bluuebunny/crossref_metadata_2025 huggingface dataset:
Bondage of the Red Shoes and Its Feminist Reinterpretation: Anne Sexton, Kathryn Davis, Yideum Kim
Authors:   The Criticism and Theory Society of Korea, Yoon Minwoo
Published: March 2023

For Hans Christian Andersen the red shoes syndrome indicates the supposedly feminine vanity and pride; contemporary feminist writers unveil the womanly innate desire for artistic behavior represented by the syndrome. But since this feminine desire had been a taboo, they had to interiorize it, but were not able to completely dampen it, hence often-times their desperate attempt to satisfy it, coupled with death instinct. This essay explores the red shoes syndrome in the works of Anne Sexton, Kathryn Davis, and Yideum Kim (a contemporary Korean poetess), as well as Alice Walker and a couple of others, with the special intention to demonstrate the shared desire among women a generation after another. As was already shown in “The Red Shoes” by Andersen, the shoe cannot be detached from human body and won’t stop dancing even after being separated. In the final analysis, this paper argues that the undying shoe is a zombie, which has only one-dimensional principle of behavior just like an object or a machine thus programmed. A zombie is, in this regard, an object the way that the red shoes are. In turn, the unremovable red shoes from the feet can be equivalent to a certain non-organic part of female body. Human body already has lots of non-organic ingredients in it, which are, of course, objects. The object of the red shoe, the non-organic bodily part, generates the affect of artistic satisfaction in our (especially, women’s) body.
DIAGNOSTIC METHODS IN KIENBOCK DISEASE
Authors: Kopcik Katarzyna
Published: March 2023

ABSTRACT Introduction Kienbock disease is relatively rare condition of aseptic necrosis of the lunate, which can be diagnosed using X-ray scans, CT scans, MRI scans and diagnostic arthroscopy. Aim Main aim of the paper is to sum up available knowledge of diagnostic methods of Kienbock disease with staging classifications. Material and methods The paper is based on academic literature and scientific publications, which are available in PubMed database. After evaluation of article’s abstracts, articles were selected and analysed with the references citated. Conclusions There are different methods of radiological diagnostics of Kienbock disease. MRI scans and diagnostic arthroscopy appear to be the most detailed techniques, but X-ray scan should be ordered as primary radiological examination during diagnostic process. Ultrasonography is not useful while searching for a diagnosis.
Eating Habits During Pregnancy of Women Giving Birth Very Prematurely: An Exploratory Analysis
Authors: Teixeira Beatriz , Cardoso Manuela , Dias Claúdia Camila , Pereira-da-Silva Luís , E Silva Diana
Published: March 2023

Introduction: Preterm birth is increasing worldwide, representing a major cause of death and long-term loss of human potential among survivors. Some morbidities during pregnancy are well-known risk factors for preterm labor, but it is not yet known whether deviations from adequate dietary patterns are associated with preterm delivery. Diet may be an important modulator of chronic inflammation, and pro-inflammatory diets during pregnancy were reported to be associated with preterm birth. The aim of this study was to assess the food consumption during pregnancy of Portuguese women giving birthvery prematurely and the association between the food consumption and the major maternal morbidities during pregnancy related with preterm delivery.Material and Methods: A single-center cross-sectional observational study including consecutive Portuguese women giving birth before 33 weeks of gestation was conducted. Recall of eating habits during pregnancy was obtained within the first week after delivery, using a semi quantitative food frequency questionnaire validated for Portuguese pregnant women.Results: Sixty women with a median age of 36.0 years were included. Of these, 35% were obese or overweight at the beginning of pregnancy, 41.7% and 25.0% gained excessive or insufficient weight during pregnancy, respectively. Pregnancy-induced hypertension was present in 21.7% of cases, gestational diabetes in 18.3%, chronic hypertension in 6.7%, and type 2 diabetes mellitus in 5.0%. Pregnancy-induced hypertension was significantly associated with increased daily consumption of pastry products (31.2 vs 10.0 g, p = 0.022), fast food (39.6 vs 29.7 g, p = 0.028), bread (90.0 vs 50.0 g, p = 0.005), pasta, rice and potatoes (225.7 vs 154.3 g, p = 0.012). In a multivariate analysis, only bread consumption maintained a significant, albeit weak,association (OR = 1.021; 1.003 – 1.038, p = 0.022).Conclusion: Pregnancy-induced hypertension was associated with increased consumption of pastry products, fast food, bread, pasta, rice, and potatoes, although only bread consumption had a weak but statistically significant association with pregnancy-induced hypertension in a multivariate analysis.
Cartografia de uma Escuta Clínica do Trabalho em Tempos Pandêmicos
Authors: Bezerra Maria de Lourdes Cordeiro de Araújo , Francisco Ana Lúcia
Published: March 2023

Este artigo traz reflexões sobre uma proposta de escuta clínica de grupos de trabalho, a partir de experiências realizadas em plena vivência da pandemia de covid-19, com fundamento teórico-metodológico na Cartografia concebida por Deleuze e Guattari. Essas experiências, todas ocorridas na modalidade on-line, tiveram como objetivo proporcionar, coletivamente, o acolhimento e a expressão dos sentimentos vivenciados em razão da necessidade de distância física imposta pela pandemia, de modo a contribuir para lidar com as questões do ambiente laboral. Constatamos a potência e a riqueza da abordagem cartográfica, em razão de sua proposição de abertura ao devir, da ideia de produção conjunta de conhecimento entre a/o profissional ou equipe que propõe a intervenção e o coletivo objeto desta, e da dimensão ético-estético-política que orienta esse fazer clínico.
Psicologia e Políticas Públicas no Sudeste Paranaense: Potencialidades e Desafios
Authors: Moraes Pedro Henrique , Zambenedetti Gustavo
Published: March 2023

