bluuebunny/crossref_metadata_2025 huggingface dataset:
Percepciones de futuros profesores sobre la práctica docente en un contexto de formación por competencias
Authors: Gonzalez-Pons Aída Alexandra (Sandra) , Villegas María Margarita , Suriel José Ramón , Alevante Jael Francisca
Published: October 2022

En un contexto de formación por competencias (MINERD, 2016), se examinaron las percepciones sobre las prácticas docentes (ZABALZA, 2011), la identidad docente (SERRANO; PONTES, 2016) y las estrategias a favor del desarrollo profesional (BOZU; IMBERNON, 2009; GONZÁLEZ CALVO et al., 2015); sustentadas por estudiantes para profesor de secundaria en una institución de educación superior dominicana. El estudio fue exploratorio y descriptivo; la información fue obtenida mediante la técnica de grupo focal con nueve (9) estudiantes y algunos profesores tutores de la universidad y asociados de los centros de práctica. Para el análisis se utilizó procedimientos ad-hoc de análisis cualitativo, que permitieron construir categorías para responder las preguntas del estudio. Los estudiantes perciben que las prácticas docentes constituyen oportunidades para conocer el sistema educativo, coadyuvar en la configuración de la identidad profesional y componer un escenario efectivo para la apropiación de estrategias de mediación. Se sugiere mejorar la formación especializada y pedagógica de los profesores que los acompañan en dichas prácticas, articular la coherencia curricular entre universidad-escuela y la coordinación entre todos los entes involucrados en las políticas de formación.
Insulin Sensitization Following a Single Exercise Bout Is Uncoupled to Glycogen in Human Skeletal Muscle: A Meta-analysis of 13 Single-Center Human Studies
Authors: Hingst Janne R. , Onslev Johan D. , Holm Stephanie , Kjøbsted Rasmus , Frøsig Christian , Kido Kohei , Steenberg Dorte E. , Larsen Magnus R. , Kristensen Jonas M. , Carl Christian Strini , Sjøberg Kim , Thong Farah S.L. , Derave Wim , Pehmøller Christian , Brandt Nina , McConell Glenn , Jensen Jørgen , Kiens Bente , Richter Erik A. , Wojtaszewski Jørgen F.P.
Published: October 2022

Exercise profoundly influences glycemic control by enhancing muscle insulin sensitivity, thus promoting glucometabolic health. While prior glycogen breakdown so far has been deemed integral for muscle insulin sensitivity to be potentiated by exercise, the mechanisms underlying this phenomenon remain enigmatic. We have combined original data from 13 of our studies that investigated insulin action in skeletal muscle either under rested conditions or following a bout of one-legged knee extensor exercise in healthy young male individuals (n = 106). Insulin-stimulated glucose uptake was potentiated and occurred substantially faster in the prior contracted muscles. In this otherwise homogenous group of individuals, a remarkable biological diversity in the glucometabolic responses to insulin is apparent both in skeletal muscle and at the whole-body level. In contrast to the prevailing concept, our analyses reveal that insulin-stimulated muscle glucose uptake and the potentiation thereof by exercise are not associated with muscle glycogen synthase activity, muscle glycogen content, or degree of glycogen utilization during the preceding exercise bout. Our data further suggest that the phenomenon of improved insulin sensitivity in prior contracted muscle is not regulated in a homeostatic feedback manner from glycogen. Instead, we put forward the idea that this phenomenon is regulated by cellular allostatic mechanisms that elevate the muscle glycogen storage set point and enhance insulin sensitivity to promote the uptake of glucose toward faster glycogen resynthesis without development of glucose overload/toxicity or feedback inhibition.
PKM Peran Mahasiswa Kampus Mengajar 3 dalam Meningkatkan Literasi dan Numerasi Peserta Didik di Sekolah Dasar
Authors: Fitriyani Novi Nur , Kusuma Ramadhani Mahendra , Supriadi Yudi Nur , Kusuma Jaka Wijaya , Hamidah Hamidah
Published: October 2022

Kampus Mengajar merupakan bagian dari program kebijakan Merdeka Belajar oleh Kementerian Pendidikan, Kebudayaan, Riset, dan Teknologi Republik Indonesia yang memberikan kesempatan kepada mahasiswa selama 1 (satu) semester untuk membantu guru dan kepala sekolah SD dan SMP dalam melaksanakan kegiatan pembelajaran yang terdampak Pandemi. Tujuan dari penelitian ini yakni untuk meningkatkan kemampuan literasi dan numerasi siswa Sekolah Dasar melalui pelaksanaan program kampus mengajar. Penelitian ini tergolong kedalam jenis penelitian pengabdian kepada masyarakat. Mitra yang terlibat dalam pengabdian ini yakni siswa sekolah dasar serta dewan guru. Pengabdian ini dilaksanakan dalam tiga tahap yakni persiapan dengan mengikuti pembekalan dan melakukan observasi sekolah penempatan; pelaksanaan program Kampus Mengajar; dan melakukan analisis hasil pelaksanaan program Kampus Mengajar. Pendekatan yang digunakan dalam penelitian ini yakni pendekatan kualitatif dengan metode deskriptif. Dalam teknik pengumpulan data, penulis menggunakan teknik dokumentasi dari setiap kegiatan yang dilaksanakan kemudian ditinjau dari beberapa daftar pustaka. Hasil pengabdian menunjukkan bahwa terdapat perubahan dan dampak yang baik bagi siswa, guru maupun sekolah seperti meningkatnya kualitas keterampilan membaca siswa, meningkatnya kualitas numerasi yang berkaitan dengan belajar perkalian, pembagian, pengurangan dan penjumlahan, mewadahi kegiatan bermain sambil belajar, memfasilitasi ruang baca, melakukan pendampingan belajar serta membantu adaptasi teknologi dan keadminitrasian. Masing-masing peserta didik terlihat antusias dan sungguh-sungguh dalam pelaksanaan kegiatan. Peserta didik juga terdorong untuk aktif dan terdorong dirinya untuk memacu semangat dan motivasi belajar.
Expresiones de la violencia patriarcal en adolescentes mujeres rurales
Authors: Cruz Pérez Oscar , Esteban Silvestre Hildebertha , García Lara Germán Alejandro , Ocaña Zúñiga Jesús , Hernández Solís Soledad
Published: October 2022

