bluuebunny/crossref_metadata_2025 huggingface dataset:
KAPABILITAS ORGANISASI DINAS PERTANIAN TANAMAN PANGAN BAGI PENINGKATAN PRODUKSI KOMODITAS PADI DI KABUPATEN SUBANG TAHUN 2016-2018
Authors: Suherlan Suherlan , Sumaryana Asep , Myrna Rita , Adiwisastra Josy
Published: December 2019

The organizational capability of the Local Office of Agriculture and Food Plantation for improving the rice commodity production in Subang Regency year 2016-2018 had not been suitable yet with the plan of the Local Government of Subang Regency as regulated in the Local Regulation No. 14/2014 concerning the Local Middle Term Development Plan of Subang Regency Year 2014-2018 in order to increase the rice commodity production from 1.1 million ton to 1.6 million ton. The aim of this research is to describe the organizational capability of the Local Office of Agriculture and Food Plantation for improving the rice commodity production. The method of this research is descriptive. This research uses the primary and secondary data. The data of this research is qualitatively analyzed. The results of this research indicate that the organizational capability for improving the rice commodity production could not develop the new irrigation and optimize the rice field land yet. Moreover, the rice plantation time planned three times a year was not achieved because of the lack of water supply. Consequently, the achievement of rice commodity production in last 2018 was only 1.3 million ton. The knowledge and skills of the civil servants at field could not be practiced yet. The organizational capability had not been suitable yet with the program of irrigation reconstruction and the supporting infrastructures. Therefore, the Local Office of Agriculture and Food Plantation and other local organizations related to the agricultural sector had not optimally co-operated yet.Keywords: Organizational Capability, Rice Commodity, Agriculture and Food Plantation.
Implementation E-Learning Based Moodle on Physics Learning in Senior High School
Authors: Fayanto Suritno - , Kawuri Maria Yosephien Retna Tinon , Jufriansyah Adi , Setiamukti Danur Dara , Sulisworo Dwi
Published: December 2019

The problems faced today by Indonesian teachers are the difficulty of implementing e-learning in the learning process, especially physics learning. During this time the teacher considers using e-learning in the classroom will not be effective. This study aims to explain how the implementation of physics learning by using Moodle-based e-learning in the learning process. In this study, it divided into two aspecs, namely learning outcomes and interest in learning with physics learning material in rectilinear motion. This study uses an experimental class design with a sample size  X class of 10 students of Public High School 1 Piyungan group chosen randomly. This study used the design of one group pretest and posttest using the T-Test while the significance value using N-gain analysis scores and learning interests obtained from the questionnaire. The results of the analysis show an increase in learning outcomes with very high N-gain significance values. Then the percentage of student learning interest reaches 66% which is in the excellent category. So it can be concluded that the application of moodle-based learning can increase learning interest and learning outcomes and 73% of students agree if knowledge based on Moodle applied in the learning process.

 

Keywords: e-learning, Moodle, learning management system, learning outcomes, interest in learning
Role of Technology in Enhancing Teaching and Learning in Cambodian Higher Institutions: Implication for Stakeholders
Authors: Antepli Nelli , Suleiman Yusuf , Bolaji Hameed Olalekan , Makinde Semiu Olawale
Published: December 2019

This paper examined the role of technology in enhancing teaching and learning in Cambodian higher institutions and its implication for stakeholders. Evaluation of ICT models, emerging technologies and the learning theories related to technology were systematically reviewed. An overview of teaching and learning before the digital age with a particular reference to history of education and technology in Cambodia was examined while historical theories of educational technology such as constructivism, complexity theory, the pedagogy of nearness, heutagogy, and connectivism were highlighted. Furthermore, emerging technology integration models such as SAMR, TPACK, UDL models were examined including the multiple roles of the learner, educator and the audience in a connected age.Several strategies in which technological tools that can be used to enhance students’ learning were provided. Part of the Implication of the study includes adequate provision of power supply, computer laboratories and internet connectivity in Cambodian higher institutions should be paramount to government, private firms, philanthropists and NGOs so that students can appreciate technology and learn fast. Aside that, adequate fund should be given to the institutions to procure other necessary technology gadgets that can be used to promote learning.

 
Keywords: ICT Models, Teaching and Learning, Higher Institutions, Stakeholders, Cambodia
A Comparative Analysis of English Learning Motivation between the Rural and Urban Students
Authors: Rahmat Agus , Akbar Muhammad
Published: December 2019

The objectives of this research are to find out (1) the motivation of the rural and urban students (2) the types of motivation influence the rural and urban students (3) the factors influence the motivation of the rural and urban students (4) the effective ways to foster the motivation of the rural and urban students. This research employed descriptive qualitative research design. The subject of this research is the ninth grade students of MTs Muhammadiyah Lempangang as urban students and the ninth grade students of MTs N 4 Bulukumba as rural students. The number of participants is 20 students. The result of research showed that (1) all of the informants of MTs N 4 Bulukumba as a rural area are motivated in Learning EFL. It is similar with the informants of MTs Muhammadiyah Lempangang as an urban area. They are also motivated. Both of areas are different in the level of motivation(2)the types of motivation dominantly influence in the rural students are both of integrative and instrumental motivation whereas in the urban students are instrumental motivation(3)the similarity between both of students area either internal or external factors are the expectancy, the teachers and the activities and materials whereas the difference from both of them are the relevance, the goal setting and the school environment(4)the effective ways to foster the motivation of the rural students in learning EFL is the teacher always trains the pronunciation of the vocabulary whereas the urban students is the teacher should have more practice activity in learning and teaching process.
Memrise: Promoting Students’ Autonomous Learning Skill through Language Learning Application
Authors: Aminatun Dyah , Oktaviani Lulud
Published: December 2019