A atuação da Psicologia nas políticas públicas se expandiu no Brasil. O objetivo deste estudo foi mapear a inserção de psicólogas(os) no Sistema Único de Saúde (SUS) e no Sistema Único de Assistência Social (SUAS) em uma Regional no Estado do Paraná, Brasil. Foi realizada uma pesquisa descritiva, por meio da consulta aos Cadastros Nacionais e cruzamento com consulta às gestões dos nove municípios da Regional. Foi identificada a inserção de 20 psicólogas no SUS e 28 no SUAS. Na assistência social, predomina a atuação na proteção social básica e o vínculo estatutário, enquanto na saúde predomina a atuação no nível especializado, com contratos via pessoa jurídica. A discussão ressalta três aspectos: a defasagem dos cadastros em relação aos serviços; as particularidades da inserção da psicologia nas políticas públicas; os vínculos e a precarização do trabalho. Diante do cenário de consolidação da inserção da Psicologia nas políticas públicas, indicam-se desafios à atuação e formação profissional.
Use of Psychiatric Drugs Among Healthcare Workers in Extreme Southern Brazil During the Covid-19 Pandemic
Authors: Peres Tyele Goulart , Tramontina Marina Scarler Meira , Castro Yasmin Marques , Zhang Linjie , Souza Ivy Bastos Ramis de
Published: March 2023

Aim: To describe the use of psychiatric drugs among healthcare workers (HCWs) at some point in their lives and during the Covid-19 pandemic. Methods: This cross-sectional study was conducted in the city of Rio Grande, Rio Grande do Sul, extreme southern Brazil, between June and September 2021. The study sample consisted of 147 HCWs (doctors, nurses, nursing technicians, radiology technicians, and physiotherapists) in two hospitals. The outcome was accessed through two questions: 1. Have you ever used any psychiatric drugs? (No/Yes); 2. Did you start to use psychiatric drugs (for the first time) during the Covid-19 pandemic? (No/Yes). In addition, the characteristics related to the use of psychiatric medications were also investigated. Results: 44.2% of HCWs used psychiatric drugs at some time in their lives, of whom 40% started to use such drugs during the Covid-19 pandemic (17.7% of the whole study sample). Antidepressants were the most commonly used drugs (46.1%), and 50% used the drugs for anxiety. About 43% reported that the drugs were not prescribed by doctors. Conclusions:  Use of psychiatric drugs, especially self-medicating, is common among hospital HCWs, and the Covid-19 may have increased such behavior.
Uji Sediaan Krim Ekstrak Daun Kratom (Mitragyna Speciosa Korth.) yang Berpotensi sebagai Antinosiseptif pada Mencit Jantan Galur DDY
Authors: Anindita Puspita Raras , Setyawati Herni , Wahyuni Khurin In , Putri Dwi Oktavia , Ambari Yani
Published: March 2023

Penelitian ini bertujuan untuk mengevaluasi potensi antinosiseptif pada sediaan krim ekstrak daun kratom dan menentukan dosis efektifnya. Metode ekstraksi daun kratom yaitu dengan cara remaserasi menggunakan pelarut etanol 70%. Hasil ekstrak kental yang diperoleh dari proses maserasi dimasukkan ke dalam sediaan vanishing cream dengan dosis 0,26 gram; 0,56 gram; dan 0,86 gram. Pengujian antinosiseptif menggunakan metode hotplate test pada mencit jantan galur Deutschland Denken Yoken (DDY). Hasil pengamatan dianalisis menggunakan statistik nonparametrik Kruskal Wallis dan uji persamaan regresi linier. Hasil analisis menunjukkan bahwa ketiga dosis krim ekstrak daun kratom memiliki perbedaan dan pengaruh terhadap jumlah loncatan kaki pada hewan coba jika dibandingkan dengan kelompok kontrol negatif yang berpotensi sebagai antinosiseptif namun kurang bermakna, karena tidak menggunakan kontrol positif. Kata Kunci: Antinosiseptif, Krim,Uji Sediaan, Daun Kratom, Mitragyna speciosa Korth.This study aims to evaluate the antinociceptive potential of kratom leaf ekstract cream and determine its effective dose. The kratom leaf extraction method  used maceration using 70% ethanol solvent. The crude extract obtained from the maceration process is put in to the vanishing cream preparation at a dose of 0.26 grams, 0.56 grams, and 0.86 grams. Antinociceptive testing used the hot plate method on DDY strain male mice. The results of the observations were analyzed using nonparametric statistics “kruskal wallis” and linear regression equation test. The results of analysis showed that the three doses of kratom leaf extract cream had an effect on the number of jumps on the legs of experimental animals when compared to the negative control group which had the potential to be antinociceptive but less significant, because it did not use a positive control.
PENGARUH RASIO LIKUIDITAS, KEBIJAKAN DIVIDEN DAN UKURAN PERUSAHAAN TERHADAP HARGA SAHAM (Studi Empiris Pada Perusahaan Industri Yang Terdaftar di BEI Tahun 2017-2020)
Authors: Aminatuzzuhro  , Rahman Halik Bachtiar , Pujianto Pujianto , Zullaika Fitri Ramadhani
Published: March 2023

