bluuebunny/crossref_metadata_2025 huggingface dataset:
Analysis of Cd and Cu Heavy Metal Content in Climbing perch (Anabas testudineus) Derived from Rawa Taliwang Lake, West Sumbawa Regency
Authors: Khairuddin Khairuddin , Yamin M. , Kusmiyati Kusmiyati
Published: February 2022

Many species of fish in Rawa Taliwang Lake can be used as bioindicators. Climbing perch (Anabas testudineus) is a species of freshwater fish that is used as a bioindicator. The aims of this study were: Want to know the heavy metal content of Copper (Cu) and Cadmium (Cd) in Climbing perch from Rawa Taliwang Lake to enrich the Environmental Knowledge course material. A special benefit is to protect consumers who consume fish from heavy metal contaminants. The research was conducted in Rawa Taliwang Lake, which is an area that is submerged in water. Methods Data collection was carried out by determining 2 research stations, namely in the east and west of the lake. Next, fishing is done using gill nets. Fish samples were taken from 3 to 4 fish at each station. The fish species taken were Climbing perch (Anabas testudineus). Then each fish sample was put into a plastic bag and then stored in a sample box. The research sample was then analyzed in the West Nusa Tenggara Health, Testing and Calibration laboratory. The data analysis method was carried out by taking muscle tissue from Climbing perch and then analyzing the content of heavy metals in the form of Copper (Cu), and Cadmium (Cd) using an Atomic Absorption Spectrophotometer. Measurement of heavy metals in fish tissue was carried out by adding concentrated HNO3 and HClO4, heated at a temperature of 60-70ÃÂºC for 2-3 hours until the solution was clear. Ready samples were measured by AAS using an air-acetylene flame. The measurement results show the presence of heavy metals Copper (Cu) and Cadmium (Cd) in the fish tissue studied. The conclusion of this study is that the heavy metal content in Climbing perch ÃÂ (Anabas testudineus) originating from Rawa Taliwang Lake to enrich the Environmental knowledge course material is; Copper (Cu) ranged from 0.067 ppm to 0.126 ppm, and Cadmium (Cd) ranged from 0.011 ppm to 0.016 ppm.
Phytoplankton Community as A Bioindicator for Water Quality of Sumi Dam, Bima Regency
Authors: Anas Muhamad Hairil , Japa Lalu , Khairuddin Khairuddin
Published: February 2022

The waters of the Sumi dam have an important role in accordance with the purpose of its construction. Therefore, monitoring of water quality becomes necessary because good water quality is an important requirement for every organism. This study aims to examine the water quality of the Sumi dam based on the community and species diversity of phytoplankton. The sampling location was determined based on the purposive sampling method. Water samples were taken in April 2021 using a 20 micron plankton net and preserved with formalin at a concentration of 4% preservation. The results showed that the identified phytoplankton community in the Sumi Dam consisted of 80 species and 13 classes. The index value of the diversity of phytoplankton species in the Sumi dam is high. Based on the index value of the diversity of phytoplankton species as a bioindicator, the waters of the Sumi dam are included in the unpolluted category.
The Local Knowledge of Medicinal Plants by The Tanjung Merpati Village Community for The Postpartum and Infant Care
Authors: Mariani Yeni , Yusro Fathul , Wardenaar Evy , Indrayani Yuliati
Published: February 2022

Women often experience various health problems with their reproductive organs. They also have to take several treatments during postpartum and infant care. In the community, these treatments generally use medicinal plants and become local knowledge. This study aimed to document the local knowledge of Tanjung Merpati Village community in using medicinal plants for postpartum and infant care. We interviewed a total of 96 respondents, who are the general public in Tanjung Merpati Village. The data obtained were analyzed in the form of use-value (UV), informant consensus factor (ICF), and fidelity level (FL). The analysis results showed 22 species of medicinal plants used for postpartum and infant care. Plants such as kunyit kuning (Curcuma longa), cokur (Kaemperia galanga), entomu (Curcuma xanthorriza), and ginger (Zingiber officinale) have the highest UV values with values respectively (1; 0.96; 0.84 and 0.8). Baby haircare shows the highest ICF value. Several plants have the highest FL value (100), namely manjakani (Quercus infectoria) and asam kanis (Garcinia xanthochymus) (postnatal maternal care), ayau (Litsea sp) (baby poultice), kumis kucing (Orthosiphon aristatus), and coconut (Cocos nucifera) (fever in infants), jackfruit (Artocarpus heterophyllus) (treatment of baby's umbilical wound), lidah buaya (Aloe vera) (baby haircare), mengkudu (Morinda citrifolia) (stomachache and bloating in infants), as well as pisang (Musa sp) and cangkok manis (Sauropus androgynus) (enhance mother breast milk). Conclusions from the results of the study indicate that the people of Tanjung Merpati Village have local knowledge regarding postpartum and infant care, and this knowledge is still well maintained in the community.
Species Richness of Arboreal Beetle in Suranadi Nature Park Area and Its Potential as a Source of Science Learning in Elementary Schools
Authors: Ilhamdi Mohammad Liwa , Syazali Muhammad
Published: February 2022

