The influence of internal and external variables in the export performance

Focusing on export performance and having as a starting point the resource- based view (RBV) and contingency theories, this paper intends to study the effect of both internal and external factors to a firm in the export venture performance. As methodology, a qualitative study was developed – case study – using semi- structured interviews to two managers and one director of marketing and communication of one of the largest cork stoppers manufacturing firm in Portugal. The major findings of this paper are that both internal and external factors have impact in both export marketing strategy adaptation and export venture performance. The more developed the internal resources are, the better is the export venture performance and export marketing adaptation. A better knowledge of external factors has the previously mentioned impact. Also, export marketing strategy adaptation has a positive influence on export venture performance. This research provides a better comprehension of the phenomenon of export performance in a strict research setting (a firm form a small open economy and, only one product). To have a better export performance, managers should invest in their internal resources (such as market and international business knowledge). This paper contributes to extant knowledge of the export performance, in the way that it sheds a light on export performance in small open economies, namely the factors which contributes to a better performance of a firm (within the research setting defined).info:eu-repo/semantics/publishedVersio

Outcomes of Trabeculectomy With and Without Mitomycin C in Pseudoexfoliative Glaucoma Compared With Mitomycin C in Primary Open Angle Glaucoma

The aim of this study was to evaluate the outcomes of trabeculectomy with mitomycin C (MMC) in patients with Pseudoexfoliative Glaucoma (PXG) and compare the results with the outcomes of trabeculectomy without MMC in PXG and with MMC in Primary Open Angle Glaucoma (POAG). Ninety eyes (76 patients) submitted to trabeculectomy were included in a one-year retrospective study. Fifty-eight eyes with PXG were divided into group 1 (28 eyes) and group 2 (30 eyes), with and without MMC application respectively. Then, the group 1 results were compared with 32 eyes with POAG that performed trabeculectomy with MMC (group 3). Main outcome measures were intraocular pressure (IOP), number of IOP lowering medications, rate of bleb failure (encapsulation, flattening and/or vascularization) and the number of eyes submitted to surgical procedures after trabeculectomy (needling, 5-fluorouracil – 5FU or 2nd trabeculectomy). Results revealed that compared to trabeculectomy with MMC in POAG and trabeculectomy with MMC in PXG, trabeculectomy without MMC in PXG leads to higher IOP (preoperative mean ± standard deviation [SD] was 28.6 ± 5.4 mmHg in group 1, 32.2 ± 8.2 mmHg in group 2 and 26.1 ± 6.5 mmHg in group 3; and after one year was 13.9 ± 3.9 mmHg in group 1, 16.1 ± 5.9 mmHg in group 2 and 12.5 ± 4.0 mmHg in group 3); higher number of IOP lowering medications (preoperative mean was 3.1 ± 0.60 in group 1, 2.8 ± 0.81 in group 2 and 3.4 ± 0.76 in group 3; and after one year was 1.1 ± 1.1 in group 1, 1.1 ± 1.0 in group 2 and 0.33 ± 0.89 in group 3); higher prevalence of bleb failure (47% in group 1, 53% in group 2, and 18% in group 3); and increased participation in surgical procedures following trabeculectomy (47% in group 1, 57% in group 2, and 6% in group 3). We concluded that trabeculectomy without MMC in PXG had the worst surgical outcome. Thus, PXG appears to be a potential risk factor for filtration bleb failure. Therefore, it could be considered in surgical protocols of MMC application

A novel spliced fusion of MLL with CT45A2 in a pediatric biphenotypic acute leukemia

