bluuebunny/crossref_metadata_2025 huggingface dataset:
Florística e fitossociologia do estrato herbáceo/arbustivo em 19 áreas de savanas amazônicas, Brasil
Authors: Da Rocha Antônio Elielson Sousa , Da Costa Neto Salustiano Vilar
Published: February 2022

O presente artigo visa avaliar a composição e a estrutura do estrato herbáceo/arbustivo em savanas amazônicas, a fim de discutir a similaridade florística entre 19 áreas nos estados de Amazonas, Amapá, Pará e Roraima. Para o levantamento, foram alocadas 120 parcelas de 1 m2 por área. Foram amostradas 390 espécies, em 203 gêneros e 64 famílias. As análises apontam para composições florísticas significativamente distintas entre si. As áreas próximas foram mais similares floristicamente, diminuindo à medida em que aumenta a distância entre elas, com um conjunto de espécies endêmicas ou exclusivas e áreas com individualidades próprias, o que implica alta especificidade desta vegetação. Diversos fatores podem influenciar na distinção florística das áreas, o que torna necessária a ampliação de estudos acerca das condições ambientais desta vegetação, com a finalidade de melhor compreendê-la.
Geospatial methods for morphometric characterization of the Caxiuanã river basin, Amazon, Brazil
Authors: De Andrade Milena Marília Nogueira , Mendes Amílcar Carvalho
Published: February 2022

O objetivo deste artigo é apresentar a caracterização morfométrica da bacia hidrográfica do rio Caxiuanã, localizado na Floresta Nacional de Caxiuanã, no município de Melgaço, Pará. Por ser uma unidade de conservação e uma área isolada com recursos naturais importantes, tecnologias de sensores remoto, tais como imagens de satélite Landsat e de radar, podem prover informações a respeito desta bacia hidrográfica. Aspectos como a caracterização da rede de drenagem, a geometria da bacia e as características do relevo foram mensurados através de 22 parâmetros morfométricos. Esta análise foi obtida com técnicas de geoprocessamento por meio das ferramentas do ArcHydro e do SurfaceAnalysis no programa ArcGis. Foi realizada uma delimitação semiautomática da bacia hidrográfica a partir de fusão de sensores de radar e óptico. Os resultados indicaram que a bacia de drenagem do rio Caxiuanã possui um padrão dendrítico de desenvolvimento, instalado em rochas sedimentares da formação geológica Alter-do-Chão e em depósitos aluvionares. A bacia possui forma alongada, o que indica a concentração do volume de água em diferentes pontos; o baixo valor do fator forma indica uma bacia não susceptível a enchentes. Os parâmetros morfométricos foram utilizados para a caracterização quantitativa ambiental e física.
Cyperaceae aquáticas e palustres na Floresta Nacional de Caxiuanã, Pará, Amazônia, Brasil
Authors: Maciel-Silva Juliene De Fátima , Nunes Clebiana De Sá , Ferreira Leandro Valle , Bragança Gil André Dos Santos
Published: February 2022

Este artigo apresenta um tratamento taxonômico das espécies de Cyperaceae aquáticas e palustres ocorrentes na Estação Científica Ferreira Penna (ECFPn), inserida na Floresta Nacional (FLONA) de Caxiuanã, Pará, Amazônia, Brasil. Foram analisados os acervos dos herbários MG, HBRA e IAN, além dos herbários INPA e RB (online), e espécimes procedentes de duas expedições de coleta à ECFPn. Foram registrados 13 gêneros e 26 espécies de Cyperaceae aquáticas e palustres na ECFPn: Eleocharis (5 espécies), Cyperus (4), Rhynchospora (3), Scleria (3), Calyptrocarya (2), Hypolytrum (2), Becquerelia (1), Bulbostylis (1), Diplacrum (1), Diplasia (1), Fimbristylis (1), Fuirena (1) e Lagenocarpus (1). São apresentados chave taxonômica, caracteres diagnósticos, distribuição geográfica e ilustrações das espécies encontradas.
Learners’ Aptitude towards Using Digital Techniques in Learning EFL: Internet Discourse
Authors: Almagarbeh Bassam
Published: February 2022

The use of digital techniques has become very common inside the classroom as the past few decades witnessed a continuous development in the field of education. Concerning EFL language teaching and learning, digital information has developed to be usual practice in the classroom. The number of EFL learners who are considered “highly ready” for this kind of digital transformation is very limited. These EFL learners used personal devices such as laptops, IPads, smart devices with particular resource materials that were prepared before teaching and using these devices in the classroom.  Generally, EFL teaching and learning appeared to be more exciting due to the use of smart devices and digital touch. They seemed to be creative and innovative inside the e-classroom. This paper aimed at investigating learners’ aptitude towards the use of digital techniques in learning EFL. It attempted to examine the way digital learning media motivates EFL learning; then, sketches the difficulties experienced by EFL learners inside the e-classroom; and finally, recommends possible solutions to these difficulties. This research is designed to support professional learning and contribute to further investigations on similar themes. The study consisted of 30 EFL learners at the Institute of Languages at the University of Tabuk in Saudi Arabia selected randomly. It is based on Tubaishat and Lansari‘s (2011) Model of E-learning. Two research instruments were used; an Active Inspire Test and a questionnaire survey. The findings indicated that there are statistically significant differences at level (0,05) in learners’ aptitude towards the use of digital techniques in learning EFL inside the e-Classroom.
Multilingualism and Teaching Methods: A Study with the Reference of Indian English Language Teaching Classrooms
Authors: Morve Roshan K. , Maurya Suresh Chandra
Published: February 2022

