1,829 research outputs found

    GESTÃO DE CUSTOS EM UMA INSTITUIÇÃO DE ENSINO SUPERIOR: ESTUDO DE CASO NA UNISUL

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    Este artigo consiste, objetivamente, em uma análise da percepção dos dirigentes da Universidade do Sul de Santa Catarina - Unisul acerca da gestão de custos da instituição. Para a realização do presente estudo foram entrevistados dez dirigentes da universidade como subsídio para o entendimento do funcionamento da gestão de custos na instituição. Para isso foram estudados quatro centros de custo, ou seja, quatro categorias de análise: Custo com Ensino; Custo com Pesquisa e Extensão; Custo Administrativo; e Custo de Manutenção. Para cada centro de custo foram atribuídas algumas atividades geradoras de custos. Assim, buscou-se a percepção dos dirigentes sobre esta metodologia de análise de custos em instituições de ensino superior. Na análise dos dados foi utilizada a técnica de análise de conteúdo. Os resultados do estudo evidenciam a importância da gestão de custos, principalmente nos últimos anos, onde a quantidade de instituições de ensino superior aumentou significativamente. Conforme os dados encontrados, podem ser destacadas as seguintes conclusões: a categoria de análise custo de manutenção pode ser dissolvida nas demais, não sendo necessário uma categoria especial para esta; elaboração de uma proposta final de modelo de análise da gestão de custos universitária

    Generation and validation of genetic markers for the selection of carioca dry bean genotypes with the slow-darkening seed coat trait

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    Slow darkening (SD) is a trait that helps to maintain a brighter seed coat appearance in certain market classes of dry beans. The aim of this study was to generate new fluorescence-based markers and validate previously identified microsatellite markers for linkage to the SD trait in lines of the carioca market class. Four segregating populations were generated by Embrapa, the Brazilian Agricultural Research Corporation, from crosses between the SD cultivar BRSMG Madrepe´rola and the regular-darkening cultivars BRS Estilo, BRS Cometa, BRS Nota´vel and BRS Sublime. These populations were screened with the simple-sequence markers Pvsd- 1158 and PVM02TC116 and with a TaqManTM marker designed for the single-nucleotide polymorphism (SNP) PvbHLHp12804. A KASP marker was also designed for the PvbHLHp12804 marker for testing on advanced carioca lines developed by the University of Saskatchewan. In the carioca lines developed by Embrapa, PVM02TC116 proved unsuitable for marker-assisted selection (MAS). Both the Pvsd-1158 and PvbHLHp12804 markers were found to be tightly linked to the gene responsible for the SD trait, with genetic distances calculated at 2.8 cM for Pvsd-1158 and 2.0 and 3.1 cM for PvbbHLHp12804, respectively. These markers presented more than 97% of selection efficiency. The genotypic scoring using the PvbHLHp12804 KASP marker was perfectly correlated with the phenotype in all lines of the University of Saskatchewan. The results of this study validates the use of Pvsd-1158 as a gel-based marker for SD in carioca beans. The new fluorescence-based SNP PvbHLHp12804 markers exhibited very tight linkage to SD in carioca and pinto bean lines. These markers will be ideal for MAS for the SD trait in these market classes

    Protective effects of kefir in the angiotensin II-dependent hypertension

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    Recently, we have reported cardiovascular protective effects of the probiotic kefir in a model of primary hypertension. Now, we evaluated the beneficial effects of kefir in a model of secondary hypertension under hyperactivation of the renin-angiotensin-system by partially clipping one kidney artery (2K1C) for 60 days and compared with Sham rats. Maximum levels of arterial pressure were reached 7–14 days post-clipping in both 2K1C and 2K1C-Kefir, but after that time the values were approximately 20% lower in 2K1C-Kefir rats. Also, kefir attenuated the angiotensin converting enzyme activity (intrarenal-40%/plasma-25%) preventing the increase of angiotensin II in both samples. Isolated aortic rings showed an impaired relaxation to acetylcholine in 2K1C (-38%) compared to the Sham group and this difference was attenuated in 2K1C-Kefir rats (~15%). Additional analysis revealed that kefir protected kidney and vascular endothelium against the synergistic oxidative stress/angiotensin II-axis. Thus, kefir is an effective nutraceutical therapy for prevention/treatment of hypertensionThis work was supported by the CNPq/FAPES -Brazil (PRONEX CNPq # 24/2018; Termo Outorga 569/2018); FAPES-Universal (# 21/2018, Termo Outorga 120/2019); FAPES (BPC 552/2018;120/2019) and CNPq (BVN 160990/2019-0; SSM 312056/2018-5, TMCP 309277/2019-1 and ECV 305740/2019-9)S

    Reduced SLIT2 is Associated with Increased Cell Proliferation and Arsenic Trioxide Resistance in Acute Promyelocytic Leukemia

