cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Connotation and Realization of Ningxia Agricultural Organization: Practice Induction and Model Reference
Creators: name: ZHANG Jing
name: WANG Wei
name: REN Yilian
name: BAI Liyan
name: ZHOU Ting
name: ZHANG Jing
name: WANG Wei
name: REN Yilian
name: BAI Liyan
name: ZHOU Ting
Publisher: name: Unknown
Year: 2021
Subjects: subject: Agribusiness
subject: Agricultural organization, Practice model, Farmer household, Modern agriculture

description: Through a large number of literature studies and field survey, from the perspective of small farmers' integration into agricultural modernization, this paper innovatively divided the current integration mode of national agricultural organizations into five main types: leading enterprises, leading new agricultural business entities, cooperative financial institutions, embedded scientific research institutes, and financial poverty alleviation and assistance. It found that Ningxia region can gradually carry out horizontal integration and extension in the process of promoting the vertical integration and extension of agricultural industry value chain, and try to explore the possibility of new integration mode such as “modern agricultural cloud service public platform + leading enterprises + farmers” in Ningxia, in order to bridge the gaps in agricultural organization policies through the pilot, because the village plans to plan the development of the industry, adapt to the local conditions to strengthen the village collective economy, and continuously improve the degree of farmers' organization.
MANAGEMENT OF THE BINUGAS YAM (DIOSCOREA ALATA) IN PUERTO RICO
CONDUITE DE LA CULTURE DE L'IGNAME BINUGAS (DIOSCOREA ALATA) A PORTO RICO
Creators: name: Irizarry, H.
name: Rivera, E.
name: Irizarry, H.
name: Rivera, E.
Publisher: name: Unknown
Year: 1989
Subjects: Crop Production/Industries
Research and Development/Tech Change/Emerging Technologies

description: The Bigunas yam has an extraordinary yielding potential. However, it often produces large-sized and off-shaped tubers which make the product unattractive and difficult to market. Two experiments were conducted to determine the effect of cultural practices on marketable yield and uniformity in size and shape of tubers. In the first experiment ridged and flat rows with and without vine support were evaluated. All plants were spaced .30 m in rows and 1.52 m between rows. In the second experiment the following planting systems were tested : ridged and flat rows with vine support, in-row spacings of .15 and .30 m with a distance between rows of 1.52 m, and three sett sizes averaging 56,112 and 224 g each. The Binugas yam planted in flat rows with and without vine support has a yielding potential of 60,000 to 72,500 kg/ha of marketable tubers. Premium marketable yields of 45,800 kg/ha were obtained when medium size setts (112g) were planted in flat rows spaced at .30 m within the rows. Under these management conditions 85 % of the tubers were of uniform shape and desirable marketable size. L'igname Binugas a un potentiel de rendement extraordinaire. Toutefois, il produit souvent des tubercules volumineux et malformés qui rendent sa production peu attirante et difficile à commercialiser. Deux expérimentations ont été conduite pour déterminer l'effet des systèmes de plantation, de l'espacement et la densité de peuplement et de la taille du plant de semence sur la récolte commercialisable et sur l'uniformité et laforme des tubercules. Dans la première expérimentation quatre systèmes de plantation ont été évalués : des billons avec et sans tuteur et des rangs à plat avec et sans tuteur. Les plants étaient à 0,30 m sur le rang et 1,52 m entre rangs. Dans la seconde expérimentation les traitements suivants ont été essayés : rangs à plat et billons avec 0,15 et 0,30 m sur le rang et 1,52 m entre, d'où 43.170 à 21.585 pl/ha, respectivement et trois poids de semence, 56,112 et 224 g. L'igname Binugas à plat a un rendement potentiel de 60,170 sans tuteur et 72,476 t/ha avec tuteur. Des rendements de qualité commerciale supérieure de 45,800 t/ha ont été obtenus avec 112 g, à plat à 0.30 m. Dans ces conditions 85 % des tubercules sont uniformes et de la taille commerciale souhaitable.
Priochirus SHARP, FROM 1887
Creators: name: Wu, Jie
name: Zhou, Hong-zhang
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Staphylinidae
Priochirus

description: Priochirus Sharp, 1887
 Priochirus Sharp, 1887: 740; Bernhauer, 1903: 116; Bernhauer and Schubert, 1910: 15; Cameron, 1930: 95; Scheerpeltz, 1933: 1001; Greenslade, 1971: 126; Naomi, 1996: 1; Herman, 2001: 1108.
  Type species. –  Priochirus haemorrhous Sharp, 1887, fixed by subsequent designation by Blackwelder, 1952.
description: Published as part of Wu, Jie & Zhou, Hong-zhang, 2007, Taxonomy Of The Subgenus Eutriacanthus Jakobson, Of The Genus Priochirus Sharp, From Southern China, With The Description Of Two New Species From Guangxi And Yunnan (Coleoptera: Staphylinidae: Osoriinae), pp. 267-276 in Raffles Bulletin of Zoology 55 (2) on page 268, DOI: 10.5281/zenodo.4509026
Microbial Community Composition in Crude Oils and Asphalts from the Kurdistan Region of Iraq
Creators: name: Adris G. Shlimon
name: Howri Mansurbeg
name: Rushdy S. Othman
name: Gittel, Antje
name: Aitken, Carolyn M.
name: Head, Ian M.
name: Finster, Kai W.
name: Kjeldsen, Kasper U.
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Space Science
subject: Microbiology
subject: FOS: Biological sciences
subject: Molecular Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Inorganic Chemistry

