SINGLE RADIAL IMMUNE HEMOLYSIS TEST FOR DETECTION OF ESCHERICHIA-COLI THERMOLABILE ENTERO-TOXIN

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Keragaman Tumbuhan Pakan Burung Cenderawasih di Hutan Kampung Rhepang Muaif Kabupaten Jayapura

The aim of this research is to carry out a vegetation analysis looking at the types of plants at the seedling, sapling, pole and tree level which have the potential to serve as food for birds of paradise. The plotted line method is a measuring tool used to collect vegetation data at the seedling, sapling, pole and tree level. The data obtained is then analyzed to determine Density, Relative Density, Dominance, Relative Dominance, Frequency, Relative Frequency, Importance Value Index and Diversity Index. The research results showed that 5 types of food sources were obtained, namely Palaquium amboinense, Gnetum gnemon, Pometia acuminata and Syzygium sp. The structure and composition of vegetation at the seedling level consists of 21 species with H' (2.74) or medium, the sapling level consists of 34 species with H' (3.16), the pole level 27 species with H' (2.83), tree level 38 species with H' (3.06).   Keywords: Bird of Paradise, Food, Muaif Rhepang, Vegetatio

Performance of CMS muon reconstruction in pp collision events at sqrt(s) = 7 TeV

The performance of muon reconstruction, identification, and triggering in CMS has been studied using 40 inverse picobarns of data collected in pp collisions at sqrt(s) = 7 TeV at the LHC in 2010. A few benchmark sets of selection criteria covering a wide range of physics analysis needs have been examined. For all considered selections, the efficiency to reconstruct and identify a muon with a transverse momentum pT larger than a few GeV is above 95% over the whole region of pseudorapidity covered by the CMS muon system, abs(eta) < 2.4, while the probability to misidentify a hadron as a muon is well below 1%. The efficiency to trigger on single muons with pT above a few GeV is higher than 90% over the full eta range, and typically substantially better. The overall momentum scale is measured to a precision of 0.2% with muons from Z decays. The transverse momentum resolution varies from 1% to 6% depending on pseudorapidity for muons with pT below 100 GeV and, using cosmic rays, it is shown to be better than 10% in the central region up to pT = 1 TeV. Observed distributions of all quantities are well reproduced by the Monte Carlo simulation.Comment: Replaced with published version. Added journal reference and DO

Performance of CMS muon reconstruction in pp collision events at sqrt(s) = 7 TeV

The performance of muon reconstruction, identification, and triggering in CMS has been studied using 40 inverse picobarns of data collected in pp collisions at sqrt(s) = 7 TeV at the LHC in 2010. A few benchmark sets of selection criteria covering a wide range of physics analysis needs have been examined. For all considered selections, the efficiency to reconstruct and identify a muon with a transverse momentum pT larger than a few GeV is above 95% over the whole region of pseudorapidity covered by the CMS muon system, abs(eta) < 2.4, while the probability to misidentify a hadron as a muon is well below 1%. The efficiency to trigger on single muons with pT above a few GeV is higher than 90% over the full eta range, and typically substantially better. The overall momentum scale is measured to a precision of 0.2% with muons from Z decays. The transverse momentum resolution varies from 1% to 6% depending on pseudorapidity for muons with pT below 100 GeV and, using cosmic rays, it is shown to be better than 10% in the central region up to pT = 1 TeV. Observed distributions of all quantities are well reproduced by the Monte Carlo simulation.Comment: Replaced with published version. Added journal reference and DO

A Search for Dark Higgs Bosons

Recent astrophysical and terrestrial experiments have motivated the proposal of a dark sector with GeV-scale gauge boson force carriers and new Higgs bosons. We present a search for a dark Higgs boson using 516 fb-1 of data collected with the BABAR detector. We do not observe a significant signal and we set 90% confidence level upper limits on the product of the Standard Model-dark sector mixing angle and the dark sector coupling constant.Comment: 7 pages, 5 postscript figures, published version with improved plots for b/w printin

Performance of the CMS Cathode Strip Chambers with Cosmic Rays

The Cathode Strip Chambers (CSCs) constitute the primary muon tracking device in the CMS endcaps. Their performance has been evaluated using data taken during a cosmic ray run in fall 2008. Measured noise levels are low, with the number of noisy channels well below 1%. Coordinate resolution was measured for all types of chambers, and fall in the range 47 microns to 243 microns. The efficiencies for local charged track triggers, for hit and for segments reconstruction were measured, and are above 99%. The timing resolution per layer is approximately 5 ns

