Background: Ovarian cryopreservation is an efficient way to preserve fertility of cancer patients before chemotherapy. This study was designed to evaluate the effect of apha lipoic acid (ALA) on reactive oxygen species (ROS) production and total antioxidant capacity (TAC) of cultured isolated pre-antral follicles derived from vitrified and non-vitrified ovarian tissue. Materials and Methods: Im...

Characterizing Asphaltene Deposition in the Presence of Chemical Dispersants in Porous Media Micromodels Yu-Jiun Lin, Peng He, Mohammad Tavakkoli, Nevin Thunduvila Mathew, Yap Yit Fatt, John C. Chai, Afshin Goharzadeh, Francisco M. Vargas, and Sibani Lisa Biswal Department of Chemical and Biomolecular Engineering, Rice University, Houston, Texas 77005, United States Department of Chemical Engin...

A new upper bound is given on the number of ways in which a set of N points in Rn can be partitioned by k parallel hyperplanes. This bound improves upon a result of Olafsson and Abu-Mostafa [IEEE Trans. Pattern Analysis and Machine Intelligence 10(2), 1988: 277-281]; it agrees with the known (tight) result for the case k = 1; and it is, for fixed k and n, tight to within a constant. A previousl...

Introduction During the course of archaeological research completed in the area of Bilad al-Qadim in the northeast of Bahrain in 2001, trial excavations and survey were undertaken at the spring of Abu Zaydan (N26 12¢ 24.5¢¢ E050 32¢ 50.7¢¢). The focus of this research project was to investigate the Islamic period on Bahrain, hence the remains recorded at Abu Zaydan were unexpected, comprising a...

Awad E Osman1*, Habiba Alsafar2, Guan K Tay3, Jasem BJM Theyab4, Mohamed Mubasher1, Nezar Eltayeb-El Sheikh1, Hanan AlHarthi1, Michael H. Crawford5 and Gehad El Ghazali6 1PCLM, King Fahad Medical City, Riyadh 11525, Saudi Arabia 2Khalifa University of Science Technology and Research, Abu Dhabi, United Arab Emirates 3Centre for Forensic Science, The University of Western Australia, Crawley, West...

New York University Abu Dhabi (NYUAD Saadiyat Island, Abu Dhabi, UAE. E-mail: a Centro de Investigaciones Cient́ıcas Av Qúımica Fundamental, Universidade de C Fraga 10, 15008 A Coruña, Spain Laboratoire d'Ingénierie Moléculaire Appliq UdS, ECPM, 25 rue Becquerel, 67087 Strasb School of Sciences, Indiana University Koko Laboratoire de Chimie Bioorganique et Méd rue Becquerel, 67087 Strasbourg, F...

BACKGROUND Vancomycin-resistant enterococci are pathogenic bacteria that attenuate antibiotic sensitivity by producing peptidoglycan precursors that terminate in D-Ala-D-lactate rather than D-Ala-D-Ala. A key enzyme in effecting antibiotic resistance is the metallodipeptidase VanX, which reduces the cellular pool of the D-Ala-D-Ala dipeptide. RESULTS We constructed eleven mutants, using the r...