cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
La tragedia de los comunales: legalidad y realidad de los montes comunales en Espana
Creators: name: Diez Del Corral, Ignacio Perez-Soba
name: Sola Martin, Miguel Angel
name: Diez Del Corral, Ignacio Perez-Soba
name: Sola Martin, Miguel Angel
Publisher: name: Unknown
Year: 2004
Subjects: subject: Community/Rural/Urban Development
subject: Land Economics/Use
subject: Montes
subject: bienes comunales
subject: bienes de propios
subject: aprovechamientos forestales
subject: Administracion forestal
subject: Administracion Local
subject: desmortizacion civil
subject: woodlands
subject: common lands
subject: town council's exclusive lands
subject: forest uses
subject: forest service
subject: local administraction
subject: Madoz's "Civil Confiscation Law"

description: El articulo pretende analizar la realidad constatada por autores de la existencia de ina notable diferencia entre lo que establece la legislacion de regimen local sobre el modo de ejercitar los aprovechamientos en los montes comunales y la praxis de muchas entidades locales. Para ello, parte de un sucionto repaso de las diferencias entre montes de propios y monunales, segun la legistlacion vigente, incluyendo el origen historico de esta diferencia, para a continuacion pasar a examinar las causas de la endeble situacion real de los mentes comunales: la falta de inventarios fiables de bienes comunales, la confusion heredada de la desamorticacion civil de Madoz (1855), la falta de actualizacion de la normativa, y el propio interes de los Ayuntamientos. tambien se revisa cual ha de ser el papel de la Administracion Forestal en la defensa del caracter comunal de los aprovechamientos de un monte...The aim of this paper is to analyse the reality noted by the authors concerning the existence of a remarkable difference between the regulations stated by forest and municipal corporations. First, the paper reviews the differences between town council's exclusive woodlands and common woodlands, according to the laws in force, and describes too the historical origin of those differences. Secondly, it examines the actual reasons for the present and weak situation of common woodlands: no reliable inventories for common lands are available; confusion derived from Madoz's "Civil Confiscation Law" (1855); no updates for the applicable legislations; and last but not least, the town councils own interests. Finally, its studied which should be the role of Spanish Forest Service in defending the communal essence of forest uses in common woodlands.
Tumour control probability after Ruthenium-106 brachytherapy for choroidal melanomas
Creators: name: Espensen, Charlotte A.
name: Appelt, Ane L.
name: Fog, Lotte S.
name: Thariat, Juliette
name: Gothelf, Anita B.
name: Aznar, Marianne C.
name: Kiilgaard, Jens F.
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Medicine
subject: Cell Biology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy

description: Purpose: Ruthenium-106 (Ru-106) brachytherapy is a common eye-preserving treatment for choroidal melanomas. However, a dose-response model describing the relationship between the actual delivered tumour dose and tumour control has, to the best of our knowledge, not previously been quantified for Ru-106 brachytherapy; we aimed to rectify this. Material and methods: We considered consecutive patients with primary choroidal melanomas, treated with Ru-106 brachytherapy (2005–2014). Dosimetric plans were retrospectively recreated using 3D image-guided planning software. Pre-treatment fundus photographies were used to contour the tumour; post-treatment photographies to determine the accurate plaque position. Patient and tumour characteristics, treatment details, dose volume histograms, and clinical outcomes were extracted. Median follow-up was 5.0 years. The relationship between tumour dose and risk of local recurrence was examined using multivariate Cox regression modelling, with minimum physical tumour dose (D99%) as primary dose metric. Results: We included 227 patients with median tumour height and largest base dimension of 4 mm (range 1–12, IQR 3–6) and 11 mm (range 4–23, IQR 9–13). The estimated 3 year local control was 82% (95% CI 77–88). Median D99% was 105 Gy (range 6–783, IQR 65–138); this was the most significant factor associated with recurrence (p 99% was 0.87 (95% CI 0.82–0.93). Using biological effective dose in the model resulted in no substantial difference in dose dependence estimates. Robustness cheques with D1–99% showed D99% to be the most significant dose metric for local recurrence. Conclusion: The minimum tumour dose correlated strongly with risk of tumour recurrence, with 100 Gy needed to ensure at least 84% local control at 3 years.
Analisis de la eficiencia tecnica en explotacions ganaderas de vacuno de carne en Espana
Creators: name: Apezteguia, Belen Iraizoz
name: Atance Muniz, Ignacio
name: Apezteguia, Belen Iraizoz
name: Atance Muniz, Ignacio
Publisher: name: Unknown
Year: 2004
Subjects: subject: Livestock Production/Industries
subject: Frontera de produccion
subject: costes
subject: sector vacuno
subject: production frontier
subject: costs
subject: beef sector.

