cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Μελέτη συσχέτισης φλοιϊκών ενεργοποιήσεων με βιοχημικά μοριακά μονοπάτια του εγκεφάλου σε ασθενείς με σκλήρυνση κατά πλάκας που δοκιμάζονται σε ανθρώπινη φυγόκεντρο κοντού βραχίονα
Creators: name: Γιάντσιος, Χρήστος Σωτηρίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2022
Subjects: Φλοιϊκές ενεργοποιήσεις
Σκλήρυνση κατά πλάκας
Ανθρώπινη φυγόκεντρος κοντού βραχίονα
Cortical activations
Multiple sclerosis
Short-arm human centrifuge

description: Σκοπός της παρούσας διπλωματικής εργασίας είναι η διερεύνηση βιοδεικτών-πρωτεινών για την σκλήρυνση κατά́ πλάκας και την άσκηση μέσα από μελέτη συστημικής ανασκόπησης της βιβλιογραφίας και να γίνει προσπάθεια συσχέτισης μοριακών πληροφοριών με συγκεκριμένες φλοιϊκές περιοχές σε κατάσταση ηρεμίας, σε ασθενείς με σκλήρυνση κατά́ πλάκας που δοκιμάζονται σε ανθρώπινη φυγόκεντρο κοντού́ βραχίονα. Θα χρησιμοποιηθούν δεδομένα από ηλεκτροεγκεφαλογράφο, τα οποία συλλέχθηκαν κατά τη διαδικασία της φυγοκέντρου. Οι παραπάνω αναλύσεις πραγματοποιήθηκαν σε περιβάλλον MATLAB και με τη γλώσσα προγραμματισμού Python. Απώτερος σκοπός της διπλωματικής εργασίας είναι η μελέτη της επίδρασης της ανθρώπινης φυγοκέντρου κοντού βραχίονα σε ασθενείς με σκλήρυνση κατά πλάκας και η χρήση της ως μία πιθανή θεραπευτική προσέγγιση για τη βελτίωση της κατάστασής τους.
description: The purpose of this master thesis is to investigate biomarkers-proteins for multiple sclerosis and exercise through a systematic review of the literature and to attempt to correlate molecular information with specific cortical regions in patients with multiple sclerosis, who are tested in a short-arm human centrifuge. Data collected from an electroencephalograph during the centrifuge procedure will be used. The above analyzes were performed in the MATLAB environment and with Python programming language. The main purpose of this master thesis is to investigate brain functional connectivity alterations before and after the intervention of the short-arm human centrifuge (SAHC) in patients suffering from multiple sclerosis and to study the potential of the short-arm human centrifuge (SAHC) as a possible rehabilitation approach to improve their condition.
Unitarity of Superstring Field Theory
Creators: name: Sen, Ashoke
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We complete the proof of unitarity of (compactified) heterotic and type II string field theories by showing that in the cut diagrams only physical states appear in the sum over intermediate states. This analysis takes into account the effect of mass and wave-function renormalization, and the possibility that the true vacuum may be related to the perturbative vacuum by small shifts in the string fields.
description: LaTeX, 16 pages; v2: clarifications added
Ανάλυση δεδομένων στα ΕΛΤΑ
Creators: name: Γκούμα, Αικατερίνη Ευαγγέλου
Publisher: name: Aristotle University of Thessaloniki
Year: 2022
Subjects: Αλληλογραφία
Αναλυτική δεδομένων
Οπτικοποίηση δεδομένων
Data analytics
Power bi
Tableau

description: Η εξέλιξη της τεχνολογίας οδηγεί στη διαρκή και απανταχού συλλογή δεδομένων, ειδικά στον επιχειρηματικό κόσμο, τα οποία μπορούν κατόπιν κατάλληλης επεξεργασίας να αποτελέσουν εφαλτήριο για τη λήψη αποφάσεων και να μετατραπούν σε πηγή δημιουργίας αξίας. Στην παρούσα διπλωματική εργασία μελετάται η βιβλιογραφία στο πεδίο της επιχειρηματικής ευφυΐας και αναλυτικής, και εξετάζεται η περίπτωση της διακίνησης αλληλογραφίας στα Ελληνικά Ταχυδρομεία, με εφαρμογή τεχνικών ανάλυσης δεδομένων με το λογισμικό Tableauκαι με το λογισμικό PowerBI. Σημειώνεται πως αν και αμφότερα παράγουν τα ίδια αποτελέσματα, το PowerBIπροσφέρει περισσότερες δυνατότητες ανάλυσης χωρίς την ανάγκη γραφής κώδικα, άρα είναι πιο φιλικό προς λιγότερο έμπειρους χρήστες.
description: The development of technology leads to the continuous and ubiquitous collection of data, especially in the business world, which, after proper processing, can act as a springboard for decision-making and become a source of value creation. In this bachelor’s thesis, the literature in the field of business intelligence and analytics is studied, and the case of mail handling in the Greek Post Office is examined, applying data analysis techniques with Tableau and Power BI software. It is noted that although both produce the same results, Power BI offers more analysis capabilities without the need to write code, so it is more friendly to less experienced users.
Our mutual friend, no. 09
Creators: name: Dickens, Charles, 1812-1870
Publisher: name: University of Victoria Libraries
Year: 2018
Subjects: subject: Inheritance and succession
valueUri: http://id.worldcat.org/fast/973371
subject: Social classes
valueUri: http://id.worldcat.org/fast/1122346
subject: Social conflict
valueUri: http://id.worldcat.org/fast/1122378
subject: Families
valueUri: http://id.worldcat.org/fast/1728849

