bluuebunny/crossref_metadata_2025 huggingface dataset:
Advancement of IoT System QoS by Integrating Cloud, Fog, Roof, and Dew Computing Assisted by SDN
Authors: Ahammad Ishtiaq , Khan Md. Ashikur Rahman , Salehin Zayed-Us
Published: September 2021

In the internet of things (IoT) domain, there has currently been a growing interest, leading to the idea of the IoT ecosystem. But the standards, technology, and structures of the conventional IoT framework do not provide the necessary QoS for today's massive data. Thus, for today's IoT ecosystem, a framework called SD-DRFC (software-defined dew, roof, fog, and cloud computing) is suggested in this article. The framework delivers facilities from the closest possible position of end-user gadgets and thus increases the QoS in an IoT system. Clear description about the role and features of each tier is also presented. The path to a multi-tier computational architecture assisted by SDN can be realized from the given detailed literature review. Using the iFogSim simulator, a use case based on the architecture provided is then given and evaluated. This article considers four QoS parameters (latency, network use, cost, and energy consumption). When compared the findings of the simulation, the proposed framework execution performs much better than cloud-only execution.
Identification of Tomato Leaf Diseases Using Deep Convolutional Neural Networks
Authors: Singh Ganesh Bahadur , Rani Rajneesh , Sharma Nonita , Kakkar Deepti
Published: September 2021

Crop disease is a major issue now days; as it drastically reduces food production rate. Tomato is cultivated in major part of the world. The most common diseases that affect tomato crops are bacterial spot, early blight, septoria leaf spot, late blight, leaf mold, target spot, etc. In order to increase the production rate of tomato, early identification of diseases is highly required. The existing work contains very less accurate system for identification of tomato crop diseases. The goal of our work is to propose cost effective and efficient deep learning model inspired from Alexnet for identification of tomato crop diseases. To validate the performance of proposed model, experiments have also been done on standard pretrained models. The plantVillage dataset is used for the same, which contains 18,160 images of diseased and non-diseased tomato leaf. The disease identification accuracy of proposed model is compared with standard pretrained models and found that proposed model gave more promising results for tomato crop diseases identification.
Research on Multi-Cooperative Combine-Integrated Scheduling Based on Improved NSGA-II Algorithm
Authors: Ma Li , Wang Yidi , Ma Meiqiong , Bai Jiyun
Published: September 2021

To promote the integration and optimal allocation of agricultural machinery resources to achieve the purpose of reducing cost and increasing efficiency, the scheduling problem of agricultural machinery in agricultural machinery cooperatives based on the trans-regional operation mode was studied in this paper, Considering multiple agricultural machinery points, multiple types, operation time windows, space distance and other factors, the multi-objective programming mathematical model with the lowest total cost of deployment, the highest service punctuality and the least use of harvester was established by applying path optimization and theory of job shop scheduling. NSGA-II was used to solve the model in this paper. According to the model features, this paper designed chromosome coding and the process of emergence, crossover and variation of initial population. Combined with the actual situation of rice harvesting in Wuchang City, the above scheduling theory was applied. The experimental results showed the validity and feasibility of the scheduling model and the algorithm.
Computational Analysis of Vertebral Body for Compression Fracture Using Texture and Shape Features
Authors: Arpitha Adela , Rangarajan Lalitha
Published: September 2021

The primary goal in this paper is to automate radiological measurements of Vertebral Body (VB) in Magnetic Resonance Imaging (MRI) spinal scans. It starts by preprocessing the images, then detect and localize the VB regions, next segment and label VBs and finally classify each VB into three cases as being normal or fractured in case 1, benign or malignant in case 2 and normal, benign or malignant in case 3. The task is accomplished by extracting and combining distinct features of VB such as boundary, gray levels, shape and texture features using various Machine Learning techniques. The class balance deficit dataset towards normal and fractures is balanced by data augmentation which provides an enriched dataset for the learning system to perform precise differentiation between classes. On a clinical spine dataset, the method is tested and validated on 535 VBs for segmentation attaining an average accuracy 94.59% and on 315 VBs for classification with an average accuracy of 96.07% for case 1, 93.23% for case 2 and 92.3% for case 3.
P2DF
Authors: Abulaish Muhammad , Haldar Nur Al Hasan , Jahiruddin Jahiruddin
Published: September 2021

The extensive use of digital devices by individuals generates a significant amount of private data which creates challenges for investigation agencies to protect suspects' privacy. Existing digital forensics models illustrate the steps and actions to be followed during an investigation, but most of them are inadequate to investigate a crime with all the processes in an integrated manner and do not protect suspect's privacy. In this paper, we propose the development of a privacy-preserving digital forensics (P2DF) framework, which facilitates investigation through maintaining confidentiality of the suspects through various privacy standards and policies. It includes an access control mechanism which allows only authorized investigators to access private data and identified digital evidences. It is also equipped with a digital evidence preservation mechanism which could be helpful for the court of law to ensure the authenticity, confidentiality, and reliability of the evidences, and to verify whether privacy of the suspect was preserved during the investigation process.
Dynamic Contact Network Simulation Model Based on Multi-Agent Systems
Authors: Younsi Fatima-Zohra , Hamdadou Djamila
Published: September 2021

