cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Dark Matter Annihilation in Substructures Revised
Creators: name: Pieri, L.
name: Bertone, G.
name: Branchini, E
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Upcoming $γ$-ray satellites will search for Dark Matter annihilations in Milky Way substructures (or 'clumps'). The prospects for detecting these objects strongly depend on the assumptions made on the distribution of Dark Matter in substructures, and on the distribution of substructures in the Milky Way halo. By adopting simplified, yet rather extreme, prescriptions for these quantities, we compute the number of sources that can be detected with upcoming experiments such as GLAST, and show that, for the most optimistic particle physics setup ($m_χ=40$ GeV and annihilation cross section $σv = 3 \times 10^{-26}$ cm$^3$ s$^{-1}$), the result ranges from zero to $\sim$ hundred sources, all with mass above $10^{5}M\odot$. However, for a fiducial DM candidate with mass $m_χ=100$ GeV and $σv = 10^{-26}$ cm$^3$ s$^{-1}$, at most a handful of large mass substructures can be detected at $5 σ$, with a 1-year exposure time, by a GLAST-like experiment. Scenarios where micro-clumps (i.e. clumps with mass as small as $10^{-6}M\odot$) can be detected are severely constrained by the diffuse $γ$-ray background detected by EGRET.
description: Version accepted for publication in MNRAS. Other subhalos mass function slopes added. All-sky analysis performed. Boost factors added. High resolution figures for all models in http://www2.iap.fr/users/bertone/Clumps/
Mejores prácticas internacionales para la industria petrolera : un estudio sobre la adopción de los estándares regulatorios “Mejor Tecnología Disponible” - MTD y “Mejor y Más Segura Tecnología Disponible” – MMSTD
Creators: name: Mateus Diaz, Johanna
Publisher: name: Universidad Externado de Colombia
Year: 2024
Subjects: subject: Petróleo - Colombia
subject: Innovaciones tecnológicas - Aspectos jurídicos
subject: Petróleo - Legislación
subject: Reglamento técnico
subject: Regulatory standard
subject: Buenas prácticas de la industria del petróleo
subject: Best and safest technology available
subject: Mejor y más segura tecnología disponible

description: La regulación colombiana hace extensa referencia a las buenas prácticas de la industria del petróleo, pero no ha vinculado los estándares regulatorios denominados “mejor tecnología disponible” - MDT y “mejor y más segura tecnología disponible” y MMSTD, que puede ser considerado como el mejor y último desarrollo regulatorio a nivel mundial y está asociado a mantener y gestionar procedimientos dinámicos de actualización tecnológica en pro de eficiencia y seguridad del negocio con el menor efecto posible de las operaciones industriales. Los cambios en la regulación suelen ser vista como un costo por parte de los regulados, pero el Estado, como protector y garante de las diversas formas de vida y del recurso petrolero de la nación, no puede ser laxo en la exigencia de los estándares que surgen como lecciones aprendidas de grandes catástrofes, y pérdidas económicas y medio ambientales. Se hace un barrido para las operaciones de YNC y de Exploración y Producción Costa Afuera, sobre la adopción de los estándares MTD y MMSTD, como nivel regulatorio superior de las buenas prácticas indicando cuáles serían los elementos claves de una propuesta de implementación sugerida.
description: Colombian regulation makes extensive reference to good practices in the oil industry, but has not linked the regulatory standards called "best available technology" (BAT) and "best and safest technology available" (BAST), which can be considered the best and latest regulatory development worldwide and is associated with maintaining and managing dynamic processes of technological updating for the sake of efficiency and safety of the business with the least possible effect from industrial operations. Changes in regulation are often seen as a cost by those being regulated, but the State, as the protector and guarantor of the various forms of life and the nation's oil resources, cannot be lax in demanding the standards that arise as lessons learned from major catastrophes, and economic and environmental losses. A review is made for the operations of YNC and Offshore Exploration and Production, on the adoption of BAT and BATS standards, as a higher regulatory level of good practices indicating what would be the key elements of a suggested implementation proposal.
Calibrating photometric redshift measurements with the Multi-channel Imager (MCI) of the China Space Station Telescope (CSST)
Creators: name: Cao, Ye
name: Gong, Yan
name: Zheng, Zhen-Ya
name: Xu, Chun
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The China Space Station Telescope (CSST) photometric survey aims to perform a high spatial resolution (~0.15'') photometric imaging for the targets that cover a large sky area (~17,500 deg^2) and wide wavelength range (from NUV to NIR). It expects to explore the properties of dark matter, dark energy, and other important cosmological and astronomical areas. In this work, we evaluate whether the filter design of the Multi-channel Imager (MCI), one of the five instruments of the CSST, can provide accurate photometric redshift (photo-z) measurements with its nine medium-band filters to meet the relevant scientific objectives. We generate the mock data based on the COSMOS photometric redshift catalog with astrophysical and instrumental effects. The application of upper limit information of low signal-to-noise ratio (SNR) data is adopted in the estimation of photo-z. We investigate the dependency of photo-z accuracy on the filter parameters, such as band position and width. We find that the current MCI filter design can achieve good photo-z measurements with accuracy sigma_z~0.017 and outlier fraction f_c~2.2%. It can effectively improve the photo-z measurements of the main CSST survey using the Survey Camera (SC) to an accuracy sigma_z~0.015 and outlier fraction f_c~1.5%. It indicates that the original MCI filters are proper for the photo-z calibration.
