bluuebunny/crossref_metadata_2025 huggingface dataset:
Information Interventions and Postsecondary Enrollment: Evidence from Appalachian Ohio
Authors: Wallace Cullen T.
Published: August 2021

This paper examines a series of high school-level interventions designed to encourage college attendance in a historically underperforming region, Appalachian Ohio. High schools received competitive grants to combat information frictions regarding postsecondary enrollment—through campus visits, college fairs, financial aid seminars, etc. I estimate the effect of these competitive grants on postsecondary enrollment. Only Appalachian high schools were eligible for the program, and I exploit this policy-induced variation in treatment allocation to compare college attendance rates for high schools that received funding and similar, non-Appalachian high schools that were ineligible for the program using a difference-in-differences framework. Leveraging multiple datasets and treatment specifications, I document two findings: i) while college attendance generally rose during treatment, no evidence indicates that the grants increased attendance relative to similar yet untreated schools and ii) there is no evidence that attendance patterns shifted to higher-quality institutions.
Analisis faktor lingkungan terhadap kejadian kecacingan pada murid Sekolah Dasar di Kelurahan Seberang Tembilahan Kabupaten Indragiri Hilir
Authors: Paridah Paridah , Zahtamal Zahtamal , Putra Ridwan Manda
Published: August 2021

This study aims to analyze the influence of physical environmental factors (clean water facilities, latrine conditions, SPAL conditions, type of house floor, household waste management), economic factors (family income) and social environmental factors (nail hygiene, use of footwear, washing habits hands with soap, bowel habits) against helminthiasis in elementary school students in Seberang Tembilahan Village, Indragiri Hilir Regency. The research location was conducted in Seberang Tembilahan Sub-District, Indragiri Hilir Regency in January to February 2020. The study used a survey method. The analytical method used is univariate analysis, bivariate analysis with Chi Square (Fisher) and multivariate analysis with logistic regression. The results of the study of 72 elementary school students in 4 elementary schools who were examined by laboratory feces, found positive results of worm infestation of 23.61% or 17 students. The final results of the model test showed that although the clean water facilities and toilet conditions were not significant, the two variables influenced each other, it was possible that there was an interaction between the two variables in influencing the incidence of helminthiasis in elementary school students. The variable that most affected the incidence of helminthiasis in elementary school students was the latrine condition with adjusted OR of 4.01 so that respondents whose conditions did not meet the requirements were 4.01 times more likely to experience helminthiasis compared to conditions that were eligible after being controlled by other variables. Simultaneously the two variables (clean water facilities and latrine conditions) can explain the variation of helminthiasis in elementary students by 9.9%.
Endurance development for 10-12 & under tennis players
Authors: Unierzyski Piotr , Bogusławski Mieczysław
Published: August 2021

Within classical definition endurance is understood as the ability to perform hard or long-lasting physical activities involving large muscle groups, without the fast increase in fatigue and changes in inner environment of the organism. This definition also includes the strain tolerance and the ability of recovery (Astrand 1987, Kozłowski & Nazar 1999). This definition suits well into such sports like long-distance running, swimming, Nordic skiing, and so mostly “cyclic” sports. For these sports endurance is a factor limiting performance and there is almost a linear correlation between level of endurance and sport performance.
Circuit training for 10 and under tennis
Authors: Gonzales Richard
Published: August 2021

Coaching or presenting a task in a circuit or station formats for U10 players consists of a session of some 8-12 stations which can be completed roughly three times. The circuit may aim at the development and stimulus of both condition capabilities (strength, speed, endurance, flexibility), as well as coordination capabilities. This format assures variability in the game session.
Professional knowledge of tennis coaches
Authors: Cortela Caio , Milistetd Michel , Galatti Larissa , Crespo Miguel , Balbinotti Carlos
Published: August 2021

The role played by the coach, an emerging profession in terms of importance, is key to the growth of sport regardless of the sport in question. This study presents the most valued professional insights for tennis coaches, in order to contribute to current research, which can assist the institutions responsible for training coaches in promoting meaningful activities, which are close to the interests of the learner.
Mindfulness and tennis performance: A review of literature and practice
Authors: Yousuf Shameema
Published: August 2021

Mindfulness practice has grown exponentially in more recent times out of two schools of thought: Eastern Bhuddist meditative practice which has been popularised by Kabat-Zinn and colleagues (Kabat-Zinn, 2003), and a Western approach developed by Langer and colleagues (Langer, 1989). Adaptations of both Eastern and Western practices have been utilised by sport psychology practitioners as an alternative to psychological skills training. There have been some practices that combine mindfulness with psychological skills training when assisting athletes in optimising performance (Baltzell, McCarthy & Greenbaum, 2014). Indeed, mindfulness is associated with positive psychology and wellbeing. The paper reviews some of the literature in the Eastern practice, the practice of mindfulness in sport environments, and will highlight some of the interventions undertaken in tennis.
Tennis: a promising approach to family-centered physical activity and health promotion
Authors: Dombrowski Nicholas , Hanson Jennifer
Published: August 2021

Despite global goals to reverse the prevalence of obesity and inactivity, little to no progress has been made.  This article presents the details of a tennis-based, family-centered program that can serve as a model for future wellness interventions.  The program succeeded in providing a source of physical activity for the children and adults involved.  Participant feedback confirmed that the program was well received and that an expanded program would be feasible.  Tennis appears to be a viable platform for health promotion, and tennis professionals looking to build partnerships for the purpose of growing the game should keep in mind potential public health stakeholders.
Development and implementation of a mental development programme for young elite tennis players
Authors: Rome-Gosselin Maxime
Published: August 2021

