cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A Pilot Clinical Study in Characterization of Malignant Renal-cell Carcinoma Subtype with Contrast-enhanced Ultrasound
Creators: name: Kasoji, Sandeep K.
name: Rathmell, W. Kimryn
name: Chong, Wui K.
name: Dayton, Paul A.
name: Mullin, Lee B.
name: Chang, Emily H.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2017

description: Malignant renal cell carcinoma (RCC) is a diverse set of diseases, which are independently difficult to characterize using conventional MRI and CT protocols due to low temporal resolution to study perfusion characteristics. Because different disease subtypes have different prognoses and involve varying treatment regimens, the ability to determine RCC subtype non-invasively is a clinical need. Contrast-enhanced ultrasound (CEUS) has been assessed as a tool to characterize kidney lesions based on qualitative and quantitative assessment of perfusion patterns, and we hypothesize that this technique might help differentiate disease subtypes. Twelve patients with RCC confirmed pathologically were imaged using contrast-enhanced ultrasound. Time intensity curves were generated and analyzed quantitatively using ten characteristic metrics. Results showed that peak intensity (p=0.001) and time-to-80% on wash-out (p=0.004) provided significant differences between clear cell, papillary, and chromophobe RCC subtypes. These results suggest that CEUS may be a feasible test for characterizing RCC subtypes.
Die Situation naturwissenschaftlicher Bildungsstandards in Österreich am Beispiel der Biologie
Creators: name: Schiffl, Iris
Publisher: name: Zeitschrift für Didaktik der Biologie (ZDB) - Biologie Lehren und Lernen
Year: 2016

description: Naturwissenschaftliche Bildungsstandards werden in Österreich seit 2005 entwickelt und sind seither auch Gegenstand fachdidaktischer Forschung. Obwohl die Einführung von Bildungsstandards rechtlich für die Naturwissenschaften nicht geregelt ist, wurden dennoch zahlreiche Entwicklungen vorangetrieben. So wurden Kompetenzstrukturmodelle für die Sekundarstufen I und II erstellt, es wurden Unterrichtsaufgaben für Lehrpersonen zur Verfügung gestellt, die die Anwendung der Kompetenzen im Unterricht demonstrieren und seit einiger Zeit werden Diagnoseinstrumente für den Einsatz durch die Lehrpersonen entwickelt und evaluiert. Viele dieser Entwicklungen, wie die Evaluation des Kompetenzstrukturmodells oder die Erstellung von Diagnoseaufgaben, beschränken sich jedoch auf die Sekundarstufe I. Dieser Beitrag beleuchtet die ambivalente Stellung der naturwissenschaftlichen Bildungsstandards in Österreich am Beispiel der Biologie und geht dabei auf unterschiedliche Entwicklungen in der Sekundarstufe I und II ein. Dabei werden sowohl abgeschlossene Forschungsprojekte als auch Desiderata für die zukünftige Forschung in diesem Bereich diskutiert.
description: Zeitschrift für Didaktik der Biologie (ZDB) - Biologie Lehren und Lernen, Bd. 20 (2016)
Gracilaria gardneri Gurgel, J. N. Norris et Fredericq 2018, comb. nov.
Creators: name: Gurgel, Carlos Frederico D.
name: Norris, James N.
name: Schmidt, William E.
name: Le, Hau Nhu
name: Fredericq, Suzanne
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Plantae
Rhodophyta
Florideophyceae
Gigartinales
Gracilariaceae
Gracilaria
Gracilaria gardneri

