bluuebunny/crossref_metadata_2025 huggingface dataset:
DESIGN AND IMPLEMENTATION OF MULTI-TEMPORAL IMAGE SERVICE SYSTEM ON NATIONAL PLATFORM FOR GEOSPATIAL INFORMATION SERVICES IN CHINA
Authors: Wang C. , Zhang H.
Published: July 2021

Abstract. With the development of National Platform for Geospatial Information Services in China, it accumulated massive image data with multi-source, multi-temporal and multi-scale. Displaying and taking full use of these historical data can be meaningful to the users. This paper provided design and implementation of multi-temporal image service system based on national platform, which meets the requirements of different users. In this paper, the design of the overall system architecture was introduced, and different system levels stated respectively. The Key technologies presented in the third part, and the implementation displayed parts of functions of this system. Applications, that is typical, recommended in the following part. Also, future efforts and discussions were put forward in the end, which could be guided following work. The research also looks forward to the development of national platform, and the direction of services that should be provided by multi-temporal image service is already under development.
GEOVISUALIZATION OF AERIAL PHOTOGRAMMETRIC FLIGHTS FOR DATA QUALITY ASSESSMENT
Authors: Buyukdemircioglu M. , Kocaman S.
Published: July 2021

Abstract. Spatiotemporal data visualization plays an important role for simulating the changes over time and representing dynamic geospatial phenomena. In aerial photogrammetry, image acquisition is the most important stage for obtaining high-quality products; and can be affected by various factors such as the weather and illumination conditions, imaging geometry, etc. 3D simulation of the aircraft trajectories at the planning stage helps the flight planners to make better decisions especially for unmanned aerial vehicle (UAV) missions in areas with mixed land use land cover, such as rugged topography, water bodies, restricted areas, etc.; since images with poor texture or large differences in scale may deteriorate the quality of the final products. In this study, a geovisualization approach for photogrammetric flights carried out with UAVs or airplane platforms was implemented using CesiumJS Virtual Globe. The measured flight trajectory parameters, such as image perspective centre coordinates and the camera rotations, the time of acquisition, and the interior orientation parameters (IOPs) of the camera were used for spatiotemporal visualization. In the developed approach, the EOPs and IOPs of the images were utilized to reconstruct the flight paths, the camera position, the footprints of the acquired images on the ground, and the rotation of the aircraft; and to present them on a 3D web environment precisely. The approach was demonstrated by using two case studies, one from a UAV flight mission and the other one from an airplane carried out with a large-format aerial camera.
AN EFFICIENT ND-POINT DATA STRUCTURE FOR QUERYING FLOOD RISK
Authors: Liu H. , Van Oosterom P. , Mao B. , Meijers M. , Thompson R.
Published: July 2021

Abstract. Governments use flood maps for city planning and disaster management to protect people and assets. Flood risk mapping projects carried out for these purposes generate a huge amount of modelling results. Previously, data submitted are highly condensed products such as typical flood inundation maps and tables for loss analysis. Original modelling results recording critical flood evolution processes are overlooked due to cumbersome management and analysis. This certainly has drawbacks: the ‘static’ maps impart few details about the flood; also, the data fails to address new requirements. This significantly confines the use of flood maps. Recent development of point cloud databases provides an opportunity to manage the whole set of modelling results. The databases can efficiently support all kinds of flood risk queries at finer scales. Using a case study from China, this paper demonstrates how a novel nD-PointCloud structure, HistSFC, improves flood risk querying. The result indicates that compared with conventional database solutions, HistSFC holds superior performance and better scalability. Besides, the specific optimizations made on HistSFC can facilitate the process further. All these indicate a promising solution for the next generation of flood maps.
UP4DREAM CAPACITY BUILDING PROJECT: UAS BASED MAPPING IN DEVELOPING COUNTRIES
Authors: Calantropio A. , Chiabrando F. , Comino J. , Lingua A. M. , Maschio P. F. , Juskauskas T.
Published: July 2021

Abstract. UP4DREAM (UAV Photogrammetry for Developing Resilience and Educational Activities in Malawi) is a cooperative project cofounded by ISPRS between the Polytechnic University of Turin and the United Nations Children Fund (UNICEF) Malawi, with the support of two local Universities (Lilongwe University of Agriculture and Natural Resources, and Mzuzu University), and Agisoft LLC (for the use of their photogrammetry and computer vision software suite). Malawi is a flood-prone landlocked country constantly facing natural and health challenges, which prevent the country's sustainable socio-economic development. Frequent naturals shocks leave vulnerable communities food insecure. Moreover, Malawi suffers from high rates of HIV, as well as it has endemic malaria. The UP4DREAM project focuses on one of the drone project's critical priorities in Malawi (Imagery). It aims to start a capacity-building initiative in line with other mapping missions in developing countries, focusing on the realization and management of large-scale cartography (using GIS - Geographic Information Systems) and on the generation of 3D products based on the UAV-acquired data. The principal aim of UP4DREAM is to ensure that local institutions, universities, researchers, service companies, and manufacturers operating in the humanitarian drone corridor, established by UNICEF in 2017, will have the proper knowledge and understanding of the photogrammetry and spatial information best practices, to perform large-scale aerial data acquisition, processing, share and manage in the most efficient, cost-effective and scientifically rigorous way.
RESEARCH ORIENTED REMOTE SENSING IMAGE PROCESSING SOFTWARE DESIGN IN PRACTICAL COURSES FOR SENIOR UNDERGRADUATES
Authors: Zhang H. , Zhao D. , Xie F. , Jiang Z.
Published: July 2021