Penelitian ini untuk menguji dan menganalisis pengaruh rasio likuiditas, kebijakan dividen dan ukuran perusahaan terhadap harga saham pada perusahaan Industri yang Terdaftar di BEI tahun 2017-2020. Jenis penelitian ini menggunakan statistik deskriptif dengan pendekatan kuantitatif. Teknik pengumpulan data menggunakan metode dokumenasi yaitu dengan mengumpulkan data dari hasil laporan keuangan yang diterbitkan melalui website resmi Bursa Efek Indonesia (BEI). Jumlah sampel pada penelitian ini sebanyak 9 perusahaan industri yang terdaftar di BEI tahun 2017-2020. Penentuan sampel menggunakan teknik purposive sampling dengan kriteria tertentu dan menggunakan teknik analisis regresi berganda. Analisis data menggunakan alat bantu SPSS 25. Hasil penelitian ini diperoleh secara simultan rasio likuiditas, kebijakan dividen dan ukuran perusahaan berpengaruh signifikan terhadap harga saham pada perusahaan Industri yang terdaftar di BEI tahun 2017- 2020. Hasil ini menunjukkan secara parsial rasio likuiditas tidak berpengaruh signifikan terhadap harga saham, kebijakan dividen tidak berpengaruh signifikan terhadap harga saham dan ukuran perusahaan berpengaruh signifikan terhadap harga saham.
Known modifiable risk factors of cancer.
Authors: Justiz-Vaillant Angel , Gopaul Darren
Published: March 2023

In this study was found that these cancers were attributable to risk factors such as cigarette smoking, second-hand smoke, alcohol intake, excess body weight, diet, and six cancer-associated infections. Several databases were reviewed including PUBMED, Google scholar, and Web of Science. The facts suggest that a number of individuals present risk factors for cancer, which can be modifiable.
Post-Processing of Surface Topography Data for As-Built Metal Additive Surface Texture Characterization
Authors: Buchenau Theresa , Bruening Hauke , Amkreutz Marc
Published: March 2023

Surfaces of additively manufactured metal parts from powder-based processes typically show powder particle agglomerations and other features, resulting in high surface roughness. Proper characterization of those surfaces is necessary in order to assess part quality with respect to coatability, mechanical performance or corrosion resistance for use in aerospace, automotive, medical and more industrial applications. Optical surface texture measurement allows for collection of areal surface data, while the established contact stylus method only captures line profile data. When applying optical methods for surface topography measurements, proper data acquisition and post-processing in order to assess surface texture may be complex. A number of variables can be adjusted, such as different measurement settings, approaches to outlier removal, evaluated area size or form removal. This work shows the influence of selected z-range prior to measurement and the influence of choosing pre-defined outlier removal settings in MountainsMap 9.2 on selected ISO 25178-2:2022 parameters calculated from data obtained from confocal microscopy for as-built Ti6Al4V from laser powder bed fusion. The aim is to show the influence of variation in measurement and post-processing on calculated surface texture parameters and stress the importance of proper documentation in order to achieve reproducibility of data for quality management.
One Scaffold, Two Conformations: The Ring-Flip of the Messenger InsP8 Occurs under Cytosolic Conditions
Authors: Kurz Leonie , Schmieder Peter , Veiga Nicolás , Fiedler Dorothea
Published: March 2023

Inositol poly- and pyrophosphates (InsPs and PP-InsPs) are central eukaryotic messengers. These very highly phosphorylated molecules can exist in two distinct conformations, a canonical one with five phosphoryl groups in equatorial positions, and a “flipped” axial conformation. Using 13C-labeled InsPs / PP-InsPs, the behavior of these molecules was investigated by 2D-NMR under solution conditions reminiscent of a cytosolic environment. Remarkably, the most highly phosphorylated messenger InsP8 readily adopts both conformations at physiological conditions. Environmental factors - such as pH, metal cation composition, and temperature - strongly influence the conformational equilibrium. Thermodynamic data revealed that the transition of InsP8 from the equatorial to the axial conformation is, in fact, an exothermic process. The speciation of InsPs and PP-InsPs also affects their interaction with protein binding partners; addition of Mg2+ decreased the binding constant Kd of InsP8 to an SPX protein domain. The results illustrate that PP-InsP speciation reacts very sensitively to solution conditions, suggesting it might act as an environment-dependent molecular switch.
A Feasibility Analysis of a Solar Power Plant with Direct Steam Generation System in Sonora, Mexico
Authors: Enciso Contreras Ernesto , Barbosa-Saldaña Juan Gabriel , Cruz Alejo Jesus de la , Gutiérrez-Torres Claudia Del C. , Jimenez Bernal Jose Alfredo , Arce Vazquez Maria Belem
Published: March 2023

Power generation using renewable technologies has become a primordial option to satisfy the energy demand all over the world, being solar concentrating technologies widely applied for this purpose. A combination of Parabolic Trough Collector with Direct Steam Generation has been considered an excellent option for power generation, due to the economic cost and complexity in the plant are reduced. The thermal evaluation of the solar power plant as well as the PTC in the DSG process is very important in viability and economic analysis. In this sense, as the main objective of this work, a numerical tool for evaluating DSG with PTC technology has been developed. The software SOLEEC is a versatile, reliable, accurate and friendly to the user for thermally evaluating a DSG with PTC technology. The user has the possibility to compare the thermal behavior of different geometrical dimensions for a PTC; and even consider different materials; in order to satisfy the demand of superheated steam by a DSG process. The software has an error less than 5% when compared with literature results and in this paper is used to evaluate a power plant in Mexico obtaining that the change to DSG proposing different PTC could reduce the solar field about 35%.
Efficient Use of Quantum Linear System Algorithms in Interior Point Methods for Linear Optimization
Authors: Mohammadisiahroudi Mohammadhossein , Fakhimi Ramin , Terlaky Tamás
Published: March 2023

