CASOS SOBRE A ADOÇÃO DE TECNOLOGIA DE INFORMAÇÃO EM EMPRESAS RURAIS PRODUTORAS DE CAFÉ: RESISTÊNCIAS E LIMITAÇÕES

Devido à dificuldade de introduzir novas tecnologias no setor rural, este estudo buscou identificar os fatores que contribuíram e dificultaram o processo de adoção de sistemas de informações em empresas rurais. Os objetos de estudo foram seis empresas cafeeiras situadas na região Sul de Minas Gerais que adotaram dois sistemas de informação (SI). Utilizaram-se como instrumentos de coleta de dados observações, análise documental e entrevistas com o responsável pela área de informática, gerentes e diretores. Após a comparação dos casos estudados, concluiu-se que: os fatores que comprometeram o processo de adoção foram categorizadas em limitação financeira, baixa formação dos operadores, falta de recursos tecnológicos, incompatibilidade de horários entre instrutor e funcionários, complexidade do software, relação contratual e troca de operadores e instrutor durante a implantação.---------------Due to the difficulty of introducing new technologies in the rural section, this study looked for identify the factors that contributed and hindered the process adoption of information systems in rural companies. The study objects were six coffee companies in the South of Minas Gerais that adopted two information systems (IS). The instruments of data collection was observations, documental analysis and interviews with the responsible for the computer science area, managers and directors. After the comparison of the case studies, it was ended that: the factors that committed the adoption process were classified in financial limitation, low formation of the operators, lack of technological resources, incompatibility of schedules between instructor and employees, complexity of the software, contractual relationship and change of operators and instructor during the implantation.adoção de tecnologias, sistemas de informação, café, gestão de custos, technologies adoption, information systems, coffee, costs management, Agribusiness,

Existence Results for Abstract Partial Neutral Integro-differential Equation with Unbounded Delay

In this paper we study the existence and regularity of mild solutions for a class of abstract partial neutral integro-differential equations with unbounded delay.FONDECYT-CONICYT[1050314]FONDECYT-CONICYT[7050034]Capes, Brasi

DIAMOND OF THE DESERT: THE CASE OF QATAR’S 2022 FIFA WORLD CUP

For the first time in the Arab world, the FIFA World Cup in Qatar 2022 was one of the main drivers for promoting important infrastructural changes in the country, as well as for transforming the image of Qatar in order to make the destination more attractive to foreign tourists. However, despite the great wealth from its Oil & Gas reserves, several social challenges that historically affect the country began to emerge due to greater coverage of the international media, threatening the expectations of positive legacies left on the country\u27s image from the event. Given this context, the case puts the reader in the role of Ahmed Al-Nasr, then Chairman of the Qatar Supreme Committee for Delivery and Legacy, as he faces different pressures made by major international brands sponsoring the event who now see their image threatened by successive controversies that the country has been involved in and they are threatening to withdraw their support and investments. The case is indicated for undergraduate and graduate students of courses in the area of Tourism, Sport Management, and Business interested in discussing topics and concepts related to environmental, social, and governance (ESG) responsibility, management of mega events, international marketing, and country destination image

Cell therapy prevents structural, functional and molecular remodeling of remote non-infarcted myocardium

Background/objectives: Therapy using bone marrow (BM) cells has been tested experimentally and clinically due to the potential ability to restore cardiac function by regenerating lost myocytes or increasing the survival of tissues at risk after myocardial infarction (MI). in this study we aimed to evaluate whether BM-derived mononuclear cell (MNC) implantation can positively influence the post-MI structural remodeling, contractility and Ca(2+)-handling proteins of the remote non-infarcted tissue in rats.Methods and results: After 48 h of MI induction, saline or BM-MNC were injected. Six weeks later, MI scars were slightly smaller and thicker, and cardiac dilatation was just partially prevented by cell therapy. However, the cardiac performance under hemodynamic stress was totally preserved in the BM-MNC treated group if compared to the untreated group, associated with normal contractility of remote myocardium as analyzed in vitro. the impaired post-rest potentiation of contractile force, associated with decreased protein expression of the sarcoplasmic reticulum Ca2+-ATPase and phosphorylated-phospholamban and overexpression of Na(+)/Ca(2+) exchanger, were prevented by BM-MNC, indicating preservation of the Ca(2+) handling. Finally, pathological changes on remodeled remote tissue such as myocyte hypertrophy, interstitial fibrosis and capillary rarefaction were also mitigated by cell therapy.Conclusions: BM-MNC therapy was able to prevent cardiac structural and molecular remodeling after MI, avoiding pathological changes on Ca(2+)-handling proteins and preserving contractile behavior of the viable myocardium, which could be the major contributor to the improvements of global cardiac performance after cell transplantation despite that scar tissue still exists. (C) 2013 Elsevier Ireland Ltd. All rights reserved.Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Universidade Federal de São Paulo, Dept Med, São Paulo, BrazilUniv Estadual Campinas, Dept Struct & Funct Biol, Campinas, SP, BrazilUniv São Paulo, Inst Heart, BR-05508 São Paulo, BrazilUniv São Paulo, Inst Biomed Sci, BR-05508 São Paulo, BrazilUniversidade Federal de São Paulo, Dept Med, São Paulo, BrazilWeb of Scienc

