bluuebunny/crossref_metadata_2025 huggingface dataset:
Comparison of effectiveness between two different doses of intravenous dexmedetomidine as adjuvant to subarachnoid block for sub umbilical surgeries
Authors: Sahoo Ayaskant , Seelan Padmalatha , Dasari Gurucharan , Penmatsa Swathi
Published: August 2023

Background. Spinal anesthesia was a commonly used technique in anesthetic practice for lower abdominal and lower limb surgeries. To prolong the duration of bupivacaine spinal anesthesia adjuvants like α2 agonists and opioids have been used intrathecally. Clonidine and dexmedetomidine have also been found to prolong the duration of spinal anesthesia when given intravenous. Dexmedetomidine was more suitable adjuvant to spinal anesthesia compared to clonidine as it has more sedative and analgesic effects due to more selective α2A receptor agonist activity. Dexmedetomidine has been shown to prolong the duration of analgesia of spinal anaesthesia in various studies. Here we compare the two doses of Dexmedetomidine in prolonging the duration of analgesia.
Material and methods. 60 American Society of Anaesthesiologists(ASA) physical status I/II patients scheduled for elective lower abdominal and lower limb surgeries under spinal anesthesia were randomized into two groups of 30 each. Immediately after subarachnoid block with 3.5ml of 0.5% hyperbaric bupivacaine, Group A patients received a loading dose of 0.5µg/kg of dexmedetomidine intravenously in 100ml NS over 10 mins whereas Group B received 1.0µg/kg of dexmedetomidine intravenously in 100ml NS over 10 mins.
Results. Time for rescue analgesic were higher in Group B compared to Group A which was statistically significant but clinically the extra duration was insignificant. Time for two segment regression and duration of motor blockade was significantly prolonged in Group B. Requirement of Mephentermine was comparable in both the groups. There was no excessive sedation in both the groups.
Conclusion. Dexmedetomidine administered as isolated loading dose of 0.5 µg/kg IV immediately after spinal anaesthesia was clinically equi-efficacious in prolonging the duration of analgesia of spinal anaesthesia compared to a larger dose of 1.0 µg/kg. The side effect profile, hemodynamic stability, sedation levels, need for vasopressors and atropine were comparable in both groups.
Pros and cons of continous glucose monitoring
Authors: Ciechański Marcin , Witkowska Edyta , Ostańska Agnieszka , Szafran Adrianna , Wiśniewska Klaudia , Piasek Laura , Godek Grzegorz , Więcław Kacper , Stańko Katarzyna , Terelak Wiktor
Published: August 2023

Introduction: Diabetes mellitus is a metabolic disorder that might result in short and long-term health complications and even death if not properly managed. This disease affected 451 million people in 2017 worldwide and these figures are expected to increase to 693 million by 2045. Currently, there is no cure for diabetes. However, self-management, especially keeping BG in the recommended range, is crucial to the treatment.

 

Aim: The aim of this paper is to offer an overview of current literature regarding CGM technologies. We outline mechanism of action, current use of CGM and discuss pros and cons of using this method in DM management.

 

Materials and methods: A review of the literature available in PubMed and Google Scholar databases was conducted.

 

Results and conclusions: Blood glucose measurement using a glucometer is an invasive method, not very comfortable for the patient, it detects only one temporary blood glucose level. This method does not reflect glucose fluctuations and trends, which makes effective diabetes management difficult. Even supplementing this method with HbA1c measurement does not bring as much relevant information for making therapeutic decision as CGM. The abundance of data provided by CGM and the ability to analyze them in greater detail, provide additional information to help achieve glycemic goals. It is a discreet and minimally invasive method, and the reading of blood glucose values can be easily read from mobile device. Data storage allows the doctor to view the past course of the disease and modify treatment. Manufacturers are constantly improving their devices, eliminating flaws, and the benefits of CGM improve treatment outcomes, which should translate into a reduction in the long-term complications of diabetes. Further research is needed, leading to the development of CGM technology.

 

Key words: Continuous glucose monitoring; Blood glucose monitoring; MARD; Diabetes mellitus; HbA1c
Liquid Water Transport Characteristic and Droplet Dynamics of Proton Exchange Membrane Fuel Cells With 3D Wave Channel
Authors: Zijun Li , Wang Jianguo , Wang Shubo , Li Weiwei , Xie Xiaofeng
Published: August 2023

The two-phase flow of water and reactive gas in the channel of proton exchange membrane fuel cell (PEMFC) plays an important role in high-quality water management. In this study, the removal effect of 3D wave channel and 2D straight channel for liquid water was studied by volume of fluid method. The dynamic behavior of droplet emerge from the gas diffusion layer (GDL) into the channel under the influence of gas flow was investigated. The effects of droplet growth, deformation, detachment, force, pore size on water critical behavior and water content in the channel are discussed. The results show that the 3D wave channel is superior to the removal of liquid water than the 2D straight channel. The increase of velocity is conducive to the discharge liquid water. While infinite increase of velocity will cause more parasitic power loss. The larger pore size of GDL is not advantageous to the performance of PEMFC, but the appropriate increase of pore size is conducive to the discharge of liquid water. The basic knowledge obtained in this study will help to deepen the understanding of droplet dynamics in PEMFC gas channels, and help to optimize the design and working conditions of these channels.
Experiencias educativas inspiradoras El trabajo de las academias en la UACJ
Authors: Cervantes Holguín Evangelina , Pacheco González Sergio , Rodríguez Alonso Jesús Alberto , Solís Rodríguez Fany Thelma , Maldonado Miranda Miguel Ángel , Velasco Rodríguez Gabriela , Nevarez Sanchez Janette Cecilia , Tiscareño Arroyo Ma. Lourdes , Márquez Melchor Yeshica Anneliese , Montiel Contreras Carlos Urani , Guzmán Hernández Ulises Adonay , Domínguez Chavira Claudia Teresa , Sandoval Gutiérrez Fernando , Islas Salinas Patricia
Published: August 2023

