cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
NO TRAIN NO GRAIN: THE IMPACT OF INCREASED DEMAND FOR RAIL SERVICES BY THE ENERGY SECTOR ON WHEAT PRICES—A PRELIMINARY ANALYSIS
Creators: name: Ortiz, Laura Villegas
name: Ortiz, Laura Villegas
Publisher: name: Unknown
Year: 2016
Subjects: subject: Agricultural and Food Policy
subject: Crop Production/Industries
subject: Demand and Price Analysis
subject: Financial Economics
subject: Production Economics
subject: Resource /Energy Economics and Policy
subject: Transportation Costs
subject: Wheat Prices
subject: Rail Services
subject: Oil Boom
subject: Pipeline

description: Rail service is often the most cost-effective available alternative for shipping agricultural commodities in the Upper Midwest Region of the United States. The recent energy boom has created new competition for the use of shipping services. As oil has taken up freight space on railways, it has become more costly for farmers in states like Minnesota, Montana, North Dakota and South Dakota to reach grain markets, resulting in millionaire losses. Using oil nearby prices as the proxy, I study three particular effects of increased competition for rail services. First, I use national measures to study the impact of track congestion on wheat basis. Then, I examine how the expansion of the energy sector may have had different effects on prices received by wheat producers in the Midwest and in the Gulf Coast. Finally, I investigate whether the construction of new regional liquid pipeline networks is linked to regional wheat prices
Additional file 1 of Perioperative imaging in patients treated with resection of brain metastases: a survey by the European Association of Neuro-Oncology (EANO) Youngsters committee
Creators: name: Kiesel, Barbara
name: Thomé, Carina M.
name: Weiss, Tobias
name: Asgeir S. Jakola
name: Darlix, Amélie
name: Pellerino, Alessia
name: Furtner, Julia
name: Kerschbaumer, Johannes
name: Freyschlag, Christian F.
name: Wick, Wolfgang
name: Preusser, Matthias
name: Widhalm, Georg
name: Berghoff, Anna S.
Publisher: name: figshare
Year: 2020
Subjects: Medicine
Cell Biology
Neuroscience
Cancer

description: Additional file 1: Survey of the EANO Youngster - "Evaluation of perioperative management of surgically treated brain metastases".
The Zwicky Transient Facility Catalog of Periodic Variable Stars
Creators: name: Chen, Xiaodian
name: Wang, Shu
name: Deng, Licai
name: de Grijs, Richard
name: Yang, Ming
name: Tian, Hao
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: The number of known periodic variables has grown rapidly in recent years. Thanks to its large field of view and faint limiting magnitude, the Zwicky Transient Facility (ZTF) offers a unique opportunity to detect variable stars in the northern sky. Here, we exploit ZTF Data Release 2 (DR2) to search for and classify variables down to r ~ 20.6 mag. We classify 781,602 periodic variables into 11 main types using an improved classification method. Comparison with previously published catalogs shows that 621,702 objects (79.5%) are newly discovered or newly classified, including ~700 Cepheids, ~5000 RR Lyrae stars, ~15,000 Delta Scuti variables, ~350,000 eclipsing binaries, ~100,000 long-period variables, and about 150,000 rotational variables. The typical misclassification rate and period accuracy are on the order of 2% and 99%, respectively. 74% of our variables are located at Galactic latitudes, $|b|<10^\circ$. This large sample of Cepheids, RR Lyrae, Delta Scuti stars, and contact (EW-type) eclipsing binaries is helpful to investigate the Galaxy's disk structure and evolution with an improved completeness, areal coverage, and age resolution. Specifically, the northern warp and the disk's edge at distances of 15--20 kpc are significantly better covered than previously. Among rotational variables, RS Canum Venaticorum and BY Draconis-type variables can be separated easily. Our knowledge of stellar chromospheric activity would benefit greatly from a statistical analysis of these types of variables.
description: accepted by ApJS. The full catalog and LCs can be accessed at http://variables.cn:88/ztf/ or doi.org/10.5281/zenodo.3886372
Diferenciación de productos en el sector ganadero
Creators: name: Lanfranco, Bruno
name: Helguera, Lorenzo
name: Lanfranco, Bruno
name: Helguera, Lorenzo
Publisher: name: Unknown
Year: 2005
Subjects: subject: Agribusiness
subject: Consumer/Household Economics
subject: Demand and Price Analysis
subject: Livestock Production/Industries
subject: marketing
subject: beef
subject: asymetric information

