cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Cancellaria effosa Handmann 1882
Creators: name: Harzhauser, Mathias
name: Landau, Bernard
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Neogastropoda
Cancellariidae
Cancellaria
Cancellaria effosa

description: Cancellaria effosa Handmann, 1882
 A valid Latin description is presented by Handmann (1882) but no illustration is provided. The material is lost and we consider this taxon a nomen dubium.
Vienna Basin, Badenian.
description: Published as part of Harzhauser, Mathias & Landau, Bernard, 2012, A revision of the Neogene Cancellariid Gastropods of the Paratethys Sea 3472, pp. 1-71 in Zootaxa 3472 on page 63
An Assessment of the Impact of Kilimo Plus Subsidy Program on Smallholder Farmers' Food Security and Income in Nakuru North District, Kenya
Creators: name: Murathi Kiratu, Nixon
name: Murathi Kiratu, Nixon
Publisher: name: Unknown
Year: 2014
Subjects: Farm Management
Food Security and Poverty

description: Poverty and food insecurity still plague the world today despite an effort by world leaders to address these two major problems through initiatives such as the Millennium Development Goals. Majority of the world‘s population who suffer from poverty and food insecurity live in rural areas and rely on agriculture and agricultural related activities for their livelihood. Increasing productivity has been cited as a way of increasing farmers‘ incomes and reducing their food insecurity at the household level. Stakeholders have thus advocated for the use of subsidies through such programs as Kilimo Plus in an attempt to provide the farmers with the essential inputs that are necessary to increase production. The program aims to increase smallholders‘ productivity by providing fertilizer and certified seeds. This study sought to determine the perception of farmers towards this program, the factors that influence the farmers‘ perception towards the program and the program‘s impact on food security and incomes of the smallholder farmers‘ households. A sample of 400 smallholder households, comprising of both the beneficiaries and non-beneficiaries of the Kilimo Plus program were selected. Data was collected with the aid of a semi-structured questionnaire. The first objective was analysed using descriptive statistics, the second objective using an ordered probit model and the third and fourth objectives using propensity score matching technique. The descriptive analysis showed that the farmers‘ perception of the Kilimo Plus program was good. The ordered probit regression results showed that the factors that significantly influenced the farmers perception were the gender of the household head, farm size, being in the Kilimo Plus program, being the household head, having an incomplete primary school education and learning of the Kilimo Plus program through a friend or neighbour, farmer group or radio, production increase and training on farming and inputs use. The propensity score matching model analysis showed that the program had a positive impact on food security and income. The government should however aim at improving the program by giving the right kind of inputs to the farmers and at the right time. Furthermore, the program should be extended in order to have a long-term impact on the smallholder farmers‘ food security and income.
description: A Thesis Submitted to the Graduate School in Partial Fulfilment for the Requirement of the Award of the Degree of Master of Science in Agricultural and Applied Economics of Egerton University. Advisors: Prof. Margaret Ngigi and Prof. Patience Mshenga
Iphiclus (Brachymerus) costaricensis Skelley 2020, new combination
Creators: name: Skelley, Paul E.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Erotylidae
Iphiclus
Iphiclus costaricensis

description: Iphiclus (Brachymerus) costaricensis (Mader), new combination
 Brachysphoenus (Morphoides) costaricensis Mader 1943: 113.
 Iphiclus (Neomorphoides) costaricensis (Mader) ~ Alvarenga 1994: 77.
description: Published as part of Skelley, Paul E., 2020, Nomenclatural notes for the Erotylinae (Coleoptera: Erotylidae), pp. 1-35 in Insecta Mundi 2020 (767) on page 12, DOI: 10.5281/zenodo.5353590
Bulk scalar field in the braneworld can mimic the 4D inflaton dynamics
Creators: name: Himemoto, Yoshiaki
name: Tanaka, Takahiro
name: Sasaki, Misao
Publisher: name: arXiv
Year: 2001
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Based on the recently proposed scenario of inflation driven by a bulk scalar field in the braneworld of the Randall-Sundrum (RS) type, we investigate the dynamics of a bulk scalar field on the inflating braneworld. We derive the late time behavior of the bulk scalar field by analyzing the property of the retarded Green function. We find that the late time behavior is basically dominated by a single (or a pair of) pole(s) in the Green function irrespective of the initial condition and of the signature of $m^{2}=V''(ϕ)$, where $V(ϕ)$ is the potential of the bulk scalar field. Including the lowest order back-reaction to the geometry, this late time behavior can be well approximated by an effective 4-dimensional scalar field with $m^2_{\mathrm{eff}}=m^2/2$. The mapping to the 4-dimensional effective theory is given by a simple scaling of the potential with a redefinition of the field. Our result supports the picture that the scenario of inflation driven by a bulk scalar field works in a quite similar way to that in the standard 4-dimensional cosmology.
description: 12 pages, no figures, final version to be published in PRD
Infrared Properties of Cataclysmic Variables from 2MASS: Results from the 2nd Incremental Data Release
Creators: name: Hoard, D. W.
name: Wachter, S.
name: Clark, L. Lee
name: Bowers, Timothy P.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Because accretion-generated luminosity dominates the radiated energy of most cataclysmic variables, they have been ``traditionally'' observed primarily at short wavelengths. Infrared observations of cataclysmic variables contribute to the understanding of key system components that are expected to radiate at these wavelengths, such as the cool outer disk, accretion stream, and secondary star. We have compiled the J, H, and Ks photometry of all cataclysmic variables located in the sky coverage of the 2 Micron All Sky Survey (2MASS) 2nd Incremental Data Release. This data comprises 251 systems with reliably identified near-IR counterparts and S/N > 10 photometry in one or more of the three near-IR bands.
description: 2 pages, including 1 figure. To appear in the proceedings of The Physics of Cataclysmic Variables and Related Objects, Goettingen, Germany. For our followup ApJ paper (in press), also see http://www.ctio.noao.edu/~hoard/research/2mass/index.html
HOW IMPORTANT ARE CROP SHARES IN MANAGING RISK FOR SPECIALIZED ARABLE FARMS? A PANEL ESTIMATION OF A PROGRAMMING MODEL FOR THREE EUROPEAN REGIONS
Creators: name: Britz, Wolfgang
name: Linda, Arata
name: Britz, Wolfgang
name: Linda, Arata
Publisher: name: Unknown
Year: 2016
Subjects: subject: Production Economics
subject: Research Methods/ Statistical Methods
subject: Risk and Uncertainty
subject: Risk
subject: dual cost function estimation
subject: programming model