description: En este trabajo, y a partir de la informacion suministrada por la Red Contable Agraria, se ha tratado de produndizar en el conocimiento del sector vacuno de carne en Espana en el ano 1999. Se han estimado funciones de producticcion frontera ya las correspondientes medidas de eficiencia tecnica. Tambien se han calculado los costes de produccion y su participacion en el valor de la produccion. Los resultados obtenidos indican que existe cierto grado de ineficiencia tecnica en el sector. Ademas, la edad del ganagero, el tamano de la explotacion, el nivel de endeudamiento ya la dependencia de las subvenciones, entre otros aspectos, afectan al nivel de ediciencia de las explotaciones. En relacion a los costes pagados por las explotaciones, el componente mas importante es el que incluye los costes especificos ganaderos. Si tenemos en cuenta los costes de oportunidad de los factores propios, los costes de mano de obra pasan a ser los mas cuantiosos. Finalmente, la comparacion entre costes e indica que la mayoria de los ganaderos son capaces de hacer frente a los costes pagados, pero no a los costes totales. Las subvenciones juegan un papel importante, ya que permiten que un porcentaje relevante de explotaciones pueda remunerar los factores utilizados... The aim of this paper is to gain a deeper perspective of the Spanish beef sector in 1999, using data supplied by the Farm Agricultural Data Network. This involves the estimation of frontier productions and the corresponding technical efficiency measures. Production costs and their participation on the production value are also calculated. The results reveal some degree of technical inefficiency in the sector. The factors that are shown to play a role in determining farm efficiency levels are age of farmer, size of farm, amount of debt and dependence on subsidies, among others. The main component in the farm's paid costs is the part that corresponds specifically to stock farming. When the opportunity cost of the farmer's own factors is taken into account, the highest cost becomes labour costs. Finally, the comparison of costs and revenue shows that most farmers are able to handle paid costs, but not total costs. Subsidies play an important role, since they are the means by which large proportion of enterprises manages to pay for the factors used.
Response of buried steel pipelines subjected to longitudinal and transverse ground movement
Creators: name: Karimian, Seyed Abdolhamid
Publisher: name: University of British Columbia
Year: 2010

description: The performance of buried pipeline systems in areas subjected to ground deformations is an important engineering consideration, and there is a need for further research to advance the current fundamental understanding of this problem. A new full-scale physical modeling facility was developed to investigate soil-pipe interaction of relatively large diameter steel pipelines. The facility comprises a large soil box with the capacity to impose axial and lateral displacements on buried pipelines while simulating desired backfill and native soil configurations. Methods were developed to measure normal soil stresses on the pipe surface and observe movement of sand particles during testing. Numerical models, with parameters derived from geotechnical element testing and validated by physical modeling results, were used to conduct parametric studies of pipeline pullout response. The measured axial soil loads on pipes in loose sand were comparable with those from the commonly used ASCE-equation. Pipes in dense sand exhibited axial soil loads several-fold higher than those estimated from the same equation. The increase in normal soil stress on the pipe surface due to constrained dilation of sand in the shear zone was found to be the key reason for these high soil loads. For dilative soils, the equivalent lateral earth pressure coefficient (K) representing average normal stress distribution on the pipe is a more appropriate parameter for use in the ASCE-equation than the "at rest" lateral earth pressure coefficient (K₀). Based on numerical modeling, a series of charts and formulae were developed to obtain the value of K. The commonly used methods of wrapping pipelines with geosynthetic-layers were found to be generally effective in reducing axial soil loads. Measured lateral soil loads were generally lower than those estimated from existing guidelines. The outcomes from physical and numerical modeling were used to develop approaches to account for the effects of geometric, material, and interface parameters on the lateral soil loads. When in hard native soil, pipe buried in sand in a suitably wide trench with adequate horizontal distance from the trench boundary may effectively reduce the lateral soil resistance. In dual-geotextile-lined trench configurations, in addition to interface frictional characteristics, the relative stiffness of the native soil in comparison to the backfill and the ability of the backfill to move as a "cohesive block" become critical in reducing the lateral soil loads.
Designing Functional Polymers and Materials from Lignin-derived Molecules
Creators: name: ROY, PALLABI SINHA
Publisher: name: Monash University
Year: 2024
Subjects: classificationCode: 340503
subject: Organic chemical synthesis
classificationCode: 330314
subject: Sustainable design
classificationCode: 401609
subject: Polymers and plastics

description: In line with the current global efforts towards the utilization of bio-based products, lignin, an abundantly available biopolymer with an aromatic structure similar to petroleum compounds, has tremendous potential. However, the accompanying structural complexity, cost associated with the purification process of the lignin-derived chemicals and the lack of attractive application severely restrict the utilization of this versatile biopolymer. Hence, this Australian Research Council (ARC)-funded project aims to develop high-value functional material from lignin-derived molecules. Light-responsive polymers were designed for specialty applications, such as self-healing materials, photo-switchable adhesives and hydrophobic coating as a replacement for plastic coatings for food packaging applications.
Planar Graphs that Need Four Pages
Creators: name: Yannakakis, Mihalis
Publisher: name: arXiv
Year: 2020
Subjects: subject: Combinatorics (math.CO)
subject: Discrete Mathematics (cs.DM)
subject: Data Structures and Algorithms (cs.DS)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: We show that there are planar graphs that require four pages in any book embedding.
description: To be published in Journal of Combinatorial Theory, Series B
El consumidor ante los alimentos de nueva generacion: alimentos funcionales y alimentos transgenicos
Creators: name: Sanchez, Mercedes
name: Barrena Figueroa, Ramo
name: Sanchez, Mercedes
name: Barrena Figueroa, Ramo
Publisher: name: Unknown
Year: 2004
Subjects: subject: Consumer/Household Economics
subject: Food Consumption/Nutrition/Food Safety
subject: Comportamiento del consumidor
subject: alimentos funcionales
subject: alimentos transgenicos
subject: OGM
subject: segmentacion
subject: beneficios buscados
subject: consumer behaviour
subject: functional food
subject: GMO
subject: segmentation
subject: expected benefits