Abstract. Remote sensing is not only the teaching content of the majors of surveying and mapping, but also the teaching content of many other engineering majors in China, such as Detection, Guidance and Control Technology (DGCT), Aerocraft Control and Information Engineering (ACIE), etc. In this paper, we put forward the special teaching task of remote sensing image processing software design to the practical courses, named Specialty Course Design and Specialty Comprehensive Experiments, for senior engineering undergraduate students in their last academic year. In this research oriented task, students are required to design, code and implement a remote sensing image processing software under the specified software programming conditions, and carry out detailed software testing, so as to meet several application functions with research objectives. According to the collation and summary of five rounds of teaching practice of such research oriented remote sensing image processing software design tasks in practical courses, we find that it can not only cultivate the ability of students to comprehensively use the knowledge they have learned, but also enable them to better analyze the actual application needs and acquire the technology and ability closer to the actual work needs.
Design optimization of vehicle asynchronous motors based on fractional harmonic response analysis
Authors: Lei Ao , Song Chuan-Xue , Lei Yu-Long , Fu Yao
Published: July 2021

Abstract. To make vehicles more reliable and efficient, many researchers have tried to improve the rotor performance. Although certain achievements have been made, the previous finite element model did not reflect the historical process of the motor rotor well, and the rigidity and mass in rotor optimization are less discussed together. This paper firstly introduces fractional order into a finite element model to conduct the harmonic response analysis. Then, we propose an optimal design framework of a rotor. In the framework, objective functions of rigidity and mass are defined, and the relationship between high rigidity and the first-order frequency is discussed. In order to find the optimal values, an accelerated optimization method based on response surface (ARSO) is proposed to find the suitable design parameters of rigidity and mass. Because the higher rigidity can be transformed into the first-order natural frequency by objective function, this paper analyzes the first-order frequency and mass of a motor rotor in the experiment. The results proved that not only is the fractional model effective, but also the ARSO can optimize the rotor structure. The first-order natural frequency of asynchronous motor rotor is increased by 11.2 %, and the mass is reduced by 13.8 %, which can realize high stiffness and light mass of asynchronous motor rotors.
Implementasi Metode C.45 dalam Menganalisa Tingkat Kecemasan Mahasiswa Menyusun Tugas Akhir
Authors: Desyanti Desyanti
Published: July 2021

Tugas Akhir adalah mata kuliah wajib yang harus diambil oleh mahasiwa - mahasiswi sebagai salah satu syarat  untuk memperoleh gelar Ahli Madya ( Amd) di AMIK Mitra Gama. Permasalahan yang terjadi adalah mahasiswa sering kali mengalami kesulitan – kesulitan dalam menyelesaikan tugas akhir tersebut, antara lain pemilihan judul yang relatif lama karena membutuhkan banyak pertimbangan dalam penentuan judul, pemilihan metode penelitian yang sesuai dengan judul yang akan diajukan serta proses mempertahankan gagasan di depan dosen pembimbing yang tidak mudah sering kali dirasakan sebagai beban yang berat. Akibat kesulitan – kesulitan tersebut berkembang menjadi sikap yang negatif yang menimbulkan suatu kecemasan dan hilangnya motivasi untuk menyelesaikan Tugas Akhir. Oleh karena itu, diperlukan sebuah analisa yang dibutuhkan oleh kampus untuk dapat membantu mahasiswa dalam menyelesaikan tugas akhirnya sesuai dengan lama masa studinya. Oleh karena itu untuk mengatasi masalah tersebut diterapkan data mining dengan metode C4.5 untuk mengetahui tingkat kecemasan mahasiswa dalam menyusun tugas akhir .
El teatro como herramienta pedagógica para la difusión de la interculturalidad: Estudio etnográfico con alumnos de educación secundaria en Otavalo, Ecuador
Authors: Mantilla Jorge , Mantilla Paola , Echeverría Andrés
Published: July 2021

Durante los últimos años, múltiples instituciones de educación secundaria en Ecuador se han esforzado por promover prácticas interculturales, sin embargo, en muchos casos estos esfuerzos no han logrado transferir la teoría a la práctica. El presente artículo muestra cómo un enfoque basado en la utilización del teatro y la etnografía puede ser una herramienta válida para promover la interculturalidad dentro de estos espacios. El estudio fue llevado a cabo en una unidad educativa ubicada de Otavalo, zona caracterizada por una alta diversidad cultural. La investigación se desarrolló en dos fases. En una primera etapa se diagnosticó etnográficamente la situación de la interculturalidad entre los estudiantes. En una segunda fase, se desarrolló una obra teatral orientada a promover la convivencia intercultural. Los resultados muestran que la aplicación del teatro fortalece conocimientos teóricos y genera espacios para que los estudiantes los lleven la interculturalidad a la práctica.
Fases del proceso terapéutico con una niña que ha sufrido abuso sexual intrafamiliar
Authors: Rodríguez Mesa Rosa Maria
Published: July 2021