description: Last complete novel completed by Charles Dickens and is one of his most sophisticated works, combining savage satire with social analysis. In the opening chapters a body is found in the Thames and identified as that of John Harmon, a young man recently returned to London to receive his inheritance. Were he alive, his father's will would require him to marry Bella Wilfer, a beautiful, mercenary girl whom he had never met. Instead, the money passes to the working-class Boffins, and the effects spread into various corners of London society. Issued monthly from May 1864 to November 1865 in illustrated green paper covers. Chapters 11-13: Chapter 11. Some affairs of the heart -- Chapter 12. More birds of prey -- Chapter 13. A solo and a duet
Leptoquark Flavor Patterns & B Decay Anomalies
Creators: name: Hiller, Gudrun
name: Loose, Dennis
name: Schönwald, Kay
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Flavor symmetries that explain masses and mixings of the standard model fermions dictate flavor patterns for the couplings of scalar and vector leptoquarks to the standard model fermions. A generic feature is that couplings to $SU(2)$-doublet leptons are suppressed at least by one spurion of the discrete non-abelian symmetry breaking, responsible for neutrino mixing, while couplings to charged lepton singlets can be order one. We obtain testable patterns including those that predominantly couple to a single lepton flavor, or two, or in a skewed way. They induce lepton non-universality, which we contrast to current anomalies in $B$-decays. We find maximal effects in $R_{D}$ and $R_{D^*}$ at the level of $\sim$10 percent and few percent, respectively, while leptoquark effects in $R_{K^{(*)}}$ can reach order few$\times 10$ percent. Predictions for charm and kaon decays and $μ-e$ conversion are worked out.
description: 23 pages plus references and appendices, 2 figures, v2: typos fixed, clarifications and references added; conclusions unchanged
Frailty index developed from a cancer-specific geriatric assessment and the association with mortality among older adults with cancer
Creators: name: Pergolotti, M.
name: Williams, G.R.
name: Nyrop, K.A.
name: Chang, Y.
name: Lund, J.L.
name: Sanoff, H.K.
name: Deal, A.M.
name: Muss, H.B.
name: Guerard, E.J.
Publisher: name: Harborside Press
Year: 2017

description: Background: An objective measure is needed to identify frail older adults with cancer who are at increased risk for poor health outcomes. The primary objective of this study was to develop a frailty index from a cancer-specific geriatric assessment (GA) and evaluate its ability to predict all-cause mortality among older adults with cancer. Patients and Methods: Using a unique and novel data set that brings together GA data with cancer-specific and long-term mortality data, we developed the Carolina Frailty Index (CFI) from a cancer-specific GA based on the principles of deficit accumulation. CFI scores (range, 0-1) were categorized as robust (0-0.2), pre-frail (0.2-0.35), and frail (>0.35). The primary outcome for evaluating predictive validity was all-cause mortality. The Kaplan-Meier method and log-rank tests were used to compare survival between frailty groups, and Cox proportional hazards regression models were used to evaluate associations. Results: In our sample of 546 older adults with cancer, the median age was 72 years, 72% were women, 85% were white, and 47% had a breast cancer diagnosis. Overall, 58% of patients were robust, 24% were pre-frail, and 18% were frail. The estimated 5-year survival rate was 72% in robust patients, 58% in pre-frail patients, and 34% in frail patients (log-rank test, P<.0001). Frail patients had more than a 2-fold increased risk of all-cause mortality compared with robust patients (adjusted hazard ratio, 2.36; 95% CI, 1.51-3.68). Conclusions: The CFI was predictive of all-cause mortality in older adults with cancer, a finding that was independent of age, sex, cancer type and stage, and number of medical comorbidities. The CFI has the potential to become a tool that oncologists can use to objectively identify frailty in older adults with cancer.
Machine Learning Classification of Repeating FRBs from FRB121102
Creators: name: Raquel, Bjorn Jasper R.
name: Hashimoto, Tetsuya
name: Goto, Tomotsugu
name: Chen, Bo Han
name: Uno, Yuri
name: Hsiao, Tiger Yu-Yang
name: Kim, Seong Jin
name: Ho, Simon C. -C.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Fast Radio Bursts (FRBs) are mysterious bursts in the millisecond timescale at radio wavelengths. Currently, there is little understanding about the classification of repeating FRBs, based on difference in physics, which is of great importance in understanding their origin. Recent works from the literature focus on using specific parameters to classify FRBs to draw inferences on the possible physical mechanisms or properties of these FRB subtypes. In this study, we use publicly available 1652 repeating FRBs from FRB121102 detected with the Five-hundred-meter Aperture Spherical Telescope (FAST), and studied them with an unsupervised machine learning model. By fine-tuning the hyperparameters of the model, we found that there is an indication for four clusters from the bursts of FRB121102 instead of the two clusters ("Classical" and "Atypical") suggested in the literature. Wherein, the "Atypical" cluster can be further classified into three sub-clusters with distinct characteristics. Our findings show that the clustering result we obtained is more comprehensive not only because our study produced results which are consistent with those in the literature but also because our work uses more physical parameters to create these clusters. Overall, our methods and analyses produced a more holistic approach in clustering the repeating FRBs of FRB121102.
description: 24 pages, 14 figures, accepted for publication in MNRAS. For summary video, please see https://www.youtube.com/watch?v=wYx6t2G__84&list=PLOpYDs2PkYlYIiKDjDz6r6aKXcXdJZXYb&index=13&ab_channel=NCHUAstronomy
Hand hygiene practices for prevention of health care‑associated infections associated with admitted infectious patients in the emergency department: a systematic review
Creators: name: Issa, M
name: Dunne, Suzanne S.
name: DUNNE, COLUM
Publisher: name: University of Limerick
Year: 2023
Subjects: classificationCode: 42
subject: Health sciences
subject: FOS: Health sciences

