cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
For Uninsured Cancer Patients, Outpatient Charges Can Be Costly, Putting Treatments Out Of Reach
Creators: name: Keating, N. L.
name: Dusetzina, S. B.
name: Basch, E.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2015

description: Reimbursement information for public and private payers has long been available. However, information about charges—the amounts that providers request before payments are negotiated—has been scarce, particularly for outpatient care. Using the new Medicare Provider Utilization and Payment Data Public Use File and other sources, we evaluated physician charges, reimbursements by Medicare and large private health plans, and expected patient cost sharing for outpatient oncology care. In 2012 the average Medicare reimbursement for chemotherapy was 39.6 percent of charges; for private insurance, the share was 55.7 percent. Uninsured patients faced potential prices for chemotherapy that were 2–43 times as much as the total Medicare allowed amount and 2–5 times as much as the private insurance allowed amount. Charges for outpatient chemotherapy and office visits were substantially higher than insurer-reimbursed amounts, which is consistent with previous evidence about hospital charges. The charges for outpatient services underscore the pressure that the current system places on people who are least able to pay. Encouraging rational pricing for health care services will be an important step toward ensuring access to care for everyone.
US Household Food Shopping Patterns: Dynamic Shifts Since 2000 And Socioeconomic Predictors
Creators: name: Ng, S. W.
name: Popkin, B. M.
name: Stern, D.
name: Gordon-Larsen, P.
name: Robinson, W. R.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2015

description: Under the assumption that differential food access might underlie nutritional disparities, programs and policies have focused on the need to build supermarkets in underserved areas, in an effort to improve dietary quality. However, there is limited evidence about which types of stores different income and race-ethnic households use. We used cross-sectional cluster analysis to derive shopping patterns from US households’ volume food purchases (Nielsen Homescan) by store from 2000–2012. Multinomial logistic regression identified household SES characteristics that were associated with shopping patterns in 2012. We found three shopping patterns: primary-grocery, primary-mass-merchandise, and combination cluster. In 2012, we found no income/race-ethnic differences for grocery cluster membership. However, low-income non-Hispanic blacks (vs. non-Hispanic whites) had a significantly lower probability of belonging to the mass-merchandise cluster. These varied shopping patterns must be considered in future policy initiatives. Further, it is important to continue studying the complex rationale for people’s food shopping patterns.
Graph Summarization via Node Grouping: A Spectral Algorithm
Creators: name: Merchant, Arpit
name: Mathioudakis, Michael
name: Wang, Yanhao
Publisher: name: arXiv
Year: 2022
Subjects: subject: Social and Information Networks (cs.SI)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Graph summarization via node grouping is a popular method to build concise graph representations by grouping nodes from the original graph into supernodes and encoding edges into superedges such that the loss of adjacency information is minimized. Such summaries have immense applications in large-scale graph analytics due to their small size and high query processing efficiency. In this paper, we reformulate the loss minimization problem for summarization into an equivalent integer maximization problem. By initially allowing relaxed (fractional) solutions for integer maximization, we analytically expose the underlying connections to the spectral properties of the adjacency matrix. Consequently, we design an algorithm called SpecSumm that consists of two phases. In the first phase, motivated by spectral graph theory, we apply k-means clustering on the k largest (in magnitude) eigenvectors of the adjacency matrix to assign nodes to supernodes. In the second phase, we propose a greedy heuristic that updates the initial assignment to further improve summary quality. Finally, via extensive experiments on 11 datasets, we show that SpecSumm efficiently produces high-quality summaries compared to state-of-the-art summarization algorithms and scales to graphs with millions of nodes.
description: Full version of the paper published at WSDM 2023
MINTAQA YER-SUV RESURSLARIDAN SAMARALI FOYDALANISH YO'LLARI (SIRDARYO VILOYATI MISOLIDA).
Creators: name: O'ng'arov, H.G'.
Publisher: name: Zenodo
Year: 2023

description: Ushbu maqolada Sirdaryo viloyatida amalga oshirilayotgan agrar islohotlar haqida ma'lumot berilgan. Qishloq xo'jaligini erkinlashtirish, klaster tizimini yaratish, ko'p tarmoqli fermer xo'jaliklarini shakllantirish, shuningdek, meva-sabzavot mahsulotlarini eksport qiluvchilarni qo'llab-quvvatlash bo'yicha fikr va mulohazalar ko'rsatib o'tilgan.
Percolation of averages in the stochastic mean field model: the near-supercritical regime
Creators: name: Ding, Jian
name: Goswami, Subhajit
Publisher: name: arXiv
Year: 2015
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60C05, 60G70