description: En mercados competitivos como los que caracterizan a los productos de la ganadería (carne vacuna, carne ovina y lana), existen oportunidades para las estrategias de valorización basadas en la diferenciación de productos. En tanto que la calidad es un concepto, hablar de buena o mala calidad supone un juicio de valor que depende de la percepción del cliente. Esto significa que la diferenciación deberá abarcar, no solamente los aspectos físicos del producto, sino también los intangibles. El mayor énfasis deberá ponerse en aquellas características que representan valores que el cliente aprecia y que se dan por efecto de una demanda que proviene del consumidor final. La asimetría de información entre los diversos agentes que participan en la cadena sitúa a la información como un punto neurálgico. Las acciones a desarrollar deberán basarse en un sistema de señales eficaz y efectivo que disminuya, en la medida de lo posible, las divergencias informativas. El éxito de cualquier iniciativa de este tipo dependerá en gran medida del esfuerzo coordinado de los protagonistas principales (productores e industriales), a distintos niveles. El resto de la sociedad, a través del sector público, estará dispuesta a sumarse al esfuerzo para fortalecer la estrategia con una visión de país, siempre que parte de los beneficios incrementales se trasladen también, en última instancia, a toda la comunidad. In competitive markets, such as those that characterize the livestock products (beef, sheep meat, and wool), there exist opportunities for adding-value strategies based on product differentiation. Because quality is a concept, speaking about good or bad quality involves a value judgment that depends on the perception of the client. This means that concept of differentiation should cover not only the physical aspects of the product, but also the intangible ones. The main emphasis should be on those features that represent values that customers appreciate because they reflect the demand of the final consumer. The information asymmetry faced by the various actors involved in the chain puts this issue as a neuralgic point. The actions to be developed must rely on a system of efficient and effective signals, in order to diminish informative divergences as much as possible. The success of any initiative of this type will depend, in a large extent, on the coordinated effort of the main actors of the industry (producers and manufacturers), at different levels. The rest of the society, through the public sector, will be ready to join the effort of strengthening the strategy with a country vision, if part of the incremental benefits are transferred to the whole community.
Financial performance configurations
Creators: name: Langemeier, Michael R.
name: Langemeier, Michael R.
Publisher: name: Unknown
Year: 2011
Subjects: subject: Farm Management
subject: Livestock Production/Industries
subject: Production Economics
subject: Operating Profit Margin Ratio
subject: Farm Growth

description: The purpose of this paper is to examine the financial performance of a sample of crop/beef cow farms using the operating profit margin ratio and farm growth as relevant measures. Farms were divided into four performance categories: low profit/low growth; low profit/high growth; high profit/low growth; and high profit/high growth. Approximately 36 percent of the farms had above average operating profit margin ratios. Of this group, approximately 54 percent had a below average growth rate in the beef cow herd and the remaining 46 percent had an above average growth rate in the beef cow herd. Characteristics of these two groups were similar. However, interestingly, the farms with the above average growth rate in the beef cow herd, also had a higher growth rate in crop hectares from 2002 to 2009.
Full-sky bispectrum in redshift space for 21cm intensity maps
Creators: name: Durrer, Ruth
name: Jalilvand, Mona
name: Kothari, Rahul
name: Maartens, Roy
name: Montanari, Francesco
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We compute the tree-level bispectrum of 21cm intensity mapping after reionisation. We work in the directly observable angular and redshift space, focusing on equal-redshift correlations and thin redshift bins, for which the lensing contribution is negligible. We demonstrate the importance of the contributions from redshift-space distortions which typically dominate the result. Taking into account the effects of telescope beams and foreground cleaning, we estimate the signal to noise and show that the bispectrum is detectable by both SKA in single-dish mode and HIRAX in interferometer mode, especially at the lower redshifts in their respective ranges.
description: Version accepted by JCAP
Additional file 1 of Polygonum multiflorum extract support hair growth by elongating anagen phase and abrogating the effect of androgen in cultured human dermal papilla cells
Creators: name: Shin, Jae Young
name: Yun-Ho Choi
name: Jaeyoon Kim
name: Park, Se Young
name: Nam, You Jin
name: Lee, So Young
name: Jeon, Jeong Hoon
name: Jin, Mu Hyun
name: Sanghwa Lee
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Molecular Biology
subject: Physiology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Hematology
subject: Plant Biology

description: Additional file 1.
Multiple exchanges in lepton pair production in high--energy heavy ion collisions
Creators: name: Bartos, E.
name: Gevorkyan, S. R.
name: Kuraev, E. A.
name: Nikolaev, N. N.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The recent analysis of nuclear distortions in DIS off nuclei revealed a breaking of the conventional hard factorization for multijet observable. The related pQCD analysis of distortion effects for jet production in nucleus-nucleus collisions is as yet lacking. As a testing ground for such an analysis we consider the Abelian problem of higher order Coulomb distortions of the spectrum of lepton pairs produced in peripheral nuclear collisions. We report an explicit calculation of the contribution to the lepton pair production in the collision of two photons from one nucleus with two photons from the other nucleus, $2γ+ 2γ\to \m{l}^+\m{l}^-$. The dependence of this amplitude on the transverse momenta has a highly nontrivial form the origin of which can be traced to the mismatch of the conservation of the Sudakov components for the momentum of leptons in the Coulomb field of the oppositely moving nuclei. The result suggests that the familiar eikonalization of Coulomb distortions breaks down for the oppositely moving Coulomb centers, which is bad news from the point of view of extensions to the pQCD treatment of jet production in nuclear collisions. On the other hand, we notice that the amplitude for the $2γ+ 2γ\to \m{l}^+\m{l}^-$ process has a logarithmic enhancement for the lepton pairs with large transverse momentum, which is absent for $nγ+ mγ\to \m{l}^+\m{l}^-$ processes with $m,n > 2$. We discuss the general structure of multiple exchanges and show how to deal with higher order terms which cannot be eikonalized.
description: 20 pages, 7 figures, REVTeX4 format
A agricultura familiar em Portugal: rupturas e continuidades
Creators: name: Carmo, Renato Miguel Do
name: Carmo, Renato Miguel Do
Publisher: name: Unknown
Year: 2010
Subjects: subject: Agribusiness
subject: Rural
subject: multiple activities
subject: family farming
subject: Portugal