The beetle data in Suranadi Nature Park is still limited to species that move on the ground. This study aims to analyze: (1) the species richness of the arboreal beetle, and (2) its potential as a science learning resource in elementary schools. This type of research is descriptive research using a qualitative approach. Sampling was carried out on the type of habitat in Suranadi Nature Park, namely the forest area with rice fields and residential areas, air flow and the middle with a dense canopy. The collected samples were identified to determine the species. The richness of this species data is then analyzed qualitatively to determine its potential as a source of science learning in elementary schools. This is done by comparing the species richness data of beetles and elementary thematic books, then the topics are assessed according to their level. The results showed that the species richness of arboreal beetles in Suranadi Nature Park consisted of 19 species from 5 families. The species are Lema sp., Aulacophora similis, Aulacophora quadrimaculata, Aulocophora sp.1, Aulocophora sp.2, Aulocophora sp.3, Aulocophora sp.4, Aulocophora sp.5 Parchicola sp., Podontia sp., Altica cyanea and Lilioceris sp. (family Chrysomelidae), Mimela sp., Mimela langbianica (Rutelidae), Exopholis hypoleuca, Ontophagus taurus, Protaetia fruhstorferi (Scarabaeidae) and Leptura sp. (family Cerambycidae). This arboreal beetle species data may be used as a source for elementary science learning on 33 sub-themes. Of this number, there are two sub-themes that have very appropriate categories, namely Sub-theme 2 The diversity of living things in my environment and Sub-theme 1 Components of the ecosystem.
The Effect of Young Leaves Extract of Arumanis Mango as an Antidepressant in Zebrafish (Danio rerio)
Authors: Ulfa Risda Arba , Cahyanto Tri , Larasati Ikeu Winda , Darniwa Adisty Virakawugi , Adawiyah Ayuni , Fadillah Afriansyah
Published: February 2022

Sustained stress is risked for the emergence of various diseases including disability to depression. Clinically, antidepressant drugs are still the main option even though they are known have side effects for users. Therefore, various types of drug plants that have the potential as natural antidepressants have begun to be used, one of them is the young leaf of mango (Mangifera indica). It is known contains various bioactive compounds, including mangiferin which is useful as an antioxidant, anti-inflammatory, and plays a role in protecting nervous tissue. This study aimed to determine the effect of MangoÃ¢â¬â¢s young leaves extract of Arumanis cultivar as an antidepressant in zebrafish (Danio rerio) exposed to Unpredictable Chronic Stress (UCS). The method used is Completely Randomized Design (CRD) which consists of 3 treatments, namely K (Aquadest); P1 (extract concentration 10ÃÂµg/mL); and P2 (extract concentration 20ÃÂµg/mL). The parameters include the antioxidant activity and behavioral tests, namely new tank diving and light/dark preferences. The results showed that exposure to UCS tends to increased anxiety as indicated by a decrease in exploration on behavioral test. The data showed that the MangoÃ¢â¬â¢s young leaves extract induction with a concentration of 20ÃÂµg/mL obtained the highest value percentage in the exploration of the upper area (36.8 s) and the preference of the bright area (90.8 s) significantly. The induction of mangoÃ¢â¬â¢s young leaves extract has the potential as an antidepressant in zebrafish exposed to UCS with an optimal concentration of 20ÃÂµg/ml.
EFEKTIVITAS PENAMBAHAN BUBUK KULIT PISANG PADA PAKAN BUATAN TERHADAP KECERAHAN WARNA PADA IKAN NEMO (Amphipriion ocellaris
Authors: Faturrahman Faturrahman , Junaidi Muhammad , Setyono Bagus Dwi Hari
Published: February 2022

(Musa balbisiana colla) dalam pakan komersial untuk meningkatkan warna pada ikan nemo (Amphipriion ocellaris). Hewan uji yang digunakan dalam penelitian ini adalah ikan nemo dengan panjang 2-3 cm. Metode yang digunakan dalam penelitian ini adalah metode eksperimental menggunakan Rancangan Acak Lengkap (RAL) yang terdiri dari 5 perlakuan dan 3 kali ulangan sehingga diperoleh 15 unit percobaan, yakni P0 (tanpa penambahan bubuk kulit pisang), P1 (bubuk kulit pisang 5%) P2 (bubuk kulit pisang 10%), P3 (bubuk kulit pisang 15%), P4 (bubuk kulit pisang 20%). Hasil penelitian menunjukkan bahwa adanya pengaruh yang nyata terhadap tingkat kecerahan warna, pertumbuhan panjang, pertumbuhan berat, namun tidak berpengaruh nyata terhadap tingkat kelangsungan hidup, sehingga dilakukan uji lanjut untuk mengetahui perlakuan terbaik dalam menghasilkan peningkatan warna pada ikan nemo, diketahui bahwa P3 (bubuk kulit piang 15%) merupakan perlakuan terbaik pada kecerahan warna dengan persentase 26,30. Perlakuan terbaik pada pertumbuhan panjang mutlak dan berat mutlak ialah P4 (bubuk kulit pisang 20%) dengan persentase panjang 0,60 cm dan persentase berat 0,64g.
BUDIDAYA IKAN PATIN (Pangasius hypopthalmus) BERBASIS BIOFLOK DENGAN PENAMBAHAN MOLASE PADA RATIO C : N BERBEDA
Authors: Fujiana Fujiana , Setyowati Dewi Nur'aeni , Setyono Bagus Dwi Hari
Published: February 2022

Penelitian ini bertujuan untuk menganalisa budidaya ikan patin (Pangasius hypopthalmus) berbasis bioflok dengan penambahan molase pada ratio C : N berbeda. Ikan patin yang digunakan adalah ikan patin dengan panjang rata-rata awal yaitu 6 cm. Wadah yang digunakan adalah kontainer sebanyak 12 buah ukuran volume 40 L dan diisi air tawar sebanyak 35 L dengan padat tebar 15 ekor dalam satu wadah. Pemberian molase kedalam media budidaya ikan patin dilakukan 2 jam setelah pemberian pakan. Metode yang digunakan dalam penelitian ini menggunakan metode rancangan acak lengkap (RAL). Penelitian ini terdiri dari 4 perlakuan dengan 4 ulangan yaitu P1=Kontrol (tanpa penambahan molase), P2= rasio C : N media 15, P3= rasio C : N media 20 dan P4= rasio C : N 25. Hasil penelitian menunjukkan bahwa budidaya ikan patin (P.hypopthalmus) berbasis bioflok dengan penambahan molase ratio C:N berbeda tidak memberikan pengaruh yang berbeda nyata terhadap laju pertumbuhan spesifik, pertumbuhan mutlak dan kelangsungan hidup ikan patin. Namun hasil rata-rata menunjukkan bahwa perlakuan rasio C : N media 20 (P3) memberikan laju pertumbuhan spesifik,pertumbuhan mutlak dan kelangsungan hidup yang tertinggi yaitu berturut-turut 19,6gr, 2,26 gr dan 62,38%.
PENGARUH PEMBERIAN JENIS PUPUK YANG BERBEDA TERHADAP PERTUMBUHAN DAN KELANGSUNGAN HIDUP RUMPUT LAUT KULTUR JARINGAN (Eucheuma cottoni)
Authors: Jaelani Muhamad Mahsun , Marzuki Muhammad , Azhar Fariq
Published: February 2022