Background: Abnormalities of 11q23 involving the MLL gene are found in approximately 10% of human leukemias. To date, nearly 100 different chromosome bands have been described in rearrangements involving 11q23 and 64 fusion genes have been cloned and characterized at the molecular level. In this work we present the identification of a novel MLL fusion partner in a pediatric patient with de novo biphenotypic acute leukemia. Methods: Cytogenetics, fluorescence in situ hybridization (FISH), molecular studies (RT-PCR and LDI-PCR), and bioinformatic sequence analysis were used to characterize the CT45A2 gene as novel MLL fusion partner in pediatric acute leukemia. Results: Fluorescence in situ hybridization of the patient G-banded metaphases demonstrated a cryptic insertion of 11q23 in Xq26.3 involving the MLL gene. Breakpoint fusion analysis revealed that a DNA fragment of 653 kb from 11q23, containing MLL exons 1-9 in addition to 16 other 11q23 genes, was inserted into the upstream region of the CT45A2 gene located at Xq26.3. In addition, a deletion at Xq26.3 encompassing the 3' region of the DDX26B gene (exons 9-16) and the entire CT45A1 gene was identified. RNA analysis revealed the presence of a novel MLL-CT45A2 fusion transcript in which the first 9 exons of the MLL gene were fused in-frame to exon 2 of the CT45A2 gene, resulting in a spliced MLL fusion transcript with an intact open reading frame. The resulting chimeric transcript predicts a fusion protein where the N-terminus of MLL is fused to the entire open reading frame of CT45A2. Finally, we demonstrate that all breakpoint regions are rich in long repetitive motifs, namely LINE/L1 and SINE/Alu sequences, but all breakpoints were exclusively identified outside these repetitive DNA sequences. Conclusion: We have identified CT45A2 as a novel spliced MLL fusion partner in a pediatric patient with de novo biphenotypic acute leukemia, as a result of a cryptic insertion of 11q23 in Xq26.3. Since CT45A2 is the first Cancer/Testis antigen family gene found fused with MLL in acute leukemia, future studies addressing its biologic relevance for leukemogenesis are warranted

Do Cultural ao Criativo: aproximações teórico-empíricas entre turismo, cultura e criatividade

O presente texto, de teor ensaístico, e a partir de revisão bibliográfica,propõe um resgate do percurso teórico-conceitual do que vem sendotratado como turismo criativo. Inicia-se por abordar, em um breve contextohistórico, a tipologia turismo cultural. Segue-se, a análise, abordando aeconomia criativa, campo de práticas que ganhou destaque em estudosacadêmicos encetados a partir dos anos 2000. A relevância dos estudose práticas motivou a inserção de algumas cidades na rede de cidadescriativas da Unesco, o que leva a propor, ainda, a contextualizaçãodessas abordagens no Brasil. Finalmente, retoma-se a concepçãopioneira de turismo criativo, a partir da abordagem de Richards eRaymond (2000) buscando-se outros desdobramentos conceituais e oregistro de algumas experiências, que permitem apontá-lo como umatipologia turística, na qual priorizam-se atividades em que os sujeitospartícipes – tanto visitantes como visitados – procurem incorporar acriatividade e o aprendizado ativo, agregando saberes, percepçõese experiências provenientes dessa interação, como diferencial a sercaptado simbolicamente no processo produtivo

Lactoferrin-based nanoparticles as a vehicle for iron in food applications: development and release profile

This study aims at developing and characterizing bovine lactoferrin (bLf) nanoparticles as an iron carrier. bLf nanoparticles were characterized in terms of size, polydispersity index (PdI), electric charge (-potential), morphology, structure and stability over time. Subsequently, iron release experiments were performed at different pH values (2.0 and 7.0) at 37 °C, in order to understand the release mechanism. bLf (0.2%, w/v) nanoparticles were successfully produced by thermal gelation (75 °C for 20 min). bLf nanoparticles with 35 mM FeCl3 showed an iron binding efficiency value of approximately 20%. The nanoparticles were stable (i.e. no significant variation of size and PdI of the nanoparticles) for 76 days at 4 °C and showed to be stable between 4 and 60 °C and pH 2 and 11. Release experiments at pH 2 showed that iron release could be described by the linear superposition model (explained by Fick and relaxation phenomenon). On the contrary, the release mechanism at pH 7 cannot be described by either Fick or polymer relaxation behaviour. In general, results suggested that bLf nanoparticles could be used as an iron delivery system for future food applications.Joana T. Martins, Ana I. Bourbon and Ana C. Pinheiro acknowledge the Foundation for Science and Technology (FCT) for their fellowships (SFRH/BPD/89992/2012, SFRH/BD/73178/2010 and SFRH/BPD/101181/2014). This study was supported by FCT under the scope of the strategic funding of UID/BIO/04469/2013 unit and COMPETE 2020 (POCI-01-0145-FEDER-006684). This study was also supported by FCT under the scope of the Project RECI/BBB-EBI/0179/2012 (FCOMP-01- 0124-FEDER-027462). The authors would like to acknowledge Cristina Quintelas and Filomena Costa from CEB, University of Minho for helping with AAS and ICP analysis, respectively. Also, the authors would like to thank Rui Fernandes from IBMC, University of Porto for assistance with TEM analysi

