cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Comparative assessment of heavy metal contamination of abandoned and active dumpsite of Osun waste management, Ejigbo Road, Osogbo, Osun State, Nigeria
Creators: name: Afolabi, Fatai
name: Adeyinka, Gbadebo Clement
name: Ajibola, Olaide Olawunmi
name: Bakare, Babatunde Femi
Publisher: name: Mangosuthu University of Technology (MUT)
Year: 2022
Subjects: subject: 90403 Chemical Engineering Design
subject: FOS: Chemical engineering

description: This study conducts a comparative assessment of two dumpsites (abandoned and active dumpsite) around Osogbo metropolis Osun State Nigeria. Ten selected heavy metals (HMs) such as arsenic, copper, cobalt, cadmium, chromium, iron, nickel, manganese, lead and zinc were determined. The soil samples were collected, at strategic points to revealed variation in samples. The concentrations of HMs were quantitatively determined using atomic absorption spectroscopy. The results indicated that all the HMs determined were found between below detection limit (bdl) to 0.611 mg/kg and bdl –0.880 mg/kg for abandoned and active dumpsites, respectively. The concentration factor and geo-accumulation intensity revealed no contamination to strong contamination and from uncontaminated to strong contamina?tion intensity, respectively. The concentrations for some of the HMs were below the tolerable recommendation level by National Environmental Standards and Regulation Enforcement Agency and Food and Agriculture Organization/World Health Organization in soil samples. This study recommends periodic monitoring and that possi?ble decontamination of the dumpsite are crucial because these dump?sites were currently in use for crops cultivation such as maize, vegetable bananas, and some other arable plants. Also, HM concentra?tions in crops should be investigated and monitored at these dump?sites regularly in order to avert detrimental effects of HM pollution, which could manifest many years after exposure, as they are recalci?trant in the environment.
Constraints on the new particle in $Σ^+\to pμ^+μ^-$
Creators: name: Geng, C. Q.
name: Hsiao, Y. K.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The HyperCP collaboration has presented the branching ratio of $Σ^+\to pμ^+μ^-$ to be $(8.6^{+6.6}_{-5.4}\pm 5.5)\times 10^{-8}$ and suggested a new boson $P^0$ with a mass of $214.3\pm 0.5$ MeV to induce the flavor changing transition of $s\to dμ^+μ^-$. We demonstrate that to explain the data, the new particle cannot be a scalar but pseudoscalar based on the direct constraints from $K^+\toπ^+μ^+μ^-$ and $K_L\toμ^+μ^-$, respectively. Moreover, we determine that the decay width of the pseudoscalar should be in the range of $10^{-7}$ MeV with the lifetime of $10^{-14}$ sec.
description: 8 pages, 3 figures, 1 table, revised version to appear in Phys. Lett. B
Localization of Methyl-Coenzyme M reductase as metabolic marker for diverse methanogenic Archaea.
Creators: name: Wrede, Christoph
name: Walbaum, Ulrike
name: Ducki, Andrea
name: Heieren, Iris
name: Hoppert, Michael
Publisher: name: FID GEO
Year: 2013

description: Methyl-Coenzyme M reductase (MCR) as key enzyme for methanogenesis as well as for anaerobic oxidation of methane represents an important metabolic marker for both processes in microbial biofilms. Here, the potential of MCR-specific polyclonal antibodies as metabolic marker in various methanogenic Archaea is shown. For standard growth conditions in laboratory culture, the cytoplasmic localization of the enzyme in Methanothermobacter marburgensis, Methanothermobacter wolfei, Methanococcus maripaludis, Methanosarcina mazei, and in anaerobically methane-oxidizing biofilms is demonstrated. Under growth limiting conditions on nickel-depleted media, at low linear growth of cultures, a fraction of 50-70% of the enzyme was localized close to the cytoplasmic membrane, which implies "facultative" membrane association of the enzyme. This feature may be also useful for assessment of growth-limiting conditions in microbial biofilms.
description: Open-Access-Publikationsfonds 2013
MICRONUTRIENT POLICY PROCESS IN MALAWI
Creators: name: Babu, Suresh
name: Haggblade, Steven
name: Mkandawire, Elizabeth
name: Nankhuni, Flora
name: Hendriks, Sheryl L.
name: Babu, Suresh
name: Haggblade, Steven
name: Mkandawire, Elizabeth
name: Nankhuni, Flora
name: Hendriks, Sheryl L.
Publisher: name: Unknown
Year: 2016
Subjects: subject: Agricultural and Food Policy
subject: Food Security and Poverty
subject: International Development
subject: Malawi
subject: micronutrient
subject: policy

