cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Analysis of large deflections of prominence-CME events during the rising phase of solar cycle 24
Creators: name: Sieyra, M. V.
name: Cécere, M.
name: Cremades, H.
name: Iglesias, F. A.
name: Sahade, A.
name: Mierla, M.
name: Stenborg, G.
name: Costa, A.
name: West, M.
name: D'Huys, E.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: Motivated by the need to improve the ability to forecast whether a certain coronal mass ejection (CME) is to impact Earth, and by the insufficiency of statistical studies that analyze the whole erupting system with the focus on the governing conditions under CME deflections, we performed a careful analysis of 13 events along a one-year time interval showing large deflections from their source region. We used telescopes imaging the solar corona at different heights and wavelengths on board the Project for Onboard Autonomy 2 (PROBA2), Solar Dynamics Observatory (SDO), Solar TErrestrial RElations Observatory (STEREO), Solar and Heliospheric Observatory (SOHO) spacecraft and from National Solar Observatory (NSO). By taking advantage of the quadrature position of these spacecraft from October 2010 until September 2011, we inspected the 3D trajectory of CMEs and their associated prominences with respect to their solar sources by means of a tie-pointing tool and a forward model. Considering the coronal magnetic fields as computed from a potential field source surface model, we investigate the roles of magnetic energy distribution and kinematic features in the non-radial propagation of both structures. The magnetic environment present during the eruption is found to be crucial in determining the trajectory of CMEs, in agreement with previous reports.
description: 32 pages, 16 figures
The Impact of CAFTA on Poverty, Distribution, and Growth in El Salvador
Creators: name: Morley, Samuel A.
name: Nakasone, Eduardo
name: Pineiro, Valeria
name: Morley, Samuel A.
name: Nakasone, Eduardo
name: Pineiro, Valeria
Publisher: name: Unknown
Year: 2007
Subjects: subject: Food Security and Poverty
subject: International Relations/Trade
subject: CAFTA
subject: El Salvador
subject: growth
subject: poverty
subject: CGE model

description: In this paper we develop a dynamic CGE model to examine the impact of CAFTA on production, employment and poverty in El Salvador. We model four aspects of the agreement: tariff reductions, quotas, changes in the rules of origin for maquila and more generous treatment of foreign investment. The model shows that CAFTA has a small positive effect on growth, employment and poverty. Tariff reduction under CAFTA adds about .2% to the growth rate of output up to 2020. Liberalizing the rules of origin for maquila has a bigger positive effect on growth and poverty mainly because it raises the demand for exportables produced by unskilled labor. We model the foreign investment effect by assuming that capital inflows go directly to capital formation. This raises the growth rate of output by over 1% per year and lowers poverty incidence in 2020 by over 25% relative to what it would be in the baseline scenario. These simulations say something important about the growth process in a country like El Salvador in which it seems reasonable to assume that there is idle unskilled labor willing and able to work at a fixed real wage. In such an economy, growth can be increased in one of three ways. First, already employed resources can be moved to sectors where they are more productive. That is what the tariff reductions under CAFTA do, and the result is positive but small. Second, the structure of demand can be changed in such a way as to increase the demand for previously unemployed unskilled labor. That is what the maquila simulation does, because maquila uses a lot of unskilled labor relative to skilled labor and capital. Finally the supply of capital can be increased by increasing the rate of capital formation. That is what happens in the FDI simulation.
Mobile health platforms for active and healthy ageing support in older adults : design ideas from a participatory design study
Creators: name: Vaziri, Daryoush Daniel
name: Anslinger, Melanie
name: Unbehaun, David
name: Wieching, Rainer
name: Randall, Dave
name: Schreiber, Dirk
name: Wulf, Volker
Publisher: name: Universitätsbibliothek Siegen
Year: 2019
Subjects: subject: 650 Management
subject: Aktives und Gesundes Altern
subject: IKT
subject: Partizipatives Design
subject: Active healthy ageing
subject: ICT
subject: Participatory design

description: In this paper, we provide a participatory design study of a mobile health platform for older adults that provides an integrative perspective on health data collected from different devices and apps. We illustrate the diversity and complexity of older adults’ perspectives in the context of health and technology use, the challenges which follow on for the design of mobile health platforms that support active and healthy ageing (AHA) and our approach to addressing these challenges through a participatory design (PD) process. Interviews were conducted with older adults aged 65+ in a two-month study with the goal of understanding perspectives on health and technologies for AHA support. We identified challenges and derived design ideas for a mobile health platform called “My-AHA”. For researchers in this field, the structured documentation of our procedures and results, as well as the implications derived provide valuable insights for the design of mobile health platforms for older adults.
Global Gronwall Estimates for Integral Curves on Riemannian Manifolds
Creators: name: Kunzinger, Michael
name: Schichl, Hermann
name: Steinbauer, Roland
name: Vickers, James A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Differential Geometry (math.DG)
subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 53B21; 53C22; 34A26

