cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Informed Machine Learning, Centrality, CNN, Relevant Document Detection, Repatriation of Indigenous Human Remains
Creators: name: Bashar, Md Abul
name: Nayak, Richi
name: Knapman, Gareth
name: Turnbull, Paul
name: Fforde, Cressida
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computation and Language (cs.CL)
subject: Artificial Intelligence (cs.AI)
subject: Computers and Society (cs.CY)
subject: Information Retrieval (cs.IR)
subject: Machine Learning (cs.LG)
subject: Social and Information Networks (cs.SI)
subject: FOS: Computer and information sciences

description: Among the pressing issues facing Australian and other First Nations peoples is the repatriation of the bodily remains of their ancestors, which are currently held in Western scientific institutions. The success of securing the return of these remains to their communities for reburial depends largely on locating information within scientific and other literature published between 1790 and 1970 documenting their theft, donation, sale, or exchange between institutions. This article reports on collaborative research by data scientists and social science researchers in the Research, Reconcile, Renew Network (RRR) to develop and apply text mining techniques to identify this vital information. We describe our work to date on developing a machine learning-based solution to automate the process of finding and semantically analysing relevant texts. Classification models, particularly deep learning-based models, are known to have low accuracy when trained with small amounts of labelled (i.e. relevant/non-relevant) documents. To improve the accuracy of our detection model, we explore the use of an Informed Neural Network (INN) model that describes documentary content using expert-informed contextual knowledge. Only a few labelled documents are used to provide specificity to the model, using conceptually related keywords identified by RRR experts in provenance research. The results confirm the value of using an INN network model for identifying relevant documents related to the investigation of the global commercial trade in Indigenous human remains. Empirical analysis suggests that this INN model can be generalized for use by other researchers in the social sciences and humanities who want to extract relevant information from large textual corpora.
description: Accepted Version of the Journal Article
The finite basis problem for the monoid of 2 by 2 upper triangular tropical matrices
Creators: name: Chen, Yuzhu
name: Hu, Xun
name: Luo, Yanfeng
name: Sapir, Olga
Publisher: name: arXiv
Year: 2015
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics

description: For each positive $n$, let $u_n = v_n$ denote the identity obtained from the Adjan identity $(xy) (yx) (xy) (xy) (yx) = (xy) (yx) (yx) (xy) (yx)$ by substituting $(xy) \rightarrow (x_1 x_2 \dots x_n)$ and $(yx) \rightarrow (x_n \dots x_2 x_1)$. We show that every monoid which satisfies $u_n = v_n$ for each positive $n$ and generates the variety containing the bicyclic monoid is nonfinitely based. This implies that the monoid of 2 by 2 upper triangular tropical matrices over the tropical semiring is nonfinitely based.
description: published in Bull. Aust. Math. Soc
As It Is Written: Textualism and Its Impact on Rape Prosecution
Creators: name: Luke, Oliana
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2017

description: Every state has its own legal definition of rape and sexual assault, and each one can be
drastically different from another. A single set of actions can be interpreted either as a felony or a legal affair, simply depending on which state you are in. The purpose of this thesis is to examine if and how the differences in these legal definitions of rape manifest themselves in criminal proceedings.
Ultimately, I show that the way a rape law is defined impacts how many perpetrators are
arrested for this crime. Specifically, laws that include consent as the crux of the definition and intoxication as a mitigating factor to consent are associated with significant increases in arrest rates, while other aspects of the law do not impact the arrest rates. So, if a legislature wants to implement rape laws that are victim friendly and based on feminist principles, adding legal stipulations about positive consent and intoxication as a mitigating factor are essential.
Russian Minorities and Contemporary Geopolitics in Russia's "Near Abroad"
Creators: name: Brown, Nathanael
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2018

description: This paper will argue that, though the many close similarities between Russian minorities in three case-study states (Ukraine, Estonia, and Latvia) should make them almost equally compelling targets to a Russia driven by an ethno-mythological, pan-Slavic view (so commonly assumed among today’s Western critics), in reality only the “weak links” in Russia’s near abroad are targeted. The paper will analyze factors on both the Russian and Russian minority sides, attempting to ascertain which characteristics of a Russian minority increase its geopolitical desirability to Russia and the likelihood of Russian interference in the sovereignty of its state, while equally importantly addressing the qualities that make a Russian minority in a border state more open to Russian involvement. Utilizing a three-variable format, this paper concludes that Russian minority identity and exploitability, while often overridden by other factors (as in the Baltics), often constitute the deciding factor in marginal cases of great geopolitical significance (as in Ukraine). After discussing these factors in detail, the paper concludes by generalizing its conclusions to other areas of Russia’s “Near Abroad.”
A-grupi streptokokkinfektsioon lastel
Creators: name: Jõgi, Piia
name: Tamm, Eda
Publisher: name: Eesti Arst
Year: 2023

