Reconstruction: Another Partial View

1952 ◽  
Vol 13 (2) ◽  
pp. 170
Author(s):  
Roscoe Lewis ◽  
Henderson H. Donald
Keyword(s):  
Author(s):  
D. E. Becker

An efficient, robust, and widely-applicable technique is presented for computational synthesis of high-resolution, wide-area images of a specimen from a series of overlapping partial views. This technique can also be used to combine the results of various forms of image analysis, such as segmentation, automated cell counting, deblurring, and neuron tracing, to generate representations that are equivalent to processing the large wide-area image, rather than the individual partial views. This can be a first step towards quantitation of the higher-level tissue architecture. The computational approach overcomes mechanical limitations, such as hysterisis and backlash, of microscope stages. It also automates a procedure that is currently done manually. One application is the high-resolution visualization and/or quantitation of large batches of specimens that are much wider than the field of view of the microscope.The automated montage synthesis begins by computing a concise set of landmark points for each partial view. The type of landmarks used can vary greatly depending on the images of interest. In many cases, image analysis performed on each data set can provide useful landmarks. Even when no such “natural” landmarks are available, image processing can often provide useful landmarks.


2004 ◽  
Vol 82 (6) ◽  
pp. 922-933 ◽  
Author(s):  
D Gallant ◽  
C H Bérubé ◽  
E Tremblay ◽  
L Vasseur

The objective of this study was to examine the foraging behaviour of the beaver (Castor canadensis Kuhl, 1820) and to explain its selection of terrestrial woody plant species according to central place foraging theory. Limitations in variety of food items in most studies with regard to size and (or) distance from the central place and information on availability of forage choices give a partial view of the subject. In this study, the theory is tested in a natural environment with high variability in food items with regard to these factors. Foraging choices by beavers were inspected by measuring variables on cut and uncut trees of every species encountered within 1 m of trail systems made by 25 beaver colonies in Kouchibouguac National Park in New Brunswick, Canada, thereby quantifying the availability of the different food items. The effect of habitat quality (food availability) on the foraging behaviour of beavers was also tested. The results of this study suggest that with increasing distance from the pond, beavers in high-quality habitats selected fewer, but larger, trees and are more species selective. This selectivity was diminished in habitats of lower quality. The results of this study are consistent with the predictions of the central foraging theory.


2008 ◽  
Vol 43 (1) ◽  
pp. 79-110 ◽  
Author(s):  
John Glenn

AbstractRecent writings on globalization have tended to argue that such economic interconnectedness is, in one way or another, geographically delimited. Three competing views appear in the literature, regionalization, triadization and the involutionist perspective. This article challenges the portrayal of these perspectives as competing conceptions and instead argues that each perspective furnishes us with a partial view of a larger process. In so doing, this paper revisits the involutionist perspective, arguing that, in relation to the developing countries’ relative share of world trade and investment shares, the use of the term ‘globalization’ should be questioned. Rather, in relation to trade, involution is a more apt description. However, in terms of FDI, stasis better describes the contemporary international economy. The article then examines the trade and investment patterns within the triad, corroborating earlier findings that each leg of the triad is increasingly trading more with their neighbours than with each other, but that inter-triad FDI is indeed increasing. Three main factors are presented in order to explain the contemporary patterns of trade and investment associated with involution, regionalization and triadization: product differentiation, vertical specialization and the continuing concentration on primary product production in much of the developing world.


2018 ◽  
Author(s):  
António Caleiro

A partial view of the Matthew effect in science asserts that the (already) most recognized scientists are those who (more easily) gain greater recognition for their scientific contributions. A full view of that effect naturally adds to the (comparative) advantages of the most recognized scientists, the (comparative) disadvantages of lesser-recognized scientists. The purpose of this report is to present one of the simplest explanations of the Matthew effect in science, which, as it is also very general, can explain the existence of that effect in other areas where inequality is manifested.


Author(s):  
Sofia Kyratzi ◽  
Nickolas S. Sapidis

In this paper, the authors present a new algorithm for constructing a solid model when the given input is only one partial-view sketch (“natural sketch”). This algorithm is a two-step process, where first a complete (wireframe) sketch is derived, which is then transformed into a 3D polyhedron. The paper details topological and geometric aspects of the process, as well as the essential “user-interaction” components dealing with cases where the sketch-to-solid problem does not have a unique solution.


Water ◽  
2020 ◽  
Vol 12 (7) ◽  
pp. 2050 ◽  
Author(s):  
Andrés Díez-Herrero ◽  
Julio Garrote

Studies looking at flood risk analysis and assessment (FRA) reviews are not customary, and they usually approach to methodological and spatial scale issues, uncertainty, mapping or economic damage topics. However, most of these reviews provide a snapshot of the scientific state of the art of FRA that shows only a partial view, focused on a limited number of selected methods and approaches. In this paper, we apply a bibliometric analysis using the Web of Science (WoS) database to assess the historic evolution and future prospects (emerging fields of application) of FRA. The scientific production of FRA has increased considerably in the past decade. At the beginning, US researchers dominated the field, but now they have been overtaken by the Chinese. The Netherlands and Germany may be highlighted for their more complete analyses and assessments (e.g., including an uncertainty analysis of FRA results), and this can be related to the presence of competitive research groups focused on FRA. Regarding FRA fields of application, resilience analysis shows some growth in recent years while land planning, risk perception and risk warning show a slight decrease in the number of papers published. Global warming appears to dominate part of future FRA production, which affects both fluvial and coastal floods. This, together with the improvement of economic evaluation and psycho-social analysis, appear to be the main trends for the future evolution of FRA. Finally, we cannot ignore the increase in analysis using big data analysis, machine learning techniques, and remote sensing data (particularly in the case of UAV sensors data).


2020 ◽  
pp. 027614672096022
Author(s):  
Marcus Wilcox Hemais ◽  
Rafaela Barbosa Ferreira dos Santos

From a decolonial perspective, the present study analyzes how and why Eurocentric consumerism was adopted by Proteste, a Brazilian consumerist organization that is associated with Euroconsumers, a European consumer defense organization. Marketing literature scarcely discusses decolonial issues related to consumerism, resulting in a limited understanding of how Eurocentric consumerist organizations influence consumerism in the Global South, and in Brazil. Based on interviews with current and former Proteste employees and on secondary data, the analysis shows how Proteste deals with the hierarchy created inside Euroconsumers, positioning it at the lower part of this structure, as well as how it adopts Eurocentric universalist consumerist knowledge, which does not necessarily contribute to solving Proteste’s consumer problems. By ignoring such decolonial issues, marketing perpetuates a partial view of consumerism, which accentuates the asymmetry of power between the Eurocentric world and the rest of the world, rather than foster relations between companies and consumers.


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