description: We prove Gronwall-type estimates for the distance of integral curves of smooth vector fields on a Riemannian manifold. Such estimates are of central importance for all methods of solving ODEs in a verified way, i.e., with full control of roundoff errors. Our results may therefore be seen as a prerequisite for the generalization of such methods to the setting of Riemannian manifolds.
description: 4 pages, 1 figure, correction of some misprints
Lossky, Vladimir: Die mystische Theologie der morgenländischen Kirche
Creators: name: Engberding, Hieronymus
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 46 (1962): Oriens christianus, Band 46
Image method solutions for free-particle wave packets
Creators: name: Robinett, R. W.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Using analogs of familiar image methods in electrostatics and optics, we show how to construct closed form wave packet solutions of the two-dimensional free-particle Schrodinger equation in geometries restricted by two infinite wall barriers separated by an angle Theta = pi/N. As an example, we evaluate probability densities and expectation values for a zero-momentum wave packet solution initially localized in a pi/3 = 60 degree wedge. We review the time-development of zero-momentum wave packets placed near a single infinite wall barrier in an Appendix.
description: 14 pages, 4 figures, to appear in Eur. J. Phys
Impact of Contract Farming on Income: Linking Small Farmers, Packers, and Supermarkets in China
Creators: name: Miyata, Sachiko
name: Minot, Nicholas
name: Hu, Dinghuan
name: Miyata, Sachiko
name: Minot, Nicholas
name: Hu, Dinghuan
Publisher: name: Unknown
Year: 2007
Subjects: subject: Agribusiness
subject: Farm Management
subject: contract farming
subject: China
subject: horticulture
subject: exports

description: Contract farming is seen by proponents as a way to raise small-farm income by delivering technology and market information to small farmers, incorporating them into remunerative new markets. Critics, however, see it as a strategy for agribusiness firms to pass production risk to farmers, taking advantage of an unequal bargaining relationship. There is also concern that contract farming will worsen rural income inequality by favoring larger farmers. This study examines these issues in Shandong Province, China, using survey data collected from 162 apple and green onion farmers and interviews with four contracting firms in 2005. Using a probit model to estimate participation in a contract-farming scheme, we find little evidence that contracting firms prefer to work with larger farmers, though all farms in the area are quite small. Furthermore, using a Heckman selection-correction model to control for possible selection bias, we find that contract farmers earn significantly more than independent farmers after controlling for household labor availability, education, farm size, and other characteristics. Finally, we find that the way contracting contributes to farm income varies between commodities: contract apple growers benefit from higher yields (presumably due to technical assistance), while contract green onion growers receive higher prices (presumably due to better quality). These results suggest that contract farming can help small farmers raise their incomes and gain access to the growing urban and export markets. Questions remain regarding the number of farmers that are, or could be, brought into similar contract arrangements.
Influence of pre-commercial thinning of second growth coniferous forests in northwestern British Columbia on porcupine (Erethizon dorsatum) movements, mortality and foraging
Creators: name: Zimmerling, Todd
Publisher: name: University of British Columbia
Year: 2009