Quantum computing has attracted significant interest in the optimization community because it potentially can solve classes of optimization problems faster than conventional supercomputers. Several researchers proposed quantum computing methods, especially Quantum Interior Point Methods (QIPMs), to solve convex optimization problems, such as Linear Optimization, Semidefinite Optimization, and Second-order Cone Optimization problems. Most of them have applied a Quantum Linear System Algorithm at each iteration to compute a Newton step. However, using quantum linear solvers in QIPMs comes with many challenges, such as having ill-conditioned systems and the considerable error of quantum solvers. This paper investigates how one can efficiently use quantum linear solvers in QIPMs. Accordingly, an Inexact Infeasible Quantum Interior Point Method is developed to solve linear optimization problems. We also discuss how we can get an exact solution by Iterative Refinement without excessive time of quantum solvers. Finally, computational results with a QISKIT implementation of our QIPM using quantum simulators are analyzed.
Does ESG Impact a Firm’s Sustainability Performance? The Mediating Effect of Firm Innovation Performance
Authors: Zhou ShuKang , Rashid Md. Harun Ur , Mohd. Zobair Shah Asadullah , Sobhani Farid Ahammad , Siddik Abu Bakkar
Published: March 2023

In this age of global warming, academics and policymakers are increasingly concerned about firm environmental sustainability success. Therefore, this study aims to investigate whether Environmental, Social and Governance (ESG) performance impacts sustainability performance through the mediating effect of firm innovation. To this end, Structural Equation Modeling (SEM) was deployed to analyze data collected from the employees of manufacturing industries in an emerging economy like Bangladesh. The results revealed that ESG performance significantly enhances the innovation and sustainability performance of manufacturing industries, indicating that the higher the ESG performance of a firm, the greater its innovation and sustainability performance. Furthermore, the results confirmed that firm innovation performance fully mediates the relationship between ESG initiatives and sustainability performance. The findings of this study provide policymakers and industry authorities with valuable insight into the role of ESG and innovation performance in improving sustainability performance. Specifically, the study sheds knowledge on how firm ESG initiatives and innovation performance impact sustainability performance in the manufacturing sector of an emerging economy like Bangladesh.
Epidemiology Aspects of Magnetic Resonance Imaging in the Context of COVID-19 Pandemic
Authors: Maksimova Aleksandra S. , Shelkovnikova Tatiana A. , Ryumshina Nadezhda I. , Mochula Olga V. , Vaizov Valery Kh. , Trubacheva Irina A. , Novikova Oksana M. , Naiman Azamat B. , Kuznetsova Alina D. , Chesalov Nazary P. , Ussov Wladimir Yu. , Nina D. Anfinogenova And
Published: March 2023

The aim of study was to investigate epidemiology aspects of magnetic resonance imaging (MRI) during COVID-19 pandemic. The study comprised depersonalized residents of Tomsk and Tomsk Region (n = 1714). Invitations to take online survey were sent to 50,000 residents by target SMS with response rate of 1.2% (n = 727, Cohort 1). Cohort 2 comprised retrospective patients (n = 987) who underwent contrast-enhanced cardiac MRI (CMR) in 2019-2022. Referrals, clinical characteristics, diagnosis, gender, age, past COVID-19, MRI study protocols, and MRI data were analyzed. 29% of respondents in cohort 1 received MRI examination within past two years; 26% of respondents considered MRI the most informative imaging modality for detecting COVID-19 pneumonia; 12% of respondents reported MRI unavailable. Proportion of CMR among MRI studies increased during COVID-19 pandemic, and maximum incidence of cardiac diseases detected by MRI was in 2021. Incidence of myocardial fibrosis increased from ~67% in 2019 to ~84% in 2022. The rate of outpatient MRI studies significantly increased in 2020, but returned to pre-pandemic level in 2021. COVID-19 pandemic increased the need for MRI and CMR. Patients with history of COVID-19 had persistent and newly occurring symptoms of myocardial damage suggesting chronic cardiac involvement requiring continuous follow-up.
Observation of a 10-day Therapeutic Fast of An Obese Female
Authors: Purvis Alison , Ruddock Alan , Hembrough Dave , Ranchordas Mayur , Claxton David
Published: March 2023

This case study features an observation of an obese female (body mass index ≥ 30 kgm-2) who undertook a 10-day water and electrolyte fast with the aim of reducing body fat and improving physiological markers of health. A comprehensive range of physiological measures (body mass, girths, blood pressure, body fluid balance, urine osmolarity, and resting oxygen consumption), mood indicators, metabolic markers (blood ketones, blood glucose, breath ketones, urine ketones), and measurement of intake and expenditure (fluid intake, food intake, nutritional macros, steps taken, and estimated movement caloric expenditure) were measured before, during and after the fasting period to determine the effectiveness of undertaking extended therapeutic fasting for improving markers of health and weight loss. Body mass on the first day of the fast was 95.1 kg and on the tenth and final day of the fast it was 88.1 kg representing a loss of 7 kg at a rate of 0.7 kg·day1. Mean body mass in the 15 days after the fast was 88.3 ± 0.4 kg. This case study is novel in reporting key physiological and psychological markers over a 10-day fast, and in pre- and post-fast periods. A 10-day fast appears to be a safe and effective method of weight loss, mood is positively affected by fasting and weight loss from fasting can be sustained providing care is taken in the approach to post-fasting nutrition.
Improving the Accuracy of Customer Service Seq2Seq Chatbots Through Dataset Pruning
Authors: Hosameldeen Osama , Abousamra Rasha , Al-Aqrabi Hussain , Embarak Ossama , Durrani Usman
Published: March 2023

