bluuebunny/crossref_metadata_2025 huggingface dataset:
Design, performance and wake characterization of a scaled wind turbine with closed-loop controls
Authors: Nanos Emmanouil M. , Bottasso Carlo L. , Campagnolo Filippo , Letizia Stefano , Iungo G. Valerio , Rotea Mario A.
Published: July 2021

Abstract. This paper describes the design and characterization of a scaled wind turbine model, conceived to support wake and wind farm control experiments in a boundary layer wind tunnel. The turbine has a rotor diameter of 0.6~meters, and was designed to match the circulation distribution of a target conceptual full-scale turbine at its design tip speed ratio. In order to enable the testing of plant-level control strategies, the model is equipped with closed-loop pitch, torque and yaw control, and is sensorized with integrated load cells, as well as with rotor azimuth and blade pitch encoders. After describing the design of the turbine, its performance and wake characteristics are assessed by conducting experiments in two different wind tunnels, in laminar and turbulent conditions, collecting wake data with different measurement techniques. A large-eddy simulator coupled to an actuator-line model is used to develop a digital replica of the turbine and of the wind tunnel. For increased accuracy, the polars of the low-Reynolds airfoil used in the numerical model are tuned directly from measurements obtained from the rotor in operation in the wind tunnel. Results indicate that the scaled turbine performs as expected, measurements are repeatable and consistent, and the wake appears to have a realistic behavior in line with expectations and with a similar slightly larger scaled model turbine. Furthermore, the predictions of the numerical model are well in line with experimental observations.
Looking for excellence: A comparative review of the splintering of the Arts and the Sciences
Authors: Hecq Dominique , Hill Christine , Theiler Stephen
Published: July 2021

This is a story that brings together excellence, research, poets, and scientists to explore their relationships and possible meanings. We examine the requirement for ‘excellence in research’ in an attempt to understand how this is defined, measured and justified, and we wonder if it is possible, meaningful, or even desirable in its current form. We ask if excellence in the Arts and the Sciences is a product or a process, or both. A snapshot of the historical development of the art/science divide leads us to challenge the usefulness of this dichotomy and to conclude that research excellence is poorly served by existing measures. The story unfolds like a Deleuzean map where art and science have the potential to trace each other in a process that creatively evaluates and modifies that thing we call knowledge.
‘Darling Adopted Daughter’: A practice-led exploration of adoption wounds through the writing of a memoir
Authors: Sparrow Jo-Ann
Published: July 2021

This paper discusses my quest for a narrative means to give voice to the story of my adoption. Using practice-led research to explore my adoption experience, I wrote a memoir entitled ‘Darling Adopted Daughter’ for the degree of Doctor of Creative Arts at the University of the Sunshine Coast (USC). The memoir investigates the adoption wounds I sustained when separated at birth from my biological mother and was adopted three weeks later into a family with three existing biological children.
Google Patents versus Lens: citaciones de literatura científica en patentes
Authors: Velayos Ortega Gema , López Carreño Rosana
Published: July 2021

Se realiza una comparativa de buscadores de patentes en abierto (Google Patents y Lens) para analizar la visibilidad y tratamiento de las citaciones de literatura científica de las patentes (LNP). Entre los resultados destacan la vinculación de estas citas con otras fuentes de información científico-académica, la falta de normalización de los registros bibliográficos y la incorporación de herramientas de análisis de datos como redes de citas o mapas de influencia. Se determina que el tratamiento de estas referencias es cada vez más relevante en este tipo de buscadores, aportando soluciones novedosas al tratamiento de la LNP y favoreciendo las vinculaciones entre las citas de publicaciones científicas en las patentes. La valoración del impacto tecnológico de estas citaciones, en línea con el impacto científico tradicional, requerirá el establecimiento de nuevos indicadores cienciométricos que permitan evaluar la literatura científica desde las patentes.
Las bibliotecas públicas y la integración de las tecnologías en la tercera edad
Authors: Faba-Pérez Cristina , Prieto Inmaculada Calero
Published: July 2021

La tercera edad es fundamental en la sociedad actual, el número de personas mayores crece y su longevidad se hace cada día más patente. La biblioteca pública, como centro social y cultural, debe ser un instrumento que contribuya a mejorar la calidad de vida de este colectivo, favoreciendo su acceso a las tecnologías de la información y la comunicación y disminuyendo así la brecha digital que aún existe en este sector de la sociedad. Por ello, el objetivo de este trabajo es comprobar la situación de las bibliotecas públicas de la provincia de Badajoz (Extremadura) en relación con las tecnologías que ofrecen al sector de la tercera edad. La metodología empleada comienza con el diseño de un cuestionario dividido en 6 categorías específicas sobre tecnología y un total de 40 preguntas y su posterior envío a 64 bibliotecas públicas pacenses, partícipes en un estudio previo, con un porcentaje de respuesta del 50% (32 bibliotecas). Mediante el uso de la estadística descriptiva, los principales resultados muestran que, aunque las personas de la tercera edad que acuden a la biblioteca usan internet y redes sociales en una proporción inferior al 47%, sin embargo, el 87,5% de los encuestados consideran que el uso de la tecnología en la biblioteca por parte de este sector ha aumentado considerablemente en los últimos años favoreciendo su integración en la sociedad. Pese a ello, se concluye que la falta de bibliotecarios especializados, la necesidad de formación continua en tecnologías y la escasa financiación, no favorece que las bibliotecas públicas pacenses se adapten plenamente al cambio tecnológico.
The Georeferencing of Old Cartography in Geographic Information Systems (GIS): Review, Analysis and Comparative Study of Georeferencing Software
Authors: Cascón-Katchadourian Jesús , Alberich-Pascual Jordi
Published: July 2021

