Science Teaching Efficacy Beliefs of Palestinian Elementary Education Students

To assess elementary education students’ self-efficacy beliefs in science teaching, the Science Teaching Efficacy Belief Instrument developed by Enochs and Riggs was used. The instrument consisted of two scales, Personal Science Teaching Efficacy Belief Scale and the Outcome Expectancy Scale. It was administered to 90 undergraduate university students majoring in elementary education at a large public Palestinian university. Results indicated that students’ self-efficacy beliefs in science teaching were comparable to those reported in the original study by Enochs and Riggs. Overall, the participants presented moderate to high self-efficacy in science teaching

ANALISIS DEBIT LIMPASAN DAN PENANGGULANGANNYA (STUDI KASUS – POKA PERUMNAS, KEL. TIHU, KEC. TELUK AMBON)

Daerah Poka Perumnas pada saat musim penghujan dengan intensitas yang tinggi sering terjadi genangan air dan banjir pada daerah kajian, karena saluran drainase yang ada tidak mempunyai sistem pembuangan yang baik dan dipenuhi oleh sedimentasi. Tujuan penelitian ini untuk menghitung besar debit limpasan, besar debit air buangan dan solusi penanggulangan pada saluran drainase eksisting. Analisis hidrologi curah hujan rancangan 10 tahun dengan distribusi Log Person Type III, debit banjir periode ulang 10 tahun dengan metode rasional. Analisis jumlah penduduk dengan metode geometrik. Analisis debit kumulatif dildapatkan dengan debit domestik dan debit banjir rencana kalaulang 10 tahun. Untuk analisis hidrolika dilakukan untuk mengetahui kapasitas saluran eksisting dan solusi penanggulangan. Berdasakan hasil analisis besar debit limpasan periode ulang 10 tahun (Q10thn) maksimal sebesar 0,108753 m3/det, debit minimum sebesar 0,030072 m3/det, debit air kotor pada sistem drainase akibat pertambahan jumlah penduduk sebesar 0,0000283 m3/det (debit maksimal) pada saluran K1 dan debit minimum terjadi pada saluran K15 sebesar 0,0000048 m3/det. Solusi penanggulangan yang terjadi pada sistem drainase terhadap beban debit yang harus di tampung terdapat beberapa saluran yang tidak mampu menampung beban debit sehingga perlu dievaluasi dengan memperbesar dimensi saluran dan normalisasi saluran yang ada seperti saluran nomor K1 dengan dimensi lebar (B) 0,86 m dan tinggi (H) 0,95 m, saluran nomor K12 dengan dimensi lebar (B) 0,50 m dan tinggi (H) 0,60 m

Post Newtonian SPH

We introduce an adaptation of the well known Tree+SPH numerical scheme to Post Newtonian (PN) hydrodynamics and gravity. Our code solves the (0+1+2.5)PN equations. These equations include Newtonian hydrodynamics and gravity (0PN), the first order relativistic corrections to those (1PN) and the lowest order gravitational radiation terms (2.5PN). We test various aspects of our code using analytically solvable test problems. We then proceed to study the 1PN effects on binary neutron star coalescence by comparing calculations with and without the 1PN terms. We find that the effect of the 1PN terms is rather small. The largest effect arises with a stiff equation of state for which the maximum rest mass density increases. This could induce black hole formation. The gravitational wave luminosity is also affected.Comment: 28 pages, 13 figures, revised version published in Ap

PENINGKATAN KAPASITAS PENGELOLA PERIKANAN WPPNRI-718 TERKAIT EAFM: PEMBELAJARAN DI KABUPATEN KEPULAUAN ARU

The implementation of fisheries management in Indonesia is guided by EAFM concept. Aru Islands, an area in WPPNRI-718 that contributes fishery production in Maluku and Indonesia significantly. Fishery activities dynamic in this region are high, requiring the strengthening of management capacity. Fisheries managers in this area do not yet have a strong understanding and capacity in implementing EAFM. Strengthening fisheries managers capacity was mandated by the Minister of Maritime Affairs and Fisheries Regulation Number 9 of 2015, as well as responding to the need for EAFM competency standards. The activity was attended by 14 participants from 11 institutions in Dobo. Five stages process including: pretest; presentation of introductory material and the six EAFM domains as well as discussions; field trip and data collection; analysis, results presentation, formulation of recommendations; and post test. The results showed an increase in EAFM knowledge around 92.86%, with the level of understanding change of 71.43