description: The main goal of this paper is to produce a critical analysis regarding the conception of multiple activities in the Portuguese rural society. This work questions the classic vision of the country that delineates a rigid territorial and sociological divisions (for instance, the distinction between Northern and the Southern region) from which it tends to characterize different types of agriculture. Considering this conception, the paper proposes a different perspective that is capable to integrate differences and resemblances, between some of the social and the economic aspects that have redefined the family organization and their work activities.
Non-equilibrium statistical mechanics of the turbulent energy cascade: irreversibility and response functions
Creators: name: Cocciaglia, Niccolò
name: Cencini, Massimo
name: Vulpiani, Angelo
Publisher: name: arXiv
Year: 2023
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: The statistical properties of turbulent flows are fundamentally different from those of systems at equilibrium due to the presence of an energy flux from the scales of injection to those where energy is dissipated by the viscous forces: a scenario dubbed "direct energy cascade". From a statistical mechanics point of view, the cascade picture prevents the existence of detailed balance, which holds at equilibrium, e.g. in the inviscid and unforced case. Here, we aim at characterizing the non-equilibrium properties of turbulent cascades in a shell model of turbulence by studying an asymmetric time-correlation function and the relaxation behavior of an energy perturbation, measured at scales smaller or larger than the perturbed one. We shall contrast the behavior of these two observables in both non-equilibrium (forced and dissipated) and equilibrium (inviscid and unforced) cases. Finally, we shall show that equilibrium and non-equilibrium physics coexist in the same system, namely at scales larger and smaller, respectively, of the forcing scale.
description: REVTeX 4.2, 15 pages, 10 figures
A construção do mercado para o café em Alto Paraíso de Goiás
Creators: name: Campos, Jurema Iara
name: Valente, Ana Lucia Eduardo Farah
name: Campos, Jurema Iara
name: Valente, Ana Lucia Eduardo Farah
Publisher: name: Unknown
Year: 2010
Subjects: subject: Agribusiness
subject: Family farming
subject: coffee
subject: territorial approach
subject: agribusiness
subject: tourism

description: This work presents main results of how inhabitants of Alto Paraíso de Goias are seeking alternatives to sustainable development through the implantation, by Embrapa, of a project about the rescue of coffee. Mining and farming activities were developed in the region until its main activity turned into tourism in 1960, with the creation of the National Park of the Chapada dos Veadeiros, and inauguration of Brasilia. In 2000, flow of tourists dropped due to problems related to public health, resulting in the stagnation of local economy. Over the last years, family producers woken up for the existence of a coffee that can be sold in niche markets for special coffees - organic and from defined origins - and counted on Embrapa to develop the research project. The study revealed that by unveiling values - history, culture and traditions -, it is possible to establish more efficient strategy for search in the market, from revealed experience in concrete job and producers culture. In addition, it revealed that rural development in that region must be sought through the development of activities of the new rurality and the implementation of a territorial approach.
Adapting economic games for organisation of artisanal and small scale gold miners in Tanzania
Creators: name: Scoble, Jemma
Publisher: name: University of British Columbia
Year: 2010