Contemporary organizations have faced the growing management of cartographic documentation, some of them of heritage interest. There are numerous institutions that are digitizing, georeferencing and publishing their historical cartography. The motivation of this research is to facilitate the choice of the most appropriate software to perform these tasks. This article carries out the critical review and analysis of four Geographic Information Systems (GIS) of full significance today. After systematizing the general characteristics and modules that must satisfy this type of application, we proceed to the detailed evaluation of the selected Geographic Information Systems, reaching as a result the discussion of the advantages that each one of them provides, of their distinctive characteristics, as well as their professional adequacy.
La producción científica de turismo basado en la naturaleza: análisis bibliométrico de las bases de datos de Clarivate Analytics
Authors: Rivero Guerra Aixa O.
Published: July 2021

Se analiza la cobertura y los principales indicadores bibliométricos de las investigaciones en turismo basado en la naturaleza en las bases de datos de Clarivate Analytics (1900-2020). La mayor producción científica se observa entre 2010 y 2020 en revistas indexadas en la colección principal de Web of Science, las otras bases de datos contribuyen de forma limitada a las publicaciones que se indexan en esta plataforma. Las investigaciones se centran en ecoturismo y turismo rural, publicadas en diversas lenguas; mientras que el conocimiento científico en turismo de aventura, indígena, de vida silvestre, y responsable está en fase inicial de crecimiento y profundización. Las investigaciones en Economía y Empresa, Ecología y Medio Ambiente, Geografía, y Biodiversidad y Conservación son preferentes para los investigadores. La comunidad científica muestra un marcado interés por las revistas indexadas, que acumulan mayor número de citas que los libros y las comunicaciones en congresos. La mayoría de las revistas de acceso abierto están en fase de consolidación y de ganar popularidad en el campo científico, entre el 55,23% (SJR) y el 77,32% (JCR) no consta aún de índice de impacto. Europa lidera este sector, mientras que América Latina y África muestran un desarrollo científico incipiente a excepción de Brasil, México y Sudáfrica. Las revistas de acceso restringido, principalmente las indexadas en el Q1, son las más productivas, constan con mayor número de autores contribuyentes, presentan un balance más elevado de citas acumuladas, un promedio más alto de citas por año y un índice h superior en comparación con las revistas con acceso abierto.
Estudio métrico de la temática agraria en el periódico cubano Granma en el año 2019
Authors: Peña-Borrego Maida Daylin , González-Guitián María Virginia , Rodríguez-Fernández Rosa Margarita , De Zayas-Pérez María Rosa
Published: July 2021

Se analiza el comportamiento de la temática agraria publicada en el periódico Granma, en su edición diaria impresa durante el año 2019, para develar la realidad cubana proyectada en este medio de divulgación nacional del Partido Comunista de Cuba (PCC). Se aplican indicadores bibliométricos, como: productividad mensual, productividad de temáticas por secciones, productividad por provincia, entidades empresariales y cooperativas agrarias más representativas; así como, las principales actividades de investigación y de innovación tecnológica agraria para el sector cooperativo. Para el análisis de los datos, se utilizaron los softwares Excel y ToolInf. Se obtuvo un comportamiento estable en el abordaje del tema en el 60 % de los ejemplares anuales, mientras que el segundo semestre resultó el de mayor número de publicaciones en la sección Cuba, la portada del diario y en Cartas a la dirección. Se dio amplia cobertura a los temas relacionados con el seguimiento y control al sector agrario, problemas agrarios, resultados agroproductivos, eventos, así como inversiones e infraestructuras. El mayor número de información pertenece a las provincias Pinar del Río, Cienfuegos y Granma; donde las principales producciones agrarias que se refieren son maíz, tabaco, arroz y frijol, y en menor medida el resto de las producciones resultantes de las actividades ganaderas, forestales, pesqueras y acuícolas. Las entidades empresariales más representativas resultaron la Empresa Agroindustrial Ceballos y Tabacuba, cuya finalidad principal es la exportación de sus producciones. Se divulga la actividad científico-tecnológica dirigida al sector cooperativo, la cual deberá buscar mayor vinculación y valorización d prácticas tradicionales
An Interactive Dialogue Management System for Spoken Language
Authors:   Master in Information system, Shaqra University, Saudi Arabia, Alqahtani Manal
Published: July 2021

The spoken dialogue system is one of the most important human-machine communication ways. Human-machine communication can be described as an interaction between the user and the computer. This field is full of research points, so it is considered a good attractive environment for many researchers. The spoken dialogue system is of great importance in the process of communicating commercial applications, and facilitating the connecting process between the human and machine which may take different faces. The main objective of this research will be building an interactive dialogue management system for spoken dialogue system in an ideal way, By answering the following main question: How can we build an interactive dialogue management system for spoken dialogue system in an ideal way has the ability to accomplish the Naturalness, Usability, Mixed initiative, Co-operativity, Robustness, and Exploration. This research will be a mixed-method research and will adopt a descriptive survey design in collecting information by Survey questionnaires, Interviews to a sample of the target population, and while secondary data will be found from books, journals, and The Internet. The most important conclusion of the research is the spoken dialogue system is to be less complexity and use uncertainty model; this way must be acceptable by the user and the system itself.
MAGNETOHYDRODYNAMIC HEAT AND MASS TRANSFER FLOW WITH INDUCED MAGNETIC FIELD AND VISCOUS DISSIPATIVE EFFECTS
Authors: AHMED S. , BATIN A.
Published: July 2021

