cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Lepton Flavour Violation from Yukawa Operators, Supergravity and the See-Saw mechanism
Creators: name: King, Steve F.
name: Peddie, Iain N. R.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate the phenomenological impact of different sources of lepton flavour violation arising from realistic models based on supergravity mediated supersymmetry breaking with Yukawa operators. We discuss four distinct sources of lepton flavour violation in such models: minimum flavour violation, arising from neutrino masses and the see-saw mechanism with RG running; supergravity flavour violation due to the non-universal structure of the supergravity model; flavour violation due to Froggatt-Nielsen (FN) fields appearing in Yukawa operators developing supersymmetry breaking F-terms and contributing in a non-universal way to soft trilinear terms; and finally heavy Higgs flavour violation arising from the heavy Higgs fields used to break the unified gauge symmetry which also appear in Yukawa operators and behave analagously to the FN fields. In order to quantify the relative effects, we study a particular type I string inspired model based on a supersymmetric Pati-Salam model arising from intersecting D-branes, supplemented by a U(1) family symmetry
description: 35 pages, 3 figures; Additional references
Untitled Item
Creators: name: Vladmir Silves Ferreira
name: Monteiro, Filipa
name: Fortes, Arlindo Rodrigues
name: Anyse Pereira Essoh
name: Gomes, Isildo
name: Correia, Manuel
name: Romeiras, Maria Manuel
Publisher: name: figshare
Year: 2020
Subjects: subject: 70105 Agricultural Systems Analysis and Modelling
subject: FOS: Other agricultural sciences
subject: 70302 Agronomy
subject: FOS: Agriculture, forestry and fisheries

description: With climate change, drought is expected to increase, and its negative impacts will beparticularly important in developing countries, usually with rainfall-dependent agriculture. The CaboVerde archipelago is characterized by limited resources, remoteness, vulnerability to natural disasters,and a fragile environment. In this study, we provide the first report of the current status and trends ofagriculture in Cabo Verde. We present data on the current performance of agricultural productionareas in these islands and discuss them in terms of their most important natural constraint, water. Also,we assess the impact of institutional strategies on crop production and evaluate recent mechanismsthat have been engaged towards agrarian development in this archipelago. Our results show that,among the ten Cabo Verde Islands, Santiago has the largest area used for agriculture (52.5%), followedby Santo Antão (16%) and Fogo (15.8%), and that rainfed farming dominates in all of them. The staplecrops, such as maize and beans, are produced through rainfed subsistence farming, whereas irrigatedcrops (i.e., sugarcane, tomatoes) are mostly grown for commercial purposes. The prolonged droughtperiods, exposure, erosion and soil degradation, which led to increasing desertification over the lastdecades, have been identified as the main constraints to agrarian development across the ten islandsof the archipelago. The strategies of Cabo Verde government to mitigate water scarcity throughsmall-scale irrigation based mainly on small dams and drip irrigation technology have a markedeffect on agricultural production in the predominantly arid and semi-arid areas of this archipelago
Selective Bond-Breaking in Formic Acid by Dissociative Electron Attachment
Creators: name: Slaughter, D. S.
name: Weber, Th.
name: Belkacem, A.
name: Trevisan, C. S.
name: Lucchese, R. R.
name: McCurdy, C. W.
name: Rescigno, T. N.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We report the results of a joint experimental {and} theoretical study of dissociative electron attachment to formic acid (HCOOH) in the 6-9 eV region, where H$^-$ fragment ions are a dominant product. Breaking of the CH and OH bonds is distinguished experimentally by deuteration of either site. We show that in this region H$^-$ ions can be produced by formation of two {or possibly three} Feshbach resonance (doubly-excited anion) states, one of which leads to either C-H or O-H bond scission, while the other can only produce formyloxyl radicals by O-H bond scission. Comparison of experimental and theoretical angular distributions of the anion fragment allows the elucidation of state specific pathways to dissociation.
description: 11 pages, 13 figures
Adaptation of CIMMYT's High Protein Quality Corn Varieties to Puerto Rico
Creators: name: Cardona, C.
name: Wessel-Beaver, L.
name: Hepperly, P.R.
name: Cardona, C.
name: Wessel-Beaver, L.
name: Hepperly, P.R.
Publisher: name: Unknown
Year: 1984
Subjects: subject: Crop Production/Industries
subject: Research and Development/Tech Change/Emerging Technologies
subject: Zea mays L.
subject: maize
subject: opaque-2
subject: modified opaque-2
subject: Fusarium monoliforme