description: Micronutrient deficiencies are common across the developing world and have major effects on the health outcomes of its population. Although this is well understood, many countries find it difficult to bring about policy change in this regard. This paper uses micronutrient policies designed and implemented in Malawi as a case study to shed light on the barriers and gaps faced by developing countries for similar programs and policies. To understand the drivers of policy change, this paper uses the kaleidoscope model to trace the policy processes of three major micronutrients—iodine, vitamin A, and iron. Using a select set of policy process tools, as well as field interviews with key informants who were part of Malawi’s micronutrient policy process, the authors test a set of hypotheses on 16 variables that drive policy change in the micronutrient policy sphere.
Additional file 2 of Increasing access to CBT for psychosis patients: a feasibility, randomised controlled trial evaluating brief, targeted CBT for distressing voices delivered by assistant psychologists (GiVE2)
Creators: name: Hayward, Mark
name: Berry, Clio
name: Cameron, Ben
name: Arnold, Kate
name: Berry, Katherine
name: Bremner, Stephen
name: Cavanagh, Kate
name: Fowler, David
name: Gage, Heather
name: Greenwood, Kathryn
name: Hazell, Cassie
name: Anna-Marie Jones
name: Robertson, Sam
name: Strauss, Clara
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Developmental Biology
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 2: Consent Form (Patient participants).
Additional file 2 of Effectiveness and cost-effectiveness of telehealth in rural and remote emergency departments: a systematic review protocol
Creators: name: Tsou, Christina
name: Robinson, Suzanne
name: Boyd, James
name: Jamieson, Andrew
name: Blakeman, Robert
name: Bosich, Kylie
name: Yeung, Justin
name: Waters, Stephanie
name: Hendrie, Delia
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Science Policy

description: Additional file 2. Search Strategy/Search Concept Grid.
Connectivity Properties of McKay Quivers
Creators: name: Browne, Hazel
Publisher: name: arXiv
Year: 2020
Subjects: subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 05C25

description: We present several results regarding the connectivity of McKay quivers of finite-dimensional complex representations of finite groups, with no restriction on the faithfulness or self-duality of the representations. We give examples of McKay quivers, as well as quivers that cannot arise as McKay quivers, and discuss a necessary and sufficient condition for two finite groups to share a connected McKay quiver.
description: 14 pages
Cichlidogyrus Paperna 1960
Creators: name: Mendoza-Garfias, Berenit
name: García-Prieto, Luis
name: León, Gerardo Pérez-Ponce De
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Platyhelminthes
Monogenea
Dactylogyridea
Ancyrocephalidae
Cichlidogyrus

description: Cichlidogyrus sp.*
HOSTS. — Actinopterygii (gills).
 GEOGRAPHIC DISTRIBUTION. — Yucatán. Four fish farms along Yucatán state: Oreochromis niloticus (Paredes-Trujillo et al. 2016).
SPECIMENS IN COLLECTIONS. — None.
description: Published as part of Mendoza-Garfias, Berenit, García-Prieto, Luis & León, Gerardo Pérez-Ponce De, 2017, Checklist of the Monogenea (Platyhelminthes) parasitic in Mexican aquatic vertebrates, pp. 501-598 in Zoosystema 39 (4) on page 514, DOI: 10.5252/z2017n4a5, http://zenodo.org/record/4578694
An Integrable Version of Burgers Equation in "Magnetohydrodynamics"
Creators: name: Olesen, P.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: It is pointed out that for the case of (compressible) magnetohydrodynamics (MHD) with the fields $v_y(y,t)$ and $B_x(y,t)$ one can have equations of the Burgers type which are integrable. We discuss the solutions. It turns out that the propagation of the non-linear effects is governed by the initial velocity (as in Burgers case) as well as by the initial Alfvén velocity. Many results previously obtained for the Burgers equation can be transferred to the MHD case. We also discuss equipartition $v_y=\pm B_x$. It is shown that an initial localized small scale magnetic field will end up in fields moving to the left and the right, thus transporting energy from smaller to larger distances.
description: 6 pages (RevTeX). Remarks added on transportation of energy from small initial scales to larger distances. To be published in Phys. Rev. E
Additional file 2 of Development and pilot testing of a health education program to improve immigrants’ access to Canadian health services
Creators: name: Ghahari, Setareh
name: Burnett, Shawna
name: Alexander, Libby
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Additional file 2: Figure S1. Weekly Learning. Depicts the pre- and post- weekly session scores on program content that demonstrates learning in individual sessions.
Evolution of Spectral States of Aql X-1 during the 2000 Outburst
Creators: name: Maitra, D.
name: Bailyn, C. D.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the results of detailed analysis of X-ray data in 3-20 keV range from a ~70 day outburst of the neutron star transient Aquila X-1 during September-November 2000. Optical monitoring with the YALO 1m telescope was used to trigger X-ray observations with Rossi X-ray Timing Explorer (RXTE) in order to follow the outburst from a very early stage. In this paper we discuss the correlated evolution in time of features in the spectral and temporal domains, for the entire outburst. The state transition from low/hard state to high/soft state during the rise of the outburst occurs at higher luminosity than the transition back to low/hard state during the decay, as has also been observed in other outbursts. Fourier power spectra at low frequencies show a broken power law continuum during the rising phase, with the break frequency increasing with time. During the decline from maximum the source evolves to a position in the hardness-intensity plane as well as in the color-color diagram which is similar to, but distinct from, the canonical high/soft state. High frequency quasi-periodic oscillations from 636-870 Hz were seen only during this transitional state.
description: 25 pages, 11 figures. Accepted for publication in ApJ
Solar equation - al-Battani by van Dalen (Benno) and Pedersen (Fritz S.) (2008) | Type-B (ID n° 382)
Creators: name: van Dalen (Benno) and Pedersen, Fritz S.
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2022
Subjects: Astronomy
History of astronomy
DISHAS
Astronomical table

