bluuebunny/crossref_metadata_2025 huggingface dataset:
Model Problem Based Learning Meningkatkan Hasil Belajar IPA Siswa Kelas VI
Authors: Negara I Putu Agus Suastika , Kristiantari Maria Goreti Rini , Saputra Ketut Alit
Published: March 2022

Kegiatan pembelajran IPA di SD masih berpusat pada guru dimana guru memberikan materi kepada siswa sehingga siswa hanya mendengarkan dan mencatat apa yang disampaikan oleh guru, sumber belajar IPA hanya buku paket tematik saja, kegiatan pembelajaran IPA kurang memberikan pengalaman belajar seperti melaksanakan proses pemecahan masalah yang berkaitan dengan gejala-gejala alam sekitar, kegiatan pembelajaran IPA masih bersifat hafalan. Hal ini menyebabkan hasil belajar siswa rendah. Penelitian ini bertujuan untuk meningkatkan hasil belajar IPA melalui penerapan model pembelajaran problem based learning. Subjek penelitian adalah siswa kelas VI sebanyak 32 orang. Pengumpulan data menggunakan metode tes berbentuk pilihan ganda dengan jumlah soal sebanyak 10 butir. Data hasil belajar dianalisis dengan teknik deskriptif kuantitatif yaitu dengan mencari rata-rata nilai siswa dan ketuntasan belajar. Data siklus I menunjukan rata-rata nilai hasil belajar mencapai 70 ketuntasan belajar mencapai 62,5% dengan kriteria cukup. Pada siklus II menunjukan rata-rata nilai hasil belajar mencapai 74,69 dan ketuntasan belajar 84,38% dengan kriteria tinggi. Maka, penerpan model pembelajaran problem based learning dapat meningkatkan hasil belajar IPA siswa kelas VI. Adanya penerapan model pembelajaran problem based learning yaitu siswa berperan aktif memecahkan berbagai persoalan yang dihadapi, pengalaman langsung saat belajar, keterlibatan siswa secara aktif dalam proses pembelajaran, pembelajaran bersifat konstruktivisme, peningkatkan daya ingat siswa dan pembelajaran berpusat pada siswa.
Evaluasi Program Pembelajaran dalam Jaringan di Sekolah Menengah Kejuruan
Authors: Winanda Randi , Jalinus Nizwardi
Published: March 2022

Terdapat beberapa masalah dalam implementasi pembelajaran dalam jaringan (Daring). Salah satunya yaitu belum pernah dilakukannya evaluasi program pembelajaran daring. Penelitian ini bertujuan untuk mengevaluasi komponen konteks, masukan, proses, dan hasil pada pembelajaran dalam jaringan (daring) di sekolah menengah kejuruan. Jenis penelitian adalah penelitian evaluasi dengan model evaluasi CIPP (Context, Input, Process, Product). Metode yang digunakan adalah metode kuantitatif. Data kuantitatif dikumpulkan melalui angket dan dianalisis dengan analisis deskriptif menggunakan tingkat pencapaian responden. Hasil penelitian menunjukkan bahwa komponen konteks, masukan, proses, dan hasil pada program pembelajaran daring di sekolah menengah kejuruan berada pada kategori cukup. Komponen proses dan komponen hasil perlu diperbaiki supaya  pembelajaran daring dapat dilaksanakan secara optimal. Berdasarkan temuan penelitian dapat direkomendasikan pembelajaran daring dapat dilanjutkan dengan melakukan perbaikan pada setiap komponennya. Pendidik dan peserta didik yang terlibat di dalam implementasi pembelajaran daring perlu meningkatkan wawasan dan ilmu pengetahuan mengenai perkembangan teknologi. Implikasi dari penelitian ini adalah perlunya pihak sekolah melengkapi dan memperbaharui sarana dan prasarana sekolah, memberikan motivasi kepada pendidik dan peserta didik untuk lebih aktif di dalam implementasi pembelajaran daring.
Buku Pedoman Permainan Tradisional untuk Menumbuhkan Karakter Empati Anak Usia 9-12 Tahun
Authors: Fajarwati Yasinta Elva , Nugrahanta Gregorius Ari
Published: March 2022

Masalah pendidikan di Indonesia sangatlah kompleks karena di semua aspeknya terdapat persoalan yang perlu diselesaikan. Degradasi moral telah merajalela dalam dunia pendidikan sehingga menjadi dampak buruk dalam dunia pendidikan. Penelitian ini bertujuan untuk menciptakan buku pedoman permainan tradisional untuk menumbuhkan karakter empati anak usia 9-12 tahun. Jenis penelitian ini adalah penelitian pengembangan atau Research and Development (R&D). Penelitian ini melibatkan melibatkan 7 guru Sekolah Dasar yang sudah tersertifikasi dari berbagai daerah untuk melakukan analisis kebutuhan, 8 validator untuk expert judgement, dan6 anak untuk uji coba buku pedoman secara terbatas. Teknik yang digunakan untuk pengumpulan data adalah teknik nontes dan tes. Teknik nontes ditujukan kepada guru untuk instrumen analisis kebutuhan dengan kuesioner terbuka dan tertutup. Teknik analisis data menggunakan analisis kuantitatif dengan program komputer IBM SPSS Statistics version 22 for Windows. Hasil penelitian menunjukkan bahwa kualitas buku pedoman permainan tradisional memiliki rerata skor sebesar 3,93 (skala 1-4), dengan rekomendasi “sangat baik”. Penerapan buku permainan tradisional berpengaruh terhadap karakter empati anak usia 9-12 tahun. Hasil uji signifikansi t(5) = 12.969, p = 0,000 (p < 0,05). Besar pengaruh sebesar r = 0,985 yang masuk kategori “efek besar” setara dengan pengaruh 97,10%, artinya penerapan buku pedoman permainan tradisional ini dapat menjelaskan 97,10% perubahan varian yang terjadi pada karakter empati anak. Tingkat efektivitas ditunjukkan dengan N-gain score sebesar 92.012% yang masuk dalam kategori “Tinggi”. Maka, buku pedoman permainan tradisional layak dan efektif digunakan dalam menumbuhkan karakter empati anak usia 9-12 tahun.
Sociodemographic, living environment and maternal health associations with stillbirth in a tertiary healthcare setting in Kano, Northern Nigeria
Authors: Milton Rebecca , Modibbo Fatima , Gillespie David , Alkali Fatima , Mukaddas Aisha , Sa’ad Fatima , Tukur Fatima , Khalid Rashida , Muhammad Maryam Yahaya , Bello Murjanatu , Edwin Chinago Precious , Ogudo Ese , Iregbu Kenneth , Jones Lim , Hood Kerenza , Ghazal Peter , Sanders Julia , Hassan Brekhna , Walsh Timothy
Published: March 2022