description: Alates 2022. aastast on nii Euroopas kui mujal maailmas suurenenud laste seas A-grupi beetahemolüütilise streptokoki (Streptococcus pyogenes) põhjustatud haigestumus ja ka surmaga lõppenud haigusjuhtude arv. Mikroobi põhjustatud haiguste spekter on väga lai alates farüngiidist ja sarlakitest kuni eluohtlike invasiivsete infektsioonideni. Haigestumuse suurenemise põhjused on tõenäoliselt mitmetegurilised, kuid paljuski seotud COVID-19-pandeemia ajal rakendatud erinevate meetmetega. Ülevaate eesmärk on kirjeldada A-grupi beetahemolüütilise streptokoki põhjustatud haigusi, diagnostikat ja ravi.
description: Eesti Arst, 2023: September
صور الموت في العرض المسرحي العراقي
Creators: name: Aldaghlawy, Hayder Jaafar
Publisher: name: figshare
Year: 2022
Subjects: Drama, theatre and performance studies

description: يتناول البحث مفهوم الموت بوصفه من الظواهر المهمة التي ألقت بظلالها على طبيعة الفرد وكيانه . وأهتمت الحضارات والديانات الإنسانية بشقيها السماوية والوضعية بالموت وتباينت النظرة له كل حسب معتقداته وسلوكياته. ومع تطور الفكر الإنساني أخذت تظهر تيارات ومدارس في مختلف العلوم بدراسة تلك الظاهرة. وبخاصة بعد اندلاع الحرب العالمية وما أفرزته من إرهاصات في حياة الإنسان على كافة الاصعدة لاسيما الاجتماعي والاقتصادي ونظراً لما يتمتع به المسرح من خصوصية في الاتصال والتلقي جاءت تلك الدراسة لتسلط الضوء على ظاهرة الموت وقد تضمنت هذه الدراسة مقدمة البحث التي عرض فيها الباحثان مشكلة البحث وأهميته وهدفه. ثم الاطار النظري الذي تناول تأسيساً نظرياً للبحث اشتمل على مبحثين هما: الموت في الحضارات والديانات القديمة والثاني: الموت في المسرح العالمي وخرج الباحثان بمجموعة من المؤشرات أعتمدها في تحليل نموذج عينة البحث والتي تحددت بنموذج للكاتب علي عبدالنبي الزيدي والتي تتوافق مع هدف البحث. وبعد التحليل خرج الباحثان بمجموعة نتائج منها: 1. أثار العرض حفيظة بعض المتخصصين من خلال الجرأة في كسر حاجز التابو وتهشيم فكرة المقدس. 2. تعددت صور الموت في العرض فتارة بين التفجيرات وتارة أخرى بين الخطف والقتل. 3. أضفت بعض الرموز صوراً مضمرة للموت ومنها العباءة.
On the comparison of energy sources: feasibility of radio frequency and ambient light harvesting
Creators: name: Korotkevich, Alexander O.
name: Galochkina, Zhanna S.
name: Lavrova, Olga
name: Coutsias, Evangelos
Publisher: name: arXiv
Year: 2015
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: With growing interest in multi source energy harvesting including integrated microchips we propose a comparison of radio frequency (RF) and solar energy sources in a typical city. Harvesting devices for RF and solar energy will be competing for space of a compact micro or nano device as well as for orientation with respect to the energy source. This is why it is important to investigate importance of every source of energy and make a decision whether it will be worthwhile to include such harvesters. We considered theoretically possible irradiance by RF signal in different situations, typical for the modern urban environment and compared it with ambient solar energy sources available through the night, including moon light. Our estimations show that solar light energy dominates by far margin practically all the time, even during the night, if there is a full moon in the absence of clouds. At the same time, in the closed compartments or at the new moon RF harvesting can be beneficial as a source of "free" energy.
description: 8 pages, 1 table
Critical, Biographical, and Psychiatric Lenses of Virginia Woolf's Biography and Related Literature
Creators: name: Reed, Abigail
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2017

description: This project is valuable because it considers three out of the many diverse voices on
Woolf. Like other researchers, I have to decide which analysis of her I view as most accurate. In presenting the values and limitations to these three approaches to studying her, I am contributing to the broader understanding of Virginia Woolf. What follows are chapters discussing the critical, biographical, and psychiatric lenses of viewing Woolf, approaches that were chosen because they consider how her mental illness and literature relate to each other. I critique and acknowledge the strengths and weaknesses that come with each lens. With the critical approach, I examine the characteristics of headnotes: how the genre gives context to the reader about both the writer’s biography and literary accomplishments, but ultimately, how the Norton headnotes speaks towards Woolf in a more reductive way than it uses when discussing male writers with similar histories. Using the Norton headnote as an example of literary criticism on Woolf does not mean that it is representative of all literary criticism about her. Rather, headnotes exist almost
as their own subgenre and can provide an example of how her biography and literature are paired together. With the biographical approach, I consider the way Woolf’s personality and history are presented holistically by Lee, but also how her failure to draw definite conclusions leaves readers wanting more. In the psychiatric approach, I consider how Dr. Thomas Szasz argues that Woolf’s symptoms were used to manipulate those around her. Ultimately, however, I discuss how he refuses to consider all of the evidence available when making these claims about Woolf.
Neither Black nor White: Louisiana Creoles of Color, South African Coloureds and the Struggle for Identity, Nationhood, and Belonging
Creators: name: Lerner, Griffin
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2015

