cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
ASC-dependent RIP2 Kinase Regulates Reduced PGE 2 Production in Chronic Periodontitis
Creators: name: Zhang, S.
name: Lei, Y.
name: Offenbacher, S.
name: Holley-Guthrie, E.
name: Ting, J.P.-Y.
name: Taxman, D.J.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2012

description: Levels of prostaglandin E2 (PGE2) and its processing enzyme, prostaglandin-endoperoxide-synthase-2/ cyclooxygenase-2 (PTGS2/COX-2), are elevated in actively progressing periodontal lesions, but suppressed in chronic disease. COX-2 expression is regulated through inflammatory signaling that converges on the mitogen-activated protein kinase (MAPK) pathway. Emerging evidence suggests a role for the inflammatory adaptor protein, ASC/Pycard, in MAPK activation. We postulated that ASC may represent a mediator of the MAPK-mediated regulatory network of PGE2 production. Using RNAi-mediated gene slicing, we demonstrated that ASC regulates COX-2 expression and PGE2 production in THP1 monocytic cells following infection with Porphyromonas gingivalis (Pg). Production of PGE2 did not require the inflammasome adaptor function of ASC, but was dependent on MAPK activation. Furthermore, the MAP kinase kinase kinase CARD domain-containing protein RIPK2 was induced by Pg in an ASC-dependent manner. Reduced ASC and RIPK2 levels were revealed by orthogonal comparison of the expression of the RIPK family in ASC-deficient THP1 cells with that in chronic periodontitis patients. We show that pharmacological inhibition of RIPK2 represses PGE2 secretion, and RNAi-mediated silencing of RIPK2 leads to diminished MAPK activation and PGE2 secretion. These findings identify a novel ASC-RIPK2 axis in the generation of PGE2 that is repressed in patients diagnosed with chronic adult periodontitis.
Aircraft navigation based on differentiation-integration observer
Creators: name: Wang, Xinhua
name: Cai, Lilong
Publisher: name: arXiv
Year: 2015
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: In this paper, a generalized differentiation-integration observer is presented based on sensors selection. The proposed differentiation-integration observer can estimate the multiple integrals and high-order derivatives of a signal, synchronously. The parameters selection rules are presented for the differentiation-integration observer. The theoretical results are confirmed by the frequency-domain analysis. The effectiveness of the proposed observer are verified through the numerical simulations on a quadrotor aircraft: i) through the differentiation-integration observer, the attitude angle and the uncertainties in attitude dynamics are estimated synchronously from the measurements of angular velocity; ii) a control law is designed based on the observers to drive the aircraft to track a reference trajectory.
(400528) John High
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Efficacy of Chlorhexidine Varnish for the Prevention of Adult Caries: A Randomized Trial
Creators: name: Laws, R.
name: Papas, A.S.
name: O’Connor, Kimberly
name: Peaches, Rantreva
name: Deane, Joy-Ann
name: Oh, Junhie
name: Johnson, Joanne
name: Molina, Nydia
name: Haskie, Jacqueline
name: Blanchard, Peter
name: Begay, Marilyn
name: Singh, M.L.
name: Tavano, Joanne
name: Maupome, Gerardo
name: Hollis, J.F.
name: White, Alex
name: Masaquaptewa, Adrinne
name: Bader, J.
name: Phipps, Kathy
name: Marangi-Marsden, Rosemary
name: Blanchard, P.
name: Robertson, L.D.
name: Snyder, J.
name: Gullion, C.M.
name: Vollmer, W.M.
name: Honanie, Eric
name: Torresyap, Gay
name: Hamburger, Keith
name: Goldtooth, Tracy
name: Maupomé, G.
name: Fellows, J.
name: Johnson, Kristen
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2012

