نتایج جستجو برای: eric
تعداد نتایج: 7606 فیلتر نتایج به سال:
The complexity of gene regulation and its importance to evolutionary change is now a foundational principle in both development and evolution. But this was not the case in the 1960s when Eric Davidson was one of a small group of scientists who began developing a theoretical framework backed by rigorous experimental work to explore this issue. Davidson and his group made fundamental contribution...
Eric Wieschaus [4] studied how genes [5] cause fruit fly larvae to develop in the US and Europe during the twentieth and twenty-first centuries. Using the fruit fly Drosophila melanogaster [6], Wieschaus and colleague Christiane Nüsslein-Volhard [7] described genes [5] and gene products that help form the fruit fly body plan and establish the larval segments during embryogenesis [8]. This work ...
In the 1960s, Joseph D. Novak (1993) at Cornell University began to study the concept mapping technique. His work was based on the theories of David Ausubel (1968), who stressed the importance of prior knowledge in being able to learn about new concepts. Novak concluded that "Meaningful learning involves the assimilation of new concepts and propositions into existing cognitive structures." A co...
I design and build secure and reliable networked systems using a cross-layer approach that draws from networking, operating systems, distributed systems, and computer architecture. My focus is on virtualization and the movement toward cloud-based services. Rather than simply patching existing systems, I question the underlying assumptions to create new designs that are fundamentally more secure...
Some of the authors of this publication are also working on these related projects: IFOP-SUBPESCA 1049/50-LE16: Stomach contents of Micromesistius australis and ratfishes (Coelorhynchus sp) during 2016 View project Eric T Schultz University of Connecticut 91 PUBLICATIONS 2,803 CITATIONS SEE PROFILE Stephen D. McCormick USGS, Conte Anadromous Fish Research Center 173 PUBLICATIONS 9,836 CITATIONS...
This paper argues that a change in the fed funds target begins to affect the economy as soon as it becomes anticipated by markets, with innovations in mortgage rates driven in part by innovations in the level and slope of the term structure of expected near-horizon fed funds rates. Despite this instantaneous anticipatory response of mortgage rates, the consequences for housing of a change in mo...
Estimation of the ratio of two totals is considered, when a probability sample from the finite population is available. Four estimators of the ratio are examined. The first one – called “simple” – is the ratio of the Horvitz–Thompson estimators of totals; the second – the ratio of two ratio estimators of totals; the third one – the ratio of two regression estimators of totals. The fourth one is...
This article traces one man’s journey through the various different forms of electronics and how they were developed and used at IBM. It also illuminates some of the reasons why particular decisions about various technologies were taken and the longer term results of those actions. It started as a personal memoir that was intended, by the former editor of our Biographies department (Eric Weiss)...
The Babylonian bridal auction, described by Herodotus, is regarded as one of the earliest uses of an auction in history. Yet, to our knowledge, the literature lacks a formal equilibrium analysis of this auction. We provide such an analysis for the twoplayer case with complete and incompete information, and in so doing identify what we call the “Herodotus Paradox.” ∗Correspondent: Michael R. Bay...
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