282 research outputs found

    Positivismo jurídico, Estado de Derecho y libertad: una propuesta de formulación = Legal Positivism, Rule of Law and Freedom: A Proposal for Formulating

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    Resumen: En el presente trabajo se exploran las posibles vías de conexión entre el positivismo jurídico, el liberalismo clásico y el Estado de Derecho, tarea que siempre se ha visto dificultada por la visión antipositivista de los autores liberales. En tal sentido, se analizan y responden las críticas antipositivistas con el propósito de mostrar la compatibilidad entre el positivismo jurídico y el ideal del Estado de Derecho. Palabras clave: Liberalismo clásico, positivismo jurídico, Estado de Derecho, separación entre derecho y moral, fuentes sociales del derecho.Abstract: This article explores possible connections between legal positivism, classical liberalism and the rule of law, a task that has been obstructed by the anti-positivist vision of liberal authors. In that sense, anti-positivists critics are analyzed and contested with the purpose of showing the compatibility between legal positivism and the rule of law ideal. Keywords: Classical liberalism, legal positivism, rule of law, separation between law and morals, social sources of the law.

    Effect of two enzyme systems on the removal of mucilage from coffee cherry beans (Coffea arabica L.)

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    Objective: To evaluate and compare the percentage of mucilage removal from coffee (Coffea arabica L.) in pulping using two enzyme systems, Celuzyme and Macerex PM. Design/methodology/approach: Seven treatments combinations were evaluated (type of enzyme and concentration level, plus a control) at 30-minute intervals for 3 h. The experimental unit was 0.2 kg of pulped coffee. Results: Results showed when using these enzyme systems (Macerex PM and Celuzyme) the percentage of mucilage removal increased and time was significantly reduced by 3 to 4 h compared to the natural fermentation time of 15 to 20 h. Limitations on study/implications: Effect of two enzyme systems, Macerex PM and Celuzyme, at different concentrations (ppm). Findings/conclusions: The Macerex PM and Celuzyme enzyme systems showed 95% and 84.5% removed mucilage compared to 35% of the control.Objective: To evaluate and compare the percentage of mucilage removal from coffee (Coffea arabica L.) in pulping using two enzyme systems, Celuzyme and Macerex PM. Design/methodology/approach: Seven treatments combinations were evaluated (type of enzyme and concentration level, plus a control) at 30 min intervals for 3 h. The experimental unit was 0.2 kg of pulped coffee. Results: Results showed when using these enzyme systems (Macerex PM and Celuzyme) the percentage of mucilage removal increased and time was significantly reduced by 3 to 4 h compared to the natural fermentation time of 15 to 20 h. Limitations on study/implications: Effect of two enzyme systems, Macerex PM and Celuzyme, at different concentrations (mg L-1). Findings/conclusions: The Macerex PM and Celuzyme enzyme systems showed 95% and 84.5% removed mucilage compared to 35% of the contro

    Protocolo de uso de Albumina Humana al 20%

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    1 recurso en línea 3 p.Se entiende por MEDICAMENTO DE USO RESTRINGIDO a aquel para el que, mediante un procedimiento participativo, multidisciplinar y representativo del hospital, su uso ha sido restringido a determinados grupos de pacientes o a determinadas situaciones clínicas para asegurar una mayor eficacia, evitar efectos adversos, por motivos epidemiológicos o por motivos económicos. El Hospital Nacional de Clínicas (HNC) cuenta con un listado de medicamentos de uso restringido entre los que se encuentra la Albúmina Humana al 20% (AH).Fil: Bustos Fierro, Carolina. Universidad Nacional de Córdoba. Facultad de Ciencias Médicas. Hospital Nacional de Clínicas; Argentina.Fil: Gavelli, María Emilia. Universidad Nacional de Córdoba. Facultad de Ciencias Médicas. Hospital Nacional de Clínicas; Argentina.Fil: Herrera Comoglio, Raquel. Universidad Nacional de Córdoba. Facultad de Ciencias Médicas. Hospital Nacional de Clínicas; Argentina.Fil: Calantoni, Miguel Alberto. Universidad Nacional de Córdoba. Facultad de Ciencias Médicas. Hospital Nacional de Clínicas; Argentina.Fil: Breda, Susana Andrea. Universidad Nacional de Córdoba. Facultad de Ciencias Médicas. Hospital Nacional de Clínicas; Argentina.FIl: Bosio Beatriz. Universidad Nacional de Córdoba. Facultad de Ciencias Médicas. Hospital Nacional de Clínicas; Argentina.Fil: Alesso, Luis. Universidad Nacional de Córdoba. Facultad de Ciencias Médicas. Hospital Nacional de Clínicas; Argentina.Fil: Rueda, María José. Universidad Nacional de Córdoba. Facultad de Ciencias Médicas. Hospital Nacional de Clínicas; Argentina.Fil: Kasparian, Andrés. Universidad Nacional de Córdoba. Facultad de Ciencias Médicas. Hospital Nacional de Clínicas; Argentina.Fil: Zuázaga, Mariano. Universidad Nacional de Córdoba. Facultad de Ciencias Médicas. Hospital Nacional de Clínicas; Argentina.Fil: Soria, Gustavo. Universidad Nacional de Córdoba. Facultad de Ciencias Médicas. Hospital Nacional de Clínicas; Argentina.Fil: Ojeda, Verónica. Universidad Nacional de Córdoba. Facultad de Ciencias Médicas. Hospital Nacional de Clínicas; Argentina.Fil: Arguello, Pablo. Universidad Nacional de Córdoba. Facultad de Ciencias Médicas. Hospital Nacional de Clínicas; Argentina