description: Six modified endosperm opaque-2 corn varieties from CIMMYT were evaluated at Lajas and Isabela, Puerto Rico in 1983. Two Puerto Rican varieites, Mayorbela and Diente de Caballo, were used as checks. Opaque-2 (o2) corn normally has soft endospoerms, while modified varieties approach the appearance of normal corn. The subplors of each variety were a check, benomyl treatment, and Fusarium moniliforme silk inoculation. Traits measured included incidence of seedborne fungi, plant and ear heights, visual ear infection, ear lengths and diameter, yield and 500 kernel weight, and modification. Yields and modification of the CIMMYT varieties were similar to that of the traditional (non o2) varieties. F. moniliforme was found to be the most important seedborne fungus. The inoculation technique was found to increase incidence of F. monoliforme and should be useful for evaluating large numbers of families in a selection program. Improvement of yield and adaptability of CIMMYT's materials is needed for viable commercial production of these varieties. On the basis of this evaluation, S1 recurrent selection has begun in two modified o2 varieties.
Effects of maternal history of depression and early life maltreatment on children's health-related quality of life
Creators: name: Dittrich, Katja
name: Fuchs, Anna
name: Bermpohl, Felix
name: Meyer, Justus
name: Führer, Daniel
name: Reichl, Corinna
name: Reck, Corinna
name: Kluczniok, Dorothea
name: Kaess, Michael
name: Hindi Attar, Catherine
name: Möhler, Eva
name: Bierbaum, Anna-Lena
name: Zietlow, Anna-Lena
name: Jaite, Charlotte
name: Winter, Sibylle Maria
name: Herpertz, Sabine C.
name: Brunner, Romuald
name: Bödeker, Katja
name: Resch, Franz
Publisher: name: Charité - Universitätsmedizin Berlin
Year: 2021
Subjects: subject: Child
subject: Depression
subject: Maltreatment
subject: Quality of life
subject: Sensitivity
subject: Stress
subject: 600 Technik, Medizin, angewandte Wissenschaften::610 Medizin und Gesundheit::610 Medizin und Gesundheit

description: BACKGROUND There is a well-established link between maternal depression and child mental health. Similar effects have been found for maternal history of early life maltreatment (ELM). However, studies investigating the relationship of children's quality of life and maternal depression are scarce and none have been conducted for the association with maternal ELM. The aim of the present study was to investigate the effects of maternal history of ELM and depression on children's health-related quality of life and to identify mediating factors accounting for these effects. METHODS Our study involved 194 mothers with and without history of depression and/or ELM and their children between five and 12 years. Children's health-related quality of life was assessed by maternal proxy- and child self-ratings using the KIDSCREEN. We considered maternal sensitivity and maternal parenting stress as potential mediators. RESULTS We found an effect of maternal history of depression but not of maternal history of ELM on health-related quality of life. Maternal stress and sensitivity mediated the effects of maternal depression on child global health-related quality of life, as well as on the dimensions Autonomy & Parent Relation, School Environment (maternal and child rating), and Physical Wellbeing (child rating). LIMITATION Due to the cross-sectional design of the study, causal interpretations must be made with caution. Some scales yielded low internal consistency. CONCLUSIONS Maternal impairments in areas of parenting which possibly developed during acute depression persist even after remission of acute affective symptoms. Interventions should target parenting stress and sensitivity in parents with prior depression.
title: 01_2340
Creators: name: Wesley Baldwin, John
name: Baldwin, John W.
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2018
Subjects: subject: Laboratoire de Médiévistique Occidentale de Paris
subject: LaMOP

description: L'ensemble de ces notes ont été crée par John Baldwin lors d'une de ses premières périodes de résidence à Paris. Ces documents comprennent tous les magistri qu’il avait pu rencontrer dans ses sources. Aux XIIème et XIIIème siècles, les universités n'existant pas encore, le titre de magister s'il évoque certainement une compétence n'est pas rattaché de façon systématique au passage par les écoles. De surcroît, les magistris sont le plus souvent désignés par leur seul prénom. La lecture de ces données est donc difficile et suppose un long travail pour tenter d'identifier un individu auquel on pourrait rattacher plusieurs mentions. John Baldwin avait donc renoncé à utiliser ces données pour donner un prolongement à sa magnifique étude sur les gradués d'université et leur emploi par les Capétiens et les Plantagenêts. Néanmoins, il a conservé ces données et elles sont potentiellement très utile dans le cadre de Studium, comme le sont toutes les mentions dans les volumes des Fasti Ecclesiae Gallicanae de chanoines portant ce titre de magister sans autres précisions. L'ampleur des dépouillements rend ces données très utiles et nous devons une grande reconnaissance à John Baldwin pour avoir pris la peine de faire photocopier ses fiches et de nous les avoir transmises amicalement.
Les données ainsi que les images des fiches sont accessibles sur le site Internet à l'adresse suivante : http://studium-baldwin.lamop.fr/.
Les transcriptions des fiches ont été effectuées par des étudiants de Paris 1 Panthéon - Sorbonne mais elles n'ont pas été corrigées par la suite.
description: Relation: https://lamop.hypotheses.org/
New perspectives on covariant quantum error correction
Creators: name: Zhou, Sisi
name: Liu, Zi-Wen
name: Jiang, Liang
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Covariant codes are quantum codes such that a symmetry transformation on the logical system could be realized by a symmetry transformation on the physical system, usually with limited capability of performing quantum error correction (an important case being the Eastin--Knill theorem). The need for understanding the limits of covariant quantum error correction arises in various realms of physics including fault-tolerant quantum computation, condensed matter physics and quantum gravity. Here, we explore covariant quantum error correction with respect to continuous symmetries from the perspectives of quantum metrology and quantum resource theory, establishing solid connections between these formerly disparate fields. We prove new and powerful lower bounds on the infidelity of covariant quantum error correction, which not only extend the scope of previous no-go results but also provide a substantial improvement over existing bounds. Explicit lower bounds are derived for both erasure and depolarizing noises. We also present a type of covariant codes which nearly saturates these lower bounds.
description: 25 pages, 2 figures
Some Factors Affecting the Adoption of Hand Tractors by Vegetable Farmers in Trinidad
Creators: name: Clarke, William G.
name: Gomes, P.I.
name: Clarke, William G.
name: Gomes, P.I.
Publisher: name: Unknown
Year: 1984
Subjects: subject: Crop Production/Industries
subject: Farm Management
subject: Research and Development/Tech Change/Emerging Technologies
subject: Adoption
subject: hand tractor
subject: market gardening