La violencia en contra de las mujeres ha sido, en parte, la expresión de un sistema social patriarcal que ha creado dispositivos de control y sometimiento de las mujeres durante el devenir histórico. Este trabajo tuvo como objetivo recuperar los saberes y experiencias de adolescentes mujeres escolarizadas de bachillerato alrededor de la sexualidad, las prácticas sexuales y las relaciones con los padres/madres de una comunidad rural de Chiapas, México. Desde una perspectiva cualitativa fenomenológica, con un enfoque de análisis feminista y utilizando la técnica de grupos focales, se dio voz a 14 mujeres adolescentes con edades entre 14 y 17 años. En los discursos, las participantes evidenciaron que las expresiones de la violencia patriarcal se dan a través de la romantización de las relaciones amorosas en la pareja heterosexual; el ocultamiento, por parte de padres/madres, de información pertinente que las oriente sobre la sexualidad y las prácticas sexuales, y a través de tres formas específicas de sometimiento ante las normas patriarcales: no caer en la desgracia de un embarazo a temprana edad, la maternidad obligada en la prohibición del aborto y la reclusión al ámbito doméstico como consecuencia de la maternidad. Se concluye, a partir de las experiencias más significativas expresadas por las jóvenes adolescentes alrededor de la sexualidad, las prácticas sexuales y su relación con los tutores adultos que las rodean, que sigue vigente y de manera profunda en la subjetividad y los cuerpos de las adolescentes la reproducción de las relaciones de género que han perpetuado la subordinación de las mujeres frente al poder masculino, propio de las sociedades patriarcales.
Ética, estética y política de la complejidad en la escuela: enseñar competencias sociales en educación infantil
Authors: González Milea Arasy
Published: October 2022

En el presente trabajo se presenta un análisis de la situación de la enseñanza en la etapa de educación infantil con el propósito de conocer si la escuela responde a las demandas y necesidades de la era digital. Desde la perspectiva del pensamiento complejo, se analiza el papel atribuido a la infancia en la sociedad y en la cultura, y se reivindica la urgencia de atribuir a los niños y niñas el derecho a ejercer la ciudadanía como ciudadanos y ciudadanas del presente, asumiendo un posicionamiento desde el cual se entiende que ellos y ellas son creadores de cultura. Este análisis se realiza desde las tres dimensiones de la complejidad: la ética, la estética y la política, en relación con la infancia y su educación en competencias sociales y responsabilidad ciudadana desde un posicionamiento crítico. Los resultados muestran que la condición del ser humano supone convivir con errores e incertidumbres, con el azar y las paradojas, todos estos elementos de la complejidad, lo cual abre la incógnita: ¿por qué la escuela se ha vuelto un espacio aislado de la cotidianeidad e inerte de espontaneidad? Por ello, se subraya la importancia de crear propuestas que atiendan la complejidad para la enseñanza de competencias sociales para vivir y desarrollarse de forma autónoma en una cultura y realidad complejas.
Pengaruh Efikasi Diri, Keaktifan Berorganisasi, Lingkungan Keluarga dan Locus of Control terhadap Kesiapan Kerja Mahasiswa Universitas Negeri Padang di masa Pandemi Covid-19
Authors: Nasution Riska Adilah , Syofyan Rita , Marna Jean Elikal
Published: October 2022

The purpose of this study was to determine the effect of self-efficacy, organizational activity, family environment and locus of control on the work readiness of Padang State University students during the Covid-19 pandemic. This type of research was an associative descriptive study with a population of 100 Padang State University students. The sampling technique is proportional random sampling with a sample of 100 students. Data collection techniques are carried out by distributing questionnaires. To ensure the questionnaire used in this study, validity and reliability tests were used. The data analysis technique used is path analysis with the help of SPSS 24. Before performing the data analysis technique, the classical assumption test is carried out using the normality test and homogeneity test. The results of the research on sub structure 1 show that the variables of self-efficacy, organizational activity and family environment have a positive and significant effect on the locus of control of Padang State University students. And the results of research in sub structure 2 show that the variables of self-efficacy and locus of control have a positive and significant effect on work readiness of Padang State University students while the variables of organizational activity and family environment are not proven to have a significant effect on work readiness of Padang State University students. Keywords: self-efficacy, organizational activity, family environment, locus of control, job readiness
The Effect of GA3 and Salicylic Acid Combination on the Germination and Growth of Kelinci Variety Peanut Sprouts (Arachis Hypogaea L.) Under Aluminum Casting
Authors: Primandari Dea , Lande Martha Lulus , Zulkifli Zulkifli , Yulianty Yulianty
Published: October 2022

This research aims to determine the influence of GA3 and salicylic acid on the germination and growth of Kelinci variety peanuts under aluminum casting. This study was conducted in a 2x3 factorial experiment. Factor A is AL(OH)3 with two concentration levels: 0% b/v and 5% w/v. Factor B is a growing stimulant substance (ZPT) with three levels: GA3 (0.1 % w/v), salicylic acid (0.1% w/v), and GA3 + salicylic acid. The parameters in this study are 1) germinating power, 2) length of sprouts, 3) fresh weight of sprouts, 4) dry weight of sprouts and 5) relative moisture content. The Tukey test determines the main effect, and an F test determines the simple effect. From the research results, the researchers conclude that the mixture of GA3 solution and SA solution is more effective than a single solution of GA3 or SA in overcoming the aluminum's toxic effects on the germination and sprout growth of Kelinci variety peanut.
Antagonistic Activity of the Endophy Fungi of Lime Plant (Citrus Aurantifolia) on Candida Albicans
Authors: Aji Oktira Roka , Wahyuni Sri
Published: October 2022