description: To determine if pre-commercial thinning to 1200 stems/ha and 400 stems/ha influences movements, mortality rates and foraging behaviour of porcupines (Erethizon dorsatum), I monitored 33 radio-collared individuals over 4 winters. The study area consisted of three second-growth conifer stands (20 -25 years of age) located in Shames Valley, near Terrace, British Columbia. I found that porcupines selected den locations that had a higher than average density of sitka spruce (Picea sitchensis) within 10 m of the den compared to the rest of the stand. Once a den site was selected, porcupines foraged in a non-random manner, selecting western hemlock (Tsuga heterophylla) > 9.9 cm diameter at breast height. Amabilis fir (Abies amabilis) of all stem diameter sizes were avoided during foraging, as were western hemlock and sitka spruce < 9.9 cm diameter at breast height. Throughout the winter months, a single porcupine damaged an average of 0.54 new forage trees per day. A regression analysis revealed a strong relationship (r2 = 0.92) between midwinter mass of a porcupine and the number of new trees damaged per day. Porcupines chose the type of den they would use (stump, rock, log or pre-excavated den) based on the level of thermal protection provided. Stump dens and rock dens were used most frequently. Although fourteen of the 20 winter months of the study had average minimum temperatures below the lower critical temperature of the porcupines (-4°C), rock and stump dens provided enough thermal protection to maintain den temperatures above -4°C under most conditions. In areas thinned to 400 stems/ha, porcupines increased their foraging radius around the den site compared to porcupines in the control area. Porcupines in thinned areas compensated for the increased cost of travel to reach their forage trees by increasing the amount of vascular tissue removed per forage tree. Porcupines in the thinned areas travelled through deep snow more and in open areas more often compared to control animals, but did not lose more mass or suffer higher predation as a result. Based on the conceptual model developed from this study, in areas where porcupine feeding damage is a risk, forest managers are advised to avoid thinning to low stem densities and thin to > 1200 stems/ha, or avoid pre-commercial thinning completely.
Energy in the Einstein-Aether Theory
Creators: name: Eling, Christopher
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We investigate the energy of a theory with a unit vector field (the "aether") coupled to gravity. Both the Weinberg and Einstein type energy-momentum pseudotensors are employed. In the linearized theory we find expressions for the energy density of the 5 wave modes. The requirement that the modes have positive energy is then used to constrain the theory. In the fully non-linear theory we compute the total energy of an asymptotically flat spacetime. The resulting energy expression is modified by the presence of the aether due to the non-zero value of the unit vector at infinity and its 1/r falloff. The question of non-linear energy positivity is also discussed, but not resolved.
description: 10 pages; v2: revised manuscript, final version, to appear in PRD; v3: corrected error in the equation for the aether stress tensor, results unchanged since correct form was used in calculations
Spatial Coordination in Public Good Allocation: Nonparametric Evidence from Decentralized Indonesia
Creators: name: Yamauchi, Futoshi
name: Chowdhury, Shyamal K.
name: Dewina, Reno
name: Yamauchi, Futoshi
name: Chowdhury, Shyamal K.
name: Dewina, Reno
Publisher: name: Unknown
Year: 2007
Subjects: subject: Resource /Energy Economics and Policy
subject: public goods
subject: education
subject: health
subject: spatial coordination
subject: poverty dynamics
subject: Indonesia

description: This paper examines dynamics in public good accessibility and cross-community inequality in Indonesia, using village-level panel data from 2000 to 2006 from their decentralized public-good allocation system. The introduction of decentralization makes public-good investment dependent on initial local income and endowment, and makes it difficult to coordinate investment decisions across communities. Our analysis also shows that possible strategic interactions among communities connected with transportation infrastructure (externalities) implies spatial divergence. Empirical evidence on education and health facilities, however, demonstrates that during the decentralized period, (1) accessibility to school has improved and school investments were effectively coordinated over space; (2) hospital access has improved only marginally; but (3) per-capita availability of schools and local medical clinics (puskesmas) in the community shows convergence toward low-level equilibria. Despite the coordination in spatial allocation even in the decentralization period (observed in intervillage accessibility), endogenous population mobility and growth partially cancel the benefits of the coordinated efforts in public-good allocation. This point requires further policy attention.
Genetically Modified Food and International Trade: The Case of India, Bangladesh, Indonesia, and the Philippines
Creators: name: Gruere, Guillaume P.
name: Bouet, Antoine
name: Mevel, Simon
name: Gruere, Guillaume P.
name: Bouet, Antoine
name: Mevel, Simon
Publisher: name: Unknown
Year: 2007
Subjects: subject: International Relations/Trade
subject: genetically modified food
subject: international trade
subject: segregation
subject: Asia

description: Genetically modified (GM) food crops have the potential to raise agricultural productivity in Asian countries, but they are also associated with the risk of market access losses in sensitive importing countries. We study the potential effects of introducing GM food crops in Bangladesh, India, Indonesia, and the Philippines in the presence of trade-related regulations of GM food in major importers. We focus on GM field crops (rice, wheat, maize, soybeans, and cotton) resistant to biotic and abiotic stresses, such as drought-resistant rice, and use a multi-country, multi-sector computable general equilibrium model. We build on previous international simulation models by improving the representation of the productivity shocks associated with GM crops, and by using an improved representation of the world market, accounting for the effects of GM food labeling policies in major importers and the possibility of segregation for non-GM products going toward sensitive importing countries. The results of our simulations first show that the gains associated with the adoption of GM food crops largely exceed any type of potential trade losses these countries may incur. Adopting GM crops also allows net importing countries to greatly reduce their imports. Overall, we find that GM rice is bound to be the most advantageous crop for the four countries. Second, we find that segregation of non-GM crops can help reduce any potential trade loss for GM adopters, such as India, that want to keep export opportunities in sensitive countries, even with a 5 percent segregation cost. Lastly, we find that the opportunity cost of segregation is much larger for sensitive importing countries than for countries adopting new GM crops, which suggests that sensitive importers will have the incentive to invest in separate non-GM marketing channels if exporting countries like India decide to adopt GM food crops.
Additional file 9 of Walking with a powered ankle-foot orthosis: the effects of actuation timing and stiffness level on healthy users
Creators: name: Moltedo, Marta
name: Baček, Tomislav
name: Serrien, Ben
name: Langlois, Kevin
name: Vanderborght, Bram
name: Lefeber, Dirk
name: Rodriguez-Guerrero, Carlos
Publisher: name: figshare
Year: 2020
Subjects: subject: Biophysics
subject: Space Science
subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 9 Table S3. Gait parameters measured in different walking conditions at the last minute of walking.
Theoretical Prediction of Electron Mobility in Birhodanine Crystals and their Sulfur Analogues
Creators: name: Neto, Carlos Alberto Moreira de Melo
name: Junior, Marcelo Lopes Pereira
name: Junior, Luiz Antonio Ribeiro
name: Filho, Demetrio Antonio da Silva
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences
subject: J.2; I.6
subject: 00-xx