description: El mercado alimentario esta siendo sometido a profunos cambios en los paises desarollados tanto desde el punto vista de la oferta como de la demanda. El principal objectivo de este trabajo se centra en el analisis del proceso de aceptacion por parte de los consumidores de dos categorias de alimentos basadas en la aplicacion de buevas teenologias en la industria agroalimentaria: los alimentos transgenicos o geneticamente modificados y los nuevos alimentos functionales de diseno. La principal fuente de informacion ha sido ina encuesta personal a adquireentes de alimentos para el hogar residentes en does regiones espanolas, lo que permitira la comparicion de los comportamientos observados entre ambos territorios diferenciados de forma importante en su estructura de habitat y de consumo alimentario. Los resultados indican en primer lugar los principales cambios observados en las actitudes de los consumidores hacia la influencia de la alimentacion en su salud; y en segundo lugar permiten medir el desarrollo potencial de estos mercados-alimentos transgenicos y functionales-basados en el riesgo en los beneficios buscados, estableciendo patrones de consumidores mediante analisis de segmentacion y modelos logit. Las actitudes personales de los consumidores y el habitat de residencia seran las caracteristicas que mas diferencien entre los segmentos obtenidos...Food markets have been subjected to important changes in developing countries both in terms of products demand and supply. The main objective of this paper is to analyse the consumers reaction to two new food categories which have been recently introduced into the market functional and genetically modified or transgenic products. The information for the study derives from inquires addressed to resident persons responsible for home food supply in two quite distinct Spanish regions: Madrid and Navarra, in order to compare the situation between two markets well differentiated in habitat and food consumption. Results showed the main changes taken place in consumers attitude concerning the influence of food on health as well as a measure of the potential development of the functional and GMO-based markets in relation to risk perception and expected benefits, using segmentation analysis and logit models. The personal attitudes of consumers and their residence habitat were the main factors influencing the differentiation of the markets.
HST-STIS Spatially Resolved Spectroscopy and Coronagraphic Imaging of the TW Hydrae Circumstellar Disk
Creators: name: Roberge, Aki
name: Weinberger, Alycia J.
name: Malumuth, Eliot M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the first spatially resolved spectrum of scattered light from the TW Hydrae protoplanetary disk. This nearly face-on disk is optically thick, surrounding a classical T Tauri star in the nearby 10 Myr old TW Hya association. The spectrum was taken with the HST-STIS CCD, providing resolution R ~ 360 over the wavelength range 5250 - 10300 A. Spatially resolved spectroscopy of circumstellar disks is difficult due to the high contrast ratio between the bright star and faint disk. Our novel observations provide optical spectra of scattered light from the disk between 40 AU and 155 AU from the star. The scattered light has the same color as the star (gray scattering) at all radii, except the innermost region. This likely indicates that the scattering dust grains are larger than about 1 micron all the way out to large radii. From the spectroscopic data, we also obtained radial profiles of the integrated disk brightness at two position angles, over almost the same region as previously observed in HST-WFPC2 and NICMOS coronagraphic images (35 AU to 173 AU from the star). The profiles have the same shape as the earlier ones, but show a small azimuthal asymmetry in the disk not previously noted. Our STIS broad-band coronagraphic images of TW Hya confirm the reality of this asymmetry, and show that the disk surface brightness interior to 140 AU has a sinusoidal dependence on azimuthal angle. The maximum brightness occurs at a position angle of 233.6 +/- 5.7 degrees East of North. This might be caused by the combination of forward-scattering and an increase in inclination in the inner region of the disk, suggesting that the TW Hya disk has a warp like that seen in the Beta Pictoris debris disk.
description: 18 pages, 9 figures (some in color). First version submitted to ApJ 2004-08-29, posted to astro-ph 2004-10-10. Revised version accepted for publication in ApJ 2004-12-07, posted to astro-ph 2004-12-08
Gondwanan fragments in the Southern Appalachians
Creators: name: A.J. Dennis
name: B.V. Miller
name: J.P. Hibbard
name: E. Tappa
name: R.C. Thunell
Publisher: name: Geological Society of London
Year: 2020
Subjects: subject: Geology
subject: FOS: Earth and related environmental sciences

description: The full detrital U-Pb zircon analytical dataset, C and Srâ€“isotope data, as well as sample locations, and additional figures.
Novel biomarkers for intestinal fibrosis and cell therapies for perianal fistulas in Crohn’s disease
Creators: name: KEUNG, CHARLOTTE YUEN YU
Publisher: name: Monash University
Year: 2024
Subjects: classificationCode: 320606
subject: Regenerative medicine (incl. stem cells)
classificationCode: 510203
subject: Nonlinear optics and spectroscopy