description: There is scope for reducing the level of labour required by vegetable farmers by use of small machines. Thirty-five farmers from the main vegetable growing area who purchased hand tractors were interviewed along with 35 farmers who did not purchase and who were matched with the purchasers for location of farm, ethnic background and age. A 34-quescion interview schedule covered farm-related, innovation-related, personal and social variables. Agricultural training, source of information, size of farm, tenure and relative advantage were positively related to adoption of hand tractors. The high cost and scarcity of labour was not a factor affecting adoption behaviour.
Is the Australian wool industry efficient at converting wool into value?
Creators: name: Fleming, Euan
name: Cottle, David
name: Fleming, Euan
name: Cottle, David
Publisher: name: Unknown
Year: 2015
Subjects: subject: Agribusiness
subject: Demand and Price Analysis
subject: Livestock Production/Industries
subject: Marketing
subject: FOS: Economics and business
subject: Productivity Analysis

description: The marketing strategies of agricultural producers have become increasingly focussed on the sale of differentiated products to intermediary buyers rather than the sale of homogeneous commodities directly to retailers. The wool value chain in Australia fits the description of differentiated products being sold by wool producers to agribusiness firms that are intermediaries in the chain. The attributes of wool that are the source of this differentiation are used by firms to add value to their operations, reflected in higher retail prices paid for wool products. We measure the overall efficiency with which wool is converted into value across different processing routes and end products in the Australian wool value chain and decompose it into its technical, scale and mix efficiency components. We find that wool price changes significantly with a change in fibre diameter, staple length and staple strength and employ a flexible functional form to capture the relations between these wool attributes and lot value. Results show that considerable scope exists to increase the value of most sale lots, and indicate that the overall efficiency in extracting value is lower for wool supplied to processes that produce high-value wool garments. We then ascertain that various factors related to wool production and product characteristics significantly influence the level of technical efficiency. The mix of the three key attributes in wool lots was found not to be a major factor influencing overall efficiency whereas scale efficiency scores (which we measure as returns to wool attributes) were clearly much lower than those for technical and mix efficiency scores, a function of strongly increasing returns to wool lots as the levels of attributes increase. We test propositions about the skewness of distributions of efficiency scores in translating wool attributes into value. Most distributions of overall efficiency scores are positively skewed for production processes paying high prices for wool, and differences in overall efficiency were observed across selling centres. Prima facie, the results provide a strong case for wool producers to move to higher value levels of wool attributes by producing finer, stronger and longer wool fibres – especially the former. But such a strategy may not be an optimal one for producers to follow because the investments they make to implement such a strategy may entail high costs and take a long period to fruition that would lead to a heavy discounting of future benefits. A full benefit-cost analysis would be needed of any investments to raise the levels of wool attributes and otherwise improve wool quality at the farm level.
Plantation Forestry and Economic Development in the Tiwi Islands
Creators: name: Hicks, John
name: Samsa, G.P.
name: Malcolm, B.
name: Hicks, John
name: Samsa, G.P.
name: Malcolm, B.
Publisher: name: Unknown
Year: 2015
Subjects: Crop Production/Industries
International Development
Resource /Energy Economics and Policy

