94 research outputs found
Finite Element Modelling of a Deep Excavation in Boston Blue Clay
No full textAbstractThe work investigates the behaviour of a deep excavation that forms part of a wide basement located in Boston, Massachusetts, USA. The glacial marine clay deposit is modelled with a kinematic hardening model for structured soils, its reduced bubble model version and the well-known Modified Cam Clay model. The aim of the work is to assess the effects of the added features of the advanced model, such as small-strain stiffness, structure degradation and anisotropy, on the numerical prediction of the overall behaviour of the excavation. The first part of the paper provides a brief description of the site conditions, ground profile and construction sequences for the case study under consideration. Then, the soil model calibration process using experimental undrained triaxial, self-boring pressuremeter and constant rate of strain consolidation tests is discussed. Finally, the comparison of the predicted wall deflection and ground settlements profiles with observed movements is presented
ALTERATIONS OF GLYCOSAMINOGLYCANS IN VARICOSE VEINS
No full textQUANTITATIVE AND QUALITATIVE ALTERATIONS OF GLYCOSAMINOGLYCANS WERE INCREASED IN THE GREATER SAPHENOUS VEINS TAKEN FROM 20 PATIENTS WITH PRIMARY VENOUS INSUFFICIENCY OF THE LOW EXTREMETIES WHO HAD VENOUS STRIPING. SAMPLES WERE TAKEN FROM THE VARICOSE VEIN, FROM THE MACROSCOPICALLY NORMAL SEGMENT NEAR THE VARICOSE VEIN AND FROM THE INTERMEDIATE SEGMENT. IT WAS FOUND THAT THE LEVELS OF GLYCOSAMINOGLYCANS IN THE VARICOSE VEINS AND IN THE INTERMEDIATE SEGMENTS WERE ELEVATED COMPARED TO THE NORMAL SEGMENTS. QUALITATIVE CHANGES OF THE GLYCOSAMINOGLYCANS WERE NOT FOUND. QUANTITATIVE CHANGES WERE CONFIRMED BY THE HISTOCHEMICAL FINDINGS WITH SPECIAL STRAINS. THE POSSIBLE IMPLICATIONS OF OUR RESULTS ARE DISCUSSED.ΜΕΛΕΤΗΘΗΚΑΝ ΟΙ ΠΟΣΟΤΙΚΕΣ ΚΑΙ ΠΟΙΟΤΙΚΕΣ ΜΕΤΑΒΟΛΕΣ ΤΩΝ ΓΛΥΚΟΖΑΜΙΝΟΓΛΥΚΑΝΩΝ ΣΕ ΜΕΙΖΟΝΕΣ ΣΑΦΗΝΕΙΣ ΦΛΕΒΕΣ ΠΟΥ ΕΛΗΦΘΗΣΑΝ ΑΠΟ 20 ΑΣΘΕΝΕΙΣ ΠΟΥ ΕΠΑΣΧΑΝ ΑΠΟ ΠΡΩΤΟΠΑΘΗ ΦΛΕΒΙΚΗ ΑΝΕΠΑΡΚΕΙΑ ΤΩΝ ΚΑΤΩ ΑΚΡΩΝ ΚΑΙ ΕΙΧΑΝ ΥΠΟΣΤΕΙ ΣΑΦΗΝΕΚΤΟΜΗ. ΕΞΕΤΑΣΘΗΚΑΝ ΤΟΚΙΡΣΩΔΕΣ ΤΜΗΜΑ ΤΗΣ ΦΛΕΒΑΣ, ΤΟ ΜΑΚΡΟΣΚΟΠΙΚΑ ΦΥΣΙΟΛΟΓΙΚΟ ΚΑΙ ΤΟ ΕΝΔΙΑΜΕΣΟ ΤΜΗΜΑ. ΒΡΕΘΗΚΕ ΟΤΙ ΟΙ ΓΛΥΚΟΖΑΜΙΝΟΓΛΥΚΑΝΕΣ ΤΩΝ ΚΙΡΣΩΔΩΝ ΚΑΙ ΤΩΝ ΕΝΔΙΑΜΕΣΩΝ ΤΜΗΜΑΤΩΝ ΠΑΡΟΥΣΙΑΖΟΥΝ ΑΥΞΗΜΕΝΗ ΣΥΓΚΕΝΤΡΩΣΗ ΣΕ ΣΧΕΣΗ ΜΕ ΤΑ ΦΥΣΙΟΛΟΓΙΚΑ ΤΜΗΜΑΤΑ. ΔΕΝ ΚΑΤΑΔΕΙΧΘΗΚΑΝ ΠΟΙΟΤΙΚΕΣ ΔΙΑΦΟΡΕΣ, ΣΥΜΒΑΔΙΖΟΥΝ ΜΕ ΤΑ ΔΕΔΟΜΕΝΑ ΠΟΥ ΠΡΟΚΥΠΤΟΥΝ ΑΠΟ ΤΗΝ ΜΙΚΡΟΣΚΟΠΙΚΗ ΜΕΛΕΤΗ ΤΩΝ ΔΕΙΓΜΑΤΩΝ ΜΕ ΕΙΔΙΚΕΣ ΓΙΑ ΤΗΝ ΑΝΑΔΕΙΞΗ ΤΩΝ ΓΛΥΚΟΖΑΜΙΝΟΓΛΥΚΑΝΩΝ ΧΡΩΣΕΙΣ. ΣΥΖΗΤΟΥΝΤΑΙ ΟΙ ΠΙΘΑΝΕΣ ΔΙΑΣΤΑΣΕΙΣ ΤΩΝ ΕΥΡΗΜΑΤΩΝ ΜΑΣ
The H3 Haplotype of the EPCR Gene Determines High sEPCR Levels in Critically-ill Septic Patients
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Web Based Learning and Off-the-shelf Software: towards a Typology of VLE Interfaces
No full textThis paper: - attempts a classification of Web-based Virtual Learning Environments (VLEs). Criteria for this classification are the content, computer mediated communication and collaboration, how the VLE supports the tasks that course developers/educators have to carry out in setting up a course and how it attempts to provide a student centred, rather than a teacher centred, learning environment. - focuses on three commercially developed VLEs which the author has had experience with as educator and developer/implementer: Lotus LearningSpace, WebCT and FirstClass. It draws from the comparison of the interface of the three to build a typology of VLE interfaces. - touches on instructional design and HCI issues and looks at guidelines and issues to consider when designing VLE interfaces. It is claimed that there are aspects of interface design that enhance interactivity and help students to manage the complexity of VLEs. It points towards the use of flexible and customisable interfaces where the educator can determine those functions and features that enhance the learner experience.Proceedings of the 7th International Conference of European University Information Systems, EUNIS2001, 28.03.2001 - 30.03.2001, Humboldt-Universität zu Berlin, pp 48-5
The Struggle for Representation: An Architect inside Mark Z. Danielewski’s House of Leaves
