377 research outputs found

    Mass transference principle:From balls to arbitrary shapes

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    Water Quality of Nitra River, Slovakia - Analysis of Organic Material Pollution

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    Water pollution and water quality management receives increasing attention in eastern European countries. More efficient waste water treatment is needed at the same time when the economy of those countries is not on a stable ground. Thus investigation is needed, how to set priorities and invest funds available to get optimal benefits in water quality management. In this study the role of the dischargers along Nitra river in Slovakia was analyzed based on mass balance of biochemical oxygen demand (BOD). Monthly data from 1990 were used. Because of scarce data and large uncertainties involved, a stochastic approach was taken using probability distributions in propagation of uncertainties. The river was subdivided into twelve stretches and the mass balances of each of them were closed using the BOD equation of the Streeter-Phelps model

    Self-affine sets with fibred tangents

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    Dexamethasone in head and neck cancer patients with microvascular reconstruction : No benefit, more complications

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    Objectives: Glucocorticoids are widely used in association with major surgery of the head and neck to improve postoperative rehabilitation, shorten intensive care unit and hospital stay, and reduce neck swelling. This study aimed to clarify whether peri-and postoperative use of dexamethasone in reconstructive head and neck cancer surgery is associated with any advantages or disadvantages. Materials and methods: This prospective double-blind randomized controlled trial comprised 93 patients. A total dose of 60 mg of dexamethasone was administered to 51 patients over three days peri-and post-operatively. The remaining 42 patients served as controls. The main primary outcome variables were neck swelling, length of intensive care unit and hospital stay, duration of intubation or tracheostomy, and delay to start of possible radiotherapy. Complications were also recorded. Results: No statistical differences emerged between the two groups in any of the main primary outcome variables. However, there were more major complications, especially infections, needing secondary surgery within three weeks of the operation in patients receiving dexamethasone than in control patients (27% vs. 7%, p = 0.012). Conclusions: The use of dexamethasone in oral cancer patients with microvascular reconstruction did not provide a benefit. More major complications, especially infections, occurred in patients receiving dexamethasone. Our data thus do not support the use of peri-and postoperative dexamethasone in oropharyngeal cancer patients undergoing microvascular reconstruction. (C) 2016 Elsevier Ltd. All rights reserved.Peer reviewe

    Impacts of ditch cleaning on hydrological processes in a drained peatland forest

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    Water and nitrogen processes along a typical water flowpath and streamwater exports from a forested catchment and changes after clear-cutting: a modelling study

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    International audienceA two dimensional model, FEMMA, to describe water and nitrogen (N) fluxes within and from a forested first-order catchment (Kangasvaara in Eastern Finland) was constructed by linking the most significant processes affecting the fluxes of water, ammonium, nitrate and dissolved organic nitrogen along a hillslope from the water divide to the stream. The hillslope represents the average flowpath of water in the catchment and the model was used to estimate the N fluxes for a catchment in eastern Finland before and after clear-cutting. The simulated results were in reasonable agreement with the nitrate, dissolved organic N and dissolved total N measurements from the study catchment and with other results in the literature. According to the simulations, the major sinks of N after clear-cutting were immobilisation by soil microbes, uptake by ground vegetation and sorption to soil. These sinks increased downslope from the clear-cut area, indicating the importance of an uncut buffer zone between the stream and the clear-cut area in reducing N exports. The buffer zone retained 76% of the N flux coming from the clear-cut area. Nitrification was a key process in controlling the N export after clear-cutting and N increases were mainly as nitrate. Most of the annual N export took place during the spring flood, when uptake of N by plants was minimal

    Surgically treated ovarian lesions in preadolescent girls

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    Introduction The purpose of this study was to investigate the epidemiology and characteristics of surgically treated ovarian lesions in preadolescent girls. Material and methods This was a retrospective cohort study including all 0- to 11-year-old girls operated at a single center from 1999 to 2016 for ovarian cysts, neoplasms or torsions. Patient charts were reviewed for symptoms, preoperative radiological imaging, operative details and histopathology. Results We identified 78 girls, resulting in a population-based incidence of 4.2/100 000. Infants (n = 44) presented with benign cysts (42/44, 95%, one bilateral), a benign neoplasm (1/44, 2%) and a torsion without other pathology (1/44, 2%). Torsion was found in 25/29 (86%) ovaries with complex cysts and in 3/15 (21%) ovaries with simple cysts in preoperative imaging (P < 0.001). Most infants were symptomless. Lesions in 1- to 11-year-old girls (n = 34) included benign neoplasms (n = 21/34, 62%), malignant neoplasms (n = 5/34, 15%), a cyst with torsion (n = 1/34, 3%) and torsions without other pathology (n = 7/34, 21%). Torsion was more common in benign (17/21, 81%) than in malignant neoplasms (1/5, 20%) (P < 0.020). Ovarian diameter did not differ between ovaries with or without torsion (P = 0.238) or between benign and malignant neoplasms (P = 0.293). The duration of symptoms in lesions with or without torsion was similar. Conclusions The majority of surgically treated ovarian lesions in preadolescent are benign lesions with torsion. Surgery should be ovary-preserving and performed without delay