description: The maritime borders of Australia include over 8,000 islands. The second largest of these – Melville Island 5,786 km² together with the fourth largest – Bathurst Island 1,693 km² (and a number of tiny outlier islands) comprise the Tiwi Island group within the Northern Territory. Since 1960 seven investment groups have attempted to develop forestry plantations on Melville Island. The Tiwi landowners and the investors have sought sustainable outcomes from plantation forestry. Fifty years experience has provided a range of data and understanding that informs the Tiwi Plantations corporate model developed by landowners. Three substantial independent financial appraisals of the Tiwi islands forestry project have been undertaken by Poyry Forest Industry Pty Ltd in 2010, 2012 and 2014. All analyses were for a single rotation of A. mangium, and they provide useful guidance about the economic merit, from a private investment viewpoint, of establishing, growing and harvesting this species over a series of ten year cycles of forest plantation on Melville Island. In this paper, a social benefit cost framework is used to appraise the potential contribution to Tiwi Islanders of plantation forestry on the Melville Island. Analysis of the priced benefits and costs of investment of a ten year cycle of A.mangium under most likely yields and prices indicates that the investment in Acacia plantation forestry has a 35 per cent probability of earning a 4 per cent p.a. or greater real return on capital. To double the odds to two chances in three of earning the annual required return on capital of 4 per cent real return on capital, an additional $100m of unpriced benefits need to be generated over the forty years life of the plantation rotation. This would require unpriced annual benefits of $5.1m or $2550 per Tiwi Islander. The Tiwi Islanders currently have 30,000 ha of mature Acacia to harvest. They have relatively small landowner debt to service, an established port and confirmed buyers. Re-investment of the cash returns from the current harvest into more plantation forestry to secure future community benefit is not a compelling attraction; re-investing these revenues to grow-out Acacia over further rotations is unlikely to benefit landowners as much as investing the proceeds in a sovereign wealth fund.
Value Chain Investment for Sustainable Rural Development and Poverty Alleviation: A Case Study of the Indonesian Boiled Fish Market
Creators: name: Yasin, Ade Wiguna Nur
name: Griffith, Garry
name: Yasin, Ade Wiguna Nur
name: Griffith, Garry
Publisher: name: Unknown
Year: 2015
Subjects: subject: Food Security and Poverty
subject: Industrial Organization
subject: International Development
subject: Value chain
subject: Poverty reduction
subject: Indonesia
subject: Boiled fish
subject: Horizontal and vertical integration

description: Poverty is serious and widespread in the rural coastal areas of Indonesia. Government data suggests that more than 7.8 million people in more than 10 ,500 villages live below the poverty line. A rapid poverty reduction program has been conducted since 2011 through the provision of infrastructure that supports more productive industries. However, even if the infrastructure is available, can small-scale food producers in coastal areas achieve self-propelled development if they are still poor? The value chain approach to development is suggested as a complement to the existing infrastructure development program by opening up market channels for high value products through vertical linkages. Pindang or boiled fish is used as a case study, since the industry is quite large and it involves many low-income people. Its current value chain is analysed to define the bottlenecks. This leads to a conclusion that to achieve greater economic development, small-scale pindang producers could consider (a) improving their product quality and diversifying their product range, (b) increasing economies of scale by upgrading horizontal linkages, and (c) introducing new leading firms within vertical linkages.
Evaluating the consequences of imports on a local value chain: the case of Danish pig meat exports to the Australian market
Creators: name: Hamann, Karen
name: Griffith, Garry
name: Mounter, Stuart
name: Hamann, Karen
name: Griffith, Garry
name: Mounter, Stuart
Publisher: name: Unknown
Year: 2015
Subjects: International Relations/Trade
Livestock Production/Industries

description: Imports of pig meat into Australia have grown rapidly in recent years and now total around 150 Kt pa (shipped weight). This is well over 300Kt in carcase weight terms, and makes up two - thirds of processed pig meat production and about half of domestic consumption. A recurring question is whether these trends have harmed the domestic pig industry and , if so, to the degree sufficient to warrant safeguard action under WTO regulations. While the Productivity Commission regularly examines the aggregate data to test this hypothesis, in this paper we investigate the value system that coordinates the imports of Danish pig meat into the Australian pig meat market, and we seek to identify which parameters impact this value system. We find that the Danish pig meat industry built its current position in the Australian market (about 40Kt pa, mainly middles for bacon) based on the following determinants of value: economies of scale in production, processing and logistics; uniform quality of the middles; high food-safety and veterinary standards ; the ability to supply a c ustomised product ”made to order”; and a long-term focus on the customer. Other conributing factors include Australians’ strong preference for ham and bacon which means that Danish suppliers can obtain higher prices in Australia for middles than they can elsewhere , and the recent strength of the $AU : the $AU/ Euro rate has fluctuated between 0.64 - 0.86 over recent years. Import prices set domestic prices for manufacturing type pig meat, and imported products are typically cheaper than domestically produced pig meat suitable for manufacturing. Given the latitude allowed by the arguably ineffective country - of - origin labelling laws, cost efficient manufacturers will use imported product. This has resulted in a consi derable degree of industry consolidation as well as a marked decline in the production of pigs more suitable for manufacturing pig meat in Australia. Those producers who are left have moved out of the processed market towards the fresh pork market and , to a lesser extent, towards export markets. We also examine one of the dominant value chains in this system and analyse how it achieved and maintains success.
AACo's Northern Beef Value Chain: Analysis of performance and interventions
Creators: name: Ie, Sebastian
name: Ie, Sebastian
Publisher: name: Unknown
Year: 2016
Subjects: Industrial Organization
Livestock Production/Industries

