cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Rural Renaissance: an integral component of regional economic resilience
Creators: name: Fieldsend, Andrew F.
name: Fieldsend, Andrew F.
Publisher: name: Unknown
Year: 2013
Subjects: subject: Community/Rural/Urban Development
subject: rural employment
subject: labour supply
subject: enterprise
subject: economic dynamism
subject: European Union

description: Rural employment based on a broad mix of industry sectors contributes to the adaptive ability of regions. Research carried out in the rural localities of eight contrasting case study areas in Bulgaria, France, Hungary, Romania and the UK reviewed a number of non industry sector-specific factors that can influence rural employment potential. These can be grouped into two categories. Firstly, those that affect labour supply (via the workforce and labour market), and secondly, those that affect enterprise and economic dynamism. Notwithstanding the diversity of the case study areas, some general conclusions about the impacts of these factors on rural employment can be drawn. Commuting and migration flows are complex and are affected by a number of different driving forces, such as young people seeking education and training, people seeking jobs, and people (including retirees) seeking a better ‘quality of life’ in rural areas. Thus demographic trends can be both a consequence of (via out-migration owing to lack of jobs), or a driver of (via in-migrants constituting new markets) rural job and employment trends. The potential for job creation in rural areas is strongly influenced by the levels of entrepreneurship, innovation, skills, business support and training in the territory. Lower population densities can impede the delivery of education and skills training. As most European Union regions include both urban and rural localities, the implementation of a smart, sustainable and inclusive regional development strategy must include a specific ‘Rural Renaissance’ component if regional economic resilience is to be achieved.
description: http://dx.doi.org/10.7896/j.1225
Geometry of the Draco C1 Symbiotic Binary
Creators: name: Lewis, Hannah M.
name: Anguiano, Borja
name: Stassun, Keivan G.
name: Majewski, Steven R.
name: Arras, Phil
name: Sarazin, Craig L.
name: Li, Zhi-Yun
name: De Lee, Nathan
name: Troup, Nicholas W.
name: Prieto, Carlos Allende
name: Badenes, Carles
name: Cunha, Katia
name: Garcia-Hernandez, D. A.
name: Nidever, David L.
name: Palicio, Pedro A.
name: Simon, Joshua D.
name: Smith, Verne V.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Draco C1 is a known symbiotic binary star system composed of a carbon red giant and a hot, compact companion -- likely a white dwarf -- belonging to the Draco dwarf spheroidal galaxy. From near-infrared spectroscopic observations taken by the Apache Point Observatory Galactic Evolution Experiment (APOGEE-2), part of Sloan Digital Sky Survey IV, we provide updated stellar parameters for the cool, giant component, and constrain the temperature and mass of the hot, compact companion. Prior measurements of the periodicity of the system, based on only a few epochs of radial velocity data or relatively short baseline photometric observations, were sufficient only to place lower limits on the orbital period ($P > 300$ days). For the first time, we report precise orbital parameters for the binary system: With 43 radial velocity measurements from APOGEE spanning an observational baseline of more than 3 years, we definitively derive the period of the system to be $1220.0^{+3.7}_{-3.5}$ days. Based on the newly derived orbital period and separation of the system, together with estimates of the radius of the red giant star, we find that the hot companion must be accreting matter from the dense wind of its evolved companion.
description: 8 pages, 4 figures, 1 table. Accepted for publication in ApJL
Rural Development experiences in Germany: opportunities and obstacles in fostering smart places through LEADER
Creators: name: Pollermann, Kim
name: Raue, Petra
name: Schnaut, Gitta
name: Pollermann, Kim
name: Raue, Petra
name: Schnaut, Gitta
Publisher: name: Unknown
Year: 2013
Subjects: subject: Community/Rural/Urban Development
subject: rural development
subject: innovation
subject: LEADER
subject: funding
subject: networking
subject: smart

description: To discuss the impact of LEADER on improving ‘smart places’, the findings of the evaluation of Rural Development Programmes in Germany are presented. A survey of Local Action Group (LAG) members shows positive results about the quality of cooperation and communication within the LAG. Although there are obstacles for innovation, LEADER shows what is already possible in very different fields such as youth projects for qualifications, concepts for sustainable use of energy or innovative ways to organise social infrastructure. Relevant obstacles are bureaucratic settings. To use the opportunities, it is advisable not to set narrow limits for the size of the regions; the regions should decide on this themselves. Also, for the selection of projects no narrow administrative restrictions should apply to the kinds of projects that are eligible. To benefit from the original strengths of the LEADER approach, greater freedom for locally managed actions would be required.
description: http://dx.doi.org/10.7896/j.1228
The effect of age on students’ conceptions of agriculture
Creators: name: Fröhlich, Gabriele
name: Goldschmidt, Marlen
name: Bogner, Franz X.
name: Fröhlich, Gabriele
name: Goldschmidt, Marlen
name: Bogner, Franz X.
Publisher: name: Unknown
Year: 2013
Subjects: subject: Community/Rural/Urban Development
subject: Teaching/Communication/Extension/Profession
subject: agriculture literacy
subject: alternative conceptions
subject: school education
subject: context-related learning