To master English language, students cannot only learn English from what is learned in the classroom given by the teacher. They need to explore many things to support their understanding about language. Therefore, independent learning skill is crucially needed. The students are the one who knows what they need to study according to their priority. However, sometimes, it is hard for students to build their independent learning skill since there is no encouragement from the teacher to promote it, and also students’ lack of awareness related to what they are learning. The role of technology like online learning application nowadays really helps teachers and students overcome this problem. This study is aimed to explore the use of language learning application named Memrise to enhance students’ autonomous learning skill outside the class, especially in studying English. A descriptive study was conducted to eighteen Management students taking English for Business II subject. The data gained from questioner and interview showed that Memrise helps students learn English and especially improve their vocabulary. Moreover, because it can be accessed anywhere and anytime, students can always learn English whenever they want to. Thus, it really supports students’ independent learning skill and boosts their English skills.
Memory and the river
Authors: Basualdo Ana
Published: December 2019

This article takes the reader on a journey through Remembrance Park (the commemorative area in the city of Buenos Aires, which looks onto Río de laPlata, where so many corpses ended up submerged) which intertwines the time of horror with a time that wonders which monuments, which representationscan, must, should (?) be erected, practiced, to give substance, body, to what has been taken away. Questions that require us to initiate a dialogue with thefictional works of H.I.J.O.S. (Spanish acronym for Sons and Daughters for Identity and Justice Against Forgetting and Silence, which coincidentally also reads as“children” in Spanish) of the desaparecidos (“missing people”) that started to produce their own stories over the last 20 years.
Analysis of Prosthetic Running Blade of Limb Using Different Composite Materials
Authors: Abood Saleel Hussein , Faidh-Allah Majid Habeeb
Published: December 2019

Prostheses are used as an alternative to organs lost from the body. Flex-Foot Cheetah is considered one of the lower limb prostheses used in high-intensity activities such as running. This research focused on testing two samples of Flex-Foot Cheetah manufactured of two various materials (carbon, glass) with polyester and compare between them to find the foot with the best performance in running on the level of professional athlete. In the numerical analysis, the maximum principal stress, maximum principal elastic strain, strain energy; finally, the blade total deformation were calculated for both feet. In experimental work, the load-deflection test was done for foot to calculate the bending the results were very close to the numerical results and the curve of the carbon foot sample was lower than that for the glass foot sample that indicates the strength of carbon fiber.
Pink Purchasing: Interrogating the Soft Power of Japan's Kawaii Consumption
Authors: Lieber Milo Shiri
Published: December 2019

The cross-sectional study results reveal the importance of kawaii among Japanese women and positive aspects in consuming cute items; for working women, it was found, kawaii products help in dealing with stress and serve as a momentary gateway from the harsh world of everyday life to a romanticized world of one’s childhood and for younger women serve as a fashion statement.
Perception and misperception of bodily symptoms from an Active Inference perspective: Modelling the case of panic disorder.
Authors: Maisto Domenico , Barca Laura , Van den Bergh Omer , Pezzulo Giovanni
Published: December 2019

We advance a novel computational model that characterizes formally the ways we perceive or misperceive bodily symptoms, in the context of panic attacks. The computational model is grounded within the formal framework of Active Inference, which considers top-down prediction and attention dynamics as key to perceptual inference and action selection. In a series of simulations, we use the computational model to reproduce key facets of adaptive and maladaptive symptom perception: the ways we infer our bodily state by integrating prior information and somatic afferents; the ways we decide whether or not to attend to somatic channels; the ways we use the symptom inference to make decisions about taking or not taking a medicine; and the ways all the above processes can go awry, determining symptoms misperception and ensuing maladaptive behaviors, such as hypervigilance or excessive medicine use. While recent existing theoretical treatments of psychopathological conditions focus on prediction-based perception (predictive coding), our computational model goes beyond them, in at least two ways. First, it includes action and attention selection dynamics that are disregarded in previous conceptualizations but are crucial to fully understand the phenomenology of bodily symptoms perception and misperception. Second, it is a fully implemented model that generates specific (and personalized) quantitative predictions, thus going beyond previous qualitative frameworks.
Operator of Sign of Energy : Toward a Consequence
Authors: Rakotonirina Christian
Published: December 2019

In this paper we have defined what we call Operator of Sign of Energy in the Dirac theory. We have shown the analogy between this operator with the Helicity Operator, in introducing what we call Energy Vector. That has lead us to a "‘Time Vector"’. For interpreting the components of this time vector we have refered to tunneling time.
Accessibility in STEM: Barriers facing disabled individuals in research funding processes
Authors: TigerinSTEMM
Published: December 2019

In this report, we present a range of institutional and structural barriers and biases that prevent disabled researchers within STEMM community from applying and obtaining research funding. We identify direct barriers for each stage of the research funding process and indirect barriers due to existing structures within institutions, research councils and unconscious bias. Finally, we present suggested actions that could be taken to ensure accessibility in STEM research funding.
Proposal Penelitian Biografi Edot Arisna
Authors: Setiawan Adib Rifqi
Published: December 2019

Proposal Penelitian Biografi Edot Arisna
PAPER FILSAFAT SEORANG AYAH DIBUNUH DI DEPAN ANAKNYA YANG MASIH SD
Authors: oktavia Isrul
Published: December 2019