description: We present a dual cost function estimation for total farm cost in a programming model setup, with individual crop shares and expected yields as arguments, estimated simultaneously with risk behaviour. Using large unbalanced samples of specialized arable farms from Northern Italy, the French Grandes Culture Region and Cologne-Aachen in Germany that are observed for at least three consecutive years over the time period 1995-2008, we find a quite satisfactory fit for crop shares and total costs. We implement two model variants where zero crop observations are considered only in the second variant. Our results indicate that the specialized arable crop farmers in the samples use crop shares only to a limited degree as an instrument of risk management. We find moderate technical progress and large efficiency differences between farms.
Probing the Intergalactic Medium with the Lyman alpha forest along multiple lines of sight to distant QSOs
Creators: name: Viel, M.
name: Matarrese, S.
name: Mo, H. J.
name: Haehnelt, M. G.
name: Theuns, Tom
Publisher: name: arXiv
Year: 2001
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: (abridged) We present an effective implementation of analytical calculations of the Lyalpha opacity distribution of the Intergalactic Medium (IGM) along multiple lines of sight (LOS) to distant quasars in a cosmological setting. This method fully accounts for the expected correlations between LOS and the cosmic variance in the large-scale modes of the dark matter distribution. Strong correlations extending up to ~300 kpc (proper) and more are found at redshift z~2->3, in agreement with observations. These correlations are investigated using the cross-correlation coefficient and the cross-power spectrum of the flux distribution along different LOS and by identifying coincident absorption features as fitted with a Voigt profile fitting routine. The cross-correlation coefficient between the LOS can be used to constrain the shape-parameter Gamma of the power spectrum if the temperature and the temperature density relation of the IGM can be determined indepedently. We also propose a new technique to recover the 3D linear dark matter power spectrum by integrating over 1D flux cross-spectra which is complementary to the usual `differentiation' of 1D auto-spectra. The cross-power spectrum suffers much less from errors uncorrelated in different LOS, like those introduced by continuum fitting. Investigations of the flux correlations in adjacent LOS should thus allow to extend studies of the dark matter power spectrum with the Lyalpha forest to significantly larger scales than is possible with flux auto-power spectra. 30 pairs with separation of 1-2 arcmin should be sufficient to determine the 1D cross-spectrum at scales of 60 Mpc/h with an accuracy of about 30% if the error is dominated by cosmic variance.
description: 22 pages, 13 Figures, Latex using MN style. Minor changes. Accepted for publication in MNRAS
Iphiclus (Brachymerus) disconigrum Skelley 2020, new combination
Creators: name: Skelley, Paul E.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Erotylidae
Iphiclus
Iphiclus disconigrum

