879 resultados para Conservative powertheory


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Since 1989, five parliamentary elections have been the stage for the foundation and demise of political parties aspiring to govern the new democratic Polish state. The demise of the AWS before the 2001 elections after ten years of attempts to create a centre-right core party resulted in a new splintering of the right-wing, and the centre-right became again devoid of a pivotal formation. While Eurosceptic parties in average gain 8 percent of the vote, in the 2001 Polish parliamentary elections Eurosceptic parties gained around 20 percent of the vote. In Poland right-wing parties show an unusual propensity for Euroscepticism. The persistence and increased importance of nationalism in Poland, which has prevented the development of a strong Christian democratic party, effectively explains the levels of Euroscepticism on the right. After the autumn 2005 parliamentary elections the national conservative party, Law and Justice, formed a governing coalition with the national Catholic League of Polish Families, creating one of the first Eurosceptic governments. Although this work does not intend to provide a theorisation of party systems development, it shows that the context of European integration fostered nationalists’ divisiveness of, and provoked the splitting of the right the unusual propensity of parties for Euroscepticism makes Poland a paradigmatic case of the kind of conflicts over European integration emerging in Central and Eastern European party systems.

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A crescente utilização de dispositivos móveis com diferentes finalidades é uma realidade. Com estes dispositivos, o utilizador tem a necessidade de aceder e usar dados em tempo real provenientes de diversas fontes. Uma tendência acentuada passa pela incorporação destes dispositivos móveis no vestuário, designados por dispositivos wearable. Segundo a empresa IMS Research, o mercado deste tipo de dispositivos irá aumentar de 14 milhões de unidades registadas no presente ano (2013), para cerca de 171 milhões em 2016, sendo esta previsão conservadora, segundo o analista da IMS Research, Theo Ahadome [15]. A maioria dos dispositivos portáteis está atualmente projetada para questões de saúde, como a monitorização do nível de glicose e batimento cardíaco. O objetivo deste trabalho passa por definir e implementar um dispositivo wearable para aplicações de saúde com um conjunto de funcionalidades para monitorização dos sinais vitais do utilizador. Posteriormente esta base pode ser aplicada em cenários de aplicação distintos, em que todos os dispositivos comunicam entre si, e fazem o reencaminhamento da informação para onde mais interessar. Foi desenhado e implementado hardware e software, para a construção de aplicações capazes de realizar a monitorização do batimento cardíaco, temperatura e humidade corporal, deteção de quedas, qualidade do sono, e chamadas de emergência. Este trabalho aborda os diferentes cenários e aplicações da utilização deste dispositivo, invocando as necessidades específicas de cada situação, sendo estas necessidades trabalhadas e transformadas em características e especificações do sistema. A plataforma de hardware e software permite criar um ecossistema de aplicações, permitindo usar todas as infraestruturas do sistema desenvolvido em futuros cenários de aplicação.