description: BackgroundIn most high-income countries, emergency departments (ED) represent the principal point of access forcer by critically ill or injured patients. Unlike inpatient units, ED healthcare workers (ED HCWs) have demonstrated relative lack of adherence to hand hygiene (HH) guidelines, commonly citing frequency of intervention and high rates of admission, which reflect severity of cases encountered.AimAssessment of studies on hand hygiene compliance (HHC) by ED HCWs conducted between 2010 and 2020, seeking to estimate HHC rates and intervention strategies utilised to improve HHC in EDs.MethodsSearches conducted in Web of Science, EBSCO HOST (CINHAL & Medline), PubMed, Embase, and Cochrane for full studies published between 2010 and 2020 on the topic of HHC in the ED.ResultsOne hundred twenty-nine eligible articles were identified of which 79 were excluded. Fifty-one underwent full-text screening before 20 studies were deemed relevant. Of the eligible studies, fifteen (75%) had, as the primary outcome, HHC according to the WHO-recommended 5-moments. Twelve studies (60%) implemented multimodal or single intervention strategies. Eight studies were ambiguous regarding the nature of the approach adopted. In the nine observational studies where HHC was documented, an overall post-intervention median HHC rate of 45% (range 8–89.7%).ConclusionMultimodal approaches appear to have enhanced HHC moderately among ED HCWs. Elevated complexity associated with critically ill patients, and ED overcrowding, are contributing factors to relatively low compliance rates observed. Strategies to improve HHC rates may need to acknowledge, and cater for, the context of an unpredictable environment.
Nonlinear modes disentangle glassy and Goldstone modes in structural glasses
Creators: name: Gartner, Luka
name: Lerner, Edan
Publisher: name: arXiv
Year: 2016
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: One outstanding problem in the physics of glassy solids is understanding the statistics and properties of the low-energy excitations that stem from the disorder that characterizes these systems' microstructure. In this work we introduce a family of algebraic equations whose solutions represent collective displacement directions (modes) in the multi-dimensional configuration space of a structural glass. We explain why solutions of the algebraic equations, coined nonlinear glassy modes, are quasi-localized low-energy excitations. We present an iterative method to solve the algebraic equations, and use it to study the energetic and structural properties of a selected subset of their solutions constructed by starting from a normal mode analysis of the potential energy of a model glass. Our key result is that the structure and energies associated with harmonic glassy vibrational modes and their nonlinear counterparts converge in the limit of very low frequencies. As nonlinear modes never suffer hybridizations, our result implies that the presented theoretical framework constitutes a robust alternative definition of `soft glassy modes' in the thermodynamic limit, in which Goldstone modes overwhelm and destroy the identity of low-frequency harmonic glassy modes.
description: 11 pages, 12 figures, resubmission to SciPost
Fermi-Liquid Behavior of the Low-Density 2D Hole Gas in a GaAs/AlGaAs Heterostructure at Large Values of rs
Creators: name: Pepper, M.
name: Proskuryakov, Y. Y.
name: Safonov, S. S.
name: Savchenko, A. K.
name: Simmons, M. Y.
Publisher: name: The American Physical Society
Year: 2001
Subjects: subject: 530

description: Physical Review Letters
Non-monotonic temperature dependence of chaos-assisted diffusion in driven periodic systems
Creators: name: Spiechowicz, Jakub
name: Talkner, Peter
name: Hänggi, Peter
name: Łuczka, Jerzy
Publisher: name: arXiv
Year: 2016
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The spreading of a cloud of independent Brownian particles typically proceeds more effectively at higher temperatures, as it derives from the commonly known Sutherland-Einstein relation for systems in thermal equilibrium. Here, we report on a non-equilibrium situation in which the diffusion of a periodically driven Brownian particle moving in a periodic potential decreases with increasing temperature within a finite temperature window. We identify as the cause for this non-intuitive behaviour a dominant deterministic mechanism consisting of a few unstable periodic orbits embedded into a chaotic attractor together with thermal noise-induced dynamical changes upon varying temperature. The presented analysis is based on extensive numerical simulations of the corresponding Langevin equation describing the studied setup as well as on a simplified stochastic model formulated in terms of a three-state Markovian process. Because chaos exists in many natural as well as in artificial systems representing abundant areas of contemporary knowledge, the described mechanism may potentially be discovered in plentiful different contexts.
Tidal debris from Omega Centauri discovered with unsupervised machine learning
Creators: name: Youakim, Kris
name: Lind, Karin
name: Kushniruk, Iryna
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The gravitational interactions between the Milky Way and in-falling satellites offer a wealth of information about the formation and evolution of our Galaxy. In this paper, we explore the high-dimensionality of the GALAH DR3 plus Gaia eDR3 data set to identify new tidally stripped candidate stars of the nearby star cluster Omega Centauri ($ω\,\mathrm{Cen}$). We investigate both the chemical and dynamical parameter space simultaneously, and identify cluster candidates that are spatially separated from the main cluster body, in regions where contamination by halo field stars is high. Most notably, we find candidates for $ω\,\mathrm{Cen}$ scattered in the halo extending to more than $50^{\circ}$ away from the main body of the cluster. Using a grid of simulated stellar streams generated with $ω\,\mathrm{Cen}$ like orbital properties, we then compare the on sky distribution of these candidates to the models. The results suggest that if $ω\,\mathrm{Cen}$ had a similar initial mass as its present day mass, then we can place a lower limit on its time of accretion at t$_{\mathrm{acc}} > 7$ Gyr ago. Alternatively, if the initial stellar mass was significantly larger, as would be expected if $ω\,\mathrm{Cen}$ is the remnant core of a dwarf Galaxy, then we can constrain the accretion time to t$_{\mathrm{acc}} > 4$ Gyr ago. Taken together, these results are consistent with the scenario that $ω\,\mathrm{Cen}$ is the remnant core of a disrupted dwarf galaxy.
description: 22 pages, 19 figures, 2 tables, accepted for publication in MNRAS
Hospice utilization and its effect on acute care needs at the end of life in medicare beneficiaries with hepatocellular Carcinoma
Creators: name: Chang, Y.
name: Reimers, M.
name: Lund, J.L.
name: Sanoff, H.K.
Publisher: name: American Society of Clinical Oncology
Year: 2017

