bluuebunny/crossref_metadata_2025_split huggingface dataset:
The Influence of the Cooperative Learning Model Talking StickType Charged Science Literacy on Students Learning Competencies in the Material of Human Digestive Systems in SMP Negeri 15 Padang
Authors: Handayni Fitri , Darussyamsu Rahmawati , Selaras Ganda Hijrah , Syamsurizal Syamsurizal 
Published: August 2021

Research on the problems that exist in Padang 15 Public Middle School, student learning competencies are still low. The effort that can be done is to apply the cooperative learning model with the speaking stick type with literacy content of SMP 18 Padang. The purpose of this study was to study student learning through a cooperative model of speaking stick type with literacy at SMP 15 Padang. This type of research is experimental research with randomized posttest control group design. The population in this study were all students of class VIII SMP 15 Padang registered in 2018/2019. Sampling was done using the Simple purposive Sampling technique, which was chosen as the research sample was class VIII.3 as the experimental class and VIII.2 as the control class. The instrument used consisted of posttest questions for knowledge competencies, observation sheets for competencies and skills. The assessment hypothesis using the t-test, can prove the knowledge competency tcount 2.27> ttable 1.67, competency assessment value 80% with good categories and competency skills value tcount 3.5> ttable 1.67). This is an accepted hypothesis. It was concluded that the cooperative model of speaking stick type with literacy opposed the competence of knowledge, attitudes, and skills of class VIII students of SMP 15 Padang.
The Identification of Levels of Concept Understanding Using Three-Tier Multiple Choice Diagnostic Test
Authors: Adriani Witri , Syamsurizal Syamsurizal , Selaras Ganda Hijrah , Yogica Relsas 
Published: August 2021

This research aims at identifiying the levels of concept understanding on virus material at class X, SMA Pertiwi 1 Padang. This is a descriptive research involved 138 students from class X, SMA Pertiwi 1 Padang. This research used Three-Tier Multiple Choice diagnostic test instrument which categorized into three question levels. The results showed that students experienced the highest level of concept understanding on prevented virus infections with 53,87%, then followed with the highest level of full misconception on the role of the beneficial virus with 36,23%, the highest level of misconception false positive on the different virus and bactery with 12,32%, the highest level of misconception false negative on virus living with 14,49%, the highest level of guessing on virus’ classification with 7,61%, and the highest level of ununderstandable of virus replication’s cycles with 52,18%. Most of students experienced low criteria of the concept material of virus with 34,38%.
The Effect of Discovery Learning Model on Students’ Learning Competencies At Grade VII In Junior High School 16 Padang
Authors: Nofianti Nofianti , Helendra Helendra , Rahmi Yosi Laila , Ristiono Ristiono 
Published: August 2021

The low level of students’ science learning competencies at grade VII in Junior High School 16 Padang is caused by several factors, one of them is the learning process still used teacher-centered, so the students tend to inactive in the learning process. Therefore, it is necessary to conduct an innovative learning process in order to improve students’ competencies, in knowledge, attitudes and skill. One of the method that can be used by the teacher is by implementing the Discovery Learning model. The aim of this study is to determine the effect of the Discovery Learning model through students’ learning competencies in science (knowledge, attitudes and skill) at grade VII in Junior High School 16 Padang. This type of research is experimental research with a control group posttest only design. The population in this study were all class VII SMPN 16 Padang registered in the 2018/2019. Sampling was done using technique purposive sampling, which was chosen as the sample of the study was class VII.5 as the experimental and VII.2 as the control class. The instruments used were in the form of questions posttest for knowledge competencies, observation sheets for attitide and skills. The hypothesis was tested using the t-test, can be concluded that the competencies of learners knowledge tcount 5,96 > ttable 1,67, the competencies of attitude value tcount 6,36 > ttable 1,67, and the competencies of skills value tcount1,69 > ttable1,67. This shows that the hypothesis is accepted. Concluded that the application of model the Discovery Learning has a positive effect on students’ science learning competency of knowledge, attitudes and skills of class VII students of SMPN 16 Padang.
Effect of Time Token Model Containing Science Literacy on Students’ Learning Competencies at Senior High School in Batusangkar
Authors: Z Ummul Haq , Darussyamsu Rahmawati , Fuadiyah Sa'adiatul , Syamsurizal Syamsurizal 
Published: August 2021

