Διαχείριση Χωρικών Βάσεων Δεδομένων για την Παρακολούθηση της Εναέριας Κυκλοφορίας

78 σ.Εθνικό Μετσόβιο Πολυτεχνείο--Μεταπτυχιακή Εργασία. Διεπιστημονικό-Διατμηματικό Πρόγραμμα Μεταπτυχιακών Σπουδών (Δ.Π.Μ.Σ.) "Γεωπληροφορική"Ο σκοπός της εργασίας είναι η ανάπτυξη μιας εφαρμογής για την λήψη, αποθήκευση και προβολή ιχνών πολιτικών αεροσκαφών στην Πολεμική Αεροπορία (ΠΑ). Καθώς δεν είναι διαθέσιμα πραγματικά δεδομένα, η λήψη θα γίνεται από έναν εξομοιωτή - γεννήτρια ιχνών. Η αποθήκευση θα γίνεται σε μια γεωχωρική βάση δεδομένων με σκοπό τη δυνατότητα μελλοντικής επιχειρησιακής αξιοποίησης των δεδομένων. Η προβολή θα είναι περιορισμένη σε αεροπορική εικόνα πραγματικού χρόνου, αλλά και κάποιας ορισμένης στιγμής στο παρελθόν. Η ΠΑ διαθέτει ένα πλήθος radar για την ανίχνευση αεροσκαφών στον εναέριο χώρο της Ελλάδας, που συνοδεύεται από το ανάλογο λογισμικό για την παρουσίαση των δεδομένων που συλλέγονται. Στα κέντρα επιχειρήσεων όμως είναι εξαιρετικά χρήσιμο να υπάρχει διαθέσιμη και η αεροπορική εικόνα που διαθέτει η Υπηρεσία Πολιτικής Αεροπορίας (ΥΠΑ), και κατά συνέπεια το ευρύ κοινό, για επιχειρησιακούς σκοπούς. Το λογισμικό που χρησιμοποιείται αυτή τη στιγμή για το σκοπό αυτό, δεν έχει τη δυνατότητα αποθήκευσης των ιχνών. Το κενό αυτό θα προσπαθήσει να καλύψει η παρούσα εργασία.The scope of this thesis is the development of an application that will receive, store and present civil aviation aircraft tracks for the Hellenic Air Force (HAF). Since real data is not available, the application will receive tracks from a simulator - generator of aircraft tracks. The tracks will be stored in a geospatial database so they can be used in the future by HAF. The presentation will be limited in displaying real and past time data to the user, with no further analysis. HAF has a number of radars tracking aircraft in the Greek airspace, accompanied by software capable of presenting the data collected. In operations centers though, is it invaluable to have available the airspace status as the Hellenic Civil Aviation Authority (HCAA) sees it, which is how the general public sees it. The software currently being used for that purpose does not have the capability of storing the data collected in any format. It is exactly this capability that the development of this thesis’ application will attempt to implement.Αλέξανδρος Σ. Γκιζλή

Nutraceutical Supplementation Based on Colostrum as Osteoporosis Treatment: A Pilot Study

Introduction: Naturally based treatments for osteoporosis are currently limited. The purpose of this investigation was to ascertain whether bovine colostrum supplementation can improve bone health in humans. Methods: In total 63 individuals volunteered in a 4-month supplementation project. They were stratified into three groups: 1) healthy post-menopausal women (n = 24); 2) individuals with osteopenia (n = 25); 3) people with osteoporosis (n = 14). Participants of each group were randomly assigned into two experimental sub-groups: a) the bovine colostrum (BC) supplementation (200 mL/day; 5 days/week); b) the placebo sub-group. Before and after the 4-month supplementation, blood samples were obtained and bone mineral density (BMD) was measured. Dual-Energy X-ray Absorptiometry (DXA) was performed on three different anatomical sites: lumbar spine (LS), left femur neck (FN), and left forearm (Arm). Bone health markers (bone alkaline phosphatase (BAP), osteocalcin, C-terminal telopeptide (CTX-I), deoxypyridinoline (DPD)) as well as immunological markers (interleukin 6 (IL6) and immunoglobulin E (IgE)), were assessed in blood serum with enzyme immunoassays, at baseline and 4-months after BC supplementation. Results: No significant changes were found in bone densitometry factors (p > 0.05), for all studied blood parameters and their calculated effect sizes. Conclusions: It is concluded that, as studied herein, BC does not seem to affect human bone health. This pilot study though warrant the need for further research into the efficacy of BC in patients with osteoporosis

