cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Target ion and neutral spread in high power impulse magnetron sputtering
Creators: name: Hajihoseini, H.
name: Brenning, N.
name: Rudolph, M.
name: Raadu, M.A.
name: Lundin, D.
name: Fischer, J.
name: Minea, T. M.
name: Gudmundsson, J.T.
Publisher: name: New York, NY : Inst.
Year: 2022
Subjects: subject: Geometrical factors
subject: High power
subject: Magnet configurations
subject: Magnetron-sputtering
subject: Neutral atoms
subject: Sputtered materials
subject: Target ions
subject: Target materials
subject: Target surface
subject: Transport parameters
subject: 530

description: In magnetron sputtering, only a fraction of the sputtered target material leaving the ionization region is directed toward the substrate. This fraction may be different for ions and neutrals of the target material as the neutrals and ions can exhibit a different spread as they travel from the target surface toward the substrate. This difference can be significant in high power impulse magnetron sputtering (HiPIMS) where a substantial fraction of the sputtered material is known to be ionized. Geometrical factors or transport parameters that account for the loss of produced film-forming species to the chamber walls are needed for experimental characterization and modeling of the magnetron sputtering discharge. Here, we experimentally determine transport parameters for ions and neutral atoms in a HiPIMS discharge with a titanium target for various magnet configurations. Transport parameters are determined to a typical substrate, with the same diameter (100 mm) as the cathode target, and located at a distance 70 mm from the target surface. As the magnet configuration and/or the discharge current are changed, the transport parameter for neutral atoms ζ tn remains roughly the same, while transport parameters for ions ζ ti vary greatly. Furthermore, the relative ion-to-neutral transport factors, ζ ti / ζ tn, that describe the relative deposited fractions of target material ions and neutrals onto the substrate, are determined to be in the range from 0.4 to 1.1.
Energy-dependent dielectric tensor axes in monoclinic α-3,4,9,10-perylene tetracarboxylic dianhydride
Creators: name: Alonso, M.I.
name: Garriga, M.
name: Ossó, J.O.
name: Schreiber, F.
name: Scholz, R.
Publisher: name: Amsterdam [u.a.] : Elsevier
Year: 2023
Subjects: subject: Chromatic dispersion of tensor axes
subject: Electronic structure of organic semiconductor
subject: Generalized ellipsometry
subject: Monoclinic dielectric tensor
subject: Perylene tetracarboxylic dianhydride
subject: 070
subject: 660

description: We have determined the complex dielectric tensor of single crystalline 3,4,9,10-perylene tetracarboxylic dianhydride (α-PTCDA) as a function of energy in the range between 1.4 and 5.0 eV. The results obtained reflect the monoclinic symmetry of the crystal: The principal axes of the real and the imaginary part of the tensor in general do not coincide and show chromatic dispersion. Monoclinic behavior allows rotation of the components ɛX and ɛZ in the plane perpendicular to the unique symmetry axis Y. The experimental results indicate that the energies of the optical transitions observed in the weak ɛX component coincide with energies in which a resonance effect due to coupling with the stronger ɛZ component occurs. These resonances appear at energies close to electronic excitations such as the optical gap, the transport gap and the highest occupied molecular orbital–lowest unoccupied molecular orbital (HOMO–LUMO) peak-to-peak gap and their assignments are discussed based on theoretical calculations.
Strange nonchaotic stars
Creators: name: Lindner, John F.
name: Kohar, Vivek
name: Kia, Behnam
name: Hippke, Michael
name: Learned, John G.
name: Ditto, William L.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The unprecedented light curves of the Kepler space telescope document how the brightness of some stars pulsates at primary and secondary frequencies whose ratios are near the golden mean, the most irrational number. A nonlinear dynamical system driven by an irrational ratio of frequencies generically exhibits a strange but nonchaotic attractor. For Kepler's "golden" stars, we present evidence of the first observation of strange nonchaotic dynamics in nature outside the laboratory. This discovery could aid the classification and detailed modeling of variable stars.
description: 5 pages, 4 figures, published in Physical Review Letters
Le città italiane e il PNRR
Creators: name: Viesti, Gianfranco
name: Chiapperini, Carmela
name: Montenegro, Emanuela
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2022
Subjects: ICAR/20 Tecnica e pianificazione urbanistica
ICAR/21 Urbanistica
IUS/08 Diritto costituzionale
IUS/09 Istituzioni di diritto pubblico
IUS/10 Diritto amministrativo
SH3 - Environment, Space and Population: Environmental studies, geography, demography, migration, regional and urban studies
SPS/03 Storia delle istituzioni politiche
SPS/08 Sociologia dei processi culturali e comunicativi
SPS/09 Sociologia dei processi economici e del lavoro