This study was conducted with two young Canadian elite tennis players. An eight-week practical work was conducted with the aim of acquiring new knowledge in sports psychology, and then applying these notions in several competitive situations. Specifically, we focused on the control of thoughts during the 25-second break between rallies. The players were taught a specific mental routine that they had to perform between each point. In terms of results, there was a very interesting trend after analysing the data collected. When players did not perform their pre-set routine before a rally, they had more than 50% chance of losing the next point by making an unforced error.
The junior coach tournament attendance dilemma: How willing are parents to pay coaches to attend matches?
Authors: Horne Edward
Published: August 2021

Many tennis coaches are paid by the hour. Unfortunately, this pay structure can contribute to poor coach attendance at tournaments. This study sought to determine whether parents would be willing to pay coaches to attend tournaments. Findings show a willingness on the behalf of parents to pay. This has implications for how coaches may reduce the financial burden of forgoing a weekend’s coaching, while potentially enhancing athlete development.
MEASUREMENT UNCERTAINTY OF FRACTURE TOUGHNESS KIC TEST
Authors: FABRICIO Daniel Antonio Kapper , TREVISAN Lisiane , STROHAECKER Telmo Roberto
Published: August 2021

Quality monitoring of production processes, from raw material to final product, enables decision-making and quality assurance of the product. The KIC value is a property of brittle metallic materials, which present limited amount of plastic deformation at the crack tip under linear-elastic conditions. In the field of ​​mechanical testing, it is important to obtain fracture toughness properties, including KIC parameter, because the oil and gas industry requires high performance materials even in severe conditions. The Guide to the Expression of Uncertainty in Measurement (GUM) represents a methodology for the estimation of measurement uncertainty in quantitative tests, and is based on the law of propagation of uncertainties. This work presents the deployment and application of GUM steps in the estimation of the KIC measurement uncertainty. The results were analyzed in order to check which sources contributed most to the combined uncertainty, concluding that the largest contribution was due to the variability between specimens. We expect, with this work, to encourage other laboratories to implement GUM for fracture toughness tests, and also to fill a literature gap in this field.
ALKALIZING AGENT INFLUENCE ON THE CeO2 CATALYST SYNTHESIS AND PROPERTIES
Authors: DE OLIVEIRA Matheus José Cunha , QUIRINO Max Rocha , DE ARAÚJO Magna Silmara Oliveira , MELO Oscar Borges , GAMA Lucianna
Published: August 2021

Cerium oxide is an important catalyst used in several reactions as electrolytes in fuel cells, UV absorber and oxygen sensors. The objective of the present work is CeO2 catalyst synthesis by microwave hydrothermal method and then evaluate the influence of NaOH, NH4OH and urea as alkalizing agents in the catalyst properties. The results showed that it was possible to obtain the monophasic catalyst only when using NaOH and NH4OH as precursors; the first presenting greater surface area (141.09 m2.g-1) and higher pore volume. It was concluded that using urea as alkalizing agent synthesis conditions were not sufficient for monophasic cerium production.
EVALUATION OF ANTIOXIDANT ACTIVITY OF PHENOLIC COMPOUNDS PRESENT IN LIPPIA SIDOIDES CHAM LEAVES
Authors: CARLOS Thayrine Dias , FRANCISCO Welington , GUIMARÃES Luiz Gustavo de Lima
Published: August 2021

Several chemical, pharmacological and clinical studies have enabled phytochemical area developed a many drugs used today, such as aspirin, digitoxin, morphine, quinine and pilocarpine. In addition, this area has enriched and expanded numerous species of plants with medicinal potential, resulting in the isolation of substances with diverse biological activities that serve as prototypes for future drugs. This study aims to explore the potential of the species Lippia sidoides, quantifying the content of phenolic compounds from the methanol extract of the leaves, as well as evaluating the antioxidant activity. For chemical research, we used the spectrophotometric method of Folin-Ciocalteau using gallic acid as standard, which allowed determining a level of 126.89 ± 23.08 mg of gallic acid/g extract for total phenolic compounds by the Folin-Ciocalteau’ methods, a value within the patterns found in the literature. When evaluated the antioxidant activity by methods of inhibiting free radical DPPH (2,2- diphenyl-1-picrylhydrazyl), oxidation of linoleic β-carotene/linoleic acid system and reducing power, the results showed 90% inhibition for the first two methods and a good ability to donate electron to the latter method. This results show the potential that this plant has as a source of antioxidant compounds and the need to further explore the phytochemical studies on this species.
JURY SIMULATED AS PROPOSED FOR THE APPROACH OF FUELS IN ELEMENTARY EDUCATION
Authors: ANDRADE Ana Maria Rodrigues , SILVA Suzana Pedroza da , MORAIS Carina Siqueira , SIMÕES NETO José Euzebio
Published: August 2021

