Dust sublimation by GRBs and its implications

The prompt optical flash recently detected accompanying GRB990123 suggests that, for at least some GRBs, gamma-ray emission is accompanied by prompt optical-UV emission with luminosity L(1-7.5eV)=10^{49}(\Delta\Omega/4\pi)erg/s, where \Delta\Omega is the solid angle into which gamma-ray and optical-UV emission is beamed. Such an optical-UV flash can destroy dust in the beam by sublimation out to an appreciable distance, approximately 10 pc, and may clear the dust out of as much as 10^7(\Delta\Omega/4\pi)M_sun of molecular cloud material on an apparent time scale of 10 seconds. Detection of time dependent extinction on this time scale would therefore provide strong constraints on the GRB source environment. Dust destruction implies that existing, or future, observations of not-heavily-reddened fireballs are not inconsistent with GRBs being associated with star forming regions. In this case, however, if gamma-ray emission is highly beamed, the expanding fireball would become reddened on a 1 week time scale. If the optical depth due to dust beyond approximately 8 pc from the GRB is 0.2<\tau_V<2, most of the UV flash energy is converted to infra-red, \lambda \sim 1 micron, radiation with luminosity \sim 10^{41} erg/s extending over an apparent duration of \sim 20(1+z)(\Delta\Omega/0.01) day. Dust infra-red emission may already have been observed in GRB970228 and GRB980326, and may possibly explain their unusual late time behavior.Comment: 16 pages, including 1 figure, submitted to Ap

SIMPLE ATTACK ANALYSIS OF JUNIOR FEMALE EPEE FENCERS

The objectives of this study were to profile basic fencing variables and to determine the inter-relationship of these variables on attack for junior female epee fencers. The motion was filmed with a video camera (50Hz) during the 6th Asian Youth and Cadet Fencing Championships. Then the selected video materials were processed by Peak Performance System to produce co-ordinates for selected body landmarks. The correlation coefficients of reaction time versus sword separation (r=0.55,

Kesesuaian Gejala Klinis Malaria dengan Parasitemia Positif di Wilayah Puskesmas Wairasa Kabupaten Sumba Tengah Provinsi Nusa Tenggara Timur

Salah satu indikator penentuan endemisitas malaria adalah Annual Malaria Incidence (AMI). Angka AMI Puskesmas Wairasa Kabupaten Sumba Tengah selama tiga tahun berturut-turut (2009, 2010, 2011) sebesar 144°, 187°, dan 108°. Tujuan kegiatan adalah menilai kesepakatan antara hasil pemeriksaan mikroskopis Puskesmas Wairasa dan Loka Litbang P2B2 Waikabubak dan mengidentifikasi gejala klinis yang dapat menjadi penanda sesorang positif malaria. Desain kegiatan cross sectional, subyek kegiatan adalah pasien tersangka malaria yang berkunjung ke puskesmas. Kesepakatan hasil pemeriksaan kedua mikroskopis cukup tinggi (0,92). Disimpulkan bahwa kesepakatan pemeriksaan cukup baik. Ada 14 gejala klinis pada responden dengan parasitemia positif yaitu demam, mengigil, sakit kepala, berkeringat, suhu badan meningkat (37°C), mual, muntah, pucat, pegal (nyeri otot), nafsu makan kurang, diare, batuk, pilek, pembesaran limpa. Gejala yang secara bermakna menunjukkan kemungkinan lebih besar infeksi malaria adalah demam (OR 4,945 95% CI 2,010-12,168), sakit kepala (OR 2,230 95% CI 1,551-3,470), pucat (OR 1,557 95% CI 1,046-2,318), dan badan pegal (nyeri otot) (OR 1,778 95% CI 1,778-2,622), sehingga dapat dijadikan sebagai salah satu tanda adanya infeksi malaria di daerah ini.Kata Kunci : Malaria, Parasitemia, gejala klinisAbstractOne of the indicator to determine malaria endemicity is the Annual Malaria Incidence (AMI). The number of AMI at Wairasa Health Center, Central Sumba within three consecutive year (2009,2010 and 2011) were 144°, 187° and 108°. The aim of the study were to confirm the results of microscopic examination between Wairasa Health Center and Loka Litbang P2B Waikabubak and to identify clinical symptoms that can be used as a marker of malaria positive. The study used cross sectional design, the sampel were patient suspected with malaria visiting the health center. The conformity of the microscopic assessment between the two centers are quite high (0.92). The symptoms found in patient with parasitemia positive in which fever, headache, pale and body aches (muscle pain) are significantly showed the likelihood of having malaria infection and therefore can be used as a marker of malaria infection in central Sumba. The conclusion that the agreement is quite good examination. Based on multivariate analysis found four symptoms were significantly associated with parasitaemia of fever (95% CI 2.010 to 12.168 4.945), headache (OR 2.230 95% CI 1.551 to 3.470), white (OR 1.557 95% CI 1.046 to 2.318), body feels stiff (OR 1.778 95% CI 1.778 to 2.622) can be one sign of malaria infection in this area.Keywords : Malaria, Parasitemia, clinical symptom