Research on the problems that exist in Batusangkar 1 Senior High School, student learning competencies are still low. The efforts that can be done are to implement a time learning model that contains scientific literacy. The purpose of this study was to determine the effect of the time token model with scientific literacy on the learning competency of students' in Batusangkar 1 Senior High School. This type of research was experimental research with a randomized control group posttest only design. The population in this study were all class X MIPA Batusangkar 1 senior high school registered in the 2018/2019. Sampling was done using Purposive Sampling techniques. X MIPA 2 as the experimental class and X MIPA 1 as the control class. The instruments used were in the form of posttest questions for knowledge competencies, observation sheets for attitude and skills competencies. Based on the results of the study using the t-test it can be concluded that the knowledge competencies of students t count 3.41> t table 1.67, the attitudes competency t count 5.95> t table 1.67, and the skills competency tcount 2.34 > t table 1.67. it shows that the hypothesis was accepted. So, the application of the time token model with scientific literacy can improve the competency of knowledge, attitudes, and skills of class X students of senior high school 1 Batusangkar
ETHNOBOTANY STUDY OF Albizia procera IN TAMIANG HILL FOREST OF TANAH LAUT REGENCY AS A POPULAR SCIENTIFIC BOOK
Authors: Salsabila Nada , Dharmono Dharmono , Putra Aminuddin Prahatama 
Published: August 2021

Birik wood (Albizia procera) grows wild in the Tamiang hill forest and is often used by the local community. This study aims to describe the ethnobotany of the Albizia procera plant in the Tamiang hill forest area, Tanah Laut Regency and describe the validity and practicality of the contents of the popular scientific book on the Albizia procera plant. The research method used was descriptive research for ethnobotany studies and continued with the formative evaluation of the Tessmer test for the feasibility of the developed popular sciencetific book. The results showed that the Albizia procera plant had tree species, had white round stems, sympodial branches, double pinnate compound leaves, unlimited compound flowers, dry true fruit with pod and taproot type. Albizia procera plant is used as stomachache medicine, also used for road shade and livestock feed. The Albizia procera plant is believed by local people if it is burned it will cause the goat hair to fall out. Albizia procera plants are widely used as firewood, building materials and food materials. People in the hill forest area of Tamiang call the Albizia procera plant "birik wood" because of its speckled stems. The results of the development of teaching materials in the form of Popular Scientific Books on expert tests by 2 validators had very valid results, and the practicality of the content by 3 students had very good results. This popular scientific book is to support the Ethnobotany subject.
After the Flood: A Multidisciplinary Investigation of Human Remains Found in a Floodplain and First Record of Raft Spiders Colonizing a Corpse
Authors: Guareschi Edda E. , Magni Paola A 
Published: August 2021

In the analysis of any forensic case, the estimation of time, cause and manner of death is affected by post-mortem changes. These are inextricably linked to both intrinsic characteristics of the body and a variety of external factors, mainly environmental, such as the presence and types of scavengers. While there are several research and case-studies on terrestrial environments, there is scant knowledge regarding aquatic environments, either stable or cyclical/seasonal. At present, no case studies have considered human remains discovered in the mud, following a flooding event. This case study describes a body discovered in a floodplain area in northern Italy. After a flood event, the water progressively drained out, leaving the body in the mud. Besides the unique conditions of the remains, of particular interest was the colonization by larvae of Calliphora vomitoria (L.) (Diptera: Calliphoridae) and raft spiders, Dolomedes fimbriatus (Clerck) (Araneae: Pisauridae), for thefirst-time recorded colonizing a corpse. The multidisciplinary approach to such an investigation is described.
Performance of the Nanobio-Based Reagent for Visualising Wet Fingerprints Exposed to Different Levels of Water Salinity
Authors: Ting Chao Wen , Mahat Naji Arafat , Azman Aida Rasyidah , Muda Nor Wajihan , Anuar Nurazira 
Published: August 2021

