in 2001, s. bulman-fleming et al. initiated the study of three flatness properties (weakly kernel flat, principally weakly kernel flat, translation kernel flat) of right acts $a_{s}$ over a monoid $s$ that can be described by means of when the functor $a_{s} otimes -$ preserves pullbacks. in this paper, we extend these results to$s$-posets and present equivalent descriptions of weakly kernel po...

The effects of dynamic quantum allocation and swap-time variability on central processing unit (CPU) behavior are investigated using a model that allows both quantum length and swap-time to be statedependent random variables. Effective CPU utilization is defined to be the proportion of a CPU busy period that is devoted to program processing, i.e. the time not spent in swapping. Using this measu...

In this paper we introduce a class of partially ordered sets, called differential posets, with many remarkable combinatorial and algebraic properties. (Terminology from lattice theory and the theory of partially ordered sets not explained here may be found in [St6].) The combinatorial properties of differential posets are concerned with the counting of saturated chains Xl < x2 < ... < x k or of...

A novel strategy for extremely durable, reliable, and selective in situ real-time determination of superoxide anion (O(2) (-)) based on direct electron transfer of a biomimetic superoxide dismutase (SOD), Mn(3)(PO(4))(2), at highly conductive TiO(2) nanoneedles is reported for the first time, and is further exploited for the determination of O(2) (-) from living normal and cancer ovary cells di...

Mirfazaelian et al. developed a physiologically based pharmacokinetic (PBPK) model for the pyrethroid pesticide deltamethrin in the rat. This model describes gastrointestinal (GI) tract absorption as a saturable process mediated by phase III efflux transporters which pump deltamethrin out of the intestinal enterocytes into the GI tract lumen, resulting in minimal net absorption at low concentra...

Membrane-based technologies have been widely used for surface water treatment. Yet, many aspects of this technology can still be improved. This study aims to develop polyethersulfone (PES)-based phase-inverted membranes improve the morphological structure, antimicrobial properties, and performance by incorporating Poloxamer 188 patchouli oil as dope solution additives. The membrane was assessed...