cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
AGRICULTURAL BIOTECHNOLOGY AND FOOD SECURITY: IMPLICATIONS FOR THE CARIBBEAN
Creators: name: Paul, Compton
name: Paul, Compton
Publisher: name: Unknown
Year: 2001
Subjects: Food Consumption/Nutrition/Food Safety
Food Security and Poverty
Research and Development/Tech Change/Emerging Technologies

description: Potential candidates of biotechnology such as poverty alleviation and enhanced food security and nutrition in developing countries have received little attention. Serageldin (1999) is of the opinion that biotechnology can contribute to future food security if it benefits sustainable small-farm agriculture but important questions relating to ethics, intellectual property rights, and biosafety must be addressed. In the Caribbean where new agricultural land is scarce, farmers must make gains in productivity if they are to compete in the global marketplace. While it is recognised that the region's agriculture must encompass a broader vision that includes effective policies; genetic improvement; sustainable production systems that incorporate integrated pest management and sound natural resource management; synergies among livestock, agroforestry, cropping systems and aquaculture; attention to post harvest technologies and quality assurance systems; and marketing and agribusiness. While current application of modern biotechnology is focused on industrial country agriculture, biotechnology holds great promise as a paradigm shift necessary for solving the problems of food security, poverty alleviation and environmental protection of the region. Collaboration among public and private sectors, NGOs, universities and other institutions, and other R&D stakeholders will be necessary to enable the complexity of issues surrounding biotechnology to be adequately addressed. The Caribbean cannot and must not stand idly by while others make use of the gene revolution and place the region at a disadvantage in its efforts to compete in the global marketplace.
THE EFFICACY OF USING SHEEP REARING AS A MEANS OF MICRO-ENTERPRISE DEVELOPMENT IN A RURAL COMMUNITY
Creators: name: Gibson, Norman R.
name: John, Michelle
name: Gibson, Norman R.
name: John, Michelle
Publisher: name: Unknown
Year: 2001
Subjects: Food Security and Poverty
Livestock Production/Industries

description: The Princes Town Small Ruminant Project was developed primarily to alleviate poverty in a rural community. The poverty rate in the Princes Town area is 49.3%, which places that community among the poorest in Trinidad and Tobago. Sheep production and marketing was used as the vehicle for rural transfonnation through micro-enterprise development. Thirty families from the community were each supplied with an average of four ewes, adequate animal housing, feed, veterinary and other ancillary supplies necessary for the successful rearing of sheep. Participants were trained in basic sheep husbandry, sheep marketing and agribusiness management. The group formed a co-operative that would be responsible for purchasing weaners from members, fattening them in a feedlot and marketing the animals thereafter. After one year, 20 families or 67% of participants remained with the project. A total of 93 animals were distributed and fifty-three lambs were born during the first six months of the project. The frustration level of the remaining participants has however increased in recent times due to internal problems in the NGO, intermittent funding and the slow rate of return on their investment. It is clear that unforeseen problems contributed to some of the frustrations seen, however, given the expectations of the participants, it would appear that sheep production alone may be insufficient to transform the socioeconomic circumstances of the rural poor in a timeframe consistent with their needs. It is therefore recommended that this activity be coupled with the production of cash crops that will provide income in the short term and improve the nutritional status of the family while the sheep production enterprise is maturing.
NFDI4Microbiota - The German National Research Data Infrastructure for the Research of Microbiota
Creators: name: Götz, Barbara
name: Sczyrba, Alexander
name: Bork, Peer
name: Marz, Manja
name: Nunes da Rocha, Ulisses
name: Goesmann, Alexander
name: Overmann, Jörg
name: Clavel, Thomas
name: McHardy, Alice
name: Förstner, Konrad U.
Publisher: name: Zenodo
Year: 2022

description: Poster presented at the BOSC 2022. Microbes have a strong influence on every aspect of human life. Driven by technological advances that allow e.g. high-throughput molecular characterization of microbial species and communities, microbiological research helps to address global health threats such as viral pandemics. These recent advances result in the generation of large data sets, yet the use and re-use of this data so far has failed to exploit its potential. NFDI4Microbiota has started its activity in October 2021 together with several other NFDI (National Research Data Infrastructure) consortia in Germany. It consists of ten well-established partner institutions and is supported by five professional societies and more than 50 participants. It aims to facilitate the digital transformation of the microbiological community and thus the mission of the consortium is to support the microbiology community with access to data, analysis services and (meta)data standards. Besides this, training as well as community engaging activities are offered. Furthermore, a cloud-based system will be created that will make the storage, integration and analysis of microbial data, especially omics data, consistent, reproducible, and accessible. Thereby, NFDI4Microbiota will promote the FAIR (Findable, Accessible, Interoperable and Re-usable) principles and Open Science. Through the dual emphasis on education and services, NFDI4Microbiota will ensure that microbial research in Germany is synergistic and efficient.
Low velocity impact of Kevlar and ultra high molecular weight polyethylene (UHMWPE) reinforced epoxy composites
Creators: name: Oleiwi, Jawad K.
Publisher: name: figshare
Year: 2020
Subjects: subject: 91299 Materials Engineering not elsewhere classified
subject: FOS: Materials engineering