description: Molecular crystals compose the current state of the art when it comes to organic-based optoelectronic applications. Charge transport is a crucial aspect of their performance. The ability to predict accurate electron mobility is needed in designing novel organic semiconducting materials. In the present work, the Semi-Classical Marcus (SCM) and Marcus-Levich-Jortner (MLJ) hopping models are employed to numerically describe the charge mobility in six distinct birhodanine-like crystals. These materials were recently used in n-channel organic transistors as electron transporting layers. Results have revealed that the MLJ approach predicts electron mobilities in good agreement with the experiment, whereas SCM underestimates this parameter. Remarkably, we found for one of the birhodanine derivatives studied here average electron mobility of 0.14 cm^2 V^(-1) s^(-1), which agrees with the one reported in experimental investigations. Moreover, it was identified that the MLJ approach presents a strong dependency on external reorganization energy. For SCM, a change in the reorganization energy value has a small impact on mobility, while for MLJ it impacts the average electron mobility that exponentially decays by increasing the external reorganization energy. Importantly, we highlight the primary source of the differences in predicting the electron mobility presented by both approaches, providing useful details that will help the selection of one of these two models for study different species of organic molecular crystals.
description: 12 pages and 05 figures
Light Superpartners at Hadron Colliders
Creators: name: Bogachev, D. Yu.
name: Gladyshev, A. V.
name: Kazakov, D. I.
name: Nechaev, A. S.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Uncertainties of the MSSM predictions are due to an unknown SUSY breaking mechanism. To reduce these uncertainties, one usually imposes constraints on the MSSM parameter space. Recently, two new constraints became available, both from astrophysics: WMAP precise measurement of the amount of the Dark Matter in the Universe and EGRET data on an excess in diffuse gamma ray flux. Being interpreted as a manifestation of supersymmetry these data lead to severe constraints on parameter space and single out a very restricted area. The key feature of this area is the splitting of light gauginos from heavy squarks and sleptons. We study the phenomenological properties of this scenario, in particular, the cross-sections of superparticle production, their decay patterns and signatures for observation at hadron colliders, Tevatron and LHC. We found that weakly interacting particles in this area are very light so that the cross-sections may reach fractions of a pb with jets and/or leptons as final states accompanied by missing energy taken away by light neutralino with a mass around 100 GeV.
description: 18 pages, LaTeX, uses axodraw.sty
MPEC 2025-G72 : 2025 GQ
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2025
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2025 GQ

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
LHC Constraints on Scalar Diquarks
Creators: name: Pascual-Dias, Bruna
name: Saha, Pratishruti
name: London, David
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A number of years ago, low-energy constraints on scalar diquarks, particles that couple to two quarks, were examined. It was found that the two most weakly-constrained diquarks are $D^u$ and $D^d$, colour antitriplets that couple to $u_{R}^{i} u_{R}^{j}$ and $d_{R}^{i} d_{R}^{j}$, respectively. These diquarks have not been observed at the LHC. In this paper, we add the LHC measurements to the low-energy analysis, and find that the constraints are significantly improved. As an example, denoting $x^u$ as the $D^u$ coupling to the first and second generations, for $M_{D^u} = 600$ GeV, the low-energy constraint is $|x^u| \leq 14.4$, while the addition of the LHC dijet measurement leads to $|x^u| \leq 0.13$--$0.15$. Further improvements are obtained by adding the measurement of single top production with a $p_T$ cut. These new constraints must be taken into account in making predictions for other low-energy indirect effects of diquarks.
description: 17 pages, 8 figures, new references added
Heavy Quarkonia - A Review of the Experimental Status
Creators: name: Seth, Kamal K.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: A review of the present status of the spectroscopy of heavy quarkonia (b-bbar, c-cbar) is presented.
description: 6 pages, 4 figures, Presented at the 11th International Conference In Quantum ChromoDynamics (QCD 04), Montpellier, France, 5-9 July 2004
Income Growth and Gender Bias in Childhood Mortality in Developing Countries
Creators: name: Ueyama, Mika
name: Ueyama, Mika
Publisher: name: Unknown
Year: 2007
Subjects: subject: Labor and Human Capital
subject: Gender bias
subject: intrahousehold resource allocation
subject: childhood mortality
subject: South Asia
subject: Sub-Saharan Africa
subject: developing countries