Flebite associada a cateter venoso periférico e a administração de medicamentos: análise retrospetiva de incidentes

Background: Phlebitis is a complication associated with peripheral intravenous catheters and an adverse event. Objective: To analyze peripheral intravenous catheter-associated phlebitis incidents associated and drug administration to adult inpatients and their consequences. Methodology: Quantitative, retrospective, descriptive, and cross-sectional study. Non-probabilistic convenience sampling technique was used, with 96 adult patients hospitalized in 2019 selected in the area of medicine at a Hospital Center in Lisbon. The type of phlebitis incident was characterized using the Visual Infusion Phlebitis scale adapted and translated to European Portuguese. Patient harm was categorized according to the International Classification for Patient Safety (ICPS). Results: Of the documented phlebitis incidents, 78% obtained a score 2 on the VIP PT-PT scale. According to the ICPS, 87.5% resulted in mild harm and 12.5% in moderate harm. Antibiotics were the most frequent therapeutic group. Conclusion: Phlebitis has an impact on patient safety. The importance of nursing care is reinforced, with a focus on surveillance and early detection of phlebitis to prevent complications.Enquadramento: A flebite é uma complicação associada à utilização de cateter venoso periférico, classificada como evento adverso. Objetivos: Analisar os incidentes de flebite associada ao cateter venoso periférico e aos medicamentos administrados em doentes adultos internados e as suas consequências. Metodologia: Estudo quantitativo, retrospetivo, descritivo e transversal. Técnica de amostragem não probabilística por conveniência sendo selecionados 96 doentes adultos internados em 2019, na área da medicina de um Centro Hospitalar em Lisboa. O grau de flebite foi avaliado pela escala Visual Infusion Phlebitis Score Português Portugal (VIP PT-PT) traduzida e adaptada para Português Europeu. O dano foi categorizado de acordo com a classificação internacional sobre segurança do doente(CISD). Resultados: Dos incidentes de flebite documentados, 78% classificados com score 2 pela escala VIP PT-PT. Pela CISD, 87,5% resultaram em dano ligeiro e 12,5% em moderado. Os antibióticos foram o grupo terapêutico mais frequente. Conclusão: A flebite tem impacto na segurança do doente. Reforça-se a importância dos cuidados de enfermagem com enfoque na vigilância e deteção precoce de flebite.info:eu-repo/semantics/publishedVersio

Propriedades psicométricas da escala de avaliação das competências no desenvolvimento infantil II - schedule of growing skills II (SGS II): Versão Portuguesa