description: Gracilaria gardneri (Setchell) Gurgel, J.N. Norris et Fredericq, comb. nov.
 BASIONYM: Gracilariophila gardneri Setchell 1923: 393.
 TYPE LOCALITY: on Gracilaria cunninghamii Farlow ex J. Agardh; Santa Monica, Los Angeles County, California, USA.
description: Published as part of Gurgel, Carlos Frederico D., Norris, James N., Schmidt, William E., Le, Hau Nhu & Fredericq, Suzanne, 2018, Systematics of the Gracilariales (Rhodophyta) including new subfamilies, tribes, subgenera, and two new genera, Agarophyton gen. nov. and Crassa gen. nov., pp. 1-23 in Phytotaxa 374 (1) on page 7, DOI: 10.11646/phytotaxa.374.1.1, http://zenodo.org/record/13727130
Contextual Analysis for Middle Eastern Languages with Hidden Markov Models
Creators: name: Taghva, Kazem
Publisher: name: arXiv
Year: 2015
Subjects: subject: Computation and Language (cs.CL)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Displaying a document in Middle Eastern languages requires contextual analysis due to different presentational forms for each character of the alphabet. The words of the document will be formed by the joining of the correct positional glyphs representing corresponding presentational forms of the characters. A set of rules defines the joining of the glyphs. As usual, these rules vary from language to language and are subject to interpretation by the software developers. In this paper, we propose a machine learning approach for contextual analysis based on the first order Hidden Markov Model. We will design and build a model for the Farsi language to exhibit this technology. The Farsi model achieves 94 \% accuracy with the training based on a short list of 89 Farsi vocabularies consisting of 2780 Farsi characters. The experiment can be easily extended to many languages including Arabic, Urdu, and Sindhi. Furthermore, the advantage of this approach is that the same software can be used to perform contextual analysis without coding complex rules for each specific language. Of particular interest is that the languages with fewer speakers can have greater representation on the web, since they are typically ignored by software developers due to lack of financial incentives.
Adaptive windowing in contrast-enhanced intravascular ultrasound imaging
Creators: name: Lindsey, Brooks D.
name: Martin, K. Heath
name: Jiang, Xiaoning
name: Dayton, Paul A.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: Intravascular ultrasound (IVUS) is one of the most commonly-used interventional imaging techniques and has seen recent innovations which attempt to characterize the risk posed by atherosclerotic plaques. One such development is the use of microbubble contrast agents to image vasa vasorum, fine vessels which supply oxygen and nutrients to the walls of coronary arteries and typically have diameters less than 200 µm. The degree of vasa vasorum neovascularization within plaques is positively correlated with plaque vulnerability. Having recently presented a prototype dual-frequency transducer for contrast agent-specific intravascular imaging, here we describe signal processing approaches based on minimum variance (MV) beamforming and the phase coherence factor (PCF) for improving the spatial resolution and contrast-to-tissue ratio (CTR) in IVUS imaging. These approaches are examined through simulations, phantom studies, ex vivo studies in porcine arteries, and in vivo studies in chicken embryos. In phantom studies, PCF processing improved CTR by a mean of 4.2 dB, while combined MV and PCF processing improved spatial resolution by 41.7%. Improvements of 2.2 dB in CTR and 37.2% in resolution were observed in vivo. Applying these processing strategies can enhance image quality in conventional B-mode IVUS or in contrast-enhanced IVUS, where signal-to-noise ratio is relatively low and resolution is at a premium.
Polypeptide A9K at Nanoscale Carbon: Simulation Study
Creators: name: Chaban, Vitaly V.
name: Arruda, Andre
name: Fileti, Eudes Eterno
Publisher: name: arXiv
Year: 2015
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: An amphiphilic nature of the surfactant-like peptides is responsible for their propensity to aggregate at the nanoscale. These peptides can be readily used for a non-covalent functionalization of nanoparticles and macromolecules. This work reports an observation of supramolecular ensembles consisting of ultrashort carbon nanotubes (USCNTs), graphene (GR) and A9K polypeptide formed by lysine and arginine. Potential of mean force (PMF) is used as a major descriptor of the CNT-A9K and GR-A9K binding process, supplementing structural data. The phase space sampling is performed by multiple equilibrium molecular dynamics simulations with position restraints, where applicable. Binding in all cases was found to be thermodynamically favorable. Encapsulation in the (10,10) USCNT is particularly favorable. Curvature of external surface does not favor binding. Thus, binding of A9K at GR is stronger than its binding at the outer sidewall of USCNTs. Overall, the presented results favor non-covalent functionalization of nanoscale carbons that are considered interesting in the fields of biomaterials, biosensors, biomedical devices, and drug delivery.
Reconciling the light component and all-particle cosmic ray energy spectra at the knee
Creators: name: Zhao, Yi
name: Jia, Huan-Yu
name: Zhu, Feng-Rong
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The knee phenomenon of the cosmic ray spectrum, which plays an important role in studying the acceleration mechanism of cosmic rays, is still an unsolved mystery. We try to reconcile the knee spectra measured by ARGO-YBJ and Tibet-III. A simple broken power-law model fails to explain the experimental data. Therefore a modified broken power-law model with non-linear acceleration effects is adopted, which can describe the sharp knee structure. This model predicts that heavy elements dominate at the knee.
description: 5 pages, 5 figures
A nonconforming immersed finite element method for elliptic interface problems
Creators: name: Lin, Tao
name: Sheen, Dongwoo
name: Zhang, Xu
Publisher: name: arXiv
Year: 2015
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: A new immersed finite element (IFE) method is developed for second-order elliptic problems with discontinuous diffusion coefficient. The IFE space is constructed based on the rotated Q1 nonconforming finite elements with the integral-value degrees of freedom. The standard nonconforming Galerkin method is employed in this IFE method without any penalty stabilization term. Error estimates in energy and L2 norms are proved to be better than $O(h\sqrt{|\log h|})$ and $O(h^2|\log h|)$, respectively, where the logarithm factors reflect jump discontinuity. Numerical results are reported to confirm our analysis.
Effects of Stone Size on the Comminution Process and Efficiency in Shock Wave Lithotripsy
Creators: name: Iversen, Edwin S.
name: Mitran, Sorin
name: Nault, Isaac
name: Zhang, Ying
name: Zhong, Pei
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: The effects of stone size on the process and comminution efficiency in shock wave lithotripsy (SWL) are investigated by experiments, numerical simulations, and scale analysis. Cylindrical BegoStone phantoms with approximately equal height and diameter of either 4-, or 7- or 10-mm, in a total aggregated mass of about 1.5 g, were treated in an electromagnetic shock wave lithotripter field. The resultant stone comminution (SC) was found to correlate closely with the average peak pressure, P+(avg), incident on the stones. The P+(avg) threshold to initiate stone fragmentation in water increased from 7.9 to 8.8 to 12.7 MPa, respectively, when the stone size decreased from 10 to 7 to 4 mm. Similar changes in the P+(avg) threshold were observed for the 7- and 10-mm stones treated in 1,3-butanediol where cavitation is suppressed, suggesting that the observed size dependency is due to changes in stress distribution within different size stones. Moreover, the slope of the correlation curve between SC and ln(P‒+(avg)) in water increased with decreasing stone size, while the opposite trend was observed in 1,3-butanediol. The progression of stone comminution in SWL showed a size-dependency with the 7- and 10-mm stones fragmented into progressively smaller pieces while a significant portion (> 30%) of the 4-mm stones were stalemated within the size range of 2.8 ~ 4 mm even after 1,000 shocks. Analytical scaling considerations suggest size-dependent fragmentation behaviour, a hypothesis further supported by numerical model calculations that exhibit changing patterns of constructive and destructive wave interference, and thus variations in the maximum tensile stress or stress integral produced in cylindrical and spherical stone of different sizes.
Gracilaria (Corallopsis) Gurgel, J. N. Norris et Fredericq
Creators: name: Gurgel, Carlos Frederico D.
name: Norris, James N.
name: Schmidt, William E.
name: Le, Hau Nhu
name: Fredericq, Suzanne
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Plantae
Rhodophyta
Florideophyceae
Gigartinales
Gracilariaceae
Gracilaria