description: This study aims at analysing and evaluating 11 NRRP measures of significant interest for Italian cities. These measures, for which 20.5 billion were allocated in 2021-22, concern interventions of urban regeneration, on public transport networks and vehicles, on ports, judicial buildings and public residential buildings. Their characteristics, possible beneficiaries and the criteria for the allocation of resources are presented. As the allocation was based on different criteria for individual measures and it did not give any attention whatsoever to their overall impact, significant disparities emerge. As far as metropolitan cities are concerned, investments are way larger in the capitals than in the other municipalities; Rome, Naples, Turin and Milan receive lower investments, measured per capita, compared to the others. Looking at the capital cities, the disparities that emerge are even more significant. Some cities have received a considerable amount of resources; but the variance in the distribution is high: in as many as 40 capitals the amount of investment received is less than half the average – among the latter, important realities of the weakest regions, namely Calabria, Sicily and Sardinia. 38% of the total investments allocated to cities are directed to the cities of the South, with great differences between one measure and the other one according to the criteria used: but they tend to be concentrated in some of them only.
Effect of different oxide and hybrid precursors on MOF-CVD of ZIF-8 films
Creators: name: Cruz, Alexander John
name: Arnauts, Giel
name: Obst, Martin
name: Kravchenko, Dmitry E.
name: Vereecken, Philippe M.
name: Feyter, Steven De
name: Stassen, Ivo
name: Hauffman, Tom
name: Ameloot, Rob
Publisher: name: figshare
Year: 2023
Subjects: Other chemical sciences not elsewhere classified

description: Chemical vapor deposition of metal–organic frameworks (MOF-CVD) will facilitate the integration of porous and crystalline coatings in electronic devices. In the two-step MOF-CVD process, a precursor layer is first deposited and subsequently converted to a MOF through exposure to linker vapor. We herein report the impact of different metal oxide and metalcone layers as precursors for zeolitic imidazolate framework ZIF-8 films.
Identification of eQTLs for Hepatic Xbp1s and Socs3 Gene Expression in Mice Fed a High-Fat, High-Caloric Diet
Creators: name: Lammert, Frank
name: Cheverud, James
name: Pasricha, Sarina
name: Anderson, Kristy
name: Hall, Rabea A.
name: Jafari, Nadereh
name: Green, Richard M.
name: Kenney-Hunt, Jane
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2015

description: Nonalcoholic fatty liver disease (NAFLD) is a highly prevalent form of human hepatic disease and feeding mice a high-fat, high-caloric (HFHC) diet is a standard model of NAFLD. To better understand the genetic basis of NAFLD, we conducted an expression quantitative trait locus (eQTL) analysis of mice fed a HFHC diet. Two-hundred sixty-five (A/J × C57BL/6J) F2 male mice were fed a HFHC diet for 8 wk. eQTL analysis was utilized to identify genomic regions that regulate hepatic gene expression of Xbp1s and Socs3. We identified two overlapping loci for Xbp1s and Socs3 on Chr 1 (164.0–185.4 Mb and 174.4–190.5 Mb, respectively) and Chr 11 (41.1–73.1 Mb and 44.0–68.6 Mb, respectively), and an additional locus for Socs3 on Chr 12 (109.9–117.4 Mb). C57BL/6J-Chr 11A/J/ NaJ mice fed a HFHC diet manifested the A/J phenotype of increased Xbp1s and Socs3 gene expression (P < 0.05), whereas C57BL/6J-Chr 1A/J/ NaJ mice retained the C57BL/6J phenotype. In addition, we replicated the eQTLs on Chr 1 and Chr 12 (LOD scores ≥3.5) using mice from the BXD murine reference panel challenged with CCl4 to induce chronic liver injury and fibrosis. We have identified overlapping eQTLs for Xbp1 and Socs3 on Chr 1 and Chr 11, and consomic mice confirmed that replacing the C57BL/6J Chr 11 with the A/J Chr 11 resulted in an A/J phenotype for Xbp1 and Socs3 gene expression. Identification of the genes for these eQTLs will lead to a better understanding of the genetic factors responsible for NAFLD and potentially other hepatic diseases.
The Founder Strains of the Collaborative Cross Express a Complex Combination of Advantageous and Deleterious Traits for Male Reproduction
Creators: name: Stevans, Alicia M.
name: Goodson, Summer G.
name: Aylor, David L.
name: O’Brien, Deborah A.
name: Kao, Chia-Yu
name: de Villena, Fernando Pardo-Manuel
name: Bell, Timothy A.
name: McMillan, Leonard
name: Yun, Zianing
name: Pan, Wenqi
name: Odet, Fanny
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2015

description: Surveys of inbred strains of mice are standard approaches to determine the heritability and range of phenotypic variation for biomedical traits. In addition, they may lead to the identification of novel phenotypes and models of human disease. Surprisingly, male reproductive phenotypes are among the least-represented traits in the Mouse Phenome Database. Here we report the results of a broad survey of the eight founder inbred strains of both the Collaborative Cross (CC) and the Diversity Outbred populations, two new mouse resources that are being used as platforms for systems genetics and sources of mouse models of human diseases. Our survey includes representatives of the three main subspecies of the house mice and a mix of classical and wild-derived inbred strains. In addition to standard staples of male reproductive phenotyping such as reproductive organ weights, sperm counts, and sperm morphology, our survey includes sperm motility and the first detailed survey of testis histology. As expected for such a broad survey, heritability varies widely among traits. We conclude that although all eight inbred strains are fertile, most display a mix of advantageous and deleterious male reproductive traits. The CAST/EiJ strain is an outlier, with an unusual combination of deleterious male reproductive traits including low sperm counts, high levels of morphologically abnormal sperm, and poor motility. In contrast, sperm from the PWK/PhJ and WSB/EiJ strains had the greatest percentages of normal morphology and vigorous motility. Finally, we report an abnormal testis phenotype that is highly heritable and restricted to the WSB/EiJ strain. This phenotype is characterized by the presence of a large, but variable, number of vacuoles in at least 10% of the seminiferous tubules. The onset of the phenotype between 2 and 3 wk of age is temporally correlated with the formation of the blood-testis barrier. We speculate that this phenotype may play a role in high rates of extinction in the CC project and in the phenotypes associated with speciation in genetic crosses that use the WSB/EiJ strain as representative of the Mus muculus domesticus subspecies.
Innovazione, internazionalizzazione e capitale umano nelle imprese della provincia di Rimini
Creators: name: Giuri, Paola
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2022
Subjects: SECS-P/08 Economia e gestione delle imprese
SECS-P/10 Organizzazione aziendale