description: Agricultural literacy is increasingly regarded as an important issue in sustainability education, yet little survey data regarding children and adolescents are available. We therefore surveyed two different age groups, fifth and sixth graders (n = 122) and tenth graders (n = 158) of German schools, about their conceptions of farmers’ duties, thereby identifying seven distinct conceptions. The conception most frequently mentioned by the younger students was animals (85.7 per cent) followed by processing (68.7 per cent), whereas the older students named the conception plants (76.0 per cent) most often, followed by animals (65.2 per cent). We found discrepancies in the sub-conceptions of animals between the two age groups, but none in plants. Ecology-related aspects (5.1 per cent) were only mentioned by the older students. We then examined the effect of a student having an agricultural family background on the conceptions named. Only 25 per cent of the younger students and none of the older students reported a past contact with farms through visitation or guided tours. We found that regardless of having an agricultural family background, most students lack an understanding of the impact of agriculture on the environment. Consequently, we conclude that agricultural education in German schools does not adequately teach modern agricultural practices or the importance of modern agricultural challenges.
description: http://dx.doi.org/10.7896/j.1301
Additional file 2 of A potential method of identifying stroke and other intracranial lesions in a prehospital setting
Creators: name: Saviluoto, Anssi
name: Harve-Rytsälä, Heini
name: Lääperi, Mitja
name: Kirves, Hetti
name: Jäntti, Helena
name: Nurmi, Jouni
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Neuroscience
subject: Pharmacology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Additional file 2. Regression analysis results
title: Detecting rubidium atoms with a nanofiber on a chip
Creators: name: Maître, Anne
Publisher: name: TU Wien
Year: 2017
Subjects: subject: Experimentalphysik
subject: Quantenoptik
subject: Atomphysik
subject: Quantentechnologie
subject: experimental physics
subject: quantum optics
subject: atomic physics
subject: quantum technologies

description: This work describes several measurements made on a atom-cloud of 87Rubidium with a tapered optical fiber. The atoms are loaded in a Magneto-Optical Trap, and detected with a Fabry-Perot cavity inside an optical nanofiber. The nanometer scale waist of the fiber leads to an evanescent light field, allowing the atomic photons to coupled into the fiber. Two Bragg gratings on both sides of the waist form a cavity for the atomic photons, enhancing their signal. The fiber is located just below an Atomchip, which leads to a great control over the cloud and the possibility of a one-dimensional trap matching the geometrical properties of the fiber. In this thesis, the atoms are detected through the cavity, independently from the trap. Furthermore, methods for the confirmation of detection of a single atom at the fiber were analized. An optical dipole force was then implemented in an usual nanofiber to repel the atoms from the fiber surface, by building a barrier of potential with a blue detuned light.
Distinguishing two single-mode Gaussian states by homodyne detection: An information-theoretic approach
Creators: name: Nha, Hyunchul
name: Carmichael, H. J.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: It is known that the quantum fidelity, as a measure of the closeness of two quantum states, is operationally equivalent to the minimal overlap of the probability distributions of the two states over all possible POVMs; the POVM realizing the minimum is optimal. We consider the ability of homodyne detection to distinguish two single-mode Gaussian states, and investigate to what extent it is optimal in this information-theoretic sense. We completely identify the conditions under which homodyne detection makes an optimal distinction between two single-mode Gaussian states of the same mean, and show that if the Gaussian states are pure, they are always optimally distinguished.
description: 6 pages, 4 figures, published version with a detailed discussion
Balancing the legal teetertotter : finding the appropriate weight for creator and user rights in cyber space
Creators: name: Cavalier, Kenneth Richard
Publisher: name: University of British Columbia
Year: 2010

description: This study represents a "quantum analysis" Law Reform approach to the adoption and evaluation of Canadian and international legal regimes aimed at the protection of intellectual property rights (IPRs) such as copyright, patent and trade-marks in cyberspace. Related intangible property rights such as privacy, publicity, performance, exhibition, moral rights, P2P file-sharing, "grey marketing" and protection against misappropriation are therefore considered. Beginning with a review of appellate level case law to identify areas of uncertainty and new developments in contemporary IP law, especially on the Internet, the history and the philosophical justifications for granting of traditional IPR protection of limited duration to creators are noted. The nature of the IPRs granted and the remedies available to enforce them are presented A review of current IP practice and remedies notes the trend of the Supreme Court of Canada to strive for balance among the stakeholders, both creators and users, of the intangible property. The post-1994 TRIPS agreement and globalization are discussed and the intersection between IP law, national sovereignty, and international trade through the WTO is considered. Canada’s capability to fashion its own legal response in the face of her international responsibilities and TRIPS pressure to harmonize IP law is assessed. A discussion of the merits of sui generis IP laws for use in the new digital knowledge-based economy environment rather than the extension of traditional IP laws to remove current uncertainties follows. The study concludes with a list of fifty recommendations for characteristics of any legislative solution proposed for IPR protection on the Internet. The requirement of a balanced regime is affirmed.
Old institutions, new challenges: the agricultural knowledge system in Hungary
Creators: name: Nemes, Gusztáv
name: High, Christopher
name: Nemes, Gusztáv
name: High, Christopher
Publisher: name: Unknown
Year: 2013
Subjects: subject: Teaching/Communication/Extension/Profession
subject: sustainable agriculture
subject: LINSA
subject: Hungary
subject: rural development