description: 13 pages, 6 figures, 3 tables. Accepted for publication in RAA
Power law scaling of lateral deformations with universal Poissons index for randomly folded thin sheets
Creators: name: Balankin, Alexander S.
name: Ochoa, Didier Samayoa
name: Leon, Ernesto Pineda
name: de Oca, Rolando Cortes Montes
name: Rangel, Antonio Horta
name: Cruz, Miguel Angel Martinez
Publisher: name: arXiv
Year: 2008
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We study the lateral deformations of randomly folded elastoplastic and predominantly plastic thin sheets under the uniaxial and radial compressions. We found that the lateral deformations of cylinders folded from elastoplastic sheets of paper obey a power law behavior with the universal Poissons index nu = 0.17 pm 0.01, which does not depend neither the paper kind and sheet sizes, nor the folding confinement ratio. In contrast to this, the lateral deformations of randomly folded predominantly plastic aluminum foils display the linear dependence on the axial compression with the universal Poissons ratio nu_e = 0.33 pm 0.01. This difference is consistent with the difference in fractal topology of randomly folded elastoplastic and predominantly plastic sheets, which is found to belong to different universality classes. The general form of constitutive stress-deformation relations for randomly folded elastoplastic sheets is suggested.
Principios que sustenta los cambios tecnológicos en el mercado minorista de energía
Creators: name: Caballero Cagua, Angie Paola
Publisher: name: Universidad Externado de Colombia
Year: 2024
Subjects: subject: Desarrollo energético - Legislación
subject: Innovaciones tecnológicas - Estudios de caso
subject: Política industrial - Aspectos jurídicos
subject: Nuevas tecnologías
subject: Usuario final de energía
subject: Mercados energéticos
subject: Regulación energética
subject: Principios energéticos

description: Los desarrollos tecnológicos han impactado la manera en la que se realizan distintas actividades del cotidiano, ahora el turno es para las actividades de la cadena de generación de energía eléctrica. Tradicionalmente el usuario final ha sido un actor inflexible y con un papel secundario, en donde los usuarios no regulados son los únicos que están en capacidad de negociar al menos dos componentes de la formula tarifaria, sin embargo, los contratos son rígidos en la estructura tarifaria y en el modelo de liquidación (energía consumida por tarifa). Nuevas tecnologías como la Infraestructura de Medición Avanzada, paneles solares, sistemas de almacenamiento de energía, blockchain, abren la puerta a nuevas formas de comercializar la energía eléctrica y exigen la revisión del marco regulatorio y legal actual, siendo el punto de atención en este caso los principios establecidos en la Ley 142 y 143 de 1994.
description: The technological developments have impacted the way in that different cotidian activities has realized, now is the turn to the activities of the chain´s generation of electric energy. Tradicionally the final user has been an unflexible actor and with a secondary role, where the not regulated users are the ones in capacity of negociate two components of tariff formule at least, however, the contracts are rigid in the tariff structure and in the liquidation model (energy consummed per tariff). New technologies like the advanced measurement infrastructure, solar pannels, storage of energy sistems, blockchain, open the door to new ways to commercialize electric energy and demand the revision of present regulatory and legal mark, being the attention point in this case the stablished principles at the law 142 and 143 of 1994.
Gravitational dynamics in s+1+1 dimensions II. Hamiltonian theory
Creators: name: Kovács, Zoltán
name: Gergely, László Á.
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We develop a Hamiltonian formalism of brane-world gravity, which singles out two preferred, mutually orthogonal directions. One is a unit twist-free field of spatial vectors with integral lines intersecting perpendicularly the brane. The other is a temporal vector field with respect to which we perform the Arnowitt-Deser-Misner decomposition of the Einstein-Hilbert Lagrangian. The gravitational variables arise from the projections of the spatial metric and their canonically conjugated momenta as tensorial, vectorial and scalar quantities defined on the family of hypersurfaces containing the brane. They represent the gravitons, a gravi-photon and a gravi-scalar, respectively. From the action we derive the canonical evolution equations and the constraints for these gravitational degrees of freedom both on the brane and outside it. By integrating across the brane, the dynamics also generates the tensorial and scalar projection of the Lanczos equation. The vectorial projection of the Lanczos equation arises in a similar way from the diffeomorphism constraint. Both the graviton and the gravi-scalar are continuous across the brane, however the momentum of the gravi-vector has a jump, related to the energy transport (heat flow) on the brane.
description: 13 pages
Additional file 1 of Cost burden and net monetary benefit loss of neonatal hypoglycaemia
Creators: name: Glasgow, Matthew J.
name: Edlin, Richard
name: Harding, Jane E.
