cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Force transmission and the order parameter of shear thickening
Creators: name: Mari, Romain
name: Seto, Ryohei
Publisher: name: arXiv
Year: 2019
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The origin of the abrupt shear thickening observed in some dense suspensions has been recently argued to be a transition from frictionless (lubricated) to frictional interactions between immersed particles. The Wyart-Cates rheological model, built on this scenario, introduced the concept of fraction of frictional contacts $f$ as the relevant order parameter for the shear thickening transition. Central to the model is the "equation-of-state" relating $f$ to the applied stress $σ$, which is directly linked to the distribution of the normal components of non-hydrodynamics interparticle forces. Here, we develop a model for this force distribution, based on the so-called $q$-model that we borrow from granular physics. This model explains the known $f(σ)$ in the simple case of sphere contacts displaying only sliding friction, but also predicts strong deviation from this "usual" form when stronger kinds of constraints are applied on relative motion. We verify these predictions in the case of contacts with rolling friction, in particular a broadening of the stress range over which shear thickening occurs. We finally discuss how a similar approach can be followed to predict $f(σ)$ in systems with other variations from the canonical system of monodisperse spheres with sliding friction, in particular the case of large bidispersity.
description: 11 pages, 10 figures
Aproximación bibliométrica a la Revista de Comunicación (Perú), 2002-2019
Creators: name: Estrada-Cuzcano, Alonso
name: Alhuay-Quispe, Joel
Publisher: name: figshare
Year: 2021
Subjects: subject: 80705 Informetrics
subject: FOS: Media and communications

description: El estudio presenta un análisis de visibilidad e impacto científico de los artículos aplicados por la Revista de Comunicación entre 2002 a 2019. Los métodos y técnicas empleados son de enfoque bibliométrico a nivel de autor (Lotka, índice de colaboración), artículo (co-ocurrencia) y revista (h-index, citas). Se emplean las fuentes de datos de citas Scopus, Web of Science y Google Scholar, y dos herramientas de análisis: Publish or Perish y VOSviewer. Los resultados encontrados muestran un desempeño óptimo de la Revista de Comunicación que evidencia su posicionamiento como una de las mejores publicaciones seriadas indizadas de América Latina y España que integra un selecto segmento de revistas de comunicación.
Common labelling and producer organisations: a transaction cost economics approach
Creators: name: Raynaud, Emmanuel
name: Sauvee, Loïc
name: Raynaud, Emmanuel
name: Sauvee, Loïc
Publisher: name: Unknown
Year: 1999
Subjects: subject: Agribusiness
subject: Industrial Organization
subject: common labelling
subject: contractual hazards
subject: mechanisms of governance
subject: hybrid forms
subject: quality

description: In agricultural and food sectors, actors frequently develop collective quality signs. The objective of this article is to propose an analytical framework of collective quality signs seen as specific asset which property is shared. Using the transaction-cost economics approach, we study the determinants of organisational choices of producers using common quality signs. We put in evidence the importance of contractual hazards in the choice of governance structures. Then we study the various mechanisms that constitute the governance of common quality signs.
Bound state-continuum resonance transition in a shallow quantum well
Creators: name: Huang, Yi
name: Sarma, Sankar Das
Publisher: name: arXiv
Year: 2024
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We show a transition from a bound state to a continuum resonance in a shallow quantum well (QW) by electrostatic gating to bend the conduction band edge. This bound state-continuum resonance (BSCR) transition is particularly relevant in topological quantum computing platforms where shallow InAs QWs are used. We predict the observed capacitance jump and the parallel metal-insulator transition accompanied the BSCR transition. An experimental puzzle in shallow InAs QWs is the mobility drop at an electron density smaller than expected for the bound-state second subband occupation. We explain this puzzle as a result of intersubband scattering involving a level-broadened continuum resonance, mediated by screened Coulomb impurities.
description: Main text: 5 pages, 3 figures, 1 table. Supplemental materials: 6 pages, 3 figures, 2 tables
Determinants of the perception of quality for a typical production: the case of Buffalo Mozzarella Campana cheese
Creators: name: Rinaldi, Agnese
name: Rinaldi, Agnese
Publisher: name: Unknown
Year: 1999
Subjects: subject: Agribusiness
subject: Consumer/Household Economics
subject: Marketing
subject: FOS: Economics and business
subject: quality
subject: typical product
subject: Buffalo Mozzarella Cheese

description: Consumers attach value to place of origin when purchase food. Although effects of a geographical indication have been found, it is necessary a deeper analysis to clarify how determinants of the image of a geographical area influence the perception and the preference of products. The purpose of this study is to identify what are the factors influencing the choice and the evaluation by consumers of a typical products made in Campania : the Buffalo Mozzarella Cheese, and their importance on the buying decision. The knowledge of these factors by food producers can represent a useful tool for the development of marketing strategies and for seeking competitive advantage.
Untitled Item
Creators: name: Estrada-Cuzcano, Alonso
name: Alhuay-Quispe, Joel
Publisher: name: figshare
Year: 2021
Subjects: subject: 80705 Informetrics
subject: FOS: Media and communications