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    Simple Summary In solid tumors, the altered expression of embryonic genes such as the SLIT-ROBO family has been associated with poor prognosis, while little is known about their role in acute myeloid leukemia (AML). Previous studies reported frequent hypermethylation of SLIT2 mediated by the methyltransferase enzyme EZH2 and more recently the PML protein, which are commonly found to be aberrantly expressed in AML. Here, we aim to assess retrospectively the clinical relevance of the SLIT2 gene in acute promyelocytic leukemia, a homogenous subtype of AML. We demonstrated that reduced SLIT2 expression was associated with high leukocyte counts and reduced overall survival in different APL cohorts. STLI2 treatment decreased APL growth, while SLIT2 knockdown accelerated cell cycle progression and proliferation. Finally, reduced expression of SLIT2 in murine APL blasts resulted in fatal leukemia associated with increased leukocyte counts in vivo. These findings demonstrate that SLIT2 can be considered as a prognostic marker in APL, and a potential candidate for clinical studies of a more heterogeneous disease, such as AML. The SLIT-ROBO axis plays an important role in normal stem-cell biology, with possible repercussions on cancer stem cell emergence. Although the Promyelocytic Leukemia (PML) protein can regulate SLIT2 expression in the central nervous system, little is known about SLIT2 in acute promyelocytic leukemia. Hence, we aimed to investigate the levels of SLIT2 in acute promyelocytic leukemia (APL) and assess its biological activity in vitro and in vivo. Our analysis indicated that blasts with SLIT2(high) transcript levels were associated with cell cycle arrest, while SLIT2(low) APL blasts displayed a more stem-cell like phenotype. In a retrospective analysis using a cohort of patients treated with all-trans retinoic acid (ATRA) and anthracyclines, high SLIT2 expression was correlated with reduced leukocyte count (p = 0.024), and independently associated with improved overall survival (hazard ratio: 0.94; 95% confidence interval: 0.92-0.97; p <0.001). Functionally, SLIT2-knockdown in primary APL blasts and cell lines led to increased cell proliferation and resistance to arsenic trioxide induced apoptosis. Finally, in vivo transplant of Slit2-silenced primary APL blasts promoted increased leukocyte count (p = 0.001) and decreased overall survival (p = 0.002) compared with the control. In summary, our data highlight the tumor suppressive function of SLIT2 in APL and its deteriorating effects on disease progression when downregulated

    Didactic Sequence for Teaching Exponential Function

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    This paper presents a methodological proposal for the teaching of exponential function, resulting from the application of a didactic sequence involving exponential function, where evidence of learning and the consolidation and application of mathematical concepts in problem solving were identified and analyzed. The Didactic Engineering of Michèle Artigue (1988) was used as a research methodology. As theoretical contributions that guided and enabled the development of the research, we chose the use of Mathematical Investigation in the classroom; Didactic Sequence in the conception of Zabala (1999); the Articulated Units of Conceptual Reconstruction proposed by Cabral (2017) and assumptions of Vygotsky\u27s theory. A didactic sequence composed of five UARC\u27s was elaborated to work the exponential function, with a view to minimizing the difficulties naturally imposed by the content to be explained. Microgenetic analysis of verbal interactions between teacher and students was used to analyze the results of the application. The results show that the students participating in the experiment showed evidence of learning, recorded during the process, and began to have a good understanding of the concepts and properties related to the topic, in addition to a good performance in carrying out the activities, facts that corroborate the potential of the didactic sequence proposed herein

    Pervasive gaps in Amazonian ecological research

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    Pervasive gaps in Amazonian ecological research

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    Biodiversity loss is one of the main challenges of our time,1,2 and attempts to address it require a clear un derstanding of how ecological communities respond to environmental change across time and space.3,4 While the increasing availability of global databases on ecological communities has advanced our knowledge of biodiversity sensitivity to environmental changes,5–7 vast areas of the tropics remain understudied.8–11 In the American tropics, Amazonia stands out as the world’s most diverse rainforest and the primary source of Neotropical biodiversity,12 but it remains among the least known forests in America and is often underrepre sented in biodiversity databases.13–15 To worsen this situation, human-induced modifications16,17 may elim inate pieces of the Amazon’s biodiversity puzzle before we can use them to understand how ecological com munities are responding. To increase generalization and applicability of biodiversity knowledge,18,19 it is thus crucial to reduce biases in ecological research, particularly in regions projected to face the most pronounced environmental changes. We integrate ecological community metadata of 7,694 sampling sites for multiple or ganism groups in a machine learning model framework to map the research probability across the Brazilian Amazonia, while identifying the region’s vulnerability to environmental change. 15%–18% of the most ne glected areas in ecological research are expected to experience severe climate or land use changes by 2050. This means that unless we take immediate action, we will not be able to establish their current status, much less monitor how it is changing and what is being lostinfo:eu-repo/semantics/publishedVersio
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