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Neuroscience
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy
subject: Computational Biology

description: Additional file 1: Supplementary Table 1. Search strategy for neonatal hypoglycaemia outcomes (Medline and Embase).
Relentless and Complex Transits from a Planetesimal Debris Disk
Creators: name: Farihi, J.
name: Hermes, J. J.
name: Marsh, T. R.
name: Mustill, A. J.
name: Wyatt, M. C.
name: Guidry, J. A.
name: Wilson, T. G.
name: Redfield, S.
name: Izquierdo, P.
name: Toloza, O.
name: Gänsicke, B. T.
name: Aungwerojwit, A.
name: Dhillon, V. S.
name: Swan, A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: This article reports quasi-continuous transiting events towards WD 1054-226 at d=36.2 pc and V=16.0 mag, based on simultaneous, high-cadence, multi-wavelength imaging photometry using ULTRACAM over 18 nights from 2019 to 2020 March. The predominant period is 25.02 h, and corresponds to a circular orbit with blackbody Teq = 323 K, where a planetary surface can nominally support liquid water. The light curves reveal remarkable night-to-night similarity, with changes on longer timescales, and lack any transit-free segments of unocculted starlight. The most pronounced dimming components occur every 23.1 min -- exactly the 65th harmonic of the fundamental period -- with depths of up to several per cent, and no evident color dependence. Myriad additional harmonics are present, as well as at least two transiting features with independent periods. High-resolution optical spectra are consistent with stable, photospheric absorption by multiple, refractory metal species, with no indication of circumstellar gas. Spitzer observations demonstrate a lack of detectable dust emission, suggesting that the otherwise hidden circumstellar disk orbiting WD 1054-226 may be typical of polluted white dwarfs, and only detected via favorable geometry. Future observations are required to constrain the orbital eccentricity, but even if periastron is near the Roche limit, sublimation cannot drive mass loss in refractory parent bodies, and collisional disintegration is necessary for dust production.
description: 22 pages, 2 tables, and 15 figures including the appendix, accepted to MNRAS
Additional file 2 of Cost burden and net monetary benefit loss of neonatal hypoglycaemia
Creators: name: Glasgow, Matthew J.
name: Edlin, Richard
name: Harding, Jane E.
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Neuroscience
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy
subject: Computational Biology

description: Additional file 2: Supplementary Figure 1. PRISMA flow diagram - prevalences of neonatal hypoglycaemia outcomes.
The lower mass function of the young open cluster Blanco 1: from 30 Mjup to 3 Mo
Creators: name: Moraux, Estelle
name: Bouvier, Jerome
name: Stauffer, John
name: Navascues, David Barrado Y
name: Cuillandre, Jean-Charles
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We performed a deep wide field optical survey of the young (~100-150 Myr) open cluster Blanco1 to study its low mass population well down into the brown dwarf regime and estimate its mass function over the whole cluster mass range.The survey covers 2.3 square degrees in the I and z-bands down to I ~ z ~ 24 with the CFH12K camera. Considering two different cluster ages (100 and 150 Myr), we selected cluster member candidates on the basis of their location in the (I,I-z) CMD relative to the isochrones, and estimated the contamination by foreground late-type field dwarfs using statistical arguments, infrared photometry and low-resolution optical spectroscopy. We find that our survey should contain about 57% of the cluster members in the 0.03-0.6 Mo mass range, including 30-40 brown dwarfs. The candidate's radial distribution presents evidence that mass segregation has already occured in the cluster. We took it into account to estimate the cluster mass function across the stellar/substellar boundary. We find that, between 0.03Mo and 0.6Mo, the cluster mass distribution does not depend much on its exact age, and is well represented by a single power-law, with an index alpha=0.69 +/- 0.15. Over the whole mass domain, from 0.03Mo to 3Mo, the mass function is better fitted by a log-normal function with m0=0.36 +/- 0.07Mo and sigma=0.58 +/- 0.06. Comparison between the Blanco1 mass function, other young open clusters' MF, and the galactic disc MF suggests that the IMF, from the substellar domain to the higher mass part, does not depend much on initial conditions. We discuss the implications of this result on theories developed to date to explain the origin of the mass distribution.
