cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Polar nano-clusters in nominally paraelectric ceramics demonstrating high microwave tunability for wireless communication
Creators: name: Zhang, Hangfeng
name: Giddens, Henry
name: Yue, Yajun
name: Xu, Xinzhao
name: Araullo-Peters, Vicente
name: Koval, Vladimir
name: Palma, Matteo
name: Abrahams, Isaac
name: Yan, Haixue
name: Hao, Yang
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applied Physics (physics.app-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Dielectric materials, with high tunability at microwave frequencies, are key components in the design of microwave communication systems. Dense Ba0.6Sr0.4TiO3 (BST) ceramics, with different grain sizes, were prepared in order to optimise the dielectric tunability via polar nano cluster effects. Dielectric permittivity and loss measurements were carried at both high and low frequencies and were supported by results from X-ray powder diffraction, scanning and transmission electron microscopies, Raman spectroscopy and piezoresponse force microscopy. The concentration of polar nano clusters, whose sizes are found to be in the range 20 to 50 nm, and the dielectric tunability increase with increasing grain size. A novel method for measurement of the microwave tunability in bulk dielectrics is presented. The highest tunability of 32% is achieved in ceramics with an average grain size of 10 um. The tunability of BST ceramics with applied DC field is demonstrated in a prototype small resonant antenna.
description: 25pages, 6 figures
Incorporating Scenic Quality and Cultural Heritage into Farmland Valuation: Results from an Enhanced LESA Model
Creators: name: Mathews, Leah Greden
name: Rex, Art
name: Mathews, Leah Greden
name: Rex, Art
Publisher: name: Unknown
Year: 2010
Subjects: Land Economics/Use

description: Farmland often contributes scenic quality and cultural heritage to a region; however, these factors are challenging to incorporate into standard farmland valuation schemes because of their qualitative nature. This research develops a method for enhancing the Land Evaluation and Site Assessment (LESA) model to incorporate scenic quality and cultural heritage elements into the rating scheme. Data on the scenic quality and cultural heritage values of the community was gathered via a participatory geographic information system (PGIS) exercise and combined with traditional LESA factors to develop a GIS-linked enhanced LESA model. This method provides a holistic valuation of farmland characteristics and directly incorporates community values. When a LESA model is augmented with scenic quality and cultural heritage elements, farmland protection priorities in the study region are impacted.
Non-Rational 2D Quantum Gravity: I. World Sheet CFT
Creators: name: Kostov, I. K.
name: Petkova, V. B.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We address the problem of computing the tachyon correlation functions in Liouville gravity with generic (non-rational) matter central charge c<1. We consider two variants of the theory. The first is the conventional one in which the effective matter interaction is given by the two matter screening charges. In the second variant the interaction is defined by the Liouville dressings of the non-trivial vertex operator of zero dimension. This particular deformation, referred to as "diagonal'', is motivated by the comparison with the discrete approach, which is the subject of a subsequent paper. In both theories we determine the ground ring of ghost zero physical operators by computing its OPE action on the tachyons and derive recurrence relations for the tachyon bulk correlation functions. We find 3- and 4-point solutions to these functional equations for various matter spectra. In particular, we find a closed expression for the 4-point function of order operators in the diagonal theory.
description: TEX-harvmac, revised version to appear in Nuclear Physics B
Additional file 1 of Suppression of Mig-6 overcomes the acquired EGFR-TKI resistance of lung adenocarcinoma
Creators: name: Kang, Da Hyun
name: Jung, Sung Soo
name: Yeo, Min-Kyung
name: Lee, Da Hye
name: Geon Yoo
name: Cho, Sang Yeon
name: Oh, In-Jae
name: Ju-Ock Kim
name: Park, Hee Sun
name: Chung, Chaeuk
name: Lee, Jeong Eun
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: Space Science
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer

description: Additional file 1.
Thomas Richter; Stadt Aschaffenburg (Hrsg.); Christian Schad. Künstler im 20. Jahrhundert Bd. 1: Bausteine zur Biographie. Bd. 2: Bildlegenden und Texte
Creators: name: Rusch, Bernhard
Publisher: name: Journal für Kunstgeschichte
Year: 2024