description: Questo volume raccoglie i risultati di studi condotti a partire dal 2014 su imprese della provincia di Rimini nell’ambito di progetti di ricerca e terza missione sviluppati in collaborazione tra Confindustria Romagna e il Dipartimento di Scienze Aziendali dell’Università di Bologna nella sede di Rimini. Le prime due ricerche, svolte nel 2014 e nel 2015 sono state concentrate su due temi tradizionali nell’ambito delle strategie di impresa, in particolare l’innovazione e l’internazionalizzazione, con un focus sulle differenze nelle imprese grandi, medie, piccole e micro. Le due ricerche successive, realizzate nel 2017 e 2019 hanno messo al centro le risorse umane e hanno esaminato contesti di innovazione sociale nell’ambito delle politiche di welfare aziendale, ed i cambiamenti nei nuovi profili di capitale umano richiesti per rispondere alle sfide della trasformazione digitale. Le analisi empiriche di tutti gli studi sono state realizzate attraverso somministrazione di indagini alle imprese associate a Confindustria Romagna basate su questionari di volta in volta predisposti a partire dalla letteratura scientifica di riferimento sia teorica che empirica. I tassi di risposta sono stati significativi ed hanno consentito di ottenere campioni rappresentativi delle popolazioni di riferimento.
Wool & Ull, how the history of British and Icelandic knitting traditions and industry have influenced my practice and teaching
Creators: name: Alexander, Christie
Publisher: name: FUTURESCAN
Year: 2019
Subjects: subject: 120306 Textile and Fashion Design
subject: FOS: Arts (arts, history of arts, performing arts, music)

description: Short paper presented at the Association of Fashion & Textile Courses (FTC) conference Futurescan 4: Valuing Practice, University of Bolton, UK, 23rd-24th January 2019.
Futurescan 4: Valuing PracticeEdited by: Helena Britt, Kevin Almond, Laura MorganISBN: 978-1-5272-4969-1
Suzaku X-ray Observations of the Fermi Bubbles: Northernmost Cap and Southeast Claw Discovered with MAXI-SSC
Creators: name: Tahara, M.
name: Kataoka, J.
name: Takeuchi, Y.
name: Totani, T.
name: Sofue, Y.
name: Hiraga, J. S.
name: Tsunemi, H.
name: Inoue, Y.
name: Kimura, M.
name: Cheung, C. C.
name: Nakashima, S.
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We report on Suzaku observations of large-scale X-ray structures possibly related with the Fermi Bubbles obtained in 2013 with a total duration of ~ 80 ks. The observed regions were the: (i) northern cap (N-cap; l ~ 0 deg, 45 deg < b < 55 deg) seen in the Mid-band (1.7-4.0 keV) map recently provided by MAXI-SSC and (ii) southeast claw (SE-claw; l ~ 10 deg, -20 deg < b < -10 deg) seen in the ROSAT all-sky map and MAXI-SSC Low-band (0.7-1.7 keV) map. In each region, we detected diffuse X-ray emissions which are represented by a three component plasma model consisting of an unabsorbed thermal component (kT ~ 0.1 keV) from the Local Bubble, absorbed kT = 0.30+/-0.05 keV emission representing the Galactic Halo, and a power-law component due to the isotropic cosmic X-ray background radiation. The emission measure of the GH component in the SE-claw shows an excess by a factor of ~ 2.5 over the surrounding emission at 2 deg away. We also found a broad excess in the 1.7-4.0 keV count rates across the N-cap after compiling other archival data from Suzaku and Swift. The spectral stacking analysis of the N-cap data indicates the presence of another thermal component with kT = 0.70 (+0.22,-0.11) keV. The temperature of kT ~ 0.3 keV of the Galactic Halo is higher than the ubiquitous value of kT ~ 0.2 keV near the Fermi Bubbles, and can be even higher (~ 0.7 keV). We discuss our findings in the context of bubble-halo interaction.
description: 37 pages, 9 figures, accepted for publication in ApJ. arXiv admin note: text overlap with arXiv:1310.3553
Renormalization of an Abelian Tensor Group Field Theory: Solution at Leading Order
Creators: name: Lahoche, Vincent
name: Oriti, Daniele
name: Rivasseau, Vincent
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study a just renormalizable tensorial group field theory of rank six with quartic melonic interactions and Abelian group U(1). We introduce the formalism of the intermediate field, which allows a precise characterization of the leading order Feynman graphs. We define the renormalization of the model, compute its (perturbative) renormalization group flow and write its expansion in terms of effective couplings. We then establish closed equations for the two point and four point functions at leading (melonic) order. Using the effective expansion and its uniform exponential bounds we prove that these equations admit a unique solution at small renormalized coupling.
description: 37 pages, 14 figures
title: RARÎ² genetic and epigenetic alterations in aero-respiratory tract cancers
Creators: name: Warrak, Suemyya.
Publisher: name: University of Liverpool Repository
Year: 2023

