Kompetensi Pemerintah Desa dalam Pembangunan Desa di Desa Surya Indah Kecamatan Pangkalan Kuras Kabupaten Pelalawan

Goverment's competence is the important aspect for the rural development of Surya Indah. Training which is done by the Goverment of Surya Indah must be fit to the general training in order to produce the quality human resources. But the budgetary funds for the training is too low. Informations which is gotten from villagers said that the goverment is not good enough for the administration services.This research used theory of Badan Kepegawaian Negara says that competence is defined by indicators of knowledge,skill, and attitude. This research is classified as qualitative descriptive, the technique of collecting data in this research through observation and interview from everyone who are involved as informen.The result of this research shows that the competence of goverment in the Surya Indah village runs well. This is proved from the result of interviews and observation data about aspects knowledge, skills and attitude of govermnet to improve rural development. Factors which influences of the competence of the rural goverment are formal education, training and working experience. Development in Surya Indah are good enough proved from facilities and infrastructures are complete for community life

Eksplorasi Tagading terhadap Konsep Bagun Ruang

ABSTRACT This study aims to explore the relationship between the traditional musical instrument of the Toba Batak tribe known as Tagading and the concept of geometry. This study uses a qualitative approach through direct observation, interviews, and documentation to collect relevant data. The results of the study show that Tagading has geometric concepts in the form of geometric shapes and geometric shapes. The shape of the circle, as well as the structure and placement of the wood in Tagading illustrate these geometric concepts. Apart from that, the rhythmic patterns and long proportions of wood in Tagading also illustrate the relationship between music and mathematics. This research has important implications in developing mathematics learning methods that are relevant to local culture, as well as providing innovative learning experiences for students. The findings of this study can enrich our understanding of the relationship between culture, traditional music and geometric concepts

Characteristic of microstructure and magnetic properties in LaFeO3 using co-precipitation method

Abstrak. Perkembangan penelitian material ferit memiliki karakteristik mikrostruktur dan sifat magnetik yang berbeda-beda. Karakteristik mikrostruktur dan sifat magnetik dari Fe3O4 dan LaFeO3 telah berhasil dilakukan menggunakan metode ko-presipitasi lanthanum klorida dan pasir besi alam digunakan sebagai prekursor untuk preparasi sintesis nanopartikel Fe3O4 LaFeO3. Rasio molar antara lanthanum klorida dan pasir besi alam adalah 1:1, dan tanpa lanthanium. Karakterisasi sampel menggunakan XRD, SEM dan VSM. Hasil XRD menunjukkan bahwa kedua sampel telah memiliki fase tunggal tanpa pengotor kristal seperti La2O3 atau Fe2O3. Hasil morfologi SEM menunjukkan bahwa Fe3O4 dan LaFeO3 memiliki ukuran partikel yang random. Histogram distribusi sebaran partikel untuk kedua sampel ini menunjukkan range 50-300 nm. Sifat magnetik dari sampel Fe3O4 memiliki Ms= 20 emu/g, Mr= 9 emu/g dan H= 400 Oe, sedangkan sifat magnetik LaFeO3 yaitu Ms= 10 emu/g, Mr= 8 emu/g dan H= 410 Oe. Hasil mikrostruktur dan sifat magnetik dalam penelitian ini dapat mendukung dalam pembuatan magnet permanen.  Abstract. The development of research on ferrite materials has different microstructural characteristics and magnetic properties. The microstructural characteristics and properties of Fe3O4 and LaFeO3 have been successfully carried out using the co-precipitation method. Lanthanum chloride and natural iron sand were used as precursors for the preparation of the synthesis of Fe3O4 LaFeO3 nanoparticles. The molar ratio between lanthanum chloride and natural iron sand is 1:1, and without lanthanium. Sample characterization using XRD, SEM and VSM. The XRD results show that the second sample already has a single phase without crystal impurities such as La2O3 or Fe2O3. SEM morphology results show that Fe3O4 and LaFeO3 have random particle sizes. Histograms of particle distribution distribution for these two samples show the range of 50-300 nm. The nature of the sample Fe3O4 has Ms= 20 emu/g, Mr= 9 emu/g and H= 400 Oe, while the specific properties of LaFeO3 are Ms= 10 emu/g, Mr= 8 emu/g and H= 410 Oe. The results of the microstructure and magnetic properties in this study can support the manufacture of permanent magnet

EUSO Operations: Flight and Ground

Abstract The EUSO operations concept is described. Both the on-board and onground systems play an important role on operations. Since no permanent contact with the payload is provided, a considerable autonomy of the on-board system is required. The fulfilment of the scientific goals of the mission and the safety of the instrument require the definition of different operational modes and procedures. On-board, scientific and housekeeping data are collected and sent to ground, and control of the instrument subsystems is performed, based on on-board autonomous procedures and on telecommands sent from ground. On ground, telemetry is received, processed, monitored and archived. Telecommands are prepared for uplink, according to a defined mission activity planning