description: El estudio presenta un análisis de visibilidad e impacto científico de los artículos aplicados por la Revista de Comunicación entre 2002 a 2019. Los métodos y técnicas empleados son de enfoque bibliométrico a nivel de autor (Lotka, índice de colaboración), artículo (co-ocurrencia) y revista (h-index, citas). Se emplean las fuentes de datos de citas Scopus, Web of Science y Google Scholar, y dos herramientas de análisis: Publish or Perish y VOSviewer. Los resultados encontrados muestran un desempeño óptimo de la Revista de Comunicación que evidencia su posicionamiento como una de las mejores publicaciones seriadas indizadas de América Latina y España que integra un selecto segmento de revistas de comunicación.
Realization of a high power optical trapping setup free from thermal lensing effects
Creators: name: Simonelli, Cristiano
name: Neri, Elettra
name: Ciamei, Alessio
name: Goti, Irene
name: Inguscio, Massimo
name: Trenkwalder, Andreas
name: Zaccanti, Matteo
Publisher: name: arXiv
Year: 2019
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Atomic Physics (physics.atom-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Transmission of high power laser beams through partially absorbing materials modifies the light propagation via a thermally-induced effect known as thermal lensing. This may cause changes in the beam waist position and degrade the beam quality. Here we characterize the effect of thermal lensing associated with the different elements typically employed in an optical trapping setup for cold atoms experiments. We find that the only relevant thermal lens is represented by the $TeO_2$ crystal of the acousto-optic modulator exploited to adjust the laser power on the atomic sample. We then devise a simple and totally passive scheme that enables to realize an inexpensive optical trapping apparatus essentially free from thermal lensing effects.
Regular F -manifolds with eventual identities
Creators: name: Perletti, Sara
name: Strachan, Ian A. B.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Differential Geometry (math.DG)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 53D45

description: Given an F-manifold one may construct a dual multiplication (generalizing the idea of an almost-dual Frobenius manifold introduced by Dubrovin) using a so-called eventual identity, the definition of which ensure that the dual object is also an F-manifold. In this paper we solve the equations for an eventual identity for a regular (so non-semi-simple) F-manifold and construct a dual coordinate system in which dual multiplication is preserved. As an application, families of Nijenhuis operators are constructed.
description: 24 pages
Strong resolution of singularities in characteristic zero
Creators: name: Encinas, S.
name: Hauser, H.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14E15, 14B05, 32S05, 32S10, 32S45

description: We present a concise proof for the existence and construction of a {\it strong resolution of excellent schemes} of finite type over a field of characteristic zero. Our proof is based on earlier work of Villamayor, Encinas-Villamayor and Bierstone-Milman. It apports some substantial simplifications which may be helpful for a better understanding of how to prove Hironaka's famous theorem.
description: plain tex file. 20 pages
OS MENIRES DO COMPLEXO MEGALÍTICO DE REGO DA MURTA (ALVAIÁZERE, LEIRIA): RESULTADOS DAS INTERVENÇÕES DO MENIR I E II DE REGO DA MURTA
Creators: name: Figueiredo, Alexandra
Publisher: name: Zenodo
Year: 2013

description:  Figueiredo, A. (2013) – OS MENIRES DO COMPLEXO MEGALÍTICO DE REGO DA MURTA (ALVAIÁZERE, LEIRIA): RESULTADOS DAS INTERVENÇÕES DO MENIR I E II DE REGO DA MURTA. Revista Antrope, nº 0, Dezembro de 2013, Registo Centro Nacional ISSN: 2183-1386, editada pelo Centro de Pré-História do Instituto Politécnico de Tomar. http://www.cph.ipt.pt/download/AntropeDownload/ANTROPE%200/revista_antrope_N0.pdf Pp213-225
Measuring the broadband power spectra of active galactic nuclei with RXTE
Creators: name: Uttley, P.
name: McHardy, I. M.
name: Papadakis, I. E.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have developed a Monte Carlo technique to test models for the true power spectra of intermittently sampled lightcurves against the noisy, observed power spectra, and produce a reliable estimate of the goodness of fit of the given model. We apply this technique to constrain the broadband power spectra of a sample of four Seyfert galaxies monitored by the Rossi X-ray Timing Explorer (RXTE) over three years. We show that the power spectra of three of the AGN in our sample (MCG-6-30-15, NGC5506 and NGC3516) flatten significantly towards low frequencies, while the power spectrum of NGC5548 shows no evidence of flattening. We fit two models for the flattening, a `knee' model, analogous to the low-frequency break seen in the power spectra of BHXRBs in the low state (where the power-spectral slope flattens to α=0) and a `high-frequency break' model (where the power-spectral slope flattens to α=1), analogous to the high-frequency break seen in the high and low-state power spectra of the classic BHXRB Cyg X-1. Both models provide good fits to the power spectra of all four AGN. For both models, the characteristic frequency for flattening is significantly higher in MCG-6-30-15 than in NGC 3516 (by factor ~10) although both sources have similar X-ray luminosities, suggesting that MCG-6-30-15 has a lower black hole mass and is accreting at a higher rate than NGC 3516. Assuming linear scaling of characteristic frequencies with black hole mass, the high accretion rate implied for MCG-6-30-15 favours the high-frequency break model for this source and further suggests that MCG-6-30-15 and possibly NGC 5506, may be analogues of Cyg X-1 in the high state [ABRIDGED].
description: 23 pages, accepted for publication in MNRAS
Metrics on sets of interval partitions with diversity
Creators: name: Forman, Noah
name: Pal, Soumik
name: Rizzolo, Douglas
name: Winkel, Matthias
Publisher: name: arXiv
Year: 2019
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: We first consider interval partitions whose complements are Lebesgue-null and introduce a complete metric that induces the same topology as the Hausdorff distance (between complements). This is done using correspondences between intervals. Further restricting to interval partitions with alpha-diversity, we then adjust the metric to incorporate diversities. We show that this second metric space is Lusin. An important feature of this topology is that path-continuity in this topology implies the continuous evolution of diversities. This is important in related work on tree-valued stochastic processes where diversities are branch lengths.
description: 12 pages; this preprint generalises and supersedes the parts of arXiv:1609.06706 concerning topologies on interval partitions
Appellations of origin and local customs: the need for innovation "Le Rhum de la Martinique": an example of AOC recognition of a product in an industrialised context
Creators: name: François, Roncin
name: François, Roncin
Publisher: name: Unknown
Year: 1999
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: Industrial Organization
subject: AOC
subject: appellation control and protection
subject: innovation
subject: local customs and traditions
subject: product specificity
subject: quality