description: This thesis analyses cooperation and trust as key components of organization in artisanal and small-scale mining. Significant economic, health and social issues are associated with artisanal and small-scale mining (ASM) activities. Work conducted as part of the GEF/UNDP/UNIDO Global Mercury Project has illuminated opportunities to improve the situation for artisanal and small-scale miners and their communities through enhanced organizational structures. Improvements in organization can present opportunities for groups of miners to access technology and finance, conduct work that is safe and in accordance with best practices, increase productivity and earnings, and reduce the numerous social impacts associated with involvement in the sub-sector. Upon identification of barriers to improved organisation in ASM, research by the GMP concluded that distrust and uncooperativeness among miners were two of the most significant concerns to address prior to introducing organizational alternatives. It was determined that in order to promote pro-social and trusting behaviours within ASM groups, the current nature of these components should be defined. It was believed that the adaptation of economic games to ASM contexts could contribute to an understanding of the nature of trust and cooperation. In addition, this could also provide evidence to either support reasons for distrust between groups of miners or highlight a proclivity towards trust and cooperation. It was also believed that economic games could be applied as an educational tool in the promotion of cooperative behaviours by illustrating in a tangible, direct and interactive manner the benefits of cooperation and trust over the pursuit of self interest. With current lack of organization being attributed in part to anti-social and individualistic behaviour among miners, this work demonstrates how economic games can serve as analogies of situations in ASM whereby benefits to both individuals and groups can be derived through cooperation. The following work is an examination of these applications of economic games in ASM in Tanzania.
String loop vibration around Schwarzschild black hole
Creators: name: Churilova, Mariia
name: Kološ, Martin
name: Stuchlík, Zdeněk
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: String loop vibrations in a central plane of a Schwarzschild black hole are investigated for various string equations of state. We discuss string loop stability and derive frequencies of vibrational modes. Using the vibrating string loop model we fit the quasi-periodic oscillation (QPO) observed in X-ray signal coming from some compact sources. We demonstrate how the string-loop parameters are related to the radial and vertical fundamental vibration modes, and how the vibrational instability can be related to the Q-factor characterizing the observed QPOs.
description: 13 pages, 9 figures
Evolução e caracterização dos níveis de pobreza do Nordeste entre 1995 e 2005
Creators: name: Sobel, Tiago Farias
name: Gonçalves, Michela Barreto Camboim
name: Costa, Ecio De Farias
name: Sobel, Tiago Farias
name: Gonçalves, Michela Barreto Camboim
name: Costa, Ecio De Farias
Publisher: name: Unknown
Year: 2010
Subjects: subject: Agribusiness
subject: Poverty Measures
subject: Northeast
subject: National Public Policy

description: All over the world, there is a broad consensus between politicians and intellectuals that poverty reduction should be seen as one priority regarding public policies. Therefore,measuring poverty level becomes the target of an intense debate, when it is necessary firstly to identify where poverty is located to have, afterwards, conditions of fighting it. Nowadays, in Brazil, this concern is more evident when the analyses focus the economical space of the Northeast, because this region is considered the poorest of the country. Simultaneously, it is known that since mid 1994, a new political reality was imposed to the country, resulting in several consequences for national population and also Northeaster population. In general terms, this article has as general objective to measure and analyze poverty evolution in nine states of the Brazilian Northeast Region among 1995 and 2005, exposing main attributes that influenced in the observed situation. In general, it was observed that, in spite of the fact that in 2005 the poverty indicators were in high levels, there was a similar tendency in poverty evolution in the region – a significant decline between 1995 and 2005 – however, with some divergences in the intensity of the behavior of different states.
Benefícios sociais da política de incentivos à cultura de mamão no Estado do Ceará
Creators: name: Quintino, Heliana Mary Da Silva
name: Khan, Ahmad Saeed
name: Lima, Patricia Veronica Pinheiro Sales
name: Quintino, Heliana Mary Da Silva
name: Khan, Ahmad Saeed
name: Lima, Patricia Veronica Pinheiro Sales
Publisher: name: Unknown
Year: 2010
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: Economic surplus of Marshall
subject: simultaneous equations
subject: fruit crop

description: This study analyzes social benefits created by Ceará government incentives to papaya producers from 2001 to 2006. As theoretical basis, it was considered an approach of the economic surplus of Marshall and simultaneous equations model. Results indicate that the supply price-elasticity of papaya is very high. In spite of the decrease in quotes, there was a boost in the average amount supplied. The reduction in prices and increases in quantity are responsible for the rise in the society welfare. The aggregate value of total and per capita social benefits were of 3,163,045.00 reais and 39 cents of real, respectively. It shows the importance of actions taken by the government to reduce the cost of production in order to stimulate the development of fruit crops at Ceara state. The total social benefits of 4,690,042.00 reais were obtained by creating direct job opportunities of 1,876,016.00 reais and indirect employments of 2,814,025.00 reais. The producers received a boost in their average per capita income and total revenue of 167.05 percent and 282.74 percent, respectively. As a result, it is possible to conclude that many programs related to promote fruit production in Ceará have showed a boosting trend in production of papaya and in number of employments created.
The Ground State Electronic Energy of Benzene
Creators: name: Eriksen, Janus J.
name: Anderson, Tyler A.
name: Deustua, J. Emiliano
name: Ghanem, Khaldoon
name: Hait, Diptarka
name: Hoffmann, Mark R.
name: Lee, Seunghoon
name: Levine, Daniel S.
name: Magoulas, Ilias
name: Shen, Jun
name: Tubman, Norman M.
name: Whaley, K. Birgitta
name: Xu, Enhua
name: Yao, Yuan
name: Zhang, Ning
name: Alavi, Ali
name: Chan, Garnet Kin-Lic
name: Head-Gordon, Martin
name: Liu, Wenjian
name: Piecuch, Piotr
name: Sharma, Sandeep
name: Ten-no, Seiichiro L.
name: Umrigar, C. J.
name: Gauss, Jürgen
Publisher: name: arXiv
Year: 2020
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We report on the findings of a blind challenge devoted to determining the frozen-core, full configuration interaction (FCI) ground state energy of the benzene molecule in a standard correlation-consistent basis set of double-$ζ$ quality. As a broad international endeavour, our suite of wave function-based correlation methods collectively represents a diverse view of the high-accuracy repertoire offered by modern electronic structure theory. In our assessment, the evaluated high-level methods are all found to qualitatively agree on a final correlation energy, with most methods yielding an estimate of the FCI value around $-863$ m$E_{\text{H}}$. However, we find the root-mean-square deviation of the energies from the studied methods to be considerable (1.3 m$E_{\text{H}}$), which in light of the acclaimed performance of each of the methods for smaller molecular systems clearly displays the challenges faced in extending reliable, near-exact correlation methods to larger systems. While the discrepancies exposed by our study thus emphasize the fact that the current state-of-the-art approaches leave room for improvement, we still expect the present assessment to provide a valuable community resource for benchmark and calibration purposes going forward.
description: 29 pages, 1 figure, 2 tables. SI as an ancillary file
Cybersecurity as a Crosscutting Concept Across an Undergrad Computer Science Curriculum: An Experience Report
Creators: name: Nadeem, Azqa
Publisher: name: arXiv
Year: 2023
Subjects: subject: Cryptography and Security (cs.CR)
subject: Computers and Society (cs.CY)
subject: FOS: Computer and information sciences