description: 18 pages, 15 figures and 5 tables accepted in A&A
Giuseppe Pucci. Scritti corsari di un archeologo classico Antologia da “Alias”, supplemento culturale de “il manifesto” 2012-2021
Creators: name: Andreotti, Roberto
Publisher: name: La Rivista di Engramma
Year: 2021
Subjects: Giuseppe Pucci
Alias
il manifesto
archaeology
Classical tradition

description: The essay concerns the collaboration between Giuseppe Pucci and “Alias”, the cultural supplement of the Italian newspaper il manifesto. All the contributions show Pucci’s great attention to the Classical Tradition in the production of contemporary culture (books, exhibitions, interviews). Here we present a selection in the rich production of Pucci published in “Alias”. Among others, here are available: reviews on books (M. Bettini, Vertere; P. Montani, Tre forme di creatività; M. Harari, Andare per i luoghi di Ulisse), exhibitions (Trajan, Rome 2018; Ovid, Rome 2018), movies (Monuments Men), and so on
Additional file 2 of The mutational landscape of human olfactory G protein-coupled receptors
Creators: name: Jimenez, Ramón Cierco
name: Casajuana-Martin, Nil
name: García-Recio, Adrián
name: Alcántara, Lidia
name: Pardo, Leonardo
name: Campillo, Mercedes
name: Gonzalez, Angel
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 2: Figure S1. Chromosomal distribution of natural variants within OR families. Figure S2. Topological distribution of natural variants within OR families. Figure S3. The GPCRtm amino acid substitution scores. Figure S4. Functional core (FC) topological positions in class A GPCRs. Figure S5. Binding cavity (BC) topological positions in class A GPCRs. Figure S6. Human OR mutations with potential functional effects. Figure S7. Structure-based sequence alignment used in topological annotation.
Dynamics of vortices in weakly interacting Bose-Einstein condensates
Creators: name: Klein, Alexander
name: Jaksch, Dieter
name: Zhang, Yanzhi
name: Bao, Weizhu
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the dynamics of vortices in ideal and weakly interacting Bose-Einstein condensates using a Ritz minimization method to solve the two-dimensional Gross-Pitaevskii equation. For different initial vortex configurations we calculate the trajectories of the vortices. We find conditions under which a vortex-antivortex pair annihilates and is created again. For the case of three vortices we show that at certain times two additional vortices may be created, which move through the condensate and annihilate each other again. For a noninteracting condensate this process is periodic, whereas for small interactions the essential features persist, but the periodicity is lost. The results are compared to exact numerical solutions of the Gross-Pitaevskii equation confirming our analytical findings.
description: 8 pages, 7 figures, one reference updated, typos corrected
Bases para la protección de usuarios mediante la atribución de funciones jurisdiccionales a la superintendencia de servicios públicos domiciliarios
Creators: name: Romero Rojas, Diana Marcela
Publisher: name: Universidad Externado de Colombia
Year: 2024
Subjects: subject: Derecho administrativo - Colombia
subject: Administración de justicia - Legislación
subject: Servicios públicos - Aspectos jurídicos
subject: Funciones jurisdiccionales
subject: Autoridades administrativas
subject: Congestión de la justicia

description: Actualmente existe un régimen en la vía administrativa para la protección de los usuarios de los servicios públicos domiciliarios, por virtud de la Ley 142 de 1994, a cargo de la Superservicios, como ente de inspección y vigilancia; en atención a una asignación de funciones de tipo legal y constitucional. Cabe resaltar, que los servicios públicos domiciliarios son una categoría particular de servicios públicos en el ordenamiento jurídico colombiano, lo cual deviene en su especial protección y regulación por parte del Estado. No obstante, la SIC desarrolla funciones similares en estas materias, en la medida que la competencia para el desarrollo de funciones administrativas de protección al consumidor, le fueron asignadas en la Ley 1480 de 2011. Esto implica una atribución de funciones a prevención por parte de la SIC, por cuanto es la autoridad de protección al consumidor, pero es la Superservicios la autoridad administrativa en la materia. De otro lado, aunque según el artículo 24 del Código General del Proceso, es la SIC la que goza de atribuciones para ejercer funciones jurisdiccionales en materia de protección a los consumidores, establecidas en la Ley 1480 de 2011; esta resulta ser una protección limitada en sede jurisdiccional.
description: There is currently an administrative regime for the protection of users of domestic public services, included in the Law 142 of 1994, which is in charge by the superintendence of Public Services, as an inspection and surveillance entity; in response to an assignment of functions of a legal and constitutional nature. It should be noted that domestic public services are a particular category of public services in the Colombian legal system, which results in their special protection and regulation by the State. However, the SIC carries out similar functions in these matters, to the extent that the competence for the development of administrative functions for consumer protection was assigned to it by the Law 1480 of 2011. This implies an attribution of functions to the SIC, since it is the consumer protection authority, but the Superservicios is the administrative authority in the field of domestic publics services. On the other hand, although according to Article 24 of the General Code of Procedure, it is the SIC that has the powers to exercise jurisdictional functions in matters of consumer protection, established in Law 1480 of 2011; this turns out to be a limited protection to the users.
Near-exact CCSDT energetics from rank-reduced formalism supplemented by non-iterative corrections
Creators: name: Lesiuk, Michał
Publisher: name: arXiv
Year: 2021
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We introduce a non-iterative energy correction, added on top of the rank-reduced coupled-cluster method with single, double, and triple substitutions, that accounts for excitations excluded from the parent triple excitation subspace. The formula for the correction is derived by employing the coupled-cluster Lagrangian formalism with an additional assumption that the parent excitation subspace is closed under the action of the Fock operator. Owning to the rank-reduced form of the triple excitation amplitudes tensor, the computational cost of evaluating the correction scales as $N^7$ with the system size, $N$. The accuracy and computational efficiency of the proposed method is assessed both for total and relative correlation energies. We show that the non-iterative correction can fulfill two separate roles. If an accuracy level of a fraction of kJ/mol is sufficient for a given system the correction significantly reduces the dimension of the parent triple excitation subspace needed in the iterative part of the calculations. Simultaneously, it enables to reproduce the exact CCSDT results to an accuracy level below 0.1 kJ/mol with a larger, yet still reasonable, dimension of the parent excitation subspace. This typically can be achieved at a computational cost only several times larger than required for the CCSD(T) method. The proposed method retains black-box features of the single-reference coupled-cluster theory; the dimension of the parent excitation subspace remains the only additional parameter that has to be specified.