Chatbots are extensively needed in customer services to handle customer inquiries, such as tracking orders or providing information about products and services. One of the most reliable implementations of chatbots is using the common architectures of LSTM networks named Seq2Seq networks. The networks are using an encoder and a decoder. Seq2Seq chatbot is a type of chat system that is professional enough to pass the Turing test. The Turing test is a way of deciding the accuracy of the machine by examining its response, it should appear like a human response. In this research, we will introduce a novel architecture that can pass the Turing test. The seq2seq Accuracy is improved by making incremental training to the chatbot. The new proposal provides higher accuracy and high similarity to human chat responses.
Effect of Microencapsulated Basil Extract on Cream Cheese Quality and Stability
Authors: Popescu Liliana , Cojocari Daniela , Lung Ildiko , Kacso Irina , Ciorîţă Alexandra , Ghendov-Mosanu Aliona , Balan Greta , Pintea Adela , Sturza Rodica
Published: March 2023

Cream cheese presents a favorable environment for the growth of pathogenic and spoilage microorganisms. The antimicrobial and antioxidant effects of plant extracts are well known, but their use is limited because they affect the physicochemical and sensory characteristics of products. Encapsulation presents an option to limit or prevent these changes. The paper presents the composition of individual polyphenols (HPLC–DAD-ESI-MS) from basil extracts (BE) with significant antioxidant activity (644.75±21.37 mM Trolox/g DW) and inhibitory effect against strains of Staphylococcus aureus, Geobacillus stearothermophilus, Bacillus cereus, Candida albicans, Enterococcus faecalis, Escherichia coli, and Salmonella Abony. The basil extract was encapsulated in sodium alginate (Alg) using the drop technique. The encapsulation efficiency of microencapsulated basil extract (MBE) was 78.59±0.01%. SEM and FTIR analyzes demonstrated the existence of weak physical interactions between the components. In the optimal concentration range of 0.6-0.9% MBE determined the inhibition of the post-fermentation process and the improvement of the degree of water retention. This led to the improvement of the textural parameters of the cream cheese, contributing to the extension of the shelf life of the product by 7 days. The influence of storage period and MBE concentration on texture parameters, pH and sensory analysis (overall acceptability) were evaluated by mutual information analysis.
New Challenges in Children’s Illustration in Portugal
Authors: Rodrigues Carina
Published: March 2023

The aim of this paper is to reflect on some of the current trends in Portuguese illustration for children, focusing on an intertextual reading of the picturebooks written and illustrated by Manuela Bacelar, as a precursor in the creation of this kind of book in Portugal. Based on the discursive interdependence of text and illustrations, stylistic and technical-narrative procedures are observed, in necessary articulation with the visual/graphic and material/peritextual aspects. The potential of these aspects is highlighted in the composition of the work and in the construction of its multiple semiosis. The interdependence of text and illustrations poses specific requirements in the process of reading and has an impact on the formation of competent and autonomous readers. Relying on modern literary currents to be found in a postmodernist aesthetic, this paper examines the corpus, from both a technical and compositional point of view, seeking to investigate some of the traits and formal rhetorical, stylistic and thematic resources that distinguish the work of this awarded artist.
Enseñanza de español L2 para migrantes haitianos: Metodología participativa
Authors: Markovits Jennifer , Abarca Cristian
Published: March 2023

El siguiente artículo describe una experiencia de metodología curricular participativa para la realización de material didáctico para la enseñanza de español como L2 para la comunidad haitiana en Chile. Para lograr esta finalidad se diseñó y luego se aplicó un cuestionario sobre percepciones de conocimiento lingüístico (CPL) para medir las creencias de 42 migrantes adultos haitianos de la región de Valparaíso con respecto a su conocimiento del español. De manera paralela, se aplicó el Test de nombramiento multilingüe MINT (Gollan et.al, 2012) para medir cuantitativamente el conocimiento léxico de la lengua meta.  Los resultados de ambos instrumentos revelaron las necesidades subjetivas y objetivas con respecto del español de la comunidad que se utilizaron para llegar al resultado esperado que fue la construcción de un manual de español como L2 con un enfoque comunicativo e intercultural.
Una PROPUESTA INNOVADORA PARA LA ENSEÑANZA DEL INGLÉS COMUNICACIONAL EN UNA UNIVERSIDAD ARGENTINA. SUGERENCIAS DE MEJORAS A PARTIR DE LA OPINIÓN DE ESTUDIANTES
Authors: Aguirre Céliz Cecilia , Rivarola Marcela , Domínguez María Belén
Published: March 2023

En este trabajo se comenta sobre una experiencia inédita que se llevó a cabo en la Facultad de Ingeniería y Ciencias Agropecuarias de la Universidad Nacional de San Luis, Argentina. Esta experiencia consistió en el montaje e implementación de “Inglés Comunicacional” como asignatura electiva para los estudiantes de ingeniería de esta alta casa de estudios. Luego de dos años de intensa investigación para fundamentar la necesidad del inglés comunicativo en las carreras de ingeniería, y de dos años más de tareas del diseño de la asignatura en cuestión, esta se implementó como prueba piloto en el segundo semestre del año 2021. El objetivo de este trabajo es retomar las opiniones de los estudiantes respecto a la metodología de aula invertida, el uso de las tecnologías para el dictado de la asignatura, el cumplimiento de sus expectativas iniciales y sus sugerencias para mejorar esta propuesta pedagógica. Luego de haber analizado las respuestas de los estudiantes, se proponen una serie de mejoras para la próxima implementación en el segundo semestre del año 2022.

