abstract. let $l$ be a lattice with the least element $0$. an element $xin l$ is a zero divisor if $xwedge y=0$ for some $yin l^*=lsetminus left{0right}$. the set of all zero divisors is denoted by $z(l)$. we associate a simple graph $gamma(l)$ to $l$ with vertex set $z(l)^*=z(l)setminus left{0right}$, the set of non-zero zero divisors of $l$ and distinct $x,yin z(l)^*$ are adjacent if and only...

Non-ideal behaviour of mixed ions is disclosed in skin absorption experiments halide anions excised pig skin. Comparison pure and shows enhanced penetration chaotropic from solutions. An experimental design statistical analysis using a Scheffé {3,2} simplex-lattice allows investigating the full ternary diagram anion mixtures fluoride, bromide iodide. Synergism observed for iodide anions. A refi...

Abstract Edible film is an alternative packaging material to replace plastic. Protecting the product from oxidation processes and microbiological activities one of its functions. One biopolymers used for base edible fish gelatine Pangasius sp. skin. Silver nanoparticles Rhizophora mucronata were added increase film’s antioxidant antibacterial ability. This study aims determine effect silver on ...

Aim : This study was aimed to formulate a transdermal matrix patch using green tea leaf extract. Materials and methods The formulation optimized by the simplex lattice design method. correlation between responses analyzed chemometrics. observed were: 1. physical properties of patch, 2. percentage dissolution efficiency catechins, caffeine, epigallocatechin gallate released from patch. determina...

Krim alas bedak adalah jenis riasan dekoratif, yang biasanya mengandung bahan tabir surya. Dibenzalaseton merupakan salah satu agen surya organik potensial. Dalam krim tipe minyak dalam air, tingkat pemulihan fase tidak selalu meningkat bahkan jika konsentrasinya tinggi. Namun, menggunakan kombinasi dua pengemulsi, seperti span 80 dan tween 80, optimal mungkin solusi tepat. Penelitian ini bertu...

We consider polygon and simplex equations, of which the simplest nontrivial examples are pentagon (5-gon) Yang–Baxter (2-simplex), respectively. examine general structure (2n + 1)-gon 2n-simplex equations in direct sums vector spaces. Then, we provide a construction for their solutions, parameterized by elements Grassmannian Gr(n 1, 2n 1).

background and aims: several drugs are being used in treatment of hsv infection in human but still introducing an effective safe drug is desirable. methods: we investigated the inhibitory effect of morphine on replication of hsv in vitro. results: the results indicated that a concentration of up to 200 ug/ml morphine had a limited effect on vero cell viability. at this concentration the growth ...