description: This thesis presents a comparative history of two mixed-race groups within Reconstruction Louisiana and apartheid South Africa in order to examine the nature of and agenda behind racial construction. Using existing histories, explorations of racial structures, and personal accounts from Creoles of Color and Coloureds, as well as white Louisianans and South Africans, this thesis seeks to answer how, why, and to what effect is race socially constructed. In Louisiana, whites, who represented the majority of the population, engaged in lengthy semantic arguments to distance themselves racially from Creoles of color, who were subsequently lumped into the monolithic African-American race despite having limited cultural similarities to freedman. A tri-caste racial system became bifurcated as Creoles of color legally became black minorities. In South Africa, minority Afrikaners asserted their own differences from Coloureds while simultaneously differentiating Coloureds from black Africans as well. While whites controlled the power structure, Coloureds occupied a middle ground between whites and blacks, and many apartheid laws did not affect Coloureds as severely. Whites in South Africa represented less than twenty percent of the population, so they sought to construct a racial system that would discourage solidarity between non-white groups by affording different privileges to different groups.
Reaction-Diffusion Degradation Model for Delayed Erosion of Cross-Linked Polyanhydride Biomaterials
Creators: name: Domanskyi, Sergii
name: Poetz, Katie L.
name: Shipp, Devon A.
name: Privman, Vladimir
Publisher: name: arXiv
Year: 2015
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We develop a theoretical model to explain the long induction interval of water intake that precedes the onset of erosion due to degradation caused by hydrolysis in the recently synthesized and studied cross-linked polyanhydrides. Various kinetic mechanisms are incorporated in the model in an attempt to explain the experimental data for the mass loss profile. Our key finding is that the observed long induction interval is attributable to the nonlinear dependence of the degradation rate constants on the local water concentration, which essentially amounts to the breakdown of the standard rate-equation approach, potential causes for which are then discussed. Our theoretical results offer physical insights into which microscopic studies will be required to supplement the presently available macroscopic mass-loss data in order to fully understand the origin of the observed behavior.
Burst Tails from SGR J1550-5418 Observed with Rossi X-ray Timing Explorer
Creators: name: Mus, Sinem Sasmaz
name: Gogus, Ersin
name: Kaneko, Yuki
name: Chakraborty, Manoneeta
name: Aydin, Berk
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present the results of our extensive search using the Bayesian block method for long tails following short bursts from a magnetar, SGR J1550-5418, over all RXTE observations of the source. We identified four bursts with extended tails, most of which occurred during its 2009 burst active episode. The durations of tails range between ~13 s and over 3 ks, which are much longer than the typical duration of bursts. We performed detailed spectral and temporal analysis of the burst tails. We find that the spectra of three tails show a thermal nature with a trend of cooling throughout the tail. We compare the results of our investigations with the properties of four other extended tails detected from SGR 1900+14 and SGR 1806-20 and suggest a scenario for the origin of the tail in the framework of the magnetar model.
description: 10 pages, 7 figures, 4 tables, accepted for publication in ApJ
Perceptions of nurses regarding their knowledge and competency levels in addressing issues of domestic abuse among pregnant and postpartum women
Creators: name: Timberlake, Rachel
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2015

description: This study focuses on the competency level of nurses who work on maternal units in addressing
matters of domestic abuse among pregnant and postpartum women. Barriers to screening for
intimate partner abuse were also identified. The study consisted of a convenience sample of 25
Registered Nurses from UNC Women’s Hospital in Chapel Hill, North Carolina. Participating
units included the Labor and Delivery unit, the Mother/Baby (Postpartum) unit, and the
Obstetrics and Gynecology unit at UNC Women’s Hospital. Participants completed an
anonymous survey containing questions regarding their knowledge and comfort level in
addressing issues of domestic abuse, as well as barriers to screening for intimate partner abuse on
their unit. Of the 80 percent of participants (n=20) who indicated that they have encountered
patients who have disclosed being a victim of domestic abuse, 95 percent (n=19) indicated that
they felt prepared to handle the situation within their scope of practice. However, a number of
participants identified insufficient screening time, and lack of privacy as barriers to screening. It
was concluded that further research is needed on identifying time efficient, confidential
screening techniques on domestic abuse that can safely be incorporated with patients regardless
of the presence of other visitors.
The significance of sAPPα production to increase cell viability in Alzheimer’s disease cell models
Creators: name: Bracewell, Joshua
Publisher: name: Lancaster University
Year: 2023
Subjects: Alzheimer's disease
Plasmid transfection
Amyloid precursor protein

