8,093 research outputs found
FDI and Technology Spillovers in China
Using a database of Chinese firms, we examine the effects of technology spillovers not only between foreign entrants and local firms but also between "modernized" local firms to other local firms. Our results show that the increased presence of foreign multinationals within industries and in their upstream sectors positively affected the productivity of local firms. The positive intra-industry spillover effect from wholly owned subsidiaries becomes evident when the Chinese government's restriction on foreign ownership was lifted. We also find strong spillover effects among local firms.foreign direct investment, spillover effects, China
Decision-aid or Controller? Steering Human Decision Makers with Algorithms
Algorithms are used to aid human decision makers by making predictions and
recommending decisions. Currently, these algorithms are trained to optimize
prediction accuracy. What if they were optimized to control final decisions? In
this paper, we study a decision-aid algorithm that learns about the human
decision maker and provides ''personalized recommendations'' to influence final
decisions. We first consider fixed human decision functions which map
observable features and the algorithm's recommendations to final decisions. We
characterize the conditions under which perfect control over final decisions is
attainable. Under fairly general assumptions, the parameters of the human
decision function can be identified from past interactions between the
algorithm and the human decision maker, even when the algorithm was constrained
to make truthful recommendations. We then consider a decision maker who is
aware of the algorithm's manipulation and responds strategically. By posing the
setting as a variation of the cheap talk game [Crawford and Sobel, 1982], we
show that all equilibria are partition equilibria where only coarse information
is shared: the algorithm recommends an interval containing the ideal decision.
We discuss the potential applications of such algorithms and their social
implications
Inversion of circular means and the wave equation on convex planar domains
We study the problem of recovering the initial data of the two dimensional
wave equation from values of its solution on the boundary \partial \Om of a
smooth convex bounded domain \Om \subset \R^2. As a main result we establish
back-projection type inversion formulas that recover any initial data with
support in \Om modulo an explicitly computed smoothing integral operator
\K_\Om. For circular and elliptical domains the operator \K_\Om is shown to
vanish identically and hence we establish exact inversion formulas of the
back-projection type in these cases. Similar results are obtained for
recovering a function from its mean values over circles with centers on
\partial \Om. Both reconstruction problems are, amongst others, essential for
the hybrid imaging modalities photoacoustic and thermoacoustic tomography.Comment: [14 pages, 2 figures
Simulation for field emission images of micrometer-long SWCNTs
The electron distribution of open-ended single-walled carbon nanotubes with
chirality indexes (7,0) and (5,5) in the field emission conditions was
calculated via a multi-scaled algorithm. The field emission images were
produced numerically. It was found that the emission patterns change with the
applied macroscopic field. Especially, the symmetry of the emission pattern of
the (7,0) carbon nanotube is breaking in the lower field but the breaking is
less obvious in the higher field. The enlargement factor increases with the
applied macroscopic field.Comment: 8 pages, 4 figure
Drosophila OBP LUSH Is Required for Activity of Pheromone-Sensitive Neurons
AbstractOdorant binding proteins (OBPs) are extracellular proteins localized to the chemosensory systems of most terrestrial species. OBPs are expressed by nonneuronal cells and secreted into the fluid bathing olfactory neuron dendrites. Several members have been shown to interact directly with odorants, but the significance of this is not clear. We show that the Drosophila OBP lush is completely devoid of evoked activity to the pheromone 11-cis vaccenyl acetate (VA), revealing that this binding protein is absolutely required for activation of pheromone-sensitive chemosensory neurons. lush mutants are also defective for pheromone-evoked behavior. Importantly, we identify a genetic interaction between lush and spontaneous activity in VA-sensitive neurons in the absence of pheromone. The defects in spontaneous activity and VA sensitivity are reversed by germline transformation with a lush transgene or by introducing recombinant LUSH protein into mutant sensilla. These studies directly link pheromone-induced behavior with OBP-dependent activation of a subset of olfactory neurons
INFO3333 GROUP ASSIGNMENT Group 61 (Prac 13 Tue 3pm CC)
This literature review will analyse, examine, and confirm all the information included in the literature from 2013 to 2021 is recent, relevant, and correct. Our project, classroom AR integration, aims to allow remote students to join the class through VR imaging and to project the remote students into the classroom as in-campus students through AR. The main objective is to enable two modes (online and on-campus) of teaching to work generally as conventional, allowing diverse and flexible learning styles
The Effect of Winning an Oscar Award on Survival: Correcting for Healthy Performer Survivor Bias With a Rank Preserving Structural Accelerated Failure Time Model
We study the causal effect of winning an Oscar Award on an actor or actress’s survival. Does the increase in social rank from a performer winning an Oscar increase the performer’s life expectancy? Previous studies of this issue have suffered from healthy performer survivor bias, that is, candidates who are healthier will be able to act in more films and have more chance to win Oscar Awards. To correct this bias, we adapt Robins’ rank preserving structural accelerated failure time model and g-estimation method. We show in simulation studies that this approach corrects the bias contained in previous studies. We estimate that the effect of winning an Oscar Award on survival is 4.2 years, with a 95% confidence interval of [−0.4, 8.4] years. There is not strong evidence that winning an Oscar increases life expectancy
Analysis of cybersecurity threats in Industry 4.0: the case of intrusion detection
Nowadays, industrial control systems are experiencing a new revolution with the interconnection of the operational equipment with the Internet, and the introduction of cutting-edge technologies such as Cloud Computing or Big data within the organization. These and other technologies are paving the way to the Industry 4.0. However, the advent of these technologies, and the innovative services that are enabled by them, will also bring novel threats whose impact needs to be understood. As a result, this paper provides an analysis of the evolution of these cyber-security issues and the requirements that must be satis ed by intrusion detection defense mechanisms in this context.Springer ; Universidad de Málaga. Campus de Excelencia Internacional AndalucÃa Tech
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