An approximate solution to the problem of steady free convective MHD flow of an incompressible viscous electrically-conducting fluid over an infinite vertical isothermal porous plate with mass convection is presented here. A uniform magnetic field is assumed to be applied transversely to the direction of the flow, taking into account the induced magnetic field with viscous and magnetic dissipations of energy. The dimensionless governing equations are solved by using the series solution method. The induced magnetic field, current density, temperature gradient and flow velocity are studied for magnetohydrodynamic body force, magnetic Prandtl number, Schmidt number and Eckert number. It is observed that the induced magnetic field is found to increase with a rise in magnetic Prandtl number. Current density is strongly reduced with increasing magnetic Prandtl number, but enhanced with Schmidt number. The acquired knowledge in our study can be used by designers to control MHD flow as suitable for a certain applications such as laminar magneto-aerodynamics, and MHD propulsion thermo-fluid dynamics.
EFFECTS OF MESH RESOLUTION ON THE SIMULATION OF SEVERE THUNDERSTORM: THE NEED OF PARALLEL COMPUTING AND DISTRIBUTED TECHNIQUES
Authors: AGUIRRE C. A. , PAZ R. R. , BRIZUELA A. B.
Published: July 2021

In the design of civil structures, it is necessary to consider the effect of the dynamic loads caused by changes in meteorological conditions such as wind speeds or ice deposits. In Argentina, the Standard of the Argentine Electrotechnical Association (AEA, 2006) is used to calculate structures of electrical transmission networks. This Standard specifies the value that must be assigned to the load by effect of the wind. This value is obtained from the meteorological records measured at conventional meteorological stations such as those of the National Meteorological Service. Nevertheless, to fit this parameter, it is also necessary to carry out local studies with updated information, considering the roughness and, in certain cases, the relief of the ground. Computational mechanics addresses this problem and is currently being used to estimate the values of maximum winds by simulations of severe meteorological events. However, it is also necessary to evaluate the results of this tool to know its accuracy in relation to the parameters of the numerical model. This work shows the use of the Large-eddy Simulation considering two options in the choice of element size used for a geographical grid domain in the thunderstorm occurred in Aranguren, Argentina, in 1998. In the first option, a processor is used to compute this event through a 406-meter grid-spacing in horizontal direction and in the second option a four-processor parallel method is used to obtain a more refined 200meter grid-spacing. The last option allows simulating severe events such as down-burst or vortex occurrence with more details.
APPROACH TO A RELIABLE SOLUTION STRATEGY FOR PERFORMING PHASE EQUILIBRIUM CALCULATIONS USING MINLP OPTIMIZATION
Authors: JEREZ I. J. , MUÑOZ F. , GOMEZ J. M.
Published: July 2021

The objective of this contribution is to propose a reliable strategy to solver the problem of phase equilibrium calculations for non-ideal systems, using the Gibbs free energy minimization. This type of problem, using the Gibbs free energy minimization, is usually formulated as a Mixed Integer NonLinear Programming (MINLP) Optimization. This optimization problem allows the compositions to be associated with continuous variables, and the presence of phases in the equilibrium to be associated with the integer variables. The solution strategy proposes a bi-level approach. The first level combines a stochastic (Simulated Annealing – SA) and a local deterministic algorithm (Sequential Quadratic Programming – SQP), and solves a Non Linear Programming Problem (NLP). The continuous variables are considered at this level. The second level considers the integer variables. The advantage of this bilevel strategy lies in its easy implementation and in its proven efficiency to locate global optima with acceptable computational load. This article includes the study of the Water-Ethanol-Cyclohexane and Water-Ethanol-Glycerin systems. A comparative analysis was conducted using experimental data reported in published works and theoretical calculations by means of the Gamma-Phi classic method.
EFFECT OF THE IBUPROFEN SOLUBILITY IN ACETONE AND DICHLOROMETHANE ON THE DRUG RELEASE PROFILES FROM PLGA MICROSPHERES
Authors: ARAGÓN D. M. , ROSAS J. E. , MARTÍNEZ F.
Published: July 2021

Acetone and dichloromethane were used as organic solvent to prepare ibuprofen-loaded PLGA microspheres by the emulsion-solvent evaporation method. Some microspheres properties, such as microencapsulation efficiency and particle size, were affected by the organic solvent used. Depending on the organic solvent used microparticles obtained exhibited different controlled release profiles. In all cases it was extended up to 15 days. The obtained formulations did not exhibit zero- or first-order release kinetics and non-agreement with the Higuchi or Korsmeyer-Peppas models was found. On the other hand, the model proposed by Gallagher and Corrigan for PLGA systems described fully the drug dissolution processes from the microspheres obtained. A relationship between the ibuprofen solubility in both organic solvents studied and some parameters estimated for the dissolution model of the microparticles prepared with these solvents was also found. Thus, it could be propose that the drug solubility in different organic solvents affects the physical characteristics of microparticles and their dissolution profiles.
NUMERICAL CALCULATION AND EXPERIMENTAL STUDY OF AXIAL FORCE IN A DEEP-WELL CENTRIFUGAL PUMP
Authors: ZHOU L. , SHI W. D. , BAI L. , LU W. G. , LI W.
Published: July 2021

