584 research outputs found

    Demandas energéticas en el bailaor norteamericano profesional de flamenco.

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    El objetivo de este estudio ha sido examinar la capacidad aeróbica y anaeróbica de bailaores estadounidenses profesionales de flamenco, con el fin de conocer las necesidades energéticas de esta danza. La muestra estudiada estaba formada por 11 bailaores profesionales de flamenco de Albuquerque, Nuevo Méjico (4 hombres y 7 mujeres). Se han registrado 3 variables: la composición corporal, medida con un adipómetro calipers; el consumo máximo de oxígeno (VO2max) estimado mediante el análisis de gases durante un test de esfuerzo progresivo; y la capacidad anaeróbica, calculada a través del test de Wingate. La edad media de los bailaores fue de 28.45 años (22-44 años) y el tiempo medio que llevaban participando en espectáculos flamencos era de 13.5 años (2-40 años). Respecto a la composición corporal, los participantes presentan datos de porcentaje de grasa corporal (GC) inferior a la media, tanto la muestra masculina, 9.96% GC (5,25-13,09% GC), como la femenina, 16.35% GC (12,96-20,17% GC). La media máxima de capacidad aeróbica fue de 51.63 mlO2•kg–1•min–1 para los hombres (40.7-59,5 mlO2•kg–1•min–1) y 38,78 mlO2•kg–1•min–1 para las mujeres (32.9-43,8 mlO2•kg–1•min–1), en ambos casos por encima de la media. La potencia máxima media registrada en el test de Wingate, fue de 16.2 W/kg (13.7-18.3 W/kg) y 11.3 W/kg (8.6 hasta 14.3 W/kg) para hombres y mujeres, respectivamente, con un índice de fatiga del 65.5% (62-74%) para los hombres y 56.1% (35.2-68.1%) para las mujeres. Estos resultados son superiores, casi en un 25 %, a otros datos publicados sobre deportistas que realizan actividades anaeróbicas. Por lo tanto, los bailaores de flamenco tienen una considerable potencia anaeróbica. Atendiendo en los resultados de este estudio, se sugiere que el entrenamiento de bailaores incluya componentes aeróbicos y anaeróbicos

    Risk of schizophrenia in relation to parental origin and genome-wide divergence

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    Background. Second-generation immigrants have an increased risk of schizophrenia, a finding that still lacks a satisfactory explanation. Various operational definitions of second-generation immigrants have been used, including foreign parental country of birth. However, with increasing global migration, it is not clear that parental country of birth necessarily is informative with regard to ethnicity. We compare two independently collected measures of parental foreign ethnicity, parental foreign country of birth versus genetic divergence, based on genome-wide genotypic data, to access which measure most efficiently captures the increased risk of schizophrenia among second-generation immigrants residing in Denmark. Method. A case-control study covering all children born in Denmark since 1981 included 892 cases of schizophrenia and 883 matched controls. Genetic divergence was assessed using principal component analyses of the genotypic data. Independently, parental foreign country of birth was assessed using information recorded prospectively in the Danish Civil Registration System. We compared incidence rate ratios of schizophrenia associated with these two independently collected measures of parental foreign ethnicity. Results. People with foreign-born parents had a significantly increased risk of schizophrenia [relative risk (RR) 1.94 (95% confidence intervals (CI) 1.41-2.65)]. Genetically divergent persons also had a significant increased risk [RR 2.43 ( 95% CI 1.55-3.82)]. Mutual adjustment of parental foreign country of birth and genetic divergence showed no difference between these measures with regard to their potential impact on the results. Conclusions. In terms of RR of schizophrenia, genetic divergence and parental foreign country of birth are interchangeable entities, and both entities have validity with regard to identifying second-generation immigrants

    Prevalence of sexually transmitted infections among pregnant women with known HIV status in northern Tanzania

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    <p>Abstract</p> <p>Objectives</p> <p>To determine the prevalence of sexually transmitted infections (STIs) and other reproductive tract infections (RTIs) among pregnant women in Moshi, Tanzania and to compare the occurrence of STIs/RTIs among human immunodeficiency virus (HIV)-infected and uninfected women.</p> <p>Methods</p> <p>Pregnant women in their 3<sup>rd </sup>trimester (N = 2654) were recruited from two primary health care clinics between June 2002 and March 2004. They were interviewed, examined and genital and blood samples were collected for diagnosis of STIs/RTIs and HIV.</p> <p>Results</p> <p>The prevalence of HIV, active syphilis and herpes simplex virus – type 2 (HSV-2) were 6.9%, 0.9% and 33.6%, respectively, while 0.5% were positive for <it>N gonorrhoeae</it>, 5.0% for <it>T vaginalis </it>and 20.9% for bacterial vaginosis. Genital tract infections were more prevalent in HIV-seropositive than seronegative women, statistically significant for syphilis (3.3% vs 0.7%), HSV-2 (43.2% vs 32.0%), genital ulcers (4.4% vs 1.4%) and bacterial vaginosis (37.2% vs 19.6%). In comparison with published data, a declining trend for curable STIs/RTIs (syphilis, trichomoniasis and bacterial vaginosis) was noted.</p> <p>Conclusion</p> <p>Rates of STIs and RTIs are still high among pregnant women in Moshi. Where resources allow, routine screening and treatment of STIs/RTIs in the antenatal care setting should be offered. Higher STIs/RTIs in HIV-seropositive women supports the expansion of HIV-counseling and testing services to all centers offering antenatal care. After identification, STIs/RTIs need to be aggressively addressed in HIV-seropositive women, both at antenatal and antiretroviral therapy care clinics.</p

    FOXP2-positive diffuse large B-cell lymphomas exhibit a poor response to R-CHOP therapy and distinct biological signatures.