This paper analyses the issues and challenges of linguistically diverse English Language Teaching (ELT) classrooms in India. In India, the English language is not the first language; the majority of them speak Hindi or their state languages. Due to this concern, numerous questions are arising for teachers, such as (a) How many languages and which specific language should be used as a mode of classroom communication to convey the message/instruction effectively? (b) What should be the number of students in a particular class? and (c) Does the teacher have competency in the native language? Most of the local schools in Tribal areas do not teach in native or “Adivasi” language in ELT classrooms. Indian speaking now many languages, they are multilingual but for communicating, we have to speak in a single language. So, the question is arising for how to tackle with this multilingual classroom to teach the English language? This is a challenge for India in the twenty-first century. Thus, we need to have some ways to accept the challenge and to increase the level of students in India. This paper suggests some solutions to those challenges and seeks the answer to such problems to enhance the quality of multilingual in ELT classrooms.
MATHEMATICAL RELATIONSHIPS OF MODELS OF TWO-PHASE FLOWS IN CHANNELS OF REACTORS AND STEAM GENERATORS OF NPP’s FOR CALCULATION OF THEIR HYDRODYNAMIC CHARACTERISTICS
Authors: Yefimov О.V. , Pylypenko M.M. , Kavertsev V.L. , Harkusha T.A. , Yesypenko T.O.
Published: February 2022

Two-phase flows of the working substance in the steam-generating channels of reactors of single-circuit NPP’s and steam generators of two- and three-circuit NPP’s represent the joint movement of liquid (feed water) and steam in the form of a steam-water mixture. The forms of movement of two-phase flows are much more diverse, and the laws of their movement are much more complicated than flows of single-phase media, and they are characterized by a large number of parameters. This is due to the fact that when the flow of the steam-water mixture moves in the steam-generating channels, mass exchange processes occur between the liquid and vapor phases of the mixture, in which the volumes of the phases change; the interfaces between the phases of the mixture vary along the length of the channel and often do not have a distinct character. The cross-sectional mean velocities of the liquid and vapor phases of the flow are not equal to each other, and the difference in the velocities of the phases in the steady-state mode of motion of the two-phase flow depends on the mass flow rate of the steam-water mixture, its pressure, direction of flow, heating intensity, and other indicators. All this complicates experimental studies and calculations of parameters and hydrodynamic (gas-dynamic) characteristics of two-phase flows of a steam-water mixture of a working substance in reactors and steam generators of nuclear power plants. The article discusses mathematical relationships for calculating the hydraulic characteristics of two-phase flows of different structures during the movement of a steam-water mixture in the steam-generating channels of reactors and steam generators of nuclear power plants, namely bubble, slug, rod, dispersed. The ratios are given for various designs of the channels of reactors and steam generators.
IMPROVING THE QUALITY CONDITION OF THE STRUCTURE OF WELDED JOINTS MADE OF ROTOR STEEL
Authors: Dmytryk V.V. , Skulsky V.Yu. , Kasyanenko I.V. , Vavilov O.V. , Kantor O.G.
Published: February 2022

The solution to the problem of increasing the reliability and service life of the welded joint of the rotor involved obtaining its original structure with improved quality characteristics. Obtaining was achieved by improving the technology of automatic welding. This improvement was based on the performing the welding process on the optimized parameters of the mode, which provided the appropriate temperature regime of the one-piece connection that is made. Thus, the welding heat provided the formation of the original structure with higher quality characteristics in comparison with a similar structure obtained by the normal mode of welding. It was found that austenitic grains in the structure of the heat affected zone of the welded joint, which is heated above АС3, are smaller in size compared to similar grains in the structure of the standard technology. Accordingly, the new decay products of austenite in the area of heat affected zone, which is heated to the temperature range AC1–AC3, were sorbitol and troostite. In general, by obtaining a better structure allowed to increase the reliability and increase the service life of the rotor by 10…15%.
Ações intersetoriais para promoção de saúde no sistema prisional
Authors: Uberti Ana paula da silva
Published: February 2022

Este projeto de intervenção objetivou a realização de ações intersetoriais para a promoção de saúde, especialmente a saúde mental. As atividades ocorreram durante o ano de 2013 e 2014 e foram fruto do estabelecimento de redes de parceria entre diversos setores da sociedade. Participaram da análise situacional 45 mulheres as quais encontravam-se no Anexo Feminino da Penitenciária Modulada Estadual de Montenegro. As atividades oferecidas às apenadas envolveram a arte, música, religião, saúde e trabalho, tendo como objetivo o desenvolvimento de ações que promovessem a saúde em amplo aspecto. Independente do objetivo da atividade proposta, abrir as portas das instituições prisionais para a sociedade é uma forma de compartilhar a responsabilidade sobre o motivo que traz tantas pessoas ao cárcere.
Prevalence of Foreign in Rumen and Reticulum of Cattle Slaughtered at Bedele Municipal Abattoir
Authors: Daba Gudata  , Tolesa Neggasa and Firomsa Giragn
Published: February 2022

