47 research outputs found

    Serangan Penggerek Padi Putih Dan Penampilan Agronomis Galur-galur Padi Sawah Irigasi

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    The white rice borer (Tryporyza innotata Walker) attack and agronomic traits of low land paddy lines. Field trial evaluation on 10 lines/varieties to observe the white rice borer (Tryporyza innotata Walker) attack and agronomic traits was conducted at AIAT Lampung on wet season of 2004. The trial was conducted in endemic white rice borer area in Rejo Basuki, Seputih Raman District, Central Lampung. Experiment was arranged in a Randomized Block Design with four replications. Variables observed were precentage of plants attack, yield at 14% moisture contents, period of flowering, number of grain, total grain per panicle, number of stem per hill, plants height, maturity, 100 seed weight and vegetative and generative vigors. Results indicated that among the lines/varieties there were significant different on white rice borer incidence. The BP-360e-Mr-79-Pn-2 line showed low incidence of white rice borer, higher number of stem per hill height plant 104.9 cm, total grain per panicle of 5200 kg, 1000 grain weight and good on vegetative and better generative vigor. But no different seed is compared with other lines, the BP-360e-Mr-79-Pn-2 lines showed 49. 9 empty grain per panicle and 80% mature at 105 days harvested

    Exploiting Homogeneity of Density in Incremental Hierarchical Clustering

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    Hierarchical clustering is an important tool in many applications. As it involves a large data set that proliferates over time, reclustering the data set periodically is not an efficient process. Therefore, the ability to incorporate a new data set incrementally into an existing hierarchy becomes increasingly demanding. This article describes HOMOGEN, a system that employs a new algorithm for generating a hierarchy of concepts and clusters incrementally from a stream of observations. The system aims to construct a hierarchy that satisfies the homogeneity and the monotonicity properties. Working in a bottom-up fashion, a new observation is placed in the hierarchy and a sequence of hierarchy restructuring processes is performed only in regions that have been affected by the presence of the new observation. Additionally, it combines multiple restructuring techniques that address different restructuring objectives to get a synergistic effect. The system has been tested on a variety of domains including structured and unstructured data sets. The experimental results reveal that the system is able to construct a concept hierarchy that is consistent regardless of the input data order and whose quality is comparable to the quality of those produced by non incremental clustering algorithms

    Methodology for Constructing Form Ontology

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    Form ontology was built to complement the knowledge   base   of   XReformer   system,   a   system   to generate web forms design automatically with case-based reasoning  (CBR)  approach.  Case  base  is  used  to  store cases of form design while the ontology is used to define forms and its elements and the relationship between them as well as between the elements itself. The ontology acts as a small-scale knowledge base that can grow to become a big one. The existing ontology development methodologies were too complicated and mature and they were feasible to apply on a large scale ontology. Certainly, it was not efficient to build a small-scale ontology with these highly- discipline  methodologies.  In  this  paper,  we  propose  a simple ontology development methodology but covers all important aspects of the development of ontologies, as an alternative to the existing methodologies

    Model Virtual Laboratory Fisika Modern Untuk Meningkatkan Keterampilan Generik Sains Calon Guru

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    : We have developed a virtual laboratory for teaching modern physics. The purpose of this study is to examine the effectiveness of a virtual laboratory model of modern physics on students\u27 generic science skills. The study involved 64 students who were divided into two groups, the experimental group and control group. The research instrument used a generic science skills test that is integrated with the mastery of concepts of modern physics. Data were analyzed by using mean-difference test and normalized gain scores. The results showed an increase in generic science skills in both groups. Indicators showed that the highest increases are logical inference capability and the ability to build concepts. These results indicate that the virtual laboratory model of modern physics is effective in enhancing generic science skills of students

    An Integrated New Course Book in Learning and Using English for Social Domains of English Partial Immersion Program at Vocational High Schools Sebagai Buku Acuan Berbahasa Inggris untuk SMK Bilingual di Daerah Istimewa Yogyakarta