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RESUMO: O presente estudo teve como objectivo avaliar a efectividade de um programa de intervenção de fisioterapia comparativamente ao tratamento conservador (calor húmido, ultra-som e massagem), relativamente à dor e capacidade funcional, no utente idoso com doença osteoarticular do joelho. A amostra foi aleatória, tendo sido seleccionados 20 utentes que respeitaram os critérios de inclusão, e que foram distribuídos aleatoriamente pelos dois grupos de tratamento, 9 no grupo A (experimental) e 11 no grupo B (controle). Todos os utentes deram o seu consentimento informado. Trata-se de um estudo experimental, controlado aleatorizado (RCT). A intervenção em estudo consistiu em 15 sessões de tratamento individuais, efectuadas 3 vezes por semana. O programa terapêutico efectuado pelo grupo A incluiu o tratamento conservador (20 minutos calor húmido, 5 minutos ultra-som (contínuo; 1,5W/cm2) e aproximadamente 10 minutos de massagem local) e o protocolo de exercícios terapêuticos em estudo. Este protocolo de exercícios foi progredindo semanalmente em termos da sua intensidade. Os utentes do Grupo B efectuaram apenas o tratamento conservador (tal como no grupo A). Para avaliar a dor e a capacidade funcional foi utilizado o Questionário knee Injury and Osteoarthritis Outcome Score. A análise dos resultados foi realizada através dos testes Mann-Whitney e Kruskal-Wallis para a comparação entre grupos. Os resultados sugerem não haver diferenças estatisticamente significativos entre os grupos, embora o grupo de controle tenha obtido melhores resultados. O grupo B apresentou uma diminuição da dor de 17,33, comparativamente aos valores de -3,00 no grupo A (p=0,101), e melhoria da capacidade funcional de 13,00, mantendo-se a capacidade funcional igual, no grupo A (0,00) p=0,080). Estes resultados parecem sugerir que não há diferenças significativas entre as duas modalidades de intervenção, realçando a necessidade de continuar a investigar este protocolo de exercícios e a sua efectividade.-----------------ABSTRACT: The aims of this study was to evaluate the effectiveness of a treatment program compared with conventional treatment (post hoots, ultrasound and massage), for the outcomes pain and functional ability in elderly with knee osteoarthritis. The sample was non-probability, and 20 patients have been selected that fulfilled the criteria for inclusion and who were randomly assigned to the two treatment groups, in group A and 11 in group B. All of the patients gave their informed consent. This is an experimental, randomized controlled trial (RCT) with blinded assessment, of comparative design. This study protocol program was carry out in 15 individual treatment sessions, 3x per week. The therapeutic program made by group A consisted of the performance of conservative treatment: 20 minutes of hot packs, 5 minutes of ultrasound (continuous, 1.5 W/cm2) and 10 minutes of massage plus the exercise protocol therapy consisted of: isometric exercises of quadriceps contractions, muscle strengthening for knee and aerobic training. This exercise protocol was progressing every week in terms of its intensity. The users in Group B, only made the conservative treatment (such as in group A). In this study there were evaluated the pain and functional capacity, assessed by questionnaire knee Injury Osteoarthritis Outcome Score. For comparison between groups were used Mann-Whitney and Kruskal-Wallis tests. The results revealed that in group B was that it obtained better results, although they are not statistical significance. The group B show a decrease in pain of 17.33 compared to -3.00 in group A (p = 0.101), and improved capacity functional of 13.00, keeping in group A (0.00) (p = 0.080). However, the differences are not statistically significant. These results show that there are not statistically significant in both treatments, but more studies are needed.

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An ever increasing need for extra functionality in a single embedded system demands for extra Input/Output (I/O) devices, which are usually connected externally and are expensive in terms of energy consumption. To reduce their energy consumption, these devices are equipped with power saving mechanisms. While I/O device scheduling for real-time (RT) systems with such power saving features has been studied in the past, the use of energy resources by these scheduling algorithms may be improved. Technology enhancements in the semiconductor industry have allowed the hardware vendors to reduce the device transition and energy overheads. The decrease in overhead of sleep transitions has opened new opportunities to further reduce the device energy consumption. In this research effort, we propose an intra-task device scheduling algorithm for real-time systems that wakes up a device on demand and reduces its active time while ensuring system schedulability. This intra-task device scheduling algorithm is extended for devices with multiple sleep states to further minimise the overall device energy consumption of the system. The proposed algorithms have less complexity when compared to the conservative inter-task device scheduling algorithms. The system model used relaxes some of the assumptions commonly made in the state-of-the-art that restrict their practical relevance. Apart from the aforementioned advantages, the proposed algorithms are shown to demonstrate the substantial energy savings.

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This paper employs the Lyapunov direct method for the stability analysis of fractional order linear systems subject to input saturation. A new stability condition based on saturation function is adopted for estimating the domain of attraction via ellipsoid approach. To further improve this estimation, the auxiliary feedback is also supported by the concept of stability region. The advantages of the proposed method are twofold: (1) it is straightforward to handle the problem both in analysis and design because of using Lyapunov method, (2) the estimation leads to less conservative results. A numerical example illustrates the feasibility of the proposed method.