description: Iphiclus (Brachymerus) disconigrum (Mader), new combination
 Brachysphoenus (Morphoides) disconigrum Mader 1942b: 185.
 Iphiclus (Neomorphoides) disconigrum (Mader) ~ Alvarenga 1994: 77.
description: Published as part of Skelley, Paul E., 2020, Nomenclatural notes for the Erotylinae (Coleoptera: Erotylidae), pp. 1-35 in Insecta Mundi 2020 (767) on page 12, DOI: 10.5281/zenodo.5353590
Quantum effects in a rotating spacetime
Creators: name: Radu, Eugen
name: Astefanesei, Dumitru
Publisher: name: arXiv
Year: 2001
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The behavior of a arbitrary coupled quantum scalar field is studied in the background of the Gödel spacetime. Closed forms are derived for the effective action and the vacuum expectation value of quadratic field fluctuations by using $ζ$-function regularization. Based on these results, we argue that causality violation presented in this spacetime can not be removed by quantum effects.
description: 17 pages, LaTex
Kinematic properties of gas and stars in 20 disc galaxies
Creators: name: Beltran, J. C. Vega
name: Pizzella, A.
name: Corsini, E. M.
name: Funes, J. G.
name: Zeilinger, W. W.
name: Beckman, J. E.
name: Bertola, F.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Ionized gas and stellar kinematical parameters have been measured along the major axis of 20 nearby disc galaxies. We discuss the properties of each sample galaxy distinguishing between those characterized by regular or peculiar kinematics. In early-type disc galaxies ionized gas tends to rotate faster than stars and to have a lower velocity dispersion, whereas in late-type spirals gas and stars show almost the same rotation velocities and velocity dispersions. Incorporating the early-type disc galaxies studied by Bertola et al. (1995), Fisher (1997) and Corsini et al. (1999), we have compiled a sample of some 40 galaxies for which the major-axis radial profiles of both the stellar and gaseous components have been measured. The value of the stellar velocity dispersion measured at Re/4 turns out to be strongly correlated with the galaxy morphological type, while the gaseous velocity dispersion is not and sometimes takes values above the range expected from thermal motions or small-scale turbulence.
description: 18 pages, 40 postscript figures. Accepted to be published in A&A. Higher resolution images available at: http://www.iac.es/folleto/research/Publi01/preprints01.html click over the "postscript file" of PP17/2001
SOM Table 3 from A conservation palaeobiological perspective on Chesapeake Bay oysters
Creators: name: Lockwood, Rowan
name: Mann, Roger
Publisher: name: The Royal Society
Year: 2019
Subjects: subject: Environmental Science
subject: Ecology
subject: FOS: Biological sciences
subject: 40308 Palaeontology (incl. Palynology)
subject: FOS: Earth and related environmental sciences

description: Population demographic data used in filtration calculations for Holland Point (HP, Pleistocene) and Brown Shoal (BS, modern) assemblages. Data represent the number of right valves of different shell lengths in each assemblages.
Evolution of nematic and ferromagnetic ordering in suspensions of magnetic nanoplatelets
Creators: name: Mertelj, Alenka
name: Lampret, Borut
name: Lisjak, Darja
name: Klepp, Jürgen
name: Kohlbrecher, Joachim
name: Čopič, Martin
Publisher: name: arXiv
Year: 2019
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Suspensions of magnetic nanoplatelets in isotropic solvents are very interesting examples of ferrofluids. It has been shown that above a certain concentration ΦNI such suspensions form a ferromagnetic nematic phase, which makes this system a unique example of a dipolar fluid. The formation of a nematic phase is driven by anisotropic electrostatic and long-range dipolar magnetic interactions. Here, we present studies of the evolution of short range positional and orientational magnetic order in the suspensions with volume fractions below and above ΦNI, using small angle neutron scattering (SANS). The results show that in the absence of an external magnetic field, short range positional and orientational order already exist at relatively low volume fractions. Polarized SANS revealed that the contribution of ferromagnetic ordering to the formation of the nematic phase is significant. The ferromagnetic correlations can be qualitatively explained by a simple model, which takes into account anisotropic screened electrostatic and dipolar magnetic interactions.
description: 8 pages, 7 figures
Harana Almeida & Carbayo 2023, GEN. NOV.
Creators: name: Almeida, Ana Laura
name: Álvarez-Presas, Marta
name: Carbayo, Fernando
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Platyhelminthes
Tricladida
Geoplanidae
Harana

description: HARANA ALMEIDA & CARBAYO GEN. NOV.
Zoobank registration: urn: lsid: zoobank. org:act: 210B29EE-FC98-40C1-9EF0-FD6AC66E3B11
Type species: Harana harai Almeida & Carbayo sp. nov.
Diagnosis: Haranini with a subcylindrical, small-sized body, approximately 8 mm long. Creeping sole wide. Eyes and sensory pits surround the cephalic region. Eyes marginal. Thickness of cutaneous muscle relative to the body height, 2.3%. Prostatic vesicle extrabulbar. Penis papilla cylindrical. Common ovovitelline duct located ventroposteriorly to female atrium. Female genital canal projects posteriorly from the dorsal region of the female atrium.
Etymology: Harana is derived from, and an homage to, Prof. Dr Marcos Ryotaro Hara (University of São Paulo) for his contributions to the scientific education of undergraduate and graduate students. The gender is feminine.
Distribution: As for that of the tribe.
description: Published as part of Almeida, Ana Laura, Álvarez-Presas, Marta & Carbayo, Fernando, 2023, The discovery of new Chilean taxa revolutionizes the systematics of Geoplaninae Neotropical land planarians (Platyhelminthes: Tricladida), pp. 837-898 in Zoological Journal of the Linnean Society 197 (4) on pages 859-861, DOI: 10.1093/zoolinnean/zlac072, http://zenodo.org/record/7813977
Parrondo Strategies for Artificial Traders
Creators: name: Boman, Magnus
name: Johansson, Stefan
name: Lyback, David
Publisher: name: arXiv
Year: 2002
Subjects: subject: Computational Engineering, Finance, and Science (cs.CE)
subject: FOS: Computer and information sciences
subject: I.2.11; J.4; K.4.4