description: Gracilaria subgen. Corallopsis Gurgel, J.N. Norris et Fredericq, stat. et comb. nov.
 TYPE: Corallopsis Greville 1830: liii.
 TYPE SPECIES: Corallopsis salicornia (C. Agardh) Greville 1830: liii; basionym: Sphaerococcus salicornia C. Agardh, 1820: pl. VI, which is now Gracilaria salicornia (C. Agardh) E.Y. Dawson 1954: 4.
 TYPE LOCALITY: “ ad litora Unalaschka, ” [Alaska] (Agardh 1820, 1822); probably mistakenly cited, Dawson (1954: 4) noted locale more likely is from Manila Bay, Philippine Islands, and Abbott (1994) stated due to a mix-up of labels.
 DIAGNOSIS: Spermatangia confined to deep cortical conceptacles or pits (i.e., the verrucosa - type sensu Yamamoto 1975, 1978) embedded only in the cortex and not interacting with medullary cells. Gonimoblasts composed of loosely arranged ovoid vacuolated cells bearing clusters of carposporangia at the periphery in short branched chains; nutritive tubular cells extending to top, sides, and base of outer pericarp, multinucleate, inflated towards base, sometimes with more than one tubular cell fusion with pericarp cell; pericarp fusion cells tubular or branched; pericarp cells arranged regularly in young cystocarps, the inner layers darkly staining and stretched laterally at maturity; carpogonial fusion cell multinucleate, cubic to ovoid in young carposporophytes, compressed in older cystocarps, embedded within inner pericarp. Tetrasporangia superficial, not in sori.
 REMARKS: The name Corallopsis Greville (1830) appears in the same publication as Gracilaria and both are validly published names, with the latter conserved (Steentoft et al. 1991).
 PERTINENT SPECIES IN GRACILARIA SUBGEN. CORALLOPSIS: Gracilaria articulata C.F.Chang et B.M.Xia; G. dura (C.Agardh) J.Agardh; G. gracilis (Stackhouse) Steentoft, Irvine et Farnham; G. canaliculata Sonder; G. pacifica I.A. Abbott; G. salicornia (C. Agardh) E.Y. Dawson.
 Based on other published studies: G. rhodymenioides A. Millar (see Muangmai et al. (2017).
description: Published as part of Gurgel, Carlos Frederico D., Norris, James N., Schmidt, William E., Le, Hau Nhu & Fredericq, Suzanne, 2018, Systematics of the Gracilariales (Rhodophyta) including new subfamilies, tribes, subgenera, and two new genera, Agarophyton gen. nov. and Crassa gen. nov., pp. 1-23 in Phytotaxa 374 (1) on pages 7-8, DOI: 10.11646/phytotaxa.374.1.1, http://zenodo.org/record/13727130
Dilepton and photon production in the presence of a nontrivial Polyakov loop
Creators: name: Hidaka, Yoshimasa
name: Lin, Shu
name: Pisarski, Robert D.
name: Satow, Daisuke
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We calculate the production of dileptons and photons in the presence of a nontrivial Polyakov loop in QCD. This is applicable to the semi-Quark Gluon Plasma (QGP), at temperatures above but near the critical temperature for deconfinement. The Polyakov loop is small in the semi-QGP, and near unity in the perturbative QGP. Working to leading order in the coupling constant of QCD, we find that there is a mild enhancement, ~ 20%, for dilepton production in the semi-QGP over that in the perturbative QGP. In contrast, we find that photon production is strongly suppressed in the semi-QGP, by about an order of magnitude, relative to the perturbative QGP. In the perturbative QGP photon production contains contributions from 2->2 scattering and collinear emission with the Landau- Pomeranchuk-Migdal (LPM) effect. In the semi-QGP we show that the two contributions are modified differently. The rate for 2->2 scattering is suppressed by a factor which depends upon the Polyakov loop. In contrast, in an SU(N) gauge theory the collinear rate is suppressed by 1/N, so that the LPM effect vanishes at infinite N. To leading order in the semi-QGP at large N, we compute the rate from 2->2 scattering to the leading logarithmic order and the collinear rate to leading order.
Ex Vivo Porcine Arterial and Chorioallantoic Membrane Acoustic Angiography Using Dual-Frequency Intravascular Ultrasound Probes
Creators: name: Martin, K. Heath
name: Jiang, Xiaoning
name: Lindsey, Brooks D.
name: Nichols, Timothy C.
name: Ma, Jianguo
name: Dayton, Paul A.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: The presence of blood vessels within a developing atherosclerotic plaque has been shown to be correlated to increased plaque vulnerability and ensuing cardiac events, however, detecting coronary intraplaque neovascularizations poses a significant challenge in the clinic. In this paper, we demonstrate in vivo a new intravascular ultrasound imaging method using a dual-frequency transducer to visualize contrast flow in microvessels with high specificity. This method uses a specialized transducer capable of exciting contrast agents at a low frequency (5.5 MHz) while detecting their nonlinear superhamonics at a much higher frequency (37 MHz). In vitro evaluation of the approach was performed in a microvascular phantom to produce 3D renderings of simulated vessel patterns and to determine image quality metrics as a function of depth. Furthermore, the ability of the system to detect microvessels is demonstrated both ex vivo using porcine arteries and in vivo using the chorioallantoic membrane of a developing chicken embryo with optical confirmation. Dual-frequency contrast specific imaging was able to resolve vessels of a similar size to those found in vulnerable atherosclerotic plaques at clinically relevant depths. The results of this study adds growing support for further evaluation and translation of contrast specific imaging in intravascular ultrasound for the detection of vulnerable plaques in atherosclerosis.
Topological phenotypes constitute a new dimension in the phenotypic space of leaf venation networks
Creators: name: Ronellenfitsch, Henrik
name: Lasser, Jana
name: Daly, Douglas C.
name: Katifori, Eleni
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantitative Methods (q-bio.QM)
subject: FOS: Biological sciences