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INTRODUCTION: Chylothorax is a rare but serious postoperative condition in children with congenital heart disease. Conventional medical treatment consists of specific long-term dietary modification, and surgical reintervention, such as lymphatic duct ligation, may be indicated in refractory cases. In recent years, an additional conservative treatment, octreotide, a synthetic analog of somatostatin, has been used in management of congenital and postoperative chylothorax. METHODS: The objective of this work was to analyze the efficacy and safety of this treatment for chylothorax after congenital heart surgery. We reviewed the records of sixteen patients with chylothorax after surgery for congenital heart disease between January 1999 and December 2007, and collected the following data: demographic information; type of surgical procedure; onset, duration and management of chylothorax and treatment; and duration of hospital stay. To analyze efficacy we compared these parameters in children receiving conventional treatment only with those receiving octreotide. To analyze safety we compared the adverse effects of both treatments. Octreotide was administered at a dose of 4 to 10 microg/kg/hour, with monitoring of side effects. RESULTS: The incidence of chylothorax in our population was 1.6%. It occurred more often after Glenn and Fontan procedures (8 patients). Octreotide was begun three days after diagnosis of chylothorax and continued for a median of seventeen days (ranging from 4 to 26 days), until complete resolution. Side effects were frequent (in 3 of the 8 patients) but of no clinical relevance. All patients responded to the therapy and there was no indication for further surgical intervention. DISCUSSION AND CONCLUSIONS: Octreotide is safe and effective in the treatment of postoperative chylothorax in children with congenital heart disease. It is a useful adjunctive therapy to the conventional treatment of this complication.

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Venous ulcers in patients with post thrombotic syndromes are complex situations with multiple therapeutic options. They are responsible for high morbidity rates, conservative treatment is very slow and recurrences are very common. Deep venous reconstructive surgery is an alternative, but it should be based on the morphologic and functional aspects of the venous system and only adopted after a very careful study, including venography. The authors describe a morphological "pattern", found in some of these patients and related to the competence of the saphenous femoral junction, rendering possible to perform a valvular transposition. Seven patients with post thrombotic ulcers who have been treated during the last 6 years in which the pattern already described was detect, underwent a transposition of the superficial femoral vein, to the great saphenous vein and when necessary complemented with skyn grafts. Before the operation all patients had ulcers with more than 3 cm in size (3.2-5.4 cm) and with more than 4 months duration (4-16 months). All ulcers healed in the postoperative period (mean time 28 days). All patients have been reevaluated in 2003 and it was diagnosed the thrombosis of two procedures, one of them with the recurrence of the ulcer who healed with conservative treatment. The authors consider this method as a very easy technique to perform, although rarely used, and a valid alternative in a highly selected group of patients.

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Durante um período de 16 anos foram estudados, de forma prospectiva, 202 doentes portadores de insuficiência venosa crónica complicada de úlcera de perna, totalizando 257 úlceras. Este conjunto constitui uma série homogénea, em que foi sempre mantida a mesma orientação diagnóstica e terapêutica, quer médica, quer cirúrgica. Foi definido como objectivo a cura da úlcera em ambulatório, com tratamento conservador. O tratamento cirúrgico definitivo, quando indicado, é preferencialmente executado em diferido, após a cura da úlcera. Dos 202 doentes incluídos inicialmente no estudo, 166 mantiveram-se até à cura ou durante um período de tratamento prolongado. Nos doentes que se mantiveram no estudo foi obtida uma taxa de curas de 91%, o que está acima dos resultados habitualmente reportados na literatura internacional. Salienta-se a importância do controlo directo de todo o tratamento pelo médico responsável.