description: Rezension zu: Thomas Richter; Stadt Aschaffenburg (Hrsg.); Christian Schad. Künstler im 20. Jahrhundert Bd. 1: Bausteine zur Biographie. Bd. 2: Bildlegenden und Texte; Petersberg: Michael Imhof Verlag 2020; 656 S., 501 farb. u. 140 s/w-Abb.; ISBN 978-3-7319-0790-9
description: Journal für Kunstgeschichte, Bd. 24 Nr. 3 (2020): Journal für Kunstgeschichte
Classical Gravitational Self-Energy from Double Copy
Creators: name: Almeida, Gabriel Luz
name: Foffa, Stefano
name: Sturani, Riccardo
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We apply the classical double copy to the calculation of self-energy of composite systems with multipolar coupling to gravitational field, obtaining next-to-leading order results in the gravitational coupling $G_N$ by generalizing color to kinematics replacement rules known in literature. When applied to the multipolar description of the two-body system, the self-energy diagrams studied in this work correspond to tail processes, whose physical interpretation is of radiation being emitted by the non-relativistic source, scattered by the curvature generated by the binary system and then re-absorbed by the same source. These processes contribute to the conservative two-body dynamics and the present work represents a decisive step towards the systematic use of double copy within the multipolar post-Minkowskian expansion.
description: 20 pages, 2 figures
INDICADORES DE AVALIAÇÃO DE DESEMPENHO ECONÔMICO EM COOPERATIVAS AGROPECUÁRIAS: UM ESTUDO EM COOPERATIVAS PAULISTAS
Creators: name: Carvalho, Flavio Leonel De
name: Bialoskorski Neto, Sigismundo
name: Carvalho, Flavio Leonel De
name: Bialoskorski Neto, Sigismundo
Publisher: name: Unknown
Year: 2008
Subjects: subject: Agribusiness
subject: Agricultural Finance
subject: Industrial Organization
subject: economical indicators
subject: factor analysis
subject: performance.

description: The objective of this work was to identify the main economic and financial indicators which should be considered in the evaluation of the performance of agricultural cooperatives. Cooperatives have two dimensions, social and economic, and studies have shown that, in agricultural cooperatives, the social performance is a consequence of the economic performance. Therefore, the performance of these entities was evaluated using economic and financial indicators. Applying the Factor Analysis statistical technique to 150 financial statements of agricultural cooperatives from São Paulo state, from 2001 to 2006, it was possible to find out the level of correlation among several indicators, as well as to group them into factors. Four main factors were found by combining indicators. It can be concluded that the application of factorial analysis made the choice of the key indicators more objective. Grouping these indicators into factors made it possible to analyze simultaneously various indicators and the classification and comparison of the performance of the agricultural cooperatives was more objective.
Note Illustrative della Carta geologica d'Italia alla scala 1:50.000, F. 301 Fabriano
Creators: name: Centamore, E.
name: Chiocchini, M.
name: Chiocchini, U.
name: Dramis, F.
name: Giardini, G.
name: Jacobacci, A.
name: Martelli, G.
name: Micarelli, A.
name: Potetti, M.
Publisher: name: INFN Open Access Repository
Year: 1979

description: Note illustrative redatte per il Foglio geologico n. 301 Fabriano della Carta Geologica d'Italia alla scala 1:50.000. 28 pp.
On the role of filaments in perpendicular heat transport at the Scrape-off Layer
Creators: name: Carralero, D.
name: Artene, S.
name: Bernert, M.
name: Birkenmeier, G.
name: Faitsch, M.
name: Manz, P.
name: deMarne, P.
name: Stroth, U.
name: Wischmeier, M.
name: Wolfrum, E.
name: team, the ASDEX Upgrade
name: Team, the EURO-fusion MST1
Publisher: name: arXiv
Year: 2020
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: In this work we carry out quantitative measurements of particle and heat transport associated to SOL filaments in a tokamak, and relate density shoulder formation to the advection of energy in the far SOL. For the first time, this attempt includes direct measurements of ion and electron temperatures for background and filaments. With this aim, we combine data from a number of equivalent L-mode discharges from the ASDEX Upgrade tokamak in which different probe heads were installed on the midplane manipulator. This approach is validated by a comparison with independent diagnostics. Results indicate an increase of heat transport associated to filaments after the shoulder formation. Several centimeters into the SOL, filaments are still found to carry a substantial fraction (up to one fifth) of the power ejected at the separatrix.
description: Published in Nucler Fusion
The Impact of Alternative Market Orientation Strategies on Firm Performance: Customer versus Competitor Orientation
Creators: name: Micheels, Eric T.
name: Gow, Hamish R.
name: Micheels, Eric T.
name: Gow, Hamish R.
Publisher: name: Unknown
Year: 2010
Subjects: subject: Marketing
subject: FOS: Economics and business
subject: Agriculture
subject: innovation
subject: market orientation
subject: relative emphasis
subject: value discipline strategies

description: Research studies have differed over the importance of the relative emphasis of a customer versus competitor orientation in the development of a market orientation (Slater and Narver, 1994; Tajeddini, 2010). In this study, we assess whether the emphasis of one component over another of a market orientation is an important determinant of firm performance within the Illinois beef industry, specifically the cow-calf sector. Using a series of OLS regressions, we examine the importance of a market orientation, relative emphasis, learning, innovativeness, and a cost focus on firm performance. Our results suggest that a market orientation is an important determinant of firm performance while the relative emphasis of customer versus competitor orientation is not statistically significant, corroborating the findings of Slater and Narver (1994). Implications and directions for future research are also discussed.
Gapless phases of color-superconducting matter
Creators: name: Shovkovy, Igor A.
name: Ruester, Stefan B.
name: Rischke, Dirk H.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We discuss gapless color superconductivity for neutral quark matter in beta equilibrium at zero as well as at nonzero temperature. Basic properties of gapless superconductors are reviewed. The current progress and the remaining problems in the understanding of the phase diagram of strange quark matter are discussed.
description: 8 pages, 2 figures. Plenary talk at Strangeness in Quark Matter 2004 (SQM2004), Cape Town, South Africa, 15-20 September 2004. Minor corrections
Comparative statistical hydroclimatology of glacial and nival rivers in southwest Yukon and northwest British Columbia
Creators: name: Fleming, Sean William
Publisher: name: University of British Columbia
Year: 2009