description: For a complete graph of size $n$, assign each edge an i.i.d.\ exponential variable with mean $n$. For $λ>0$, consider the length of the longest path whose average weight is at most $λ$. It was shown by Aldous (1998) that the length is of order $\log n$ for $λ< 1/\mathrm{e}$ and of order $n$ for $λ> 1/\mathrm{e}$. In this paper, we study the near-supercritical regime where $λ= \mathrm{e}^{-1} +η$ with $η>0$ a small fixed number. We show that there exist two absolute constants $c^*, C^*>0$ such that with high probability the length is in between $n \mathrm{e}^{-C^*/\sqrtη}$ and $n \mathrm{e}^{-c^*/\sqrtη}$. Our result corrects a non-rigorous prediction of Aldous (2005).
description: 21 pages, 3 figures
Search for heavy Majorana neutrinos in mu+/- mu+/- + jets events in proton-proton collisions at sqrt(s) = 8 TeV
Creators: name: CMS Collaboration
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: A search is performed for heavy Majorana neutrinos (N) using an event signature defined by two muons of the same charge and two jets (mu+/- mu+/- jj). The data correspond to an integrated luminosity of 19.7 inverse femtobarns of proton-proton collisions at a center-of-mass energy of 8 TeV, collected with the CMS detector at the CERN LHC. No excess of events is observed beyond the expected standard model background and upper limits are set on abs(V[mu,N])^2 as a function of Majorana neutrino mass m[N] for masses in the range of 40-500 GeV, where V[mu,N] is the mixing element of the heavy neutrino with the standard model muon neutrino. The limits obtained are abs(V[mu,N])^2 < 0.00470 for m[N] = 90 GeV, abs(V[mu,N])^2 < 0.0123 for m[N] = 200 GeV, and abs(V[mu,N])^2 < 0.583 for m[N] = 500 GeV. These results extend considerably the regions excluded by previous direct searches.
description: Submitted to Phys. Lett. B; published version
Optimal model of semi-infinite graphene for ab initio calculations of reactions at graphene edges by the example of zigzag edge reconstruction
Creators: name: Polynskaya, Yulia G.
name: Lebedeva, Irina V.
name: Knizhnik, Andrey A.
name: Popov, Andrey M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We investigate how parameters of the model of semi-infinite graphene based on a graphene nanoribbon under periodic boundary conditions affect the accuracy of ab initio calculations of reactions at graphene edges by the example of the first stage of reconstruction of zigzag graphene edges, formation of a pentagon-heptagon pair. It is shown that to converge properly the results, the nanoribbon should consist of at least 6 zigzag rows and periodic images of the pair along the nanoribbon axis should be separated by at least 6 hexagons. The converged reaction energy and activation barrier for formation of an isolated pentagon-heptagon pair are found to be -0.15 eV and 1.61 eV, respectively. It is also revealed that such defects reduce the graphene edge magnetization only locally but ordering of spins at opposite nanoribbon edges switches from the antiparallel (antiferromagnetic) to parallel one (ferromagnetic) upon increasing the defect density.
description: 19 pages, 7 figures
Measurement of the ratio of inclusive cross sections $σ(p\bar{p} \rightarrow Z+2~b \text{jets}) / σ(p\bar{p} \rightarrow Z+ \text{2 jets})$ in $p\bar{p}$ collisions at $\sqrt s=1.96$ TeV
Creators: name: D0 Collaboration
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We measure the ratio of cross sections, $σ(p\bar{p}\rightarrow Z+2~b~\text{jets})$/$σ(p\bar{p}\rightarrow Z+\text{2 jets})$, for associated production of a $Z$ boson with at least two jets with transverse momentum $p_T^{\rm jet} > 20$ GeV and pseudorapidity $|η^{\rm jet}| < 2.5$. This measurement uses data corresponding to an integrated luminosity of 9.7 fb$^{-1}$ collected by the \DO experiment in Run II of Fermilab's Tevatron \ppbar Collider at a center-of-mass energy of 1.96 TeV. The measured integrated ratio of $0.0236\pm0.0032\left(\mbox{stat}\right)\pm0.0035\left(\mbox{syst}\right)$ is in agreement with predictions from next-to-leading-order perturbative QCD and the Monte Carlo event generators {\sc pythia} and {\sc alpgen}.
GOOD-D: On Unsupervised Graph Out-Of-Distribution Detection
Creators: name: Liu, Yixin
name: Ding, Kaize
name: Liu, Huan
name: Pan, Shirui
Publisher: name: arXiv
Year: 2022
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Most existing deep learning models are trained based on the closed-world assumption, where the test data is assumed to be drawn i.i.d. from the same distribution as the training data, known as in-distribution (ID). However, when models are deployed in an open-world scenario, test samples can be out-of-distribution (OOD) and therefore should be handled with caution. To detect such OOD samples drawn from unknown distribution, OOD detection has received increasing attention lately. However, current endeavors mostly focus on grid-structured data and its application for graph-structured data remains under-explored. Considering the fact that data labeling on graphs is commonly time-expensive and labor-intensive, in this work we study the problem of unsupervised graph OOD detection, aiming at detecting OOD graphs solely based on unlabeled ID data. To achieve this goal, we develop a new graph contrastive learning framework GOOD-D for detecting OOD graphs without using any ground-truth labels. By performing hierarchical contrastive learning on the augmented graphs generated by our perturbation-free graph data augmentation method, GOOD-D is able to capture the latent ID patterns and accurately detect OOD graphs based on the semantic inconsistency in different granularities (i.e., node-level, graph-level, and group-level). As a pioneering work in unsupervised graph-level OOD detection, we build a comprehensive benchmark to compare our proposed approach with different state-of-the-art methods. The experiment results demonstrate the superiority of our approach over different methods on various datasets.
description: Accepted by WSDM 2023. 10 pages, 4 figures
Geometric auxetics
Creators: name: Borcea, Ciprian S.
name: Streinu, Ileana
Publisher: name: arXiv
Year: 2015
Subjects: subject: Metric Geometry (math.MG)
subject: Computational Geometry (cs.CG)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: I.3.5
subject: 52C25, 74N10