Fuels are materials that possess the ability to release energy when there is change in the chemical structure, and are part of everyone's life in society, including students of basic education. This work aims to analyze the potential of teaching strategy Jury Simulated in the construction of chemical knowledge on fuels approach, in perspective of development conceptual, procedural and attitudinal. The survey was conducted in a municipal public school in the city of Carnaíba, countryside of Pernambuco, in Primary Education II, using as main pivot axis of a fictional case study about the closing of a gas station. To obtain the data, was use as research tools: notes the observation of the field during the course of the jury and interviews with students. After completion of the jury, students demonstrated arguments and more profound chemical knowledge on the subject, and prove motivated and interested throughout the process. It was concluded that the simulated jury performed in a powerful didactic and methodological strategy, effective and interesting for addressing chemical knowledge related to the daily lives of students, in case the fuels, issue not yet worked in recreational activities in chemistry teaching.
PRELIMINARY STUDY FOR A CLEANING AND WATER REUSE SYSTEM
Authors: Pezzini Alessandra , Brião Vandré B , DE BONI Luis A. B.
Published: August 2021

Recent events related to the lack of water in Brazil demonstrated that the reuse of water is an issue that needs to be explored. In the present study, research was conducted to determine a source of domestic water that can be treated and reused with simple equipment, produced by national industry, or available in the domestic market. It was selected the treatment of the bathwater from the shower. The results of the parameters analyzed, pH, conductivity, color, turbidity, COD, phosphorus, total suspended solids, oil and grease, bacteria, total nitrogen, ammonia nitrogen, and total coliforms indicates that the model used needs adjustments, odor removal, and optimization of the effluent residence time in the treatment tank. Corrected these inconsistencies the system could be converted into a product for domestic use in regions where there is a shortage of water.
SYNTHESIS OF 2,3-DIHYDRO-1H-1,5-BENZODIAZEPINES CONTAINING THE 8- HYDROXYQUINOLINIC FRAGMENT
Authors: MARRUGO-GONZALEZ A. Jose , ORLOV V. D. , FERNANDEZ-MAESTRE Roberto
Published: August 2021

Benzodiazepines are used as anxiolytic, hypnotic, sedative, and antidepressant drugs and to treat anxiety, insomnia, and epileptic seizures and show other types of biological activities. In this study, ten new 4(2)-(8-hydroxyquinolinil-5)-2(-4)-aryl-2,3-dihydro-1H-1,5-benzodiazepines and their rearrangement products, 2-substituted benzimidazoles, were synthesized from 1-aryl-3- (8-hydroxyquinolinil-5) propenone-1 (-3) and ophenylenediamine in methanol-triethylamine (1:1) solution. The reaction between the diamine and chalcones containing the 8-hydroxyquinoline fragment was carried out under mild conditions by base-catalysis amination of the β-enonic fragment of the chalcones followed by cyclo condensation. The structures of these compounds were studied by spectroscopic methods (IR and 1H-NMR) and their chelating properties were demonstrated. We calculated and discuss their theoretical biological activity and the influence of metal chelation on the electron
acceptor hydroxyquinolinic fragment on the electronic spectra.
NATURAL TREATMENT SYSTEMS FROM THE POINT OF DIDACTICS
Authors: KUPATADZE Ketevan , KIZILOZ Burak
Published: August 2021

All the issues related to environmental ecology, and, among them, Natural Treatment systems, obtain particular importance now, in the 21st century. It is very important to start delivering classes on NTS, the natural chemical processes, and pollution agents, at schools and universities. As a case study, the article discusses the methodology of teaching NTS at University and school levels. The methodology is orientated on the realization of some important didactic principles in the teaching process which is a very effective tool for increasing students’ motivation to learn. For comparative analysis, there will be used the experience of two neighboring countries - Greece and Turkey, to better understand the NTS applications in reality. The article has described the scenario of lectures and laboratory work which is taking place at Ilia State University, within the scopes of the courses: Ecological Chemistry and Eco-tourism. To increase the level of the popularity of NTS, it will be a good experience to organize on-site lectures at the places where NTS is functioning. The outcome of the pedagogical experiment has made it clear, that such a method of teaching of NTS affects positively students motivation and changes their attitude towards the environmental pollution
CELLULOSE NANOCRYSTALS FROM UNDERUTILIZED POLYTHIA LONGIFOLIA SEED
Authors: ADEWUYI Adewale , PEREIRA Fabiano Vargas
Published: August 2021

Polythia longifolia seed (PL), an underutilized seed in Nigeria was used as a starting material to prepare Polythia longifolia cellulose nanocrystals (PLN). Polythia longifolia cellulose (PLC) was first isolated and subjected to sulfuric acid hydrolysis followed by ultrasonication and homogenization. PL, PLC and PLN were characterized using Fourier transformed infrared (FTIR), x-ray diffraction (XRD), thermogravimetric analysis (TG) and scanning electron microscopy (SEM). PLC and PLN were evaluated for their heavy metal adsorption capacity, swelling capacity, water holding capacity and oil holding capacity. SEM images reveal elliptical granules of PLN while XRD shows a mixture of polymorphs of cellulose I and cellulose II. PLN displayed a better water holding, oil holding and swelling capacities. PLN also exhibited a higher adsorption capacity towards Cu2+ and Pb2+ ions than PLC. The results showed that Polythia longifolia seed can serve as a potential source of cellulose nanocrystals which might be useful in other applications.
THALLIUM (I) AND CAESIUM ION EXCHANGE ON THE “FERROCINUM” DRUG AND ON THE COMPOSITE MATERIAL BASED ON “FERROCINUM”
Authors: BULATOVA Margarita A. , SINIAKOVA Maria A.
Published: August 2021