En el presente libro se comparten contribuciones presentadas por las academias de la Universidad Autónoma de Ciudad Juárez con el fin de visibilizar y compartir experiencias transferibles, sustentables e innovadoras que por sus atributos estimulen y fortalezcan el trabajo colaborativo al interior de la universidad. Estas prácticas educativas se distinguen por ser innovadoras, porque mejoran una acción a través de soluciones nuevas o creativas; efectivas, en tanto demuestran un impacto positivo y tangible en el contexto de intervención; sostenibles, pues se mantienen en el tiempo y producen efectos duraderos; replicables, porque sirven como modelo para desarrollar iniciativas similares en otros lugares; transversales, al ser resultado del trabajo interdisciplinar; participativas, ya que en su diseño y realización se implica a los integrantes de la academia; y comprometidas con la justicia social, dada su sensibilidad ante la lucha contra la desigualdad. La organización del libro atiende a cinco temáticas. Las tres primeras responden a funciones normativas de las academias: actualización, formación y vinculación. Y se agregó una más: incertidumbre, en correspondencia a la insólita experiencia docente en escenarios de emergencia sanitaria. Tenemos enfrente textos con experiencias diferenciadas que tienen en común el quehacer de las academias en una universidad pública con procesos institucionales específicos y un contexto externo al que buscan responder a través de su trabajo educativo.
METHOD OF DISCRETE SINGULARITIES FOR ACCOUNTING FOR CONVECTION WHEN MODELING DYNAMICS OF INFECTIOUS DISEASE UNDER DIFFUSION PERTURBATIONS AND CONCENTRATED INFLUENCES
Authors: Baranovsky Serhii , Bomba Andrii
Published: August 2023

A wide range of various mathematical models have been developed to predict the dynamics of an infectious disease. As a rule, such models do not take into account spatial effects, which are associated with both the uneven distribution of active factors and their convective transfer by the intercellular fluid. The paper proposes a variant of taking into account convection when modeling the process of an infectious disease under conditions of diffusion perturbations and concentrated influences. Based on the reduction of original singularly perturbed model problem with delay to a sequence of problems without delay, an effective step-by-step procedure for numerically asymptotically approximating the solution as a perturbation of the solution of the corresponding degenerate problems is synthesized. To find the velocity field, it is proposed to model the movement of fluid in the intercellular medium as a potential flow in the source-drain system. It is emphasized that this approach can be used for a wide range of configurations of model areas with sufficient variability of boundary conditions. The results of computer modeling are presented, which illustrate the influence of diffusion scattering and convection on the development of a viral disease under the conditions of injections of immunological drugs. It is shown that as a result of diffusion scattering and convective transfer of viral elements, their concentration in the epicenter of infection decreases over time, which leads to a corresponding decrease in the "severity" of the disease. It is also shown that with an uneven field of movement speed of the intercellular fluid, there will be zones with a less intense influx of both own and donor antibodies. As a result, the amount of antibodies available in these zones may be insufficient to neutralize antigens, which may lead to the emergence of new epicenters of infection here. The importance of taking such effects into account, in particular, when forming effective treatment programs, is indicated.
MATHEMATICAL MODELS, NUMERICAL METHODS AND RESULTS OF STUDY OF TRANSSONIC FLOW AROUND PROFILES OF BLADE SYSTEMS
Authors: Vanin Viktor
Published: August 2023

The aerodynamic characteristics of blade profiles in a transonic flow of an ideal gas are considered, which are obtained on the basis of the numerical solution of the system of gas dynamics equations (laws of conservation) in integral form. The solution is found by stabilizing over time, which avoids complications in the numerical method for a stationary system of variable-type equations with unknown lines of change from elliptic to hyperbolic and vice versa. The peculiarities of the position of the shock wave (jump) depending on the algorithm for calculating the parameter values on the faces of the cells of the difference grid in the finite-volume algorithm are pointed out. The calculation of numerical flows on the faces of the volume is based on the solution of the problem of the decay of an arbitrary discontinuity of parameters on them in a one-dimensional direction along the normal to the face. The choice of the working difference scheme is based on the indicators of accuracy (order of approximation) and complexity (explicit and implicit) of transition to the next time layer. The development of difference schemes of a higher order of approximation allows to obtain more detailed information about gas-dynamic flows on real grids, which was unattainable when using schemes of the first order of accuracy with high scheme (approximation) viscosity and inconsistency of the propagation of disturbances on a heterogeneous background of parameter values (dispersion calculation effects). The results of calculations using S.K. Godunov's scheme of a higher order of approximation, aerodynamic characteristics of the rigid profile and their comparison with experimental data are given. The characteristics of a profile that performs incoherent angular and vertical oscillations according to a given law are studied.
MATHEMATICAL MODELLING OF DYNAMIC PROCESSES IN A LAYERED INCOMPRESSIBLE HALF-SPACE WITH INITIAL STRESSES UNDER THE ACTION OF A MOVING LOAD
Authors: Glukhov Yuriy
Published: August 2023