description: Composite laminates are considered one of the most popular damage-resistant materials when exposed to impact force in civil and military applications. In this study, a comparison of composites 12 and 20 layers of fabrics Kevlar and ultrahigh-molecular-weight poly ethylene (UHMWPE)-reinforced epoxy under low-velocity impacts represented by drop-weight impact and Izod pendulum impact has been done. During the Izod test, Kevlar-based composite showed damage at the composite center and fiber breakages. Whereas delamination was observed for UHMWPE reinforced epoxy (PE). The maximum impact strength was for Kevlar-reinforced epoxy (KE) and increases with the number of laminates. Drop-weight impact test showed the highest absorbed energy for (KE) composites. The results revealed that different behavior during the impact test for composites belongs to the impact mechanism in each test.
SELECTION FOR EARLY BEARING PAPAYAS IN THE VIRGIN ISLANDS
Creators: name: Zimmerman, Thomas W.
name: Kowalski, Jacqueline A.
name: Zimmerman, Thomas W.
name: Kowalski, Jacqueline A.
Publisher: name: Unknown
Year: 2001
Subjects: Crop Production/Industries
Demand and Price Analysis

description: Papaya production in the U.S. Virgin Islands is for the domestic market and has been plagued by the Papaya Ringspot Viras (PRSV) and seasonal hurricanes. This has resulted in papayas now being growing as an annual crop. The need exists in the U.S. Virgin Islands for papayas with early production to ensure a marketable crop within 9-10 months. The local demand is for papayas of the 1-1.5 kg size and this is considerably larger than the 0.25-0.5 kg solo varieties developed for export. Breeding and selection has been ongoing for 7 years to develop papayas with tolerance to PRSV and fruit production starting at or less than 1 m from the ground. The height at first fruit set, of papaya cultivars evaluated in the Virgin Islands, ranges from 60 cm to 253 cm. Generally, female plants start setting fruit lower on the stem than hermaphroditic plants. Through breeding and selection, 3 papaya lines have been developed which set fruit between 40 and 60 cm from the ground. These low bearing papaya lines produce fruit that are marketable one month earlier than other cultivars.
Combining Electromagnetic and Gravitational-Wave Constraints on Neutron-Star Masses and Radii
Creators: name: Al-Mamun, Mohammad
name: Steiner, Andrew W.
name: Nättilä, Joonas
name: Lange, Jacob
name: O'Shaughnessy, Richard
name: Tews, Ingo
name: Gandolfi, Stefano
name: Heinke, Craig
name: Han, Sophia
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We perform a joint Bayesian inference of neutron-star mass and radius constraints based on GW170817, observations of quiescent low-mass X-ray binaries (QLMXBs), photospheric radius expansion X-ray bursts (PREs), and X-ray timing observations of J0030+0451. With this data set, the form of the prior distribution still has an impact on the posterior mass-radius (MR) curves and equation of state (EOS), but this impact is smaller than recently obtained when considering QLMXBs alone. We analyze the consistency of the electromagnetic data by including an "intrinsic scattering" contribution to the uncertainties, and find only a slight broadening of the posteriors. This suggests that the gravitational-wave and electromagnetic observations of neutron-star structure are providing a consistent picture of the neutron-star mass-radius curve and the EOS.
description: 6 pages, 4 figures and supplemental material
THREE NEW EXOTIC TROPICAL FRUITS FOR CALCAREOUS SOILS
Creators: name: Ramcharan, C.
name: Bulbulla, A.
name: Ramcharan, C.
name: Bulbulla, A.
Publisher: name: Unknown
Year: 2001
Subjects: Crop Production/Industries
Productivity Analysis

description: Three newly-introduced tropical fruit species have shown excellent potential in a minor fruit field evaluation project conducted on a calcareous soil (pH 8-9) at the University of the Virgin Islands Agricultural Experiment Station. Black Sapote (BS), Diospyros dignya, also called Black Persimmon and Chocolate Pudding Fruit is native to Mexico and represents the only member of the Persimmon family to grow in the tropics. Twenty-year old trees have been fruiting for the last 10 years without pest/disease or nutrient deficiency problems on a calcareous soil. Normally growing to over 30 m tall these trees have been naturally dwarfed by the marl subsoil and yet show no deficiency symptoms. Yields of 100 fruits /tree with an average of 685 g/fruit, 54 % pulp and Brix of 24% have been obtained with each fruit having 2 seeds. Demonstrations at local agricultural fairs and field days have generated great interest in the several ways in which the BS can be utilized. The Egg Fruit (EF), Pouteria campechiana, also from Mexico is known alternatively as Canistel, Yellow Sapote and Penny piece. In its native habitat, the EF can grow well over 15.2 m but on a calcareous soil rarely gets over 3-5 m with some trees bearing in 3 years at 1.5-2.0 m. Yields average 70 fruits/tree with a fruit wt of 630 g, width 10.3 cm, length 10.9 cm, 92 % pulp, and a Brix of 24.6 %. The vigorous, pest- and nutrient deficiencyfree growth of EF coupled with its multitude of food uses has made it quite popular in the VI. Finally, the Wax Jambu (WJ) or Wax Apple, Syzygium samarangense from Malaysia and East Indies has also adapted well with its short compact growth habit, pest- and nutrient deficiency-free nature and yields of 1000 fruits/tree. Fruits of the WJ average 62 g and are 55 cm wide and 52 cm long with almost 100% pulp and 11.9 % Brix. The WJ makes an ideal substitute for its close relative the Malay Apple, which does not tolerate high pH and dry local conditions.
Electronic structure of amorphous germanium disulfide via density functional molecular dynamics simulations
Creators: name: Blaineau, Sebastien
name: Jund, Philippe
Publisher: name: arXiv
Year: 2004
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: Using density functional molecular dynamics simulations we study the electronic properties of glassy g-GeS$_2$. We compute the electronic density of states, which compares very well with XPS measurements, as well as the partial EDOS and the inverse participation ratio. We show the electronic contour plots corresponding to different structural environments, in order to determine the nature of the covalent bonds between the atoms. We finally study the local atomic charges, and analyze the impact of the local environment on the charge transfers between the atoms. The broken chemical order inherent to amorphous systems leads to locally charged zones when integrating the atomic charges up to nearest-neighbor distances.
description: 13 pages, 9 figures; to appear in Phys. Rev. B
Additional file 1 of EuroScore and IL-6 predict the course in ICU after cardiac surgery
Creators: name: Bauer, Andreas
name: Korten, Insa
name: Juchem, Gerd
name: Kiesewetter, Isabel
name: Kilger, Erich
name: Heyn, Jens
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Developmental Biology
subject: Marine Biology