A Cross sectional study was conducted on 384 slaugtered cattle at Bedele municipal abattoir to determine the prevalence of foreign bodies in their rumen and reticulum and to identify the common risk factors associated with their occurrence. Rumen and reticulum were thoroughly examined by visual inspection and palpation and all the contents were inspected. The types of foreign bodies were identified after washing. From a total of 384 animals examined, 52 (13.5) were found positive for the presence of foreign bodies in rumen and no foreign body was found in reticulum. The types of foreign bodies detected were piece of cloth, plastics, rope and shoelace. Piece of cloth were the most common with a prevalence of 10.2%. Prevalence of foreign bodies were significantly associated with ade and body condition of the animals (p<0.05). Foreign bodies were more frequent in older cattle (>8years) than in younger (4-8years). The prevalence of ruminal foreign bodies were highest in poor body conditioned animals compared to cattle with better body condition. The prevalence of foreign body ingestion found in cattle by this study show that littering the environment with piece of cloth and other indigestible materials could pose health problem for free grazing cattle.
La teoría fundamentada en educación matemática
Authors: Valdez Ana Rosa Flores
Published: February 2022

En este artículo se presenta un avance de la investigación que se está realizando en el Programa de Doctorado del Instituto Superior de Ciencias de la Educación del Estado de México (ISCEEM), denominada “Construcción de la Inferencia científica de los Estudiantes de Bachillerato en la resolución de problemas contextualizados”. En el presente documento se aborda una aplicación de la Teoría Fundamentada en el campo de la investigación en Educación matemática, tomando la información que se ha recopilado de la investigación mencionada.
Pemanfaatan Aplikasi Keuangan di Smartphone untuk Manajemen Keuangan Usaha Pada Kelompok PKK Kelurahan Rambung Barat
Authors: Manik Fuzy Yustika , Ginting Dewi Sartika Br. , Yuliaty Tetty
Published: February 2022

The purpose of this service is to provide training and assistance to PKK members to be able to manage finances and manage business finances. The method used is a social approach. Where the preparation stage is carried out by conducting surveys and observations to identify problems and analyze the situation and community needs. Then carried out the implementation stage with two main activities, namely training and mentoring. During the training, PKK members were given knowledge in financial management and practical financial management with applications. Assistance is provided when participants practice directly using the application. Based on the evaluation carried out, it is known that the results of this service have increased the knowledge of PKK members about financial management with an average posttest score of 70. Through the assistance carried out, each PKK member already has an account in one of the applications. financial management, and can be used for recording every transaction, debt to recording stock of goods that are still available
Pelatihan Pendampingan Pembuatan Media Pembelajaran Interaktif dengan Memanfaatkan Aplikasi Zoom Meeting Basic Berbasis Multimedia Pada Guru YP TK Farhan An-Nur Batang Kuis-Deli Serdang
Authors: Suhendra Suhendra , Nadeak Salam Irianto , Saharja Komda
Published: February 2022

During the Covid-19 Pandemic, all levels of education starting from kindergarten to university began to use multimedia-based learning media, this was due to the lack of face-to-face learning at all levels of education. This Competitive Community Service Partner is a group of teachers from the Farhan An-Nur Kindergarten Islamic Education Foundation which is located on Jl. Peringgan Hamlet III, Tumpatan Nibung Village, Batang Kuis Subdistrict, Deli Serdang Regency. This Playgroup (KOBER) has 5 teachers and 52 students. During the Pandemic, schools run teaching and learning activities face to face and alternately, this is because the problem faced by partners is that teachers do not have the ability to create and design interactive multimedia-based learning media by utilizing conference apps, including basic zoom meetings. However, the quality of student learning continues to decline due to the short duration of study. The solutions offered are providing training in designing teaching materials, providing training in making learning videos by utilizing applications that are currently often used by teachers in conducting online learning, namely zoom meeting basic. The method is carried out by means of lectures and practices, with each type of training carried out 4x2 hours of meetings for 1 month. Monitoring and post implementation of competitive community service activities are carried out twice, namely the 1st month and 4th month after the program is completed to ensure the sustainability of the program that has been implemented
Penerapan Teknologi Mesin Pencacah Sampah Organik Rumah Tangga di Desa Pesucen Kabupaten Banyuwangi
Authors: Muzaka Khairul , Rahayu Ninik Sri , Rohman Abdul
Published: February 2022

Currently, there is a lot of garbage scattered around in the environment, such as the garbage found in small rivers due to the lack of awareness of people who throw garbage in rivers. In fact, throwing garbage in the river causes the overflow of river water so that there is a flood. To overcome these environmental problems, a tool was created, namely the household organic waste chopper, this machine is one solution to reduce waste disposal in the river, which then the results of the enumeration are used for organic fertilizers for plants. Planning for household organic waste choppers as a solution for the environment for the manufacture of organic fertilizer materials as well as to reduce waste that is thrown away, and also the results of the enumeration are used for organic fertilizer on plants. This community service program involves partners and students of the Mechanical Engineering Study Program. The initial stage of this service activity is to conduct a survey to identify the problems faced by partners and conduct a literature study to obtain solutions to partner problems. After the solution to the partner's problem is obtained, the next step is to design and manufacture the machine needed, namely a household organic waste chopper. The household organic waste shredder which is transferred to partners is made as simple as possible, easy to operate and easy to maintain. With the existence of this organic waste shredder, it is hoped that it can help the Pesucen Village community in minimizing piles of organic waste that have a negative impact on the environment
Exploring Spatial Relationship Between Electrical Conductivity and Spectral Salinity Indices in the Mekong Delta
Authors:   University of Social Sciences and Humanities, Tran Thuong , Tran Duy , Pham Hoa , Truong Tuan , Trinh Hoanh , Nguyen Dung , Nguyen Binh , Nguyen Hanh
Published: February 2022