description: We formulate a mathematical theory of auxetic behavior based on one-parameter deformations of periodic frameworks. Our approach is purely geometric, relies on the evolution of the periodicity lattice and works in any dimension. We demonstrate its usefulness by predicting or recognizing, without experiment, computer simulations or numerical approximations, the auxetic capabilities of several well-known structures available in the literature. We propose new principles of auxetic design and rely on the stronger notion of expansive behavior to provide an infinite supply of planar auxetic mechanisms and several new three-dimensional structures.
Generalized quantum gravity condensates for homogeneous geometries and cosmology
Creators: name: Oriti, Daniele
name: Pranzetti, Daniele
name: Ryan, James P.
name: Sindoni, Lorenzo
Publisher: name: arXiv
Year: 2015
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We construct a generalized class of quantum gravity condensate states, that allows the description of continuum homogeneous quantum geometries within the full theory. They are based on similar ideas already applied to extract effective cosmological dynamics from the group field theory formalism, and thus also from loop quantum gravity. However, they represent an improvement over the simplest condensates used in the literature, in that they are defined by an infinite superposition of graph-based states encoding in a precise way the topology of the spatial manifold. The construction is based on the definition of refinement operators on spin network states, written in a second quantized language. The construction lends itself easily to be applied also to the case of spherically symmetric quantum geometries.
description: 32 pages, 6 figures; presentation improved and some typos corrected. Published version
Torques and angular momenta of fluid elements in the octonion spaces
Creators: name: Weng, Zi-Hua
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: The paper focuses on applying the octonions to explore the influence of the external torque on the angular momentum of fluid elements, revealing the interconnection of the external torque and the vortices of vortex streets. J. C. Maxwell was the first to introduce the quaternions to study the physical properties of electromagnetic fields. The contemporary scholars utilize the quaternions and octonions to investigate the electromagnetic theory, gravitational theory, quantum mechanics, special relativity, general relativity and curved spaces and so forth. The paper adopts the octonions to describe the electromagnetic and gravitational theories, including the octonionic field potential, field strength, linear momentum, angular momentum, torque and force and so on. In case the octonion force is equal to zero, it is able to deduce eight independent equations, including the fluid continuity equation, current continuity equation, and force equilibrium equation and so forth. Especially, one of the eight independent equations will uncover the interrelation of the external torque and angular momentums of fluid elements. One of its inferences is that the direction, magnitude and frequency of the external torque must impact the direction and curl of the angular momentum of fluid elements, altering the frequencies of Karman vortex streets within the fluids. It means that the external torque is interrelated with the velocity circulation, by means of the liquid viscosity. The external torque is able to exert an influence on the direction of downwash flows, improving the lift and drag characteristics generated by the fluids.
Neuroplasticity, Psychosocial Genomics, and the Biopsychosocial Paradigm in the 21st Century
Creators: name: Garland, E. L.
name: Howard, M. O.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2009

description: The biopsychosocial perspective is a foundation of social work theory and practice. Recent research on neuroplasticity and psychosocial genomics lends compelling support to this perspective by elucidating mechanisms through which psychosocial forces shape neurobiology. Investigations of neuroplasticity demonstrate that the adult brain can continue to form novel neural connections and grow new neurons in response to learning or training even into old age. These findings are complemented by the contributions of psychosocial genomics, a field of scientific inquiry that explores the modulating effects of experience on gene expression. Findings from these new sciences provide external validation for the biopsychosocial perspective and offer important insights into the manifold means by which socioenvironmental experiences influence neurobiological structure and function across the life course.
Societal Crises and Personal Sense-Making: Transitions, Mobility, and Imagination Across the Lifecourse
Creators: name: Muller Mirza, Nathalie
name: Zittoun, Tania
name: Gillespie, Alex
Publisher: name: Zenodo
Year: 2022
Subjects: Migration
Research

description: Societal Crises and Personal Sense-Making: Transitions, Mobility, and Imagination Across the Lifecourse is a project of the National Center of Competence "nccr – on the move "
Fertility Intent and Contraceptive Decision-Making Among HIV Positive and Negative Antenatal Clinic Attendees in Durban, South Africa
Creators: name: Marlow, Heather M.
name: Moodley, Dhayendre
name: Groves, Allison K.
name: Maman, Suzanne
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2012