Epidemic spread poses a new challenge to the public health community. Given its very rapid spread, public health decision makers are mobilized to fight and stop it by setting disposal several tools. This ongoing research aims to design and develop a new system based on Multi-Agent System, Suscpetible-Infected-Removed (SIR) model and Geographic Information System (GIS) for public health officials. The proposed system aimed to find out the real and responsible factors for the epidemic spread and explaining its emergence in human population. Moreover, it allows to monitor the disease spread in space and time and provides rapid early warning alert of disease outbreaks. In this paper, a multi-agent epidemic spread simulation system is proposed, discussed and implemented. Simulation result shows that the proposed multi-agent disease spread system performs well in reflecting the evolution of dynamic disease spread system's behavior
Investigation of Cloud ERP Adoption in the Healthcare Industry Through Technology-Organization-Environment (TOE) Framework
Authors: Damali Uzay , Kocakulah Mehmet , Ozkul Ahmet Semih
Published: September 2021

There is an accelerated migration from on-premise ERP to Cloud ERP systems in many industries, but this transition is relatively slow in the healthcare industry. To address this concern, we developed a research model based on Technology-Organization-Environment (TOE) framework, and explored it in the healthcare industry through semi-structured interviews with IT managers and finance managers. We found noticeable differences between small-sized and large-sized healthcare organizations, as well as the perceptions of IT managers and finance managers in Cloud ERP adoption decisions. We discussed these findings, and proposed future research questions on Cloud ERP adoption in the healthcare industry.
Flow Experience and Consumer Willingness to Pay in Online Mass Customization Processes
Authors: Canarslan Nur Özer , Bariş Gülfidan
Published: September 2021

This research aims to identify the effects of perceived product value and flow experience during product design on willingness to pay (WTP) and purchase probability in online mass customization. The participants were asked to design shoes to their taste in a custom shoe website. After the design experience, the participants were asked to complete the questionnaire. The analyses suggest that flow experience has a direct effect on consumers’ WTP and an indirect effect on purchase probability through the mediating role of perceived value of mass customized products. Furthermore, perceived value of a mass customized product has a significant effect on purchase probability and no effect on WTP found in the analyses.
Online Retail Store Community Engagement and Its Impact on Purchase Intentions in the Context of Online Reviews
Authors: Peters Cara , Bodkin Charles D.
Published: September 2021

Consumers want to engage with the retail store community in the shopping context. This study examines how consumers’ perceptions of source credibility and perceived usefulness of online reviews impact an intention to engage with the online retail store community and purchase intentions. The study also identifies differences when reviews are posted by customers versus store employees. Results show that the proposed relationships within the structural model are significant and reviews posted by store employees are seen as more credible, whereas reviews posted by other customers are perceived to be more useful. Theoretical and managerial implications are discussed.
Skepticism Toward Online Advertising
Authors: Jamil Raja Ahmed , Qayyum Abdul , Lodhi Mohammad Saeed
Published: September 2021

Despite the enormous spending on digital advertising, consumers are skeptical toward online advertising (STA). We integrated advertising value and stimulus-organism- response (SOR) frameworks to develop a model of STA's causes and consequences. Product knowledge and perceived ethics of online seller (ETH) were proposed as moderators. For study 1, moderated-moderated mediation technique was applied on the time-lagged data of 411 consumers. For study 2, a between-subject experiment (n = 179) compared the effects of skepticism across video and picture ads. The results indicate that ETH and product knowledge moderated the relationships between stimulus-organism and organism-response states, respectively. Moreover, consumers showed favorable attitudes toward video ads. This study made novel contributions to research on STA by filling multiple voids (a) integration of advertising value and SOR (b) infotainment and puffery as predictors (c) product knowledge and perceived ethics of online seller as moderators (d), and comparison across advertisement type (video vs. picture).
Assessment of Contributions of the Methodology for the Construction of a Catalog of Information Technology Services Aimed at Public Entities
Authors: Macías Cristian Mera , Aguilar-Alonso Igor
Published: September 2021

Several field studies have shown low levels of implementation of this type of catalog in organizations in various countries around the world, which is accentuated in public organizations. To address this problem, the main objective of this research is to demonstrate the contribution of a methodology for the construction of a catalog of information technology services in the management of technology services aimed at public entities, which is tested and assessed in terms of its levels of contribution to the information management of technology services. The methodology used in this research was tested and evaluated by 46 IT professionals working in public organizations in Ecuador, verifying the contribution levels of the proposal in four aspects: 1) the identification of information technology services, 2) the classification of information technology services, 3) feedback from the service catalog as a transversal component, and 4) the automation of all the processes described. Favourable results were obtained regarding the proposed methodology.
Analyzing Linguistic Features for Answer Re-Ranking of Why-Questions
Authors: Breja Manvi , Jain Sanjay Kumar
Published: September 2021