description: This paper explores and analyses the Hungarian institutional system for the creation and the transfer of knowledge in the field of agriculture and rural development. We consider the constitution and operation of the Agricultural Knowledge System (AKS) in Hungary, focussing on the formally organised aspects, and suggest that both the structure and content of the knowledge needed in the sector have significantly changed during the past decades. These changes, especially in relation to the sustainability of agriculture, pose significant challenges to traditional AKS institutions, which often have failed to change in line with the new requirements. Based on a literature review, interviews and a national stakeholder workshop, we offer an analysis of Hungarian AKS institutions, their co-ordination, co-operation and communication with each other and with Hungarian rurality, and of the arising issues and problems concerning the creation and the flow of knowledge needed for sustainable agriculture. We also briefly explore characteristics of emerging bottom-up structures, called LINSAS (learning and innovation networks for sustainable agriculture), and explore the significance of the findings in this article for the study of AKS in Europe. This article is based on preliminary results of the SOLINSA research project, supported by the European Union’s Seventh Framework Programme.
description: http://dx.doi.org/10.7896/j.1303
Origin of (2014) MU69-like Kuiper-belt contact binaries from wide binaries
Creators: name: Grishin, Evgeni
name: Malamud, Uri
name: Perets, Hagai B.
name: Wandel, Oliver
name: Schaefer, Christoph M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Following its flyby and first imaging the Pluto-Charon binary, the New Horizons spacecraft visited the Kuiper-Belt-Object (KBO) (486958) 2014 MU69 (Arrokoth). Imaging showed MU69 to be a contact-binary, made of two individual lobes connected by a narrow neck, rotating at low spin period (15.92 h), and having high obliquity (~98 deg), similar to other KBO contact-binaries inferred through photometric observations. The origin of such peculiar configurations is puzzling, and all scenarios suggested for the origins of contact-binaries fail to reproduce such properties and their likely high frequency. Here we show that semi-secular perturbations operating only on ultra-wide (~0.1-0.4 Hill-radius) KBO-binaries can robustly lead to gentle, slow-speed binary mergers at arbitrarily high obliquities, but low rotational velocities, that can reproduce MU69's (and similar oblique contact binaries) characteristics. Using N-body simulations, we find that ~15% of all ultra-wide binaries with cosine-uniform inclination distribution are likely to merge through this process. Moreover, we find that such mergers are sufficiently gentle as to only slightly deform the KBO shape, and can produce the measured rotation speed of MU69. The semi-secular contact-binary formation channel not only explains the observed properties of MU69, but could also apply for other Kuiper/asteroid belt binaries, and for Solar/extra-solar moon systems.
description: Submitted on 27 June 2019
title: „Was, wie, ich?“ – „Ja, doch, du!“ Prozesse von Schließung, Hierarchisierung und Öffnung in den akademischen Karrieren von Informatik-Doktorandinnen
Creators: name: Reimann, Swantje
name: Alfermann, Dorothee
Publisher: name: Humboldt-Universität zu Berlin
Year: 2021
Subjects: subject: Informatik
subject: Interviews
subject: Karriere
subject: Promotion
subject: Strukturelle Vergeschlechtlichung
subject: ddc:370

description: Mit zunehmender akademischer Karrierestufe sinkt der Anteil von Frauen im Bereich der Informatik. Wir fragen nach möglichen Zugängen von Frauen zum Studium und zur Promotion in der Informatik sowie nach Bedingungen der beruflichen Sozialisation. Es wurden 14 teilstrukturierte Interviews mit IT-Promovendinnen durchgeführt. Anhand von Erzählungen und Beschreibungen wurden förderliche und hinderliche Bedingungen als strukturelle Öffnungen, Schließungen und Hierarchisierungen identifiziert. Hierarchisierungen finden sich u. a. in der geschlechterbezogenen Zuteilung und Übernahme von Arbeitstätigkeiten. Trotz der Wahrnehmung von Geschlechtergerechtigkeit sind die Zugänge zu einer männlich dominierten Disziplin strukturell reglementiert. Öffnungsprozesse jedoch weisen auf Möglichkeiten des Vergessens von Geschlecht und in der Folge auch auf Möglichkeiten der strukturellen Durchsetzung von Gleichberechtigung hin.
Village shops: outdated or revived model? Relevance for local supply, social functions and economic viability
Creators: name: Kupper, Patrick
name: Eberhardt, Winfried
name: Kupper, Patrick
name: Eberhardt, Winfried
Publisher: name: Unknown
Year: 2013
Subjects: subject: Community/Rural/Urban Development
subject: grocery stores
subject: local supply
subject: social life
subject: profitability
subject: rural retailing
subject: community retail enterprises