Los niños y niñas que han sufrido abuso sexual intrafamiliar presentan una gran dificultad a la hora de superar las consecuencias del mismo, En estos casos la familia es parte de la situación de abuso por lo que estos menores deben superar por un lado la pérdida del entorno familiar al mismo tiempo que las secuelas del abuso. Es prioritario que reconozcamos este dolor antes de comenzar el trabajo, con el objetivo de comenzar la sanación. Este estudio de caso presenta un modelo de intervención que elaboré para facilitar el trabajo con una niña tutelada de 9 años que llega al arteterapia derivada desde el área de psicología clínica de la Seguridad Social. En el artículo que presento enumero las fases del proceso de intervención que diseñé recopilando distintos procesos  recogidos en la literatura para intervenciones en casos de trauma y las cuales adapté a las características especiales del caso y de la propia menor. Este modelo me ha servido de base para trabajar en casos posteriores dentro de este ámbito pues me ha permitido trabajar las particularidades de los procesos de trauma debidos al abuso sexual infantil en general y al abuso sexual intrafamiliar en particular.
Exploradoras y Exploradores silenciosos. Experiencia de Arteterapia con personas solicitantes de asilo y protección internacional
Authors: Rodríguez González Viviana
Published: July 2021

El presente trabajo tiene como objetivo exponer la experiencia de la aplicación de la Arteterapia con personas migrantes y solicitantes de asilo y protección internacional en sus diferentes modalidades de intervención. Especialmente nos centraremos en la experiencia grupal desarrollada con metodología, principalmente, no directiva en formato de “taller de arte” con grupos reducidos. 

Las intervenciones se encuadran dentro de una realidad frecuente en la profesión de arteterapia en España, en la cual la figura de la arteterapeuta se comparte con otros roles dentro de las instituciones. Situación que fuerza a pensar, replantear el encuadre y su efecto sobre el proceso creativo y sobre las dinámicas grupales e institucionales. Asimismo, se pretende dar valor a la creación de las conceptualizaciones basadas en la experiencia práctica y dentro del marco sociocultural específico. 

Los grupos de Arteterapia partieron de un enfoque en trauma, que se fue transformando e integrando a un modelo adaptativo del Duelo Migratorio que incluyese en su conceptualización los efectos de haber vivido situaciones de violencia o vulneración de derechos. 

El arte realizado en el espacio de Arteterapia, con esta población, ha dado la oportunidad de explorar las múltiples pérdidas asociadas a los procesos migratorios cohesionados, así como ha permitido explorar y rescatar las capacidades y las potencialidades de cada persona para hacer frente a su situación actual.
El teatro inclusivo como recurso en Arteterapia para la recuperación en el trauma.
Authors: Lage de la Rosa Marta , Suárez Almazor Laura Isabel
Published: July 2021

Este artículo presenta una investigación a partir del análisis de la experiencia del taller teatral Afrontando Miedos de la compañía inclusiva Vertebradas Artes Escénicas, dirigida por Laura Suárez, impartido en el Congreso Aletheia: arte, arteterapia, trauma y memoria emocional, para observar y cotejar los resultados de la actividad artística teatral con los recursos paliativos en la superación del trauma. Intenta responder a ¿Cómo ayuda un taller teatral experiencial en la gestión emocional del miedo? y ¿Qué papel juega la inclusión en el proceso? La investigación vincula la importancia del cuerpo, la gestión emocional, el espacio seguro y la conexión con uno mismo y con los demás, en el tratamiento de recuperación, reflejando el resultado de las últimas investigaciones en neurociencia y psiquiatría. Se emplea una metodología fenomenológica de corte cualitativo. El análisis temático correspondiente a los siguientes temas y categorías: el taller de teatro, el cuerpo, la inclusión, el entorno seguro, arteterapia, el cuidado y la gestión emocional del miedo. Las fuentes de información son las encuestas a dieciséis asistentes al taller, la observación participante y entrevistas semiestructuradas realizadas a los tres facilitadores con diversidad funcional.

Los resultados responden a los objetivos de la investigación: Es posible gestionar los propios miedos en un taller de teatro inclusivo. Se ha utilizado el cuerpo como fuente de información. La dinámica del taller del Teatro de la experiencia ha facilitado, tanto la relación con las personas del grupo en un marco de inclusión y diversidad, como la conexión con la emoción del miedo en un entorno seguro, canalizándolo expresivamente a través de las artes escénicas. La principal limitación de la investigación es que el análisis corresponde a un solo taller. Se pretende aportar conocimiento sobre la experiencia de profesionales del arteterapia en relación a la gestión emocional del miedo y no se pretende generalizar los datos a otro ámbito distinto.
Epistemic Injustice in Political Discourses? The Problematic Concept of Authority in Langton’s Account of Pornography.
Authors: Parlanti Paolo
Published: July 2021

Through her silencing thesis, Langton has contributed to the study of epistemic injustice by highlighting a possible cause of such a phenomenon: She asserts that the pornographic representation of (straight) sexual relationships affects the felicity conditions of speech uttered by women, so this speech is not understood as an illocution by men. This fact arguably undermines women’s credibility, since their testimony is not even registered in men’s testimonial sensibility. However, this thesis entails problematic consequences from at least two standpoints. From a theoretical perspective, it enacts a circularity when it comes to the empirical individuation of the subordinative effects of pornography. I will point out that this problem arises from Langton’s substantive conception of power, i.e. from her notion of authority as an attribute which can be ascribed to preexisting subjects. From a political perspective, such conception of power allows Langton to performatively rank women as credible when testifying sexual violence, but it also leads her to silencing alternative political strategies, e.g. the ones proposed by Butler. Hence, I propose to consider this form of silencing as a specific kind of epistemic injustice, one that neutralises the performative value of political discourses.
Nietzsche, sismólogo del presente: el proyecto emancipatorio como tarea filosófica. Nota crítica de Transición Nietzsche de Germán Cano (València, Pre-textos, 2020
Authors: Sánchez Madrid Nuria
Published: July 2021