Why-type non-factoid questions are ambiguous and involve variations in their answers. A challenge in returning one appropriate answer to user requires the process of appropriate answer extraction, re-ranking and validation. There are cases where the need is to understand the meaning and context of a document rather than finding exact words involved in question. The paper addresses this problem by exploring lexico-syntactic, semantic and contextual query-dependent features, some of which are based on deep learning frameworks to depict the probability of answer candidate being relevant for the question. The features are weighted by the score returned by ensemble ExtraTreesClassifier according to features importance. An answer re-ranker model is implemented that finds the highest ranked answer comprising largest value of feature similarity between question and answer candidate and thus achieving 0.64 Mean Reciprocal Rank (MRR). Further, answer is validated by matching the answer type of answer candidate and returns the highest ranked answer candidate with matched answer type to a user.
Towards Intelligent Road Traffic Management Over a Weighted Large Graphs Hybrid Meta-Heuristic-Based Approach
Authors: Hayi Mohamed Yassine , Chouiref Zahira , Moumen Hamouma
Published: September 2021

This paper introduces a new approach of hybrid meta-heuristics based optimization technique for decreasing the computation time of the shortest paths algorithm. The problem of finding the shortest paths is a combinatorial optimization problem which has been well studied from various fields. The number of vehicles on the road has increased incredibly. Therefore, traffic management has become a major problem. We study the traffic network in large scale routing problems as a field of application. The meta-heuristic we propose introduces new hybrid genetic algorithm named IOGA. The problem consists of finding the k optimal paths that minimizes a metric such as distance, time, etc. Testing was performed using an exact algorithm and meta-heuristic algorithm on random generated network instances. Experimental analyses demonstrate the efficiency of our proposed approach in terms of runtime and quality of the result. Empirical results obtained show that the proposed algorithm outperforms some of the existing technique in term of the optimal solution in every generation.
Simulation of COVID-19 Outbreaks via Graphical User Interface (GUI)
Authors: Mohd Jamil Norazaliza , Rosli Norhayati , Muhammad Noryanti
Published: September 2021

Background

This research aimed to model the outbreak of COVID-19 in Malaysia and develop a GUI-based model.

Design and methods

The model is an improvement of the susceptible, infected, recovery, and death (SIRD) compartmental model. The epidemiological parameters of the infection, recovery, and death rates were formulated as time dependent piecewise functions by incorporating the control measures of lockdown, social distancing, quarantine, lockdown lifting time and the percentage of people who abide by the rules. An improved SIRD model was solved via the 4th order Runge-Kutta (RK4) method and 14 unknown parameters were estimated by using Nelder- Mead algorithm and pattern-search technique. The publicly available data for COVID-19 outbreak in Malaysia was used to validate the performance of the model. The GUI-based SIRD model was developed to simulate the number of active cases of COVID-19 over time by considering movement control order (MCO) lifted date and the percentage of people who abide the rules.

Results

The simulator showed that the improved SIRD model adequately fitted Malaysia COVID-19 data indicated by low values of root mean square error (RMSE) as compared to other existing models. The higher the percentage of people following the SOP, the lower the spread of disease. Another key point is that the later the lifting time after the lockdown, the lower the spread of disease.

Conclusions

These findings highlight the importance of the society to obey the intervention measures in preventing the spread of the COVID-19 disease.
Prevalence and Distribution of Selected Developmental Dental Anomalies in Taif, Saudi Population
Authors: Aljuaid Theeb Saed Saad , Manjunatha Bhari Sharanesha , Amith Holenarasipur Vasantakumar , Alshehri Rayan Ali , Alharthi Faisal Bandar , Kariri Abdulrahman Mousa
Published: September 2021

Background

Developmental dental anomalies are seen as abnormalities in tooth size, shape, position, and structure due to multiple reasons during various stages of tooth development. These anomalies can create disturbances in dental arch lengths and occlusions. Hence, it is very important to treat, recognise and perform proper treatment. The purpose of this study was to find out the prevalence and distribution of selected developmental anomalies in shape, size and position of teeth in the Saudi population of Taif Region.

Design and methods

The study was based on the clinical examination of 2481 adults who are Saudi nationals came for dental treatment from September 2019 to February 2020, at Taif University Dental Hospital, Saudi Arabia. These patients were examined clinically for developmental dental anomalies affecting shape, size and position.

Results

We found that a total of 512 individuals (20.63%) had developmental anomalies and out of which 386 persons (15.56%) had at least one developmental dental anomaly. The frequency and distribution of anomalies of shape and size, number and position were 46.8%, 26.9% and 42.9% respectively. In the present study, 15.56% individuals exhibited at least one anomaly, 8.54% subjects had more than one anomaly and 79.36%.did not any developmental anomaly. On comparison, statistically significant results were seen between different groups of anomalies.

Conclusions

The present study had varying results for the prevalence rate of selected dental anomalies. This variation in results might be due racial differences or discrepancy in sample size or/and diagnostic or inclusion criteria. Treatment of developmental anomalies necessitates a multidisciplinary approach and mostly may comprise of orthodontic correction or prosthetic replacement.
Industrial Traumatism and Occupational Morbidity in Mining Industry of Kazakhstan
Authors: Nurbek Yerdessov , Asset Izdenov , Timur Beisenov , Roza Suleimenova , Bakhtiyar Serik , Ermek Sraubaev
Published: September 2021