description: On markets with receding prices, artificial noise traders may consider alternatives to buy-and-hold. By simulating variations of the Parrondo strategy, using real data from the Swedish stock market, we produce first indications of a buy-low-sell-random Parrondo variation outperforming buy-and-hold. Subject to our assumptions, buy-low-sell-random also outperforms the traditional value and trend investor strategies. We measure the success of the Parrondo variations not only through their performance compared to other kinds of strategies, but also relative to varying levels of perfect information, received through messages within a multi-agent system of artificial traders.
description: 10 pages, 4 figures
Path integral Monte Carlo for dissipative many-body systems
Creators: name: Capriotti, Luca
name: Cuccoli, Alessandro
name: Fubini, Andrea
name: Tognetti, Valerio
name: Vaia, Ruggero
Publisher: name: arXiv
Year: 2002
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We address the possibility of performing numerical Monte Carlo simulations for the thermodynamics of quantum dissipative systems. Dissipation is considered within the Caldeira-Leggett formulation, which describes the system in the path-integral formalism through the inclusion of an influence action that is bilocal and quadratic in the system's coordinates. At a first sight the usual direct approach of discretizing the path integral could seem feasible, but complications arise when one tries to introduce a physically meaningful dissipation kernel: in particular its imaginary-time dependence turns out to be severely singular and difficult to evaluate analytically, in spite of the simple expressions for its Matsubara components. We therefore propose to face the numerical problem using Fourier path-integral Monte Carlo, that can be formulated in two different ways: transforming the continuous paths and then truncating the high Fourier components (with possible improvements upon the truncation procedure), or performing the Fourier transformation upon the discretized paths. The latter choice leads to a simpler formulation and allows for a better control of the extrapolation to the limit of infinite Trotter number. The method is implemented for a single nonlinear particle with Ohmic dissipation and for a phi^4 chain with Drude-like dissipation.
description: 10 pages, 5 figures, contribution to the "Festschrift" dedicated to Prof. Jozef T. Devreese
Analyzing Trends in Herbicide Use in Sub-Saharan Africa
Creators: name: Grabowski, Philip
name: Jayne, Thom
name: Grabowski, Philip
name: Jayne, Thom
Publisher: name: Unknown
Year: 2016
Subjects: Productivity Analysis

description: Chemical weed control has been researched in Africa since the 1960s but adoption has been low or non-existent for decades. Recent evidence suggests that herbicide use in some parts of Africa is reaching significant levels and may be on the rise more generally. Little is known about which farmers are using herbicides in Africa and what factors drive their use. This study aims to document trends in herbicide use and analyze the drivers of those trends in Sub-Saharan Africa.
SOM Table 2 from A conservation palaeobiological perspective on Chesapeake Bay oysters
Creators: name: Lockwood, Rowan
name: Mann, Roger
Publisher: name: The Royal Society
Year: 2019
Subjects: subject: Environmental Science
subject: Ecology
subject: FOS: Biological sciences
subject: 40308 Palaeontology (incl. Palynology)
subject: FOS: Earth and related environmental sciences

description: Oyster population density (total number of right valves of all sizes counted per 50 L) from the Holland Point (HP) Pleistocene reef.
Additional file 1 of Epidemiological and clinical features of pediatric COVID-19
Creators: name: Guo, Cheng-Xian
name: He, Li
name: Yin, Ji-Ye
name: Meng, Xiang-Guang
name: Tan, Wei
name: Yang, Guo-Ping
name: Bo, Tao
name: Liu, Jun-Ping
name: Lin, Xin-Jian
name: Chen, Xiang
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: Developmental Biology
subject: Cancer
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 1: Supplementary Table S1. The distribution and clinical type of confirmed cases in mainland China.
Contortia Sacco 1894
Creators: name: Harzhauser, Mathias
name: Landau, Bernard
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Neogastropoda
Cancellariidae
Contortia

description: Genus Contortia Sacco, 1894
 Type species: by original designation, Cancellaria contorta Basterot, 1825. Early Miocene, France.
description: Published as part of Harzhauser, Mathias & Landau, Bernard, 2012, A revision of the Neogene Cancellariid Gastropods of the Paratethys Sea 3472, pp. 1-71 in Zootaxa 3472 on page 21
Iphiclus (Brachymerus) dorsonotatus Skelley 2020, new combination
Creators: name: Skelley, Paul E.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Erotylidae
Iphiclus
Iphiclus dorsonotatus

description: Iphiclus (Brachymerus) dorsonotatus (Lacordaire), new combination
 Brachysphoenus (Morphoides) dorsonotatus Lacordaire 1842: 370.
 Morphoides dorsonotatus (Lacordaire) ~ Gemminger and Harold 1876: 3708.
 Brachysphaenus [sic] (Morphoides) dorsonotatus (Lacordaire) ~ Kuhnt 1909: 28.
 Iphiclus (Neomorphoides) dorsonotatus (Lacordaire) ~ Alvarenga 1994: 77.
 Brachysphoenus (Morphoides) haematopterus Lacordaire 1842: 371, synonym Crotch 1876: 516.
 Morphoides dorsonotatus var. haematopterus (Lacordaire) ~ Gemminger and Harold 1876: 3708.
description: Published as part of Skelley, Paul E., 2020, Nomenclatural notes for the Erotylinae (Coleoptera: Erotylidae), pp. 1-35 in Insecta Mundi 2020 (767) on page 12, DOI: 10.5281/zenodo.5353590
Nutrition and Food Security: The Role of Forest Resources in Eastern Zambia
Creators: name: Mofya-Mukuka, Rhoda
name: Simoloka, Asunta
name: Mofya-Mukuka, Rhoda
name: Simoloka, Asunta
Publisher: name: Unknown
Year: 2016
Subjects: Agricultural and Food Policy
International Development

