3,665 research outputs found
Consumer leisure behavior change based on the new weekend policy in Taiwan, R.O.C.
Includes bibliographical references
Phase slip in a superfluid Fermi gas near a Feshbach resonance
In this paper, we study the properties of a phase slip in a superfluid Fermi
gas near a Feshbach resonance. The phase slip can be generated by the phase
imprinting method. Below the superfluid transition temperature, it appears as a
dip in the density profile, and becomes more pronounced when the temperature is
lowered. Therefore the phase slip can provide a direct evidence of the
superfluid state. The condensation energy of the superfluid state can be
extracted from the density profile of the phase slip, due to the unitary
properties of the Fermi gas near the resonance. The width of the phase slip is
proportional to the square root of the difference between the transition
temperature and the temperature. The signature of the phase slip in the density
profile becomes more robust across the BCS-BEC crossover.Comment: 5 pages, 2 figures, the density profile of a phase slip under
experimental conditions was calculate
Genome-wide analysis of overlapping genes regulated by iron deficiency and phosphate starvation reveals new interactions in Arabidopsis roots
Additional file 8. Co-expression relationships of the 97 differentially expressed overlapping genes induced by Pi starvation but repressed by Fe deficiency
How Chinese State-Owned Enterprises Change Their Dynamics in New Product Innovation?
The innovation of state-owned enterprises and its adaptation to the market competition have been in the spotlight of studies. According to the panel data form Statistics on Science and Technology-Oriented Activities of Industry Enterprises, this research measures and contrasts the new product innovation investment and performance of Chinese State-Owned Enterprises (SOEs) and non-SOEs. It reveals that market competition is a positive effect on new product innovation input and output of state-owned enterprises, as non-SOE, the relationship between competition intensity and new product innovation output of state-owned enterprises appears exponential relationship. Furthermore, it discovers that non-SOE is more sensitive to competition intensity than SOE. Under the different competitive environment, both of them play differents role on promoting development of innovation and stabilising the market
Paleomagnetism and Rock Magnetism of Upper Jurassic Limestone and Basalt from Site 367
Remanent magnetization measurements were made on 49 samples of upper Jurassic limestone varying in color from gray to red and 7 samples of basalt recovered at Site 367. The gray limestones have very weak magnetizations and are of limited use paleomagnetically. The red limestones have stronger remanences and fair to good magnetic stabilities. The mean remanent inclination of the most reliable set of red limestone samples (N=l4) after 200-oe AF demagnetization is 25°±5.1°, near the present axial dipole field inclination (24°) as well as the expected inclination of the Jurassic field (21° to 30°) at the core site. A single stable reversed direction of magnetization (Sample 33-3, 88 cm) may represent the earliest interval of reversed geomagnetic field polarity of the late Jurassic-early Cretaceous magnetic reversal sequence. The basalt samples had very unstable remanent magnetic properties, characterized by median demagnetizing fields less than 100 oe. The samples were able to acquire large viscous remanences (VRM) in the laboratory in a 1.0-oe field. Moreover, the intensity of VRM acquired in the presence of the NRM was at least a factor of five greater than that acquired under similar conditions but after AF demagnetization. The measured magnetic properties of these basalt samples suggest that the magnetic quiet zone in the general region of Site 367 may be due in part to reduction of magnetization contrast in the magnetized basement layer by viscous remagnetization
THE EFFECTS OF REFLECTIVE TEACHING ON AN INTENSIVE TEACHER TRAINING PROGRAM
Abstract: The preliminary case study was conducted to understand the effects of reflective teaching approach on English teachers' teaching performances in a short-term intensive teacher training program, and to know the participating English teachers’ feedback to the program. Totally 13 English teachers, who had taught English for 1 to 5 years, participated in this program for 3 weeks with 54 instruction hours. During the intensive program, teachers were asked to design lesson plans and demonstrate their lessons, while their peers, other experienced teachers, provided them with constructive feedback. In addition, the presenters self-assessed and reflected on their own teaching. Through several cycles of teaching demonstrations, peer-assessments, self-assessments and reflections, most teachers indicated that the reflective teaching approach was beneficial for sharpening their teaching skills, equipping them with additional teaching strategies and class management skills, and raising their awareness of the needs for examinations of their teaching reflectively in the future, and the importance of reflection of their own teaching for improvements. To give the teachers more inputs and inspirations, experienced teachers with creative teaching ideas were invited as guest speakers, and positive feedback to the guest speeches was also drawn. The findings of this study were expected to provide some pedagogical inspirations for the related fields, especially English teacher training in EFL contexts
Two-dimensional ferromagnetic semiconductor Cr2XP: First-principles calculations and Monte Carlo simulations
According to the Mermin Wagner theorem, two-dimensional material is difficult
to have the Curie temperature above room temperature. By using the method of
band engineering, we design a promising two-dimensional ferromagnetic
semiconductor Cr2XP (X=P, As, Sb) with large magnetization, high Curie
temperature and sizable band gap. The formation of gap is discussed in terms of
the hybridizations, occupation and distribution of electronic states and charge
transfer. Large magnetic moments about 6.16~6.37uB origin from the occupation
of Cr-d electrons in crystal field.Competition and cooperation between d-d
(Cr-d~Cr-d) and d-p-d (Cr-d~X-p~Cr-d) exchange interactions lead to the
emergence of ferromagnetic ordering phase. Furthermore, Curie temperatures,
approaching to 269 K, 332 K and 400 K for Cr2P2, Cr2AsP and Cr2SbP, are
estimated by employing Monte Carlo simulation based on the Heisenberg model.
Magnetic anisotropy energy of Cr2XP is determined by calculating the total
energy dependence on the angle along different directions, and the origin is
also discussed by the second-order perturbation theory. In addition, the Cr2XP
possesses excellent thermodynamical, dynamical and mechanical stabilities, and
can overcome their own gravity to keep their planar structure without the
support of substrate. These above-mentioned advantages will offer some valuable
hints for two-dimensional ferromagnetic semiconductor Cr2XP in spintronic
devices
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