This article presents data in the dynamics on industrial injuries and occupational morbidity in the mining industry of the Republic of Kazakhstan. The aim of this study is to analyze occupational injuries and occupational diseases between 2008 and 2018. An analysis of the number of victims of accidents, including those who died from accidents at work during the period, shows indicators of occupational injuries in the gender aspect, the outcome of accidents by degrees of severity and the material consequences of accidents. During the analyzed period, the overall level of occupational injuries and occupational morbidity in the country remains high. The material consequences of accidents, in addition to social damage, bring great material losses to the state.
THE İşlemsel Liderlik ve Bilgi Yönetimi Arasındaki İlişki
Authors: Maltaş Elif , GÜMÜŞ Muhammet , ORHAN Sibel , KIZILKAYA Emine
Published: September 2021

Liderler, aynı tutuma veya aynı bakış açısına sahip değildir. Siyasi, ticari veya diğer alanlarda liderler tarafından sergilenebilecek birçok farklı liderlik türünün var olduğu görülmektedir. Liderlik stili, liderin yön sağlama, planları uygulama ve insanları motive etme tarzıdır. İşlemsel liderlik tarzına baktığımızda, takipçileri öncelikle kendi çıkarlarına hitap ederek motive etmeyi ve yönlendirmeyi içermektedir. Ayrıca bilgi yönetimi, organizasyonel bilgiyi yakalama, geliştirme, paylaşma ve etkin bir şekilde kullanma sürecidir. Bilgiyi en iyi şekilde kullanarak organizasyonel hedeflere ulaşmak için çok disiplinli bir yaklaşımı ifade etmektedir. Liderlik stilinin, organizasyonun bilgi yönetiminin süreç ve adımlarını karşılama eğilimi ve biçimi üzerinde doğrudan etkili olduğu bilinmektedir. Bu çalışma, bir kamu hastanesinde çalışan sağlık personellerinin işlemsel liderlik özelliklerinin bilgi yönetimi üzerindeki ilişkisini incelemeyi amaçlamaktadır. Değişkenleri analiz etmek ve hipotezleri araştırmak için tanımlayıcı istatistik tekniği kullanılmıştır.
Bioethanol Production Through Syngas Fermentation by a Novel Immobilized Bioreactor Using Clostridium Ragsdalei
Authors: Sertkaya Simge , Keskin Gundogdu Tugba , Kennes Christian , Azbar Nuri
Published: September 2021

Global energy demand has been escalating creating ever increasing pressure on climate crisis caused by fossil-based fuels. Humankind is now desperately in need of alternative and sustainable energy sources. Therefore, biofuels provide promising solution.

Amongst the various biofuels, bioethanol from syngas, which is a mixture of, mostly, CO, CO2, N2, H2, and CH4 gases has been drawing increasing attention recently. Regarding this, the conversion of syngas to bioethanol, an alternative biofuel to fossil fuels, is considered a promising approach to reduce the negative effects of global warming by reducing greenhouse gas emissions.

In this study, a novel immobilized cell bioreactor, where Clostridium ragsdalei was grown, was designed and used to achieve an efficient production of ethanol regarding volumetric production. For this purpose, a 300 mL immobilized reactor filled with ceramic balls as immobilization material was set and operated at 30oC throughout the study where CO gas as the main substrate was fed at rate of 6 ml/min continuously. Results showed ethanol and acetic acid concentrations reaching up to 1.4 g/L and 0.2 g/L, respectively, after 600h with a volumetric production rate of 0,0023g ethanol/L/h. We believe, the ceramic ball was used for bioethanol production for syngas for the first time.
Avrupa Topluluğu Ekonomik Faaliyetlerin İstatistiki Sınıflandırılması Kullanılarak Dengesiz Veri Setlerinde Sınıflandırma Problemine Bakış
Authors: Bektas Yasin , BEKTAŞ Jale
Published: September 2021

Dengesiz ve çok sınıflı veri setlerinde klasik sınıflandırıcıların kullanılması her zaman bir sorun oluşturmuştur. Bu çalışmada Avrupa Topluluğunda Ekonomik Faaliyetlerin İstatistiki Sınıflaması (NACE) kodlarının tanımları üzerinde çok bilinen sınıflandırıcılar ile bir metin madenciliği uygulaması yapılmıştır. Çalışmada öncelikle orjinal verinin dengesiz yapısı üzerinde uygulama yapılmış, daha sonra sınıf bazında ağırlıklandırma yöntemiyle dengeli hale getirilerek sonuç verisi üzerinde tekrar test edilerek performans ölçümü gerçekleştirilmiştir. Testlerde Karar Ağaçları, Naiv Bayes, Destek Vektör Makineleri, Çapsal Tabanlı Fonksiyonlar ve Rastgele Orman algoritmaları gibi yaygın kullanılan sınıflandırıcılar kullanılmıştır.  Çalışma bize Karar Ağaçlarının veri dengelenmesi neticesinde F-skor değerinin %17.43’ den %92’ ye çıkarak en iyi performansı verdiğini göstermiştir.
Modelo logístico de gestión de mantenimiento como estrategia de mejora a la disponibilidad. Caso de estudio: Unidad de Mantenimiento del GADMEC
Authors: Solórzano-Calero Emilio Manuel , Espinosa-Delgado Luis Felipe
Published: September 2021

