Privacy concerns in many aspects of electronic communication trigger the need to re-examine – with privacy in mind – familiar security services, such as authentication and key agreement. An Affiliation-Hiding Group Key Agreement (AH-AGKA) protocol (also known as Group Secret Handshake) allows a set of participants, each with a certificate issued by the same authority, to establish a common auth...

BACKGROUND Both temperature and humidity may independently or jointly contribute to the risk of influenza infections. We examined the relations between the level and decrease of temperature, humidity and the risk of influenza A and B virus infections in a subarctic climate. METHODS We conducted a case-crossover study among military conscripts (n = 892) seeking medical attention due to respira...

introduction: optimal radiopacity is one of the properties required for a root canal sealer that helps the distinction between the sealer and surrounding anatomic structures and evaluation of the quality of root filling. so, the purpose of this study was to evaluate the radiopacity of six root canal sealers at different focal distances. materials and methods: in this in vitro study, six endodon...

introducing ahmed khidroya, a sufi from balkh in the 3rd century (ah.), is the aim of present essay. so the author provides information about his name and family, hometown, date of death, works and companions, using old sources in historical analysis method.

objective: the aim of this in vitro study was to compare the coronal microleakage between streptococcus sanguis per se and a mixture suspension of e. faecalis and c. albicans in root canals filled with gutta-percha and either ah 26 or ah plus sealer. materials and methods: one-hundred and ten extracted human teeth were decoronated to a standardized root length of 14 mm and prepared using mtwo n...

BACKGROUND During the past decade in the UK, only one in six cycles of assisted conception has resulted successfully in a live birth. Assisted hatching (AH) has been proposed to improve outcome. This systematic review of randomized controlled trials addresses primary outcomes of live birth, clinical pregnancy and embryo implantation. METHODS Trials on post-fertilization disruption of the zona...

Introduction: Optimal radiopacity is one of the properties required for a root canal sealer that helps the distinction between the sealer and surrounding anatomic structures and evaluation of the quality of root filling. So, the purpose of this study was to evaluate the radiopacity of six root canal sealers at different focal distances. Materials and Methods: In this in vitro study, six endodo...

1. Abstract 2. Introduction 3. A subgroup of protozoa possess PKGs with more than two cGMP-binding sites 4. Functional analysis of individual cGMP-binding sites of apicomplexan PKGs 5. Potential autoinhibitory N-terminal sequences 6. Autophosphorylation of PKG isoforms 7. Biochemical properties of apicomplexan PKGs 8. Apicomplexan parasite PKGs as specific drug targets 9. Biological function of...

Let G be a reductive Lie group, g its Lie algebra, and M a G-manifold. Suppose Ah(M) is a Uh(g)-equivariant quantization of the function algebra A(M) on M . We develop a method of restricting Ah(M) to the Uh(g)-equivariant quantization on Gorbits in M . We are concerned with those quantizations that may be simultaneously represented as subalgebras in U∗ h(g) and quotients of Ah(M). It turns out...