Palabras clave: universidad, enseñanza, lengua inglesa, innovación pedagógica
Flipped Classroom en la enseñanza superior: ¿Influye la Rama de Formación del Alumnado en su percepción y preferencias?
Authors: Salazar Ordóñez Melania , Rodríguez-Entrena Macario
Published: March 2023

El objetivo es profundizar en el conocimiento de la percepción y preferencias del alumnado de grado hacia la técnica de flipped classroom como alternativa a las clases tradicionales magistrales, pero en un entorno on-line. Además, se examinan las diferencias entre dos ramas de formación: ciencias sociales e ingeniería; manteniendo la edad y género como variables control. Así, la muestra de 133 alumnos de la Universidad de Córdoba se analizó mediante técnicas estadísticas, mostrando que con esta metodología se percibió una mayor flexibilidad y capacidad de auto organización. También aparecieron diferencias entre ramas de formación.
LA CREACIÓN DE EXÁMENES A CARGO DEL ALUMNADO
Authors: ROLDAN FIDALGO CRISTINA , LABRADOR LOPEZ DE AZCONA GERMÁN
Published: March 2023

Los planes de los grados universitarios a menudo comprenden asignaturas que, debido a su gran carga teórica, requieren de una buena planificación de su estudio por parte de los alumnos. Sin embargo, en muchos casos, la falta de oportunidades para autoobservar el propio aprendizaje con anterioridad al examen final, unida a la escasez de destrezas de autorregulación, de las que carecen muchos de nuestros estudiantes, impiden que esto sea posible. El presente artículo recoge los resultados de una experiencia llevada a cabo en el curso 2019/2020 con una muestra de 31 estudiantes de tercer curso de la asignatura de «Historia y análisis de la música del Clasicismo» del Grado en Historia y Ciencias de la Música y Tecnología Musical de la Universidad Autónoma de Madrid. La experiencia está encaminada a desarrollar, mediante el trabajo en grupo, habilidades de auto- y co-rregulación. Consistió en el diseño, realización y corrección en grupo de un examen de los contenidos impartidos hasta el momento. Para evaluar su efectividad, se recurrió a una metodología cuantitativa (a través de los datos numéricos extraídos de cuestionarios a los alumnos y las calificaciones obtenidas) y una cualitativa (mediante la observación directa del profesorado). Los resultados de los cuestionarios a los alumnos mostraron que la mayoría valoran muy positivamente este tipo de actividades grupales que les ayudan a tomar conciencia de sus conocimientos y a planificar mejor su proceso de aprendizaje.
SIMULACIÓN CLÍNICA EN EL GRADO EN FISIOTERAPIA
Authors: Martín-Nogueras Ana M , Llamas-Ramos Rocío , Bermejo-Gil Beatriz M
Published: March 2023

La simulación clínica es una estrategia para integrar en procesos enseñanza-aprendizaje previos a la práctica clínica. Se caracteriza por facilitar el aprendizaje en entornos seguros, presentar efectos positivos frente a métodos convencionales y un buen nivel de aceptación entre estudiantes. El objetivo de este trabajo es describir una actividad de simulación clínica virtual en la asignatura Fisioterapia en reumatología y afecciones del raquis. Consistió en la presentación de un caso real sobre razonamiento clínico en dolor de hombro durante una sesión (3 horas) en grupos (10-12 estudiantes) para promover el razonamiento clínico; correlacionar datos clínicos e interpretar pruebas complementarias; y destacar la comunicación como alianza terapéutica. Se estructuró en tres partes: presentación (prebriefing), desarrollo (briefing) y debate reflexivo (debriefing). La satisfacción de los estudiantes fue registrada mediante una encuesta con escalas Likert. Se recogieron 32 encuestas. Los estudiantes mostraron alto grado de acuerdo respecto a metodología, objetivos y dinámica de la actividad. Casi todos recomendarían la simulación clínica y todos volverían a participar. Destacaron el proceso de reflexión y la aplicabilidad profesional. La simulación clínica virtual en dicha asignatura es viable, satisfactoria para profesores y estudiantes y mejora la capacidad reflexiva, las actitudes y la adquisición de competencias del título.
Aplicación de la gamificación en asignaturas de Ingeniería Industrial
Authors: Zorzano Martínez Antonio Moisés , Zorzano Martínez Jose María
Published: March 2023

La gamificación es una herramienta potente para conseguir un aprendizaje activo y dinámico. La formación universitaria es un campo adecuado para incluir herramientas y estrategias que mejoren la calidad de la docencia desde aspectos más lúdicos. La experiencia que aquí se presenta, pretende mostrar su utilidad en tres asignaturas de la rama de conocimiento de Ingeniería Industrial. Se han utilizado tres herramientas informáticas como son Blackboard, Quizizz y Socrative, que permiten la construcción de cuestionarios que deben contestar los alumnos, incorporando, las dos últimas, aspectos de gamificación. La inmediatez en la detección de posibles faltas en la formación previa de los alumnos, ha sido clave para la detección temprana. La clase se ha vuelto más dinámica y más cercana a las necesidades del alumno. La construcción de algunos cuestionarios en lengua inglesa, ha conseguido mejorar las destrezas técnicas en dicha lengua, y acercarle más a su realidad profesional. Los test han recogido aspectos teóricos y análisis de casos prácticos, evitando la simple memorización, y sirviendo como fuente de información, tanto para los alumnos como para el profesor. Dentro de la estrategia de digitalización, también se han colocado cuestionarios accesibles para el alumno, para su formación fuera del horario presencial.
CUENTO DE LUZ NEGRA REALIZADO POR EL ALUMNADO DEL CICLO FORMATIVO DE EDUCACIÓN INFANTIL IMPLEMENTANDO METODOLOGÍAS ACTIVAS
Authors: Lumbreras Gil Mª Pilar
Published: March 2023