description: Forest foods can play a vital role in maintaining balance and variety in people’s diets by providing foods of different food groups and supplying diverse foods within a food group. - A study in Eastern province found that not all food groups are supplied by the forests. - Food groups provided by the forests in the area are non-starchy vegetables, non-starchy fruits and proteins. There is at least one forest food in each meal in addition to the wild fruits consumed as snacks.
Iphiclus (Brachymerus) fabricii Skelley
Creators: name: Skelley, Paul E.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Erotylidae
Iphiclus
Iphiclus fabricii

description: Iphiclus (Brachymerus) fabricii Skelley, new name
 Erotylus rufipennis Fabricius 1801: 8, not Erotylus rufipennis Panzer 1798: 39. [see discussion in Section VII] Iphiclus (Neomorphoides) rufipennis (Fabricius) ~ Alvarenga 1994: 78.
 Brachysphoenus (Morphoides) immaculatus Lacordaire 1842: 369; synonymy by Chevrolat 1843: 79. Morphoides immaculatus (Lacordaire) ~ Gemminger and Harold 1876: 3709.
 Brachysphaenus [sic] (Morphoides) immaculatus (Lacordaire) ~ Kuhnt 1909: 28.
description: Published as part of Skelley, Paul E., 2020, Nomenclatural notes for the Erotylinae (Coleoptera: Erotylidae), pp. 1-35 in Insecta Mundi 2020 (767) on page 12, DOI: 10.5281/zenodo.5353590
Skewness of nuclear matter and three-particle correlations
Creators: name: Bentz, Wolfgang
name: Cloet, Ian C.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We present a study of the skewness of nuclear matter, which is proportional to the third derivative of the energy per nucleon with respect to the baryon density at the saturation point, in the framework of the Landau-Migdal theory. We derive an exact relation between the skewness, the nucleon effective mass, and two-particle and three-particle interaction parameters. We also present qualitative estimates, which indicate that three-particle correlations play an important role for the skewness.
description: 8 pages, 5 figures
Smallholder Cropping and Input Responses to Changes in Expected Prices and Market Access in Central and Northern Mozambique, 2008‐2011
Creators: name: Mather, David
name: Cunguara, Benedito
name: Tschirley, David
name: Mather, David
name: Cunguara, Benedito
name: Tschirley, David
Publisher: name: Unknown
Year: 2015
Subjects: International Development
Production Economics
Productivity Analysis

description: Recent analysis of domestic prices of key staple crops in several major retail markets in Mozambique finds that due to increased demand from both international and domestic sources, since 2008, the country’s consumers and producers of staple crops appear to have entered a new higher-price environment for domestic food staples. This situation creates both a challenge and an opportunity for Mozambique, which is commonly referred to as the food price dilemma. In short, the dilemma for the Government of Mozambique (GoM)policymakers is that urban consumers (and the majority of rural households who are net buyers of key staple foods like maize) prefer lower food prices (relative to other prices in the economy) as this improves their welfare.
Simulations of MHD Turbulence in a Strongly Magnetized Medium
Creators: name: Cho, Jungyeon
name: Lazarian, Alex
name: Vishniac, Ethan
Publisher: name: arXiv
Year: 2001
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We analyze 3D numerical simulations of driven incompressible magnetohydrodynamic (MHD) turbulence in a periodic box threaded by a moderately strong external magnetic field. We sum over nonlinear interactions within Fourier wavebands and find that the time scale for the energy cascade is consistent with the Goldreich-Sridhar model of strong MHD turbulence. Using higher order longitudinal structure functions we show that the turbulent motions in the plane perpendicular to the local mean magnetic field are similar to ordinary hydrodynamic turbulence while motions parallel to the field are consistent with a scaling correction which arises from the eddy anisotropy. We present the structure tensor describing velocity statistics of Alfvenic and pseudo-Alfvenic turbulence. Finally, we confirm that an imbalance of energy moving up and down magnetic field lines leads to a slow decay of turbulent motions and speculate that this imbalance is common in the interstellar medium where injection of energy is intermittent both in time and space.
description: ApJ accepted, 29 pages, 10 figures; some revisions, new figures
Improved Agricultural Technology Adoption in Zambia: Are Women Farmers Being Left Behind?
Creators: name: Namonje-Kapembwa, Thelma
name: Thelma, Antony
name: Namonje-Kapembwa, Thelma
name: Thelma, Antony
Publisher: name: Unknown
Year: 2016
Subjects: Agricultural and Food Policy
International Development