Background

Stillbirths are reported as one of the most neglected tragedies in global health, with around 2m stillbirths occurring annually and the majority occurring in low- and middle income countries (LMICs). Many antenatal stillbirths are due to preventable conditions such as maternal infections and non-communicable diseases. Almost half of all stillbirths occur during the intrapartum period, with many linked to obstetric complications. Known risk factors for stillbirths overall include young or advancing maternal age, fetal infection, maternal hypertensive conditions, perinatal asphyxia, history of previous stillbirth, obstetric complications, intrauterine growth restriction and abruptio placenta/placenta praevia. Common non-clinical risk factors include lack of education, socioeconomic deprivation and substandard antenatal care.

Methods

A single site prospective observational study conducted over three-months was conducted in a tertiary referral hospital in Kano, Nigeria. Eligible participants were mothers presenting at the site in labour and their babies.

Demographic and clinical data were collected by paper-based questionnaires. Data were collected on living environment, health and medical history, pregnancy history and pregnancy/birth factors. Each mother answered pre-delivery questions, with potential follow-on questions dependent on birth outcome. Further data points were collected from clinical observations. Photographs were taken of stillborn babies to support data collected and to aid the UK team on classifying degrees of maceration in an attempt to identify antenatal and intrapartum fetal death.

Findings

Higher odds of stillbirth were associated with low levels of education, a further distance to travel from home to the hospital, living in a shack, maternal hypertension and having had a previous stillbirth after adjusting for all sociodemographic and health features. Higher odds of intrapartum stillbirth included; shoulder presentation, compound presentation and breech presentation compared to cephalic presentation. Other birth related factors associated with higher odds of stillbirth included reported birthing complications, duration of labour being >=18 hours), antepartum haemorrhage, prolonged/obstructed labour, vaginal breech delivery, emergency Caesarean-section delivery, and signs of trauma to the neonate.

ConclusionsIdentified risk factors associated with stillbirths are relatively amenable to intervention and a lot of work has been conducted globally, so the development of intervention with sufficient funding should be a relatively rapid process.

For collaborations please contact: Email: miltonrl1@cardiff.ac.uk
A Social Return on Investment evaluation of the Emotion-Mind Dynamic (EMD) two phase social prescribing life coaching intervention to support mental health and wellbeing.
Authors: Makanjuola Abraham , Lynch Mary , Hartfiel Ned , Cuthbert Andrew , Edwards Rhiannon Tudor
Published: March 2022

BackgroundThe COVID-19 pandemic has created excess weighting lists to access Mental Health Services in the UK (Stats Wales, 2021). It is important to find effective solutions to alleviate the pressures that Mental Health services experience. The NHS Five Year Forward View encourages the development of new social prescribing empowerment-based interventions to supplement existing mental health programmes (Mental Health Taskforce, 2016). The EmotionMind Dynamic (EMD) is a lifestyle coaching programme that supports individuals suffering from anxiety or depression referred from the health and social care sectors. EMD offers a unique, non-clinical mixed-modality approach combining coaching, mentoring, counselling skills, teaching and mindfulness.

MethodsSocial Return On Investment (SROI) methodology is applied to evaluate the EMD service. The aim of the SROI analysis is to develop a programme-level theory of change to establish how inputs (e.g. costs, staffing) are converted into outputs (e.g. numbers of clients seen), and subsequently into outcomes that matter to clients impacted by EMD service (e.g. improved mental wellbeing). Wellbeing valuation will quantify and value outcomes using two value sets. The SROI mixed-method approach collects quantitative and qualitative data from questionnaires and interviews with former face-to-face EMD clients as well a new clients, undertaking the online blended learning programme.

FindingsInitial results indicate that the social prescribing face-to-face EMD programme generated positive social value ratios ranging from £9 to £23 for every £1 invested. In addition, the General Self-Efficacy Scale (GSES) which measures participant’s self-reported self-efficacy and confidence indicated that the face-to-face EMD participants experienced improved mental wellbeing and resilience as a result of participating in the EMD lifestyle coaching programme. Sensitivity analyses was conducted with Social Value Bank (SVB) figures for improved confidence and confirmed assumptions that former EMD clients experienced positive mental wellbeing improvements as a result of undertaking the lifestyle coaching programme.