Introduction: Recovery of evidence such as murder weapons in waterways has been commonly reported. However, visualising latent fingerprints on the immersed substrates may prove challenging due to its obliteration by physicochemical parameters (e.g. pH, temperature, salinity) as well as the mechanical effect of water. Although the use of Small Particle Reagent (SPR) for visualising latent fingerprints on wet non-porous substrates has been suggested, it contains molybdenum and titanium that are toxic, and their utilisation must be reduced. Furthermore, no study verifies the chemical and/or physical interaction between SPR and the lipid constituents of wet latent fingerprints that leads to the visualisation of ridge details. Methods: The SPR and newly developed nanobio based reagent (NBR) i.e. Candida rugosa lipase-multiwalled carbon nanotubes (CRL-MWCNTs) were used for visualising latent fingerprints on glass slides immersed in water with salinitylevels representing those of estuary and swimming pool for up to 15 days. Results: It was observed that the quality of the visualised fingerprints using NBR was comparable with that of SPR. Characterisations via instrument and bioinformatics analyses have also verified the incorporation of CRL onto MWCNTs and the chemical interaction between NBR and lipid constituents of wet latent fingerprints. Conclusions: Therefore, the newly developed NBR may prove a promising relatively greener alternative for substituting SPR for visualising latent fingerprints on glass slides immersed in different levels of water salinity.
Investigation of the effects of dietary supplementation with 25-hydroxyvitamin D3 and vitamin D3 on indicators of vitamin D status in healthy dogs
Authors: Backus Robert C. , Foster Lauren R. 
Published: August 2021

Abstract

OBJECTIVE
To compare the effects of short-term dietary supplementation with vitamin D3 and 25-hydroxyvitamin D3 (25[OH]D3) on indicators of vitamin D status in healthy dogs.

ANIMALS
13 purpose-bred adult dogs.

PROCEDURES
20 extruded commercial dog foods were assayed for 25(OH)D3 content. Six dogs received a custom diet containing low vitamin D concentrations and consumed a treat with vitamin D2 (0.33 μg/kg0.75) plus 1 of 3 doses of 25(OH)D3 (0, 0.23, or 0.46 μg/kg0.75) once daily for 8 weeks followed by the alternate treatments in a crossover-design trial. In another crossover-design trial, 7 dogs received a custom diet supplemented with vitamin D3 or 25(OH)D3 (targeted content, 3,250 U/kg [equivalent to 81.3 μg/kg] and 16 μg/kg, respectively, as fed) for 10 weeks followed by the alternate treatment. In washout periods before each trial and between dietary treatments in the second trial, dogs received the trial diet without D-vitamer supplements. Dietary intake was monitored. Serum or plasma concentrations of vitamin D metabolites and biochemical variables were analyzed at predetermined times.

RESULTS
25(OH)D3 concentrations were low or undetected in evaluated commercial diets. In the first trial, vitamin D2 intake resulted in quantifiable circulating concentrations of 25-hydroxyvitamin D2 but not 24R,25-dihydroxyvitamin D2. Circulating 25(OH)D3 concentration appeared to increase linearly with 25(OH)D3 dose. In the second trial, circulating 25(OH)D3 concentration increased with both D vitamer–supplemented diets and did not differ significantly between treatments. No evidence of vitamin D excess was detected in either trial.

CONCLUSIONS AND CLINICAL RELEVANCE
Potency of the dietary 25(OH)D3 supplement estimated on the basis of targeted content was 5 times that of vitamin D3 to increase indicators of vita-min D status in the study sample. No adverse effects attributed to treatment were observed in short-term feeding trials. (Am J Vet Res 2021;82:722–736)
Network analysis of interconnections between theoretical concepts associated with principal–agent theory concerning construction projects
Authors: Ceric Anita , Ivic Ivona 
Published: August 2021

Abstract
Communication risks and asymmetric information among project participants are often associated with poor performance in construction projects. Communication and coordination are prominent issues in recent research on construction management, with little actual theoretical foundation. The purpose of this study is to investigate the extent to which principal–agent (P–A) theory and its implications are used in construction management research. In the archives of the top seven construction management journals, 148 scientific papers mentioning P–A theory were found. The keywords were analysed to determine the connections between them. Network analysis (NA) of the interconnected keywords was used to illustrate the most common relations between P–A theory and construction management. The findings of this study indicate that the most important elements associated with P–A theory in construction management are contracts, governance, partnership, transaction costs, information systems, incentives, risk management, and trust. However, some keywords are often used without considering related theoretical concepts. This study introduces a new perspective on P–A theory research in the field of construction management.
Comparative assessment of infection prevention and control practice among maternity unit health workers in public and private secondary health facilities in Kaduna state, Nigeria
Authors: Sunday Joseph , Sufiyan Muawiyya Babale , Ejembi Clara Ladi , Natie Butawa Nuhu , Olorukooba Abdulhakeem Abayomi , Igboanusi Chinedu John-Camillus , Onoja-Alexander Mary , Musa Yakubu , Ajumuka Emmanuel Eziashi 
Published: August 2021