Manusia adalah makhluk ciptaan Tuhan yang sempurna. Manusia bisa membedakan mana perbuatan yang salah dan yang benar dengan menggunakan akal budinya. Moral yang baik menunjukkan orang yang baik juga. Sejak dini anak-anak pasti sudah di didik untuk bertingkah laku baik. Oleh karena itu, semakin dewasa manusia perlu terus mengasah akal budinya dengan mengubah perilakunya agar menjadi lebih baik. Selain akal budi, hati nurani juga menentukan bagaimana sikap seseorang. Manusia telah diberikan akal budi dan hati nurani yang akan membimbing setiap langkah manusia, tinggal bagaimana manusia itu mengolahnya, apakah akan digunakan dengan baik untuk menjadi manusia yang lebih baik atau sebaliknya?
Monopolistic competition (kopi luwak)
Authors: sugiarto Shiefanny delicia
Published: December 2019

Nowadays a coffee lover add "kopi luwak" as their list also because of the uniqueness of its taste and also its main ingredients. Its ingredient was really unbelievable, but in fact it can produce a nice taste. the demand for this product make many companies compete to win the consumer as much as they can. this situation finally caused the monopolistic competition
PAPER FILSAFAT MANUSIA KASUS WANITA DITEMUKAN TEWAS TANPA BUSANA DI APARTEMEN DI TANGERANG DITINJAU DARI TEORI TINDAKAN MANUSIA, TATANAN MORAL, DAN NILAI MORAL
Authors: Dewi Fransiska Oktavia
Published: December 2019

Kasus tewas akibat pembunuhan seorang wanita bernama Sulastri di Apartemen di Tangerang dilakukan oleh seorang pria bernama Agus yang diduga pelaku adalah teman kencan korban. Pembunuhan ini di latar belakangi oleh adanya keinginan untuk menguasai harta benda milik korban. Berdasarkan teori filsafat moral, kasus pembunuhan ini merupakan perbuatan bebas yang dilakukan secara tahu dan mau serta dapat dipertanggung jawabkan. Akibat mengikuti keinginannya, pelaku terjerumus dalam hati nuraninya yang sesat. Sehingga pelaku melakukan pembunuhan dan harus mempertanggung jawabkan perbuatannya. Dari kasus ini, pelaku harus menerapkan prinsip epikeia dalam hidupnya agar mampu berpikir dan bertindak sesuai hati nurani yang baik dan benar.
Penuntasan Pelanggaran HAM Yang Terhambat Oleh UU Pengadilan HAM Yang Perlu Direvisi
Authors: Widiadsih Kezia Rahmameilani
Published: December 2019

Hak asasi manusia merupakan hak dasar yang melekat di diri manusia, bersifat tetap. Hak asasi manusia harus dilindungi, dihormati, dipertahankan, dan tidak boleh diabaikan, dikurangi, atau dirampas oleh siapapun, sehingga tidak terjadi pelanggaran HAM, Untuk melindungi, memberi perasaan aman, keadilan, kepastian terhadap hak asasi manusia, maka dibuat Undang-Undang Pengadilan HAM. Komnas HAM mengkritik pernyataan Jaksa Agung ST Burhanudin yang menjelaskan hambatan penyelesaian beberapa kasus pelanggaran HAM masa lalu. Menurut Komisioner Komnas HAM Chairul Anam, Burhanudin menunjukkan ketidakpahamannya terhadap proses hukum, kenapa bisa ?. Undang-Undang pengadilan HAM perlu direvisi, sebagai salah satu contoh diambil dari Undang-Undang pengadilan HAM yaitu Undang-Undang Nomor 26 tahun 2000 tentang pengadilan HAM perlu dilengkapi untuk menjamin kepastian hukum bagi pihak korban. Pihak korban kasus pelanggaran HAM perlu kepastian hukum.
Pengaruh Kepemimpinan Transformasional dan Motivasi Kerja Terhadap Kinerja Pegawai
Authors: Nur Ipda Gusmartia , Sjahruddin Herman
Published: December 2019

This study to be explore Transformational Leadership and Work Motivation effect on the Employees Performance of STPP Gowa. Data collection using primary data with Questionnaire Technique whose population was obtained from all STPP Gowa employees by using the Slovin formula, amounting to 81 employees. The results of the study indicate that the first hypothesis is accepted because it shows the results of the hypothesis test that there is a significant positive effect. Means Transformational Leadership contributes significantly to employee performance. The second hypothesis is accepted because it shows a significant positive hypothesis test result. Means Motivation contributes significantly to employee performance. The third hypothesis is accepted because Transformational Leadership is the dominant variable. Means Transformational Leadership has greater contribution than work motivation on employee performance
Hard to Monopolize Kopi Luwak
Authors: Adrian Benedict
Published: December 2019

Kopi Luwak is the rare coffee from Indonesia and has a distinctive taste, a bit of earthiness and chocolate flavor and also tastes less bitter than the other coffee beans around the world The problem is the Kopi Luwak only produces by small firms this make a completion with other just like the Turkish electricity competition.
HAK ASASI MANUSIA
Authors: Nasution Leoly Ahadiathul Akhiriah , Harahap Fatrah Yunus
Published: December 2019

Manusia adalah makhluk ciptaan Tuhan yang diistimewakan dengan diberikan HAM semenjak manusia lahir. HAM itu yang harus dijaga dan dilindungi dan diusahakan untuk tidak digunakan sewenang-wenang sehingga menyebabkan kerusakan terhadap HAM manusia lainnya pada saat kita menjalani kehidupan.
DITINDIH SAAT TIDUR SENDIRIAN, TANTE DIPAKSA LAYANI PONAKAN DI ATAS KASUR
Authors: Kusuma Dimas Harya
Published: December 2019