description: This is a type B edition: A type-B edition corresponds to a critical edition of several table witnesses:
 it is based on several different editions, themselves based on tables from different primary sources.
 A type-B edition can be based on type-A, type-B or type-C editions.
You can find it on the DISHAS project website from this link: https://dishas.obspm.fr/table-edition/382
van der Waals energy under strong atom-field coupling in doped carbon nanotubes
Creators: name: Bondarev, Igor
name: Lambin, Philippe
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Using a unified macroscopic QED formalism, we derive an integral equation for the van der Waals energy of a two-level atomic system near a carbon nanotube. The equation is valid for both strong and weak atom-vacuum-field coupling. By solving it numerically, we demonstrate the inapplicability of weak-coupling-based van der Waals interaction models in a close vicinity of the nanotube surface.
description: 9 pages, 1 figure
Comparative in vitro study and biomechanical testing of two different magnesium alloys.
Creators: name: Weizbauer, Andreas
name: Modrejewski, Christian
name: Behrens, Sabine
name: Klein, Helmut
name: Helmecke, Patrick
name: Seitz, Jan-Marten
name: Windhagen, Henning
name: Möhwald, Kai
name: Reifenrath, Janin
name: Waizy, Hazibullah
Publisher: name: SAGE Publications
Year: 2014

description: In this in vitro study, magnesium plates of ZEK100 and MgCa0.8 alloy similar to common titanium alloy osteosynthesis plates were investigated as degradable biomedical materials with a focus on primary stability. Immersion tests were performed in Hank's Balanced Salt Solution at 37. The bending strength of the samples was determined using the four-point bending test according to ISO 9585:1990. The initial strength of the noncorroded ZEK100 plate was 11% greater than that of the MgCa0.8 plate; both were approximately 65% weaker than a titanium plate. The bending strength was determined after 48 and 96 h of immersion in Hank's Balanced Salt Solution; both magnesium alloys decreased by approximately 7% after immersion for 96 h. The degradation rate and the Mg(2+) release of ZEK100 were lower than those of MgCa0.8. Strong pitting and filiform corrosion were observed in the MgCa0.8 samples after 96 h of immersion. The surface of the ZEK100 plates exhibited only small areas of filiform corrosion. The results of this in vitro study indicate that the ZEK100 alloy may be more suitable for biomedical applications.
Economics of the football industry: performance (expectations), fan demand, and managerial turnover
Creators: name: Semmelroth, Dirk
Publisher: name: Universität Paderborn
Year: 2021

description: Die vorliegende kumulative Dissertationsarbeit positioniert sich im Forschungsgebiet der Sportökonomik über Fragestellungen im professionellen Fußball. Für die empirischen Analysen werden sowohl Ligen als auch Mannschaften und Trainer als Untersuchungsobjekte herangezogen und hinsichtlich inhaltlich vielfältiger Forschungsaspekte betrachtet. Der Fokus in den meisten Kapiteln der Dissertationsarbeit liegt auf der Major League Soccer (MLS), die sich insbesondere durch ihre Organisationsstruktur erheblich von den europäischen Spitzenligen abgrenzt. Die Beantwortung der Fragestellungen der Arbeit ist nicht nur aus sportökonomischer, sondern auch aus organisations- und personalökonomischer Perspektive von Interesse.
description: The present cumulative dissertation is positioned in the research area of sports economics on issues in professional football. For the empirical analyzes, leagues as well as teams and coaches are used as objects of investigation and examined with regard to diverse research aspects. In most of the chapters of the dissertation, the focus is on Major League Soccer (MLS), which differs considerably from the top European leagues, in particular due to its organizational structure. Answering the questions posed in the thesis is of interest not only from a sports economic perspective, but also from an organizational and personnel-economic perspective.
Event-Based Control for Online Training of Neural Networks
Creators: name: Zhao, Zilong
name: Cerf, Sophie
name: Robu, Bogdan
name: Marchand, Nicolas
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Convolutional Neural Network (CNN) has become the most used method for image classification tasks. During its training the learning rate and the gradient are two key factors to tune for influencing the convergence speed of the model. Usual learning rate strategies are time-based i.e. monotonous decay over time. Recent state-of-the-art techniques focus on adaptive gradient algorithms i.e. Adam and its versions. In this paper we consider an online learning scenario and we propose two Event-Based control loops to adjust the learning rate of a classical algorithm E (Exponential)/PD (Proportional Derivative)-Control. The first Event-Based control loop will be implemented to prevent sudden drop of the learning rate when the model is approaching the optimum. The second Event-Based control loop will decide, based on the learning speed, when to switch to the next data batch. Experimental evaluationis provided using two state-of-the-art machine learning image datasets (CIFAR-10 and CIFAR-100). Results show the Event-Based E/PD is better than the original algorithm (higher final accuracy, lower final loss value), and the Double-Event-BasedE/PD can accelerate the training process, save up to 67% training time compared to state-of-the-art algorithms and even result in better performance.
LEASE AND TRANSFER OF FLUE-CURED TOBACCO MARKETING QUOTA AMONG FARMS For the 1966 and 1967 Crop Year: A Preliminary Report
Creators: name: Hoover, Dale M.
name: Hoover, Dale M.
Publisher: name: Unknown
Year: 1967
Subjects: Agricultural and Food Policy
Crop Production/Industries
Farm Management