description: We explored contraceptive decision-making among South African antenatal clinic attendees, fertility intent post-HIV diagnosis, and women’s experiences at government health facilities. Data are from in-depth interviews with HIV negative and HIV positive women. We interviewed women in Zulu; interviews were recorded, transcribed and translated. We conducted qualitative analyses of interviews. Women were the dominant decision-makers about contraceptive use, whether they involved their partners or not. A majority of women obtained a contraceptive method at a government facility; however, several women were unable to attain sterilizations. Women were presented with limited contraceptive options and were not always able to access services.
“I Get Angry If He's Always Drinking and We Have No Money”: Exploring Motivations for Male and Female Perpetrated Intimate Partner Violence in the Philippines
Creators: name: Fehringer, Jessica A.
name: Hindin, Michelle J.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014

description: Our objective was to describe the context of and motivations for female and male perpetrated IPV in Cebu, Philippines using data from in-depth interviews with 19 married women. We found three categories of IPV motivations --self-defense or retaliation, reactivity, and control. Motivations differed by gender, with women acting out of self-defense more often and men acting out of control more often. Effective IPV prevention and treatment programs should take these gender differences into consideration. Moreover, it is important to look at how IPV occurs within relationships and how this may vary by context and gender.
Trimness of Closed Intervals in Cambrian Semilattices
Creators: name: Mühle, Henri
Publisher: name: arXiv
Year: 2015
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05E15 (Primary), 06D75, 20F55 (Secondary)

description: In this article, we give a short algebraic proof that all closed intervals in a $γ$-Cambrian semilattice $\mathcal{C}_γ$ are trim for any Coxeter group $W$ and any Coxeter element $γ\in W$. This means that if such an interval has length $k$, then there exists a maximal chain of length $k$ consisting of left-modular elements, and there are precisely $k$ join- and $k$ meet-irreducible elements in this interval. Consequently every graded interval in $\mathcal{C}_γ$ is distributive. This problem was open for any Coxeter group that is not a Weyl group.
description: Final version. The contents of this paper were formerly part of my now withdrawn submission arXiv:1312.4449. 12 pages, 3 figures
Postpartum Family Planning Service Provision in Durban, South Africa: Client and Provider Perspectives
Creators: name: Moodley, Dhayendre
name: Maman, Suzanne
name: Marlow, Heather M.
name: Curtis, Siân
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014

description: Researchers in sub-Saharan Africa have found health facility factors influence client contraceptive use. We sought to understand how client provider interactions, discussion of side effects and HIV status influence women’s contraceptive use post-partum. We conducted in-depth interviews with 8 HIV negative clients and 6 HIV positive clients in Zulu and with 5 nurses in English. Interviews were translated and transcribed into English. We created a codebook and coded all transcripts. Nurses and clients reported limited time to discuss contraception, side effects and HIV. Nurses did not comply with national contraceptive policies and created unnecessary barriers to contraceptive use.
Orthogonal Frequency Division Multiplexed Quantum Key Distribution
Creators: name: Bahrani, Sima
name: Razavi, Mohsen
name: Salehi, Jawad A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose orthogonal frequency division multiplexing (OFDM), as a spectrally efficient multiplexing technique, for quantum key distribution (QKD) at the core of trustednode quantum networks. Two main schemes are proposed and analyzed in detail, considering system imperfections, specifically, time misalignment issues. It turns out that while multiple service providers can share the network infrastructure using the proposed multiplexing techniques, no gain in the total secret key generation rate is obtained if one uses conventional all-optical passive OFDM decoders. To achieve a linear increase in the key rate with the number of channels, an alternative active setup for OFDM decoding is proposed, which employs an optical switch in addition to conventional passive circuits. We show that by using our proposed decoder the bandwidth utilization is considerably improved as compared to conventional wavelength division multiplexing techniques.
description: Equation (23) is fixed
The Role of Acculturation and Collectivism in Cancer Screening for Vietnamese American Women
Creators: name: Nguyen, Anh B.
name: Clark, Trenette T.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014

description: The aim of this study was to examine the influence of demographic variables and the interplay between collectivism and acculturation on breast and cervical cancer screening outcomes among Vietnamese American women. Convenience sampling was used to recruit 111 Vietnamese women from the Richmond, VA, metropolitan area, who participated in a larger cancer screening intervention. All participants completed measures on demographic variables, collectivism, acculturation, and cancer-screening-related variables (i.e., attitudes, self-efficacy, and screening behavior). Findings indicated that collectivism predicted both positive attitudes and higher levels of self-efficacy with regard to breast and cervical cancer screening. Collectivism also moderated the relationship between acculturation and attitudes toward breast cancer screening such that for women with low levels of collectivistic orientation, increasing acculturation predicted less positive attitudes towards breast cancer screening. This relationship was not found for women with high levels of collectivistic orientation. The current findings highlight the important roles that sociodemographic and cultural variables play in affecting health attitudes, self-efficacy, and behavior among Vietnamese women. The findings potentially inform screening programs that rely on culturally relevant values in helping increase Vietnamese women’s motivation to screen.
Gender Equality as a Means to Improve Maternal and Child Health in Africa
Creators: name: Singh, Kavita
name: Bloom, Shelah
name: Brodish, Paul
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2015