The negative impact of salinization concurrent with drought is a severe problem that creates challenges for agriculture in deltas and coastal lowlands. This study aims to investigate the spatial relationship among the field measured electrical conductivity (EC) and spectral salinity indices derived from Remote sensed data in the Mekong Delta using Geographically Weighted Regression (GWR). A wide range of Landsat 8 Operational Land Images (OLI) products, including single bands, band ratios, vegetation indices (NDVI and EVI), intensity indices (INT), and brightness indices (BI) were employed for computing salinity indices. The Kriging and Co-kriging interpolation techniques were used to estimate the spatial pattern of the field measured EC. Additionally, the Ordinary Least Square (OLS) regression were employed to characterize the relationship between single bands and EC measurement before applying the GWR for exploring the spatial correlation among the indices. There was a gradually increased of EC value from inland to coastal area. A significant relationship between EC measurement and spectral salinity indices and the highest correlation coefficient with p value less than 0.05 was found in EVI (r2 = 0.736). This study demonstrated that the GWR is germane to analyse the spatial correlation among the mentioned variables in the study area. Moreover, it also revealed that spectral salinity indices could be an alternative option for EC measurement in monitoring salt water intrusion at coastal areas.
Future Adaptability of Urban Trees due to the Effects of Climate Change: the Case of Artvin, Turkey
Authors:   Artvin Coruh University, Sari Derya , Karasah Banu
Published: February 2022

Global climate change began to affect urban and rural landscape planning decisions. The accurate and efficient use of plants that support urban green infrastructure would play an important role in these decisions. The present study aimed to determine the tolerance of domestic and exotic woody plant species planted in public spaces in Artvin province, Turkey to the effects of climate change. Thus, the tolerance of 59 most prevalent trees and shrubs identified in public spaces and natural fields in 12 sampling areas in Artvin province center, Hopa and Ardanuc district centers were surveyed. Findings of the regression model demonstrated that drought, cold hardiness and precipitation had an impact on the adaptability scores of the plants. The differences between the climate conditions in sample areas had an impact on the future adaptation and tolerance of the plants to climate change. This demonstrated that plant species in urban green areas will be affected not only by the global climate change but also by local climate conditions in the short and long term.
Assessment of Climate Hazards Using PRECIS Regional Climate Model (RCM): A Case Study in Cameron Highlands, Pahang, Malaysia
Authors:   Universiti Tunku Abdul Rahman, Suppiah Paveethira , Tan Kok Weng , Chin Kah Seng , Huang Yuk Feng
Published: February 2022

This study aimed to assess the differences in modelling disaster risks results when using historical precipitation and when using simulated precipitation associated with future Intergovernmental Panel on Climate Change (IPCC) climate scenarios. Subsequently, the relationship between climate change and climate hazards was analyzed in this study. The secondary data analyzed included historical precipitation (1983-2017), flood and landslide events records, and Providing Regional Climates for Impacts Studies (PRECIS) regional climate model (RCM):A1B, A2 and B2 scenarios. By comparing the historical precipitation data with the RCM scenarios, the results showed that the precipitation was correlated with A1B scenario (r= 0.695). The relationship between climate change and hazards was identified to be a positive correlation. The historical daily precipitation (1983-2017) showed a positive correlation with flood and landslide events (r= 0.530, r = 0.797, respectively). As for prediction of climate hazards, the RCM A1B, A2 and B2 scenarios showed correlations with flood event: r= 0.648, 0.384 and 0.417, respectively. Similar results were obtained for landslide and the RCM A1B, A2 and B2 scenario: r = 0.498, 0.751 and 0.654, respectively. Precipitation simulation by PRECIS RCM indicated increased levels of precipitation in the Cameron Highlands for the 2018 - 2069. Commensurate with this, great possibility of increasingly serious consequential hazards such as flood and landslide events are expected.
Towards a Balanced Assessment of the Viability of Nuclear Energy in the Philippines
Authors:   Ateneo School of Government, Yap Josef
Published: February 2022

Nuclear energy in the Philippines has been thrust into the spotlight by the administration of President Duterte. A committee created by Executive Order 116 was tasked to formulate a national position on a possible nuclear program. For nuclear energy to be a sustainable alternative, it must be accepted by society at large. Conventional wisdom surrounding the Bataan Nuclear Power Plant (BNPP) has branded this project as a white elephant leading to rejection of nuclear energy among a significant number of Filipinos, particularly members of civil society. This study presents evidence that the BNPP was operational at the time the administration of President Corazon Aquino decided to shut it down. Moreover, the risks related to the BNPP’s location are largely inconsequential. The BNPP became a white elephant because of an ill-advised political decision. Evaluating the viability of nuclear energy in the Philippines should therefore be balanced and deal solely with underlying technical and scientific issues, which are well known. Meanwhile, the role of nuclear energy in promoting a low-carbon society must be re-evaluated because of the sharp decline in the cost of variable renewable energy (VRE). If nuclear energy will eventually be incorporated in the plans of the Department of Energy (DOE), building a new large reactor would be too expensive. Two options are more feasible: revive the BNPP and/or invest in small module reactors (SMRs). Even if the latter has not yet been mainstreamed in the global energy market, SMRs are already on the radar of the DOE
Predicting the Natural Suitability of Teak (Tectona grandis L.f.) at Mae Yom National Park, Phrae Province, Thailand Using Logistic Regression Model
Authors:   Maejo University Phrae Campus, Kamyo Torlarp , Pattanakiat Sura , Asanok Lamthai , Samanmit Khanitin , Cherpaiboon Arnon , Thinkamphaeng Sathid , Marod Dokrak
Published: February 2022

