3,253 research outputs found
Diffusion in the Markovian limit of the spatio-temporal colored noise
We explore the diffusion process in the non-Markovian spatio-temporal
noise.%the escape rate problem in the non-Markovian spatio-temporal random
noise. There is a non-trivial short memory regime, i.e., the Markovian limit
characterized by a scaling relation between the spatial and temporal
correlation lengths. In this regime, a Fokker-Planck equation is derived by
expanding the trajectory around the systematic motion and the non-Markovian
nature amounts to the systematic reduction of the potential. For a system with
the potential barrier, this fact leads to the renormalization of both the
barrier height and collisional prefactor in the Kramers escape rate, with the
resultant rate showing a maximum at some scaling limit.Comment: 4pages,2figure
A Factor Analytic Validation Study of the Scale of Teachers\u27 Attitudes Towards Inclusive Classrooms (STATIC))
General and special education teachers (N = 125) completed the Scale of Teachers’ Attitudes towards Inclusive Classrooms (STATIC). The internal consistency of the instrument was strong with an alpha of .89. The measure demonstrated excellent test-retest reliability (r = .99) and a dependent t-test was non-significant, indicating mean group temporal stability. An exploratory factor analysis resulted in a five-factor scale accounting for 61.6% of the variance versus the original four factors identified by the author of the instrument. Future research and potential use of the instrument are discussed
Charmed hadron physics in quenched anisotropic lattice QCD
We investigate the anisotropic lattice with improved quark action as a
candidate of framework in which we can treat both the heavy and light quark
region in the same manner and systematically reduce the systematic
uncertainties. To examine applicability of anisotropic lattice, we calculate
the charmed meson spectrum and decay constants in quenched approximation. We
find consistent result with most advanced results on isotropic lattices.Comment: 3 pages, 1 figure, contribution to Fifth KEK Topical Conference -
Frontiers in Flavor Physics -, Tsukuba, Japan, November 20-22, 200
Heavy-light meson in anisotropic lattice QCD
We examine whether the improved quark action on anisotropic lattices
can be used as a framework for the heavy quark, which enables precision
computation of matrix elements of heavy-light mesons. To this end, it is
crucial to verify that a mass independent and nonperturbative tuning of the
parameters is possible. As a first step, we observe the dispersion relation of
heavy-light mesons on a quenched lattice using the action which is
nonperturbatively tuned only for the leading terms. On a lattice with the
spatial cutoff 1.6 GeV and the anisotropy , the
relativity relation holds within 2% accuracy in the quark mass region with the bare anisotropy parameter tuned for the massless quark.
We also apply the action to a calculation of heavy-light decay constants in the
charm quark mass region.Comment: Lattice2002(heavyquark), 3 pages, 2 figure
Using Pilot Systems to Execute Many Task Workloads on Supercomputers
High performance computing systems have historically been designed to support
applications comprised of mostly monolithic, single-job workloads. Pilot
systems decouple workload specification, resource selection, and task execution
via job placeholders and late-binding. Pilot systems help to satisfy the
resource requirements of workloads comprised of multiple tasks. RADICAL-Pilot
(RP) is a modular and extensible Python-based pilot system. In this paper we
describe RP's design, architecture and implementation, and characterize its
performance. RP is capable of spawning more than 100 tasks/second and supports
the steady-state execution of up to 16K concurrent tasks. RP can be used
stand-alone, as well as integrated with other application-level tools as a
runtime system