description: Introduction Hepatocellular carcinoma (HCC) is a poor-prognosis cancer with a high symptom burden. Multidisciplinary HCC care is complex and unique in cancer medicine. We sought to determine whether the distinct process affects hospice use and how hospice affects end-of-life acute care utilization. Patients and Methods Patients dying after HCC diagnosed from 2004 to 2011 were identified within SEERMedicare. Hospice use and associated factors were described using logistic regression. Coarse exact and propensity score matching created groups of hospice and nonhospice comparators balanced on clinical characteristics. Health care use from first hospice claim to death and the matched duration in the nonhospice group were compared. Results Of 7,992 decedent patients with HCC, 63% used hospice before death, with a median duration of 18 days (interquartile range, 5-51 days). Initial treatment with surgery and ablation (odds ratio [OR], 0.63; 95% CI, 0.53 to 0.74) or chemoembolization/ radioembolization (OR, 0.71; 95% CI, 0.62 to 0.80) was associated with decreased odds of subsequent hospice use compared with untreated patients. Hospice use was more likely in those consulting hematology/oncology (OR, 1.33; 95% CI, 1.13 to 1.56) but not in those consulting gastroenterology (OR, 0.79; 95% CI, 0.65 to 0.95). Hospice patients had lower rates of hospitalization (7.9% v 47.8%; risk ratio [RR], 0.16; 95% CI, 0.14 to 0.19), intensive care unit stay (2.8% v 25.3%; RR, 0.11; 95% CI, 0.09 to 0.14), and in-hospital death (3.5% v 58.4%; RR, 0.06; 95% CI, 0.05 to 0.07). Conclusion Processes of care influence which patients with HCC are referred to hospice. Hospice use has a marked effect on acute care use at the end of life in patients with HCC. Efforts to incorporate cancer-focused palliative care might improve the quality of end-of-life care in HCC.
Synthesis of natural products using flash vacuum pyrolysis
Creators: name: Horvath., Julianna M.
Publisher: name: Monash University
Year: 2021

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Mass dependence and isospin dependence of short-range correlated pairs
Creators: name: Mosel, U.
name: Gallmeister, K.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The target-mass number dependence of nucleon-nucleon pairs with short-range correlations is explored in a physically transparent geometrical model within a zero-range approximation. The observed $A$ dependence of 2-nucleon ejection cross sections in $(e,e')$ reactions is found to reflect the mass dependence of nuclear density distributions. A parametrization of this $A$ dependence is given. The $A$ dependence of proton-proton vs.\ proton-neutron pairs relative to $^{12}$C is also analyzed in this model. It can be understood using simple combinatorics without any additional isospin dependence.
description: Version as accepted for publication in Physical Review C
Cycles and Clustering in Multiplex Networks
Creators: name: Baxter, Gareth J.
name: Cellai, Davide
name: Dorogovtsev, Sergey N.
name: Mendes, José F. F.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: In multiplex networks, cycles cannot be characterized only by their length, as edges may occur in different layers in different combinations. We define a classification of cycles by the number of edges in each layer and the number of switches between layers. We calculate the expected number of cycles of each type in the configuration model of a large sparse multiplex network. Our method accounts for the full degree distribution including correlations between degrees in different layers. In particular, we obtain the numbers of cycles of length 3 of all possible types. Using these, we give a complete set of clustering coefficients and their expected values. We show that correlations between the degrees of a vertex in different layers strongly affect the number of cycles of a given type, and the number of switches between layers. Both increase with assortative correlations and are strongly decreased by disassortative correlations. The effect of correlations on clustering coefficients is equally pronounced.
description: 5 pages, 4 figures
Quantum Entanglement & Purity Testing: A Graph Zeta Function Perspective
Creators: name: Bradshaw, Zachary P.
name: LaBorde, Margarite L.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We assign an arbitrary density matrix to a weighted graph and associate to it a graph zeta function that is both a generalization of the Ihara zeta function and a special case of the edge zeta function. We show that a recently developed bipartite pure state separability algorithm based on the symmetric group is equivalent to the condition that the coefficients in the exponential expansion of this zeta function are unity. Moreover, there is a one-to-one correspondence between the nonzero eigenvalues of a density matrix and the singularities of its zeta function. Several examples are given to illustrate these findings.
description: 13 pages, 10 figures, to appear in Physics Letters A (2023)
Multi-Phase Hadamard receivers for classical communication on lossy bosonic channels
Creators: name: Rosati, Matteo
name: Mari, Andrea
name: Giovannetti, Vittorio
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A scheme for transferring classical information over a lossy bosonic channel is proposed by generalizing the proposal presented in Phys. Rev. Lett. 106, 240502 (2011) by Guha. It employs codewords formed by products of coherent states of fixed mean photon number with multiple phases which, through a passive unitary transformation, reduce to a Pulse-Position Modulation code with multiple pulse phases. The maximum information rate achievable with optimal, yet difficult to implement, detection schemes is computed and shown to saturate the classical capacity of the channel in the low energy regime. An easy to implement receiver based on a conditional Dolinar detection scheme is also proposed finding that, while suboptimal, it allows for improvements in an intermediate photon-number regime with respect to previous proposals.
description: final version: minor changes; 8+3 pages and 5 figures
Scanning Tunneling Spectroscopy of Bi2Sr2CuO6 + 8
Creators: name: Ando, Yoichi
name: Fischer, Ø.
name: Kugler, M.
name: Ono, S.
name: Renner, Ch.
Publisher: name: The American Physical Society
Year: 2001
Subjects: subject: 530