description: The use of modern seed varieties and other improved technologies is essential for farmers to significantly increase their crop harvest and improve their livelihoods. All over Sub-Saharan Africa, agriculture productivity growth has remained very low over many decades irrespective of gender of the farmer. However, studies have shown that women farmers fare worse than the male counterparts in terms of adoption of improved technology and productivity. This gender gap in technology adoption curtails agricultural development because women in developing countries such as Zambia play a significant role in agriculture and food production.
Chemical abundances in an UV-selected sample of galaxies
Creators: name: Contini, T.
name: Treyer, M. A.
name: Sullivan, M.
name: Ellis, R. S.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We discuss the chemical properties of a sample of UV-selected intermediate-redshift (0 < z < 0.4) galaxies in the context of their physical nature and star formation history. This work represents an extension of our previous studies (Treyer et al. 1998; Sullivan et al. 2000, 2001) on UV-selected galaxies. We revisit the optical spectra of these galaxies and perform further emission-line measurements restricting the analysis to those spectra with the full set of emission lines required to derive chemical abundances. Our final sample consists of 68 galaxies with heavy element abundance ratios and both UV and CCD B-band photometry. Diagnostics based on emission-line ratios show that all but one of the galaxies in our sample are powered by hot, young stars rather than by an AGN. Oxygen-to-hydrogen (O/H) and nitrogen-to-oxygen (N/O) abundance ratios are compared to those for various local and intermediate-redshift samples. Our UV-selected galaxies span a wide range of oxygen abundances, from 0.1 Zsun to solar, intermediate between low-mass HII galaxies and massive starburst nuclei. For a given oxygen abundance, most have strikingly low N/O values. Moreover, UV-selected and HII galaxies systematically deviate from the usual metallicity-luminosity relation in the sense of being more luminous by 2-3 magnitudes. Adopting the "delayed-release" chemical evolution model, we propose our UV-selected sources are observed at a special stage in their evolution, following a powerful starburst which enriched their ISM in oxygen and temporarily lowered their mass-to-light ratios. We discuss briefly the implications of our conclusions on the nature of similarly-selected high-redshift galaxies.
description: 17 pages, 10 figures, and 2 tables. Accepted for publication in MNRAS
Hamiltonian Analysis of Poincaré Gauge Theory: Higher Spin Modes
Creators: name: Yo, H. J.
name: Nester, J. M.
Publisher: name: arXiv
Year: 2001
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We examine several higher spin modes of the Poincaré gauge theory (PGT) of gravity using the Hamiltonian analysis. The appearance of certain undesirable effects due to non-linear constraints in the Hamiltonian analysis are used as a test. We find that the phenomena of field activation and constraint bifurcation both exist in the pure spin 1 and the pure spin 2 modes. The coupled spin-$0^-$ and spin-$2^-$ modes also fail our test due to the appearance of constraint bifurcation. The ``promising'' case in the linearized theory of PGT given by Kuhfuss and Nitsch (KRNJ86) likewise does not pass. From this analysis of these specific PGT modes we conclude that an examination of such nonlinear constraint effects shows great promise as a strong test for this and other alternate theories of gravity.
description: 30 pages, submitted to Int. J. Mod. Phys. D
Equivalence of the Falicov-Kimball and Brandt-Mielsch forms for the free energy of the infinite-dimensional Falicov-Kimball model
Creators: name: Shvaika, A. M.
name: Freericks, J. K.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Falicov and Kimball proposed a real-axis form for the free energy of the Falicov-Kimball model that was modified for the coherent potential approximation by Plischke. Brandt and Mielsch proposed an imaginary-axis form for the free energy of the dynamical mean field theory solution of the Falicov-Kimball model. It has long been known that these two formulae are numerically equal to each other; an explicit derivation showing this equivalence is presented here.
description: 4 pages, 1 figure, typeset with ReVTeX
Inakayaliini Almeida & Álvarez-Presas & Carbayo 2023, TRIB. NOV.
Creators: name: Almeida, Ana Laura
name: Álvarez-Presas, Marta
name: Carbayo, Fernando
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Platyhelminthes
Tricladida
Geoplanidae

description: INAKAYALIINI ALMEIDA & CARBAYO TRIB. NOV.
Zoobank registration: urn: lsid: zoobank. org:act: F05D2D2C-DCE4-4CBE-804D-0911624AF095
Diagnosis: Geoplaninae with female genital ducts dilated. Inakayaliini comprises only the genus Inakayalia.
Type genus: Inakayalia Negrete et al., 2020.
Etymology: The name of the tribe is based on the name of its type genus.
Distribution: Regions Los Ríos, La Araucanía and O’Higgins (Chile); Neuquén Province (Argentina).
description: Published as part of Almeida, Ana Laura, Álvarez-Presas, Marta & Carbayo, Fernando, 2023, The discovery of new Chilean taxa revolutionizes the systematics of Geoplaninae Neotropical land planarians (Platyhelminthes: Tricladida), pp. 837-898 in Zoological Journal of the Linnean Society 197 (4) on page 863, DOI: 10.1093/zoolinnean/zlac072, http://zenodo.org/record/7813977
Iphiclus (Brachymerus) fulviventris Skelley 2020, new combination
Creators: name: Skelley, Paul E.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Erotylidae
Iphiclus
Iphiclus fulviventris