ConclusionsThis is the first study to undertake an SROI analysis of a social prescribing lifestyle coaching programme aimed at improving mental wellbeing and resilience. Phase one of this novel SROI study of the face-to-face EMD clients indicates that the EMD lifestyle coaching programme has the potential to generate positive social value ratios. Phase two analysis of the online EMD blended learning programme will compare the effectiveness of the two lifestyle coaching formats: face to face and the online blended format to improve mental wellbeing and self-efficacy by participating in this innovative lifestyle coaching programme.
Preferences among young people between public and private sexual and reproductive health services
Authors: Notara Venetia , Zoitaki Theodora , Sakellari Evanthia , Lagiou Areti
Published: March 2022

BackgroundSexual and reproductive health services aim at the promotion of sexual health and elimination of the risk of sexually transmitted infections (STI’s). Therefore, they constitute an important framework for the improvement of young people's quality of life. The aim of this study was to investigate the main reasons that young people visit these services and furthermore what drives the choice between public and private sector.

MethodsThe study included participants aged 18-20 years, living in the capital city of Athens, Greece. The questionnaire was developed for the purposes of the current study, including questions about the reasons for visiting sexual and reproductive health services, preferences between public and private sector.

FindingsFrom 162 participants who visited sexual and reproductive health services, the main reason was for a Pap test (Pap smear) followed by STI/HIV testing, vaccination for HPV and other gynecological tests (i.e. ultrasounds). The majority of the participants, though not significant, preferred the private compared to public sector (n=127 vs n=35, respectively). The main reasons for choosing the private sector was accessibility and flexibility of appointments (p=0.02) and privacy (p=0.008). Even though, most of the participants (61.1%) who visited the private sector were informed about the existence of public sexual and reproductive health services.

ConclusionsConvenience and privacy seemed to be the most important reasons for visiting the private sector. Efforts should be made for public sexual and reproductive health services in order to be more accessible and flexible to young people. These efforts can be supported by community engagement initiatives.
Assessment of the impact of changes introduced into the design of vehicles in operation on road safety
Authors:   Saint Petersburg State University of Architecture and Civil Engineering, Belekhov A. A. , Evtyukov S. A. ,   Saint Petersburg State University of Architecture and Civil Engineering
Published: March 2022

The article discusses the procedure for conducting a preliminary technical examination of the design of vehicles in operation, in terms of assessing the impact of changes introduced into the vehicle design on road safety. The authors propose a classification of changes introduced into the design of vehicles according to changing design characteristics. Based on the proposed classification, an assessment is made of the impact of changes introduced into the design of vehicles on road safety, as well as on the probability of occurrence of road traffic accidents in the event of introducing a change into the corresponding classification characteristics.
Optimization of the location of charging stations for electric vehicles on the example of Tyumen
Authors:   Industrial University of Tyumen, Gorbunova A. D.
Published: March 2022

The development of electric vehicles necessitates the creation of charging stations` infrastructure, which, given the small size of the fleet, requires solving the problem of the optimal location of appropriate facilities. The article presents an analysis of scientific approaches in the area under consideration, which has made it possible, simultaneously with an analysis of the features of the functioning of the charging stations` infrastructure, to develop an algorithm for the optimal location of charging stations in the cities of the Russian Federation. To achieve the results of the work, the methods of system analysis and methods of optimal location of socially significant objects were applied. In the future, the approach is going to be applied in the algorithm of the methodology for substantiating the parameters of the urban charging stations` infrastructure for electric vehicles.
Marketing automation in the implementation of entrepreneurial activities in the field of real estate turnover using information and communication technologies
Authors:   Saint Petersburg State University of Architecture and Civil Engineering, Asaul A. N. , Shcherbina G. F. ,   Saint Petersburg State University of Architecture and Civil Engineering, Asaul M. A. ,   Saint Petersburg State University of Civil Aviation
Published: March 2022

The article considers the essence of marketing automation in the real estate market and managing the relations with customers by means of software programs, taking into account the trend of shifting the focus of entrepreneurial activity to pre-production and post-production processes. Based on the market analysis, there are described the most successful practical aspects of using information and communication technologies that are considered to be promising for marketing automation, including the best practices of lead generation. There is proposed software for marketing automation that is integrated with other tools. The function of CRM software package integrating with other tools is taken into account, and the most common examples of integration are given. The prospects for the introduction of information and communication technologies in the sphere of real estate turnover are highlighted.
Development of corporate culture of construction organizations as a factor of increasing competitiveness
Authors:   Saint Petersburg State University of Architecture and Civil Engineering, Panibratov Yu. P. , Koshcheev V. A. ,   Saint Petersburg State University of Architecture and Civil Engineering, Kozakov R. R. ,   Saint Petersburg State University of Architecture and Civil Engineering
Published: March 2022

The paper examines the trends and consequences of the crisis situation in the construction market of the Russian Federation associated with restrictive measures taken during the extension of COVID-19 which have a negative impact on the competitiveness of small and mid-size enterprises (SMEs). There are proposed and described some models and elements of corporate culture for construction organizations, as well as possible effects from its creation. The codes of corporate ethics of leading construction organizations of the Russian Federation have been studied. There is proposed a method that allows evaluating the effectiveness of corporate culture. The importance of the corporate culture for construction organizations has been substantiated.
Analysis of Pump Factory Supplier Selection Criteria Using AHP Method (Pt. XYZ Jakarta)
Authors: Etlanda Khoirul Akbar , Sutawidjaya Ahmad Hidayat
Published: March 2022