Rodari (1973) defendía la necesidad de que la imaginación tuviera un puesto en el proceso educativo, la confianza en la creatividad infantil y el valor liberador que puede tener la palabra. El alumnado del Ciclo Formativo de Educación Infantil (futuras educadoras y educadores infantiles que trabajarán en la etapa de 0 a 6 años) desarrollan cuentos con la técnica de luz negra que se representarán para los niños y las niñas de Educación Infantil. Es un proyecto combinado con la metodología de aprendizaje-servicio en el que tienen que implicarse en todos los pasos: escribir la historia teniendo en cuenta la técnica de luz negra y al público receptor, construir los personajes, organizar los ensayos y representar los cuentos. Es un proceso muy motivador por su carácter práctico y por el feedback de los niños y las niñas.  El teatro negro atrapa la atención con su magia e ingenio.
Quotient on some Generalizations of topological group
Authors: Kumar A. Muneesh , Gnanachandra P. , Priya B. Ananda
Published: March 2023

In this paper, we define some generalizations of topological group namely -topological group, -topological group and -topological group with illustrative examples. Also, we define grill topological group with respect to a grill. Later, we deliberate the quotient on generalizations of topological group in particular -topological group. Moreover, we model a robotic system which relays on the quotient of -topological group.
Evaluation of ATBS Polymers for Mangala Polymer Flood
Authors: Shankar Vivek , Zagitov Robert , Shekhar Sunit , Gupta Abhishek Kumar , Kumar M. Suresh , Kumar Ritesh , Veerbhadrappa Santhosh , Nakutnyy Petro
Published: March 2023

Mangala field has been under polymer flood since 2015. The polymer flood has been more successful in accelerating recovery compared to waterflood. As the flood matured, field performance indicated that part of the injected polymer was degrading in the reservoir. Laboratory studies and polymer samples collected from the reservoir suggest that the most likely reason for the degradation is increased hydrolysis due to thermal aging. This degradation compels higher dosing of polymer to make up for the lost viscosity and increases operating costs. Polymer precipitation in the reservoir may also lead to loss of reservoir permeability.

Literature surveys and preliminary laboratory studies showed that polymers with acrylamide-tertiary-butyl-sulfonic acid monomer units (referred to as ATBS polymers) could be a suitable option for Mangala. To evaluate the hypothesis, the team did a series of laboratory and coreflood studies. The studies include accelerated thermal ageing, rheology, dynamic adsorption, injectivity, waterflood with fresh and degraded samples, and compatibility studies with topside chemicals. Two hydrolyzed polyacrylamide (HPAM) polymers with different degrees of hydrolysis (DOH) and two ATBS polymers were evaluated. The selected ATBS polymer was then tested for compatibility with surface topside chemicals.

The studies show that the classic 20 to 25% DOH HPAM suffers viscosity degradation and possible precipitation in Mangala reservoir conditions. ATBS polymers and a lower DOH HPAM provide superior results to the incumbent HPAM with an acrylamide (AM) (86)-ATBS (14) copolymer providing the best results. ATBS polymers were especially resistant to cloudpoint lowering and provide some superiority in shear degradation. The ATBS monomer was resistant to hydrolysis during the period of testing. Contrary to the published literature, ATBS polymers showed higher adsorption and their propagation through cores required a higher pressure drop. ATBS polymer seemed to plug a low-permeability section of the core stack. All polymers reach their peak viscosity at 30 to 40% hydrolysis and decline sharply after 40%, but viscosity and cloudpoints measured during accelerated aging are possibly conservative. A large-scale pilot of ATBS injection in Mangala is under way to validate the laboratory test results.

ATBS polymer can be a suitable polymer for some layers of Mangala with a high residence time and permeability. The choice is driven by the economics of the incremental cost of ATBS for the benefits it offers. In some sands with shorter interwell spacing, a lower DOH HPAM may be a more cost-effective solution.

The study results in this paper provide insights to operators to understand the reservoir performance of existing polymer floods and plan for future polymer floods.
Research on elliptic curve crypto system with curves Bitcoin- SECP256k1,NIST256p,NIST521p and LLL
Authors: Ulla Mohammed Mujeer , Sakkari Deepak S
Published: March 2023

Very recent attacks like ladder leak demonstrated feasibility to recover private key with side channel attacks using just one bit of secret nonce. ECDSA nonce bias can be exploited in many ways.Some attacks on ECDSA involve complicated Fourier analysis and lattice mathematics. In this paper will enable cryptographers to identify efficient ways in which ECDSA can be cracked on curves NIST256p,SECP256k1,NIST521p and weak nonce, kind of attacks that can crack ECDSA and how to protect yourself. Initially we begin with a ECDSA signature to sign a message using private key and validate the generated signature using the shared public key. Then we use a nonce or a random value to randomize the generated signature.Every time we sign, a new verifiable random nonce value is created and way in which the intruder can discover the private key if the signer leaks any one of the nonce value. Then we use Lenstra–Lenstra–Lovasz (LLL) method as a black box, we will try to attack signatures generated from bad nonce or bad random number generator(RAG) on NIST256p,SECP256k1 curves. The analysis is performed by considering all the three curves for implementation of Elliptic Curve Digital Signature Algorithm (ECDSA).The comparative analysis for each of the selected curves in terms of computational time is done with leak of nonce and with Lenstra–Lenstra–Lovasz method to crack ECDSA.The average computational costs to break ECDSA with curves NIST256p,NIST521p and SECP256k1 are 0.016,0.34,0.46 respectively which is almost to zero depicts the strength of algorithm. The average computational costs to break
Association between gut microbiota and erectile dysfunction: a two-sample Mendelian randomization study
Authors: Chen Wenkang , Zhang Yijing , Zou Hede , Li Bolin , Liu Hanfei , Wang Ruikun , Zhao Jiayou
Published: March 2023