It was determined that the drug "Ferrocinum” and the ferrocinum-based composite material efficiently extract ions of thallium (I) and caesium. The dependence of the exchange capacity from the extracted ions concentration in solution is presented.
PRINCIPAL COMPONENT ANALYSIS FOR SELECTION OF VARIABLES IN HOMOGENEITY AND STABILITY TESTS APPLIED TO PROFICIENCY TESTING SCHEMES
Authors: ALBANO Filipe , CATEN Carla ten , ANZANELLO Michel
Published: August 2021

Proficiency Tests (PT) based on interlaboratory comparisons are activities aimed at assessing the technical competence of laboratories in carrying out specific measurements. The analyses of homogeneity and stability of prepared samples are an important step in ensuring the reliability of the comparison rounds, since improper selection of the parameter to carry out this evaluation can influence the promoted comparison. This paper proposes a method for selecting the most relevant variables aimed at improving homogeneity and stability tests in PT. For that matter, the approach relies on a variable importance index derived from Principal Components Analysis (PCA) parameters. The proposed method was applied to three different PT schemes (beverage, water and coal) in Brazil. Results indicate that the use of PCA was adequate to help the variable selection of homogeneity and stability tests in PT schemes. The selected subset of variables was corroborated by experts in the PT schemes analyzed.
SAMPLING PLAN FOR QUALITY MONITORING OF SUPPLIERS OF THE SANITATION SECTOR
Authors: INTIMA Danielle Polidorio
Published: August 2021

In order to produce water for human consumption, processes must be used that allow the removal of impurities present in the water to be treated. For this, alkalinizing chemicals, coagulants, disinfectants and others are added. Any product used in the treatment of water must promote its potability unconditionally, without the risk of transfer of any contaminant to the treated water. The quality control of these products is based on the performance of laboratory tests, which should not be restricted to the determination of the concentration of the active principle, ie, this monitoring should also include the determination of toxicity parameters present in the process inputs to ensure that the water produced meets the parameters required by the legislation. The problem is that not every sanitation company has dedicated laboratories to perform the amount of testing involved in this monitoring. Therefore, this work proposes a sampling plan for quality control of the chemicals used in water treatment. The main advantage of this statistical tool is the viability of monitoring the toxicity parameters of these products, without the need to increase the cost of this process.
QUALITY ASSURANCE OF ANIONS ENVIRONMENTAL MONITORING IN IPEN S ENVIRONMENTAL MONITORING PROGRAM
Authors: VILLA Sabrina Moura. , STELLATO Thamiris Brandino , MARQUES Joyce Rodrigues , FAUSTINO Mainara Generoso , SILVA Douglas Batista , MONTEIRO Lucilena Rebelo , DA SILVA Tatiane B. S. Carvalho , COTRIM Marycel E. Barbosa , PIRES Maria Aparecida F.
Published: August 2021

This work aims to assess the internal and external quality control of the anion analysis, accomplished at IPEN, using chromatography technique ions and Statistical Methods for data analysis. So it was possible to conclude that the system is over control, generating reliable results
FIRST DEGREE POLYNOMIAL FITTING FOR FORCES AND MOMENTS ON THE AERODYNAMIC TEST MODEL
Authors: BARBOSA Itamar Magno , SISMANOGLU Bogos Nubar , OLIVEIRA Pedro Ivo Pinto
Published: August 2021

We analyzed a multivariate polynomial model related to Calibration Curve of an External Balance of Aerodynamic Forces. The ISO 17025 explicit that it is not always possible to calculate rigorously the measurement uncertainty in Test Laboratories. The test nature circumscribes error sources control, time and costs. This fact implies that choosing a Mathematical Modeling is also an affair of productivity management, not only a computational matter. For a First Degree Polynomial Modeling we evaluated the Statistical Performance Index, as to Measurement Bias, Standard Uncertainty, X – Square and Uncertainties and Co – Variances Matrix. We evaluated the Measurement System Repeatability through successive resembling Calibrations. We showed Aerodynamic Forces that may be considered individual ones trough uncertainties and systematic errors. In the same way, bias was verified through systematic error analysis, i. e., in what conditions the polynomial intersects at the origin or not.
REVIEW OF CONTAMINATION IN CEMETERY SOIL BY CEMETERY SLURRY
Authors: SALVADOR Marcos Luis , ORTIZ Janaína C.
Published: August 2021

The cemeteries have been present in the culture for many centuries. However, knowledge of the potential that is reported to contaminate the environment is more recent. Substances generated in the decomposition of human bodies may be potentially toxic, depending on their composition, however, the scientific study of the variables present in the cemetery is difficult because of the symbolic load it presents to society. Through a bibliographical survey, we tried to describe the possible contaminants generated by the putrefaction of bodies in cemeteries and the association that these cause. It was concluded that the ions adsorption capacity by soil is an important characteristic given by the clay fraction and qualification the soil as apt to receive cemetery activities.
EVALUATION OF THE QUALITY OF MANANTIAL WATER SUPPLYING THE CITY OF SALVADOR (BA)
Authors: ALVES Helena Maria Andrade , YAMANAKA Cristina Yassuko , AZCONA Miguel Angel Lobo , BRASIL Valter Alexandre , GARCIA Rui Jesus Lorenzo , MARTINS Djavã de Santana
Published: August 2021