description: Alzheimer’s disease (AD) is a currently incurable disease. The amyloid hypothesis on causation relates to amyloid precursor protein (APP) which is processed to release soluble APP (α or β) (sAPP) and possibly amyloid β (Aβ) peptides. The Aβ can then form amyloid plaques and are neurotoxic in the brain, newly approved antibodies target Aβ but are not a cure. sAPPα is another possibility predominantly released by ADAM10 processing of APP and has been linked to many neuroprotective/neuroproliferative effects. The objective of this research is to examine the role of APP processing in AD cell models and explore therapies to enhance sAPPα. Fibrates have previously been used to increase sAPPα release and we tested this in the AD-related cell model Swedish mutant APP695 (SweAPP)-SH-SY5Y. However, the fibrates were found to not enhance release of sAPPα via ADAM10 expression. Subsequently, APP processing was examined for Mock-, wild-type APP695- (wtAPP-), SweAPP- and BACE1-transfected SH-SY5Y Cells, where BACE1 is responsible for amyloidogenic processing of APP to release sAPPβ and Aβ-peptides. It was found that the non-amyloidogenic release of sAPP was unaffected by batimastat (ADAM inhibitor) in SH-SY5Y-BACE1 cells, which could be due to the release of sAPPβ prime (sAPPβ’) by BACE1. By transfecting Mock- and BACE1-SH-SY5Y cells with sAPPα and sAPPβ’ constructs, the sAPPα/sAPPβ’ axis was shown to rescue the SH-SY5Y-BACE1 cell viability and highlighted the importance of sAPPα release to the cell. Further work is required to generate a functioning Tet-On system to create an inducible mammalian expression system to selectively overexpress sAPPα.
Integrability and trajectory confinement in $\mathcal{PT}$-symmetric waveguide arrays
Creators: name: Barashenkov, I V
name: Smuts, Frank
name: Chernyavsky, Alexander
Publisher: name: arXiv
Year: 2023
Subjects: subject: Optics (physics.optics)
subject: Mathematical Physics (math-ph)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: We consider $\mathcal{PT}$-symmetric ring-like arrays of optical waveguides with purely nonlinear gain and loss. Regardless of the value of the gain-loss coefficient, these systems are protected from spontaneous $\mathcal{PT}$-symmetry breaking. If the nonhermitian part of the array matrix has cross-compensating structure, the total power in such a system remains bounded -- or even constant -- at all times. We identify two-, three-, and four-waveguide arrays with cross-compensatory nonlinear gain and loss that constitute completely integrable Hamiltonian systems.
description: 10 pages, 4 figures
Algorithmization, requirements analysis and architectural challenges of TraConDa
Creators: name: Tiamiyu, Osuolale Abdulrahamon
Publisher: name: arXiv
Year: 2015
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: Globally, there are so much information security threats on Internet that even when data is encrypted, there is no guarantee that copy would not be available to third-party, and eventually be decrypted. Thus, trusted routing mechanism that inhibits availability of (encrypted or not) data being transferred to third-party is proposed in this paper. Algorithmization, requirements analysis and architectural challenges for its development are presented.
Comparing Low-Redshift Compact Dwarf Starbursts in the RESOLVE Survey with High-Redshift Blue Nuggets
Creators: name: Palumbo, Michael
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2018

description: We identify and characterize compact dwarf starburst galaxies in the RESOLVE survey, a volume-limited census of galaxies in the local universe, to probe the extent to which these galaxies are analogous to "blue nuggets," a class of intensely star-forming  compact dwarf galaxies at high redshifts. We compare the masses, star formation rates, stellar surface mass densities, projected axis ratios, and environmental contexts of our sample to expectations and observations of blue nuggets. We find that low-z blue nugget candidates in the RESOLVE survey are statistically analogous to their high-z counterparts, exhibiting masses, colors, and specific star formation rates (SSFR) consistent with past high-z observations. However, we find that the stellar surface mass densities of our low-z sample are on order 10^8 solar masses per kiloparsec squared, or about a dex lower than what is predicted and observed for high-z blue nuggets. Cosmological simulations and semianalytical models in recent years have suggested that blue nuggets form as the result of intense compaction events driven by either converging cosmic gas streams or wet minor mergers. In either formation scenario, simulations have additionally suggested that these galaxies should exhibit some degree of rotation along their minor axes and prolate morphology. We report 3D spectroscopy observations of four of low-z blue nugget analogues, from which we construct high-resolution velocity fields, examining the evidence for minor axis or otherwise misaligned rotation. We observe evidence for double nuclei in ~85% of our low-z blue nugget analogue sample, strongly favoring a merger origin for these objects. We additionally observe dynamically complex kinematics in the 3D spectroscopy observations with multiple components of rotation which are spatially consistent with the double nuclei detections, further suggesting recent wet minor mergers as the dominant formation mechanism for our low-z blue nugget analogues.
MAP Estimators for Piecewise Continuous Inversion
Creators: name: Dunlop, Matthew M.
name: Stuart, Andrew M.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Numerical Analysis (math.NA)
subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 62G05, 65N21, 49J55