This study aims to isolate and determine the antagonistic activity of lime's endophytic mushrooms on Candida albicans. Antagonism tests were performed in vitro with dual culture methods. The study obtained 14 isolates that were successfully isolated from the stem, roots, leaves, and peels of lime fruit. A total of 8 isolates could inhibit Candida albicans through antibiosis mechanisms and healthy competition. The isolates with the highest inhibition percentage were KD2 and MA1 (42.85%).
Preliminary Selection of Potential Probiotic Lactic Acid Bacteria Isolated from Cocoa Beans (Theobroma cacao)
Authors: Amarantini Charis , Prakasita Vinsa Cantya , Sema Maria Trivonia
Published: October 2022

This study aims to isolate and identify LABs that spontaneously grow fermented cocoa beans that have the potential as probiotics. The isolation was carried out selectively using an MRS agar medium supplemented with 1% CaCO3. LAB's potential as a probiotic was selected based on the acid resistance test, bile salt resistance test, and antimicrobial activity test. The results showed that three isolates of lactic acid bacteria, namely strains K1B1, K2T2, and K3B4 were tolerant of gastric acid's pH conditions (pH 2.5, pH 3, and pH 4). They also can survive the bile salts (0.3%, 0, 5%, and 1%) and have antibacterial characteristics. The three isolates were identified as Lactobacillus Plantarum species (ID 99.9%).
Developing Android-Based Educational Puzzle Game For Biology To Improve Students' Cognitive Ability
Authors: Haka Nukhbatul Bidayati , Handayani Putri Wiwin , Anggoro Bambang Sri , Hamid Abdul
Published: October 2022

This research aims to determine the development, feasibility, and effectiveness of an android-based educational puzzle game for biology learning. This research is a research and development (RD) with Brog and Gall procedure up to the ninth stage. The instruments employed are the media expert validation questionnaire, the language expert validation questionnaire, the material expert validation questionnaire, the student response questionnaire, cognitive ability tests, and documentation. Based on the validation by the experts, the media experts validation percentage was 98.91%, the language expert validation percentage was 92.05%, the material expert validation percentage was 98.5%, and the students' response questionnaire percentage was 85.75%. All the results were categorized as highly feasible. Furthermore, the effectiveness of the product based on the independent sample t-test was tobserved (5. 57) was higher than tcritical (1.71) with an average N-gain value in the experimental class of 0.64 and the control class of 0.40. Based on the assessment, the Android-based educational puzzle game for biology on virus material can improve students’ cognitive abilities
Establishing Students' Environmental Care Character At The Adiwiyata School In The Framework Of Education For Sustainable Development (ESD)
Authors: Sari Hilda Putri , Chandra Edy , Roviati Evi
Published: October 2022

This study aims to analyze students' environmental care character and the obstacles faced by the Adiwiyata school. This study employed the descriptive qualitative method with the case study approach. The researchers analyzed the students' environmental care character with the Adiwiyata program, specifically SMAN 1 Dukuntang. In the aspect of classroom hygiene management, the school was in the very good category. Next, in the environmental education management aspect, the school was also in the very good category. The school also foster students' creativity through the DLS program by creating environmentally friendly products with economic value. The obstacle faced by the Adiwiyata school in shaping the students'  environmental care character was the need for free time for students to participate in environmental activities outside of school during the implementation of the SBL program.
Online Learning in Pandemic Era with Edmodo Application on Excretory System Material
Authors: Rosdiana Riski
Published: October 2022

This research aims to describe the influence of Problem-Based Learning (PBL) with Edmodo on students' learning outcomes. The research design was Matching Pretest-Posttest Control Group Design. The research samples were the students of class XI MIA 3 and MIA 4 of SMAN 1 Pagerbarang Tegal. The researchers collected the data using tests and questionnaires. The analysis revealed that the PBL model with Edmodo In the excretory system material obtained an average percentage of 88% in meeting 1,  86% in meeting 2, and 88% in meeting 3. Furthermore, the average value of syntax 1 was 87%, syntax 2 was 98%, syntax 3 was 87%, syntax 4 was 86%, and syntax 5 was 88%. All syntaxes were in the moderate category except for the second syntax. There was an increase in the learning outcome between the experimental and control classes, where the experimental class scored higher than the control class
The Effect of Tempe Yeast Inoculum Amount on the Quantity and Quality of Cocos nucifera viridis Virgin Coconut Oil (VCO)
Authors: Adystia Yusdike , Rahmawati Meidina , Anam Khairul , Iswari Retno Sri , Dewi Pramesti
Published: October 2022

This study aims to determine the effect of tempeh yeast inoculum on the color, odor, and yield in the manufacture of Virgin Coconut Oil (VCO) from Cocos nucifera viridis. This research was conducted in November 2020 in Brebes, Magelang, and Lampung. This research employed the descriptive quantitative method. The population of this experiment was coconut fruit found in Lampung, Brebes, and Magelang. The sample used was green coconut (Cocos nucifera viridis) found in Lampung, Brebes, and Magelang. The working procedure of this research consisted of fermenting the sample and observing the oil produced by Virgin Coconut Oil. This research's data collection techniques were observation, documentation, and products calculation. Based on the observations, the researchers found the highest yield in the experiment of 80 ml cream with an inoculum of 8 grams (30.4%), followed by a volume of 80 ml of cream with a 6-gram inoculum (28.4%). The smallest yield was formed at a volume of 80 ml cream with inoculum 4 grams (14.6%). The VCO obtained in this research had a distinctive aroma of coconut oil and was clear in color. Therefore, the amount of tempeh yeast inoculum affects the color, odor, and yield in the manufacture of Virgin Coconut Oil (VCO) from Cocos nucifera viridis.
Contextual Teaching and Learning Model Assisted by Zoom Cloud Meetings: The Impact on Students' Critical Thinking Skills
Authors: Sari Diana Permata , Puspita Laila , Handoko Akbar
Published: October 2022

