cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Is excisional biopsy warranted after a diagnosis of lobular neoplasia at vacuum-assisted biopsy?
Creators: name: Merino Rasillo, Paula
Publisher: name: European Congress of Radiology
Year: 2015
Subjects: subject: Breast
subject: Percutaneous
subject: Biopsy
subject: Cancer

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: “Lobular neoplasia” is a term that encompasses two entities, atypical lobular hyperplasia (ALH) and lobular carcinoma in situ (LCIS). The cells of both ALH and CLIS are small, uniform, discohesive, and generally lack nucleoli. The degree of...
Comparison of a one-time educational intervention to a teach-to-goal educational intervention for self-management of heart failure: design of a randomized controlled trial
Creators: name: DeWalt, Darren A
name: Weinberger, Morris
name: Broucksou, Kimberly A
name: Pignone, Michael
name: Hawk, Victoria
name: Holmes, George M.
Publisher: name: BioMed Central Ltd
Year: 2009

description: Abstract Background Heart failure (HF) is common, costly and associated with significant morbidity and poor quality of life, particularly for patients with low socioeconomic status. Self-management training has been shown to reduce HF related morbidity and hospitalization rates, but there is uncertainty about how best to deliver such training and what patients benefit. This study compares a single session self-management HF training program against a multiple session training intervention and examines whether their effects differ by literacy level. Methods/Design In this randomized controlled multi-site trial, English and Spanish-speaking patients are recruited from university-affiliated General Internal Medicine and Cardiology clinics at 4 sites across the United States. Eligible patients have HF with New York Heart Association class II-IV symptoms and are prescribed a loop diuretic. Baseline data, including literacy level, are collected at enrollment and follow-up surveys are conducted at 1, 6 and 12 months Upon enrollment, both the control and intervention groups receive the same 40 minute, literacy-sensitive, in-person, HF education session covering the 4 key self-management components of daily self assessment and having a plan, salt avoidance, exercise, and medication adherence. All participants also receive a literacy-sensitive workbook and a digital bathroom scale. After the baseline education was completed, patients are randomly allocated to return to usual care or to receive ongoing education and training. The intervention group receives an additional 20 minutes of education on weight and symptom-based diuretic self-adjustment, as well as periodic follow-up phone calls from the educator over the course of 1 year. These phone calls are designed to reinforce the education, assess participant knowledge of the education and address barriers to success. The primary outcome is the combined incidence of all cause hospitalization and death. Secondary outcomes include HF-related quality of life, HF-related hospitalizations, knowledge regarding HF, self-care behavior, and self-efficacy. The effects of each intervention will be stratified by patient literacy, in order to identify any differential effects. Discussion Enrollment of the proposed 660 subjects will continue through the end of 2009. Outcome assessments are projected to be completed by early 2011. Trial Registration ClinicalTrials.gov http://www.clinicaltrials.gov/ NCT00378950
title: Θεωρητική Μελέτη της γραμμικότητας του ενδογενούς συντελεστή μετατροπής ενέργειας ακτινοβολίας Χ σε οπτική ενέργεια, σε σχέση με φάσματα ακτινογραφικής λυχνίας
title: A theoretical study of the non-linearity of phosphor materials intrinsic conversion efficiency, under X-ray excitation
titleType: AlternativeTitle
Creators: name: Δημητρακόπουλος, Αναστάσιος
Publisher: name: Πανεπιστήμιο Δυτικής Αττικής
Year: 2022
Subjects: Aνιχνευτές ιατρικής απεικόνισης
Mη αναλογικότητα
Σπινθηριστές
Θεωρητική μελέτη

description: Είναι επιτακτική ανάγκη οι σπινθηριστές να έχουν υψηλή ενεργειακή ανάλυση ώστε να ανιχνεύουν τις ακτίνες Χ αλλά και όταν απορροφούν ενέργεια ακτινών Χ να παρουσιάζουν γραμμική απόκριση σε σχέση με την παραγωγή φωτονίων. Στην βιβλιογραφία έχει καταγραφεί μια μη γραμμικότητα στην παραγωγή οπτικών φωτονίων των σπινθηριστών. Κάποια από αυτά τα αίτια μπορεί να είναι η ενέργεια που απορροφά ο κρύσταλλος, οι εγγενείς του ιδιότητες, οι τοπικές ανομοιογένειες του υλικού ή οι Κ- αιχμές του σπινθηριστή. Για την διερεύνηση αυτού του φαινομένου χρησιμοποιήσαμε ένα θεωρητικό μοντέλο, που έχει αναλυθεί στην βιβλιογραφία, για την εύρεση της Απόλυτης φωτεινής απόδοσης (ΑΕ) για 3 υλικά φωσφόρων (Y2O2S:Eu, Lu2O3:Eu, ZnSCd:Ag). Για τα υλικά αυτά υποθέτουμε ότι ακτινοβολούνται με φάσματα ακτίνων Χ (50-100 kVp). Η μη γραμμικότητα θεωρήθηκε ότι επηρεάζει το συντελεστή της ενδογενούς απόδοσης μετατροπής ακτίνων Χ (nc) σε φως, που δίνει το κλάσμα της εναποτιθέμενης ενέργειας ακτίνων Χ που μεταδίδεται σε ενέργεια φωτονίων, και των οπτικών παραγόντων του σπινθηριστή. Λάβαμε μια δημοσιευμένη τιμή nc για το εκάστοτε πάχος στα 50 kVp και προσαρμόσαμε το μήκος αντίστροφης διάχυσης (inverse diffusion length – σ) ενός θεωρητικού μοντέλου στα πειραματικά δεδομένα. Έπειτα για τις υπόλοιπες υψηλές τάσεις της λυχνίας βρέθηκαν οι αντίστοιχες τιμές nc για τις οποίες το θεωρητικό μοντέλο ταιριάζει στα δημοσιευμένα πειραματικά δεδομένα. Έτσι βρέθηκε η αυξομείωση του παράγοντα nc για όλα τα υλικά συναρτήσει της τάσης της λυχνίας καθώς και της ενέργειας που απορροφά ο κρύσταλλος και καταλήξαμε στο συμπέρασμα ότι το φαινόμενο της μη αναλογικότητας υπάρχει και ότι τα αίτια του χρήζουν περαιτέρω διερεύνησης.
title: Diagnosis of a high-risk lesion after stereotactic vaccum-assisted biopsy of groups of suspicious microcalcifications: underestimation rate.
Creators: name: Merino Rasillo, Paula
Publisher: name: European Congress of Radiology
Year: 2015
Subjects: subject: Breast
subject: Percutaneous
subject: Biopsy
subject: Cancer