description: Estimates of the average rental rate per pound of marketing quota were made by county office managers of the Agricultural Stabilization and Conservation Service in each flue-cured producing county. The average of these estimates was 17.0 cents per pound in 1966 and 15.9 cents in 1967. Average rent varied between belts and between counties within belts. In general the rental rate was higher where tobacco is an important crop and lower in the counties on the fringe of each belt. Rent appears to be related positively t o the price of tobacco and to yield. It appears to be related negatively to wages. There appears to have been no definite trend in rental rates in three North Carolina counties since the program began in 1962. It is possible that some counties have experienced substantial changes but there are no data generally available before 1966. If transfer of quota across county lines becomes possible, substantial changes in rent may be expected to occur. Rental rates will tend to rise in counties losing quota and f all in counties gaining quota. No estimate of the responsiveness of rental rates to changes in quota is available at this time. Transfer has increased very rapidly since it was first allowed in 1962. Slightly ov~r 80,000 acres were transferred from lessor farms in 1966. This is equivalent to 12.4 percent of total allotted acreage. Transfer activity measured as a proportion of total allotment has been greater in areas where tobacco is of less importance. The lowest rates of transfer occurred in North Carolina. The highest rates were in Florida. The geographic distribution of participants is probably strongly related to off-farm job opportunities and average allotment size. More than 24 percent of all allotment holders leased their allotment under transfer program provisions in 1966. A grand total of 47,047 owners transferred acreage in that year. The number of owners transferring allotment has increased on an average of 7,700 each year over the past four years. If transfer restrictions are removed to allow unlimited transfer for farms and for transfer across county lines, the total volume and importance of transfer can be expected to increase substantially.
Solar Crop Dryers for the Caribbean
Creators: name: Sankat, C.K.
name: McGaw, D.R.
name: Headley, O.
name: Sankat, C.K.
name: McGaw, D.R.
name: Headley, O.
Publisher: name: Unknown
Year: 1987
Subjects: subject: Crop Production/Industries
subject: Research and Development/Tech Change/Emerging Technologies
subject: Solar dryers
subject: Tropical crops
subject: Small farmers

description: Crop drying in the Caribbean is carried out mainly by small farmers and estates, the normal technique being by simply spreading the material out in the sun. This method however, suffers from a number of disadvantages which could be alleviated by the use of solar or mechanical dryers. The paper describes an approach which identifies two basic types of simple, natural convection solar dryers well suited for the small farmer situation, where only small quantities would be dried at any time. Experimental results are presented which demonstrate dryer performance for both types. In the case of drying produce from the larger estates where much larger quantities are being harvested, the packed bed dryer is projected. This type of dryer can operate using either solar energy, hydrocarbon fuel or biomass as an energy source or, alternatively, can utilise any convenient combination of these sources. For the drying of timber and forages, greenhouse type solar dryers, working either by natural or forced convection are described.
Diversified rotations in protected vegetable production systems
Creators: name: Lesur-Dumoulin, Claire
name: Sorgato, Ambre
name: Ibgui, Pauline
name: Lefèvre, Amélie
Publisher: name: Zenodo
Year: 2021
Subjects: DiverIMPACTSPA
Rotation
Learning
Cropping system

description: Problem In protected vegetable systems of the Mediterranean area, rotations are based on a limited number of species and botanical families. In the long term, this favours the development of soil pests and diseases. Solution In order to diversify rotations, a workshop brought together DiverIMPACTS case study 25 (CS25) participants including farmers, technicians, marketers and scientists, to highlight the importance of: including summer crops of variable cycle length in order to allow the implementation of soil solarisation (thermal soil disinfection based on solar energy) including green manures at different times of the year choosing species that allow cycle shifts to desynchronize pest cycles but also that take advantage of market opportunities.
Causes and Consequences of Increasing Herbicide Use in Mali
Creators: name: Haggblade, Steven
name: Smale, Melinda
name: Kergna, Alpha
name: Thériault, Veronique
name: Assima, Amidou
name: Haggblade, Steven
name: Smale, Melinda
name: Kergna, Alpha
name: Thériault, Veronique
name: Assima, Amidou
Publisher: name: Unknown
Year: 2016
Subjects: subject: Agricultural and Food Policy
subject: Food Security and Poverty
subject: International Development
subject: Mali
subject: herbicide

description: Herbicide use has grown rapidly in Mali over the past decade and a half. Quantities imported have more than doubled since the year 2000, while unit prices have fallen by 50% in CFAF francs (Table 1). Unlike fertilizer, which receives a 50% government-financed price subsidy, herbicide users pay full commercial price. While large-scale government subsidies have fueled recent increases in fertilizer availability, rapid growth in herbicide use has emerged as a result of purely private sector supply systems meeting growing on-farm demand.
Dynamical Chiral Symmetry Breaking and Superconductivity in the Supersymmetric Nambu$-$Jona-Lasinio Model at finite Temperature and Density
Creators: name: Ohsaku, Tadafumi
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate the dynamical chiral symmetry breaking (DCSB) and superconductivity in a supersymmetric model at finite temperature and density. We employ the ${\cal N}=1$ four-dimensional generalized supersymmetric Nambu$-$Jona-Lasinio model (${\cal N}=1$ generalized ${\rm SNJL}_{4}$) with a chemical potential as the model Lagrangian, and select the gauge freedom as U(1). In order to realize the DCSB and BCS-type superconductivity in this model, we introduce a SUSY soft mass term. Under the finite-temperature Matsubara formalism, the effective potential and the gap equations are derived in the flamework of the large-N expansion. The finite-density effect in the DCSB is shown by the critical coupling. The roles of both the boson and fermion sectors in the superconductivity are examined by the quasiparticle excitation spectra and the gap equations.
description: 10 pages, 5 figures, with erratum. Phys.Lett. B634 (2006) 285-294, erratum accepted for publication in Phys. Lett. B (2008)
The ABRICO controlled solar drying system for Barbados Agricultural Development Corporation
Creators: name: Krenz, F.H.
name: Krenz, F.H.
Publisher: name: Unknown
Year: 1987
Subjects: subject: Crop Production/Industries
subject: Research and Development/Tech Change/Emerging Technologies
subject: Solar drying
subject: vegetable crops

