952 resultados para GDP per head


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At head of title 1902-1939: Ministerio de Fomento.

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Includes index.

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"Errata sheet."

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Title at head of microfiches: Sbornik paleografičeskich snimkov s počerkov drevnego i novogo pisʹma, raznych periodov ...

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Objective: To determine whether isotretinoin (or 13-cis-retinoic acid) decreases the risk of second primary cancers in patients previously treated for cure of head and neck squamous cell carcinoma. Design: Randomized, double-blind, placebo-controlled trial. Setting: Two head and neck multidisciplinary cancer clinics in university teaching hospitals taking cases from 4 to 5 million people in Queensland, Australia, combined to,enter appropriate patients into this trial. Patients: One hundred fifty-one patients with their first head and neck squamous cell carcinoma treated with high expectation for cure and living close by. They were randomized into 3 arms to receive 3 years of treatment. Interventions: Patients took isotretinoin at a high dose (1.0 mg/kg per day) or a moderate dose (0.5 mg/kg per day) or placebo. Group 1 took the high dose for I year and then the moderate dose for 2 years. Group 2 took the moderate dose for 3 years. Group 3 took placebo for 3 years. Main Outcome Measures: The diagnosis of a second primary malignancy of the head and neck, lung, or bladder was regarded as the end point signifying failure of therapy. Issues of drug adverse effect profile and impact on survival were measured. Results: There was no significant difference in the occurrence of second primary disease (P=.90), the recurrence of primary disease (P=.70), or disease-free time (P=.80) between the treatment and nontreatment arms. Numbers were too small to find differences in survival. Conclusion: With evidence that retinoid treatment adversely affects survival of lung cancer and with this drug not significantly decreasing the incidence of second primary tumors of head and neck squamous cell carcinoma, the use of this drug in head and neck cancer patients for second cancer prophylaxis is not indicated.

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Durante i trattamenti radioterapici dei pazienti oncologici testa-collo, le ghiandole parotidee (PGs) possono essere indebitamente irradiate a seguito di modificazioni volumetriche-spaziali inter/intra-frazione causate da fattori quali il dimagrimento, l’esposizione a radiazioni ionizzanti ed il morphing anatomico degli organi coinvolti nelle aree d’irraggiamento. Il presente lavoro svolto presso la struttura di Fisica Medica e di Radioterapia Oncologica dell’A.O.U di Modena, quale parte del progetto di ricerca del Ministero della Salute (MoH2010, GR-2010-2318757) “ Dose warping methods for IGRT and Adaptive RT: dose accumulation based on organ motion and anatomical variations of the patients during radiation therapy treatments ”, sviluppa un modello biomeccanico in grado di rappresentare il processo di deformazione delle PGs, considerandone la geometria, le proprietà elastiche e l'evoluzione durante il ciclo terapeutico. Il modello di deformazione d’organo è stato realizzato attraverso l’utilizzo di un software agli elementi finiti (FEM). Molteplici superfici mesh, rappresentanti la geometria e l’evoluzione delle parotidi durante le sedute di trattamento, sono state create a partire dai contorni dell’organo definiti dal medico radioterapista sull’immagine tomografica di pianificazione e generati automaticamente sulle immagini di setup e re-positioning giornaliere mediante algoritmi di registrazione rigida/deformabile. I constraints anatomici e il campo di forze del modello sono stati definiti sulla base di ipotesi semplificative considerando l’alterazione strutturale (perdita di cellule acinari) e le barriere anatomiche dovute a strutture circostanti. L’analisi delle mesh ha consentito di studiare la dinamica della deformazione e di individuare le regioni maggiormente soggette a cambiamento. Le previsioni di morphing prodotte dal modello proposto potrebbero essere integrate in un treatment planning system per metodiche di Adaptive Radiation Therapy.

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Fresh water wetlands on Hilton Head Island have experienced significant degradation over the past few decades. Fifty per cent of the original fresh water wetlands on the island have been either completely destroyed or significantly altered. This fact, plus the declining water levels experienced periodically, have caused much concern over the importance of the wetlands. A major question concerned the role of the wetlands in the recharge of the local ground water aquifer. The present study was undertaken in order to evaluate the potential of the wetlands for water table recharge.

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Clinical Nutrition for Oncology Patients provides clinicians with the information they need to help cancer survivors and patients make informed choices about their nutrition and improve their short-term and long-term health. This comprehensive resource outlines nutritional management recommendations for care prior to, during, and after treatment and addresses specific nutritional needs and complementary therapies that may be of help to a patient. This book is written by a variety of clinicians who not only care for cancer survivors and their caregivers but are also experts in the field of nutritional oncology.

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The Guide contains the distilled findings from a major, two-year research project to explore those factors considered by industry practitioners to be critical to the successful adoption of ICT, both within their firms and between their firms and their trading partners. In the context of this project Critical Success Factors (CSFs) have been defined as, “Those things that absolutely, positively must be attended to in order to maximise the likelihood of a successful outcome for the stakeholder, defined in the stakeholder’s terms.” The guide includes: o Perceived benefits of ICT use across the head contractors’ sector o Types and levels of ICT used across the sector o Self-assessment tool o CSFs for medium- and high-level ICT users, including o Best Practice Profiles o Action Statements The material contained in this Guide has been generated following a number of principles: o For a given situation there is not a single ‘right answer’, but a number of solutions that have to be evaluated using a range of relevant factors. o Since there are as many solutions as there are ‘solvers’, factors for evaluation will ‘emerge’ from collective wisdom.