Rumput laut merupakan salah satu komoditas perikanan yang potensial untuk dibudidayakan. Salah satu rumput laut yang memiliki nilai ekonomis tinggi adalah Eucheuma cottoniiyang merupakanhasil kultur jaringanspesies alga merah penghasil karagenan dan memiliki banyak peranan penting bagi manusia..Penelitian ini bertujuan untuk mengetahui pengaruh penambahan pupuk Cair, NPK, Urea dan TSP dengan doses 100 gram terhadap laju pertumbuhan rumput lautEucheuma cottonii. Penelitian ini dilaksanakan pada bulan Maret- April 2019 dibalai laut Lombok Sekotong Kabupaten Lombok Barat.Metode yang di gunakan adalah RAL (Rancangan Acak Lengkap) dengan 4 perlakuan dan 3 kali ulangan. Media pemeliharaan menggunakan air laut yang ditambahkan pupuk dengan dosis 100 gram, yaitu : P1 (Pupuk Cair), P2 (Pupuk NPK), P3 (Pupuk Urea) P4 (Pupuk TSP). Data yang diamati berupa Berat mutlak, Panjang mutlak, Pertumbuhan harian, Berat relatif, Panjang relatif  dan kualitas air yang digunakan sebagai media pemeliharaan. Analisis data menggunakan ANOVA.Hasil penelitian menunjukkan bahwa penambahan Pupuk Cair, NPK, Urea dan TSP dengan doses 100 gram  memberikan pengaruh berbeda sangat nyata  terhadap pertumbuhan dan kelangsungan Hidup Rumput laut Eucheuma cottonii. Laju pertumbuhan tertinggi pada Pupuk Urea sedangkan pertumbuhan terendah pada Pupuk TSP.
Growth response of pakcoy (Brassica rapa L.) due to difference dosage and time of giving bokashi
Authors: Merta I Wayan , Raksun Ahmad
Published: February 2022

Pakcoy is one of the commodities favored by the people of Indonesia. The presence of nutrients aroundÃÂ  the plant root system greatly affects the growth of pakcoy. The availability of nutrients can be increased by fertilizing. Fertilization of plants can be done by using bokashi. Study on the growth response of pakcoy due to differences in dosage and time of giving bokashi was conducted to determine: (1) the growth response of pakcoy due to bokashi treatment,ÃÂ  (2) the growth response of pakcoy due to difference in the time of giving bokashi, (3) the growth response of pakcoy due to the interaction between the dose and the time of giving bokashi. Completely randomized design with 3 replications was used in the study. The growth pakcoy parameters were plant height, number of leaves and leaf length. The result showed that: (1) plant height, number of leaves and leaf length had a positive response to bokashi treatment with the best bokashi dose is 15 tons per hectare, (2)ÃÂ  plant height, number of leaves and leaf length of pakcoy responded to the time of giving bokashi, the highest growth parameters were pound in pakcoy given bokashi 30 days before planting. (3) plant height, number of leaves and leaf length were not significantly different due to the interaction between dose and time giving bokashi
Development of interactive multimedia based on blended learning to improve student science literacy during the covid-19 pandemic
Authors: Ihsan Muhammad Shohibul , Jannah Siti Wardatul
Published: February 2022

This study aims at producing interactive multimedia that is valid, practical, and effective to improve students' scientific literacy in Chemistry subjects with the subject matter of oxidation-reduction reactions. This research is included in research and development refers to the ADDIE development model, including the Analysis, Design, Development, Implementation, and Evaluation stages. The interactive multimedia testing in learning and scientific literacy tests were conducted on students of Class X MIA MA Nahdlatul Wathan Suela, NTB. The design of this research trial used One Group Pretest-Posttest Design. The results showed that the average percentage of the interactive multimedia feasibility from three validators was 83.3%, with very feasible criteria. Scientific literacy instruments also got 82.6%, with very feasible criteria. The use of interactive multimedia in the limited trial got an average score of 80.6% from teachers and students with very practical criteria. Interactive multimedia effectively improves students' scientific literacy, marked by the difference in the average score of students' scientific literacy results from 32.05 to 85.41 with very effective criteria. These results show that the developed interactive multimedia has valid, practical, and effective criteria to improve students' scientific literacy during the covid-19 pandemic.
Study of reverse planting techniques on rice as physical science learning materials
Authors: Hestiana Hestiana , Kuswanto Heru , Azalia Aisha , Ramadhanti Desi
Published: February 2022