description: The regulations concerning products of "Appellation d'Origine Controlée" (AOC) refer to accepted and established local customs. By "customs" is meant the collection of practices, which have been validated by past-experience and by the participants engaged in the establishment of AOC production. In France, the law confers on the lnstitut National des Appellations d'Origine (INAO) the responsibility of determining which of these customs deserve definition under AOC regulations of each product. The accession of Martinique rum to the AOC system illustrates how the transition from a standardised industrial process to a one that takes full account of the intrinsic qualities and variability of raw materials requires continual innovation in : - The organisation of relations among producers of the raw material, sugar cane, and between these producers and other participants in rum production ; - The quality and quantity control procedures used at each stage of the production process; - The methods of farming, manufacture and commercialisation. For AOC products, tradition is based on the search for quality and character and incorporates yearly variation of the characteristics of raw materials. Within this framework, continual innovation transforms into an asset the same variation that is considered a handicap in standard industrial processes. To do so requires scientific research that runs against the technological trend that seeks liberation from the uncertainty associated with agricultural production. The innovations resulting from this research reflect a strategy that values the initial, variable qualities of raw materials at each stage of the manufacturing process, rather than one that corrects or compensates for the properties of standardised raw materials.
Lossless quantum data compression and variable-length coding
Creators: name: Bostroem, Kim
name: Felbinger, Timo
Publisher: name: arXiv
Year: 2001
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In order to compress quantum messages without loss of information it is necessary to allow the length of the encoded messages to vary. We develop a general framework for variable-length quantum messages in close analogy to the classical case and show that lossless compression is only possible if the message to be compressed is known to the sender. The lossless compression of an ensemble of messages is bounded from below by its von-Neumann entropy. We show that it is possible to reduce the number of qbits passing through a quantum channel even below the von-Neumann entropy by adding a classical side-channel. We give an explicit communication protocol that realizes lossless and instantaneous quantum data compression and apply it to a simple example. This protocol can be used for both online quantum communication and storage of quantum data.
description: 16 pages, 5 figures
Natural Deep Eutectic Solvents as Agents for Improving Solubility, Stability and Delivery of Curcumin
Creators: name: Jeliński, Tomasz
name: Przybyłek, Maciej
name: Cysewski, Piotr
Publisher: name: arXiv
Year: 2019
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Purpose Study on curcumin dissolved in natural deep eutectic solvents (NADES) was aimed at exploiting their beneficial properties as drug carriers. Methods The concentration of dissolved curcumin in NADES was measured. Simulated gastrointestinal fluids were used to determine the concentration of curcumin and quantum chemistry computations were performed for clarifying the origin of curcumin solubility enhancement in NADES. Results NADES comprising choline chloride and glycerol had the highest potential for curcumin dissolution. This system was also successfully applied as an extraction medium for obtaining curcuminoids from natural sources, as well as an effective stabilizer preventing curcumin degradation from sunlight. The solubility of curcumin in simulated gastrointestinal fluids revealed that the significant increase of bioavailability takes place in the small intestinal fluid. Conclusions Suspension of curcumin in NADES offers beneficial properties of this new liquid drug formulation starting from excreting from natural sources, through safe storage and ending on the final administration route. Therefore, there is a possibility of using a one-step process with this medium. The performed quantum chemistry computations clearly indicated the origin of the enhanced solubility of curcumin in NADES in the presence of intestinal fluids. Direct intermolecular contacts leading to hetero-molecular pairs with choline chloride and glycerol are responsible for elevating the bulk concentration of curcumin. Choline chloride plays a dominant role in the system and the complexes formed with curcumin are the most stable among all possible homo- and hetero-molecular pairs that can be found in NADES-curcumin systems.
Electronic Correlation and Pseudogap-like Behavior of High-Temperature Superconductor La3Ni2O7
Creators: name: Li, Yidian
name: Du, Xian
name: Cao, Yantao
name: Pei, Cuiying
name: Zhang, Mingxin
name: Zhao, Wenxuan
name: Zhai, Kaiyi
name: Xu, Runzhe
name: Liu, Zhongkai
name: Li, Zhiwei
name: Zhao, Jinkui
name: Li, Gang
name: Qi, Yanpeng
name: Guo, Hanjie
name: Chen, Yulin
name: Yang, Lexian
Publisher: name: arXiv
Year: 2024
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: High-temperature superconductivity (HTSC) remains one of the most challenging and fascinating mysteries in condensed matter physics. Recently, superconductivity with transition temperature exceeding liquid-nitrogen temperature is discovered in La3Ni2O7 at high pressure, which provides a new platform to explore the unconventional HTSC. In this work, using high-resolution angle-resolved photoemission spectroscopy and ab-initio calculation, we systematically investigate the electronic structures of La3Ni2O7 at ambient pressure. Our experiments are in nice agreement with ab-initio calculations after considering an orbital-dependent band renormalization effect. The strong electron correlation effect pushes a flat band of d_(z^2 ) orbital component below the Fermi level (EF), which is predicted to locate right at EF under high pressure. Moreover, the d_(x^2-y^2 ) band shows a pseudogap-like behavior with suppressed spectral weight and diminished quasiparticle peak near EF. Our findings provide important insights into the electronic structure of La3Ni2O7, which will shed light on the understanding of the unconventional superconductivity in nickelates.
Dipolar and scalar $^{3}$He-$^{129}$Xe frequency shifts in stemless cells
Creators: name: Limes, M. E.
name: Dural, N.
name: Romalis, M. V.
name: Foley, E. L
name: Kornack, T. W.
name: Nelson, A.
name: Grisham, L. R.
name: Vaara, J.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We study nuclear spin frequency shifts in a $^{3}$He-$^{129}$Xe comagnetometer caused by spin polarization of $^{3}$He. We use stemless cylindrical cells to systematically vary the cell geometry and separately measure the cell shape-dependent and shape-independent frequency shifts. We find that a certain aspect ratio for a cylindrical cell cancels the dipolar effects of $^3$He magnetization in the regime of fast spin diffusion. Using this control we observe a scalar $^{3}$He-$^{129}$Xe collisional frequency shift characterized by an enhancement factor $κ_{\text{HeXe}} = -0.011\pm0.001$ in excellent agreement with theoretical calculation.
description: 4 pages, 4 figures. arXiv admin note: substantial text overlap with arXiv:1805.11578
How technology makes us human: cultural historical roots for Design and Technology Education.
Creators: name: McLain, Matt
name: Irving-Bell, Dawne
name: Wooff, David
name: Morrison-Love, David
Publisher: name: figshare
Year: 2021
Subjects: subject: Education
subject: 130106 Secondary Education
subject: FOS: Educational sciences
subject: 130313 Teacher Education and Professional Development of Educators
subject: 160506 Education Policy
subject: FOS: Political science
subject: 130101 Continuing and Community Education
subject: 130108 Technical, Further and Workplace Education
subject: 130103 Higher Education
subject: 130105 Primary Education (excl. Maori)
subject: 130303 Education Assessment and Evaluation
subject: 130213 Vocational Education and Training Curriculum and Pedagogy
subject: 220202 History and Philosophy of Education
subject: FOS: Philosophy, ethics and religion

