Browsing University of Hertfordshire by Title
Now showing items 8209-8228 of 24360
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Explosive nucleosynthesis close to the drip lines
(1998-11)We give an overview of explosive burning and the role which neutron and/or proton separation energies play. We focus then on the rapid neutron capture process (r-process) which encounters unstable nuclei with neutron ... -
Explosive nucleosynthesis in massive Pop III stars and abundances in metal-poor stars and M87
(Astronomical Society of the Pacific, 2001)In order to understand the elemental abundance pattern observed in galaxies and clusters of galaxies of various metallicity, we investigate stability, evolution and explosion of massive population III stars. We find the ... -
An Exponential Lower Bound on OBDD Refutations for Pigeonhole Formulas
(2009)Haken proved that every resolution refutation of the pigeonhole formula has at least exponential size. Groote and Zantema proved that a particular OBDD computation of the pigeonhole formula has an exponential size. Here ... -
Exponential multistability of memristive Cohen-Grossberg neural networks with stochastic parameter perturbations
(2020-12-01)Due to instability being induced easily by parameter disturbances of network systems, this paper investigates the multistability of memristive Cohen-Grossberg neural networks (MCGNNs) under stochastic parameter perturbations. ... -
Exposing the background : Deep and local
(Palgrave Macmillan, 2012)Humans engage with the world and one another in sophisticated ways that (arguably) creatures lacking language cannot. Language (again, arguably) enables us to communicate meaningfully, to form contentful attitudes and ... -
Exposing the human nude phenotype [4]
(1999-04-08) -
Exposure to ambient air pollution and elevated blood levels of gamma-glutamyl transferase in a large Austrian cohort
(2023-07-20)Gamma glutamyl transferase (GGT) is related to oxidative stress and an indicator for liver damage. We investigated the association between air pollution and GGT in a large Austrian cohort (N = 116,109) to better understand ... -
Exposure to organophosphorus compounds : best practice in managing timely, effective emergency responses
(2023-12-01)Increasing indications, reports and studies demonstrate that threats from the deliberate use of chemical weapons remain high and are evolving. One of the deadliest classes of chemical weapons are the organophosphorus nerve ... -
Expressing a policy
(University of Hertfordshire, 1996)Policies, in particular security policies, are typically modelled using access control lists. This technique is not sufficient to model the full 'semantics' of a policy, especially when it applies to a task executed in a ... -
Expression and clinical significance of concomitant FAK/SRC and p-Paxillin in mobile tongue squamous cell carcinoma.
(2017-03-01)BACKGROUND/AIM: The focal adhesion kinase (FAK)/SRC phosphorylation cascade and its downstream target paxillin have been implicated in malignant transformation, tumor growth and progression, together with metastasis. The ... -
Expression and expropriation : the dialectics of autonomy and control in creative labour
(2010)Creative labour occupies a highly contradictory position in modern, global, ‘knowledge-based’ economies. On the one hand, companies have to balance their insatiable need for a stream of innovative ideas with the equally ... -
Expression and functionality of P-glycoprotein in human bronchial epithelial cells in vitro
(2011-09)P-glycoprotein (P-gp) is expressed in normal tissues with barrier functions where it participates in cell defence mechanisms (Huls, M. et al. J Pharm Exp Ther 2009; 328:3-9). Its presence in the bronchial epithelium and ... -
Expression et mise en scène syndicales à l’heure de la communication : une mutation délicate
(Publications de la Sorbonne, 2005) -
The expression of foreign DNA in bacteria
(Royal Society of Chemistry, 2000) -
The expression of foreign DNA in bacteria
(Royal Society of Chemistry, 1993) -
The expression of foreign DNA in E. coli
(Royal Society of Chemistry, 1985)