description: This thesis identifies new markers for assessing inflammation and scarring in Crohn’s disease, an incurable inflammatory condition of the bowel. This was performed using a technique called biospectroscopy, which gathers biochemical information about the intestinal tissue. This thesis also develops a new stem cell treatment for perianal fistulas in Crohn’s disease using a stem-like cell from the placenta termed human amnion epithelial cells. This thesis includes the first human study using these cells in Crohn’s disease, which were injected into patients and showed that the treatment was safe and well tolerated, with promising results for healing perianal fistulas.
Quadratic integrals of motion for the systems of identical particles
Creators: name: Brihaye, Y.
name: Gonera, C.
name: Kosinski, P.
name: Maslanka, P.
name: Giller, S.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: The dynamical systems of identical particles admitting quadratic integrals of motion are classified. The relevant integrals are explicitly constructed and their relation to separation of variables in H-J equation is clarified.
description: 6 pages, no figures
Vocal cord dysfunction/inducible laryngeal obstruction: alternative and novel diagnostic and treatment pathways
Creators: name: KOH, JOO HOE
Publisher: name: Monash University
Year: 2024
Subjects: classificationCode: 320103
subject: Respiratory diseases
classificationCode: 320217
subject: Otorhinolaryngology

description: Vocal cord dysfunction (VCD) is increasingly recognised as a frequently missed diagnosis. This has hampered progress in disease understanding and treatment development.

We hypothesised that novel diagnostic and treatment pathways can improve care for people with VCD. The aims were to explore dynamic computed tomography larynx as an alternative diagnostic modality, and to review current clinical management practices.

My research provides novel data for CT larynx as an alternative diagnostic test. My research also validated simple effective modifications for the MDT model of care. My randomized controlled trial, though unsuccessful, provided valuable lessons to guide future directions in research.
Plastic hinge length in high-rise concrete shear walls
Creators: name: Bohl, Alfredo Guillermo
Publisher: name: University of British Columbia
Year: 2011

description: The flexural displacement capacity of a concrete shear wall depends on the length of the plastic hinge. Typical building codes and several researchers recommend the use of an equivalent plastic hinge length at the base equal to half the wall length. However, the plastic hinge length is also influenced by parameters other than the wall length. There are currently no recommendations on what should be the plastic hinge length for parallel walls of different lengths in a high-rise building. A parametric study was conducted to investigate the parameters that affect the length of the plastic hinge in concrete walls. The walls were analyzed using program VecTor2. The analytical model was validated with tests results performed on wall specimens. The results obtained show that the inelastic curvatures vary linearly over the plastic hinge length. The shape of the strain profile in slender walls after cracking depends on the amount of reinforcement. Longer walls have larger plastic hinge lengths than shorter walls. Compressive axial loads reduce the plastic hinge length, tensile axial loads have the opposite effect. A simple shear model was proposed to estimate the increase in plastic hinge length when the shear stresses are high. Walls of different lengths interconnected by rigid slabs at various levels have different curvature distributions and plastic hinge lengths. The curvatures in the longer wall do not change whether it is alone or combined with a wall of shorter length. The shorter length wall is subjected to larger curvatures at the base when it is combined. A simple model was proposed to predict the maximum curvature in the shorter wall.
title: 's Teschtament
Creators: name: Greber, Julius
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2022

description: TEI version for play in Alsatian. Play subtitle: Volksstück in drei Aufzügen von Julius Greber
description: TEI version for 's Teschtament by Julius Greber
Quantum catastrophes from an algebraic perspective
Creators: name: Leviatan, A.
name: Gavrielov, N.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Nuclear Theory (nucl-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the properties of quantum cusp and butterfly catastrophes from an algebraic viewpoint. The analysis employs an interacting boson model Hamiltonian describing quantum phase transitions between specific quadrupole shapes by interpolating between two incompatible dynamical symmetry limits. The classical properties are determined by using coherent states to construct the complete phase diagrams associated with Landau potentials exhibiting such catastrophes.The quantum properties are determined by analyzing the spectra, transition rates and symmetry character of the eigenstates of critical Hamiltonians.
description: 14 pages, 11 figures, talk at Symposium "Symmetries in Science XVIII", August 4-9, 2019, Bregenz, Austria
Canpolat Şahin, M. Kolukısa, A. 2025. A Multi-perspective Review on Embedded Systems Quality: State of the Field, Challenges, and Research Directions. Journal of Software: Evolution and Process.
Creators: name: Canpolat Şahin, Müge
Publisher: name: Zenodo
Year: 2024

description: Data extraction matrix for the paper "A Multi-perspective Review on Embedded Systems Quality: State of the Field, Challenges and Research Directions"
The Potential Use Of Mangrove-Derived Streptomyces sp. As Probiotics Against Vibrio Parahaemolyticus Infection In Aquaculture Farming
Creators: name: GOH, JOANNA XUAN HUI
Publisher: name: Monash University
Year: 2024
Subjects: classificationCode: 300503
subject: Fish pests and diseases
classificationCode: 300606
subject: Food sustainability
classificationCode: 310505
subject: Gene expression (incl. microarray and other genome-wide approaches)
classificationCode: 300911
subject: Veterinary pharmacology
classificationCode: 310799
subject: Microbiology not elsewhere classified
classificationCode: 300501
subject: Aquaculture
classificationCode: 300304
subject: Animal protection (incl. pests and pathogens)
classificationCode: 321405
subject: Pharmaceutical sciences