description: Iphiclus (Brachymerus) fulviventris (Gorham), new combination
 Brachysphenus [sic] (Morphoides) fulviventris Gorham 1888: 97.
 Brachysphaenus [sic] (Morphoides) fulviventris (Gorham) ~ Kuhnt 1909: 28.
 Iphiclus (Neomorphoides) fulviventris (Gorham) ~ Alvarenga 1994: 77.
description: Published as part of Skelley, Paul E., 2020, Nomenclatural notes for the Erotylinae (Coleoptera: Erotylidae), pp. 1-35 in Insecta Mundi 2020 (767) on page 12, DOI: 10.5281/zenodo.5353590
A TDDFT-based Study on the Proton-DNA Collision
Creators: name: Seraide, R.
name: Bernal, M. A.
name: Brunetto, G.
name: de Giovannini, U.
name: Rubio, A.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: The interaction of heavy charged particles with DNA is of interest for several areas, from hadrontherapy to aero-space industry. In this paper, a TD-DFT study on the interaction of a 4 keV proton with an isolated DNA base pair was carried out. Ehrenfest dynamics was used to study the evolution of the system during and after the proton impact up to about 193 fs. This time was long enough to observe the dissociation of the target, which occurs between 80-100 fs. The effect of base pair linking to the DNA double helix was emulated by fixing the four O3' atoms responsible for the attachment. The base pair tends to dissociate into its main components, namely the phosphate groups, sugars and nitrogenous bases. A central impact with energy transfer of 17.9 eV only produces base damage while keeping the backbone intact. An impact on a phosphate group with energy transfer of about 60 eV leads to backbone break at that site together with base damage, while the opposite backbone site integrity is kept is this situation. As the whole system is perturbed during such a collision, no atom remains passive. These results suggest that base damage accompanies all backbone breaks since hydrogen bonds that keep bases together are much weaker that those between the other components of the DNA.
Supplemental Figures and Methods for McGlynn, Meineke et al. from Temperature accounts for the biodiversity of a hyperdiverse group of insects in urban Los Angeles
Creators: name: McGlynn, Terrence P.
name: Meineke, Emily K.
name: Bahlai, Christie A.
name: Enjie Li
name: Hartop, Emily A.
name: Adams, Benjamin J.
name: Brown, Brian V.
Publisher: name: The Royal Society
Year: 2019
Subjects: subject: Ecology
subject: FOS: Biological sciences

description: Additional figures and methods for the collection of abiotic data and processing
Functional Weak Limit of Random Walks in Cooling Random Environment
Creators: name: Xie, Yongjia
Publisher: name: arXiv
Year: 2019
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60F17, 60G50, 60K37

description: We prove an annealed weak limit of the trajectory of the random walks in cooling random environment (RWCRE) under both slow (polynomial) and fast (exponential) cooling. We identify the weak limit when the underlying static environment is recurrent (Sinai's model). Avena and den Hollander have previously proved law of large numbers and Gaussian fluctuation of RWCRE. We find that the weak limit of the trajectory exists as a time-rescaled Brownian motion in the slow cooling case but the limit degenerates to a constant function in the fast cooling case.
description: 10 pages
Asymmetrical intra-guild predation and niche differentiation in two pit-building antlions: supplementary material
Creators: name: Ovadia, Ofer
name: Inon Scharf
name: Barkae, Erez David
name: Levi, Tanya
name: Alcalay, Yehonatan
Publisher: name: Brill Online
Year: 2019
Subjects: subject: 60299 Ecology not elsewhere classified
subject: FOS: Biological sciences

description: Co-occurring species often compete with each other directly and indirectly. Intra-guild predation (IGP) is an extreme manifestation of direct competition, which involves the attack, killing and eating of potential competitors. We studied the competitive interactions between two pit-building antlion species that co-occur in the Israeli desert: Myrmeleon hyalinus residing in the more productive sandy soil, and Cueta lineosa solely inhabiting poorer loess soils. To understand the mechanisms driving C. lineosa away from the more productive habitat, we explored the factors triggering IGP of one antlion species on the other. We tested whether IGP is affected by soil type, depth and temperature. IGP was asymmetrical with M. hyalinus preying on C. lineosa, and it intensified as the size difference favoring the former increased. Interactive rather than additive effects governed IGP, which was lowest in sandy soil combined with low temperature, and highest in shallow loess soil. C. lineosa possesses a smaller head and thorax relative to its abdomen compared to M. hyalinus, providing a possible explanation for the advantage of M. hyalinus in direct competition. We then focused on the weaker competitor, C. lineosa, examining how it copes with competition induced by M. hyalinus. Both the growth and survival rates of C. lineosa declined in the presence of M. hyalinus. The asymmetrical IGP C. lineosa experiences from M. hyalinus combined with its competitive inferiority may explain why it is mostly found in poor habitats, while its intra-guild competitor is abundant in the more productive habitats.
Iphiclus (Brachymerus) humeropictus Skelley 2020, new combination
Creators: name: Skelley, Paul E.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Erotylidae
Iphiclus
Iphiclus humeropictus

