2,310 research outputs found
Professores/as de coragem: a escola nas disputas sobre o governo dos corpos
O presente artigo é resultado de uma pesquisa de mestrado que analisou como a escola tem se tornado um local de crescentes disputas sobre gênero e sexualidades. As fontes de pesquisas foram grupos focais com professores/as e um breve levantamento bibliográfico para contextualização e fundamentação das análises. A perspectiva teórica dialogou com as noções de discurso, governo e regime de verdade em Michel Foucault, bem como noções de gênero e reconhecimento em Judith Butler. As análises indicaram que a despeito da LGBTfobia presente nas escolas pesquisadas e dos ataques que sofrem professores/as acusados/as de propagar uma suposta “ideologia de gênero”, muitos/as deles/as, assumindo uma posição de coragem, têm sido importantes articuladores/as da resistência ao recrudescimento do discurso antigênero
Development of an Inverted Epifluorescence Microscope for Long-Term Monitoring of Bacteria in Multiplexed Microfluidic Devices
Developing more efficient methods for antibiotic susceptibility testing is a pressing issue
in novel drug development as bacterial resistance to antibiotics becomes increasingly common.
Microfluidic devices have been demonstrated to be powerful platforms that allow researchers to
perform multiplexed antibiotic testing. However, the level of multiplexing within microdevices
is limited, evidencing the need of creating simple, low-cost and high-resolution imaging systems
that can be integrated in antibiotic development pipelines. This paper describes the design and
development of an epifluorescence inverted microscope that enables long-term monitoring of bacteria
inside multiplexed microfluidic devices. The goal of this work is to provide a simple microscope
powerful enough to allow single-cell analysis of bacteria at a reduced cost. This facilitates increasing
the number of microscopes that are simultaneously used for antibiotic testing. We prove that the
designed system is able to accurately detect fluorescent beads of 100 nm, demonstrating comparable
features to high-end commercial microscopes and effectively achieving the resolution required for
single-cell analysis of bacteria. The proposed microscope could thus increase the efficiency in antibiotic
testing while reducing cost, size, weight, and power requirements, contributing to the successful
development of new antibiotic drugs.This work was partially funded by project TEC2016-78052-R from the Spanish Ministry of Economy and PID2019-109820RB-I00 from the Spanish Ministry of Science and Innovation. The research leading to these results received funding from the Innovative Medicines Innitiative 2 Joint Undertaking (JU) under grant agreement No 853989. The JU receives support from the European Union’s Horizon 2020 research and innovation programme and EFPIA and Global Alliance for TB Drug Development non profit organisation, Bill & Melinda Gates Foundation and University of Dundee
Decrease in hepatitis B prevalence among blood donors in Central-West Brazil
BACKGROUND: The aim of the present study was to estimate hepatitis B virus seroprevalence among first-time blood donors in the city of Campo Grande, Mato Grosso do Sul State, in the central-western region of Brazil. FINDINGS: A retrospective analysis of first-time voluntary blood donor records, from January 2010 to December 2010, was conducted at the Hematology Center of Mato Grosso do Sul. The prevalence of the HBsAg and anti-HBc serological markers and their respective 95% confidence intervals were calculated. Chi-square analysis was performed between the seroprevalence previously found in 2001 and the one determined by the current study. Results were considered statistically significant if p < 0.05. Among 8,840 subjects, 269 (3.04%, 95% CI: 2.7-3.4) were positive for HBV markers. The prevalence rate of HBsAg was 0.19% (95% CI: 0.1-0.3) and anti-HBc alone was 2.85% (95% CI: 2.5-3.2). CONCLUSIONS: There was no statistically significant difference regarding gender. However, an important association was observed between HBV infection and older age (p < 0.01). The seroprevalence of HBV infection in first-time blood donors diminished from 2001 to 2010 (p < 0.01). Such decrease suggests an improvement in the recruitment of safe donors, the positive impact of vaccination programs and the decreasing of HBV infection prevalence in the general population
The south of Pozuelos (Jujuy, Argentina) before 1000 A.D. : first archaeological evidences
Este artículo tiene como objetivo dar a conocer las evidencias arqueológicas anteriores al 1.000 d.C. registradas en el sector sur de Pozuelos, las primeras de tal antigüedad reportadas para el área. Estas son escasas en relación a las de épocas posteriores, y consisten en representaciones rupestres, fragmentos cerámicos y material lítico hallado en superficie. No se han detectado hasta el momento ocupaciones en cuevas o aleros, ni arquitectura que puedan asignarse a este período temporal. En base a la información presentada se plantea que la ocupación arcaica de la región habría sido más intensa y extendida que la de época formativa temprana, y que la paulatina disminución en la cantidad de evidencias arqueológicas a medida que avanzamos en el tiempo, se habría acentuado notablemente para el primer milenio de nuestra era. Esto reflejaría un relativo despoblamiento del sur de Pozuelos hasta que, luego del 1.200 d.C., el número de habitantes del área de estudio se habría incrementado exponencialmente.This article aims to present the archaeological evidences prior to 1.000 AD recorded in the area of the South of Pozuelos, the oldest reported until this moment for the region. These are less abundant compared to those of recent times, and include rock art, pottery fragments and lithic materials found on the surface. We have not detected so far neither human occupations in caves or rockshelters, nor architecture that can be assigned to this temporary period. Based on the information presented it is suggested that the archaic occupation of the region would have been more intense and widespread than the early formative presence, and that the gradual decrease in the amount of archaeological evidence as we move forward in time, would have considerably accelerated in the first millennium AD. This would reflect a relative depopulation of the South of Pozuelos until 1.200 AD, when the number of inhabitants in the area of study would have exponentially increased.Fil: Angiorama, Carlos Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucuman. Instituto Superior de Estudios Sociales. Universidad Nacional de Tucuman. Instituto Superior de Estudios Sociales; ArgentinaFil: Argañaraz Fochi, Diego. