Understanding the initial events in the establishment of vaginal human immunodeficiency virus type-1 (HIV-1) entry and infection has been hampered by the lack of appropriate experimental models. Here, we show in an ex vivo human organ culture system that upon contact in situ, HIV-1 rapidly penetrated both intraepithelial vaginal Langerhans and CD4(+) T cells. HIV-1 entered CD4(+) T cells almost...

1 of 2 DESCRIPTION A man in his late thirties presented with a 6 month history of fevers, dyspnoea, productive cough and an unintentional 50 pound weight loss. Evaluation revealed cavitating Hodgkin’s lymphoma. During the hospital course, a percutaneous drain was placed into a large cavity of the left upper lobe. When the drain was later removed while the patient was undergoing mechanical venti...

abstract background: studies have shown that, with regard to social, cultural, and institutional contexts, several factors affect family decision-making on organ donation. this study aimed to investigate the effective factors in organ donation by family members with brain-dead patients. materials and methods: this was a descriptive-comparative study in which a researcher-made questionnaire was ...

introduction: according to the previous studies, several social, cultural, and organizational factors are involved in the decision of families of brain death victims for organ donation. the present study was performed to determine the effective factors in the decision of organ donation among families of brain death victims. methods: in this descriptive-comparative study data were gathered throu...

background: the basal medium that supports isolated mouse oviduct (imo) is important for supporting embryo development and quality. methods: the culture of ovine ivm/ivf zygotes was done in imo using sofaacibsa and sofaabsa as basal medium of imo and in sofaabsa alone as control. for preparation of imo mature inbred strain c57bl/6 female mice were synchronized and mated with vasectomized males....

Proof. Myhill has proved that any productive set is productive under a 1-1 total function. A corresponding result is easily established for any contraproductive set having at least one total contraproductive function. Letting h(x, y) be the recursive function of [2, Theorem 2.4, p. 69], consider the sequence s0 = h(0, 0), Sx — h(l, s0), s2 = h(0, Sx), Si = h(i, s2), Si = h(2, S3), and so on. Th...

Studies of computer-supported collaborative learning have begun to explore processes of online group cognition—such as small-group methods of problem solving—and how they can be mediated by various technological and interactional mechanisms to promote academically productive discourse. This chapter first presents (1) an analysis of co-presence as a foundational aspect of online interaction in a...

Preliminary version; no citation please 2 ABSTRACT In this still ongoing exercise, we provide a fresh scrutiny of the productivity performance of Chinese industry for the period 1952-2000 using a newly constructed data set. We have relaxed most unrealistic neo-classical assumptions as used in other studies, such as profit maximisation, perfect competition and constant returns to scale and taken...