description: In this paper we examine whether measures of gender equality, household decision-making and attitudes toward gender-based violence are associated with maternal and child health outcomes in Africa. We pooled Demographic and Health Surveys (DHS) data from eight African countries and used multilevel logistic regression on two maternal health outcomes (low body mass index and facility delivery) and two child health outcomes (immunization status and treatment for an acute respiratory infection). We found protective associations between the gender equality measures and the outcomes studied, indicating that gender equality is a potential strategy to improve maternal and child health in Africa.
title: Winter - Spring cereal grains
title: Cereal grains
titleType: AlternativeTitle
title: Χειμερινά - Εαρινά Σιτηρά
title: Σιτηρά
titleType: AlternativeTitle
Creators: name: Papastylianou, Panayiota Thiresia
name: Bilalis, Dimitrios
name: Travlos, Ilias
Publisher: name: Kallipos, Open Academic Editions
Year: 2022
Subjects: Φυτά Μεγάλης Καλλιέργειας
Σιτηρά
Μορφολογία
Field Crops
Cereals
Morphology

description: This laboratory guide is intended for undergraduate and postgraduate students who are studying subjects related to field crops as well for anyone interested in gaining relevant experience in the study of cereal plant and grain morphology. The analysis of the growth stages of each plant aids in identifying critical stages of the plant's biological cycle and is directly related to the ecological requirements of each species and good agricultural practice. The guide is divided into twelve chapters. Winter cereals include wheat, barley, oats, rye and triticale. Of the spring grains, maze, rice, sorghum and millet are considered. For each plant species, its taxonomy, importance and uses are listed. Its morphological characteristics are described and the growth and development stages of the plants are mentioned in relation with the main factors affecting them. Finally, there is a series of questions at the end of each chapter intended to help the reader acquire a better understanding and consolidation of this guide’s contents
description: Ο εργαστηριακός οδηγός απευθύνεται σε προπτυχιακούς και μεταπτυχιακούς φοιτητές που διδάσκονται θέματα φυτών μεγάλης καλλιέργειας καθώς και σε κάθε ενδιαφερόμενο που επιθυμεί να αποκτήσει σχετική εμπειρία στην αναγνώριση με τη βοήθεια των βοτανικών χαρακτηριστικών κάθε φυτού που αναφέρεται στον οδηγό. Η ανάλυση των σταδίων ανάπτυξης κάθε φυτού συμβάλλει στην αναγνώριση κρίσιμων σταδίων του βιολογικού κύκλου του φυτού και σχετίζεται άμεσα με τις οικολογικές απαιτήσεις κάθε είδους και την ορθή καλλιεργητική πρακτική. Ο εργαστηριακός οδηγός περιέχει δώδεκα κεφάλαια. Στα χειμερινά σιτηρά εξετάζονται το σιτάρι, το κριθάρι, η βρώμη, η σίκαλη και η σιταρόβριζα. Στα εαρινά σιτηρά εξετάζονται ο αραβόσιτος, το ρύζι, το σόργο και το κεχρί. Για κάθε φυτό παρατίθεται η ταξινόμηση, η σημασία και οι χρήσεις του. Περιγράφονται τα μορφολογικά χαρακτηριστικά του και αναφέρονται τα στάδια αύξησης και ανάπτυξης των φυτών σε συνδυασμό με τους κυριότερους παράγοντες που τα επηρεάζουν.
The business case for provider participation in clinical trials research: An application to the National Cancer Institute’s community clinical oncology program
Creators: name: Minasian, Lori
name: Weiner, Bryan J.
name: McAlearney, Ann Scheck
name: Reiter, Kristin L.
name: Song, Paula H.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2013

description: Provider-based research networks (PBRNs) make clinical trials available in community-based practice settings, where most people receive their care, but provider participation requires both financial and in-kind contributions.
Baire measurable paradoxical decompositions via matchings
Creators: name: Marks, Andrew
name: Unger, Spencer
Publisher: name: arXiv
Year: 2015
Subjects: subject: Logic (math.LO)
subject: Group Theory (math.GR)
subject: FOS: Mathematics