description: We study the inverse problem of estimating a field $u$ from data comprising a finite set of nonlinear functionals of $u$, subject to additive noise; we denote this observed data by $y$. Our interest is in the reconstruction of piecewise continuous fields in which the discontinuity set is described by a finite number of geometric parameters. Natural applications include groundwater flow and electrical impedance tomography. We take a Bayesian approach, placing a prior distribution on $u$ and determining the conditional distribution on $u$ given the data $y$. It is then natural to study maximum a posterior (MAP) estimators. Recently (Dashti et al 2013) it has been shown that MAP estimators can be characterised as minimisers of a generalised Onsager-Machlup functional, in the case where the prior measure is a Gaussian random field. We extend this theory to a more general class of prior distributions which allows for piecewise continuous fields. Specifically, the prior field is assumed to be piecewise Gaussian with random interfaces between the different Gaussians defined by a finite number of parameters. We also make connections with recent work on MAP estimators for linear problems and possibly non-Gaussian priors (Helin, Burger 2015) which employs the notion of Fomin derivative. In showing applicability of our theory we focus on the groundwater flow and EIT models, though the theory holds more generally. Numerical experiments are implemented for the groundwater flow model, demonstrating the feasibility of determining MAP estimators for these piecewise continuous models, but also that the geometric formulation can lead to multiple nearby (local) MAP estimators. We relate these MAP estimators to the behaviour of output from MCMC samples of the posterior, obtained using a state-of-the-art function space Metropolis-Hastings method.
description: 53 pages, 21 figures
Software realization of the complex spectra analysis algorithm in R
Creators: name: Bakhrushin, Vladimir
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mathematical Software (cs.MS)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: Software realization of the complex spectra decomposition on unknown number of similarcomponents is proposed.The algorithm is based on non-linear minimizing the sum of squared residuals of the spectrum model. For the adequacy checking the complex of criteria is used.It tests the model residuals correspondence with the normal distribution, equality to zero of their mean value and autocorrelation. Also the closeness of residuals and experimental data variances is checked.
Semi-calibrated 2-currents are pseudo holomorphic, with applications
Creators: name: Bellettini, Costante
Publisher: name: arXiv
Year: 2015
Subjects: subject: Analysis of PDEs (math.AP)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53C38, 32Q60 49Q20 53B20 58A25

description: We show that any semi-calibration of degree 2 is locally induced by a smooth almost complex structure. We provide some applications of this result in the regularity theory for semi-calibrated 2-currents
How Prevention and Response Information About Risks Affect Perception
Creators: name: Beers, Melissa
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2018

description: Objectives: To compare the effects of two types of information, prevention and response, presented in medication guides and on patients’ perception of medication risks/benefits. Methods: Participants (N=215) were recruited using Amazon Mechanical Turk. The study utilized a 2x2 factorial design. The medication guide used in this study informed participants on the use of a hypothetical DMARD named Xelba. There were four versions of the medication guide that included variations of response and prevention information to a common side effect of a DMARD: infection. Data were collected via the internet. Results: Providing prevention and response information on the side effect of infection with the use of a DMARD did not affect participants’ perception of the medication. Conclusions: We found no evidence that providing prevention and response information about risks of a medication affects participants’ perception of the medication. More research on this topic should be completed to determine how to better format medication guides. Using a larger sample size to increase the power of the study, focusing on risk and prevention strategies that are less well known to participants, and using methods more similar to real life communication of medication information may reveal larger effects.
title: Αξιολόγηση των υπηρεσιών κινητής τηλεφωνίας με τη χρήση του μοντέλου SERVQUAL
title: Evaluation of mobile telephony services by using SERVQUAL model
Creators: name: Παπαδογιαννης Δημοσθενης
Publisher: name: Technical University of Crete
Year: 2023

description: Το ανταγωνιστικό περιβάλλον που επικρατεί μεταξύ των εταιριών κινητής τηλεφωνίας, οι συνεχείς τεχνολογικές εξελίξεις και οι αυξανόμενες απαιτήσεις των πελατών καθιστούν αναγκαία την αξιολόγηση των υπηρεσιών κινητής τηλεφωνίας. Οι στρατηγικές μάρκετινγκ που ακολουθούν οι μεγάλες εταιρίες του κλάδου έχουν ως στόχο την αύξηση του ποσοστού ικανοποίησης των πελατών με σκοπό τη διατήρηση και κυρίως την επέκταση του πελατολόγιου τους. Βασικός τους στόχος είναι η δημιουργία αφοσιωμένων πελατών.
Στην παρούσα διπλωματική εργασία γίνεται αξιολόγηση των παρεχόμενων υπηρεσιών κινητής τηλεφωνίας και μέτρηση ως προς την ποιότητα τους με την εφαρμογή του μοντέλου SERVQUAL. Για τους σκοπούς της εργασίας πραγματοποιείται βιβλιογραφική ανασκόπηση αναφορικά με την ποιότητα των υπηρεσιών κινητής τηλεφωνίας και το μοντέλο SERVQUAL, καθώς και έρευνα σε αντιπροσωπευτικό δείγμα πελατών κινητής τηλεφωνίας. Για τη συλλογή των δεδομένων χρησιμοποιείται κατάλληλα σχεδιασμένο ερωτηματολόγιο, σύμφωνα με τα πρότυπα του μοντέλου, το οποίο περιλαμβάνει τις πέντε βασικές διαστάσεις ποιότητας (απτότητα, αξιοπιστία, ασφάλεια, ανταπόκριση, ενσυναίσθηση).
Εκτιμάται η αντίληψη των πελατών πάνω στην προσφερόμενη υπηρεσία για κάθε διάσταση ποιότητας, η μέτρηση των προσδοκιών του πελάτη με βάση το εξαιρετικό επίπεδο μιας διάστασης ποιότητας και η μέτρηση της σημαντικότητας των διαστάσεων ποιότητας. Επιπρόσθετα, πραγματοποιείται σύντομη ανάλυση της υφιστάμενης κατάστασης του τομέα της κινητής τηλεφωνίας στην Ελλάδα, σε σύγκριση με τον αντίστοιχο του εξωτερικού, ενώ τα αποτελέσματα της έρευνας εστιάζονται στον προσδιορισμό των χασμάτων ανάμεσα στις προσδοκίες και τις αντιλήψεις των πελατών αναφορικά με τις προσφερόμενες υπηρεσίες.
Association of the Medication Regimen Complexity Index (MRCI) with Readmission Rate and Time to Readmission in a High-utilizer, Adult Psychiatric Population
Creators: name: Jean, Stephanie J.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2017