El modelo de gestión de mantenimiento tiene como objetivo mejorar los índices de disponibilidad operativa aplicando estrategias de monitoreo, control y evaluación con retroalimentación directa en la unidad que proporciona el mantenimiento a los Volquetes Sinotruk del Gobierno Autónomo Descentralizado del Cantón El Carmen (GADMEC), tomando como fuente, el histórico de fallos del sistema y adoptando las particularidades del proceso de mejora continua. La metodología utilizada permite el tratamiento de las variables mediante la ejecución de 5 etapas: definición estrategias del mantenimiento en función del modelo de gestión de mantenimiento basado en el ciclo de Deming que implica 4 pasos: planear, hacer, verificar y actuar (PHVA) propuesto en la norma ISO 9001:2015; la implementación de las estrategias de mantenimiento como herramientas de gestión, el análisis de criticidad de los activos sujetos de estudio, la ejecución de metodología de análisis confiabilidad, mantenibilidad y disponibilidad (CMD) y finalmente, la selección de estrategias de mejoramiento para el manejo recursos. El análisis CMD logró determinar el comportamiento de los indicadores técnicos de gestión de mantenimiento en un periodo determinado de tiempo; los datos obtenidos fueron procesos de forma sistemática y la información resultante permitió medir la incidencia de las estrategias aplicadas, evaluando su comportamiento en función de sus indicadores, estableciendo el crecimiento real de la productividad con la implementación del modelo teórico de gestión de mantenimiento, cuyo enfoque logístico logró la integración entre las unidad de mantenimiento y los activos del Gobierno Autónomo Descentralizado del Cantón El Carmen.

Palabras clave: Disponibilidad operativa, estratégicas, gestión de mantenimiento, confiabilidad, mantenibilidad, disponibilidad.
Landscapes of sandy areas along a rainfall gradient (90-450 mm, average annual rainfall) in the south-eastern Mediterranean area, Israel
Authors: Aaron Yair
Published: September 2021

Dryland areas are regarded as highly sensitive to climatic changes. A positive relationship between average annual rainfall, and environmental factors (water availability, species diversity, etc.), is often assumed for areas with an average annual rainfall of 100-300 mm. However, the global climatological models fail to address an important issue. The above assumption disregards the fact that a climate change in some dry-land areas is not limited to climatic factors. It is often accompanied by a pronounced variability in surface properties, such as the deposition of loess in a wet climatic phase, and of sand during a dry climatic phase. Needless to say, the spatial variability of the new surface properties may have variable effects on water resources and related environmental variables. In addition, the climatic models, based on average annual rainfall, disregard the rainfall characteristics at the rain-shower level, which greatly influence the degree to which rainwater will percolate, or will be transformed into runoff, thereby significantly affecting the spatial redistribution of water resources. In other words, a climate change in dryland areas would be expected to have differential hydrological effects in a sandy area, a rocky area, or in a loess covered area. Differential spatial hydrological effects would be also expected within each of the areas listed above. The present manuscript deals with the complex relationships between average annual rainfall, and environmental variables in sandy areas, at three research sites, along a rainfall gradient of 90-450 mm, in the south eastern Mediterranean area, Israel. Data obtained clearly show that average annual rainfall is not a good indicator of water resources, and ecosystem structure, in each of the sites; and the controlling factors vary from one site to another.
Concepciones sobre enseñanza-aprendizaje del profesorado y su práctica educativa en clases de ciencias naturales
Authors: Nistal María Teresa Fernández , Argüelles Guadalupe de la Paz Ross , Ibarra Santa Magdalena Mercado , Ávila Eneida Ochoa , Hernández Claudia García
Published: September 2021

En este artículo se presentan los resultados de una investigación cuyos objetivos fueron identificar las concepciones sobre la enseñanza y el aprendizaje de 62 profesores de Sonora (México), que imparten clases de ciencias naturales en secundaria, y estudiar la relación de estas concepciones con su práctica educativa en el aula. Para la obtención de los datos se realizaron observaciones de las clases y se aplicó una entrevista semiestructurada a los profesores. Un análisis cualitativo a las respuestas del profesorado en la entrevista indicó que la concepción sobre la enseñanza más frecuente fue la de transición entre una perspectiva tradicional y una constructivista, seguida de la tradicional. La concepción constructivista fue la menos frecuente. Por otro lado, el análisis de la práctica educativa de los profesores en el aula indicó un predominio del modelo de enseñanza tradicional de transmisión-recepción, aunque aproximadamente la mitad de los profesores incorporaron en sus prácticas algunas estrategias de enseñanza constructivistas. El análisis de la relación entre las concepciones de los profesores y sus prácticas educativas mostró algunas incoherencias. En general, los profesores presentaron una enseñanza más tradicional en su comportamiento en clase que lo manifestado en la entrevista sobre cómo enseñan. Estos resultados presentan implicaciones en el diseño de cursos de formación y actualización docente.