description: AACo is one of northern Australia’s largest beef producers. The new Livingstone beef processing facility represents the formation of a new value chain component for the company, the success of which could also help facilitate the broader development of an alternative marketing channel for the northern cattle industry. A speculative analysis of the of the AACo northern beef value chain suggests that it may be difficult to achieve sufficient levels of chain surplus despite an existing high level of coordination between stages. The main obstacles to performance indicated include poor quality transport infrastructure, climate variability, the relatively low value of the specific targeted beef market, and the cost of skilled labour in the region. Potential interventions are suggested, but further analysis will be required after all stages of the value chain become fully operational to confirm the findings of this study, and potentially provide greater evidence for effective targeted interventions.
Improving sweetpotato marketing in Papua New Guinea: Results from a value chain analysis
Creators: name: Chang, Hui-Shung (Christie)
name: Spriggs, John
name: Anjen, Jesse
name: Dowa, Eleo
name: Kewa, John
name: Hehona, Donald
name: Chang, Hui-Shung (Christie)
name: Spriggs, John
name: Anjen, Jesse
name: Dowa, Eleo
name: Kewa, John
name: Hehona, Donald
Publisher: name: Unknown
Year: 2016
Subjects: subject: Crop Production/Industries
subject: Industrial Organization
subject: International Development
subject: Marketing
subject: FOS: Economics and business
subject: value chain analysis
subject: sweetpotato
subject: smallholder farmers
subject: Papua New Guinea

description: Sweetpotato is the most important food crop in the Highlands of Papua New Guinea (PNG). In recent years, sweetpotato has become a cash crop for smallholder farmers driven by the need to generate income in a market economy. Marketing opportunities exist for Highland sweetpotato, especially in coastal markets, because of income growth and urbanisation. Despite this , long distance sweetpotato marketing has been problematic. The objective of this research was to identify socio - economic constraints to, and opportunities for, improving the marketing efficiency of the long distance sweetpotato value chain in PNG. The results from the value chain analysis suggested that although there was a demand for high quality Highland sweetpotato in coastal markets, the long distance sweetpotato value chain was underdeveloped . This was due to several constraints : lack of access to sup port services (credit , extension and market information); poor infrastructure (roads and the transport system and storage and market facilities) ; inadequate postharvest management ; lack of business skills , financial literacy and marketing planning ; unclear price signals; lack of trust among chain players , uncoordinated value chain activities; and declining demand. The main conclusion was that to transition from subsistence farming to semi - commercial/commercial farming, s mallholder farmers need to become more market - oriented and better equipped with business skills . Furthermore, they need to be prepared to change their current marketing and postharvest practices in order to supply high quality products to the right markets at competitive prices. Government also has a key role to play in terms of providing an appropriate enabling environment , including a reliable transport system , business development services and a locally appropriate pricing and grading system . This environment is necessary to support the effort of farmers in adopting improved marketing and postharvest practices.
Ein IOT-Projekt: preiswerte Digitalwaage wird zum WiFi-Kraftmesser
Creators: name: Kastl, Robert Otto
name: Dohrmann, René
name: Nordmeier, Volkhard
Publisher: name: Freie Universität Berlin
Year: 2020
Subjects: subject: WiFi-Kraftmesser
subject: IOT-Projekt
subject: Arduino-Boards
subject: 500 Naturwissenschaften und Mathematik::530 Physik::530 Physik

description: Elektronische Waagen, ob Personen-, Koffer- oder Briefwaagen basieren meist auf der Messung der Verformung eines Biegebalkens über aufgeklebte Dehnungsmessstreifen (DMS) [1]. Geschickt verschaltet entsteht aus ihnen eine Wheatstone’sche Messbrücke, an deren Ausgang ein preiswertes Modul zur Digitalisierung und graphischen Aufbereitung durch eines der mittlerweile weit verbreiteten Arduino-Boards angeschlossen werden kann. Die Gesamtkosten für ein derartiges, WLAN-fähiges System betragen etwa 50 €. Angesichts des günstigen Preises und der einfachen Realisierbarkeit kann der Umbau einer elektronischen Waage gut als Projekt realisiert werden.
UNISECO Case study Greece: Collective implementation of alternative plant protection practices in peach trees, Imathia
Creators: name: Smyrniotopoulou, Alexandra
name: Vlahos, George
Publisher: name: Zenodo
Year: 2021
Subjects: UNISECO H2020 project
case study
Greece
fruit orchards
Imathia
competitiveness
water quality
biodiversity
modernisation
advisory
cooperation