description: Early detection of lung and head and neck cancer would potentially improve diagnosis and prognosis. For such an approach to be successful, specific and novel markers at a pre-clinical stage of the disease must be identified. There is growing evidence that hypermethylation of CpG-rich sequences in the promoter regions of tumour suppressor genes such as RARJ3, may lead to long-term transcriptional silencing of such genes and thus contribute to tumour development. Many previous studies have implicated RARJ3 promoter methylation in the transcriptional silencing of the RARJ3 gene in a variety of cancers. Since carcinogenesis is a multi-step process that arises as a result of combinations of genetic and epigenetic events, it was the purpose of this study to investigate both genetic changes such as mutations and allelic imbalance, as well as epigenetic changes such as aberrant methylation and establish whether the presence of such changes was influencing transcription of isoforms one and two of the RARJ3 gene in non-small cell lung cancer and head and neck squamous cell carcinoma. Mutational analysis revealed a lack of mutations within all the coding exons of the RAR~ gene sequence, whilst allelic imbalance studies on five microsatellite markers within and surrounding the gene demonstrated relatively high levels of allelic imbalance. Methylation analysis of the RARJ3 promoter was carried out using the much utilized MSP method and the results obtained displayed a significant level of aberrant hypermethylation in non-small cell lung cancer and head and neck squamous cell carcinoma tumour samples compared to their corresponding normal samples. Sensitivity and specificity of the MSP method was also studied and results suggested that more stringent controls are needed as well as exceptionally specific conditions so as to achieve analysis-analysis reproducibility. Expression analysis of RARJ3 isoform one displayed significance levels of expression in a variety of normal tissues including lung and head and neck tissue, furthermore, analysis of both isoforms in non-small cell lung cancer and head and neck squamous cell carcinoma samples revealed no statistically significant differences in expression levels between normal and tumour paired samples, which implies that RARJ3 differential expression may not be as significant a marker of carcinogenesis as previously considered. The study demonstrated that whilst differential expression was not found as being a feature of non-small cell lung cancer or head and neck squamous cell carcinoma, allelic imbalance as well as aberrant promoter methylation of the RARJ3 gene were found to be frequent features of both these diseases, although the number of clinical samples investigated did not allow statistically significant correlations to be made.
Interference Calculation in Asynchronous Random Access Protocols using Diversity
Creators: name: Meloni, Alessio
name: Murroni, Maurizio
Publisher: name: arXiv
Year: 2015
Subjects: subject: Information Theory (cs.IT)
subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: The use of Aloha-based Random Access protocols is interesting when channel sensing is either not possible or not convenient and the traffic from terminals is unpredictable and sporadic. In this paper an analytic model for packet interference calculation in asynchronous Random Access protocols using diversity is presented. The aim is to provide a tool that avoids time-consuming simulations to evaluate packet loss and throughput in case decodability is still possible when a certain interference threshold is not exceeded. Moreover the same model represents the groundbase for further studies in which iterative Interference Cancellation is applied to received frames.
description: This paper has been accepted for publication in the Springer's Telecommunication Systems journal. The final publication will be made available at Springer. Please refer to that version when citing this paper; Springer Telecommunication Systems, 2015
Static and dynamic behavior of multiplex networks under interlink strength variation
Creators: name: Bastas, Nikolaos
name: Lazaridis, Filippos
name: Argyrakis, Panos
name: Maragakis, Michael
Publisher: name: arXiv
Year: 2015
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: It has recently been suggested \cite{Radicchi2013} that in a two-level multiplex network, a gradual change in the value of the "interlayer" strength $p$ can provoke an abrupt structural transition. The critical point $p^*$ at which this happens is system-dependent. In this article, we show in a similar way as in \cite{Garrahan2014} that this is a consequence of the graph Laplacian formalism used in \cite{Radicchi2013}. We calculate the evolution of $p^{*}$ as a function of system size for ER and RR networks. We investigate the behavior of structural measures and dynamical processes of a two-level system as a function of $p$, by Monte-Carlo simulations, for simple particle diffusion and for reaction-diffusion systems. We find that as $p$ increases there is a smooth transition from two separate networks to a single one. We cannot find any abrupt change in static or dynamic behavior of the underlying system.
description: 8 pages, 5 figures
Whole-Exome Sequencing and Targeted Copy Number Analysis in Primary Ciliary Dyskinesia
Creators: name: Ray, Peter N.
name: Stockley, Tracy
name: Paton, Tara A.
name: Scherer, Stephen W.
name: Dell, Sharon D.
name: Hall, David A.
name: Zariwala, Maimoona A.
name: Marshall, Christian R.
name: Lau, Lynette
name: Knowles, Michael R.
name: Jobling, Rebekah K.
name: Kim, Raymond H.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2015

