Bruce Robbins: Double Time: Durkheim, Disciplines, and Progress

Keyword(s):  
2002 ◽  
Vol 32 (2) ◽  
pp. 214-238 ◽  
Author(s):  
STEVE SOHMER
Keyword(s):  

2014 ◽  
Vol 2014 ◽  
pp. 1-15 ◽  
Author(s):  
Chao Liu ◽  
Yuanke Li

We investigate a nonautonomous two-species competitive system with stage structure and double time delays due to maturation for two species, where toxic effect of toxin liberating species on nontoxic species is considered and the inhibiting effect is zero in absence of either species. Positivity and boundedness of solutions are analytically studied. By utilizing some comparison arguments, an iterative technique is proposed to discuss permanence of the species within competitive system. Furthermore, existence of positive periodic solutions is investigated based on continuation theorem of coincidence degree theory. By constructing an appropriate Lyapunov functional, sufficient conditions for global stability of the unique positive periodic solution are analyzed. Numerical simulations are carried out to show consistency with theoretical analysis.


Development ◽  
1999 ◽  
Vol 126 (23) ◽  
pp. 5409-5420 ◽  
Author(s):  
O. Zilian ◽  
E. Frei ◽  
R. Burke ◽  
D. Brentrup ◽  
T. Gutjahr ◽  
...  

We have isolated the discs overgrown gene of Drosophila and shown that it encodes a homolog of the Casein kinase I(delta)/(epsilon) subfamily and is identical to the double-time gene. However, in contrast to the weak double-time alleles, which appear to affect only the circadian rhythm, discs overgrown alleles, including bona fide null alleles, show strong effects on cell survival and growth control in imaginal discs. Analysis of their phenotypes and molecular lesions suggests that the Discs overgrown protein is a crucial component in the mechanism that links cell survival during proliferation to growth arrest in imaginal discs. This work provides the first analysis in a multicellular organism of Casein kinase I(delta)/(epsilon) functions necessary for survival. Since the amino acid sequences and three-dimensional structures of Casein kinase I(delta)/(epsilon) enzymes are highly conserved, the results suggest that these proteins may also function in controlling cell growth and survival in other organisms.


Author(s):  
Anne Whitehead

This chapter focuses on medicine and empathy in the context of global capitalism. It argues that our affective interactions are necessarily embedded in, and inflected by, structural and material relations of power. Empathy emerges as an affect that follows existing routes of privilege. The first section, ‘Medical migrations’, analyses current debates about the relation of medical migration to inequalities in world health and traces the circuits by and through which medical resource is distributed. Turning to Aminatta Forna’s The Memory of Love, it is argued that Forna pays detailed attention to the unevenness of the global economics of medical resource, with specific reference to Sierra Leone. In the second section, Forna’s protagonist Adrian Lockheart is used to open up the question of how affect circulates, and where it sticks, in the novel and discusses Adrian’s empathetic misrecognition in the treatments of his patients in Sierra Leone. The final section asks whether change is possible in the novel, drawing out the significance of the novel’s double time frame to suggest that the unfulfilled political promise of the past can shape the future.


2018 ◽  
Vol 47 (6) ◽  
pp. 612001
Author(s):  
王琦 WANG Qi ◽  
高春峰 GAO Chun-feng ◽  
周健 ZHOU Jian ◽  
魏国 WEI Guo ◽  
聂晓明 NIE Xiao-ming ◽  
...  

Agronomy ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 1810
Author(s):  
Cristina Pornaro ◽  
Matteo Serena ◽  
Stefano Macolino ◽  
Bernd Leinauer

Perennial ryegrass is generally known as exhibiting poor drought tolerance with poor recuperative capacity. The objective of this study was to evaluate the effects of acute drought followed by a recovery period, on 11 perennial ryegrass varieties (Apple SGL, Azimuth, Barrage, Caddieshack, Double, Double Time, Ecologic, New Orleans, Pizzaz 2, Rainwater, Turfgold) and one tall fescue (Olympic Gold). The study was conducted in a rain-out structure to control water inputs. Green cover percentage, visual quality, color, normalized difference vegetation index (NDVI), and soil moisture were measured weekly. Eighty percent coverage was considered optimal and was reached only during the first two weeks of the drought period. Starting from the fourth week, a significant decrease in green cover was observed for most of the perennial ryegrass cultivars. However, 5 cultivars displayed a visual quality rate greater than 6, which is considered acceptable during this period, while color ratings were recorded greater than 6 for 7 cultivars. At the end of the drought phase, the cultivar ’New Orleans’ exhibited significantly greater green cover compared to most other perennial ryegrasses. The recovery of the grasses was slow and at the end of the experiment the variability in green cover between cultivars was greater than during the first week.


Sign in / Sign up

Export Citation Format

Share Document