description: Additional file 1: Table S1. Multilevel logistic regression models investigating possible predictors for duration of ventilation after cardiac surgery, including testing for interactions for EuroScore and IL-6 levels.
A three-loop test of the dilatation operator in N=4 SYM
Creators: name: Eden, B.
name: Jarczak, C.
name: Sokatchev, E.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We compute the three-loop anomalous dimension of the BMN operators with charges J=0 (the Konishi multiplet) and J=1 in N=4 super-Yang-Mills theory. We employ a method which effectively reduces the calculation to two loops. Instead of using the superconformal primary states, we consider the ratio of the two-point functions of suitable descendants of the corresponding multiplets. Our results unambiguously select the form of the N=4 SYM dilatation operator which is compatible with BMN scaling. Thus, we provide evidence for BMN scaling at three loops.
description: 38 pages LaTeX, 4 figures, references added
Graphene enhanced linear low-density polyethylene nanocomposites by premixing and melt compounding
Creators: name: Busu, Wan Nazri Wan
Publisher: name: Metallurgy and Materials Science Research Institute Chulalongkorn University
Year: 2021
Subjects: Graphene nanoplatelets
LLDPE
Premix
Masterbatch
Indirect mixing technique

description: Journal of Metals, Materials and Minerals, 31, 1, 11-16
Modelling of Statistical Low-Frequency Noise of Deep-Submicron MOSFETs
Creators: name: Wirth, Gilson I
name: Koh, Jeongwook
name: da Silva, Roberto
name: Thewes, Roland
name: Brederlow, Ralf
Publisher: name: arXiv
Year: 2004
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: The low-frequency noise (LF-noise) of deep submicron MOSFETs is experimentally studied with special emphasis on yield relevant parameter scattering. A novel modeling approach is developed which includes detailed consideration of statistical effects. The model is based on device physics-based parameters which cause statistical fluctuations in LF-noise behavior of individual devices. It can easily be implemented in a compact model for use in circuit simulation tools.
description: 32 pages, 7 figures
Identification of financial factors in economic fluctuations
Creators: name: Furlanetto, Francesco
name: Ravazzolo, Francesco
name: Sarferaz, Samad
Publisher: name: ETH Zurich
Year: 2014
Subjects: ECONOMIC CYCLE + BUSINESS CYCLE FORECASTS + TRADE CYCLE FORECASTS
Housing
NACHFRAGE (WIRTSCHAFTSTHEORIE)
ANGEBOT (WIRTSCHAFTSTHEORIE)
INVESTITIONEN
SUPPLY (ECONOMIC THEORY)
FINANCIAL MARKETS
WIRTSCHAFTLICHE UNSICHERHEIT + WIRTSCHAFTLICHES RISIKO
FINANZMÄRKTE
Uncertainty
External nance premium
VAR
DEMAND (ECONOMIC THEORY)
INVESTMENTS
FINANCIAL CRISIS
ECONOMIC UNCERTAINTY + ECONOMIC RISK
VEREINIGTE STAATEN VON AMERIKA, USA (NORDAMERIKA)
KONJUNKTUR + KONJUNKTURVORHERSAGEN + KONJUNKTURPROGNOSEN
Sign restrictions
Nancial shocks
UNITED STATES OF AMERICA, USA (NORTH AMERICA)
FINANZKRISEN
info:eu-repo/classification/ddc/330
Economics

description: KOF Working Papers, 364
O Consumo de Queijo como Referência para a Análise do Mercado de Qualidade do Produto
Creators: name: Chalita, Marie Anne Najm
name: Chalita, Marie Anne Najm
Publisher: name: Unknown
Year: 2012
Subjects: subject: Agribusiness
subject: Consumption
subject: cheese
subject: quality markets.

