bluuebunny/crossref_metadata_2025 huggingface dataset:
MENINGKATKAN HASIL BELAJAR DRIBBLE FUTSAL MELALUI MODEL PROBLEM BASED LEARNING
Authors: Chaitami Abdul Haris , Triansyah Andika , Hidasari Fitriana Puspa
Published: February 2022

AbstractThe problem discussed in this study is whether there is an effect of the application of the problem based learning model on the learning outcomes of futsal dribble on students at SMA Negeri 5 Pontianak. The research was conducted using descriptive qualitative method involving two variables, namely the independent variable of the problem based learning model and the dependent variable. Subjects in this study were students of 30 students class X MIA 1 SMA Negeri 5 Pontianak. Technique uses tests and measurements, namely a test with a grid of measuring instruments. Data analysis using percentages. where the completeness of the pre-cycle futsal dribble learning outcomes 20% was then given learning through a problem based learning model in learning futsal dribble in the first cycle the completeness of the futsal dribble learning outcomes became 33.33%, then given learning through problem based learning learning models in the results learning dribble futsal in the second cycle, the completeness of learning outcomes of learning dribbling futsal becomes 96.67%. The conclusion in this study is that there is an increase in futsal dribble learning outcomes through the application of a problem based learning model in class X MIA V SMA Negeri 5 Pontianak.Keywords: problem based learning model, Futsal dribbling learning outcomes
PERAN MATA PELAJARAN PENJASORKES DALAM MEMBANGUN KEMANDIRIAN PESERTA DIDIK DI SMA MUHAMMADIYAH 1 PONTIANAK
Authors: Rudianto Rudianto , Wati Isti Dwi Puspita , Yanti Novi
Published: February 2022

AbstrackThe problem in this study is that the researcher formulates how big the "role of physical education subjects is in building the independence of students in high school". The purpose of this research is to find out how big the role of physical education subjects in building the independence of students in high school. The research method used is a quantitative descriptive method in the form of a survey in the form of a questionnaire or a questionnaire with a quantitative research form. The sample used in this study is a saturated sample of KBM (teaching and learning activities) for the even semester of the 2019/2020 academic year. Then an instrument trial is carried out to measure validation using the product moment correlation technique which is processed with the help of Microsoft Excel. The data analysis technique in this study used quantitative descriptive statistical calculations with percentages. So the results of this study get the results of the percentage of the role of physical education subjects in the independence of students. After doing research by giving questionnaires to respondents, the results showed that respondents showed a positive attitude towards the questions they had filled in with the results of 78.57% or 1,155 respondents stating that physical education subjects answered independently and 21.43% or 315 respondents stated that physical education subjects answered not independently.Keywords : Students, Independent, Physical Education
Cooperative C–H Bond Activation by a Low-Spin d6 Iron–Aluminium Complex
Authors: Gorgas Nikolaus , White Andrew , Crimmmin Mark
Published: February 2022

The reactions of transition metal complexes underpin numerous synthetic processes and catalytic transformations. Typically, this reactivity involves the participation of empty and filled molecular orbitals centred on the transition metal. Kinetically stabilised species, such as octahedral low-spin d6 transition metal complexes, are not expected to participate directly in these reactions. However, novel approaches that exploit metal ligand-cooperativity offer an opportunity to challenge these preconceptions. Here we show that inclusion of an aluminium-based ligand into the coordination sphere of neutral low-spin d6 iron complex leads to unexpected reactivity. Complexes featuring an unsupported Fe–Al bond are capable of the intermolecular C–H bond activation of pyridines. Mechanistic analysis suggests that C–H activation proceeds through a reductive deprotonation in which the two metal centres (Fe and Al) act like a frustrated Lewis-pair. Key to this behaviour is a ground state destabilisation of the d6 iron complex, brought about by the inclusion of the electropositive aluminium-based ligand. These findings have immediate implications for the design of reagents and catalysts based on 1st row transition metals.
Cathodoluminescence of zinc oxide crystals grown from melt under high pressure in the presence of ytterbium oxide
Authors: Baranov Andrei N. , Shestakov Mikhail V. , Chukichev Mikhail V. , Tafeenko Victor A. , Mukhanov Vladimir A. , Solozhenko Vladimir L.
Published: February 2022

A mixture of poly- and single crystals of zinc and ytterbium (2 at.%) oxides have been grown from the melt at high temperature (1430°C) and high pressure (3.8 GPa). The crystals were transparent under examination with naked eye. The diameter of crystals was in the range from 0.005 to 2 mm. X-ray diffraction confirmed presence of individual zinc and ytterbium oxides in the recovered samples. No change of zinc oxide lattice parameters was observed compared to pristine zinc oxide. Cathodoluminescence spectra of the mixture were recorded at 77 and 293 K. The collected spectra exhibit UV, green and near-infrared bands due to exciton recombination, presence of oxygen vacancies and ytterbium ions in ZnO crystals, respectively.
Property-driven development of privileged macrocyclic scaffolds using heterocycles
Authors: Saunders George , Yudin Andrei
Published: February 2022

Passive membrane permeability is a fundamental challenge in the development of bioactive macrocycles. To achieve this objective, chemists have resorted to various strategies, the most common of which is deployment of N-methylated amino acids and/or D-amino acids. Here we investigate the effect of heterocyclic grafts on the passive membrane permeability of macrocycles and report the structural consequences of iterative amino acid replacement by azole rings. Through stepwise sub-stitution of amino acid residues for heterocycles, we show that lipophilicity and PAMPA permeability of a macrocycle can be vastly improved. Overall, changes in permeability do not scale linearly as more heterocycles are incorporated, underscor-ing the subtleties of conformation-property relationships in this class of molecule. NMR analysis and molecular dynamics simulations provide insights into the structural consequences of the added heterocycles and foreshadow the emergence of privileged macrocyclic scaffolds for drug discovery.
Fundamental Reaction Limitations for Formic Acid Oxidation
Authors: Bagger Alexander , D. Jensen Kim , Rashedi Maryam , Luo Rui , Du Jia , Zhang Damin , J. Pereira Inês , Escudero-Escribano María , Arenz Matthias , Rossmeisl Jan
Published: February 2022