 

This article presents the results of an investigation whose objectives were to identify the conceptions about teaching and learning of 62 teachers of Sonora (Mexico), who teach natural sciences in secondary school, and to study the relationship of these conceptions with their educational practice in the classroom. To obtain the data, classroom observations were made and a semi-structured interview was applied to the teachers. A qualitative analysis of the teachers' responses in the interview indicated that the most frequent conception of teaching was the transition between a traditional and a constructivist perspective, followed by the traditional one. The constructivist conception was the least frequent. On the other hand, the analysis of the teachers' educational practice in the classroom indicated a predominance of the traditional transmission-reception teaching model, although approximately half of the teachers incorporated some constructivist teaching strategies in their practices. The analysis of the relationship between the teachers' conceptions and their educational practices showed some inconsistencies. In general, teachers presented a more traditional teaching in their classroom behavior than what was manifested in the interview about how they teach. These results have implications for the design of teacher training and updating courses.
“investigación en enseñanza de la carrera educación básica” Guayaquil, ecuador, 18 y 19 de agosto del 2017
Authors: Chantong Sandra Patricia , Pazmiño Maira Janeth Monar , Parreño Gloria Verónica
Published: September 2021

Conocedoras de la relevancia que tiene la educación infantil en la vida de los seres humanos,   etapa en la que  se  desarrolla  su inteligencia, personalidad, comportamiento social y otras potencialidades, consideramos que es importante  hacer cambios en nuestra labor educativa y aplicar  métodos activos de enseñanza- aprendizaje,   promoviendo  la participación de los estudiantes en  proyectos de aula, trabajo colaborativo y a partir de la experiencia crear su propio conocimiento con la guía de los docentes.  Nuestra propuesta es  la visita   al mercado  del barrio  con la finalidad de que conozcan su comunidad  y de que se sientan orgullosos de su cultura y costumbres; destacar la diferencia entre la comida nutritiva y alimentos chatarra; reconocer la labor que realizan los vendedores en el mercado;  resaltar valores como la honestidad y el  respeto;  conocer las reglas del aseo para la conservación de los alimentos y cuidado del medio ambiente. Aplicar esta estrategia activa   permite  utilizar de manera apropiada recursos de nuestro entorno, crear el sentido de pertenencia, mejorar el desempeño escolar, la participación creativa de los estudiantes en cada uno de los ambientes de aprendizajes y aumentar su capacidad lingüística.

Knowing the relevance of the education of children in the life of human beings, a stage in which their intelligence, personality, social behavior and other potential develops, we consider that it is important to make changes in our educational work and to apply active teaching methods - learning, promoting the participation of students in classroom projects, collaborative work and based on the experience, to create their own knowledge with the guidance of teachers. Our proposal is the visit to the market of the neighborhood in order that they know their community and that they are proud of their culture and customs; to recognize the difference between nutritious food and junk foods; Recognize the work of marketers in the market; to exalt values ​​such as honesty and respect; to know the rules of cleanliness for food preservation and care of the environment. Applying this active strategy allows us to appropriately use resources from our environment, create a sense of belonging, improve school performance in students, creative participation of students in every learning environment and increase their language ability.
Administración pública y el presupuesto participativo en los gobiernos municipales de la Provincia de Santo Domingo-Ecuador
Authors: Toala Félix Sixto Pilay , Peñate Mikel Ugando , Carvajal María Jahaira Álava
Published: September 2021

La investigación tiene como objetivo determinar si los gobiernos municipales de la provincia de Santo Domingo de los Tsáchilas, Ecuador, como parte esencial de la administración pública elaboran el presupuesto anual de manera participativa, como lo determina la Constitución de la República, el Código Orgánico de Organización Territorial, Autonomía y Descentralización, Código Orgánico de planificación y Finanzas Públicas y el código orgánico de Participación Ciudadana. El desarrollo de la metodología se establece a través de un enfoque mixto, con una población de estudio en los cantones de Santo Domingo y La Concordia, se aplicaron 385 encuestas con un cuestionario estructurado y también semiestructurado a hombres y mujeres entre 18 y 69 años, se realizaron entrevistas a líderes de opinión tanto locales como nacionales; la técnica de observación, fue empleada en visitas a las zonas vulnerables, además se realizó una experimentación social. Dentro de los resultados, se evidencian las causas para el deficiente acceso a las necesidades prioritarias y las razones para que los recursos económicos que ingresan a la entidad municipal no son distribuidos de manera adecuada. Existe un marco legal propicio para que los gobiernos locales elaboren su presupuesto de forma participativa, de acuerdo a los datos obtenidos en la encuesta, existe carencia de un modelo de gestión simplificado.

 

The objective of the investigation is to determine whether the municipal governments of the province of Santo Domingo de los Tsáchilas, Ecuador, as an essential part of the public administration, prepare the annual budget in a participatory manner, as determined by the Constitution of the Republic, the Organic Code of Territorial Organization, Autonomy and Decentralization, Organic Code of Planning and Public Finance and the Organic Code of Citizen Participation. The development of the methodology is established through a mixed approach, with a study population in the cantons of Santo Domingo and La Concordia, 385 surveys were applied with a structured and semi-structured questionnaire to men and women between 18 and 69 years old. interviews were conducted with local and national opinion leaders; The observation technique was used in visits to vulnerable areas, and a social experimentation was also carried out. Among the results, the causes for the deficient access to the priority needs and the reasons for the economic resources that enter the municipal entity are not distributed adequately. There is a favorable legal framework for local governments to prepare their budget in a participatory way, according to the data obtained in the survey, there is a lack of a simplified management model.
Assessment of antimicrobial use in private and government hospitals, a comparative study in central kerala, using who indicators
Authors: Roy Chinnu , George Shaji , Issac Aleena , Ponnappan Arya , Paul Dhanya
Published: September 2021