This research aimed to investigate the influence of the Contextual Teaching and Learning (CTL) model assisted by Zoom Cloud Meeting on learners' critical thinking skills. This research employed a quasi-experimental design. The population of the study was all tenth graders of MAN 2 Tulang Bawang Barat. The samples were class X MIA 2 as the experimental class and class X MIA 3 as the control class. Tests were utilized as the data collecting technique. The researchers performed the normality and homogeneity tests on the research data before performing the independent sample t-test as the hypothesis test. Based on the test results on the Pre-test and Post-test data, the N-gain values tested using the t-test obtained a significance value (2-tailed) of 0, 00. The Contextual Teaching and Learning model assisted by Zoom Cloud Meeting improved students' critical thinking skills. Based on the research, the Contextual Teaching and Learning assisted by Zoom Cloud Meeting could improve students' critical thinking skills.
Effects of Tapak Dara Leaves Extract on Kidney Histology of Aspartame-Induced Mice
Authors: Utami Eva Tyas , Kurnia Indah Salsabila , Mahriani Mahriani
Published: October 2022

This study aimed to determine the effect of Catharanthus roseus leaves extract on kidney histology of mice aspartame-induced. Mice were divided into 4 groups, namely the negative control group (K-) without treatment, the positive control (K+) given aspartame 0.02 mg/day, the dose group 1 (D1) was given aspartame 0.02 mg/day and continued with the C. roseus leaves extract at a dose of 0.42 mg/kg. Group 2 (D2) was given aspartame 0.02 mg/day followed by C. roseus leaf extract at a dose of 0.84 mg/kg BW. IP administered aspartame for 14 days, and C. roseus leaves extract was administered by gavage for 12 days. The data obtained were analyzed by One Way ANOVA and DMRT test with a significance level of 0.05. The results showed that the induction of aspartame at a dose of 0.02 mg/day in mice increased the average number of proximal tubular necrosis cells. Catharanthus roseus leaves extract administration at 0.42 mg/kg BW and 0.84 mg/kg BW for 12 days can reduce the number of proximal tubular necrosis cells in aspartame-induced mice. Thus it can be concluded that the administration of C. roseus leaves extract can reduce the proximal kidney tubules necrosis but has not been able to reach normal conditions yet.
Developing Student Worksheet Based on System Approach on Water Cycle Topic of Water Conservation Learning at Junior High School
Authors: Khalifah Nur , Riyanto Riyanto , Nazip Khiron , Meilinda Meilinda
Published: October 2022

Air merupakan komponen penting yang harus ada di bumi dan tetap harus di jaga kelestariannya dengan konservasi air yang diajarkan sejak dini, melalui sistem belajar yang kompleks pada materi siklus air dan mengaitkannya dengan berpikir sistem dikembangkanlah LKPD berbasis system approach pada topik siklus air di SMP yang di uji kevalidan dan kepraktisannya melalui metode Developmental Research tipe II oleh Richey Klein (2005) dengan dua tahapan yaitu fase eksplorasi dan uji coba kepada peserta didik. Fase uji coba dilakukan melalui metode lesson study yang diobservasi oleh lima orang observer dengan tujuan untuk mengetahui aktivitas siswa selama pembelajaran berlangsung. Hasil LKPD divalidasi oleh lima orang validator untuk menguji kevalidan LKPD dengan menggunakan skala likert. Teknik analisis data dilakukan dengan analisis data kuantitatif dan kualitatif. Hasil yang diperoleh berupa persentasi uji kevalidan dengan rata-rata78% yang artinya LKPD sudah dalam kategori valid. Kemudian dari hasil uji praktikalitas peserta didik diperoleh hasil rata-rata 81,02% yang menunjukkan kategori sangat praktis. Sehingga di hasilkanlah LKPD yang mempunyai nilai kevalidan dan kepraktisan yang layak digunakan dalam proses pembelajaran siklus air.
The Vitamin C Potential of Sorrel Tree (Averrhoa bilimbi) as LATEX Coagulant
Authors: Anam Khairul , Kamelia Marlina , Faridah Indah
Published: October 2022

This research aims to determine the vitamin C potential of tree sorrels (Averrhoa bilimbi) as a natural latex coagulant. The researchers employed the Completely Randomized Design (CRD) method. The method consisted of three repetitions with five treatments, namely negative control (without clotting) and positive control, by administering tree sorrel extract (Averrhoa bilimbi) with a volume of 5 ml, 10 ml, 15, and 20 ml. The researchers tested the vitamin C levels using UV-VIS Spectrophotometry DR 6000 with a wavelength of 265 nm to 271 nm. Furthermore, the data were analyzed using the One-Way ANOVA statistical test and the LSD to determine the most effective volume as a latex coagulant. The quantitative data were the clotting time and latex weight. The results showed that tree sorrel extract could be used as a latex coagulant. The fastest duration (1.18 minutes) and the highest weight (34.30 grams) of latex were found in the 20 ml volume. At the same time, the lowest yield was at a volume of 5 ml with a clotting time of 5.4 minutes and a weight of 18.62 grams.
Cytological analysis of Kepok Abu Polyploid's Banana Plantlets (Musa paradisiaca L.) Due to Colchicine's Application in Tissue Culture Media
Authors: Istiqomah Istiqomah , Wahyuningsih Sri , Ernawiati Eti , Agustrina Rochmah
Published: October 2022