Electrocatalytic conversion of formic acid oxidation to CO2 and the related CO2 reduction to formic acid represent a potential closed carbon-loop based on renewable energy. However, formic acid fuel cells are inhibited by the formation of poisoning species during the reaction. Recent studies have elucidated how the binding of carbon and hydrogen on catalyst surfaces promote CO2 reduction towards CO and formic acid. This has also given fundamental insights to the reverse reaction, i.e. the oxidation of formic acid. In this work, simulations on multiple materials have been combined with formic acid oxidation experiments on electrocatalysts to shed light on the reaction and the accompanying catalytic limitations. We found that: (i) The desired principal reaction for efficient formic acid oxidation should progress through adsorbed carboxyl, *COOH, which should then be oxidized to CO2. (ii) *H adsorbed on the surface results in *CO formation and poisoning through a chemical disproportionation step. (iii) Catalysts are poisoned by formate and/or hydroxyl. Using these results, a framework for the reaction has been developed explaining the fundamental limitations and progressing our understanding.
Sleep disorders in children with rheumatic diseases
Authors: Kelmanson Igor A.
Published: February 2022

Rheumatic diseases (RD) are often diagnosed in childhood. Sleep disorders are commonly associated with RD in children. It is stressed that sleep disorders found in this type of clinical pathology cannot be exceptionally considered as an epiphenomenon typical to any form of chronic disease; rather, sleep disorders should be regarded as a part of the clinical manifestations of RD. An important role in the origins of this association is played by specific inflammatory mediators involved in the pathogenesis of various RD, which simultaneously affect the structure of sleep and contribute to sleep disorders. There are both nonspecific and characteristic variants of sleep disorders detected in some leading clinical forms of RD in children, in particular in juvenile rheumatoid (idiopathic) arthritis, systemic lupus erythematosus, systemic scleroderma, seronegative spondyloarthropathies, fibromyalgia. There is a relationship between the severity of sleep disorders, the activity of RD, the degree of emotional disorders and pain symptoms in children. Approaches to the correction of sleep disorders in children in the context of the treatment of RD are substantiated.
Foucault dan Teologi
Authors: Kebung Konrad
Published: February 2022

This article presents the relation between Michel Foucault’s philosophical thoughts and theology. So far one might hardly hear about the discussion of the impact of Foucault’s thought on theology and all disciplines related to it, such as religion, exegesis, spirituality, and the like. Recently many poststructuralists and postmodern thinkers have been interested in this issue. In fact, Foucault’s thoughts and analyses are considered very useful for the development of theology and the concepts of religious experience. Through his analyses of history and culture, Foucault prepares raw materials useful for theological reflections which are basically grounded on reality and the concrete life of humankind. Thus Foucault can help theology more rooted within reality, and therefore theology is not merely associated with the ecclesiological and dogmatic teachings of the Church, but can help them to be more easily digested and practised by the living community of the believers.
Chronicles - December, 2020
Authors: Tedjoworo Hadrianus
Published: February 2022

'Chronicles' is a journal column of "MELINTAS" which contains information about the various events, congresses, conferences, symposia, necrologies, publications, and periodicals in the fields of philosophy and theology.
Pengembangan Model Pengolahan air Baku dengan Metoda Elektrokoagulasi
Authors: Febrianto Adi Nugroho
Published: February 2022

Besi (Fe) dan mangan (Mn) merupakan komponen yang umum terdapat dalam air kulit bumi, dan sangat mudah terlarut dalam air tanah (ground water). Secara alamiah bentuk yang sangat umum ditemukan dalam air tanah adalah senyawa besi dan mangan bikarbonat. Air yang mengandung besi dan mangan bikarbonat bila berkontak dengan udara akan membentuk presipitat (endapan) dan berada dalam bentuk dispersi koloid, yang menyebabkan warna dan kekeruhan dalam air. Penelitian ini bertujuan untuk membuat model perangkat pengolah air tanah sehingga memenuhi baku mutu air bersih. Tujuan khusus penelitian ini adalah untuk mengetahui efisiensi proses elektrokoagulasi untuk menurunkan penurunan kekeruhan, Fe dan Mn dalam air tanah. Penelitian dilakukan terhadap sampel yang berasal dari sumber air disekitar Cibeber kota Cimahi. Hasil penelitian menunjukkan terjadi peningkatan penurunan konsentrasi Fe dan Mn akibat variasi waktu tinggal dan jumlah plat elektroda. Penurunan konsentrasi Fe dan Mn terbaik dari sumber air I diperoleh pada waktu tinggal 11,266menit, menggunakan 6 plat elektroda dan rapat arus 0,000996 A/cm2 dengan penurunan konsentrasi Fe sebesar 78,92% dan konsentrasi Mn 80,41%, sedangkan untuk sumber air II hasil terbaik diperoleh pada waktu tinggal 13,289 menit, menggunakan 6 plat elektroda dan rapat arus 0,000712 A/cm2 dengan penurunan konsentrasi Fe sebesar 86,85% dan konsentrasi Mn 87,00%.
В. Соловьев о Ф. Ницше: проблема «смерти Бога»
Authors: Одиноченко Виктор
Published: February 2022