Objective: Several observational studies have recently been reported to suggest an association between gut microbiotaand erectile dysfunction（ED）. However, the causal relationship between gut microbiota and erectile dysfunction remains unclear. Therefore, the aim of this study was to clearly elaborate the causal relationship between gut microbes and erectile dysfunction.
Methods: A two-sample Mendelian randomization study was conducted with summary statistics of the gut microbiota from the largest genome-wide association study Meta-analysis conductedby the MiBiogen Consortium (n=13, 266). ED patients’ information was collected from the European ancestry (6175 cases vs 217,630 controls). The causal relation between gut microbiota and ED was investigated using inverse variance weighting (IVW), MR-Egger, weighted median, weighted model, and MR-PRESSO. Reverse Mendelian randomization（MR） analysis was performed on bacteria found to be causally involved in erectile dysfunction in forward Mendelian random analysis. Cochran's Q statistic was employed to quantify the heterogeneity of instrumental variables.
Results: IVW estimate indicates that Lachnospiraceae(OR=1.26, 95%CI=1.06 to 1.5, P=0.008), Oscillibacter(OR=1.2, 95%CI=1.04 to 1.39, P=0.016), Tyzzerella3(OR=1.14, 95%CI=1.02 to 1.27, P=0.024) and Erysipelotrichaceae UCG003(OR=2.05, 95%CI=1.54 to 2.56, P=0.006) were risk factor for ED. Sensitivity analyses were performed to verify the causal relations obtained by MR. The results of Cochran’s IVW Q test showed no significant heterogeneity of these IVs. Based on the results of the inverse MR analysis, no obvious causal effect of ED on intestinal flora was found. There was no significant heterogeneity found for instrumental variables or horizontal pleiotropy.
Conclusions: This two-sample MR study found that gut microbes including family Lachnospiraceae、genus Erysipelotrichaceae UCG003、genus Oscillibacter、genus Tyzzerella3 were causally associated with ED. Further studies are needed to clarify the mechanism of gut microbes’s pathogenesis role in ED.
Effect of Probiotic Lactic Acid Bacteria and Citric Acid on Performance, Serum Biochemistry, Organ Weight and Carcass Characteristics of Broiler Chicks
Authors: Heidary Arezoo , de Neeff Diane Valganon , Shahbazi Hosseinreza , Seidavi Alireza , Oliveira Carlos Augusto Fernandes
Published: March 2023

In this work, the effects of the addition of probiotics and citric acid to drinking water on performance, serum biochemistry, relative organ weight and carcass characteristics of broiler chicks were evaluated. Two hundred forty-one-day-old chicks (female Ross 308) were divided into 6 groups and submitted to 6 different treatments for 42 days, with 4 replicates in each treatment, with 10 birds in each. Drinking water was supplemented with a commercial probiotic mixture (Lactofeed®, Takgene Co, Iran) at 0 (control), 0.1 g/L (day 1 to 21) and 0.05 g/L (day 22 to 42), and citric acid at concentrations of 0 (control), 0.2 and 0.4% (day 1 to 42). Compared with controls, no significant changes (P > 0.05) were found in the performance, serum biochemistry parameters and relative organ weights of broiler chicks receiving water supplemented with probiotics or citric acid after 42 days of experiment. However, a significant (P < 0.05) interaction effect was observed between probiotic and citric acid supplementation on feed intake within the first 21 days. Moreover, chicks receiving water supplemented with probiotic and 0.2% of citric acid had highest (P < 0.05) body weight at 42 days of age, as well total carcass weight. Results indicate that water supplementation with Lactofeed® and 0.2% of citric acid are promising strategies to enhance growth performance of broilers.
The role of nano-chelated iron on anatomical and biochemical characteristics and concentration of mineral nutrients in lettuce (Lactuca sativa L.) under cadmium toxicity
Authors: Heydari Roghayeh , kolahi maryam , Kazemi Elham Mohajel , Nosratia Houshang , Movafeghia Ali
Published: March 2023

The authors have requested that this preprint be removed from Research Square.
Lipids Productivity of Cyanobacterium Anabaena vaginicola in an Internally Illuminated Photobioreactor Using LED Bar Lights
Authors: Goldoost Hootan , Vahabzadeh Farzaneh , Fallah Narges
Published: March 2023

Concerns over environmental issues exists and desire to decrease of their extent, have directed efforts toward green energy production. Growth behavior of Anabaena vaginicola, was determined in a photobioreator which illuminated internally (IIPBR) using LED bar light. Excessive heat generated in the IIPBR was taken care of by applying a novel air-cooled system. Further note in experimentation was to find favorable cultivation conditions in the IIPBR for A. vaginicola growth and its lipids production capacity. The following results are expressed: 80 µmol photons m-2 s-1 as light intensity, 0.5 g/l as NaNO3, and 120 ml/min as CO2 amount being expressed in terms of aeration rate. The findings were interpreted in terms of a two-component system where the genes encoded to the relevant proteins are present in cyanobacteria and their expressiveness depends on environmental stress. By determining growth rate constant as 0.11 d-1, the productivity in terms of biomass formation was calculated as 202.6 mg L−1 d−1. While rate of lipids production by the test cyanobacterium is 15.65 mg L−1 d−1. Based on total energy used for IIPBR performance, biomass productivity per unit power input equals to 0.74 g W-1 d-1 and this is in favorable position compared with other photobioreactors.