Background: Irrational use of antimicrobial can cause various unwanted and untoward events. It may diminish the quality of patient care, increase the cost of therapy, and involvement in various side effects. Thus, the appropriateness of antimicrobial use in hospitals plays a pivotal role in patient safety.
Objective: To analyze and assess the prescribing pattern of antimicrobials in private and government hospitals as per the WHO indicators.
Methodology: A prospective comparative observational study was carried out for 6 months, with the patient diagnosed with an infectious disease admitted to the medical ward of both the hospitals during the study period. The data obtained from the study sites were Compared and analyzed using WHO indicators described in WHO’s “How to Investigate Antimicrobial use in Hospitals: Selected Indicators, Feb 2012”.
Results: The study involved 216 patients and the average number of antimicrobials prescribed was found to be 1.73 in a private hospital and 2.07 in the government hospital, average cost of antimicrobials was found to be 86.48 INR in private and 31.04 INR in the government hospital, average duration of antimicrobial treatment was 4.8 in private and 5.2 in the government hospital, and the percentage of antimicrobials prescribed in generic was 33.33% in private and 87.83% in the government hospital. Considering the spectrum of antibiotics, both private (94.7%) and government (88.8%) used broad-spectrum antimicrobials. In both hospitals, cephalosporins were the most frequently prescribed class of antimicrobials. Comparing the dosage of antimicrobials given, injection usage is at the highest in government (59.5%) as well as in the private hospital (68.4%).
Conclusion: This study indicates that the average cost of antimicrobials was more in a private hospital than that in a government hospital and other indicators such as the number of antimicrobials per hospitalization, duration of antimicrobial treatment, and the percentage of generic antimicrobials prescribed were all found to be more in a government hospital. In both private and government hospitals broad-spectrum antimicrobials were widely used, with cephalosporin as the most prescribed class.
DYSPNEA IN AN ADULT WITH ATRIAL SEPTAL DEFECT AND SJÔGREN’S SYNDROME: WHO’S TO BLAME?
Authors:   Department of Cardiology, A/National Cardiovascular League, Ibn Sina University Hospital Center, Mohammed V University, Rabat, Morocco., MEHSSANI Z.
Published: September 2021

ASD and more frequently the ostium secundum type is a relatively common adult congenital heart disease. Sjogren’s syndrome on the other side is the second most frequent auto immune disease, Involving the lungs in 9–20% of patients. We report the case of a 69 years old woman, complaining of a long-standing dyspnea and was diagnosed with Sjogren’s syndrom. Her CT scan and pulmonary function tests were normal. That lead to investigate for pulmonary hypertension as a potential cause for her dyspnea. A TTE was performed and estimated her systolic pulmonary pressure at 30 mmhg, and showed an OS ASD with left to right shunt. Right heart catheterization calculated her mPaP at 20 mmhg. She is scheduled for percutaneous closure of her OS ASD. There are only few cases reporting an association between ASD and Sjogren’s syndrome in polyendocrine syndrome, and even fewer without polyendocrine syndrome. Farook and Al. discussed a case of a women presenting OS ASD with SS complicated with PAH, suggesting an association between the two pathologies by inflammatory process, and Inoue et Al. presented a case of a women with polyartritis rheumatoid and Sjogren’s syndrome complicated with PAH, inducing a right to left shunt through a patent foramen oval. In our case, the ostium secundum type ASD with left to right shunt with mild pulmonary hypertension is probably the reason for her dyspnea, as there was no interstitial lung disease with normal CT and PFT.Unfortunately, there is no sufficient data suggesting an eventual association between ASD and Sjogren’s syndrome without polyendocrine syndrome. The learning point is the importance of screening for congenital heart disease in adult with unexplained dyspnea.
INDICATION OF INTERVENTIONAL PROCEDURE FOR ISOLATED SYNCOPAL PULMONARY STENOSIS IN ADOLESCENTS: CASE REPORTS AND REVUE OF LITERATURE.
Authors:   Department of Cardiology, A/National Cardiovascular League, Ibn Sina University Hospital Center, Mohammed V University, Rabat, Morocco., MEHSSANI Z.
Published: September 2021

Pulmonic stenosis refers to a dynamic or fixed anatomic obstruction to flow from the right ventricle to the pulmonary arterial vasculature. Although most commonly diagnosed and treated in the pediatric population, some patients with severe, isolated PS may be diagnosed for the first time as adults, and represents approximately 10% of all congenital heart disease. We report the cases of three adolescents, who presented to the ER after having several episodes of syncopes during exercise. The TTE showed a dome-shaped pulmonary valve, with a peak pulmonary velocity between 5,3 and 6,8 m/s, with a right ventricular hypertrophy and dilatation. We proceed to the balloon valvuloplasty and used balloon dilatation catheter until the waisting disappeared. An echocardiography was performed the day after the procedure, showing a drop peak pulmonary velocity and decreased right ventricular dilatation. In older children and adults, percutaneous pulmonary valvuloplasty is the first line treatment for valvar pulmonary stenosis irrespective of symptoms. Catheter-based balloon valvotomy is recommended for patients with non-dysplastic valvular PS and with peripheral PS. Surgery is recommended for patients with sub-infundibular or infundibular PS and hypoplastic pulmonary annulus, with dysplastic pulmonary valves, and for patients with associated lesions which need a surgical approach, such as severe pulmonary regurgitation or severe tricuspide regurgitation. Simple balloon dilatation can provide a definitive solution and avoid the need for surgery.
Teachers’ perceptions of incorporation of corpus-based approach in English language teaching classrooms in Karachi, Pakistan
Authors: Jamal Javeria , Shafqat Asmara , Afzal Ehtsham
Published: September 2021