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Stereotactic vacuum-assisted biopsy (VAB) is widely used in place of surgical biopsy for the diagnosis of mammographically detected lesions of the breast. Although stereotactic VAB has been shown to be highly accurate in diagnosing benign and...
Computational 2D Materials Database: Electronic Structure of Transition-Metal Dichalcogenides and Oxides
Creators: name: Rasmussen, Filip Anselm
name: Thygesen, Kristian Sommer
Publisher: name: arXiv
Year: 2015
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present a comprehensive first-principles study of the electronic structure of 51 semiconducting monolayer transition metal dichalcogenides and -oxides in the 2H and 1T hexagonal phases. The quasiparticle (QP) band structures with spin-orbit coupling are calculated in the $G_0W_0$ approximation and comparison is made with different density functional theory (DFT) descriptions. Pitfalls related to the convergence of $GW$ calculations for 2D materials are discussed together with possible solutions. The monolayer band edge positions relative to vacuum are used to estimate the band alignment at various heterostructure interfaces. The sensitivity of the band structures to the in-plane lattice constant is analysed and rationalized in terms of the electronic structure. Finally, the $q$-dependent dielectric functions and effective electron/hole masses are obtained from the QP band structure and used as input to a 2D hydrogenic model to estimate exciton binding energies. Throughout the paper we focus on trends and correlations in the electronic structure rather than detailed analysis of specific materials. All the computed data is available in an open database.
description: 24 pages, 13 figures and 5 tables. J. Phys. Chem. C, Article ASAP, Publication Date (Web): April 30, 2015
A theory of organizational readiness for change
Creators: name: Weiner, Bryan
Publisher: name: BioMed Central Ltd
Year: 2009

description: Abstract Background Change management experts have emphasized the importance of establishing organizational readiness for change and recommended various strategies for creating it. Although the advice seems reasonable, the scientific basis for it is limited. Unlike individual readiness for change, organizational readiness for change has not been subject to extensive theoretical development or empirical study. In this article, I conceptually define organizational readiness for change and develop a theory of its determinants and outcomes. I focus on the organizational level of analysis because many promising approaches to improving healthcare delivery entail collective behavior change in the form of systems redesign--that is, multiple, simultaneous changes in staffing, work flow, decision making, communication, and reward systems. Discussion Organizational readiness for change is a multi-level, multi-faceted construct. As an organization-level construct, readiness for change refers to organizational members' shared resolve to implement a change (change commitment) and shared belief in their collective capability to do so (change efficacy). Organizational readiness for change varies as a function of how much organizational members value the change and how favorably they appraise three key determinants of implementation capability: task demands, resource availability, and situational factors. When organizational readiness for change is high, organizational members are more likely to initiate change, exert greater effort, exhibit greater persistence, and display more cooperative behavior. The result is more effective implementation. Summary The theory described in this article treats organizational readiness as a shared psychological state in which organizational members feel committed to implementing an organizational change and confident in their collective abilities to do so. This way of thinking about organizational readiness is best suited for examining organizational changes where collective behavior change is necessary in order to effectively implement the change and, in some instances, for the change to produce anticipated benefits. Testing the theory would require further measurement development and careful sampling decisions. The theory offers a means of reconciling the structural and psychological views of organizational readiness found in the literature. Further, the theory suggests the possibility that the strategies that change management experts recommend are equifinal. That is, there is no 'one best way' to increase organizational readiness for change.
Replication of Griskevicius, V., Tybur, J. M., & Van den Bergh, B. (2010) at University of Minnesota Summer/Fall 2016
Creators: name: Lenne, Richie
name: Mann, Traci
name: Powell, Emily
Publisher: name: Open Science Framework
Year: 2022

