6,776 research outputs found
Non-Commercial Homestay;an exploration of encounters and experiences of guests visiting the UK.
This paper explores the experiences of tourists travelling within the UK using hosts through the web based non commercial homestay organisations. The author, as a host explores the guestsâ expectations, experiences and views on hospitality within this unique but growing form of accommodation. In order to ascertain the benefits to the guest, within non commercial homestay it is necessary to review the concept of value for the guest, explore the different forms or dimensions of hospitality, and ascertain levels of reciprocity within the host guest relationship. The paper shows that reciprocity within this hospitality context is asymmetrical and that the sacrifice made by the guest is to the benefit of the host be it non financial
Jennifer Howes, Illustrating India: The Early Colonial Investigations of Colin Mackenzie (1784-1821)(2010)
HSCB, a co-chaperone in mitochondrial iron-sulfur cluster biogenesis, is a novel candidate gene for congenital sideroblastic anemia
Congenital sideroblastic anemias (CSA) are inherited diseases resulting from defects in heme biosynthesis, mitochondrial iron-sulfur cluster (ISC) assembly, or mitochondrial translation. CSAs are characterized by pathological iron deposits in the mitochondria of bone marrow erythroblasts. Recently the Fleming Lab at Boston Childrenâs Hospital has reported mutations in HSPA9, a chaperone involved in ISC assembly, as a cause of nonsyndromic CSA. Here we identified a CSA patient harboring two variants in HSCB, encoding a binding partner of HSPA9: a paternally inherited promoter variant (c-134C>A) and a maternally inherited frameshift variant (T87fs) predicted to result in a truncated protein. To better understand the pathophysiology of these variants, we investigated HSCB protein expression and function in patient-derived skin fibroblasts. Patient fibroblasts show evidence of decreased HSCB protein levels. shRNA targeting HSCB was employed to specifically suppress HSCB expression in the K562 erythroid-like cell line model. shRNA-infected K562 cells presented with perturbed iron homeostasis, a shift to glycolytic energy production, and diminished hemoglobinization. Targeted deletion of murine Hscb is embryonic lethal prior day E7.0. Tissue-specific lox-Cre transgenic lines, including Vav-, EpoR- and Mx-Cre demonstrate that Hscb is essential for hematopoiesis and erythropoiesis. Mutant mice present with hematopoietic defects similar to the index patient. Vav-Cre animals die prior to post-natal day 9 with decreased red cell counts, white cell counts, and decreased hemoglobin compared to wild-type animals. Floxed-null EpoR-Cre animals die before embryonic day 13. To excise Hscb specifically in the hematopoietic compartment of adult animals, conditional Mx-Cre animals were generated through bone marrow transplantation and temporally induced with polyinosinic-polycytidylic acid treatment. The animals died 22 days post-injection with decreased red blood cells, white blood cells, hemoglobin, and an overall decline in hematopoiesis of the bone marrow. These data demonstrate that HSCB is required for erythropoiesis and hematopoiesis and that the patient mutations are a pathogenic cause of CSA
Realism, Antirealism, Irrealism, QuasiâRealism. Gareth Evans Memorial Lecture, Delivered in Oxford on June 2, 1987
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