description: An increasing number of villages in many countries do not have any local supplier at all. In the retail sector of Germany, the large supermarket companies require at least 5,000 inhabitants in the catchment area to run a shop. The aim of this paper is to assess the contribution of village shops to local supply and social life as well as about their economic viability. Therefore, findings from a telephone survey of approximately 100 shop operators in Germany are presented. The results show the limited supply and social function of the shops as well as their precarious economic situation. Many shops only offer a small range of goods so that the coverage of basic needs is difficult and they are mostly visited for supplementary purchases. Most village shops provide a snack area as a meeting place, but these are relatively seldom used. The findings indicate that permanent public and civic support is required to sustain many small shops in small villages. Because of the market conditions, however, public initiatives cannot halt the trend towards increasing numbers of ‘food deserts’; at best they can slow down the process. Where village shops cannot be sustained economically, home delivery services, mobile supermarkets or improved mobility services are feasible options for assuring local supply for less mobile people.
description: http://dx.doi.org/10.7896/j.1229
Implementación del enfoque prospectivo y orientativo en las actividades del OSINFOR
Creators: name: Delgado Neyra, Paulo César
name: Meza Rodríguez, Massiel Malena
name: Soto Romero, Mayra Stefany
name: Pajuelo Bustamante, Ricardo Enrique
name: Saenz Huamanchumo, Robert Daniel
Publisher: name: Zenodo
Year: 2021
Subjects: fiscalización forestal
fiscalización de fauna silvestre
procedimiento administrativo sancionador
fiscalización ambiental
derecho administrativo

description: Compendio de artículos académicos que incluyen análisis de la legislación forestal y de fauna silvestre, así como propuestas para fortalecer la fiscalización en dichas materias; en específico sobre la implementación de medidas preventivas durante el ejercicio de la función supervisora; la implementación de Guías de Transporte Forestal electrónicas interoperables; mejora de la efectividad en la supervisión y fiscalización de los títulos habilitantes; implementación del enfoque prospectivo y orientativo en la fiscalización forestal y de fauna silvestre; así como la responsabilidad solidaria del tercero con el titular del título habilitante en predios privados.
description: https://www.gob.pe/institucion/osinfor/informes-publicaciones/1775519-primer-curso-de-especializacion-profesional-en-fiscalizacion-forestal-y-de-fauna-silvestre-publicacion-de-trabajos-grupales
Additional file 1 of Evaluation of local and systemic immune responses in pigs experimentally challenged with porcine reproductive and respiratory syndrome virus
Creators: name: Salik Nazki
name: Khatun, Amina
name: Chang-Gi Jeong
name: Mattoo, Sameer Ul Salam
name: Gu, Suna
name: Sim-In Lee
name: Seung-Chai Kim
name: Ji-Hyo Park
name: Myoun-Sik Yang
name: Bumseok Kim
name: Choi-Kyu Park
name: Sang-Myeong Lee
name: Kim, Won-Il
Publisher: name: figshare
Year: 2020
Subjects: subject: Immunology
subject: FOS: Clinical medicine

description: Additional file 1. List of antibodies used in the flow cytometry analysis.
Application of spatial econometric approach in the evaluation of rural development policy: the case of measure Modernisation of agricultural holdings
Creators: name: Travnikar, Tanja
name: Juvančič, Luka
name: Travnikar, Tanja
name: Juvančič, Luka
Publisher: name: Unknown
Year: 2013
Subjects: subject: Agricultural and Food Policy
subject: Community/Rural/Urban Development
subject: Farm Management
subject: Land Economics/Use
subject: Productivity Analysis
subject: Rural development policy 2007-2013
subject: farm investment support
subject: modernisation of agricultural holdings
subject: agricultural productivity
subject: spatial econometrics