description: A crop-dryer of lO-tonnes (or 10,000 FBM) capacity has been constructed for the Barbados Agricultural Development Corporation at their Spencer's Estate, based on the ABRICO Controlled Solar Drying concept. The project was a joint effort of BADC and the Canadian International Development Agency. The dryer will be used as a deeonstration and production facility by BADC. Crops to be dried include peanuts, onions, cassava and cotton-seed. This paper describes the construction and operation of the dryer and includes a discussion of the economics of drying.
Quality control in cucumber for export
Creators: name: Graham, Richard A.
name: Graham, Richard A.
Publisher: name: Unknown
Year: 1987
Subjects: subject: Crop Production/Industries
subject: Research and Development/Tech Change/Emerging Technologies
subject: Cucumber
subject: Post harvest handling

description: The short shelf life of cucumber (21-24 days) emphasizes the need for proper production, harvest and post-harvest handling procedures. A high quality product is essential to impact upon the export market and to ensure reasonable returns. Some of the problems encountered by CATCO during the 1986 - 1987 season are illustrated, and ways and means of maintaining fruit quality are defined.
Topological strings on noncommutative manifolds
Creators: name: Kapustin, Anton
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Algebraic Geometry (math.AG)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We identify a deformation of the N=2 supersymmetric sigma model on a Calabi-Yau manifold X which has the same effect on B-branes as a noncommutative deformation of X. We show that for hyperkahler X such deformations allow one to interpolate continuously between the A-model and the B-model. For generic values of the noncommutativity and the B-field, properties of the topologically twisted sigma-models can be described in terms of generalized complex structures introduced by N. Hitchin. For example, we show that the path integral for the deformed sigma-model is localized on generalized holomorphic maps, whereas for the A-model and the B-model it is localized on holomorphic and constant maps, respectively. The geometry of topological D-branes is also best described using generalized complex structures. We also derive a constraint on the Chern character of topological D-branes, which includes A-branes and B-branes as special cases.
description: 36 pages, AMS latex. v2: a reference to a related work has been added. v3: An error in the discussion of the Fourier-Mukai transform for twisted coherent sheaves has been fixed, resulting in several changes in Section 2. The rest of the paper is unaffected. v4: an incorrect statement concerning Lie algebroid cohomology has been fixed
Zur Glazialproblematik auf Blatt Freiburg-Süd der Geomorphologischen Karte 1: 100 000 der Bundesrepublik Deutschland (GMK 100, Blatt 2)
Creators: name: Leser, Hartmut
Publisher: name: Geozon Science Media
Year: 1987

description: Der Artikel bezieht sich auf Kartierungen des Blattes Freiburg-Süd der GMK 100, die ihren Ausgang in der Aufnahme des Blattes Wehr der GMK 25 nahm. Große Teile des Blattes Freiburg-Süd gelten nach herrschenden Vorstellungen während der Riß-Kaltzeit als vergletschert. Die Kartierungen, besonders an der Nahtstelle zwischen Alpen- und Schwarzwaldeis (Mündung des Wehratales in den Hochrhein; Hochrheintal), beweisen den Eiskontakt. Das Schwarzwaldeis war jedoch auf das Wehratal beschränkt. Dieser Talgletscher erreichte nicht die Höhen des Dinkelberges. Eine ausgedehnte Eisüberdeckung des Dinkelberges ist nach den bisherigen Befunden wenig wahrscheinlich.
description: research
Ellipsoidal Subspace Support Vector Data Description
Creators: name: Sohrab, Fahad
name: Raitoharju, Jenni
name: Iosifidis, Alexandros
name: Gabbouj, Moncef
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: In this paper, we propose a novel method for transforming data into a low-dimensional space optimized for one-class classification. The proposed method iteratively transforms data into a new subspace optimized for ellipsoidal encapsulation of target class data. We provide both linear and non-linear formulations for the proposed method. The method takes into account the covariance of the data in the subspace; hence, it yields a more generalized solution as compared to Subspace Support Vector Data Description for a hypersphere. We propose different regularization terms expressing the class variance in the projected space. We compare the results with classic and recently proposed one-class classification methods and achieve better results in the majority of cases. The proposed method is also noticed to converge much faster than recently proposed Subspace Support Vector Data Description.
Diversified rotations in protected vegetable production systems including cover crops
Creators: name: Lesur-Dumoulin, Claire
name: Necula, Cristiana
Publisher: name: Zenodo
Year: 2021
Subjects: DiverIMPACTSPA
Rotation
Multiple cropping
Assessment,
Cropping system