description: We show that every locally finite bipartite Borel graph satisfying a strengthening of Hall's condition has a Borel perfect matching on some comeager invariant Borel set. We apply this to show that if a group acting by Borel automorphisms on a Polish space has a paradoxical decomposition, then it admits a paradoxical decomposition using pieces having the Baire property. This strengthens a theorem of Dougherty and Foreman who showed that there is a paradoxical decomposition of the unit ball in $\mathbb{R}^3$ using Baire measurable pieces. We also obtain a Baire category solution to the dynamical von Neumann-Day problem: if $a$ is a nonamenable action of a group on a Polish space $X$ by Borel automorphisms, then there is a free Baire measurable action of $\mathbb{F}_2$ on $X$ which is Lipschitz with respect to $a$.
description: Minor revisions
PhotoRedshift-MML: a multimodal machine learning method for estimating photometric redshifts of quasars
Creators: name: Hong, Shuxin
name: Zou, Zhiqiang
name: Luo, A-Li
name: Kong, Xiao
name: Yang, Wenyu
name: Chen, Yanli
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: We propose a Multimodal Machine Learning method for estimating the Photometric Redshifts of quasars (PhotoRedshift-MML for short), which has long been the subject of many investigations. Our method includes two main models, i.e. the feature transformation model by multimodal representation learning, and the photometric redshift estimation model by multimodal transfer learning. The prediction accuracy of the photometric redshift was significantly improved owing to the large amount of information offered by the generated spectral features learned from photometric data via the MML. A total of 415,930 quasars from Sloan Digital Sky Survey (SDSS) Data Release 17, with redshifts between 1 and 5, were screened for our experiments. We used |Δz| = |(z_phot-z_spec)/(1+z_spec)| to evaluate the redshift prediction and demonstrated a 4.04% increase in accuracy. With the help of the generated spectral features, the proportion of data with |Δz| < 0.1 can reach 84.45% of the total test samples, whereas it reaches 80.41% for single-modal photometric data. Moreover, the Root Mean Square (RMS) of |Δz| is shown to decreases from 0.1332 to 0.1235. Our method has the potential to be generalized to other astronomical data analyses such as galaxy classification and redshift prediction. The algorithm code can be found at https://github.com/HongShuxin/PhotoRedshift-MML .
description: 10 pages, 8 figures, accepted for publication in MNRAS
Marine Technology Workshop - "Vessels and Supply Chain Optimisation for Sustainable Short Sea Shipping"
Creators: name: Prof. Nikolaos Ventikos
Publisher: name: Zenodo
Year: 2022

description: The University of the Aegean (Smart MOVE Research Lab) hosted a workshop on Marine Technology, which was focus on the impact of recent developments (such as Artificial Intelligence, Robotics, Big Data and Augmented Reality) on the maritime domain. The workshop provided the space for the wider research and end-user community to interact and discuss future opportunities and it was organised in two sessions: Session 1: Augmented Reality for Maritime Training
 Session 2: Artificial Intelligence & Big Data in the Maritime Domain The workshop on Marine Technology took place on 12th September 2022, at the Conference Room Chamber of Cyclades in Syros, Greece, between 10:00-17:00. The workshop was organised as part of the RELAR (Remote Learning & examination based on AR) project. MOSES was presented by its coordinator Prof. Nikolaos Ventikos, from NTUA, who delivered a presentation entitled: “AutoMated Vessels and Supply Chain Optimisation for Sustainable Short Sea Shipping“.
Assessing organizational capacity for achieving meaningful use of electronic health records
Creators: name: Reiter, Kristin L.
name: Thornhill, Jonathan
name: Nguyen, Nicholas G.
name: Weiner, Bryan J.
name: Weinberger, Morris
name: Lord, Jennifer
name: Shea, Christopher M.
name: Malone, Robb
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014

description: Health care institutions are scrambling to manage the complex organizational change required for achieving meaningful use (MU) of electronic health records (EHR). Assessing baseline organizational capacity for the change can be a useful step toward effective planning and resource allocation.
Radiation Tolerance of 65nm CMOS Transistors
Creators: name: Krohn, M.
name: Bentele, B.
name: Cumalat, J. P.
name: Wagner, S. R.
name: Christian, D. C.
name: Deptuch, G.
name: Fahim, F.
name: Hoff, J.
name: Shenai, A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We report on the effects of ionizing radiation on 65nm CMOS transistors held at approximately -20C during irradiation. The pattern of damage observed after a total dose of 1 Grad is similar to damage reported in room temperature exposures, but we observe less damage than was observed at room temperature.
From strategy to action: How top managers’ support increases middle managers’ commitment to innovation implementation in health care organizations
Creators: name: Weiner, Bryan J.
name: Chiu, Michael
name: Lee, Shoou-Yih Daniel
name: Schaefer, Cynthia T.
name: Chin, Marshall H.
name: Birken, Sarah A.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2015

description: Evidence suggests that top managers’ support influences middle managers’ commitment to innovation implementation. What remains unclear is how top managers’ support influences middle managers’ commitment. Results may be used to improve dismal rates of innovation implementation.
Influence of the magnetic filter field topology on the beam divergence at the ELISE test facility
Creators: name: Barbisan, M.
name: Fantz, U.
name: Wünderlich, D.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: The ELISE test facility hosts a RF negative ion source, equipped with an extraction system which should deliver half the current foreseen for the ITER Neutral Beam Injector, keeping the ratio of co-extracted electrons to ions below 1. An important tool for the suppression of the co-extracted electrons is the magnetic filter field, produced by a current flowing in the plasma grid, the first grid of the 3 stage extraction system. To boost the source performances new concepts for the production of the magnetic filter field have been tested, combining the existing system with permanent magnets attached on the source walls. The topologies of these new magnetic configurations influence the beam particles trajectories in the extraction region, with consequences for the overall beam optics. These effects will be characterized in this article by studying the angular distribution of the beam particles, as measured by the Beam Emission Spectroscopy (BES) diagnostic. The behavior of the beam will be studied also through the measurements of the currents flowing on the grounded grid (the third grid) and on the grid holder box surrounding its exit. The main finding is that the broader component of the beam increases when the magnetic field is strengthened by permanent magnets, i.e. in the cases in which most of the co-extracted electrons are suppressed.
description: 7 pages, 4 figures. Contributed paper for the NIBS 2016 conference. Accepted manuscript
Economies of scale in federally-funded state-organized public health programs: results from the National Breast and Cervical Cancer Early Detection Programs
Creators: name: Trogdon, Justin G.
name: Crouse, Wesley
name: Ekwueme, Donatus U.
name: Subramanian, Sujha
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014