This work is devoted to the study of the influence of the protective coating, initial stresses, mechanical characteristics of materials, movement parameters of the surface load on the stress-deformed state of the elastic base. The relevance of the research results is related to the possibility of their use in the creation of qualitatively new materials, structures and building structures. Two models of a layered incompressible half-space are considered and compared: 1) an elastic plate on an elastic half-space; 2) the top layer (protective coating) is modelled by concentrated masses. The concentrated force moves along the free surface of the protective layer at a constant speed at a certain angle to the surface of the half-space. The solution of the problem was obtained using the method of integral Fourier transformations. Analytical results are given in a general form for materials with an arbitrary elastic potential, for cases of unequal and equal roots of characteristic equations, for various conditions of combination of elements of a layered medium and for any speed of movement of the load. The material with the Bartenev-Khazanovich potential was considered for numerical analysis. The calculations were carried out within the framework of the theory of finite initial deformations. The impact of the moving load, initial stresses and mechanical parameters of the elements of the layered base on the main characteristics of its stress-strain state was studied.
APPLICATION OF THE METHOD OF DISCRETE SINGULARITIES TO THE CALCULATION OF THE EVOLUTION OF SURFACE GRAVITY WAVES OVER BOTTOM IRREGULARITIES
Authors: Gorban Iryna , Korolova Anna
Published: August 2023

The numerical technique for simulation of viscous non-linear interactions between a solitary wave and a non-regular bottom was developed. It couples the boundary integral method used to determine the free surface deformations and the vortex scheme for integrating the fluid dynamic equations. To verify the model, a series of test calculations was carried out, where the obtained results were compared with our own experimental data and results known from similar studies by other authors. A good coincidence of the free surface elevation, as well as the velocity fields during the passage of a solitary wave over a thin submerged plate, was obtained. Systematic calculations of the interaction of a solitary wave with a submerged step in a wide range of wave amplitudes and step heights were performed. It is shown that when a wave emerges from deep water into the shallows, its evolution is determined by energy losses due to reflection, dispersion effects, and the generation of a vortex field. The dynamics of the wave on the submerged step depends on the coefficient of interaction, which is the ratio of the wave amplitude to the water depth above the step. Four types of wave behavior are possible above the step. Those are the weak interaction, when the wave gently splits into transmitted and reflected solitons; fission with development of two solitons behind the irregularity; fission with the generation of a dispersion chain of waves in the shallow water; and the collapse of a wave. The obtained critical value of the coefficient of interaction, at which the solitary wave is always breaking, is about 0.8, which is in congruence with the experimental data. Studies of patterns of vorticity generated by a solitary wave at the edge of a submerged step revealed two oppositely directed vortices with a horizontal axis, the scale of which is proportional to the water depth in a shallow channel. Their dynamics causes intensive exchange processes between deep water and shallows, as well as water flows from the bottom to the top and water mixing. The obtained data make it possible to predict in advance the development of processes and dangers caused by long nonlinear waves reaching the shelf.
SIMULATION OF FLOW AND HEAT EXCHANGE IN A HEAT ACCUMULATOR TANK
Authors: Demchenko Volodymyr , Baranyuk Oleksandr , Rachinskiy Artur
Published: August 2023

The article deals with the research of thermal energy storage tanks. It is proposed to use a «thermal core» to minimize the effects of thermal stratification and high thermal inertia. The thermal core consists of a binary tube placed along the central axis of the tank, filled with a paraffin mixture with a melting point of 45 to 65oC and a density of 0,880 to 0,915g/cm3 at 15oC. In the study the Fluent software package was used to model the temperature distribution in the tank under free convection conditions, the data was then converted to the Transient Thermal module of the ANSYS software package for further calculations of the unsteady temperature distribution in the thermal core. The study showed that a 1400-liter thermal energy storage device, heated for 1 hour by a heat-transfer fluid at 115oC, cools down to 50oC in 4 hours. The research also revealed the need to improve the tank design based on the analysis of the hydrodynamic structure of the flow in the tank, as evidenced by the trajectory distribution of free convective flows. The authors concluded that the use of a heat core, regardless of the type of paraffin used to form it, helps to reduce temperature stratification by height in the tank and that the type of paraffin used has no significant effect on the overall cooling of the tank. However, using ceresin as a core filler results in a slightly higher average tank temperature. Based on the results of the study, the time of complete cooling of the tank was determined by the non-uniform temperature field of all elements of the tank.
NUMERICAL MODELLING OF ELECTROMAGNETIC WAVE SCATTERING ON GRATINGS WITH ONE-DIMENSIONAL QUASI-FRACTAL PERIOD STRUCTURE
Authors: Dushkin Volodymyr , Zhuchenko Stanislav
Published: August 2023