description: Problem In protected vegetable systems of the Mediterranean area, cover crops can offer different ecosystem services. However, in practice, their inclusion in rotations is limited because the land use is primarily driven by profitability objectives. Solution Based on the ROTAT+ modelling tool (Dogliotti et al. 2003), several rotations including cover crops were generated and have been subject to a procedure of multi-objectives optimisation and assessment.
Post-Harvest Studies and Quality of Yams - A review
Creators: name: Degras, L.M.
name: Degras, L.M.
Publisher: name: Unknown
Year: 1987
Subjects: subject: Crop Production/Industries
subject: Research and Development/Tech Change/Emerging Technologies
subject: Yams
subject: Dioscorea spp.
subject: Post-harvest
subject: Tuber qua1ity
subject: Storage losses
subject: Processing

description: There have been few studies on factors affecting yam tuber quality. Tuber quality can be approached from several points of view: nutritional value, changes in organoleptic and physico-chemical characteristics during storage and food preparation or the differing responses of the various yam cultivars to these factors. This paper reviews the literature on these aspects of yam quality and reports on work carried out in Guadeloupe to characterize the response of different yam species to storage and cooking. The studies bring out the differing behaviour among and within Dioscorea species and the need to take into account post-harvest behaviour when selecting cultivars for a particular food or processing use.
Clavunculus bifurcatus
Creators: name: Mendoza-Garfias, Berenit
name: García-Prieto, Luis
name: León, Gerardo Pérez-Ponce De
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Platyhelminthes
Monogenea
Dactylogyridea
Ancyrocephalidae
Clavunculus
Clavunculus bifurcatus

description: Clavunculus bifurcatus (Mizelle, 1941) *
 Actinocleidus bifurcatus Mizelle, 1941: 102.
 Clavunculus bifurcatus – Mizelle et al. 1956: 165.
HOSTS. — Actinopterygii (gills).
 GEOGRAPHIC DISTRIBUTION. — Nuevo León. Presa El Cuchillo (Solidaridad): Micropterus salmoides (Galavíz-Silva et al. 2015).
SPECIMENS IN COLLECTIONS. — CNHE (9824).
description: Published as part of Mendoza-Garfias, Berenit, García-Prieto, Luis & León, Gerardo Pérez-Ponce De, 2017, Checklist of the Monogenea (Platyhelminthes) parasitic in Mexican aquatic vertebrates, pp. 501-598 in Zoosystema 39 (4) on page 514, DOI: 10.5252/z2017n4a5, http://zenodo.org/record/4578694
Large-signal model of 2DFETs: compact modeling of terminal charges and intrinsic capacitances
Creators: name: Pasadas, Francisco
name: Marin, Enrique G.
name: Toral-Lopez, Alejandro
name: Ruiz, Francisco G.
name: Godoy, Andrés
name: Park, Saungeun
name: Akinwande, Deji
name: Jiménez, David
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: We present a physics-based circuit-compatible model for double-gated two-dimensional semiconductor based field effect transistors, which provides explicit expressions for the drain current, terminal charges and intrinsic capacitances. The drain current model is based on the drift-diffusion mechanism for the carrier transport and considers Fermi-Dirac statistics coupled with an appropriate field-effect approach. The terminal charge and intrinsic capacitance models are calculated adopting a Ward-Dutton linear charge partition scheme that guarantees charge-conservation. It has been implemented in Verilog-A to make it compatible with standard circuit simulators. In order to benchmark the proposed modeling framework we also present experimental DC and high-frequency measurements of a purposely fabricated monolayer MoS2 FET showing excellent agreement between the model and the experiment and thus demonstrating the capabilities of the combined approach to predict the performance of 2DFETs.
description: 7 pages, 6 figures
Rock fabrics in palaeoweathering profiles below basement-cover interfaces (AMS-study on drill cores from the Caledonian margin, Central Sweden)
Creators: name: Angerer, Thomas
name: Greiling, Reinhard O.
Publisher: name: Universitätsverlag Göttingen
Year: 2006

description: Basement-cover-interfaces are important crustal boundaries. In many cases they act as detachment horizons. Criteria like pre-erosional basement characteristics, intensity of palaeoweathering and post-erosional processes during burial stage lead to a huge variety of observable alteration and fabric features of basement-cover-interfaces, which may influence the shear-strength. Unconformity-parallel planar fabrics in the weathering profile were facilitated by palaeo-alteration and later processes (Angerer 2005 unpubl. data). Such fabrics may be a factor for lowering the shear-strength (e.g. Wintsch et al. 1995). The probably ubiquitous existence of those fabrics at basement-coverinterfaces is investigated in case studies by means of AMS-fabric analysis, which is a sensitive indicator of rock fabric changes. The present case study is based on sections from two drill cores across the erosional unconformity between Fennoscandian Granite (Revsund) and Cambrian Gärdsjön Fm. (Långviken SGU 73007 and Hara 79002) (petrographic descriptions in Gee, 1978 and Gee et al. 1982).
description: conference
Clavunculus bursatus
Creators: name: Mendoza-Garfias, Berenit
name: García-Prieto, Luis
name: León, Gerardo Pérez-Ponce De
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Platyhelminthes
Monogenea
Dactylogyridea
Ancyrocephalidae
Clavunculus
Clavunculus bursatus

