We provide an introduction to Program Algebra (PGA, an algebraic approach to the modeling of sequential programming) and to Thread Algebra (TA). PGA is used as a basis for several lowand higher-level programming languages. As an example we consider a simple language with goto’s. Threads in TA model the execution of programs. Threads may be composed with services which model (part of) the execut...

Cyclic voltammetry (CV) and differential pulse voltammetry (DPV) were performed with a glassy carbon electrode (GCE) modified with polyglutamic acid (PGA) on the three dihydroxybenzene isomers, catechol (CT), hydroquinone (HQ), and resorcinol (RS). At bare GCE, these isomers exhibited voltammograms with highly overlapped redox peaks that impeded their simultaneous detection in binary and ternar...

In the setting of program algebra (PGA) we consider the repeat instruction. This special instruction is designed to represent infinite sequences of instructions as finite, linear programs. The resulting program notation is called PGLA and can be considered a string syntax for PGA. We redefine the repeat instruction by allowing its counter to be also zero. Then we show that PGLAcore, a kernel of...

Certain 4-amino derivatives of pteroylglutamic acid (PGA), as well as various nitrogen mustards and ethylenimines, have shown chemothenapeutic activity in screening tests against transplanted mouse leukemia (8—7, 1@,14, 15). In an attempt to differentiate between the modes of action of these compounds, a technic has been employed (4, 11) which evaluates the ability of compounds to affect in v...

BACKGROUND Chelation therapy involving organic chelators for treatment of heavy metal intoxication can cause cardiac arrest, kidney overload, mineral deficiency, and anemia. METHODS In this study, superparamagnetic iron oxide nanoparticles (SPIONs) modified with an edible biopolymer poly(γ-glutamic acid) (PGA) were synthesized by coprecipitation method, characterized and evaluated for their r...

Many optimization problems have complex search space, which either increase the solving problem time or finish searching without obtaining the best solution. Genetic Algorithm (GA) is an optimization technique used in solving many practical problems in science, engineering, and business domains. Parallel Genetic Algorithm (PGA) has been widely used to increase speed of GA, especially after the ...

Pteroylglutamic acid (PGA) absorption was assessed in ten untreated tropical sprue (TS) and eight control subjects utilizing a marker perfusion technique. Physiologic concentrations of the vitamin (25 ng/ml) dissolved in iso-osmotic solutions containing either mannitol of glucose at a concentration of 55.6 mM were perfused on each subject on two consecutive days. A statistically significant dif...

Greedy based approach for view selection at each step selects a beneficial view that fits within the space available for view materialization. Most of these approaches are focused around the HRU algorithm, which uses a multidimensional lattice framework to determine a good set of views to materialize. The HRU algorithm exhibits high run time complexity as the number of possible views is exponen...

BACKGROUND Rotator cuff regeneration using tissue engineering techniques is a challenging treatment in elderly patients with irreparable rotator cuff tears. HYPOTHESIS A polyglycolic acid sheet scaffold with seeded mesenchymal stem cells (MSCs) may enhance the expression of type I collagen products and increase the mechanical strength of the regenerated tendon in vivo. STUDY DESIGN Controll...

Epidermal growth factor receptor (EGFR), upregulated in gastric cancer patients, is an oncogene of interest in the development of targeted cancer nanomedicines. This study demonstrates in silico modeling of monoclonal antibody cetuximab (CET MAb)-conjugated docetaxel (DOCT)-loaded poly(γ-glutamic acid) (γ-PGA) nanoparticles (Nps) and evaluates the in vitro/in vivo effects on EGFR-overexpressing...