Numerical modelling of the properties of E-polarised and H-polarised waves scattered on periodic screened quasi-fractal gratings is carried out. The location of the band system at each period is determined by the principle of constructing a generalized symmetric Cantor set at a certain step of the algorithm. A mathematical model of the problems based on systems of boundary singular integral equations of the first kind was used in the study. These systems of equations were obtained using the method of parametric representations of singular and hypersingular integral operators. The systems of singular integral equations were solved numerically using the computational schemes of the method of discrete singularities. The solutions of these equations are used to obtain the main characteristics of the electric and magnetic fields. This experiment proved the possibility of using the MDS computational scheme to analyse systems containing 8 – 16 bands at different distances from each other. Graphs of the dependence of harmonic amplitudes on the wavenumber, point plots of absolute values of all non-zero harmonics at resonant wavenumber values, and maps of electric and magnetic field components in the region above the grating were obtained. It is confirmed that the overall field structure in the case of normal incidence is significantly influenced by all harmonics with absolute numbers from 0 to 50. The harmonics had a large number of resonances that were observed at different values of the wavenumber. This led to a complex structure of the isolines of absolute values of the scattered electric and magnetic field amplitudes in the region above the structure, and a significant difference in amplitude values with small changes in coordinates. In the future, it is planned to carry out computer simulations for imperfectly conducting structures and compare the results with the numerical results for the ideal case considered in this paper. The proposed structure may be of interest for the design of multimode broadband antennas.
A CONSTRUCTIVE INVESTIGATION BY THE METHODS OF TWO-SIDED APPROXIMATIONS OF BOUNDARY PROBLEMS FOR SECOND-ORDER SEMILINEAR ELLIPTIC EQUATIONS
Authors: Lamtyugova Svitlana , Polyakov Andrii , Sidorov Maxim
Published: August 2023

The paper considers the first boundary value problem for a second-order semilinear elliptic equation. Problems of this class often arise in the modeling of processes occurring in chemistry, physics, biology, etc. A special place among the methods of analysis of the problems under consideration is occupied by the so-called constructive research methods, which allow not only to prove the existence of a problem solution, but also offer an algorithm for finding it with a given accuracy. For a constructive study of a nonlinear boundary value problem, it is proposed to use two versions of the method of two-sided approximations. Both methods are based on the transition from a differential problem to an equivalent nonlinear integral equation (using the Green’s function or using the Green-Rvachev’s quasi-function), which is analyzed by methods of the theory of nonlinear operators in semi-ordered Banach spaces. Conclusions about the existence of positive solutions of the constructed integral equations and the two-sided convergence of successive approximations to these solutions are made on the basis of the results of V.I. Opojcev on the solvability of nonlinear equations with a heterotone operator. The practical implementation of the method of two-sided approximations based on the use of the Green's function has certain limitations associated with the need to have an explicit expression for this function, which narrows the range of areas in which the method can actually be applied. The method of two-sided approximations, based on the use of the Green-Rvachev’s quasi-function, which can be constructed using the apparatus of the R-functions theory for regions of sufficiently arbitrary geometry, is free from this shortcoming. The proposed methods are illustrated by computational experiments for elliptic equations with Laplace and Helmholtz operators and heterotone power nonlinearity in a number of two- and three-dimensional domains. The results of both methods of two-sided approximations were compared with each other.
CONTROL OF BUNDLE OF TRAJECTORIES OF A LINEAR DISCRETE SYSTEM WITH FINITE SETS OF INITIAL AND FINAL STATES
Authors: Matvienko Vladimir , Pichkur Volodymyr , Cherniy Dmytro
Published: August 2023

The article proposes an analysis of the problem of control of trajectory bundle of a linear discrete system. The problem of trajectory bundle control arises in applications characterized by the deterministic uncertainty of the initial conditions of the system, control of a group of objects of a similar nature, etc. To such problems belongs, in particular, the control problem for a beam of charged particles. In the statement of the problem studied in the paper, the control function is scalar, the set of initial states and the set of final states contain a finite number of elements. At the same time, the system is completely controlled. The problem is to find a control that transfers the system from a set of initial conditions to a set of final states. The problem is to find a control that transfers the system from a set of initial conditions to a set of final states. In the article, the problem of controlling a bundle of trajectories is reduced to the problem of terminal control of a linear discrete system of higher dimension. At the same time, the resulting system has a block structure. This approach is new. Applying the formula that establishes the dependence between the initial and final states of a discrete system, the problem of terminal control is reduced to the problem of finding a solution to a system of linear algebraic equations. Using the structure of the matrix of the system, as well as the form of the general solution of the system of linear algebraic equations, we obtain a general solution of the terminal control problem. Applying the properties of the pseudoinverse matrix, we prove the theorem on conditions of the solution existence and establish the function, which gives the general solution of the trajectory bundle control problem. This result has an algorithmic orientation.
LOCAL MODEL OF THE THERMOELASTIC STATE OF A POROUS MATERIAL
Authors: Nikolaev Oleksii , Skitska Mariia
Published: August 2023

In the paper, a local stationary model of the thermoelastic state of a porous material is constructed. The model is based on uncoupled boundary value problems for stationary equations of heat conduction and thermoelasticity for a space with two spherical cavities. The temperature field is determined by the constant temperature on the surfaces of the cavities, which are considered free of forces. The problem was solved by the generalized Fourier method (GFM), for which the paper presents its further development for a certain class of thermoelasticity problems. For this purpose, systems of equally directed spherical coordinates were introduced, the origins of which are connected with the centers of the cavities. In the work, a new set of axisymmetric basic solutions of the Lamé equation for a sphere is constructed and addition theorems are proved for it and for solutions of the vector biharmonic equation in the given coordinate systems. The GFM formalism made it possible to reduce the boundary value problems to algebraic solvable systems with Fredholm operators in the space l2 under the condition that the spherical surfaces do not intersect. The reduction method was used for the numerical solution of the systems. Graphs of stresses  on the surface of one of the cavities and stresses  on the axis of symmetry of the problem between the cavities at different relative sizes of the cavities and at different temperatures of their heating were obtained. The obtained results agree with those known for one cavity. The convergence of the reduction method is verified numerically.
NUMERICAL METHOD FOR ASSESSING EFFICIENCY OF WAVE ENERGY CONVERTOR INTEGRATED INTO COASTAL PROTECTION STRUCTURES
Authors: Ostroverkh Borys , Potapenko Lyudmila
Published: August 2023