In the operation process of centrifugal pumps, especially in multi-stage pumps, axial force is one of the main factors which affect the pump safety and reliability. This paper presents the axial force study in a deep-well centrifugal pump (DCP) with theoretical calculation, numerical simulation and experimental measure. Three different calculation formulas were respectively introduced and used in the model pump. The calculated results were compared and analyzed with the numerical simulation values and experimental results, and the detailed numerical simulation methods and experimental configuration were explained. Finally, the more accurate formula for calculating the axial force in oblique flow centrifugal impeller was selected out. At the rated flow point, the deviation of the axial force obtained by numerical simulation and the experimental value is approximately 3.8%, and the calculated result of selected formula only less than the experimental results of 2.6%. The results provide a theoretical basis for the axial force calculation in the centrifugal impeller design process.
HIGH-SENSITIVE BIOACTIVITY ASSAY FOR HYBRID NANOSTRUCTURED MATERIALS WITH PLASMONIC PROPERTIES
Authors: HERNÁNDEZ-LÓPEZ J. L.
Published: July 2021

The binding of biotin to gold nanorods (Au-NRs) conjugated to neutravidin is accompanied by an increase in the fluorescence intensity of protein´s tryptophan residues. Localized surface plasmon resonance (LSPR), combined with the known affinity of streptavidin for biotin, led to the development of a high-sensitive enzyme activity assay.
EFFECTS OF BUTTER OIL AND WHEY PROTEINS ADDITION ON VISCOELASTIC PROPERTIES OF CONFECTIONARY DULCE DE LECHE
Authors: OLIVARES M. L. , PAULETTI M. S. , COSTA S. C. , DE PIANTE VICÍN D. , RUBIOLO A. C.
Published: July 2021

The effect of butter oil and whey proteins addition on viscoelastic properties of confectionary Dulce de Leche was evaluated. A two factors experimental design (0-8 % p/v of butter oil and 0-1 % p/v of whey proteins) was analysed. Frequency sweep tests were carried out and for all formulations studied a weak gel like behavior was observed. Therefore, results were interpreted using a weak gel model for foods. It was observed that the rheological behavior of the sample with addition of whey proteins and butter oil is significantly different than the others because rheological units interact with greater strength. Even more, the sample without butter oil and with whey proteins addition is composed by less rheological units than the others. It is concluded that the whole addition of butter oil and whey proteins generates a stronger gel matrix, more appropriate for use in confectionary.
INFLUENCE OF TEMPERATURE AND PH ON THE DECOMPOSITION KINETICS OF PERACETIC ACID IN AQUEOUS SOLUTIONS
Authors: KUNIGK L. , GALIZIA S. P. , SHIKISHIMA R.T. K. , GEDRAITE R. , JURKIEWICZ C. H.
Published: July 2021

Peracetic acid (PAA) is a strong oxidant used by the food industry as a sanitizer, in medical area as a disinfectant and by the textiles and paper industries as a bleacher. Its decomposition rate is an important parameter in these applications. The main purpose of this paper is to study the decomposition kinetics of PAA between 25 and 45 °C in solutions with pH 3.11, 5.0 and 7.0. The decomposition of PAA is a first-order reaction for all solutions and temperatures studied. The rate constants were between 2.08·10-3 and 9.44·10-3 h-1 (pH 3.11), between 2.61·10-3 and 16.69·10-3 h-1 (pH 5.0) and between 7.50·10-3 and 47.63·10-3 h-1 (pH 7.0). The activation energy of PAA decomposition in aqueous solutions are 58.36 and 72.89 kJ·mol-1 when pH was 3.11 and 5.0, respectively.
IMPLEMENTATION OF PREDICTIVE MULTIVARIABLE DMC CONTROLLER IN A PILOT PLANT
Authors: PEREIRA R.P. A. , DE ALMEIDA G. M. , CUADROS M.S. L. , MUNARETO S. , FÉLIX SALLES J. L.
Published: July 2021

This study aims to implement the predictive multivariable DMC controller in a real plant and compare it to multi-loop PID. The practical application is made in a pilot plant located in the IFES / Serra, where pressure and level are controlled with pump speed and valve opening. Tuning of the DMC controller is obtained through a simulator based on genetic algorithm. The plant responses to step using multi-loop PID and DMC are compared with and without constraints on valve opening and pump speed. The DMC controller is also tested with output restriction (pressure and level). The didactic interface developed with LabVIEW software is used to interact with MATLAB and CompactRIO controller, allowing the use of MATLAB optimization functions in the implementation of the DMC controller.
Neglected intrauterine bilateral congenital knee dislocation
Authors: Çıraklı Sevgi , Çıraklı Alper
Published: July 2021

Bilateral congenital knee dislocation is a rare deformity which may present with other musculoskeletal abnormalities. In the early period, conservative treatment options have a high chance of success. However, in later stages, surgical treatment is indicated in neglected or unresponsive cases to manipulation in the early period. Herein, we present a rare case of bilateral congenital knee dislocation which was diagnosed after birth. Retrospective examination revealed that it occurred in the antenatal period and neglected.
COOPERATION OF INSTITUTIONS IN THE DEMOCRATIC STATE. EUROPEAN UNION MODEL
Authors:   Academy of Public Administration, Republic of Moldova, Rosca Ludmila
Published: July 2021