Quantum corrections to critical phenomena in gravitational collapse

We investigate conformally coupled quantum matter fields on spherically symmetric, continuously self-similar backgrounds. By exploiting the symmetry associated with the self-similarity the general structure of the renormalized quantum stress-energy tensor can be derived. As an immediate application we consider a combination of classical, and quantum perturbations about exactly critical collapse. Generalizing the standard argument which explains the scaling law for black hole mass, $M \propto |\eta-\eta^*|^\beta$, we demonstrate the existence of a quantum mass gap when the classical critical exponent satisfies $\beta \geq 0.5$. When $\beta < 0.5$ our argument is inconclusive; the semi-classical approximation breaks down in the spacetime region of interest.Comment: RevTeX, 6 pages, 3 figures included using psfi

PERILAKU LOAD TRANSFER INTERFACE BETON DAN TANAH STIFF CLAY PADA PONDASI TIANG BOR BERDASARKAN HASIL UJI INSTRUMENTASI DAN PEMODELAN UJI LABORATORIUM

Perilaku tiang bor akibat beban aksial pada tanah stiff clay dimonitor menggunakan uji beban (loading test) dengan menggunakan instrumentasi pada tiang bor ( test pile). Instrumentasi terdiri dari alat ukur regangan, alat pengukur berupa dial di bagian atas tiang ( tell tales) serangkaian Vibrating Wire Strain gauges (VWSG) pada beberapa segmen yang diharapkan merupakan segmen lapisan tanah. Hasil instrumentsi yang baik dapat memberikan data sebagai transfer beban yang dapat di analisa berdasarkan hasil pengukuran perpindahan strain-gauges dan beban bertahap yang diberikan. Penelitian ini juga didukung berdasarkan hasil uji lapangan Pressuremeter, Bor log , N-SPT. Tanah yang di analisa merupakan jenis Stiff clay pada proyek Senopati Jakarta.Perilaku interface antara tanah dan beton dapat dimodelkan di laboratorium menggunakan uji geser langsung antar muka tanah- beton dan uji Triaxial yang dicetak dengan asumsi kemiringan bidang longsor sebesar empat puluh lima derajat. Hasil penelitian menunjukkan bahwa tegangan geser pada interface tanah- beton lebih tinggi dari hasil uji lapangan yang dianalisa dari pembacaan instrumentasi. Hal ini dapat dikaitkan dengan ukuran sampel (efek skala) dan efek batas, dibandingkan dengan uji Triaxial CU hasil yang diperoleh memberikan nilai lebih kecil.Hasil penelitian menunjukkan pula bahwa nilai α ( alpha = factor adhesi) yang merupakan ratio perbandingan antara interface tanah-beton dan tanah asli masih dalam range yang direkomendasikan Kulhawi untuk tiang bor.Kata kunci: perilaku interface, transfer beban

Shock waves in tidally compressed stars by massive black holes

We interest in the case of a main-sequence star deeply penetrating within the tidal radius of a massive black hole. We focus on the compression phase leading to a so-called pancake configuration of the star at the instant of maximal compression. The aim is to study the tidal compression process paying particular attention to the development of shock waves;to deduce reliable estimates of the thermodynamical quantities involved in the pancake star; and to solve a controversy about whether or not thermonuclear reactions can be triggered in the core of a tidally compressed star. We have set up a one-dimensional hydrodynamical model well-adapted to the geometry of the problem. Based on the high-resolution shock-capturing Godunov-type approach, it allows to study the compression phase undergone by the star in the direction orthogonal to its orbital plane. We show the existence of two regimes depending on whether shock waves develop before or after the instant of maximal core compression. In both cases we confirm high compression and heating factors in the stellar core able to trigger a thermonuclear explosion. Moreover, we show that the shock waves carry outwards a brief but very high peak of temperature from the centre to the surface of the star. We tentatively conclude that the phenomenon could give rise to hard electromagnetic radiation, to be compared to some X-ray flares already observed in some galactic nuclei harbouring massive black holes. Finally, we estimate that the rate of pancake stars should be about $10^{-5}$ per galaxy per year. If generated in hard X- or $\gamma$-ray band, several events of this kind per year should be detectable within the full observable universe.Comment: 19 pages, 38 figures, 7 tables; v2 : corrected to match version accepted in Astron. Astrophys. Tables and references added, new simulations also performed for adiabatic index 4/

