نتایج جستجو برای: past

تعداد نتایج: 238297  

2005
STEPHEN MORRIS HYUN SONG SHIN

Macroeconomic variables exhibit inertia. On the face of it, such inertia sits uncomfortably with the behavior of rational, forward-looking agents who form expectations on the basis of the best information available at the time. Christopher Sims (2003, sect. 8) offers a three-fold taxonomy of attempts to rationalize inertia. The first is the idea of Robert Lucas (1973) and Edmund Phelps (1970) t...

2004
G. A. KNOX

Contributors to this symposium have outlined the present status of our scientific knowledge of what is one of the most fascinating regions on this globe, the Subantarctic Islands of New Zealand. No completely satisfactory definition of this region exists. It may be defined as those islands which lie within the Subantarctic zone of surface waters, bounded to the north by the Subtropical Converge...

2012
E. Colineau R. Eloirdi J.-C. Griveau P. Gaczyński F. Wilhelm A. Rogalev J.-P. Sanchez M. L. Winterrose N. Magnani A. B. Shick R. Caciuffo

I. Halevy,1,2,3 A. Hen,2,4 I. Orion,2 E. Colineau,4 R. Eloirdi,4 J.-C. Griveau,4 P. Gaczyński,4 F. Wilhelm,5 A. Rogalev,5 J.-P. Sanchez,6 M. L. Winterrose,3 N. Magnani,7 A. B. Shick,4,8 and R. Caciuffo4 1Physics Department, Nuclear Research Center Negev, P.O. Box 9001, IL84190 Beer-Sheva, Israel 2Nuclear Engineering Department, Ben Gurion University, IL84105 Beer-Sheva, Israel 3California Insti...

2013
Ashish Gupta Arun Kumar

Integration of optics with genetics to control any events within particular cells of living tissue is known as optogenetics. Term ‘Optogenetics’ was introduced in early 1970’s. It is the marriage between optics and genetics to control specific cells of living tissue. This paper introduces the field of optogenetics and its emergence from biophotonics and summarizes the role of optics in the fiel...

Journal: :Library Trends 2010
Lori Widzinski

Introduction There are many issues impacting the history of media collections in academic libraries. Facets of this history are intertwined with the profession of media librarianship and the fields adjacent to it such as instructional technology and audiovisual production. Additionally, popular culture and the demand from library users impact our collection development decisions. Topics such as...

2005
Louis H. Kauffman

In searching for methods to distinguish knots and links, recent work has focussed on the more general virtual knots and links, introduced by Kauffman in [2]. If we ignore the over/under information at each crossing, we obtain a flat virtual knot or link (still called a knot or a link), sometimes called the universe of the original virtual knot or link. It is a triviality that if the original vi...

2014
Richa Thapliyal

Here H(X) measures the average uncertainty associated with the random variable X. If X is the lifetime of a system and if the system has survived up to time t, then to measure the uncertainty about the remaining lifetime of such a system the measure (1) is not appropriate. Ebrahimi (1996) proposed a measure which measures the uncertainty about the remaining lifetime of a system if it is working...

2009
Zhizhong Jiang Stephan Henneberg Peter Naudé

Past years have seen a plethora of studies on the construct of trust in business relationships. Despite the significance of trust in developing relationships, research on trust still has two main deficiencies. First, previous studies attempted to stretch the concept of trust from interpersonal towards interorganizational relationships which resulted in a cross-level fallacy, as the emotional ch...

2000
D. L. Eggleston C. F. Driscoll B. R. Beck A. W. Hyatt J. H. Malmberg

A technique is presented for measuring the parallel energy distribution of magnetically confined electrons in a cylindrically symmetric pure electron plasma. In essence, the technique measures how many electrons are energetic enough to escape past applied confinement potentials. The technique does not require any secondary magnetic fields. Simplified variations of the technique are also present...

2000
Michael Harvey Radford M. Neal

Inference for belief networks using Gibbs sampling produces a distribution for unob­ served variables that differs from the correct distribution by a (usually) unknown error, since convergence to the right distribution occurs only asymptotically. The method of "coupling from the past" samples from ex­ actly the correct distribution by ( conceptu­ ally) running dependent Gibbs sampling sim­ ulat...

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