In this study, the author explains the priority position on the agenda of scientists from various segments of social sciences. In the contemporary western political theory from the end of the 1990s, the theoretical and practical resizing of political institutions becomes a priority both within the states and in the regulation of international relations. The analysis of various approaches of political and social institutions allowed the author to conclude that governance, including coalition governance, can be effective in terms of co-working, cooperation, collaboration and active participation of citizens in the decision-making process. Also, the cultural and moral component of the decision factor is important, regardless of the practiced level: local, national, regional, global. The author places the theses promoted by Moldovan scholars at the basis of the activity of the heads of state institutions and of the civil servants.
INTERNATIONAL PROTECTION SYSTEMS AND MECHANISMS OF HUMAN RIGHTS APPLICABLE IN THE REPUBLIC OF MOLDOVA
Authors:   Academy of Public Administration, Republic of Moldova, Ctitor Natalia
Published: July 2021

Fundamental human rights and freedoms are respected insofar as they are known to society at large and to each individual in particular, and become known only to the extent that they are acquired. The formation of the legal culture, in the stated sense, is an essential field of activity of the state authorities, becoming a necessity for each individual to have sufficient knowledge in order to be aware of the content and essence of his rights, freedoms and possibilities, so that later he should show respect and tolerance for the similar rights of other members of society, as well as of society as a whole
EVOLUTION OF THE CONCEPT OF SECURITY IN DIFFERENT EPOCHS AND CULTURES IN THE CONTEXT OF SOCIAL AND HISTORICAL DEVELOPMENT
Authors:   Academy of Public Administration, Republic of Moldova, Sakovici Vasilii
Published: July 2021

The article examines the concept of "security" and its evolution in different epochs, as well as its impact on national security concepts, the essence of which boils down to the ability of the state to protect national values and state interests in specific historical external and internal conditions. As a result of the study, the author shows that at different stages of historical social development there were different aspects of understanding security, which significantly influenced the configuration of systems of interstate relations and the perception of the international situation. It is concluded that a comprehensive understanding of the semantic content of the concept of security in different epochs and in different cultures helps to better comprehend the modern system of international and national security.
STRATEGIC COMMUNICATION AND THE NEW PUBLIC DIPLOMACY: CONSUBSTANTIALITY AND PERCEPTION IN THE NATIONAL PUBLIC SPACE
Authors:   Academy of Public Administration, Republic of Moldova, Peru-Balan Aurelia , Calugaru Corina ,   Council of Europe
Published: July 2021

In this article we aim to make a synthesis of the concepts "public diplomacy" and "strategic communication". We also try to identify the correlation between these two communication phenomena and their perception at the level of national public opinion. In the context of the confrontation between East and West, of geopolitical confrontations, the concept of "strategic communication" is perceived in the European space mainly as a way to protect European values and secure the European information space.
Partial wave basis adapted to exterior boundary conditions of an elastic plate
Authors:   Horia Hulubei National Institute for Physics and Nuclear Engineering, Romania, Cojocaru Sergiu
Published: July 2021

An approach to describing normal elastic vibration modes in confined systems is presented. In a standard treatment of the problem, the displacement field is represented by a superposition of partial waves of a general form, e.g., plane waves. The unknown coefficients of superposition are then obtained from the equation of motion and the full set of boundary conditions. In the proposed approach, the functional form of partial waves is chosen in such a way as to satisfy the boundary conditions on exterior surfaces identically, i.e., even if the unknown quantities determined by the remaining constraints are found in an approximation, numerically or analytically. Some examples of solutions for composite elastic plates are discussed to illustrate the efficiency of the approach and its relevance for applications.
Coordination complex [Eu(μ2-OC2H5)(btfa)(NO3) (phen)]2·phen with high luminescent efficiency
Authors:   Institute of Applied Physics, Republic of Moldova, Iovu Mihail S. , Verlan Victor I. ,   Institute of Applied Physics, Republic of Moldova, Culeac Ion P. ,   Institute of Applied Physics, Republic of Moldova, Bordian Olga ,   Institute of Applied Physics, Republic of Moldova, Zubareva Vera E. ,   Institute of Chemistry, Republic of Moldova, Bulhac Ion ,   Institute of Chemistry, Republic of Moldova, Enachescu Marius ,   Polytechnic University of Bucharest, Romania, Siminel Nichita A. ,   Institute of Applied Physics, Republic of Moldova, Siminel Anatol V. ,   Institute of Applied Physics, Republic of Moldova
Published: July 2021

Experimental results on the bis[(μ2-etoxi)(benzoyl trifluoroacetonato)(nitrato)(1,10-phenantroline)europium(III)]1,10-phenantroline europium(III) coordination complex (hereafter, [Eu(μ2-OC2H5)(btfa)(NO3)(phen)]2·phen) are described. The complex is characterized by photoluminescence (PL) and infrared spectroscopy. Photoluminescence spectra of the complex exhibit strong emission with specific narrow emission bands associated with the 5D0→7Fj (j = 0–4) transitions. The pattern of emission band splitting and the luminescence time decay suggest the presence of at least two different sites of the Eu3+ ion in a low-symmetry environment. The absolute PL quantum yield of the complex is determined to be 49.2%.
De Novo Urinary Symptoms after Pelvic Organ Prolapse Repair Surgery: A Cross Sectional Study at AKU Hospital
Authors: Ilyas S. , Najmusahar S. , Rehmani D. , Agha S. , Mushtaq N.
Published: July 2021