Ultrahigh sensitivity of slow-light gyroscope

Slow light generated by Electromagnetically Induced Transparency is extremely susceptible with respect to Doppler detuning. Consequently, slow-light gyroscopes should have ultrahigh sensitivity

Reinterpreting Glover&#039;s garden

Reinterpreting Glover’s Garden is a research project identifying the Kilmore region’s indigenous flora, and developing an artist’s garden incorporating the extant species. The resultant garden follows colonial design principles and reinterprets the layout of John Glover’s garden in Tasmania. John Glover selected Mills’ Plains, Tasmania, as his principle place of residence in 1832, and amongst other activities established an artist’s garden. This was possibly the first substantive garden in the Colony consciously designed by a person with recognised artistic sensibilities. It is the north-south orientation of Glover’s garden plan that underpins the layout of the Quarry Ridge garden. Colonial garden design incorporated introduced species, separated from indigenous plants, in a naturalised setting. The ‘colonial’ garden at Quarry Ridge has been exclusively planted with the indigenous flora of the region. By doing this, I hope to offer a more sustainable horticultural model for domestic gardeners. The trope of putting order into indigenous planting practices is a strategy to challenge those who are accustomed to formal gardens using introduced plants. There are four garden spaces on the project site. The highest follows John Glover’s north-south garden orientation, overlaid with a formal colonial inspired layout. The garden overlooks a further three informal, indigenous planted series of Hill Gardens below. Land contours flow in long sweeping lines running north to south, in harmony with distant ranges on the horizon, close by vineyard rows and defining windbreaks of Leyland Cyprus. It was important to keep these existing linear contours in order to retain the series of modulating planes, visually moving from garden space to landscape, to horizon, from intimacy to infinity. Three questions underpin this research: 1. How can colonial garden design be re-employed in a contemporary context to raise awareness of indigenous landscape loss? 2. How can I use knowledge of flora loss in the Kilmore region to reinstate a local indigenous habitat in the context of an artist garden? 3. How can I bring knowledge of site-sensitivity concepts in art practice to my artist’s garden? The following strategies were employed to achieve the project objectives: - Reinterpreting Colonial garden design to establish an indigenous garden at Quarry Ridge, Kilmore. - Identifying Kilmore’s indigenous plants, collecting seed, propagation, and documenting the process of creating a site-sensitive garden appropriate to the Kilmore environs. - Expanding the understanding and appreciation of Kilmore’s indigenous plants, their ongoing importance to the health and well being of indigenous fauna, and the importance of a sustainable indigenous ecological system - Developing strategies to link new site-specific knowledge with existing artistic debate and practice surrounding global ecological change

Non-minimal Einstein-Yang-Mills-Higgs theory: Associated, color and color-acoustic metrics for the Wu-Yang monopole model

We discuss a non-minimal Einstein-Yang-Mills-Higgs model with uniaxial anisotropy in the group space associated with the Higgs field. We apply this theory to the problem of propagation of color and color-acoustic waves in the gravitational background related to the non-minimal regular Wu-Yang monopole.Comment: 14 pages, no figure

Pemetaan Daerah Penyebaran Kasus Rabies Dengan Metode Gis (Geographical Informasion System) Di Kabupaten Sikka Provinsi Nusa Tenggara Timur

.Rabies has become an important public health concern in countries in Asia and Afrika. Rabies isstill problem for world health including Indonesia.Rabies in Indonesia to be series problem healthcommunity because always almost fatal after symptom clinical of a disease with level death untill100%. Provinsi East Nusa Tenggara quantity case from the bite of a mad dog is 16.000 case oneyear. The aim of this research is to analyze the epidemiological spatial pattern of rabies in Sikkadistrict in 2010 using Geographical Information System (GIS) in case mapping the distribute areato be as information in planning prevention and eliminasi rabies Sikka district. Tipe of research iscross sectional using Geographical Information Sistem approach which is able to visualize,excess, sort, and the data spatial. The population is the whole cases of rabies in register of district health office and register community health centers at Sikka district. Sample is the wholefill the conditioan was 135 rabies patient. The analysis of the spatial pattern showed stratificationspreading rabies case can be devided in 3 cluster. Centers dot cluster I in coordinate 8,622296 LS122,215432 BT with radius 1,48 Km. Quantity dot case 58 (42,96%). Centres dot cluster II incoordinate 8,699204 LS 122,31267313 with radius 13,25 Km.Quantity dot case 41 (30,37%) andcenters dot cluster III in coordinate 8,681881 LS 122,167690 BT. Quantitydot case 36 (26,66% ).Specification cluster used Satcan v7.0.2 witth analysis space time permutation. Radius of casewith community health centers to have been divided in 3 zone buffer. Zone buffer 1. The distance2 Km subdistrict Alok, zone buffer 2 the distance 4 Km subdistrict Kewapante also Nita and zonebuffer 3 the distance 8 Km subdistrict Kangae

