936 research outputs found

    Does export dependency hurt economic development? Empirical evidence from Singapore

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    A rapid export growth in East Asia was once identified as a source of the sustainable economic development that the region enjoyed. However, the current global recession has turned exports from an economic virtue to a vice. There is a growing awareness that a heavy reliance on exports has caused a serious economic downturn in the region. The present paper chooses Singapore as a case study to examine the relationship between the origin of the East Asian Miracle (i.e. export dependency) and the economic growth. For this purpose, the study employs a causality test developed by Toda and Yamamoto. The empirical findings indicate that despite a negative long-run relationship between export dependency and economic growth, Singapore's heavy reliance on exports does not seem to have produced negative effects on the nation's economic growth. This is because the increase in export dependency was an effect, and not a cause, of the country's output expansion.

    Visceral leishmaniasis patients display altered composition and maturity of neutrophils as well as impaired neutrophil effector functions

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    Immunologically, active visceral leishmaniasis (VL) is characterised by profound immunosuppression, severe systemic inflammatory responses and an impaired capacity to control parasite replication. Neutrophils are highly versatile cells, which play a crucial role in the induction as well as the resolution of inflammation, the control of pathogen replication and the regulation of immune responses. Neutrophil functions have been investigated in human cutaneous leishmaniasis, however, their role in human visceral leishmaniasis is poorly understood. In the present study we evaluated the activation status and effector functions of neutrophils in patients with active VL and after successful anti-leishmanial treatment. Our results show that neutrophils are highly activated and have degranulated; high levels of arginase, myeloperoxidase and elastase, all contained in neutrophils’ granules, were found in the plasma of VL patients. In addition, we show that a large proportion of these cells are immature. We also analysed effector functions of neutrophils that are essential for pathogen clearance and show that neutrophils have an impaired capacity to release neutrophil extracellular traps, produce reactive oxygen species and phagocytose bacterial particles, but not Leishmania parasites. Our results suggest that impaired effector functions, increased activation and immaturity of neutrophils play a key role in the pathogenesis of VL

    Case 3847 - Simopithecus oswaldi Andrews, 1916 (currently Theropithecus oswaldi; Mammalia, Primates, Cercopithecidae), proposed conservation by reversal of precedence with Cynocephalus atlanticus Thomas, 1884

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    The purpose of this application, under Articles 23.9.3 and 81.1 of the Code, is to conserve the usage of the species-group name Simopithecus oswaldi Andrews, 1916 by giving it precedence over its senior subjective synonym Cynocephalus atlanticus Thomas, 1884. Theropithecus is a common to dominant member of the extinct primate community across Africa after 4 million years ago (Jablonski & Frost, 2010) and often co-occurred with extinct humans (Hominini); fossils are also known rarely across Eurasia (Roberts et al., 2014). Most fossil samples are currently included in Theropithecus oswaldi (Andrews, 1916), which is often divided into chrono-geographic subspecies. Cynocephalus atlanticus Thomas, 1884 was not recognized as a member of Theropithecus until 1973, and this nomen has seldom been used, but if it were shown (as seems likely) to be conspecific with Simopithecus oswaldi Andrews, 1916, widespread paleontological usage would be upset. It is thus proposed to give conditional precedence to the later name, which would still permit the use of Theropithecus atlanticus as a distinct species or subspecies of Theropithecus oswaldi. Lectotypes are designated for Simopithecus oswaldi olduvaiensis Leakey & Whitworth, 1958 and Simopithecus oswaldi hopefieldensis Singer, 1962

    Assessment of Handling Practices, Utilization and Concentration of Iodine in Iodized Salt at Wondo Genet town, Southern Ethiopia: A Crossectional Study

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    Iodine deficiency is severe public health problem in Ethiopia. One out of every 1000 population is mentally handicapped due to a congenital thyroid deficiency, and about 50,000 prenatal deaths are occurring annually due to iodine deficiency disorders.nbsp Even though the problem is serious, there were no adequate researches conducted. Therefore, this study focuses on assessment of handling practices of iodized salt and the amount of iodine concentration retained in iodized salts at households and retailers level in Wondo Genet town. The objective of this study was to assess handling practices and concentration of iodine across iodized salt consumption in retailers and households level. Two hundred ninety four households and seventh six retailers were selected by systematic random sampling method for survey using questionnaire and rapid test kit method was used to measure iodine concentration of salt used by the households. The result of this study indicated that iodized salt coverage was found to be 100 % at households and retailers level. Iodine level in the salt examined by iodometric titration, in this study was 4.4 to 70.9 ppm. This indicates the need for further improvement of handling practices of iodized salt. Iodine level in the salt examined by iodometric titration in this study was 60.54% of households and 65.79% retailers salt samples had 15 ndash 40 ppm iodine concentration. This shows that in the iodized salt there is no adequate iodine content in accordance with the nbsprecommendation. Majority of the households 37.4% add iodized salt half way during boiling of the food/coffee. Although the coverage of iodized salt in the study area was high but availability of adequate iodized salt at household level was low as compared to the WHO recommendation.There for this shows that handling practice of iodized salt at the household and retailer level and utilization practice at the household level is poor