Pemerkosaan adalah suatu tindakan kriminal berwatak seksual yang terjadi ketika seorang manusia (atau lebih) memaksa manusia lain untuk melakukan hubungan seksual dalam bentuk penetrasi vagina atau anus dengan penis, anggota tubuh lainnya seperti tangan, atau dengan benda-benda tertentu secara paksa baik dengan kekerasan atau ancaman kekerasan. Dalam kasus ini seorang pemuda berinisial NRS alias Nong ditangka polisi karena kelakuan bejatnya yang meniduri tantenya sendiri. Aksi pemerkosaan itu terjadi ketika Nong berhasil menyelinap masuk ke rumah korban yang sedang tidur sendirian pada. Dari hasil penyidikan, Nong nekat meniduri tantenya lantaran diduga pengaruhi minuman keras.
SEPASANG KEKASIH DI MAGETAN BUNUH BAYINYA KARENA TAKUT TETANGGA KOS DAN ORANG TUA DITINJAU DARI TEORI ACTUS HUMANUS, HATI NURANI (SESAT) DAN MORALITAS EKSTRINSIK DAN INTRINSIK
Authors: Khotimah Nurul Khusnul
Published: December 2019

Kasus sepasang kekasih yang membunuh bayinya lantaran takut diketahui oleh tetangga kos dan orang tuanya. Menurut teori actus humanus termasuk kedalam tindakan bebas karena pelaku sebagai subjek dari perbuatanya tersebut. Dan pelaku harus bertanggung jawab sesuai dengan hokum yang berlaku. Tindakan ini tidak boleh dikategorikan ke dalam teori directly voluntary (tindakan yang langsung dikehendaki). Tetapi kasus ini dikategorikan kedalam indirectly voluntary karena si pelaku takut dengan orang tua dan tetangga kosnya maka mereka mengambil tindakan membuang bayinya. Dalam hal ini pelaku termasuk kedalam hari nurani yang sesat karena tindakannya tidak sesuai dengan moral manusia sebagai makhluk yang memiliki akal budi
People's Republic of China Legal Update - The Notice on the Prevention of Online Gaming Addiction in Juveniles
Authors: Xiao Leon Y.
Published: December 2019

Final publication is available from Mary Ann Liebert, Inc., publishers http://dx.doi.org/10.1089/glr2.2019.0002The General Administration of Press and Publication of the People’s Republic of China published the Notice on the Prevention of Online Gaming Addiction in Juveniles (the ‘Notice’) on 25 October 2019. The Notice imposes new legal obligations on online gaming service providers in order to ensure the protection of juveniles from online gaming addiction. ‘Juveniles’ are defined by Section 7 of the Notice as citizens of the People’s Republic of China under the age of 18. The Notice has been effective since 1 November 2019.The legal burdens imposed can be summarised as follows: (i), an obligation to verify the identity of all users using their unique national identity number (only this obligation is uniquely imposed also in relation to adult users, as the verification process is necessary to determine whether the user is an adult or a juvenile for the purposes of the other obligations imposed); (ii), a shutdown law imposed as an obligation to stop providing online gaming services to juveniles between 22:00 and 8:00 the next morning; (iii), maximum gameplay time limits imposed as an obligation to stop providing online gaming services to juveniles after 3 hours on public holidays (including weekends) and 1.5 on other days; (iv), maximum in-game spending limits imposed as an obligation not to provide paid services beyond a certain monetary limit (or not at all) depending on the age range of the juvenile user in question.
Effects of low-level visual information and perceptual load on P1 and N170 responses to emotional faces
Authors: Schindler Sebastian , Bruchmann Maximilian , Gathmann Bettina , robert.moeck  , straube thomas
Published: December 2019

Emotional facial expressions lead to modulations of early event-related potentials (ERPs). However, it has so far remained unclear in how far these modulations represent face-specific effects rather than differences in low-level visual features, and to which extent they depend on available processing resources. To examine these questions, we conducted two preregistered independent experiments (N = 40 in each experiment) using different variants of a novel task which manipulates peripheral perceptual load across levels but keeps overall visual stimulation constant. Centrally, task-irrelevant angry, neutral and happy faces and their Fourier phase-scrambled versions, which preserved low-level visual features, were presented. The results of both studies showed load-independent P1 and N170 emotion effects. Importantly, we could confirm by using Bayesian analyses that these emotion effects were face-independent for the P1 but not for the N170 component. We conclude that firstly, ERP modulations during the P1 interval strongly depend on low-level visual information, while the emotional N170 modulation requires the processing of figural facial features. Secondly, both P1 and N170 modulations appear to be immune to a large range of variations in perceptual load.
Micro Propagation of Several Potted Anthurium Accessions Using Spathe Explants
Authors: Budiarto Kurniawan
Published: December 2019

The introduction of new varieties and production system of anthuriums has faced some problems due to the lowmultiplication rates in conventional vegetative and genotypic alteration problem in reproductive propagation. Sincethen, in vitro propagation technique became important to be investigated. The research was carried out fromSeptember 2006 to August 2007 at the Indonesian Ornamental Crops Research Institute. A complete factorialexperiment was designed to accomplish two chronological in vitro activities. The first step dealt with differentincubation sites, i.e. dark and light conditions for callus induction of three potted anthurium accessions, namelyclone no. SM. 001, cv. Alphine and cv. Bonito. The best callus obtained from the incubation treatment were then,transferred into defined media with different formulations to get free-callus plantlets in the second steps. Theresults showed that more progressive callus development from spathe explant was detected on the media ofmodified Nitsch and Nitsch + 1 mg/l 2,D + 1 mg/l Kin + 1 mg/l BA stored at dark after 60 days incubation. After 45days transferring the callus in the same media on light conditions, torpedo-shaped callus was detected. Completeplanlets were obtained after 75 days reculturing the buds in Nitsch and Nitsch medium containing 2,4 D withvarious BA concentrations. Clone SM. 001 and cv. Bonito showed higher number of visible shoot and rootdevelopments compared to cv. Alphine. In general, better shoot and root developments and higher planlets survivedafter acclimatization were observed on the BA concentrations of 2 and 3 mg/l.
Bio-Oil dari Limbah Padat Sawit dengan Metoda Pirolisa
Authors: Saputra Edy , Bahri Syaiful
Published: December 2019