description: This thesis aims to explore a sustainable alternative to antibiotics in controlling bacterial infections in aquaculture. In particular, it investigates the potential of introducing mangrove-derived Streptomyces sp. as probiotics to control Vibrio sp. infections. It characterizes five Streptomyces isolates and identifies Streptomyces sp. MUM 195J as a promising probiotic strain that demonstrates a strong inhibitory effect against Vibrio parahaemolyticus. In-vitro tests show that supplementation with Streptomyces sp. MUM 195J significantly increases the survival rate of Macrobrachium rosenbergii, enhances their growth, elevates their immune function, and improves the water quality. This finding contributes to the mitigation of antimicrobial resistance and the promotion of global food security.
Fantastic flat bands and where to find them: The CoSn-type compounds
Creators: name: Meier, William R.
name: Du, Mao-Hua
name: Okamoto, Satoshi
name: Mohanta, Narayan
name: May, Andrew F.
name: McGuire, Michael A.
name: Bridges, Craig A.
name: Samolyuk, German D.
name: Sales, Brian C.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Quantum interference on the kagome lattice generates electronic bands with narrow bandwidth, called flat bands. Crystal structures incorporating this lattice can host strong electron correlations with non-standard ingredients, but only if these bands lie at the Fermi level. In the six compounds with the CoSn structure type (FeGe, FeSn, CoSn, NiIn, RhPb, and PtTl) the transition metals form a kagome lattice. The two iron variants are robust antiferromagnets so we focus on the latter four and investigate their thermodynamic and transport properties. We consider these results and calculated band structures to locate and characterize the flat bands in these materials. We propose that CoSn and RhPb deserve the community's attention for exploring flat band physics.
description: 12pg 11fig
Study of the Bipolar Nebula IRAS 19312+1950. II. Circumstellar Chemistry
Creators: name: Deguchi, S.
name: Nakashima, J.
name: Takano, S.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The bipolar nebula, IRAS 19312+1950, is a unique SiO maser source exhibiting both properties as young and evolved objects. To clarify the nature of this object, we made molecular line observations with the Nobeyama 45-m radio telescope. We detected emission from O-bearing (HCO^+, SiO, SO, and SO_2), C- and N-bearing molecules (CN, CS, HCN, HNC, NH_3, N_2H^+, HC_3N, H_2CS, and CH_3OH), and their isotopic species (C^17O, ^13C^18O, and C^34S). Line profiles consist of a weak broad (Dv 30 km/s) and/or a strong narrow (DV< 5 km/s) components, depending on molecular species. Strong time variations of H_2O and SiO masers were also observed. Numerical modeling of the envelope with the LVG-code results in a good fit of the model with a mass loss rate of 2.6 10^-4 M_sun/yr to the observed intensities for the broad-component lines. On the other hand, non-O-bearing molecules, which have only the narrow profiles, were found to have abundances typical to those in cool dust clouds. No isotopic enrichment was found, indicating little evidence of the narrow cool component being an ejecta of the central AGB star or a possible companion. These facts compelled us to conclude that IRAS 19312+1950 is an exotic mass-losing evolved star embedded in a low-mass (~20 M_sun) dark cloud.
description: 13 pages, 7 figures, high res. figure available at http://www.nro.nao.ac.jp/library/report/list.html (No. 614). PASJ Dec. 25 issue in press
Defective beams in MEMS: a model of non-ideal rods using a Cosserat approach for component level modelling
Creators: name: Gould, Tim
name: Wang, Charles
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We present and derive a technique for the introduction of defects into a beam model based on the Cosserat theory of rods. The technique is designed for the derivation of component models of non-ideal rods for use in MEMS devices. We also present a worked through example of blob/nick defects (where the rod has an area with an excess/lack of material) and a guide for a model with random pits and blobs along the length of the beam. Finally we present a component level model of a beam with a defect and compare it to results from a Finite Element Analysis simulation. We test the Cosserat model for two cases without any defect and four with a defect. Results are in good agreement with a maximum 0.5% difference for the ideal case and under 1% differences for all but one of the defective cases, the exception being a 2% error in an extreme case for which the model is expected to break down. Overall, the Cosserat model with and without defects provides an accurate way of modelling long slender beams. In addition, simulation times are greatly reduced through this approach and further development for both component level models as well as as FEA components is important for practical yet accurate modelling of MEMS both for prediction and comparison.
description: 9 pages, submitted paper
CAAI -- A Cognitive Architecture to Introduce Artificial Intelligence in Cyber-Physical Production Systems
Creators: name: Fischbach, Andreas
name: Strohschein, Jan
name: Bunte, Andreas
name: Stork, Jörg
name: Faeskorn-Woyke, Heide
name: Moriz, Natalia
name: Bartz-Beielstein, Thomas
Publisher: name: arXiv
Year: 2020
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: This paper introduces CAAI, a novel cognitive architecture for artificial intelligence in cyber-physical production systems. The goal of the architecture is to reduce the implementation effort for the usage of artificial intelligence algorithms. The core of the CAAI is a cognitive module that processes declarative goals of the user, selects suitable models and algorithms, and creates a configuration for the execution of a processing pipeline on a big data platform. Constant observation and evaluation against performance criteria assess the performance of pipelines for many and varying use cases. Based on these evaluations, the pipelines are automatically adapted if necessary. The modular design with well-defined interfaces enables the reusability and extensibility of pipeline components. A big data platform implements this modular design supported by technologies such as Docker, Kubernetes, and Kafka for virtualization and orchestration of the individual components and their communication. The implementation of the architecture is evaluated using a real-world use case.
Fitting Type Ia supernovae with coupled dark energy
Creators: name: Amendola, Luca
name: Gasperini, Maurizio
name: Piazza, Federico
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We discuss the possible consistency of the recently discovered Type Ia supernovae at z>1 with models in which dark energy is strongly coupled to a significant fraction of dark matter, and in which an (asymptotic) accelerated phase exists where dark matter and dark energy scale in the same way. Such a coupling has been suggested for a possible solution of the coincidence problem, and is also motivated by string cosmology models of "late time" dilaton interactions. Our analysis shows that, for coupled dark energy models, the recent data are still consistent with acceleration starting as early as at $z=3$ (to within 90% c.l.), although at the price of a large "non-universality" of the dark energy coupling to different matter fields. Also, as opposed to uncoupled models which seem to prefer a ``phantom'' dark energy, we find that a large amount of coupled dark matter is compatible with present data only if the dark energy field has a conventional equation of state w>-1.
description: 13 pages, 6 figures. Final version, accepted for publication in JCAP
O'QITUVCHINING KASBIY SHAXSIYATI VA ZAMONAVIY TA'LIM TALABLARIGA MOSLASHUVI
Creators: name: Mirzaeva, Mavluda
Publisher: name: Zenodo
Year: 2025