Nietzsche, sismólogo del presente: el proyecto emancipatorio como tarea filosófica. Nota crítica de Transición Nietzsche de Germán Cano (València, Pre-textos, 2020
Olivera Cadahia, Luciana; Carrasco-Conde, Ana (editoras) (2020). Fuera de sí mismas. Motivos para dislocarse. Herder. 399 páginas
Authors: Herrero Olivera Laura
Published: July 2021

Olivera Cadahia, Luciana; Carrasco-Conde, Ana (editoras) (2020). Fuera de sí mismas. Motivos para dislocarse. Herder. 399 páginas
Friends get vaccinated: The power of social media groups in the COVID-19 vaccination campaign
Authors: Manor Shlomit , Israeli Tamar
Published: July 2021

In times of crisis the power of social media is reflected in its ability to influence social behavior and act quickly without bureaucratic mechanisms. During the Israeli COVID-19 vaccination campaign, social media groups were formed to collect, verify, and disseminate information about leftover vaccine doses. Masses of people quickly joined these groups, rushed to the vaccine locations, and shared real-time information with other group members. Based on 15 semi-structured interviews with group members and admins, we identified three motives for creating groups: making information accessible, the struggle against vaccine opponents, and a desire to return to life as it was before the pandemic. Rapid group joining has been described in terms of collective behavior and contagion theory.
The Contextualisation of Islam in a Secular State: A Study of Singapore
Authors: Abdullah Walid Jumblatt , Muhammad Haniff Hassan
Published: July 2021

Muslim minority communities throughout the world grapple with the contextualisation of Islam. Islamic religious scholars, or the ‘ulama', have to issue jurisprudential rulings in accordance with the social, political, and religious contexts in which they operate. In doing so, they simultaneously have to deal with matters pertaining to authority and legitimacy. This paper analyses the contextualisation of Islam in secular states, with specific reference to Singapore. A few arguments will be made. Firstly, the paper will tackle the theological justifications for the contextualisation of Islam. At the same time, the paper will highlight the limits of contextualisation. Secondly, the paper will focus on the secular state of Singapore, and the issue of contextualisation in the context of the Muslim minority community there. It is argued that the discourse on contextualisation in Singapore is not novel. We further contend that the socio-political context in Singapore rightly drives the discussion on contextualisation, but suggest areas of contention in such efforts. Even though the state is the most dominant actor in the country, and thus its ideologies and attitudes toward Islam are a key determinant in the faith’s contextualisation, other actors display agency in the process, too. This paper is situated within the literature on state-society and state-Islam relations.
Why the “One-Size-Fits-All” Subsidy Structure of Tabung Haji No Longer Works and How to Move Forward
Authors: Nur Hasnida Abdul Rahman  , Mohd Zaidi Md Zabri
Published: July 2021

The original, novel idea behind Tabung Haji’s establishment is to help Malaysian-Muslims to save for hajj. However, over the years, the subsidy amount for hajj pilgrims is ever-increasing. A case in point, for the 2020 hajj season, a first-time hajj pilgrim needs only to pay RM9980 out of RM22,900 of the original costs. Stated differently, Tabung Haji subsidizes almost half (43.58%) of the total costs. As with any subsidy, the main question is, where do we find the money? Ironically, Tabung Haji is a business entity that needs to generate profit. Consequently, this paper aims to examine the sustainability or lack thereof of the existing subsidy structure and suggest the way forward. Due to its politically sensitive nature, instead of eliminating subsidy, the authors used the Household and Basic Amenities Survey 2019 data to simulate a regressive subsidy structure for first-time hajj pilgrims mathematically.
Interpretación de pruebas diagnósticas de COVID-19
Authors: Crespo Román Renan Humberto , Velarde Dunois Ketty Gruschenka
Published: July 2021

Uno de los permanentes e importantes retos en la actualidad es la correcta selección y realización de las pruebas diagnósticas de COVID – 19, su relación clínica, la evaluación con las características de transmisión y la interpretación de los resultados. Es de suma importancia determinar el posible momento de transmisión para la elección de la técnica que nos dará un resultado confiable y detectará los marcadores que permitan realizar el diagnóstico. Las pruebas pueden ser directas, que nos permiten detectar los antígenos o partículas virales; o indirectas, mismas que nos permiten la localización de inmunoglobulinas que nos proporcionarán información sobre la evolución en la que se encuentra el paciente. En una primera fase de la infección, se pueden desarrollar pruebas directas con una mejor efectividad, y en una etapa más avanzada la detección es realizada por pruebas indirectas.
Reeducación de la mecánica ventilatoria con el uso del espirómetro postextubación en pacientes post COVID-19
Authors: Jimenez Vignola Enrique Gary , Echeverría Villarroel Laura Elizabeth , Cabrera Ponce Mauricio
Published: July 2021

El nuevo coronavirus es una enfermedad infecciosa causada por el virus SARS-Cov-2, que tiene consecuencias negativas por sus complicaciones. Entre las más frecuentes está el Síndrome de disstres agudo, que presenta una hipoxemia leve que lleva a una intubación. Es por eso que se llevó la investigación sobre la aplicación del espirómetro, y así disminuir el efecto postextubación y mejorar las distensibilidades pulmonares, que es el efecto más común tras la extubación en pacientes post COVID-19. Mediante la aplicación del espirómetro se demuestra, al menos bibliográficamente, un óptimo resultado, aumentando la capacidad pulmonar y disminuyendo las secuelas a largo plazo.