description: This paper is placed on the theoretical perspective of Economic Sociology and some contributions of the industrial economy in order to express the importance of consumption in the analysis of quality market of cheese. It intends to reflect the relation between quality and industrial segmentation and niches of consumption strategies through the classification of groups of cheese consumers on established relations between feeding‑food. The investigation was based on applications of closed questionnaire in municipal markets of São Paulo, beyond some undertaken in extended social nets. Upon the data, it was proceeded multivaried analysis considered economic class as dependent variable. Results show a relation with the food quality inverse of social pyramid, mainly B and C Classes. In consequence, it is pointed the lack of formal devices of quality in the dominant structure of cheese market that could express quality notions from consumers. This conclusion points towards the valorization of Brazilian handmade cheeses as a way to reduce the dependence on foreign cheese denominations, to the increase of cheese consumption in general and to the visibility of quality market of the product, both in Brazil and in the international scenario.
It's politics, stupid!: Political constraints determine governments' reactions to the great recession
Creators: name: Gunzinger, Fabian
name: Sturm, Jan-Egbert
Publisher: name: ETH Zurich
Year: 2014
Subjects: GROSS NATIONAL PRODUCT
POLITICAL INFLUENCE (INTERNAL POLITICS)
ECONOMIC CRISES
Great Recession
REZESSION (WIRTSCHAFT, GELD UND WÄHRUNG)
POLITISCHE EINFLUSSNAHME (INNENPOLITIK)
WIRTSCHAFTSKRISEN
Legislative control
GESETZGEBENDE GEWALT + LEGISLATIVE (STAATSRECHT)
LEGISLATIVE POWER OF THE STATE + LEGISLATIVE POWER (PUBLIC LAW)
BRUTTONATIONALEINKOMMEN
RECESSION (ECONOMY, MONEY AND CURRENCY)
KONJUNKTURPOLITIK
Fiscal stimulus
STABILIZATION POLICY
info:eu-repo/classification/ddc/330
Economics

description: KOF Working Papers, 365
Influência das Condições Ambientais e Ação Antrópica Sobre a Eficiência Produtiva Agropecuária em Minas Gerais
Creators: name: Campos, Samuel Alex Coelho
name: Coelho, Alexandre Bragança
name: Gomes, Adriano Provezano
name: Campos, Samuel Alex Coelho
name: Coelho, Alexandre Bragança
name: Gomes, Adriano Provezano
Publisher: name: Unknown
Year: 2012
Subjects: subject: Agribusiness
subject: Environment
subject: efficiency
subject: agricultural production
subject: Data Envelopment Analysis.

description: Agricultural production has major effects on the environment; the environment, in turn, affects farming. Despite the importance of the environment, the form of current production is treated as unsustainable and derogatory. In this sense, we have evaluated the importance of this on agricultural production and human actions to conserve the environment. Data Envelopment Analysis and the quantile regression were used. We have used the 2006 Census of Agriculture as a source of data for the municipalities in Minas Gerais state. Results show the significant importance of human actions to conserve the environment on the agricultural production of municipalities and the variables “Plantio em Nível” (Planting Level) and “Terraços” (Terraces) have a major importance. This result can be attributed to the relief and the concentration of municipalities in regions of rugged terrain.
Employment Effect of Innovation
Creators: name: Kancs, d’Artis
name: Siliverstovs, Boriss
Publisher: name: ETH Zurich
Year: 2017
Subjects: LABOUR MARKET AND EMPLOYMENT
R&D investment
Semi-parametric
FORSCHUNG UND ENTWICKLUNG
ARBEITSMARKT UND BESCHÄFTIGUNG
INNOVATION + MODERNIZATION
Employment
RESEARCH AND DEVELOPMENT
Job creation
INNOVATION + MODERNISIERUNG
Causal inference
ÖKONOMETRIE
Innovation
ECONOMETRICS
GPS
info:eu-repo/classification/ddc/330
Economics

description: KOF Working Papers, 428
Exceptional Point of Degeneracy in Linear-Beam Tubes for High Power Backward-Wave Oscillators
Creators: name: Mealy, Tarek
name: Abdelshafy, Ahmed F.
name: Capolino, Filippo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Abstract An exceptional point of degeneracy (EPD) is induced in a system made of an electron beam interacting with an electromagnetic (EM) guided mode. This enables a degenerate synchronous regime in backward wave oscillators (BWOs) where the electron beams provides distributed gain to the EM mode with distributed power extraction. Current particle-in-cell simulation results demonstrate that BWOs operating at an EPD have a starting-oscillation current that scales quadratically to a non-vanishing value for long interaction lengths and therefore have higher power conversion efficiency at arbitrarily higher level of power generation compared to standard BWOs.
Choques na Taxa de Câmbio Real e o Saldo da Balança Comercial Agropecuária Brasileira: evidências da Curva J entre 1994 e 2007
Creators: name: Scalco, Paulo Roberto
name: Carvalho, Henrique Duarte
name: Campos, Antonio Carvalho
name: Scalco, Paulo Roberto
name: Carvalho, Henrique Duarte
name: Campos, Antonio Carvalho
Publisher: name: Unknown
Year: 2012
Subjects: subject: Agribusiness
subject: Marshall-Lerner condition
subject: J Curve
subject: exchange rate
subject: trade balance
subject: agricultural sector.