Since 2011, the Centro de Pesquisas e Desenvolvimento - CEPED performs sampling and analysis activities of the waters of the springs that supply the city of Salvador to assess the Water Quality Index (WQI). The WQI is an important indicator of the relationship between use and land cover and water quality in a watershed. The purpose of this paper is to present a study of water quality of rivers Paraguaçu, Joanes, Jacuípe, Ipitanga, which are responsible for the water supply for the population of metropolitan region of Salvador with more than three million inhabitants and highest population density Northeast North. Through this study we can conclude that there is a decrease in water quality in nearby points of urbanized areas due to lack of sanitation, as well as in areas where there is impairment of riparian vegetation cover.
CONFORMATIONAL STABILITY ORDER OF ACYCLIC ORGANIC MOLECULES REVISITED: A COMPUTER-BASED PROJECT IN LEARNING STEREOCHEMISTRY
Authors: TANIA Lisa , SAPUTRA Andrian , SYAMSURI M. Mahfudz Fauzi , CANAVAL Lorenz R.
Published: August 2021

Learning stereochemistry today, especially on the topic of conformational stability, seems to generalize anti, gauche, eclipsed conformations as a general stability order for all acyclic organic molecules. This may be due to the fact that many organic chemistry textbooks only emphasis simple non-polar molecules, like propane or buthane, as examples to explain this topic omitting details for polar ones. This study proposes a simple computer-based technique as a project for students in learning stereochemistry. Applying this fast, open-source, and user-friendly software is highly recommended for promoting the concept and accurately predicting of conformational stability through computer-assisted experiment in the classroom.
KINETIC STUDY IN REMOVAL OF DYE IN AQUEOUS SOLUTION BY THE BABASSU COCONUT CHARCOAL MODIFIED WITH CITRIC ACID
Authors: SILVA Isabel do Nascimento , ALMEIDA Janiele Mayara Ferreira de , FERNANDES Nedja Suely
Published: August 2021

Dyes are among the class of compounds considered dangerous to aquatic flora and fauna, thus it is important to treat waste water contaminated by this substances. Among different treatment techniques, adsorption shows an efficient and inexpensive method for treating large amount of waste. Babassu coconut charcoal (BCC) arises as an alternative to charcoal production, because it is a quite biomass found in several of Brazil. The BCC was treated with citric acid and the babassu coconut charcoal modified with citric acid (BCCMod) was used in the adsorption tests with the methylene blue (MB). The results show that citric acid acted on the charcoal surface without being incorporated into their structure. The adsorption kinetics in this study is governed by the pseudo-second-order model, where the amount adsorbed in the equilibrium was 1.5424 mg g-1 agreement with the value calculated for this model 1.5625 mg g-1. Among the models employed in this study for adsorption isotherms, what better applied to the experimental data was the Langmuir model, with a correlation coefficient of 0.9870.
PREPARATION OF CREAM CHEESE WITH THE INSERTION OF STALKS OF VEGETABLES
Authors: SILVA Elen Vanessa Costa da , MARTINS Dyule Anne Correa , JUNIOR Ronaldo Melquides Monteiro Pimentel
Published: August 2021

The dairy market is growing rapidly due to its significant production and nutritional composition of bovine milk. With the objective of adding value to the milk, the research had as objective to elaborate a cheese called cream cheese curd added with stalks of vegetables such as jambu, coriander, cabbage and condiments. Two samples of cream cheese curd were prepared with vegetable stalks in different amounts. After preliminary tests of sensory analysis the best formulation was chosen, in which the physical and chemical analyzes were performed. We also applied the tests of preference, purchase intention and consumption intention, besides the calculation of income and cost. In the physical chemical analyzes the following values for moisture were obtained: 67.1935%, lipids: 56.9106%, proteins 11.9873%, Carbohydrates 2.6461%, acidity 0.71% and fixed mineral residue 2.4501%. In the microbiological analyzes there was no contamination. In the sensorial 62% of the judges preferred the sample with greater amount of stalks. The value found for the yield was relatively high due to the addition of stems and condiments, being 20.85%, with a cost of R $ 17.13 per kg. Therefore, there is a new and viable alternative for the industry of dairy products.
BIORREMEDIATION OF EMERGING POLLUTANTS WITH THE USE OF STRUCTURED MATERIALS
Authors: ROSA Mima Sales Loiola , NUNES Luís Antônio Oliveira , SILVA Ives Brian Campelo Leite , FIGUEIREDO Francisco Cardaso , SANTOS JUNIOR José Ribeiro dos
Published: August 2021

Human activities in industry, transportation, agriculture and urbanization have been generating the release of emerging pollutants, in other words substances resistant especially in water bodies such as drugs, endocrine disruptors, heavy metals, textile dyes, chloride compounds, nitro phenols and pesticides. For the treatment of systems reached by these emerging pollutants, the bioremediation process has been used worldwide, and consists in using microorganisms that degrade pollutants. This process can be potentiated using structured materials that immobilize the microorganisms by physical or chemical adsorption and transports them to the pollutant. This review highlights the characterization of the structured immobilized or free materials by Scanning Electron Microscopies (SEM) and Transmission (TEM), Energy Dispersive Spectroscopy (EDS), Energy Dispersive X-ray Analysis (EDAX), Fourier transform infrared spectroscopy (FTIR), X-ray Diffraction (XRD) and the influence of the pH on immobilization and bioremediation processes.
Making Thematic Analysis Systematic: The Seven Deadly Sins
Authors: Coker David C.
Published: August 2021