description: To identify hydrocarbon-degrading microorganisms contributing to the formation of heavy oil we investigated the microbial community composition in different types of crude oils from oil-production facilities and in crude oil and asphalt from different natural seeps from the Kurdistan Region of Iraq (KRI). Crude oils from five out of six production facilities did not contain microorganisms detectable by 16S rRNA gene PCR amplicon sequencing likely reflecting a low microbial abundance in these samples. Crude oil and asphalt from the natural seeps hosted diverse microbial communities. The same phylotypes of uncultivated Deferribacteres and Thermodesulfobacteraceae were predominant community members across crude oils and asphalts from separate geographical locations. Soils surrounding seeps did not contain these phylotypes suggesting that they originate from the subsurface and although they seem commonly detected in hydrocarbon-rich environments their role in hydrocarbon-degradation is unknown. GC-MS analyses showed that mainly aromatic hydrocarbons were present in the crude oil and asphalt and that they were undergoing biodegradation - likely with sulfate and nitrate as terminal oxidants. In agreement, only bssA gene, but not assA gene-carrying microorganisms were detectable in the analyzed sampled. Overall our study identified several abundant uncultivated taxa with likely roles in transformation of nitrate, sulfate and hydrocarbons.
THE PERFORMANCE OF TROPICAL SOYABEAN CULTIVARS IN TRINIDAD
LES PERFORMANCES DE QUATRE CULTIVARS DE SOJA TROPICAL A TRINIDAD
Creators: name: Brathwaite, Richard A.I.
name: Moonoo, Mukesh
name: Brathwaite, Richard A.I.
name: Moonoo, Mukesh
Publisher: name: Unknown
Year: 1989
Subjects: subject: Crop Production/Industries
subject: Research and Development/Tech Change/Emerging Technologies
subject: soyabean cultivars
subject: seed yield
subject: cassava

description: Four tropical soyabean cultivars (TGX 849-294, TGX 536-02, TGX 539-5E and TGX 306-036) from the International Institute of Tropical Agriculture were evaluated in a series of field trials on the University Field Station and cooperative farmer plots. In the planting date study the cultivars gave seed yields ranging from 1,800 to 3,800 kg/ha but exhibited slight response to photoperiod. They flowered in 40 to 70 days and matured in 97 to 138 days after planting with plant heights at harvest ranging from 50 to 90 cm. In the soyabeari/cassava intercrop study, sole crop yield of TGX 849-294 averaged 2,878 kg/ha as against 1,170 kg/ha in the intercrop. The cassava yield of 23,000 kg/ha compensated for the lower soyabean yield in the intercrop. In all trials the four cultivars were confirmed as promiscuous nodulators and generally performed better than the American cultivar, Jupiter. The tropical cultivars did not succumb to any serious pest or disease problem, showed excellent shatter resistance, rapid leaf senescence at maturity and improved seed viability. Cultivar TGX849-294 which matured theearliest and produced the best yields of excellent quality yellow seeds with protein contents of 40 % and oil content of 20 % was identified as the cultivar best suited for cultivation under local conditions. ----- Des cultivars de Soja (TGX 849-249 ; TGX 536-02 ; TGX 539-5E et TGX 306-036) en provenance de l'Institut International d'Agriculture Tropicale sont évalués dans une série d'essais à la station expérimentale de l'Université et chez l'agriculteur. L'étude dates de plantation montre que les cultivars ont donné des rendements allant de 1 800 à 3 800 kg/ha mais présentent une certaine sensibilité à la photopériode. Ils fleurissent après 40-70 jours et mûrissent après 97-138 jours avec des tailles de 50 à 90 cm. Dans l'association soja/manioc, le cultivar TGX 849-294 donne 1 170 Kg/ha contre 2 878 Kg/ha en monoculture. Le rendement en manioc de 23 000 Kg/ha compense le faible rendement en soja. Dans tous les essais les quatres cultivars présentent une nodulation hétérogène mais se révèlent être plus performants que le cultivar américain, Jupiter. Ils n'ont succombé à aucun ravageur revieux ni à aucun problème de maladieet présentent une rapide sénescence foliaire à la maturité et une viabilité accrue des graines.Le cultivar TGX 849-294 qui est le plus précoce et le plus productif en graines jaunes d'excellente qualité, avec des teneurs en protéines de 40 % et en huile de 20 % a été identifié comme le cultivar le mieux adapté aux conditions locales.
Priochirus (Eutriacanthus) Jakobson 1908
Creators: name: Wu, Jie
name: Zhou, Hong-zhang
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Staphylinidae
Priochirus