The spread of COVID-19 makes learning at every level of the education unit conducted from home online or distance learning. However, this is not an easy thing for teachers to do. Teachers are required to innovate in delivering materials so that students can easily understand and learn actively. Indonesia is an agricultural country where most of the population has a livelihood as farmers. As a form of contextual learning and alternative distance learning during the COVID-19 pandemic, teachers can take advantage of rice farming activities in Indonesia, known as rice Tandur (reverse planting), as physical science teaching materials. Therefore, this research aims to explore the concept of physical science contained in rice Tandur activities to be used for physical science learning. This research is descriptive research to describe the idea of physical science in rice planting activities. Data collection was conducted by documentation of rice planting activities as well as literature studies. After the documentation is collected, the analysis uses Kinovea software to find out the center of gravity (COG) and the corners formed by the limbs. Based on the results of analysis and literature studies, the concept of physics was obtained in the form of a third-class lever arm that can be used for science materials in high school classes. In addition, there is a center of gravity and torque concept in the torso's movement, which can be used as a material for learning physics in high school.
Validating metacognitive awareness inventory (MAI) in chemistry learning for senior high school: A rasch model analysis
Authors: Irawan Jono , Hadi Samsul , Zulandri Zulandri , Jamaluddin Jamaluddin , Syukur Abdul , Hadisaputra Saprizal
Published: February 2022

This study aims to validate metacognitive instruments, which include eight indicators of declarative knowledge, procedural knowledge, conditional knowledge, planning, information management, monitoring, debugging, and evaluation. The validation method uses Rasch modeling (Item Response Theory), namely Map analysis Wright (Person-item Map), Measure DIFF, Validity (Fit Statistics for The Draft Questionnaire), Reliability Cronbach Alpha (Summary statistics). Results map analysis wright shows the distribution of items and the power of discrimination are categorized as good with the logit value around 1.0. The curve Measure DIFF and the probability value indicate that the thing does not have an element of distinguishing gender characteristics if the probability value is above 0.05. The assessment instrument's validation showed an infit-outfit of 0.5 MNSQ 1.5, an infit-outfit value of 0.5 ZSTD 1.5, and a value of 0.4 PTMEA 0.85. Furthermore, the reliability of the instrument category is excellent, with a Cronbach alpha of 0.94. In conclusion, the MAI instrument in chemistry learning was feasible to measure the metacognitive abilities of high school students.
E-module innovation as a learning solution for chemistry course during the pandemic based on problem-based learning
Authors: Septiani Devi Ayu , Handayani Anak Agung Ayu Trisna , Hermansyah Hermansyah , Syukur Abdul , Jamaluddin Jamaluddin
Published: February 2022

Chemistry e-modules based on Problem-Based Learning (PBL) are teaching materials based on electronic learning models or e-learning as a solution during the Covid-19 pandemic for students to learn independently. The purpose of this study is to assess PBL-based academic e-modules from the aspect of validity and feasibility in achieving its learning objectives. The approach used is development research according to the Thiagarajan model. The results showed that at the define stage, an analysis was conducted on the Curriculum 13 (K13) module of the Ministry of Education and Culture (Kemendikbud) with the material Ã¢â¬Åchemical bondingÃ¢â¬Â of Grade X at SMAN 3 Lembar.ÃÂ Furthermore, a module designed using an electronic display integrated with the PBL model was done at the design stage. Meanwhile, the expert validation result obtained an average of 0.86, categorized as valid and feasible criteria at the development stage. The result of studentsÃ¢â¬â¢ responses obtained 72.73% (good criteria), and the result of the chemistry teachersÃ¢â¬â¢ responses obtained 88.06% (very good criteria). The PBL-based Chemistry e-module on chemical bonding material is feasible as a Chemistry learning solution for Class X of SMAN 3 Lembar.
The Effect of Young Papaya Seed Extract on The Motility and Abnormality of Male Mice Spermatozoes (Mus musculus)
Authors: Calame Tannya Efritzka Louise , Kusmiyati Kusmiyati , Merta I Wayan
Published: February 2022

Papaya fruit has many benefits, one of which is papaya seed can be used as antifertility drugs, especially young papaya seeds. Young papaya seeds contain secondary metabolites of alkaloid glycosides and proteolytic enzymes such as papain which can interfere with spermatogenesis. The study aims to determine the effect of young papaya seed extract on the sperm motility and abnormality of male mice (Mus musculus). Mice were randomly selected to represent 4 dose groups: control group (P0), extract 30mg/grBW (PI), extract 60mg/grBW (PII) and extract 90mg/grBW (PIII). Each treatment group was carried out with six repetitions. The treatment was given intravenously by injecting it in the tail of the mice for 15 consecutive days. The observed spermatozoa quality variables included a percentage of motile sperm and abnormal sperm. Data analysis using one-way ANOVA test with a significance level of 5% (0,000) and continued with the LSD (Least Significant Difference) with a 95% confidence level. The study on the Quality of spermatozoic showed a significant effect at the doses of 60mg/grBW (PII) and 90mg/grBW (PIII). The higher dose of young papaya seed extract increasingly affects the Quality of sperm. This research concluded that the extract of young papaya seeds has a significant impact on mice spermatozoa (Mus musculus) quality.
Validity of documentary video learning media based on local content traditional musical instruments on sound waves
Authors: Mustofa Hisbulloh Als , Gunawan Gunawan , Kosim Kosim
Published: February 2022

This study aims to determine the validity of the video documentary learning media based on local content of traditional musical instruments on sound wave material. This type of research is research and development. The development model used in this study is a 4D (Define, Design, Develop, and Disseminate) model developed by Thiagarajan. The validity of the product development in this study was tested for validity by 3 physics education expert lecturers and 3 physics teacher practitioners. The results of this study indicate that the documentary video learning media is feasible to proceed to the operational trial phase of learning. Based on the assessment by the validator, it has an average value of 93% with a very decent category, while from the results of student responses to this documentary video learning media through a limited trial, an average value of 89% is obtained with a very decent category.
The validity of project-based learning device on momentum and impulse materials in increasing students creativity
Authors: Junti Farah Hulwani Lala , Gunawan Gunawan , Harjono Ahmad , Busyairi Ahmad , Kosim Kosim
Published: February 2022

