A Similarity Heuristic in Children’s Possibility Judgments     

Brandon W. Goulding  Ori Friedman 《Child development》2021,92(2):662-671

Children often judge that strange and improbable events are impossible, but the mechanisms behind their reasoning remain unclear. This article (N = 250) provides evidence that young children use a similarity heuristic that compares potential events to similar known events to determine whether events are possible. Experiment 1 shows that 5- to 6-year-olds who hear about improbable events go on to judge that similar improbable events can happen. Experiment 2 shows that 5- to 6-year-olds more often affirm that improbable events can happen if told about related improbable events than if told about unrelated ones. Finally, Experiment 3 shows that 5- to 6-year-olds affirm the possibility of improbable events related to known events, but deny that related impossible events can happen.  相似文献   

Rosalind Franklin and the Discovery of the Structure of DNA     

Dai  Peng  Williams  Cody Tyler  Witucki  Allison Michelle  Rudge  David Wÿss 《Science & Education》2021,30(3):659-692

Science & Education - Issues associated with nature of science (NOS) have long been recognized as an essential component of scientific literacy. While consensus exists regarding the importance...  相似文献   

Asymptotics and the Role of Minimal Models   总被引：2，自引：0，他引：2  

Batterman  Robert W. 《The British journal for the philosophy of science》2002,53(1):21-38

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The systems view of the world : by Ervin Laszlo. 120 pages,diagrams, 6 × 9 in. New York,George Braziller, 1972. Price, $5.95.     

John W. Sutherland 《Journal of The Franklin Institute》1975,299(4):302-303

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Quantum pharmacology     

W. Graham Richards M.A.  D.Phil.  C.Chem.  F.R.S.C. 《Endeavour》1984,8(4):172-178

Quantum chemistry is based on the solution of the Schrödinger equation for a molecule. From starting data on the positions and nature of constituent atoms information is provided about the energy of the molecule and its electronic properties. The former can indicate what shapes drugs can adopt in binding to pharmacological receptors whilst electronic details, when compared using computer graphics, may highlight the factors responsible for biological activity. These techniques are beginning to show real successes in the design of drug molecules.  相似文献   

图书馆拒公众于门外     

W．WaytGibbs柯江华  杨光 《科学中国》2003,(11):6-7

六月份,匹兹堡大学健康科学图书馆的期刊架上开始出现空位.过去放<白血病研究>(Leukemia Research)的地方,现在立着一块纸板,上面写着:"本刊2003年仅有电子版."  相似文献   

Maris: A knowledge system for internal medicine     

Vladimir Slamecka  Henry N. Camp  Albert N. Badre  W. Dallas Hall 《Information processing & management》1977,13(5):273-276

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Applications of the stability-equation method to linear systems     

Y.T. Tsay  K.W. Han 《Journal of The Franklin Institute》1975,300(4):243-264

This paper presents the applications of the stability-equation method to the analysis and design of linear systems. Control systems with multiple inputs and outputs are considered; the absolute stability and relative stability characteristics are analyzed. Stability conditions for control systems with a transport lag or a distributive lag are presented. Finally, the stability characteristics of a system with a distributive parameter are analyzed.  相似文献   

Pseudo bond graphs of circulating Fluids with application to solar Heating design     

Mont Hubbard  John W. Brewer 《Journal of The Franklin Institute》1981,311(6):339-354

Two different bond-graph schemes for the modeling of circulating fluids are discussed and compared. The first uses a heuristic approach wherein the flow path is broken into segments. Each segment has separate hydraulic and thermal submodels which are linked with active bonds. The model is general enough to handle natural convective flows, heat storage, conduction, forced convective heat transfer and heat energy sources. The second method, applicable to pumped flows, uses a modal analysis approach to derive state equations for the modal temperatures, the time varying coefficients of the spatially varying mode shapes in a separation of variables solution for the temperature partial differential equation. Two examples are worked to illustrate the models. Numerical simulation results are presented using the first method and a simple analytic solution given to illustrate the second.  相似文献   

Block-pulse functions method of the inverse laplace transform for irrational and transcendental transfer functions     

W. Marszałek 《Journal of The Franklin Institute》1984,318(3):193-200

A new direct method of the block-pulse functions technique of the inverse Laplace transform for irrational and transcendental transfer functions is presented. It is shown that the existing indirect method can be used equivalently with the new one. Two illustrative examples are given.  相似文献