description: A diverse suite of nonparametric statistical and time series analysis techniques was applied to historical streamflow data from five glacier-fed and four snowmelt-fed rivers in the southwest Canadian subarctic, in order to determine whether, and if so, how the two fluvial regimes respond differently to variability in climatic forcing. Four types of streamflow variability dynamics, corresponding to four timescales of climatic forcing, were considered. Methodological development was also performed as appropriate. Results were as follows. At the seasonal level, the annual hydrographs of glacial and nival rivers differed in virtually every aspect of their flow magnitude and timing. Glacial rivers exhibited higher water resource productivity throughout the year and an extended freshet, and glacial cover was of similar importance to basin scale in determining annual hydrologic cycle amplitude, probably reflecting negative mass balance trends. High-frequency interannual streamflow fluctuations were then corifirmed to be strongly attenuated by watershed glacierization, but the effect was statistically significant only for robust metrics of freshet flow and timing and overall yearly flow magnitude. The dampening mechanism responsible appears restricted to variability timescales of roughly two years or less, consistent with separate analyses of lower-frequency behaviour. Glacial and nival rivers in the study area were then demonstrated to exhibit selective teleconnectivity to the Arctic Oscillation and El Nino-Southern Oscillation, respectively, from a net annual water resource perspective; this reflects a broader decoupling of glacial and nival yearly discharge anomalies. Seasonal responses were more complex. At the longest timescale considered, presence or absence of watershed glacierization was shown to control whether rivers here grew larger or smaller, respectively, in response to historically-observed climatic changes. Progressive shifts in annual hydrograph form were also observed and linked to glacierization. The results were in all cases readily physically interpretable, underscored the dramatic impacts of glacierization upon water resource variability, and strongly confirmed and extended existing understanding of glacial-nival hydroclirnatologic contrasts. In particular, this is the first study to examine the comparative hydroclimatology of glacial and nival rivers at a broad range of variability timescales using a single dataset, affording a more comprehensive view of such watershed dynamical processes.
Secure Beamforming for Multiple Intelligent Reflecting Surfaces Aided mmWave Systems
Creators: name: Xiu, Yue
name: Zhao, Jun
name: Yuen, Chau
name: Zhang, Zhongpei
name: Gui, Guan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: In this letter, secure beamforming in a multiple intelligent reflecting surfaces (IRSs)-aided millimeter-wave (mmWave) system is investigated. In this system, the secrecy rate is maximized by controlling the on-off status of each IRS as well as optimizing the phase shift matrix of the IRSs. This problem is posed as a joint optimization problem of transmit beamforming and IRS control, whose goal is to maximize the secrecy rate under the total transmission power and unit-modulus constraints. The problem is difficult to solve optimally due to the nonconvexity of constraint conditions and coupled variables. To deal with this problem, we propose an alternating optimization (AO)-based algorithm based on successive convex approximation (SCA) and manifold optimization (MO) technologies. Numerical simulations show that the proposed AO-based algorithm can effectively improve the secrecy rate and outperforms the traditional single IRS-aided scheme.
description: This paper appears in IEEE Communications Letters. Please feel free to contact us for questions or remarks. https://doi.org/10.1109/LCOMM.2020.3028135/
Economic Significance of Specific Export Promotion on Poverty Reduction and Inter- Industry Growth of Ethiopia
Creators: name: Chala, Zelalem T.
name: Norton, George W.
name: Grant, Jason H.
name: Chala, Zelalem T.
name: Norton, George W.
name: Grant, Jason H.
Publisher: name: Unknown
Year: 2010
Subjects: subject: Land Economics/Use
subject: Resource /Energy Economics and Policy
subject: Selective export promotion policy
subject: computable general equilibrium
subject: poverty reduction
subject: foreign direct investment