description: Presentation at the UNISECO H2020 Final Conference, 18-19 March 2021
 https://uniseco-project.eu/final-conference UNISECO is a European research project aiming to develop innovative approaches to enhance the understanding of socio-economic and policy drivers and barriers for further development and implementation of agro-ecological practices in EU farming systems. Learn more about the project: https://uniseco-project.eu/ This project has received funding from the European Union's H2020 research and innovation programme under grant agreement No 773901.
Factors Affecting Consumers’ Willingness to Pay for Good Quality Sweetpotato in Papua New Guinea
Creators: name: Villano, Renato
name: Chang, Hui-Shung (Christie)
name: Kewa, John
name: Irving, Donald
name: Villano, Renato
name: Chang, Hui-Shung (Christie)
name: Kewa, John
name: Irving, Donald
Publisher: name: Unknown
Year: 2016
Subjects: subject: Crop Production/Industries
subject: Demand and Price Analysis
subject: willingness-to-pay
subject: sweetpotato
subject: smallholder farmers
subject: Papua New Guinea

description: In this paper , the influence of socio - economic and product quality attributes on consumers’ willingness to pay for good quality sweetpotato in Papua New Guinea was examined . The quality of s weetpotato was assessed by consumers based on its physical appearance, taste and maturity. Using a two - step double hurdle model, the determinants of the discrete choice on willingness to pay , and the amount of premiums consumers were willing to pay for better quality sweetpotato, were estimated. Of the 356 respondents surveyed , 88% were found to be willing to pay an average of 2.22 kinas per kg more for better quality sweetpotatoes , with a minimum of 0.96 kinas per kg and a maximum of 3.47 kinas per kg . The premiums that consumers were willing to pay were influenced by socio - economic factors such as education, the place of origin ( Highlands regions), the number of years the household has been living in Port Moresby , as well as product quality attributes such as the physical appearance of the roots (freshness, cleanliness, shape and size), the maturity of the roots, and the sweetness . These results provide useful information on consumer preferences and quality requirements for sweetpotato that will enable farmers and researchers to produce the appropriate qualities that better meet market demand.
Soft-dielectron excess in proton-proton collisions at $\sqrt{s}$ = 13 TeV
Creators: name: ALICE Collaboration
Publisher: name: arXiv
Year: 2020
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: A measurement of dielectron production in proton-proton (pp) collisions at $\sqrt{s} = 13$ TeV, recorded with the ALICE detector at the CERN LHC, is presented in this Letter. The data set was recorded with a reduced magnetic solenoid field. This enables the investigation of a kinematic domain at low dielectron invariant mass $m_{\rm ee}$ and pair transverse momentum $p_{\rm T,ee}$ that was previously inaccessible at the LHC. The cross section for dielectron production is studied as a function of $m_{\rm ee}$, $p_{\rm T,ee}$, and event multiplicity ${\rm d} N_{\rm ch}/{\rm d} η$. The expected dielectron rate from hadron decays, called hadronic cocktail, utilizes a parametrization of the measured $η/π^0$ ratio in pp and proton-nucleus (p-A) collisions, assuming that this ratio shows no strong dependence on collision energy at low transverse momentum. Comparison of the measured dielectron yield to the hadronic cocktail at $0.15
description: 20 pages, 4 captioned figures, authors from page 15, published version, figures at http://alice-publications.web.cern.ch/node/6295
Genomics, International Trade and Food Security
Creators: name: Kerr, William A.
name: Kerr, William A.
Publisher: name: Unknown
Year: 2017
Subjects: subject: Agricultural and Food Policy
subject: Food Security and Poverty
subject: International Relations/Trade
subject: Research and Development/Tech Change/Emerging Technologies
subject: agricultural productivity
subject: food security
subject: genomics
subject: international trade
subject: regulation

description: Genomic information and its associated technologies appear to have the potential to significantly increase agricultural productivity and, hence, contribute to meeting the food security challenges that feeding nine billion people by 2050 presents. The costs of genomic information and the associated implementation technologies continue to fall. Much of the output of genomic - based improvement may not qualify for protection as intellectual property. It also does not suffer from the concerns that have been associated with transgenic technology – GMOs – such as potential risks to human health and the environment, ethical issues and highly concentrated control of the food system. As a result, both the regulatory and trade regimes need not be as rigorous as has been the case for GMOs in some jurisdictions. A regulatory regime that encourages investment in genomics- based agricultural technology and an open trade regime will facilitate the ability of the technology to contribute to global food security.
Preventive Factors to Found Walnut Production Cooperatives in Tuyserkan Township, Iran
Creators: name: Abdolmaleky, Mohammad
name: Abdolmaleky, Mohammad
Publisher: name: Unknown
Year: 2015
Subjects: subject: Agribusiness
subject: Crop Production/Industries
subject: Industrial Organization
subject: Barriers
subject: Walnut Producers
subject: Production Cooperatives
subject: Iran

description: This study was conducted to seek the opinion of walnut producers on barriers affecting the success of producers to found production cooperatives regarding horticultural products in Tuyserkan Township, Iran. A sample of 234 walnut producers were randomly selected through multistage cluster sampling technique. Descriptive-correlation research method was used in this study which has been implemented through the questionnaire. For determining the validity of questionnaire, the face and content validity was used. Reliability for the instrument was estimated at 0.94. According to factor analysis, barriers to found and develop walnut production cooperatives were categorized into seven groups that explained 65.799% of the total variance of the research variables. The results also indicated that lack of cultural infrastructures, inadequate knowledge and incorrect opinions of producers and leaders, inadequate laws and vulnerability and infrastructural barriers had the most effect to found and develop walnut production cooperatives, respectively.
Proofs of Conjectures about singular riemannian foliations
Creators: name: Alexandrino, Marcos M.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Differential Geometry (math.DG)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 53C12, 57R30

