OALib Journal期刊

ISSN: 2333-9721




2019 ( 5 )

2018 ( 73 )

2017 ( 62 )

2016 ( 71 )


匹配条件: “Pedro Porfírio GUIMAR?ES” ,找到相关结果约37571条。
Retail Transformation and Old Retailers: Can They Adapt to Change?
Pedro Porfírio GUIMARES
Journal of Settlements and Spatial Planning , 2012,
Abstract: Over the past decades there have been changes in cities with consequences for its vitality and viability. Recently we have witnessed new changes with the increase of new city centres scattered around the city and surroundings. The retail sector has followed this trend, and can even be considered as one of its anchors, through the construction of large shopping centers. These changes have caused impacts on the retail structure of the once dominant historic city centre. With less capacity to adapt to the changes that have been affecting the sector, the old retailers of these areas have seen their importance shrink. The consumption patterns have been changing quickly and the communication between retailers and consumers have been using new tools. Based on data collected through interviews conducted under REPLACIS project, into three areas of Lisbon, this article aims to confirm whether it’s possible to classify the profile of retailers based on the use of new forms of communication and age stratum. After the analyses of the data we confirm the relation. In terms of retail planning this means that new measures should be implemented in order to revitalize city centres.
Estórias para estudar, histórias sobre o estudar: narrativas auto-regulatórias na sala de aula
Pedro Rosário Sales Luís,Jo?o Trigo,Carina Guimares
Revista Portuguesa de Educa??o , 2003,
Abstract: In the extent of the new curricula of the elementary education, we introduced a project of innovation research developed at the Colégio de Nossa Sra do Rosário and coordinated by the first author of this paper. Self-regulation learning is the framework of this project: As (Des)venturas do Testas". Anchored in socio-cognitive approach rational, we present and analyze the model of the cyclical phases of the self-regulation process, the nature of the learning strategies and some implications for educational practice. The innovative character of this proposal is related to the use of narrative as a way to transmit and discuss approaches to study modeled by a close model. We thought that the adventures and (des)venturas do Testas, a student like them, will allow an easy identification with the problems and resolution proposals discussed, as well as the transfer of the learned and discussed competences at the classroom, for other school domains and their own life.
Thermal rectification in anharmonic chains under an energy-conserving noise
Pedro H. Guimares,Gabriel T. Landi,rio J. de Oliveira
Physics , 2015, DOI: 10.1103/PhysRevE.92.062120
Abstract: Systems in which the heat flux depends on the direction of the flow are said to present thermal rectification. This effect has attracted much theoretical and experimental interest in recent years. However, in most theoretical models the effect is found to vanish in the thermodynamic limit, in disagreement with experiment. The purpose of this paper is to show that the rectification may be restored by including an energy-conserving noise which randomly flips the velocity of the particles with a certain rate $\lambda$. It is shown that as long as $\lambda$ is non-zero, the rectification remains finite in the thermodynamic limit. This is illustrated in a classical harmonic chain subject to a quartic pinning potential (the $\Phi^4$ model) and coupled to heat baths by Langevin equations.
Diabetic and Prediabetic Profile of Patients in a Family Health Care Unit of Salvador, Northeastern Brazil  [PDF]
Jo?o Zallio Coelho, Pedro Juli?o Zallio Coelho, Sanchela Raiane Pereira de Oliveira, Alex Farias Soares, Jacqueline Novais Santana, Paulo Ricardo Bacelar Macedo, Juliana Silveira de Freitas, Danilo Guimares Nogueira Andrade, Mirella Hansen de Almeida, Denise Rosso Tenório Wanderley Rocha, Alberto Krayyem Arbex
Open Journal of Endocrine and Metabolic Diseases (OJEMD) , 2016, DOI: 10.4236/ojemd.2016.61009
Abstract: Diabetes Mellitus is one of the most prevalent diseases in the world. In Brazil, 8.7% of the population between 20 and 79 years of age has diabetes, estimating 11.6 million diabetics. It is commonly associated with other co-morbidities such as hypertension, dyslipidemia and obesity, which put these patients into a high cardiovascular risk profile. This study was performed using the medical records of enrolled population attending a Family Health Unit of Alto do Coqueirinho, Salvador, Northeastern Brazil, consisting of one doctor, one nurse, one dentist, one nursing technician and six community health workers. Medical records and data provided by the system of the Primary Care Information (SIAB), showed total of 2495 patients. Considering the prevalence morbidities in this population, hypertension was present in 9.8% of patients and Type 2 Diabetes in only 3.6%. Since the prevalence of morbidities is the key indicator to the development of public health policies, it seems important a better knowledge on the prevalence rates of diabetes, prediabetes and its co-morbidities of this population. Future plans and projects for health professionals will be based on a consistent medical record.
Use of Corrosion Inhibitor in Solid Form to Prevent Internal Corrosion of Pipelines and Acidification Process  [PDF]
Fernando B. Mainier, Pedro Ivo Canesso Guimares
Journal of Materials Science and Chemical Engineering (MSCE) , 2014, DOI: 10.4236/msce.2014.25001