description: Micro simulated general equilibrium approach was used to analyze the economic significance of the current export promotion policy of Ethiopia. Simulation results, in general, indicated little achievements of economic growth and poverty reduction under selective export promotion. In this policy approach, only rural households were able to acquire higher income and lower poverty incidence. These achievements however were transmitted to small and big urban households when export promotion was assumed to be implemented across the board of all agricultural activities. Significant economic and inter-industrial growths were attained when the coffee industry was given equal policy treatments like other export agriculture
Genuine Einstein-Podolsky-Rosen steering of three-qubit states by multiple sequential observers
Creators: name: Gupta, Shashank
name: Maity, Ananda G.
name: Das, Debarshi
name: Roy, Arup
name: Majumdar, A. S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate the possibility of multiple use of a single copy of three-qubit states for genuine tripartite Einstein-Podolsky-Rosen (EPR) steering. A pure three-qubit state of either the Greenberger-Horne-Zeilinger (GHZ)-type or W-type is shared between two fixed observers in two wings and a sequence of multiple observers in the third wing who perform unsharp or non-projective measurements. The choice of measurement settings for each of the multiple observers in the third wing is independent and uncorrelated with the measurement settings and outcomes of the previous observers. We investigate all possible types of (2->1) and (1->2) genuine tripartite steering in the above set-up. For each case, we obtain an upper limit on the number of observers on the third wing who can demonstrate genuine EPR steering through violation of a tripartite steering inequality. We show that the GHZ state allows for a higher number of observers compared to that for W state. Additionally, (1->2) steering is possible for a larger range of the sharpness parameter compared to that for the (2->1) steering cases.
description: Close to the published version
OS NOVOS RUMOS DA ESTRATÉGIA DE MARKETING NO MERCADO FARMACÊUTICO
Creators: name: Correa, Gisleine Fregoneze
name: Oliveira, Luciel Henrique De
name: Correa, Gisleine Fregoneze
name: Oliveira, Luciel Henrique De
Publisher: name: Unknown
Year: 2008
Subjects: subject: Agribusiness
subject: Agricultural Finance
subject: Industrial Organization
subject: marketing
subject: strategy
subject: pharmaceutical industry
subject: sales promotion.