description: We prove that if the normal distribution of a singular riemannian foliation is integrable, then each leaf of this normal distribution can be extended to be a complete immersed totally geodesic submanifold (called section) which meets every leaf orthogonally. In addition the set of regular points is open and dense in each section. This result generalizes a result of Boualem and solves a problem inspired by a remark of Palais and Terng and a work of Szenthe about polar actions. We also study the singular holonomy of a singular riemannian foliation with sections (s.r.f.s for short) and in particular the transverse orbit of the closure of each leaf. Furthermore we prove that the closure of the leaves of a s.r.f.s. on M form a partition of M which is a singular riemannian foliation. This result proves partially a conjecture of Molino.
description: Latex2e; The final publication is available at springerlink.com http://www.springerlink.com/content/q48682633730t831/
Untitled Item
Creators: name: Monteiro, Filipa
name: Fortes, Arlindo Rodrigues
name: Vladmir Silves Ferreira
name: Anyse Pereira Essoh
name: Gomes, Isildo
name: Correia, Manuel
name: Romeiras, Maria Manuel
Publisher: name: figshare
Year: 2020
Subjects: subject: 70105 Agricultural Systems Analysis and Modelling
subject: FOS: Other agricultural sciences
subject: 70302 Agronomy
subject: FOS: Agriculture, forestry and fisheries

description: With climate change, drought is expected to increase, and its negative impacts will beparticularly important in developing countries, usually with rainfall-dependent agriculture. The CaboVerde archipelago is characterized by limited resources, remoteness, vulnerability to natural disasters,and a fragile environment. In this study, we provide the first report of the current status and trends ofagriculture in Cabo Verde. We present data on the current performance of agricultural productionareas in these islands and discuss them in terms of their most important natural constraint, water. Also,we assess the impact of institutional strategies on crop production and evaluate recent mechanismsthat have been engaged towards agrarian development in this archipelago. Our results show that,among the ten Cabo Verde Islands, Santiago has the largest area used for agriculture (52.5%), followedby Santo Antão (16%) and Fogo (15.8%), and that rainfed farming dominates in all of them. The staplecrops, such as maize and beans, are produced through rainfed subsistence farming, whereas irrigatedcrops (i.e., sugarcane, tomatoes) are mostly grown for commercial purposes. The prolonged droughtperiods, exposure, erosion and soil degradation, which led to increasing desertification over the lastdecades, have been identified as the main constraints to agrarian development across the ten islandsof the archipelago. The strategies of Cabo Verde government to mitigate water scarcity throughsmall-scale irrigation based mainly on small dams and drip irrigation technology have a markedeffect on agricultural production in the predominantly arid and semi-arid areas of this archipelago
Construction $C^\star$ from Self-Dual Codes
Creators: name: Bollauf, Maiara Francine
name: Costa, Sueli Irene Rodrigues
name: Zamir, Ram
Publisher: name: arXiv
Year: 2020
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: Construction $C^\star$ was recently introduced as a generalization of the multilevel Construction C (or Forney's code-formula), such that the coded levels may be dependent. Both constructions do not produce a lattice in general, hence the central idea of this paper is to present a 3-level lattice Construction $C^\star$ scheme that admits an efficient nearest-neighborhood decoding. In order to achieve this objective, we choose coupled codes for levels 1 and 3, and set the second level code C2 as an independent linear binary self-dual code, which is known to have a rich mathematical structure among families of linear codes. Our main result states a necessary and sufficient condition for this construction to generate a lattice. We then present examples of efficient lattices and also non-lattice constellations with good packing properties.
Pseudomazocraes selene Hargis 1957
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
Mazocraeidea
Chauhaneidae
Pseudomazocraes
Pseudomazocraes selene