description: We are a group of students replicating this study for Richie Lenne's research methods course.
AWclust: point-and-click software for non-parametric population structure analysis
Creators: name: Starmer, Joshua D
Publisher: name: BioMed Central Ltd
Year: 2008

description: Abstract Background Population structure analysis is important to genetic association studies and evolutionary investigations. Parametric approaches, e.g. STRUCTURE and L-POP, usually assume Hardy-Weinberg equilibrium (HWE) and linkage equilibrium among loci in sample population individuals. However, the assumptions may not hold and allele frequency estimation may not be accurate in some data sets. The improved version of STRUCTURE (version 2.1) can incorporate linkage information among loci but is still sensitive to high background linkage disequilibrium. Nowadays, large-scale single nucleotide polymorphisms (SNPs) are becoming popular in genetic studies. Therefore, it is imperative to have software that makes full use of these genetic data to generate inference even when model assumptions do not hold or allele frequency estimation suffers from high variation. Results We have developed point-and-click software for non-parametric population structure analysis distributed as an R package. The software takes advantage of the large number of SNPs available to categorize individuals into ethnically similar clusters and it does not require assumptions about population models. Nor does it estimate allele frequencies. Moreover, this software can also infer the optimal number of populations. Conclusion Our software tool employs non-parametric approaches to assign individuals to clusters using SNPs. It provides efficient computation and an intuitive way for researchers to explore ethnic relationships among individuals. It can be complementary to parametric approaches in population structure analysis.
title: CT manifestations of rare intracranial complications in patients with acquired cholesteatoma
Creators: name: Cvijovic, Aleksandra
Publisher: name: European Congress of Radiology
Year: 2015
Subjects: subject: Abscess
subject: Computer Applications-General
subject: Computer Applications-Detection, diagnosis
subject: CT
subject: Neuroradiology brain
subject: Ear / Nose / Throat

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: The aim of this paper was to summarize the intracranial complications in patients with acquired...
Towards large-Chern-number topological phases by periodic quenching
Creators: name: Xiong, Tian-Shi
name: Gong, Jiangbin
name: An, Jun-Hong
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Topological phases with large Chern numbers have important implications. They were previously predicted to exist by considering fabricated long-range interactions or multi-layered materials. Stimulated by recent wide interests in Floquet topological phases, here we propose a scheme to engineer large-Chern-number phases with ease by periodic quenching. Using a two-band system as an example, we theoretically show how a variety of topological phases with widely tunable Chern numbers can be generated by periodic quenching between two simple Hamiltonians that otherwise give low Chern numbers. The obtained large Chern numbers are explained through the emergence of multiple Dirac cones in the Floquet spectra. The transition lines between different topological phases in the two-band model are also explicitly found, thus establishing a class of easily solvable but very rich systems useful for further understandings and applications of topological phases in periodically driven systems.
description: 9 pages and 6 figures
title: MDCTA of peripheral artery disease with bolus test optimized acquisition timing
Creators: name: Casaleggio, Alessandro
Publisher: name: European Congress of Radiology
Year: 2015
Subjects: subject: Vascular
subject: Extremities
subject: CT-Angiography
subject: Contrast agent-intravenous
subject: Arteriosclerosis

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: The purpose of our educational exhibit is: To present our technique of multidetector computed tomography angiography (MDCTA) in a series of patients with peripheral artery disease (PAD), using the “bolus test” (BT) technique To optimize the...
Enzymes as modular catalysts for redox halfreactions in H2-powered chemical synthesis: from biology to technology
Creators: name: Reeve, Holly A.
name: Ash, Philip A.
name: Park, HyunSeo
name: Huang, Ailun
name: Posidias, Michalis
name: Tomlinson, Chloe
name: Lenz, Oliver
name: Vincent, Kylie A.
Publisher: name: Technische Universität Berlin
Year: 2017
Subjects: subject: 547 Organische Chemie
subject: biotechnology
subject: hydrogen
subject: hydrogenase
subject: heterogeneous catalysis
subject: NADH
subject: redox enzymes

description: The present study considers the ways in which redox enzyme modules are coupled in living cells for linking reductive and oxidative half-reactions, and then reviews examples in which this concept can be exploited technologically in applications of coupled enzyme pairs. We discuss many examples in which enzymes are interfaced with electronically conductive particles to build up heterogeneous catalytic systems in an approach which could be termed synthetic biochemistry. We focus on reactions involving the H+/H2 redox couple catalysed by NiFe hydrogenase moieties in conjunction with other biocatalysed reactions to assemble systems directed towards synthesis of specialised chemicals, chemical building blocks or bio-derived fuel molecules. We review our work in which this approach is applied in designing enzyme-modified particles for H2-driven recycling of the nicotinamide cofactor NADH to provide a clean cofactor source for applications of NADH-dependent enzymes in chemical synthesis, presenting a combination of published and new work on these systems. We also consider related photobiocatalytic approaches for light-driven production of chemicals or H2 as a fuel. We emphasise the techniques available for understanding detailed catalytic properties of the enzymes responsible for individual redox half-reactions, and the importance of a fundamental understanding of the enzyme characteristics in enabling effective applications of redox biocatalysis.
title: Automatic classification of pulmonary artery and vein sub-trees by tree modeling and quantitative features based on tree geometry and topology.
Creators: name: Kim, Namkug
Publisher: name: European Congress of Radiology
Year: 2015
Subjects: subject: Computer applications
subject: Lung
subject: CT
subject: CAD
subject: Computer Applications-Detection, diagnosis
subject: CAD
subject: Hypertension