В статье представлен анализ восприятия В. Соловьевым философских и религиозных взглядов Ф. Ницше, осмысления идеи смерти Бога в аксиологическом и онтологическом аспектах, с учетом эволюции мышления противоречивой и неординарной личности немецкого философа.
Shorter serial intervals in SARS-CoV-2 cases with Omicron BA.1 variant compared with Delta variant, the Netherlands, 13 to 26 December 2021
Authors: Backer Jantien A , Eggink Dirk , Andeweg Stijn P , Veldhuijzen Irene K , van Maarseveen Noortje , Vermaas Klaas , Vlaemynck Boris , Schepers Raf , van den Hof Susan , Reusken Chantal BEM , Wallinga Jacco
Published: February 2022

The SARS-CoV-2 Omicron variant has a growth advantage over the Delta variant because of higher transmissibility, immune evasion or shorter serial interval. Using S gene target failure (SGTF) as indication for Omicron BA.1, we identified 908 SGTF and 1,621 non-SGTF serial intervals in the same period. Within households, the mean serial interval for SGTF cases was 0.2–0.6 days shorter than for non-SGTF cases. This suggests that the growth advantage of Omicron is partly due to a shorter serial interval.
EFFECT OF GERIATRIC COMMUNITY PROGRAM ON ACHIEVING SUSTAINABLE DEVELOPMENT GOALS AND UNIVERSAL HEALTH COVERAGE AMONG OLDER PERSONS IN AFRICA; A NIGERIA PROJECT PLAN
Authors:   Amara Frances Chizoba. MPH, PhD, Chinedu Asiegbu. MD, Chukwuemeka Ugwu. MBBS,MPH
Published: February 2022

Population of older person are growing globally, in Africa and Nigeria. The WHO stated that this demographic change has implications on health care systems and on achieving sustainable development goals (SDGs) and universal health coverage (UHC). However, programs to adjust to population aging is still lacking in countries like Nigeria. This project proposal aims to implement and evaluate, with goal of scaling up, community geriatric program on achieving SDGs and UHC among older persons in Nigeria. Intervention approach will include home based management of older persons through seven geriatric case management processes, service provisions by trained case managers across four intervention domains, instituting and supporting health geriatric clinics and drug banks, enrollment of beneficiaries into national health insurance program and supporting system strengthening (on geriatric care) for service providers and hospitals. Data collection and entry will be done using expert data capturing tools and geriatric data management information system (GDMIS), while data analysis will be done through comparison of pre and post intervention indices. Review of literatures and anecdotal data show paucity of geriatric projects for care of older persons whose population is exponentially increasing in Africa. This project proposal that aims to implement and evaluate effect of a novel and innovative community health programs on achieving SDGs and UHC goals among older persons in Nigeria will share its result, conclusion, and recommendations, which will be disseminated for adaption and adoption for geriatric programing in the African context.
La biofortificación foliar con hierro mejora la calidad nutracéutica y la capacidad antioxidante en lechuga
Authors: Preciado-Rangel Pablo , Valenzuela-García Ana Alejandra , Pérez-García Laura Andrea , González-Salas Uriel , Ortiz-Díaz Sergio Arturo , Buendía-García Alain , Rueda-Puente Edgar Omar
Published: February 2022

El hierro (Fe), es un oligoelemento indispensable para la salud humana y su deficiencia afecta a mil doscientos millones de personas en el mundo. La biofortificacion agronómica puede mitigar esta deficiencia ya que su aplicación en los cultivos mejora la biosíntesis de compuestos bioactivos y propicia su bioacumulación. El presente trabajo tiene como objetivo evaluar el efecto de la aplicación foliar de Fe (FeSO4) sobre el rendimiento, biosíntesis de compuestos bioactivos y acumulación en lechuga. Para ello cinco tratamientos fueron aplicados vía foliar: 0, 10, 20, 30 y 35 µM L-1. En la cosecha, se cuantificó la calidad nutracéutica y la acumulación de Fe en hojas, así como la productividad de la planta de lechuga.  La biofortificación con Fe modificó positivamente la biosíntesis de compuestos fitoquímicos y su concentración en hojas de lechuga, sin afectar el rendimiento. La aspersión foliar de Fe es una alternativa para incrementar la biosíntesis de compuestos fitoquímicos e incrementar la concentración de este elemento en lechuga con la posibilidad de mejorar la salud pública con su consumo.
Tedarik Zinciri Risk Yönetiminde Bulanık Çok Kriterli Karar Verme Yöntemleri ile Süreç Bazlı Hata Türleri Analizi
Authors: Poyraz Pelin , Şimşir Fuat
Published: February 2022

Günümüzde; doğal afetlerin artması, teknolojinin hızla gelişmesi, ürün ömrünün kısalması, maliyetlerin artması, politik sebepler, arz ve talepteki belirsizlikler sonucu giderek artan tedarik zinciri riskleri ile karşılaşılmaktadır. İşletmeler rekabet avantajı sağlayabilmek, müşteri beklentilerini karşılayabilmek, sektörde pazar paylarını artırabilmek ve sürdürülebilirliklerini koruyabilmek için tedarik zinciri risklerini sistemli bir şekilde yönetmek durumundadırlar. Çalışmada, iklimlendirme ve ısıtma sektöründeki bir firmanın talep planlama sürecinde oluşan hatalar analiz edilmiştir. Bu çalışmada amaçlanan; Süreç HTEA (Hata Türü ve Etkileri Analizi) yönteminin zayıf yönleri sebebiyle, risk analizine Bulanık SWARA-Bulanık COPRAS tabanlı süreç aşamalı yeni bir yaklaşım getirmektir. Süreç HTEA yönteminin, alanında uzman karar vericilerin bilgi ve tecrübelerini değerlendirmelerde göz önüne alamaması şeklindeki zayıflıklarını iyileştirmek hedeflenmiştir. Bu amaçla, risk analizi için Bulanık SWARA-COPRAS tabanlı süreç aşamalı ÇKKV (Çok Kriterli Karar Verme) modeli önerilmiştir. Kriterlerin önem ağırlıklarını belirleyebilmek için Bulanık SWARA yöntemi, hataları sıralayabilmek için Bulanık COPRAS yöntemi kullanılmıştır. Bu yönteme göre, en önemli hataların; “HT-1: Talep rakamlarının eksik veya yanlış olması sonucu eksik üretimin S&OP (Satış ve Operasyon Planlama) toplantısında farkedilmesi” ve “HT5:Talep rakamları belirlenirken master datanın eksik tanımlanması sonucu eksik üretimin S&OP toplantısında fark edilmesi” olduğu tespit edilmiştir. İlerleyen çalışmalarda, risk analizlerinin etkinlikleri benzer yaklaşımlarla değerlendirilebileceği ve karar destek sistemlerine entegre edilerek mevcut veya gelecek senaryoların analizinde kullanılabileceği öngörülmektedir.
Türetim ile Z_(2^s )+uZ_(2^s ) Halkası Üzerinde Aykırı Devirli Kodlar
Authors: Çalışkan Basri
Published: February 2022