description: The paper analyses targeting and spatial impacts of investment support on agricultural holdings in Slovenia within the national Rural Development Plan for the period 2007-2013. The measure Modernisation of agricultural holdings primarily tackles the problem of low labour productivity in Slovenian agriculture. Achievement of the stated objective of productivity enhancement in agriculture is monitored by the relevant Common Monitoring and Evaluation Framework indicator, standard output (i.e. approximated revenue) per annual work unit SO/AWU. Municipalities (LAU2) are the territorial units of the analysis. Non-spatial and spatial econometric models are developed in order to determine to what extent the estimated labour productivity is affected by intensity of investment support and other factors (measure-specific variables, agricultural structures, socio-economic conditions and geographical conditions). Effectiveness of spatial targeting has been analysed by testing the assumption of a positive relationship between the intensity of implementation of the analysed measure and the productivity. The presence of spatial effects (spatial autocorrelation and spatial heterogeneity) has been examined by including the spatial weight matrix to the ordinary least squares regression. The results confirm a positive relationship between farm investment support and agricultural labour productivity and spatial spillovers in agricultural labour productivity.
description: http://dx.doi.org/10.7896/j.1307
A Dicke Type Model for Equilibrium BEC Superradiance
Creators: name: Pule, Joseph V.
name: Verbeure, Andre F.
name: Zagrebnov, Valentin A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We study the effect of electromagnetic radiation on the condensate of a Bose gas. In an earlier paper we considered the problem for two simple models showing the cooperative effect between Bose-Einstein condensation and superradiance. In this paper we formalise the model suggested by Ketterle et al in which the Bose condensate particles have a two level structure. We present a soluble microscopic Dicke type model describing a thermodynamically stable system. We find the equilibrium states of the system and compute the thermodynamic functions giving explicit formulae expressing the cooperative effect between Bose-Einstein condensation and superradiance.
Designing Quantum Networks Using Preexisting Infrastructure
Creators: name: Rabbie, Julian
name: Chakraborty, Kaushik
name: Avis, Guus
name: Wehner, Stephanie
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We consider the problem of deploying a quantum network on an existing fiber infrastructure, where quantum repeaters and end nodes can only be housed at specific locations. We propose a method based on integer linear programming (ILP) to place the minimal number of repeaters on such an existing network topology, such that requirements on end-to-end entanglement-generation rate and fidelity between any pair of end-nodes are satisfied. While ILPs are generally difficult to solve, we show that our method performs well in practice for networks of up to 100 nodes. We illustrate the behavior of our method both on randomly-generated network topologies, as well as on a real-world fiber topology deployed in the Netherlands.
description: 19 pages, 5 figures + 11 pages appendix
Physical interpretation of non-normalizable harmonic oscillator states and relaxation to pilot-wave equilibrium
Creators: name: Sen, Indrajit
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Non-normalizable states are difficult to interpret in the orthodox quantum formalism but often occur as solutions to physical constraints in quantum gravity. We argue that pilot-wave theory gives a straightforward physical interpretation of non-normalizable quantum states, as the theory requires only a normalized density of configurations to generate statistical predictions. In order to better understand such states, we conduct the first study of non-normalizable solutions of the harmonic oscillator from a pilot-wave perspective. We show that, contrary to intuitions from orthodox quantum mechanics, the non-normalizable eigenstates and their superpositions are bound states in the sense that the velocity field $v_y \to 0$ at large $\pm y$. We argue that defining a physically meaningful equilibrium density for such states requires a new notion of equilibrium, named pilot-wave equilibrium, which is a generalisation of the notion of quantum equilibrium. We define a new $H$-function $H_{pw}$, and prove that a density in pilot-wave equilibrium minimises $H_{pw}$, is equivariant, and remains in equilibrium with time. We prove an $H$-theorem for the coarse-grained $H_{pw}$, under assumptions similar to those for relaxation to quantum equilibrium. We give an explanation of the emergence of quantization in pilot-wave theory in terms of instability of non-normalizable states due to perturbations and environmental interactions. Lastly, we discuss applications in quantum field theory and quantum gravity, and implications for pilot-wave theory and quantum foundations in general.
description: Closely matches published version
Additional file 1 of A potential method of identifying stroke and other intracranial lesions in a prehospital setting
Creators: name: Saviluoto, Anssi
name: Harve-Rytsälä, Heini
name: Lääperi, Mitja
name: Kirves, Hetti
name: Jäntti, Helena
name: Nurmi, Jouni
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Neuroscience
subject: Pharmacology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Additional file 1. Diagnoses categorized as intracranial lesions
ESTUDO DE IMPACTO ECONÔMICO (EIS) PARA O SETOR AGROINDUSTRIAL CANAVIEIRO PAULISTA E ALAGOANO: CONJUNTURA E AGENDA DE PESQUISA.
Creators: name: Vian, Carlos Eduardo
name: Lima, Roberto Arruda De Souza
name: Lima, Araken Alves
name: Vian, Carlos Eduardo
name: Lima, Roberto Arruda De Souza
name: Lima, Araken Alves
Publisher: name: Unknown
Year: 2006
Subjects: subject: Crop Production/Industries
subject: Production Economics
subject: Açúcar e álcool
subject: Estratégias Competitivas
subject: Organização Industrial
subject: Emprego
subject: Meio-Ambiente
subject: Políticas Públicas