This study was structured to analyze the selection of suppliers at PT. XYZ (JAKARTA) which is a pump manufacturing company based in Jakarta. The object of this research is the management of PT. XYZ (JAKARTA). There are five criteria that have been determined by the management of PT. XYZ (JAKARTA), Price, Service, Company Condition, Quality and Delivery. Each criterion has also been determined sub-criteria to be more specific in the selection. Respondents for this study were managers and assistant managers who were directly related to the production process at PT. XYZ (JAKARTA). Determination of supplier selection criteria is calculated based on the weight of the criteria and the weight of the sub-criteria; the weighting of these criteria is carried out through the Analytical Hierarchy Process method. From the research results obtained the main criteria in the selection of suppliers are Quality, Delivery, Company Condition, Service and Price. The Consistency Ratio value of the five main criteria is at the tolerance limit (0.1), which states that the respondents' answers are included in the valid and consistent category.
Perceived Ease of Use and Brand Popularity: How Surcharge Modifies Its Relationship Within SMEs Choice toward Mobile Food Service Platform during Pandemic
Authors: Sondakh Oliandes
Published: March 2022

In 2020, due to the global pandemic, the digital transformation roadmap is forced to take a big leap to adapt to a new way of life. Despite the significant increase of digital technologies, many SMEs still struggle in technology adoption, especially smaller SMEs, which have less than 10 employees, including in Indonesia. Before the pandemic occurred, many food entrepreneurs in Indonesia were not interested in joining mobile food services. This is because many food entrepreneurs believe in the competitive advantage that their restaurants have, especially in terms of taste. They believe consumers are willing to make sacrifices to consume their food. However, since the pandemic occurred and mobility restrictions were imposed, many food entrepreneurs have started to find it difficult to sell their food and inevitably must join mobile food services to survive. This makes this research interesting, considering that most food entrepreneurs in Indonesia, especially in Surabaya, are old players with old fashion ways of business. Previous research shows that perceived ease of use and brand popularity are factors that dominantly influence user decisions in using a platform. This study aims to determine the effect of perceived ease of use and brand popularity on SMEs choice toward mobile food service platforms during a pandemic, and the moderating effect of surcharge on the relationship. The results of the study show that both perceived ease of use and brand popularity has a significant effect on SMEs choice toward mobile food service platform. Interesting result was found on the moderating effect. Surcharge was found to significantly weaken the relationship between perceived ease of use and SMEs choice toward mobile food service platforms, but not significantly in the relationship between brand popularity and SMEs choice toward mobile food service platforms. Further research can be done in a different area to gain deeper and boarder perspective.
Utilização do arco de Connecticut (CIA®) para intrusão dos dentes anteriores – relato de caso
Authors: Piovesan Martina Gonçalves , Naoe Henrique Hiroto , de Onofre Niége Michelle Lazzari , de Oliveira Filho José Gonçalves , Fehlberg Tanara Prux
Published: March 2022

A sobremordida profunda é uma má oclusão vertical que pode apresentar um conjunto de características esqueléticas, dentárias e neuromusculares que produzem uma quantidade excessiva de trespasse vertical na região dos incisivos. O tratamento da sobremordida pode ser realizado pela extrusão dos dentes posteriores, distalização dos dentes posteriores, inclinação vestibular dos dentes anteriores (com intrusão relativa) e intrusão real dos incisivos superiores e/ ou inferiores. Existem diferentes técnicas para tratamento da sobremordida, entretanto, muitas destas apresentam efeitos adversos decorrentes do tipo de mecânica aplicada. O arco Connecticut Intrusion Arch CIA® é um arco de intrusão que possui dobra em “V” pré-calibrada na região posterior, que é confeccionada com o alicate nº 291 (Zattyr®), proporcionando forças de intrusão adequadas (leve e contínua). O objetivo do trabalho foi realizar revisão de literatura sobre o arco CIA®, no qual foi descrito: definição, aplicabilidade, vantagens e desvantagens. Foi realizado um passo a passo da técnica de confecção deste arco e demonstrada sua aplicação em um caso clí- nico. O arco de intrusão, confeccionado de forma simples e padronizada, foi efetivo na intrusão dos incisivos e no controle mecânico vertical e sagital no sistema straight wire do caso clínico apresentado e de acordo com os resultados que foram encontrados na revisão de literatura.
Local de inserção de mini-implantes extra-alveolares no buccal shelf – revisão sistemática
Authors: do Rego Marcus Vinicius Neiva Nunes , Sousa Cristiano Alvarenga , Pinto Verônica Sousa , Fortes Pio Thiago
Published: March 2022

O presente estudo teve como objetivo avaliar, por meio de uma revisão sistemática da literatura, a melhor área anatômica para instalação de mini-implantes extra-alveolares na mandíbula, região do buccal shelf. A pesquisa foi realizada nas bases de dados PUBMED, SCOPUS, WEB OF SCIENCE e COCHRANE LIBRARY, de setembro de 2019 a março de 2020. A estratégia de busca incluiu termos relativos a mini-implantes extra-alveolares, ancoragem esquelética e espessura da cortical óssea mandibular e resultou em 18585 títulos/resumos, sendo nove artigos lidos integralmente. Foram selecionados cinco artigos para avaliação metodológica, após aplicação dos critérios de inclusão e exclusão. Todos os estudos foram retrospectivos e a maioria com nível de evidência moderado. Os resultados revelaram uma alta taxa de sucesso dos mini-implantes extra-alveolares (em torno de 90%) e, quanto à região anatômica, a área correspondendo à distal do segundo molar apresentou maior espessura da cortical e largura óssea. No entanto quanto mais distal ao segundo molar, maior a proximidade do nervo alveolar inferior. Foram observadas variações individuais, mas faltam evidências científicas em relação às possíveis variáveis de interferência tais como tipo de má oclusão, padrão de crescimento, tipo racial, idade e gênero. Conclui-se que os mini-implantes extra-alveolares na região do buccal shelf são recursos eficientes de ancoragem e o local mais adequado para a instalação foi a região vestibular aos segundos molares, a uma distância de 4mm a 8mm da junção cemento esmalte, com um ângulo de 700 a 900 com o plano oclusal mandibular.
Filosofia PDM: performance geral na Ortodontia interceptativa
Authors: D’Angelo Vania , Santos Vithor R Antunes
Published: March 2022

