17 research outputs found
Edukasi Gizi Meningkatkan Pengetahuan dan Sikap Terkait Obesitas Anak Usia Sekolah di Panti Asuhan Al-Andalusia
No full textObesitas dan berat badan berlebih merupakan akibat dari penumpukan lemak dalam tubuh yang berlebihan. Berdasarkan data SSGI tahun 2022, prevalensi obesitas dan berat badan berlebih pada anak berusia 5-12 tahun adalah 10,8% memiliki berat badan berlebih dan 9,2% obesitas. Hal ini berarti berarti 2 dari 10 anak berusia 5-12 tahun memiliki berat badan berlebih atau obesitas. Pengabdian masyarakat dilakukan dalam bentuk pemberian edukasi gizi terkait obesitas pada anak usia sekolah yang bertujuan untuk meningkatkan pengetahuan dan sikap anak usia sekolah di Panti Asuhan Al-Andalusia sebagai upaya pencegahan obesitas. Peserta yang mengikuti kegiatan ini adalah 30 siswa dan siswi aktif yang berusia antara 6-16 tahun. Pengetahuan dan sikap terkait obesitas pada peserta diukur menggunakan kuesioner. Metode yang digunakan merupakan kombinasi antara ceramah, tanya jawab, dan focused group discussion (FGD) yang dilakukan secara bergantian dengan menggunakan media PowerPoint dan Nutricard obesitas. Kegiatan yang dilakukan menghasilkan peningkatan yang signifikan pada skor pengetahuan antara sebelum dan sesudah pemberian edukasi (p<0,05). Terdapat pula peningkatan sikap positif dari 63,3% menjadi 73,3%, tetapi perubahan ini tidak signifikan secara statistik (p>0,05). Beberapa faktor yang menyebabkan hasil sikap tidak signifikan antara lain adalah durasi pemberian edukasi gizi yang pendek dan kurangnya perhatian dan fokus anak-anak terhadap materi yang diberikan.Kata kunci: Edukasi gizi, Obesitas, Pengetahuan, Sikap
Erratum: Search for gravitational waves from compact binary coalescence in LIGO and Virgo data from S5 and VSR1 (Physical Review D - Particles, Fields, Gravitation and Cosmology)
No full textThis paper was published online on 5 November 2010 with an omission in the Collaboration author list. S. Dwyer has
been added as of 12 April 2012. The Collaboration author list is incorrect in the printed version of the journal
Publisher's Note: Search for gravitational waves from binary black hole inspiral, merger, and ringdown
No full textThis paper was published online on 6 June 2011 with an omission in the Collaboration author list. S. Dwyer has been
added as of 12 April 2012. The Collaboration author list is incorrect in the printed version of the journal
Directional Limits on Persistent Gravitational Waves Using LIGO S5 Science Data
No full textThe gravitational-wave (GW) sky may include nearby pointlike sources as well as stochastic backgrounds. We perform two directional searches for persistent GWs using data from the LIGO S5 science run: one optimized for pointlike sources and one for arbitrary extended sources. Finding no evidence to support the detection of GWs, we present 90% confidence level (C.L.) upper-limit maps of GW strain power with typical values between 2-20×10p[superscript -50] strain[superscript 2] Hz[superscript -1] and 5-35×10[superscript -49] strain[superscript 2] Hz[superscript -1] sr[superscript -1] for pointlike and extended sources, respectively. The latter result is the first of its kind. We also set 90% C.L. limits on the narrow-band root-mean-square GW strain from interesting targets including Sco X-1, SN 1987A and the Galactic center as low as ≈7×10[superscript -25] in the most sensitive frequency range near 160 Hz.Research CorporationDavid & Lucile Packard FoundationLeverhulme TrustCarnegie TrustUnited States. National Aeronautics and Space AdministrationAlfred P. Sloan FoundationNational Science Foundation (U.S.
All-sky search for gravitational-wave bursts in the first joint LIGO-GEO-Virgo run
No full textWe present results from an all-sky search for unmodeled gravitational-wave bursts in the data collected by the LIGO, GEO 600 and Virgo detectors between November 2006 and October 2007. The search is performed by three different analysis algorithms over the frequency band 50–6000 Hz. Data are analyzed for times with at least two of the four LIGO-Virgo detectors in coincident operation, with a total live time of 266 days. No events produced by the search algorithms survive the selection cuts. We set a frequentist upper limit on the rate of gravitational-wave bursts impinging on our network of detectors. When combined with the previous LIGO search of the data collected between November 2005 and November 2006, the upper limit on the rate of detectable gravitational-wave bursts in the 64–2048 Hz band is 2.0 events per year at 90% confidence. We also present event rate versus strength exclusion plots for several types of plausible burst waveforms. The sensitivity of the combined search is expressed in terms of the root-sum-squared strain amplitude for a variety of simulated waveforms and lies in the range 6×10[superscript -22] Hz[superscript -1/2] to 2×10[superscript -20 ] Hz[superscript -1/2]. This is the first untriggered burst search to use data from the LIGO and Virgo detectors together, and the most sensitive untriggered burst search performed so far.National Science FoundationScience and Technology Facilities Council, United KingdomAustralian Research CouncilIstituto Nazionale di Fisica Nucleare of ItalyMax Planck Society for the Advancement of ScienceState of Niedersachsen, GermanyInstitut National de Physique Nucléaire and de Physique des ParticulesAustralian Research CouncilCouncil of Scientific and Industrial Research of IndiaMEC (Spain)Conselleria d’Economia, Hisenda i Innovació of the Govern de les Illes BalearsFOM of the NetherlandsPolish Ministry of Science and Higher EducationFoundation for Polish ScienceRoyal Society, United KingdomScottish Funding CouncilScottish Universities Physics AllianceNational Aeronautics and Space AdministrationCarnegie TrustDavid and Lucile Packard FoundationAlfred P. Sloan FoundationResearch Corporatio