This research aimed to determine the mitotic abnormalities, changes in the number of chromosomes, mitotic index, and the number and length of kepok abu banana plantlet roots due to administration of 0.1% colchicine in tissue culture media. This research was performed at the Botanical Laboratory of the Biology Department, Faculty of Mathematics and Natural Sciences, UNILA. This research compared the cytology by employing the Squash method between root tip cells of kepok abu banana plantlets after administering 0.1% colchicine and the control group. The researchers analyzed the data descriptively and presented them in tables and bar charts. The results showed that the administration of 0.1% colchicine resulted in mitotic abnormalities. It also increased the number of chromosomes in the controls 2n=3x and 2n=3x+4. The mitotic index decreased, and the average number of roots was lower. However, the size was longer compared to the control group.
The Besemah Community’s Indigenous Knowledge of Tebat Bukit Conservation in Tebat Benawa Village
Authors: Efendi Doki , Meilinda Meilinda , Riyanto Riyanto
Published: October 2022

This research aims at finding out the form of indigenous knowledge of the Tebat Benawa Community toward Tebat Bukit conservation. The researchers conducted this descriptive study from December 2019 to January 2020. The object of the study was the Tebat Benawa Village Community. The data were collected through literature study, observation, and semi-structured interviews. The results show that the community has five indigenous knowledge in the implementation of Tebat Bukit conservation which is classified into three indicators: the availability of tebat (artificial lake) water, Tebat Bukit, and ghumbus; the use of tebat water called Siring Ayik; tebat and its water management, namely nebasi jalan, ghumbus, and society knowledge transfer in preserving Tebat Bukit through direct experience sharing. The experience sharing is conducted by fishing in tebat, implementing indigenous tradition, socializing with the village administration, giving parental advice, and fostering petatah-petitih (oral tradition on local wisdom).
The Effectiveness of Google Classroom Learning Applications on Student Learning Outcomes
Authors: Anas Muh , Murti Warda
Published: October 2022

This research aimed to determine the effectiveness of Google Classroom learning on the learning outcomes of students of STKIP Pembangunan Indonesia at the Biology Study Program. The benefit of this research is that the results are expected to contribute to the teaching and learning process that lecturers will carry out, especially the application of the Google Classroom in improving students’ learning outcomes. The researchers employed the quantitative approach with a pre-experimental design of one group pretest-posttest, which provided a pretest before the treatment. After the treatment, the researchers administered a posttest on the Vertebrate Zoology course. The data collection technique applied in this research was a description test administered during the pretest and posttest. This research found that the students’ learning outcomes in the pretest were 36% in the completeness level. There was an increase in the posttest with a 72% completeness level. The results of hypothesis testing using an independent sample t-test obtained  value of 3,149, which was higher than tobserved of 1.67. The results showed that students’ learning outcomes after using Google Classroom were significantly better than before the application of Google Classroom. This research proved that Google Classroom was an online learning method that can improve the quality of education, especially students’ learning outcomes, and could overcome the constricted learning process with the availability of actual classrooms.
Acute Toxicity of Household-Scale Lebak Batik Industrial Wastewater on Common Carp
Authors: Oktavia Swastika , Novi Cory
Published: October 2022

The concentration of Lebak Batik industrial wastewater contains the pollutant element of lead metal that negatively impacts organisms' content in the water. This study was focused on the acute toxicity of household-scale Lebak Batik industrial wastewater on carp. The methods used were waste characteristics test, animal acclimatization, acute toxicity test for 96 hours with 0, 10, 20, 30, 40, and 50% treatments, measurement of environmental parameters, and data analysis using probit analysis. The results showed that the lethal time (LT50) and lethal concentration (LC50) for 96 hours of treatment were 1,8 days and 8,56%, respectively, with a Toxicity Unit Area (TUa) of 11,68. This proved that the wastewater from the Lebak batik industry had a major effect on causing acute toxicity.
Diversity and Abundance of Dragonfly (Anisoptera) and Damselfly (Zygoptera) at Sabo Dam Complang, Kediri, East Java, Indonesia
Authors: Susanto Muhamad Azmi Dwi , Arianti Okta Fina
Published: October 2022

This research aimed to identify and analyze the diversity and abundance of dragonflies and damselflies species at Sabo Dam Complang. The samples were taken using the VES (Visual Encounter Survey) method and two transect methods: line transects, and belt transects. The data obtained were analyzed using the Shannon-Wienner species diversity index (H') and the relative abundance of species (RA). The results showed that at Sabo Dam Complang, the researchers found 11 species with a total of 63 individuals dragonfly of Anisoptera suborder and nine species with a total of 160 individuals from 5 families in the Zygoptera suborder. The results of this research show a diversity index value of 2.59.
An Implementation of Rotating Trio Exchange (RTE) Assisted by Coup Card toward Biology Learning Outcome
Authors: Nur Rizki Amalia , Nurhidayah Nurhidayah
Published: October 2022

This research aims at finding the effect of the Rotating Trio Exchange (RTE) model assisted by the couple card media on the biology learning outcomes of SMAS DDI Maros. The research method was quantitative with a quasi-experimental and non-equivalent group pretest-posttest design. The research results were obtained through hypothesis testing. The pretest value in the control and the experimental classes was 0.138, where Sig. was higher than α. Therefore, there was no significant learning outcomes difference in the pretest values in both classes. Furthermore, the obtained posttest value was 0.000, where Sig. was lower than α. Therefore, there were significant learning outcomes differences between the two classes.
Freshwater Trophic State of Sindang Heula Dam in Terms of Chlorophyl Content
Authors: KN Aditya Rahman , Khastini Rida Oktorida , Hardianti Feni
Published: October 2022