Objectives:Infection prevention and control (IPC) practice in health facility (HF) is abysmally low in developing countries, resulting in significant preventable morbidity and mortality. This study assessed and compared health workers’ (HWs) practice of IPC strategies in public and private secondary HFs in Kaduna State.Material and Methods:A cross-sectional comparative study was employed. Using multistage sampling, 227 participants each were selected comprising of doctors, midwives, and nurses from public and private HF. Data were collected using interviewer-administered questionnaire and observation checklist and analyzed using bivariate and multivariate analysis. Statistical significance determined atP< 0.05.Results:The practice of infection prevention was poor. Overall, 42.3% of the HWs did not change their gowns in-between patients, with the significantly higher rates in 73.1% of private compared to 42.3% of public HF workers (P< 0.001). In addition, 30.5% and 10.1% of HWs do not use face mask and eye goggle, respectively, when conducting procedures likely to generate splash of body fluids, however, there was no significant difference in these poor practices in public compared to private HFs. The mean IPC practice was 51.6 ± 12.5%, this was significantly lower among public (48.8 ± 12.5%) compared to private (54.5 ± 11.9%) HF workers (P< 0.0001). Private HF workers were 3 times more likely to implement IPC interventions compared to public HF workers.Conclusion:IPC practice especially among public HF workers was poor.
PENINGKATAN KESELAMATAN DI RUAS JALAN PANTURA KM 46–47 KECAMATAN PATROL KABUPATEN INDRAMAYU
Authors: Shehera Kurniastuti Arivia , Sari Novita , Sutanto Sulistyo 
Published: August 2021

Abstract

The number of traffic accidents that occur in Indramayu Regency continues to increase and causes many casualties and material losses. From the available data, it is known that there is one road section which is an accident-prone area, namely the North Coast Java Road section, KM 46-47, which is located in Patrol District, Indramayu Regency. The flow and speed of traffic on this road is quite high, because of its function as a primary arterial road. This study aims to improve safety on the North Coast Java Road section, KM 46-47. The method used is in the form of observation and field data collection. Furthermore, the data obtained is processed, analyzed, and followed by formulating appropriate recommendations. This study shows that the main cause of accidents is the human factor, especially those related to high traffic speeds. To improve the existing conditions, it is proposed to provide road equipment, especially traffic signs, which are adjusted to the stopping sight distance required by motorized vehicles using the road. In addition, it is necessary to apply speed management as part of efforts to improve traffic safety.

Keywords: traffic accident; stopping sight distance; road equipment, traffic speed; traffic signs.

Abstrak

Angka kecelakaan lalu lintas yang terjadi di Kabupaten Indramayu terus meningkat dan menyebabkan banyak korban jiwa dan kerugian material. Dari data yang ada diketahui bahwa terdapat satu ruas jalan yang termasuk daerah rawan kecelakaan, yaitu ruas Jalan Pantai Utara Jawa, KM 46-47, yang terletak di Kecamatan Patrol, Kabupaten Indramayu. Arus dan kecepatan lalu lintas di ruas jalan tersebut cukup tinggi, karena fungsinya sebagai jalan arteri primer. Studi ini bertujuan untuk meningkatkan keselamatan di ruas Jalan Pantai Utara Jawa KM 46-47. Metode yang digunakan berupa observasi dan pengumpulan data lapangan. Selanjutnya data yang diperoleh diolah, dianalisis, kemudian dirumuskan rekomendasi yang tepat. Studi ini menunjukkan bahwa faktor penyebab kecelakaan yang utama adalah faktor manusia, khususnya yang berhubungan dengan kecepatan lalu lintas yang tinggi. Untuk memperbaiki kondisi yang ada, diusulkan pemberian perlengkapan jalan, khususnya rambu lalu lintas, yang disesuaikan dengan jarak pandang henti yang diperlukan oleh kendaraan bermotor yang melintasi jalan tersebut. Selain itu perlu diterapkan manajemen kecepatan sebagai bagian upaya meningkatkan keselamatan lalu lintas.