The second version of the Schedule of Growing Skills (SGS-II) was standardized using a sample of 348 UK children, ages 0 to 5 years. It examined ten psychomotor development areas in 14 age ranges. The Portuguese version of SGS-II was published in 2003, re-edited in 2011, and re-published in 2012, but its psychometric properties remained untested. The aim of this study was to evaluate the psychometric properties of the Portuguese version of SGS-II, comparing them with the results of the UK version. A sample of 364 Portuguese children, 193 boys and 172 girls, with an average age of 34.45 months (±18.62) was assessed with the SGS-II. The results have shown suitable psychometric properties of the SGS-II Portuguese version, adequate for the screening of children development. The internal consistency coefficients ranged from adequate to excellent (≥.7) and similar correlation results among the scale’s versions (English and Portuguese) were positive, high, and significant.A segunda versão da Escala de Avaliação das Competências no Desenvolvimento Infantil Schedule of Growing Skills (SGS-II) foi padronizada no Reino Unido, utilizando uma amostra de 348 crianças, dos 0 aos 5 anos. A escala avalia dez áreas de desenvolvimento psicomotor em 14 faixas etárias. A versão em Português da SGS-II foi publicada em 2003, reeditada em 2011 e em 2012, sem avaliação das qualidades psicométricas. O objetivo deste estudo foi avaliar as qualidades psicométricas da versão portuguesa, comparando- -as com os resultados da versão original. Uma amostra de 364 crianças portuguesas, 193 meninos e 172 meninas, com idade média de 34.45 meses (±18.62) foi avaliada com a SGS-II. Os resultados mostraram que a versão portuguesa da SGS-II tem propriedades psicométricas adequadas ao rastreio do desenvolvimento infantil, com coeficientes de consistência interna adequados e excelentes (≥0.7), sendo semelhantes aos obtidos a partir dos estudos de confiabilidade realizados na versão inglesa

Both SEPT2 and MLL are down-regulated in MLL-SEPT2 therapy-related myeloid neoplasia

<p>Abstract</p> <p>Background</p> <p>A relevant role of septins in leukemogenesis has been uncovered by their involvement as fusion partners in <it>MLL</it>-related leukemia. Recently, we have established the <it>MLL-SEPT2 </it>gene fusion as the molecular abnormality subjacent to the translocation t(2;11)(q37;q23) in therapy-related acute myeloid leukemia. In this work we quantified <it>MLL </it>and <it>SEPT2 </it>gene expression in 58 acute myeloid leukemia patients selected to represent the major AML genetic subgroups, as well as in all three cases of <it>MLL-SEPT2</it>-associated myeloid neoplasms so far described in the literature.</p> <p>Methods</p> <p>Cytogenetics, fluorescence in situ hybridization (FISH) and molecular studies (RT-PCR, qRT-PCR and qMSP) were used to characterize 58 acute myeloid leukemia patients (AML) at diagnosis selected to represent the major AML genetic subgroups: <it>CBFB-MYH11 </it>(n = 13), <it>PML-RARA </it>(n = 12); <it>RUNX1-RUNX1T1 </it>(n = 12), normal karyotype (n = 11), and <it>MLL </it>gene fusions other than <it>MLL-SEPT2 </it>(n = 10). We also studied all three <it>MLL-SEPT2 </it>myeloid neoplasia cases reported in the literature, namely two AML patients and a t-MDS patient.</p> <p>Results</p> <p>When compared with normal controls, we found a 12.8-fold reduction of wild-type <it>SEPT2 </it>and <it>MLL-SEPT2 </it>combined expression in cases with the <it>MLL-SEPT2 </it>gene fusion (p = 0.007), which is accompanied by a 12.4-fold down-regulation of wild-type <it>MLL </it>and <it>MLL-SEPT2 </it>combined expression (p = 0.028). The down-regulation of <it>SEPT2 </it>in <it>MLL-SEPT2 </it>myeloid neoplasias was statistically significant when compared with all other leukemia genetic subgroups (including those with other <it>MLL </it>gene fusions). In addition, <it>MLL </it>expression was also down-regulated in the group of <it>MLL </it>fusions other than <it>MLL-SEPT2</it>, when compared with the normal control group (p = 0.023)</p> <p>Conclusion</p> <p>We found a significant down-regulation of both <it>SEPT2 </it>and <it>MLL </it>in <it>MLL-SEPT2 </it>myeloid neoplasias. In addition, we also found that <it>MLL </it>is under-expressed in AML patients with <it>MLL </it>fusions other than <it>MLL-SEPT2</it>.</p