The use of wave energy by converting it into electricity depends on the efficiency of wave energy converters, which are negatively affected by marine factors. Many design flaws can be eliminated at the stage of design and testing of devices by using its numerical models based on the application of the hydrodynamic theory of propagation and interaction of waves with marine structures. The use of the modern computational methods of hydrodynamics to determine the influence of some design factors of wave energy converters incorporated into a submerged breakwater is considered in the paper. The results of numerical studies showed that if a submerged breakwater is located in the wave stream and with a transducer installed on its crest, there is a change in flow velocities and pressure in the transducer chamber, which affects the efficiency of energy extraction. Additional advantages arise as a result of the introduction of a complex structure with coastal protection and power supply functions. The obtained calculation results visualize the qualitative indicator of the influence of the design factors of the converter. Additional conclusions can be obtained by processing the numerical results. As a result of numerical experiments conducted with using REEF3D CFD computer system, the measures for selecting the parameters of the converters were proposed based on mathematical modeling of specific structures. The research related to the determination of the mechanisms of wave energy transformation when interacting with coastal protection elements focused on increasing the efficiency of the convertor by locating in deeper water, which includes detailed testing, investigations and improvement of various types of constructions, is carried out on the computing and laboratory base of Institute of Hydromechanics.
Распространение вариантов вируса SARS-COV-2, вызывающих интерес (VOI) и субвариантов Omicron, находящихся под наблюдением (VUM), на основе количества их геномов, депонированных в базу данных GISAID за неделю с 29.07.2023 г. по 04.08.2023 г.
Authors: Чумачкова Елена , Краснов Ярослав , Дмитриева Людмила , Осина Наталия , Зимирова Анастасия , Иванова Александра , Карнаухов Игорь , Караваева Татьяна , Щербакова Светлана , Кутырев Владимир
Published: August 2023

В обзоре представлена информация по циркулирующим в настоящее время вариантам вируса SARS-COV-2 вызывающих интерес (VOI) и субвариантов Omicron, находящихся под наблюдением (VUM), геномные последовательности которые размещены в международной базе данных GISAID за неделю с 29.07.2023 г. по 04.08.2023 г.
Shifted Chebyshev spectral method for the approximate solution of multi-term fractional differential equation
Authors: Zedan Hassan , Alharbi Weam , Okasha Nada A.
Published: August 2023

In this paper, we state and prove a new formula expressing explicitly the derivatives of shifted Chebyshev polynomials of any degree and for any fractional-order in terms of shifted Chebyshev polynomials themselves. We give a comparison of the efficiency of formula and the techniques for the approximate solution of multi-term fractional di¤erential equations .
Ionic liquid interactions with cellulose and the effect of water
Authors: T. Rodrigo Kraemer , Reyes Guillermo , Cartes Marcela , Mejía Andrés , Rojas Orlando J.
Published: August 2023

Ionic Liquids (ILs) have been used to address issues such as recyclability, cost-effectiveness and tailored thermophysical properties. This is most relevant to recent efforts directed to dissolve cellulose for filament spinning and bioproduct development. Herein, we introduce a simple method to experimentally measure the interactions of cellulose films (roughness, Rh = 37 nm) with ILs using a homologous series relevant to biomass fractionation, namely, 1-butyl-3-methylimidazolium acetate ([bmim][OAc]), 1-butyl-3-methylimidazolium chloride ([bmim][Cl]), 1-ethyl-3-methylimidazolium acetate ([emim][OAc]), and 1-ethyl-3-methylimidazolium chloride ([emim][Cl]) and their mixtures with water (0 to 10 wt%). Thermophysical properties relevant to cellulose dissolution were measured at 363.15 K and 0.1 MPa under argon (surface tension, γ, contact angle, θ), and air (diffusivities, D and bulk density, ρ) atmospheres to reveal the effect of the IL counter ions on the involved interactions with water. In general, water increased γ, θ, but reduce D, which supports experimental observations indicating the detrimental effect of water on IL-cellulose interactions. The [emim]+ cation (in [emim][OAc] and [emim][Cl]), produced a lower contact angle with cellulose while the interfacial properties (γ, θ, D) for ILs with the [OAc]- anion were marginally affected by water. By contrast, ILs carrying [Cl]- anions exhibited a significant reduction in D (from 11.7⋅10−13 to 2.9⋅10−13 𝑚2𝑠−1). Overall, we present a systematic approach rooted in experimental and theoretical approaches to facilitate the design of green routes for cellulose dissolution and processing by using ILs.
Impossible Differential Cryptanalysis of Lightweight Block Cipher WARP
Authors: Xu Hong , Hao Chunyu , Cui Yaxin , Qi Wenfeng
Published: August 2023