description: Priochirus (Eutriacanthus) Jakobson, 1908
 Eutriacanthus Jakobson, 1908: 466 (subgenus of Priochirus, replacement name for Triacanthus Bernhauer, 1903); Greenslade, 1971: 137; Greenslade, 1972: 207; Herman, 2001: 1110; Smetana, 2004: 506.
 Type species. – Leptochirus unicolor Laporte, 1835, fixed by objective synonymy with Triacanthus.
 Triacanthus Bernhauer, 1903: 136, 158 (subgenus of Priochirus, preoccupied by Oken, 1817; type species: Leptochirus unicolor Laporte, 1835, fixed by subsequent designation by R. Lucas, 1920:647); Bernhauer & Schubert, 1910: 15 (subgenus of Priochirus); Blackwelder, 1952; 393; Greenslade, 1971: 127 (synonym of Priochirus subgenus Eutriacanthus); Herman, 2001: 1108.
 Triacanthochirus Bernhauer, 1923: 63 (subgenus of Priochirus, replacement name of Triacanthus Bernhauer, 1903; type species: Leptochirus unicolor Laporte, 1835, fixed by objective synonymy with Triacanthus); Cameron, 1930: 96; Scheerpeltz, 1933; 1001; Blackwelder, 1952: 393; Greenslade, 1971: 127 (synonym of Priochirus subgenus Eutriacanthus); Herman, 2001: 1110.
 Diagnosis. – This subgenus may be distinguished from other subgenera of Priochirus by head with a pair of distinct lateral teeth and a prominent median tooth on anterior margin of frontal impression.
description: Published as part of Wu, Jie & Zhou, Hong-zhang, 2007, Taxonomy Of The Subgenus Eutriacanthus Jakobson, Of The Genus Priochirus Sharp, From Southern China, With The Description Of Two New Species From Guangxi And Yunnan (Coleoptera: Staphylinidae: Osoriinae), pp. 267-276 in Raffles Bulletin of Zoology 55 (2) on page 268, DOI: 10.5281/zenodo.4509026
Classification of surface charges for a spin 2 field on a curved background solution
Creators: name: Barnich, Glenn
name: Leclercq, Serge
name: Spindel, Philippe
Publisher: name: arXiv
Year: 2004
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We give an explicit proof of the result that non trivial conserved n-2 forms for a spin 2 field on a background corresponding to a solution to Einstein's equation (with or without cosmological constant) are characterized uniquely by the Killing vector fields of the background.
description: 7 pages Latex file
Linear and nonlinear optical responses in the chiral multifold semimetal RhSi
Creators: name: Ni, Zhuoliang
name: Xu, B.
name: Sanchez-Martinez, M. A.
name: Zhang, Y.
name: Manna, K.
name: Bernhard, C.
name: Venderbos, J. W. F.
name: de Juan, F.
name: Felser, C.
name: Grushin, A. G.
name: Wu, Liang
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Chiral topological semimetals are materials that break both inversion and mirror symmetries. They host interesting phenomena such as the quantized circular photogalvanic effect (CPGE) and the chiral magnetic effect. In this work, we report a comprehensive theoretical and experimental analysis of the linear and non-linear optical responses of the chiral topological semimetal RhSi, which is known to host multifold fermions. We show that the characteristic features of the optical conductivity, which display two distinct quasi-linear regimes above and below 0.4 eV, can be linked to excitations of different kinds of multifold fermions. The characteristic features of the CPGE, which displays a sign change at 0.4 eV and a large non-quantized response peak of around 160 $μ\textrm{A V}^{-2}$ at 0.7 eV, are explained by assuming that the chemical potential crosses a flat hole band at the Brillouin zone center. Our theory predicts that, in order to observe a quantized CPGE in RhSi, it is necessary to increase the chemical potential as well as the quasiparticle lifetime. More broadly our methodology, especially the development of the broadband terahertz emission spectroscopy, could be widely applied to study photo-galvanic effects in noncentrosymmetric materials and in topological insulators in a contact-less way and accelerate the technological development of efficient infrared detectors based on topological semimetals.
description: Accepted in npj Quantum Materials; Abstract updated
AGRONOMIC EVALUATION OF TROPICAL FORAGE LEGUMES IN DIFFERENT AGROECOSYSTEMS IN PUERTO RICO
EVALUATION AGRONOMIQUE DE LEGUMINEUSES FOURRAGERES TROPICALES DANS DIFFERENTS AGROECOSYSTEMES A PORTO-RICO
Creators: name: Tergas, Luis E.
name: Santana, Rafael Ramos
name: Martinez, Milton
name: Pedraza, Alvaro Arias
name: Sotomayor Rios, Antonio
name: Tergas, Luis E.
name: Santana, Rafael Ramos
name: Martinez, Milton
name: Pedraza, Alvaro Arias
name: Sotomayor Rios, Antonio
Publisher: name: Unknown
Year: 1989
Subjects: Crop Production/Industries
Livestock Production/Industries
Research and Development/Tech Change/Emerging Technologies

description: In Puerto Rico there are approximately 342,000 ha of pastures and rangelands. Fouragroecosystems have been identified based on topography, rainfall distribution and soil types. Forages legumes production and pasture management are vital for milk and beef production to reduce importation of concentrated feed. Stylosanthes guianensis and Centrosema spp. have produced over 13.0 and 5.7 t/ha of dry matter, respectively, during establishment in the humid mountain region. Dry matter yields of Leucaena have been over 15 t/ha/yr during the second year of evaluation and Neonotonia wihgtiihave produced over 2.0 t/ha during establishment in the semiarid southern coast. These forage legumes are recommended for evaluation of persitence under grazing and for animal production in the appropiate agroecosystems. Other tropical forage legumes adapted to the Caribbean Basin should be evaluated in the different agroecosystems in Puerto-Rico. ----- Les prairies et pâturage de Porto-Rico couvrent environ 342,000 ha. La topographie, la distribution des pluies et les types de sols permettent de distinguer quatre agroécosystèmes. La production des légumineuses fourragères et l'exploitation des prairies sont essentielles pour les productions de Ιε;* et de viande bovine, car elles permettent de réduire l'importation d'aliments concentrés. Dans la région montagneuse humide, les productions de matière sèche de Stylosanthesguianensisetde Centrosema spp. ont été respectivement de 13 et de 5,7 t/ha, durant la phase d'implantation. Sur la côte Sud semi-aride, les rendements en matière sèche de Leucaena on:: été supérieurs à 15 t/ha/an pour la seconde année d'évaluation, et Neonotonia wightii a produit plus de 2 t/ha durant sa phase d'établissement. Ces légumineuses fourragères sont recommandées pourévaluer leur persistance sous pâturage et pour l'alimentation animale dans les agroécosystèmes correspondants. D'autres espèces de légumineuses fourragères, adaptées aux conditions du Bassin Caraïbe, devraient être testées dans les différents agroécosystèmes de Porto-Rico.
EFFECT OF BLACK PLASTIC MULCH ON CUCUMBER YIELDS, WATER USE AND ECONOMIC RETURNS
INCIDENCE D'UN PAILLAGE PLASTIQUE NOIR SUR LA PRODUCTION D'UNE CULTURE DE CONCOMBRE, SUR LES BESOINS EN EAU ET LE BILAN ECONOMIQUE
Creators: name: Collingwood, C.
name: Crossman, S.
name: Navarro, A.A.
name: Collingwood, C.
name: Crossman, S.
name: Navarro, A.A.
Publisher: name: Unknown
Year: 1989
Subjects: Crop Production/Industries
Research and Development/Tech Change/Emerging Technologies