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Leg ulcers constitute a highly prevalent pathology in society, and are particularly common in the Angiology and Vascular Surgery outpatient clinic. The prevalence of these patients in this Department result from the fact that 70% of them display superficial and/or deep venous insufficiency of the lower limbs. To address this problem and optimize the therapeutic approaches available to the Chronic Leg Ulcer (CLU) patients, the Department of Angiology and Vascular Surgery has created, in March 2005, an appointment specific to CLU patients. An evaluation protocol was developed, including ulcer characterization, standardization of the conservative treatment, followed by surgical intervention, whenever required. The results obtained were evaluated 18 months after the onset of this protocol. Analysis of the results revealed that the majority of the patients responded positively to the new therapeutic approach, with closure of the ulcer in 43% of the patients and a significant improvement detected for an additional 30%. Furthermore, it was observed that a detailed evaluation of these patients should be regarded as a whole, followed by a standardized and targeted approach, resulting in a particularly successful approach on the treatment of this pathology.

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INTRODUCTION: The elderly population admitted for acute myocardial infarction is increasing. This group is not well studied in international trials and is probably treated with a more conservative approach. OBJECTIVES: To evaluate the presentation and treatment of myocardial infarction according to age, particularly in very elderly patients. METHODS: We studied 1242 consecutive patients admitted with acute myocardial infarction, assessing in-hospital, 30-day and one-year mortality during follow-up for each age-group. Patients were divided into four groups according to age: <45 years (7.6%); 45-64 years (43.3%); 65-74 years (23.4%); and ≥75 years (25.7%). RESULTS: Elderly patients had a worse risk profile (except for smoking), more previous history of coronary disease and a worse profile on admission, with the exception of lipid profile, which was more favorable. With regard to treatment of the elderly, although less optimized than in other age-groups, it was significantly better compared to other registries, including for percutaneous coronary angioplasty. Both complications and mortality were worse in the older groups. In elderly patients (≥75 years), adjusted risk of mortality was 4.9-6.3 times higher (p<0.001) than patients in the reference age-group (45-64 years). In these patients, the independent predictors of death were left ventricular function and renal function, use of beta-blockers being a predictor of survival. CONCLUSIONS: Elderly patients represent a substantial proportion of the population admitted with myocardial infarction, and receive less evidenced-based therapy. Age is an independent predictor of short- and medium-term mortality.

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CD30+ cutaneous lymphoproliferative disorders (CLPDs) are usually characterized by a benign clinical course. The prognostic value of cytotoxic markers in these lymphomas has not been evaluated in large series. We describe a case of borderline CD30+ CLPD with cytotoxic phenotype, presenting in a 22-year-old male patient as an ulcer on the forearm. He reported having had similar ulcers on the buttock and thigh that spontaneously regressed over the course of 1 year. The lesion resolved with a single course of clarithromycin; a subsequent lesion, too, responded to clarithromycin, and no recurrences or systemic involvement have been documented in the 9-month follow-up. A conservative approach in the management of CD30+ CLPD is recommended. We believe that the anti-inflammatory and apoptotic effects of clarithromycin on T cells may have hastened the remission process.

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Introduction: Heterotopic pregnancy (HP) is defined as two gestational sacs simultaneously present in two different locations, being the uterus and the fallopian tubes the more common. Sporadic HP is a very rare condition (1:30,000 pregnancies). With the use of medically assisted reproduction the prevalence is significantly higher(1:7,000). Considering spontaneous pregnancy, HP is associated with risk factors, being prior inflammatory pelvic disease the most common. The clinical presentation is similar to that of ectopic pregnancy or spontaneous miscarriage although it is usually a more late diagnosis. Case report: 25 year-old pregnant woman, OI 0000, previously healthy; admitted at the Emergency Department (ED) with acute pelvic pain mainly at the right iliac fossa and moderate vaginal bleeding confirmed by speculum examination. She was hemodynamically stable and the bimanual palpation was painful; no prior medically assisted reproduction technique had been performed. The haemoglobin value was within normal range and the serum β-hCG was 2,763mUI/mL. The ultrasonography at the ED showed an in uterus gestational sac and another one inside the right fallopian tube; in both gestational sacs cardiac activity was absent. HP diagnosis was then established and the patient was admitted at the Obstetrics Ward for surveillance and ultrasonographic/laboratorial reassessment; complete miscarriage of the uterine pregnancy occurred but methotrexate was necessary for the treatment of persistent tubarian pregnancy. Conclusion: When evaluating a pregnant woman with pelvic pain and vaginal bleeding one should always be aware of several differential diagnosis amongst which HP should be considered. If the patient has in uterus viable pregnancy the treatment of the ectopic concomitant gestational sac should be as conservative as possible; methotrexate should not be used in that situation as it leads to uterine pregnancy miscarriage in about one third of the patients.