description: The Prevention of Adult Caries Study, an NIDCR-funded multicenter, double-blind, randomized clinical trial, enrolled 983 adults (aged 18-80 yrs) at high risk for developing caries (20 or more intact teeth and 2 or more lesions at screening) to test the efficacy of a chlorhexidine diacetate 10% weight per volume (w/v) dental coating (CHX). We excluded participants for whom the study treatment was contraindicated or whose health might affect outcomes or ability to complete the study. Participants were randomly assigned to receive either the CHX coating (n = 490) or a placebo control (n = 493). Coatings were applied weekly for 4 weeks and a fifth time 6 months later. The primary outcome (total net D1-2FS increment) was the sum of weighted counts of changes in tooth surface status over 13 months. We observed no significant difference between the two treatment arms in either the intention-to-treat or per-protocol analyses. Analysis of 3 protocol-specified secondary outcomes produced similar findings. This trial failed to find that 10% (w/v) chlorhexidine diacetate coating was superior to placebo coating for the prevention of new caries (Clinicaltrials.gov registration number NCT00357877).
Overlap and activity glass transitions in plaquette spin models with hierarchical dynamics
Creators: name: Turner, Robert M.
name: Jack, Robert L.
name: Garrahan, Juan P.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We consider thermodynamic and dynamic phase transitions in plaquette spin models of glasses. The thermodynamic transitions involve coupled (annealed) replicas of the model. We map these coupled-replica systems to a single replica in a magnetic field, which allows us to analyse the resulting phase transitions in detail. For the triangular plaquette model (TPM), we find for the coupled-replica system a phase transition between high- and low-overlap phases, occuring at a coupling eps*(T), which vanishes in the low-temperature limit. Using computational path sampling techniques, we show that a single TPM also displays space-time transitions between active and inactive dynamical phases. These first-order dynamical transitions occur at a critical counting field s_c(T)>=0 that appears to vanish at zero temperature, in a manner reminiscent of the thermodynamic overlap transition. In order to extend the ideas to three dimensions we introduce the square pyramid model which also displays both overlap and activity transitions. We discuss a possible common origin of these various phase transitions, based on long-lived (metastable) glassy states.
description: 12 pages, 9 figs
Multi-Center Federated Learning: Clients Clustering for Better Personalization
Creators: name: Long, Guodong
name: Xie, Ming
name: Shen, Tao
name: Zhou, Tianyi
name: Wang, Xianzhi
name: Jiang, Jing
name: Zhang, Chengqi
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Federated learning has received great attention for its capability to train a large-scale model in a decentralized manner without needing to access user data directly. It helps protect the users' private data from centralized collecting. Unlike distributed machine learning, federated learning aims to tackle non-IID data from heterogeneous sources in various real-world applications, such as those on smartphones. Existing federated learning approaches usually adopt a single global model to capture the shared knowledge of all users by aggregating their gradients, regardless of the discrepancy between their data distributions. However, due to the diverse nature of user behaviors, assigning users' gradients to different global models (i.e., centers) can better capture the heterogeneity of data distributions across users. Our paper proposes a novel multi-center aggregation mechanism for federated learning, which learns multiple global models from the non-IID user data and simultaneously derives the optimal matching between users and centers. We formulate the problem as a joint optimization that can be efficiently solved by a stochastic expectation maximization (EM) algorithm. Our experimental results on benchmark datasets show that our method outperforms several popular federated learning methods.
description: This paper has two duplicated versions: 2005.01026 and 2108.08647. The first one 2005.01026 is the right one, and the second one 2108.08647 should be deleted because it always causes misoperating
Functional Properties of Tooth Pulp Neurons Responding to Thermal Stimulation
Creators: name: Närhi, M.
name: Light, A.R.
name: McNaughton, K.
name: Maixner, W.
name: Ahn, D.K.
name: Doutova, E.A.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2012

description: The response properties of tooth pulp neurons that respond to noxious thermal stimulation of the dental pulp have been not well-studied. The present study was designed to characterize the response properties of tooth pulp neurons to noxious thermal stimulation of the dental pulp. Experiments were conducted on 25 male ferrets, and heat stimulation was applied by a computer-controlled thermode. Only 15% of tooth pulp neurons (n = 39) responded to noxious thermal stimulation of the teeth. Tooth pulp neurons were found in both the superficial and deep nuclear regions of the subnucleus caudalis (Vc) and in the interface between the nucleus caudalis and interpolaris (Vc/Vi). Thirty-seven neurons had cutaneous receptive fields and were classified as either NS (16) or WDR (21) neurons. Repeated heat stimulation of the dental pulp sensitized and increased the number of electrically evoked potentials of tooth pulp neurons. These results provide evidence that both the Vc and Vc/Vi regions contain neurons that respond to noxious thermal stimulation of the dental pulp, and that these cells may contribute to the sensitization process associated with symptomatic pulpitis.
Quantum key distribution with any two independent and identically distributed states
Creators: name: Mizutani, Akihiro
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: To prove the security of quantum key distribution (QKD) protocols, several assumptions have to be imposed on users' devices. From an experimental point of view, it is preferable that such theoretical requirements are feasible and the number of them is small. In this paper, we provide a security proof of a QKD protocol where the usage of any light source is allowed as long as it emits two independent and identically distributed (i.i.d.) states. Our QKD protocol is composed of two parts: the first part is characterization of the photon-number statistics of the emitted signals up to three-photons based on the method [Opt. Exp. 27, 5297 (2019)], followed by running our differential-phase-shift (DPS) protocol [npj Quantum Inf. 5, 87 (2019)]. It is remarkable that as long as the light source emits two i.i.d. states, even if we have no prior knowledge of the light source, we can securely employ it in the QKD protocol. As this result substantially simplifies the requirements on light sources, it constitutes a significant contribution on realizing truly secure quantum communication.
description: 10 pages, 4 figures
Genome-wide Association Study of Periodontal Pathogen Colonization
Creators: name: Divaris, K.
name: Olshan, A.F.
name: North, K.E.
name: Offenbacher, S.
name: Moss, K.
name: Lange, E.M.
name: Monda, K.L.
name: Beck, J.D.
name: Barros, S.P.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2012