description: This study investigates the existence of economies of scale in the provision of breast and cervical cancer screening and diagnostic services by state National Breast and Cervical Cancer Early Detection Program (NBCCEDP) grantees. A translog cost function is estimated as a system with input factor share equations. The estimated cost function is then used to determine output levels for which average costs are decreasing (i.e., economies of scale exist). Data were collected from all state NBCCEDP programs and District of Columbia for program years 2006–2007, 2008–2009 and 2009–2010 (N =147). Costs included all programmatic and in-kind contributions from federal and non-federal sources, allocated to breast and cervical cancer screening activities. Output was measured by women served, women screened and cancers detected, separately by breast and cervical services for each measure. Inputs included labor, rent and utilities, clinical services, and quasi-fixed factors (e.g., percent of women eligible for screening by the NBCCEDP). 144 out of 147 program-years demonstrated significant economies of scale for women served and women screened; 136 out of 145 program-years displayed significant economies of scale for cancers detected. The cost data were self-reported by the NBCCEDP State programs. Quasi-fixed inputs were allowed to affect costs but not economies of scale or the share equations. The main analysis accounted for clustering of observations within State programs, but it did not make full use of the panel data. The average cost of providing breast and cervical cancer screening services decreases as the number of women screened and served increases.
MPEC 2024-R297 : 2024 RO14
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2024
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2024 RO14

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Rank two affine submanifolds in $\mathcal{H}(2,2)$ and $\mathcal{H}(3,1)$
Creators: name: Aulicino, David
name: Nguyen, Duc-Manh
Publisher: name: arXiv
Year: 2015
Subjects: subject: Geometric Topology (math.GT)
subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 51H25 (Primary), 37B05 (Secondary)

description: We classify all rank two affine manifolds in strata in genus three with two zeros. This confirms a conjecture of Maryam Mirzakhani in these cases. Several technical results are proven for all strata in genus three, with the hope that they may shed light on a complete classification of rank two manifolds in genus three.
description: 63 pages, 28 figures
DETERMINANT OF THE SPEED OF ADJUSTMENT OF THE CAPITAL STRUCTURE OF ISSUERS IN THE BANKING SECTOR
Creators: name: ADE LUTFIYAH NUR FAWWAZ
name: PALTI MT. SITORUS
Publisher: name: Zenodo
Year: 2023
Subjects: Adjustment Speed, Capital Structure, Distance.

description: Abstract
This paper intends to analyze and test the Speed of Adjustment (SoA) of the actual towards optimal capital structure in banks in Indonesia over the year 2013-2022 which are listed on the Indonesia Stock Exchange, focused on how distance affected Speed of Adjustment (SoA).  In order to assess the impacts of distance on Speed of Adjustment (SoA) and used panel data estimators as our approach for this study. Data for the years 2013 through 2022 were gathered from 5 companies using their annual financial reports. The result in this research show that profitability, liquidity, and tangibility have significant implications on capital structure of banking sub-sector companies. Meanwhile, firm size, growth, and risk do not have a significant effect on the capital structure of banking sub-sector companies. For the period of 2013 to 2022, the speed of adjustment value for companies in the banking sector listed on the IDX is 76.2%, meaning that it will take 1.3 years for banking sector companies in Indonesia to change their capital structure to optimal. The analysis's findings indicate that distance significantly affects the speed of adjustment, with a higher distance indicating a quicker rate of capital structure adjustment by the company.
Characterizing Drug Non-Users as Distinctive in Prevention Messages: Implications of Optimal Distinctiveness Theory
Creators: name: Comello, Maria Leonora G.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2011