    Characteristics and Early Outcomes of Patients With Xpert MTB/RIF-Negative Pulmonary Tuberculosis Diagnosed During Screening Before Antiretroviral Therapy

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    Comparison of the characteristics of HIV-infected patients with Xpert-positive and Xpert-negative tuberculosis and relationship of Xpert status with subsequent clinical and programmatic outcomes

    Assessment of Handling Practices, Utilization and Concentration of Iodine in Iodized Salt at Wondo Genet town, Southern Ethiopia: A Crossectional Study

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    Iodine deficiency is severe public health problem in Ethiopia. One out of every 1000 population is mentally handicapped due to a congenital thyroid deficiency, and about 50,000 prenatal deaths are occurring annually due to iodine deficiency disorders.nbsp Even though the problem is serious, there were no adequate researches conducted. Therefore, this study focuses on assessment of handling practices of iodized salt and the amount of iodine concentration retained in iodized salts at households and retailers level in Wondo Genet town. The objective of this study was to assess handling practices and concentration of iodine across iodized salt consumption in retailers and households level. Two hundred ninety four households and seventh six retailers were selected by systematic random sampling method for survey using questionnaire and rapid test kit method was used to measure iodine concentration of salt used by the households. The result of this study indicated that iodized salt coverage was found to be 100 % at households and retailers level. Iodine level in the salt examined by iodometric titration, in this study was 4.4 to 70.9 ppm. This indicates the need for further improvement of handling practices of iodized salt. Iodine level in the salt examined by iodometric titration in this study was 60.54% of households and 65.79% retailers salt samples had 15 ndash 40 ppm iodine concentration. This shows that in the iodized salt there is no adequate iodine content in accordance with the nbsprecommendation. Majority of the households 37.4% add iodized salt half way during boiling of the food/coffee. Although the coverage of iodized salt in the study area was high but availability of adequate iodized salt at household level was low as compared to the WHO recommendation.There for this shows that handling practice of iodized salt at the household and retailer level and utilization practice at the household level is poor

    Changes in soil properties with long-term organic inputs due to distance from homestead and farm characteristics in southern Ethiopian farmlands

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    Open access via the Elsevier Agreement This original data was collected as part of the project ‘Alternative Carbon Investments in Ecosystems for Poverty Alleviation –below ground versus above ground opportunities for restoration of ecosystem services’ (ALTER), funded with support from the Ecosystem Services for Poverty Alleviation (ESPA) programme (grant no. NE/K010441/1). The analysis of the data and preparation of this paper was undertaken as part of the RALENTIR (Reducing land degradation and carbon loss from Ethiopia's soils to strengthen livelihoods and resilience) project, funded by GCRF (Global Challenges Research Fund) and University of Aberdeen (grant number ES/T003073/1).Peer reviewedPublisher PD

    γδ T cells affect IL-4 production and B-cell tolerance

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    γδ T cells can influence specific antibody responses. Here, we report that mice deficient in individual γδ T-cell subsets have altered levels of serum antibodies, including all major subclasses, sometimes regardless of the presence of αβ T cells. One strain with a partial γδ deficiency that increases IgE antibodies also displayed increases in IL-4–producing T cells (both residual γδ T cells and αβ T cells) and in systemic IL-4 levels. Its B cells expressed IL-4–regulated inhibitory receptors (CD5, CD22, and CD32) at diminished levels, whereas IL-4–inducible IL-4 receptor α and MHCII were increased. They also showed signs of activation and spontaneously formed germinal centers. These mice displayed IgE-dependent features found in hyper-IgE syndrome and developed antichromatin, antinuclear, and anticytoplasmic autoantibodies. In contrast, mice deficient in all γδ T cells had nearly unchanged Ig levels and did not develop autoantibodies. Removing IL-4 abrogated the increases in IgE, antichromatin antibodies, and autoantibodies in the partially γδ-deficient mice. Our data suggest that γδ T cells, controlled by their own cross-talk, affect IL-4 production, B-cell activation, and B-cell tolerance
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