description: The effects of black plastic mulch on the cucumber (cv. Victory) yield, water use and economic returns were evaluated in a field experiment with three replications. Mulched plots produced higher marketable yields (34.1 tons/ha vs. 27.8 tons/ha), and used less water (674 m3/ha vs. 894 m3/ha) than plots without mulch. An economic analysis indicated that the cost of mulching was more than compensated for by increased yields and reduced costs for weed control and water use. The economic analysis also revealed that net returns of approximately $20,020 and $13,110 per hectare can be obtained from mulched and unmulched plots, respectively. ----- A partir d'un essai au champ conduit sur trois répétitions, l'impact sur la production du concombre (cv. Victory) d'un paillage plastique noir est étudié à la fois du point de vue des besoins en eau mais aussi des retombées économiques. La production commercialisable des parcelles paillées est plus élevée (34,1 T/Ha contre 27,8 T/Ha) avec une consommation d'eau moindre (674 m3/Ha contre 894 m3/Ha). L'étude économique montre que le coût du paillage est compensé largement par l'augmentation de production, et la réduction des frais pour le désherbage et la consommation en eau. L'étude économique a montré également que le revenu net obtenu était d'environ 20 020 $ et 13110 $ par hectare respectivement pour les parcelles avec paillage et sans paillage.
Strange-Quark Vector Current Pseudoscalar-Meson Transition Form Factors
Creators: name: Dubnickova, A. -Z.
name: Dubnicka, S.
name: Pancheri, G.
name: Pekarik, R.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Similarly to the electromagnetic pseudoscalar-meson transition form factors one can define also strange-quark vector current pseudoscalar-meson transition form factors, contributing only to a behaviour of the isoscalar parts of the previous ones. Their explicit form is found by constructing unitary and analytic models of the strange pseudoscalar-meson transition form factors dependent only on $ω$ and $ϕ$ coupling constant ratios as a free parameters. Numerical values of these ratios are then determined from the corresponding pseudoscalar-meson transition form factors by employing the $ω$-$ϕ$ mixing and a special assumption on the coupling of the quark components of vector-meson wave functions to flavour component of currents under consideration.
description: 6 eps figures, Contribution presented at NAPP'03, May 26-31, 2003, Dubrovnik, Croatia
YIELD OF BUFFELGRASS (Cenchrus ciliaris) CULTIVARS AT THREE CUTTING FREQUENCIES IN THE VIRGIN ISLANDS
RENDEMENT DE CULTIVARS D'HERBE AU BUFFLE (Cenchrus ciliaris) A TROIS FREQUENCES DE COUPE AUX ILES VIERGES
Creators: name: Wildeus, Cyndi L.
name: Michaud, M.W.
name: Wildeus, S.
name: Wildeus, Cyndi L.
name: Michaud, M.W.
name: Wildeus, S.
Publisher: name: Unknown
Year: 1989
Subjects: Crop Production/Industries
Livestock Production/Industries
Research and Development/Tech Change/Emerging Technologies

description: The performance of six buffelgrass (Cenchrus ciliaris) cultivars and one buffelgrass χ birdwood grass (C. setigerus) hybrid was evaluated under Virgin Islands conditions. The accumulative dry matter yield at three cutting frequencies (4,8 and 12 weeks) was determined over 10 months. Seeds were germinated in flats and transferred to styrofoam cups until a mature root system developed. Initially plots were irrigated and hand weeded to ensure establishment. Plot harvestwas initiated 7 months aftertransplanting. Cultivars differed (P
Representations of p-brane topological charge algebras
Creators: name: Reimers, D. T.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The known extended algebras associated with p-branes are shown to be generated as topological charge algebras of the standard p-brane actions. A representation of the charges in terms of superspace forms is constructed. The charges are shown to be the same in standard/extended superspace formulations of the action.
description: 22 pages. Typos fixed, refs added. Minor additions to comments section
Generalised hydrodynamics with dephasing noise
Creators: name: Bastianello, Alvise
name: De Nardis, Jacopo
name: De Luca, Andrea
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We consider the out-of-equilibrium dynamics of an interacting integrable system in the presence of an external dephasing noise. In the limit of large spatial correlation of the noise, we develop an exact description of the dynamics of the system based on a hydrodynamic formulation. This results in an additional term to the standard generalized hydrodynamics theory describing diffusive dynamics in the momentum space of the quasiparticles of the system, with a time- and momentum-dependent diffusion constant. Our analytical predictions are then benchmarked in the classical limit by comparison with a microscopic simulation of the non-linear Schrodinger equation, showing perfect agreement. In the quantum case, our predictions agree with state-of-the-art numerical simulations of the anisotropic Heisenberg spin in the accessible regime of times and with bosonization predictions in the limit of small dephasing times and temperatures.
description: 7+7 pages, 2 figures
SENSIBILITE DE CULTIVARS DE Dioscorea alata, D. cayenensis ET D. trîfida AUX NEMATODES Meloidogyne incognita, Pratylenchus coffeae ET Scutellomena bradys
EVALUATION OF SUSCEPTIBILITES OF YAM CULTIVARS (D. alata, D. cayenensis, D. trîfida) TO SOIL NEMATODES : Meloidogyne incognita, Pratylenchus coffeae AND Scutellonema bradys
Creators: name: Kermarrec, A.
name: Anais, A.
name: Arnolin, R.
name: Gamiette, F.
name: Degranges, M.H.
name: Dos Santos, F.
name: Kermarrec, A.
name: Anais, A.
name: Arnolin, R.
name: Gamiette, F.
name: Degranges, M.H.
name: Dos Santos, F.
Publisher: name: Unknown
Year: 1989
Subjects: Crop Production/Industries
Research and Development/Tech Change/Emerging Technologies