Light Rays at Optical Black Holes in Moving Media

Light experiences a non-uniformly moving medium as an effective gravitational field, endowed with an effective metric tensor $\tilde{g}^{\mu \nu}=\eta^{\mu \nu}+(n^2-1)u^\mu u^\nu$, $n$ being the refractive index and $u^\mu$ the four-velocity of the medium. Leonhardt and Piwnicki [Phys. Rev. A {\bf 60}, 4301 (1999)] argued that a flowing dielectric fluid of this kind can be used to generate an 'optical black hole'. In the Leonhardt-Piwnicki model, only a vortex flow was considered. It was later pointed out by Visser [Phys. Rev. Lett. {\bf 85}, 5252 (2000)] that in order to form a proper optical black hole containing an event horizon, it becomes necessary to add an inward radial velocity component to the vortex flow. In the present paper we undertake this task: we consider a full spiral flow, consisting of a vortex component plus a radially infalling component. Light propagates in such a dielectric medium in a way similar to that occurring around a rotating black hole. We calculate, and show graphically, the effective potential versus the radial distance from the vortex singularity, and show that the spiral flow can always capture light in both a positive, and a negative, inverse impact parameter interval. The existence of a genuine event horizon is found to depend on the strength of the radial flow, relative to the strength of the azimuthal flow. A limitation of our fluid model is that it is nondispersive.Comment: 30 pages, LaTeX, 4 ps figures. Expanded discussion especially in section 6; 5 new references. Version to appear in Phys. Rev.

PENGEMBANGAN MANAJEMEN SISTEM INFORMASI DI UNIT PELAKSANA TEKNIS LABORATORIUM LAHAN KERING KEPULAUAN UNIVERSITAS NUSA CENDANA

Kemajuan teknologi informasi yang sangat cepat telah memacu perubahan berbagai aspek kehidupan. Perkembangan teknologi ini sangat berdampak salah satunya pada bidang pendidikan yang ditandai dengan teknologi pembelajaran berbasis online, mobile, multimedia, sarana informasi, interaksi, hingga media promosi. Perkembangan teknologi ini tidak terlepas dari kemudahan akses terhadap berbagai informasi dan tidak dibatasi oleh ruang dan waktu. Teknologi informasi telah dimanfaatkan berbagai lembaga untuk perbaikan kualitas pengelolaan dan kinerja lembaga. Unit Pelaksana Teknis (UPT) Laboratorium Lahan kering Kepulauan (LLKK) Universitas Nusa Cendana (Undana) merupakan salah satu laboratorium pendukung kegiatan Tri-Dharma civitas Undana melalui sistem kerjasama dan memiliki lahan yang menghasilkan produk-produk hasil pertanian, peternakan, dan perikanan. Kegiatan pengabdian masyarakat ini bertujuan untuk membentuk berbagai platform media sosial lembaga UPT. LLKK sebagai sistem informasi dan mengembangkan pengelolaan website sebagai sistem informasi. Metode yang digunakan berupa pengelolaan media sebagai sistem informasi untuk meningkatkan kinerja UPT. LLKK dengan pembentukan platform media sosial, pengelolaan website, penerapan, dan tahap evaluasi. Pembuatan berbagai platform media sosial UPT. LLKK diantaranya facebook, youtube, dan instagram. Media sosial ini akan menjadi wadah informatif sehingga lembaga dapat memberikan berbagai macam informasi yang dapat&nbsp; diakses oleh masyarakat luas dengan mudah. Platform media sosial yang sudah terbentuk lalu diintegrasikan dalam website UPT. LLKK agar keseluruhan media dapat menjadi satu kesatuan sistem infromasi. Pengelolaan website UPT. LLKK yang terintegrasi dengan media sosial akan meningkatkan efisiensi penyebaran informasi karena masyarakat semakin mudah untuk mengakses hanya dengan bantu kata kunci dalam mesin pencari internet. Perkembangan media sosial dan website dinilai sangat relevan dengan kondisi saat ini, sehingga perlu dilakukan pengelolaan pada sistem informasi tersebut untuk pengembangan kinerja UPT. LLKK