description: In the context of curriculum change within English education, and beyond, this paper explores the cultural historical roots of design and technology as an educational construct, distinct from design or engineering, which exist as career paths outside of the school curriculum. It is a position piece, drawing on literature from a wide range of sources from writing, largely, outside of the discipline.
 The authors revisit the original intentions of design and technology as a National Curriculum subject and, within the contemporary challenges, discuss the importance of technology, including designing and making, as an essentially human and humanising activity. The aim being to contribute to the theorisation and philosophy of the subject, where typically practitioners focus on practical and potentially mundane concerns.
 This paper asserts that technological human activity is rooted in technological innovation and determinism, inextricably linked to social human activity. The aim is to add to the literature and provoke debate around the place and value of design and technology. The argument for retention of the subject, as part of a broad and balanced curriculum, is presented from a social and technological perspective; recognising the value of the subject as cultural rather than a merely technical or economic imperative.
Grimmia funalis Bruch & Schimp.
Creators: name: Ros, Rosa M.
name: Olaf, Susana Rams
name: Eloy, Olaf Werner
name: Cerón, Eloy
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Plantae
Bryophyta
Bryopsida
Grimmiales
Grimmiaceae
Grimmia
Grimmia funalis

description: Grimmia funalis (Schwägr.) Bruch & Schimp.
RECORDS. — Bescherelle (1882), Jelenc (1955a): Aurès. Jelenc (1955a): Atlas de Blida, 1400 m. Mazari & Boulaacheb (2023): Setif, Megriss Mountain. Rare.
description: Published as part of Ros, Rosa M., Olaf, Susana Rams, Eloy, Olaf Werner & Cerón, Eloy, 2024, Revisiting the Bryophyte Checklist of Algeria: Exploring Diversity and Distribution, pp. 49-116 in Cryptogamie, Bryologie 20 (5) on page 79, DOI: 10.5252/cryptogamie-bryologie2024v45a5, http://zenodo.org/record/14593891
Zero-Cost Course Faculty Direct Stipend [20191003b]
Creators: name: Bilby, Mark G.
Publisher: name: figshare
Year: 2019
Subjects: subject: Library and Information Studies
subject: FOS: Media and communications
subject: 140204 Economics of Education
subject: FOS: Economics and business
subject: Education