Uremic Versus Idiopathic Restless Legs Syndrome: Impact on Aspects Related to Quality of Life

Restless legs syndrome (RLS) affects both the general population and patients with chronic renal failure. Even though it has been suggested that all forms of RLS share a common pathophysi-ology, not much evidence exists on how RLS of different etiology could affect aspects related to quality of life (QoL). The aim of this study was to investigate whether patients with uremic RLS (uRLS) experience lower QoL, mental health, and sleep quality, compared with their idiopathic RLS (iRLS) counterparts. Fifteen iRLS patients, 26 uRLS patients, and 15 age-matched healthy individuals participated in the study. The RLS diagnosis and severity, the depression levels, the perception of sleep, and perceived health-related QoL levels were assessed through validated questionnaires. Sleep status was not different between the two RLS groups. In contrast, the uRLS patients scored higher in RLS symptoms severity, depression, while they scored lower in QoL levels compared with iRLS patients. QoL levels were significantly lower in both RLS groups compared with healthy individuals. In conclusion, the uRLS patients experienced lower QoL levels and more severe RLS symptoms, compared with the idiopathic group, possibly leading to the observed higher depression symptoms score. ASAIO Journal 2012;58:607-611

Epidemiology, impact, and treatment options of restless legs syndrome in end-stage renal disease patients: An evidence-based review

Restless legs syndrome (RLS) (or Willis-Ekbom disease) is a neurological disorder with high prevalence among the end-stage renal disease population. This is one of the most predominant types of secondary RLS, and it is called uremic RLS. Despite the fact that uremic RLS has been less studied compared to idiopathic RLS, recent studies now shed light in many aspects of the syndrome including clinical characteristics, impact, epidemiology, and treatment options. The current review discusses the above topics with special emphasis given on the management of uremic RLS, including the management of symptoms that often appear during a hemodialysis session. Uremic RLS symptoms may be ameliorated by using pharmacological and nonpharmacological treatments. Evidence so far shows that both approaches may be effective in terms of reducing the RLS symptom's severity; nevertheless, more research is needed on the efficiency of treatments for uremic RLS. © 2014 International Society of Nephrology

Current trends in the management of uremic restless legs syndrome: A systematic review on aspects related to quality of life, cardiovascular mortality and survival

Restless legs syndrome (RLS) affects almost one out of three end-stage renal disease patients. This review assesses the current treatment options for uremic RLS and the potential benefits of those treatments on quality of life parameters, cardiovascular mortality and Survival. A systematic review was conducted searching PubMed and Scopus by using the Cochrane and PRISMA guidelines. Fourteen studies met the inclusion criteria in which the international RLS study group criteria were used as the primary diagnostic tool. Both pharmacological and non-pharmacological approaches were found to reduce the severity of uremic RLS symptoms. Only four studies reported changes on aspects related to quality of life while those changes were also associated with health benefits that resulted in reduced cardiovascular risk. The severity of uremic RLS symptoms can be ameliorated by using dopamine agonists and gabapentin, intravenous iron, exercise or supplementation with vitamins C and E, although some of those treatment benefits may be transient. There is a lack of strong evidence regarding the effects of the pharmacological approaches on quality of life and cardiovascular survival and mortality. In contrast exercise has been proven beneficial in both reducing the RLS symptoms' severity score and improving the quality of life. (C) 2014 Elsevier Ltd. All rights reserved