description: Un test précoce de sensibilité aux nématodes est proposé sur jeunes plantules issues de graines, de boutures de tiges et de vitro-plants. Une image globale des sensibilités de trois espèces d'ignames (Dioscorea alata, D. cayenensis, D. trîfida ) au parasitisme contrôlé de trois nématodes (Meloidogyneincognita, Pratylenchus coffeae, Scutellonema bradys) a été obtenue à partir de vitro-plants de diverses variétés. La variété «Plimbite» (D. alata) parait nettement intéressante et quelques plants de D. cayenensis issus de graines du Nigéria semblent résistants àP. coffeae. EVALUATION OF SUSCEPTIBILITES OF YAM CULTIVARS (D. alata, D. cayenensis, D. trîfida) TO SOIL NEMATODES : Meloidogyne incognita, Pratylenchus coffeae AND Scutellonema bradys An early susceptibility test is proposed on young plants obtained from seeds, stem cuttings and vitro-plants. An analysis of the resistance of various yam cultivars to the 3 most important parasitic nematodes (Meloidogyne incognita, Pratylenchus coffeae, Scutellonema bradys) is given through controlled inoculations in greenhouse conditions on vitroplants and seedlings. «Plimbite», a D. alata variety, seems most interesting and some nigérian seedlings of D. cayenensis appear resistant to P. coffeae .
Analytic solution of attractor neural networks on scale-free graphs
Creators: name: Castillo, I. Pérez
name: Wemmenhove, B.
name: Hatchett, J. P. L.
name: Coolen, A. C. C.
name: Skantzos, N. S.
name: Nikoletopoulos, T.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We study the influence of network topology on retrieval properties of recurrent neural networks, using replica techniques for diluted systems. The theory is presented for a network with an arbitrary degree distribution $p(k)$ and applied to power law distributions $p(k) \sim k^{-γ}$, i.e. to neural networks on scale-free graphs. A bifurcation analysis identifies phase boundaries between the paramagnetic phase and either a retrieval phase or a spin glass phase. Using a population dynamics algorithm, the retrieval overlap and spin glass order parameters may be calculated throughout the phase diagram. It is shown that there is an enhancement of the retrieval properties compared with a Poissonian random graph. We compare our findings with simulations.
description: 11 pages, 5 eps figures, LaTeX
On the primordial information available to galaxy redshift surveys
Creators: name: McQuinn, Matthew
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We investigate the amount of primordial information that can be reconstructed from spectroscopic galaxy surveys, as well as what sets the noise in reconstruction at low wavenumbers, by studying a simplified universe in which galaxies are the Zeldovich displaced Lagrangian peaks in the linear density field. For some of this study, we further take an intuitive linearized limit in which reconstruction is a convex problem but where the solution is also a solution to the full nonlinear problem, a limit that bounds the effectiveness of reconstruction. The linearized reconstruction results in similar cross correlation coefficients with the linear input field as our full nonlinear algorithm. The linearized reconstruction also produces similar cross correlation coefficients to those of reconstruction attempts on cosmological N-body simulations, which suggests that existing reconstruction algorithms are extracting most of the accessible information. Our approach helps explain why reconstruction algorithms accurately reproduce the initial conditions up to some characteristic wavenumber, at which point there is a quick transition to almost no correlation. This transition is set by the number of constraints on reconstruction (the number of galaxies in the survey) and not by where shot noise surpasses the clustering signal, as is traditionally thought. We further show that on linear scales a mode can be reconstructed with precision well below the shot noise expectation if the galaxy Lagrangian displacements can be sufficiently constrained. We provide idealized examples of nonlinear reconstruction where shot noise can be outperformed.
description: 31 JCAP pages; typos corrected and changes to S4.2.2; comments welcome
DYNAMIQUE DES POPULATIONS D'U N NEMATODE (Pratylenchus coffeae) DANS LES IGNAMES EN COURS DE CONSERVATION
POPULATION DYNAMICS OF Pratylenchus coffeae IN STORED YAM TUBERS
Creators: name: Kermarrec, A.
name: Anais, A.
name: Gamiette, F.
name: Suard, C.
name: Dos Santos, F.
name: Kermarrec, A.
name: Anais, A.
name: Gamiette, F.
name: Suard, C.
name: Dos Santos, F.
Publisher: name: Unknown
Year: 1989
Subjects: Crop Production/Industries
Research and Development/Tech Change/Emerging Technologies