description: The aim of this work is to analyze the effect of shocks in the real exchange rate in long and short-run on the Brazilian agricultural trade balance after the deployment of Plano Real. The used methodological framework was an application of Johansen’s (1991) multivariate analysis. Results indicate that two relations of long-run exist between the agricultural trade balance and the domestic income regarding the foreign income and variations in the real exchange rate. It was verified that, in the long-run, an increase of 1% in the exchange rate and in the external income leads respectively to an expansion of 2.04% and 1.95% in the trade balance. Our empirical findings reveal that the Marshall-Lerner condition holds that, in the long-run, the quantum effects must surpass price effects, increasing the trade balance. However, in the short-run, the hypothesis of an existence of the J Curve was rejected.
Enhanced rotational motion of spherical squirmer in polymer solutions
Creators: name: Qi, Kai
name: Westphal, Elmar
name: Gompper, Gerhard
name: Winkler, Roland G.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: The rotational diffusive motion of a self-propelled, attractive spherical colloid immersed in a solution of self-avoiding polymers is studied by mesoscale hydrodynamic simulations. A drastic enhancement of the rotational diffusion by more than an order of magnitude in the presence of activity is obtained. The amplification is a consequence of two effects, a decrease of the amount of adsorbed polymers by active motion and an asymmetric encounter with polymers on the squirmer surface, which yields an additional torque and random noise for the rotational motion. Our simulations suggest a way to control the rotational dynamics of squirmer-type microswimmers by the degree of polymer adsorption and system heterogeneity.
description: 5 figures
Cluster coherent potential approximation for electronic structure of disordered alloys
Creators: name: Laad, M. S.
name: Craco, L.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We extend the single-site coherent potential approximation (CPA) to include the effects of non-local disorder correlations (alloy short-range order) on the electronic structure of random alloy systems. This is achieved by mapping the original Anderson disorder problem to that of a selfconsistently embedded cluster. This cluster problem is then solved using the equations of motion technique. The CPA is recovered for cluster size $N_{c}=1$, and the disorder averaged density-of-states (DOS) is always positive definite. Various new features, compared to those observed in CPA, and related to repeated scattering on pairs of sites, reflecting the effect of SRO are clearly visible in the DOS. It is explicitly shown that the cluster-CPA method always yields positive-definite DOS. Anderson localization effects have been investigated within this approach. In general, we find that Anderson localization sets in before band splitting occurs, and that increasing partial order drives a continuous transition from an Anderson insulator to an incoherent metal.
description: 7 pages, 6 figures. submitted to PRB
Time Cycle Oscillators
Creators: name: Sherbini, Akram El
Publisher: name: figshare
Year: 2020
Subjects: subject: 10205 Financial Mathematics
subject: FOS: Mathematics
subject: 150201 Finance
subject: FOS: Economics and business

description: In the field of technical analysis, time cycles are used to identify price turning points. The lows are normally used to define the cycle periods—which are uniform—to anticipate the lows for future time intervals. Therefore, some discrepancies such as inversions and phase shift occur due to the non-uniform price movement. In this article, new time cycle oscillators are introduced to technical analysis. The role of the oscillators is to measure the irregular cycle periods. Besides, mathematical steps are taken to prove that cycle periods precede volumes. Several systems in nature exhibit periodic motion with different types of oscillations. In this article, a scientific approach is introduced to measure the periods of cycles. Time cycle oscillators pave the way to analyze the market weaknesses and strengths from a time perspective.
Wear behavior of Aluminium 6061 alloy reinforced with coated/uncoated multiwalled carbon nanotube and graphene
Creators: name: Vijee Kumar
Publisher: name: Metallurgy and Materials Science Research Institute Chulalongkorn University
Year: 2021
Subjects: Aluminium 6061
Powder metallurgy
MWCNTs
Graphene
Wear

description: Journal of Metals, Materials and Minerals, 31, 1, 17-24
Wavelet regularization of Euclidean QED
Creators: name: Altaisky, Mikhail
name: Raj, Robin
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The regularization of quantum electrodynamics in the space of functions $ψ_a(x)$, which depend on both the position $x$ and the scale $a$, is presented. The scale-dependent functions are defined in terms of the continuous wavelet transform in $\mathbb{R}^4$ Euclidean space, with the derivatives of Gaussian served as basic wavelets. The vacuum polarization and the dependence of the effective coupling constant on the scale parameters are calculated in one-loop approximation in the limit $p^2 \gg 4m^2$.
description: 19 LaTeX pages, 6 eps figures; to appear in Phys. Rev. D
Frustrated Magnetism in Triangular Lattice TlYbS$_2$ Crystals Grown via Molten Flux
Creators: name: Ferreira, Timothy
name: Xing, Jie
name: Sanjeewa, Liurukara D.
name: Sefat, Athena S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The triangular lattice compound TlYbS$_2$ was prepared as large single crystals via a molten flux growth technique using sodium chloride. Anisotropic magnetic susceptibility measurements down to 0.4 K indicate a complete absence of long-range magnetic order. Despite this lack of long-range order, short-range antiferromagnetic interactions are evidenced through broad transitions, suggesting frustrated behavior. Variable magnetic field measurements reveal metamagnetic behavior at temperatures less than 2 K. Complex low temperature field-tunable magnetic behavior, in addition to no observable long-range order down to 0.4 K, suggest that TlYbS$_2$ is a frustrated magnet and a possible quantum spin liquid candidate.
description: 16 pages, 8 figures
Setting norm boundaries : the case of the responsibility to protect
Creators: name: Baker, James S.
Publisher: name: University of British Columbia
Year: 2010

