把3D带回家

从黑白到彩色,从标清到高清,我们的眼球享受正在一步步升级。当然我们并不满足于此,逼真而震撼的立体画面才是终极目标。随着科技不断发展,电子娱乐产品也全部动员起来,无论从电脑、投影机,还是电视、相机,都步入了3D时代,小编今天搜索出以下3D装备公式为大家做出最完美的搭配。     

Corporate Citizenship and Managerial Motivation: Implications for Business Legitimacy

In 2000, Business and Society Review published a Special Issue of the journal to explore scholars’ ideas about how the practice of corporate citizenship would evolve in the 21st century. Contributors to the volume predicted a change in business motives for engaging in social initiatives, suggesting that managers would begin to see corporate citizenship as a strategic necessity to preserve organizational legitimacy in the face of changing social values. This article uses data from a study of corporate citizenship practices in over 500 Norwegian companies to explore the validity of the Special Issue predictions. We begin by reviewing the foundations of organizational legitimacy theory and examine recent research documenting the growing importance of corporate citizenship for assessments of business legitimacy. We describe our study methods, present our results, and discuss the implications of our findings in this context.     

Lévy‐based Modelling in Brain Imaging

Abstract. A substantive problem in neuroscience is the lack of valid statistical methods for non‐Gaussian random fields. In the present study, we develop a flexible, yet tractable model for a random field based on kernel smoothing of a so‐called Lévy basis. The resulting field may be Gaussian, but there are many other possibilities, including random fields based on Gamma, inverse Gaussian and normal inverse Gaussian (NIG) Lévy bases. It is easy to estimate the parameters of the model and accordingly to assess by simulation the quantiles of test statistics commonly used in neuroscience. We give a concrete example of magnetic resonance imaging scans that are non‐Gaussian. For these data, simulations under the fitted models show that traditional methods based on Gaussian random field theory may leave small, but significant changes in signal level undetected, while these changes are detectable under a non‐Gaussian Lévy model.