X-ray emission from the Sombrero galaxy: discrete sources

We present a study of discrete X-ray sources in and around the bulge-dominated, massive Sa galaxy, Sombrero (M104), based on new and archival Chandra observations with a total exposure of ~200 ks. With a detection limit of L_X = 1E37 erg/s and a field of view covering a galactocentric radius of ~30 kpc (11.5 arcminute), 383 sources are detected. Cross-correlation with Spitler et al.'s catalogue of Sombrero globular clusters (GCs) identified from HST/ACS observations reveals 41 X-rays sources in GCs, presumably low-mass X-ray binaries (LMXBs). We quantify the differential luminosity functions (LFs) for both the detected GC and field LMXBs, whose power-low indices (~1.1 for the GC-LF and ~1.6 for field-LF) are consistent with previous studies for elliptical galaxies. With precise sky positions of the GCs without a detected X-ray source, we further quantify, through a fluctuation analysis, the GC LF at fainter luminosities down to 1E35 erg/s. The derived index rules out a faint-end slope flatter than 1.1 at a 2 sigma significance, contrary to recent findings in several elliptical galaxies and the bulge of M31. On the other hand, the 2-6 keV unresolved emission places a tight constraint on the field LF, implying a flattened index of ~1.0 below 1E37 erg/s. We also detect 101 sources in the halo of Sombrero. The presence of these sources cannot be interpreted as galactic LMXBs whose spatial distribution empirically follows the starlight. Their number is also higher than the expected number of cosmic AGNs (52+/-11 [1 sigma]) whose surface density is constrained by deep X-ray surveys. We suggest that either the cosmic X-ray background is unusually high in the direction of Sombrero, or a distinct population of X-ray sources is present in the halo of Sombrero.Comment: 11 figures, 5 tables, ApJ in pres

PELATIHAN GURU MGMP IPA DALAM IMPLEMENTASI MODEL PEMBELAJARAN PROBALUSAN IPA PADA SMP DI KOTA JAYAPURA

Kegiatan pengabdian kepada masyarakat berupa pelatihan guru-guru MGMP IPA dalam implementasi model Probalusan dalam pembelajaran IPA di SMP. Pelatihan ini diharapkan guru-guru sebagai fasilitator yang kreatif dan inovatif memiliki keterampilan dalam menyelenggarakan pembelajaran menggunakan model pembelajaran inovatif. Sasaran kegiatan pengabdian kepada masyarakat ini adalah guru-guru MGMP IPA di kota Jayapura yang berjumlah 41 orang. Metode pelaksanaan kegiatan pengabdian, meliputi penyampaian materi model pembelajaran Probalusan IPA, simulasi sintaks model pembelajaran Probalusan IPA dan dilanjutkan dengan diskusi seputar model pembelajaran &nbsp;Probalusan IPA untuk memberi kesempatan bagi guru untuk mengatasi kendala dalam menerapkan model&nbsp; &nbsp;Probalusan IPA. Manfaat yang diperoleh guru dari kegiatan pengabdian kepada masyarakat ini adalah memperoleh pengetahuan tentang model pembelajaran inovatif yaitu model Probalusan IPA dan dapat menerapkannya dalam pembelajaran IPA di SMP. Hasil angket respon guru setelah mengikuti pelatihan untuk kategori sangat setuju diatas 85% dari 41 guru dan setuju 15% artinya guru sangat senang mengikuti kegiatan pelatihan implementasi model pembelajaran Probalusan IPA. Menurut Guru pelatihan ini membantu mereka memahami model pembelajaran inovatif diantaranya model Probalusan IPA. Guru lebih mengerti konsep dasar model pembelajaran Probalusan IPA, disertai contoh-contoh praktis yang berguna untuk diterapkan di kelas. Pelatihan ini mendorong guru-guru sebagai fasilitator lebih kreatif dan inovatif, serta memiliki keterampilan dalam menyelenggarakan pembelajaran menggunakan model pembelajaran inovatif. Implementasi model Probalusan IPA menciptakan pembelajaran yang lebih aktif, inovatif dan menyenangkan sehingga tujuan &nbsp;pembelajaran tercapai dengan mudah

Linkage Mapping of Stem Saccharification Digestibility in Rice

Rice is the staple food of almost half of the world population, and in excess 90% of it is grown and consumed in Asia, but the disposal of rice straw poses a problem for farmers, who often burn it in the fields, causing health and environmental problems. However, with increased focus on the development of sustainable biofuel production, rice straw has been recognized as a potential feedstock for non-food derived biofuel production. Currently, the commercial realization of rice as a biofuel feedstock is constrained by the high cost of industrial saccharification processes needed to release sugar for fermentation. This study is focused on the alteration of lignin content, and cell wall chemotypes and structures, and their effects on the saccharification potential of rice lignocellulosic biomass. A recombinant inbred lines (RILs) population derived from a cross between the lowland rice variety IR1552 and the upland rice variety Azucena with 271 molecular markers for quantitative trait SNP (QTS) analyses was used. After association analysis of 271 markers for saccharification potential, 1 locus and 4 pairs of epistatic loci were found to contribute to the enzymatic digestibility phenotype, and an inverse relationship between reducing sugar and lignin content in these recombinant inbred lines was identified. As a result of QTS analyses, several cell-wall associated candidate genes are proposed that may be useful for marker-assisted breeding and may aid breeders to produce potential high saccharification rice varieties

Distribution of mosquitoes in the South East of Argentina and first report on the analysis based on 18S rDNA and COI sequences

Although Mar del Plata is the most important city on the Atlantic coast of Argentina, mosquitoes inhabiting such area are almost uncharacterized. To increase our knowledge in their distribution, we sampled specimens of natural populations. After the morphological identification based on taxonomic keys, sequences of DNA from small ribosomal subunit (18S rDNA) and cytochrome c oxidase I (COI) genes were obtained from native species and the phylogenetic analysis of these sequences were done. Fourteen species from the genera Uranotaenia, Culex, Ochlerotatus and Psorophora were found and identified. Our 18S rDNA and COI-based analysis indicates the relationships among groups at the supra-species level in concordance with mosquito taxonomy. The introduction and spread of vectors and diseases carried by them are not known in Mar del Plata, but some of the species found in this study were reported as pathogen vectors