Um relato de caso de síndrome de Cotard com sintoma catatoniformes

Federal University of São Paulo Psychiatry DepartamentUNIFESP, Psychiatry DepartamentSciEL

Self-assembled monolayer formation of pentamers-like molecules onto FCC(111) surfaces: The case of curcuminoids onto Au(111) surface

The adsorption of rigid straight electrically polarized pentamers over a FCC(111) surface is studied. The model was inspired by the deposition of 2-thiophene molecules over the Au(111) surface, which was previously characterized by experimental techniques and simulated under the frame of the density functional theory. We now obtain and report the charge distribution of the molecule which allows to propose a deposition model followed by Monte Carlo simulations over an ad-hoc lattice gas model. We show that for a certain value of the chemical potential there exists anisotropic-nematic phase transition which can explain the formation of a self-assembled monolayer like the one observed in the transmission electron microscopy images. An order parameter is defined to characterize the transition which presents a step-like behavior at a critical chemical potential value. The possible nature of the nematic transition in conjunction with an ergodicity breakdown is discussed as future work by means of statistical physics techniques.Fil: Cisternas, Eduardo. Universidad de La Frontera; ChileFil: Dos Santos Mendez, Gonzalo Joaquín. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Física Aplicada "Dr. Jorge Andrés Zgrablich". Universidad Nacional de San Luis. Facultad de Ciencias Físico Matemáticas y Naturales. Instituto de Física Aplicada "Dr. Jorge Andrés Zgrablich"; Argentina. Universidad de Mendoza. Facultad de Ingeniería; ArgentinaFil: Flores, Marcos. Universidad de Chile; ChileFil: Vogel, Eugenio Emilio. Universidad de La Frontera; ChileFil: Ramirez Pastor, Antonio Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Física Aplicada "Dr. Jorge Andrés Zgrablich". Universidad Nacional de San Luis. Facultad de Ciencias Físico Matemáticas y Naturales. Instituto de Física Aplicada "Dr. Jorge Andrés Zgrablich"; Argentin

Tacrolimus eye drops as monotherapy for vernal keratoconjunctivitis: a randomized controlled trial

Purpose: To assess the efficacy of monotherapy using tacrolimus eye drops versus sodium cromoglycate for the treatment of vernal keratoconjunctivitis (VKC). Methods: Randomized double-masked controlled trial comparing the efficacy of tacrolimus 0.03% eye drops t.i.d. (Group 1) with sodium cromoglycate 4% eye drops t.i.d. (Group 2) for the symptomatic control of VKC at days 0, 15, 30, 45, and 90 of follow-up. Visual acuity, intraocular pressure, and other complications were evaluated to assess safety and side effects. Results: In total, 16 patients were included, with 8 enrolled in each group. Two patients from Group 2 were excluded from the analysis at days 45 and 90 because of corticosteroid use. Most patients were male (81.8%) and presented with limbal VKC (56.3%). There were statistically significant differences in favor of tacrolimus in the following severity scores: itching at day 90 (p = 0.001)foreign body sensation at day 15 (p = 0.042)photophobia at day 30 (p = 0.041)keratitis at day 30 (p = 0.048)and limbal activity at days 15 (p = 0.011), 30 (p = 0.007), and 45 (p = 0.015). No relevant adverse effects were reported, except for a burning sensation with tacrolimus, though this did not compromise treatment compliance. Conclusion: Treatment with tacrolimus was superior to sodium cromoglycate when comparing severity scores for symptoms of itching, foreign body sensation, and photophobia, as well as for signs of limbal inflammatory activity and keratitis.Instituto da Visao (IPEPO), Sao Paulo, BrazilUniv Fed Sao Paulo, Dept Ophthalmol & Visual Sci, Sao Paulo, BrazilUniv Fed Sao Paulo, Dept Ophthalmol & Visual Sci, Sao Paulo, BrazilWeb of Scienc

Comparative analysis of three bait types in deep-set pelagic longline gear in the Equatorial Atlantic Ocean