description: Physical Review Letters
Constructing various paraxial beams out of regular and modified Bessel-Gaussian modes
Creators: name: Radożycki, Tomasz
Publisher: name: arXiv
Year: 2023
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Various superpositions of Bessel-Gaussian beams and modified Bessel Gaussian beams are considered. Two selected parameters characterizing these beams, with respect to which the superpositions are constructed, are the topological index $n$ associated with the orbital angular momentum carried by the beam, and $χ$ related to the dilation of the beam. It is shown that, from these modes, by choosing appropriate weighting factors, it is possible to create a number of well- and less-known solutions of the paraxial equation: Gaussian (shifted and non-shifted) beam, $γ$ beam, Kummer-Gaussian beam, special hyperbolic Bessel-Gaussian beam, a certain special Laguerre-Gaussian beam, and generalized paraxial beams in hyperbolic and regular versions.
description: 11 pages, 2 figures, ReVTeX
Patterns of Sociodemographic and Clinicopathologic Characteristics of Stages II and III Colorectal Cancer Patients by Age: Examining Potential Mechanisms of Young-Onset Disease
Creators: name: Lund, J.L.
name: Sandler, R.S.
name: Sanoff, H.K.
name: Stitzenberg, K.B.
name: Baron, J.A.
name: Murphy, C.C.
Publisher: name: Hindawi Limited
Year: 2017

description: Background and Aims. As a first step toward understanding the increasing incidence of colorectal cancer (CRC) in younger (age < 50) populations, we examined demographic, clinicopathologic, and socioeconomic characteristics and treatment receipt in a population-based sample of patients newly diagnosed with stages II and III CRC. Methods. Patients were sampled from the National Cancer Institute's Patterns of Care studies in 1990/91, 1995, 2000, 2005, and 2010 (n=6,862). Tumor characteristics and treatment data were obtained through medical record review and physician verification. We compared sociodemographic and clinicopathologic characteristics and treatment patterns of younger (age < 50) and older (age 50-69, age ≥ 70) CRC patients. Results. Younger patients were more likely to be black (13%) and Hispanic (15%) than patients aged 50-69 years (11% and 10%, resp.) and ≥70 years (7% each). A larger proportion of young white (41%) and Hispanic (33%) patients had rectal tumors, whereas tumors in the right colon were the most common in young black patients (39%). The majority of younger patients received chemotherapy and radiation therapy, although receipt of microsatellite instability testing was suboptimal (27%). Conclusion. Characteristics of patients diagnosed with young-onset CRC differ considerably by race/ethnicity, with a higher proportion of black and Hispanic patients diagnosed at the age of < 50 years.
Η συμβολή των προγραμμάτων ελεγχόμενης άσκησης στην αποκατάσταση ασθενών με στεφανιαία νόσο
Creators: name: Τζοτζόπουλος, Βασίλειος Θωμά
Publisher: name: Aristotle University of Thessaloniki
Year: 2022
Subjects: Στεφανιαία Νόσος
Προγράμματα αποκατάστασης
Καρδιακή αποκατάσταση
Coronary artery disease
Rehabilitation programs Cardiac rehabilitation