WARP is a lightweight block cipher with 128-bit key size and block size, which can be used as a lightweight replacement of AES-128 without changing the mode of operation. In this paper, we proposed an automatic search algorithm for impossible differentials of WARP with SAT method and searched for impossible differentials of WARP up to 21 rounds. Using one impossible differential of 21-round WARP, we present an impossible differential cryptanalysis of 33-round WARP by appending six rounds before and after the distinguisher, which covers the same round as the best zero-correlation linear attack on WARP in the single-key setting.
A bioética principialista na formação de profissionais psicólogos
Authors: Bromochenkel Cattiúscia Batista , Silva Italo Emmanoel Silva e , Anjos Neta Maria Madalena Souza dos , Yarid Sérgio Donha
Published: August 2023

Introdução: A bioética é o estudo sistemático da conduta humana em trabalhos/ pesquisas que envolvem seres humanos, sendo necessária na formação do psicólogo para reflexão ética em dilemas que possam surgir na prática. Desta forma, traçou-se como objetivo: analisar a percepção dos profissionais psicólogos sobre a abordagem de conteúdos da bioética principialista na formação acadêmica. Materiais e Métodos: Trata-se de um estudo de natureza descritiva, exploratória, transversal, de abordagem quantitativa. Teve como campo do estudo o município de Jequié no estado da Bahia, e sua população foram Psicólogos registrados no Conselho Regional de Psicologia Bahia-Sergipe (CRP-03), para coleta de dados utilizou-se questionário estruturado construído através da plataforma Google-forms. Utilizou-se análise descritiva e as variáveis categóricas foram descritas por meio de frequências absolutas e relativas e a análise inferencial foi realizada pelo teste de qui-quadrado. Resultados e Discussão: 76,30% dos psicólogos afirmaram já ter tido contato com a bioética, sendo que 59,20% o tiveram durante a graduação. 13,50% afirmaram não ter havido nenhum contato. Quanto a metodologia de ensino utilizada, 40,80% informaram aula teórica e 39,50% discussão de dilemas bioéticos. Relacionado a bioética principialista, 77,60% não a conhecem. 97,40% consideraram a Bioética como conteúdo importante para a formação do psicólogo. Considerações finais: O estudo demonstrou que os psicólogos formados a menos de 5 anos indicaram maior contato com o tema, porém sem a especificidade da bioética principialista. Referiram como principais meios de contato com o tema as aulas e eventos específicos na área e como metodologia de ensino, referiram discussão de dilemas e aulas expositivas.
Palavras-Chave: Bioética; Psicólogo; Principialismo.
A bioética principialista na formação de psicólogos e aplicabilidade na atuação profissional
Authors: Bromochenkel Cattiúscia Batista , Anjos Neta Maria Madalena Souza dos , Yarid Sérgio Donha
Published: August 2023

Introdução: A bioética é a área da ciência que busca compreender e embasar profissionais que atuam com seres humanos e saúde no sentido de garantir que seus direitos sejam preservados e respeitados, visando a equidade, integralidade e o bem-estar. A Psicologia necessita fundamentar seus conhecimentos e aplicá-los de forma ética, responsável, criando condições para contribuir com o bem-estar dos indivíduos e comunidades, pautando-se na bioética. Objetivo: compreender a influência dos conteúdos da bioética principialista na prática profissional dos psicólogos. Método: Trata-se de uma pesquisa com abordagem qualitativa apresentando delineamento exploratório com 76 Psicólogos do interior da Bahia. A coleta de dados foi através de questionário enviado através da plataforma Google-forms. Utilizou-se o software IRAMUTEQ para análise dos dados. Resultados e Discussão: Ao abordar as expressões mais significativas em relação a formação do Psicólogo e bioética apresentou ocorrência dos termos “humano” “Psicólogo”, “ético”; “princípio”; “contribuir” e “prático” relacionados a ideia de que o cuidado com as pessoas envolve processos éticos e contribuem para a prática do profissional, levando a relevância da aplicabilidade da Bioética. Ao serem evocados princípios da bioética, os referidos foram referentes ao principialismo, que não se encontram explícitos nos documentos normativos da profissão. Conclusão: A evocação de palavras relacionada a Bioética traz a representação da bioética principialista através da evocação dos termos: autonomia, beneficência, não-maleficência e justiça. Os profissionais percebem relevância da temática na sua atuação sendo importante na tomada de decisão, nos dilemas e na aplicabilidade prática nos serviços onde atuam.
Palavras-Chave: Bioética, Psicologia, Formação.
A inserção das Práticas Integrativas e Complementares no Brasil e apoio da gestão no âmbito da Atenção Básica
Authors: Santos Mona Freitas , Martins Filho Ismar Eduardo
Published: August 2023

Introdução: esta pesquisa examina e discute a oferta das Práticas Integrativas e Complementares em Saúde (PICS) no Brasil no cenário da Atenção Básica (AB), assim como, aborda o apoio da gestão. Materiais e métodos: estudo descritivo quantitativo, no qual utilizaram-se os dados do terceiro ciclo do Programa Nacional de Melhoria do Acesso e da Qualidade da Atenção Básica (PMAQ) do ano de 2017. Resultados: conforme consta no inquérito do PMAQ, foram entrevistadas 38.865 Unidade Básica de Saúde (UBS) e 4.110 Núcleo de Apoio à Saúde da Família (NASF). Essas 11.758 (30,25%) das UBS e 2.510 (61,07%) dos NASF oferecem pelo menos uma PIC. A Medicina Tradicional Chinesa (MTC) é ofertada por 51.44% das UBS e por 44.46% dos NASF; sementes e cristais para auriculoterapia são os insumos para PICS mais disponível nas UBS (62,78%). Discussão: as práticas integrativas devem ser efetivamente instituídas na atenção básica, pois é uma abordagem necessária e promissora para o fortalecimento do Sistema Único de Saúde. Considerações finais: que a oferta e o apoio da gestão são insuficientes para implementar as PICS na AB.
Palavras-chave: Gestão em Saúde; Terapias Complementares; Medicina Integrativa; Atenção Primária à Saúde; Qualidade; Acesso; Avaliação da Assistência à Saúde.
Explorando os véus da consciência: uma reflexão sobre Drogas Psicoativas e a busca Espiritual
Authors: Barbosa Diogo Jacintho , Pereira Gomes Marcia , Gomes Antonio Marcos Tosoli , Souza Karen Paula Damasceno dos Santos
Published: August 2023