Acoustic metafluids
Creators: name: Norris, Andrew N.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Acoustic metafluids are defined as the class of fluids that allow one domain of fluid to acoustically mimic another, as exemplified by acoustic cloaks. It is shown that the most general class of acoustic metafluids are materials with anisotropic inertia and the elastic properties of what are known as pentamode materials. The derivation uses the notion of finite deformation to define the transformation of one region to another. The main result is found by considering energy density in the original and transformed regions. Properties of acoustic metafluids are discussed, and general conditions are found which ensure that the mapped fluid has isotropic inertia, which potentially opens up the possibility of achieving broadband cloaking.
description: 12 pages, 6 figures
3C 40 in Abell 194: can tail radio galaxies exist in a quiescent cluster?
Creators: name: Sakelliou, I.
name: Hardcastle, M. J.
name: Jetha, N. N.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The nearby cluster Abell 194 hosts two luminous, distorted radio galaxies. Both reside within the cluster's core region, being separated in projection by only 100 kpc. It is often suggested that tailed radio galaxies such as these reside in clusters that are under formation and are accreting new material from their outskirts. In this paper we study the intriguing appearance of Abell 194, and test whether the cluster and radio source dynamics are consistent with the cluster formation/merger model. We analyse data from the XMM-Newton satellite and previously unpublished observations with the Very Large Array (VLA), as well as presenting new data from the Giant Metre-Wave Radio Telescope (GMRT). The shape of the jets, and the lack of significant stripping of the galaxies' interstellar media, indicate that the radio galaxies are not moving at the large velocities they would have had if they were falling into the cluster from its outskirts; galaxy velocities of <=300 km s^-1 are adequate instead. A plausible scenario that could explain the observations is that the dynamics of the cluster centre are relatively quiescent, with the dominant system of massive galaxies being bound and orbiting the cluster centre of mass. For plausible jet/plume speeds and densities and the galaxy dynamics implied by this picture of the cluster, we show that the observed jet structures can be explained without invoking a major cluster merger event.
description: 7 pages. Accepted for MNRAS. Some figures reduced in quality. Error in labelling of galaxies corrected in v2, science content unchanged
On Sustainability of a Dairy Sector in Crisis
Creators: name: Pappa, Ioanna
name: Illiopoulos, Constantine
name: Massouras, Theofilos
Publisher: name: International Journal on Food System Dynamics
Year: 2019
Subjects: relationship sustainability; resilience; innovation capacity; collective; dairy value chain; transparency; traceability

description: The European milk crisis accentuated the importance of sustainability in the dairy sector. In achieving sustainable
rural development, strategies focused on value chain creation, transparency and traceability are crucial. Sustainable relationships are needed to promote these aspects through collective action. This paper uses empirical evidence from Greece to contribute to the exploration of the sustainability concept within the agricultural sector and specifically the dairy sector. Based on empirical data, we analyse the overall sustainability of the dairy sector based on the innovation capacity of the sector and the sustainability of the relationship of the key actors, such as dairy farmers and processors. Additionally, a theoretical approach addressing ‘relationship sustainability’ and the factors affecting this construct is proposed. The preliminary findings underline a deficit in innovation capability and an inadequate sustainability
level of the relationships within the dairy sector. Policy implications are offered.
description: International Journal on Food System Dynamics, Vol 10, No 2 (2019)
Polarization enhanced two-photon excited fluorescence contrast by shaped laser pulses using a deformable phase plate
Creators: name: Bukhari, Syed Shakir Ashraf Shah
name: Halder, Ayan
name: Lindinger, Albrecht
Publisher: name: Freie Universität Berlin
Year: 2023
Subjects: subject: spatially and temporally tailored laser pulses
subject: polarization enhanced two-photon excited fluorescence
subject: polarization contrast method
subject: 500 Naturwissenschaften und Mathematik::530 Physik::539 Moderne Physik

description: We utilize spatially and temporally tailored laser pulses for polarization enhanced two-photon excited fluorescence contrasts of dyes. The shaped laser pulses are produced by first passing through a temporal pulse shaper and then through a two-dimensional spatial pulse shaper with deformable phase plates. Different spatial beam profiles are presented that demonstrate the potential of the spatial pulse shaper. Particularly, a polarization enhanced fluorescence contrast between two dyes is reported by utilizing specific phase shaping in perpendicular polarization directions. The tailored laser pulses are further modified by the deformable phase plate, and a polarization increased depth-dependent contrast is achieved. This spatial shaping for all polarization directions demonstrates the advantage of deformable phase plate spatial shapers compared to liquid crystals, where only one polarization direction can spatially be modified. The described polarization contrast method allows for three-dimensional scanning of probes and provides perspectives for biophotonic applications.