Thematic analysis is a methodology with wide use in content analysis and field work through interviews, observations, and focus groups. Despite popularity with researchers, there are several questions and problems with the methodology. There was an absence in exploration and explanation of the methods and hidden steps in thematic analysis. Using a case study with a thematic analysis of the methods of thematic analysis and an autoethnography, issues and concerns were examined across a broad sample of articles published using thematic analysis. Seven major problems permeate thematic analysis research, and recommendations to improve thematic analysis and all qualitative research are presented.
Effect of low-frequency tapping systems (d5; d6) on latex yield, labor productivity and latex physiological parameters on RRIV 106 clone
Authors: Truong Hai V.
Published: August 2021

The tapping labor shortage has been identified as a major issue for natural rubber companies in Vietnam. This study aimed to determine a suitable tapping system to adapt to the labor shortage. The experiment was conducted on RRIV 106 clone at Dong Phu rubber company, Binh Phuoc province, Vietnam in two the tapping years 2018 and 2019. The results showed that the treatments of low-frequency tapping systems (d5, d6) increased individual yield per tree per tapping (g/t/t) compared with that of d4. The g/t/t of treatments d5 and d6 with latex stimulant (ET 2.5%) applied by 6 to 10 times per year (d5, ET.6/y; d5, ET.8/y; d6, ET.8/y; d6, ET.10/y) was 23; 27; 45 and 47% higher than that of the control (d4, ET.4/y), respectively. Labor productivity (kg/task/day) of low-frequency tapping systems increased similarly to g/t/t. The tapper requirements of low tapping frequency (d5 and d6) were 20% and 33% lower than that of d4, respectively. Land productivity per year (kg/ha/year) of low-frequency tapping systems (d5 and d6) was equivalent (98 to 101%) as compared with that of the control. The effects of tapping systems on latex physiological parameters, tapping panel dryness rate (TPD), and dry rubber content (DRC, %) were not significantly different.
The effectiveness of Saccharomyces cerevisiae in inhibiting aflatoxin production and reducing the harmful effects of aflatoxin in ducklings
Authors: Nguyen Hai N.
Published: August 2021

Sacharomyces cerevisiae isolates were obtained from baker's yeast, soil, fruit and identified with PCR. Twenty-seven isolates of S. cerevisiae were screened for capacity of inhibition of aflatoxin production of Aspergillus flavus (A. flavus) on coconut extract agar media (CEA). The results showed that the coculture method of S. cerevisiae isolates and aflatoxin producing A. flavus on CEA medium could be used for screening the strains that are able to antagonize aflatoxin-producing A. flavus. On ground corn medium, with the rate of 104 aflatoxin-producing A. flavus spores and 108 S. cerevisiae yeast cells/g, S. cerevisiae was able to reduce the amount of aflatoxin produced by A. flavus in corn. In an in vivo experiment, it was found that addition of 108 cells of S. cerevisiae to one kg of duck feed contaminated with 300 ppb aflatoxin from 1 to 10 days of age reduced adverse effects of aflatoxin on the liver and kidneys of ducks
Effects of gamma rays from 60Co source on dwarf Dendrobium cross-breeding
Authors: Nguyen Vinh V.
Published: August 2021

In this research, seeds of DM12x13 dwarf Dendrobium cross-breeding germinated on (1 )/2 MS medium after 40 days were irradiated by 60Co source with various doses to determine LD50 (Lethal Dose 50%). After LD50 had been determined, protocorms of DM12x13 dwarf Dendrobium cross-breeding was irradiated by gamma rays from 60Co source in 5 doses: 0 Gy (control), 20 Gy, 40 Gy, 60 Gy and 80 Gy, dose rate 90 Gy/h to study the effect of gamma radiation on mutagenicity and evaluate the growth of these mutations in vitro. The result showed that the lethal dose of hybrid DM12x13 Dendrobium protocorm under the effect of 60Co gamma ray was 68 Gy. Survival ratio, growth and the ability to growth of plants reduced in higher doses and dead ratio were 100% when irradiated more than 80 Gy after 7 months. The effective doses for treating protocorm of DM12x13 crossbred lines were 20, 40 and 60 Gy. These doses were suitable for increased frequency of variation with generating wide-spread, diverse in structure and color of stems and leaves
Current status of acute hepatopancreatic necrosis disease (AHPND) and result of isolating AHPND-causing strains of farmed shrimp in Mekong Delta Region of Vietnam
Authors: Tran Hieu V.
Published: August 2021

Early mortality syndrome/acute hepatopancreatic necrosis (EMS/AHPND) was first detected in China in 2009. The disease spread rapidly to neighboring countries and emerged in almost major shrimp-producing regions in the world, including Vietnam. The disease has caused serious damage to the global shrimp industry and so far, there is no effective cure. In order to understand the current status of AHPND, and then to introduce effective prevention and detection measures, we collected data and shrimp samples in some provinces in the Mekong Delta to analyze and isolate the pathogenic strains. The results of our study conducted from 2014 - 2018 in four provinces (Ben Tre, Long An, Bac Lieu, Kien Giang) showed that AHPND damaged from 2.0 to 57.2% of the total shrimp farming area. In addition, we isolated 10 AHPND-positive strains via culturing and PCR. The results of representative sequencing of three strains LA1, LA5, and LA8 showed that they were 100% similarity with the previously published strain XN89. These isolated strains are used as a collection for further studies on the origin and mechanism of the disease by whole genome sequencing.
Effects of nitrogen and potassium application rates on growth and yield of garlic (Allium sativum L.) planted in Ninh Thuan province
Authors: Pham Nguyen H.
Published: August 2021