description: The pharmaceutical industry invests its sales force in contacts with doctors, making visits and publicizing its drugs, in order for them to prescribe these products to their patients. This work discusses the structure of the pharmaceutical market and how marketing strategies are used by laboratories in their relations with doctors and with the owners of pharmacies and drugstores. The cases of two laboratories, Aché and Boehringer Ingelheim, which serve as the reference for this study, are presented and discussed. The work demonstrates the difficulties arising from the lack of doctors, lack of assistance and the disloyal and unfair competition between ethical and promotional products. It was observed that the industries should improve their guidance and sales promotion actions among doctors. However, these strategies should be different from those applied in the sales and distribution points of the pharmaceutical products. Some ways of enhancing marketing among the two groups (doctors and pharmacies), which would lead to an increase in sales, are suggested. It is important also to invest more in information and in the education of patients, encouraging them to seek information about their problems and discuss them with their doctors, something that is now being done by the DTC (Direct-to-consumer) practices.
Cronin effect and high-p_T suppression from the Color Glass Condensate
Creators: name: Iancu, Edmond
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: I give a pedagogical survey of the nuclear collective effects associated with gluon saturation and their impact on particle production in high-energy proton (or deuteron)-nucleus collisions at RHIC. At central rapidity, the theory predicts a Cronin peak due to independent multiple scattering off the valence quarks in the nucleus. At forward rapidities, the peak flattens out and disappears very fast, because of the correlations induced through quantum evolution in the nuclear gluon distribution at small x. Also, the ratio R_{pA} between the particle yield in proton-nucleus and proton-proton collisions is rapidly suppressed when increasing the rapidity, because of saturation effects which slow down the evolution of the nucleus compared to that of the proton. This behaviour could be responsible for a similar trend observed in the deuteron-nucleus collisions at RHIC.
description: 22 pages, 10 eps figures, Invited talk at the International Workshop IX Hadron Physics and VII Relativistic Aspects of Nuclear Physics (HADRON-RANP 2004), Angra dos Reis, Brasil, March 28--April 03, 2004
Detection of Giant Pulses in pulsar PSR J1752+2359
Creators: name: Ershov, A. A.
name: Kuzmin, A. D.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report the detection of Giant Pulses (GPs) in the pulsar PSR J1752+2359. About one pulse in 270 has a peak flux density more than 40 times the peak flux density of an average pulse (AP), and the strongest GP is as large as 260. The energy of the strongest GP exceeds the energy of the average pulse by a factor of 200 which is greater than in other known pulsars with GPs. PSR J1752+2359 as well as the previously detected pulsars PSR B0031-07 and PSR B1112+50, belong to the first group of pulsars found to have GPs without a strong magnetic field at the light cylinder.
description: 5 pages, 4 figures, 1 table. Accepted for publication in A&A
Topological charges and conservation laws involving an arbitrary function of time for dynamical PDEs
Creators: name: Anco, Stephen C.
name: Recio, Elena
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mathematical Physics (math-ph)
subject: Analysis of PDEs (math.AP)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: Dynamical PDEs that have a spatial divergence form possess conservation laws that involve an arbitrary function of time. In one spatial dimension, such conservation laws are shown to describe the presence of an $x$-independent source/sink; in two and more spatial dimensions, they are shown to describe a topological charge. Two applications are demonstrated. First, a topological charge gives rise to an associated spatial potential system, allowing nonlocal conservation laws and symmetries to be found for a given dynamical PDE. Second,when a conserved density involves derivatives of an arbitrary function of time in addition to the function itself, its integral on any given spatial domain reduces to a boundary integral, which in some situations can place restrictions on initial/boundary data for which the dynamical PDE will be well-posed. Several examples of nonlinear PDEs from applied mathematics and integrable system theory are used to illustrate these new results.
description: 23 pages
The Factorized S-Matrix of CFT/AdS
Creators: name: Staudacher, Matthias
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We argue that the recently discovered integrability in the large-N CFT/AdS system is equivalent to diffractionless scattering of the corresponding hidden elementary excitations. This suggests that, perhaps, the key tool for finding the spectrum of this system is neither the gauge theory's dilatation operator nor the string sigma model's quantum Hamiltonian, but instead the respective factorized S-matrix. To illustrate the idea, we focus on the closed fermionic su(1|1) sector of the N=4 gauge theory. We introduce a new technique, the perturbative asymptotic Bethe ansatz, and use it to extract this sector's three-loop S-matrix from Beisert's involved algebraic work on the three-loop su(2|3) sector. We then show that the current knowledge about semiclassical and near-plane-wave quantum strings in the su(2), su(1|1) and sl(2) sectors of AdS_5 x S^5 is fully consistent with the existence of a factorized S-matrix. Analyzing the available information, we find an intriguing relation between the three associated S-matrices. Assuming that the relation also holds in gauge theory, we derive the three-loop S-matrix of the sl(2) sector even though this sector's dilatation operator is not yet known beyond one loop. The resulting Bethe ansatz reproduces the three-loop anomalous dimensions of twist-two operators recently conjectured by Kotikov, Lipatov, Onishchenko and Velizhanin, whose work is based on a highly complex QCD computation of Moch, Vermaseren and Vogt.
description: 38 pages, LaTeX, JHEP3.cls
Additional file 3 of The cirrhosis care Alberta (CCAB) protocol: implementing an evidence-based best practice order set for the management of liver cirrhosis - a hybrid type I effectiveness-implementation trial
Creators: name: Carbonneau, Michelle
name: Ejemai Amaize Eboreime
name: Hyde, Ashley
name: Campbell-Scherer, Denise
name: Faris, Peter
name: Gramlich, Leah
name: Tsuyuki, Ross T.
name: Congly, Stephen E.
name: Shaheen, Abdel Aziz
name: Sadler, Matthew
name: Zeman, Marilyn
name: Spiers, Jude
name: Abraldes, Juan G.
name: Sugars, Benjamin
name: Sia, Winnie
name: Green, Lee
name: Abdellatif, Dalia
name: Schaefer, Jeffrey P.
name: Vijeyakumar Selvarajah
name: Marr, Kaleb
name: Ryan, David
name: Westra, Yolande
name: Neeja Bakshi
name: Jayant C. Varghese
name: Tandon, Puneeta
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Additional file 3. Standard Protocol Items: Recommendations for Interventional Trials (SPIRIT) Checklist. SPIRIT reports on items to address in a clinical trial protocol
Fokker-Planck equation with variable diffusion coefficient in the Stratonovich approach
Creators: name: Fa, Kwok Sau
Publisher: name: arXiv
Year: 2005
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We consider the Langevin equation with multiplicative noise term which depends on time and space. The corresponding Fokker-Planck equation in Stratonovich approach is investigated. Its formal solution is obtained for an arbitrary multiplicative noise term given by $g(x,t)=D(x)T(t)$, and the behaviors of probability distributions, for some specific functions of $D(x)$% , are analyzed. In particular, for $D(x)\sim | x| ^{-θ/2}$, the physical solutions for the probability distribution in the Ito, Stratonovich and postpoint discretization approaches can be obtained and analyzed.
description: 6 pages in LATEX code
Groundwater pollution and emerging environmental challenges of industrial effluent irrigation in Mettupalayam Taluk, Tamil Nadu
Creators: name: Mukherjee, Sacchidananda
name: Nelliyat, Prakash
name: Mukherjee, Sacchidananda
name: Nelliyat, Prakash
Publisher: name: Unknown
Year: 2007
Subjects: subject: Agricultural and Food Policy
subject: Crop Production/Industries
subject: Resource /Energy Economics and Policy
subject: Groundwater
subject: Water pollution
subject: Income
subject: Water quality
subject: Irrigation water
subject: Effluents
subject: Wells
subject: Drinking water
subject: Domestic water
subject: Households
subject: Soil salinity
subject: Crop management

description: Industrial disposal of effluents on land and the subsequent pollution of groundwater and soil of surrounding farmlands – is a relatively new area of research. The environmental and socioeconomic aspects of industrial effluent irrigation have not been studied as extensively as domestic sewage based irrigation practices, at least for a developing country like India. The disposal of effluents on land has become a regular practice for some industries. Industries located in Mettupalayam Taluk, Tamil Nadu, dispose their effluents on land, and the farmers of the adjacent farmlands have complained that their shallow open wells get polluted and also the salt content of the soil has started building up slowly. This study attempts to capture the environmental and socioeconomic impacts of industrial effluent irrigation in different industrial locations at Mettupalayam Taluk, Tamil Nadu, through primary surveys and secondary information. This study found that the continuous disposal of industrial effluents on land, which has limited capacity to assimilate the pollution load, has led to groundwater pollution. The quality of groundwater in shallow open wells surrounding the industrial locations has deteriorated, and the application of polluted groundwater for irrigation has resulted in increased salt content of soils. In some locations drinking water wells (deep bore wells) also have a high concentration of salts. Since the farmers had already shifted their cropping pattern to salt-tolerant crops (like jasmine, curry leaf, tobacco, etc.) and substituted their irrigation source from shallow open wells to deep bore wells and/or river water, the impact of pollution on livelihoods was minimized. Since the local administration is supplying drinking water to households, the impact in the domestic sector has been minimized. It has also been noticed that in some locations industries are supplying drinking water to the affected households. However, if the pollution continues unabated it could pose serious problems in the future.
FÖRDERUNG DER ENTWICKLUNG DES LÄNDLICHEN RAUMES IN POLEN UND BAYERN
Creators: name: Sroka, Wojciech
name: Happe, Kathrin
name: Sroka, Wojciech
name: Happe, Kathrin
Publisher: name: Unknown
Year: 2009
Subjects: subject: Community/Rural/Urban Development
subject: Institutional and Behavioral Economics
subject: International Development
subject: Entwicklung ländlicher Räume
subject: vergleichende Analyse
subject: Polen
subject: Bayern
subject: Rural development
subject: comparative analysis
subject: Poland
subject: Bavaria