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: This paper introduces a framework for automatic classification of pulmonary artery and vein sub-trees. Despite the findings that there is a relation between vessel distribution and various pulmonary diseases, there has not been much research about...
Evaluating our ability to predict the structural disruption of RNA by SNPs
Creators: name: Laederach, Alain
name: Martin, Joshua S
name: Ritz, Justin
Publisher: name: BioMed Central Ltd
Year: 2012

description: Abstract The structure of RiboNucleic Acid (RNA) has the potential to be altered by a Single Nucleotide Polymorphism (SNP). Disease-associated SNPs mapping to non-coding regions of the genome that are transcribed into RiboNucleic Acid (RNA) can potentially affect cellular regulation (and cause disease) by altering the structure of the transcript. We performed a large-scale meta-analysis of Selective 2'-Hydroxyl Acylation analyzed by Primer Extension (SHAPE) data, which probes the structure of RNA. We found that several single point mutations exist that significantly disrupt RNA secondary structure in the five transcripts we analyzed. Thus, every RNA that is transcribed has the potential to be a “RiboSNitch;” where a SNP causes a large conformational change that alters regulatory function. Predicting the SNPs that will have the largest effect on RNA structure remains a contemporary computational challenge. We therefore benchmarked the most popular RNA structure prediction algorithms for their ability to identify mutations that maximally affect structure. We also evaluated metrics for rank ordering the extent of the structural change. Although no single algorithm/metric combination dramatically outperformed the others, small differences in AUC (Area Under the Curve) values reveal that certain approaches do provide better agreement with experiment. The experimental data we analyzed nonetheless show that multiple single point mutations exist in all RNA transcripts that significantly disrupt structure in agreement with the predictions.
title: Portal vein thrombosis: Imaging spectrum of etiologies in MDCT.
Creators: name: Monreal, Raquel
Publisher: name: European Congress of Radiology
Year: 2015
Subjects: subject: Embolism / Thrombosis
subject: Contrast agent-intravenous
subject: CT
subject: Veins / Vena cava
subject: Liver
subject: Abdomen

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: (1) To review the MDCT features of portal vein thrombosis (2) To review some of the clinical situations associated to portal vein thrombosis with images of cases studied in our...
The perioperative stress response and myocardial injury after noncardiac surgery: a scoping review
Creators: name: Li, Jack
name: Nazareth, Justin
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Medical Sciences
subject: Anesthesiology
subject: Cardiology
subject: Medicine and Health Sciences
subject: Medical Specialties

description: Myocardial injury after noncardiac surgery (MINS) is the most common perioperative vascular complication affecting up to 8 million adults worldwide annually. Patients who suffer MINS are at increased risk of postoperative mortality and major non-fatal cardiovascular complications with this elevated risk persisting well beyond the early postoperative period. The perioperative period is characterised by neuroendocrine-metabolic and inflammatory responses to surgical injury. If excessive or prolonged, however, these responses can become pathophysiologic, resulting in systemic inflammatory response, organ impairment, immunosuppression and postoperative complications. This pathophysiologic response is thought to contribute to the development of MINS. This review will explore the existing literature surrounding the aetiology of MINS, focusing on the role of the perioperative stress response.
RAVE stars tidally stripped/ejected from $ω$ Centauri globular cluster
Creators: name: Fernández-Trincado, J. G.
name: Robin, A. C.
name: Vieira, K.
name: Moreno, E.
name: Bienaymé, O.
name: Reylé, C.
name: Valenzuela, O.
name: Pichardo, B.
name: Robles-Valdez, F.
name: Martins, A. M. M.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Using six-dimesional phase-space information from the Fourth Data release of the Radial Velocity Experiment (RAVE) over the range of Galactic longitude 240$^{\circ}< l V_{esc,0}$) from the cluster, we identified 15 stars as having close encounters with $ω$ Centauri: (\textit{i}) 8 stars with relative velocities $V_{rel}< 200 $ kms$^{-1}$ may have been ejected $\sim$ 200 Myr ago from $ω$ Centauri; (\textit{ii}) other group of 7 stars were identified with high relative velocity $V_{rel}> 200 $ kms$^{-1}$ during close encounters, and seems unlikely that they have been ejected from $ω$ Centauri. We also confirm the link between J131340.4-484714 as potential member of $ω$ Centauri, and probably ejected $\sim$ 2.0 Myr ago, with a relative velocity $V_{rel}\sim80$ kms$^{-1}$.
description: 10 pages, 8 figures, accepted for publication in Astron. and Astrophys
Επιχειρηματικό σχέδιο (business plan) για τη δημιουργία ολοκληρωμένης μονάδας παραγωγής βιοαερίου
Creators: name: Μαλαβέτας, Γεώργιος
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2023
Subjects: subject: Μονάδα βιοαερίου