    Safety and preliminary efficacy data of a novel Casein Kinase 2 (CK2) peptide inhibitor administered intralesionally at four dose levels in patients with cervical malignancies

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    <p>Abstract</p> <p>Background</p> <p>Cervical cancer is now considered the second leading cause of death among women worldwide, and its incidence has reached alarming levels, especially in developing countries. Similarly, high grade squamous intraepithelial lesion (HSIL), the precursor stage for cervical cancer, represents a growing health problem among younger women as the HSIL management regimes that have been developed are not fully effective. From the etiological point of view, the presence of Human Papillomavirus (HPV) has been demonstrated to play a crucial role for developing cervical malignancies, and viral DNA has been detected in 99.7% of cervical tumors at the later stages. CIGB-300 is a novel cyclic synthetic peptide that induces apoptosis in malignant cells and elicits antitumor activity in cancer animal models. CIGB-300 impairs the Casein Kinase (CK2) phosphorylation, by targeting the substrate's phosphoaceptor domain. Based on the perspectives of CIGB-300 to treat cancer, this "first-in-human" study investigated its safety and tolerability in patients with cervical malignancies.</p> <p>Methods</p> <p>Thirty-one women with colposcopically and histologically diagnosed microinvasive or pre-invasive cervical cancer were enrolled in a dose escalating study. CIGB-300 was administered sequentially at 14, 70, 245 and 490 mg by intralesional injections during 5 consecutive days to groups of 7 – 10 patients. Toxicity was monitored daily until fifteen days after the end of treatment, when patients underwent conization. Digital colposcopy, histology, and HPV status were also evaluated.</p> <p>Results</p> <p>No maximum-tolerated dose or dose-limiting toxicity was achieved. The most frequent local events were pain, bleeding, hematoma and erythema at the injection site. The systemic adverse events were rash, facial edema, itching, hot flashes, and localized cramps. 75% of the patients experienced a significant lesion reduction at colposcopy and 19% exhibited full histological regression. HPV DNA was negative in 48% of the previously positive patients. Long term follow-up did not reveal recurrences or adverse events.</p> <p>Conclusion</p> <p>CIGB 300 was safe and well tolerated. This is the first clinical trial where a drug has been used to target the CK2 phosphoaceptor domain providing an early proof-of-principle of a possible clinical benefit.</p

    Explaining Extreme Events of 2012 from a Climate Perspective

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    Attribution of extreme events is a challenging science and one that is currently undergoing considerable evolution. In this paper are 19 analyses by 18 different research groups, often using quite different methodologies, of 12 extreme events that occurred in 2012. In addition to investigating the causes of these extreme events, the multiple analyses of four of the events, the high temperatures in the United States, the record low levels of Arctic sea ice, and the heavy rain in northern Europe and eastern Australia, provide an opportunity to compare and contrast the strengths and weaknesses of the various methodologies. The differences also provide insights into the structural uncertainty of event attribution, that is, the uncertainty that arises directly from the differences in analysis methodology. In these cases, there was considerable agreement between the different assessments of the same event. However, different events had very different causes. Approximately half the analyses found some evidence that anthropogenically caused climate change was a contributing factor to the extreme event examined, though the effects of natural fluctuations of weather and climate on the evolution of many of the extreme events played key roles as well.Peer Reviewe

    Efficacy and safety of acupuncture for the treatment of non-specific acute low back pain: a randomised controlled multicentre trial protocol [ISRCTN65814467]