description: The leaves of angiosperms contain highly complex venation networks consisting of recursively nested, hierarchically organized loops. We describe a new phenotypic trait of reticulate vascular networks based on the topology of the nested loops. This phenotypic trait encodes information orthogonal to widely used geometric phenotypic traits, and thus constitutes a new dimension in the leaf venation phenotypic space. We apply our metric to a database of 186 leaves and leaflets representing 137 species, predominantly from the Burseraceae family, revealing diverse topological network traits even within this single family. We show that topological information significantly improves identification of leaves from fragments by calculating a "leaf venation fingerprint" from topology and geometry. Further, we present a phenomenological model suggesting that the topological traits can be explained by noise effects unique to specimen during development of each leaf which leave their imprint on the final network. This work opens the path to new quantitative identification techniques for leaves which go beyond simple geometric traits such as vein density and is directly applicable to other planar or sub-planar networks such as blood vessels in the brain.
Molecular Acoustic Angiography: A New Technique for High-resolution Superharmonic Ultrasound Molecular Imaging
Creators: name: Foster, F. Stuart
name: Lindsey, Brooks D.
name: Dayton, Paul A.
name: Tsuruta, James K.
name: Shelton, Sarah E.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: Ultrasound molecular imaging utilizes targeted microbubbles to bind to vascular targets such as integrins, selectins, and other extracellular binding domains. After binding, these microbubbles are typically imaged using low pressures and multi-pulse imaging sequences. In this article, we present an alternative approach for molecular imaging using ultrasound which relies on superharmonic signals produced by microbubble contrast agents. Bound bubbles were insonified near resonance using a low frequency (4 MHz) and superharmonic echoes were received at high frequencies (25–30 MHz). While this approach was observed to produce declining image intensity during repeated imaging in both in vitro and in vivo experiments due to bubble destruction, the feasibility of superharmonic molecular imaging was demonstrated for transmit pressures which are sufficiently high to induce shell disruption in bound microbubbles. This approach was validated using microbubbles targeted to the αvβ3 integrin in a rat fibrosarcoma model (n=5), and combined with superharmonic images of free microbubbles to produce high contrast, high resolution 3D volumes of both microvascular anatomy and molecular targeting. Image intensity over repeated scans and the effect of microbubble diameter were also assessed in vivo, indicating that larger microbubbles yield increased persistence in image intensity. Using ultrasound-based acoustic angiography images rather than conventional B-mode ultrasound to provide the underlying anatomical information facilitates anatomical localization of molecular markers. Quantitative analysis of relationships between microvasculature and targeting information indicated that most targeting occurred within 50 µm of a resolvable vessel (>100 µm diameter). The combined information provided by these scans may present new opportunities for analyzing relationships between microvascular anatomy and vascular targets, subject only to limitations of the current mechanically-scanned system and microbubble persistence to repeated imaging at moderate mechanical indices.
Breast CAncer STratification project (B-CAST) gene panel
Creators: name: B-CAST Gene Panel Development Team
Publisher: name: Zenodo
Year: 2023

description: As part of the Breast CAncer STratification (B-CAST) project, we developed a gene panel composed of 323 genes that are frequently mutated in breast cancer and its molecular subtypes. The gene panel was constructed by combining results from a pooled analysis of individual patient data from 11 large-scale breast cancer sequencing studies and manual selection of genes with known associations with breast cancer. Here, we provide details on the construction of the B-CAST gene panel.
Functional roles of Aves class specific cis-regulatory elements on macroevolution of bird-specific features
Creators: name: BGI
Publisher: name: CNGB
Year: 2015
Subjects: Epigenomics
Multiisolate