Kodlama teorisinde, lineer kodların özel bir sınıfı olan devirli kodlar ile ilgili araştırmalar büyük ilgi görmektedir. Bu ilginin en önemli nedenlerinden bazıları devirli kodların zengin cebirsel özelliklere sahip olmaları, birçok uygulama alanlarının bulunması, kodlama ve kod çözmede kolaylık sağlamaları olarak sayılabilir. Devirli kodların sabit-devirli, parçalı devirli ve yarı burmalı devirli kodlargibi genellemeleri bulunmaktadır. Bu genellemelerin çoğunda değişmeli yapılar üzerinde çalışılmıştır. Son zamanlarda devirli kodların değişmeli olmayan halkalardaki üreteç polinomları kullanılarak bir başka genellemesi (aykırı devirli kodlar) tanımlanmıştır. Aykırı polinom halkalarının cebirsel özellikleri nedeniyle aykırı devirli kodlar optimal kod bulma açısından devirli kodlara göre daha avantajlıdır. Bu çalışmada u2=1 olmak üzere ℤ4+uℤ4 halkası üzerinde tanımlı aykırı devirli kodlar için elde edilmiş bazı sonuçların s≥2 için S=ℤ2s+uℤ2s halkası için genellemesi yapılmıştır. θ, S üzerinde bir otomorfizm ve δθ, S üzerinde bir türetim olmak üzere S[x,θ,δθ ] aykırı polinom halkaları kullanılarak, δθ-devirli kodlar tanımlanmıştır. S[x,θ,δθ ] daki herhangi bir elemanın merkez eleman olabilmesi için gerek ve yeter koşul verilmiştir. δθ dönüşümü ile S halkasının tüm elemanlarının görüntüleri elde edilmiş ve tanımlanan Gray dönüşümü ile S halkasının elemanları için Gray ağırlığı ile S nin θ tarafından sabit bırakılan alt halkası Sθ tanımlanmıştır. Ayrıca bu kodların üreteç ve kontrol matrislerinin formu belirlenmiş ve özellikle s=4 için bazı örnekler verilmiştir.
Impact of Village Funds on the Gap the Human Development Index in Rural-City Areas in Indonesia
Authors: Artha Graciela Pandiangan  , Dominicus Savio Priyarsono  , Mutiara Probokawuryan
Published: February 2022

The development gap is still an important issue. This can be seen in one of the goals in the framework of reference for the development of countries in the world which is formulated in the Sustainable Development Goals (SDGs). One form of inequality that often occurs in the region is the human development gap. The gap in human development in rural and urban areas causes a welfare gap. The gap in human development can be approached from the indicators of the human development index. The Village Fund distribution program is one of the efforts made by the government to reduce the number of development gaps in each region. This study aims to analyze the effect of village funds on the urban-rural human development gap in Indonesia for the 2015-2019 period. The analytical method used is descriptive analysis and panel data analysis. The results showed that the village fund program had a negative effect on the gap in Indonesia's human development, which was represented by life expectancy, the gap in average length of schooling, and the gap per capita in rural and urban areas in Indonesia.
Density of The Crested Black Macaque (Macaca nigra) and Habitat Quality in Tangkoko, Bitung, North Sulawesi
Authors: Maneasa Edyson , Simandjuntak Suddin , Mokosuli Yermia Semuel
Published: February 2022

The Crested black macaque (Macaca nigra) is an endemic species to the Sulawesi Island, limited distribution, and Critically Endangered on the IUCN red list. The population density in the Tangkoko Conservation Forest Management Unit (CFMU) has decreased significantly due to habitat destruction and hunting. Existing data are based on the study in the northern part of Tangkoko. Currently, data from the southern is urgently needed so that population data covers the entire area, including to identify the habitat quality. The aims of this study was to (1) analyze the population density level of Crested black macaque at the Tangkoko CFMU, (2) identify the habitat characterize of Crested black macaque at the Tangkoko CFMU, (3) analyze the correlation between Crested black macaque density and habitat quality at the Tangkoko CFMU. The study was conducted from January to March 2020 in the sothern of Tangkoko CFMU, North Sulawesi. The data collection on the density of Crested black macaque is done by animals directly inventorying through surveys in the field. Observations are carried out by walking at speeds of 1 - 1.5 km / h on each track and stopping at every 100 m to observe the surroundings. Data recorded is the number of individuals found using the line transect method. Vegetation data collection method used is habitat quality data collection carried out by making sample plots measuring 25 m x 25 m for tree level observations in lines with each distance between plots is 250 m. Data recorded for dominance of vegetation are species names, number of individuals, and diameter at breast height of trees. The results showed that (1) the population density level of Crested black macaque was 15 individuals/km2. The highest amount of density is found on the D4 was 72 individu/km2, the lowest on D1, D5, D6, and D7 with no macaques; (2) vegetation analyzed at 45 plots were important value index with the highest value of 86,95 is Ficus variegata on line D7 for tree level, and Theobroma cacao for pole level with highest value of 120,80 on line D4; (3) the correlation between density of Crested black macaque and habitat quality that shows a positive value based on the Pearson correlation test. Further research is needed to determine the relationship between population density, habitat disturbance, and hunting pressure.
Draft Genome of Lysinibacillus sphaericus Isolate 229C Pathogenic to Vector Mosquitoes
Authors: Viersanova Afiannisa , Purwanto Hari
Published: February 2022

