A Novel Queue Length Aware Distributed Link Scheduler for Multi-Transmit Receive Wireless Mesh Networks

Next generation Wireless Mesh Networks (WMNs) will require a link scheduler that exploits the full advantage of Multi-Transmit-Receive (MTR) commuication. To this end, we design a distributed link scheduler called Voting-ALGO that is aware of queue lengths and uses the celebrated max weight policy to achieve 100% throughput

Assessment of Science Teachers' Awareness towards Immunity and Immunization in Primary School at Baghdad City

Abstract:Objectives: To assess of Science Teachers' Awareness towards immunity and immunization in Baghdad City Primary Schools Methodology: A descriptive study was conducted, included (100) primary school,(50) in Al Rassafa sector, and (50) in Al Karkh sector, from March 5th 2012 to March 15th 2013, to assess of science teachers' awareness towards immunity and immunization. A cluster sample of (100) Science teachers (males and females) were selected, as one teacher from each school. A questioner format was used for data collection. The validity of questioner was estimated through a penal of experts related to the field of study, and its reliability was estimated through a pilot study conducted in (20) schools is excluded from the original sample which included (20) teachers from April 8th 2012 to April 14th 2012. Data were analyzed through the application of descriptive and inferential statistical analysis. Results: The results of the study indicated that (78%) of sample were female, and (39%) of them their ages were between (30-39) years old, (65%) of them were married, while (21%) of them were single, and (50%) of them were institute graduates. Also the study indicated that (26%) of teachers had (15–19) years of employment in teaching sector. Furthermore, (58 %) of sample had no opportunity to be involved in training courses concerning communicable diseases control. The results of this study indicate that, teachers' awareness was poor (in adequate awareness) towards immunity and immunization against communicable diseases in Baghdad City Primary Schools Conclusion: The study concluded that teachers' awareness towards immunity and immunization in Baghdad primary schools was poor.Recommendations: The study recommends that there is a need for cooperation between the Ministry of Health and the Ministry of Education on writing a book systematically for primary schools about the nature of the transitional diseases and how to control them through immunity and immunization, and Emphasis on continuous sessions concerning communicable diseases control for teachers in all primary schoolsKeyword: Assessment, Awareness, Communicable diseases, Immunity, Immunization

One-Pot Synthesis of 5,6-Dihydro-4H-1,2-Oxazines by Cyclization of Ketoximes with Derivatives of Allylbenzene

A new series of 5,6-dihydro-4H-1,2-oxazines were synthesized via hetero Diels-Alder reaction of  α-nitrosolefins with derivatives of allylbenzene. α-Nitrosoolefins were generated from ketoximes by the action of chloramine-T and triethylamine

Taxonomy and structure of the Romanian personality lexicon

We identified 1746 personality-relevant trait-adjectives in a Romanian dictionary, of which 412 were classified as descriptors of dispositions by 10 judges. Self-ratings were collected from 515 participants on those 412 adjectives, and the ratings were factored using principal components analysis. Solutions with different numbers of factors were analysed. The two- and three-factor solutions, respectively, confirmed the Big Two and Big Three of personality traits. A five-factor solution reflected the Big Five model with a fifth factor emphasising Rebelliousness versus Conventionality. The five-factor solution was related to the International Personality Item Pool-Big Five scales, and the highest correlations were indeed between the corresponding factors and scales. A six-factor solution was indicative of the six-factor model as expressed in the HEXACO model, yet with a weak Honesty-Humility factor. Additional analysis with self-ratings from 218 participants on marker-scales for the six-factor solution and on the six scales of the HEXACO did not produce a clear one-to-one correspondence between the two sets of scales, confirming indeed that the six-factor model was only partially found

Testing a novel method to identify salt production pottery via release and detection of chloride ions

A recently published analytical technique to detect chloride ions in ceramic vessels that were used to produce salt is replicated (Horiuchi et al. 2011). The method involves releasing bound chloride ions permanently retained by the vessel via a chemical exchange reaction with ammonium fluoride, following the removal of all unbound salt with water. The chloride concentration is measured in solution and used to quantify the amount of salt that was bound to the ceramic matrix. Our data suggest that this method is not a viable way to consistently discriminate salt-making pottery, as the detected chloride may not be derived from salt production activities, but from the ceramic material of the pot itself. We employ experimental vessels in which salt-making was simulated, in addition to analyzing excavated sherds from two Chinese and one North American site known to have been involved in salt production. The method proposed by Horiuchi et al. is not able to distinguish salt-making and non-salt-making vessels from one another.Anthropolog

Changes in serum levels of Total protein , Albumin and Globulin in patients with Behcet's Disease.

In order to have an idea about some of biochemical changes which might play a role in the pathogenesis of Behcet's disease. Estimation of serum total protein, albumin, globulin and HLA typing were carried out in 70 patients with Behcets disease using colorematric, mathematic & microlymphocytotoxicity tests respectively, compared with 35 patients with recurrent oral ulcers, and 35 healthy control group. Hyperproteinemia, hyperglobulinemia with hypoalbuminemia were observed in those patients in comparison to control group

CURVATURE DUCTILITYOF REINFORCED CONCRETE BEAM SECTIONS STIFFENED WITH STEEL PLATES

This paper presents theoretical parametric study of the curvature ductility capacity for reinforced concrete beam sections stiffened with steel plates. The study considers the behavior of concrete and reinforcing steel under different strain rates. A computer program has been written to compute the curvature ductility taking into account the spalling in concrete cover. Strain rate sensitive constitutive models of steel and concrete were used for predicting the moment-curvature relationship of reinforced concrete beams at different rate of straining. The study parameters are the yield strength of main reinforcement, yield strength of transverse reinforcement, compressive strength of concrete, spacing of stirrups and steel plate thickness. The results indicated that higher strain rates improve both the curvature ductility and the moment capacity of reinforced concrete beam sections. Moreover the section curvature ductility increases as the thickness of the stiffening plates decreases

STIFFNESS AND DAMPING PROPERTIES OF EMBEDDED MACHINE FOUNDATIONS

In this study, a dynamic analysis of machine foundations under vertical excitations is carried out. The effect of embedment and foundation geometry has been taken into account. The stiffness and damping of soil are considered as frequency dependents. A computer program (CPESP) in FORTRAN POWER STATION has been coded to evaluate the stiffness and damping coefficients depending on excitation frequency and embedment depth. Results have shown that increasing the embedment depth leads to increasing the resonant frequency and decreasing the amplitude of vibration