Objetivo: refletir e aprofundar a compreensão das diferentes perspectivas sobre drogas psicoativas e a busca espiritual, destacando os efeitos, as implicações e os desafios éticos e morais envolvidos. Metodologia: Este trabalho constitui um estudo reflexivo visando à consecução da síntese de diversos estudos previamente publicados e à formulação de inferências de caráter geral acerca da temática em questão. Resultados: Desta forma, foram selecionados para leitura na íntegra 20 artigos. A partir da leitura destes, foi possível fazer uma reflexão sobre o uso de drogas psicoativas e a experiência espiritual. Refletindo como algumas substâncias psicoativas têm sido utilizadas em rituais religiosos, cerimônias xamânicas, do Santo Daime e em algumas religiões afro-brasileiras para expandir a consciência e promover experiências transcendentes. Conclusões: a busca espiritual é um caminho individual e subjetivo, e cada pessoa encontrará sua própria maneira de explorar os véus da consciência. Ao refletir sobre o uso de drogas psicoativas no contexto religioso, somos convidados a ampliar nossos horizontes e considerar as múltiplas formas de busca espiritual, respeitando as diversas tradições e perspectivas que enriquecem nossa compreensão da existência humana e do divino.
Palavras-Chave: Drogas Psicoativas; Experiência Espiritual; Religião and Espiritualidade; Jornada Espiritual; Transcendência.
A Religiosidade/Espiritualidade nos cursos de graduação em enfermagem das Universidades Públicas Estaduais da Bahia
Authors: Santos Maria da Conceição Quirino dos , Tavares Marilei de Melo , Yarid Sérgio Donha
Published: August 2023

Objetivo: Verificar em que período/ano a disciplina ou temática da religiosidade/ espiritualidade é abordada nos Cursos de Graduação em Enfermagem. Metodologia: Trata-se de um estudo descritivo, de natureza quantitativa, realizado com os alunos de graduação em enfermagem das universidades públicas estaduais da Bahia. Resultados: Foram avaliados 127 participantes com média de idade de 29 anos, entre os quais prevalecera o sexo feminino (n=92, 72,4%), de cor autorreferida branca (n=65, 51,2%) seguidos de pardos (n=41, 32,3%) e com renda de entre um e três salários mínimos (n=38, 37,8%). Ao serem questionados acerca do momento de abordagem da temática religiosidade/espiritualidade no curso, na figura 1 a seguir, nota-se que segundo 40,2% (n = 55) o assunto foi abordado em mais de um semestre. Conclusão: De acordo as pesquisas, a temática da espiritualidade/religiosidade vêm sendo administradas em semestres aleatórios, em vários semestres durante o curso de graduação em enfermagem. Com isso, se observa que devido à ausência da disciplina específica no campo da espiritualidade e saúde, os docentes acabam abordando em qualquer período durante o decorrer do curso, levando em consideração a necessidade do aluno em ampliar seus conhecimentos no campo da espiritualidade/religiosidade, no cuidado holístico, e na forma de abordagem sobre o assunto com os pacientes.

Palavras-Chave: Espiritualidade; Religião e Ciência; Enfermagem holística; Pesquisa em Enfermagem; Instituto Nacional de Pesquisa em Enfermagem (EUA).
Desafios da formação de enfermeiros em cuidados paliativos na modalidade de residência: revisão de escopo
Authors: Silva Rithiely Rosa Feital da , Pereira Eliane Ramos , Silva Rose Mary Costa Rosa Andrade , Rocha Renata Carla Nencetti Pereira , Araújo Janillê Luciana de , Martins Pamela Gonçalves
Published: August 2023

Este estudo tem por objetivo mapear fatores que influenciam na formação de residentes de enfermagem em cuidados paliativos oncológico. Trata-se de uma revisão de escopo, guiada pelas recomendações da Joanna Briggs Institute, realizada em sete bases de dados eletrônicas. Para captura da literatura cinzenta foram utilizados o Google Acadêmico e as listas de referencias dos artigos selecionados. O protocolo desta revisão foi registrado na plataforma Open Science Framework. Foram identificadas 482 publicações e selecionadas nove. Destacaram-se fatores positivos, negativos e possíveis estratégias que podem favorecer o aperfeiçoamento do ensino na residência em cuidados paliativos. Em conclusão às evidências, torna-se clara a necessidade de atentar-se, não somente para os fatores potencializadores, mas também para as barreiras no processo formativo, utilizando-as como alicerces para reestruturar e adequar a didática na residência em enfermagem paliativa.
Palavras-Chave: Enfermagem; Cuidados Paliativos; Internato e Residência.
A importância da Educação Popular em Saúde no fortalecimento das Práticas Integrativas e Complementares em Saúde
Authors: Viana Ingrid Soares , Lima Monnyck Freire Santos , Souza Gisele Leles , Yarid Sérgio Donha , Anjos Maria Madalena Souza dos , Vilela Alba Benemérita Alves
Published: August 2023