Loss of AP-3 function affects spontaneous and evoked release at hippocampal mossy fiber synapses
Synaptic vesicle (SV) exocytosis mediating neurotransmitter release occurs
spontaneously at low intraterminal calcium concentrations and is stimulated by
a rise in intracellular calcium. Exocytosis is compensated for by the
reformation of vesicles at plasma membrane and endosomes. Although the adaptor
complex AP-3 was proposed to be involved in the formation of SVs from
endosomes, whether its function has an indirect effect on exocytosis remains
unknown. Using mocha mice, which are deficient in functional AP-3, we identify
an AP-3-dependent tetanus neurotoxin-resistant asynchronous release that can be
evoked at hippocampal mossy fiber (MF) synapses. Presynaptic targeting of the
tetanus neurotoxin-resistant vesicle soluble N-ethylmaleimide-sensitive factor
attachment protein receptor (SNARE) tetanus neurotoxin-insensitive
vesicle-associated membrane protein (TI-VAMP) is lost in mocha hippocampal MF
terminals, whereas the localization of synaptobrevin 2 is unaffected. In
addition, quantal release in mocha cultures is more frequent and more sensitive
to sucrose. We conclude that lack of AP-3 results in more constitutive
secretion and loss of an asynchronous evoked release component, suggesting an
important function of AP-3 in regulating SV exocytosis at MF terminals
Thermal fluctuation of magnetization in nanocrystalline FePt thin films with high coercivity
科研費報告書収録論文(課題番号:11305027・基盤研究(A)(2)・H11~H12/研究代表者:中村, 慶久/柔軟なスピンクラスター配列からなる超高密度磁気記録メディアの研究
Pengaruh Model Pembelajaran Problem Solving Dan Problem Posing Terhadap Hasil Belajar Ditinjau Dari Kreativitas Siswa Pada Materi Termokimia Kelas XI SMA Negeri 1 Karanganyar Tahun Pelajaran 2015/216
Penelitian ini bertujuan untuk mengetahui: (1) pengaruh penggunaan model pembelajaran problem solving dan problem posing terhadap hasil belajar siswa; (2) pengaruh kreativitas terhadap hasil belajar siswa; dan (3) interaksi antara penggunaan model pembelajaran problem solving dan problem posing dengan kreativitas terhadap hasil belajar siswa pada materi termokimia di SMA Negeri 1 Karanganyar. Penelitian ini menggunakan metode eksperimen dengan desain faktorial 2x2. Populasi penelitian adalah seluruh siswa kelas XI MIA SMA Negeri 1 Karanganyar tahun pelajaran 2015/2016 sebanyak 9 kelas. Sampel penelitian ditentukan secara acak melalui teknik cluster random sampling dan diambil 2 kelas sebagai sampel. Teknik pengumpulan data menggunakan teknik tes untuk mengukur hasil belajar aspek pengetahuan dan kreativitas siswa dan teknik non tes untuk hasil belajar aspek sikap yang meliputi angket, observasi, jurnal guru dan untuk hasil belajar aspek keterampilan yang meliputi observasi dan penulisan laporan praktikum. Uji hipotesis penelitian menggunakan uji parametrik anava dua jalan untuk hasil belajar aspek pengetahuan dan keterampilan, dan uji non parametrik Kruskal Wallis untuk hasil belajar aspek sikap. Hasil penelitian menunjukkan bahwa: (1) ada pengaruh pembelajaran kimia menggunakan model problem solving dan problem posing terhadap hasil belajar aspek pengetahuan dan keterampilan, namun tidak ada pengaruh terhadap hasil belajar aspek sikap. Siswa yang dibelajarkan menggunakan model pembelajaran problem solving memiliki hasil belajar aspek pengetahuan dan sikap lebih baik dibandingkan siswa yang dibelajarkan dengan model pembelajaran problem posing; (2) ada pengaruh kreativitas tinggi dan rendah terhadap hasil belajar aspek sikap, namun tidak ada pengaruh terhadap hasil belajar aspek dan keterampilan. Siswa dengan kreativitas tinggi memiliki hasil belajar aspek pengetahuan, sikap, dan keterampilan lebih baik dibandingkan siswa dengan kreativitas rendah; (3) tidak ada interaksi antara penggunaan model pembelajaran problem solving dan problem posing dengan kreativitas siswa terhadap hasil belajar aspek pengetahuan, sikap, dan keterampilan
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