description: Τα προγράμματα ελεγχόμενης άσκησης είναι μια πολύτιμη θεραπεία για ασθενείς με ένα ευρύ φάσμα καρδιακών παθήσεων. Οι τρέχουσες κατευθυντήριες γραμμές υποστηρίζουν τη χρήση του σε ασθενείς μετά από οξύ στεφανιαίο σύνδρομο, αορτοστεφανιαία παράκαμψη ή επέμβαση αορτοστεφανιαίας παράκαμψης (bypass), τοποθέτηση στεφαναίας ενδοπρόθεσης, χειρουργική επέμβαση βαλβίδας και σταθερή χρόνια συστολική καρδιακή ανεπάρκεια. Η χρήση του σε αυτές τις συνθήκες υποστηρίζεται από αρκετές κατευθυντήριες οδηγίες ενώ πολλές έρευνες έχουν αποδείξει τα βελτιωμένα κλινικά αποτελέσματα. Παρά τα στοιχεία αυτά, η χρήση των προγραμμάτων αυτών παραμένει χαμηλή και θα πρέπει να αναπτυχθούν παρεμβάσεις για την αύξηση της εφαρμογής τους. Η καρδιακή αποκατάσταση (CR) είναι μια υπηρεσία αποδεδειγμένης αξίας, που είναι γνωστό ότι μειώνει τη θνησιμότητα, βελτιώνει την ποιότητα ζωής των ασθενών, την τροποποίηση των παραγόντων κινδύνου και το ψυχολογικό προφίλ. Παρά την αποτελεσματικότητά της, η CR συχνά υποχρησιμοποιείται. Στην Ελλάδα, η Καρδιακή Αποκατάσταση δεν είναι ευρέως διαθέσιμη, παρά τις προτάσεις της Ευρωπαϊκής Καρδιολογικής Εταιρείας.
description: Controlled exercise programs are a valuable treatment for patients with a wide range of heart conditions. Current guidelines support its use in patients after acute coronary syndrome, coronary artery bypass grafting, coronary stenting, valve surgery, and stable chronic systolic heart failure. Its use in these conditions is supported by several guidelines and many studies have demonstrated improved clinical outcomes. Despite these data, the use of these programs remains low, and interventions should be developed to increase their application. Cardiac rehabilitation (CR) is a service of proven value, known to reduce mortality, and improve patient quality of life, risk factor modification, and psychological profile. Despite its effectiveness, CR is often underutilized. In Greece, Cardiac Rehabilitation is not widely available, despite the recommendations of the European Society of Cardiology.
Influence of electrical current on processes of magnetization in amorphous ribbons
Creators: name: Horvat., Josip
Publisher: name: Monash University
Year: 2021

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Singularities of plane complex curves and limits of Kähler metrics with cone singularities. I: Tangent Cones
Creators: name: de Borbon, Martin
Publisher: name: arXiv
Year: 2016
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics

description: We construct and classify, in the case of two complex dimensions, the possible tangent cones at points of limit spaces of non-collapsed sequences of Kähler-Einstein metrics with cone singularities.
description: Reference to Panov's Polyhedral Kahler Manifolds added
Open Access initiatives across tertiary vocational education in Aotearoa New Zealand
Creators: name: Savage, James L
Publisher: name: Zenodo
Year: 2022

description: Vocational Education in Aotearoa New Zealand has been undergoing a major reorganization since 2019 through the Reform of Vocational Education (RoVE). As part of this process, all 16 Institutes of Technology and Polytechnics (ITPs) and all Industry Training Organizations are being brought together to create Te Pūkenga: a single organization that will be the largest and most widespread tertiary education provider in the country. Te Pūkenga is expected to manage around 240,000 students across 168 campuses, and will offer applied courses at secondary through to doctoral level. At present, scholarly publishing among the 16 formerly independent ITPs reflects their diverse regional character, with a total of 14 peer-reviewed journals published across a variety of fields. Of these, 12 have no publication or subscription fees, demonstrating a broad commitment to open access across the sector. Several ITPs also publish open access books, monographs, or other occasional publications, and make student research dissertations and theses available through open repositories; five collaborate on a shared ‘Research Bank’ that also includes staff research. However, as each ITP generates a relatively small number of research outputs and theses, and each has few dedicated staff to support publishing or open access, the sector has significant scope for improvement through greater collaboration and sharing of best practice. The establishment of Te Pūkenga as a diverse national network for vocational education will facilitate sharing of best practice, but also provides an opportunity to firmly establish open access principles across the newly unified sector. This presentation will explore some of the opportunities and challenges associated with this transition.
Measurement of B^0_d-¯B^0_d Mixing Rate from the Time Evolution of Dilepton Events at the Y(4S)
Creators: name: Abe, K.
name: Adachi, I.
name: Aihara, H.
name: Akatsu, M.
name: Sup Ahn, Byoung
Publisher: name: The American Physical Society
Year: 2001
Subjects: subject: 530

description: Physical Review Letters
Transverse Optical Pumping with Polarization-Modulated Light
Creators: name: Suter, Dieter
name: Klepel, Harald
Publisher: name: Elsevier
Year: 2002
Subjects: subject: 530

description: Optical pumping in a transverse magnetic field can be significantly enhanced if the polarization of the pump beam is modulated at a frequency near the Larmor frequency of the atomic system or a submultiple thereof. We give a theoretical analysis of the associated dynamics and present experimental results from the ground state of atomic sodium.
Μελέτη για τα συστήματα ηλεκτρονικής μάθησης στη δασοπεριβαλλοντική εκπαίδευση
Creators: name: Κλειδαρά, Χριστίνα Δήμου
Publisher: name: Aristotle University of Thessaloniki
Year: 2022
Subjects: Εξ αποστάσεως εκπαίδευση
Επαγγελματική κατάρτιση
Περιβαλλοντική εκπαίδευση
Distance learning
Vocational training
Environmental education