Lysinibacillus sphaericus is widely known as a bioinsecticide agent because it shows entomopathogenic activity against vector mosquitoes, especially of Culex and Anopheles spp. This bacterium known to have variations in toxicity. Its binary toxins, which is known to have a high toxicity, has a very low genetic variation, so that resistance problems has been reported. Therefore, exploration continues to be carried out to find a new effective and potential toxin to deal with the resistance problems. This study aims to analyze the genome of isolate 229C L. sphaericus, to identify the species of isolate 229C based on the 16S rRNA gene, and to identify toxin characteristics of the 229C isolate based on the results of genome sequence analysis. The 229C isolate was previously obtained from soil sample in Indonesia and showed a high pathogenicity against C. quenquefasciatus. Molecular identification was carried out with the 16S rRNA gene analysis. While draft genome and toxin analysis performed by conducting whole genome sequencing using Illumina Hiseq 2000, 250 bp pair-end protocol. The sequenced data then analized using freely available bioinformatics tools.The results of the molecular identification showed that the closest related species of isolate 229C was L. sphaericus. The isolate 229C has a genome size of 4.65 Mbp and G+C content of 36.83%. Toxin analysis showed that this isolate did not contain Mosquitocidal toxin (Etx/Mtx), binary toxin (Bin protein), crystal toxin (Cry48/Cry49 protein), nor Sphaericolysin genes. However, there are s-layer protein and hemolysin genes that also known to be associated with the toxicity of L. sphaericus to mosquitoes and possibly, are the answer to the problem of resistance to binary toxins. This result opens the opportunity for an analysis of the effectiveness of S-layer protein and Hemolysin against resistance population mosquitoes.
Habitat Characteristic of The Long-Tail Monkeys (Macaca fascicularis) at Natural Tourism Park (NTP) Pengsong Mount, West Lombok
Authors: Indriani Ratu Mas Tara , Yamin M. , Artayasa I Putu
Published: February 2022

Pengsong Mount Natural Tourism Park (NTP) is a habitat for long-tailed monkeys (Macaca fascicularis) in West Lombok. This study aims to determine the habitat characteristics of Macaca fascicularis in Pengsong Mount Natural Tourism Park (NTP), West Lombok. The object of this research is the long-tailed monkey (Macaca fascicularis) and all vegetation observed in the habitat of this species. Habitat characteristic data was collected using the plot method placed on an observation transect. Vegetation data taken includes vegetation at the level of seedlings, saplings, poles, and trees. Data on the physical conditions of the habitats collected included air temperature, air humidity, soil moisture, and soil pH. The data on the activity of the long-tailed monkeys studied were the daily activities of the monkeys in their habitat. The results showed that the habitat characteristics of long-tailed monkeys in Pengsong Mount Natural Tourism Park (NTP) is overgrown by 25 types of plants belonging to 15 families, has an average air temperature of 27.670C, an average air humidity of 650C, an average soil moisture of 55.67%, and the average pH of 5.2. The value of plant diversity in the Pengsong Mount Natural Tourism Park (NTP) area is 2.623 so that the value of plant diversity is classified as moderate. The value of plant evenness in the Pengsong Mount Natural Tourism Park (NTP) area is 0.815 so that the value of plant evenness is high.
Conservation Status of Bird Species on Promasan Hiking Trail, Mount Ungaran, Central Java
Authors: Purnamaningrum Arifah , Bihi Moh Kafa , Harits Anif Risqianti
Published: February 2022

Mount Ungaran is one of the dormant volcanoes in Central Java. The condition of the unspoiled forest in the Mount Ungaran area is a good habitat for fauna, including birds. There are several hiking trails traversed by mountain climbers, one of them is the Promasan hiking trail. This study aims to determine the diversity of bird species and identify their conservation status on the Promasan hiking trail. Data were colected by Indices Ponctuels d'Abondance (IPA), Line Transect, and Point Count methods. Bird species diversity was determined by the Shanon index. Determination of bird conservation status based on the IUCN Red List, CITES Appendix, Government Regulation (PP No. 7 of 1999) and Ministry of Environment and Forestry Regulation (PERMENLHK RI No. 106, 2018). The results showed that there were 24 bird species belonging to 19 families. The diversity of bird species was classified as moderate (Shanon index = 2.59). There were two species including CITES Appendix II. Based on the IUCN Red List, there was one species in the Endangered (EN) category, 23 species in the Least Concern (LC) category. There was one species that is protected according to Government Regulation (PP No. 7 of 1999). The 3 species include as protected under the Ministry of Environment and Forestry Regulation (PERMENLHK RI No. P.106, 2018). Monitoring the presence of birds in this area must be carried out regularly.
Histochemical Test of root, petiole and leaf of Kelembak (Rheum officinale Baill.)
Authors: Nurhasanah Nurhasanah , Iriani Dyah
Published: February 2022