description: We carried out a comparative genomic analysis of 48 avian species to identify avian-specific highly conserved elements (ASHCEs). We performed genome-wide chromatin immunoprecipitation sequencing (ChIP-seq) for three enhancer-associated histone modifications (H3K4me1, H3K27ac, H3K27me3), to investigate dynamic regulatory roles of ASHCEs in chicken development. We found that all three enhancer-associated histone marks are enriched in ASHCEs compared to the whole genome background.Overall design: ChIP-seq analyses for three known enhancer-associated histone modifications (H3K4me1, H3K27ac and H3K27me3) with samples from developing chicken embryos at stages HH16, HH21 and HH32 respectively and samples from developing limbs at stages HH21 and HH32 respectively with two biological replicates.
Aria del mare mediterraneo nella poesia di Vito Adamo
Creators: name: Zografidou, Zosi
Publisher: name: iNTERCULTURAL tRANSLATION iNTERSEMIOTIC
Year: 2025
Subjects: Poesia italiana contemporanea; Letteratura del mare; Mediterraneo; Zosi Zografidou; Vito Adamo; Poesia del mare; Puglia

description: L'obiettivo di questo lavoro è l'approccio interpretativo e l'analisi letteraria della raccolta di poesie di Vito Adamo al titolo In quest'infinito: processi che costituiscono la prima fase, quella dell'interpretazione, dell'analisi filologica e critica dell'opera, che è fondamentale, prima di passare alla seconda fase del processo e dell’approccio puramente traduttologici dell'opera. Le poesie di questa raccolta parlano di una vita vissuta e sognata vicino al mare della Puglia. Il poeta ha la capacità di catturare con sensibilità poetica le immagini, di imprimere i colori mediterranei, di riflettere in silenzio,  ascoltare i silenzi e i rumori della natura. Ci fa intraprendere un viaggio attraverso la memoria, i luoghi, i sentimenti e tutto ciò che descrive.

Στόχος της παρούσης μελέτης είναι η ερμηνευτική προσέγγιση και η λογοτεχνική ανάλυση της ποιητικής συλλογής του Vito Adamo με τίτλο In quest’infinito: διαδικασίες που αποτελούν το πρώτο στάδιο, αυτό της ανάλυσης, της ερμηνείας, της φιλολογικής και κριτικής μελέτης του έργου, το οποίο είναι βασικό και πρωταρχικό, πριν ακολουθήσει το δεύτερο στάδιο της της μεταφραστικής προσέγγισης του έργου.  Τα ποιήματα αυτής της συλλογής μιλούν για τη ζωή που βίωσε ο ποιητής και ονειρεύτηκε δίπλα στη θάλασσα της Απουλίας. Ο Adamo έχει την ικανότητα να προσλαμβάνει εικόνες με ποιητική ευαισθησία, να αποτυπώνει μεσογειακά χρώματα, να στοχάζεται στη σιωπή, να ακούει τις σιωπές και τους θορύβους της φύσης. Μας ταξιδεύει μέσα από τη μνήμη, τους τόπους, τα συναισθήματα και όλα όσα περιγράφει.
description: iNTERCULTURAL tRANSLATION iNTERSEMIOTIC, Vol 14, No 1 (2025)
Upper bounds for the dimension of tori acting on GKM manifolds
Creators: name: Kuroki, Shintaro
Publisher: name: arXiv
Year: 2015
Subjects: subject: Geometric Topology (math.GT)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 57S25

description: The aim of this paper is to give an upper bound for the dimension of a torus $T$ which acts on a GKM manifold $M$ effectively. In order to do that, we introduce a free abelian group of finite rank, denoted by $\mathcal{A}(Γ,α,\nabla)$, from an (abstract) $(m,n)$-type GKM graph $(Γ,α,\nabla)$. Here, an $(m,n)$-type GKM graph is the GKM graph induced from a $2m$-dimensional GKM manifold $M^{2m}$ with an effective $n$-dimensional torus $T^{n}$-action, say $(M^{2m},T^{n})$. Then it is shown that $\mathcal{A}(Γ,α,\nabla)$ has rank $\ell(> n)$ if and only if there exists an $(m,\ell)$-type GKM graph $(Γ,\widetildeα,\nabla)$ which is an extension of $(Γ,α,\nabla)$. Using this necessarily and sufficient condition, we prove that the rank of $\mathcal{A}(Γ,α,\nabla)$ for the GKM graph of $(M^{2m},T^{n})$ gives an upper bound for the dimension of a torus which can act on $M^{2m}$ effectively. As an application, we compute the rank of $\mathcal{A}(Γ,α,\nabla)$ of the complex Grassmannian of $2$-planes $G_{2}(\mathbb{C}^{n+2})$ with some effective $T^{n+1}$-action, and prove that the $T^{n+1}$-action on $G_{2}(\mathbb{C}^{n+2})$ is the maximal effective torus action.
description: 22 pages, 9 figures, v2: correct some notations
Utility of ultrasound examination at 10-14 weeks prior to cell-free DNA screening for fetal aneuploidy: Ultrasound examination at 10-14 weeks in cell-free DNA screening
Creators: name: Vora,
name: Stamilio,
name: Robinson,
name: Hardisty,
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2017

description: To estimate the frequency of unexpected first-trimester ultrasound findings that would alter prenatal management in pregnant women eligible for cell-free (cf) DNA screening because of advanced maternal age (AMA).
title: Sicheres Remote-Monitoring verteilter Produktionsdaten-Server
Creators: name: Ritzal, Theresa Maria
Publisher: name: iv, 88
Year: 2023
Subjects: subject: 005 Computerprogrammierung, Programme, Daten