Se describe y plantea la reeducación de la mecánica ventilatoria con el uso del espirómetro, al ser un instrumento que potencia la ventilación colateral, lo cual logra disminuir los efectos adversos tras la extubación, como ser: la disnea prolongada, hipoxia leve y complicaciones estructurales en el parénquima pulmonar en pacientes post COVID-19, reduciendo las secuelas a largo plazo.
Desarterialización uterina y miomectomía como tratamiento conservador del útero con múltiples miomas: reporte de un caso
Authors: Suarez Canido Miguel Ángel , Castro Ñuco Jimmy
Published: July 2021

Los fibromas o leiomiomas uterinos son los tumores sólidos más frecuentes del aparato genital femenino, con una frecuencia en las mujeres en edad fértil entre el 20% al 40%. Las cifras reales de prevalencia se desconocen, ya que más del 50 % de ellos son asintomáticos. La ligadura bilateral de las arterias uterinas (ya sea por laparotomía o laparoscopia), antes de la miomectomía, es uno de los métodos quirúrgicos más empleados para disminuir la pérdida sanguínea. Las ventajas de esta técnica incluyen que el tiempo quirúrgico sea corto y con mínima perdida sanguínea durante la cirugía.  Se presentó una paciente de 32 años, G0P0, con diagnóstico de miomatosis uterina, la misma condicionada a cuadros de hemorragia transvaginal abundantes, con repercusión hemodinámicas y sistémicas.
The Profile of the Companies Most Affected by the COVID-19 Crisis in Morocco
Authors: ELGOUZ WAFA , Echcharfi Farid , Zouiten Mounir
Published: July 2021

In this article, our target is to handle macroeconomic data of quarterly growth by branch of activity with microeconomic data from the World Bank Business Survey to deduce the profile of the businesses largely affected by the outbreak of COVID-19 crisis in Morocco. Our findings show that the companies and businesses that suffered the most are those which employ more people, and those, which generate less turnover.
Intention d’usage des messages réseau-publicitaires par le cybernaute nord-africain : Etude qualitative
Authors: Hathout Chaimae , Hamadi Chakib , Hathout Sara
Published: July 2021

Ces dernières années, imprégnées d'une large démocratisation de la publicité sur les réseaux sociaux, nous cherchons à modéliser la relation entre les stratégies de communication électronique menées sur ces plateformes par une entreprise pratiquant le Yield management, et l'attitude du cybernaute nord-africain envers cette forme de publicité sociale. Dans ce cadre, un modèle de recherche a été élaboré au fur et à mesure que nous avancions dans notre littérature. Nous avons ensuite cherché à analyser et contextualiser les différents éléments dudit modèle à travers une étude qualitative.
Exploring the relationship between trust, ease of use after purchase and switching re-purchase intention
Authors: Suleman Dede , sabil Sabil , Rusiyati Sri , Sari Imelda , Rachmawati Susan , Nurhayaty Ety , Parancika Rd Bily
Published: July 2021

The research conducted by this researcher intends to analyze the effect of trust and ease of use on purchase decisions and repurchase intention. The data collection method in this study uses a questionnaire with 130 consumers who have purchased at an online store. The analytical method used is descriptive analysis, and the test instrument uses SEM AMOS. in this study using four variables, thirteen dimensions and twenty-six indicators. The results show that trust and ease of use have a significant effect on buying decisions and also have a significant effect on repurchase intention, and purchase decisions have a significant and significant effect on repurchase intention. so it can be said that trust and ease of use are the entry points that make consumers start to move to the next stage, therefore online store marketers need to pay attention.
How to purchase an order from brick and mortar retailers during COVID-19 pandemic? A rise of crowdshipping
Authors: Huynh Giang Thi Thuy , Chung Nhu Tu Bao , Phung Thanh Tuan
Published: July 2021

This paper aims to determine factors that affect consumers’ intention to re-purchase by combining consumers’ attitudes and satisfaction in mobile shopping via sharing economy platforms. The research sample consists of 367 valid participants in the metropolitan area of Ho Chi Minh City who experienced buying products from brick and mortar retailers by using crowdshipping service, using PLS-SEM. The results confirm that Personal Innovativeness significantly affected Perceived Ease of Use (PEOU) and trust. Consumers' attitudes toward buying products via crowdshipping services in sharing economy platforms are determined by PEOU and trust, and their satisfaction of an purchasement is impacted by Check out attributes and Delivery attributes, leading to re-purchase an order via this platform. Brick and mortar retailers need to create a corporation with crowdshipping service platforms to increase sales during COVID-19 pandemic. Besides, shipping quality should be ensured to satisfy consumers which leads to long-term usage.
Investigating students' behavioral intention to use mobile learning in higher education in UAE during Coronavirus-19 pandemic
Authors: Al-Hamad Mohammad Qasem , Mbaidin Hisham Othman , AlHamad Ahmad Qasim Mohammad , Alshurideh Muhammad Turki , Kurdi Barween Hikmat Al , Al-Hamad Nazek Qasim
Published: July 2021