description: Primary ciliary dyskinesia (PCD) is an autosomal-recessive disorder resulting from loss of normal ciliary function. Symptoms include neonatal respiratory distress, chronic sinusitis, bronchiectasis, situs inversus, and infertility. Clinical features may be subtle and highly variable, making the diagnosis of PCD challenging. The diagnosis can be confirmed with ciliary ultrastructure analysis and/or molecular genetic testing of 32 PCD-associated genes. However, because of this genetic heterogeneity, comprehensive molecular genetic testing is not considered the standard of care, and the most efficient molecular approach has yet to be elucidated. Here, we propose a cost-effective and time-efficient molecular genetic algorithm to solve cases of PCD. We conducted targeted copy number variation (CNV) analysis and/or whole-exome sequencing on 20 families (22 patients) from a subset of 45 families (52 patients) with a clinical diagnosis of PCD who did not have a molecular genetic diagnosis after Sanger sequencing of 12 PCD-associated genes. This combined molecular genetic approach led to the identification of 4 of 20 (20%) families with clinically significant CNVs and 7 of 20 (35%) families with biallelic pathogenic mutations in recently identified PCD genes, resulting in an increased molecular genetic diagnostic rate of 55% (11/20). In patients with a clinical diagnosis of PCD, whole-exome sequencing followed by targeted CNV analysis results in an overall molecular genetic yield of 76% (34/45).
Unruh effect without Rindler horizon
Creators: name: Nicolaevici, Nistor
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We investigate the Unruh effect for a massless scalar field in the two dimensional Minkowski space in the presence of a uniformly accelerated perfect mirror, with the trajectory of the mirror chosen in such a way that the mirror completely masks the Rindler horizon from the space-time region of interest. We find that the characteristic thermodynamical properties of the effect remain unchanged, i.e. the response of a uniformly co-accelerated Unruh detector and the distribution of the Rindler particles retain their thermal form. However, since in this setup there are no unobserved degrees of freedom of the field the thermal statistics of the Rindler particles is inconsistent with an initial pure vacuum, which leads us to reconsider the problem for the more physical case when the mirror is inertial in the past. In these conditions we find that the distribution of the Rindler particles is non-thermal even in the limit of infinite acceleration times, but an effective thermal statistics can be recovered provided that one restricts to the expectation values of smeared operators associated to finite norm Rindler states. We explain how the thermal statistics in our problem can be understood in analogy with that in the conventional version of the effect.
description: 49 pages, 12 figures
General method of the relativistic Foldy-Wouthuysen transformation and proof of validity of the Foldy-Wouthuysen Hamiltonian
Creators: name: Silenko, Alexander J.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences
subject: 81-XX

description: A general method of the Foldy-Wouthuysen transformation is developed. This method is applicable to relativistic particles with any spin in arbitrarily strong external fields. It can be used when the de Broglie wavelength is much smaller than the characteristic distance. Contrary to previously developed relativistic methods, the present method satisfies the condition of the exact Foldy-Wouthuysen transformation and is well substantiated. The derived relativistic Foldy-Wouthuysen Hamiltonian is expanded in powers of the Planck constant. In this expansion, terms proportional to the zero and first powers are determined exactly in accordance with the above condition and terms proportional to higher powers are not specified. The obtained result agrees with the corresponding formula for the Foldy-Wouthuysen Hamiltonian previously deduced by an iterative relativistic method and proves the validity of results obtained with this formula.
description: 19 pages, final version
State SNAP Policies Unlikely to Close Participation Gap Between Seniors and Non-Seniors, Study Shows
Creators: name: Jones, Jordon
name: Jones, Jordon
Publisher: name: Unknown
Year: 2022

description: USDA’s Supplemental Nutrition Assistance Program (SNAP) provides benefits for low-income households to buy groceries. Participation among eligible seniors (age 60 and above) historically has been much lower than participation among other groups. In fiscal year 2019, 48 percent of eligible seniors participated in SNAP, compared with 82 percent of eligible individuals of all ages, according to a recent report by USDA’s Food and Nutrition Service. To better understand the disparity in SNAP participation, researchers at USDA, Economic Research Service (ERS) and several academic institutions examined how differences in State administration of SNAP affect senior participation as compared to non-senior participation.
Arm swing magnitude and asymmetry during gait in the early stages of Parkinson's disease
Creators: name: Johnson, Julia
name: Huang, Xuemei
name: Halawa, Omar
name: Lewek, Michael D.
name: Poole, Roxanne
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2010