Resumo: O Protocolo em Dentição Mista (PDM) derivou da técnica autoligada em Ortodontia fixa, quebrando um paradigma de 120 anos, em que colar bráquetes em dentes decíduos não era prática. Antes da Filosofia PDM já havia colagens de bráquetes em decíduos, porém sem a intenção de os movimentar, eram usados simplesmente como ancoragem extra. Mas as recém-descobertas sobre as células tronco presentes na estrutura interna e externa dos decíduos tornou possível o desenvolvimento da Filosofia, além das comprovações de vários aspectos pertinentes como a movimentação de dentes com rizogênese incompleta e pistas diretas desoclusoras sinérgicas ao sistema bidimensional. Enfim, hoje, pode-se fazer Ortodontia Interceptativa com movimentos controlados utilizando aparelhos fixos e sem a necessidade de disjuntores ou outros aparelhos removíveis que necessitem colaboração do paciente, minimizando a necessidade de cirurgias ortognáticas.
THE EFFECT OF GROUP TYPE COOPERATIVE LEARNING MODELS INVESTIGATION OF CONCEPTUAL KNOWLEDGE STUDENTS ON BUSINESS AND ENERGY MATERIALS
Authors: Situmorang Lasria Lestari , Harahap Mara Bangun , Cahyani Indah
Published: March 2022

This study aims to determine the effect of cooperative learning model type of group investigation on student’s conceptual knowledge and activities in the subject work and energy. This research is a quasi-experiment using two-group pretest-posttest design. The study sample consisted of two classes, namely the XI MIA-1 class as the experimental class and the XI MIA-3 class as the control of which amounted to 32 students, the sampling be done with random sampling technique. The instrument used was a test of learning outcomes in the form of students conceptual knowledge in the form of 8 essay test. In the experimental class the average activity of students in the three meetings, are 60%, 72% and 87%. From the data obtained, there is evidence of the effect of group investigation models in improving learning activity on work and energy topic in XI Senior High School 10 Medan. The hypothesis with t-test shows the result there was a significant influence of cooperative learning model type group investigation to conceptual knowledge student subject of work and energy in class XI SMA Negeri 10 Medan T.P 2018/2019.       Keywords: cooperative learning type group investigation, activities, conceptual knowledge
THE APPLICATION OF MODEL PROBLEM BASED LEARNING (PBL) AGAINST STUDENT RESULTS IN SENIOR HIGH SCHOOL 11 SAMARINDA
Authors: Cerling Paulina , Syam Muliati , Junus Muhammad
Published: March 2022

This study aims to determine the increase in student learning outcomes of class XI IPA 1 senior high school 11 Samarinda after applying the PBL model to the Static Fluid material and to find out student responses about the application of the PBL model in static fluid learning. The research used One Group Pretest-Posttest Design method on Static Fluid material. The technique used was purposive sampling with the sample of this study were 35 students of class XI IPA 1 senior high school 11 Samarinda. The instruments used were written questions and questionnaires. Based on the results of the study showed that the average N-Gain was 0.69. The results of the t-test calculation showed that a significant level of learning outcomes and students' responses to PBL was in a good category or criteria.
ANALYSIS OF THE EFFECTIVENESS OF APPLYING DISTANCE LEARNING MODELS DURING PANDEMI COVID-19 IN MEDAN CITY
Authors: Wahyuni R , Fazira D A , Hutasoit E S , Lourenz T , Pardosi S
Published: March 2022

Based on Circular Number 4 of 2020 concerning the Implementation of Education Policies in the emergency period of the spread of the virus, the Minister of Education and Culture urges all educational institutions not to carry out the teaching and learning process directly or face-to-face, but must be done indirectly or remotely. The purpose of this study was to analyze the application of the distance learning model during the Covid-19 pandemic in the city of Medan. The method used in this research is descriptive method with a qualitative approach. The data collection technique uses an online questionnaire. From the results of the survey regarding the use of applications in the learning process, the most are using WhatsApp and Google Class Room. The process of delivering the respondent's subject matter answered sufficiently. The learning method used is the assignment and demonstration method. Assignments are given by the teacher via google form via the whatsapp group or via google class room. Based on the research results, it is concluded that the application of distance learning models (distance learning) cannot be said to be effective as long Covid-pandemic19 in the city of Medan because there were still many obstacles experienced by teachers in the learning process
THE EFFECT OF THE USE OF VIDEO-BASED LEARNING MEDIA LIGHT AND OPTICAL TOOLS ON THE IMPROVEMENT OF STUDENTS 'LEARNING OUTCOMES
Authors: Simanullang M Y , Simanjuntak P R N
Published: March 2022

This study aims see the use of instructional video media on student learning outcomes in the subject of light and optical tools for junior high school students with a random sample of grade eight junior high school students and online methods. The object of this research was students learning outcomes. Data collection techniques used test techniques through the Google form application. Quantitative data analysis techniques used in the form of test scores for student cognitive learning outcomes. The Test Instrument contains 20 multiple choice questions. The results showed that the video media was suitable for use with the "good" category as a learning medium for students
EVALUATION ANALYSIS OF DISTANCE LEARNING AT JUNIOR HIGH SCHOOLS IN SOUTH TAPANULI REGION
Authors: Siregar A , Fauzia D S , Salwa G
Published: March 2022