description: Although many Computer Science (CS) programs offer cybersecurity courses, they are typically optional and placed at the periphery of the program. We advocate to integrate cybersecurity as a crosscutting concept in CS curricula, which is also consistent with latest cybersecurity curricular guidelines, e.g., CSEC2017. We describe our experience of implementing this crosscutting intervention across three undergraduate core CS courses at a leading technical university in Europe between 2018 and 2023, collectively educating over 2200 students. The security education was incorporated within CS courses using a partnership between the responsible course instructor and a security expert, i.e., the security expert (after consultation with course instructors) developed and taught lectures covering multiple CSEC2017 knowledge areas. This created a complex dynamic between three stakeholders: the course instructor, the security expert, and the students. We reflect on our intervention from the perspective of the three stakeholders -- we conducted a post-course survey to collect student perceptions, and semi-supervised interviews with responsible course instructors and the security expert to gauge their experience. We found that while the students were extremely enthusiastic about the security content and retained its impact several years later, the misaligned incentives for the instructors and the security expert made it difficult to sustain this intervention without organizational support. By identifying limitations in our intervention, we suggest ideas for sustaining it.
description: 6 pages; Accepted at SIGCSE TS '24
The Semi-forbidden CIII]$λ$1909Å~ Emission in the Rest-Ultraviolet Spectra of Green Pea Galaxies
Creators: name: Ravindranath, Swara
name: Monroe, TalaWanda
name: Jaskot, Anne
name: Ferguson, Henry C.
name: Tumlinson, Jason
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We used the Space Telescope Imaging Spectrograph (STIS) on the Hubble Space Telescope (HST) to observe the semi-forbidden CIII] emission in Green Pea galaxies at 0.13 < z < 0.3. We detect CIII] emission in 7/10 galaxies with CIII] equivalent widths that range from 2-10Å~. The observed CIII] emission line strengths are consistent with the predictions from photoionization models which incorporate the effects of binary stellar evolution with young stellar ages < 3-5 Myrs, and high ionization parameters (logU > -2). The hard ionizing radiation from young massive stars, and high nebular temperatures at low-metallicities can account for the observed high equivalent widths of CIII] and [OIII] emission lines. The Green Pea galaxies do not show a significant correlation between the Ly$α$ and CIII] equivalent widths, and the observed scatter is likely due to the variations in the optical depth of Ly$α$ to the neutral gas. Green Pea galaxies are likely to be density-bounded, and we examined the dependence of CIII] emission on the Lyman continuum optical depth. The potential LyC leaker galaxies in our sample have high CIII] equivalent widths that can only be reproduced by starburst ages as young as < 3 Myrs and harder ionizing spectra than the non-leakers. Among the galaxies with similar metallicities and ionization parameters, the CIII] equivalent width appears to be stronger for those with higher optical depth to LyC, as expected from the photoionization models. Further investigation of a larger sample of CIII]-emitters is necessary to calibrate the dependence of CIII] emission on the escape of LyC radiation, and to enable application of the CIII] diagnostics to galaxies in the reionization epoch.
description: 27 pages, 9 figures, accepted for publication in the Astrophysical Journal. Revised references and corrected typos
Grain refinement of stainless steel in ultrasound-assisted additive manufacturing
Creators: name: Todaro, C. J.
name: Easton, M. A.
name: Qiu, D.
name: Brandt, M.
name: StJohn, D. H.
name: Qian, M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applied Physics (physics.app-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Metals and alloys fabricated by fusion-based additive manufacturing (AM), or 3D printing, undergo complex dynamics of melting and solidification, presenting challenges to the effective control of grain structure. Herein, we report on the use of high-intensity ultrasound that controls the process of solidification during AM of 316L stainless steel. We find that the use of ultrasound favours the columnar-to-equiaxed transition, promoting the formation of fine equiaxed grains with random crystallographic texture. Moreover, the use of ultrasound increases the number density of grains from 305 mm-2 to 2748 mm-2 despite an associated decrease in cooling rate and temperature gradient in the melt pool during AM. Our assessment of the relationship between grain size and cooling rate indicates that the formation of crystallites during AM is enhanced by ultrasound. Furthermore, the use of ultrasound increases the amount of constitutional supercooling during solidification by lowering the temperature gradient in the bulk of the melt pool, thus creating an environment that favours nucleation, growth, and survival of grains. This new understanding provides opportunities to better exploit ultrasound to control grain structure in AM-fabricated metal products.
description: Paper published in Additive Manufacturing
Formas plurais de governança no sistema agroindustrial citrícola paulista
Creators: name: Mello, Fabiana Ortiz T.
name: Paulillo, Luiz Fernando Oriani
name: Mello, Fabiana Ortiz T.
name: Paulillo, Luiz Fernando Oriani
Publisher: name: Unknown
Year: 2010
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: Agricultural Finance
subject: citrus agroindustrial system
subject: plural forms
subject: governance
subject: transaction cost