description: The later stages of Parkinson's disease (PD) are characterized by altered gait patterns. Although decreased arm swing during gait is the most frequently reported motor dysfunction in individuals with PD, quantitative descriptions of gait in early PD have largely ignored upper extremity movements. This study was designed to perform a quantitative analysis of arm swing magnitude and asymmetry that might be useful in the assessment of early PD. Twelve individuals with early PD (in “off” state) and eight controls underwent gait analysis using an optically-based motion capture system. Participants were instructed to walk at normal and fast velocities, and then on heels (to minimize push-off). Arm swing was measured as the excursion of the wrist with respect to the pelvis. Arm swing magnitude for each arm, and inter-arm asymmetry, were compared between groups. Both groups had comparable gait velocities (p=0.61), and there was no significant difference between the groups in the magnitude of arm swing in all walking conditions for the arm that swung more (p=0.907) or less (p=0.080). Strikingly, the PD group showed significantly greater arm swing asymmetry (asymmetry angle: 13.9±7.9%) compared to the control group (asymmetry angle: 5.1±4.0%; p=0.003). Unlike arm swing magnitude, arm swing asymmetry unequivocally differs between people with early PD and controls. Such quantitative evaluation of arm swing, especially its asymmetry, may have utility for early and differential diagnosis, and for tracking disease progression in patients with later PD.
Biomimicry using Embodied Materials in Paper Making Workshops
Creators: name: Findley, Jules
Publisher: name: FUTURESCAN
Year: 2019
Subjects: subject: 120306 Textile and Fashion Design
subject: FOS: Arts (arts, history of arts, performing arts, music)

description: Full paper presented at the Association of Fashion & Textile Courses (FTC) conference Futurescan 4: Valuing Practice, University of Bolton, UK, 23rd-24th January 2019.
Futurescan 4: Valuing PracticeEdited by: Helena Britt, Kevin Almond, Laura MorganISBN: 978-1-5272-4969-1
The NLO jet vertex in the small-cone approximation for kt and cone algorithms
Creators: name: Colferai, Dimitri
name: Niccoli, Alessandro
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We determine the jet vertex for Mueller-Navelet jets and forward jets in the small-cone approximation for two particular choices of jet algoritms: the kt algorithm and the cone algorithm. These choices are motivated by the extensive use of such algorithms in the phenomenology of jets. The differences with the original calculations of the small-cone jet vertex by Ivanov and Papa, which is found to be equivalent to a formerly algorithm proposed by Furman, are shown at both analytic and numerical level, and turn out to be sizeable. A detailed numerical study of the error introduced by the small-cone approximation is also presented, for various observables of phenomenological interest. For values of the jet "radius" R=0.5, the use of the small-cone approximation amounts to an error of about 5% at the level of cross section, while it reduces to less than 2% for ratios of distributions such as those involved in the measure of the azimuthal decorrelation of dijets.
description: 22 pages, 7 figures, 13 eps files
Decreased static and dynamic postural control in children with autism spectrum disorders
Creators: name: Bodfish, James W.
name: Tillman, Mark D.
name: Lewis, Mark H.
name: Radonovich, Krestin J.
name: Hass, Chris J.
name: Kimberg, Cara I.
name: Fournier, Kimberly A.
name: Chow, John W.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2010

description: The purpose of this study was to investigate postural control in children with Autism Spectrum Disorders (ASD) during static and dynamic postural challenges. We evaluated postural sway during quiet standing and the center of pressure (COP) shift mechanism during gait initiation for thirteen children with ASD and twelve age matched typically developing (TD) children. Children with ASD produced 438% greater normalized mediolateral sway (p<0.05) and 104% greater normalized anteroposterior sway (p<0.05) than TD children. Consequently, normalized sway area was also significantly greater (p<0.05) in the group with ASD. Similarly, the maximum separation between the COP and center of mass (COM) during quiet stance was 100% greater in the anteroposterior direction (p<0.05) and 146% greater in the resultant direction (p<0.05) for children with ASD. No significant difference was observed in the mediolateral direction, in spite of the 123 % greater separation detected in children with ASD. During gait initiation, no group differences were detected in the posterior COP shift mechanism, suggesting the mechanism for generating forward momentum is intact. However, significantly smaller lateral COP shifts (p<0.05) were observed in children with ASD, suggesting instability or an alternative strategy for generating momentum in the mediolateral direction. These results help clarify some discrepancies in the literature, suggesting an impaired or immature control of posture, even under the most basic conditions when no afferent or sensory information have been removed or modified. Additionally, these findings provide new insight into dynamic balance in children with ASD.
Self-Employed Workers Are Less Likely To Have Health Insurance Than Those Employed by Private Firms, Governments
Creators: name: Dobis, Elizabeth
name: Todd, Jessica
name: Dobis, Elizabeth
name: Todd, Jessica
Publisher: name: Unknown
Year: 2022

description: In 2018, health insurance coverage rates and patterns in metropolitan (metro) and nonmetropolitan (nonmetro) areas were similar, according to research by the USDA, Economic Research Service (ERS). That year, 88.9 percent of working-age adults (aged 26–64) in metro counties and 87.5 percent of those in nonmetro counties had health insurance coverage. The source of employment had a greater effect on health insurance coverage than whether a worker lived in a nonmetro or metro county. In 2018, self-employed working-age adults were less likely to have health insurance coverage than those employed by private firms or governments, no matter where they lived (metropolitan or nonmetropolitan area). As a result, they may have found it difficult to access health care, as affordability often is tied to health insurance coverage.
Reliability of plantar pressure platforms
Creators: name: Song, Jinsup
name: Lenhoff, Mark W.
name: Hafer, Jocelyn F.
name: Hannan, Marian T.
name: Jordan, Joanne M.
name: Hillstrom, Howard J.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2013