description: Ushbu maqolada o‘qituvchilarning kasbiy shaxsi tushunchasi, uning shakllanishi va unga ta’sir etuvchi psixologik, pedagogik va ijtimoiy omillar o‘rganiladi. Bundan tashqari, u o‘qituvchilarning zamonaviy ta’lim talablariga, jumladan, texnologik yutuqlarga, o‘quvchilarga yo‘naltirilgan yondashuvlarga va kompetentsiyaga asoslangan ta’lim modellariga qanday moslashishini o‘rganadi. Tadqiqot o‘qituvchilarning charchashi, kasbiy rivojlanish ehtiyojlari va o‘zgarishlarga qarshilik kabi asosiy muammolarni ta’kidlaydi. Maqolada empirik tadqiqotlar va nazariy istiqbollarga tayangan holda kuchli kasbiy identifikatsiyani shakllantirish va o‘qituvchilarning zamonaviy ta’limga moslashish qobiliyatini oshirish bo‘yicha tavsiyalar berilgan.
Non-commutative low dimension spaces and superspaces associated with contracted quantum groups and supergroups
Creators: name: Gromov, N. A.
name: Efimov, D. B.
name: Kostyakov, I. V.
name: Kuratov, V. V.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Algebra (math.QA)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: Quantum planes which correspond to all one parameter solutions of QYBE for the two-dimensional case of GL-groups are summarized and their geometrical interpretations are given. It is shown that the quantum dual plane is associated with an exotic solution of QYBE and the well-known quantum $h$-plane may be regarded as the quantum analog of the flag (or fiber) plane. Contractions of the quantum supergroup $ GL_q(1|2)$ and corresponding quantum superspace $ C_q(1|2)$ are considered in Cartesian basis. The contracted quantum superspace $ C_h(1|2;ι)$ is interpreted as the non-commutative analog of the superspace with the fiber odd part.
description: Talk given at the XIII Int. Coll. on Integrable Systems and Quantum Groups, June 17-19, 2004, Prague, Czech Republic. Submitted in Czech. J. of Physics
A highly sensitive piezoresistive sensor based on MXene and polyvinyl butyral with a wide detection limit and low power consumption
Creators: name: Qin, Ruzhan
name: Hu, Mingjun
name: Li, Xin
name: Yan, Li
name: Wu, Chuanguang
name: Liu, Jinzhang
name: Gao, Haibin
name: Shan, Guangcun
name: Huang, Wei
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applied Physics (physics.app-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: As a new class of two-dimensional transition-metal carbide and carbonitride, MXene have been widely used in the energy storage, sensor, catalysis, electromagnetic interference shielding and other field. It is a challenge to simultaneously realize a sensor of extremely high sensitivity, wide detection limits, low power consumption and good mechanical stability. In this work, taking advantage of high conductivity of MXene and porous structure of polyvinyl butyral, a highly sensitive piezoresistive sensor was fabricated. The fabricated MXene/PVB-based sensor exhibits highly sensitive reliably with a factor of ~11.9 kPa^-1, ~1.15 kPa^-1 and ~0.20 kPa^-1 in the ranges of 31.2 Pa-312 Pa, 312 Pa- 62.4 kPa and 62.4 kPa-1248.4 kPa, respectively. The sensor has a wide detection range (~31.2 Pa to ~2.205 MPa), low detection limit (6.8 Pa), low detection voltage (0.1 mV), low power consumption (~3.6 * 10^-10 W), fast response time ( ~110 ms), as well as good mechanical stability (over 10,000 maximum-pressure cycles). Moreover, it is demonstrated that the sensor can detect subtle bending and release activities of human, including arterial pulses and voice signal, which is potentially suitable as a wide detection range, highly sensitive and low power consumption piezoresistive sensor. This work provides a new avenue to expand the application of MXene-based flexible pressure sensor in the field of wide sensing range and ultra-low power consumption.
description: Nanoscale 2020
State densities of heavy nuclei in the static-path plus random-phase approximation
Creators: name: Fanto, P.
name: Alhassid, Y.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Nuclear Theory (nucl-th)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Nuclear state densities are important inputs to statistical models of compound-nucleus reactions. State densities are often calculated with self-consistent mean-field approximations that do not include important correlations and have to be augmented with empirical collective enhancement factors. Here, we benchmark the static-path plus random-phase approximation (SPA+RPA) to the state density in a chain of samarium isotopes $^{148-155}$Sm against exact results (up to statistical errors) obtained with the shell model Monte Carlo (SMMC) method. The SPA+RPA method incorporates all static fluctuations beyond the mean field together with small-amplitude quantal fluctuations around each static fluctuation. Using a pairing plus quadrupole interaction, we show that the SPA+RPA state densities agree well with the exact SMMC densities for both the even- and odd-mass isotopes. For the even-mass isotopes, we also compare our results with mean-field state densities calculated with the finite-temperature Hartree-Fock-Bogoliubov (HFB) approximation. We find that the SPA+RPA repairs the deficiencies of the mean-field approximation associated with broken rotational symmetry in deformed nuclei and the violation of particle-number conservation in the pairing condensate. In particular, in deformed nuclei the SPA+RPA reproduces the rotational enhancement of the state density relative to the mean-field state density.