description: Σκοπός της παρούσας διπλωματικής εργασίας είναι η κατάρτιση ενός επενδυτικού/επιχειρηματικού σχεδίου για την ανάπτυξη εντός της ελληνικής επικράτειας και συγκεκριμένα στην Περιφερειακή Ενότητα Αρκαδίας μιας μονάδας παραγωγής ηλεκτρικής ενέργειας από βιοαέριο ισχύος 1.0 MWel. Αναλυτικότερα, στο 1ο κεφάλαιο γίνεται μία συνοπτική μνεία στην περιγραφή της επιχείρησης. Εν συνεχεία, το 2ο κεφάλαιο αποτελεί μία εκτενή ανάλυση της βασικής ιδέας και του ιστορικού της επένδυσης. Στο επόμενο κεφάλαιο (3ο) περικλείεται η ανάλυση κλάδου, ανάλυση αγοράς εγχώριας και το μίγμα μάρκετινγκ. Το 4ο κεφάλαιο περιλαμβάνει την ανάλυση των πρώτων υλών και των εφοδίων. Εν συνεχεία στο επόμενο κεφάλαιο (5ο) γίνεται μία διεξοδική ανάλυση μηχανολογικού εξοπλισμού που χρησιμοποιήθηκε στην νέα επένδυση. Αναλύθηκε το πρόγραμμα παραγωγής η αγορά των μηχανημάτων και των συστημάτων διασφάλισης ποιότητας. Στο κεφάλαιο (6ο) αναλύεται η οργάνωση της μονάδας και τα γενικά έξοδα. Στο επόμενο κεφάλαιο (7ο) έγινε αναφορά στους ανθρώπινους πόρους που χρειάστηκαν για τις ανάγκες του επενδυτικού σχεδίου. Στα επόμενα δύο κεφάλαια (8) (9) έγινε ανάλυση του χώρου εγκατάστασης, της τοποθεσίας και ο προγραμματισμός εκτέλεσης των έργων. Τέλος στο τελευταίο κεφάλαιο γίνεται η χρηματοοικονομική αξιολόγηση της επένδυσης όπου θα μας βοηθήσει να καταλήξουμε κατά πόσο το επιχειρηματικό μας σχέδιο είναι βιώσιμο βάση των δεδομένων που έχουμε εξετάσει.
title: Peritoneal carcinomatosis: spectrum of CT findings
Creators: name: Correia, Ricardo
Publisher: name: European Congress of Radiology
Year: 2015
Subjects: subject: Metastases
subject: Diagnostic procedure
subject: CT
subject: Oncology
subject: Abdomen

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: To review the basic anatomy of the peritoneum and the common pathways of disease spread through the peritoneal cavity. To review the imaging findings suggestive of peritoneal carcinomatosis in...
The Hypercentral Constituent Quark Model and its symmetry
Creators: name: Giannini, M. M.
name: Santopinto, E.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The hypercentral CQM, which is inspired by Lattice QCD calculations for quark-antiquark potentials, is presented, stressing its underlying symmetry. Its results for the spectrum, the helicity amplitudes and the elastic form factors are briefly reported. In the latter case the model has allowed to show, for the first time in the framework of a quark model, that relativistic effects are responsible for a deviation from the usually accepted dipole behaviour, in agreement with recent data taken at the Jefferson Lab.
description: Workshop Symmetries in Nuclear Structure, Erice March 23-30, 2003, in honor of the 60th birthday of Franco Iachello Published in Symmetries in nuclear structure, Science and culture Series, Physics 24, 384-389, (A. Vitturi, R. F. Casten eds.) World Scientific, Singapore 2004
title: Functional MRI (DCE-MRI) in the follow-up of prostate cancer after beam radiotherapy (EBRT)
Creators: name: Méndez Escalante, Jorge
Publisher: name: European Congress of Radiology
Year: 2015
Subjects: subject: Pelvis
subject: Oncology
subject: Genital / Reproductive system male
subject: MR
subject: MR-Functional imaging
subject: Diagnostic procedure
subject: Neoplasia

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: •Review the utility of DCE-MRI in the follow up of prostate cancer after EBRT+/- androgen deprivation. •Study whether morphological and functional MRI is associated with final response. •Investigate whether DCE- MRI provides additional...
Testing for association of the monoamine oxidase A promoter polymorphism with brain structure volumes in both autism and the fragile X syndrome
Creators: name: Hazlett, Heather
name: Piven, Joseph
Publisher: name: BioMed Central Ltd
Year: 2014