description: Este artigo apresenta uma aplicação do método EIS (Policy Research - Economic Impact Study) no complexo Agroindustrial Canavieiro. Parte-se do Paradigma Estrutura-Conduta- Desempenho, considerando as mudanças no ambiente de mercado e os impactos no comportamento de seus participantes. Observa-se que a estrutura da indústria teve uma evolução diferenciada nas duas regiões analisadas no pós desregulamentação estatal nos anos 1990. Foi favorável em São Paulo, com redução da concentração técnica e com aumento da competição, via segmentação da produção, diferenciação de produto e centralização de capitais. Em Alagoas ocorreu concentração técnica, conjugadas com as mesmas estratégias adotadas no Centro-Sul. O lado ruim deste processo foi o crescente desemprego, impactos ambientais negativos e a manutenção da concentração de renda no setor. Este panorama demonstra questões que ainda não estão consolidadas, são tendências do segmento que precisam ser acompanhadas para se analisar os seus desdobramentos futuros, visando à formulação de propostas de políticas consistentes de combate aos problemas do setor.
An upper limit on the spin of SgrA$^*$ based on stellar orbits in its vicinity
Creators: name: Fragione, Giacomo
name: Loeb, Abraham
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The spin of the massive black hole (BH) at the center of the Milky Way, SgrA$^*$, has been poorly constrained so far. We place an upper limit on the spin of SgrA$^*$ based on the spatial distribution of the S-stars, which are arranged in two almost edge-on disks that are located at a position angle approximately $\pm 45^\circ$ with respect to the Galactic plane, on a milliparsec scale around the Galactic Center. Requiring that the frame-dragging precession has not had enough time to make the S-star orbital angular momentum precess, the spin of the massive BH at the center of the Milky Way can be constrained to $χ\lesssim 0.1$.
description: 3 pages, 2 figures, accepted by ApJ Lett
La valoracion de empresas agroalimentarias: una extension de los modelos factoriales
Creators: name: Garcia, Fernando
name: Martinez, Francisco Guijarro
name: Clemente, Ismael
name: Garcia, Fernando
name: Martinez, Francisco Guijarro
name: Clemente, Ismael
Publisher: name: Unknown
Year: 2008
Subjects: subject: Agribusiness
subject: Agricultural Finance
subject: Marketing
subject: FOS: Economics and business
subject: valoracion de empresas agroalimentarias
subject: modelos factoriales
subject: multicolinealidad
subject: analisis de los residuos
subject: indice de condicion
subject: agricultural firm valuation
subject: factor models
subject: multicollinearity
subject: residual analysis
subject: condition index

description: En este trabajo se propone una extension de los modelos de valoracion factoriales. A diferencia del enfoque clasico donde el valor bursatil solo es considerado en la ultima fase del procedimiento de valoracion, la nueva propuesta lo incorpora con anterioridad al propio uso del analisis factorial. Con ello se consigue que la agrupacion de las variables en factors gane en eficiencia, al agrupar las variables no relevantes en un unico factor. En el proceso se empelan diferentes tecnicas estadisticas ademas del analisis factorial, como la regresion lineal simple y la regresion stepwise. Para el contraste empirico de esta propuesta y su comparacion con la metodologia tradicional referenciada en la literatura, se ha disenado una base de datos con informacion bursatil y contable de empresas agroalimentarias cotizadas en bolsas europeas durante el ano 2005...Our work proposes the extension of factor valuation models. Unlike classical models in which the market value is only incorporated at the very final step of valuation, our new approach incorporates this variable in the first step prior to the factor analysis. Doing so the association of variables is more efficient, since non-relevant variables with factor analysis, such as simple regression and stepwise regression. A database composed by market and financial information from agrifood firms quoted in European markets during 2005 has been designed in order to empirically contrast our methodology and compare it with the traditional one.
Observational constraints on the origin of the elements. III. Evidence for the dominant role of sub-Chandrasekhar SN Ia in the chemical evolution of Mn and Fe in the Galaxy
Creators: name: Eitner, Philipp
name: Bergemann, Maria
name: Hansen, Camilla Juul
name: Cescutti, Gabriele
name: Seitenzahl, Ivo
name: Larsen, Soeren
name: Plez, Bertrand
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The abundance ratios of manganese to iron in late-type stars across a wide metallicity range place tight constraints on the astrophysical production sites of Fe-group elements. In this work, we investigate the chemical evolution of Mn in the Milky Way galaxy using high-resolution spectroscopic observations of stars in the Galactic disc and halo stars, as well as a sample of globular clusters. Our analysis shows that local thermodynamic equilibrium (LTE) leads to a strong imbalance in the ionisation equilibrium of Mn I and Mn II lines. Mn I produces systematically (up to 0.6 dex) lower abundances compared to the Mn II lines. Non-local thermodynamic equilibrium (NLTE) radiative transfer satisfies the ionisation equilibrium across the entire metallicity range, -3 < [Fe/H] < -1, leading to consistent abundances from both ionisation stages of the element. We compare the NLTE abundances with Galactic Chemical Evolution models computed using different sources of type Ia and type II supernova (SN Ia and SN II) yields. We find that a good fit to our observations can be obtained by assuming that a significant (~ 75%) fraction of SNe Ia stem from a sub-Chandrasekhar (sub-Ch) channel. While this fraction is larger than that found in earlier studies (~ 50%), we note that we still require ~ 25% near-Ch SNe Ia to obtain solar [Mn/Fe] at [Fe/H] = 0. Our new data also suggest higher SN II Mn yields at low metallicity than typically assumed in the literature.
description: 8 pages, A&A in press
Un analisis de la eficiencia socioeconomico del agua en el regadio andaluz
Creators: name: Ferrero, Noelina
name: Martinez, M. Teresa
name: Martos, Juan
name: Ferrero, Noelina
name: Martinez, M. Teresa
name: Martos, Juan
Publisher: name: Unknown
Year: 2008
Subjects: subject: Environmental Economics and Policy
subject: Production Economics
subject: agua
subject: escasez
subject: regadio
subject: productividad
subject: eficiencia y coste
subject: water
subject: scarcity
subject: irrigation
subject: productivity
subject: efficiency
subject: cost

