نتایج جستجو برای: areal geology

تعداد نتایج: 15595  

Journal: :Current Opinion in Neurobiology 2015
Andre M Bastos Julien Vezoli Pascal Fries

The communication-through-coherence (CTC) hypothesis proposes that anatomical connections are dynamically rendered effective or ineffective through the presence or absence of rhythmic synchronization, in particular in the gamma and beta bands. The original CTC statement proposed that uni-directional communication is due to rhythmic entrainment with an inter-areal delay and a resulting non-zero ...

2005
Jerry H. Ratcliffe

Many of the traditional measures of the degree to which crime patterns change over space and time have limitations. In particular most are unable to determine any change in spatial crime pattern within an areal unit. Usually studies measure the change in crime levels in contiguous areas (expressed as discrete sub-divisions of a study area), but this can become problematic due to difficulties su...

Journal: :Trans. GIS 1999
Richard D. Mrozinski Robert G. Cromley

Traditionally, areal interpolation has referred to techniques for transferring attribute values from one partitioning of space to a different partition of space but this is only one of several situations that create the need for estimating unknown data values for areal units. This paper presents a categorization of four areal interpolation problems that includes the ``missing'' data problem, th...

Journal: :Medical History 1985
J. D. Goodyear

ROY S. PORTER, The earth sciences. An annotated bibliography, New York and London, Garland Publishing, 1983, 8vo, pp. xix, 192, illus., $37.00. This handsome volume offers 808 secondary bibliographical references on the history of the earth sciences. It is the third volume in the series Bibliographies ofthe history ofscience and technology, edited by Robert Multhauf and Ellen Wells. Porter's bi...

Journal: :Medical History 1985
Nicholas Rupke

ROY S. PORTER, The earth sciences. An annotated bibliography, New York and London, Garland Publishing, 1983, 8vo, pp. xix, 192, illus., $37.00. This handsome volume offers 808 secondary bibliographical references on the history of the earth sciences. It is the third volume in the series Bibliographies ofthe history ofscience and technology, edited by Robert Multhauf and Ellen Wells. Porter's bi...

Journal: :IJAGR 2010
James L. Wilson Christopher J. Mansfield

More than a trillion dollars of public money is spent annually on health care in the United States. In order to inform policymakers, health advocacy groups, tax-paying constituents, and beneficiaries, it would be useful to present and analyze health outcome and health-related data at the U.S. congressional district level. Presently, health event data are not reported at this political unit; how...

2011
Constantin Udrişte Ionel Ţevy

The theory of smallest area surfaces evolving with unit areal speed is a particular case of the theory of surfaces of minimum area subject to various constraints. Based on our recent results, such problems can be solved using the two-time maximum principle in a controlled evolution. Section 1 studies a controlled dynamics problem (smallest area surface evolving with unit areal speed) via the tw...

Journal: :Nature communications 2015
Zhen Li Jin Tao Zhang Yu Ming Chen Ju Li Xiong Wen David Lou

Owing to the overwhelming advantage in energy density, lithium-sulfur (Li-S) battery is a promising next-generation electrochemical energy storage system. Despite many efforts in pursuing long cycle life, relatively little emphasis has been placed on increasing the areal energy density. Herein, we have designed and developed a 'pie' structured electrode, which provides an excellent balance betw...

2012
Kim Lowell Alex Held Tony Milne Anthea Mitchell Ian Tapley Peter Caccetta Eric Lehmann Zheng-shu Zhou

Areal sample units are explored as an alternative to conventional point-based samples for map accuracy assessment. Three analyses are examined: confidence limits on estimates of the total amount of each landcover, regression of map data versus reference data, and a two-part confusion matrix approach. It is concluded that areal sample units provide some advantages compared to point-based samples...

2010
C.-Y. Zhao

2) Section 1, line 84: “in the study the relationship of the temporal and spatial variation of soil moisture is determined by establishing its controlling factors . . .” The sentence is revised as “in this study the relationship between variation of soil moisture and its controlling factors (e.g. topography and precipitation) is established.” That mean the modified wetness index. Line 110: “. ....

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