description: Abstract Background Autism and the fragile X syndrome (FXS) are related to each other genetically and symptomatically. A cardinal biological feature of both disorders is abnormalities of cerebral cortical brain volumes. We have previously shown that the monoamine oxidase A (MAOA) promoter polymorphism is associated with cerebral cortical volumes in children with autism, and we now sought to determine whether the association was also present in children with FXS. Methods Participants included 47 2-year-old Caucasian boys with FXS, some of whom also had autism, as well as 34 2-year-old boys with idiopathic autism analyzed in a previous study. The MAOA promoter polymorphism was genotyped and tested for relationships with gray and white matter volumes of the cerebral cortical lobes and cerebro-spinal fluid volume of the lateral ventricles. Results MAOA genotype effects in FXS children were the same as those previously observed in idiopathic autism: the low activity MAOA promoter polymorphism allele was associated with increased gray and white matter volumes in all cerebral lobes. The effect was most pronounced in frontal lobe gray matter and all three white matter regions: frontal gray, F = 4.39, P = 0.04; frontal white, F = 5.71, P = 0.02; temporal white, F = 4.73, P = 0.04; parieto-occipital white, F = 5.00, P = 0.03. Analysis of combined FXS and idiopathic autism samples produced P values for these regions <0.01 and effect sizes of approximately 0.10. Conclusions The MAOA promoter polymorphism is similarly associated with brain structure volumes in both idiopathic autism and FXS. These data illuminate a number of important aspects of autism and FXS heritability: a genetic effect on a core biological trait of illness, the specificity/generalizability of the genetic effect, and the utility of examining individual genetic effects on the background of a single gene disorder such as FXS.
title: Do we need both bone scan and CT CAP in staging of newly diagnosed node positive breast cancer?
Creators: name: McCloskey, Fiona
Publisher: name: European Congress of Radiology
Year: 2015
Subjects: subject: Cancer
subject: Staging
subject: Nuclear medicine conventional
subject: CT
subject: Lymph nodes
subject: Breast
subject: Bones

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: iRefer guidelines state that in newly diagnosed breast cancer patients, staging for metastases is reserved for those with high pre-test probability or those who have symptoms suggestive of distal spread (1). The guidelines mention a range of...
title: Different imaging faces of Langerhans cell histiocytosis
Creators: name: Serban, Bianca
Publisher: name: European Congress of Radiology
Year: 2015
Subjects: subject: Bones
subject: Paediatric
subject: CT
subject: MR
subject: Digital radiography
subject: Education
subject: Genetic defects

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: The aims of our study are: to review and describe the current and particular aspects of Langerhans cell histiocytosis (LCH); to present our experience and illustrate elementary imaging features that are suggestive for Langerhans cell...
Development and standardization of multiplexed antibody microarrays for use in quantitative proteomics
Creators: name: Patel, Dhavalkumar D
Publisher: name: BioMed Central Ltd
Year: 2004

description: Abstract Background Quantitative proteomics is an emerging field that encompasses multiplexed measurement of many known proteins in groups of experimental samples in order to identify differences between groups. Antibody arrays are a novel technology that is increasingly being used for quantitative proteomics studies due to highly multiplexed content, scalability, matrix flexibility and economy of sample consumption. Key applications of antibody arrays in quantitative proteomics studies are identification of novel diagnostic assays, biomarker discovery in trials of new drugs, and validation of qualitative proteomics discoveries. These applications require performance benchmarking, standardization and specification. Results Six dual-antibody, sandwich immunoassay arrays that measure 170 serum or plasma proteins were developed and experimental procedures refined in more than thirty quantitative proteomics studies. This report provides detailed information and specification for manufacture, qualification, assay automation, performance, assay validation and data processing for antibody arrays in large scale quantitative proteomics studies. Conclusion The present report describes development of first generation standards for antibody arrays in quantitative proteomics. Specifically, it describes the requirements of a comprehensive validation program to identify and minimize antibody cross reaction under highly multiplexed conditions; provides the rationale for the application of standardized statistical approaches to manage the data output of highly replicated assays; defines design requirements for controls to normalize sample replicate measurements; emphasizes the importance of stringent quality control testing of reagents and antibody microarrays; recommends the use of real-time monitors to evaluate sensitivity, dynamic range and platform precision; and presents survey procedures to reveal the significance of biomarker findings.
Impact of bottle size and glass size on wine consumption at home
Creators: name: Mantzari, Eleni
name: Ventsel, Minna
name: Brocklebank, Laura
name: Pilling, Mark
name: Hollands, Gareth
name: Marteau, Theresa
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Medicine and Health Sciences
subject: Social and Behavioral Sciences
subject: alcohol consumption
subject: bottle size
subject: glass size
subject: wine

description: Background: Reducing alcohol consumption across populations would prevent a range of non-communicable diseases, including some cancers and cardiovascular diseases. Large bottles increase wine consumption at home and larger glasses increase wine sales in restaurants. The size of wine glasses used with different‐sized bottles may enhance or diminish any effect of bottle size, but the combined effect of different bottle and glass sizes on wine consumption is unknown. The aim of the current study is to assess the impact of bottle size and glass size, singly and in combination, on wine consumption at home Design: Mixed design with glass size treated as a between-subjects factor and bottle size as a within-subjects factor. Methods: During each of two 14-day intervention periods, 238 households in the UK will be requested to purchase a pre-set volume of wine - based on their baseline self-reported weekly consumption- in either 75cl or 37.5 cl bottles, in randomised order. Purchasing of each bottle size will be separated by a “usual behaviour” period of a maximum of three weeks. Households will also be randomised to receive either small (290ml) or large (350ml) glasses from which to drink the wine during both intervention periods. On days 7 and 14 of each of the two 14-day intervention periods, households will be requested to send information regarding the date each bottle was opened and finished and who drank from it, as well as photographs of all their study wine bottles and wine glasses, with all bottles weighted and photographed on study scales. The primary outcome is the volume of wine consumed at the end of each intervention period. Discussion: The findings of this study will provide the best estimate to date of the impact of bottle size and glass size, singly and in combination, on wine consumed at home, to inform scientific and policy discussions about the effectiveness of sizing interventions to reduce alcohol consumption across populations.
The impact of Polycystic Ovary Syndrome (PCOS) on quality of life: exploration, measurement and intervention.
Creators: name: Williams, Sophie
Publisher: name: University of Derby
Year: 2016
Subjects: PCOS
Quality of Life
Polycystic Ovary Syndrome
Health-related Quality of Life
HRQOL
QOL
Long-term condition