description: Pseudomazocraes selene Hargis, 1957
 Pseudomazocraes selene Hargis, 1957: 10.
HOSTS. — Actinopterygii (gills).
 GEOGRAPHIC DISTRIBUTION. — Jalisco. Bahía de Chamela: Caranx caballus, Caranx hippos, Trachinotus rhodopus (Pérez-Ponce de León et al. 1999) **.
 Veracruz. Arrecife El Cabezo: Caranx crysos (Montoya-Mendoza et al. 2008), C. hippos (Montoya-Mendoza 2009); El Saladero, Laguna de Tamiahua: Selene vomer (Porraz-Álvarez 2006); Playa Jicacal: C. crysos, C. hippos, S. vomer (Bravo-Hollis 1989); Playa Las Barrancas (Alvarado): C. crysos, C. hippos, Chloroscombrus chrysurus, Selene setapinnis, Selene spixii, S. vomer (Montoya-Mendoza et al. 2008), Tuxpan: Caranx latus, S. vomer (Caballero & Bravo-Hollis 1965b).
SPECIMENS IN COLLECTIONS. — CHE-UAEH (00038); CNHE (245- 7, 256-7, 3096, 3100, 5886-8, 6191); NHMUK (2007.7.25.24-27); USNM (99968-70).
NOTE
 Kohn et al. (2006) included this species in the family Mazocraeidae.
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 545, DOI: 10.5252/z2017n4a5, http://zenodo.org/record/4578694
Area-scaling of quantum fluctuations
Creators: name: Yarom, A.
name: Brustein, R.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We show that fluctuations of bulk operators that are restricted to some region of space scale as the surface area of the region, independently of its geometry. Specifically, we consider two point functions of operators that are integrals over local operator densities whose two point functions falls off rapidly at large distances, and does not diverge too strongly at short distances. We show that the two point function of such bulk operators is proportional to the area of the common boundary of the two spatial regions. Consequences of this, relevant to the holographic principle and to area-scaling of Unruh radiation are briefly discussed.
description: 20 pages, 5 figures
Assessing the outputs, impact and value of investments in malaria research and development
Creators: name: Mulligan, Jo-Ann Louise
Publisher: name: Imperial College London
Year: 2018

description: Malaria is a major public health challenge, causing disease, disability and death in low and middle income countries. Over 3 billion people, almost half the world’s population, are at risk from the disease and more than 445,000 die each year, mainly in Sub-Saharan Africa, and mainly children. New technologies and innovations such as longer lasting bed nets and new drug therapies are making faster progress possible. Research is a critical component of this process. While there are several methodologies and frameworks to assess research impact, to date there have been no systematic global estimates on the rate of return or ‘payback’ from investment in malaria research. Such estimates could potentially be vital for justifying continuing expenditure on research in the face of increasing competing demands for the use of scarce research resources. The aim of this thesis is to contribute to the international evidence base by exploring methods and frameworks for assessing the impact of health research in the poorest countries, with a particular focus on malaria. This thesis highlights the importance of understanding what works in measuring research impact and a key methodological contribution is to show how various methods and techniques can be applied to the area of antimalarial medicines research. We reflect on the extent to which these novel applications can act as exemplars for further work, which could potentially consider the whole area of malaria research including vaccines and prevention technologies. It is hoped this work will help inform future approaches to monitoring and evaluation of the impact and value of all development interventions and programmes
Multi-frequency Craik-Criminale solutions of the Navier-Stokes equations
Creators: name: Fabijonas, Bruce R.
name: Holm, Darryl D.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: An exact Craik-Criminale (CC) solution to the incompressible Navier-Stokes (NS) equations describes the instability of an elliptical columnar flow interacting with a single Kelvin wave. These CC solutions are extended to allow multi-harmonic Kelvin waves to interact with any exact ``base'' solution of the NS equations. The interaction is evaluated along an arbitrarily chosen flowline of the base solution, so exact nonlinear instability in this context is locally convective, rather than absolute. Furthermore, an iterative method called ``WKB-bootstrapping'' is introduced which successively adds Kelvin waves with incommensurate phases to the extended CC solutions. This is illustrated by constructing an extended CC solution consisting of several Kelvin waves with incommensurate phases interacting with an elliptical columnar flow.
description: 9 pages, 2 figures, submitted to J. Fluid Mech
Hexostoma albsmithi Dollfus 1962
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
Mazocraeidea
Hexostomatidae
Hexostoma
Hexostoma albsmithi

description: Hexostoma albsmithi Dollfus, 1962
 Hexostoma albsmithi Dollfus, 1962: 517.
HOSTS. — Actinopterygii (gills).
 GEOGRAPHIC DISTRIBUTION. — Undetermined. Undetermined: Thunnus orientalis (unpublished record, HWML)**.
 SPECIMENS IN COLLECTIONS. — HWML (31187).
REMARK
This monogenean was identified by Edward D. Wagner; the site of collection for the four specimens deposited in the HWML was recorded as “ Mexico ”.
 Neohexostoma euthynni (Meserve, 1938) (Fig. 4D)
 Hexostoma euthynni Meserve, 1938: 47. — Milleman 1956: 316. — Payne 1991: 98.
 Hexostoma macracanthum Fujii, 1944: 153.
 Neohexostoma euthynni – Price 1961a: 6.
HOSTS. — Actinopterygii (gills).
 GEOGRAPHIC DISTRIBUTION. — Baja California Sur. Isla Espíritu Santo: Euthynnus lineatus (Payne 1991) **; Localidad entre Punta Abreojos y San Juanico: E. lineatus (Milleman 1956).
 Jalisco. Bahía de Chamela: E. lineatus (Castillo-Sánchez et al. 1997; Pérez-Ponce de León et al. 1999).
 SPECIMENS IN COLLECTIONS. — CNHE (1448).
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 551, DOI: 10.5252/z2017n4a5, http://zenodo.org/record/4578694