5D fuzzball geometries and 4D polar states
Creators: name: Raeymaekers, Joris
name: Van Herck, Walter
name: Vercnocke, Bert
name: Wyder, Thomas
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We analyze the map between a class of `fuzzball' solutions in five dimensions and four-dimensional multicentered solutions under the 4D-5D connection, and interpret the resulting configurations in the framework of Denef and Moore. In five dimensions, we consider Kaluza-Klein monopole supertubes with circular profile which represent microstates of a small black ring. The resulting four-dimensional configurations are, in a suitable duality frame, polar states consisting of stacks of D6 and anti-D6 branes with flux. We argue that these four-dimensional configurations represent zero-entropy constituents of a 2-centered configuration where one of the centers is a small black hole. We also discuss how spectral flow transformations in five dimensions, leading to configurations with momentum, give rise to four-dimensional D6 anti-D6 polar configurations with different flux distributions at the centers.
description: Latex, 36 pages, 2 figures. v2: typos corrected, references added, published version
Government - intermediary - university : the financial decision-making role of the Universities Council of British Columbia
Creators: name: Southern, Lee
Publisher: name: University of British Columbia
Year: 2010

description: This study examines the financial decision-making role of the Universities Council of British Columbia as an intermediary in government-university relations. It focusses on the major decisions taken by the Universities Council in the period 1974-1982 in exercising its statutory mandate for university financing. The purpose is two fold: to determine whether any problems exist for the Universities Council as an intermediary in the performance of its financial decision-making role; and, if problems exist, to recommend appropriate future courses of action to address them. This task is attempted, first, by making a review of the literature, to establish what has already been learned about the performance of intermediaries in a government-university setting and the nature of university costs and financial behaviour; second, by utilizing an elementary mode of analysis which involves the construction of simple, descriptive models representing some of the elements recognized to be present in the interaction between governments, universities, and intermediaries; third, by recounting the difficulties actually encountered by the Universities Council in recent decisions concerning (i) the annual recommendation to government about the universities' financial requirements, and (ii) the annual allocations to the universities for general operating purposes; and fourth, concluding with some suggestions concerning the Council's financial decision-making role in future. The examination discloses two basic problems associated with the Council's approaches for discharging its financial mandate. First, Council has not been able to formulate a fully satisfactory perception of the financial requirements of the universities. Second, in absence of such a perception the Council has not succeeded in developing an acceptable long term methodology for the allocation of the provincial operating grant for universities. In addition, the analysis suggests that an intermediary in higher education requires the retention of significant support from the other major entities in the system. The study concludes by suggesting that Council explore a more explicit planning approach to guide its financial decision-making role.
$β$-decay properties of some astrophysically important Sc-isotopes
Creators: name: Farooq, Fakeha
name: Nabi, Jameel-Un
name: Shehzadi, Ramoona
Publisher: name: arXiv
Year: 2025
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: In the late progressive stages of heavy stars, electron capture and $β^\pm$-decay are the governing processes. The weak rates are essential inputs for modeling the stages of high-mass stars before supernova explosions. As per results obtained from previous simulations, weak rates of Scandium isotopes contribute substantially in changing the lepton-to-baryon ratio ($Y_e$) of the nuclear matter in the core. In the present analysis, we report important $β^-$-decay properties of crucial Sc isotopes in an astrophysical environment with mass numbers $49 \leq A \leq 54$. The investigation includes Gamow-Teller (GT) strength distributions, terrestrial half-lives, and stellar rates of electron capture (EC) and $β^-$-decay reactions. The calculations are performed using the proton-neutron (pn) quasi-particle random phase approximation (QRPA) model over a wide temperature range ($10^7$-$3 \times 10^{10}$ K) and density range ($10^1 - 10^{11}$ g/cm$^3$). Additionally, we compare our calculated results with available experimental and theoretical data. A good agreement is observed between our calculated half-lives and experimentally measured values. Our weak $β^-$-decay and EC rates are compared with those from the Independent-Particle Model (IPM) and Large-Scale Shell Model (LSSM). At high stellar temperatures and densities, our calculated $β^-$-decay rates are smaller than those from the other models.
