13,719 research outputs found
Problem-solving dissension and international entry mode performance
Purpose: The purpose of this paper is to examine international decision making, information
processing, and related performance implications. The authors aim to explore the relationship between
international decision making and problem-solving dissensions related to entry mode decisions. In
addition, they aim to investigate the effects of dissension on entry mode performance, and the
moderating effect of the foreign direct investment (FDI) vs non-FDI decision as it relates to dissension-
mode performance. Despite their significance from an information processing perspective, these issues
have not been sufficiently explored in international entry mode research.
Design/methodology/approach: This research presents data collected from 233 privately owned
internationalized Chinese firms. The analysis in this investigation includes hierarchical ordinary least
squares regression.
Findings: The findings suggest an inverse U-shaped relationship between dissension and entry
mode performance, as opposed to a linear one, and a moderating effect of FDI vs non-FDI decisions on
this curvilinear dissension-performance association. These findings support and refine the rationale of
the information processing perspective.
Originality/value: These findings add realistic elements to the alleged
“
rational
”
international
decision-making doctrine assumed in previous entry mode literature. The findings show the
importance of the heterogeneity of information processing in entry mode strategic decision-making
processes (SDMPs), and its effects on specific decision types. The authors believe that this is the first
empirical study to use an information processing perspective to examine the effects of SDMPs on entry
mode performance
Parametric survey of longitudinal prominence oscillation simulations
It is found that both microflare-sized impulsive heating at one leg of the
loop and a suddenly imposed velocity perturbation can propel the prominence to
oscillate along the magnetic dip. An extensive parameter survey results in a
scaling law, showing that the period of the oscillation, which weakly depends
on the length and height of the prominence, and the amplitude of the
perturbations, scales with , where represents the
curvature radius of the dip, and is the gravitational acceleration of
the Sun. This is consistent with the linear theory of a pendulum, which implies
that the field-aligned component of gravity is the main restoring force for the
prominence longitudinal oscillations, as confirmed by the force analysis.
However, the gas pressure gradient becomes non-negligible for short
prominences. The oscillation damps with time in the presence of non-adiabatic
processes. Compared to heat conduction, the radiative cooling is the dominant
factor leading to the damping. A scaling law for the damping timescale is
derived, i.e., , showing
strong dependence on the prominence length , the geometry of the magnetic
dip (characterized by the depth and the width ), and the velocity
perturbation amplitude . The larger the amplitude, the faster the
oscillation damps. It is also found that mass drainage significantly reduces
the damping timescale when the perturbation is too strong.Comment: 17 PAGES, 8FIGURE
Radiative and flavor-violating transitions of leptons from interactions with color-octet particles
It has been recently proposed that neutrino mass could originate from Yukawa
interactions of leptons with new colored particles. This raises the interesting
possibility of testing mass generation through copious production of those
particles at hadron colliders. A realistic assessment of it however should take
into account how large those interactions could be from available precision
results. In this work we make a systematic analysis to the flavor structure in
Yukawa couplings, provide a convenient parametrization to it, and investigate
the rare radiative and pure leptonic decays of the muon and tau leptons. For
general values of parameters the muon decays set stringent constraints on the
couplings, and all rare tau decays are far below the current experimental
sensitivity. However, there is room in parameter space in which the muon decays
could be significantly suppressed by destructive interference between colored
particles without generically reducing the couplings themselves. This is also
the region of parameters that is relevant to collider physics. We show that for
this part of parameter space some tau decays can reach or are close to the
current level of precision.Comment: 20 pages, 7 figure
Gapped Surface States in a Strong-Topological-Semimetal
A three-dimensional strong-topological-insulator or -semimetal hosts
topological surface states which are often said to be gapless so long as
time-reversal symmetry is preserved. This narrative can be mistaken when
surface state degeneracies occur away from time-reversal-invariant momenta. The
mirror-invariance of the system then becomes essential in protecting the
existence of a surface Fermi surface. Here we show that such a case exists in
the strong-topological-semimetal BiSe. Angle-resolved photoemission
spectroscopy and \textit{ab initio} calculations reveal partial gapping of
surface bands on the BiSe-termination of BiSe(111), where an 85
meV gap along closes to zero toward the mirror-invariant
azimuth. The gap opening is attributed to an interband
spin-orbit interaction that mixes states of opposite spin-helicity.Comment: 5 pages, 3 figure
Efficiency assessment of green technology innovation of renewable energy enterprises in China: a dynamic data envelopment analysis considering undesirable output
The rapid development of renewable energy enterprises has produced important benefits for contemporary efforts to address serious environmental pollution and depletion of fossil energy resources. However, the environmental pollution that exists in the production and operation of enterprises has been ignored, and so an objective evaluation of this issue is becoming urgent. This paper established an evaluation index system for green technology innovation efficiency and used dynamic data envelopment analysis (DEA) considering undesirable output to measure the green technology innovation efficiency of renewable energy enterprises, and the improvement potential of ineffective enterprises was put forward. The results show that: (1) the green technology innovation of renewable energy enterprises needs to be greatly improved. The average efficiency score of sample was 0.385 over four years, and only 16 enterprises were found to operate effectively; (2) when effective and inefficient DMUs were compared, the latter were found to have significant output shortfalls, especially in environmental tax, and were found to show an improvement potential of 55.71 percent; (3) the efficiency analysis of different types of renewable energy enterprises found that the green technology innovation efficiency score of nuclear energy enterprises was the highest, and rapidly rose; (4) the green technology innovation efficiency of renewable energy enterprises in the western region greatly exceeded the efficiency of the eastern and central regions. The efficiency evaluation results could not only provide a guidance for central and local governances to optimize the structure of renewable energy sector, but also potentially provide a reference for the operation and management of renewable energy enterprises in China
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Adaptive elimination of synchronization in coupled oscillator
We present here an adaptive control scheme with a feedback delay to achieve elimination of synchronization in a large population of coupled and synchronized oscillators. We validate the feasibility of this scheme not only in the coupled Kuramoto's oscillators with a unimodal or bimodal distribution of natural frequency, but also in two representative models of neuronal networks, namely, the FitzHugh-Nagumo spiking oscillators and the Hindmarsh-Rose bursting oscillators. More significantly, we analytically illustrate the feasibility of the proposed scheme with a feedback delay and reveal how the exact topological form of the bimodal natural frequency distribution influences the scheme performance. We anticipate that our developed scheme will deepen the understanding and refinement of those controllers, e.g. techniques of deep brain stimulation, which have been implemented in remedying some synchronization-induced mental disorders including Parkinson disease and epilepsy
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