description: Clavunculus bursatus (Mueller, 1936) *
 Ancyrocephalus bursatus Mueller, 1936a: 71.
 Actinocleidus bursatus – Mueller 1937: 211.
 Clavunculus ungis Mizelle, Stokely, Jaskoski, Seamster & Monaco, 1956: 151.
 Clavunculus bursatus – Mizelle et al. 1956: 165.
 HOSTS. — Actinopterygii (gills ).
 GEOGRAPHIC DISTRIBUTION. — Nuevo León. Presa Rodrígo Gómez (La Boca), Presa Sombreretillo, Laguna de Salinillas, Presa El Cuchillo (Solidaridad), Presa Cerro Prieto (Linares): Micropterus salmoides (Galavíz-Silva et al. 2015).
SPECIMENS IN COLLECTIONS. — CNHE (9820).
REMARK
 This material was recorded as Clavunculus ungis (Mizelle & Cronin, 1943), but according to Beverley-Burton (1986), this species is synonym of C. bursatus.
description: Published as part of Mendoza-Garfias, Berenit, García-Prieto, Luis & León, Gerardo Pérez-Ponce De, 2017, Checklist of the Monogenea (Platyhelminthes) parasitic in Mexican aquatic vertebrates, pp. 501-598 in Zoosystema 39 (4) on page 514, DOI: 10.5252/z2017n4a5, http://zenodo.org/record/4578694
Intercropping legumes with rapeseed to reduce nitrogen and pesticide use in a 10-year diversified cropping system in Champagne, France
Creators: name: Rochepeau, Pierre
name: Tauvel, Paul
Publisher: name: Zenodo
Year: 2021
Subjects: DiverIMPACTSPA
Intercropping
Ecosystem Services
Assessment
Cropping system

description: Problem In Champagne, cropping systems are dominated by a 4-year rotation including 5 crops (wheat - spring barley - beetroot – rapeseed – wheat). It requires relatively high levels of mineral nitrogen (N) inputs and pesticides to control weeds (knotweed, lamb's quarters, bedstraw and vulpine), some of which are becoming herbicide-resistant. Rapeseed is well-suited to this region due to the mild winter temperatures, but in recent years pests such as flea beetle larvae and terminal bud weevil have become increasingly damaging to this crop. Solution A 10-year diversified cropping system integrating legumes is considered to provide ecosystem services and reduce the use of N inputs and pesticides. In this cropping system, intercropping rapeseed with legumes such as lentils and beans, maintained yields and reduced the use of N inputs and pesticides.
Noncyclic covers of knot complements
Creators: name: Broaddus, Nathan
Publisher: name: arXiv
Year: 2004
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57M25, 57M10

description: Hempel has shown that the fundamental groups of knot complements are residually finite. This implies that every nontrivial knot must have a finite-sheeted, noncyclic cover. We give an explicit bound, $Φ(c)$, such that if $K$ is a nontrivial knot in the three-sphere with a diagram with $c$ crossings and a particularly simple JSJ decomposition then the complement of $K$ has a finite-sheeted, noncyclic cover with at most $Φ(c)$ sheets.
description: 29 pages, 8 figures, from Ph.D. thesis at Columbia University; Acknowledgments added; Content corrected
Utilisation et adoption des semences améliorées et hybrides de sorgho au Mali : Impacts économiques
Use and Adoption of Sorghum Improved Varieties and Hybrids in Mali: Economic Impact
Creators: name: Smale, Melinda
name: Kergna, Alpha
name: Assima, Amidou
name: Keita, Naman
name: Traoré, Abdramane
name: Haggblade, Steve
name: Témé, Bino
name: Smale, Melinda
name: Kergna, Alpha
name: Assima, Amidou
name: Keita, Naman
name: Traoré, Abdramane
name: Haggblade, Steve
name: Témé, Bino
Publisher: name: Unknown
Year: 2016
Subjects: subject: Agricultural and Food Policy
subject: Food Security and Poverty
subject: International Development
subject: Mali
subject: sorghum

description: Adoption rates for improved varieties of sorghum remain low in Mali—ranging from 13 to 33% depending on the estimation method used—despite the central role of this crop and significant long-term investments in its development. Explanations include, but are not limited to: a) the difficulties both plant breeders and farmers confront in attaining sufficiently high yield advantages given Mali’s harsh and heterogeneous growing environment; b) challenges in providing hybrid seeds because of the weak involvement of private suppliers in the supply chain; c) absence of a formal market channel that would be appropriate for improved sorghum seed. Currently, sorghum growers in Mali depend very much on harvests from their one families or fellow farmers to obtain the seed they need for planting.
Cleidodiscus bedardi Mizelle 1936
Creators: name: Mendoza-Garfias, Berenit
name: García-Prieto, Luis
name: León, Gerardo Pérez-Ponce De
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Platyhelminthes
Monogenea
Dactylogyridea
Dactylogyridae
Cleidodiscus
Cleidodiscus bedardi

description: Cleidodiscus bedardi Mizelle, 1936 *
 Cleidodiscus bedardi Mizelle, 1936: 797.
HOSTS. — Actinopterygii (gills).
 GEOGRAPHIC DISTRIBUTION. — Durango. Río Nazas (puente en la carretera Rodeo-Hidalgo de Parral, desviación a Abasolo): Lepomis macrochirus (Pérez-Ponce de León et al. 2010).
SPECIMENS IN COLLECTIONS. — CNHE (6363).
description: Published as part of Mendoza-Garfias, Berenit, García-Prieto, Luis & León, Gerardo Pérez-Ponce De, 2017, Checklist of the Monogenea (Platyhelminthes) parasitic in Mexican aquatic vertebrates, pp. 501-598 in Zoosystema 39 (4) on page 514, DOI: 10.5252/z2017n4a5, http://zenodo.org/record/4578694
Le genre, la génération et l’utilisation d’engrais
Gender, Generation, and Fertilizer Use
Creators: name: Thériault, Véronique
name: Smale, Melinda
name: Kergna, Alpha
name: Haggblade, Steve
name: Témé, Bino
name: Traoré, Abdramane
name: Thériault, Véronique
name: Smale, Melinda
name: Kergna, Alpha
name: Haggblade, Steve
name: Témé, Bino
name: Traoré, Abdramane
Publisher: name: Unknown
Year: 2016
Subjects: subject: Agricultural and Food Policy
subject: Food Security and Poverty
subject: International Development
subject: Mali
subject: gender
subject: fertilizer
subject: generation