description: La escasez criciente del agua, no debida exclusivamente a causas climaticas, exige que este recurso sea gestionado con criterios socioeconomicos cuando es utilizado en actividades de este caracter; por ello en este trabajo, para los anos 1996 y 2002, se han calculado las productividades bruta y neta por hectarea y por metro cubico del agua en el ergadio de las cinco cuencas hidrograficas en las que se distribuye el territoria andaluz, y en los veinticinco sistemas de explotacion de recursos existentes; de esta manera es posible hacer estudios comparativos que permitan conocer las causes modificables o no, que motican las diferencias en la eficiencia tecnica y economica en el uso del agua. Ademas, se han comparado estas productividades con el coste del agua; se ha determinado tambien el empleo generado por la agricultura de regadio en los distintos ambitos...The increasing shortage of water, which is not only due to climatic causes, means that this resource must be managed with socio-economic criteria when it is used in activities of this nature; therefore, in this work, for the years 1996 and 2002 we have calculated the gross and net productivity per hectare and per cubic meter of water for the irrigation of the five hydographical basins in which the territory of Andalusia is divided and the twenty five current systems of exploitation of these resources; therefore,it is possible to carry out comparative studies which can show the causes, whether they can be modified or not, which are behind the differences in technical and economic efficiency in water use. Furthermore, we have compared productivity in the cost of water; we have also determined the employment generated by irrigation agriculture in different areas.
Sliding friction between an elastomer network and a grafted polymer layer: the role of cooperative effects
Creators: name: Vilmin, Thomas
name: Raphael, Elie
Publisher: name: arXiv
Year: 2004
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We study the friction between a flat solid surface where polymer chains have been end-grafted and a cross-linked elastomer at low sliding velocity. The contribution of isolated grafted chains' penetration in the sliding elastomer has been early identified as a weakly velocity dependent pull-out force. Recent experiments have shown that the interactions between the grafted chains at high grafting density modify the friction force by grafted chain. We develop here a simple model that takes into account those interactions and gives a limit grafting density beyond which the friction no longer increases with the grafting density, in good agreement with the experimental data
description: Submitted to Europhys. Letters
Research Output Lifecycle - Guidance for the Research Output Management Planning (ROMPi)
Creators: name: Della Chiesa, Stefano
Publisher: name: Zenodo
Year: 2024
Subjects: Research Data Management
Data Management Planning
Guidance

description: Research Data Management (RDM) provides the strategies, guidelines, and measures to manage research outputs. Like a Jigsaw, RDM requires multiple pieces of multidisciplinary knowledge and competencies. Data Management Planning (DMP) is the formal operational tool to handle this complexity dynamically and in a structured way, ensuring compliance with policies and best practices. The Research Output Lifecycle refers to the stages through which research output evolves, from conception to dissemination. A DMP might be considered as a different form of a data lifecycle. Della Chiesa et al., 2024 introduced the concept of Research Output Management Planning (ROMPi), where the research output life cycle plays a fundamental role. Hence, this document is a reference toolkit tailored for the Research Output Management Planning (ROMPi) approach to address policy compliance FAIR research output management best practices throughout the project lifecycle.

 

Check also the ROMPi Template
MOSEL Survey: Tracking the Growth of Massive Galaxies at 2
Creators: name: Gupta, Anshu
name: Tran, Kim-Vy
name: Cohn, Jonathan
name: Alcorn, Leo Y.
name: Yuan, Tiantian
name: Rodriguez-Gomez, Vicente
name: Harshan, Anishya
name: Forrest, Ben
name: Kewley, Lisa J.
name: Glazebrook, Karl
name: Straatman, Caroline M.
name: Kacprzak, Glenn G.
name: Nanayakkara, Themiya
name: Labbé, Ivo
name: Papovich, Casey
name: Cowley, Michael
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We use K-band spectroscopic data from the Multi-Object Spectroscopic Emission Line (MOSEL) survey to analyze the kinematic properties of galaxies at z>3. Our sample consists of 34 galaxies at 3.0 10.2 at z > 3 have 56 +/- 21 km/s lower integrated velocity dispersion compared to galaxies at z ~ 2 of similar stellar mass. Massive galaxies at z > 3 have either a flat or declining star formation history (SFH), whereas similar stellar mass galaxies at z~2.0 exhibit a slight peak in the past 500 Myrs. Comparing with the IllustrisTNG cosmological simulation, we find that (i) the dynamical mass of massive galaxies in simulations (log(M_star) > 10.0) increases by ~0.1 dex at a fixed stellar mass between z=2.0-3.0, and (ii) dynamical mass growth is coupled with a rapid rise in the ex-situ stellar mass fraction (stars accreted from other galaxies) for massive galaxies at z < 3.5. We speculate that the rising contribution of ex-situ stellar mass to the total stellar mass growth of massive galaxies is driving the higher integrated velocity dispersion and rising SFHs of massive galaxies at z~2.0 compared to galaxies of similar stellar masses at z > 3.
description: 19 pages, 9 figures, Accepted for publication in the Astrophysical Journal
Research Output Lifecycle - Guidance for the Research Output Management Planning (ROMPi)
Creators: name: Della Chiesa, Stefano
Publisher: name: Zenodo
Year: 2024
Subjects: Research Data Management
Data Management Planning
Guidance

description: This Zenodo record is supplementary material to Della Chiesa & Sikder (2024), which introduced the Research Output Management Planning (ROMPi) concept.