Kelembak (Rheum officinale Baill.) is perennial shrub with pharmacological activities, and well-known as one of traditional herbal medicine used widely in the world. The phytochemical study, as well as histochemical test, is pivotal to determine the potency of herbs used for disease treatment. Based on its secondary metabolite content.ÃÂ  Histochemical test of R.officinale vegetative organs had not been reported. This study aims to determine the content of compounds in the vegetative organs of kelembak and provide information on the anatomical position of each compound in root, petiole and leaf. The preparation of histochemical test used freehand section method. Each sample was made in three replications for this test. A total of four secondary metabolites were examined in this study, i.e. alkaloid, tannin, lipid and flavonoid. The positive content of each compound was indicated by the coloration change. The specimens were then observed and photographed using light microscope.ÃÂ  The results showed that the root, petiole and leaf showed positive content of alkaloids, tannins, lipids and flavonoids. However, the anatomical position of each secondary metabolites are different among root, petiole and leaf. The results of this study provide the first information of histochemistry vegetative organs of Rheum officinale.
Andaliman (Zanthoxylum Acanthopodium DC.), a Rare Endemic Plant from North Sumatra that Rich in Essential Oils and Potentially as Antioxidant and Antibacterial
Authors: Ompusunggu Nommensen Pangihutan , Irawati Wahyu
Published: February 2022

Andaliman (Zanthoxylum acanthopodium DC.) is one of the endemic plants originating from North Sumatra. This plant is known for its benefits as a special seasoning spice in Batak tribe community. Humans as the image of God are given the ability to conduct an investigation and development of what God has created so that science begins to develop to investigate the potential of andaliman plants in the field of health. This writing aims to determine: 1) morphological and physiological characteristics of andaliman, 2) habitat of andaliman, and 3) utilization of andaliman as antioxidant and antibacterial agent. The method of writing used in the preparation of this article is the study of literature. The results of the literature study show that the andaliman plant has a tap root, woody stems, green, odd-numbered and jagged-edged compound leaves, pale yellow flowers, pepper-shaped fruits, and shiny black or wrinkled black seeds with thick and hard seed shells. Andaliman habitat is a place with an altitude of 1200-1500 masl with an average temperature of 15-18 ÃÅ  C and rainfall of 800-1000 mm/year and soil pH 5.5-7.6. Andaliman fruit contains 29 components of essential oils such as geranyl, cytronella, ÃÂ²-cytronelol, and nerol which have antioxidant activity. Andaliman fruit extract also has antibacterial activity, which inhibits the growth of microbes such as Escherichia coli, Salmonella typhimurium, Bacillus cereus, Pseudomonas fluorescens, Aspergillus flavus, Propionibacterium acnes and Staphylococcus aureus.
Analysis of sea cucumber food habits (Holothuroidea) in Tanjung Gosale village Guraping subdistrict North Oba city Tidore Islands
Authors: Abubakar Yuyun , Salim Fajria Dewi
Published: February 2022

This study aims to find out the composition of sea cucumber types in Tanjung Gosale Guraping Village, find out the composition of sea cucumber food types in Tanjung Gosale Guraping Village and determine the food habits of sea cucumber types (main food, supplements, and incidental foods) contained in the stomach contents of sea cucumbers. The research procedure is carried out measurements of the length and weight of sea cucumbers using a measuring bar and analytical scales. Then the sea cucumber is dissected to be taken by the stomach, then analyzed the food contained in the stomach. Before the stomach is dissected first done weighing the weight of the stomach using analytical scales and measurements of the length of the stomach using the bar. The stomach of sea cucumbers that have been surgically then carried out observations of the contents of the stomach per individual in a microscope to find out the types of food organisms contained in the stomach of the sea cucumber. The results showed that the composite.
Fauna Biodiversity as Indicator of Mangrove Forest Health on Moti Island, Moti District, Ternate City
Authors: Abubakar Salim , Masykhur Abdul Kadir Masykhur Abdul Kadir , Pertiwi Reni Tyas Asrining , Rina Rina , Subur Riyadi , Sunarti Sunarti , Abubakar Yuyun , Susanto Adi Noman , Fadel Ariyati H.
Published: February 2022

The health condition of mangrove forests can be determined by assessing forest health indicators. One of the indicators used in determining the health of mangrove forests is faunal biodiversity. Measurement of forest health is a step that can be taken to ensure forest functions and benefits. The study's objectives were to determine the composition of mangrove species and mangrove forest fauna (birds and epifauna), to determine the structure of the fauna community which includes species diversity and species dominance and to determine the health condition of mangrove forests on Moti Island, Ternate Island District. This research was conducted on Moti Island, Moti District, Ternate City, North Maluku Province for six months, April - September 2021. A Sampling of mangroves was carried out using the "spot check" method. Meanwhile, the method used to assess mangroves' health condition refers to the FHM (Forest Health Monitoring) method. There are nine species of mangrove, namely Rhizophora apiculata, Rhizophora stylosa, Rhizophora mucronata, Bruguiera gymnorrhiza, Sonneratia alba, Xylocarpus granatum, Avicennia offincinalis, A. marina and Nypa fruticans. While the composition of fauna species is as many as 18 species consisting of Epifauna (Gastropoda = 12 species, Bivalve = 2 species) and birds as many as four species. The diversity of mangrove forest fauna species in all research locations is moderate and no species dominate. The health status of mangrove forests, both Tafaga and Figur villages, has 60% good condition, 20% moderate and poor conditions.
Production Performance of Peking Ducks with Feeding of Fermented Yeast Culture Pineapple Peel (Saccharomyces cereviceae)
Authors: Bulkaini Bulkaini , Kisworo Djoko , Indarsih Budi , Sumadi I K
Published: February 2022