description: With poverty studies having shifted their focus from household poverty to individual poverty, a number of studies have started to examine intrahousehold resource allocation, especially gender bias within the household as potential causes of poverty. The literature has highlighted the existence of gender inequalities in South Asia, attributed to strong preferences for male offspring stemming from cultural and traditional customs. Only a few studies focused on the regional difference in the extent of gender bias and its response to income growth. To fill a void in previous studies, this study analyzes regional differences in gender discrimination, taking into account time-series variations. Furthermore, we test whether economic factors are responsible for gender bias in child mortality. There are two main objectives in this study. First, through a comprehensive literature review and a careful treatment of data compilation, regional features and recent trends in gender bias in children’s health outcomes are updated. We find strong evidence of severe disparity in child health against girls in South Asia; in contrast, no such anti-female gender bias exists in Sub-Saharan Africa. Second, this paper empirically tests the relationship between gender biases in child mortality and income growth using carefully-compiled new country-level panel data, paying attention to the possibility that such relationship differs between regions and changes over time. To investigate the relationship, two types of data sets are used: (1) new cross-country panel data of childhood mortality rates by sex, collected from various sources of macro statistics, such as DHS stat and WHO statistics; and (2) our own estimates for age-specific child mortality rates of children, constructed from the retrospective information on birth and death histories included in micro data of each round of the Demographic and Health Surveys (DHS). The empirical result suggests that income growth is correlated with the reduction of the antifemale bias in childhood mortality in most regions of the developing world—including South Asia. This result is reasonable, since income growth leads to an increase in nutrition intake (food consumption) and in health related inputs. In sharp contrast, the regression result does not show any significant correlation between gender biases in child health outcomes and income growth in Sub-Saharan Africa. While previous studies focused on the severe gender bias in South Asia, this study examined the correlation between income growth and gender bias and found a new dimension of regional contrast between Sub- Saharan Africa and other regions.
Limits of Baumslag-Solitar groups
Creators: name: Guyot, Luc
name: Stalder, Yves
Publisher: name: arXiv
Year: 2005
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics

description: We give a parametrization by $m$-adic integers of the limits of Baumslag-Solitar groups (marked with a canonical set of generators). It is shown to be continuous and injective on the invertible $m$-adic integers. We show that all such limits are extensions of a free group by a lamplighter group and all but possibly one are not finitely presented. Finally, we give presentations related to natural actions on trees.
description: 24 pages; essentially equivalent to the version submitted to the editors after acceptance for publication; numerotation of statements is now coherent with the published version
More Exotic Field Theories in 3+1 Dimensions
Creators: name: Gorantla, Pranay
name: Lam, Ho Tat
name: Seiberg, Nathan
name: Shao, Shu-Heng
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We continue the exploration of nonstandard continuum field theories related to fractons in 3+1 dimensions. Our theories exhibit exotic global and gauge symmetries, defects with restricted mobility, and interesting dualities. Depending on the model, the defects are the probe limits of either fractonic particles, strings, or strips. One of our models is the continuum limit of the plaquette Ising lattice model, which features an important role in the construction of the X-cube model.
description: 68 pages, 3 figures, 7 tables
Seed Provision and Dryland Crops in the Semiarid Regions of Eastern Kenya
Creators: name: Nagarajan, Latha
name: Audi, Patrick
name: Jones, Richard
name: Smale, Melinda
name: Nagarajan, Latha
name: Audi, Patrick
name: Jones, Richard
name: Smale, Melinda
Publisher: name: Unknown
Year: 2007
Subjects: subject: Crop Production/Industries
subject: seed interventions
subject: local markets
subject: seed systems
subject: dry lands
subject: seed access