The natural suitability of teak (Tectona grandis L.f.) at Mae Yom National Park, Phrae Province, Thailand was investigated using logistic regression. The study identified the relationship between key physical and soil properties with the presence of teak at natural sites, and applied a geographic information system platform to identify potential natural sites of teak. Fourteen variables were included in the model, five of these were found to have a significant effect (p < 0.05). Elevation was the most significant topographic variable, whereas magnesium, organic matter, potassium, and calcium were the most significant soil variables. The site prediction had 91.8% accuracy for identifying areas with high, moderate, and low probabilities of being suitable natural habitats for teak. These areas covered 87.63, 244.33, and 163.54 km2, respectively.
Occurrence and Habitat Use of Non-native Small Mammals in Upland Urban-Forest Environment in Northern Philippines
Authors:   University of the Philippines Baguio, Reginaldo Aris , Soriano Karen Claude , Iglesia Bernadette , Vertudes Ceszie
Published: February 2022

In the Philippines, few researches have been conducted about small mammals in urban areas at high elevation, where forests remain and non-native pest species can proliferate. Previous studies in Baguio City, Benguet Province reported three non-native species. This study extended these prior surveys by sampling in 13 localities, employing standard trapping method to document the distribution of species in an urban-forest setting. In 4,711 trap nights, 94 individuals were captured, consisting of four non-native species: Rattus exulans, Rattus tanezumi, Mus musculus, and Suncus murinus. Analysis of occurrence and relative abundance of species showed that small mammal distribution varied among the habitats, and appeared that variation may have been related to differences in vegetation structure or a habitat’s disturbance level. Rattus tanezumi was the most widespread, being especially common in backyard farms and in the public market. Suncus murinus was also widespread but less abundant than R. tanezumi. Rattus exulans was uncommon and restricted to certain area of a given habitat, particularly preferring weed-dominated areas. These suggest that non-native species are common and widespread in urban-forest setting but with apparent habitat preferences. The non-detection of native species is notable, suggesting that thorough studies can be done in the future.
INFLUENCE OF RED LASER RADIATION ON THE VIGOR OF TOMATO SEEDS AFFECTED BY AGING
Authors: Rivera-Talamantes Carlos Francisco de Jesús , Michtchenko Alexandre , Budagovsky Andrei , González-López Gabriela , Grosheva Ekaterina
Published: February 2022

The loss of vigour in tomato seeds (Solanum lycopersicum L.) due to aging is a normal condition. This study provides a future reference in regard to the possible applications pre-sowing of red laser radiation treatments on tomato seeds to improve the vigour of the aged seeds. The objective of the study was to analyse the effects of laser radiation on aged tomato seeds, on the rate of germination and growth. It is hypothesized that at least one treatment of red laser radiation could improve the seed vigour. Two groups of seeds were used, one with 11 years of aging and another with seeds aged 11 years plus 24 h of artificial aging. For the radiation, a red laser diode of 660 nm was used with a potency of 100 mW, at a radiation density of 0.2 mW cm-2, eight exposure times to the laser radiation and a control. The data were subjected to an analysis of variance and the means were compared with the Tukey test (HSD; p ≤ 0.05). In seeds with 11 years of aging, the laser treatment at 120 s improved seed vigour by 125 %, resulting from an increase in the growth of the radicle (167 %, p ≤ 0.05) compared to the control (100 %). On the other hand, the laser treatment at 60 s improved the tolerance to stress from artificial aging, the vigour index increased 143 % compared to the control (100 %), as a result of an improvement in germination of 162 % and in the hypocotyl growth (130 %, p ≤ 0.05), compared to the control (100 %). Red laser radiation on tomato seeds affected by natural or artificial aging can influence the processes of photo morphogenesis and increase seed vigour.
Breast Cancer Risk Analysis using Machine Learning
Authors: Adane Dattatraya , Kabra Laxmikant , Banode Akansha , Agrawal Mansi
Published: February 2022