Search for gravitational waves from compact binary coalescence in LIGO and Virgo data from S5 and VSR1
No full textWe report the results of the first search for gravitational waves from compact binary coalescence using data from the Laser Interferometer Gravitational-Wave Observatory and Virgo detectors. Five months of data were collected during the Laser Interferometer Gravitational-Wave Observatory’s S5 and Virgo’s VSR1 science runs. The search focused on signals from binary mergers with a total mass between 2 and 35M⊙. No gravitational waves are identified. The cumulative 90%-confidence upper limits on the rate of compact binary coalescence are calculated for nonspinning binary neutron stars, black hole-neutron star systems, and binary black holes to be 8.7×10-3 yr-1 L10-1, 2.2×10-3 yr-1 L10-1, and 4.4×10-4 yr-1 L10-1, respectively, where L10 is 1010 times the blue solar luminosity. These upper limits are compared with astrophysical expectations.National Science Foundation (U.S.)United States. National Aeronautics and Space AdministrationCarnegie TrustLeverhulme TrustDavid & Lucile Packard FoundationAlfred P. Sloan FoundationResearch Corporatio
Joint searches for gravitational waves and high-energy neutrinos
No full textMany of the astrophysical sources and violent phenomena observed in our Universe are potential joint emitters of gravitational waves and high-energy cosmic radiation, in the form of photons, hadrons, and also neutrinos. This has triggered a collaborative analysis project between gravitational wave detectors and high-energy neutrino telescopes. In this article, we review some of the motivations for having pursuing science jointly and present the effort’s status
Open questions in astrophysically triggered gravitational wave searches
No full textSources of gravitational waves are often expected to also be observable through several other messengers, such as gamma rays, X-rays, optical, radio, and/or neutrino emission. Some of these channels are already being used in searches for gravitational waves with the LIGO-GEO600-Virgo interferometer network, and others are currently being incorporated into new searches. Astrophysical targets include gamma-ray bursts, soft-gamma repeaters, supernovae, and glitching pulsars. The simultaneous observation of electromagnetic or neutrino emission could be a crucial aspect for the first direct detection of gravitational waves. Information on the progenitor, such as trigger time, direction and expected frequency range, can enhance our ability to identify gravitational wave signatures with amplitudes close to the noise floor of the detector. Furthermore, combining gravitational waves with electromagnetic and neutrino observations will enable the extraction of scientific insight that was hidden from us before. The paper discusses the status of transient multimessenger detection efforts as well as intriguing questions that might be resolved in the future by advanced and third generation gravitational wave detector
Search for gravitational waves associated with the August 2006 timing glitch of the Vela pulsar
No full textThe physical mechanisms responsible for pulsar timing glitches are thought to excite quasinormal mode oscillations in their parent neutron star that couple to gravitational-wave emission. In August 2006, a timing glitch was observed in the radio emission of PSR B0833-45, the Vela pulsar. At the time of the glitch, the two colocated Hanford gravitational-wave detectors of the Laser Interferometer Gravitational-wave observatory (LIGO) were operational and taking data as part of the fifth LIGO science run (S5). We present the first direct search for the gravitational-wave emission associated with oscillations of the fundamental quadrupole mode excited by a pulsar timing glitch. No gravitational-wave detection candidate was found. We place Bayesian 90% confidence upper limits of 6.3 x 10(-21) to 1.4 x 10(-20) on the peak intrinsic strain amplitude of gravitational-wave ring-down signals, depending on which spherical harmonic mode is excited. The corresponding range of energy upper limits is 5.0 x 10(44) to 1.3 x 10(45) erg
Search for gravitational wave bursts from six magnetars
No full textSoft gamma repeaters (SGRs) and anomalous X-ray pulsars (AXPs) are thought to be magnetars: neutron stars powered by extreme magnetic fields. These rare objects are characterized by repeated and sometimes spectacular gamma-ray bursts. The burst mechanism might involve crustal fractures and excitation of non-radial modes which would emit gravitational waves (GWs). We present the results of a search for GW bursts from six galactic magnetars that is sensitive to neutron star f-modes, thought to be the most efficient GW emitting oscillatory modes in compact stars. One of them, SGR 0501+4516, is likely similar to 1 kpc from Earth, an order of magnitude closer than magnetars targeted in previous GW searches. A second, AXP 1E 1547.0-5408, gave a burst with an estimated isotropic energy >10(44) erg which is comparable to the giant flares. We find no evidence of GWs associated with a sample of 1279 electromagnetic triggers from six magnetars occurring between 2006 November and 2009 June, in GW data from the LIGO, Virgo, and GEO600 detectors. Our lowest model-dependent GW emission energy upper limits for band-and time-limited white noise bursts in the detector sensitive band, and for f-mode ringdowns (at 1090 Hz), are 3.0 x 10(44)d(1)(2) erg and 1.4 x 10(47)d(1)(2) erg, respectively, where d(1) = d(0501)/1 kpc and d(0501) is the distance to SGR 0501+4516. These limits on GW emission from f-modes are an order of magnitude lower than any previous, and approach the range of electromagnetic energies seen in SGR giant flares for the first time