description: This paper compares the polish Programme for Rural Development (PROW) and the Bavarian counterpart (BayZAL). The focus is on comparing objectives and Instruments. The different development axes are at the centre of the analysis. The two programmes differ with regard to funding. The programmes are based on differing philosophies concerning the funding of different measures. These are due to differences in economic development and the quality of the human capital in rural areas. Both programmes emphasise measures related to agriculture despite of the claim to target at the whole rural area.
The CARMENES search for exoplanets around M dwarfs. The He I infrared triplet lines in PHOENIX models of M2-3 V stars
Creators: name: Hintz, D.
name: Fuhrmeister, B.
name: Czesla, S.
name: Schmitt, J. H. M. M.
name: Schweitzer, A.
name: Nagel, E.
name: Johnson, E. N.
name: Caballero, J. A.
name: Zechmeister, M.
name: Jeffers, S. V.
name: Reiners, A.
name: Ribas, I.
name: Amado, P. J.
name: Quirrenbach, A.
name: Anglada-Escudé, G.
name: Bauer, F. F.
name: Béjar, V. J. S.
name: Cortés-Contreras, M.
name: Dreizler, S.
name: Galadí-Enríquez, D.
name: Guenther, E. W.
name: Hauschildt, P. H.
name: Kaminski, A.
name: Kürster, M.
name: Lafarga, M.
name: del Fresno, M. López
name: Montes, D.
name: Morales, J. C.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The He I infrared (IR) line at a vacuum wavelength of 10833 A is a diagnostic for the investigation of atmospheres of stars and planets orbiting them. For the first time, we study the behavior of the He I IR line in a set of chromospheric models for M-dwarf stars, whose much denser chromospheres may favor collisions for the level population over photoionization and recombination, which are believed to be dominant in solar-type stars. For this purpose, we use published PHOENIX models for stars of spectral types M2 V and M3 V and also compute new series of models with different levels of activity following an ansatz developed for the case of the Sun. We perform a detailed analysis of the behavior of the He I IR line within these models. We evaluate the line in relation to other chromospheric lines and also the influence of the extreme ultraviolet (EUV) radiation field. The analysis of the He I IR line strengths as a function of the respective EUV radiation field strengths suggests that the mechanism of photoionization and recombination is necessary to form the line for inactive models, while collisions start to play a role in our most active models. Moreover, the published model set, which is optimized in the ranges of the Na I D2, H$α$, and the bluest Ca II IR triplet line, gives an adequate prediction of the He I IR line for most stars of the stellar sample. Because especially the most inactive stars with weak He I IR lines are fit worst by our models, it seems that our assumption of a 100% filling factor of a single inactive component no longer holds for these stars.
description: Accepted for publication in A&A, 13 pages, 9 figures, 4 tables
Polarizations in B -> VV decays
Creators: name: Li, Hsiang-nan
name: Mishima, Satoshi
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We demonstrate that the polarization fractions of most tree-dominated $B\to VV$ decays can be simply understood by means of kinematics in the heavy-quark or large-energy limit. For example, the longitudinal polarization fractions $R_L$ of the $B^0\to (D_s^{*+}, D^{*+}, ρ^+)D^{*-}$ and $B^+\to (D_s^{*+}, D^{*+}, ρ^+)ρ^0$ modes increase as the masses of the mesons $D_s^{*+}, D^{*+}, ρ^+$ emitted from the weak vertex decrease. The subleading finite-mass or finite-energy corrections modify these simple estimates only slightly. Our predictions for the $B\to D_{(s)}^* D^*$ polarization fractions derived in the perturbative QCD framework, especially $R_L\sim 1$ for $B^0\to {\bar D}^{*0} D^{*0}$ governed by nonfactorizable $W$-exchange amplitudes, can be confronted with future data. For penguin-dominated modes, such as $B\toρ(ω) K^*$, the polarization fractions can be understood by the annihilation effect from the $(S-P)(S+P)$ operators, plus the interference with a small tree amplitude. At last, we comment on the various mechanism proposed in the literature to explain the abnormal $B\to ϕK^*$ polarization data, none of which are satisfactory.
description: 26 pages, 4 figures; corrected typos, version to appear in Phys. Rev. D
VERGLEICH DER BERGLANDWIRTSCHAFT IN POLEN UND DEUTSCHLAND
Creators: name: Sroka, Wojciech
name: Happe, Kathrin
name: Sroka, Wojciech
name: Happe, Kathrin
Publisher: name: Unknown
Year: 2009
Subjects: subject: Community/Rural/Urban Development
subject: Farm Management
subject: Institutional and Behavioral Economics
subject: International Development
subject: Berglandwirtschaft
subject: Entwicklungsperspektiven
subject: Polen
subject: Bayern
subject: Mountainous areas
subject: development perspectives
subject: Poland
subject: Bavaria
subject: Rolnictwo górskie
subject: perspektywy rozwoju
subject: Polska
subject: Bawaria