When cells in and around breast are affected and damaged due to cancer, we call it Breast Cancer. It is commonlyfound among women and a very few men. Breast Cancer poses major health hazard and best way to handle itis to identify the symptoms as early as possible. Recently, Machine Learning techniques have been aggressivelyused by many researchers for different types of analysis and predictions in medical domain. In literature, BreastCancer classification and prediction through Machine Learning techniques, based on Breast Cancer WisconsinData Set, has come into picture many times. Typical attributes like radius, perimeter, tumour size (often fetchthrough X-Rays) apart from others, provides comprehensive inputs for the prediction process, often at a laterstage. However, till date, work on evaluation of the Risk of Breast Cancer is quite limited. We have worked onthe problem of risk prediction of breast cancer on the basis of self-assessed parameters, to find if the patient islikely to get the disease, at a very early stage. Risk evaluation / prediction tries to identify if a person is at riskof getting infected with disease. Risk analysis can not only save money but also enable the patient to undertakecourse correction in terms of food intake and medication, before it is too late. In this paper we present our analysisbased on well-defined parameters, discuss our results and then compare those results with one other similar work.
SMART VIRTUAL PAINTER
Authors: Assudani Purshottam , Kadu Rakesh , Chandak Ashish , Agrawal Varunesh , Khandelwal Sanskar , Singahvi Hardik
Published: February 2022

The main goal of computer vision is to recognize different objects of various size, shape and position. The majorchallenges faced by computer vision are the illumination and the viewpoint of the object, concerning this multiplestudies on detecting and recognizing objects that showed a high level of accuracy and precision on these tasks. toused for object detection online the proposed work allows the user to track the movement of any cultured objectof his/her choice. The user has the ablity even choose the colors of his choice to be displayed by running theconcerned application, the camera is activated thus enabling the user to draw in the air just by waving the trackerobject. The drawing part that is concerned is also simultaneously visible on the white window. The instructorcan choose any color of his choice as his need displayed above to draw and also can clear the screen when needed.OpenCV and python are used to build this application using computer vision techniques
Investment Analysis on the Development of Polymer Modified Bitumen (PMB) Production Plant to support the building of Indonesia Infrastructures
Authors:   School of Business and Management, Institut Teknologi Bandung, Indonesia, Riyadi Sugeng
Published: February 2022

Indonesia is one of the countries that focuses on infrastructure development to support the areas of connectivity and accelerate economic growth while maintaining the global commitment to GHG emission reduction. In order to support the above objectives, competitive bitumen prices with less GHG emissions are foreseen for the infrastructure’s development. Polymer Modified Bitumen (PMB) is one of the materials that is used for the pavement application that could provide 16.99% less GHG emissions compared to the unmodified bitumen due to their capability to provide similar performance with the thinner pavement layer requirement. There are 3 common PMB production processes recognized in the industry, such as Low Shear Mill Technology, High Shear Mill Technology, and Mobile PMB Plant. The Capital Budgeting technique (NPV, IRR, Profitability Index, Payback Period), internal and external analysis such as PESTEL and Porter’s five forces analysis are used to support the decision making for the right technology selection for the PMB processing plant in order to stay competitive in the Bitumen market. The economic analysis has shown that the low shear technology generates an NPV of IDR 186.573.816.286 with an IRR of 75,90%, the high shear technology generates an NPV of IDR 179.179.736.676 with an IRR of 62,39% and the mobile PMB plant generates an NPV of IDR 243.276.282.784, with an IRR of 68,37%. In addition to the highest NPV, the mobile PMB plant has the full flexibility to be mobilized to any project location, especially in remote areas where other production technologies are not available. Based on the above analysis, the mobile PMB plant is the right technology to be selected for the PMB provision to support the infrastructure development in Indonesia.
Knowledge, Attitude and Perception Regarding COVID-19 Infection Control: A Cross-Sectional Study among Dentists in Bangalore City, India
Authors:   Department of Public Health Dentistry, M. R. Ambedkar Dental College and Hospital, Bangalore, India, P. Chandran Dr Manjusha
Published: February 2022

Objectives: The dental profession is one of the occupations at the highest risk of SARS-CoV-2 infection because of the involvement of aerosol-generating procedures. The aim of this study was to assess the knowledge, attitude, and perception of dentists regarding COVID19 infection control in Bangalore city. Methods: A cross-sectional study was conducted among dentists in Bangalore city using an online questionnaire. The questions were related to socio-demographic data and the knowledge, attitude and perceptions of the dentists towards COVID-19 and infection control during dental practice. A sample size of 254 dentists was obtained after duration of 2 months. Descriptive statistics were performed and the data obtained were presented in the form of graphs and tables Results: The study included 254 participants (188 females and 66 males) majority of whom belonged to an age group of < 30 years (78.3%). A total of 209 (83.3%) of the study participants have completed a master’s degree in dentistry. Among 254 dentists, 141 (55.5%) of them had received training regarding infection control in dentistry while only 102 (40.2 %) of them had attended any training regarding COVID-19. Majority of the dentists were aware about the symptoms, modes of transmission, diagnosis, risk identification and important measures for prevention of COVID-19 transmission. Most of the dentists perceived COVID-19 as a serious public health issue (85.4%). Conclusions: The study has shown an acceptable level of awareness and preparedness among the dentists working in Bangalore city considering the aim of the study. However, SARS-CoV-2 infection is a novel disease and is yet to be fully explored. Adequate research has to be carried out to shed light on the unexplored areas regarding COVID-19 and infection control.
A configuração do conteúdo Lutas na Educação Física escolar: análise dos contextos espanhol e brasileiro (Content configuration Combat Sports in school Physical Eeducation: analysis of spanish and brazilian contexts) (La configuración de contenidos de Luc
Authors: Lise Riqueldi Straub , López-Gil José Francisco , Cavichiolli Fernando Renato
Published: February 2022