Bio oil is most important alternative energy resources for human life due to the production of fossil fuel tend todecline. Numbers of researches have been developed on alternative energy resources, such as the conversion ofbiomass. The palm solid waste which is consisted of wood, stem and empty bunch having size of diameter in rangeof 2 to 10 mesh were used in this work. The pyrolysis method is selected in this research. This process was donein stainless steel reactor having length and length of 60.0 and 3.81 cm respectively at temperature of 450 to 600oCunder nitrogen flow. Gas chromatography HP 5890 is utilized to analyze of the bio oil result. The result achieved thehighest yield at 500oC and particle diameter of 2-6 mesh.
Potensi Insektisida Melur (Brucea javanica L. Merr) dalam Mengendalikan Hama Kubis Crocidolomia pavonana (F.) (Lepidoptera: Crambidae) dan Plutella xylostella (L.) (Lepidoptera: Yponomeutidae)
Authors: Lina Eka Candra , Arneti Arneti , Prijono Djoko , Dadang Dadang
Published: December 2019

This study was conducted to evaluate the potency of Brucea javanica (melur) for controlling two species ofcrucifer pests, i.e. Crocidolomia pavonana and Plutella xylostella. Melur fruits, twigs, and leaves were extracteddirectly with methanol or sequentially with hexane, ethyl acetate, and methanol. The most active extract was thenfractionated by preparative layer chromatography using hexane, mixtures of ethyl acetate and methanol, andmethanol as eluents. The most active fraction was formulated as EC (emulsifiable concentrate) and WP (wettablepowder) formulations, and tested for their toxicity and antifeedant effect against C. pavonana and P. xylostellalarvae. The results showed that methanol extract of melur fruits was more active than that of twigs and leaves.Fractionation of methanol extract of melur fruits yielded an active fraction which was eluted with ethyl acetate-methanol 9:1. EC and WP formulations of melur fruits were active against C. pavonana larvae with LC50 of 0.39%and 0.21%, respectively. The same formulations were also active against P. xylostella larvae with LC50 of 0.31% and0.54%, respectively. In no-choice tests, the antifeedant effect of the EC formulation on C. pavonana larvae (feedinginhibition [FI]: 70.9%-97.5%) was higher than on P. xylostella larvae (FI: 52.2%-83.9%), but the antifeedant effect ofthe WP formulation on the two species was relatively the same. In a choice test, the EC formulation at LC 85completely inhibited feeding by C. pavonana larvae (FI: 100%).
Uji Toksisitas Akut Ekstrak Air Tanaman Sarang Semut (Myrmecodia pendans) Terhadap Histologi Organ Hati Mencit
Authors: Soeksmanto Arif , Simanjuntak Partomuan , Subroto Muhammad Ahkam
Published: December 2019

erbal products in powder or capsule forms made of sarang semut plant have been widely distributed in market.This plant is believed to treat several diseases, such as cancer, gout, liver, stroke, heart, hemorrhoid, back pain,allergy, and as tonicum to increase sexual desire. Information on the plants was still limited on plant distribution,ecology, ethnobotany, and taxonomy, without research on toxicity and clinical aspect. Considering that sarangsemut products has been distributed at market and limited scientific publication of the plant, hence acute toxicitytest of sarang semut extract should be conducted. The results showed that dose of 375 mg/kg bw caused liverdegeneration on day-5 and normal on day-19. Whereas dose of 3750 mg/kg bw caused cell necrosis up to day-12,degeneration still apparent on day-26.
Modifikasi dan Karakterisasi Titania (M-TiO2) Dengan Doping Ion Logam Transisi Feni dan Cuni
Authors: Rilda Yetria , Arief Syukri , Dharma Abdi , Alif Admin
Published: December 2019

Structure and size of titania nanoparticles have been modified with doping the transition metal (FeNiand CuNi) and controlling the calcinations temperature. Gel and M-TiO 2 powder were characterized byFT-IR showed the changed in intensity at 4000-400 cm-1. TG-DTA curve show the weigh of sample wasdecreased with the increasing of temperature 25-800°C. XRD pattern used to identify the titania structureshows the highest intensity of anatase at temperature calcination as 500°C. XRD of FeNi-TiO 2 and CuNi-TiO2 FeNi 10.5-41.9 nm and CuNi 12.1-33.5 converted using Debye-Scherrer’s equation and TEM analysisthe distribution of crystal size as FeNi-TiO2 and CuNi-TiO2 10-15 nm. SEM has shown that morphology ofdifferent surface from the FeNi-TiO 2 and CuNi-TiO 2 at different calcinations temperatures. Titaniacomposition can be determined by EDX analysis give as FeNi-TiO2 1:1, 97.01% and CuNi-TiO2 1:1, 94.63%respectly. The surface area has been determined by BET as FeNi-TiO 2 was 64.38 m2/g and CuNi-TiO2was 40.9 m2/g.
Sintesis Turunan 2’-hidroksi Kalkon melalui Kondensasi Claisen-Schmidt dan Uji Aktivitasnya sebagai Antimikroba
Authors: Eryanti Yum , Zamri Adel , Jasril Jasril , Rahmita Rahmita
Published: December 2019