description: Plantar pressure measurement is common practice in many research and clinical protocols. While the accuracy of some plantar pressure measuring devices and methods for ensuring consistency in data collection on plantar pressure measuring devices have been reported, the reliability of different devices when testing the same individuals is not known. This study calculated intra-mat, intra-manufacturer, and inter-manufacturer reliability of plantar pressure parameters as well as the number of plantar pressure trials needed to reach a stable estimate of the mean for an individual. Twenty-two healthy adults completed ten walking trials across each of two Novel emed-x® and two Tekscan MatScan® plantar pressure measuring devices in a single visit. Intraclass correlation (ICC) was used to describe the agreement between values measured by different devices. All intra-platform reliability correlations were greater than 0.70. All inter-emed-x® reliability correlations were greater than 0.70. Inter-emed-x® reliability correlations were greater than 0.70 in 31 and 52 of 56 parameters when looking at a 10-trial average and a 5-trial average, respectively. Inter-manufacturer reliability including all four devices was greater than 0.70 for 52 and 56 of 56 parameters when looking at a 10-trial average and a 5-trial average, respectively. All parameters reached a value within 90% of an unbiased estimate of the mean within five trials. Overall, reliability results are encouraging for investigators and clinicians who may have plantar pressure data sets that include data collected on different devices.
USDA’s New Interactive Visualization Tool Aids Exploration of Global Agricultural Trends
Creators: name: Gerval, Adam
name: Gerval, Adam
Publisher: name: Unknown
Year: 2022

description: USDA, Economic Research Service (ERS) has developed a new tool to help explore trends in global agriculture from an array of international data. The tool, the International Baseline Visualization, is available on the ERS website. It provides users with access to data for 44 exporting and importing countries and regions in conjunction with USDA’s agricultural commodity and macroeconomic models. The tool includes data for aggregated regional models for which USDA regularly reports, such as “Other Europe” and “Other South America.” The tool not only contains international data, but it also houses domestic data for the United States. Historical and projected data for production, consumption, and trade are available through a custom data query function that allows users to download data by commodity, continent, and region or country.
Interference Spins: Scheduling of Multiple Interfering Two-Way Wireless Links
Creators: name: Popovski, Petar
name: Simeone, Osvaldo
name: Nielsen, Jimmy J.
name: Stefanović, Čedomir
Publisher: name: arXiv
Year: 2015
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: Two-way is a dominant mode of communication in wireless systems. Departing from the tradition to optimize each transmission direction separately, recent work has demonstrated that, for time-division duplex (TDD) systems, optimizing the schedule of the two transmission directions depending on traffic load and interference condition leads to performance gains. In this letter, a general network of multiple interfering two-way links is studied under the assumption of a balanced load in the two directions for each link. Using the notion of interference spin, we introduce an algebraic framework for the optimization of two-way scheduling, along with an efficient optimization algorithm that is based on the pruning of a properly defined topology graph and dynamic programming. Numerical results demonstrate multi-fold rate gains with respect to baseline solutions, especially for worst-case (5%-ile) rates.
description: Accepted for publication in IEEE Communications Letters
Pilot Study of an Active Screen Time Game Correlates with Improved Physical Fitness in Minority Elementary School Youth
Creators: name: Bethea, Terrence C.
name: Berry, Diane
name: Maloney, Ann E.
name: Sikich, Linmarie
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2012

description: The aim of our feasibility study was to examine the acceptability and utility of “Dance Dance Revolution” (DDR) (Konami of America, Redwood City, CA)) to increase physical fitness in 8–11-year-old black and Hispanic youth.
U.S. Agricultural Trade Showed Resiliency Through COVID-19 Pandemic
Creators: name: Gerval, Adam
name: Gerval, Adam
Publisher: name: Unknown
Year: 2022

description: The overall value of U.S. agricultural trade increased in 2020 and 2021, despite global economic downturns from the Coronavirus (COVID-19) pandemic. In 2020, the United States exported $149.7 billion in agricultural exports, 6.1 percent more than the previous year and a 5-year high. The next year (2021), the value of U.S. agricultural exports rose an additional 18.9 percent to $177.0 billion. Soybean exports to China accounted for much of the increase in 2020, concentrated in the final 3 months of 2020 and offsetting declines in the value of many other U.S. agricultural exports in the early months of the pandemic.
Prostaglandins I2 and E2 have a synergistic role in rescuing epithelial barrier function in porcine ileum.
Creators: name: Rhoads, J M
name: Roberts, M C
name: Argenzio, R A
name: Blikslager, A T
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1997