A educação popular em saúde destaca-se com um importante componente social ao considerar o conhecimento popular na elaboração das práticas integrativas e complementares em saúde. Neste sentido, este estudo objetiva compreender a influência da Educação Popular no fortalecimento das Práticas Integrativas e Complementares em Saúde. Para isso, foi realizada uma revisão integrativa da literatura, com busca nas principais bases de dados, utilizando estratégia População/Paciente Problema, Interesse e Contexto (PICo). A partir da busca inicial nas bases de dados, foram encontrados 50 artigos, e após leitura e adequação aos critérios de inclusão, 10 artigos constituíram a amostra final do estudo. O saber biomédico e a medicalização dos sintomas ainda são considerados a principal fonte de cuidado ofertado pelas equipes em saúde, contraditoriamente, estes profissionais referem fazer uso dos saberes populares em sua rotina, mas não se sentem confortáveis para promovê-los profissionalmente por ser uma temática não vivenciada no contexto atual dos cursos de saúde no ensino superior brasileiro. Dessa forma, o estudo reforça a necessidade de implementar as Práticas Integrativas e Complementares nas matrizes curriculares dos cursos em saúde, onde haverá oportunidades de discutir a relevância da educação popular na atuação do profissional de saúde.
Palavras-Chave: Educação em Saúde; Práticas de Saúde Complementares e Integrativas; Educação Popular; Cuidado em Saúde.
Internações por hipertensão primária no estado do Rio de Janeiro: uma análise da atenção primária
Authors: Gama João Vitor Ponciano , Siqueira Emílio Conceição de
Published: August 2023

As internações por condições sensíveis à atenção primária (ICSAP) constituem um indicador da atenção primária à saúde (APS) e da atividade hospitalar. Quando alcança êxito na prevenção, diagnóstico e manejo de condições de saúde, bem como resolutividade e abrangência, a APS pode reduzir essas hospitalizações. A hipertensão primária é uma das ICSAP, cuja carga de morbimortalidade aumenta com o envelhecimento populacional e a transição epidemiológica. Assim, o objetivo do estudo é analisar as internações por hipertensão primária, no contexto das ICSAP, no estado do Rio de Janeiro, entre 2010 e 2019, de forma a avaliar a atuação da APS. Trata-se de um estudo observacional com dados da plataforma e-Gestor Atenção Básica e do Sistema de Informações Hospitalares, sobre a cobertura da Atenção Básica (AB) no estado do Rio de Janeiro, de 2010 a 2019, e as internações por hipertensão essencial (primária), por pacientes residentes no estado. Houve aumento na cobertura da AB e queda nos números de internações. A maioria dos internados eram do sexo feminino, adultos e idosos. Houve também um decréscimo no número de óbitos. Os resultados reforçam a relação existente a APS e as ICSAP. O padrão de acometimento dos pacientes, também observado em outros estudos, reforça as características da hipertensão primária. Os achados apontam que houve melhorias na APS e na atividade hospitalar ao longo do período estudado, que reduziram os números de internações e óbitos. O acometimento de pacientes mais velhos reforça os aspectos da doença e da transição epidemiológica.
Diagnóstico do transtorno depressivo na adolescência: uma revisão sistemática
Authors: Bernardino Sampaio Maria Eduarda , Mendonça Marcos Antônio
Published: August 2023

O transtorno depressivo na adolescência é uma patologia prevalente e de grande morbidade, entretanto não há um consenso sobre quais os melhores instrumentos diagnósticos para essa população. Diante disso, esse estudo teve como objetivo analisar escalas psicométricas usadas nessa população e identificar os fatores de risco para o desenvolvimento de TDM. Para isso, realizou-se uma revisão integrativa na literatura, feita a busca pelos descritores “Depressive Disorder, Major”; “Comprehensive Health Care”; “Diagnosis”; “Adolescent” em três plataformas de dados: Google Scholar, biblioteca nacional em saúde e National Library of Medicine, incluiu-se trabalhos publicados entre 2016 e 2021, dos tipos coorte, meta-análise, ensaio clínico randomizado e ensaio clínico, com população brasileira e idade entre 11 e 18 anos e excluiu-se artigos sobre tratamento e populações não brasileira, o que resultou em 10 artigos. As escalas psicométricas validadas nessa população foram: questionário de humor e sentimentos, inventário de depressão de Beck, inventário de depressão infantil e questionário de saúde geral de Goldberg. Os fatores de risco melhor elucidados pela literatura foram ser do sexo feminino, a dissolução do núcleo familiar, história familiar de TDM, exposição a estressores psicológicos e/ou bullying e o baixo rendimento escolar. Conclui-se que o uso de escalas psicométricas como instrumento diagnóstico é recomendado, sendo o questionário de humor e sentimentos a escala de escolha na abordagem inicial, não sendo apenas a aplicação do questionário suficiente para o diagnóstico. Além disso, adolescentes com fatores de risco para o desenvolvimento de TDM, devem ser alvo de maior atenção na assistência possibilitando o diagnóstico precoce. 

Palavras-Chave: Diagnóstico Clínico; Transtorno Depressivo; Adolescente