The pandemic COVID-19 has had many impacts on various aspects of people's lives in the world. One of the effects of the Covid-19 pandemic is on education around the world which has led to the closure of large schools, madrassas, universities and Islamic boarding schools. The spread of the virus which has spread very widely, the Indonesian government has issued social distancing and physical distancing policies to prevent more widespread transmission of the virus. So that the assessment and evaluation of learning in social distancing and physical distancing conditions carried out at home can use the remote assessment method. The purpose of writing this article is to find out how teachers evaluate students on distance learning during the pandemic COVID-19. The method used in this research was descriptive method. Descriptive method is a method used to describe, describe the phenomena that occur. This study used a quantitative approach. The quantitative approach aims to reveal something as it is (objective). The results that can be obtained from this study are distance learning teachers are very difficult to understand their students because during distance learning / offline the teacher can only provide a little material to students and the limited time given to the teacher during distance learning so that students also experience difficulties in receiving the lessons described by the teacher
MISCONCEPTIONS ON THE CONCEPT OF PHOTOSYTHESIS AND PLANT RESPIRATION FOR CLASS VIII AT SMP NEGERI 27 MEDAN IN SCIENCE LEARNING
Authors: Manurung G A , Simanjuntak L A , Sihombing R A
Published: March 2022

This research aims to find out the misconceptions that occured in the concept of photosynthesis andplant respiration for Class VIII at SMP Negeri 27 Medan In Science Learning. The research methodused by the writer in this research was descriptive qualitative method. The methodology itself was aprocess, principles, and procedures that use to approach problems and seek answers. The datacollection technique was carried out through the technique of giving a modified google formquestionnaire from a Denise journal questionnaire (2018) to several junior high school teachers inthe city of Medan. Interviews were conducted to find out more in-depth things related to themisconceptions that occur in students on the concepts of photosynthesis and respiration. The resultsof the analysis of the misconception questionnaire and interview data by teacher and students inClass VIII at SMP Negeri 27 Medan were presented. Based on the results of the research anddiscussion, it can be concluded that the misconceptions of class VIII students at SMP Negeri 27Medan fall into the “misconception” category with the criteria of “low” on the material ofPhotosynthesis and Plant Respiration.
Analisis Sebaran Awan Konvektif Penyebab Banjir Di Kabupaten Nganjuk Menggunakan Metode Red Green Blue dan Cloud Convective Overlays
Authors: Dwitrisna Muhammad Fa'iz , Haryanto Yosafat Donni
Published: March 2022

Abstract—Indonesia is a maritime country located on the equator, causing Indonesia to have a tropical climate. This causes a lot of convective clouds to grow because they get water supply from the sea so that information on the distribution of convective clouds is important for weather analysis purposes. On December 13, 2020, floods submerged several villages in Pace District, Nganjuk Regency due to the overflow of the Kolosoko river due to heavy rains. The purpose of this study was to see the distribution of convective clouds during heavy rains in Pace District. The data used in this study is Himawari-8 satellite data channels 3, 4, 5, 7, 8, 10, 13 and 15 to process the distribution of convective clouds. This research uses descriptive analysis method with daily weather parameters and Himawari-8 satellite imagery. Analysis of satellite image data using Cloud Convective Overlays (CCO) and Red Green Blue (RGB) CS and NC methods. This method is used to view the image of convective clouds making it easier to analyze the distribution of convective clouds. The results obtained in satellite images show significant growth of convective clouds while in weather radar images show moderate rain reflectivity due to radar limitations.

Keywords: flood, heavy rain, convective clouds, himawari-8

Abstrak—Indonesia merupakan negara maritim yang terletak di khatulistiwa sehingga menyebabkan Indoneisa beriklim tropis. Hal ini menyebabkan banyak awan konvektif yang tumbuh karena mendapat pasokan air dari laut sehingga informasi sebaran awan konvektif penting untuk keperluan analisis cuaca. Pada tanggal 13 Desember 2020 banjir merendam beberapa desa di Kecamatan Pace, Kabupaten Nganjuk akibat meluapnya sungai Kolosoko karena hujan lebat. Tujuan penelitian ini adalah untuk melihat sebaran awan konvektif saat hujan lebat di Kecamatan Pace. Data yang digunakan pada penelitian ini yaitu data satelit Himawari-8 kanal 3, 4, 5, 7, 8, 10, 13 dan 15 untuk mengolah sebaran awan konvektif. Penelitian ini menggunakan metode analisis deskriptif dengan parameter cuaca harian dan citra satelit Himawari-8. Analisis data citra satelit menggunakan metode Cloud Convective Overlays (CCO) serta Red Green Blue (RGB) CS dan NC. Metode tersebut digunakan untuk melihat citra awan konvektif sehingga mempermudah dalam menganalisis sebaran awan konvektif. Hasil yang diperoleh dalam citra satelit menunjukan pertumbuhan awan konvektif yang signifikan sedangkan dalam citra radar cuaca menunjukan reflektivitas hujan sedang karena adanya limitasi radar.