description: The citrus agroindustrial system is a very interesting example of the interaction of different forms of governance. The same producer manages his orange sales to the market agents in different ways: this situation is called plural forms or contractual mix. On sales to purchasers that sell the fruit for in natura consumption, the producer deals in terms of spot market. On the other hand, contracts are predominant in transactions with juice-processing industry. The producer can also lease part of the unused capacity of an industry in order to process his own fruit and sell it straight to the market (quasi-integration) or integrate the sale of the in natura fruit becoming the owner of sheds (hierarchy). This work aims at identifying reasons that lead citrus growers to sell their product to different purchasers employing different governances. One of the conclusions on the determinants of plural forms in the case of citrus growing is linked to the fact that buyers from distinct channels of distribution (quantity, quality, fruit variety, location) have specific needs, which create restrictions that make the choice for multiple channels and forms of governance the only one available for many producers. Nevertheless, the main conclusion is that the attributes of the transaction are the key factors to explain the occurrence of plural forms, i.e., it is the fact that transactions between producers and members of distribution channels are different in at least one attribute (specificity of assets, frequency or uncertainty) that explains the adoption of different forms of coordination. As a result, citrus producers do not show inabilities to measure such attributes and, in especial, to identify the most efficient solution in terms of governance, making contractual mix a stable situation rather than a transitory one.
Fine structure of the chromospheric activity in Solar-type stars - The Halpha Line
Creators: name: Lyra, W.
name: de Mello, G. F. Porto
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: A calibration of H-alpha as both a chromospheric diagnostic and an age indicator is presented, complementing the works previously done on this subject (Herbig 1985, Pasquini & Pallavicini 1991. The chromospheric diagnostic was built with a statistically significant sample, covering nine years of observations, and including 175 solar neighborhood stars. Regarding the age indicator, the presence of stars for which very accurate ages are determined, such as those belonging to clusters and kinematic groups, lends confidence to our analysis. We also investigate the possibility that stars of the same age might have gone through different tracks of chromospheric decay, identifying - within the same age range - effects of metallicity and mass. These parameters, however, as well as age, seem to be significant only for dwarf stars, losing their meaning when we analyze stars in the subgiant branch. This result suggests that, in these evolved stars, the emission mechanism cannot be magnetohydrodynamical in nature, in agreement with recent models (Fawzy et al. 2002c, and references therein). The Sun is found to be a typical star in its H-alpha chromospheric flux, for its age, mass and metallicity. As a byproduct of this work, we developed an automatic method to determine temperatures from the wings of H-alpha, which means the suppression of the error inherent to the visual procedure used in the literature.
description: 10 pages, 10 figures, accepted for publication in Astronomy & Astrophysics. Nature of replacement: match astro-ph and ADS title (greek letter)
Análise da relação entre desmatamento e bem-estar da população da Amazônia Legal
Creators: name: Prates, Rodolfo Coelho
name: Bacha, Carlos Jose Caetano
name: Prates, Rodolfo Coelho
name: Bacha, Carlos Jose Caetano
Publisher: name: Unknown
Year: 2010
Subjects: subject: Agribusiness
subject: Amazonian region
subject: Deforestation
subject: Welfare
subject: Nonlinear programming