description: La dynamique des populations de Pratylenchus coffeae dans les tubercules de Dioscorea cayenensis du type «Grosse caille» est décrite en cours de culture, à la récolte et lors de la conservation sur les populations d'endoparasites est analysée. La répartition des nématodes le long du tubercule est suivie dans le temps et les risques de contamination de la culture suivante sont présentés. Une méthode non destructive d'échantillonnage des nématodes, par biopsie du parenchyme cortical des tubercules, est proposée : elle permet une évaluation des niveaux d'infestation des tissus vivants et autorise la plantation des semenceaux sans en altérer la germination. Les méthodes d'extraction des nématodes sont comparées (entonnoir de BAERMANN versus centrifugation) pour un diagnostic rapide. Différentes stratégies de contrôle de Pratylenchus sont proposées. ----- Population dynamics of the root-lesion nematode ( Pratylenchus coffeae) is followed in the tubers of Dioscorea cayenensis from the plantation in the field until the end of the storage. The impact of various conservation conditions is evaluated on the nematode's reproduction. The distribution of parasites inside the tuber is described and the contamination risk for a new production cycle are underlined. A non-destructive sampling method is proposed by biopsy of the tubers : it allows nematological studies and succesfull replantation of the analysed tubers. Nematode extraction methods are compared (BAERMANN funnel versus centrifugation) in a diagnostic purpose. Different control strategies of Pratylenchus are proposed.
EXPERIMENTAL AND NUMERICAL MODELLING OF ENCASED STONE COLUMN.pdf
Creators: name: Ibrahim, Mahmoud
Publisher: name: figshare
Year: 2020
Subjects: subject: 90501 Civil Geotechnical Engineering
subject: FOS: Civil engineering

description: Geosynthetic-Encased sand columns (GECs) provide an effective alternative to
stone columns in very soft soils where stone columns are generally not considered viable.
Coastal and marine zones usually have layers of very soft to soft clays where the use of
GECs can be effective in ground improvement. With increasing depth of very soft to soft
clays (eg. up to 45m in Port Said, Egypt), the use of partially penetrating (i.e. floating)
columns can be cost-effective.
The aim of this study is to investigate the effectiveness of partially penetrating
encased sand columns on the settlement, and bearing capacity. In addition, the
consolidation process, stress transfer mechanism, and developed hoop strains are
investigated through small-scale experimental model tests and numerical modelling.
Very soft clay was brought from the excavation works at the Port Said car tunnel, Port
Said, Egypt. The clay and sand properties were determined through laboratory testing.
The model testing was performed in a 2m long, 1m wide, 1m deep steel tank. The test
bed was prepared by placing the soft clay in layers. In each model test, four 0.05 m
diameter encased sand columns were placed by the displacement method at 0.125 m
spacing. A rigid footing was placed on top of the GECs. Loading was then applied
through a loading frame at constant load increments up to failure. The model tests were
monitored using LVDTs, a load cell, pressure plates, pore pressure transducers, and strain
gauges. The instrumentation was used to measure footing load and settlement, vertical
stresses transferred to the soil and columns, pore pressure generation and dissipation, and
hoop forces developed in the reinforcement. An experimental test for a partially
penetrating GEC was modeled using the 3D finite element program (Plaxis 3D) for
verification purpose. The experimental and numerical models were compared for
settlement, stress concentration, excess pore pressure generation and dissipation, and
hoop strains in the reinforcement.
Using GECs with penetrating length ratios of 1.0, 0.8, and 0.6 resulted in settlement
reductions of 82%, 80%, 68%, respectively, at a vertically applied load of 36 kPa. The
maximum hoop strain was observed at the top of the GECs. It is noticed that hoop strains
along the GEC were similar for the penetration ratios of 0.8 and 1.0, while the hoop
strains increased significantly at a penetration ratio of 0.6. The stress concentration
ratio (ratio of vertical stress on a column to vertical stress on surrounding soil) increases
with the decrease in column-penetrating ratio. Consequently, the developed excess pore
pressures decrease with a reduction in penetration ratio. Good agreement was observed
between the results of the experimental and numerical models.
Computing the eta and eta' Mesons in Lattice QCD
Creators: name: Schilling, K.
name: Neff, H.
name: Lippert, Th.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: It has been known for a long time that the large experimental singlet-octet mass gap in the pseudoscalar meson mass spectrum originates from the anomaly of the axial vector current, i.e. from nonperturbative effects and the nontrivial topological structure of the QCD vacuum. In the N_colour -> infinity limit of the theory, this connection elucidates in the famous Witten-Veneziano relation between the eta'-mass and the topological susceptibility of the quenched QCD vacuum.While lattice QCD has by now produced impressive high precision results on the flavour nonsinglet hadron spectrum, the determination of the pseudoscalar singlet mesons from direct correlator studies is markedly lagging behind, due to the computational complexity in handling observables that include OZI-rule violating diagrams, like the eta' propagator. In this article, we report on some recent progress in dealing with the numerical bottleneck problem.
description: 29 pages, 20 figures, Introductory review based on a talk presented by K. Schilling at the 1st Workshop on Lattice Hadron Physics, Cairns, Australia
Priochirus (Eutriacanthus) Jakobson 1908
Creators: name: Wu, Jie
name: Zhou, Hong-zhang
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Staphylinidae
Priochirus