This study aims to determine the validity of project-based learning devices to increase students' creativity on momentum and impulse materials. It is a research and development type with a 4D (Define, Design, Develop, and Disseminate) model developed by Thiagarajan. The validity of the product developed in this study was tested by 2 Physics education expert lecturers and 3 Physics teacher practitioners. This study indicates that the learning device is feasible to proceed to the operational trial phase in learning activities. Based on the assessment by the device validator, it obtained an average validity value of 86.72% with a very feasible category. The student responses to the developed device are positive, with an average value of 100%.
The effect of black rice (Oryza sativa L. Indica) extract to increase estrogen hormone on pre-menopause of female white rats (Rattus norvegicus)
Authors: Ardianyah Ardiansyah , Mahrun Mahrun
Published: February 2022

The study aimed to determine the estrogenic activity of extracting ethanol from black rice (Oryza Sativa L. Indica) in pre-menopausal female white rats (Rattus norvegicus). Adaptation was carried out on 20 female rats (Rattus norvegicus) experimental rats for one week with a body weight of about 200-250 g. After one week, the experimental rats were divided into five treatment groups, with each group consisting of 4 rats. The positive control group (P1) was given Ethinyl estradiol orally at a dose of 9Ãâ10-3 mg/ 200g BB in CMC-Na 1% as much as 3 mL. The negative control group (P2) was given orally CMC-Na 1% / 200g BW as 3 mL. Test Group I (P3) were given orally an extract of Black Glutinous Rice mixed with ethanolic basil leaves 96% with a dose equivalent to 1 mL of thick extract in an amount of 0.8g/200g BW in 1% CMC-Na as much as 3 mL. Test Group II (P4) was given an extract of the ethanol substance in Black Rice with a dose equivalent to 2 mL of thick extract in 1.6g/200g BW in 3 mL of 1% CMC-Na orally. Test Group III (P5) was given orally Black Glutinous Rice in a dose equivalent to 4 mL of thick extract in 3.2g/200g BB in CMC-Na 1% as much as 3 mL. The treatments were carried out orally for one estrous cycle begins during the estrus phase. Uniformity during the estrus phase was carried out using the Whitten-Method Effect. It aims to observe changes in the vagina to determine the estrus cycle by placing the male rat cage on top of the female rat cage. Conclusions from the results of this study show that the Black Glutinous Rice (Oryza Sativa L. Indica) extract treatment can increase the estrogenic activity of white rats pre-menopausal females (Rattus norvegicus). A 0.8g/200g BW dose can prolong the estrus cycle and increase vascularity and ovarian weight compared to the negative control (CMC-Na1%). The treatment with the lowest concentration was equivalent to the positive control of Ethinyl estradiol (9x10-3mg/200g BW). This test indicates that giving 96% ethanol extract of Black Glutinous Rice causes an increase in the hormone estrogen in the estrus phase, which tends to prolong the estrus cycle.
Guided inquiry learning-based blended learning on chemical equilibrium material to improve senior high school student learning outcomes
Authors: Ningsih Diyah Ayu , Novita Dian
Published: February 2022

This researchÃÂ aimed to improve student's learning outcomes on chemical equilibrium material through the application of guided inquiry learning usedÃÂ blended learning to determine studentsÃ¢â¬â¢ÃÂ activities and student responses for applied learning. This study uses observation and test methods to collect data and One Group Pretest-Posttest Design to determine an increase in student learning outcomes. The research was conducted at SMA Al-Islam Krian forÃÂ the 2021/2022 academic year. The results showed that implementation of guided inquiry learning based on blended learning was 98.8%, with a very good category. The percentage of student activity is 96%. The learning outcomes obtained by the students showed an increase between the pretest and the posttest, with an average n-gain value of 0.8 in the high category, and from results of paired sample t-test was obtained by the Sig. (2-tailed) 0.000 < 0.005, which means that there is a significant difference. The results of student responses during learning are 96%. This research concludes that guided inquiry learning can improve studentsÃ¢â¬â¢ÃÂ learning outcomes on chemical equilibrium materials.
Application of a guided inquiry learning model assisted by a student worksheet to improve high school students analytical skills
Authors: Nurmawati Lelitya , Novita Dian
Published: February 2022

This study aims to determine the guided inquiry learning model's implementation effect on students' activities, students' analytical skills, and student responses on the reaction rate material. This study used the one-group pretest-posttest design. The subjects in this study were students of the eleventh grade of IPA 1 at SMA Kemala Bhayangkari 1 Surabaya. The instruments used include learning model implementation sheets, student activity sheets, analytical ability test sheets, and student response questionnaires. The results showed that (1) the quality of the guided inquiry learning model application during two meetings from phase one to six are in very good criteria. (2) The activities of students in two meetings have the percentage of activity time related to analyzing at the first and second meetings of 77.2% and 81.99%, respectively. (3) The results of the analysis ability of students with a percentage gain score are 85.81% on the high criteria. (4) The percentage of student responses, 87%, agrees that learning using the guided inquiry learning model can train and improve analytical skills.
PENGEMBANGAN WISATA HIU PAUS BERBASIS IOT (INTERNET OF THINGS) MELALUI SIARAN LANGSUNG JELAJAH VIRTUAL HIU PAUS DI ALAM LIAR DI PANTAI DESA BOTUBARANI, KABILA BONE, BONE BOLANGO, GORONTALO
Authors: Himawan Mahardika Rizqi , Tilahunga Sukirman Dj , Hidayati Eni , Nurliah  , Amar Fahri , Tania Casandra
Published: February 2022