description: A proposal/recommendation for colleges in the state of California to pay faculty a direct stipend for each course they teach that is zero-cost to students.
Speedup in Quantum Adiabatic Evolution Algorithm
Creators: name: Bae, Joonwoo
name: Kwon, Younghun
Publisher: name: arXiv
Year: 2002
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum adiabatic evolution algorithm suggested by Farhi et al. was effective in solving instances of NP-complete problems. The algorithm is governed by the adiabatic theorem. Therefore, in order to reduce the running time, it is essential to examine the minimum energy gap between the ground level and the next one through the evolution. In this letter, we show a way of speedup in quantum adiabatic evolution algorithm, using the extended Hamiltonian. We present the exact relation between the energy gap and the elements of the extended Hamiltonian, which provides the new point of view to reduce the running time.
description: 5 pages, Latex
Microscopic Ampère current-current interaction
Creators: name: Su, Yuehua
name: Wang, Desheng
name: Zhang, Chao
Publisher: name: arXiv
Year: 2024
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Atomic Physics (physics.atom-ph)
subject: Biological Physics (physics.bio-ph)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: With the rapid development of modern measurement techniques, the energy resolution of $1 \, meV$ can now be easily obtained. Generally, the driving mechanisms of the physical, chemical or biological processes of the matters or the living organisms on Earth at about $1 \, meV$ energy scale are assumed to stem from the fundamental microscopic Coulomb interaction, its various reduced ones and the relativistic corrections. In this article, by using a path integral approach on a non-relativistic quantum electrodynamics theory, we show that there is another fundamental microscopic electromagnetic interaction at this energy scale, the microscopic Ampère current-current interaction. It has time-dependent dynamical feature and can be the driving interaction of the physical, chemical or biological processes at about $1\, meV$ energy scale. A new Ampère-type exchange spin interaction is also found with a magnitude about $10^{-4}$ of the well-known Heisenberg exchange spin interaction.
description: 9 pages, no figure; Revised version for publication
Programa “Semilleros en aula” en el desarrollo de destrezas investigativas de los estudiantes de Bibliotecología de la Universidad Nacional Mayor de San Marcos
Creators: name: Estrada-Cuzcano, Alonso
name: Mendives, Karen Lizeth Alfaro
Publisher: name: figshare
Year: 2021
Subjects: subject: Library and Information Studies
subject: FOS: Media and communications

description: Actualmente, la formación de destrezas investigativas es un tema de mucho interés para la docencia en la educación superior, pues permite al estudiante universitario desarrollar todas las capacidades para generar conocimiento y dar solución a problemas de tipo práctico identificados en las diferentes disciplinas, desde un punto de vista formativo. Lamentablemente, muchos estudiantes llegan a la educación superior con destrezas investigativas poco desarrolladas, con alto índice de plagio, pocos hábitos de lectura, entre otros; en particular, los estudiantes de Bibliotecología se caracterizan por involucrarse en la actividad laboral de manera muy temprana, por lo que sus investigaciones se orientan a la solución de problemas, siendo sus investigaciones básicamente descriptivas y de corte transversal y esto se debe, entre otras cosas, a la falta de estrategias de enseñanza innovadoras que les permitan desarrollar estas habilidades. La presente investigación fue de enfoque cuantitativo, de diseño experimental en su modalidad de preexperimental, se trabajó con 32 estudiantes. Se pudo concluir que la aplicación del programa “Semilleros en aula” tuvo un efecto significativo en el desarrollo de las destrezas investigativas de los estudiantes de la carrera de Bibliotecología de la Universidad Nacional Mayor de San Marcos, existiendo diferencias notables en el pretest (31,29) y postest (78,28), aceptándose la hipótesis planteada.
Integral Micromorphic Model Reproducing Dispersion in 1D Continuum
Creators: name: Šmejkal, Michal
name: Jirásek, Milan
name: Horák, Martin
Publisher: name: arXiv
Year: 2024
Subjects: subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: The paper develops a new integral micromorphic elastic continuum model, which can describe dispersion properties of band-gap metamaterials, i.e., metamaterials that inhibit propagation of waves in a certain frequency range. The enrichment consists in nonlocal averaging of three terms in the expression for the potential energy density of the standard micromorphic continuum. After proper calibration, such a formulation can exactly reproduce two given branches of the dispersion curve (acoustic and optical), even in cases with a band gap. The calibration process exploits Fourier images of the unknown weight functions, which are analytically deduced from the dispersion relation of the material of interest. The weight functions are then reconstructed in the spatial domain by numerical evaluation of the inverse Fourier transform. The presented approach is validated on several examples, including a discrete mass-spring chain with two alternating masses, for which the dispersion relation has an explicit analytical form and the optical and acoustic branches are separated by a band gap.
Quantum phase transition of two-level atoms interacting with a finite radiation field
Creators: name: Quezada, L. F.
name: Martín-Ruiz, A.
name: Frank, A.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We introduce a group-theoretical extension of the Dicke model which describes an ensemble of two-level atoms interacting with a finite radiation field. The latter is described by a spin model whose main feature is that it possesses a maximum number of excitations. The approach adopted here leads to a nonlinear extension of the Dicke model that takes into account both an intensity dependent coupling between the atoms and the radiation field, and an additional nonlinear Kerr-like or Pösch-Teller-like oscillator term, depending on the degree of nonlinearity. We use the energy surface minimization method to demonstrate that the extended Dicke model exhibits a quantum phase transition, and we analyze its dependence upon the maximum number of excitations of the model. Our analysis is carried out via three methods: through mean-field analysis (i.e. by using the tensor product of coherent states), by using parity-preserving symmetry-adapted states (using the critical values obtained in the mean-field analysis and numerically minimizing the energy surface) and by means of the exact quantum solution (i.e. by numerically diagonalizing the Hamiltonian). Possible connections with the $qp$-deformed algebras are also discussed.
description: Accepted for publication in Journal of Mathematical Physics
Cyrtodactylus tuberculatus
Creators: name: Shea, Glenn
name: Couper, Patrick
name: Wilmer, Jessica Worthington
name: Amey, Andrew
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Reptilia
Squamata
Gekkonidae
Cyrtodactylus
Cyrtodactylus tuberculatus