Preparation and characterization of ZnFe2O4 on the microstructures and magnetic properties

Abstrak. Telah berhasil dilakukan sintesis ZnFe2O4 menggunakan metode sol-gel. ZnO dan serbuk Fe3O4 dicampur dan dipanaskan menggunakan hotplate pada suhu 60oC selama satu jam. Efek dari doping ZnO pada mikrostruktur, morfologi dan sifat magnet dikarakterisasi menggunakan XRD, SEM dan VSM. Hasil dari XRD dan SEM mengkonfirmasi bahwa struktur ZnFe2O4 spinel ferit menunjukkan kristal rata-rata 1 μm. Kemudian sifat kemagnetan ZnFe2O4 yang dikonfirmasi bersifat paramagnetik dengan kondisi optimum dari sifat kemagnetan tersebut tercantum sebagai berikut: Ms 0.4 emu×g-1, Mr 0.2 emu×g-1, dan Hc 230 Oe.Abstract. ZnFe2O4 have been synthesized using sol-gel method. ZnO, and Fe3O4 powder was mixing with hotplate for one hour in 60oC. Effect of ZnO doped on microstructure, morphology and magnetic properties were investigated using XRD, SEM and VSM. The result of XRD and SEM confirmed that the ZnFe2O4 structure of spinel ferrite has average crystal of 1 μm. The magnetic properties of ZnFe2O4 confirmed paramagnetic with the optimum condition of the magnetic properties are listed in the following: Ms 0.4 emu×g-1, Mr 0.2 emu×g-1, and Hc 230 Oe.Keywords: ZnFe2O4, Sol-gel method, Microstructures, Magnetic Properties

Single hadron response measurement and calorimeter jet energy scale uncertainty with the ATLAS detector at the LHC

The uncertainty on the calorimeter energy response to jets of particles is derived for the ATLAS experiment at the Large Hadron Collider (LHC). First, the calorimeter response to single isolated charged hadrons is measured and compared to the Monte Carlo simulation using proton-proton collisions at centre-of-mass energies of sqrt(s) = 900 GeV and 7 TeV collected during 2009 and 2010. Then, using the decay of K_s and Lambda particles, the calorimeter response to specific types of particles (positively and negatively charged pions, protons, and anti-protons) is measured and compared to the Monte Carlo predictions. Finally, the jet energy scale uncertainty is determined by propagating the response uncertainty for single charged and neutral particles to jets. The response uncertainty is 2-5% for central isolated hadrons and 1-3% for the final calorimeter jet energy scale.Comment: 24 pages plus author list (36 pages total), 23 figures, 1 table, submitted to European Physical Journal

Measurement of the production of a W boson in association with a charm quark in pp collisions at √s = 7 TeV with the ATLAS detector

The production of a W boson in association with a single charm quark is studied using 4.6 fb−1 of pp collision data at s√ = 7 TeV collected with the ATLAS detector at the Large Hadron Collider. In events in which a W boson decays to an electron or muon, the charm quark is tagged either by its semileptonic decay to a muon or by the presence of a charmed meson. The integrated and differential cross sections as a function of the pseudorapidity of the lepton from the W-boson decay are measured. Results are compared to the predictions of next-to-leading-order QCD calculations obtained from various parton distribution function parameterisations. The ratio of the strange-to-down sea-quark distributions is determined to be 0.96+0.26−0.30 at Q 2 = 1.9 GeV2, which supports the hypothesis of an SU(3)-symmetric composition of the light-quark sea. Additionally, the cross-section ratio σ(W + +c¯¯)/σ(W − + c) is compared to the predictions obtained using parton distribution function parameterisations with different assumptions about the s−s¯¯¯ quark asymmetry

Measurement of χ c1 and χ c2 production with s√ = 7 TeV pp collisions at ATLAS

The prompt and non-prompt production cross-sections for the χ c1 and χ c2 charmonium states are measured in pp collisions at s√ = 7 TeV with the ATLAS detector at the LHC using 4.5 fb−1 of integrated luminosity. The χ c states are reconstructed through the radiative decay χ c → J/ψγ (with J/ψ → μ + μ −) where photons are reconstructed from γ → e + e − conversions. The production rate of the χ c2 state relative to the χ c1 state is measured for prompt and non-prompt χ c as a function of J/ψ transverse momentum. The prompt χ c cross-sections are combined with existing measurements of prompt J/ψ production to derive the fraction of prompt J/ψ produced in feed-down from χ c decays. The fractions of χ c1 and χ c2 produced in b-hadron decays are also measured