Hiu paus (Rhincodon typus) merupakan spesies ikan terbesar di dunia yang tidak bersifat agresif bagi manusia sehingga menjadi ikon wisata yang diminati. Keberadaan hiu paus menjadi magnet wisata dan mengubah Desa Botubarani dari desa nelayan biasa menjadi desa wisata yang ramai. Namun, Pandemi Covid19 menjadi pukulan yang telak bagi pariwisata hiu paus di pantai Desa Botubarani. Wisatawan yang berkurang sangat drastis tidak hanya menghilangkan pendapatan wisata namun juga aktivitas pemantauan hiu paus turut terhenti. Rintisan Normal Baru pemerintah menjadi harapan kembalinya gairah pariwisata hiu paus di pantai Desa Botubarani. Persiapan dibukanya PPKM (Pemberlakuan Pembatasan Kegiatan Masyarakat) di daerah asal wisatawan dan permudahan perjalan dalam/luar negeri akan disambut dengan penigkatan kualitas dan inovasi wisata hiu paus di Pantai Botubarani. Selain itu, adaptasi wisata di masa pandemi dengan memanfaatkan internet cukup menjanjikan sehingga wisata akan tetap hidup. Desa Inovasi Botubarani mengembangkan siaran langsung jelajah virtual bawah air dengan objek hiu paus secara berkala di alam liar. Pengembangan ini adalah yang pertama di indonesia karena belum pernah dilakukan sebelumnya. Pemanfaatan televisi sirkuit tertutup atau closed circuit television (CCTV) bawah air yang dapat diakses di darat dan terintegrasi dengan internet memungkinkan hiu paus di Pantai Botubarani dapat dinikmati oleh siapapun dan dimanapun. Desa dan masyarakat di Pantai Botubarani dapat menerima masukan dari perkembangan wisata yang berlangsung dari wisatawan yang datang maupun secara virtual. Wisatawan juga mungkin akan tertarik untuk datang setelah melihat siaran langsung hiu paus di pantai Desa Botubarani. Selain itu, perekaman video secara langsung hiu paus juga dapat dimanfaatkan oleh pihak intelektual, pemerintah dan industri sebagai bagian dari kolaborasi triple helix.
PENGOLAHAN LIMBAH UDANG VANNAME DALAM RANGKA PENINGKATAN KETAHANAN PANGAN MASYARAKAT PADA MASA PANDEMI COVID19 DI DESA PEMENANG, LOMBOK UTARA
Authors: Astriana Baiq Hilda , Damayanti Ayu Adhita , Larasati Chandrika Eka , Paryono  , Himawan Mahardika Rizki , Lestari Dewi Putri
Published: February 2022

Manfaat limbah udang berupa cangkang dan kepala udang belum banyak diketahui oleh masyarakat. Padahal menurut penelitian yang pernah dilakukan, hasil analisis tepung dari limbah ini memiliki kandungan protein sebesar 63%. Apabila bahan ini ditambahkan ke makanan sehari-hari maka dapat meningkatkan nilai gizi makanan tersebut. Desa Pamenang, sebagai salah satu Desa di Kabupaten Lombok Utara, dikenal sangat mengandalkan sektor wisata sebagai mata pencaharian masyarakatnya mengingat posisinya yang berhadapan lansung dengan Gili Matra. Dengan adanya bencana alam yaitu gempa di tahun 2018 yang diikuti oleh pandemi COVID19, lumpuhnya sektor wisata menyebabkan menurunnya pendapatan masyarakat di desa tersebut. Masalah lain yang muncul adalah meningkatnya lokus stunting atau gagal tumbuh akibat kekurangan gizi kronis di daerah ini. Oleh karena itu, pemberian pelatihan pengolahan cangkang dan kepala udang menjadi bubuk kaldu udang sebagai zat aditif alami yang memiliki nilai gizi diharapkan dapat mendukung ketahanan pangan masyarakat setempat. Selain itu, diversifikasi pemanfaatan kaldu bubuk udang ini diharapkan dapat meningkatkan added value dari panganan lokal. Metode pendekatan yang diterapkan dalam kegiatan pengabdian ini adalah metode penyelesaian masalah yang meliputi penyuluhan serta pelatihan yang dibarengi dengan inisiasi pembentukan dan pendampingan kelompok masyarakat termasuk pemberian bantuan peralatan. Hasil dari kegiatan pengabdian ini adalah meningkatnya pengetahuan peserta kegiatan mengenai manfaat limbah udang, dan diperolehnya keterampilan mengolah limbah udang menjadi bahan makanan yang memiliki nilai gizi dan ekonomi. Selain itu, sebagai tindak lanjut dari kegiatan ini, sampel kaldu bubuk udang yang dihasilkan dianalisa di laboratorium untuk mengetahui kandungan nutrisi yang dimiliki.
PENYULUHAN BUDIDAYA IKAN MOLLY PADA REMAJA SAAT PANDEMI SEBAGAI ALTERNATIF PENGISI WAKTU YANG PRODUKTIF
Authors: Diniarti Nanda , Junaidi Muhammad , Cokrowati Nunik , Mulyani Laily Fitriani
Published: February 2022

Saat pelaksanaan PPKM level 3 dan 4 membatasi kegiatan di luar rumah. Banyak sektor tutup sementara terutama sektor informal bahkan kegiatan belajar mengajar dilakukan secara daring. Akhirnya banyak remaja berdiam diri di rumah dan memanfaatkan waktu dengan bermain sosial media dan game online.  Akibat terlalu sering bermain social media dan game online banyak dampak negative yang timbul seperti pelecehan, pornografi bahkan kegiatan kriminal. Untuk itu diperlukan kegiatan yang bisa membawa manfaat yang lebih besar contohnya berbudidaya ikan hias. Ikan hias yang sedang banyak peminatnya salah satunya ikan Molly. Tujuan kegiatan ini adalah memberikan pengetahuan dan wawasan tentang budidaya ikan hias molly. Manfaat yang diharapkan agar para remaja dapat mengisi waktu dengan membudidayakan ikan molly Lokasi penyuluhan berada di Desa Gontoran Lombok Barat dengan sasaran remaja masjid. Kegiatan penyuluhan dilakukan dengan cara pendidikan orang dewasa. Hasil dari kegiatan penyuluhan Para remaja antusias untuk membudidayakan ikan molly karena di dukung banyaknya sumber pakan dan air yang melimpah. Bentuk ikan molly yang menarik juga menjadi daya tarik remaja untuk membudidayakan ikan molly. Banyaknya pertanyaan yang diberikan merupakan indikator keingin tahuan para remaja. Kesimpulan dari kegiatan adalah adanya peningkatan pengetahuan para remaja dalam hal budidaya ikan molly.
(In)ADEQUAÇÃO DO CULTURALISMO JURÍDICO PARA ANÁLISE DAS DECISÕES DO STF SOBRE A QUESTÃO INDÍGENA NO BRASIL
Authors: Macêdo Ana Paula Joaquim , Teixeira Vanessa Corsetti Gonçalves , Madeira Filho Wilson
Published: February 2022