Use of corrosion inhibitors in solid form promotes the development of a new technique for internal corrosion protection of oil & gas pipelines and operations of oil wells acidification, because the controlled dissolution of the corrosion inhibitor forms a surface on metallic parts, a protective film that prevents or minimizes undesirable reactions to corrosion. In addition, this technique has important social and environmental benefits, ensures the operator has a lower risk of contamination when handling the product, changes the type of industrial packing, facilitates transportation, reduces solvent use and consequently reduces the waste that normally results from the use of inhibitors. The purpose of this article is to present a class of solid corrosion inhibitor tested in the laboratory and offer proposals for its application in industrial pipes such as gas and oil pipelines.

Daily intake of lactating crossbred cows grazing elephant grass rotationally
Aroeira, Luiz Januário Magalh?es;Lopes, Fernando César Ferraz;Soares, Jo?o Paulo Guimares;Deresz, Fermino;Verneque, Rui da Silva;Arcuri, Pedro Braga;Matos, Leovegildo Lopes de;
Pesquisa Agropecuária Brasileira , 2001, DOI: 10.1590/S0100-204X2001000600009
Abstract: the goal of this trial was to estimate the total dry matter (tdmi) and daily pasture dry matter intakes (pdmi) by lactating crossbred holstein - zebu cows grazing elephant grass (pennisetum purpureum schum.) paddocks submitted to different rest periods. three groups of 24 cows were used during two years. the paddocks were grazed during three days at the stocking rate of 4.5 cows/ha. treatments consisted of resting periods of 30 days without concentrate and resting periods of 30, 37.5 and 45 days with 2 kg/cow/day of 20.6% crude protein concentrate. from july to october, pasture was supplemented with chopped sugarcane plus 1% urea. total daily dry matter intake was estimated using the extrusa in vitro dry matter digestibility and the fecal output with chromium oxide. regardless of the treatment the estimated average tdmi was 2.7, 2.9 and 2.9±0.03% and the mean pdmi was 1.9, 2.1 and 2.1±0.03% of body weight in the first, second and third grazing day, respectively (p<0.05). only during the summer pasture quality was the same whichever the grazing day. sugarcane effectively replaced grazing pasture, mainly in the first day when pasture dry matter intake was lowest.
Estudo da influência dos iniciadores na polimeriza??o da 2-fenil-2-oxazolina
Guimares, Pedro Ivo C.;
Polímeros , 2000, DOI: 10.1590/S0104-14282000000400010
Abstract: 2-phenyl-2-oxazoline was polymerized using methyl iodide, methyl tosilate, etherate boron trifluorated, dimethyl, diethyl and di-sec-butyl sulphate as initiators. the main aim of this work was to study the influence of type of initiator on the initiation and propagation processes as well the reactional conditions of these polymerizations. the polymerizations results showed that the nucleophilicity of initiator and different alkyl groups present in the dialkyl sulphates affect the initiation reaction, and influence the propagation species due to the counteranion effect, derived from these initiators. the dialkyl sulphates investigated exhibited good initiator efficiency and their performances were close.
Estudo da influência dos iniciadores na polimeriza o da 2-fenil-2-oxazolina
Guimares Pedro Ivo C.
Polímeros , 2000,