Objective: To determine the frequency of new onset urinary symptoms after surgery for pelvic organ prolapse repair. Study Design: Descriptive Cross-Sectional Study. Place and Duration: This study was conducted at Outpatient Gynecological Clinics, Aga Khan University Hospital (AKUH) Karachi, Pakistan from January 19, 2018 to July 18, 2018. Materials and Methods: Eighty one women were included in the study. Informed consent was taken after explaining the procedure, risks and benefits of the study. Women who underwent POP repair surgery in the past 6 weeks were recruited. They were asked to complete the proforma including personal information and details of all urinary symptoms like frequency, urgency and incontinence etc. provided by residents after informed consent through validated questionnaire UDI SF6. All the collected data were entered into the proforma attached at the end and used electronically for research purpose. Results: Mean ± SD of age was 52.75±9.71 years. Out of 81 patients, 47 (58%) women were menopause. In frequency of new onset of urinary symptoms De novo urinary incontinence was noted in 12 (14.8%) women, 20 (24.6%) had De novo urges urinary incontinence, while 15 (18.5%), 28 (34.5%) and 20 (24.6%) women had De novo stress urinary incontinence, De novo urinary frequency and De novo urinary urgency respectively. Conclusion: It is to be concluded that De novo urinary frequency was found to be the most common new onset urinary symptoms followed by De novo urinary Urgency and De novo Urge Urinary Incontinence. Keywords: De novo urinary symptoms, Pelvic Organ Prolapse (POP), Post- Operative Stress Urinary Incontinence (SUI), Quality of Life (QoL), Urinary Incontinence (UI)
Awareness of House Surgeons regarding Denture Adhesives in Dental Colleges of Islamabad and Rawalpindi
Authors: Khawaja M. S. A. , Masood A. , Ahmed T. , Anwar P. , Bin Sohail R. Saad , Javed F.
Published: July 2021

Study Design and Setting A cross-sectional, questionnaire-based research was carried out. The questionnaires were filled by a total of 350 dental house surgeons who were working in various dental colleges of Islamabad and Rawalpindi in Pakistan. Objectives The objective was to assess the knowledge and mentality of dental house surgeons regarding the proper use, application and limitations of denture adhesives. Methodology A survey questionnaire was distributed among the dental house surgeons (n = 350). Cross tabulations were done and the Pearson’s Chi‑square test was used to compare the variables using the Statistical Package for Social Sciences (P ≤ 0.05). Results Approximately, 85.5% of house surgeons who answered the questionnaire had learnt some of the basics about adhesives as part of their undergraduate studies. 73% agreed that Adhesives can be useful in aiding the stabilization and retention of dentures, and 95% agreed that dentists should inform denture patients about the proper use. However only a relatively small percentage (38%) routinely informed patients about the potential misuse of adhesives as part of their instructions. Conclusion Majority of the house surgeons had sound knowledge about DAs and agreed for the need to increase patient awareness towards these products. Sufficient dentist and patient knowledge towards denture adhesives is paramount in establishing patient satisfaction and knowledge towards dentures usage. Key words Denture adhesives, Awareness, Knowledge, Questionnaire
Phage therapy is an important replacement for the antibiotic resistance
Authors: Farmehr P.
Published: July 2021

Antibiotic resistance has become a significant and growing threat to public and environmental health. The emergence of multiple drug-resistant bacteria has prompted interest in alternatives to conventional antimicrobial. One of the possible replacement options for antibiotics is the use of bacteriophages as antimicrobial. We were forced to look for a new approach in treatment. Phage therapy is an important alternative antibiotic in the current of drug-resistance pathogens. In this way, poisoning bacteria bacteriophage bacteria infect and replicate in bacteria, in this therapy, identify the type of virus per person and can be targeted manipulation of harmful bacteria and then returned the person and invented phage therapy. We discuss the advantages and disadvantages of bacteriophages as therapeutic agents in this regard. And so describe a brief history of bacteriophages and clinical studies on their use in bacterial disease. Much hope is placed in genetic modifications of bacteriophages prevents the development of phage-resistant bacteria. Keywords: antibiotic resistance‚ bacteriophage, phage therapy
Prescribing Pattern and Pharmacist Intervention in Anticoagulation at A Tertiary Care Teaching Hospital, Coimbatore, India
Authors: Kanafileskookalayeh S. , Bhojan C.
Published: July 2021

Objective: To assess the prescribing pattern and pharmacist intervention in anti-coagulation at a tertiary care teaching hospital, Coimbatore, India Methodology: Data was gathered utilizing a well-structured data collection structure which includes patient's demographics, clinical data which includes (indication for anticoagulation therapy, wanted INR range, anticipated length of therapy, anticoagulation therapy got), social propensities, past medical history, current prescriptions and the prescribed oral anticoagulant (Warfarin/Acitrom). INR values were observed for the patients remembered for the investigation and dosage adjustment was finished by standard convention dependent on the INR value. The patients were also provided with effective counseling regarding the therapy and dietary modifications. All the patients were monitored for any adverse drug events/effects or any possible drug and food interactions during the study period. In case of any reported adverse events/drug associations in the anticoagulation facility, the legitimate intervention was finished by the clinical pharmacist in relationship with a physician to accomplish objective drug therapy. Result: During our study period, 86 patients were forwarded by the physicians to the clinical pharmacist managing the oral anticoagulation clinic. Only 70 patients could complete the study, where 4 patients did not visit the clinic, other 12 patients did not meet the inclusion criteria and hence they are excluded. The data were collected using data collection form for the study sample. After the interventional study, there was a significant improvement in patients maintaining % of INRs which were in target therapeutic range, % of TTR along with decreased adverse effects. It was also found that the patient’s awareness of the target INR values is correlated with the improved accuracy of anticoagulation control. Hence, our study results reflect the need for a clinical pharmacist in oral anticoagulation management and the necessity of implementing anticoagulation services in various hospital settings. Conclusion: the clinical pharmacist managing anticoagulation service was able to achieve the INRs of the patient in to target therapeutic range by proper and timely dose adjustments based on the INR value, to identify adverse drug reactions/ adverse events, drug-drug interactions, and drug-food interactions and bring about proper interventions by working in association with physicians. Keywords: anticoagulant, Clinical pharmacist intervention, INR results, Physician intervention,
Article 8: the pace of change
Authors: Liddy Jane
Published: July 2021