Check also the ROMPi Template

 

Hence, this document is a reference toolkit tailored for the Research Output Management Planning (ROMPi) approach to address policy compliance FAIR research output management best practices throughout the project lifecycle.

Research Data Management (RDM) provides the strategies, guidelines, and measures to manage research outputs. Like a Jigsaw, RDM requires multiple pieces of multidisciplinary knowledge and competencies. Data Management Planning (DMP) is the formal operational tool to handle this complexity dynamically and in a structured way, ensuring compliance with policies and best practices. The Research Output Lifecycle refers to the stages through which research output evolves, from conception to dissemination. A DMP might be considered as a different form of a data lifecycle.
Homogeneous Sasakian and 3-Sasakian Structures from the Spinorial Viewpoint
Creators: name: Hofmann, Jordan
Publisher: name: arXiv
Year: 2022
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 22E46, 22F30, 53C25, 53C27, 53C30

description: We give a spinorial construction of Sasakian and 3-Sasakian structures in arbitrary dimension, generalizing previously known results in dimensions 5 and 7. Furthermore, we obtain a complete description of the space of invariant spinors on a homogeneous 3-Sasakian space, and show that it is spanned by the Clifford products of invariant differential forms with a certain invariant Killing spinor. Finally, we give a basis for the space of invariant Riemannian Killing spinors on a homogeneous 3-Sasakian space, and determine which of these induce the homogeneous 3-Sasakian structure.
description: Accepted for publication in Advances in Mathematics. V2: Incorporated feedback from the anonymous reviewer, updates and corrections to some results and proofs, improvements in clarity and exposition
Dark Matter Halo Sparsity of Modified Gravity Scenarios
Creators: name: Corasaniti, P. S.
name: Giocoli, C.
name: Baldi, M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Modified Gravity (MG) scenarios have been advocated to account for the dark energy phenomenon in the universe. These models predict departures from General Relativity on large cosmic scales that can be tested through a variety of probes such as observations of galaxy clusters among others. Here, we investigate the imprint of MG models on the internal mass distribution of cluster-like halos as probed by the dark matter halo sparsity. To this purpose we perform a comparative analysis of the properties of the halo sparsity using N-body simulation halo catalogs of a standard flat $Λ$CDM model and MG scenarios from the DUSTGRAIN-pathfinder simulation suite. We find that the onset of the screening mechanism leaves a distinct signature in the redshift evolution of the ensemble average halos sparsity. Measurements of the sparsity of galaxy clusters from currently available mass estimates are unable to test MG models due to the large uncertainties on the cluster masses. We show that this should be possible in the future provided large cluster samples with cluster masses determined to better than $30\%$ accuracy level.
description: 8 pages, 7 figures. Various typos corrected. Submitted to PRD
Viscoelastic properties of attractive and repulsive colloidal glasses
Creators: name: Puertas, Antonio M.
name: Zaccarelli, Emanuela
name: Sciortino, Francesco
Publisher: name: arXiv
Year: 2004
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We report a numerical study of the shear viscosity and the frequency dependent elastic moduli close to dynamical arrest for a model of short-range attractive colloids, both for the repulsive and the attractive glass transition. Calculating the stress autocorrelation functions, we find that density fluctuations of wavevectors close to the first peak in the structure factor control the viscosity rise on approaching the repulsive glass, while fluctuations of larger wavevectors control the viscosity close to the attractive glass. On approaching the glass transition, the viscosity diverges with a power law with the same exponent as the density autocorrelation time.
Additional file 1 of Frameshift peptides alter the properties of truncated FUS proteins in ALS-FUS
Creators: name: Haiyan An
name: Meritens, Camille Rabesahala De
name: Buchman, Vladimir L.
name: Shelkovnikova, Tatyana A.
Publisher: name: figshare
Year: 2020
Subjects: subject: Biophysics
subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology

description: Additional file 1 : Table S1. Reported mutations in the FUS gene resulting in a frameshift tail. Figure S1. The effect of C-terminal truncations on stress granule recruitment of FUS protein. Figure S2. The effect of frameshift peptides on distribution and stability of GFP protein. Materials and methods
Statistics did not prove that the Huanan Seafood Wholesale Market was the early epicenter of the COVID-19 pandemic
Creators: name: Stoyan, Dietrich
name: Chiu, Sung Nok
Publisher: name: arXiv
Year: 2022
Subjects: subject: Applications (stat.AP)
subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: In a recent prominent study Worobey et al.\ (2022, Science, 377, pp.\ 951--9) purported to demonstrate statistically that the Huanan Seafood Wholesale Market was the epicenter of the early COVID-19 epidemic. We show that this statistical conclusion is invalid on two grounds: (1) The assumption that a centroid of early case locations or another simply constructed point is the origin of an epidemic is unproved. (2) A Monte Carlo test used to conclude that no other location than the seafood market can be the origin is flawed. Hence, the question of the origin of the pandemic has not been answered by their statistical analysis.