Abstract: 2-Fenil-2-oxazolina foi polimerizada utilizando-se iodeto de metila, tosilato de metila, eterato de trifluoreto de boro e sulfatos de dimetila, dietila e di-sec-butila como iniciadores. Este trabalho visa estudar a influência do tipo de iniciador nos processos de inicia o e propaga o bem como as condi es reacionais dessas polimeriza es. Os resultados das polimeriza es mostraram que a nucleofilicidade do iniciador e os diferentes grupos alquilas presentes nos sulfatos de dialquila afetam a rea o de inicia o e influenciam a propaga o das espécies ativas devido ao efeito do contra-íon derivado desses iniciadores. Os sulfatos de dialquila investigados exibiram uma boa eficiência na inicia o e seus comportamentos foram próximos.
Comparative study of suture and cyanoacrylates in skin closure of rats
Souza, Sandro Cilindro de;Oliveira, Washington Luiz de;Soares, Dario Fernando de Oliveira Santos;Briglia, Carlos Henrique;Athanázio, Paulo Roberto;Cerqueira, Martins Dias de;Guimares, Pedro Hamilton;Carreiro,rio Castro;
Acta Cirurgica Brasileira , 2007, DOI: 10.1590/S0102-86502007000400013
Abstract: purpose: to compare the biocompatibility of ethyl-cyanoacrylate (eca) and octylcyanoacrylate (oca) wound closures to sutures in rat skin. methods: twenty-four male wistar rats were subjected to three incisions which were closed using eca, oca or sutures . rats were divided into four groups which received biopsies on the 3rd, 7th, 14th or 21st post-operative days. necrosis, inflammation, dermatitis, infection, dehiscence, cicatricial enlargement and costs were examined; the histopathology evaluated was epithelialization, deep openings, foreign substance reaction, residues of synthesis material, fibrosis, inflammation, dehiscence and necrosis. results: the tissue adhesives presented the largest dehiscence levels, and eca the lowest cost while the other measures were similar. regarding histopathology, deep openings were more common with oca and granulomas were most frequently obtained with eca. the two tissue adhesives produces less inflammation than the inicial suture from post-operative day 7, while eca and oca cause similar inflammatory reactions. eca did not differ significantly from oca and sutures on other measures. conclusion: eca was well tolerated in this study and did not induce necrosis, allergic reactions or infections, presenting several advantages in relation to oca and sutures, including lower costs and fewer complications.
Managing thyroid cancer without thyroxine withdrawal
Rosário, Pedro Weslley S. do;Vasconcelos, Flavio P.J.;Cardoso, Ludmilla D.;Lauria, Márcio W.;Rezende, Leonardo L.;Padr?o, Eduardo L.;Barroso, álvaro L.;Guimares, Valéria C.;Purisch, Saulo;
Arquivos Brasileiros de Endocrinologia & Metabologia , 2006, DOI: 10.1590/S0004-27302006000100013
Abstract: thyroxine (t4) withdrawal or recombinant tsh is used for the stimulation of thyroglobulin (tg), whole-body scanning (wbs) and iodine-131 treatment in patients with thyroid carcinoma. this study evaluated the t4 dose reduction protocol as an alternative for patients' preparation. fifty-one patients were submitted to total t4 withdrawal for wbs and tg measurement. t4 treatment was then resumed and maintained until tsh reached levels < 0.3 miu/l. the t4 dose was then decreased to 0.8 μg/kg/day and tsh was measured weekly. tg was assayed when tsh was > 30 miu/l. patients diagnosed with the disease upon initial evaluation were treated. we also evaluated the clinical and laboratory changes observed for both preparations. using the reduced dose protocol, tsh levels > 30 miu/l were reached within 6 and 8 weeks in 84.6 and 100% of the patients, respectively. t4 withdrawal was associated with more common symptoms of hypothyroidism and elevation of creatine kinase (ck) and ldl cholesterol. the t4 dose reduction protocol proved to be useful for tg stimulation and ablative therapy, without the complication of severe hypothyroidism or the cost of recombinant tsh.

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