The choice of bait is one of the fisheries tactics used to increase selectivity for particular target species. The performance of three bait types (mackerel, sardine, squid) was evaluated with a commercial vessel operating in the Equatorial Atlantic Ocean using the deep-set pelagic longline deployment method to target large yellowfin and bigeye tunas. The effect of different factors and covariates on the Capture per Effort Unit - CPUE was evaluated through Generalized Linear Models (GLM). In 121 experimental sets using three bait types, 2385 individuals of the two target species were captured, 1166 yellowfin tuna and 1219 bigeye tuna. The results suggest a preference between bait types for each target species, with the yellowfin tuna being mostly caught by the hooks using squid and bigeye tuna with fish bait mackerel. Stratifying the results for three depth ranges of the hooks, the combination of bait and depth for yellowfin tuna resulted in an increase of catch probability in the intermediary depth layer using mackerel. For bigeye tuna, using mackerel in the intermediary layer resulted in a reduction in the catch rate. Bycatch represented around 11.15% of total captures. These results will provide important information to choosing the most efficient bait for the pelagic longline fishing operation and will help future decisions of fisheries management

Processo de Institucionalização: o Caso da Universidade Federal do Tocantins

oai:ojs.pkp.sfu.ca:article/484Diante da dinamicidade das organizações modernas ameaçadas por mudanças faz-se necessário compreender o processo de institucionalização. O objetivo é estudar o caso da Universidade Federal do Tocantins, considerar como ocorreu o processo de institucionalização e apresentar algumas contribuições da Teoria Institucional para os Estudos Organizacionais. Realizou-se revisão da literatura, abordando as propriedades simbólicas da estrutura, o isomorfismo e os processos de institucionalização. Apresentou-se e discutiu-se a institucionalização ocorrida e aspectos que conduziram a Universidade a adotar suas práticas organizacionais, a condução à semi-institucionalização e aspectos determinantes da institucionalização total. Percebeu-se que o processo descrito na literatura desenvolveu-se na Universidade

PODE O BLUE LASER IMAGING COLABORAR NO DIAGNÓSTICO DIFERENCIAL ENTRE LESÕES NEOPLÁSICAS E NÃO NEOPLÁSICAS COLORRETAIS?

Introduction: Improved endoscopic imaging allows the differential diagnosis of colorectal lesions in real time through the study of the microvasculature. Objective: To review the use of Blue Laser Imaging (BLI) in analyzing the capillary patern for the differential diagnosis between neoplastic and non-neoplastic lesions. Method: This is an integrative review of the literature that collected information published on virtual platforms in Portuguese and English. The search for reading and analysis was carried out on the SciELO – Scientific Electronic Library Online, Google Scholar, Pubmed and Scopus platforms. The descriptors taken from DeCS/MESH were: “Blue laser imaging. Endoscopy. Chromoendoscopy, Colorectal polyps. Magnification” and its English counterparts “Blue laser imaging. Image-enhanced endoscopy. Chromoendoscopy. Colorectal polyps. Magnification” with AND or OR search, considering the title and/or abstract. Only those that had the greatest correlation to the topic were included, and the review was based on them, with reading, in full, of the texts. Results: In the end, 22 articles resulted that made up this review. Conclusion: BLI associated with magnification showed good results in real-time predictive histological diagnosis for colon and rectal lesions.Introdução: Imagem endoscópica aprimorada permite o diagnóstico diferencial das lesões colorretais em tempo real através do estudo da microvasculatura. Objetivo: Revisar o uso do Blue Laser Imaging (BLI) na análise do padrão dos capilares para o diagnóstico diferencial entre lesões neoplásicas e não neoplásicas. Método: Esta é revisão integrativa da literatura  que colheu informações publicadas em plataformas virtuais em português e inglês. A busca para leitura e análise foi realizada nas plataformas SciELO – Scientific Electronic Library Online, Google Scholar, Pubmed e Scopus.  Os descritores retirados do DeCS/MESH foram: “Blue laser imaging. Endoscopia. Cromoendoscopia, Pólipos colorretais. Magnificação” e seus correspondentes em inglês “Blue laser imaging. Image-enhanced endoscopy. Chromoendoscopy. Colorectal polyps. Magnification” com busca AND ou OR, considerando o título e/ou resumo. Foram incluídos somente os que tivessem maior correlação ao tema, e neles foi baseada a revisão com leitura, na íntegra, dos textos. Resultados: Ao final resultaram  22 artigos que compuseram esta revisão. Conclusão: BLI associada à magnificação mostrou bons resultados no diagnóstico histológico preditivo em tempo real para as lesões de cólon e reto