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    Penelitian ini merupakan penelitian lanjutan hibah bersaing yang dilakukan oleh Andayani, Rahmi D., dkk (2007 dan 2008) yang bertujuan untuk membuat model pembelajaran English Immersion Program dan sosialisasi model tersebut di sekolah bilingual di DIY untuk kelas Bahasa Inggris dan MIPA. Hasil penelitian selanjutnya berupa buku ajar untuk kelas bilingual sebagai masukan kebijakan bagi institusi terkait dan untuk meningkatkan produktivitas sumber daya manusia dengan hasil perbukuan nasional berjudul: (a). An Integrated New Course Book In Learning And Using English For Social Sciences for English Partial Immersion Class Program for the VII Grade Students, (b). An Integrated New Course Book In Learning And Using English For Languages and Literatures for English Partial Immersion Class Program for the VII Grade Students. Hasil penelitian 2013 juga telah diterbitkan oleh The Language Institute of Thammasat University dalam international proceeding di Thailand, The 3rd International Conference on Foreign Language Learning and Teaching: Research, Renovation, and Reinforcement: Enhancing Quality in Language Education, dengan judul “The English Partial Immersion Model at Junior International School of Yogyakarta, Indonesia”. Desain penelitian berupa descriptive qualitative dan quantitative. Data berupa ujaran lisan dan bahasa tertulis, sumber data adalah siswa, guru, dan kepala sekolah di SMK domain Sosial, stakeholders, dan para peserta workshop. Alat pengumpul data berupa video, tape recorder, buku panduan, dan catatan-catatan lapangan, sedangkan instrumen penelitian berupa human instrument (key instrument) yang dilengkapi dengan kuesioner tentang uji coba buku ajar untuk SMK domain Sosial yang berupa The Bilingual Partial Immersion Course. Sedangkan uji validitas dilakukan dengan cara (1) triangulasi, (2) pemeriksaan sejawat, (3) uji coba buku dan (4) pencocokan hasil analisis terdahulu. Diharapkan dengan terwujudnya pembuatan buku di tahun ke 2 ini, guru-guru tersebut memiliki buku teks sebagai buku pegangan kelas bilingual khususnya untuk SMK domain Sosial. Target penelitian adalah memberi masukan kepada pembuat kebijakan pendidikan, 1 | Integrated New Course Book in Learning and Using English for Social Domains of English Partial Immersion Program at Vocational High Schools Sebagai Buku Acuan Berbahasa Inggris untuk SMK Bilingual di Daerah Istimewa Yogyakarta seperti Mendiknas, Direktorat Menengah Kejuruan terutama berkaitan dengan penunjukan sekolah yang dijadikan model untuk sekolah bilingual di Indonesia. Target lain berupa peningkatkan kinerja sumber daya manusia, kualitas pengajaran dan inovasi pendidikan, produktivitas, efisiensi internal, dan efisiensi eksternal, serta bahan kebijakan nasional dengan terwujudnya buku acuan yang berjudul AN INTEGRATED NEW COURSE BOOK IN LEARNING AND USING ENGLISH FOR SOCIAL DOMAINS OF ENGLISH PARTIAL IMMERSION PROGRAM AT VOCATIONAL HIGH SCHOOLS

    PENGEMBANGAN BAHAN AJAR BAHASA INGGRIS BERBASIS K-13 BERORIENTASI PADA HIGHER ORDER THINKING SKILLS DAN PENEKANAN PADA LOCAL WISDOM

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    Penelitian ini bertujuan untuk mengembangkan bahan ajar Bahasa Inggris berbasis K-13 dengan berorientasi pada Higher Order Thinking Skills (HOTS) dan kearifan lokal (local wisdom) bagi peserta didik di Sekolah Menengah Atas (SMA) di Daerah Istimewa Yogyakarta (DIY). Penelitian ini merupakan penelitian dan pengembangan. Pada tahun pertama penelitian ini menekankan analisis kebutuhan terkait dengan learning needs dan target needs yang digunakan sebagai dasar pengembangan bahan ajar Bahasa Inggris berbasis K-13 dengan berorientasi pada HOTS dan local wisdom bagi peserta didik SMA di DIY. Hasil analisis kebutuhan digunakan untuk mengembangkan draf bahan ajar termaksud. Dalam melaksanakan analisis kebutuhan, penelitian ini melibatkan 8 guru bahasa Inggris dan 395 peserta didik jurusan IPA dan IPS dari 8 SMA yang berbasis budaya di Kabupaten Sleman, Kabupaten Bantul, dan Kotamadya Yogyakarta DIY. Untuk pengumpulan data tersebut digunakan instrumen berbentuk lembar angket dan panduan wawancara. Data berbentuk kualitatif yang diperoleh dianalisis dengan menggunakan deskriptif kualitatif Produk yang dihasilkan pada tahun pertama ini berupa draf bahan ajar bahasa Inggris berbasis K-13 dengan berorientasi pada HOTS dan local wisdom dengan berdasarkan pada hasil analisis kebutuhan yang sudah dilakukan

    Diabetes Alters Intracellular Calcium Transients in Cardiac Endothelial Cells

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    Diabetic cardiomyopathy (DCM) is a diabetic complication, which results in myocardial dysfunction independent of other etiological factors. Abnormal intracellular calcium ([Ca2+]i) homeostasis has been implicated in DCM and may precede clinical manifestation. Studies in cardiomyocytes have shown that diabetes results in impaired [Ca2+]i homeostasis due to altered sarcoplasmic reticulum Ca2+ ATPase (SERCA) and sodium-calcium exchanger (NCX) activity. Importantly, altered calcium homeostasis may also be involved in diabetes-associated endothelial dysfunction, including impaired endothelium-dependent relaxation and a diminished capacity to generate nitric oxide (NO), elevated cell adhesion molecules, and decreased angiogenic growth factors. However, the effect of diabetes on Ca2+ regulatory mechanisms in cardiac endothelial cells (CECs) remains unknown. The objective of this study was to determine the effect of diabetes on [Ca2+]i homeostasis in CECs in the rat model (streptozotocin-induced) of DCM. DCM-associated cardiac fibrosis was confirmed using picrosirius red staining of the myocardium. CECs isolated from the myocardium of diabetic and wild-type rats were loaded with Fura-2, and UTP-evoked [Ca2+]i transients were compared under various combinations of SERCA, sarcoplasmic reticulum Ca2+ ATPase (PMCA) and NCX inhibitors. Diabetes resulted in significant alterations in SERCA and NCX activities in CECs during [Ca2+]i sequestration and efflux, respectively, while no difference in PMCA activity between diabetic and wild-type cells was observed. These results improve our understanding of how diabetes affects calcium regulation in CECs, and may contribute to the development of new therapies for DCM treatment
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