Poultry production performance is reflected by body weight gain, ration conversion and carcass percentage. This study was conducted with the aim of knowing the optimum level of use of fermented pineapple peel in the ration on production performance and carcass percentage of male Peking ducks. The research material was male Peking duck aged 3 weeks with initial body weight of 343.90 ÃÂ± 0.90 g. 240 male Peking ducks were placed randomly in battery cages based on a Completely Randomized Design with 6 treatments and 5 replications, namely P0=ration without fermented pineapple peel (FPP); P1=the ration contains 5% FPP; P2=ration contains 10% FPP; P3=the ration contains 15% FPP; P4= ration contains 20% FPP and P5=the ration contains 25% FPP.ÃÂ  Based on One way ANOVA analysis and Duncan's test, it was found that the use of fermented pineapple peel 10% significantly (P<0.05) increased the final body weight (1.693g/head), body weight gain (1.350 g/head), and carcass percentage (55.25%). From the results of the study, it can be concluded that the optimum level of use of fermented pineapple peel with yeast culture on body weight gain, slaughter weight, carcass weight and carcass percentage, respectively: 8.80%; 8.40%; 7.25% and 9.50%.
Potency of Kaliasem Bark (Syzygium polychephalum) Extract as Antibacterial Agent for Staphylococcus aureus
Authors: Agustini Ni Luh Putu , Risky Vidika Apriyanthi Desak Putu , Saka Laksmita Ayu
Published: February 2022

Nosocomial infectious diseases are caused by Staphylococcus aureus bacteria. Treatment of infection can use drugs in the form of substances produced by a microorganism in the form of antibiotics. However, the problem that often arises with antibiotics is the occurrence of resistance. Alternatives that are able to overcome the problem of antibiotic resistance against bacteria are plants that have antibacterial activity, one of which is kaliasem (Syzygium polychephalum). This study aims to determine the compounds contained in the ethanol extract of the bark of kaliasem (Syzygium polychephalum) and to determine the potential of its activitiy on the growth of Staphylococcus aureus in vitro. The bark extract of kaliasem (Syzygium polychephalum) had been carried out by using maceration method. Determination of antibacterial activity was carried out by the disc diffusion method. The ethanolic extract of the bark of kaliasem (Syzygium polychephalum) contains antibacterial compounds such as tannins, phenolics, terpenoids, alkaloids and flavonoids and the ethanolic extract of the bark of kaliasem (Syzygium polychephalum) at concentrations of 25%, 50%, 75% and 100% can inhibit growth of Staphylococcus aureus bacteria with an average inhibition zone of 15.85 mm, 18.36 mm, 23.64 mm, 28.58 mm, respectively. Therefore, it can be concluded that the ethanolic extract of the bark of kaliasem (Syzygium polychephalum) contains antibacterial compounds and has the potential to inhibit the growth of Staphylococcus aureus bacteria.
Analysis of Cyanide (CN) in Seagrass as a Bioindicator in Sekotong West Lombok
Authors: Alwani Alwani , Al Idrus Agil , Yamin M.
Published: February 2022

Seagrass is one of the aquatic plants that can be used as a bioindicator in the waters. This research aims to determine the morphological structure of seagrass as bioindicators and the amount of cyanide content in seagrass plants in the waters of Sekotong, West Lombok. This research was conducted in July - August 2021 at Pewaringan Beach, Sekotong, West Lombok. Determination of the sample point is done by purposive sampling. Data were collected using line transect method simple random sampling ÃÂ at three points. Data analysis was carried out on seagrass plants with complete roots, stems, and leaves using a spectrophotometer at BLKPK NTB Province. The results showed that the characteristics of seagrass in the three research locations had a slightly muddy sandy substrate and slightly sandy muddy, an average leaf ÃÂ length of 21.5 cm, an average leaf ÃÂ width of 1.10 cm, an average stem length of 9.4 cm, diameter the average stem is 0.74 cm, the average root length is 7.29 and the average root diameter is 0.25 cm. The ANOVA test showed that the significant value was <0.05, so there was a significant difference in the morphology of the seagrass. The cyanide content in the waters of Pewaringan Beach was found to be on average 12,341 mg/kg or 0.495 mg/L. According to the Ministry of Health of the Republic of Indonesia No. 57 of 2016 the standard cyanide content in waters is 0.5 mg/L. So that the cyanide content in the waters of Pewaringan Beach is still within safe limits.
Difference Long Irradiation on The Growth Rate of Kappaphycus Alvarezii
Authors: Lutfiati Lulu , Cokrowati Nunik , Azhar Fariq
Published: February 2022

The study aimed to find out the long-standing difference in irradiation to the growth rate of Kappaphycus alvarezii in controlled containers. The method used is experimental. This study used a Complete Randomized Design (RAL) using four (4) treatments with 3 repeats, namely the treatment of P1 control (without irradiation), P2 (8 hours of irradiation), P3 (10-hour irradiation), P4 (12-hour irradiation). The data were analyzed using analysis of variance (ANOVA) at a rate of 5% with a confidence interval of 95% and continued with the Duncan test. In this study, the average results of absolute weight and the highest specific daily growth rate at P4 treatment of 25.67ÃÂ±1.53 gr, 3.30ÃÂ±0.06%, followed by P3 treatment 21ÃÂ±2 gr, 3.11ÃÂ±0.09%, P2 treatment 16ÃÂ±1 gr, 2.87ÃÂ±0.06%, and lowest P1 treatment 12.33ÃÂ±2.08 gr, 2.63ÃÂ±0.15%. The average value of light intensity in each treatment is P1 1053ÃÂ±41.00 lux, P2 1256ÃÂ±27.71 lux, P3 1479ÃÂ±0.58 lux, and P4 1668ÃÂ±34.64 lux. Water quality parameters during maintenance are in the normal limit range for seaweed maintenance. D treatment produces the highest growth value this is because the light is an energy source in the process of photosynthesis, in chlorophyll plants, photosynthesis is the main process determining the rate of growth. The quality and amount of light that enters affects the growth of seaweed. This research concluded that the maintenance of Kappaphycus alvarezii in controlled containers with different irradiation had a significant effect on growth. 12 hours irradiation (P4) gave the best growth with an absolute weight of 16.00 g, and a specific growth rate of 4.06% per day and gave the highest chlorophyll-a value of 2.72 mg/l. Meanwhile, the highest phycoerythrin value was found in (P1) without irradiation, which was 4.58 mg/l.
Utilization of Bioflok on Vaname Shrimp (litopenaeus vannamei) Cultivation
Authors: Malan Sudirto , Fabanjo M. Abjan
Published: February 2022