description: Objective: To assess the association of the Medication Regimen Complexity Index (MRCI) with psychiatric hospital readmission rate and time to hospital readmission in a high-utilization cohort. Methods: Adult patients admitted between July 2012 and March 2014 were identified if they had been discharged from an adult inpatient psychiatry service with greater than or equal to five psychiatric readmissions or at least one 30-day readmission in this time frame. Dosage form, frequency of dosing, and additional usage directions for each medication on each discharge were collected from the electronic pharmacy database, and complexity of the medication regimen was determined using
the 65-item validated Microsoft Access Version 1.0 medication regimen complexity electronic data capture tool. Statistical analysis was conducted using statistical software R, version 3.2.2, and Pearson’s correlation was used to calculate correlations.
Results: A total of 168 patients were identified. MRCI for psychotropic medications and total MRCI at first discharge were both found to be unrelated to the days between first discharge and first readmission (r=0.065, p=0.40 and r=0.0054, p=0.94, respectively). Average total MRCI was unrelated to average days between each readmission (r=0.064, p=0.41), but a statistically significant association was found between average MRCI for psychotropic medications and average days between each readmission (r=0.16, p=0.044). Both average MRCI for psychotropic medications and average total MRCI were found to be unrelated to readmission rate (r=0.11, p=0.16 and r=0.14, p=0.07, respectively). Average psychotropic medication count was found to be unrelated to readmission rate (r=0.11, p=0.17) but had a statistically significant association with average time to readmission (r=0.18, p=0.019). Conclusions: A more complex psychotropic medication regimen and a higher psychotropic medication count at discharge may result in a shorter time to readmission in a high-utilizer, adult psychiatric population. The impact of other medication-related factors and the clinical significance of the use of the MRCI must be determined in larger, long-term clinical trials.
Program Design and Evaluation of a New Clinical Consultation Protocol for Patients with Type 1 Diabetes in the Peking University People's Hospital in Beijing, China
Creators: name: Gadi, Sanjay
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2018

description: China has among the lowest incidence of type 1 diabetes (T1D) globally, but this incidence is rising T1D in China, complicated by multiple barriers including deficits in knowledge and motivation surrounding self-monitoring of blood glucose, fixed insulin regimen, limited time with physicians, and stigma, makes self-management difficult. Within this challenging context, T1D is poorly controlled in Beijing. This study aimed to evaluate a new clinical consultation protocol, which incorporated problem solving skills training, goal setting, and nutrition education delivered through a framework of motivational interviewing, for patients with T1D at the Peking University People’s Hospital in Beijing, China. From October 2017 through March 2018, 40 patients were recruited, with 23 completing follow up surveys 70.6±41.1 days later. Changes in patient satisfaction, diabetes self-management skill, and intention and motivation to self manage before and after receiving the new consultation were calculated. The study sample had a mean age of 41.7±16.1 years and mean T1D duration of 8.5±9.0 years, and was 55% female (n=22), 79% urban (n=31), and 62.5% college educated or higher (n=25). Average HbA1c was 9.9±2.3%, demonstrating poor glycemic control. A matched pair analysis demonstrated a significant increase of 8.2 (95% CI 3.9-12.4) in diabetes self-management skill score (n=20, p<0.001), and an increase of 1.2 (0.6-1.8) in motivation (n=19, p=0.028). A significant change in patient satisfaction score (p=0.796) and intention to self manage (0.329) was not demonstrated. We conclude that undergoing this new consultation improved patient self-management skill and motivation to self-manage, but did not improve patient satisfaction and intention to self-manage.
Exploring Nurse-Perceived Challenges and Rewards of Caring for Long-Term Ventilated Patients in an Intensive Care Unit
Creators: name: Barnes, Morgan
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2018