This study aims to determine the trophic status of the waters of Sindang Heula Dam in terms of chlorophyll-a content and its relationship with other water parameters. The study was conducted in April 2021. The sampling location was determined by purposive sampling method with 5 stations. Sampling of chlorophyll-a was carried out using a composite sampling technique, which was then tested by spectrophotometric methods. Physical and chemical parameters of the waters measured included temperature, brightness, TSS, pH, DO, BOD, nitrate, nitrite, and phosphate. The results showed that the content of chlorophyll-a ranged from 12,733–63,457 g/L. Based on the results of the study, the waters of the Sindang Heula Dam have a eutrophic status to hypereutrophic, this indicates that the waters have been heavily polluted due to high levels of nutrients. ABSTRAK: Penelitian ini bertujuan untuk mengetahui status trofik perairan Bendungan Sindang Heula ditinjau dari kandungan klorofil-a serta hubungannya dengan parameter perairan lainnya. Penelitian dilakukan pada bulan April 2021. Lokasi pengambilan sampel ditentukan dengan metode purposive sampling sebanyak 5 stasiun. Pengambilan sampel klorofil-a dilakukan dengan teknik composite sampling, yang selanjutnya diuji dengan metode spektrofotometri. Parameter fisika dan kimia perairan yang diukur meliputi suhu, kecerahan, TSS, pH, DO, BOD, nitrat, nitrit, dan fosfat. Hasil penelitian menunjukkan bahwa kandungan klorofil-a berkisar 12,733–63,457 μg/L. Berdasarkan hasil penelitian maka perairan Bendungan Sindang Heula memiliki status eutrofik menuju hipereutrofik, hal ini menunjukkan perairan sudah tercemar berat akibat tingginya unsur hara.
Taxonomic Affinity of Poaceae Family Based on Morphological Characters
Authors: Rahman Nova Fauziah , Assykuri Isna Izzmah , Ainilla Khan Naila Rachmania , Pradana Bayu Adhel , Akmalia Hafidha Asni
Published: October 2022

This study aims to analyze the relationship among species in the Poaceae family based on their similarities in morphological characteristics. The method used was a taximetry method describing the taxonomic affinity based on morphological characteristics of plants, including leaves, stems, roots, flowers, and fruit. Morphological character data was compiled on Ms Excel, representing the character of each organ and morphological scoring data. Furthermore, the scoring results were analyzed with the NTSys-PC version 2.02i program, and the final results were presented as a dendrogram. The research results show five species of members of the Poaceae family, including Zea mays, Oryza sativa, Saccharum officinarum, Pennisetum purpureum and Cymbopogon citratus, showed that Zea mays and Cymbopogon citratus had the closest affinity with a coefficient of 0.47. In contrast, the most distant affinity was Pennisetum purpureum, with a coefficient of 0.25.ABSTRAK: Tujuan dari penelitian ini untuk menganalisis kekerabatan antar spesies dalam satu famili Poaceae berdasarkan persamaan sifat dan ciri morfologinya. Metode yang digunakan adalah metode taksimetri untuk menjelaskan kekebrabatan fenetik berdasarkan karakter morfologi tumbuhan meliputi daun, batang, akar, bunga, dan buah. Data karakter morfologi disusun pada Matriks Ms. Excel yang mewakili karakter masing-masing organ, dan data skoring morfologis. Selanjutnya hasil skoring dianalisis dengan program NTSys-PC versi 2.02i dan hasil akhir disajikan dalam bentuk dendogram. Berdasarkan hasil penelitian lima spesies anggota famili Poaceae, antara lain Zea mays, Oryza sativa, Saccharum officinarum, Pennisetum purpureum dan Cymbopogon citratus menunjukkan bahwa hubungan kekerabatan fenetik Zea mays dan Cymbopogon citratus memiliki hubungan kekerabatan yang paling dekat dengan koefisien 0.47 sedangkan kekerabatan yang paling jauh adalah Pennisetum purpureum dengan koefisien 0.25.
Potential Exploration and The Morphology of Zingiberaceae Leaves as Medicinal Plants in Bandar Lampung
Authors: Octariyanti Diah Ayu Putri , Yulianty Yulianty , Lande Martha Lulus , Suratman Suratman
Published: October 2022

This study aimed to determine how many species of Zingiberaceae are in Bandar Lampung through leaf morphology observations. This research was conducted from January to March 2021 at the Botanical Laboratory, Department of Biology, Faculty of Mathematics and Natural Sciences, University of Lampung. The sampling of Zingiberaceae leaves was determined via a simple random sampling technique. Morphological observations were performed by observing the narrowest and widest leaves that looked intact and not ravaged by disease. The results showed that 16 species of Zingiberaceae were found in Bandar Lampung, which was divided into five genera. Also, three variations of leaf shape, leaf-spine, and leaf sitting were found.ABSTRAK: Tujuan dilakukan penelitian ini yaitu untuk mengetahui berapa banyak spesies Zingiberaceae di Bandar Lampung melalui pengamatan morfologi daun. Penelitian ini dilakukan pada bulan Januari-Maret 2021 di Laboratorium Botani Jurusan Biologi Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Lampung. Pengambilan sampel daun Zingiberaceae dalam penelitian ini dilakukan dengan metode sampling acak sederhana. Pengamatan morfologi dilakukan dengan mengamati daun tersempit dan terlebar yang tampak utuh dan tidak terserang penyakit. Hasil penelitian menunjukkan bahwa ditemukan 16 jenis Zingiberaceae di Bandar Lampung yang terbagi ke dalam 5 marga. Selain itu, ditemukan tiga variasi bentuk daun, pertulangan daun, dan duduk daun.
Berberine: A Potential Inhibitor of Dihydrofolate Reductase- Thymidylate Synthase (DHFR-TS) for Malaria
Authors: Bare Yohanes , Sari Dewi Ratih Tirto , Nita Angeliana Desimaris , Taek Maximus M
Published: October 2022