description: This paper summarises results of a expert interviews on the state and development of agriculture and rural areas in selected municiapalities in the Polish Carapatian mountains and in the German Alps. Compared to the German Alps, the Polish region has a number of particularities originating from the different history and the transformation process. The overall development in the Polish region is still lagging behind. The implementation of measures of the Common Agricultural Policy has not yet led to significant structural changes in the Carpathian region. The surveyed experts have identified a positive perspective for the development of agriculture. They expect tourism and agriculture to be the main sources of income. A complete disappearance of agriculture from mountainous regions will not be acceptable.
The Tsa Da Glisza (Regal Ridge) emerald occurrence, Southeastern Yukon Territory, Canada : descriptive, genetic, and exploration models
Creators: name: Neufeld, Heather Leah Douglas
Publisher: name: University of British Columbia
Year: 2009

description: Emerald at the Tsa da Glisza property in the Finlayson Lake district of southeastern Yukon is hosted by mid-Paleozoic mafic metavolcanic rocks which overly the shallowly dipping western edge of a 112 Ma granite pluton. The main host rocks for the mineralization are high-Ca boninites (high-magnesium basalt to andesite) with anomalously high Cr contents. Beryl occurs within quartz-tourmaline veins, and in highly altered schist zones either adjacent to the veins, or near vein terminations. Several generations of syn- to late tectonic quartz veins are present at Tsa da Glisza, and emeralds are associated mainly with the latest vein set, especially near the intersection between these and older veins. The quartz veining is related to progressive Cretaceous deformation and to the relatively late emplacement of the granite intrusions. Aplite dikes associated with the intrusion locally contain beryl within quartz-rich segregations, and these beryl-bearing aplites differ chemically from non-mineralized intrusions by having higher Be and Na and lower K, Li, and F contents. The oxygen isotopic composition of the granite is distinct from that of the chlorite schist. The extent of homogenization of the two isotopic signatures can be tracked by the changing oxygen isotopic composition, and may be used to determine whether there was sufficient reaction between the veins fluids and host schist to produce emerald. 3 9Ar-4 0Ar geochronology confirms that mineralization occurred synchronous with regional deformation and metamorphism related to intrusion of the granite pluton from approximately 112 to 108 Ma. A genetic model for the emerald mineralization has been formulated: vein fluids were mixtures of fluids from both magmatic and local metasomatic sources. Beryllium derived from an adjacent Cretaceous granite was transported as both hydroxide and fluoride complexes within dominantly magmatic fluids. Emerald crystallized during cooling after the magmatic fluids mixed with hydrothermal fluids that had scavenged Cr from the surrounding mafic schist. Based on this genetic model, further exploration in the Finlayson Lake region, and the northern Cordillera, should focus on areas where permeable (schist rather than serpentinized ultramafic), high-Cr host rock is in close proximity to evolved felsic intrusive rocks.
"Institutional adaptation" for integrated water resources management: An effective strategy for managing Asian river basins
Creators: name: Bandaragoda, Don Jayatissa
name: Bandaragoda, Don Jayatissa
Publisher: name: Unknown
Year: 2006
Subjects: subject: International Development
subject: Production Economics
subject: Resource /Energy Economics and Policy
subject: River basin development
subject: Irrigation management
subject: Institutional development
subject: Organizations
subject: Water allocation
subject: Developing countries