Kata kunci: banjir, hujan lebat, awan konvektif, himawari-8
Sistem Praktik Dokter Online Berbasis Website di Masa Pandemi
Authors: Tresna Absari Dhiani , Soesanto Daniel
Published: March 2022

Abstract—The pandemic period, which has been running for approximately two years, has brought many changes to everyone's lifestyle, including in Indonesia. All forms of mobility that used to be easy to do have turned into limitations during the pandemic. One of the activities that is important but full of limitations is conducting an examination at a doctor's practice. Patients and doctors during this pandemic, of course, feel worried if there is a crowd or accumulation of patients in the doctor's waiting room. In addition, various print media, such as patient medical histories, are also a source of concern because they can be a medium for transmitting the virus. Mobile technology and the growing website should be seen as an opportunity to make this easier. The contribution of this research is to develop a website-based online doctor practice system design that can help facilitate doctors' private practice activities both for patients and for doctors themselves. The validation results show that the system design developed can make it easier for patients to register and visit more safely during a pandemic. As for doctors, it was found that doctors felt very helpful in tracing the patient's medical history safely, completely, and easily.

Keywords: doctor, website, online, pandemic

Abstrak—Masa pandemi yang telah berjalan kurang lebih dua tahun, telah membawa banyak perubahan pada pola hidup setiap orang, termasuk di Indonesia. Segala bentuk mobilitas yang dulunya dapat dilakukan dengan mudah, berubah menjadi penuh keterbatasan pada masa pandemi. Salah satu kegiatan yang penting namun penuh keterbatasan adalah melakukan pemeriksaan pada praktik dokter. Pasien maupun dokter pada masa pandemi ini, tentunya merasa khawatir apabila terjadi kerumunan atau penumpukan pasien pada ruang tunggu dokter. Selain itu berbagai media cetak seperti riwayat medis pasien, juga menjadi sumber kekhawatiran karena dapat menjadi media dalam penularan virus. Teknologi mobile dan website yang semakin berkembang harus dipandang sebagai salah satu peluang untuk mempermudah hal ini. Kontribusi dari penelitian ini adalah mengembangkan sebuah desain sistem praktik dokter online berbasis website yang dapat membantu mempermudah aktivitas praktik pribadi dokter baik bagi pasien maupun bagi dokter itu sendiri. Hasil validasi menunjukkan bahwa desain sistem yang dikembangkan dapat mempermudah pasien dalam melakukan pendaftaran dan kunjungan dengan lebih aman di masa pandemi.  Sedangkan bagi dokter, didapatkan bahwa dokter merasa sangat terbantu dalam melakukan penelurusan riwayat medis pasien secara aman, lengkap, dan mudah.

Kata kunci: dokter, website, online, pandemi
Biokomposit Hidrogel dengan Ekstrak Centella asiatica sebagai Penutup Luka
Authors: Dominique Gian Leonardo  , Stephanie Singajaya  , Dinda Fluor Agustin  , Mariana Wahjudi
Published: March 2022

Abstract—When wounds occur on skin, cell regeneration and healing process will occur. Imperfect cell regeneration will end up leaving ugly scars. Any open wounds will have a high chance of being infected, further slowing the healing processes. The bacteria involved in wound infection are as follow: Pseudomonas aeruginosa, Escherichia coli and  Staphylococcus aureus. The usage of current medical adhesive to cover wound has many implications: cannot be used multiple times and untuk may end up resulting in MARSI (Medical Adhesive-Related Skin Injuries). To solve those problems, this research aims to find an alternative wound dressing that are able to solve the problems mentioned earlier. The synthesis of biocomposite hydrogel consists of bacterial cellulose mixed with gelatin with the crosslinker agent glutaraldehyde. The mixture is then given the wild herbs Centella asiatica extract as an active ingredient. It has been found that the best formulation consists of using 10% gelatine: bacterial cellulose paste with the ratio 200:1 with the total glutaraldehyde concentration of 1%. Furthermore, Centella asiatica 10% are not able to penetrate the human model skin, and did not exhibit any antimicrobial activity against Escherichia coli, Pseudomonas aeruginosa, and Staphylococcus aureus.

Keywords: biocomposite hydrogel, nata de coco, bacterial cellulose, gelatine, centella asiatica extract, wound dressing

Abstrak—Ketika luka terjadi pada kulit, regenerasi sel dan proses penyembuhan akan terjadi. Regenerasi sel yang tidak sempurna dapat menghasilkan bekas luka yang kurang enak dipandang. Selain itu, luka terbuka berisiko terinfeksi oleh patogen sehingga penyembuhan akan terhambat. Bakteri yang berperan pada infeksi luka adalah Pseudomonas aeruginosa, Escherichia coli dan Staphylococcus aureus. Penggunaan medical adhesive untuk menutup luka punya banyak kekurangan yaitu penggunaannya tidak bisa dilakukan berulang dan dapat menyebabkan MARSI (Medical Adhesive-Related Skin Injuries), yaitu berbagai komplikasi dan luka pada kulit yang ditempeli dengan produk tersebut. Untuk mengatasi pemasalahan tersebut, penelitian ini bertujuan untuk mendapatkan alternatif penutup luka terbaru yang dapat mengatasi permasalahan yang telah disebutkan. Pembuatan hidrogel biokomposit terdiri dari selulosa bakteri yang direaksikan dengan gelatin menggunakan agen crosslinker glutaraldehida. Campuran kemudian ditambahkan  bahan aktif dari ekstrak tanaman liar Centella asiatica. Didapatkan formulasi terbaik menggunakan perbandingan 10% gelatin:pasta selulosa bakteri = 200:1 dengan konsentrasi total glutaraldehida sebanyak 1%. Selain itu, ekstrak Centella asiatica 10% juga tidak dapat mempenetrasi model kulit manusia, serta tidak memiliki aktivitas antibakteri baik pada Escherichia coli, Pseudomonas aeruginosa, dan Staphylococcus aureus.