description: Prostaglandins (PG) are cytoprotective for gastrointestinal epithelium, possibly because they enhance mucosal repair. The objective of the present studies was to assess the role of prostaglandins in intestinal repair. Intestinal mucosa from porcine ileum subjected to 1 h of ischemia was mounted in Ussing chambers. Recovery of normal transepithelial electrical resistance occurred within 2 h, and continued to increase for a further 2 h to a value twice that of control. The latter response was blocked by inhibition of prostaglandin synthesis, and restored by addition of both carbacyclin (an analog of PGI2) and PGE2, whereas the addition of each alone had little effect. Histologically, prostaglandins had no effect on epithelial restitution or villous contraction, indicating that elevations in transepithelial resistance were associated with increases in paracellular resistance. Furthermore, prostaglandin-stimulated elevations in resistance were inhibited with cytochalasin D, an agent known to stimulate cytoskeletal contraction. Synergistic elevations in transepithelial resistance, similar to those of carbacyclin and PGE2, were also noted after treatment with cAMP and {"type":"entrez-nucleotide","attrs":{"text":"A23187","term_id":"833253","term_text":"A23187"}}A23187 (a calcium ionophore). We conclude that PGE2 and PGI2 have a synergistic role in restoration of intestinal barrier function by increasing intracellular cAMP and Ca2+, respectively, which in turn signal cytoskeletal-mediated tight junction closure.
Particle Number Fluctuations for van der Waals Equation of State
Creators: name: Vovchenko, V.
name: Anchishkin, D. V.
name: Gorenstein, M. I.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Nuclear Theory (nucl-th)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The van der Waals (VDW) equation of state describes a thermal equilibrium in system of particles, where both repulsive and attractive interactions between them are included. This equation predicts an existence of the 1st order liquid-gas phase transition and the critical point. The standard form of the VDW equation is given by the pressure function in the canonical ensemble (CE) with a fixed number of particles. In the present paper the VDW equation is transformed to the grand canonical ensemble (GCE). We argue that this procedure can be useful for new physical applications. Particularly, the fluctuations of number of particles, which are absent in the CE, can be studied in the GCE. For the VDW equation of state in the GCE the particle number fluctuations are calculated for the whole phase diagram, both outside and inside the liquid-gas mixed phase region. It is shown that the scaled variance of these fluctuations remains finite within the mixed phase and goes to infinity at the critical point. The GCE formulation of the VDW equation of state can be also an important step for its application to a statistical description of hadronic systems, where numbers of different particle species are usually not conserved.
description: 19 pages, 5 figures, typos corrected, fluctuations in metastable states added
Expression of Intrinsic Factor in Rat and Murine Gastric Mucosal Cell Lineages Is Modified by Inflammation
Creators: name: Sartor, R. Balfour
name: Lichtenberger, Lenard M.
name: Alpers, David H.
name: Shao, Jian-su
name: Dial, Elisabeth
name: Schepp, Wolfgang
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2000

description: Intrinsic factor is produced primarily by chief cells in rat and mouse, but 4 to 11% of isolated rat parietal cells also contain intrinsic factor. To test whether local conditions could alter the distribution of intrinsic factor expression, two rodent models of chronic lymphocytic gastric inflammation were examined. Immunocytochemistry was performed using antiserum against human intrinsic factor and H/K ATPase (a parietal cell marker), counting the percent of intrinsic factor-positive parietal cells. HLA-B27 transgenic rats develop chronic gastritis at age 3 months. Congenic controls expressed intrinsic factor in 8.9 ± 3.8% (mean ± SD) of parietal cells; in inflamed areas of transgenic rats 21 ± 5.2% (P < 0.0001) of parietal cells were positive. In adjacent areas without inflammatory infiltrate 16 ± 3.6% of parietal cells contained intrinsic factor. C57BL/6 mice inoculated with Helicobacter felis develop gastritis by 4 weeks. After 4 and 8 weeks of infection, intrinsic factor-positive parietal cells increased from 7.8 ± 2.8% in the congenic controls to 17.6 ± 4.1% in the inflamed gastric body (P < 0.0001). Isolated rat parietal cells incubated with interleukin-1β demonstrated a twofold increase in intrinsic factor-positive parietal cells. These studies are consistent with the concept that intrinsic factor expression is both predetermined in chief cells and can be expressed in parietal cells in response to local inflammatory factors. The differences between inflamed and adjacent noninflamed areas in the rat model suggest a tissue gradient of soluble inducer(s), possibly cytokines.
Entropy and Complexity of Polygonal Billiards with Spy Mirrors
Creators: name: Skripchenko, Alexandra
name: Troubetzkoy, Serge
Publisher: name: arXiv
Year: 2015
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics

description: We prove that a polygonal billiard with one-sided mirrors has zero topological entropy. In certain cases we show sub exponential and for other polynomial estimates on the complexity.
Eosinophilic Esophagitis
Creators: name: Dellon, Evan S.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2013

description: Eosinophilic esophagitis (EoE) is a chronic immune-mediated condition where infiltration of eosinophils into the esophageal mucosa leads to symptoms of esophageal dysfunction. It has rapidly emerged as an important cause of upper GI morbidity in patients of all ages and is encountered in a substantial proportion of patients undergoing diagnostic upper endoscopy. This review discusses the clinical, endoscopic, and histologic features of EoE and presents the most recent guidelines for diagnosis of EoE. It describes selected diagnostic dilemmas including distinguishing EoE from gastroesophageal reflux disease and addressing the newly recognized clinical entity of proton pump inhibitor responsive esophageal eosinophilia. It also highlights evidence to support both pharmacologic and non-pharmacologic treatments, including topical corticosteroids, dietary elimination therapy, and endoscopic dilation.