description: Pathological shifts of the human microbiome are characteristic of many diseases, including chronic periodontitis. To date, there is limited evidence on host genetic risk loci associated with periodontal pathogen colonization. We conducted a genome-wide association (GWA) study among 1,020 white participants of the Atherosclerosis Risk in Communities Study, whose periodontal diagnosis ranged from healthy to severe chronic periodontitis, and for whom “checkerboard” DNA-DNA hybridization quantification of 8 periodontal pathogens was performed. We examined 3 traits: “high red” and “high orange” bacterial complexes, and “high” Aggregatibacter actinomycetemcomitans (Aa) colonization. Genotyping was performed on the Affymetrix 6.0 platform. Imputation to 2.5 million markers was based on HapMap II-CEU, and a multiple-test correction was applied (genome-wide threshold of p < 5 × 10−8). We detected no genome-wide significant signals. However, 13 loci, including KCNK1, FBXO38, UHRF2, IL33, RUNX2, TRPS1, CAMTA1, and VAMP3, provided suggestive evidence (p < 5 × 10−6) of association. All associations reported for “red” and “orange” complex microbiota, but not for Aa, had the same effect direction in a second sample of 123 African-American participants. None of these polymorphisms was associated with periodontitis diagnosis. Investigations replicating these findings may lead to an improved understanding of the complex nature of host-microbiome interactions that characterizes states of health and disease.
(400530) Cecelia [High]
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Small quantum absorption refrigerator in the transient regime: time scales, enhanced cooling and entanglement
Creators: name: Brask, Jonatan Bohr
name: Brunner, Nicolas
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A small quantum absorption refrigerator, consisting of three qubits, is discussed in the transient regime. We discuss time scales for coherent dynamics, damping, and approach to the steady state, and we study cooling and entanglement. We observe that cooling can be enhanced in the transient regime, in the sense that lower temperatures can be achieved compared to the steady-state regime. This is a consequence of coherent dynamics, but can occur even when this dynamics is strongly damped by the dissipative thermal environment, and we note that precise control over couplings or timing is not needed to achieve enhanced cooling. We also show that the amount of entanglement present in the refrigerator can be much larger in the transient regime compared to the steady-state. These results are of relevance to future implementations of quantum thermal machines.
description: 8 pages, 5 figures
International students' loneliness, depression and stress levels in COVID-19 crisis. The role of social media and the host university
Creators: name: Misirlis, Nikolaos
name: Zwaan, Miriam H.
name: Weber, David
Publisher: name: arXiv
Year: 2020
Subjects: subject: Social and Information Networks (cs.SI)
subject: Computers and Society (cs.CY)
subject: FOS: Computer and information sciences