Introdução

A presente pesquisa busca averiguar a adequação do culturalismo jurídico como referencial teórico hábil, representado aqui pela teoria de Miguel Reale, para a análise das decisões do Supr
Partial Replacement of Cement by Solid Wastes as New Materials for Green Sustainable Construction Applications
Authors: Saleh Hosam M. , Faheim Abeer A. , Salman Aida A. , El-Sayed Abeer M.
Published: February 2022

The manufacturing of ordinary Portland cement is an energy-intensive process that results in pollution and CO2 emissions, among other issues. There is a need for an environmentally friendly green concrete substitute. Waste products from a variety of sectors can be recycled and used as a green concrete substitute. This decreases the environmental effects of concrete manufacturing as well as energy consumption. The use of solid waste materials for green building is extremely important now and in the future. Green concrete is also in its infancy in terms of manufacturing and application. Academics must intervene by encouraging business implementation. The aim of this review paper is to raise awareness about the importance of repurposing recycled materials and to highlight new technologies for producing green, sustainable concrete.
Effects of the Addition of Sawdust Ash and Iron Ore Tailings on the Characteristics of Clay Soil
Authors: Uchechukwu Elinwa, Augustine , Shehu Mohammed, Abdulrahaman , Bafeto Mohammed, Ahmed
Published: February 2022

An evaluation of the effects of additives and firing temperatures on clay bricks characteristics was studied. The two (2) additives used were sawdust ash (SDA) and iron ore tailing wastes (IOTW), and the five (5) firing temperatures of 400o C to 1200o C at intervals of 200o C were applied. The fired bricks were tested for linear shrinkage, water absorption, density, and compressive strength. The results of the investigations showed that firing temperature improved the clay brick characteristics across all replacement levels. However, the SDA additions increased the linear shrinkage and the water absorption but decreased the density and compressive strength. On the other hand, the addition of IOTW to the clay-SDA mixture, reduced both the linear shrinkage and water absorption of the clay bricks, and increased the density and compressive strength. The statistical values and the regression models derived on the experimental data using Minitab 18 Software were significant.
Physio-Chemical Characteristics and Acid-Sulphate Reactions of Moringa Oleifera Seed Powder Cement Paste and Concrete
Authors: Elinwa Augustine Uchechukwu , Ayuba Isaac Bulus , Danjauro Sagir Samaila
Published: February 2022

The evaluation of the effect of using moringa oleifera seed powder (MOSP) to partially replace cement by wt. % has been carried out. A mix parameter of 1: 1.7: 2.5, with designed strength of 20 kN-m2 , and a cement content of 420 kg-m3 , water-cementitious ratio of 0.5, to produce concrete specimens to which percentages of MOSP by wt. % of cement were added and cured for 90 days. Basic characteristics of the MOSP material were determined (Consistency and Setting times), and the concrete parameters workability, density, water absorption and compressive strength were also determined. The analysis of the experimental data collected on MOSP and MOSP-concrete confirmed that MOSP is substantially silicate (Quartz and Cristobalite). These have greatly to a large extent imparted on the quality of MOSP-concrete produced good quality concrete. The optimum replacement was at 0.2 % wt. % of cement.
Indoor Air Quality (IAQ) Evaluation of Higher Education Learning Environments
Authors: Lama Supreet , Fu Changfeng (Charlie) , Lee Angela
Published: February 2022

Indoor Air Quality (IAQ), particularly in educational facilities, is gainingconsiderable interest and is a synonymous indicator towards evaluatinghuman comfort. Factors such as CO2 concentration, temperature, andhumidity play crucial parts in determining an acceptable level of IAQ.Many studies have also demonstrated that the indoor air quality ofclassrooms affects students’ concentration and performance. Today withthe threat of a global pandemic, the demand of clean & fresh indoor airquality in education buildings is extremely intensive. This study focuseson investigating IAQ situations and changes in different typical functionalspaces of a higher education building in the UK. CO2, temperature, andhumidity data in various learning environment were monitored via dataloggers during the winter. Associated with data monitoring, a set ofquestionnaires surveys were carried out to evaluate the user’s experience.The results of this study show that temperature and CO2 concentrationin the classrooms was constantly higher than the government guidanceon a daily basis. The analysis also shows that temperature and humidityincreased with CO2 levels, but at a much lower rate. This study hasrevealed poor and concerning IAQ in higher education buildings in the UK,particularly in larger rooms with high occupancy. Along with the findings,this paper also identifies possible impact or factors and proposes solutionsto overcome these issues.
Evaluation the Effects of Coarse Aggregates Size on Concrete Properties
Authors: Belay Mamaru Dessalegn
Published: February 2022