description: Οι οικονομικές, επαγγελματικές και τεχνολογικές εξελίξεις στον τομέα της εργασίας έχουν επιβάλει έναν τρόπο ζωής που επίκεντρο έχει την εξειδικευμένη εργασία. Η αύξηση της ανεργίας και η ανάπτυξη της τεχνολογίας προτάσσουν την ανάγκη απόκτησης ικανών γνώσεων, προκειμένου οι πολίτες να ανταποκριθούν στις ανάγκες της σύγχρονης κοινωνίας. Δεδομένου ότι η έλλειψη ελεύθερου χρόνου και οι οικογενειακές, επαγγελματικές και κοινωνικές υποχρεώσεις λειτουργούν ανασταλτικά στην απόκτηση ενός τίτλου σπουδών ή διπλώματος κατάρτισης, η εξ αποστάσεως εκπαίδευση έρχεται να καλύψει αυτό το κενό και να προσφέρει τη γνώση σε συνειδητοποιημένους εκπαιδευομένους. Η παρούσα εργασία θα εστιάσει στην περίπτωση της αγροτικής εκπαίδευσης και στη συμβολή της εξ αποστάσεως εκπαίδευσης για να επιτευχθούν αρτιότερα οι στόχοι της, που αφορούν, την πληροφόρηση, την κατάρτιση και συμβουλευτική, την τεχνική υποστήριξη και την ανατροφοδότηση των νέων αγροτών.
description: The economic, professional and technological developments in the field of work have imposed a lifestyle that focuses on specialized work. Rising unemployment and the development of technology suggest the need to acquire competent knowledge in order for citizens to meet the needs of modern society. As the lack of free time and family, professional and social obligations act as a barrier to obtaining a degree or diploma, distance education comes to fill this gap and offer knowledge to conscious learners. The present work will focus on the case of rural education and the contribution of distance education in order to better achieve its objectives, which concern information, training and counseling, technical support and feedback for young farmers
Full adaptation to smoothness using randomly truncated series priors with Gaussian coefficients and inverse gamma scaling
Creators: name: van Waaij, Jan
name: van Zanten, Harry
Publisher: name: arXiv
Year: 2016
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: We study random series priors for estimating a functional parameter (f\in L^2[0,1]). We show that with a series prior with random truncation, Gaussian coefficients, and inverse gamma multiplicative scaling, it is possible to achieve posterior contraction at optimal rates and adaptation to arbitrary degrees of smoothness. We present general results that can be combined with existing rate of contraction results for various nonparametric estimation problems. We give concrete examples for signal estimation in white noise and drift estimation for a one-dimensional SDE.
Incommensurate short-range multipolar order parameter of phase II in Ce3Pd20Si6
Creators: name: Portnichenko, P. Y.
name: Paschen, S.
name: Prokofiev, A.
name: Vojta, M.
name: Cameron, A. S.
name: Mignot, J. -M.
name: Ivanov, A.
name: Inosov, D. S.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The clathrate compound Ce3Pd20Si6 is a heavy-fermion metal that exhibits magnetically hidden order at low temperatures. Reputedly, this exotic type of magnetic ground state, known as "phase II", could be associated with the ordering of Ce 4f quadrupolar moments. In contrast to conventional (dipolar) order, it has vanishing Bragg intensity in zero magnetic field and, as a result, has escaped direct observation by neutron scattering until now. Here we report the observation of diffuse magnetic neutron scattering induced by an application of magnetic field along either the [110] or the [001] direction within phase II. The broad elastic magnetic signal that surrounds the (111) structural Bragg peak can be attributed to a short-range G-type antiferromagnetic arrangement of field-induced dipoles modulated by the underlying multipolar order on the simple-cubic sublattice of Ce ions occupying the 8c Wyckoff site. In addition, for magnetic fields applied along the [001] direction, the diffuse magnetic peaks in Ce3Pd20Si6 become incommensurate, suggesting a more complex modulated structure of the underlying multipolar order that can be continuously tuned by a magnetic field.
description: 6 pages, 5 figures, to be published in Phys. Rev. B
title: Efficient implementations of the quantum Fourier transform
title: an experimental perspective
titleType: AlternativeTitle
Creators: name: Suter, Dieter
name: Dorai, Kavita
Publisher: name: World Scientific
Year: 2005
Subjects: subject: 530

description: The Quantum Fourier transform (QFT) is a key ingredient in most quantum algorithms. We have compared various spin-based quantum computing schemes to implement the QFT from the point of view of their actual time-costs and the accuracy of the implementation. We focus here on an interesting decomposition of the QFT as a product of the non-selective Hadamard transformation followed by multiqubit gates corresponding to square- and higher-roots of controlled-NOT gates. This decomposition requires only O(n) operations and is thus linear in the number of qubits n. The schemes were implemented on a two-qubit NMR quantum information processor and the resultant density matrices reconstructed using standard quantum state tomography techniques. Their experimental fidelities have been measured and compared.
Αξιολόγηση του δείκτη ESG σε ξένες και εγχώριες επιχειρήσεις
Creators: name: Λιάλια, Ευγενία Βασιλείου
Publisher: name: Aristotle University of Thessaloniki
Year: 2022
Subjects: ESG (Περιβαλλοντικοί, Κοινωνικοί και Εταιρικής Διακυβέρνησης)
Εταιρική διακυβέρνηση
Περιβαλλοντικοί παράγοντες
ESG (Environmental, Social and Governance)
Corporate governance
Environmental factors