Tiga senyawa turunan kalkon telah berhasil disintesis dari suatu keton aromatik dan aldehida aromatik melaluireaksi kondensasi Claisen-Schmidt dalam suasana basa. Turunan kalkon tersebut adalah 2’-hidroksi kalkon,(2Z,4Z)-1-(2-hidroksifenil)-5-fenilpenta-5-2-4-dien-1-on dan 2’-hidroksi-4-dimetilamino kalkon. Senyawa yangdihasilkan relatif murni, dilihat dari uji KLT yang menunjukkan satu noda dan titik leleh ketiganya berada padarange kecil. Elusidasi struktur didasarkan pada data spektra UV, IR, 1H-NMR dan 13C-NMR. Uji antimikroba terhadapketiga senyawa, hanya satu senyawa yang memberikan hasil positif yaitu senyawa 2’-hidroksi-4-dimetilaminokalkon pada konsentrasi 60 ìg terhadap bakteri B.subtilis.
Aktivitas Antibakteri Senyawa Turunan Oleanan dari Kayu Akar Pterospermum Subpeltatum
Authors: Salempa Pince , Noor Alfian , Hariani Nunuk , Harlim Tjodi
Published: December 2019

A triterpenoid derivative compound, oleane-12-en-2,3,23-triol-28-oat, from chloroform fraction of root wood ofPterospermum subpeltatum C. B. Rob (Sterculiaceae) was identified using IR, 1H dan 13C NMR data. The compoundhas shown toxicity against Artemia salina, LC50 of 46.06 μg/mL, and antibacterial potential upon Shigella boydii andStaphylococcus aureus with inhibition zones of 8.3 and 9.8 mm respectively.
Efektifitas Kitosan sebagai Inhibitor Korosi pada Baja Lunak dalam Air Gambut
Authors: Erna Maria , Emriadi Emriadi , Alif Admin , Arief Syukri
Published: December 2019

This research is intended to learn inhibition efficiency of mild steel corrosion in peat water using two type ofchitosan. First chitosan is without treatment and the second one is synthesized by ionotropic gelation method andthen is characterized by Fourier transform Infrared spectroscopy (FT-IR) and Scanning Electron Microscopy (SEM).Diameter of chitosan porous is about 500 nm which is measured based on morphological photo using SEM withinhomogeneous porous shape and porous distribution is unsmooth . Effect of chitin and chitosan on the corrosionof mild steel in peat water is studied using weight loss method. It is found that corrosion inhibition efficiencydepends on peat water pH, inhibition technique and interaction time. The results show that inhibition efficiency ofchitosan without treatment and with treatment are 88.73% and 93.32% respectively. The inhibition is assumed tooccur via physicsorption of the chitin and chitosan molecules on the metal surface. The Langmuir adsorptionisotherm is tested for their fit to the experimental data.
Inhibisi Lipase Pankreas secara In Vitro oleh Ekstrak Air dan Etanol Daun Asam Jawa (Tamarindus indica) dan Rimpang Kunci Pepet (Kaempferiae rotundae)
Authors: Pradono Dyah Iswantini , Darusman Latifah Kosim , Susanti Ai
Published: December 2019

Tamarind and kunci pepet has been used traditionally as herbal medicine to reduce body weight or used asantiobesity. But the mechanism in vitro of this herbal in reducing body weight has not been known yet. Theobjective of this research is to evaluate these herbal as antiobesity by their water and ethanol extracts capabilityin inhibiting pancreatic lipase activity in vitro at pH 8, incubation time 45 minutes, and temperature 400C. Pancreaticlipase used in this research was human pancreatic lipase with concentration of 1.4 × 10-5 μg/μl and the substratewas sesame oil with concentration of 16.2 μg/μl. The water and ethanol extracts of tamarind leaves containedalkaloids, flavonoids, saponins, steroids, and tannins. Water extract of kunci pepet contained alkaloids, flavonoids,saponins, and tannins, while ethanol extract contained alkaloids, flavonoids, saponins, and triterpenoids. Theresults of tamarind leaves extracts showed that ethanol extract in concentration of 150 ppm had the highestinhibitory effect, with the value of 49.0%. Water extract of kunci pepet at concentration of 200 ppm had the highestinhibition, with the value of 65.1%. These values were higher than inhibitory effect of Xenical® 100 ppm as thepositive control, with the inhibition value of 10.6%.
Karakterisasi Bakteri Asam Laktat Proteolitik pada Bekasam
Authors: Wikandari Prima Retno , Suparmo Suparmo , Marsono Yustinus , Rahayu Endang Sutriswati
Published: December 2019

Bekasam is a traditional fermented fish from Indonesia. It is made from fish  in which  the gills and  gut  had been  discarded,  washed,  and  mixed with salt, after two days, it was covered  with  rice  and  salt,  and then  fermented  for  5-7 days  at room  temperature.  Bekasam  is perceived to have antihypertensive activity, which is though to be the activity of bioactive peptides, the product of protein degradation  during  the bekasam fermentation. The research was aim to isolate the indigenous lactic  acid  bacteria  that  produce strong  proteolytic  capabilities.  The lactic  acid bacteria were collected from 3  kinds of bekasam (tilapia, milkfish, and tuna bekasam). Isolation  of the lactic acid bacteria was done         on agar medium containing MRS + CaCO3, and  the screening of the proteolytic bacteria  was done by growing the isolated  culture on  skim agar.   The colonies  that produce clear zone  were identified  as proteolytic  lactic acid  bacteria. Some of 180  isolated strains of acid  producing bacteria   that produce clear zone on MRS agar were found 150 strains of  lactic acid  bacteria, and  84  strains  showed  their  proteolytic activity.  The later  were identified morphologically and biochemical as Lactobacillus, Pediococcus and Leuconostoc genera.  Selection  was further conducted based on the height of the proteolytic and homofermentative fermentation activities. Upon species identification using API CH 50 kit,  the  selected strains belong to species of Lactobacillus plantarum, Lactobacillus pentosus, and Pediococcus pentosaseus.
Optimalisasi Teknik Ekstraksi dan Isolasi DNA Tanaman Suren (Toona Sureni Merr.) untuk Analisis Keragaman Genetik berdasarkan Random Amplified Polymorphic DNA (RAPD)
Authors: Restu Muh , Mukrimin Mukrimin , Gusmiaty Gusmiaty
Published: December 2019

