados sugerem que consumo regular de marcadores alimentares se associa com recebimento de orientação nutricional e número de refeições.
Omissão do café da manhã entre adolescentes brasileiros: resultados da PeNSE 2012 e 2015
Authors: Santos Poliana Azevedo , Rodrigues Paulo Rogério Melo , Moreira Naiara Ferraz , Muraro Ana Paula
Published: December 2023

Resumo Introdução: São restritos os estudos que apresentam estimativas com representatividade nacional sobre omissão do café da manhã entre adolescentes brasileiros. Objetivo: Estimar a prevalência da omissão do café da manhã entre estudantes adolescentes brasileiros, segundo características sociodemográficas, nos anos de 2012 e 2015. Método: Análise realizada com os dados da Pesquisa Nacional de Saúde do Escolar, com escolares do 9º, ano nos anos de 2012 e 2015. Foi estimada a prevalência de omissão do café da manhã (consumo por menos de cinco dias por semana), segundo sexo, faixa etária, dependência administrativa da escola e região do país, considerando o desenho complexo da amostra. Resultados: A prevalência de omissão do café da manhã verificada foi de 38,1% em 2012 e 35,6% em 2015, sendo mais elevada entre meninas e estudantes de escolas privadas. A omissão dessa refeição foi mais elevada entre os escolares das regiões Sul, Sudeste e Centro-Oeste. As capitais brasileiras pertencentes às regiões Sul e Centro-Oeste apresentaram as maiores prevalências de omissão do café da manhã. Conclusões: Não houve alteração significativa da prevalência de omissão de café da manhã entre os dois inquéritos realizados, sendo maior a sua omissão entre as meninas, estudantes de escolas públicas e de regiões mais desenvolvidas.
Continuidade do cuidado aos egressos hospitalares da COVID-19: novos e antigos desafios para o enfrentamento da pandemia no Brasil
Authors: Silva Thais Botelho da , Shimocomaqui Guilherme Barbosa
Published: December 2023

Resumo Trata-se de um debate acerca dos desafios da continuidade do cuidado relativo às ações de reabilitação aos egressos hospitalares da COVID-19. O elevado número de internações hospitalares e as limitações funcionais decorrentes dessa doença geram necessidades de cuidado em serviços de reabilitação no nível secundário e na Atenção Básica. No Sistema Único de Saúde (SUS), essa modalidade de cuidado historicamente foi vinculada à política da pessoa com deficiência, e apesar de haverem alguns avanços para a construção da Rede de Cuidados, ainda existem barreiras de acesso aos serviços. Isso, somado aos retrocessos que o SUS vem sofrendo, à ausência de planejamento adequado, e às dificuldades para a utilização das Tecnologias da Informação e Comunicação são os principais desafios para a continuidade do cuidado aos egressos da COVID-19. Neste cenário, é fundamental a indução de políticas públicas e programas de saúde a fim de aprimorar as ações em reabilitação, qualificar as práticas de cuidado e estabelecer uma rede de cuidados articulada que consiga dar conta das novas demandas. Para tanto, o fortalecimento do SUS e da Atenção Básica devem ser a aposta principal para a mitigação da pandemia e seus impactos sociais.
Encarceramento feminino e bases legais da atenção à saúde da mulher privada de liberdade no Brasil
Authors: Aquino Lidiane Castro Duarte de , Cruz Danielle Teles da
Published: December 2023

Resumo Introdução: O encarceramento feminino cresceu de forma significativa nos últimos anos. As condições impostas pelo cárcere podem culminar em agravos à saúde, o que poderia ser minimizado com a efetiva implementação de políticas de saúde no sistema prisional. Objetivo: O artigo tem como objetivo tecer reflexões acerca das bases legais da atenção à saúde das mulheres em privação de liberdade no Brasil, tendo como plano de fundo o conceito ampliado de saúde. Método: Através de revisão da literatura, foram traçados os principais marcos no que tange à garantia do direito à saúde das mulheres privadas de liberdade. Também foram apontados aspectos relevantes do encarceramento feminino no Brasil bem como reflexões acerca das particularidades encontradas no sistema prisional que culminam na negação do direito à saúde das mulheres acauteladas, contexto este que se configura como um grande desafio para a Saúde Pública contemporânea. Resultados e conclusões: Com base nesta análise, podemos verificar que mesmo diante dos dispositivos legais, a saúde da mulher privada de liberdade vem sendo duramente negligenciada, o que aponta para a necessidade de mudanças de caráter emergencial nos modelos assistenciais das unidades prisionais, em consonância com princípios e diretrizes do Sistema Único de Saúde (SUS).
Diagnóstico da infecção pelo Toxoplasma gondii em gestantes de fronteira brasileira, Foz do Iguaçu
Authors: Silva Déborah Lima da , Peres Michelli Mara , Barbosa Marília Gabriela Reis , Moreira Neide Martins
Published: December 2023

Resumo Introdução: O Toxoplasma gondii, parasito intracelular obrigatório, é o agente etiológico da toxoplasmose, a qual acomete cerca de um terço da população mundial. Objetivo: Analisar a frequência da infecção por Toxoplasma gondii em gestantes em Foz do Iguaçu e verificar possíveis fatores de associação a infecção. Método: Foi realizado um estudo transversal retrospectivo (dados de 2017) que avaliou exames sorológicos, pesquisa de anticorpos IgG e IgM para T. gondii durante a gestação e possíveis fatores de associação a infecção, a partir das fichas de pré-natal das gestantes em unidades de saúde, Foz do Iguaçu/PR. O teste do χ2 para tendência foi utilizado para análise dos dados e, o odds ratio (OR) para estimar a chance de associação entre as variáveis. Resultados: Das 1.000 fichas de pré-natal analisadas, 78,1% apresentaram registro de sorologia para T. gondii, das quais, 34,0% eram imunes ao T. gondii, 3,9% apresentaram anticorpos IgG e IgM e 66,0% eram suscetíveis. A maioria das gestantes iniciaram o pré-natal no primeiro trimestre 467 (60,0%). Houve predominância de gestantes com mais de uma gestação 200 (44,0% — p=0,00001), brasileiras 259 (35,1% — p=0,0112), idade >41 anos 7 (63,6%), ensino médio completo 125 (37,8% — p<0,05) e de cor da pele branca 140 (38,5% — p=0,0164). Conclusões: Os fatores associados a frequência da infecção nas gestantes devem ser considerados durante o pré-natal para a prevenção da infecção.