description: 13 Pages, 4 Figures, 4 Tables
Off-shell extended graphic rule and the expansion of Berends-Giele currents in Yang-Mills theory
Creators: name: Wu, Konglong
name: Du, Yi-Jian
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Tree-level color-ordered Yang-Mills (YM) amplitudes can be decomposed in terms of $(n-2)!$ bi-scalar (BS) amplitudes, whose expansion coefficients form a basis of Bern-Carrasco-Johansson (BCJ) numerators. By the help of the recursive expansion of Einstein-Yang-Mills (EYM) amplitudes, the BCJ numerators are given by polynomial functions of Lorentz contractions which are conveniently described by graphic rule. In this work, we extend the expansion of YM amplitudes to off-shell level. We define different types of off-shell extended numerators that can be generated by graphs. By the use of these extended numerators, we propose a general decomposition formula of off-shell Berends-Giele currents in YM. This formula consists of three terms: (i). an effective current which is expanded as a combination of the Berends-Giele currents in BS theory (The expansion coefficients are one type of off-shell extended numerators) (ii). a term proportional to the total momentum of on-shell lines and (iii). a term expressed by the sum of lower point Berends-Giele currents in which some polarizations and momenta are replaced by vectors proportional to off-shell momenta appropriately. In the on-shell limit, the last two terms vanish while the decomposition of effective current precisely reproduces the decomposition of on-shell YM amplitudes with the the expected coefficients (BCJ numerators in DDM basis). We further symmetrize these coefficients such that the Lie symmetries are satisfied. These symmetric BCJ numerators simultaneously satisfy the relabeling property of external lines and the algebraic properties (antisymmetry and Jacobi identity).
description: 55 pages, 21 figures, section 6 which discuss about the construction of BCJ numerators with Lie symmetries is added. Typos are corrected. More references are added
Additional file 3 of Cost burden and net monetary benefit loss of neonatal hypoglycaemia
Creators: name: Glasgow, Matthew J.
name: Edlin, Richard
name: Harding, Jane E.
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Neuroscience
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy
subject: Computational Biology

description: Additional file 3: Supplementary Table 2. Search strategy for costs (Medline and Embase).
A noise reduction method for force measurements in water entry experiments based on the Ensemble Empirical Mode Decomposition
Creators: name: Spinosa, Emanuele
name: Iafrati, Alessandro
Publisher: name: arXiv
Year: 2021
Subjects: subject: Signal Processing (eess.SP)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Physical sciences

description: In this paper a denoising strategy based on the EEMD (Ensemble Empirical Mode Decomposition) is used to reduce the background noise in non-stationary signals, which represent the forces measured in scaled model testing of the emergency water landing of aircraft, generally referred to as ditching. Ditching tests are performed at a constant horizontal speed of 12 m/s and a vertical velocity at the beginning of the impact of 0.45 m/s. The measured data are affected by a large amplitude broadband noise, which has both mechanical and electronic origin. Noise sources cannot be easily avoided or removed, since they are associated with the vibrations of the structure of the towing carriage and to the interaction between the measurement chain and the electromagnetic fields. The EEMD noise reduction method is based on the decomposition of the signal into modes and on its partial reconstruction using the residue, the signal-dominant modes and some further modes treated with a thresholding technique, which helps to retain some of the sharp features of the signal. The strategy is developed and tested first on a synthetic signal with a superimposed and known background noise. The method is then verified on the measurement of the inertial force acting on the fuselage when it is moving in air, as in this case the added mass is negligible and the denoised force should equal the product of the mass by the acceleration, both of them being known. Finally, the procedure is applied to denoise the forces measured during the actual ditching experiments. The results are superior to those obtained by other classical filtering methods, such as a moving average filter and a low-pass FIR filter, particularly due to the enhanced capabilities of the EEMD-denoising strategy here developed to preserve the sharp features of the signals and to reduce the residual low-frequency oscillations of spurious origin.
Long-term effects of pallidal deep brain stimulation in tardive dystonia: a follow-up of 5–14 years
Creators: name: Krause, Patricia
name: Kroneberg, Daniel
name: Gruber, Doreen
name: Koch, Kristin
name: Schneider, Gerd-Helge
name: Kühn, Andrea A.
Publisher: name: Charité - Universitätsmedizin Berlin
Year: 2022
Subjects: subject: Dystonia
subject: Tardive
subject: Pallidal DBS
subject: Long-term effects
subject: DBS and quality of life
subject: 600 Technik, Medizin, angewandte Wissenschaften::610 Medizin und Gesundheit::610 Medizin und Gesundheit

description: Introduction: Pallidal DBS is an established treatment for severe isolated dystonia. However, its use in disabling and treatment-refractory tardive syndromes (TS) including tardive dyskinesia and tardive dystonia (TD) is less well investigated and long-term data remain sparse. This observational study evaluates long-term effects of deep brain stimulation (DBS) of the globus pallidus internus (GPi) in patients with medically refractory TS. Methods: We retrospectively analyzed a cohort of seven TD patients with bilateral GPi-DBS. Involuntary movements, dystonia and disability were rated at long-term follow-up (LT-FU) after a mean of 122 +/- 33.2 SD months (range 63-171 months) and compared to baseline (BL), short-term (ST-FU; mean 6 +/- 2.0 SD months) and 4-year follow-up (4y-FU; mean 45 +/- 12.3 SD months) using the Abnormal Involuntary Movement Scale (AIMS) and the Burke-Fahn-Marsden Dystonia Rating Scale (BFMDRS), respectively. Quality of life and mood were evaluated using the SF36 and Beck Depression Index (BDI) questionnaires, respectively. Results: At LT-FU patients had improved by 73% +/- 14.2 SD in involuntary movements and 90% +/- 1.0 SD in dystonia. Mood had improved significantly whereas quality of life remained unchanged compared to baseline. No serious long-lasting stimulation-related adverse events (AEs) were observed. Three patients of this cohort presented without active stimulation and ongoing symptom relief at long-term follow-up after 3-10 years of continuous DBS. Conclusion: Pallidal DBS is a safe and effective long-term TD treatment. Even more interesting, three of our patients could stop stimulation after several years of DBS without serious relapse. Larger studies need to explore the phenomenon of ongoing symptom relief after DBS cessation.