The species of trees have different secondary compounds that need optimum extraction techniques. Appropriate extraction techniquesdetermine the quality and quantity of DNA produced. This research aims to found optimal of extraction methods and DNA isolation, thento created genome DNA in high quality and quantity, so that it can be using for genetic variation analyses in Suren (Toona sureni Merr.) byRandom Amplified Polymorphic DNA (RAPD). This study shows that DNA concentrates were 763.3 μg/ml, 180.0 μg/ml, 383.3 μg/ml, and436.7 μg/ml. While based on the results of PCR amplification using the primers OPD 03 shows that the four extraction methods used, the extraction method of number 3 has been able to produce genomic DNA with better quality and more number of bands, although the quantityis lower.
Kemampuan Kitinase Streptomyces RKt5 sebagai Antijamur terhadap Patogen Fusarium oxysporum
Authors: Yurnaliza Yurnaliza , Margino Sebastian , Sembiring Langkah
Published: December 2019

The purpose of the reasearch is to determine of antifungal activity from chitinase from Streptomyces RKt5 to inhibite growth of Fusariumoxysporum. The chitinase of Streptomyces RKt5 produced in liquid chitin medium with optimum conditions (inoculum concentration, pHand incubation time) and then partially purified with ammonium sulphate. The enzyme products were tested the antifungal activity againstF.oxysporum. The results showed that mycelial growth of F.oxysporum can be inhibited by Streptomyces RKt 5 in dual culture test. Thepartial purified chitinase enzyme couldn’t inhibit the fungal growth. But if the mycellium fragmented, the enzyme could degrade the fungalcell wall in incubation time. The frequency of fungal cell wall lysis and levels of N-acetylglucosamine released that have been increasingalong with the length of incubation time.
Struktur Komunitas Makrozoobentos di Perairan Sungai Musi Kawasan Pulokerto sebagai Instrumen Biomonitoring
Authors: Zulkifli Hilda , Setiawan Doni
Published: December 2019

The Pulokerto region has been planned for agrocity tourism by the Palembang City Government. The changing function of these areas givesome effects to quality of water and biota around the river. The aims of this research is to study of macrozoobenthos structure communityas biomonitoring instrument. The research was conducted during September until December 2010. The location sampling was determinedby purpossive random sampling method in 8 stations. The sampling in the moody area was carried out by Eckman grab. The results showedthat 14 genera have been classified into 5 classes such as Oligochaeta, Gastropoda, Insecta, Bivalvia and Crustacea. Population og. generais in around 75-600 ind/m 2. Diversity index is low until moderate with value 0.27-0.74 and there is no domination of species in thecommunity. The cluster analysis showed that 2 community groups of macrozoobenthos have relation with population of individu tophysicochemical quality of water. The overall study shows the balancing of community in the Pulokerto region but still susceptible topressure effect of environment.
Seksualitas dan Perkembangan Gamet Sponge Laut Aaptos aaptos Schmidt
Authors: Haris Abdul , Soedharma Dedi , Zamani Neviaty P. , Pariwono John I. , Rachmaniar Rachmaniar
Published: December 2019

This research was aimed to know the characteristics of gamet development of marine sponge Aaptos aaptos living in tropical waters of Barrang Lompo Island, Spermonde Archipelago, South Sulawesi. In order to know gamet development, it was conducted three periods of sample collection at each moon phase. After sample collection, the specimen were put into tissue cassette and then were removed to fixative solution of FAACC (for 100 mL = 10 mL formaldehyde solution of 37–40%: 5 mL glacial acetic acid: 1.3 g calcium chloride dihydrate: 85 mL destilate water) for +48 hours, and then were removed to 70% alcohol for temporary storage before doing histological preparation following standard procedure. Sexuality of marine sponge Aaptos aaptos living in Barrang Lompo Island is gonochoric. Spermatocyt developed in spermatic cyst, while oocyt developed in the mesohyl. Stage of male gamet development was divided into four phases i.e. spermatocyt I phase, spermatocyt II phase, spermatocyt III phase, and spermatocyt IV (spermatid) phase, similarly, female gamet develop- ment was divided into four phases i.e. oocyt I phase, oocyt II phase, oocyt III, oocyt IV phase. Each phase of gamet development had specific characterstics different from among each others.
Syarat Perlu dan Cukup untuk Keterbatasan Potensial Riesz di Ruang Morrey Klasik
Authors: Utoyo Mohammad Imam , Widodo Basuki , Nusantara Toto , Suhariningsih Suhariningsih
Published: December 2019

This script was aimed to determine the necessary conditions for boundedness of Riesz potential in the classical Morrey space. If these results are combined with previous research results will be obtained the necessary and sufficient condition for boundedness of Riesz potential. This necessary condition is obtained through the use of characteristic function as one member of the classical Morrey space.
3,3’-di-O-methylellagic acid, an Antioxidant Phenolics Compound from Sonneratia alba Bark
Authors: Herawati Netti , Firdaus Firdaus
Published: December 2019