description: This paper analyses the empirical relationship between Amazonian rainforest deforestation and local population welfare, measuring the impact on welfare if the deforestation area has to be reduced. The Municipal Human Development Index (MHDI) was used to measure welfare. Using 1995 Agriculture Census dataset, a Cobb-Douglas production function was estimated considering three production inputs: capital, land and labor. Applying a nonlinear programming method (Kuhn-Tucker conditions) on theresults generated by and the production function, the impacts of land constraints on agriculture and agribusiness incomes could be calculated, generating a new value of income for each Amazonian state. Combining new values of income with education and health indexes, a new MHDI was estimated for some Amazonian states. Results point out MHDI would have small reductions, despite significant reductions in some states income, if some restrains would be established on arable land use.
title: 01_0768
Creators: name: Wesley Baldwin, John
name: Baldwin, John W.
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2018
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: L'ensemble de ces notes ont été crée par John Baldwin lors d'une de ses premières périodes de résidence à Paris. Ces documents comprennent tous les magistri qu’il avait pu rencontrer dans ses sources. Aux XIIème et XIIIème siècles, les universités n'existant pas encore, le titre de magister s'il évoque certainement une compétence n'est pas rattaché de façon systématique au passage par les écoles. De surcroît, les magistris sont le plus souvent désignés par leur seul prénom. La lecture de ces données est donc difficile et suppose un long travail pour tenter d'identifier un individu auquel on pourrait rattacher plusieurs mentions. John Baldwin avait donc renoncé à utiliser ces données pour donner un prolongement à sa magnifique étude sur les gradués d'université et leur emploi par les Capétiens et les Plantagenêts. Néanmoins, il a conservé ces données et elles sont potentiellement très utile dans le cadre de Studium, comme le sont toutes les mentions dans les volumes des Fasti Ecclesiae Gallicanae de chanoines portant ce titre de magister sans autres précisions. L'ampleur des dépouillements rend ces données très utiles et nous devons une grande reconnaissance à John Baldwin pour avoir pris la peine de faire photocopier ses fiches et de nous les avoir transmises amicalement.
Les données ainsi que les images des fiches sont accessibles sur le site Internet à l'adresse suivante : http://studium-baldwin.lamop.fr/.
Les transcriptions des fiches ont été effectuées par des étudiants de Paris 1 Panthéon - Sorbonne mais elles n'ont pas été corrigées par la suite.
description: Relation: https://lamop.hypotheses.org/
Uma análise da alocação de contratos futuros sobre commodities em portfólios diversificados
Creators: name: Silveira, Rodrigo Lanna Franco Da
name: Barros, Geraldo Sant'Ana De Camargo
name: Silveira, Rodrigo Lanna Franco Da
name: Barros, Geraldo Sant'Ana De Camargo
Publisher: name: Unknown
Year: 2010
Subjects: subject: Agribusiness
subject: Commodity futures contracts
subject: Portfolio
subject: Risk
subject: Diversification

description: This paper analyzed the impact of including commodity futures (arabica coffee, soybean, corn, crystal sugar, ethanol and fed cattle), negotiated at Securities, Commodity and Futures Exchange (BM&FBovespa), in the performance of a diversified portfolio, composed by stocks, bonds, gold and dollar, between August of 1994 and December of 2007, when were studied the complete time break and subdivisions of two and three periods, adding a biannual analysis. Different strategies with these derivatives were considered: buy and hold or sell and hold contracts of first settlement or that took six months to maturity. Using he Portfolio Theory, results in biannual analysis and over the time periods 1994-1998 and 1999-2003 showed improvement in portfolio efficiency, but without statistical significance, according methodology used by Gibbons, Ross e Shanken (1989).
Stabilization of vector solitons in optical lattices
Creators: name: Kartashov, Yaroslav V.
name: Zelenina, Anna S.
name: Vysloukh, Victor A.
name: Torner, Lluis
Publisher: name: arXiv
Year: 2004
Subjects: subject: Optics (physics.optics)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: We address the properties and dynamical stability of one-dimensional vector lattice solitons in Kerr-type cubic medium with harmonic transverse modulation of refractive index. We discovered that unstable families of scalar lattice solitons can be stabilized via the cross-phase modulation (XPM) in the vector case. It was found that multi-humped vector solitons that are unstable in uniform media where XPM strength is higher than that of self-phase modulation, can also be stabilized by the lattice.
description: 14 pages, 4 figures. To appear in Physical Review E, vol. 70
Desempenho social no agronegócio brasileiro: aplicando DEA no segmento de usinas de processamento de cana-de-açúcar
Creators: name: Macedo, Marcelo Alvaro Da Silva
name: Cípola, Fabrício Carvalho
name: Ferreira, Antonio Francisco Ritter
name: Macedo, Marcelo Alvaro Da Silva
name: Cípola, Fabrício Carvalho
name: Ferreira, Antonio Francisco Ritter
Publisher: name: Unknown
Year: 2010
Subjects: subject: Agribusiness
subject: Social and Environmental Performance
subject: Agribusiness
subject: DEA