description: Much debate has focused on the issue of so-called unilateral humanitarian intervention - those operations which take place without the authorization of the Security Council. Much less attention, on the other hand, has been paid to the issue of authorized humanitarian interventions, because they are superficially legal. Legality and legitimacy, however, can be separated. That fact, combined with recent developments in the law of humanitarian intervention necessitates a closer examination of Security Council-mandated operations to establish the level and character of the normative consensus underpinning this new Council practice and precisely how bound up it is with other legal and normative standards in international society. In so doing, it is possible to contribute to the debate on unilateral intervention by establishing why it might be that States prefer the international community’s responsibility to protect to be exercised under the auspices of the United Nations and, therefore, whether unilateral intervention will be legitimated in the future. It is also possible to utilize the case of the responsibility to protect to examine how norms interact with other standards of behaviour in a norm complex, itself informed by background understandings of appropriate conduct within an overall normative context. In developing this idea, it is possible to theorise how and why States are able to set norm boundaries and, consequently, the processes that dictate why a new norm takes the shape it does at a given moment.
Coordenação e Coesão em Grupos de Comercialização de Etanol da Região Centro-Sul do Brasil
Creators: name: Marques, Dalton Siqueira Pitta
name: Paulillo, Luiz Fernando De Oriani E
name: Marques, Dalton Siqueira Pitta
name: Paulillo, Luiz Fernando De Oriani E
Publisher: name: Unknown
Year: 2012
Subjects: subject: Agribusiness
subject: Coordination
subject: cohesion
subject: sugar and ethanol industry
subject: trading groups.

description: One of the major consequences of the deregulation period in the sugar and ethanol industry was the creation of ethanol trading groups. Ethanol producers adopted this strategy to defend themselves against the market power of fuel distributors, which, at that time, imposed very unfavorable price conditions to the production segment. However, coordination problems have always been a characteristic of this industry, which raise doubts about the success of the trading groups to coordinate sales and maintain group cohesion. Based on this point, this paper aims to examine the coordination and cohesion of ethanol trading groups. For this purpose, a multiple case study was conducted, with three of the four trading groups operating in the Central-Southern region in Brazil. The conclusion was that although there are coordination problems, groups, each of them with their characteristics, are successful and allow to balance the power game between manufacturers and distributors.
Additional file 2 of EuroScore and IL-6 predict the course in ICU after cardiac surgery
Creators: name: Bauer, Andreas
name: Korten, Insa
name: Juchem, Gerd
name: Kiesewetter, Isabel
name: Kilger, Erich
name: Heyn, Jens
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Developmental Biology
subject: Marine Biology

description: Additional file 2: Table S2. Multilevel logistic regression models investigating possible predictors for duration of stay in ICU after cardiac surgery, including testing for interactions for Euroscore and IL-6 levels. Baseline are patients being dismissed from ICU ≤ 2 days (compared to patients with being hospitalized on ICU > 2 days).
Análise do Impacto Econômico do Crédito Rural na Microrregião de Pirapora
Creators: name: Capobiango, Ronan Pereira
name: Braga, Marcelo Jose
name: Silveira, Suely De Fátima Ramos
name: Costa, Caio César Medeiros
name: Capobiango, Ronan Pereira
name: Braga, Marcelo Jose
name: Silveira, Suely De Fátima Ramos
name: Costa, Caio César Medeiros
Publisher: name: Unknown
Year: 2012
Subjects: subject: Agribusiness
subject: Rural credit
subject: economic development
subject: panel data.

description: Credit is an instrument that supplies the entrepreneurs ways to play an active role in the economy. The objective of this paper is to analyze the economic impacts of the rural credit in the microregion of Pirapora, one of the seven microregions in the north of Minas Gerais State, Brazil. The impacts of rural credit regarding the total and by sector GDP per capita are measured and analyzed. In addition, the possible effects of rural credit on the Índice Mineiro de Responsabilidade Social (IMRS – Minas Gerais State Social Responsibility Index) are identified. The panel data model is used, considering the period from 2000 to 2004. Results indicate that the agricultural sector is the main beneficiary of rural credit. Since the rural credit provides liquidity in the local economy, the effects of rural credit on other sectors are observed. A possible restriction on credit access is observed, when the direct effects of rural credit on the IMRS are measured.
Gamma rays precursors and afterglows surrounding UHECR events: Z-burst model is still alive
Creators: name: Fargion, D.
name: Colaiuda, A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The Z-burst model and the direct propagation of UHE proton in negligible extragalactic magnetic fields produce gamma-rays afterglows and precursors halos, respectively at GeVs and TeV energy band a few degree around the UHECR arrival direction. The possible correlation of UHECR clusters (doublet, triplet) with nearby BL Lac sources at E_p = 4*10^19 eV offer a test for this necessary Gamma-UHECR trace. We estimate the secondary gamma energy and spectra and we suggest how to disentangle between the different scenarios. We show why Z-Burst model is still the most realistic model to explain UHECR behaviour and their correlation to known BL Lac sources.
description: 8 pages, 1 Figure, Cris Conference 2004 (submitted to Nuclear Phys B)
Um Estudo Sobre o Financiamento da Política de Desenvolvimento Territorial no Meio Rural Brasileiro
Creators: name: Leite, Sergio Pereira
name: Wesz Júnior, Aldemar João
name: Leite, Sergio Pereira
name: Wesz Júnior, Aldemar João
Publisher: name: Unknown
Year: 2012
Subjects: subject: Agribusiness
subject: Public policies
subject: territorial development
subject: rural territories.