description: Polycystic Ovary Syndrome (PCOS) is one of the most common endocrine disorders amongst women, estimated to affect one out of 10 women. Symptoms include infertility, obesity, alopecia, acne, hirsutism and menstrual irregularities. Women with the syndrome are also more likely to experience co-morbid physical and psychological conditions such as diabetes, heart disease, endometrial cancer and also depression and anxiety. PCOS has also been found to have a negative impact on quality of life. This thesis aimed to further understanding, and improve quality of life of women with PCOS in the UK. To achieve this, the thesis aimed to investigate and identify how women with PCOS in the UK perceive and define their quality of life and to further understanding of the day-to-day experience of living with PCOS. Moreover, in order to measure quality of life, it aimed to develop and validate a UK disease-specific quality of life measure for women with PCOS. It also aimed to identify, develop and test a pilot intervention to increase quality of life in women with PCOS. To achieve these aims a mixed-methods approach was taken employing a variety of data generation and collection methods including: photovoice, online Skype™ interviews; LimeSurvey and Qualtrics. The findings of this thesis emphasise that PCOS has a negative impact on quality of life; encompassing psychological, social, environmental, and physical domains of quality of life. Women with PCOS who experienced the symptoms of infertility, hirsutism, weight, alopecia, skin discolouration, skin tags and mood swings had significantly lower scores of overall quality of life than those women who did not experience the symptoms. In addition, those women with PCOS who had a diagnosis of anxiety and/or depression had reduced quality of life. The dissemination of these findings will enable health care professionals to better understand the experience of living with PCOS and its impact on quality of life. Moreover, this thesis identifies many areas for future research which will enable a better understanding of the impact of PCOS on quality of life. Finally, this thesis makes recommendations for clinical practice which include improvement of support from health care professionals for women with PCOS in order to help them better manage their symptoms, and therefore improve their overall quality of life.
A method for designing the variable-channel high-power cavity combiner
Creators: name: Liu, Yongtao
name: Huang, Guirong
name: Shang, Lei
name: Lin, Hongxiang
name: Du, Baiting
Publisher: name: arXiv
Year: 2016
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: Cavity combiners have been put forward for high power combining due to their advantages of larger combining ability, variable input channels and less power loss. For a high power cavity combiner, it is better to keep the power loss ratio in a reasonable range, because large power loss would lead to strict requirements on the cooling system. A combiner with variable input channels is convenient for outputting different power levels according to practical demands. In this paper, a method for designing a variable-channel high-power cavity combiner is proposed, based on the relation between input and output coupling coefficients obtained by analyzing the equivalent circuit of the cavity combiner. This method can put the designed cavity combiner in a matching state and keep its power loss rate in a reasonable range as the number of input channels changes. As an example, a cavity combiner with 500 MHz and variable input channels from 16 to 64 is designed, and the simulation results show that our proposed method is feasible.
description: 6 pages, 8 figures
title: Analysis of interval cancer (IC) subtypes according to mammogram modality in the Screening Program in Cantabria, Spain.
Creators: name: Lopez Uzquiza, Elena
Publisher: name: European Congress of Radiology
Year: 2015
Subjects: subject: Breast
subject: Mammography
subject: Biopsy
subject: Cancer
subject: Neoplasia

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: The primary aim of a breast screening programme is to reduce mortality from breast cancer through early detection. The key factors necessary to achieve this goal, are a high acceptance by the target population, and a high level of quality of the...
Identifiability of logistic regression with homoscedastic error: Berkson model
Creators: name: Shklyar, Sergiy
Publisher: name: arXiv
Year: 2015
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: We consider the Berkson model of logistic regression with Gaussian and homoscedastic error in regressor. The measurement error variance can be either known or unknown. We deal with both functional and structural cases. Sufficient conditions for identifiability of regression coefficients are presented. Conditions for identifiability of the model are studied. In the case where the error variance is known, the regression parameters are identifiable if the distribution of the observed regressor is not concentrated at a single point. In the case where the error variance is not known, the regression parameters are identifiable if the distribution of the observed regressor is not concentrated at three (or less) points. The key analytic tools are relations between the smoothed logistic distribution function and its derivatives.
description: Published at http://dx.doi.org/10.15559/15-VMSTA27 in the Modern Stochastics: Theory and Applications (https://www.i-journals.org/vtxpp/VMSTA) by VTeX (http://www.vtex.lt/)
title: Συγκριτική μελέτη λειτουργικών συστημάτων πραγματικού χρόνου στον μικροελεγκτή ATmega328p
title: Comparative study of real-time operating systems on the ATmega328p microcontroller
titleType: AlternativeTitle
Creators: name: Παπαδόπουλος, Γρηγόριος
Publisher: name: Πανεπιστήμιο Δυτικής Αττικής
Year: 2023
Subjects: ATmega328p
Λειτουργικά συστήματα πραγματικού χρόνου
Σύγκριση επιδόσεων