description: Cyrtodactylus tuberculatus (Lucas & Frost 1900)
(Fig. 9)
description: Published as part of Shea, Glenn, Couper, Patrick, Wilmer, Jessica Worthington & Amey, Andrew, 2011, Revision of the genus Cyrtodactylus Gray, 1827 (Squamata: Gekkonidae) in Australia 3146, pp. 1-63 in Zootaxa 3146 (1) on page 24, DOI: 10.11646/zootaxa.3146.1.1, http://zenodo.org/record/5246628
Grimmia laevigata Brid.
Creators: name: Ros, Rosa M.
name: Olaf, Susana Rams
name: Eloy, Olaf Werner
name: Cerón, Eloy
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Plantae
Bryophyta
Bryopsida
Grimmiales
Grimmiaceae
Grimmia
Grimmia laevigata

description: Grimmia laevigata (Brid.) Brid.
RECORDS. — Bescherelle (1882): Bab-Azoun; Vallée de l’oued Koubba. Bescherelle (1882), Jelenc (1955a): Alger;Édough; Philippeville; Pic Belloua; Tizi-Ouzou; Vallon de Birkadem. Gandoger (1883): sine loco. Corbière (1905), Jelenc (1955a): Environs de Constantine, djebel Ouach. Jelenc (1953, 1967): Massif du Bélezma, crêtes de Bordjem, 2200 m. Jelenc (1955a): Akfadou; Atlas de Blida, oued el Kebir, 300 m; Bône; Kabylie du Djurdjura, Fort National, 1000 m; Médéa. Frequent.
description: Published as part of Ros, Rosa M., Olaf, Susana Rams, Eloy, Olaf Werner & Cerón, Eloy, 2024, Revisiting the Bryophyte Checklist of Algeria: Exploring Diversity and Distribution, pp. 49-116 in Cryptogamie, Bryologie 20 (5) on page 79, DOI: 10.5252/cryptogamie-bryologie2024v45a5, http://zenodo.org/record/14593891
UntitlePrograma “Semilleros en aula” en el desarrollo de destrezas investigativas de los estudiantes de Bibliotecología de la Universidad Nacional Mayor de San Marcos
Creators: name: Estrada-Cuzcano, Alonso
name: Mendives, Karen Lizeth Alfaro
Publisher: name: figshare
Year: 2021
Subjects: subject: Library and Information Studies
subject: FOS: Media and communications

description: Actualmente, la formación de destrezas investigativas es un tema de mucho interés para la docencia en la educación superior, pues permite al estudiante universitario desarrollar todas las capacidades para generar conocimiento y dar solución a problemas de tipo práctico identificados en las diferentes disciplinas, desde un punto de vista formativo. Lamentablemente, muchos estudiantes llegan a la educación superior con destrezas investigativas poco desarrolladas, con alto índice de plagio, pocos hábitos de lectura, entre otros; en particular, los estudiantes de Bibliotecología se caracterizan por involucrarse en la actividad laboral de manera muy temprana, por lo que sus investigaciones se orientan a la solución de problemas, siendo sus investigaciones básicamente descriptivas y de corte transversal y esto se debe, entre otras cosas, a la falta de estrategias de enseñanza innovadoras que les permitan desarrollar estas habilidades. La presente investigación fue de enfoque cuantitativo, de diseño experimental en su modalidad de preexperimental, se trabajó con 32 estudiantes. Se pudo concluir que la aplicación del programa “Semilleros en aula” tuvo un efecto significativo en el desarrollo de las destrezas investigativas de los estudiantes de la carrera de Bibliotecología de la Universidad Nacional Mayor de San Marcos, existiendo diferencias notables en el pretest (31,29) y postest (78,28), aceptándose la hipótesis planteada.
Virtual Element for the Buckling Problem of Kirchhoff-Love plates
Creators: name: Mora, David
name: Velásquez, Iván
Publisher: name: arXiv
Year: 2019
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 65N25, 65N30, 74K20, 65N15