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo; ArgentinaFil: Becerra, María Florencia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucuman. Instituto Superior de Estudios Sociales. Universidad Nacional de Tucuman. Instituto Superior de Estudios Sociales; ArgentinaFil: del Bel, Ezequiel. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo. Instituto de Arqueología y Museo; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Diaz, Osvaldo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucuman. Instituto Superior de Estudios Sociales. Universidad Nacional de Tucuman. Instituto Superior de Estudios Sociales; ArgentinaFil: Giusta, Marco Nicolás. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Leiton, Diego. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucuman. Instituto Superior de Estudios Sociales. Universidad Nacional de Tucuman. Instituto Superior de Estudios Sociales; ArgentinaFil: Perez Pieroni, María Josefina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucuman. Instituto Superior de Estudios Sociales. Universidad Nacional de Tucuman. Instituto Superior de Estudios Sociales; ArgentinaFil: Rodriguez Curletto, Silvina Vanesa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucuman. Instituto Superior de Estudios Sociales. Universidad Nacional de Tucuman. Instituto Superior de Estudios Sociales; ArgentinaFil: Torres Vega, Lucrecia Marina Raquel. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo; Argentin
Investigación y gestión pesquera como elementos clave para alcanzar la sostenibilidad de la pesquería de chirla Chamelea gallina (Linnaeus, 1758) en las aguas españolas del Golfo de Cádiz
Fondos FEMP Andalucí
Safety of zinc l-carnosine as a Novel food pursuant to Regulation (EU) 2015/2283 and the bioavailability of zinc from this source in the context of Directive 2002/46/EC on food supplements
Requestor: European Commission Question number: EFSA-Q-2020-00263 Correspondence: [email protected] reviewedPublisher PD
Safety of vitamin D2 mushroom powder as a Novel food pursuant to Regulation (EU) 2015/2283 (NF 2019/1471).
Requestor: European Commission Question number: EFSA-Q-2020-00417 Correspondence: [email protected] reviewedPublisher PD
Safety of Vitamin D2 mushroom powder (Agaricus bisporus) as a Novel food pursuant to Regulation (EU) 2015/2283
Acknowledgements: The Panel wishes to thank Petra Gergelova for the support provided to this scientific opinion.Peer reviewedPublisher PD
Drug Survival of Interleukin (IL)‑17 and IL‑23 Inhibitors for the Treatment of Psoriasis: A Retrospective Multi‑country, Multicentric Cohort Study
Background: Drug survival, defined as the length of time from initiation to discontinuation of a given therapy, allows comparisons between drugs, helps to predict patient's likelihood of remaining on a specific treatment, and achieving the best decision for each patient in daily clinical practice.
Objective: The aim of this study was to provide data on drug survival of secukinumab, ixekizumab, brodalumab, guselkumab, tildrakizumab, and risankizumab in a large international cohort, and to identify clinical predictors that might have an impact on the drug survival of these drugs.
Methods: This was a retrospective, multicentric, multi-country study that provides data of adult patients with moderate to severe psoriasis who started treatment with an interleukin (IL)-17 or IL-23 inhibitor between 1 February 2015 and 31 October 2021. Data were collected from 19 distinct hospital and non-hospital-based dermatology centers from Canada, Czech Republic, Italy, Greece, Portugal, Spain, and Switzerland. Kaplan-Meier estimator and proportional hazard Cox regression models were used for drug survival analysis.
Results: A total of 4866 treatment courses (4178 patients)-overall time of exposure of 9500 patient-years-were included in this study, with 3164 corresponding to an IL-17 inhibitor (secukinumab, ixekizumab, brodalumab) and 1702 corresponding to an IL-23 inhibitor (guselkumab, risankizumab, tildrakizumab). IL-23 inhibitors had the highest drug survival rates during the entire study period. After 24 months of treatment, the cumulative probabilities of drug survival were 0.92 (95% confidence interval [CI] 0.89-0.95) for risankizumab, 0.90 (95% CI 0.88-0.92) for guselkumab, 0.80 (95% CI 0.76-0.84) for brodalumab, 0.79 (95% CI 0.76-0.82) for ixekizumab, and 0.75 (95% CI 0.73-0.77) for secukinumab. At 36 months, only guselkumab [0.88 (95% CI 0.85-0.91)], ixekizumab [0.73 (95% CI 0.70-0.76)], and secukinumab [0.67 (95% CI 0.65-0.70)] had more than 40 patients at risk of drug discontinuation. Only two drugs had more than 40 patients at risk of drug discontinuation at 48 months, with ixekizumab demonstrating to have a higher cumulative probability of drug survival [0.71 (95% CI 0.68-0.75)] when compared with secukinumab [0.63 (95% CI 0.60-0.66)]. Secondary failure was the main cause for drug discontinuation. According to the final multivariable model, patients receiving risankizumab, guselkumab, and ixekizumab were significantly less likely to discontinue treatment than those receiving secukinumab. Previous exposure to biologic agents, absent family history of psoriasis, higher baseline body mass index (BMI), and higher baseline Psoriasis Area and Severity Index (PASI) were identified as predictors of drug discontinuation.
Conclusion: The cumulative probability of drug survival of both IL-17 and IL-23 inhibitors was higher than 75% at 24 months, with risankizumab and guselkumab demonstrating to have overall cumulative probabilities ≥ 90%. Biological agent chosen, prior exposure to biologic agents, higher baseline BMI and PASI values, and absence of family history of psoriasis were identified as predictors for drug discontinuation. Risankizumab, guselkumab, and ixekizumab were less likely to be discontinued than secukinumab
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