Modifications of the Robertson Method for Calculating Correlated Color Temperature to Improve Accuracy and Speed
Creators: name: Baxter, Doug
name: Royer, Michael
name: Smet, Kevin
Publisher: name: Taylor & Francis
Year: 2023
Subjects: Biophysics
Biochemistry
Space Science
Cell Biology
Biotechnology
Chemical Sciences not elsewhere classified
Mathematical Sciences not elsewhere classified
Cancer

description: Correlated color temperature (CCT) is one of the principal metrics used in the engineering and specification of lighting. One of the most common methods used for calculating CCT was first proposed by Robertson in 1968. It utilizes a 31-row lookup table (LUT) based on isotemperature lines and a formula to interpolate CCT values between the lines. The original Robertson method is known to have modest errors in determining CCT, so many alternative methods demonstrating improved accuracy have been subsequently proposed. Rather than an entirely new method, this analysis proposes three changes to the original Robertson method: recalculation of the LUT with an increase in the resolution to an increment of 1%, a correction to address CCT errors in the region between isotherms with slopes of opposite sign, and the application of a Fibonacci or binary search algorithm to efficiently search the expanded LUT. These changes result in a CCT calculation method, denoted Robertson2022, that produces CCT errors less than 0.1 K throughout the range of 1,500 K to 40,000 K with Duv between −0.05 and 0.05.
To Contract or not Contract: Implications for Farmer–Buyer Trading Relation Performance
Creators: name: Keco, Remzi
name: Xhoxhi, Orjon
name: Skreli, Engjell
name: Imami, Drini
Publisher: name: International Journal on Food System Dynamics
Year: 2019
Subjects: contract farming; intermediary power; agrifood value chains; relationship performance; Albania

description: The paper analyses the value chain coordination of greenhouse vegetables in Albania, which has a strong export orientation. Based on a structured farm survey, the study constributes to the value chain literature of the vertical coordination of agricultural products by addressing the question of how chain governance modes differ in terms of exercised power and farmers’ satisfaction (an indicator of performance) with the trading relationship. The results point out that farmers operating with agreements show higher levels of satisfaction with the trading relationship than do farmers selling on the spot market. On the other hand, those operating with agreements are under higher levels of exercised power over product quality.
description: International Journal on Food System Dynamics, Vol 10, No 2 (2019)
The effect of inhomogeneous reionisation on the Lyman-$α$ forest power spectrum at redshift $z>4$: implications for thermal parameter recovery
Creators: name: Molaro, Margherita
name: Iršič, Vid
name: Bolton, James S.
name: Keating, Laura C.
name: Puchwein, Ewald
name: Gaikwad, Prakash
name: Haehnelt, Martin G.
name: Kulkarni, Girish
name: Viel, Matteo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We use the Sherwood-Relics suite of hybrid hydrodynamical and radiative transfer simulations to model the effect of inhomogeneous reionisation on the 1D power spectrum of the \Lya forest transmitted flux at redshifts $4.2\leq z \leq 5$. Relative to models that assume a homogeneous UV background, reionisation suppresses the power spectrum at small scales, $k \sim 0.1\rm\,km^{-1}\,s$ by $\sim 10$ per cent because of spatial variations in the thermal broadening kernel and the divergent peculiar velocity field associated with over-pressurised intergalactic gas. On larger scales, $k<0.03\rm\,km^{-1}\,s$, the power spectrum is instead enhanced by $10$--$50$ per cent by large scale spatial variations in the neutral hydrogen fraction. The effect of inhomogeneous reionisation must therefore be accounted for in analyses of forthcoming high precision measurements. We provide a correction for the Ly$α$ forest power spectrum at $4.1\leq z \leq 5.4$ that can be easily applied within other parameter inference frameworks using similar reionisation models. We perform a Bayesian analysis of mock data to assess the extent of systematic biases that may arise in measurements of the intergalactic medium if ignoring this correction. At the scales probed by current high resolution Ly$α$ forest data at $z>4$, $0.006 \rm \,km^{-1}\,s\leq k \leq 0.2 \rm\, km^{-1}\,s$, we find inhomogeneous reionisation does not introduce any significant bias in thermal parameter recovery for the current measurement uncertainties of $\sim 10$ per cent. However, for $5$ per cent uncertainties, $\sim 1σ$ shifts between the estimated and true parameters occur.
description: Accepted by MNRAS (21 November 2021), 20 pages, 11 figures