Vaname shrimp (Litopenaeus vannamei) cultivation is a promising business. Biofloc technology is an alternative to solve the problem of intensive aquaculture waste. Biofloc technology is able to provide additional protein feed for cultivated animals so that it can increase growth, besides that this technology is also effective in reducing inorganic nitrogen waste from leftover feed and manure. The purpose of this study was to determine the effect of different doses of biofloc on the growth rate of Vannamei Shrimp (Litopenaeus vannamei) and the effect of different doses of biofloc on the survival of Vannamei shrimp (Litopenaeus vannamei). The method used is the experimental method. Experiments carried out in this study were to determine the effect of biofloc with different doses on the growth rate of white shrimp. The study design was a completely randomized design with four treatments and three replications, treatment A (commercial feeding without the addition of biofloc), treatment B (giving commercial feed with the addition of 15 mL of biofloc) C (feeding commercially with the addition of 20 mL of biofloc). ) and D (addition of 20 mL of biofloc without commercial feeding). Vaname shrimp seed stocking density for each treatment amounted to 15 fish/container. The application of biofloc had a significant effect on the growth rate of daily specific average weight and the increase in length of Vaname shrimp seeds (p<0.05). The highest growth rates in weight and length were obtained in treatment B (commercial feeding with the addition of 10 mL of biofloc) of 0.55ÃÂ±0.02%/day and 3.7ÃÂ±0.01 cm, respectively. The addition of biofloc did not show any significant effect on the survival rate of Vaname shrimp fry (p>0.05).
The Effect of Chitosan Extracted from Green Mussel Shells Perna viridis on Sonneratia caseolaris Mangrove Syrup Preservation
Authors: Al Ayyubi Muhammad Sholahuddin , Farikhah Farikhah , Safitri Nur Maulida
Published: February 2022

Green mussels (Perna viridis) are one of the prospective aquatic resources that can be developed into a high-value commodity. Their shells, on the other hand, are rarely used and discarded; despite the fact that the shells are contain chitosan, which can be used as a food preservative.The purpose of this study is to examine the effect of chitosan administration from green mussel shells on Sonneratia caseolaris mangrove syrup at various concentrations. The experimental design used Completely Randomized Design (CRD) with 7 treatments within 3 replications. The study lasted 30 days in order tho find the best concentration of chitosan as a preservative. The McFarland method was used to evaluate the total dissolved density (Brix), the acidity (pH), the organoleptic study (aroma and color), and the bacterial density. The following treatments were used in this study: P1 to P5 (the addition of 0.1-0.5 ml of green mussel sheel chitosan solution); P6 (the negative control or without the addition of green mussel shell chitosan solution); and P7 (the positive control with the addition of 0.1 ml sodium benzoate (C7H5NaO2) as commercial preservative). The results showed that the average value of total dissolved density P1-P7 varied between 22-22.46 (Brix); acidity (pH) of P1-P7 ranged between 2-3,1; and the organoleptic test obtained points 5 (neutral) on the aroma and color test. As a conclusion, chitosan derived from green mussel shellsP. viridis is promising agent to be utilized as a preservative in S. caseolaris mangrove syrup.
PERFORMA REPRODUKSI IKAN BETOK (Anabas testudineus) BETINA DENGAN PEMBERIAN PAKAN BUATAN BERBAHAN BAKU TEPUNG KEONG MAS (Pomacea canaliculata)
Authors: Ma'ruf Muhammad masrur , Syarif Ahmad Fahrul , Bidayani Endang
Published: February 2022

Ikan betok merupakan salah satu spesies ikan lokal yang potensial untukdibudidayakan. Tujuan penelitian ini untuk mengkaji dan mengevaluasi pengaruh pemberianpakan berbahan baku keong mas (Pomacea canaliculata) terhadap tingkat kematangan gonad.Penelitian dilakukan pada bulan Juli – Agustus 2018. Ikan betok (A. testudineus) berasal daritangkapan alam di perairan persawahan desa Rias Kecamatan Toboali Kabupaten BangkaSelatan. Ikan betok yang digunakan sebanyak 150 ekor dengan bobot 2 ± 10 gram. Perlakuanyang diberikan pakan buatan yang berbahan baku keong mas (P. canaliculata) dengankandungan protein pada pakan 32%, 34%, 36%, 38% dan kontrol menggunakan pakankomersil dengan kandungan protein 31 – 33%. Hasil penelitian menunjukkan nilai IndeksKematangan Gonad (IKG) dengan bobot gonad pada awal penelitian sebesar 0,5 gram.Setelah dilakukan perlakuan dengan pemberian pakan buatan berbahan baku tepung keongmas (P. canaliculata), hasil uji statistik menunjukkan bawa kontrol berbeda nyata denganperlakuan pada pengamatan GSI dengan kisaran nilai 16% ± 0.02 pada perlakuan P.38%, HSIdengan kisaran nilai 8% ± 0.01 pada perlakuan P.38%. Fekunditas ikan betok (A. testudineus)yang didapatkan pada hasil penelitian dengan kisaran 509 - 4.686 butir. Perkembangan tingkatkematangan gonad (TKG) awal penelitian (TKG II) setelah diberi pakan buatan berbahanbaku keong mas (P. canaliculata) meningkat dengan tingkat kematangan gonad mencapaitahap IV.