1,265 research outputs found
The Promoting Effects of Psychology in Business Negotiation
with the prosperity of the world economy, each country gradually converts its priority of the development to the economic growth. Economic activities such as import and export are more frequent than before. In this process, business negotiation is indispensable. On the study of business negotiation, scholars at home and abroad have put relentless efforts and have made tremendous contributions to the success of business transactions. However, in practical business negotiations, although negotiators have mastered a certain level of knowledge of business negotiation, they still encounter some problems. These problems, to some extent, can be solved by the employment of psychological knowledge. In this paper, psychological theories such as Attribution Theory, Intergroup Conflict Theory, Maslow’s Hierarchy of Needs, and Foot-in-the-Door Technique are applied and analyzed to help negotiators achieve the most important goal in business negotiations
Extreme Spontaneous Deformations of Active Crystals
We demonstrate that two-dimensional crystals made of active particles can
experience extremely large spontaneous deformations without melting. Using
particles mostly interacting via pairwise repulsive forces, we show that such
active crystals maintain long-range bond order and algebraically-decaying
positional order, but with an exponent not limited by the
bound given by the (equilibrium) KTHNY theory. We rationalize our findings
using linear elastic theory and show the existence of two well-defined
effective temperatures quantifying respectively large-scale deformations and
bond-order fluctuations. The root of these phenomena lies in the sole
time-persistence of the intrinsic axes of particles, and they should thus be
observed in many different situations.Comment: 6 pages, 4 figure
Clinical evaluation on the coaxial microincision cataract surgery in hard nuclear cataracts
AIM: To assess and compare the results of 2.2mm microincision coaxial cataract surgery(MCCS)phacoemulsification with the conventional 3.0mm MCCS in hard nuclear cataracts. METHODS: Totally 132 eyes with hard cataract(Ⅳ level and above)were randomized to two groups: 2.2mm MCCS(group 1:60 eyes)and 3.0mm MCCS(group 2:72 eyes). All patients underwent standard phacoemulsification and intraocular lens implantation surgery by one experienced surgeon. The average ultrasound power(AVE)was recorded during the operation. The incidences of capsule rupture and postoperative corneal edema were compared.Visual acuity, surgically induced astigmatism(SIA)and the descent rate of endothelial cell density were compared at intervals of 1 day, 1 month and 3 months after surgery. Statistic analysis was taken by Student's t test and Chi square test. RESULTS: There was no significant difference on the incidences of capsule rupture, postoperative corneal edema and AVE(P> 0.05)between the two groups(3.3%, 10.0%, 65.09±20.15)and(4.2%, 11.1%, 69.13±15.44). One day after the surgery, the 2.2mm MCCS group showed better uncorrected visual acuity as compared to the 3.0mm MCCS group(P < 0.05). There were no significant differences on best-corrected visual acuity on 1 month and 3 months after the surgery. There was no significant difference on the descent rate of endothelial cell density(16.54%±10.20%, 17.69%±10.65%)3 months after the surgery. One day, 1 month and 3 months after the surgery, SIA was 0.77±0.31,0.66±0.29, 0.52±0.25D in the 2.2mm MCCS group, and 1.41±0.73,0.98±0.61D,0.82±0.35D in the 3.0mm MCCS group, respectively. The differences were statistically significant. CONCLUSION: The operative safety of the 2.2mm MCCS group were the same as 3.0mm MCCS group with the hard nuclear cataracts. The 2.2mm MCCS phacoemulsification could significantly reduce SIA and get better earlier visual rehabilitation
Bis(μ-2-hydroxyÂbenozato)-κ3 O,O′:O′;κ3 O:O,O′-bisÂ[(2-hydroxyÂbenozato-κ2 O,O′)(1,10-phenanthroline-κ2 N,N′)cadmium(II)]
The dinuclear title compound, [Cd2(C7H5O3)4(C12H8N2)2], is located on a crystallographic rotation twofold axis. The two CdII ions are connected by two tridentate bridging 2-hydroxyÂbenzoate anions. Each CdII ion is seven-coordinated by five O atoms from three 2-hydroxyÂbenzoate ligands and two N atoms from 1,10-phenanthroline. The 2-hydroxyÂbenzoate molÂecules adopt two kinds of coordination mode, bidentate chelating and tridentate bridging–chelating. IntraÂmolecular hydrogen bonds between hydrÂoxy and carboxylÂate groups from 2-hydroxyÂbenzoate groups and π–π stacking interactions between parallel 1,10-phenanthroline ligands [centroid–centroid distances = 3.707 (3) and 3.842 (3) Å] are observed. Furthermore, adjacent benzene rings from 2-hydroxyÂbenzoate ligands are involved in π–π interÂactions with interÂplanar distances of 3.642 (3) Å, thereby forming a chain along the a axis direction
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Nonlinear mixed-effects scalar-on-function models and variable selection
Abstract: This paper is motivated by our collaborative research and the aim is to model clinical assessments of upper limb function after stroke using 3D-position and 4D-orientation movement data. We present a new nonlinear mixed-effects scalar-on-function regression model with a Gaussian process prior focusing on the variable selection from a large number of candidates including both scalar and function variables. A novel variable selection algorithm has been developed, namely functional least angle regression. As it is essential for this algorithm, we studied the representation of functional variables with different methods and the correlation between a scalar and a group of mixed scalar and functional variables. We also propose a new stopping rule for practical use. This algorithm is efficient and accurate for both variable selection and parameter estimation even when the number of functional variables is very large and the variables are correlated. And thus the prediction provided by the algorithm is accurate. Our comprehensive simulation study showed that the method is superior to other existing variable selection methods. When the algorithm was applied to the analysis of the movement data, the use of the nonlinear random-effect model and the function variables significantly improved the prediction accuracy for the clinical assessment
Numerical simulation of material flow during FSW to predict defect generation based on non-uniform tool–material contact condition
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