description: The move to university life is characterized by strong emotions, some of them negative, such as loneliness, anxiety, and depression. These negative emotions are strengthened due to the obligatory lockdown due to the COVID-19 pandemic. Previous research indicates association among the use of social media, university satisfaction, and the aforementioned emotions. We report findings from 248 international undergraduates in The Netherlands, all students at the International School of Business. Our results indicate strong correlations between anxiety, loneliness, and COVID-19-related stress with university satisfaction together with social capital. Keywords: COVID-19; Pandemic; lockdown; loneliness; depression; anxiety; international students
description: 14 pages
(400532) George Hill
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Ergodicity breaking of an inorganic glass in aging near ${T_g}$ probed by elasticity relaxation
Creators: name: Wang, Jianbiao
name: Wang, Xu
name: Ruan, Haihui
Publisher: name: arXiv
Year: 2020
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We performed a series of aging experiments of an inorganic glass (As${_2}$Se${_3}$) at a temperature ${T_2}$ near the glass transition point ${T_g}$ by first relaxing it at ${T_1}$. The relaxation of Young's modulus was monitored, which was(almost if not ideally) exponential with a ${T_1}$-dependent relaxation time ${τ(T_1)}$. We demostrate the Kovacs' paradox for the first time in an inorganic glasses. Associated with the divergence of $τ$, the quasi-equilibrated Young's modulus ${E_\infty}$ does not converge either. An elastic model of relaxation time and a Mori-Tanaka analysis of ${E_\infty}$ lead to a similar estimate of the persistent memory of the history, ergodicity breaking within the accessible experimental time. Experiments with different ${T_2}$ exhibits a critical temperature ${T_p \sim T_g}$, i.e., when ${T_2 > T_p}$, both $τ$ and ${E_\infty}$ converge.
description: 7 pages, 5 figures
Twisted compactification of N=2 5D SCFTs to three and two dimensions from F(4) gauged supergravity
Creators: name: Karndumri, Parinya
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study supersymmetric $AdS_4\times Σ_2$ and $AdS_3\times Σ_3$ solutions in half-maximal gauged supergravity in six dimensions with $SU(2)_R\times SU(2)$ gauge group. The gauged supergravity is obtained by coupling three vector multiplets to the pure $F(4)$ gauged supergravity. The $SU(2)_R$ R-symmetry together with the $SO(3)\sim SU(2)$ symmetry of the vector multiplets are gauged. The resulting gauged supergravity admits supersymmetric $AdS_6$ critical points with $SO(4)\sim SU(2)\times SU(2)$ and $SO(3)\sim SU(2)_{\textrm{diag}}$ symmetries. The former corresponds to five-dimensional $N=2$ superconformal field theories (SCFTs) with $E_1\sim SU(2)$ symmetry. We find new classes of supersymmetric $AdS_4\times Σ_2$ and $AdS_3\times Σ_3$ solutions with $Σ_{2,3}$ being $S^{2,3}$ and $H^{2,3}$. These solutions describe SCFTs in three and two dimensions obtained from twisted compactifications of the aforementioned five-dimensional SCFTs with different numbers of unbroken supersymmetry and various types of global symmetries.
description: 22 pages, no figures, typos and errors in the BPS equations in section 3.1 corrected and references added
Stability of standing waves for NLS-log equation with $δ$-interaction
Creators: name: Pava, Jaime Angulo
name: Goloshchapova, Nataliia
Publisher: name: arXiv
Year: 2015
Subjects: subject: Spectral Theory (math.SP)
subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35Q51, 35J61, 47E05

description: We study analytically the orbital stability of the standing waves with a peak-Gausson profile for a nonlinear logarithmic Schrödinger equation with $δ$-interaction (attractive and repulsive). A major difficulty is to compute the number of negative eigenvalues of the linearized operator around the standing wave. This is overcome by the perturbation method, the continuation arguments, and the theory of extensions of symmetric operators.
description: accepted in NoDEA
MicroRNA Modulation in Obesity and Periodontitis
Creators: name: Perri, R.
name: Barros, S.P.
name: Offenbacher, S.
name: Nares, S.
name: Zhang, S.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2012

description: The aim of this pilot investigation was to determine if microRNA expression differed in the presence or absence of obesity, comparing gingival biopsies obtained from patients with or without periodontal disease. Total RNA was extracted from gingival biopsy samples collected from 20 patients: 10 non-obese patients (BMI < 30 kg/m2) and 10 obese patients (BMI > 30 kg/m2), each group with 5 periodontally healthy sites and 5 chronic periodontitis sites. MicroRNA expression patterns were assessed with a quantitative microRNA PCR array to survey 88 candidate microRNA species. Four microRNA databases were used to identify potential relevant mRNA target genes of differentially expressed microRNAs. Two microRNA species (miR-18a, miR-30e) were up-regulated among obese individuals with a healthy periodontium. Two microRNA species (miR-30e, miR-106b) were up-regulated in non-obese individuals with periodontal disease. In the presence of periodontal disease and obesity, 9 of 11 listed microRNAs were significantly up-regulated (miR-15a, miR-18a, miR-22, miR-30d, miR-30e, miR-103, miR-106b, miR-130a, miR-142-3p, miR-185, and miR-210). Predicted targets include 69 different mRNAs from genes that comprise cytokines, chemokines, specific collagens, and regulators of glucose and lipid metabolism. The expression of specific microRNA species in obesity, which could also target and post-transcriptionally modulate cytokine mRNA, provides new insight into possible mechanisms of how risk factors might modify periodontal inflammation and may represent novel therapeutic targets.
Extension of torsors and prime to $p$ fundamental group scheme
Creators: name: Antei, Marco
name: Calvo-Monge, Jimmy
Publisher: name: arXiv
Year: 2020
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14L30, 14L15 (Primary). 11G99 (Secondary)