description: Progress in modern medicine has enabled critically ill patients, such as those in acute respiratory
distress, a chance to survive through mechanical ventilation. There is a growing population of
patients who receive mechanical ventilation for extended periods of time – at least 21 days for at
least six hours per day. While there is literature examining patient perception of ventilation in the
critical care unit, there is a gap in the literature regarding the nurse experience of caring for this
population in critical care units. The purpose of this descriptive, pilot study was to explore the
nurse-perceived challenges and rewards of caring for long-term ventilated patients in a critical
care unit and to identify strategies for addressing challenges in the context of a job satisfaction
framework. Three nurses from a regional hospital critical care unit participated in semistructured
interviews to yield detailed accounts of their experiences. Challenges identified
stemmed from patient attributes and caregiving, with a major theme of trust. Strategies for
addressing challenges uncovered team approaches that emphasized the importance of
collaboration and personal strategies related to introspection. Overcoming challenges was seen as
a reward, along with praise and recognition. Recognizing challenges, finding ways to control
challenges, and enhancing reward leads to job satisfaction. Therefore, awareness of these aspects
has the potential to promote job satisfaction, energy, and connectedness.
Subterranean production of neutrons, $^{39}$Ar and $^{21}$Ne: Rates and uncertainties
Creators: name: Šrámek, Ondřej
name: Stevens, Lauren
name: McDonough, William F.
name: Mukhopadhyay, Sujoy
name: Peterson, R. J.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Geophysics (physics.geo-ph)
subject: Nuclear Experiment (nucl-ex)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: Accurate understanding of the subsurface production rate of the radionuclide $^{39}$Ar is necessary for argon dating techniques and noble gas geochemistry of the shallow and the deep Earth, and is also of interest to the WIMP dark matter experimental particle physics community. Our new calculations of subsurface production of neutrons, $^{21}$Ne, and $^{39}$Ar take advantage of the state-of-the-art reliable tools of nuclear physics to obtain reaction cross sections and spectra (TALYS) and to evaluate neutron propagation in rock (MCNP6). We discuss our method and results in relation to previous studies and show the relative importance of various neutron, $^{21}$Ne, and $^{39}$Ar nucleogenic production channels. Uncertainty in nuclear reaction cross sections, which is the major contributor to overall calculation uncertainty, is estimated from variability in existing experimental and library data. Depending on selected rock composition, on the order of $10^7$-$10^{10}$ α particles are produced in one kilogram of rock per year (order of 1-$10^3$ kg$^{-1}$ s$^{-1}$); the number of produced neutrons is lower by $\sim6$ orders of magnitude, $^{21}$Ne production rate drops by an additional factor of 15-20, and another one order of magnitude or more is dropped in production of $^{39}$Ar. Our calculation yields a nucleogenic $^{21}$Ne/$^4$He production ratio of $(4.6\pm0.6) \times 10^{-8}$ in Continental Crust and $(4.2\pm0.5) \times 10^{-8}$ in Oceanic Crust and Depleted Mantle. Calculated $^{39}$Ar production rates span a great range from $29\pm9$ atoms kg-rock$^{-1}$ yr$^{-1}$ in the K-Th-U-enriched Upper Continental Crust to $(2.6\pm0.8) \times 10^{-4}$ atoms kg-rock$^{-1}$ yr$^{-1}$ in Depleted Upper Mantle. Nucleogenic $^{39}$Ar production exceeds the cosmogenic production below $\sim700$ meters depth and thus, affects radiometric ages of groundwater.
description: revised version; 6 figures, 10 tables, submitted to Geochimica et Cosmochimica Acta
The Past and Future of East Asia to Italy: Nearly Global VLBI
Creators: name: Giovannini, Gabriele
name: Cui, Yuzhu
name: Hada, Kazuhiro
name: Yi, Kunwoo
name: Ro, Hyunwook
name: Sohn, Bong Won
name: Takamura, Mieko
name: Buttaccio, Salvatore
name: D'Ammando, Filippo
name: Giroletti, Marcello
name: Hagiwara, Yoshiaki
name: Kino, Motoki
name: Kravchenko, Evgeniya
name: Maccaferri, Giuseppe
name: Melnikov, Alexey
name: Niinuma, Kota ro
name: Orienti, Monica
name: Wajima, Kiyoaki
name: Akiyama, Kazunori
name: Doi, Akihiro
name: Byun, Do-Young
name: Hirota, Tomoya
name: Honma, Mareki
name: Jung, Taehyun
name: Kobayashi, Hideyuki
name: Koyama, Shoko
name: Melis, Andrea
name: Migoni, Carlo
name: Murata, Yasuhiro
name: Nagai, Hiroshi
name: Sawada-Satoh, Satoko
name: Stagni, Matteo
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present here the East Asia to Italy Nearly Global VLBI (EATING VLBI) project. How this project started and the evolution of the international collaboration between Korean, Japanese, and Italian researchers to study compact sources with VLBI observations is reported. Problems related to the synchronization of the very different arrays and technical details of the telescopes involved are presented and discussed. The relatively high observation frequency (22 and 43 GHz) and the long baselines between Italy and East Asia produced high-resolution images. We present example images to demonstrate the typical performance of the EATING VLBI array. The results attracted international researchers and the collaboration is growing, now including Chinese and Russian stations. New in progress projects are discussed and future possibilities with a larger number of telescopes and a better frequency coverage are briefly discussed herein.
description: 15 pages and 6 figures. This article belongs to the Special Issue Challenges in Understanding Black Hole Powered Jets with VLBI
First Language Interference in the Learning Process of English as a Foreign Language in Young Learners.
Creators: name: Lopez, Michelle Ramirez
name: Rodriguez, Luis Carlos Navarro
Publisher: name: Zenodo
Year: 2020
Subjects: language, interference, english, young, learners, communication