description: Η παρούσα διπλωματική εργασία αποσκοπεί στην βαθύτερη μελέτη του τρόπου αξιοποίησης δεδομένων ESG. Τα τελευταία χρόνια όλο και περισσότερες επιχειρήσεις δημοσιεύουν και χρησιμοποιούν δεδομένα και δείκτες ESG. Παρόλο που πολλοί συσχετίζουν τις υψηλές επιδόσεις ESG με την υψηλή απόδοση και την υψηλότερη ανθεκτικότητα σε χρηματοοικονομικά σοκ, ελάχιστες πληροφορίες υπάρχουν ως προς τον ακριβή λόγο που οι εταιρείες και οι επενδυτές ενσωματώνουν τους δείκτες ESG στις επενδυτικές διαδικασίες. Αρχικά γίνεται μια εκτενής μελέτη της υπάρχουσας βιβλιογραφίας με σκοπό την αποσαφήνιση του όρου ESG. Δίνεται ιδιαίτερη σημασία στους τρεις παράγοντες E (environmental), S (social) και G (governance), στην επίδραση τους καθώς και του δείκτη στις επιχειρήσεις και την λειτουργία τους. Στην συνέχεια γίνεται ανάλυση των δεδομένων ESG που παρέχει η πλατφόρμα Refinitiv. Ειδικότερα γίνεται ανάλυση των παγκόσμιων τάσεων, των κλάδων με την μεγαλύτερη συμμετοχή σε θέματα ESG, την συμμετοχή των ελληνικών επιχειρήσεων σε τέτοια ζητήματα ενώ ακόμα συγκρίνεται η κατάσταση στην Ελλάδα με την κατάσταση σε άλλες χώρες με παρόμοιο ΑΕΠ και παρόμοιο πληθυσμό. Με χρήση της υπάρχουσας βιβλιογραφίας και την ανάλυση των στατιστικών δεδομένων, γίνεται μια προσπάθεια περαιτέρω διερεύνησης της χρήσης και της σημαντικότητας των δεικτών ESG τόσο για της επιχειρήσεις όσο και για τα κράτη.
description: This paper aims to study in more depth how to use ESG data. In recent years, more and more companies are publishing and using ESG data and indicators. Although many associate high-performance ESG with high returns and higher resilience to financial shocks, little is known about why companies and investors incorporate ESGs into their investment processes. An extensive study of the existing literature is initially performed in order to clarify the term ESG. Particular importance is given to the three factors E (environmental), S (social) and G (governance), their impact as well as the index in companies and their operation. The ESG data provided by Refinitiv is then analyzed. In particular, an analysis is made of global trends, the sectors with the largest participation in ESG issues, the participation of Greek companies in such issues, while the situation in Greece is still compared with the situation in other countries with similar GDP and similar population. Using the existing literature and the analysis of statistical data, an attempt is made to further explore the use and importance of ESG indicators for both companies and countries.
High precision dimensional measurements from X-ray tomographic images
Creators: name: Horney., Russell B.
Publisher: name: Monash University
Year: 2021

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Development of a SiPM Pixel Prototype for the Large-Sized Telescope of the Cherenkov Telescope Array
Creators: name: Depaoli, D.
name: Chiavassa, A.
name: Corti, D.
name: Di Pierro, F.
name: Mariotti, M.
name: Rando, R.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The Cherenkov Telescope Array (CTA) will be the next generation ground-based gamma-ray observatory. CTA consists of different telescope types of which the largest ones (Large-Sized Telescopes, LSTs) cover the lower energy range, between 20 GeV and 200 GeV. The first LST is currently being commissioned at the Roque de los Muchachos Observatory, La Palma, Canary Islands. Its camera has 1855 photomultipliers (PMTs) with 1.5 inch cathodes. Silicon Photomultipliers (SiPMs) are increasingly becoming valid alternatives to PMTs also in gamma-ray astronomy. In the context of the LST project, there is an effort to study a novel Advanced Camera, equipped with SiPMs and a completely redesigned electronics based on a fully digital approach. To study and develop solutions on the sensors of these camera, we built a prototype camera module with a fully re-designed pre-amplifying stage and sensor bias control while re-using the digitizing and triggering stages of the existing LST camera module. We report on the design choices made to achieve the highest performance in terms of timing and charge resolution and the laboratory measurements validating those choices.
description: Accepted for publication in Nuclear Instruments and Methods in Physics Research A
Our mutual friend, no. 04
Creators: name: Dickens, Charles, 1812-1870
Publisher: name: University of Victoria Libraries
Year: 2018
Subjects: subject: Inheritance and succession
valueUri: http://id.worldcat.org/fast/973371
subject: Social classes
valueUri: http://id.worldcat.org/fast/1122346
subject: Social conflict
valueUri: http://id.worldcat.org/fast/1122378
subject: Families
valueUri: http://id.worldcat.org/fast/1728849

description: Last complete novel completed by Charles Dickens and is one of his most sophisticated works, combining savage satire with social analysis. In the opening chapters a body is found in the Thames and identified as that of John Harmon, a young man recently returned to London to receive his inheritance. Were he alive, his father's will would require him to marry Bella Wilfer, a beautiful, mercenary girl whom he had never met. Instead, the money passes to the working-class Boffins, and the effects spread into various corners of London society. Issued monthly from May 1864 to November 1865 in illustrated green paper covers. Chapters 11-13: Chapter 11. Podsnappery -- Chapter 12. The sweat of an honest man's brow -- Chapter 13. Tracking the bird of prey