description: Η διπλωματική εργασία που παρουσιάζεται ασχολείται με τη συγκριτική μελέτη δύο λειτουργικών συστημάτων πραγματικού χρόνου στον μικροελεγκτή ATmega328p. Αρχικά, εξηγείται η έννοια των λειτουργικών συστημάτων πραγματικού χρόνου και τα πλεονεκτήματα που προσφέρουν σε σχέση με τα λειτουργικά συστήματα γενικού σκοπού. Τα λειτουργικά συστήματα πραγματικού χρόνου είναι σχεδιασμένα για να αντιμετωπίζουν εργασίες που πρέπει να εκτελούνται σε συγκεκριμένους χρόνους, ενώ τα λειτουργικά συστήματα γενικού σκοπού είναι περισσότερο ευέλικτα και δεν δίνουν τόσο μεγάλη έμφαση στην ακρίβεια των χρονικών περιορισμών. Στη συνέχεια, η εργασία παρουσιάζει μετρήσεις από δύο διαφορετικά λειτουργικά συστήματα πραγματικού χρόνου, το FreeRTOS και το ChibiOS. Οι μετρήσεις αξιολογούν την απόδοση των δύο αυτών λειτουργικών συστημάτων ως προς τη χρήση μνήμης και τον χρόνο ολοκλήρωσης των διεργασιών.
Farm Fresh Foods for Healthy Kids (F3HK): An innovative community supported agriculture intervention to prevent childhood obesity in low-income families and strengthen local agricultural economies
Creators: name: McGuirt, Jared T.
name: Ammerman, Alice
Publisher: name: BioMed Central
Year: 2017

description: Abstract Background Childhood obesity persists in the United States and is associated with serious health problems. Higher rates of obesity among children from disadvantaged households may be, in part, attributable to disparities in access to healthy foods such as fruits and vegetables. Community supported agriculture can improve access to and consumption of fresh produce, but the upfront payment structure, logistical barriers, and unfamiliarity with produce items may inhibit participation by low-income families. The aim of this project is to assess the impact of subsidized, or “cost-offset,” community supported agriculture participation coupled with tailored nutrition education for low-income families with children. Methods/design The Farm Fresh Foods for Healthy Kids community-based, randomized intervention trial will build on formative and longitudinal research to examine the impact of cost-offset community supported agriculture on diet and other health behaviors as well as the economic impacts on local economies. The intervention will involve reduced-price community supported agriculture shares which can be paid for on a weekly basis, nine skill-based and seasonally-tailored healthy eating classes, and the provision of basic kitchen tools. Low income families with at least one child aged 2–12 years will be recruited to join existing community supported agriculture programs in New York, North Carolina, Vermont, and Washington. In each program, families will be randomized 1:1 to intervention or delayed intervention groups. Data will be collected at baseline, and in the fall and spring for 3 years. The primary outcomes are children’s intake of fruits and vegetables and foods high in sugar and/or (solid) fat, as well as diet quality; secondary outcomes include physical, behavioral, psychosocial, and environmental variables. Cost-effectiveness and economic impact at the farm and community levels also will be assessed. Discussion This integrated project will provide important information and contribute to the evidence base regarding the use of local agricultural interventions to improve children’s dietary behaviors and weight maintenance. Findings also will inform the development of a toolkit for farmers and education modules related to local food system innovations for undergraduate and graduate students. Trial registration ClinicalTrials.gov NCT02770196 . Registered 5 April 2016.
Evidence for the virtual beta-gamma transition in 59Ni
Creators: name: Pfützner, M.
name: Pachucki, K.
name: Żylicz, J.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: A novel theory of radiative electron capture in second forbidden non-unique transition, is applied to reanalyze experimental data obtained previously for the decay of 59Ni. The measured gamma spectrum is shown to be distorted at the high-energy end, presenting the first direct evidence for the virtual beta-gamma transition through the excited state in 59Co. The complete theoretical predictions, including both the direct and the virtual decay channels, as well as the interference between them, reproduce very well the experimental spectrum. The virtual nuclear component amounts to about 4% of the total gamma intensity.
description: 5 pages, 3 figures
Periodic solutions of nonlinear second-order difference equations
Creators: name: Rodriguez, Jesús
name: Etheridge, Debra Lynn
Publisher: name: Springer
Year: 2005

description: We establish conditions for the existence of periodic solutions of nonlinear, second-order difference equations of the form y(t + 2) + by (t + 1) + cy(t) = f (y(t)), where f: ℝ → ℝ and β > 0 is continuous. In our main result we assume that f exhibits sublinear growth and that there is a constant uf (u) > 0 such that |u| ≥ β whenever c = 1. For such an equation we prove that if N is an odd integer larger than one, then there exists at least one N-periodic solution unless all of the following conditions are simultaneously satisfied: |b| < 2, N across-1(-b/2), and π is an even multiple of c ≠ 0.