Generators of simple graded Lie algebras of finite growth

2017 ◽  
Vol 148 (2) ◽  
pp. 315-324
Author(s):  
Liming Tang ◽  
Wende Liu
Keyword(s):  
Lie Algebras ◽  
Graded Lie Algebras ◽  
Finite Growth

scholarly journals Demographic aspects of Chrysomya megacephala (Diptera, Calliphoridae) adults maintained under experimental conditions: reproductive rate estimates

2006 ◽  
Vol 49 (3) ◽  
pp. 457-461 ◽  
Author(s):  
Marcelo Henrique de Carvalho ◽  
Claudio José Von Zuben
Keyword(s):  
Growth Rate ◽  
Life Expectancy ◽  
Reproductive Rate ◽  
Demographic Parameters ◽  
Intrinsic Growth Rate ◽  
Experimental Conditions ◽  
Chrysomya Megacephala ◽  
Finite Growth ◽  
Life Expectancy Estimate ◽  
Age Estimates

The objective of this work was to evaluate some aspects of the populational ecology of Chrysomya megacephala, analyzing demographic aspects of adults kept under experimental conditions. Cages of C. megacephala adults were prepared with four different larval densities (100, 200, 400 and 800). For each cage, two tables were made: one with demographic parameters for the life expectancy estimate at the initial age (e0), and another with the reproductive rate and average reproduction age estimates. Populational parameters such as the intrinsic growth rate (r) and the finite growth rate (lambda) were calculated as well.

scholarly journals Improving Short-Range Ensemble Kalman Storm Surge Forecasting Using Robust Adaptive Inflation

2013 ◽  
Vol 141 (8) ◽  
pp. 2705-2720 ◽  
Author(s):  
M. U. Altaf ◽  
T. Butler ◽  
X. Luo ◽  
C. Dawson ◽  
T. Mayo ◽  
...  
Keyword(s):  
Storm Surge ◽  
Short Range ◽  
Estimation Error ◽  
Test Cases ◽  
Finite Growth ◽  
The Common ◽  
Robust Adaptive ◽  
Ensemble Filtering ◽  
Reported Data ◽  
Storm Surge Forecasting

Abstract This paper presents a robust ensemble filtering methodology for storm surge forecasting based on the singular evolutive interpolated Kalman (SEIK) filter, which has been implemented in the framework of the H∞ filter. By design, an H∞ filter is more robust than the common Kalman filter in the sense that the estimation error in the H∞ filter has, in general, a finite growth rate with respect to the uncertainties in assimilation. The computational hydrodynamical model used in this study is the Advanced Circulation (ADCIRC) model. The authors assimilate data obtained from Hurricanes Katrina and Ike as test cases. The results clearly show that the H∞-based SEIK filter provides more accurate short-range forecasts of storm surge compared to recently reported data assimilation results resulting from the standard SEIK filter.

scholarly journals Classification of Finite-Growth General Kac–Moody Superalgebras

2007 ◽  
Vol 35 (3) ◽  
pp. 851-874 ◽  
Author(s):  
Crystal Hoyt ◽  
Vera Serganova
Keyword(s):  
Finite Growth

scholarly journals Demography of Attalea nucifera: Sustainable management and conservation of a threatened species of Colombia

Caldasia ◽  
2020 ◽  
Vol 42 (2) ◽  
pp. 313-325
Author(s):  
Jorge Prada-Ríos ◽  
Néstor García
Keyword(s):  
Population Dynamics ◽  
Population Structure ◽  
Sustainable Management ◽  
Matrix Population Model ◽  
Environmental Disturbances ◽  
Finite Growth ◽  
Demographic Processes ◽  
Extinction Threshold ◽  
Magdalena River ◽  
Management And Conservation

Attalea nucifera is an acaulescent palm native of Colombia that is in risk of extinction. Between 2016-2017 we evaluated the structure and density of populations in six localities of the Magdalena river valley, and studied the population dynamic in the locality of Guaduas, Cundinamarca (VC). Although the population structure differs among locations (X2 = 1819, gl = 25, P < 0.05), populations tend to group according to the degree of habitat perturbation. In four localities an inverted J population structure was observed. A matrix population model showed a finite growth rate (λ) of 0.979 (CI95 % = 0.962–0.997). The demographic processes of the permanence of seedlings, sub-adults and young adults show more elasticity. A transient dynamic simulation projected to 30 years shows that under the scenarios of paddock and cattle lopping the population size decrease drastically. The extinction threshold calculated for the population in the locality VC is of 145 years, but paddock and cattle lopping activities can reduce it to less than 40 years. Although Attalea nucifera persists in very disturbing locations in the Middle Magdalena Basin, the results of population dynamics in the locality VC suggest that it could be less tolerant of environmental disturbances. Thus, it is necessary to increase our knowledge of its population dynamics, as well as seed germination and seedling establishment in different disturbance conditions.

Microcalorimetric and Nonlinear Dynamic Study on the Finite Growth of Escherichia Coli

1998 ◽  
Vol 14 (02) ◽  
pp. 174-177
Author(s):  
Zhou Pei-Jiang ◽  
◽  
Xie Chang-Li ◽  
Yang Feng ◽  
Qu Song-Sheng ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Nonlinear Dynamic ◽  
Dynamic Study ◽  
Finite Growth
Sign in / Sign up

Export Citation Format

Share Document