description: Die Sicherstellung dauerhafter Verfügbarkeit von produktionsnahen Servern ist für betroffene Firmen eine zunehmende Herausforderung. Bei einem Ausfall, sei er auch nicht von langer Dauer, kommt es bereits zu erheblichen zeitlichen Verzögerungen. Schwerwiegender sind allerdings die monetären Verluste, die durch unzureichende Überwachung der Server entstehen können. Aus diesem Grund liegt ein großes Augenmerk dieser Arbeit auf der Evaluierung und Einführung einer geeigneten Remote-Monitoring-Software für Produktionsdaten-Server, welche sich bei Lohnfertigern der Firma LOGICDATA befinden. Dabei wurden verschiedene Lösungen in einer Testumgebung untersucht und miteinander verglichen. Die zuvor definierten Kriterien wurden von zwei Software-Lösungen weitestgehend erfüllt, welche in der Arbeit detaillierter beschrieben werden. Da die betroffenen Server örtlich verteilt sind, muss auch eine sichere Übertragung der Überwachungsdaten gewährleistet sein. Infolgedessen wurde zusätzlich die bestehende VPN-Verbindung zu den Lohnfertiger-Servern untersucht und mit anderen Lösungen bzw. Protokollen verglichen. Eine mögliche Änderungsempfehlung wurde im Zuge dieser Masterarbeit entworfen, die allerdings gezeigt hat, dass die derzeit eingesetzte Lösung in diesem Anwendungsbereich durchaus Angriffe von außen verhindern kann. Nach dem Evaluierungsprozess in der Testumgebung wurden die ausgewählten Monitoring-Tools auf den tatsächlich eingesetzten Produktionsdaten-Servern erprobt. Die Überwachungsmöglichkeiten werden in Zukunft das Risiko eines Ausfalls bzw. auch die finanziellen Auswirkungen eines solchen für die Firma LOGICDATA minimieren.
description: To ensure the permanent availability of production data server systems, companies like LOGICDATA are obligated to take action in advance to prevent any data failure or loss. Moreover a short interruption of data availability can cause delays in production schedules. Even more serious is the monetary impact for the company, which can result from insufficient server monitoring. For this reason one focus of this thesis lies in the evaluation of appropriate software solutions for the remote monitoring of LOGICDATA's data servers at the manufacturing sites. As a result, recommendations for the implementation of the two selected monitoring tools for the real environment are given. Due to the fact that LOGICDATA's servers are scattered around the globe, a secure transfer of the exchanged data must be guaranteed under all circumstances. Therefor the second focus is put on the examination and comparison of the existing VPN solution to other state-of-the-art protocols. On the one hand, the implementation of the selected monitoring software will enable LOGICDATA to minimise the risk of data failure or loss and monetary impacts. On the other hand, the analysis of the currently used VPN solution showed that it is protective against attacks in this field of application.
Exact formulas for the form factors of local operators in the Lieb-Liniger model
Creators: name: Piroli, Lorenzo
name: Calabrese, Pasquale
Publisher: name: arXiv
Year: 2015
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We present exact formulas for the form factors of local operators in the repulsive Lieb-Liniger model at finite size. These are essential ingredients for both numerical and analytical calculations. From the theory of Algebraic Bethe Ansatz, it is known that the form factors of local operators satisfy a particular type of recursive relations. We show that in some cases these relations can be used directly to derive compact expressions in terms of the determinant of a matrix whose dimension scales linearly with the system size. Our main results are determinant formulas for the form factors of the operators $(Ψ^{\dagger}(0))^2Ψ^2(0)$ and $Ψ^{R}(0)$, for arbitrary integer $R$, where $Ψ$, $Ψ^{\dagger}$ are the usual field operators. From these expressions, we also derive the infinite size limit of the form factors of these local operators in the attractive regime.
description: 26 pages, no figures, v2: minor changes
Attività ed esperienze dei bambini nei Centri per bambini e famiglie
Creators: name: Braga, Piera
Publisher: name: Rivista Italiana di Educazione Familiare
Year: 2016

description: What do children do in the Centers for Children and Families today? What do adults offer to them in terms of activities, learning and social experiences with peers, spaces and materials? Many studies have been conducted focusing on the educational function of centers for children and families, but so far only few of them have addressed the quality of the experiences offered to children in these contexts. In the article we will present the analyses of the group-activities offered to children in the 40 centers for children and families involved in the Italian study.
description: Rivista Italiana di Educazione Familiare, n° 2 luglio-dicembre 2015
Confinement-Higgs Phase Crossover as a Lattice Artifact in 1+1 Dimensions
Creators: name: Cubero, Axel Cortés
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We examine the phase structure of massive Yang-Mills theory in 1+1 dimensions. This theory is equivalent to a gauged principal chiral sigma model. It has been previously shown that the gauged theory has only a confined phase, and no Higgs phase in the continuum, and at infinite volume. There are no massive gluons, but only hadron-like bound states of sigma-model particles. The reason is that the gluon mass diverges, being proportional to the two-point correlation function of the renormalized field of the sigma model at $x=0$. We use exact large-$N$ results to show that after introducing a lattice regularization and typical values of the coupling constants used in Monte Carlo simulations, the gluon mass becomes finite, and even sometimes small. A smooth crossover into a Higgs phase can then appear. For small volumes and large $N$, we find an analytic expression for the gluon mass, which depends on the coupling constants and the volume. We argue that this Higgs phase is qualitatively similar to the one observed in lattice computations at $N=2$.
description: Version accepted for publication in JHEP. Improved discussion of results, references added
L’integrazione dei compiti della madre e del padre nell’educazione dei figli e delle figlie
Creators: name: Zanniello, Giuseppe
Publisher: name: Rivista Italiana di Educazione Familiare
Year: 2016