description: Let $R$ be a discrete valuation ring with fraction field $K$. Let $X$ be a proper and faithfully flat $R$-scheme, endowed with a section $x \in X(R)$, with connected and reduced generic fibre $X_η$. Let $f: Y \rightarrow X_η$ be a finite Nori-reduced $G$-torsor. In this paper we provide a useful criterion to extend $f: Y \rightarrow X_η$ to a torsor over $X$. Furthermore in the particular situation where $R$ is a complete discrete valuation ring of residue characteristic $p>0$ and $X\to \text{Spec}(R)$ is smooth we apply our criterion to prove that the natural morphism $ψ^{(p')}: π(X_η,x_η)^{(p')}\to π(X,x)_η^{(p')}$ between the prime-to-$p$ fundamental group scheme of $X_η$ and the generic fibre of the prime-to-$p$ fundamental group scheme of $X$ is an isomorphism. This generalizes a well known result for the étale fundamental group. The methods used are purely tannakian.
description: To appear in Annals de l'Institut Fourier
(400527) [?] [Harwood]
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Maximum entropy principle for stationary states underpinned by stochastic thermodynamics
Creators: name: Ford, Ian J.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The selection of an equilibrium state by maximising the entropy of a system, subject to certain constraints, is often powerfully motivated as an exercise in logical inference, a procedure where conclusions are reached on the basis of incomplete information. But such a framework can be more compelling if it is underpinned by dynamical arguments, and we show how this can be provided by stochastic thermodynamics, where an explicit link is made between the production of entropy and the stochastic dynamics of a system coupled to an environment. The separation of entropy production into three components allows us to select a stationary state by maximising the change, averaged over all realisations of the motion, in the principal relaxational or nonadiabatic component, equivalent to requiring that this contribution to the entropy production should become time independent for all realisations. We show that this recovers the usual equilibrium probability density function (pdf) for a conservative system in an isothermal environment, as well as the stationary nonequilibrium pdf for a particle confined to a potential under nonisothermal conditions, and a particle subject to a constant nonconservative force under isothermal conditions. The two remaining components of entropy production account for a recently discussed thermodynamic anomaly between over- and underdamped treatments of the dynamics in the nonisothermal stationary state.
Posterior Insular Molecular Changes in Myofascial Pain
Creators: name: Deebajah, A.
name: Ichesco, E.
name: Sundgren, P.C.
name: Gracely, R.H.
name: Gerstner, G.E.
name: Quintero, A.
name: Clauw, D.J.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2012

description: Temporomandibular disorders (TMD) include craniocervical pain conditions with unclear etiologies. Central changes are suspected; however, few neuroimaging studies of TMD exist. Single-voxel proton magnetic resonance spectroscopy (1H-MRS) was used before and after pressure-pain testing to assess glutamate (Glu), glutamine (Gln), N-acetylaspartate (NAA), and choline (Cho) levels in the right and left posterior insulae of 11 individuals with myofascial TMD and 11 matched control individuals. Glu levels were significantly lower in all individuals after pain testing. Among those with TMD, left-insular Gln levels were related to reported pain, left posterior insular NAA and Cho levels were significantly higher at baseline than in control individuals, and NAA levels were significantly correlated with pain-symptom duration, suggesting adaptive changes. The results suggest that significant central cellular and molecular changes can occur in individuals with TMD.
Il labirinto del mondo delle cose. Invito alla lettura di Metamorfosi. Immagini del pensiero.
Creators: name: Zanon, Giulia
Publisher: name: La Rivista di Engramma
Year: 2024
Subjects: Franco Rella
Walter Benjamin
Remo Bodei
Descartes
Shakespeare
Immagini del pensiero

description: The present contribution explores the multi-layered significances that Franco Rella’s reflections on the visible, as often connected to the category of ‘metamorphoses’, assume with specific reference to his volume Immagini del pensiero (1984).
(400529) Charles Brumby
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Caregivers’ Health Literacy and Their Young Children’s Oral-health–related Expenditures
Creators: name: Gizlice, Z.
name: Baker, A.D.
name: Divaris, K.
name: Vann, W.F.
name: Lee, J.Y.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2013

