Impact Of Hepatitis C Co-Infection On CD4 Cell Count In HIV Infected Subjects

Background: Human immunodeficiency virus (HIV) and Hepatitis C virus (HCV) co-infection is reported to be common among HIV infected subjects due to share routes of transmission. The fact that HCV infection may act as cofactor for HIV disease progression has been suggested.\ud Objective: To determine if HCV and HIV co-infection affect the immunocompetence (CD4) of the infected subjects and response to Highly Active Anti Retroviral therapy.\ud Subjects and methods: Fifty HIV/HCV co-infected and fifty HIV monoinfected adults were retrospectively studied. Their baseline CD4 cell counts were done using Dynal beads technique before commencement of HAART and repeated after six months.\ud Results: The CD4 cell counts of co-infected subjects were lower than the mono-infected subjects. Sixty eight percent of the co-infected subjects had CD4 cell count less than 200cells/uL, and they responded poorly to HAART therapy than the mono-infected subjects (P<0.05). Those with CD4 cell count greater than 200cells/uL responded better to treatment than those with CD4 cell count less than 200cells/uL (P<0.001)\ud Conclusion: HCV/HIV co-infection affects the immunocompetence of the patients and HCV may acts as cofactor for HIV disease progression. It is needful to screen all HIV positive subjects for HCV antibody as this will improve their clinical management and outcome

An analysis of two-layered flows in pipelines : a thesis presented in partial fulfillment of the requirements for the degree of Master of Science in Mathematics at Massey University,

CD is unreadableIn this thesis, we consider the two-layered fluid flow problem in a circular pipeline. The justification of the model we shall employ, namely the stratified flow model will be discussed. Our mathematical model is built from first principles, the conservation relations of mass, momentum and energy will be analysed and applied to the various flow configurations. We start by considering the simplest case possible, i.e. the planar axial interface and then extend the model by considering first, the motion of a travelling jump in the pipe section and second, to allow a small interfacial gradient. The stability of the steady flow configuration is investigated using a linear stability method. This method starts off by assuming a travelling wave solution for the perturbation and then observing whether there is growth (unstable) or decay (stable) in this perturbed state. A stability map is provided to indicate the various possible scenarios for the travelling perturbation wave

The significance of pauses in EFL listening comprehension tests

Many EFL (English as a Foreign Language) listening comprehension tests use multiple-choice formats. How well such tests are devised is a crucial issue in EFL assessment and instruction. An important aspect of such tests is the time interval between items. Pauses between items are highly significant because they affect the processing of oral linguistic data and EFL learners require time to focus on form, as suggested by Krashen's Monitor Model. The present study examines the effects of variation in time interval between test items on the performance of a group of EFL learners studying English for a BA degree at an Iranian institution of higher education. Twenty-nine undergraduate students in a listening comprehension class took part in the study. Data were collected on their beginning proficiency and listening ability. As part of their course, the learners also took three parallel listening comprehension tests developed by the National Test Center of the institution (the central branch of the University Of Payame-Noor). These three listening tests were modified and the tapes were rerecorded to include 10- 30-, and 60-second intervals between items. The analysis of variance between their performances on the tests indicated that the length of time interval between items was a very significant factor. Students performed significantly better on the test with 30-second intervals between items. The findings of the study sensitize EFL teachers to plan for the assessment of listening performance. They also contribute to arguments about the depth of linguistic processing and the issue of time in EFL listening comprehension

Segregating California's Future: Inequality and Its Alternative, 60 Years after Brown v. Board of Education

California has had serious issues of separation and discrimination in its schools since it became a state. It was little affected by the Brown decision, which was directed primarily at the 17 states that had laws mandating the segregation of African Americans. Although the California Supreme Court recognized a broad desegregation right in the state constitution, and the legislature briefly mandated that school boards take action to enforce this right, both were reversed by voter-approved propositions. The 1979 Proposition One led to the termination of the city's desegregation plan -- the first major city in the U.S. to end its plan. U.S. Supreme Court decisions in the 1990s led eventually to the termination of the federal desegregation orders in San Francisco and San Jose. Major court decisions in California mandating desegregation that occurred in the 1970s were overturned by the 1990s, thus California presently has no school integration policy. Segregation has grown substantially in the past two decades, especially for Latinos. White students' contact with nonwhite and poor students has increased significantly because of the dramatic change in overall population. Black and Latino students are strongly concentrated in schools that have far lower quality, according to state Academic Performance Index (API) ratings. Conversely, a far larger share of whites and Asians attend the most highly related schools and thus are the most prepared for college. A half-century of desegregation research shows the major costs of segregation and the variety of benefits of schools that are attended by all races

Development and validation of the social emotional competence questionnaire (SECQ)

Reliable and valid measures of children’s and adolescents’ social emotional competence (SEC) are necessary to develop in order to assess their social emotional development and provide appropriate intervention in child and adolescent development. A pool of 25 items was created for the Social Emotional Competence Questionnaire (SECQ) that represented five dimensions of SEC: self-awareness, social awareness, self-management, relationship management and responsible decision-making. A series of four studies are reported relating to the development and validation of the measure. Confirmatory factor analyses of the responses of 444 fourth-graders showed an acceptable fit of the model. The model was replicated with another 356 secondary school students. Additional studies revealed good internal consistency. The significant correlations among the five SEC components and academic performance provided evidence for the predictive validity of the instrument. With multiple samples, these results showed that the scale holds promise as a reliable, valid measure of SECpeer-reviewe

Quantum Thetas on Noncommutative T^4 from Embeddings into Lattice

In this paper we investigate the theta vector and quantum theta function over noncommutative T^4 from the embedding of R x Z^2. Manin has constructed the quantum theta functions from the lattice embedding into vector space (x finite group). We extend Manin's construction of the quantum theta function to the embedding of vector space x lattice case. We find that the holomorphic theta vector exists only over the vector space part of the embedding, and over the lattice part we can only impose the condition for Schwartz function. The quantum theta function built on this partial theta vector satisfies the requirement of the quantum theta function. However, two subsequent quantum translations from the embedding into the lattice part are non-additive, contrary to the additivity of those from the vector space part.Comment: 20 pages, LaTeX, version to appear in J. Phys.