description: In this paper, we develop a virtual element method (VEM) of high order to solve the fourth order plate buckling eigenvalue problem on polygonal meshes. We write a variational formulation based on the Kirchhoff-Love model depending on the transverse displacement of the plate. We propose a $C^1$ conforming virtual element discretization of arbitrary order $k\ge2$ and we use the so-called Babuska--Osborn abstract spectral approximation theory to show that the resulting scheme provides a correct approximation of the spectrum and prove optimal order error estimates for the buckling modes (eigenfunctions) and a double order for the buckling coefficients (eigenvalues). Finally, we report some numerical experiments illustrating the behaviour of the proposed scheme and confirming our theoretical results on different families of meshes.
description: arXiv admin note: text overlap with arXiv:1703.04187, arXiv:1803.01979
Integrable Lattice Realizations of N=1 Superconformal Boundary Conditions
Creators: name: Richard, Christoph
name: Pearce, Paul A.
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We construct integrable boundary conditions for sl(2) coset models with central charges c=3/2-12/(m(m+2)) and m=3,4,... The associated cylinder partition functions are generating functions for the branching functions but these boundary conditions manifestly break the superconformal symmetry. We show that there are additional integrable boundary conditions, satisfying the boundary Yang-Baxter equation, which respect the superconformal symmetry and lead to generating functions for the superconformal characters in both Ramond and Neveu-Schwarz sectors. We also present general formulas for the cylinder partition functions. This involves an alternative derivation of the superconformal Verlinde formula recently proposed by Nepomechie.
description: 22 pages, 12 figures; section 2 rewritten; journal-ref. added
The story of Art for the Brain at Fine Studios
Creators: name: Dawson, Jane E
Publisher: name: figshare
Year: 2019
Subjects: Design

description: It has recently been reported that the therapeutic value of art can help reduce agitation and anxiety with people with dementia. Art for the Brain is a visual art workshop for anyone with a diagnosis of dementia, and their families, friends and carers. Held in a dedicated studio space and led by professional practicing artists, supported by student volunteers, more than 20 artists attend each week over two sessions. This is the story of four of them, two with a diagnosis of dementia, and two friends.
Frustrated Ising charge correlations in the kagome metal ScV$_6$Sn$_6$
Creators: name: Alvarado, S. J. Gomez
name: Pokharel, G.
name: Ortiz, B. R.
name: Paddison, Joseph A. M.
name: Sarker, Suchismita
name: Ruff, J. P. C.
name: Wilson, Stephen D.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Here we resolve the real-space nature of the high-temperature, short-range charge correlations in the kagome metal ScV$_6$Sn$_6$. Diffuse scattering appears along a frustrated wave vector $\textbf{q}_H=(\frac{1}{3},\frac{1}{3},\frac{1}{2})$ at temperatures far exceeding the charge order transition $T_{CO}=92~\mathrm{K}$, preempting long-range charge order with wave vectors along $\textbf{q}_{\bar{K}}=(\frac{1}{3},\frac{1}{3},\frac{1}{3})$. Using a combination of real space and reciprocal space analysis, we resolve the nature of the interactions between the primary out-of-plane Sc-Sn chain instability and the secondary strain-mediated distortion of the in-plane V kagome network. A minimal model of the diffuse scattering data reveals a high-temperature, short-ranged "zig-zag" phase of in-plane correlations that maps to a frustrated triangular lattice Ising model with antiferromagnetic interactions and provides a real-space understanding of the origin of frustrated charge order in this material.
description: 7 pages, 4 figures
Additional file 1 of miRNA sequencing analysis of healthy and atretic follicles of chickens revealed that miR-30a-5p inhibits granulosa cell death via targeting Beclin1
Creators: name: He, Haorong
name: Li, Dongmei
name: Tian, Yongtong
name: Wei, Qinyao
name: Amevor, Felix Kwame
name: Sun, Congjiao
name: Yu, Chunlin
name: Yang, Chaowu
name: Du, Huarui
name: Jiang, Xiaosong
name: Ma, Menggen
name: Cui, Can
name: Zhang, Zhichao
name: Tian, Kai
name: Zhang, Yao
name: Zhu, Qing
name: Yin, Huadong
Publisher: name: figshare
Year: 2022
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1: Fig. S1. miRNA expression TPM density distribution map.
Grimmia meridionalis E. Maier 2002
Creators: name: Ros, Rosa M.
name: Olaf, Susana Rams
name: Eloy, Olaf Werner
name: Cerón, Eloy
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Plantae
Bryophyta
Bryopsida
Grimmiales
Grimmiaceae
Grimmia
Grimmia meridionalis