O objetivo deste estudo é, em uma perspectiva comparada, compreender as diferenças e semelhanças acerca da efetividade do conteúdo Lutas nas aulas de Educação Física da Espanha e do Brasil. Para tanto foram analisadas as principais legislações que regulamentam os currículos escolares de ambos os países; o Real Decreto, na Espanha, e a Base Nacional Comum Curricular, no Brasil. Em complemento a essa análise documental foram elencadas algumas pesquisas correlatas ao tema, cujo propósito consiste na verificação do cumprimento das normativas legais acerca do conteúdo de Lutas nas escolas. Notou-se, a partir das fontes selecionadas para este estudo, que existem, nos dois países, legislações robustas preconizando o ensino de Lutas nas aulas de Educação Física. No entanto, algumas pesquisas apontam para o fato de que esse conteúdo raramente está presente nas aulas de Educação Física, devido a alguns fatores restritivos, tais como: falta de estrutura, incapacidade dos professores, vinculação com violência.
Resistencia cardiorrespiratoria y características morfológicas en jugadores de goalball (Cardiorespiratory fitness and morphological characteristics in goalball players)
Authors: Godoy Cumillaf Andrés , Fica Ramírez Nicolás , Fuentes Merino Paola
Published: February 2022

Dentro de las actividades deportivas que practican las personas con discapacidad visual se encuentra el goalball, deporte que ha tenido una gran masificación en el mundo entero, sin embargo la información sobre los beneficios que trae para la salud de quienes lo practican es aún limitada. El objetivo de esta investigación es generar información de la resistencia cardiorrespiratoria (RCR), características morfológicas, de personas discapacitadas visuales que practiquen este deporte. Se trabajó con una muestra de 34 deportistas discapacitados visuales. Las variables estudiadas fueron, RCR, composición corporal, índice de masa corporal (IMC), índice cintura-cadera (ICC). Los resultados indican que la muestra estudiada presenta para RCR valores de 33.6 mililitros por kilogramo de peso por minuto, un 29,6% para el componente adiposo, un 42.6% para el muscular, un somatotipo de 4.8 – 5.3 – 1.5, un IMC de 25.6 y un ICC de 0.9. En conclusión, los discapacitados visuales evaluados que practican goalball presentan adecuados valores de RCR. Se sugiere la realización de ensayos clínicos con esta población para determinar los efectos que trae este deporte en la salud de quienes lo practican. 
Summary Within the sports activities practiced by people with visual disabilities is goalball, a sport that has had a great massification throughout the world, however the information on the benefits it brings to the health of those who practice it is still limited. The objective of this research is to generate information on cardiorespiratory fitness (CRF), morphological characteristics, of visually impaired people who practice this sport. We worked with a sample of 34 visually impaired athletes. The variables studied were, CRF, body composition, body mass index (BMI), waist-hip ratio (WHR). The results indicate that the studied sample presents for CRF values ​​of 33.6 milliliters per kilogram of weight per minute, 29.6% for the adipose component, 42.6% for the muscle, a somatotype of 4.8 – 5.3 – 1.5, a BMI of 25.6 and an ICC of 0.9. In conclusion, the evaluated visually impaired who practice goalball present adequate CRF values. Clinical trials with this population are suggested to determine the effects of this sport on the health of those who practice it.
Diferencias en las acciones defensivas y ofensivas de porteros clasificados y no clasificados a la Copa del Mundo FIFA 2018 (Differences in defensive and offensive actions of qualified and non-qualified goalkeepers at the 2018 FIFA World Cup)
Authors: Mercado-Hernández Valentín , Duclos-Bastías Daniel , Giakoni-Ramírez Frano
Published: February 2022

El estudio de las acciones ofensivas y defensivas del portero requiere especial atención para lograr identificar los indicadores de rendimiento y el éxito de la ejecución de las acciones de porteros en el fútbol. Del mismo modo, se debe poner énfasis en evidenciar parámetros acerca de la importancia del nivel del equipo sobre el éxito de las acciones del portero. El objetivo del presente trabajo es conocer las acciones ofensivas y defensivas que realizan los porteros y determinar si se presentan diferencias entre porteros de selecciones nacionales clasificados y no clasificados a la fase eliminatoria de la copa del mundo de la FIFA Rusia 2018. Se analizaron 48 partidos de la competición. Los resultaron mostraron que se realizó una mayor ejecución de acciones ofensivas (n = 2213) que defensivas (n = 1419). Los porteros de selecciones clasificadas obtuvieron valores altos en blocaje medio (M = 1,02 ±1,21), pase (M = 5,20 ±5,07) y pase con balón en movimiento (M = 2,55 ± 2,11) mientras que los porteros de selecciones no clasificadas obtuvieron valores altos en blocaje bajo (M = 2,25 ±1,78) y saque (M = 5,). Se obtuvieron diferencias significativas (p > 0,05) en las variables de reducción de espacio, balon suelto, blocaje en dos tiempos, despeje y pase. 
Abstract. The study of the goalkeeper's offensive and defensive actions requires special attention in order to identify performance indicators and the success of the execution of goalkeeping actions in football. In the same way, emphasis should be placed on evidencing parameters about the importance of the level of the team on the success of the goalkeeper's actions. The aim of this study is to know the offensive and defensive actions performed by goalkeepers and to determine if there are differences between goalkeepers of national teams qualified and not qualified for the knockout phase of the FIFA World Cup Russia 2018. Forty-eight matches of the competition were analysed. The results showed that more offensive (n = 2213) than defensive (n = 1419) actions were performed. Goalkeepers of ranked teams obtained high values in medium blocking (M = 1.02 ±1.21), passing (M = 5.20 ±5.07) and passing with ball in motion (M = 2.55 ± 2.11) while goalkeepers of unranked teams obtained high values in low blocking (M = 2.25 ±1.78) and serving (M = 5,). Significant differences (p > 0.05) were obtained in the variables of space reduction, loose ball, two-time blocking, clearance and passing.
Niveles de Ansiedad Rasgo y Bienestar en jugadores de fútbol profesional de Chile durante la cuarentena por COVID-19 (Levels of Trait Anxiety and Well-being in Chilean professional soccer players during the COVID-19 quarantine)
Authors: Ortiz Marholz Paula Francisca , Valenzuela Contreras Luis Marcel , Barrera Diaz Joel
Published: February 2022