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Peer Repair in a Second Language Class: A Conversation Analytic Study
Authors:   School of Foreign Studies, University of Science and Technology Beijing, Gao Ziyang
Published: July 2021

Conversation analysis is a significant approach on research of the second language teaching and learning, among which repair has attracted more and more attention from scholars. This study investigates peer repair sequences between three nonnative speakers of English while they engaged in free talk in the second language classroom. 40 minutes of naturally occurring talk between nonnative speakers were collected and analyzed. The present study reports on the data shows two types of peer repair: first, self-initiated and other-corrected; second, other-initiated and other-corrected. The analysis of the peer repair sequences shows that the self-initiated and other-corrected repair sequences follow a pattern of asking for confirmation on the production of a language item and receiving a correction, while the other-initiated repair do not follow the rules of preference for self-correction described in conversation analysis.
Spontaneous pneumomediastinum COVID-19: Impact of mechanical ventilation
Authors: Oze Koudouhonon Rita , Rita Aubin Igombe Suzanne , Wilson Biziman , Jerguigue Hounayda , Latib Rachida , Omor Youssef
Published: July 2021

No Abstract
EMISSÕES DE GASES DE EFEITO ESTUFA PROVENIENTES DOS RESÍDUOS SÓLIDOS DO MUNICÍPIO DE LIMEIRA DO OESTE-MG ANO BASE 2017
Authors: Lorena Rodrigo Barbosa , Sanquetta Carlos Roberto , Tagliaferro Evandro Roberto , Vasconcelos Osmar Luis Silva
Published: July 2021

O aumento nos padrões de produção e consumo da sociedade nos dias atuais tem levado a uma maior geração de resíduos sólidos. Além disso, a destinação final dos resíduos sólidos tem contribuído para o aumento das emissões de gases de efeito estufa (GEEs). Nesse contexto, o presente artigo teve como objetivo estimar as emissões de gases de feito estufa (GEEs) provenientes dos resíduos sólidos do município de Limeira do Oeste-MG no ano de 2017. Para a realização do plano de gestão integrada de resíduos sólidos, foi realizada uma análise gravimétrica para se descobrir a composição dos resíduos sólidos municipais. Assim, durante uma semana, as três coletas foram feitas, sendo que os resíduos dessas coletas foram despejados em uma lona e processou-se o quarteamento, sendo colocados em coletores devidamente identificados, que, quando cheios, tiveram seus pesos medidos e anotados. 647,1 kg de resíduos sólidos foram amostrados, totalizando um volume de 6,92 m³. Com isso, chega-se a uma estimativa de que o município de Limeira do Oeste-MG gera, diariamente, 2.302,9 kg de massa com um volume de 24,64 m³ (a geração diária por habitante é de 0,307 kg de resíduos sólidos) ou 112,05 kg por ano por habitante, totalizando 840.558,50 kg de resíduos sólidos gerados no ano de 2017. Para se calcular as emissões de GEEs, utilizou-se o GHG Protocol versão 2020.1.2, tendo sido inseridos o total de resíduos anual e a composição desses resíduos.  Observou-se um valor de emissões de 13,940 CH4 (t/ano) e 348,502 CO2e (t/ano). As medidas para reduzir as emissões foram a proposta de reciclagem com associação de catadores, a educação ambiental e a instituição de taxa de serviço de coleta e disposição de resíduos sólidos.
CARACTERÍSTICAS MORFOLÓGICAS E FISIOLÓGICAS DE ISOLADOS DE Colletotrichum ASSOCIADOS À ANTRACNOSE DA ERVA-MATE
Authors: Bilenki Junior Valdomiro , Auer Celso Garcia , Wolf II Neumar Irineu
Published: July 2021

O valor histórico, cultural e econômico da erva mate a tornam uma espécie florestal de rara importância. A cultura é atacada por inúmeras doenças de natureza fúngica, destacando-se a antracnose, cujo agente causal pertence ao gênero Colletotrichum. Com o objetivo de fazer a caracterização morfológica e fisiológica de isolados de Colletotrichum, materiais com sintomas típicos da doença foram coletados em quatro diferentes municípios do Paraná: Colombo, União da Vitória, Cruz Machado e Guarapuava. As amostras foram processadas no Laboratório de Patologia Florestal da Embrapa Florestas, Colombo PR através dos métodos direto (tecidos doentes mantidos em câmara úmida constituída de caixas gerbox com papel mata-borrão umedecido com água ultrapurificada) e indireto (fragmentos de tecido doente superficialmente descontaminados, seguido de plaqueamento em meio de cultura Batata-Dextrose-Ágar mais antibiótico). A coloração das colônias variou de laranja a salmão e os tipos de conídios encontrados foram: cilíndrico, fusiforme, cilíndrico com ápice arredondado e ovoide. Houve diferença estatística entre os isolados quanto à temperatura de cultivo; a temperatura ótima para os isolados de União da Vitória, Colombo e Cruz Machado foi de 23°C e 22,6°C e para o isolado de Guarapuava 22,6°C.
PROPOSIÇÕES SOBRE A FORMAÇÃO INICIAL DE PROFESSORES
Authors: Lopes João Pedro Goes
Published: July 2021