description: Caregivers’ health literacy has emerged as an important determinant of young children’s health care and outcomes. We examined the hypothesis that caregivers’ health literacy influences children’s oral-health-care–related expenditures. This was a prospective cohort study of 1,132 child/caregiver dyads (children’s mean age = 19 months), participating in the Carolina Oral Health Literacy Project. Health literacy was measured by the REALD-30 (word recognition based) and NVS (comprehension based) instruments. Follow-up data included child Medicaid claims for CY2008-10. We quantified expenditures using annualized 2010 fee-adjusted Medicaid-paid dollars for oral-health–related visits involving preventive, restorative, and emergency care. We used descriptive, bivariate, and multivariate statistical methods based on generalized gamma models. Mean oral-health–related annual expenditures totaled $203: preventive—$81, restorative—$99, and emergency care—$22. Among children who received services, mean expenditures were: emergency hospital-based—$1282, preventive—$106, and restorative care—$343. Caregivers’ low literacy in the oral health context was associated with a statistically non-significant increase in total expenditures (average annual difference = $40; 95% confidence interval, -32, 111). Nevertheless, with both instruments, emergency dental care expenditures were consistently elevated among children of low-literacy caregivers. These findings provide initial support for health literacy as an important determinant of the meaningful use and cost of oral health care.
Constraints on the temperature inhomogeneity in quasar accretion discs from the ultraviolet-optical spectral variability
Creators: name: Kokubo, Mitsuru
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The physical mechanisms of the quasar ultraviolet (UV)-optical variability are not well understood despite the long history of observations. Recently, Dexter & Agol presented a model of quasar UV-optical variability, which assumes large local temperature fluctuations in the quasar accretion discs. This inhomogeneous accretion disc model is claimed to describe not only the single-band variability amplitude, but also microlensing size constraints and the quasar composite spectral shape. In this work, we examine the validity of the inhomogeneous accretion disc model in the light of quasar UV-optical spectral variability by using five-band multi-epoch light curves for nearly 9 000 quasars in the Sloan Digital Sky Survey (SDSS) Stripe 82 region. By comparing the values of the intrinsic scatter $σ_{\text{int}}$ of the two-band magnitude-magnitude plots for the SDSS quasar light curves and for the simulated light curves, we show that Dexter & Agol's inhomogeneous accretion disc model cannot explain the tight inter-band correlation often observed in the SDSS quasar light curves. This result leads us to conclude that the local temperature fluctuations in the accretion discs are not the main driver of the several years' UV-optical variability of quasars, and consequently, that the assumption that the quasar accretion discs have large localized temperature fluctuations is not preferred from the viewpoint of the UV-optical spectral variability.
description: 14 pages, 7 figures and 2 tables, accepted for publication in MNRAS 2015 February 4
Support $τ_n$-tilting pairs
Creators: name: Zhou, Panyue
name: Zhu, Bin
Publisher: name: arXiv
Year: 2020
Subjects: subject: Representation Theory (math.RT)
subject: Category Theory (math.CT)
subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 18E30, 16G10

description: We introduce the higher version of the notion of Adachi-Iyama-Reiten's support $τ$-tilting pairs, which is a generalization of maximal $τ_n$-rigid pairs in the sense of Jacobsen-Jørgensen. Let $\mathcal C$ be an $(n+2)$-angulated category with an $n$-suspension functor $Σ^n$ and an Opperman-Thomas cluster tilting object. We show that relative $n$-rigid objects in $\mathcal C$ are in bijection with $τ_n$-rigid pairs in the $n$-abelian category $\mathcal C/{\rm add}Σ^n T$, and relative maximal $n$-rigid objects in $\mathcal C$ are in bijection with support $τ_n$-tilting pairs. We also show that relative $n$-self-perpendicular objects are in bijection with maximal $τ_n$-rigid pairs. These results generalise the work for $\mathcal C$ being $2n$-Calabi-Yau by Jacobsen-Jørgensen and the work for $n=1$ by Yang-Zhu.
description: 17 pages, comments are welcome
Cognitive Decline and Oral Health in Middle-aged Adults in the ARIC Study
Creators: name: Slade, G.D.
name: Naorungroj, S.
name: Heiss, G.
name: Mosley, T.H.
name: Gottesman, R.F.
name: Alonso, A.
name: Beck, J.D.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2013