description: Iphiclus (Brachymerus) humeropictus (Mader), new combination
 Brachysphoenus (Morphoides) humeropictus Mader 1943: 113.
 Iphiclus (Neomorphoides) humeropictus (Mader) ~ Alvarenga 1994: 77.
description: Published as part of Skelley, Paul E., 2020, Nomenclatural notes for the Erotylinae (Coleoptera: Erotylidae), pp. 1-35 in Insecta Mundi 2020 (767) on page 12, DOI: 10.5281/zenodo.5353590
Indirect $\mathcal{CP}$ probes of the Higgs-top-quark interaction: current LHC constraints and future opportunities
Creators: name: Bahl, Henning
name: Bechtle, Philip
name: Heinemeyer, Sven
name: Katzy, Judith
name: Klingl, Tobias
name: Peters, Krisztian
name: Saimpert, Matthias
name: Stefaniak, Tim
name: Weiglein, Georg
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2021
Subjects: subject: 530
subject: Higgs particle: coupling
subject: top: coupling
subject: coupling: Yukawa
subject: coupling: (Higgs particle top anti-top)
subject: top: pair production
subject: CP: violation
subject: phase: CP
subject: gluon gluon: fusion
subject: CERN LHC Coll
subject: ATLAS
subject: CMS
subject: CERN LHC Coll: upgrade
subject: statistical analysis
subject: numerical calculations
subject: new physics
subject: Beyond Standard Model
subject: CP violation
subject: Higgs Physics

description: The $ \mathcal{CP} $ structure of the Higgs boson in its coupling to the particles of the Standard Model is amongst the most important Higgs boson properties which have not yet been constrained with high precision. In this study, all relevant inclusive and differential Higgs boson measurements from the ATLAS and CMS experiments are used to constrain the $ \mathcal{CP} $-nature of the top-Yukawa interaction. The model dependence of the constraints is studied by successively allowing for new physics contributions to the couplings of the Higgs boson to massive vector bosons, to photons, and to gluons. In the most general case, we find that the current data still permits a significant $ \mathcal{CP} $-odd component in the top-Yukawa coupling. Furthermore, we explore the prospects to further constrain the $ \mathcal{CP} $ properties of this coupling with future LHC data by determining tH production rates independently from possible accompanying variations of the $ t\overline{t}H $ rate. This is achieved via a careful selection of discriminating observables. At the HL-LHC, we find that evidence for tH production at the Standard Model rate can be achieved in the Higgs to diphoton decay channel alone.
The most general axially symmetric electrovac spacetime adimitting separable equations of motion
Creators: name: Dadhich, Naresh
name: Turakulov, Z. Ya.
Publisher: name: arXiv
Year: 2001
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We obtain the most general solution of the Einstein electro - vacuum equation for the stationary axially symmetric spacetime in which the Hamilton-Jacobi and Klein - Gordon equations are separable. The most remarkable feature of the solution is its invariance under the duality transformation involving mass and NUT parameter, and the radial and angle coordinates. It is the general solution for a rotating (gravitational dyon) particle which is endowed with both gravoelectric and gravomagnetic charges, and there exists a duality transformation from one to the other. It also happens to be a transform of the Kerr - NUT solution. Like the Kerr family, it is also possible to make this solution radiating which asymptotically conforms to the Vaidya null radiation.
description: 9 pages, RevTex, Accepted by Class. Quantum Grav. Title, Abstract and some expressions have been modified, typos corrected. The solution and main result remain unaltered
The V-EUV Delay for Dwarf Nova Outbursts: A Case Study for VW Hydri, U Geminorum, and SS Cygni
Creators: name: Cannizzo, J. K.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a parameter study using time dependent calculations of the thermal limit cycle model for dwarf nova outbursts. Our goal is to delineate the dependence of the delay between the initial rapid rise of the visual and EUV fluxes during the start of an outburst on model parameters, concentrating on three bright, nearby systems for which complete optical and EUV observations exist - VW Hyi, U Gem, and SS Cyg. For these systems we infer that the outburst must be triggered at ~0.7-0.8 of the outer disk radius to produce delays which are in accord with observations. We also see a stagnation or period of slow warming (first noted by Mineshige) during the early stages of thermal instability, but find it does not influence the V-EUV delay since it precedes the rapid rise in V at the start of the outburst. We find that if one decreases the surface density in the inner disk, interior to the instigation radius, the V-EUV delay can be lengthened by as much as a factor of two. In addition, we find there to be a weak relation between the V-EUV delay and the value of the alpha viscosity parameter in quiescence.
description: 30 pages, 12 Postscript figures, ApJ, v. 556 (2001 Aug 1)
Ab initio calculations of p-shell nuclei up to N2LO in chiral Effective Field Theory
Creators: name: Maris, Pieter
Publisher: name: arXiv
Year: 2019
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Nuclear structure and reaction theory are undergoing a major renaissance with advances in many-body methods, realistic interactions with greatly improved links to Quantum Chromodynamics, the advent of high performance computing, and improved computational algorithms. State-of-the-art two- and three-nucleon interactions obtained from chiral Effective Field Theory provide a theoretical foundation for nuclear theory with controlled approximations. With highly efficient numerical codes, tuned to the current generation of supercomputers, we can perform ab-initio nuclear structure calculations for a range of nuclei to a remarkable level of numerical accuracy, with quantifiable numerical uncertainties. Here we present an overview of recent results for No-Core Configuration Interaction calculations of p-shell nuclei using these chiral interactions up to next-to-next-to-leading order, including three-body forces. We show the dependence of the ground state energies on the chiral order; we also present excitation spectra for selected nuclei and compare the results with experimental data.
description: 10 pages, to appear in the proceedings of the XLI Brazilian Meeting on Nuclear Physics, Maresias SP, Brazil, Sept. 2018