    The baby box : Enhancing the wellbeing of babies and mothers around the world

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    The baby box is a Finnish social innovation that has captivated interest around the globe. This book highlights the journey of the baby box in over 60 countries, offering a comprehensive overview of the Finnish baby box and its many international adaptations. The story of the baby box begins in post-war Finland, where it evolved from a community-based resource to a nationally-funded and internationally recognized social benefit. The global mapping of the baby box presented in this book expands on this history by exploring the influence of the baby box concept internationally, from refugee camps and high-income countries to remote islands and prisons. Written by an international, multi-disciplinary team of researchers, this book explores the baby box concept from various angles. The diverse and expansive nature of this study makes it an excellent resource for parents, researchers, and anyone generally interested in the baby box concept. Also showcased are the many creative solutions that baby box programme organisers have devised to address context-specific challenges, making it additionally useful as a handbook for policy-makers or professionals developing their own programme.The baby box is a social innovation: a maternity package with baby clothes and other items for expectant mothers to promote the wellbeing of baby and family. In Finland, the baby box (officially called the maternity package) has been a universal benefit since 1949 and is given to all expectant mothers provided they attend antenatal care (ANC). The baby box is still considered to be a valuable social benefit in Finland today, with 95% of first-time mothers choosing the box instead of a cash grant. Although it is known that the baby box concept has been adapted across the world, there is little information available about how these adaptations have been made and for what purpose the boxes are given out. In order to map these programmes, we conducted a research project on baby boxes globally. Based on our findings, this report introduces the baby box concept, its various adaptations, and its possible uses to improve maternal and child health and wellbeing globally. The contents of this report are based on a mapping of 91 baby box programmes and an in-depth study of 29 programmes across different world regions in high-, middle- and low-income countries. These programmes were initiated by governmental bodies, non-profit organisations, United Nations (UN) agencies, hospitals, and academic institutions. Although we use the term baby “box” throughout the report, many programmes used a different container, such as a basket or bag, to package the items. The programmes ranged in scale from small to nationwide and targeted various groups, from specific vulnerable communities to all pregnant women in a country. Programmes set various goals, including reducing infant or maternal mortality, promoting the wellbeing of babies and mothers, easing financial and parenting burden, encouraging the uptake of health and community support services, and strengthening communities and reducing inequalities. They intended to achieve their goals through the practical support provided by the box and items, as well as the conditions attached to claiming the box (e.g. attendance at services) and additional education (e.g. booklets or arranged groups) included in the programme. The impact of the baby box is of timely concern, as governments are increasingly interested in the concept. However, it is difficult to provide an unequivocal answer to the question of whether the baby box “works,” as this depends on the desired outcomes of the programme. In addition, due to resource constraints, few programmes measure the impact of their intervention systematically. In response to this question and these restraints, we outline the potential current contributions of the baby box to the wellbeing of mothers and babies and provide a commentary on its possible future impact. For example, there is emerging evidence globally that baby box programmes can increase the rates of attending ANC or giving birth at a health facility, which may save lives in contexts where these rates are traditionally low. Baby box programmes may also provide psychosocial support for the mother during the vulnerable time of childbirth. Beyond their potential to support families in their everyday lives, baby box programmes may also be valuable in contexts where families have been forced to flee their homes, such as natural disasters or refugee camps. In addition to our findings, we also discuss high-interest topics surrounding the baby box, including safety issues. Ultimately, we intend for our report to serve as an overview of baby box programmes and a foundation for further research, as well as a reference for those interested in the topic or aiming to implement or evaluate a baby box programme themselves. The baby box is not a one-size-fits-all solution to intricate health challenges. However, it offers significant health and social gains, especially for those who are commonly the most vulnerable in communities: mothers and babies.31,00 euroanonPeerReviewedVertaisarvioimato

    ERNICA Consensus Conference on the Management of Patients with Esophageal Atresia and Tracheoesophageal Fistula: Follow-up and Framework

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    Introduction Improvements in care of patients with esophageal atresia (EA) and tracheoesophageal fistula (TEF) have shifted the focus from mortality to morbidity and quality-of-life. Long-term follow-up is essential, but evidence is limited and standardized protocols are scarce. Nineteen representatives of the European Reference Network for Rare Inherited Congenital Anomalies (ERNICA) from nine European countries conducted a consensus conference on the surgical management of EA/TEF. Materials and Methods The conference was prepared by item generation (including items of surgical relevance from the European Society for Pediatric Gastroenterology Hepatology and Nutrition (ESPGHAN)-The North American Society for Pediatric Gastroenterology, Hepatology and Nutrition (NASPGHAN) guidelines on follow-up after EA repair), item prioritization, formulation of a final list containing the domains Follow-up and Framework, and literature review. Anonymous voting was conducted via an internet-based system. Consensus was defined as ≥75% of those voting with scores of 6 to 9. Results Twenty-five items were generated in the domain Follow-up of which 17 (68%) matched with corresponding ESPGHAN-NASPGHAN statements. Complete consensus (100%) was achieved on seven items (28%), such as the necessity of an interdisciplinary follow-up program. Consensus ≥75% was achieved on 18 items (72%), such as potential indications for fundoplication. There was an 82% concordance with the ESPGHAN-NASPGHAN recommendations. Four items were generated in the domain Framework, and complete consensus was achieved on all these items. Conclusion Participants of the first ERNICA conference reached significant consensus on the follow-up of patients with EA/TEF who undergo primary anastomosis. Fundamental statements regarding centralization, multidisciplinary approach, and involvement of patient organizations were formulated. These consensus statements will provide the cornerstone for uniform treatment protocols and resultant optimized patient care
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