The study explores the impacts of fear emotions on technology adoption by teachers and students during the COVID-19 pandemic. Mobile learning (ML) has been considered an educational, social platform in private and public higher education institutes. Since several fears are connected with COVID-19, this study's key hypotheses are related to how COVID-19 influences Mobile Learning (ML) adoption. Educators, teachers, and students may face some common types of fear in the course of the coronavirus pandemic, such as fear of losing social relationships, fear of educational loss and failure, and fear because of the lockdown of the family in the prevailing circumstances. Different theoretical models, named Expectation-Confirmation Model (ECM) and Technology Acceptance Model (TAM), are combined to develop an integrated model for this study. The proposed model was analyzed with the development of a questionnaire survey. The survey served as a data collection instrument to collect data from students of the University of Sharjah in Sharjah city in the United Arab Emirates (UAE). Three hundred twenty undergraduate students participated in the study. The collected data was evaluated using the partial least squares-structural equation modeling (PLS-SEM). The significant predictors revealed by experimental results included perceived fear, perceived ease of use, expectation confirmation, satisfaction, and perceived usefulness, explaining the intention to use the mobile learning platform. According to our study, teaching and learning can be benefitted to a great extent by the adoption of mobile learning (ML) during this pandemic for educational purposes; however, this process may be negatively affected by the fear of future educational results, fear of losing social relations and fear of stressful family situations. Therefore, appropriate student evaluation may be conducted to overcome the emotional distress caused by the pandemic effectively.
Investigating e-wallet adoption of COVID19 intra-period among Malaysian youths': Integrated task-technology fit and technology acceptance model framework
Authors: Yaakop Azizul Yadi , Shi Yee Pei , Foster Bob , Saputra Jumadil
Published: July 2021

As embodied in Malaysia's Vision 2020, Malaysia aims to become a cashless country. Therefore, the existing statistical data indicated that the e-wallet adoption rate remains at a low percentage. It has been a barrier for Malaysia in achieving the aims to become a cashless country. The use of e-wallet was also expected to rise amidst the Covid-19 pandemic; to optimize an intervention for the Covid-19 outbreak. Thus, the current study investigates the factors that correlate with the intention to use e-wallet during the Covid-19 pandemic. This study is designed using a quantitative approach through cross-sectional data. A total of 160 Malaysian youths participated and collected by using an online survey. Further, the Task-Technology Fit (TTF) model and Technology Acceptance Model (TAM) were integrated into this study with an extended variable, namely, perceived credibility. The analysis results showed that Individual-Technology Fit, Task-Technology Fit, Perceived Usefulness, Perceived Ease of Use and Perceived Credibility were significantly correlated to Covid19 intra-period e-wallet adoption. In conclusion, a considerable theoretical contribution was demonstrated by integrating TTF-TAM and Perceived Credibility in a single integrated model. The constructs in the TTF model (i.e., Individual-technology fit and task-technology fit) has positively related to the constructs in the TAM model (i.e., perceived usefulness and perceived ease of use). This study is useful to stakeholders and provides enhanced directions to meet market needs by understanding and predicting e-wallet user's post-pandemic behavior, thereby helping service providers attract new users and retain their existing users.
The role of social media marketing, entertainment, customization, trendiness, interaction and word-of-mouth on purchase intention: An empirical study from Indonesian smartphone consumers
Authors: Wijayaa Oscarius Yudhi Ari , Sulistiyanib Sulistiyanib , Pudjowatic Juliani , kartikawatid Theresia Siwi , Kurniasih Ninik , Purwanto Agus
Published: July 2021

The purpose of this study is to analyze the effect of customization purchase intention of Smartphones, entertainment, interaction, social media marketing, trendiness, and Word-of-Mouth on purchase intention of Smartphones. The study uses a quantitative method by distributing online questionnaires to 217 consumers in Banten Indonesia and the method of distributing questionnaires is a snowball sampling system. Data processing and testing of hypotheses and models in this study are based on Structural Equation Modeling (SEM). The research has benefits in increasing knowledge and information for companies about the importance of brand awareness through increasing influencing factors such as social media marketing and word of mouth. Based on the results of SmartPLS analysis, Interaction, Word-of-Mouth, Social media marketing, Entertainment and Trendiness have insignificant effects on purchase intentions of Smartphones while Customization has significant effects on purchase intentions of Smartphones during.
Incidence of Infant Death among the Baiga Tribe of Chhattisgarh, India
Authors: Kumar Premi Jitendra
Published: July 2021