description: The aim of this paper is to present the budget execution performance of the financing of territorial policy referring to the Sustainable Development Program of Rural Areas (Pronat) and Territories of Citizenship Program (PTC). To perform this study actors’ strategic programs were interviewed and data on the performance of politics until 2009 were systematized. We analyzed the composition of resources that allow it, as well as issues that will enable or hinder the flow of resources required to finance operating expenses and investment in different subfunctions that compose programs. Results of this study show the complexity and, at the same time, innovations that institutional policies at territorial level budget brings to the scene, whether regarding lifting and ballasting sources of allocated resources, whether regarding the form of application of these resources according to geographical areas and lines of programmatic action.
title: Cumulant expansion approach to nonlinear dynamics of inhomogeneous ensembles in cavity QED
Creators: name: Zens, Matthias
Publisher: name: TU Wien
Year: 2016
Subjects: subject: Quantenoptik
subject: Hybride Quantensysteme
subject: Quantum optics
subject: Hybrid quantum systems

description: In the last couple of years much effort has been dedicated to the development and the investigation of hybrid quantum devices, which combine the advantages of very dissimilar quantum systems for the realization of efficient quantum computation and communication technologies. Particularly interesting in this regard are solid-state quantum memories based on ensembles of spins (e.g. nitrogen vacancy defects in diamond or rare-earth doped crystals) coupled to superconducting microwave cavities. Here the spin-ensemble acts as a robust memory where the collective coupling to the cavity mode allows for the coherent transfer of quantum information. The major downside of ensembles inside solid-state systems is their natural tendency to exhibit inhomogeneous broadening of the transition frequencies, which makes experiments as well as their theoretical description very challenging. On the theoretical side it is primarily the computational complexity due to the exponential growth of the associated Hilbert space with the system size that inevitably calls for approximation schemes. To date, the theoretical description of large spin-cavity systems is mainly limited to weak driving fields, where the number of spin-excitations in the ensemble is negligible, corresponding to a Holstein-Primakoff approximation, or to mean-field approaches, where correlations within the system are neglected. In this thesis we aim to develop a model that accurately accounts for the dynamics of large inhomogeneously broadened spin ensembles, coupled to a single cavity mode, even in the case of strong driving fields. In particular we employ the generalized cumulant expansion method to account for correlations within the system, which allows us to go beyond the Holstein-Primakoff and mean-field approximations. As a first step, we demonstrate the applicability of the cumulant expansion technique to the well-studied Jaynes-Cummings model and investigate its main limitations. We then move on to the Tavis-Cummings model with multiple spins inside the cavity and generalize our approach to ensembles containing a very large number of spins (ca. 10 12). Our model aims not only to provide a proper description of ensemble-based quantum memories, but also to serve as a novel tool for the investigation of interesting new physics arising from cooperative effects in inhomogeneous ensembles.
Herramientas GIS como apoyo a la prospección ambiental. Aplicación a un caso de estudio en el noroeste de España.
Creators: name: Sierra, Antonio Luis Marques
name: Garcia, Efren
name: Cienfuegos, Pablo
name: Loredo, Jorge
Publisher: name: figshare
Year: 2020
Subjects: subject: 50206 Environmental Monitoring
subject: FOS: Earth and related environmental sciences
subject: 40201 Exploration Geochemistry