description: Key to species of subgenus Eutriacanthus from South China
1. Head: median tooth shorter than lateral tooth..................... 2
– Head: median tooth longer than lateral tooth...................... 3
 2. Sides of pronotum convergent anteriorly; mentum with two distinct transverse ridges....... P. (E.) curtcornis, new species
 – Sides of pronotum parallel; mentum with one transverse ridge............................................... P. (E.) unicolor (Laporte)
 3. Lateral line vanishing before reaching protruding part of posterior margin of pronotum; 8th abdominal segment red.................................................. P. (E.) pulchellus, new species
– Lateral line complete, reaching posterior margin of pronotum; 8th abdominal segment black............................................... 4
 4. Pronotum and elytra red; body size larger (13–15 mm)............................................................ P. (E.) bipunctatus (Fauvel)
 – Pronotum and elytra black; body size smaller (9–11 mm)...................................................... P. (E.) tonkinensis Bernhauer
description: Published as part of Wu, Jie & Zhou, Hong-zhang, 2007, Taxonomy Of The Subgenus Eutriacanthus Jakobson, Of The Genus Priochirus Sharp, From Southern China, With The Description Of Two New Species From Guangxi And Yunnan (Coleoptera: Staphylinidae: Osoriinae), pp. 267-276 in Raffles Bulletin of Zoology 55 (2) on page 268, DOI: 10.5281/zenodo.4509026
High $p_T$ correlated tests of lepton universality in lepton(s) + jet(s) processes; an EFT analysis
Creators: name: Afik, Yoav
name: Bar-Shalom, Shaouly
name: Cohen, Jonathan
name: Soni, Amarjit
name: Wudka, Jose
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We suggest a new class of tests for searching for lepton flavor non-universality (LFNU) using ratio observables and based on correlations among the underlying LFNU new physics (NP) effects in several (seemingly independent) di-lepton and single lepton + jet(s) processes. This is demonstrated by studying the effects generated by LFNU 4-Fermi interactions involving 3rd generation quarks. We find that the sensitivity to the scale ($Λ$) of the LFNU 4-Fermi operators significantly improves when the correlations among the various di-lepton +jets and single-lepton + jets processes are used, reaching $Λ\sim {\cal O}(10)$~TeV at the HL-LHC.
description: 9 pages
Nonreciprocal Second-Harmonic Generation in Few-Layer Chromium Triiodide
Creators: name: Song, Wenshen
name: Fei, Ruixiang
name: Yang, Li
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Computational Physics (physics.comp-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: It is of fundamental importance but challenging to simultaneously identify atomic and magnetic configurations of two-dimensional van der Waals materials. In this work, we show that the nonreciprocal second-harmonic generation (SHG) can be a powerful tool to answer this challenge. Despite the preserved lattice inversion symmetry, the interlayer antiferromagnetic order and spin-orbit coupling generate enhanced SHG in PT-symmetric bilayer chromium triiodide (CrI3). Importantly, the in-plane polarization-resolved SHG is sensitive to subtly different interlayer structures that cannot be told by linear optical spectra. Beyond bilayer, we further predict that the intensity and angle-resolved SHG can be employed to identify both interlayer atomic and magnetic configurations of trilayer CrI3. Our first-principles results agree with available measurements and show the potential of SHG as a non-contacting approach to explore correlations between interlayer structures and magnetic orders of emerging ultra-thin magnetic materials.
description: 8 pages and 8 figures
DYNAMIQUE DES POPULATIONS DE DIAPREPES ABBREVIATUS, CHARANCON DES AGRUMES, EN MARTINIQUE ET CONTROLE BIOLOGIQUE EN PEPINIERE PAR DES NEMATODES ENTOMOPARASITE
POPULATION DYNAMICS OF THE CITRUS WEEVIL DIAPREPES ABBREVIATUS L. IN THE FRENCH WEST INDIES AND BIOLOGICAL CONTROL BY ENTOMOPATHOGENOUS NEMATODES IN NURSERY
Creators: name: Mauleon, H.
name: Mademba-Sy, F.
name: Laumond, C.
name: Kermarrec, A.
name: Mauleon, H.
name: Mademba-Sy, F.
name: Laumond, C.
name: Kermarrec, A.
Publisher: name: Unknown
Year: 1989
Subjects: Crop Production/Industries
Research and Development/Tech Change/Emerging Technologies

description: Un important ravageur de Citrus et de Canne à sucre aux Antilles : Diaprepes abbreviates (L.) a récemment été signalé dans 500 hectares de Citrus en Guadeloupe et en Martinique. La dynamique de population de ce ravageur a été suivie de Mai 1986 à Mai 1989. Cette étude montre que Diaprepes abbreviatus est présent tout au long de l'année avec un maximum de pontes de Mars à Juin. La virulence de 2 souches de nématodes entomoparasites (Neoaplectan a et Heterorhabditis) vis à visdes larves de Diaprepes a été comparé en pépinière. La mortalité importante des larves (94,5 %) a été obtenue avec Heterorhabditis . Ce résultat encourageant montre que les nématodes entomoparasites sont des candidats intéressants pour le contrôle biologique de Diaprepes abbreviatus dans les pépinières de Citrus. ----- The so-called surgacane rootstalk borer weevil, Diaprepes abbreviatus(L) an important pest of citrus and sugarcane in the West Indies was recently found infesting 500 hectares of citrus in Guadeloupe and Martinique. Population dynamic of this pest has been followed from May 1988 to May 1989. It shows that Diaprepes abbreviatus is present throughout the year with a maximum of eggs laying from March to June. The pathogenicity of two strains of entornophilic nematodes (Neapiectana and Heterorhabditis) to Diaprepes larvae has been compared in nursery. The highest grub mortality (94,5 %) was obtained with Heterorhabditis. This encouraging result show that entornophilic nematodes are interesting candidates for biological control of Diaprepes abbreviatus in citrus nurseries.
Cosmological constraints from the 100 square degree weak lensing survey
Creators: name: Benjamin, Jonathan Remby Embro
Publisher: name: University of British Columbia
Year: 2011