description: Even before dementia becomes apparent, cognitive decline may contribute to deterioration in oral health. This cohort study of middle-aged adults evaluated associations of six-year change in cognitive function with oral health behaviors and conditions in the Atherosclerosis Risk in Communities (ARIC) study. Cognitive function was measured at study visits in 1990-1992 and 1996-1998 with three tests: (a) Delayed Word Recall (DWR), (b) Digit Symbol Substitution (DSS), and (c) Word Fluency (WF). Cognitive decline scores were computed as ‘studentized’ residuals of 1996-1998 scores regressed against 1990-1992 scores. In 1996-1998, 10,050 participants answered dental screening questions, and 5,878 of 8,782 dentate participants received a comprehensive oral examination. Multiple regression models used cognitive change to predict oral health behaviors and conditions with adjustment for covariates. In the fully adjusted models, greater decline in all three measures of cognitive function was associated with increased odds of complete tooth loss. Greater decline in DSS and WF scores was associated with infrequent toothbrushing. Decline in WF scores was also associated with higher plaque levels. In these middle-aged adults, six-year cognitive decline was modestly associated with less frequent toothbrushing, plaque deposit, and greater odds of edentulism, but not with other oral behaviors or diseases.
(400526) [Lieutenant] Colehurst [aka Harwood]
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
A dusty, normal galaxy in the epoch of reionization
Creators: name: Watson, Darach
name: Christensen, Lise
name: Knudsen, Kirsten Kraiberg
name: Richard, Johan
name: Gallazzi, Anna
name: Michałowski, Michał Jerzy
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Candidates for the modest galaxies that formed most of the stars in the early universe, at redshifts $z > 7$, have been found in large numbers with extremely deep restframe-UV imaging. But it has proved difficult for existing spectrographs to characterise them in the UV. The detailed properties of these galaxies could be measured from dust and cool gas emission at far-infrared wavelengths if the galaxies have become sufficiently enriched in dust and metals. So far, however, the most distant UV-selected galaxy detected in dust emission is only at $z = 3.25$, and recent results have cast doubt on whether dust and molecules can be found in typical galaxies at this early epoch. Here we report thermal dust emission from an archetypal early universe star-forming galaxy, A1689-zD1. We detect its stellar continuum in spectroscopy and determine its redshift to be $z = 7.5\pm0.2$ from a spectroscopic detection of the Lyα break. A1689-zD1 is representative of the star-forming population during reionisation, with a total star-formation rate of about 12M$_\odot$ yr$^{-1}$. The galaxy is highly evolved: it has a large stellar mass, and is heavily enriched in dust, with a dust-to-gas ratio close to that of the Milky Way. Dusty, evolved galaxies are thus present among the fainter star-forming population at $z > 7$, in spite of the very short time since they first appeared.
description: Nature in press. 14 pages, 10 figures, including methods section
A Thesis Submitted to the Graduate Studies of Addis Ababa University School of Commerce in Partial Fulfillment of the Requirements For the Degree of Masters of Human Resource Management
Creators: name: Melkamu Wogari
Publisher: name: Zenodo
Year: 2016

description: The general objective of the study was to investigate and assess the relationship between employee’s perception of performance based bonus and merit pay incentive scheme practices of Africa Village Financial Services and its influence on employee productivity. To undertake this general objective, four specific objectives with their underling hypothesis were designed and assessed by quantitative & qualitative research design. To set background information on the proposed hypothesis the theoretical, conceptual and other related literatures were reviewed and most of the literature finding implies that perception of employees of performance based bonus and merit pay incentive system has a significant and positive influence on employee productivity. The required data for conducting the research was obtained through structured and unstructured questionnaires. The structured questionnaire was adopted from two prior related studies.
R-mode constraints from neutron star equation of state
Creators: name: Papazoglou, M. C.
name: Moustakidis, C. C.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The gravitational radiation has been proposed a long time before, as an explanation for the observed relatively low spin frequencies of young neutron stars and of accreting neutron stars in low-mass X-ray binaries as well. In the present work we studied the effects of the neutron star equation of state on the r-mode instability window of rotating neutron stars. Firstly, we employed a set of analytical solution of the Tolman-Oppemheimer-Volkoff equations with special emphasis on the Tolman VII solution. In particular, we tried to clarify the effects of the bulk neutron star properties (mass, radius, density distribution, crust size and elasticity) on the r-mode instability window. We found that the critical angular velocity $Ω_c$ depends mainly on the neutron star radius. The effects of the gravitational mass and the mass distribution are almost negligible. Secondly, we studied the effect of the elasticity of the crust, via to the slippage factor $S$ and also the effect of the nuclear equation of state, via the slope parameter $L$, on the instability window. We found that the crust effects are more pronounced, compared to those originated from the equation of state. Moreover, we proposed simple analytical expressions which relate the macroscopic quantity $Ω_c$ to the radius, the parameter $L$ and the factor ${\cal S}$. We also investigated the possibility to measure the radius of a neutron star and the factor ${\cal S}$ with the help of accurate measures of $Ω_c$ and the neutron star temperature. Finally, we studied the effects of the mutual friction on the instability window and discussed the results in comparison with previous similar studies.
description: 29 pages, 10 figures, 2 tables
Non-parametric mean curvature flow with prescribed contact angle in Riemannian products
Creators: name: Casteras, Jean-Baptiste
name: Heinonen, Esko
name: Holopainen, Ilkka
name: de Lira, Jorge H.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53C21, 53E10