Kata kunci: hidrogel biokomposit, nata de coco, selulosa bakteri, gelatin, ekstrak centella asiatica, penutup luka
KOMPOS dan PUPUK CAIR LIMBAH SAWIT UNTUK NUTRISI TANAMAN GAHARU (Aquilaria malaccensis)
Authors: Iriyawati Iriyawati , Widowati Hening
Published: March 2022

The purpose of this study was to develop a theoretical aspect regarding the content of liquid and solid waste from a palm oil mill and its effect on the growth of agarwood plants. One of the most promising commodities in the industrial world is cooking oil, so palm oil as a CPO-producing plant is widely developed in Indonesia. Apart from being a producer of CPO, palm oil also has other roles or benefits. From the results of the literature study, it is known that palm oil waste has characteristics, including pH 4.0-6.0, BOD 20,000 mg/l - 60,000 mg/l, COD 40,000 mg/l - 12,000 mg/l, N 500 mg/ l - 900 mg/l, P from 90 mg/l - 140 mg/l, K from 260 mg/l - 400 mg/l, Ca from 1,000 mg/l -2,000 mg/l and Mg from 250 mg/l - 350 mg/l. There are many research journals that examine the content of palm oil waste, all of which state that palm oil waste contains macro elements needed by plants to grow and develop. Therefore, solid and liquid waste from palm oil mills can be used as organic fertilizer. Literature studies or literature studies are carried out from relevant and scientifically accountable sources so that they get valid data and become the basis of a new research. The conclusion of this study is that compost and organic liquid fertilizer from palm oil waste contains the nutrients needed for plant growth, including agarwood plants which are currently in a rare status.
PENGARUH BUMBUTERHADAP KADAR LOGAM BERAT KADMIUM (Cd) PADA UDANG VANNAME (Litopenaeus vannamei)
Authors: Veronika Gerhani , Widowati Hening , Sulstyani Widya Sartika
Published: March 2022

Vannamei shrimp (Litopenaeus vannamei) is one type of filter feeder, which is an animal that eats particles and organic matter and living things suspended in the air, generally by passing air into the animal's filter structure. Cadmium (Cd) has toxicity (the ability of a chemical substance to cause an organism) even at low concentrations. Antioxidants are substances that can slow down or prevent the oxidation process. This substance is significantly able to slow down or inhibit the oxidation of substances that are easily oxidized even in low concentrations. The main use of antioxidants is to stop or break the chain reaction of free radicals by donating one electron to compounds that are oxidants so that the activity of these oxidant compounds can be inhibited. Natural antioxidants are flavonoid compounds which are a group of polyphenolic compounds derived from plants such as tea, fruits, vegetables, and Indonesian spices such as turmeric, ginger, chili, shallots, garlic, and others.
Tūtira mai! Reporting a Tiriti o Waitangi settlement ceremony for public radio through a Māori lens
Authors: Middleton Atakohu
Published: March 2022

Radio New Zealand is a Government-owned public broadcaster in Aotearoa New Zealand. Its news channel, RNZ National, has among its reporting team Māori journalists who report in English on issues of significance to Māori for a national audience that is predominantly non-Māori. This case study documents the activities of a bilingual Māori RNZ National reporter as she covers a Tiriti o Waitangi settlement between the Crown and a collective of East Coast iwi (tribes). It traces how the reporter balances tikanga, or Māori cultural norms, with journalistic demands as she produces news stories for the internet and radio and images for Twitter. The news content is presented and analysed through the lens of the Anglo-American news values in operation in Aotearoa New Zealand, demonstrating how Māori history, culture and aspiration are centred within these. This paper assumes some understanding of news values and journalistic practice and process.
Teacher Readiness in Using Google Classroom Application in Mathematics Subjects
Authors: Balakrishnan Nivetha Kirushna , Setambah Mohd Afifi Bahurudin , A A Rahim N.
Published: March 2022

This study aimed to look at the readiness of teachers in the use of Google Classroom application in mathematics subjects. The use of the Google Classroom application which is an M-learning platform in teaching and learning was implemented intensively after our government introduced the Social Distancing Policy. The methodology of this study is quantitative and questionnaires are distributed to respondents in the form of Google Forms. A total of 99 primary and secondary school teachers were selected as study respondents. Study data were analyzed using SPSS (Statistical Package for Social Science) version 26. Statistical analysis used was descriptive statistics involving frequency, mean score and percentage, while inferential statistics involved t-test at a significance level of p <0.05. The results showed that gender factors did not affect the level of readiness of teachers from all aspects studied, namely knowledge, skills and attitudes. Overall, the aspect of teachers 'knowledge and skills towards the use of Google Classroom application is high, while from the aspect of teachers' attitude towards the use of Google Classroom application is moderate
Optical and Electrical Performance Analysis of InGaAs/InP Laser for Various Crystal Orientations
Authors: Mijwil Maad M.
Published: March 2022

The optoelectronic achievement of a lattice matching InGaAs/InP lateral cavity surface radiating LASER in crystal orientations (100), (110), (111), (113), and (131) is computationally simulated utilising MATLAB by attempting to solve a k.p Hamiltonian of eight-band utilising only a finite difference strategy with spin-orbit linkage. To shift wave-vector k as well as Hamiltonian from traditional (100) plane orientation, tensor plane revolution equations are used. It is demonstrated that optical emission spectrum and crystal plane alignments have a significant correlation. At a carriers injection density of 2.50 x 1018 per cm3, the maximum and minimum gains are measured in the (111) as well as (100) orientations, respectively, with optimum emission wavelengths of 1770.00nm and 1680.00nm. This research will serve as a catalyst for the development of ultra-fast optoelectronic devices with improved performance thanks to the use of non-100 orientation epitaxial layers.