All children have the right to survive and thrive. Yet, children and adolescents still face significant challenges surviving past infancy and developing to their full potential. In 2019, 6.1 million children and young adolescents died, mostly from preventable causes. Objectives of the present study are to explore the incidences and determinants of infant death among the Baiga tribe of Chhattisgarh. This study is a retrospective, quantitative and exploratory and quasi qualitative research. Regarding the present study it has chosen the Baiga tribe. Structured interview schedule and non-participant observation were used for collection and cross validation of data. The results were analyzed using the 16.0 SPSS package. Pearson’s chi-square test and multinomial logistic regression analysis were used. More than half (51.2%) of the respondents had lost one or more than one infant already, out of this percentage, 46.3% respondents had lost one infant, which was 23.8%, of the total respondents. Just more than one third (35.2%) respondents witnessed the death of male infant, whereas 33% respondents were the helpless witness of the death of female ones. It can be presumed that delivery of the Baiga newborn by either untrained or trained “Dai” were one of the causal factors for death of male infant of the respondents. Most of the respondents have believed that the illness of their infant is the major cause for the death. The unpleasant fact is not only the cause of general tragedy in the Baiga household; it is also a pointer to utter failure in government health services in the backward sector. The non-participant observation finished by the researcher throughout the fieldwork is authenticated that the foremost cause for incidences of large-scale infant deaths in the Baiga tribe is the tremendous poverty widespread in them and the maternal malnutrition during pre and post partum period and failure of reproductive and child health programme in the Baiga community.
Q-Absorbance Ratio Spectrophotometric Method for the Simultaneous Estimation of Metformin Hydrochloride and Voglibose in Tablet Dosage form
Authors: Tejashree R. Kedar , Dashetwar A.R. , Kardile D.P. , Jadhav A.P. , Bhagat V.C. , Shete R.V.
Published: July 2021

A new, simple, accurate, precise and reproducible UV-Spectrophotometric method is being developed for the simultaneous estimation of Metformin Hydrochloride and Voglibose in tablet dosage form. The stock solutions were prepared in methanol. The λmax for Metformin Hydrochloride and Voglibose were found to be248 nm and 287nm respectively. The Metformin Hydrochloride and Voglibose obeyed Beer’s law in concentration range of 8-16µg/ml and 4-20µg/ml respectively. Results of analysis of absorbance ratio method were analysed and validated for various parameters according to ICH guidelines for accuracy, precision, linearity, robustness, LOD and LOQ. The proposed method is highly sensitive, precise and accurate, therefore can be used for intended purpose.
Histopathological and Hormonal Evaluation of Interaction effects of Ethidium Bromide, Nigella sativa, and Silver Nanoparticle on Male Rat Fertility
Authors: Ethaeb Ali M. , Al-Shaeli Sattar J.J. , Ahmed Tamarah H.
Published: July 2021

Background: Food and water that contained metals and chemicals, contaminated air, extensively used of medicinal substances and cosmetic materials can induce infertility in several ways, and therefore increased numbers of couples not conceive globally. Aim: Investigation the toxic impact of ethidium bromide (EB) on testicular function and the therapeutic role of Nigella sativa (NS) and silver nanoparticles (AgNPs). Materials and methods: A total of 50 male Wistar rats were assigned randomly into five equal groups; control (C) negative and four experimental which respectively received EB only, EB and NS, EB and AgNPs, and EB, NS, and AgNPs for 30 days. Post-experimental period, blood and testicular tissues were collected to determine the antioxidant activity, fertility hormones level, sperm quality and quantity, and histological structure of the testis. Results: In comparison to control, EB group exhibited significant reduction (P<0.05) in antioxidants (catalase (CAT), superoxide dismutase (SOD), and glutathione perioxidase (GPX)), sperm parameters (quantity, morphology, viability and motility), fertility hormones (FSL, LH, and testosterone), and clear histological defects (atrophy in seminiferous tubules, spermatozoa and spermatogonia apoptosis, vacuolization, congestion and thrombus in seminiferous tubules septum, and leydig cells degeneration). However, all these negative effects were significantly reversed in response to supplement of NS, AgNPs, and mixed of them. These including modulate antioxidants activity, sperm’s quantity and quality, fertility hormones, and testicular tissue structure. Conclusion: NS and AgNPs possess interesting properties that have ability to reverse negative impacts of EB, and therefore could be alternative and safe therapeutic agents for infertility.
Role of the Hospital Pharmacist in the Quality of Gastroenterology Endoscopy care
Authors: Mohamed Réda Sefrioui , Akrim Jaouad , Fettah Hicham , Elammani Wissale , Derfoufi Sanaa , Benmoussa Adnane , Derraji Soufiane
Published: July 2021

Background: Despite the many efforts made in the field of endoscope treatment procedures, the risk of infection remains topical. Methods: We conducted an evaluation audit of the manual cleaning procedure applied to flexible endoscopes at the Gastroenterology II department of the Mohamed V Military Instruction Hospital in Rabat. For this, we used a ready-to-use test for detecting ATP according to a bioluminescence reaction. Results: Biological control of the internal canal of the endoscopes used showed that the cleaning was not in conformity with the target value in 62% of the cases. External biological control was non-compliant in 54% of the cases. Conclusion: Compliance with the basic rules of hospital hygiene, the application of rigorous cleaning and disinfection procedures and the orientation towards automated endoscope disinfection systems are essential elements in the prevention and fight against post-endoscopic infections.
Preparation of Anti-immunodeficiency pills by the Herbal solution
Authors: Aatral G.V. , S. Samraj , S. Kavitha , N. Arunkumar , E. Nakkeeran , G. Surendran
Published: July 2021

Background: In Indian medical treatments, the extracts from plants and leaves played major role in pharmaceuticals drugs. Objective of the present study is to find the anti-immunodeficiency pills by the herbal solution. Methods: Natural medicine in this is to prepare the anti-immunodeficiency tablet from the neem leaf, guava leaf and the high vitamin content pomegranate leaf. The mixed extract of all three leaf phytochemicals and which can use as an anti-immunodeficiency tablet. To extract the ingredients from the leaves the process of infusion has been followed and then the extract converted to powder as per standard procedure. Result and Conclusion: The produced herbal combinations have been characterized by the FTIR, XRD, FESEM with EDAX (EDS) and antimicrobial testing and the results is analysed.
Method Development and Validation for Estimation of related Substances in Tilorone Dihydrochloride using RP¬-HPLC
Authors: Baktiyar M. Zeba , Ishaq B. Mohammed , Reddy L Siva Sanker , M. Sreenivasulu
Published: July 2021