No full textThis book presents some of these manifold forms. It opens with a short journey into some of the most significant literary spaces and imaginary constructions by writer Alberto Manguel, followed by Arch. Colin Fournier's digression on architectural and urban fictions, its practices and experiences that shaped our contemporaneity. Next is the core of this book, a collection of articles sough to bring together a diversity of individuals, discourses and practices to examine the role of fiction and imagination in architecture and related disciplines, organized into eight thematic chapters, each introduced by a guest author. Ranging widely from history to literary analysis, cinema, graphic, urban, conceptual and literary experiments, the different contributions are, however, highly porous - as the reader will discover - and together they engender new ground for thought and exploration.
Few publications and books deal specifically with architecture from an interdisciplinary perspective, especially from the 'fiction angle'. The editorial scope outlined in this book intends to be perceptive and distinctive. It aims at serving scholars, architects, designers, authors, students and a wider, non-professional audience. It is a contribution to the field and pushes forward research in architectural practice and thought in intriguing and exciting directions, precisely in this moment, in which one may question architecture's inclination to become a pseudo-technical service or mere signature shape-giving; in which one may question urban planning's propensity to produce social failure, one may as well ask if the imagination of fiction is not the ultimate gizmo with which to face a reality that has gone... stranger than fiction
Breast Cancer Response Prediction in Neoadjuvant Chemotherapy Treatment Based on Texture Analysis
No full textAbstractMRI modality is one of the most usual techniques used for diagnosis and treatment planning of breast cancer. The aim of this study is to prove that texture based feature techniques such as co-occurrence matrix features extracted from MRI images can be used to quantify response of tumor treatment. To this aim, we use a dataset composed of two breast MRI examinations for 9 patients. Three of them were responders and six non responders. The first exam was achieved before the initiation of the treatment (baseline). The later one was done after the first cycle of the chemo treatment (control). A set of selected texture parameters have been selected and calculated for each exam. These selected parameters are: Cluster Shade, dissimilarity, entropy, homogeneity. The p-values estimated for the pathologic complete responders pCR and non pathologic complete responders pNCR patients prove that homogeneity (P-value=0.027) and cluster shade (P-value=0.0013) are the more relevant parameters related to pathologic complete responders pCR
Yeast Biofilm as a Bridge between Medical and Environmental Microbiology Across Different Detection Techniques
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Author Correction: Momentum informed muon scattering tomography for monitoring spent nuclear fuels in dry storage cask
No full textΟ Συγγραφέας μέσα στη διήγηση. Η περίπτωση του Βίου της Θεοφανούς
No full textThe Life of Theophano is a fine literary product (end of the ninth century). Although the author maintains his anonymity until the end of the Vita, his role in the narration is of great importance to the interpretation of the Life. He appears constantly behind the words and “winks” at his audience, while at the same time -in the last chapters of the hagiographical text- he and his family become active members of the narration and parallely the only recipients of saint’s miracles. This fact in combination with the glorified portrait of the emperor Leo VI, the presentation of Stylianos Zaoutzes as the savior of the emperor and the absence of any reference to patriarch Euthymios, the spiritual father of the imperial couple, constitute an interesting question. Undoubtedly the author’s special position in the narrative gives answers to the majority of the questions that the Life of Theophano raises
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