The goal of this study was to genetically link natural materials derived from Tinospora crispa L with Berberine to dihydrofolate reductase-thymidylate synthase (DHFR-TS). Method: The ligand berberine (CID: 2353) was obtained from Pubchem, while the protein DHFR-TS (PDB ID 2bl9) was obtained from Protein Data Bank. The ligands and proteins interacted with HEX 8.0.0.0 and were visualized with Discovery Studio. The researchers discovered a positive interaction between berberine and DHFR-TS, observed at four amino acid residues that bind to the protein TYR125, ILE121, LEU45, and MET54. Van der Waals interactions, hydrogen bonds, Pi-Sulfur, Pi-Alkyl, and Pi-Stalked interactions all contribute to strength and stability. In conclusion, berberine has the potential to act as a DHFR-TS inhibitor and thus prevent malaria.ABSTRAK: Tujuan penelitian ini adalah memanfaatkan bahan alam yang berasal dari Tinospora crispa L dengan kandungan utama Berberin dengan dihydrofolate reductase-thymidylate synthase (DHFR-TS) secara genetik. Metode, Ligan berberin (CID: 2353 ) diperoleh dari Pubchem sedangkan protein DHFR-TS (PDB ID 2bl9) diperoleh dari Protein Data Bank, ligan dan protein diinteraksikan menggunakan HEX 8.0.0.0 dan divisualisasikan menggunakan discovery studio. Ditemukan interaksi positif antara berberin dan DHFR-TS yang menunjukkan interaksi pada empat residu asam amino yang berikatan dengan protein. Mereka adalah TYR125, ILE121, LEU45 dan MET54. Beberapa interaksi yang dilakukan Van der Waals, ikatan hidrogen, Pi-Sulfur, Pi-Alkyl dan Pi-Stalked juga memberikan dukungan dalam rangka meningkatkan kekuatan dan stabilisasi. Kesimpulannya, berberin memiliki potensi fungsi sebagai penghambat DHFR-TS dan mengarah pada malaria.
The Development of POE-based (Predict, Observe, and Explain) E-Student Worksheet for Eleventh-Grade Plant Histology Subject
Authors: Wulandari Rina Wulan , Nofina Mufida
Published: October 2022

This research developed electronic student worksheet (e-student worksheet) based on POE (Predict, Observe, and Explain) using the Liveworksheets feature. The research method was RD (Research and Development) with a 4-D model, namely define, design, develop, and disseminate. There were three data collection techniques in this research, namely interview, questionnaire, and N-gain from the pretest and posttest scores. The analyzed data using qualitative descriptive analysis. The results showed that (1) the average percentage of e-student worksheet feasibility obtained was 92.90% with material expert validators of 94.23%, media expert validators of 88.23%, and practitioner validators of 96.25%. Therefore, the POE-based e-student worksheet can be used with a very valid or very feasible category. (2) The percentage obtained from student responses was 85% with a very good category. (3) The N-Gain value obtained was 0.39 with a medium category. Thus, the development of e-student worksheet based on POE (Predict, Observe, and Explain) on plant tissue material for the eleventh-grade students can be used with a very feasible category.ABSTRAK: Penelitian ini bertujuan mengembangkan lembar kerja siswa elektronik (e-student worksheet) berbasis POE (Predict, Observe, and Explain) dengan menggunakan fitur Liveworksheets. Metode penelitian yang digunakan adalah RD (Research and Development) dengan model 4-D, yaitu define, design, develop, dan distribute. Ada tiga teknik pengumpulan data dalam penelitian ini, yaitu wawancara, angket, dan N-gain dari nilai pretest dan posttest. Teknik analisis yang digunakan deskriptif kualitatif. Hasil penelitian menunjukkan bahwa (1) rata-rata persentase kelayakan LKS yang diperoleh adalah 92,90% dengan validator ahli materi 94,23%, validator ahli media 88,23%, dan validator praktisi 96,25%. Oleh karena itu, LKS e-student berbasis POE dapat digunakan dengan kategori sangat valid atau sangat layak. (2) Persentase yang diperoleh dari respon siswa sebesar 85% dengan kategori sangat baik. (3) Nilai N-Gain yang diperoleh sebesar 0,39 dengan kategori sedang. Dengan demikian, pengembangan LKS berbasis POE (Predict, Observe, and Explain) pada materi jaringan tumbuhan untuk siswa kelas XI dapat digunakan dengan kategori sangat layak.
The Population Dynamics of Belanger's Croaker (Johnius belangerii) at Barumun River, Panai Hilir District, Labuhanbatu Regency
Authors: Maryani Sri , Machrizal Rusdi
Published: October 2022