A simple, precise and reproducible RP-HPLC method was developed for the estimation of related substances in tilorone dihydrochloride. Quantification was performed using a Zorbax SB-phenyl column (150 × 4.6mm, 5µ) with mobile phase A: 20mM potassium dihydro phosphate + 2ml of triethylamine, pH 2.30 and mobile phase B: acetonitrile, methanol and water 60: 20: 20% v/v. A gradient program was followed with a run time of 55 minutes at a flow rate of 1.0 ml/min. The column temperature was maintained at 40°C, the injection volume was 10 µl and the detection was performed at 269nm using a PDA detector. The retention time of Tilorone dihydrochloride was found to be 10.36 minutes. The proposed method has been validated according to the ICH guidelines for Linearity, Precision, Accuracy, LOD, and LOQ. The method was linear from 0.157 - 3.934μg/ml for standard, 0.153-3.820μg/ml and 0.166 - 4.140μg/ml for impurities, TLHC01 and TLHC02 respectively. The impurities TLHC01 and TLHC02 have been mapped in all stress conditions. The LOD and LOQ of TLHC01 were found at 1.757μg/ml and 5.857μg/ml and 1.919μg/ml and 6.396μg/ml respectively for TLHC02 respectively. Statistical analysis showed that the method was precision, reproducible, selective, specific and accurate for the analysis of Tilorone dihydrochloride and its impurities. The wide range of linearity, sensitivity, precision, short retention times and simple mobile phase have shown that the method is suitable for the routine quantification of mass impurities of tilorone hydrochloride and its dosage pharmaceutical forms with high precision and accuracy.
In-vitro Cytotoxic and Antioxidant Activity of Bauhinia racemosa Root
Authors: P. Aravanan , S Jayakumari
Published: July 2021

Objective: To evaluate cytotoxic and antioxidant activity of the plant Bauhinia racemosa root by in-vitro cell line analysis. Methods: MCF-7 cell lines were used for the study to find the inhibitory concentration of the extract. DPPH and NO scavenging assays were performed to study the antioxidant nature of the extract. Results and Conclusion: In MCF-7 cell line cytotoxicity effect was observed in tested sample concentrations in 48 hours treatment, it also revealed that increased concentration of drug shown increased cytotoxicity over the MCF-7 cell lines. DPPH and NO scavenging Assay revealed a concentration dependent radical scavenging capacity of the tested sample concentrations of Bauhinia racemosa root spectrophotometrically.
Comparison of 3-carbethoxy-4-phenyl-but-3-en-2-one and methylene quinuclidinone as a ligand to reactivate mutant p53: molecular docking study in three types of crystal structure mutant p53: 2BIM, 2JIY, and 2J21
Authors: Julianus Jeffry , Jumina Jumina , Mustofa Mustofa
Published: July 2021

The existence of a large number of mutant p53 in cancer cell nuclei gives a poor prognosis. However, mutant p53 existence creates a challenge to design a new anticancer compound targeted to mutant p53. The 3-carbethoxy-4-phenyl-but-3-en-2-one is a novel compound that was designed as an anticancer agent targeted to mutant p53. Further evaluation of this compound was done by in silico examination employing Auto Dock Vina as molecular docking software. Molecular docking results denoted that 3-carbethoxy-4-phenyl-but-3-en-2-one had lower binding energy than methylene quinuclidinone (MQ). Visual inspection of the docking results denoted that 3-carbethoxy-4-phenyl-but-3-en-2-one docked in the binding pocket crystal structures of mutant p53 (2BIM, 2J1Y, and 2J21), forming a hydrogen bonding or hydrophobic interaction with Cys-124, and the distance between double bonds of α, β-unsaturated of 3-carbethoxy-4-phenyl-but-3-en-2-one with –SH group of Cys-124 were shorter than MQ. These results demonstrated that 3-carbethoxy-4-phenyl-but-3-en-2-one is a promising ligand to mutant p53 in many types of mutations and predicted to have better activity than MQ as a mutant p53 reactivator especially in cancers with mutation type Arg-273-His and Arg-245-Trp.
Preparation and Study Biological Activity of Polybarbiturate Linked Tetrazole Ring
Authors: Radhi Ali Jabbar , Qasim Shaheed Dhurgham , Mohammed Hamza Heriz , Kadhim Oleiwi Zeyad
Published: July 2021

A series of new polymer of barbiturate containing tetrazole ring were synthesized by Click polymerization between diazido and dinitrile derivatives in the existence of NH4Cl as catalyst. The polymers structure were confirmed by several techniques, IR and NMR spectroscopy. The end polymers possess high solubility at room temperatures in aprotic polar solvents for example DMSO and DMF. Thermal properties and stability of the new polymers were analyzed by using two thermal analysis are (TGA) and (DSC) which showed that the polybarbiturate containing tetrazole ring possess Tg value (149–187°C) and excellent thermal stability. The new polytetrazole polymers were screened antibacterial activity by using some kinds strains of Gram-negative and Gram-positive bacteria. The tested polymers displayed good significant against these bacteria.