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    FOXP2 shares partially overlapping normal tissue expression and functionality with FOXP1; an established diffuse large B-cell lymphoma (DLBCL) oncogene and marker of poor prognosis. FOXP2 is expressed in the plasma cell malignancy multiple myeloma but has not been studied in DLBCL, where a poor prognosis activated B-cell (ABC)-like subtype display partially blocked plasma cell differentiation. FOXP2 protein expression was detected in ABC-DLBCL cell lines, and in primary DLBCL samples tumoral FOXP2 protein expression was detected in both germinal center B-cell-like (GCB) and non-GCB DLBCL. In biopsies from DLBCL patients treated with immunochemotherapy (R-CHOP), ≥ 20% nuclear tumoral FOXP2-positivity (n = 24/158) correlated with significantly inferior overall survival (OS: P = 0.0017) and progression-free survival (PFS: P = 0.0096). This remained significant in multivariate analysis against either the international prognostic index score or the non-GCB DLBCL phenotype (P < 0.05 for both OS and PFS). Expression of BLIMP1, a marker of plasmacytic differentiation that is commonly inactivated in ABC-DLBCL, did not correlate with patient outcome or FOXP2 expression in this series. Increased frequency of FOXP2 expression significantly correlated with FOXP1-positivity (P = 0.0187), and FOXP1 co-immunoprecipitated FOXP2 from ABC-DLBCL cells indicating that these proteins can co-localize in a multi-protein complex. FOXP2-positive DLBCL had reduced expression of HIP1R (P = 0.0348), which is directly repressed by FOXP1, and exhibited distinct patterns of gene expression. Specifically in ABC-DLBCL these were associated with lower expression of immune response and T-cell receptor signaling pathways. Further studies are warranted to investigate the potential functional cooperativity between FOXP1 and FOXP2 in repressing immune responses during the pathogenesis of high-risk DLBCL

    The Iowa Homemaker vol.7, no.2

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    Table of Contents Should Women Combine Homemaking and Professions? – Controversal Article, page 1 To Market! To Market! by Helen Theile, page 2 Making Your Bedroom Cozy by Doris Gray Nystrom, page 3 In Londontown by Anna M. Carr, page 3 Taking the Guess Work out of Meat Cookery by Elsie V. McElhinney and Linda Spence Brown, page 4 How to Be Happy Without Oak Floors by Lillian Shaben, page 5 Busy Mother, Read This! by Frances Thomas, page 5 4-H Page, page 6 4-H Page, page 7 Iowa State Home Economics Association Page, page 8 Installment Plan Buying by Gwen Edwards, page 9 Some Fish Geography by Sylvia Pedersen, page 10 Editorial, page 11 Who’s There and Where, page 12 The Inevitable Sandwich by Elizabeth Petersen, page 1

    "Now he walks and walks, as if he didn't have a home where he could eat": food, healing, and hunger in Quechua narratives of madness

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    In the Quechua-speaking peasant communities of southern Peru, mental disorder is understood less as individualized pathology and more as a disturbance in family and social relationships. For many Andeans, food and feeding are ontologically fundamental to such relationships. This paper uses data from interviews and participant observation in a rural province of Cuzco to explore the significance of food and hunger in local discussions of madness. Carers’ narratives, explanatory models, and theories of healing all draw heavily from idioms of food sharing and consumption in making sense of affliction, and these concepts structure understandings of madness that differ significantly from those assumed by formal mental health services. Greater awareness of the salience of these themes could strengthen the input of psychiatric and psychological care with this population and enhance knowledge of the alternative treatments that they use. Moreover, this case provides lessons for the global mental health movement on the importance of openness to the ways in which indigenous cultures may construct health, madness, and sociality. Such local meanings should be considered by mental health workers delivering services in order to provide care that can adjust to the alternative ontologies of sufferers and carers

    Modulation of the virus-receptor interaction by mutations in the V5 loop of feline immunodeficiency virus (FIV) following in vivo escape from neutralising antibody

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    &lt;b&gt;BACKGROUND:&lt;/b&gt; In the acute phase of infection with feline immunodeficiency virus (FIV), the virus targets activated CD4+ T cells by utilising CD134 (OX40) as a primary attachment receptor and CXCR4 as a co-receptor. The nature of the virus-receptor interaction varies between isolates; strains such as GL8 and CPGammer recognise a "complex" determinant on CD134 formed by cysteine-rich domains (CRDs) 1 and 2 of the molecule while strains such as PPR and B2542 require a more "simple" determinant comprising CRD1 only for infection. These differences in receptor recognition manifest as variations in sensitivity to receptor antagonists. In this study, we ask whether the nature of the virus-receptor interaction evolves in vivo.&lt;p&gt;&lt;/p&gt; &lt;b&gt;RESULTS:&lt;/b&gt; Following infection with a homogeneous viral population derived from a pathogenic molecular clone, a quasispecies emerged comprising variants with distinct sensitivities to neutralising antibody and displaying evidence of conversion from a "complex" to a "simple" interaction with CD134. Escape from neutralising antibody was mediated primarily by length and sequence polymorphisms in the V5 region of Env, and these alterations in V5 modulated the virus-receptor interaction as indicated by altered sensitivities to antagonism by both anti-CD134 antibody and soluble CD134.&lt;p&gt;&lt;/p&gt; &lt;b&gt;CONCLUSIONS:&lt;/b&gt; The FIV-receptor interaction evolves under the selective pressure of the host humoral immune response, and the V5 loop contributes to the virus-receptor interaction. Our data are consistent with a model whereby viruses with distinct biological properties are present in early versus late infection and with a shift from a "complex" to a "simple" interaction with CD134 with time post-infection.&lt;p&gt;&lt;/p&gt
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