description: 13 pages, 5 figures, 3 tables
Model for Entangled States with Spin-Spin Interaction
Creators: name: Aharonov, Yakir
name: Anandan, Jeeva
name: Maclay, G. Jordan
name: Suzuki, Jun
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A system consisting of two neutral spin 1/2 particles is analyzed for two magnetic field perturbations: 1) an inhomogeneous magnetic field over all space, and 2) external fields over a half space containing only one of the particles. The field is chosen to point from one particle to the other, which results in essentially a one-dimensional problem. A number of interesting features are revealed for the first case: the singlet, which has zero potential energy in the unperturbed case, remains unstable in the perturbing field. The spin zero component of the triplet evolves into a bound state with a double well potential, with the possibility of tunneling. Superposition states can be constructed which oscillate between entangled and unentangled states. For the second case, we show that changes in the magnetic field around one particle affect measurements of the spin of the entangled particle not in the magnetic field nonlocally. By using protective measurements, we show it is possible in principle to establish a nonlocal interaction using the two particles, provided the dipole-dipole potential energy does not vanish and is comparable to the potential energy of the particle in the external field.
Self-avoiding walks and trails on the 3.12 lattice
Creators: name: Guttmann, Anthony J.
name: Parviainen, Robert
name: Rechnitzer, Andrew
Publisher: name: arXiv
Year: 2004
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We find the generating function of self-avoiding walks and trails on a semi-regular lattice called the $3.12^2$ lattice in terms of the generating functions of simple graphs, such as self-avoiding walks, polygons and tadpole graphs on the hexagonal lattice. Since the growth constant for these graphs is known on the hexagonal lattice we can find the growth constant for both walks and trails on the $3.12^2$ lattice. A result of Watson then allows us to find the generating function and growth constant of neighbour-avoiding walks on the covering lattice of the $3.12^2$ lattice which is tetra-valent. A mapping into walks on the covering lattice allows us to obtain improved bounds on the growth constant for a range of lattices.
description: 15 pages, 8 figures
The lens and source of the optical Einstein ring gravitational lens ER 0047-2808
Creators: name: Wayth, Randall B.
name: Warren, Stephen J.
name: Lewis, Geraint F.
name: Hewett, Paul C.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: (Abridged) We perform a detailed analysis of the optical gravitational lens ER 0047-2808 imaged with WFPC2 on the Hubble Space Telescope. Using software specifically designed for the analysis of resolved gravitational lens systems, we focus on how the image alone can constrain the mass distribution in the lens galaxy. We find the data are of sufficient quality to strongly constrain the lens model with no a priori assumptions about the source. Using a variety of mass models, we find statistically acceptable results for elliptical isothermal-like models with an Einstein radius of 1.17''. An elliptical power-law model (Sigma \propto R^-beta) for the surface mass density favours a slope slightly steeper than isothermal with beta = 1.08 +/- 0.03. Other models including a constant M/L, pure NFW halo and (surprisingly) an isothermal sphere with external shear are ruled out by the data. We find the galaxy light profile can only be fit with a Sersic plus point source model. The resulting total M/L_B contained within the images is 4.7 h_65 +/-0.3. In addition, we find the luminous matter is aligned with the total mass distribution within a few degrees. The source, reconstructed by the software, is revealed to have two bright regions, with an unresolved component inside the caustic and a resolved component straddling a fold caustic. The angular size of the entire source is approx. 0.1'' and its (unlensed) Lyman-alpha flux is 3 x 10^-17 erg/s/cm^2.
description: 13 pages, 5 figures. Revised version accepted for publication in MNRAS
The History of the Origin and Growth of the Multnomah County Hospital
Creators: name: Smith, Courtney M.
Publisher: name: Unknown
Year: 1933
Subjects: Josephi, Simeon Edward
Smith, Andrew C.
Bevan, Arthur Dean, 1861-1943
Bettman, Adalbert G., 1883-1964
Hospital Administration
History, 19th Century
History, 20th Century
Hospitals
Hospital Planning
Oregon--Portland