description: The harmonious development of youth personality requires family stability and a positive emotional atmosphere; both needs are threatened by pedagogical errors both theoretical and practical. Educationalists develop skills in parents when undertaking to understand their real needs refraining from using abstract models. The phenomenological study of the most frequent educational behavior is a good starting point to set training interventions for parents. Human imperfections, experienced in their parents – as their primary caregivers – do not prevent children from achieving their potential once they perceive in them a recognition of mistakes and a desire for improvement. Educational relationships in the family vary significantly in different cultures; so the family pedagogue, instead of providing “recipes”, plunges into the daily life of the parents and develop their analytical skill and the ability to solve problems. The expectations towards the family pedagogue have increased because of the increased number of couples in crisis; the pedagogical training of parents is part of the third university mission.
description: Rivista Italiana di Educazione Familiare, n° 1 gennaio-giugno 2016
Eosinophilic esophagitis: What can we learn from Crohn’s disease?
Creators: name: Schoepfer, Alain M
name: Molina-Infante, Javier
name: Lucendo, Alfredo J.
name: Dellon, Evan S
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2017

description: Eosinophilic esophagitis (EoE) is an emerging esophageal inflammatory disorder affecting children and young adults. As a relatively new disease, EoE is still burdened by frequent diagnostic and therapeutic pitfalls in clinical practice. This manuscript posits a number of similarities with Crohn’s disease, which may help optimize EoE patient management. Commonalities include epidemiologic trends (Westernized diseases, rising incidence, early-life risk factors), diagnostic considerations (symptoms are poor predictors of disease activity, difficulties in disease activity assessment) and therapeutic issues (similar natural history and therapeutic goals, induction and maintenance phases, combination of drug and endoscopic treatment, potential drug interchangeability, long-term unsolved issues). Physicians devoted to EoE should learn from the extraordinary achievements fulfilled in Crohn’s disease: increased disease awareness, multidisciplinary specialized clinics, structured childhood and transition programs, and an ongoing roadmap for personalized treatments, including genetic susceptibility, risk factors for progression, genotype-phenotype correlation, drug monitoring and microbial data.
Agarophyton chilensis Gurgel, J. N. Norris et Fredericq 2018, comb. nov.
Creators: name: Gurgel, Carlos Frederico D.
name: Norris, James N.
name: Schmidt, William E.
name: Le, Hau Nhu
name: Fredericq, Suzanne
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Plantae
Rhodophyta
Florideophyceae
Gracilariales
Gracilariaceae
Agarophyton
Agarophyton chilensis

description: Agarophyton chilensis (C.J. Bird, McLachlan et E.C.Oliveira) Gurgel, J.N.Norris et Fredericq, comb. nov.
 BASIONYM: Gracilaria chilensis C.J.Bird, McLachlan et E.C.Oliveira 1986: 2928, figs. 2–13.
HOLOTYPE: NRCC-9131 (♀).
TYPE LOCALITY: Penco, SE corner of Bahía Concepción, Concepción Province, Bío Bío Region, Chile.
description: Published as part of Gurgel, Carlos Frederico D., Norris, James N., Schmidt, William E., Le, Hau Nhu & Fredericq, Suzanne, 2018, Systematics of the Gracilariales (Rhodophyta) including new subfamilies, tribes, subgenera, and two new genera, Agarophyton gen. nov. and Crassa gen. nov., pp. 1-23 in Phytotaxa 374 (1) on page 8, DOI: 10.11646/phytotaxa.374.1.1, http://zenodo.org/record/13727130
Generalized Transformation Design: metrics, speeds, and diffusion
Creators: name: Kinsler, Paul
name: McCall, Martin W.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: We show that a unified and maximally generalized approach to spatial transformation design is possible, one that encompasses all second order waves, rays, and diffusion processes in anisotropic media. Until the final step, it is unnecessary to specify the physical process for which a specific transformation design is to be implemented. The principal approximation is the neglect of wave impedance, an attribute that plays no role in ray propagation, and is therefore irrelevant for pure ray devices; another constraint is that for waves the spatial variation in material parameters needs to be sufficiently small compared with the wavelength. The key link between our general formulation and a specific implementation is how the spatial metric relates to the speed of disturbance in a given medium, whether it is electromagnetic, acoustic, or diffusive. Notably, we show that our generalised ray theory, in allowing for anisotropic indexes (speeds), generates the same predictions as does a wave theory, and the results are closely related to those for diffusion processes.
description: 14 pages,7 figures
title: Konzeptionierung, Konstruktion und Inbetriebnahme eines Falltests
Creators: name: Kreinz, Philipp
Publisher: name: FH CAMPUS 02 (CAMPUS 02 Fachhochschule der Wirtschaft)
Year: 2023
Subjects: subject: 629 Andere Fachrichtungen der Ingenieurwissenschaften