description: Environmental exploration studies requires working with many geochemical variables; these geostatistical variables require treatment prior to their representation and subsequent analysis . Until recently, geostatistical treatment and representation programs did not permit the realization of anállisis and consultations or there was a complex process. A GIS tool currently has a friendly interface and is very comfortable working with them. In this case studydifferent geochemical data types (water, soil, air) and coverages (geology, land use, soils, topography, etc.) are assembled together. The geochemical indicator was monitored in several springs, and the aquifer’s hydrodynamic behavior was performed using mathematical and simulation models.
String-Inspired Running Vacuum, the "Vacuumon", and the Swampland Criteria
Creators: name: Mavromatos, Nick E.
name: Solà, Joan
name: Basilakos, Spyros
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We elaborate further on the compatibility of the "vacuumon potential" that characterises the inflationary phase of the Running Vacuum Model (RVM) with the Swampland criteria. The work is motivated by the fact that, as demonstrated recently by the authors [1-3], the RVM framework can be derived as an effective gravitational field theory stemming from underlying microscopic (critical) string theory models with gravitational anomalies, involving condensation of primordial gravitational waves. Although believed to be a classical scalar field description, not representing a fully fledged quantum field, nonetheless we show here that the vacuumon potential satisfies certain Swampland criteria for the relevant regime of parameters and field range. We link the criteria to the Gibbons-Hawking entropy that has been argued to characterise the RVM during the de Sitter phase. These results imply that the vacuumon may, after all, admit under certain conditions, a rôle as a quantum field during the inflationary (almost de Sitter) phase of the running vacuum. The conventional slow-roll interpretation of this field, however, fails just because it satisfies the Swampland criteria. The RVM effective theory derived from the low-energy effective action of string theory does, however, successfully describe inflation thanks to the $\sim H^4$ terms induced by the gravitational anomalous condensates. In addition, the stringy version of the RVM involves the Kalb-Ramond (KR) axion field, which, in contrast to the vacuumon, does perfectly satisfy the slow-roll condition. We conclude that the vacuumon description is not fully equivalent to the stringy formulation of the RVM.
description: 37 pages revtex, 3 pdf figures incorporated; amended discussion on running-vacuum properties and evolution in sections IVA, IVC; References added. No effects on conclusions; version accepted for publication in Universe
The population synthesis of Wolf-Rayet stars involving binary merger channels
Creators: name: Li, Zhuowen
name: Zhu, Chunhua
name: Lü, Guoliang
name: Li, Lin
name: Liu, Helei
name: Guo, Sufen
name: Yu, Jinlong
name: Lu, Xizhen
Publisher: name: arXiv
Year: 2024
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Wolf-Rayet stars (WRs) are very important massive stars. However, their origin and the observed binary fraction within the entire WR population are still debated. We investigate some possible merger channels for the formation of WRs, including main sequence (MS)/ Hertzsprung Gap (HG) + MS, He + HG/ Giant Branch (GB). We find that many products produced via binary merger can evolve into WRs, the MS/ HG + MS merger channel can explain WRs with luminosities higher than $\sim 10^{5.4}$\,L$_{\odot}$, while the He + HG/ GB merger channel can explain low-luminosity WRs in the range of $10^{4.7}$\,L$_{\odot}$\,$\sim$\,$10^{5.5}$\,L$_{\odot}$. In the population synthesis analysis of WRs, we assume an initial binary fraction ($f_{\rm ini,bin}$) of 50\% and 100\% for massive stars. We also assume that MS/ HG + MS merger products are non-rotating or rapidly rotating ($ω/ω_{\rm crit}=0.8$). In different cases, the calculated single fractions of WRs range from $22.2\%$ to $60.6\%$ in the Milky Way (MW) and from $8.3\%$ to $70.9\%$ in the Large Magellanic Cloud (LMC). The current observations fall within the range of our calculations. When the merger product of MS/HG+MS rotates rapidly, we estimate that there are approximately 1015 to 1396 WRs in the MW and 128 to 204 WRs in the LMC. Our model also roughly reproduces the observed single-peak luminosity distribution of WRs in the MW. However, the weak bimodal luminosity distribution observed in the LMC is not reproduced in our model. We assess that this may be due to the model underestimating the mass-loss rate in the LMC. In conclusion, we consider that the binary merger is significant formation channel for WR formation, and can explain the observed high fraction of the single WRs in the total population.
description: 14 pages, 8 figures , Accepted to APJ
Semiclassical Quantum Gravity: Statistics of Combinatorial Riemannian Geometries
Creators: name: Bombelli, Luca
name: Corichi, Alejandro
name: Winkler, Oliver
Publisher: name: arXiv
Year: 2004
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: This paper is a contribution to the development of a framework, to be used in the context of semiclassical canonical quantum gravity, in which to frame questions about the correspondence between discrete spacetime structures at "quantum scales" and continuum, classical geometries at large scales. Such a correspondence can be meaningfully established when one has a "semiclassical" state in the underlying quantum gravity theory, and the uncertainties in the correspondence arise both from quantum fluctuations in this state and from the kinematical procedure of matching a smooth geometry to a discrete one. We focus on the latter type of uncertainty, and suggest the use of statistical geometry as a way to quantify it. With a cell complex as an example of discrete structure, we discuss how to construct quantities that define a smooth geometry, and how to estimate the associated uncertainties. We also comment briefly on how to combine our results with uncertainties in the underlying quantum state, and on their use when considering phenomenological aspects of quantum gravity.
description: 26 pages, 2 figures
Studying Intermediate pT Hadron Production with Fluctuations
Creators: name: Peitzmann, Thomas
Publisher: name: arXiv
Year: 2004
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Mechanisms for particle production at intermediate pT in nuclear collisions at RHIC are discussed, emphasizing the differences in associated jet-like correlations between color-neutral and colored production. An alternative production mechanism involving both recombination and fragmentation is suggested, which might simultaneously lead to an enhancement of baryons and to jet-like correlations. To gain more insight into the relative importance of different mechanisms a study of constrained distributions of associated multiplicity is proposed. In a simple model it is shown that these multiplicity distributions may change significantly, if the nature of the production mechanism fluctuates from event to event.
description: 7 pages, 4 figures, talk at Hot Quarks 2004 conference