The objective of the study is to understand language teachers’ perceptions regarding incorporating a corpus-based approach, i.e., corpus-based teaching methodology in English Language Teaching (ELT) classroom contexts. The design of the study is qualitative. The sample is taken from 19 English language teachers who are currently enrolled as students of Master of Applied Linguistics at NED University, Karachi, Pakistan. The instrument of the study is an open-ended questionnaire and also a focus groups based on semi-structured interviews. A thematic analysis of the interviews is conducted, as a result of which different themes emerged that conform to the benefits of incorporating corpus-based materials and activities in ELT classrooms. The findings show that use of a corpus-based teaching methodology in ELT classrooms is accepted as a new strategy for teaching different aspects and skills of English language such as vocabulary, grammar, reading, and writing. The pedagogical implications are found to be significant for curriculum designers, ELT teachers, and administrators at educational institutes where they want to enhance their students' interest and motivation levels. Material designers, corpus-based tools researchers, and teachers are suggested to collaborate for designing effective corpus-based materials for teaching as it increases the reliability of the teaching material.
Complicaciones maternas que interfieren con la lactancia
Authors: Cabrera Lozada Carlos
Published: September 2021

La alimentación del ser humano debe iniciarse con la lactancia materna, innumerables son los beneficios que se describen en su práctica desde lo nutricional hasta lo psicoafectivo, sin embargo, hay algunas pocas condiciones maternas y neonatales que complican su práctica. El presente reporte desarrolla aquellas complicaciones maternas que pueden restringir la lactancia materna pudiendo ser temporales o definitivas. Enmarca las complicaciones inmediatas por la falta de información como aquellas patologías que la contraindican, culminando con las sustancias que pueden no ser beneficiosas para el neonato.
Lactancia humana en emergencia humanitaria compleja
Authors: Urbina-Medina Huníades
Published: September 2021

Una crisis humanitaria es una situación de emergenciaen que se ven amenazadas la vida, salud, seguridad o bienestar de una comunidad o grupo de personas en un país o región. Esta crisis puede deberse a motivos, ambientales o sanitarios, y, se caracterizan por que el país que las sufre no cuenta con una capacidad de respuesta suficiente para hacerle frente, por lo que requiere la recepción de ayuda humanitaria por parte de otros países donantes. Venezuela atraviesa una emergencia humanitaria compleja al menos desde el año 2015, de acuerdo con la Organización de las Naciones Unidas para la Alimentación y Agricultura (FAO).
Historia clínica de lactancia humana
Authors: Badell Madrid Elvia , Hernández Rivero Carlos
Published: September 2021

El pediatra, brinda asistencia a la lactancia, analiza los componentes clave de esta, para identificar en cuáles, una intervención puede ser necesaria. Se involucran en el bienestar de la madre-el niño y la lactancia: gineco-obstetras, enfermeras, consejeras, dulas, consultoras expertas en asesorías de lactancia, odontólogos, etc. todos dedicados a orientar y garantizar el éxito en la lactancia.
Relactación
Authors: Badell Madrid Elvia
Published: September 2021

La relactación o inducción a lactancia es una práctica excepcional, posible para cualquier madre sustituta, adoptiva, homosexual femenino o masculino o trans quien desee alimentar a su hijo con leche humana; si está adecuadamente motivada. Tiene ventajas nutricionales para el niño, también mejora la relación de ambos. La estimulación por succión directa, frecuente del pecho por el niño, día y noche, es clave para lograrlo; muchos niños están dispuestos a mamar de una vez, al sentir el pecho, otros hay que ayudarlos a iniciar la succión.
Colecho, sueño y lactancia humana
Authors: Hernández Rivero Carlos
Published: September 2021

El colecho es la práctica en la que el bebé duerme en la misma superficie que los padres. Esta es una práctica común en todo el mundo. A veces es una elección a conciencia y en otras ocasiones puede suceder cuando los padres están cansados. Los padres actualmente reciben mensajes contradictorios con respeto compartir la cama: “Debería dormir con su bebé” y que “es peligroso dormir juntos”. Aunque las madres que amamantan y comparten la cama se despiertan con frecuencia para alimentar al bebé, estas están despiertos por períodos más cortos y se vuelven a dormir más rápidamente. Compartir la cama es una estrategia utilizada por las madres que amamantan para reducir la interrupción del sueño y el desgaste físico que esto produce.
La familia, el padre y la lactancia materna
Authors: Santiago P Rafael J
Published: September 2021

Los beneficios de la lactancia materna en la salud del lactante han sido ampliamente demostrados, así como en la salud de la madre y la familia. Los estudios reportaron la influencia de la familia y el padre en el proceso de la lactancia, siendo esta en su mayoría positiva, sin embargo, dependerán de la edad de la madre, el tipo de familia, los conocimientos y actitudes del padre. es necesario incentivar la investigación sobre la participación del padre y de incrementar la formación del padre para mejorar su influencia en el éxito de la lactancia materna.