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Background: The unique clinical syndrome of uterus didelphys, obstructed hemivagina, and ipsilateral renal anomaly is very rare and can be quite difficult to recognize because of the enormous heterogeneity in its clinical presentation. There are few long-term reports of the reproductive performance of women with this syndrome following treatment, or about the location of subsequent pregnancies. Case: A case in which two spontaneous pregnancies occurred alternatively in both hemiuteri: one despite a previous ipsilateral large hematometra and hematocolpos and the other, 8 years after, simultaneously with contralateral hematometra and hematocolpos(because of vaginal restenosis), is reported. Drainage of hematocolpos was performed at 14 weeks of pregnancy with immediate pain relief. Results: Pregnancy proceeded without complications. Eight month after delivery, a vaginoplasty was performed by excising the longitudinal vaginal septum, and marsupializing the vaginal cuff. Conclusions: This case highlights the importance of a correct and early diagnosis of developmental anomalies of the urogenital tract, as well as how a conservative approach in a Mullerian anomaly with unilateral obstruction led to two successful pregnancies occurring alternatively in the unaffected and in the previously blocked side. This is additional information supporting that every effort should be made to preserve the obstructed uterus.

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The integration of wind power in eletricity generation brings new challenges to unit commitment due to the random nature of wind speed. For this particular optimisation problem, wind uncertainty has been handled in practice by means of conservative stochastic scenario-based optimisation models, or through additional operating reserve settings. However, generation companies may have different attitudes towards operating costs, load curtailment, or waste of wind energy, when considering the risk caused by wind power variability. Therefore, alternative and possibly more adequate approaches should be explored. This work is divided in two main parts. Firstly we survey the main formulations presented in the literature for the integration of wind power in the unit commitment problem (UCP) and present an alternative model for the wind-thermal unit commitment. We make use of the utility theory concepts to develop a multi-criteria stochastic model. The objectives considered are the minimisation of costs, load curtailment and waste of wind energy. Those are represented by individual utility functions and aggregated in a single additive utility function. This last function is adequately linearised leading to a mixed-integer linear program (MILP) model that can be tackled by general-purpose solvers in order to find the most preferred solution. In the second part we discuss the integration of pumped-storage hydro (PSH) units in the UCP with large wind penetration. Those units can provide extra flexibility by using wind energy to pump and store water in the form of potential energy that can be generated after during peak load periods. PSH units are added to the first model, yielding a MILP model with wind-hydro-thermal coordination. Results showed that the proposed methodology is able to reflect the risk profiles of decision makers for both models. By including PSH units, the results are significantly improved.

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Pseudoaneurysms of the ascending aorta are a rare complication of cardiac surgery. However, the poor prognosis associated with this condition if untreated makes early diagnosis and treatment important. We present the case of a 66-year-old woman who had undergone mitral valvuloplasty 12 days previously, who was admitted with a diagnosis of new-onset atrial fibrillation. The transthoracic echocardiogram showed a clot in the right atrium and anticoagulation was initiated, followed by antibiotic therapy. After further investigation, the patient was diagnosed with a pseudoaneurysm of the ascending aorta and underwent surgical repair, followed by six weeks of antibiotic therapy. She was readmitted six months later for an abscess of the lower sternum and mediastinum. After a conservative approach with antibiotics and local drainage failed, recurrence of a large pseudoaneurysm compressing the superior vena cava was documented. A third operation was performed to debride the infected tissue and to place an aortic allograft. There were no postoperative complications.