description: Der Trend zur Produktion in hoher Stückzahl, weltweiter Verfügbarkeit und dass Einführen neuer „smarter“ Artikel nimmt stetig zu. Deswegen sind Hersteller darauf bedacht ein Qualitätssiegel zu erteilen, welches Marktteilnehmer die Entwicklung erschwert und das Aufholen des Vorsprunges verlängert. Dies erfordert jedoch Prüfmethoden der hergestellten Artikel, die zuverlässig und abgestimmt auf die jeweiligen Produkte sind. Aus diesem Grund werden sehr oft maßgeschneiderte Prüfmaschinen, die den Richtlinien der Hersteller entsprechen, konstruiert und integriert. Das Einbringen solcher Methoden lässt Fehler direkt in dem Herstellungsprozess erkennen und mindert den möglichen Schaden der dadurch entstehen kann. In dieser Arbeit wird eine Methode zur Überprüfung der Qualität des Materials sowie den zusammengesetzten Komponenten von elektronischen Preisschildern beschrieben und mit dem Aufbau eines Prototyps nachgewiesen. Zur Realisierung, um die Durchführung eines Falltests zu ermöglichen, ist ein Prüfgerät konzeptioniert und konstruiert, welches für diese Art Produkt auf dem aktuellen Markt nicht existiert. Der Aufbau dieses Prototyps ist im Detail beschrieben und im Zuge einer Inbetriebnahme auf Funktionalität überprüft. Um den Nachweis der erfolgreichen Umsetzung der Konstruktion zu erbringen, wird der Testlauf einer Hochgeschwindigkeitsaufnahme unterzogen. Die Anforderungen werden vom Hersteller klar definiert und sind in die Arbeit mit eingeflossen.
description: The trend of high quantity production, worldwide availability and the introduction of new “smart” products are steadily increasing. Therefore, manufacturers intend to use quality seals to prevent competitors from developing similar products in time and to extend their own leading position on the market. This requires new testing methods which are reliable and adjustable to the products. For this reason, engineers often develop customized test rigs that comply with the guidelines of manufacturers. The introduction of such methods allows detecting errors directly during the manufacturing process and reduces the potential damage that can result. This thesis examines a method of testing the quality of materials and the assembled components of an electronic device. Furthermore, the composition of a prototype is used to confirm the results of the testing method. A testing device to perform a drop test is designed, which does not exist for this kind of products. The structure of this prototype is described in detail including a thorough documentation of all findings of the start-up. In order to proof the successful implementation of the mechanical design, a test run has been subjected to a high speed recording. The requirements were clearly defined by the manufacturer and have been integrated in this paper.
Management of chronic constipation in adults
Creators: name: Whitehead,
name: Krogh,
name: Chiarioni,
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2017

description: Chronic constipation (CC) is an extremely common condition with an estimated prevalence of up to 24%. Most patients with CC should be treated in primary care. Changes in lifestyle, including increased intake of dietary fibre, fluid, and exercise, should be attempted in most patients. Osmotic or stimulant laxatives are indicated if there are insufficient effects of lifestyle changes. Prokinetics and secretagogues should be restricted to those not responding to basic treatment. Anorectal physiology tests and assessment of colorectal transit time are indicated if medical treatment fails or if symptoms indicate severely obstructed defecation. If symptoms indicate an underlying structural disorder, barium or magnetic resonance evacuation proctography is indicated. Biofeedback therapy is effective in patients with dyssynergic defecation. In patients with other evacuation disorders, rectally administered laxatives or transanal irrigation should be attempted. Surgery is restricted to the minority of CC patients with very severe symptoms not responding to conservative treatment.
Interpretation of Vector-like Quark Searches: Heavy Gluons in Composite Higgs Models
Creators: name: Araque, Juan Pedro
name: Castro, Nuno Filipe
name: Santiago, Jose
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Pair production of new vector-like quarks in pp collisions is considered model independent as it is usually dominated by QCD production. We discuss the interpretation of vector-like quark searches in the case that QCD is not the only relevant production mechanism for the new quarks. In particular we consider the effect of a new massive color octet vector boson with sizeable decay branching ratio into the new quarks. We pay special attention to the sensitivity of the Large Hadron Collider experiments, both in run-1 and early run-2, to differences in the kinematical distributions from the different production mechanisms. We have found that even though there can be significant differences in some kinematical distributions at the parton level, the differences are washed out at the reconstruction level. Thus, the published experimental results can be reinterpreted in models with heavy gluons by simply rescaling the production cross section.
description: 25 pages, 12 figures. Final version matching the published one
L’encouragement à la coéducation dans les milieux éducatifs urbains
Creators: name: Silva, Clara
Publisher: name: Rivista Italiana di Educazione Familiare
Year: 2016

description: In order to respond to the needs of family education in Italy, and especially in the regions of the Centre-North, for what concerns the practices addressed to early childhood, it was recently found an increase of training and educational activities aimed at pedagogically supporting parents in the difficult task of raising and educating their children. The aim of this paper is that one to describe the experiences of some Tuscan ECEC services, where they have been realized projects “for” and “with” parents, sometimes even involving also grandparents. These actions encourage the independence of the parental couple and enhance self-esteem, developing their sense of responsibility and strengthening their ability to think in a reflexive manner: parents meet and share each other their own thoughts and experiences, in order to implement their knowledge, therefore "growing up" together.
description: Rivista Italiana di Educazione Familiare, n° 2 luglio-dicembre 2016