O presente artigo objetiva firmar posição sobre a formação inicial de professores, dialogando com proposições para o campo. Para tanto, apoia-se, principalmente, no campo teórico dos Estudos Culturais e fundamenta suas articulações a partir do conceito de cultura – com base nos escritos de Stuart Hall, para quem a cultura é traduzida em produções de significados que nunca se estabelecem sem um campo de luta. Apoiados em seis proposições, transitamos entre a formação em seu formato institucionalizado, sobre suas políticas e a produção da identidade docente promovida por essa formação. São elas: (1) a discussão em relação a profissão docente ser invariavelmente política; (2) a atenção à história da formação docente como possibilidade de continuidade do que já foi produzido e conquistado; (3) a formação para além dos espaços da própria formação inicial de professores; (4) a necessidade do permanente questionamento sobre o papel docente e sua identidade como forma de atuação crítica; (5) a urgência da ocupação de espaços pelos docentes como forma de firmar posições; (6) e, por fim, a argumentação de que universidade e escola precisam ser dois lados da mesma moeda. O principal intento é demonstrar a plasticidade da cultura e, por meio da perspectiva da multiplicidade, produzir resistência às representações que detratam a profissão docente e, atualmente, por meio de um discurso poderoso, o ensino superior, principalmente de caráter público.
Influence of overliming vineyard acid soils on the macro-nutritional status of grapevines
Authors: Olego Miguel A. , Quiroga Miguel J. , Cuesta Mateo , Oliveira Paula A. , Garzón-Jimeno José E.
Published: July 2021

Aim of study: The main aim of this study was to evaluate the effect of overliming with dolomitic lime on the topsoil and grapevine macro-nutritional levels (both petiole and grape tissues), as well as on berry weight and must quality properties in grapevines growing on an acid soil.Area of study: The study was carried out in the viticultural region of El Bierzo (Spain), one of the main wine protected designation of origin in the northwest of Spain.Material and methods: The effects of overliming were studied in soil parameters, petiole and grape tissues, as well as in must quality during three years (2014-2016). Data analysis was performed using factorial ANOVA (both parametric and non-parametric tests have been used).Main results: The results found on the soil levels of magnesium and phosphorus were mirrored by those shown in petiole and grape tissues. Data suggest that insufficient Mg supply in vineyard acid soils could lead to a lower P vascular movement in vines. Additionally, our findings suggest that a great decrease of K levels in vine tissues as a consequence of overliming, could lead to changes in harvest quality.Research highlights: Overliming with dolomitic limestone in large quantities decreased soil exchangeable K, as well as improved supply of exchangeable Mg and available P. Additionally Mg and P levels in both petiole and grape tissues were significantly affected by overliming.
New approach for two-phase flow calcuation of artifical lift
Authors:   «OilGasScientificResearchProject» Institute, SOCAR, Baku, Azerbaijan, Abdullayev V.J.
Published: July 2021

The article develops a method for adjusting design pressure of bellows gas lift valves in deviated gas lift wells based on research and calculations and provides a method for the arrangement of gas lift valves along tubing. As a result of the calculations, the valve opening pressure of the first gas lift valve was taken equal to the initial gas pressure, the valve opening pressure of the following valves was 0.05-0.175 MPa lower than that of the previous gas lift valve, and the pressure difference between the last valve and the second from the last valve was 0.28-0.35 MPa.
Petroleum sulfonates of the karpatol trademark as the most effective surfactants for acting on the formation of producing wells
Authors:   Ivano-Frankivsk National Technical University of Oil and Gas IFNTUOG, Ivano-Frankivsk, Ukraine, Kondrat O.R. , Rudyi S.M. ,   Research and Development Institute of PJSC «Ukrnafta», Ivano-Frankivsk, Ukraine, Rudyi M.I ,   Research and Development Institute of PJSC «Ukrnafta», Ivano-Frankivsk, Ukraine
Published: July 2021

Experimental studies and pilot test results of developed stimulation technologies with petroleum sulfonate indicate economic benefits of the use of Karpatol achieved due to significant reduction in interfacial tension surfactant-hydrocarbon (oil, condensate, petrol); increase of residual oil displacement factor, destruction of water-oil emulsions, partial permeability build-up of contaminated rock samples, advanced permeability of surfactants in nonuniform permeable and hydrophobic strata, influence on the rheology of viscous oils, improvement of wells development after stimulation, high technological efficiency of stimulation technologies using Karpatol, increase of production index after treatment.
Application of thermal methods in the Republic of Kazakhstan. Current projects and prospects
Authors:   Atyrau Branch of KMG Engineering, Atyrau, Kazakhstan, Mukhtanov B.M.
Published: July 2021

This article presents the results of assessment and prospectivity of high-viscosity oil reserves difficult to recover development technology application by means of thermal formation treatment based on analysis of Kenkiyak, Kumsai and Mortuk fields development.