This study aims to determine the population dynamics of J. belangerii fish in the waters of the Barumun River, Labuhanbatu Regency. Sampling was carried out for 3 months, starting in October – December 2021. The results showed the relationship between length and weight of J. belangerii fish was negative allometric with a b value of 0.713 (b3). The population of J. belangerii was dominated by individual lengths between 14.5 - 38 cm with a body weight range of 30-80 grams. The length of the totic acid (L∞) is 41.55 cm with a growth coefficient (K) of 0.430 per year. Natural mortality (M) and fishing mortality (F) were 0.937 and 0.892 per year, respectively. The level of exploitation (E) obtained a value of 0.35 . The condition of the population of J. belangerii based on the value of (F),(N),(E) is not in a state of over-exploitation.ABSTRAK: Penelitian ini bertujuan untuk mengetahui dinamika populasi ikan J. belangerii yang ada di Perairan Sungai Barumun Kabupaten Labuhanbatu. Pengambilan sampel dilakukan selama 3 bulan, di mulai pada Oktober – Desember 2021. Hasil penelitian menunjukkan hubungan Panjang berat ikan J. belangerii adalah alometrik negatif dengan nilai b 0,713 (b3). Populasi ikan J. belangerii didominasi ukuran panjang individu antara 14,5 - 38 cm dengan kisaran berat tubuh 30-80 gram. Panjang asim totik (L∞) adalah 41,55 cm dengan koefisien pertumbuhan (K) adalah 0,430 pertahun. Mortalitas alami (M) dan mortalitas penangkapan (F) masing-masing sebesar 0,937 dan 0,892 per tahun. Tingkat eksploitasi (E) diperoleh nilai 0,35 . Kondisi populasi J. belangerii berdasarkan nilai (F),(N),(E) tidak dalam keadaan over exploitasi.
Conformity Analysis of HOTS (Higher-order Thinking Skills) Based on Critical Thinking in the Evaluation of High School Biology Learning in the East Cirebon Region
Authors: Mudaningrat Ajeng , Maryuningsih Yuyun , Anugrah Indah Rizki
Published: October 2022

This study aims to analyze the suitability of HOTS (Higher-order Thinking Skills) based on critical thinking on the Odd Semester Final Examination questions for high school biology lessons in the East Cirebon Region. The research subjects were schools in the Cirebon area, namely SMAN 1 Lemahabang, MAN 3 Buntet Pesantren Cirebon and MA NU Putri Buntet Pesantren Cirebon. Data analysis is presented in the form of percentages and then described based on critical thinking indicators (characteristic thinking) based on Facione, (2011) on the Biology Final Semester Exam (UAS). The odd semester final exam (UAS) for biology subjects already contains critical thinking skills, but the percentage is still low. The most dominating indicator is interpretation. Based on this research, it shows that the questions made by the teacher are not sufficient to cultivate students' critical thinking skillsABSTRAK: Penelitian ini bertujuan untuk menganalisis kesesuaian HOTS (Higher-order Thinking Skills) berdasarkan critical thinking pada soal Ujian Akhir Semester ganjil pelajaran biologi SMA se-Wilayah Cirebon Timur. Subjek penelitian adalah sekolah yang ada di wilayah Cirebon yaitu SMAN 1 Lemahabang, MAN 3 Buntet Pesantren Cirebon dan MA NU Putri Buntet Pesantren Cirebon. Analisis data disajikan dalam bentuk persentase selanjutnya dideskripsikan berdasarkan indikator berpikir kritis (ciritical thinking) berdasarkan Facione, (2011) pada soal Ujian Akhir Semester (UAS) biologi. Ujian Akhir Semester (UAS) ganjil mata pelajaran biologi sudah memuat keterampilan berpikir kritis, namun dengan persentase yang masih rendah. Indikator yang paling mendominasi adalah interpretasiBerdasarkan penelitian tersebut menunjukkan bahwa soal yang dibuat oleh guru belum memadai untuk menumbuhkan keterampilan berpikir kritis siswa
The Effect of STEM-ThingLink Learning Design on Students' Conceptual Understanding of Nutrition
Authors: Al Fatihah Inayah , Ramli Murni , Rahardjo Dwi Teguh
Published: October 2022

This study aims to determine the effect of the Science, Technology, Engineering, and Mathematics (STEM)-ThingLink learning design on students' conceptual understanding. Thinglink.com is used as a platform to present problems and set STEM projects, on the topic of nutrition. This research is a quasiexperimental research with One-Shot Case Pretest-Posttest Design. Data was collected by means of pre-test and post-test to assess the improvement of students' conceptual understanding. The hypothesis test used is the paired sample t test. The results showed that there was an increase in students' understanding of the material concepts, which was marked by an increase in the pre-test score (M=54.26, SD=14.73) to post-test scores (M=72.93, SD=12.63). Paired sample t-test also showed significant results, sig. (0.03 0.05) which means H0 is rejected. It can be concluded that the STEM-ThingLink learning design has a positive effect on students' understanding of nutrition concepts.ABSTRAK: Penelitian ini bertujuan untuk mengetahui pengaruh desain pembelajaran Science, Technology, Engineering, and Mathematics (STEM)-ThingLink terhadap pemahaman konsep siswa. Model STEM-ThingLink menerapkan Engineering Design Process (EDP) dalam sintaksnya. Thinglink.com digunakan sebagai platform untuk menyajikan masalah dan menetapkan proyek STEM. Aplikasi difokuskan pada topik gizi yang diajarkan kepada siswa kelas delapan IPA di sekolah menengah pertama. Penelitian ini merupakan penelitian eksperimen semu dengan desain One-Shot Case Pretest-Posttest Design. Model pembelajaran STEM-ThingLink diterapkan pada kelas eksperimen. Pengumpulan data dilakukan dengan pre-test dan post-test untuk menilai peningkatan pemahaman konsep siswa. Uji hipotesis yang digunakan adalah uji t sampel berpasangan. Hasil penelitian menunjukkan adanya peningkatan pemahaman konsep materi siswa yang ditandai dengan peningkatan nilai pre-test (M=54.26, SD=14.73) menjadi nilai post-test (M=72.93, SD=12.63). Uji-t sampel berpasangan juga menunjukkan hasil yang signifikan, sig. (0,03 0,05) yang berarti H0 ditolak. Dapat disimpulkan bahwa desain pembelajaran STEM-ThingLink berpengaruh positif terhadap pemahaman konsep gizi siswa.