Concrete is the most generally used construction material in buildings,pavements, and infrastructures. Concrete is a construction materialcomposed of cement as binder, fine aggregates and coarse aggregatesmixed with water which hardens with time. Concrete is a versatileconstruction material within the housing industry of the planet. Thestandard of the concrete is tormented by various factors and from thosevarious factors which may have an effect on the concrete quality are, thecoarse combination size has its own nice role on the standard of concreteproduction. A laboratorial experiment was conducted to work out the resultscoarse aggregates size on recent and hardened concrete properties. For thisstudy totally different crushed volcanic rock aggregates sizes were collectedfrom almost Jimma city for determination of the results of coarse aggregatesizes in concrete production. Three coarse aggregate nominal sizes of 10mm, 14 mm and 20 mm were used for samples production to envision thescale effects on concrete properties. For this study the procedures that wasfollowed, the types and quantity of materials for concrete creating weresimilar whereas sizes of nominal basaltic coarse aggregate were different.The fresh concrete has a slump value of 67 mm, 72 mm and 83 mm for10mm, 14 mm and 20 mm aggregate sizes respectively. A total of thirty sixconcrete cube samples were ready and tested using compressive strengthtesting machine at totally different ages of the cube 7 days, 14 days, and 28days, to know their strengths. The compressive strength was 23.524 Mpa,22.643 Mpa and 22.41 MPa for aggregate sizes of 10 mm, 14 mm and 20mm respectively. The laboratory results show that 10mm coarse aggregatesize gave the most effective compressive strength and comparativelylowest slump at similar water/cement ratio of 0.6. At 28th day 10mmcoarse aggregate size gave 23.524 Mpa compressive strength which is themaximum compressive strength from the remainder coarse aggregates so,the optimum maximum size of coarse aggregate for this study was 10mm.
Nutrient’s composition of costus lucanusianus stem
Authors: Dikioye Emmanuel Peters  , Iromuanya Chibueze
Published: February 2022

The search for solution to malnutrition problem in it various forms particularly in developing countries necessitated the exploration of indigenous plants and spices that has been widely utilized for diverse purposes. The study was aimed at evaluating the nutrients composition of costus lucanusianus stem which include proximate, minerals, vitamins and amino acids analyses. Proximate composition was assessed by AOAC methods, minerals by (AAS), and vitamins by U.V spectrophotometer and amino acid by Gas chromatography spectrophotometer. Proximate composition revealed moisture content (74.87±0.70mg/100g), carbohydrate (19.44±0.98mg/100g), crude fiber (3.24±1.29mg/100g), crude fat (1.10±0.26mg/100g) and ash (0.89±0.19mg/100g) the least. Caloric value (kcal/100g) was 89.54±6.46. Macro and micro minerals includes calcium (28.14±27.11mg/100g),Phosphorous (20.50±17.17mg/100g) and Potassium (18.34±17.12mg/100g) Iron (35.56±17.12) and Zinc (21.91±0.63). Vitamin present include vitamins B2 (1.85±0.65), B6 (1.75 ± 0.01), B9 (1.75 ± 0.01mg/100g), B1 (1.36 ± 0.10mg/100g), A (1.04±0.00mg/100g), and E (1.20. ±0.07mg/100g). Amino acid present include lysine (20.38 ± 0.15mg/100g), threonine (18.58 ± 0.24mg/100g), methionine (16.21 ±0.57mg/100g) and Phenylalanine (13.47 ±0.41mg/100g). Glutamine (41.41±0.93mg/100g), cystein (37.90 ±0.39mg/100g), asparagine (27.25±0.10mg/100g), alanine (23.33±0.40mg/100g), aspartic acid (21.36±0.41mg/100g) and glutamic acid as the least (0.07±0.02mg/100g). Costus lucanusianus stem, could serve as herbal nutritional supplement considering its rich macro and micro nutrients constituent.
The Effect of procurement process on procurement performance of public tertiary institutions in Ghana
Authors: Gabriel Awuah  , Augustine Anane  , Sethlina Araba Kakra Egyir
Published: February 2022

The purpose of the study was to investigate the effect of procurement process on tertiary institutions in Ghana. The objectives of the study include examining the effect of procurement planning on procurement performance of public tertiary universities, assessing the effect of procurement controlling on procurement performance of public tertiary universities and ascertaining the effect of procurement monitoring on procurement performance of public tertiary universities. A casual research design and cross-sectional data were collected from employees of various tertiary institutions in Ghana to answer the questions the study wanted to address. The data was collected from the respondents was entered into SPSS. The SPSS output was then used to run the regression output as well as the descriptive statistics for data analysis. The results were then presented using tables. The study finds that procurement planning, procurement control and procurement monitoring has a positive and significant effect on the procurement performance of the tertiary institutions used for the study. The study recommends that steps are taken to train the members of staff of all public institutions on the relevance of the procurement process to the success of these institutions. It is further recommended that auditors in public tertiary institutions take steps to uncover any procurement breaches that occur in these institutions so that action is taken to correct such procurement breaches.
Changes in the frequency of eating out, consuming ready-to-eat meals, and eating at home before and after the spread of COVID-19 among students
Authors: Tatsuya Koyama  , Shin Yamaoka
Published: February 2022

This study aimed to examine changes in the frequency of eating out before and after the coronavirus disease (COVID-19) pandemic. In January 2021, a self-administered questionnaire survey was conducted among 21 third-year students in Aomori City, Japan. Participants completed the survey containing questions on their characteristics, monthly food expenses, changes in meals between January 2020 and January 2021, frequency of eating out in January 2020, frequency of purchases of ready-to-eat products in January 2020, current reasons for eating out, current reasons for refraining from eating out, and situations where they would not refrain from eating out in the future. In 2020, nine people (43%) answered “once a week” as the frequency of eating out. The change in the frequency of eating out and the change in the frequency of ready-to-eat meal showed a positive correlation (r=0.796), while the frequency of eating out and the frequency of consuming home meals showed a negative correlation (r=-0.661). It was suggested that the frequency of eating out may be negatively associated with the frequency of consuming home-cooked meals among students.