description: We present a cosmic shear analysis of the LOO square degree weak lensing survey, combining data from the CFHTLS-Wide, RCS, VIRMOS-DESCART and GaBoDS surveys. Spanning ~ 100 square degrees, with an average source redshift z ~ 0.8, this combined survey allows us to place tight joint constraints on the matter density parameter [formula omitted] and the amplitude of the matter power spectrum σ8, finding σ8 (Ωm / 0.24) [superscript omitted] = 0.84 ± 0.07. Tables of the measured shear correlation function and the calculated covariance matrix for each survey are included. The accuracy of our results are a marked improvement on previous work owing to three important differences in our analysis; we correctly account for cosmic variance errors by including a non-Gaussian contribution estimated from numerical simulations; we correct the measured shear for a calibration bias as estimated from simulated data; we model the redshift distribution, n(z), of each survey from the largest photometric redshift catalogue currently available from the CFHTLS-Deep. This catalogue is randomly sampled to reproduce the magnitude distribution of each survey with the resulting survey dependent n(z) parametrised using two different models. While our results are consistent for the n(z) models tested, we find that our cosmological parameter constraints depend weakly (at the 5% level) on the inclusion or exclusion of galaxies with low confidence photometric redshift estimates (z > 1.5). These high redshift galaxies are relatively few in number but contribute a significant weak lensing signal. It will therefore be important for future weak lensing surveys to obtain nearinfra- red data to reliably determine the number of high redshift galaxies in cosmic shear analyses.
Difficulties and Countermeasures of Rural Human Settlement Environment Governance in Tianjin
Creators: name: WANG Di
name: WANG Yongyi
name: LI Chunjie
name: WANG Di
name: WANG Yongyi
name: LI Chunjie
Publisher: name: Unknown
Year: 2021
Subjects: subject: Agribusiness
subject: Rural human settlement environment, Governance dilemma, Capital investment, Tianjin

description: The course of rural human settlement environment governance in Tianjin could be roughly divided into four stages: germination, initiation, promotion and deepening. After the development for nearly 20 years, rural human settlement environment governance of Tianjin is faced with many difficulties, such as imperfect village construction planning, poor use effect of sewage facilities, low participation of farmers, and insufficient financial investment. Therefore, some countermeasures and suggestions are put forward, such as scientific planning and overall consideration, innovating financing mechanism, encouraging diversified investment of funds, and strengthening the publicity of rural human settlement environment governance.
Modeling Of Dynamic Weather Indexes By Coupling Spatial Phenological And Precipitation Data - A Practical Application In The Context Of Weather Index-based Insurances
Creators: name: Doms, Juliane
name: Gerstmann, Henning
name: Möller, Markus
name: Doms, Juliane
name: Gerstmann, Henning
name: Möller, Markus
Publisher: name: Unknown
Year: 2017
Subjects: subject: Agricultural Finance
subject: Risk and Uncertainty
subject: Performance risk
subject: risk management
subject: weather index insurances
subject: spatial basis risk
subject: raster data

description: A key challenge for the design of weather index insurances (WII) is the presence of basis risk, i.e. the actual loss of the insured farm is not fully covered by the insurance payment. Basis risk can occur dependent on the distance between the point of measurement of a specific weather event and the farm’s location (spatial basis risk). The present study aimed to derive spatial data sets and use them for the design of test site- and phenological phasespecific precipitation indexes. We studied for 20 German crop farms the hedging efficiency of WII, i.e. how the variability of farm specific total gross margins would have changed if farmers had purchased the designed WII. The hedging efficiency is different from farm to farm and not always a risk reduction (positive HE) results. Although these might be not the best results, a new methodology to minimize spatial basis risk could be introduced by designing highly dynamic indexes, which are flexible and precise in terms of time and space. The contribution of the present study to the WII research is the analysis of the HE of WII based on these indexes.
Using magnetic resonance imaging and immunohistochemistry to monitor the response of HCT-116 xenograft tumours to tirapazamine
Creators: name: Bains, Lauren Jean
Publisher: name: University of British Columbia
Year: 2011

description: Tirapazamine is a prodrug which is activated under hypoxic conditions and has shown promise in treating hypoxic tumours. Using MRI and histochemistry, the response of HCT116 xenograft tumours to tirapazamine was investigated and quantified. Dynamic contrast-enhanced and diffusion weighted MRI scans were acquired both before and after treatment with tirapazamine in under two hours of imaging time per session. MRI data was used to produce maps of the apparent diffusion coefficient (ADC), area-under-the-curve (IAUC), and pharmacokinetic parameters (Ktrans, ve, vv). Carbocyanine and BrdU/haematoxylin staining were used to produce histological images of perfusion and necrosis. Implanted fiducial markers were used to align MRI data before and after treatment, and to align MRI slices with histological sections. Qualitative and quantitative comparisons between MRI and histological images showed good agreement between the two. Data from both modalities showed that tirapazamine causes significant changes in diffusion and decreases in perfusion within 24 hours after treatment; widespread vascular shutdown and central necrosis were observed in treated tumours. The agreement of dynamic contrast-enhanced MRI and diffusion weighted MRI with accepted immunohistochemical methods suggests that the MRI techniques presented here are effective methods of monitoring the response of hypoxic, heterogeneous tumours to treatment with tirapazamine. This is the first MR investigation to measure the effects of tirapazamine in an in vivo tumour model. The non-invasive imaging protocol developed here has the potential for direct translation to the clinic in a potential trial. Interestingly, the response of tumours to tirapazamine is evidenced by marked vascular shutdown detected using dynamic contrast enhanced MR imaging, supporting the hypothesis that tirapazamine's mechanism of action may include vascular effects.