Free radicals play an important role in some pathogenesis of serious diseases, such as neurodegenerative disorders, cancer,liver cirrhosis, cardiovascular diseases, atherosclerosis, cataracts, diabetes and inflammation. Compounds that can scavengefree radicals have great potential in ameliorating these diseases. It is reported that phenolic compounds in plants possessstrong antioxidant activity and may help to protect cells against the oxidative damage caused by free radicals. Previousstudy revealed that mangrove trees, Sonneratia alba Bark showed strong antioxidant activity. Ethyl acetate fractionexhibited the best antioxidant performance. The antioxidant activity of this fraction was attributed to the presence ofcompounds of different polarities such as phenolics. Furthermore, the phenolic antioxidant of ethyl acetate fraction werepurified and identified with UV, IR, MS, and 2D NMR spectrometry. 3,3’-di-O-methylellagic acid was found in brownamourphous powder. Antioxidant activity was evaluated and compared with L-(+)-ascorbic acid as standard by usingDPPH assay. The compound has strong antioxidant activity than ascorbic acid standar with the value of IC 50 11.35 and17.64 μg/mL, respectively. The high value of antioxidant activity of compound indicate that S. alba is a potential source ofnatural antioxidant agent.
Produksi Enzim Selulase olehAspergillus niger pada Ampas Sagu
Authors: Idiawati Nora , Harfinda Elliska Murni , Arianie Lucy
Published: December 2019

Production of cellulase by Aspergillus niger was carried out by growing the cultureson sago waste. Sago waste containscellulose that has not been used optimally. Cellulose is a polysaccharide consisting of glucose monomers linked by β-1,4-glycosides bonds. Glycoside bonds in cellulose can be enzymatically hydrolyzed into glucose with cellulase enzymes. Solid fermentation used to produce cellulase on sago waste as substrate was influenced by pH (3 to 6), moisture content(40% to 85%), and fermentation time (4 to 10 days). Products of the cellulase enzyme activity was measured by phenolsulfuricacid method. The results showed that the highest cellulase enzyme activity was 0.172 U/mL obtained at 85%moisture content, pH 5, and 8 days of fermentation time.
Antioxidant and Antibacterial Activity of Plectaranthus amboinicus Leaf Extract
Authors: Islami Deri , Teruna Hilwan Yuda , Eryanti Yum
Published: December 2019

Plectranthus amboinicus (Lour.) is a perennial plant belonging to the family of Lamiaceae which have been widely used in traditional herbal medicine. In the present study, the extracts of the leaves of P. amboinicus that was extracted by different solvents were evaluated for their antioxidant and antibacterial properties. The fresh leaves of the plant were extracted using subsequent methanol, n-hexane and dichloromethane. The antioxidant activity was determined by DPPH free radical scavenging assay and the antimicrobial activity was tested against Escherichia coli and Staphylococcus aureus by agar well diffusion assay. The results of antioxidant activity test showed that dichloromethane extract of the leaves had the highest antioxidant activity among all with  IC50 value of 50.2 μg/mL Methanol and n-hexane extracts were still active in DPPH with IC50 value of 71.3 μg/mL and 205.9 μg/mL, respectively. Furthermore, the dichloromethane and methanol ektracts have shown a promising antibacterial activity in E. coli. The findings indicated that dichloromethane and methanol extracts of the leaves of P. amboinicus were potential further study as herbal medicine as they showed high antioxidant and antibacterial activities.
PENGARUH KUALITAS SUMBER DAYA MANUSIA (SDM) TERHADAP EFEKTIFITAS KERJA DAN IMPLIKASINYA TERHADAP KINERJA KARYAWAN PELAKSANA DI PT. PERKEBUNAN NUSANTARA II (Persero)
Authors: Ananda Lubis Fajar Rezeki , Junaidi Junaidi , Lubis Yusniar , Lubis Syaifuddin
Published: December 2019

Penelitian ini bertujuan untuk mengetahui dan menganalisis pengaruh kualitas sumber daya manusia terhadap efektivitas kerja dan implikasinya terhadap kinerja karyawan pelaksana di PT. Perkebunan Nusantara III (Persero).Metode penelitian ini menggunakan pendekatan kuantitatif, jenis penelitiannya adalah survey.Sampel ditentukan dengan metode random sampling sebanyak 260 orang. Pengumpulan data melalui kuesioner. Data dianalisis dengan menggunakan analisis jalur. Hasil penelitian menunjukkan bahwa secara parsial, tingkat pengetahuan dan keterampilan berpengaruh positif dan signifikan terhadap efektivitas kerja karyawan, sedangkan sikap terhadap pekerjaan berpengaruh tidak signifikan. Nilai pengaruh yang paling tinggi adalah variabel keterampilan, artinya keterampilan berpengaruh lebih dominan terhadap efektivitas kerja karyawan pelaksana, dengan total pengaruh sebesar 62,74% (pengaruh langsung sebesar 56,7%). Secara simultan, kualitas SDM (tingkat pengetahuan, sikap terhadap pekerjaan dan keterampilan) secara langsung dan tidak langsung berpengaruh positif dan signifikan terhadap efektivitas kerja karyawan pelaksana. Nilai pengaruh kualitas SDM terhadap efektivitas kerja adalah sebesar 70,17% dengan pengaruh langsung sebesar 58,01%. Efektivitas kerja karyawan berpengaruh positif dan signifikan terhadap kinerja karyawan pelaksana di PT. Perkebunan Nusantara III (Persero), dengan total pengaruh sebesar 80,28%, artinya perubahan kinerja karyawan pelaksana dipengaruhi oleh perubahan efektivitas kerja sebesar 80,28%. Efektivitas kerja karyawanmerupakan variabel intervening variabel kualitas SDM terhadap kinerja karyawan pelaksana, karena terjadi peningkatan pengaruh variabel kualitas SDM terhadap kinerja karyawan sebesar 10,11% jika melalui variabel efektivitas kerja.