description: Over the last two decades, several seed-related programs have been initiated in eastern Kenya to improve farmers’ access to quality seeds of dryland cereals and legumes. They are provided during two occasions, regular and emergency times. But very often, the formal supply mechanisms limit their role in provision of seeds other than maize. In the absence of any formalized systems of seed provision for other dryland crops, such as sorghum and pigeon pea, farmers have preferred local markets for their seed needs, especially during distress periods. Here we have examined the role of various seed-intervention programs in eastern Kenya, along with the strengths and weaknesses of each program. We have also underscored the importance of local markets and their actors in meeting the needs for non-maize and bean seeds in these marginal environments. For this purpose, detailed, informal interviews were conducted during October–December 2005 with all the stakeholders, namely public and private institutions and vendors in eight major local markets in eastern Kenya. The results of the study call for synergies between existing formal (private, public, and other development initiative) systems and informal (local market) seed systems to enhance crop yields and the diversity of dryland cereals and legumes through effective seedsupply interventions.
Effects of mode-mode and isospin-isospin correlations on domain formation of disoriented chiral condensates
Creators: name: Ikezi, N.
name: Asakawa, M.
name: Tsue, Y.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The effects of mode-mode and isospin-isospin correlations on nonequilibrium chiral dynamics are investigated by using the method of the time dependent variational approach with squeezed states as trial states. Our numerical simulations show that large domains of the disoriented chiral condensate (DCC) are formed due to the combined effect of the mode-mode and isospin-isospin correlations. Moreover, it is found that, when the mode-mode correlation is included, the DCC domain formation is accompanied by the amplification of the quantum fluctuation, which implies the squeezing of the state. However, neither the DCC domain formation nor the amplification of the quantum fluctuation is observed if only the isospin-isospin correlation is included. This suggests that the mode-mode coupling plays a key role in the DCC domain formation.
description: 10 pages, 11 figures; Correction of an error in Fig.1
Additional file 6 of Walking with a powered ankle-foot orthosis: the effects of actuation timing and stiffness level on healthy users
Creators: name: Moltedo, Marta
name: Baček, Tomislav
name: Serrien, Ben
name: Langlois, Kevin
name: Vanderborght, Bram
name: Lefeber, Dirk
name: Rodriguez-Guerrero, Carlos
Publisher: name: figshare
Year: 2020
Subjects: subject: Biophysics
subject: Space Science
subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 6 Figure S3. Hip, knee, and ankle joints kinematics in the sagittal plane at the assisted leg during different walking conditions. The joint trajectories are given for the last minute of walking. For each session (each row), the joints trajectories for the second minute of walking in the NW condition is also given (NW(2), NW2(2), and NW3(2)).
New statistical and machine learning methods for time series forecasting
Creators: name: Wei, James
Publisher: name: Imperial College London
Year: 2024

description: In this thesis, we explore novel approaches to time series forecasting across several domains. Our first direction of research involves the forecasting of network time series models. We propose an extension of generalised network autoregressive (GNAR) models to include exogenous variables (GNARX). We then demonstrate the superior forecasting performance of GNARX models compared to traditional vector autoregressive models when assessing the impact of the COVID-19 pandemic on global business confidence, exploiting the information contained in trade network data and exogenous public health policy variables. Our next contribution is to develop a novel class of models for mixed frequency data analysis, Fully NonParametric MIDAS (FNP-MIDAS). This extends the MIxed DAta Sampling (MIDAS) framework by incorporating nonlinear component functions, offering a more flexible handling of temporal dependencies and lags. We develop a backfitting estimation algorithm and apply the recently-developed trend filtering nonparametric regression method, showing that FNP-MIDAS exhibits significant improvements in forecasting urban atmospheric pollution levels over its linear counterparts. We then dive into the realm of feature engineering, examining the utility of non-decimated wavelet features and non-decimated wavelet packet features for a wide range of forecasting applications. Our investigation encompasses both temporal and non-temporal machine learning methods, and both one-step-forward predictions and long-horizon forecasts. We find sizable benefits to using wavelet features rather than lagged features for the vast majority of experimental cases. Lastly, we present the Neural Factor Model, a novel feedforward neural network architecture for forecasting large cap global stock returns using a high dimensional dataset. By integrating factor characteristics, cross-asset returns, and macroeconomic data within a hierarchical structure together with various parameter constraints, this model minimizes overfitting risks and showcases strong backtest performance for a hypothetical long-short investment strategy.
Drive-noise tolerant optical switching inspired by composite pulses
Creators: name: Bulmer, J. F. F.
name: Jones, J. A.
name: Walmsley, I. A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applied Physics (physics.app-ph)
subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Electro-optic modulators within Mach--Zehnder interferometers are a common construction for optical switches in integrated photonics. A challenge faced when operating at high switching speeds is that noise from the electronic drive signals will effect switching performance. Inspired by the Mach--Zehnder lattice switching devices of Van Campenhout et al. [Opt. Express, 17, 23793 (2009)] and techniques from the field of Nuclear Magnetic Resonance known as composite pulses, we present switches which offer protection against drive-noise in both the on and off state of the switch for both the phase and intensity information encoded in the switched optical mode.
description: 8 pages, 4 figures
Food Safety Requirements in African Green Bean Exports and Their Impact on Small Farmers
Creators: name: Okello, Julius Juma
name: Narrod, Clare A.
name: Roy, Devesh
name: Okello, Julius Juma
name: Narrod, Clare A.
name: Roy, Devesh
Publisher: name: Unknown
Year: 2007
Subjects: subject: Food Consumption/Nutrition/Food Safety
subject: International Relations/Trade
subject: international food safety standards
subject: smallholders
subject: supply chains

