Elementary proofs are presented for two graph theoretic results, originally proved by H. Shirazi and J. Verstraëte using the combinatorial Nullstellensatz. In an undirected graph G = (V, E) we denote by dG(v) the degree of v ∈ V . If F (v) ⊆ N is a set of forbidden degrees for every v ∈ V , then a subgraph G = (V, E) of G is called F -avoiding if dG′(v) / ∈ F (v) for all v ∈ V . Theorem 1 (Shir...

AIM Parents can play an important role in improving the prognosis of avulsed permanent teeth if they are properly informed about the necessary dental first-aid steps at the time of an accident. The purpose of this study was to assess the knowledge of Shirazi parents in traumatic a simple leaflet on improving their knowledge about this topic. MATERIALS AND METHODS One hundred and fifty parents...

BACKGROUND AND OBJECTIVES The efficacy of Mentha piperita L, Zataria multiflora Boiss and Thymus vulgaris L essential oils (EOs) was evaluated for controlling the growth of Phytophthora drechsleri, the causative agent of damage to many crops that is consumed directly by humans. MATERIALS AND METHODS The EOs used in this study was purchased from Magnolia Co, Iran. The pour plate method in petr...

This paper presents a comparative study between different oil production enhancement scenarios in the Saadi tight reservoir located Halfaya Iraqi field. The exhibits poor petrophysical characteristics, including medium pore size, low permeability (reaching zero some areas), and high porosity of up to 25%. Previous stimulation techniques such as acid fracturing matrix acidizing have yielded this...

M. DONOWITZ,1 C. DE LA HORRA,2 M. L. CALONGE,2 I. S. WOOD,2 J. DYER,2 S. M. GRIBBLE,2 F. SANCHEZ DE MEDINA,1 C. M. TSE,1 S. P. SHIRAZI-BEECHEY,3 AND A. A. ILUNDAIN2 1Departments of Medicine and Physiology, GI Division, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205-2195; 2Departments of Animal Physiology and Biology, School of Pharmacy, University of Seville, E-41009 Sev...