Canadian Network for Mood and Anxiety Treatments (CANMAT) and International Society for Bipolar Disorders (ISBD) 2018 guidelines for the management of patients with bipolar disorder.

The Canadian Network for Mood and Anxiety Treatments (CANMAT) previously published treatment guidelines for bipolar disorder in 2005, along with international commentaries and subsequent updates in 2007, 2009, and 2013. The last two updates were published in collaboration with the International Society for Bipolar Disorders (ISBD). These 2018 CANMAT and ISBD Bipolar Treatment Guidelines represent the significant advances in the field since the last full edition was published in 2005, including updates to diagnosis and management as well as new research into pharmacological and psychological treatments. These advances have been translated into clear and easy to use recommendations for first, second, and third- line treatments, with consideration given to levels of evidence for efficacy, clinical support based on experience, and consensus ratings of safety, tolerability, and treatment-emergent switch risk. New to these guidelines, hierarchical rankings were created for first and second- line treatments recommended for acute mania, acute depression, and maintenance treatment in bipolar I disorder. Created by considering the impact of each treatment across all phases of illness, this hierarchy will further assist clinicians in making evidence-based treatment decisions. Lithium, quetiapine, divalproex, asenapine, aripiprazole, paliperidone, risperidone, and cariprazine alone or in combination are recommended as first-line treatments for acute mania. First-line options for bipolar I depression include quetiapine, lurasidone plus lithium or divalproex, lithium, lamotrigine, lurasidone, or adjunctive lamotrigine. While medications that have been shown to be effective for the acute phase should generally be continued for the maintenance phase in bipolar I disorder, there are some exceptions (such as with antidepressants); and available data suggest that lithium, quetiapine, divalproex, lamotrigine, asenapine, and aripiprazole monotherapy or combination treatments should be considered first-line for those initiating or switching treatment during the maintenance phase. In addition to addressing issues in bipolar I disorder, these guidelines also provide an overview of, and recommendations for, clinical management of bipolar II disorder, as well as advice on specific populations, such as women at various stages of the reproductive cycle, children and adolescents, and older adults. There are also discussions on the impact of specific psychiatric and medical comorbidities such as substance use, anxiety, and metabolic disorders. Finally, an overview of issues related to safety and monitoring is provided. The CANMAT and ISBD groups hope that these guidelines become a valuable tool for practitioners across the globe

Discovery of a bright radio transient in M82: a new radio supernova?

In this Letter, we report the discovery of a new bright radio transient in M82. Using the Very Large Array, we observed the nuclear region of M82 at several epochs at 22 GHz and detected a new bright radio source in this galaxy's central region. We find a flux density for this flaring source that is ~300 times larger than upper limits determined in previous observations. The flare must have started between 2007 October 29 and 2008 March 24. Over the last year, the flux density of this new source has decreased from ~100 mJy to ~11 mJy. The lightcurve (based on only three data points) can be fitted better with an exponential decay than with a power law. Based on the current data we cannot identify the nature of this transient source. However, a new radio supernova seems to be the most natural explanation. With it's flux density of more than 100 mJy, it is at least 1.5 times brighter than SN1993J in M81 at the peak of its lightcurve at 22 GHz.Comment: accepted Astronomy & Astrophysics, 4 pages, 3 figures, final version & corrected abstract, also available at http://www.mpifr-bonn.mpg.de/staff/abrunthaler/pub.shtm