description: Assuming that there exists a translating soliton $u_\infty$ with speed $C$ in a domain $Ω$ and with prescribed contact angle on $\partialΩ$, we prove that a graphical solution to the mean curvature flow with the same prescribed contact angle converges to $u_\infty +Ct$ as $t\to\infty$. We also generalize the recent existence result of Gao, Ma, Wang and Weng to non-Euclidean settings under suitable bounds on convexity of $Ω$ and Ricci curvature in $Ω$.
description: This replaces the previous versions. We have added Remark 1.2, Theorem 1.3 and its proof in Section 3
Price of Fairness for Allocating a Bounded Resource
Creators: name: Nicosia, Gaia
name: Pacifici, Andrea
name: Pferschy, Ulrich
Publisher: name: arXiv
Year: 2015
Subjects: subject: Computer Science and Game Theory (cs.GT)
subject: FOS: Computer and information sciences

description: In this paper we study the problem of allocating a scarce resource among several players (or agents). A central decision maker wants to maximize the total utility of all agents. However, such a solution may be unfair for one or more agents in the sense that it can be achieved through a very unbalanced allocation of the resource. On the other hand fair/balanced allocations may be far from being optimal from a central point of view. So, in this paper we are interested in assessing the quality of fair solutions, i.e. in measuring the system efficiency loss under a fair allocation compared to the one that maximizes the sum of agents utilities. This indicator is usually called the Price of Fairness and we study it under three different definitions of fairness, namely maximin, Kalai-Smorodinski and proportional fairness. Our results are of two different types. We first formalize a number of properties holding for any general multi-agent problem without any special assumption on the agents utility sets. Then we introduce an allocation problem, where each agent can consume the resource in given discrete quantities (items), such that the maximization of the total utility is given by a Subset Sum Problem. For the resulting Fair Subset Sum Problem, in the case of two agents, we provide upper and lower bounds on the Price of Fairness as functions of an upper bound on the items size.
M180 Amelogenin Processed by MMP20 is Sufficient for Decussating Murine Enamel
Creators: name: Gibson, C.W.
name: Pugach, M.K.
name: Wright, J.T.
name: Li, Y.
name: Kulkarni, A.B.
name: Suggs, C.
name: Bartlett, J.D.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2013

description: Amelogenin (AMELX) and matrix metalloproteinase-20 (MMP20) are essential for proper enamel development. Amelx and Mmp20 mutations cause amelogenesis imperfecta. MMP20, a protease secreted by ameloblasts, is responsible for processing enamel proteins, including AMELX, during the secretory stage of enamel formation. Of at least 16 different amelogenin splice products, the most abundant isoform found in murine ameloblasts and developing enamel is the M180 protein. To understand the role of MMP20 processing of M180 AMELX, we generated AmelxKO/Mmp20KO (DKO) mice with an amelogenin (M180Tg) transgene. We analyzed the enamel phenotype by SEM to determine enamel structure and thickness, µCT, and by nanoindentation to quantify enamel mechanical properties. M180Tg/DKO mouse enamel had 37% of the hardness of M180Tg/AmelxKO teeth and demonstrated a complete lack of normal prismatic architecture. Although molar enamel of M180Tg/AmelxKO mice was thinner than WT, it had similar mechanical properties and decussating enamel prisms, which were abolished by the loss of MMP20 in the M180Tg/DKO mice. Retention of the C-terminus or complete lack of this domain is unable to rescue amelogenin null enamel. We conclude that among amelogenins, M180 alone is sufficient for normal enamel mechanical properties and prism patterns, but that additional amelogenin splice products are required to restore enamel thickness.
Scattering below the ground state for the intercritical non-radial inhomogeneous NLS
Creators: name: Cardoso, Mykael
name: Farah, Luiz Gustavo
name: Guzmán, Carlos M.
name: Murphy, Jason
Publisher: name: arXiv
Year: 2020
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: We consider the focusing inhomogeneous nonlinear Schrödinger equation \[ i\partial_t u + Δu + |x|^{-b}|u|^αu = 0\quad\text{on}\quad\mathbb{R}\times\mathbb{R}^N, \] with $N\geq 2$, $0
description: 20 pages
“Quasi fudesse ecce homo de paese” Sulla vicenda compositiva dell’Ambleto di Testori
Creators: name: Pianca, Chiara
Publisher: name: La Rivista di Engramma
Year: 2024
Subjects: Testori
Ambleto
plurilingualism
parody
Scarozzanti

description: In this contribution, the author makes an in-depth analysis of the preparatory drafts of Giovanni Testori's Ambleto. The study of the preparatory materials for Ambleto, in addition to shedding light on the refinement of a linguistic device with “neo-Barbaric” outcomes, also bringing new insights into the influences of Ruzante's language mediated by the actor Franco Parenti, brings to light the founding feature of the scarozzante voice. Such a voice not only runs through all the characters and can also ekphrastically create the scene, but thanks to its parodic quality still makes the re-proposition of tragedy possible in the second half of the 20th century. The emergence of a redaction containing the extension of the pastiche to the captions, and thus to the author's word, confirms the even self-parodic feature of the operation