Kata-kata kunci: kecelakaan lalu lintas; jarak pandang henti; perlengkapan jalan, kecepatan lalu lintas; rambu lalu lintas.
O processo histórico da disciplina Matemática como referência para a formação de dirigentes
Authors: Pires Luiz Fernando Rodrigues , Gomes Suzana Santos 
Published: August 2021

Este artigo apresenta uma discussão sobre o contexto histórico em que o ensino da Matemática passou a ser utilizado como formação da capacidade de abstração e reflexão, função anteriormente exercida pelo sistema educacional humanista, com o ensino do Grego e do Latim. O século XVIII foi marcado pela revolução industrial, o que contribuiu para o acelerado crescimento das cidades, modificando o perfil de dirigente. Com esse movimento, o ensino humanista entrou em declínio, impulsionando a busca por uma disciplina que poderia substituir a formação dada pelo ensino do Grego e do Latim, algo que possibilitaria a formação do raciocínio lógico, como também a formação de dirigentes e a seletividade da escola (Gramsci, 2001). Nesta visão, optou-se, neste estudo, pela metodologia exploratória cuja coleta de dados se deu pela análise documental, com base em um estudo teórico-bibliográfico. Os resultados indicam que as concepções de abstração e reflexão instituídas atualmente estão relacionadas à aplicação da Matemática à realidade, distante da técnica de pensar indiciada por Gramsci, além da formação de dirigentes estar vinculada mais a concepções mercadológicas do que a real elevação intelectual e moral do cidadão.
Desenvolvimento de Modelo que Estima o Impacto do CO2 Atmosférico nas Precipitações do Estado de Pernambuco, utilizando ARIMA
Authors: Galvíncio Josiclêda Domiciano , Luz Gabrielly Gregorio da 
Published: August 2021

Sabe-se que o estado de Pernambuco sofrerá impactos na precipitação devido ao aumento de CO2 na atmosfera. Na tentativa de contribuir nos prognósticos desses impactos este estudo tem como objetivo desenvolver um modelo que faça prognóstico ou crie cenários futuros para o estado de Pernambuco. Para tanto, foi utilizado o método autorregressivo de médias móveis, ARIMA. O ajuste do modelo foi realizado utilizado a função Bayesian information criterion normalizada. Os resultados mostraram que o modelo desenvolvido apresenta um forte ajuste. O modelo foi melhor ajustado para o Agreste e Oeste do estado. O modelo projeta uma tendência de diminuição da precipitação para o oeste do estado de Pernambuco de aproximadamente 15% abaixo da média histórica até 2027. O modelo projetou precipitações acima da média histórica para o Agreste de Pernambuco, de aproximadamente 17%, até 2027. Conclui-se que ocorrerá com maior frequência anos chuvosos no Agreste de Pernambuco e teremos com maior frequência anos secos no oeste do estado. Na aplicação dos resultados deste estudo e simulação com o modelo SUPer-Sistema de Unidades de Respostas Hidrológicas para Pernambuco conclui-se que ocorrerá mais picos de cheias na bacia do Mundaú até 2027.Palavras-Chave: Cenários, mudanças climáticas, precipitação, recursos hídricos. Development of a Model that Estimates the Impact of Atmospheric CO2 on Precipitation in the State of Pernambuco, using ARIMA ABSTRACTIt is known that the state of Pernambuco will suffer impacts on precipitation due to the increase in CO2 in the atmosphere. In an attempt to contribute to the prognosis of these impacts, this study aims to develop a model that makes a prognosis or creates future scenarios for the state of Pernambuco. For that, the autoregressive method of moving averages, ARIMA, was used. The model adjustment was performed using the normalized Bayesian information criterion function. The results showed that the developed model presents a strong fit. The model was better adjusted for the Agreste and West of the state. The model projects a precipitation decrease trend for the western state of Pernambuco of approximately 15% below the historical average until 2027. The model projected rainfall above the historical average for the Agreste of Pernambuco, of approximately 17%, until 2027. It concludes It is believed that rainy years will occur more frequently in the Agreste region of Pernambuco, and we will have more frequent dry years in the west of the state. In applying the results of this study and simulation with the model SUPER-System of Hydrological Response Units for Pernambuco, it is concluded that there will be more flood peaks in the Mundaú basin until 2027.Keywords: Scenario, climate change, rainfall, water resources.