description: dans d’autres zones sahéliennes de l’Afrique de l’Ouest, les céréales sont cultivées dans des champs gérés collectivement et individuellement par les membres de l’exploitation agricole familiale (EAF). L’EAF est composée généralement de plusieurs ménages qui sont unis par des liens familiaux s’étendant sur plusieurs générations. C’est au chef d’exploitation (souvent le patriarche) a qui incombe la responsabilité de gérer l’EAF et plus particulièrement, d’allouer les terres et d’organiser la main-d’œuvre afin de satisfaire les besoins en aliments de base pour tous les membres.
Vorwort/Preface Vol.56, No. 1-2
Creators: name: Litt, Thomas
Publisher: name: Geozon Science Media
Year: 2007

description: Die Subkommission Quartär der Deutschen Stratigraphischen Kommission legt mit diesem Band eine Beschreibung der wichtigsten Stratotypen bzw. stratigraphischen Begriffe für das Quartär Deutschlands vor. In dieser Zusammenstellung werden vor allem klimatostratigraphische Begriffe im Sinne von Kalt- und Warmzeiten berücksichtigt, die Eingang in eine regionale Chronostratigraphie gefunden haben.
description: editorial
Simpson's paradox in Covid-19 case fatality rates: a mediation analysis of age-related causal effects
Creators: name: von Kügelgen, Julius
name: Gresele, Luigi
name: Schölkopf, Bernhard
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applications (stat.AP)
subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: We point out an instantiation of Simpson's paradox in Covid-19 case fatality rates (CFRs): comparing a large-scale study from China (17 Feb) with early reports from Italy (9 Mar), we find that CFRs are lower in Italy for every age group, but higher overall. This phenomenon is explained by a stark difference in case demographic between the two countries. Using this as a motivating example, we introduce basic concepts from mediation analysis and show how these can be used to quantify different direct and indirect effects when assuming a coarse-grained causal graph involving country, age, and case fatality. We curate an age-stratified CFR dataset with >750k cases and conduct a case study, investigating total, direct, and indirect (age-mediated) causal effects between different countries and at different points in time. This allows us to separate age-related effects from others unrelated to age and facilitates a more transparent comparison of CFRs across countries at different stages of the Covid-19 pandemic. Using longitudinal data from Italy, we discover a sign reversal of the direct causal effect in mid-March which temporally aligns with the reported collapse of the healthcare system in parts of the country. Moreover, we find that direct and indirect effects across 132 pairs of countries are only weakly correlated, suggesting that a country's policy and case demographic may be largely unrelated. We point out limitations and extensions for future work, and, finally, discuss the role of causal reasoning in the broader context of using AI to combat the Covid-19 pandemic.
description: Journal version with full Appendix. The first two authors contributed equally to this work
title: A Study of the Experience of Listening to Music in World War Two Britain
Creators: name: Edinburgh, Kerri-Anne
Publisher: name: The Open University
Year: 2019

description: This thesis provides new insights into the experience of listening to music during the Second World War in Britain. It explores the different types of listening practised by individuals who encountered a variety of ‘serious’, ‘light’ and ’popular’ music in diverse wartime circumstances, both live and via technological media. The thesis analyses unpublished diaries and letters written during the war, in which listeners reported on and interpreted their listening experiences. It examines letters written to the BBC about broadcast music; the ‘bulletins’ written by Lionel Bradley about classical concerts in London; and diary entries about popular music, dancing and the cinema written by Frank Lewis and several Mass Observation diarists. These analyses are complemented by the examination of professional reviews of popular and classical music published in Melody Maker, The Times, The Listener, The Observer and The Manchester Guardian. Three central questions guide the research: how did people experience listening to music during the Second World War? To what extent were these different listening experiences shaped and influenced by the war? How did the listeners relate to a variety of notions, including musical taste, the judgement of musical value, musical community and identity? This study focuses on a period previously overlooked by histories of listening; and provides a new listener-oriented perspective on musical culture on the Home Front in World War Two Britain. It argues that the war had a considerable material effect on the circumstances of the listeners’ experiences, but that wartime did not necessarily affect their engagement with or response to the music. It therefore provides new insights into historical listening experiences and the musical landscape of the Second World War, while also making a significant contribution to the methodology of historical listening studies.
Additional file 1 of Effectiveness and cost-effectiveness of telehealth in rural and remote emergency departments: a systematic review protocol
Creators: name: Tsou, Christina
name: Robinson, Suzanne
name: Boyd, James
name: Jamieson, Andrew
name: Blakeman, Robert
name: Bosich, Kylie
name: Yeung, Justin
name: Waters, Stephanie
name: Hendrie, Delia
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Science Policy

description: Additional file 1. Quality Assessment Tool PRISMA-P 2015 Checklist.