scholarly journals Exploring State Factor Landscapes

2020 ◽  
Author(s):  
K. Dana Chadwick
Keyword(s):  
1998 ◽  
Vol 79 (02) ◽  
pp. 328-330 ◽  
Author(s):  
D. Wright ◽  
J. M. Thomson ◽  
A. Sidebotham ◽  
C. F. Hirst ◽  
P. Hirsch ◽  
...  

SummaryA longitudinal study of 21 pregnant women has been undertaken using a variety of factor VII assays, including factor VIIa, to investigate the increase of factor VIIc. All assays demonstrated significant rises (p <0.001), most marked for factor VIIa (82%) and factor VIIc rabbit (81%). Smaller rises were seen for factor VIIc bovine (50%) and VII antigen (40%). Three indirect measures of activity state, factor VIIc rabbit:antigen, bovine:antigen and bovine:rabbit, provided conflicting data. Factor VIIa:antigen showed a significant increase of 36% (p <0.001). Within individual pregnancies the change in factor VIIc rabbit and antigen correlated with maternal weight gain (p <0.05). Two activity state measures, bovine:rabbit and bovine:antigen, showed negative correlation with birthweight. The increases in both zymogen and in activity state appear to contribute to the factor VIIc rise. The extent of this rise appears to be influenced by maternal weight gain. Increased factor VII activation is associated with reduced foetal growth.


2015 ◽  
Vol 59 (2) ◽  
pp. 63-83
Author(s):  
Dariusz Wojakowski

The article contains an analysis of the academic and popular political discourses concerning the Ukrainian nation. Its aim is to point out atypical phenomena which could constitute little-known factors destabilizing or integrating national self-representation in Ukraine. The inconsistency of these concepts occurs above all at the level of macro-social discourses. What is involved is the presence in politics of content associated with the radical right and its primordial understanding of the nation, accompanied by low support for any sort of national or civil idea among the inhabitants of Ukraine. In the academic discourse the dominant western European theories of nation clash with a specific understanding of the terminology used in Russian scholarship. On the other hand, in local discourses at the meso-social level, there are phenomena that could be integrating factors for the image of the Ukrainian nation. There, language, popular culture, and various ideas about the past intermingle. In southern Ukraine, concepts can be found in which the nation is a political category quite aside from ethnic differences or the language of communication. Soviet times introduced the state factor, which is independent of ethnicity and which was later given content (rather worse than better) by the Ukrainian state. In these cases, Ukrainianness appears as a superior principle in regards to ethnic differentiation. The political situation of Ukraine since 2014, however, does not favor the development of this model of the Ukrainian nation.


Author(s):  
Alberto Carlucci ◽  
Mariona Pahisa ◽  
Kelvin Moneypenny

<p>The design of cable supported bridges of short to medium spans requires the resolution of how to separate the load and effect of the major components of permanent loading: Gravity and Prestressing. <p>The Eurocode allows to use the same Ultimate Limit State factor for the Gravity “G” and the Prestressing “P” for flexible bridges and prescribes to use different factors for stiff bridges. <p>However, there is no clear definition in the Eurocode of when a bridge can be considered flexible. The paper introduces the concept of the Stay Force Response Index (SFRI) to define the degree of flexibility of the bridge and describes a method for the definition of the prestressing partial factor derived through a parametric analysis of concrete cable supported bridge. <p>This method, which is generally applicable beyond the Eurocode, would allow the designer to have the confidence in undertaking optimized hence, more economic and more sustainable designs.


2021 ◽  
Vol 1 (7) ◽  
pp. 5-15
Author(s):  
V.L. Lazarev ◽  

The paper describes the approach and methodology for the numerical assessment of the quality of periodic processes. With regard to their particular case the processes of selfoscillations, on the basis of the proposed approach, the problem of optimization of the control system is formulated and possible ways of solving it are shown. The practical implementation of the approach is possible when synthesizing a control system, as well as in the variant of automatic adaptive control during its operation. The proposed solutions are based on the use of methods of the theory of entropy potentials. The implementation of the proposed solutions will improve the quality of monitoring of periodic processes and the efficiency of regulation systems in selfoscillation modes.


Author(s):  
Vance T. Holliday

To fully appreciate and apply pedologic principals in archaeology, some of the theoretical underpinnings of pedology and especially soil geomorphology must be outlined. Pedologists and soil geomorphologists have attempted to describe, if not model, the processes of soil formation, the factors that drive the processes, and the evolution of soils as landscapes evolve (summarized by Smeck et al., 1983; Johnson and Watson-Stegner, 1987; and Gerrard, 1992, pp. 1–50, 217–220). The task is a difficult one, however, because of the complex and variable sets of processes responsible for soil development. Several of the resulting approaches have proven useful for conceptualizing pedogenesis and, more important, for interpreting soils. In addition to understanding soil-forming processes for interpreting soil profiles, understanding soil formation is important for understanding site formation. The conceptual approaches particularly useful in soil geomorphic and geoarchaeological research are summarized below. Soil-forming processes as components of site formation are discussed more fully in chapter 10. The following discussions of conceptual approaches to pedogenesis are roughly arranged in order of increasing complexity. The “multiple-process model” is essentially a categorization of soil-forming processes. It does not explain pedogenesis but is a useful way to sort and group the many soil-forming processes. The “state factor” approach and the “K-cycle” concept do not deal directly with soil formation, but instead focus on important external factors and processes that drive or affect pedogenesis such as climate and geomorphic evolution. The “soil evolution” model and the “new global view of soils” attempt to integrate pedogenic process with landscape evolution, climate, and other factors. This section closes with discussion of two important aspects of pedogenesis and pedogenic pathways that offer caveats in the use of soils for reconstructing the past. Soils are the result of biogeochemical processes determined and driven by the ecosystem (following Buol et al., 1997). This relationship is more simply described as “internal soil-forming processes” driven by “external soil-forming factors” (fig. 3.1; after Buol et al., 1984). A useful approach to categorizing the many and varied internal soil-forming processes responsible for pedogenesis is the multiple-process model of Simonson (1959, 1978).


2020 ◽  
Vol 25 (7) ◽  
pp. 652-660 ◽  
Author(s):  
Toby M. Maxwell ◽  
Lucas C.R. Silva

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