description: Optimal Distinctiveness Theory posits that highly valued groups are those that can simultaneously satisfy needs to belong and to be different. The success of drug-prevention messages with a social-identity theme should therefore depend on the extent to which the group is portrayed as capable of meeting these needs. Specifically, messages that portray non-users as a large and undifferentiated majority may not be as successful as messages that emphasize uniqueness of non-users. This prediction was examined using marijuana prevention messages that depicted non-users as a distinctive or a majority group. Distinctiveness characterization lowered behavioral willingness to use marijuana among non-users (Experiment 1) and served as a source of identity threat (contingent on gender) among users (Experiment 2).
Local starburst galaxies and their descendants
Creators: name: Bergvall, Nils
name: Marquart, Thomas
name: Way, Michael J.
name: Blomqvist, Anna
name: Holst, Emma
name: Östlin, Göran
name: Zackrisson, Erik
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Despite strong interest in the starburst (hereafter SB) phenomenon, the concept remains ill-defined. We use a strict definition of SB to examine the statistical properties of local SB and post-starburst (hereafter PB) galaxies. We also seek relationships to active galaxies. Potential SB galaxies are selected from the SDSS DR7 and their stellar content is analysed. We apply an age dependent dust attenuation correction and derive star formation rates (SFR), ages and masses of the young and old populations. The photometric masses nicely agree with dynamical masses derived from the H-alpha emission line width. To select SB galaxies, we use the birthrate parameter b=SFR/, requiring b>=3. The PB sample is selected from the citerion EW(Hdelta_abs)>=6 A. Only 1% of star-forming galaxies are found to be SB galaxies. They contribute 3-6% to the stellar production and are therefore unimportant for the local star formation activity. The median SB age is 70 Myr, roughly independent of mass. The b-parameter strongly depends on burst age. Values close to b=60 are found at ages ~10 Myr, while almost no SBs are found at ages >1 Gyr. The median baryonic burst mass fraction of sub-L* galaxies is 5%, decreasing slowly with mass. The median mass fraction of the recent burst in the PB sample is 5-10%. The age-mass distribution of the progenitors of the PBs is bimodal with a break at log(M)~10.6 above which the ages are doubled. The SB and PB luminosity functions (hereafter LFs) follow each other closely until M_r~-21, when AGNs begin to dominate. The PB LF continues to follow the AGN LF while SB loose significance. This suggests that the number of luminous SBs is underestimated by about one dex at high luminosities, due to large amounts of dust and/or AGN blending. It also indicates that the SB phase preceded the AGN phase. We also discuss the conditions for global gas outflow caused by stellar feedback.
description: Accepted for publication in Astronomy and Astrophysics. This is an extended, substantially revised and corrected version with partly modified conclusions
Delivering Health Information via Podcast or Web: Media Effects on Psychosocial and Physiological Responses
Creators: name: Kalyanaraman, Sri
name: Turner-McGrievy, Gabrielle
name: Campbell, Marci K.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2013

description: This study explored differences in psychosocial and physiological variables in response to being presented with information on weight loss through either reading text on a website or listening to the same information via podcast. Participants were randomized to receive a weight loss website (n = 20) or podcast (n = 20). Participants had skin conductance levels measured and completed questionnaire items assessing demographic characteristics, user control, novelty, and knowledge. Participants in the podcast group exhibited greater levels of physiological arousal and reported the intervention to be more novel than those in the Web group; however, the Web group reported greater user control. There was no difference in knowledge between the groups. This study presents the first step in examining the role that novelty and user control may play in two different weight-loss electronic media, as well as differences in knowledge acquisition. Future research should explore adding additional media features, such as video content, to the podcasts and websites in order to optimize fully the different mediums and to examine whether user control and novelty are potential mediators of weight loss outcomes.
title: Humans of AI3SD: Zoheir Sabeur
Creators: name: Pauli, Michelle
name: Sabeur, Zoheir
Publisher: name: University of Southampton
Year: 2022
Subjects: AI3SD, Interview

description: This interview forms part of our Humans of AI3SD Series.

In this Humans of AI4SD interview he discusses the early days of data science and its importance to this century, how to understand, detect and track human behaviour to make urban spaces safer, the fascination of mathematical theories, and how data science came into its own during the pandemic.
Solar cell as self-oscillating heat engine
Creators: name: Alicki, Robert
name: Gelbwaser-Klimovsky, David
name: Szczygielski, Krzysztof
Publisher: name: arXiv
Year: 2015
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Solar cells are engines converting energy supplied by the photon flux into work. All known types of macroscopic engines and turbines are also self-oscillating systems which yield a periodic motion at the expense of a usually non-periodic source of energy. The very definition of work in the formalism of quantum open systems suggests the hypothesis that the oscillating "piston" is a necessary ingredient of the work extraction process. This aspect of solar cell operation is absent in the existing descriptions and the main goal of this paper is to show that plasma oscillations provide the physical implementation of a piston.
description: corrected published version,5 pages, 2 figures
THE IMPORTANCE OF TEACHING WRITING SKILLS OF SCHOOL STUDENTS (9TH FORM)
Creators: name: Koshayova, Sansabila
Publisher: name: Zenodo
Year: 2023

description: This article describes the concept of disciplinary literacy and emphasizes its relevance to teaching writing in specific subject areas. This article analyzes the significance of teaching writing skills to ninth-grade students. The paper deals with the statement that effective writing is a critical skill that not only contributes to academic success but also plays a pivotal role in personal and professional development. This analysis highlights the benefits of a comprehensive writing curriculum, its impact on cognitive development, and its role in fostering critical thinking and communication abilities.