The objectives of the study were to determine the optimum application rates of nitrogen and potassium for good growth, high yield and economic efficiency of garlic cultivated on the sandy soil of Ninh Thuan province in Winter-Spring season 2018 - 2019. The experiment was laid out in strip-plot design with three replications. Vertical-strip plot factor (A) was four application rates of nitrogen (A1: 150; A2: 200; A3: 250, and A4: 300 kg N/ha). Horizontal-strip plot factor (B) was for three application rates of potassium (B1: 90; B2: 120, and B3: 150 kg K2O/ha). The study results showed that the combined application of 200 kg N/ha and 120 kg K2O/ha on the base of 80 kg P2O5 and 20 tons of cow manure resulted in higher plant height (58.2 cm), number of leaves (8.7 leaves/plant), the highest diameter of garlic bulb (3.5 cm), the highest average bulb weight (15.8 g/bulb) with a total of 17.1 cloves/bulb, the high commercial garlic bulb yield (13.42 tons/ha), and the highest profit (373,665,800 VND/ha/crop) with the profit margin was 2.15.
Assessment of salinity intrusion in coastal districts of Ben Tre province using Landsat 8 image
Authors: Le Lam N.
Published: August 2021

Monitoring and evaluation of saline water intrusion is an important task, especially for agricultural production in Ben Tre province. The paper introduces a new solution in the application of Landsat 8 satellite imagery and field survey data to determine the soil electrical conductivity (EC) for soil salinity assessment through the distribution of EC indice value. Analyzing and establishing the correlation between reflectance value, salinity indices and EC allow selecting a suitable model for the creation of a soil salinity map in 4 levels corresponding to EC values: no salinity (0 - 4), mild (4 - 8), moderate (8 - 16), very salinity (> 16). Research results in 2019 showed that most of the coastal districts of Ben Tre province were salty with EC values ranging from 8 to 16. The salinity decreased gradually from the East Sea to the mainland with the distance from 15 to 25 km. In brief, the study proposed solutions for rapid monitoring and evaluation of soil salinity based on the easy access of Landsat 8 images to calculate the necessary indices in the establishment of soil salinity maps for the local and regional scale.
Culture Hybridity in Padi Lapa Temple, Jakarta
Authors: Azizi Haikal Hibatul , Hartati C. Dewi
Published: August 2021

Abstract. Padi Lapa temple is located in west Jakarta. It is different with the other temple. The peak time for this temple is Thursday night. Thursday night is considered sacred time for people who often come here. In this temple there is a special offering place for Wali Songo which is only open on Thursday night. There is one statue that is above the altar, the statue is a statue of the grandson of Sunan Gunung Jati, Prabu Siliwangi, who is depicted as a tiger. The offerings is like Kejawen such as lisong, seven forms of flowers and incense. Special rituals were preserved. It can be seen that the tumpengan is seen on Eid al-Fitr, Eid al-Adha and the Prophet's birthday which are usually equated with the night of one sura. In the evening, a heirloom object that is placed or donated to the temple is sanctified by a pilgrim who studies or has sufficient Islamic knowledge.
A Possible Scriptural Precedent for Paul’s Teaching on Divorce (and Remarriage?) in 1 Corinthians 7:10-15
Authors: Peterson Brian
Published: August 2021

This paper argues that in the same way Jesus’ and the Pharisees’ positions on divorce were rooted in the Torah, so, too, Paul, a man steeped in the Hebrew Scriptures, may have been influenced by the Torah when formulating his own teaching on a believer’s freedom to remarry when abandoned by an unbelieving spouse. Here it is argued that Paul may have drawn upon the marital life of Moses, who appears to have remarried a Cushite woman after being abandoned by his wife Zipporah due to his Abrahamic faith.
Detaching the Census: An Alternative Reading of Luke 2:1-7
Authors: Armitage David J.
Published: August 2021

This paper offers an alternative approach to Luke 2:1-7, assuming for argument’s sake that Luke’s presumed chronology agreed with modern reconstructions in placing Quirinius’ census some years after Herod’s death. It is proposed that, on this basis, a coherent reading of the text is feasible in which the reference to Quirinius marks 2:1-5 as a digression, bounded by distinct transition markers, describing events several years after Jesus’ birth. This digression, which claims that Joseph and Mary registered in Bethlehem in AD 6, despite having resided in Nazareth for several years, emphasises the family connection to Bethlehem and therefore to David.
Μὴ ἐκλυόμενοι in Galatians 6:9
Authors: Jensen Aaron Michael
Published: August 2021

The final phrase of Galatians 6:9, μὴ ἐκλυόμενοι, is today almost universally understood as a conditional participle, placing a strong warning on the end of Paul’s encouragement to persist in doing good. This article argues on grammatical, contextual, and historical grounds that the participle would be better understood as having a ‘manner’ shading and as expressing the ceaseless nature of the eschatological harvest as an exhortation to ceaseless service in the present.
Construct a Fortress Against the Devil: John Chrysostom’s Plea to Build Churches in the Countryside
Authors: Strickland Michael
Published: August 2021

Given Chrysostom’s famous concern for the poor, it is perhaps surprising that he made multiple appeals to rich, land-owning Christians to build churches in the countryside. In fact, Chrysostom preferred that the poor be helped by building churches for them rather than giving them gifts directly. However, it is clear that he was less concerned with architecture and aesthetics and more with evangelisation. Chrysostom saw church buildings, with ‘full-time’ ministers, as a way not only to bless the poor of the countryside, but as a means for Christian instruction. Thus, he appealed to rich Christians by challenging them to build more churches. Rather than building baths, or taverns, or hosting markets, why not build churches to establish an eternal legacy, constructing ‘a fortress against the devil, for that is what the church is’?
‘Mosaic Covenant’ as a Possible Referent for νόμοϛ in Paul
Authors: Leighton Matthew B.
Published: August 2021