Surface indicators are correlated with soil multifunctionality in global drylands

1. Multiple ecosystem functions need to be considered simultaneously to manage and protect the several ecosystem services that are essential to people and their environments. Despite this, cost effective, tangible, relatively simple and globally relevant methodologies to monitor in situ soil multifunctionality, that is, the provision of multiple ecosystem functions by soils, have not been tested at the global scale. 2. We combined correlation analysis and structural equation modelling to explore whether we could find easily measured, field‐based indicators of soil multifunctionality (measured using functions linked to the cycling and storage of soil carbon, nitrogen and phosphorus). To do this, we gathered soil data from 120 dryland ecosystems from five continents. 3. Two soil surface attributes measured in situ (litter incorporation and surface aggregate stability) were the most strongly associated with soil multifunctionality, even after accounting for geographic location and other drivers such as climate, woody cover, soil pH and soil electric conductivity. The positive relationships between surface stability and litter incorporation on soil multifunctionality were greater beneath the canopy of perennial vegetation than in adjacent, open areas devoid of vascular plants. The positive associations between surface aggregate stability and soil functions increased with increasing mean annual temperature. 4. Synthesis and applications. Our findings demonstrate that a reduced suite of easily measured in situ soil surface attributes can be used as potential indicators of soil multifunctionality in drylands world‐wide. These attributes, which relate to plant litter (origin, incorporation, cover), and surface stability, are relatively cheap and easy to assess with minimal training, allowing operators to sample many sites across widely varying climatic areas and soil types. The correlations of these variables are comparable to the influence of climate or soil, and would allow cost‐effective monitoring of soil multifunctionality under changing land‐use and environmental conditions. This would provide important information for evaluating the ecological impacts of land degradation, desertification and climate change in drylands world‐wide.This work was funded by the European Research Council ERC Grant agreement 242658 (BIOCOM). CYTED funded networking activities (EPES, Acción 407AC0323). D.J.E. acknowledges support from the Australian Research Council (DP150104199) and F.T.M. support from the European Research Council (BIODESERT project, ERC Grant agreement no 647038), from the Spanish Ministerio de Economía y Competitividad (BIOMOD project, ref. CGL2013-44661-R) and from a Humboldt Research Award from the Alexander von Humboldt Foundation. M.D.-B. was supported by REA grant agreement no 702057 from the Marie Sklodowska-Curie Actions of the Horizon 2020 Framework Programme H2020-MSCA-IF-2016), J.R.G. acknowledges support from CONICYT/FONDECYT no 1160026

In Vitro Antioxidant, Anticoagulant and Antimicrobial Activity and in Inhibition of Cancer Cell Proliferation by Xylan Extracted from Corn Cobs

Xylan is one of most abundant polymer after cellulose. However, its potential has yet to be completely recognized. Corn cobs contain a considerable reservoir of xylan. The aim of this work was to study some of the biological activities of xylan obtained from corn cobs after alkaline extraction enhanced by ultrasonication. Physical chemistry and infrared analyses showed 130 kDa heteroxylan containing mainly xylose:arabinose: galactose:glucose (5.0:1.5:2.0:1.2). Xylan obtained exhibited total antioxidant activity corresponding to 48.5 mg of ascorbic acid equivalent/g of xylan. Furthermore, xylan displayed high ferric chelating activity (70%) at 2 mg/mL. Xylan also showed anticoagulant activity in aPTT test. In antimicrobial assay, the polysaccharide significantly inhibited bacterial growth of Klebsiella pneumoniae. In a test with normal and tumor human cells, after 72 h, only HeLa tumor cell proliferation was inhibited (p < 0.05) in a dose-dependent manner by xylan, reaching saturation at around 2 mg/mL, whereas 3T3 normal cell proliferation was not affected. The results suggest that it has potential clinical applications as antioxidant, anticoagulant, antimicrobial and antiproliferative compounds