description: Many African countries have moved into the production of non-traditional agricultural products, in an effort to diversify their exports and increase foreign currency earnings. However, in order to access developed country markets and urban domestic markets, these products must meet food safety requirements, including protocols relating to pesticide residues, field and pack house operations, and traceability. Faced with stringent food safety requirements, companies that establish production centers in low-income countries might exclude poor farmers, thus negatively impacting the poor. We herein study this issue in the case of the green bean export sectors in three African countries: Ethiopia, Kenya and Zambia. In the short-term, stringent food safety standards have screened out smallholders in all these countries, excluding them from the green bean export chain. However, some institutional arrangements have helped support the smallholders who continue to function in the export-oriented green bean supply chains. In particular, public-private partnerships have played a key role in creating farm-to-fork linkages that can satisfy market demands for food safety while retaining smallholders in the supply chain. Furthermore, organized producer groups capable of monitoring their own food safety requirements through collective action have become attractive to buyers who are looking for ways to ensure traceability and reduce transaction costs.
Additional file 7 of Walking with a powered ankle-foot orthosis: the effects of actuation timing and stiffness level on healthy users
Creators: name: Moltedo, Marta
name: Baček, Tomislav
name: Serrien, Ben
name: Langlois, Kevin
name: Vanderborght, Bram
name: Lefeber, Dirk
name: Rodriguez-Guerrero, Carlos
Publisher: name: figshare
Year: 2020
Subjects: subject: Biophysics
subject: Space Science
subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 7 Table S2. Kinematics parameters measured in different walking conditions at the last minute of walking.
Hamiltonian-minimal Lagrangian submanifolds in complex space forms
Creators: name: Castro, Ildefonso
name: Li, Haizhong
name: Urbano, Francisco
Publisher: name: arXiv
Year: 2004
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53C42

description: Using Legendrian immersions and, in particular, Legendre curves in odd dimensional spheres and anti De Sitter spaces, we provide a method of construction of new examples of Hamiltonian-minimal Lagrangian submanifolds in complex projective and hyperbolic spaces, including explicit one parameter families of embeddings of quotients of certain product manifolds. In addition, new examples of minimal Lagrangian submanifolds in complex projective and hyperbolic spaces also appear. Making use of all of them, we get Hamiltonian-minimal and special Lagrangian cones in complex Euclidean space too.
description: 28 pages
Additional file 8 of Walking with a powered ankle-foot orthosis: the effects of actuation timing and stiffness level on healthy users
Creators: name: Moltedo, Marta
name: Baček, Tomislav
name: Serrien, Ben
name: Langlois, Kevin
name: Vanderborght, Bram
name: Lefeber, Dirk
name: Rodriguez-Guerrero, Carlos
Publisher: name: figshare
Year: 2020
Subjects: subject: Biophysics
subject: Space Science
subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 8 Figure S4. Left ankle HS ROM and left ankle swing ROM during different walking conditions at the first and last minute of walking. Statistically significant differences as compared to NW and ZT are reported with blue and orange asterisks, respectively. * indicates p ≤0.05, ** indicates p ≤0.01, and *** indicates p ≤0.001.
Strengthening Agricultural Education and Training in Sub-Saharan Africa from an Innovation Systems Perspective: Case Studies of Ethiopia and Mozambique
Creators: name: Davis, Kristin E.
name: Ekboir, Javier M.
name: Mekasha, Wendmsyamregne
name: Ochieng, Cosmas M.O.
name: Spielman, David J.
name: Zerfu, Elias
name: Davis, Kristin E.
name: Ekboir, Javier M.
name: Mekasha, Wendmsyamregne
name: Ochieng, Cosmas M.O.
name: Spielman, David J.
name: Zerfu, Elias
Publisher: name: Unknown
Year: 2007
Subjects: subject: Labor and Human Capital
subject: Agricultural education and training
subject: innovation systems
subject: Sub-Saharan Africa
subject: Ethiopia
subject: Mozambique