En respuesta a la aparición del COVID 19 y la pandemia ocasionada, los países tomaron medidas para manejar las curvas de infección. Han obligado a permanecer en confinamiento y esta estrategia afectó a diversos contextos, dentro de los cuales, se encuentra el ámbito deportivo, suspendiendo competiciones, partidos oficiales, entrenamientos en cancha, transmisiones deportivas, etc. Sin embargo, en el caso de los profesionales del fútbol, se mantuvieron en preparación física a través de plataformas tecnológicas. El objetivo de este trabajo es explorar los niveles de ansiedad rasgo, de sensación de bienestar y la relación entre ambas variables en futbolistas profesionales de cuatro clubes de Chile con el fin de contribuir al diagnóstico sobre cómo la crisis de Covid-19 puede haber afectado a la realidad deportiva en cuanto a la salud mental y emocional. Para ello se aplicó el STAI y el PERMA. Como resultados, los futbolistas investigados muestran niveles promedio de ansiedad rasgo y buen nivel de bienestar general. También se encuentra correlación entre ambos. Este estudio permite concluir que si bien la situación actual puede verse como amenazante, mantener las condiciones laborales y en actividad para un deportista parece ser clave para sentir cierto grado de control frente a la incertidumbre, así como estrategias de afrontamiento que permitan tener una alta sensación de bienestar.
Abstract. In response to the emergence of COVID 19 and the resulting pandemic, countries took steps to manage infection curves. They have forced them to remain in confinement and this strategy affected various contexts, within which is the sports field, suspending competitions, official matches, training on the field, sports broadcasts, etc. However, in the case of soccer professionals, they remained in physical preparation through technological platforms. The objective of this work is to explore the levels of trait anxiety, feeling of well-being and the relationship between both variables in professional soccer players from four clubs in Chile in order to contribute to the diagnosis of how the Covid-19 crisis may have affected sports reality in terms of mental and emotional health. For this, the STAI and PERMA were applied. As results, the investigated soccer players show average levels of trait anxiety and a good level of general well-being. There is also a correlation between the two. This study allows us to conclude that although the current situation can be seen as threatening, maintaining working and active conditions for an athlete seems to be key to feeling a certain degree of control in the face of uncertainty, as well as coping strategies that allow having a high sensation of wellness.
Las prácticas evaluativas de los docentes de educación física en Villavicencio (Evaluation practices of physical education teachers in Villavicencio)
Authors: Talero Edgar , Guarnizo Nicolás
Published: February 2022

Se hace una descripción de los instrumentos evaluativos que implementan los docentes de Villavicencio a la hora de evaluar aprendizajes. El objetivo de este estudio quiso determinar cuáles son esas prácticas evaluativas que implementan los docentes del área en la ciudad, especialmente el seguimiento a los estudiantes con dificultades de aprendizaje motriz, pues es necesario entender si la evaluación formativa se aleja de la mirada tradicional de clasificar individuos, entre quienes tienen las condiciones y quienes no las tienen, pues la evaluación es un proceso de comprensión y mejora tanto de la enseñanza como del aprendizaje. El tipo de estudio que se implementó fue un enfoque cualitativo y la metodología descriptiva, debido a que se buscaba un conocimiento directo de la realidad, a través de las observaciones que los investigadores realizaron durante las salidas de campo, en las cuáles indagaron el tipo de prácticas evaluativas que los docentes de educación física. Con esta investigación se logró establecer que los docentes no diseñan instrumentos de evaluación que les permitan hacer un seguimiento a los estudiantes que presentan dificultades de aprendizaje.
Abstract. A description is made of the evaluative instruments implemented by Villavicencio teachers when evaluating learning. The objective of this study was to determine what evaluation practices are implemented by teachers in the area in the city, especially the follow-up of students with motor learning difficulties, since it is necessary to understand if the formative evaluation moves away from the traditional view of classifying individuals, between those who have the conditions and those who do not, since evaluation is a process of understanding and improvement of both teaching and learning. The type of study that was implemented was a qualitative approach and descriptive methodology, because a direct knowledge of reality was sought, through the observations that the researchers made during the field trips, in which they investigated the type of evaluative practices than physical education teachers. With this research it was possible to establish that teachers do not design evaluation instruments that allow them to monitor students with learning difficulties.