description: This bibliographical thesis had as a general mission to analyze the first language interference process when learning English as a Foreign Language in young learners, with the idea of knowing to recognize how language interference affects the learning process, and in this manner identify learning strategies to avoid it. Have carried out this investigation was totally fruitful and helpful due to the need of change and innovation in Costa Rica`s classrooms, which have had many students who unconsciously always translate and compare with their mother tongue while learning English as a Foreign language. This thesis was based on the theoretical foundations of authors like Selinker (1972), Dulay (1982), Ellis (1997), Derakhshan & Elham (2015), Deller & Rinvolucri (2002), Guillon (2004). In agreement with the use methodology, it was catalogued as descriptive and its approach falls in qualitative due to the core of the investigation seeks to find out what are the interference factors over the learning process to come up with powerful and successful strategies in order to make a better engagement between students and the language . According to the results, most of authors concluded that the learning process might be affected by several factors, such as the excessive use of Spanish; however, the implementation of several methodologies and strategies to teach and learn a foreign language can make the difference.
Visualizing shifts in Founder Assignment for an Admixed Population of Mice caused by a New Genomic Build
Creators: name: Fan, Peter Jinchan
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: Populations of inbred laboratory mice are highly desirable as model organisms due to their
easily reproducible (isogenic) genomes. A combination of SNP genotyping arrays and a hidden Markov
model (HMM) algorithm have been used successfully to accurately determine the genetic architecture
of inbred mice. This HMM algorithm, known as the Founder Assignment algorithm, performs
statistical modeling on genotyping data to calculate the probability that a given segment of a mouse’s
genome was inherited from a particular founding strain of the population. However, the predictions
generated by this algorithm are sensitive to changes in the genomic positions of the SNP markers used
for genotyping. Although many groups have worked to improve the accuracy and resolution of HMM
algorithms, few have considered how new assemblies of the genome, in which entire sets of markers
may be reordered or removed, affect HMM predictions. In this study, the Founder Assignment
algorithm was adapted to work with a new assembly (Build 38) of the mouse genome. The algorithm
was then run on a collection of genotyping data from approximately 400 mice. A new visualization
tool, which more clearly displays the HMM probabilities, was developed in order to identify regions
where the algorithm assigned different founders between Build 38 and the previous build. In the future,
these insights will help us design versions of the algorithm to work with newer versions of the
genotyping array and with high-throughput sequencing data.
Optical properties of topological insulator Bragg gratings: Faraday rotation enhancement for TM polarized light at large incidence angles
Creators: name: Crosse, J. A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Using the transfer matrix formalism, we study the transmission properties of a Bragg grating constructed from a layered axionic material. Such a material can be realized by a topological insulator subject to a time-symmetry breaking perturbation, such as an external magnetic field or surface magnetic impurities. Whilst the reflective properties of the structure are only negligibly changed by the presence of the axionic material, the grating induces a Faraday rotation and ellipticity in the transmitted light. We find that for TM polarized light incident on a 16 layer structure at 76 degrees to the normal the Faraday rotation can approach ~232 mrad (~13 degrees), whilst interference from the multi-layered structure ensures high transmission. This is significantly higher than Faraday rotations for the TM polarization at normal incidences or the TE polarization at any incident angle. Thus, Bragg gratings in this geometry show a strong optical signal of the magneto-electric and, hence, provide an ideal system in which to observe this effect by optical means.
description: Updated to journal version with new title and new results. 8 pages, 6 figures
Waste Detection and Change Analysis based on Multispectral Satellite Imagery
Creators: name: Magyar, Dávid
name: Cserép, Máté
name: Vincellér, Zoltán
name: Molnár, Attila D.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: One of the biggest environmental problems of our time is the increase in illegal landfills in forests, rivers, on river banks and other secluded places. In addition, waste in rivers causes damage not only locally, but also downstream, both in the water and washed ashore. Large islands of waste can also form at hydroelectric power stations and dams, and if they continue to flow, they can cause further damage to the natural environment along the river. Recent studies have also proved that rivers are the main source of plastic pollution in marine environments. Monitoring potential sources of danger is therefore highly important for effective waste collection for related organizations. In our research we analyze two possible forms of waste detection: identification of hot-spots (i.e. illegal waste dumps) and identification of water-surface river blockages. We used medium to high-resolution multispectral satellite imagery as our data source, especially focusing on the Tisza river as our study area. We found that using satellite imagery and machine learning are viable to locate and to monitor the change of the previously detected waste.
description: 18 pages, 10 figures
Heat transport between antiferromagnetic insulators and normal metals
Creators: name: Brataas, Arne
name: Skarsvåg, Hans
name: Tveten, Erlend G.
name: Fjærbu, Eirik Løhaugen
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Antiferromagnetic insulators can become active spintronics components by controlling and detecting their dynamics via spin currents in adjacent metals. This cross-talk occurs via spin-transfer and spin-pumping, phenomena that have been predicted to be as strong in antiferromagnets as in ferromagnets. Here, we demonstrate that a temperature gradient drives a significant heat flow from magnons in antiferromagnetic insulators to electrons in adjacent normal metals. The same coefficients as in the spin-transfer and spin-pumping processes also determine the thermal conductance. However, in contrast to ferromagnets, the heat is not transferred via a spin Seebeck effect which is absent in antiferromagnetic insulator-normal metal systems. Instead, the heat is transferred via a large staggered spin Seebeck effect.
description: 4+ pages, 1 figure