description: The importance of social and environmental tags in companies comes from increasing demand, by the society itself, of information concerning impacts that the business create over the employees, community and environment. Therefore, companies needed to prove that its cost-benefit is positive, because they add value to economy and to society, because they respect the employees human rights and, in addition, because they develop its operational process without damaging environment. This research has the main focus to verify, through the application of Data Envelopment Analysis (DEA), the relation between investment capacity and social and environmental benefits, in a way that the higher are the benefits to a lower investment capacity, higher will be the efficiency and, as a result, the social and environmental performance. The study results of nineteen sugar cane mills in Brazil show that Agrovale (top benchmark) is the best one and São José Estiva is the smaller in terms of social and environmental performance. In addition, it was observed a relation between social and environmental practice and the size (measured by income), where bigger companies had best performances.
Additional file 3 of Post traumatic stress symptoms, anxiety, and depression in patients after intensive care unit discharge – a longitudinal cohort study from a LMIC tertiary care centre
Creators: name: Tripathy, Swagata
name: Acharya, Swati P.
name: Singh, Santosh
name: Suravi Patra
name: Biswa Ranjan Mishra
name: Nilamadhab Kar
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 3. Supplement 3- Linear mixed models- statistics.
The Economics of Water Project Capacities and Conservation Technologies
Creators: name: Xie, Yang
name: Zilberman, David
name: Xie, Yang
name: Zilberman, David
Publisher: name: Unknown
Year: 2014
Subjects: subject: Agricultural and Food Policy
subject: Environmental Economics and Policy
subject: Food Security and Poverty
subject: Public Economics
subject: Research and Development/Tech Change/Emerging Technologies
subject: Resource /Energy Economics and Policy
subject: dam capacity
subject: technology adoption
subject: water management efficiency
subject: food security
subject: climate change
subject: water reform

description: This paper builds a model determining optimal capacities of diversion dams or water transfer projects. The model incorporates stochastic inflows to the dams and the role of the dam capacity in reducing overflows, and gives a closed-form expression of the marginal benefit of capacities. Comparative static analysis suggests that larger water projects could be required by 1) improvements in water management efficiency, 2) upward shifts in the marginal overflow-caused loss, or 3) more abundant inflows. The result provides important policy implications about the impact of integrated water reforms, rising concern about food security, and climate change on optimal water project capacities. The model is also applied to analyze the relation between water project capacities and conservation technologies, showing 1) that too large or too small water projects could discourage adopting conservation technologies, 2) that the impact of conservation technologies on optimal capacities is ambiguous, and 3) that if designers of water projects take water users' potential adoption of conservation technologies into account, the first-order condition of the capacity determination model could have multiple solutions.
Neutrino mixing and cosmological constant
Creators: name: Blasone, Massimo
name: Capolupo, Antonio
name: Capozziello, Salvatore
name: Carloni, Sante
name: Vitiello, Giuseppe
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We report on the recent result that the non--perturbative vacuum structure associated with neutrino mixing leads to a non--zero contribution to the value of the cosmological constant. Its value is estimated by using the natural cut--off appearing in the quantum field theory formalism for neutrino mixing.
description: 2pages. Presented at 16th SIGRAV, Conference on General Relativity and Gravitational Physics, Vietri sul Mare, Italy, 13-16 September 2004
Ocena wpływu likwidacji kwot mlecznych na konkurencyjność polskiego mleczarstwa w kontekście teorii ekonomii
Creators: name: Szajner, Piotr
name: Szajner, Piotr
Publisher: name: Unknown
Year: 2012
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: Agricultural Finance
subject: Demand and Price Analysis
subject: Livestock Production/Industries
subject: Production Economics
subject: dairy sector
subject: market regulation
subject: milk quotas
subject: competitiveness
subject: / sektor mleczarski
subject: system regulacji rynku
subject: kwoty mleczne
subject: konkurencyjność

description: Milk quotas are a basic tool of the dairy market regime regulation in the EU. An abolishment of the quotas in 2015 will trigger considerable but positive changes in the market conditions. Limitation of supply, which in fact is a very strong intervention in the market fundamentals, has a negative impact on the efficiency and competitiveness of dairy sector. The abolishment of milk quotas will allow for an acceleration of structural changes and improvement in the use of economic capacity. Moreover it would reduce the strength of certain competitive forces within the dairy industry. Since milk prices are more and more dependant on the market situation, the impact of milk quotas in this respect has been gradually diminishing. / Synopsis. Kwoty mleczne stanowią podstawę systemu regulacji rynku mleka w UE. Likwidacja tego sytemu w 2015 r. spowoduje istotne zmiany w uwarunkowaniach rynkowych, ale z punktu widzenia teorii ekonomii wydaje się być dobrą decyzją. Limitowanie podaży, które jest silną ingerencją w prawa rynkowe, wywiera negatywny wpływ na efektywność i konkurencyjność sektora mleczarskiego. Zniesienie kwot mlecznych pozwoli przyspieszyć przemiany strukturalne, poprawić wykorzystanie potencjału ekonomicznego sektora oraz zmniejszyć natężenie oddziaływania niektórych sił konkurencji w mleczarstwie. Kwoty mleczne mają coraz mniejszy wpływ na ceny mleka, które w coraz większym stopniu zależą od koniunktury na rynku.