description: In many developing countries, their governments dominate the field of water resources management. Even in “participatory irrigation management” efforts, the governments play a dominant role. As these efforts are rarely based on any internally generated demand from the water users, they usually fail to create viable organizations at the local level. A similar setback can be seen in the more recent institutional reforms in Asia’s water sector, which are promoted by the donor agencies and, national and international development professionals. A survey of experiences in Asian countries shows that no country has successfully completed establishing new water sector policies and laws and river basin organizations, as prescribed. The need to improve current performance of water resources management is widely appreciated. In managing the scarce water resources, a change in attitude and approach is seen to be essential. Participatory learning and action methods conducted in a study of selected river basins in five Asian countries surfaced a distinct need for coordination at the river basin level. They also indicated a clear stakeholder preference for establishing coordinating mechanisms, by way of adapting the existing institutions, as an initial step towards greater stakeholder control of river basin management. Essentially, cost-effective and contextually appropriate institutional arrangements were preferred over the prescribed standard models, in order to meet the varying needs related to integrated water resources management.
More comments on the high-energy behavior of string scattering amplitudes in warped spacetimes
Creators: name: Andreev, Oleg
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the Regge limit of string amplitudes within the model of Polchinski-Strassler for string scattering in warped spacetimes. We also present some numerical estimations of the Regge slopes. It is quite remarkable that the real values of the slopes are inside a range of ours.
description: 11 pages, 2 figures; v3: acknowledgment added
THE ROLE OF AGRICULTURE FOR OVERCOMING RURAL POVERTY IN ROMANIA
Creators: name: Salasan, Cosmin
name: Fritzsch, Jana
name: Salasan, Cosmin
name: Fritzsch, Jana
Publisher: name: Unknown
Year: 2009
Subjects: Agricultural and Food Policy
Community/Rural/Urban Development
Farm Management
Food Security and Poverty
International Development

description: Topical literature sees agriculture's ability to provide food and cash income as a major role in poverty reduction. However, it can only be a driving force for economic development for very poor countries. Economic indicators confirm that Romania is not a very poor country, although poverty has been an issue. During recent years, Romania has progressed successfully in reducing poverty. On the one hand, this can be attributed to its positive overall economic development. On the other hand, agriculture has served as a social safety net for many millions of people. Now the agricultural sector is dominated by subsistent and semi-subsistent farm households headed by persons of retirement age without formal agricultural training. Only 40% of the utilised agricultural area (UAA) is operated from commercial private and corporate farms. Thus, their creating incentives for economic growth are unlikely. While large-scale corporate farms are already integrated in agri-food chains, the upcoming group of commercial private farmers will have to show that it can compete on the agri-food market. Although agriculture has been contributing to poverty reduction, there are good reasons to believe that future economic development will rather come from outside the agricultural sector and agriculture will continue to play the role of a social safety net. Strengthening the Romanian agricultural sector calls for concerted policy actions that are targeted to different groups. Fostering land restitution to former owner families, developing a functioning land sales and rental market, and providing access to agricultural product markets could promote the resurgence of a highly productive group of commercial private farmers. Non-farm job creation in rural areas could provide income opportunities for an abundant agricultural labour force. Both new farmers and potential non-farm employees seem to require profession-specific advice and training to become competitive in their transition environment. The large group of pensioners could be convinced to exit the agricultural sector if they could rely on an income from social provisions that covers their daily needs.
Two-Loop Relations for Heavy-Quark Parameters in the Shape-Function Scheme
Creators: name: Neubert, Matthias
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Moments of the renormalized B-meson shape function provide a natural way to define short-distance, running heavy-quark parameters such as the b-quark mass and kinetic energy. These parameters are particularly well suited for studies of inclusive decay distributions. The definitions of m_b and mu_pi^2 in this ``shape-function scheme'' are derived to two-loop order. Using previous determinations of heavy-quark parameters in other schemes, we find m_b=(4.63+-0.08) GeV and mu_π^2=(0.15+-0.07) GeV^2 at a reference scale of 1.5 GeV.
description: 10 pages, 1 figure. Two-loop shape-function anomalous dimension corrected; minor numerical changes. Version to appear in Physics Letters B
Characterization and investigation of submarine groundwater discharge from a coastal aquifer into the nearshore environment
Creators: name: Caulkins, Joshua Lee
Publisher: name: University of British Columbia
Year: 2009

description: The current trend of global populations moving increasingly to high density, coastal cities places a greater emphasis upon the water quality of aquifers supplying those cities. Problems that affect coastal aquifers (e.g. saltwater intrusion, non-point source pollution) will be amplified as this trend increases. The goal of this research project is to understand the processes that control freshwater/saltwater interactions in the coastal zone, specifically in areas of high submarine groundwater discharge (SGD). A site in NW Florida along the Gulf Coast is a well-documented SGD locale and provides an excellent opportunity to examine how tidal fluctuations, differential pressure in the seabed and groundwater seepage rates are interrelated. Experiments at the site focus on characterization of the nearshore aquifer, submarine groundwater discharge at the seabed and numerical modeling of the system. New onshore wells at the field site show that hydraulic conductivities in onshore region are similar to those in the offshore region. Slug tests and water level monitoring of the onshore wells are used to measure a seaward, horizontal hydraulic gradient. Direct measurements of discharge are conducted with an automated seepage meter, which shows that peak discharge rates tend to occur at the transition between high and low tides. A new apparatus called a differential piezometer system (DPS) is designed and used to measure differential hydraulic head in the seabed created by seepage and tidal interactions. This system failed to accurately portray differential head fluctuations in the seabed as a result o f calibration error. Salinity samples are collected from on and offshore wells and from a newly installed multi-level well, the data of which are made into salinity profiles. These profiles define the boundaries of a saline wedge and mixing zone in the nearshore region. FRAC3DVS is flow and transport groundwater model that is used to design and run a 1-dimensional numerical model. The model results confirm the temporal effects of tidal elevation on discharge rates observed in the seepage meter.