description: Courtney M. Smith read this text before the Medical History Club of the University of Oregon Medical School on March 30, 1933. This marked the 65th anniversary of the vote to fund a “Pauper’s Farm,” a place where those who required medical and other additional support could be taken care of. This place would eventually become the Multnomah County Hospital, followed by construction of a new facility decades later on Marquam Hill. Smith goes through some of the more notable points in the hospital’s history, including a scandal in 1870 with a former inmate and the then-keeper of the farm, as well as stories of some of the healthcare professionals who worked there.
Shock Wave Structure for Argon, Helium, and Nitrogen
Creators: name: Elizarova, T. G.
name: Shirokov, I. A.
name: Montero, S.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We compare the thickness of shock wave fronts at different Mach numbers, modeled via Navier-Stokes (NS) and Quasi-gasdynamic (QGD) equations, with experimental results from the literature. Monoatomic argon and helium, and diatomic nitrogen, are considered. In this modeling a finite-difference scheme with second-order spatial accuracy is employed. For argon the density thickness calculated via QGD and NS models are in good agreement with each other, and with the experimental results. For helium QGD and NS results agree well with those from the bimodal model. For nitrogen, the QGD results are closer to the experimental data than NS results. The QGD-based algorithm converges to the steady state solution faster than the NS-based one.
description: 6 pages, 6 figures
Synchrotron radiation in Myers-Pospelov effective electrodynamics
Creators: name: Montemayor, R.
name: Urrutia, Luis F.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In the framework of the classical effective Lorentz invariance violating (LIV) model of Myers-Pospelov, we present a complete calculation of the synchrotron radiation produced by a circularly moving charge in the rest frame of the model. Within the full far-field approximation we compute exact expressions for the electric and magnetic fields, the angular distribution of the power spectrum and the total emitted power in the m-th harmonic. We also perform an expansion of the latter quantity in terms of the electromagnetic LIV parameter and calculate the average degree of circular polarization to first order in such a parameter. In both cases we find, under adequate circumstances, the appearance of rather unexpected and large amplifying factors, which go together with the otherwise negligible naive expansion parameter. This opens up the possibility of selecting astrophysical sources where these amplifying factors are important, to explore further constraints imposed upon the LIV parameters by synchrotron radiation measurements.
description: 9 pages
Hard antinodal gap revealed by quantum oscillations in the pseudogap regime of underdoped high-$T_{\rm c}$ superconductors
Creators: name: Hartstein, Mate
name: Hsu, Yu-Te
name: Modic, Kimberly A.
name: Porras, Juan
name: Loew, Toshinao
name: Tacon, Matthieu Le
name: Zuo, Huakun
name: Wang, Jinhua
name: Zhu, Zengwei
name: Chan, Mun K.
name: McDonald, Ross D.
name: Lonzarich, Gilbert G.
name: Keimer, Bernhard
name: Sebastian, Suchitra E.
name: Harrison, Neil
Publisher: name: arXiv
Year: 2020
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: An understanding of the missing antinodal electronic excitations in the pseudogap state is essential for uncovering the physics of the underdoped cuprate high temperature superconductors. The majority of high temperature experiments performed thus far, however, have been unable to discern whether the antinodal states are rendered unobservable due to their damping, or whether they vanish due to their gapping. Here we distinguish between these two scenarios by using quantum oscillations to examine whether the small Fermi surface pocket, found to occupy only 2% of the Brillouin zone in the underdoped cuprates, exists in isolation against a majority of completely gapped density of states spanning the antinodes, or whether it is thermodynamically coupled to a background of ungapped antinodal states. We find that quantum oscillations associated with the small Fermi surface pocket exhibit a signature sawtooth waveform characteristic of an isolated two-dimensional Fermi surface pocket. This finding reveals that the antinodal states are destroyed by a hard gap that extends over the majority of the Brillouin zone, placing strong constraints on a drastic underlying origin of quasiparticle disappearance over almost the entire Brillouin zone in the pseudogap regime.