Any serious enquiry into Paul’s view of the law must include lexical considerations regarding the meaning of νόμος (‘law’) itself. A general consensus has emerged that νόμος predominantly refers to Mosaic legislation. A few scholars, however, have suggested that νόμος should sometimes be taken as a synecdoche for the Mosaic covenant administration. This article attempts to substantiate the plausibility of that referent by appealing to precursors for it in the OT and intertestamental literature, examples of a few of Paul’s uses of νόμος, and linguistic considerations related to word choice.
Moral Transformation Through Mimesis in the Johannine Tradition
Authors: Bennema Cor
Published: August 2021

Johannine ethics is a problematic area for scholarship but recently there has been a breakthrough. In this new era of exploring Johannine ethics, the present study examines the concept of moral transformation through mimesis. The argument is that when people live in God’s world, their character and conduct are shaped in accordance with the moral beliefs, values, and norms of the divine reality, and that mimesis proves to be instrumental in this process of moral transformation. The study also explores how Johannine Christians in the late first century could imitate an ‘absent’ Jesus and what they were seeking to imitate.
Sacrifice and Centralisation in the Pentateuch: Is Exodus 20:24-26 Really at Odds with Deuteronomy?
Authors: Foreman Benjamin
Published: August 2021

Many scholars believe Exodus 20:24-26 and Deuteronomy 12:1-28 present contradictory regulations on how and where to sacrifice. Exodus 20:24-26 seems to imply that sacrificial altars can be built at any location throughout the country, while Deuteronomy appears to prohibit all sacrifice outside of the central place of worship. Scholars have dealt with this discrepancy in various ways. In this paper I show how none of these explanations hold up to closer scrutiny and argue that both texts simply address different types of sacrifices permitted in ancient Israel.
Faith and Narrative: A Two-Level Reading of Belief in the Gospel of John
Authors: Seglenieks Christopher
Published: August 2021

The question of who truly believes according to John’s Gospel can be unclear, complicated by characters who display contradictory evidence, both portrayed positively yet also reflecting imperfections. A solution to the confusion lies in attending to the overt narration of the Gospel, which creates a distinction between events within the story and the presentation to the reader. Positive expressions of faith within the story can be identified as ‘acceptable belief’, involving commitment to Jesus but with a limited understanding of his identity and mission. Only after the cross is ‘genuine belief’, (which includes greater understanding), possible.
Colossians 1:23: A Case for Translating ἐπιμένετε (Continue) as Imperative, not Indicative
Authors: Balabanski Vicky
Published: August 2021

This paper presents a morphological observation about a verbal form in Colossians 1:23 that potentially has several significant implications. The paper is, first, a foray into an important new methodological approach, namely the study of the divisions displayed in the earliest Greek manuscript witnesses. Second, it is an exploration of the meaning of εἴ γε (traditionally translated here as ‘provided that’ or ‘if indeed’), and whether in this context the particle γε modalises εἰ in such a way that the meaning of this composite form is ‘if so’, or ‘this being the case’, or ‘accordingly’, followed by the imperative. Third, the paper argues that interpreting ἐπιμένετε (continue) as imperative, not indicative, is a less problematic way of reading Colossians 1:23, both linguistically and theologically, than the traditional reading.
A Theology of Facing Persecution in the Gospel of John
Authors: Lee Chee-Chiew
Published: August 2021

This article examines how John crafts the narratives and discourses to address the issue of fear and secrecy and to guide his audience/readers on how to face persecution. It is proposed that: first, John uses dualistic language with the rhetorical purpose of bringing across ironies, exposing underlying motives of characters, and heightening the impossibility of a middle ground; second, he deliberately portrays a few characters ambiguously to reflect the complexities of life – one cannot and should not easily classify everyone neatly into dualistic categories; and, third, John has a distinctive emphasis on divine providence with regard to facing persecution.
The Critical Edition of the Greek OT and NT: Stability, Change, and Implications
Authors: Lanier Gregory R.
Published: August 2021

Though their respective practitioners compare notes infrequently, the fields of NT and Septuagint textual criticism share resemblances in their overall trajectory. Namely, late nineteenth- and early twentieth-century critical editions have given way to decades-long international efforts to produce major critical editions that incorporate a staggeringly larger amount of manuscript data. But how much has the critical text itself changed? This article explores the magnitude of change over the past decades of work on the Greek NT and OT, offering observations about what the tremendous stability in the reconstructed text might tell us about the field(s) in general and the quality of ancient manuscripts.
Hosea 4 and 11, and the Structure of Hosea
Authors: Goldingay John
Published: August 2021

Hosea 4:1-3 pronounces an indictment on the entire world as a way of getting home a message to Ephraim. It opens a series of biddings in 4:1–9:9 that seek to get Ephraim to face the facts about itself and about the danger it is in. Hosea 9:10–13:16 [14:1] then comprises a series of reminders of past and present realities in the relationship between Israel and Yahweh. Within it, 11:1-11 is not a self-contained pericope marking mercy’s final victory over wrath, but part of 11:1–12:1 [2], which continues to urge Ephraim to choose between doom and hope.