description: This paper examines the role of postsecondary agricultural education and training (AET) in Sub-Saharan Africa in the context of the region’s agricultural innovation systems. Specifically, the paper looks at how AET in Sub-Saharan Africa can contribute to agricultural development by strengthening innovative capabilities, or the ability to introduce new products and processes that are socially or economically relevant to smallholder farmers and other agents in the agricultural sector. Using AET in Ethiopia and Mozambique as case studies, the paper argues that while AET is conventionally viewed in terms of its role in building human and scientific capital, it also has a vital role to play in building the capacity of organizations and individuals to transmit and adapt new applications of existing information, new products and processes, and new organizational cultures and behaviors. The paper emphasizes the importance of improving AET systems by strengthening the innovative capabilities of AET organizations and professionals; changing organizational cultures, behaviors, and incentives; and building innovation networks and linkages. The paper draws on two main sources of information: the emerging literature on innovation systems in developing-country agriculture, and data gathered from secondary sources and semi-structured key informant interviews conducted in Ethiopia and Mozambique in late 2006. The paper offers several recommendations that can contribute to enhancing the effectiveness of AET’s contribution to agricultural innovation and development. Key reforms include aligning the mandates of AET organizations with national development aspirations by promoting new educational programs that are more strategically attuned to the different needs of society; inducing change in the cultures of AET organizations through the introduction of educational programs and linkages beyond the formal AET system; and strengthening individual and organizational capacity by improving incentives to forge stronger linkages between AET and diverse user communities, knowledge sources, and private industry.
Moss, Cyril: Catalogue of Syriac printed books and related Literature in the British Museum
Creators: name: Molitor, Joseph
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 46 (1962): Oriens christianus, Band 46
TATOO: a tidal-chronology standalone tool to estimate the age of massive close-in planetary systems
Creators: name: Florian
name: Gallet
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The presence of a massive close-in planet with an orbital period of a few days or less around a low-mass star can possibly results in a strong variation of the properties of the central star. Indeed, star-planet tidal interactions generate exchanges of angular momentum that can results in tidal spin-up. This effect could then lead to gyrochronological ages biased towards younger ages. Aims. This article provides the community with TATOO, a standalone tool based on tidal-chronology, to estimate the age of a massive close-in planetary system by only using its observed properties: mass of the planet and the star, stellar rotational and planetary orbital periods. I used the numerical code described in Gallet et al. (2018) to create a large multi-parametric grid of synthetic star-planet systems evolution, and 3D interpolation method to provide a fairly precise age estimate, using tidal-chronology technique, of any given planetary systems composed of at least of one massive close-in planet. About half of the planetary systems investigated in this work are subject to tidal spin-up bias. I pointed out that this bias linearly scales with the ratio between rotation to orbital period, making this quantity a useful proxy to rapidly investigate the need to use tidal-chronology. Moreover, while being model dependent, TATOO can also be used even if no rotational departure is present. In that case, it gives results in agreement with the classical gyrochronological analysis. TATOO is a useful tool specifically designed for massive close-in planetary systems that can also be used as a classical gyrochronological tool. For now it is the only publicly available software to estimate the age of massive close-in planetary systems subject to tidal spin-up. In that sense, tidal-chronology can be seen as a first order correction of the impact of tidal interaction on gyrochronology.
description: 11 pages, 4 figures, accepted for publication in A&A, Language correction
Additional file 5 of Walking with a powered ankle-foot orthosis: the effects of actuation timing and stiffness level on healthy users
Creators: name: Moltedo, Marta
name: Baček, Tomislav
name: Serrien, Ben
name: Langlois, Kevin
name: Vanderborght, Bram
name: Lefeber, Dirk
name: Rodriguez-Guerrero, Carlos
Publisher: name: figshare
Year: 2020
Subjects: subject: Biophysics
subject: Space Science
subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 5 Table S1. RMS of the activity of the lower limbs muscles across walking conditions at the last minute of walking.
Integrated Multi-Port Leaky-Wave Antenna Multiplexer/Demultiplexer System for Millimeter-Wave Communication
Creators: name: Emara, Mohamed K.
name: Gupta, Shulabh
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: A novel application of leaky-wave antennas (LWAs) as integrated antennas and multiplexers/demultiplexers is proposed and experimentally demonstrated in the millimeter-wave band at 60~GHz. The first application is demultiplexing of an oblique-incident free-space wideband plane wave into $2N$ channels using $N$ LWAs with different beam-scanning laws. The second application is $N$--channel multiplexing and demultiplexing using $N$ pairs of identical LWAs in each other's far-field, where each LWA pair is designed such that the broadside frequency is the center frequency of its respective channel. Friis transmission equation is used to analytically demonstrate the two proposed applications using Gaussian radiation beams. The LWAs are then implemented using reflection-cancelling slot pairs using substrate integrated waveguide (SIW) technology. Full-wave simulations are used to demonstrate the first application by demultiplexing an incident plane wave into two and four channels using two LWAs. Finally, the two proposed applications are experimentally demonstrated by conducting horn-to-LWA and LWA-to-LWA transmission measurements and successfully showing broadband frequency discrimination. The proposed LWAs provide a simple, compact, high-efficiency, and low-profile multiplexing/demultiplexing solution with high-integration capability with other circuitry. Compared to conventional multiplexers, the proposed solution does not require matching networks and can be directly scaled to higher frequencies using the same architecture.
description: 11 pages, 9 figures