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    BACKGROUND: Low back pain and its associated incapacitating effects constitute an important healthcare and socioeconomic problem, as well as being one of the main causes of disability among adults of working age. The prevalence of non-specific low back pain is very high among the general population, and 60–70% of adults are believed to have suffered this problem at some time. Nevertheless, few randomised clinical trials have been made of the efficacy and efficiency of acupuncture with respect to acute low back pain. The present study is intended to assess the efficacy of acupuncture for acute low back pain in terms of the improvement reported on the Roland Morris Questionnaire (RMQ) on low back pain incapacity, to estimate the specific and non-specific effects produced by the technique, and to carry out a cost-effectiveness analysis. METHODS/DESIGN: Randomised four-branch controlled multicentre prospective study made to compare semi-standardised real acupuncture, sham acupuncture (acupuncture at non-specific points), placebo acupuncture and conventional treatment. The patients are blinded to the real, sham and placebo acupuncture treatments. Patients in the sample present symptoms of non specific acute low back pain, with a case history of 2 weeks or less, and will be selected from working-age patients, whether in paid employment or not, referred by General Practitioners from Primary Healthcare Clinics to the four clinics participating in this study. In order to assess the primary and secondary result measures, the patients will be requested to fill in a questionnaire before the randomisation and again at 3, 12 and 48 weeks after starting the treatment. The primary result measure will be the clinical relevant improvement (CRI) at 3 weeks after randomisation. We define CRI as a reduction of 35% or more in the RMQ results. DISCUSSION: This study is intended to obtain further evidence on the effectiveness of acupuncture on acute low back pain and to isolate the specific and non-specific effects of the treatment

    IV Foro Internacional de Ganadería Sustentable: conectividad ecosistémica y articulación territorial hacia la Agenda 2030

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    En este espacio plural de análisis y reflexiones, buscamos articular conceptos y posibilidades para los territorios de montaña del centro de México, dando importancia a medios de vida vinculados a la ganadería y su interacción ecosistémica, fundamentado en innovaciones, casos de éxito e iniciativas emblemáticas nacionales e internacionales. La socialización de experiencias es uno de los pilares para transitar hacia la sostenibilidad de los sistemas productivos ganaderos: compartir logros e iniciativas, crear sinergias e identificar vulnerabilidades desde distintos enfoques.GIZ, Agencia de Cooperación Aleman

    Complement component C4 structural variation and quantitative traits contribute to sex-biased vulnerability in systemic sclerosis

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    Altres ajuts: Fondo Europeo de Desarrollo Regional (FEDER), "A way of making Europe".Copy number (CN) polymorphisms of complement C4 play distinct roles in many conditions, including immune-mediated diseases. We investigated the association of C4 CN with systemic sclerosis (SSc) risk. Imputed total C4, C4A, C4B, and HERV-K CN were analyzed in 26,633 individuals and validated in an independent cohort. Our results showed that higher C4 CN confers protection to SSc, and deviations from CN parity of C4A and C4B augmented risk. The protection contributed per copy of C4A and C4B differed by sex. Stronger protection was afforded by C4A in men and by C4B in women. C4 CN correlated well with its gene expression and serum protein levels, and less C4 was detected for both in SSc patients. Conditioned analysis suggests that C4 genetics strongly contributes to the SSc association within the major histocompatibility complex locus and highlights classical alleles and amino acid variants of HLA-DRB1 and HLA-DPB1 as C4-independent signals

    Dendritic cell deficiencies persist seven months after SARS-CoV-2 infection

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    Severe Acute Respiratory Syndrome Coronavirus (SARS-CoV)-2 infection induces an exacerbated inflammation driven by innate immunity components. Dendritic cells (DCs) play a key role in the defense against viral infections, for instance plasmacytoid DCs (pDCs), have the capacity to produce vast amounts of interferon-alpha (IFN-α). In COVID-19 there is a deficit in DC numbers and IFN-α production, which has been associated with disease severity. In this work, we described that in addition to the DC deficiency, several DC activation and homing markers were altered in acute COVID-19 patients, which were associated with multiple inflammatory markers. Remarkably, previously hospitalized and nonhospitalized patients remained with decreased numbers of CD1c+ myeloid DCs and pDCs seven months after SARS-CoV-2 infection. Moreover, the expression of DC markers such as CD86 and CD4 were only restored in previously nonhospitalized patients, while no restoration of integrin β7 and indoleamine 2,3-dyoxigenase (IDO) levels were observed. These findings contribute to a better understanding of the immunological sequelae of COVID-19
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