description: Grimmia meridionalis (Müll. Hall.) E.Maier
RECORDS. — Bescherelle (1882), Corbière (1904), Jelenc (1955a): Bône; Djebel Édough. Bescherelle (1882), Jelenc (1955a): Alger; Mascara. Jelenc (1955a): Kabyblie du Djurdjura, Aït Idjer; La Calle; Lac el Hout; Palestro. Rare.
COMMENT
After the recognition of G. dissimulata E.Maier (Maier 2002), it is highly probable that some reports of G. meridionalis actually pertain to the former species.
description: Published as part of Ros, Rosa M., Olaf, Susana Rams, Eloy, Olaf Werner & Cerón, Eloy, 2024, Revisiting the Bryophyte Checklist of Algeria: Exploring Diversity and Distribution, pp. 49-116 in Cryptogamie, Bryologie 20 (5) on page 79, DOI: 10.5252/cryptogamie-bryologie2024v45a5, http://zenodo.org/record/14593891
PT-symmetry entails pseudo-Hermiticity regardless of diagonalizability
Creators: name: Zhang, Ruili
name: Qin, Hong
name: Xiao, Jianyuan
Publisher: name: arXiv
Year: 2019
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: We prove that in finite dimensions, a Parity-Time (PT)-symmetric Hamiltonian is necessarily pseudo-Hermitian regardless of whether it is diagonalizable or not. This result is different from Mostafazadeh's, which requires the Hamiltonian to be diagonalizable. PT-symmetry breaking often occurs at exceptional points where the Hamiltonian is not diagonalizable. Our result implies that PT-symmetry breaking is equivalent to the onset of instabilities of pseudo-Hermitian systems, which was systematically studied by Krein et al. in 1950s. In particular, we show that the mechanism of PT-symmetry breaking is the resonance between eigenmodes with different Krein signatures.
description: 11pages, 1 figure. arXiv admin note: text overlap with arXiv:1801.01676
'Beyond quantum theory: a realist psycho-biological interpretation of reality' revisited
Creators: name: Josephson, Brian D.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Quantum Physics (quant-ph)
subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: It is hypothesised, following Conrad et al. (1988) (http://www.tcm.phy.cam.ac.uk/~bdj10/papers/urbino.html) that quantum physics is not the ultimate theory of nature, but merely a theoretical account of the phenomena manifested in nature under particular conditions. These phenomena parallel cognitive phenomena in biosystems in a number of ways and are assumed to arise from related mechanisms. Quantum and biological accounts are complementary in the sense of Bohr and quantum accounts may be incomplete. In particular, following ideas of Stapp, 'the observer' is a system that, while lying outside the descriptive capacities of quantum mechanics, creates observable phenomena such as wave function collapse through its probing activities. Better understanding of such processes may pave the way to new science.
description: 6 pages. Invited contribution to the forthcoming issue of BioSystems in memory of Michael Conrad. Now includes links to references on the Web
The photometric and spectral investigation of CI Camelopardalis, an X-ray transient and B[e] star
Creators: name: Barsukova, E. A.
name: Borisov, N. V.
name: Goranskij, V. P.
name: Lyuty, V. M.
name: Metlova, N. V.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We combined the results of UBVR photometry of CI Cam taken at Sternberg Astronomical Institute in 1998--2001, and moderate resolution spectroscopy taken at Special Astrophysical Observatory during the same time period. Photometry as well as fluxes of Balmer emissions and of some Fe II emission lines of CI Cam in quiet state reveal a cyclic variation with the period of $1100\pm50^d$. The variation like this may be due to an orbital motion in a wide pair with a giant star companion that exhibits the reflection effect on its side faced to a compact companion. The V-band photometry also confirms the pre-outburst 11.7 day period found by Miroshnichenko earlier, but with a lower amplitude of 3 per cent. The possibility of identity of this photometric period with the period of jet's rotation in the VLA radio map of the object CI Cam was investigated. The radio map modelling reveals the inclination of the jet rotation axis to the line of sight, $i = 35-40^o$, the angle between the rotation axis and the direction of ejection of the jet, $θ= 7-10^o$, and jet's spatial velocity of 0.23--0.26c. Equivalent widths and fluxes of various spectral lines show different amplitudes of changes during the outburst, and essentially distinct behaviour in quiescence. Five types of such behaviour were revealed, that indicates the strong stratification of a gas and dust envelope round the system . The time lag of strengthening of 50--250$^d$ in the forbidden line of nitrogen [N II] was found relatively to the X-ray outburst maximum.
description: 15 pages, 8 figures, 3 tables, Astron. Zh., 2002, (in press), vol.79, number 2
Matrix $ϕ^4$ Models on the Fuzzy Sphere and their Continuum Limits
Creators: name: Dolan, Brian P.
name: O'Connor, Denjoe
name: Presnajder, P.
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We demonstrate that the UV/IR mixing problems found recently for a scalar $ϕ^4$ theory on the fuzzy sphere are localized to tadpole diagrams and can be overcome by a suitable modification of the action. This modification is equivalent to normal ordering the $ϕ^4$ vertex. In the limit of the commutative sphere, the perturbation theory of this modified action matches that of the commutative theory.
description: 19 pages of LaTeX, with 3 figures
Measurements of the Safety Function Response Time on a Private 5G and IO-Link Wireless Testbed
Creators: name: Beuster, Henry
name: Tebbe, Kevin
name: Doebbert, Thomas
name: Scholl, Gerd
Publisher: name: arXiv
Year: 2024
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: In the past few years, there has been a growing significance of interactions between human workers and automated systems throughout the factory floor. Wherever static or mobile robots, such as automated guided vehicles, operate autonomously, a protected environment for personnel and machines must be provided by, e.g., safe, deterministic and low-latency technologies. Another trend in this area is the increased use of wireless communication, offering a high flexibility, modularity, and reduced installation and maintenance efforts. This work presents a testbed implementation that integrates a wireless framework, employing IO-Link Wireless (IOLW) and a private 5G cellular network, to orchestrate a complete example process from sensors and actuators up into the edge, represented by a programmable logic controller (PLC). Latency assessments identify the systems cycle time as well as opportunities for improvement. A worst-case estimation shows the attainable safety function response time for practical applications in the context of functional safety.
description: 6 pages, accepted for ETFA 2024 (IEEE 29th International Conference on Emerging Technologies and Factory Automation)