cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Hyperpolarizabilities for the one-dimensional infinite single-electron periodic systems: I. Analytical solutions under dipole-dipole correlations
Creators: name: Jiang, Shidong
name: Xu, Minzhong
Publisher: name: arXiv
Year: 2005
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Astrophysics (astro-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: Atomic Physics (physics.atom-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The analytical solutions for the general-four-wave-mixing hyperpolarizabilities $χ^{(3)}(-(w_1+w_2+w_3);w_1,w_2,w_3)$ on infinite chains under both Su-Shrieffer-Heeger and Takayama-Lin-Liu-Maki models of trans-polyacetylene are obtained through the scheme of dipole-dipole correlation. Analytical expressions of DC Kerr effect $χ^{(3)}(-w;0,0,w)$, DC-induced second harmonic generation $χ^{(3)}(-2w;0,w,w)$, optical Kerr effect $χ^{(3)}(-w;w,-w,w)$ and DC-electric-field-induced optical rectification $χ^{(3)}(0;w,-w,0)$ are derived. By including or excluding ${\bf \nabla_k}$ terms in the calculations, comparisons show that the intraband contributions dominate the hyperpolarizabilities if they are included. $\nabla_k$ term or intraband transition leads to the break of the overall permutation symmetry in $χ^{(3)}$ even for the low frequency and non-resonant regions. Hence it breaks the Kleinman symmetry that is directly based on the overall permutation symmetry. Our calculations provide a clear understanding of the Kleinman symmetry breaks that are widely observed in many experiments. We also suggest a feasible experiment on $χ^{(3)}$ to test the validity of overall permutation symmetry and our theoretical prediction. Finally, our calculations show the following trends for the various third-order nonlinear optical processes in the low frequency and non-resonant region: $χ^{(3)}(-3w;w,w,w)> χ^{(3)}(-2w;0,w,w)> χ^{(3)}(-w;w,-w,w)>χ^{(3)}(-w; 0,0,w)>= χ^{(3)}(0;w,-w,0)$, and in the resonant region: $χ^{(3)}(-w;0,0,w)> χ^{(3)}(-w;w,-w,w)> χ^{(3)}(-2w;0,w,w)>χ^{(3)}(0;w,-w,0)>χ^{(3)}(-3w;w,w,w)$. (w=ω)
description: 31 pages, 6 figures
Szylkarski, Wladimir / Lettenbauer, Wilhelm / Müller, Ludolf / Lossky, Nikolai / Setschkareff, Wsewolod / Strauch, Johannes / Wedel, Erwin: Wladimir Solowjew
Creators: name: Slenczka, Reinhard
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 30 Nr. 3 (1981): Ökumenische Rundschau, Band 30, Heft 3
PLATFORM-BASED ECOSYSTEMIC BUSINESS MODELS IN FUTURE MOBILE OPERATOR BUSINESS
Creators: name: Yrjölä, Seppo Ilmari
name: Ahokangas, Petri
name: Matinmikko-Blue, Marja
Publisher: name: Journal of Business Models
Year: 2021

description: Purpose - As an emerging field, the fifth generation, 5G, mobile communications technologies related business models have only been discussed to a limited extent in the literature, and platform business models in general have seldom been examined. Therefore, the purpose of this paper is to explore how to understand and capture the evolution of future platform-based ecosystemic business models in 5G? Approach - With roots in economics and engineering, this study has an intrinsically dualistic perspective to platform business utilizing the 4C ecosystemic framework and the as a Service (aaS) digital service business model typologies. This research follows a cyclical process of research-oriented action research, collecting data in two phases from the future-oriented World Cafe workshops held at Nokia RadioActive! user group event in Espoo in November 2017 and 6G Wireless Summit in Levi in March 2019. Findings - The paper uncovers the extended ecosystemic platform architecture for the business model and ecosystem research consisting of components, interfaces, data and algorithms. Value – We are currently lacking a coherent approach for researching platform-based ecosystemic business models as the extant discussions tend to focus either on ecosystem(ic) features of business models or platform business models that, however, share common characteristics. The study adopts a value-based and service-dominant lens focused on business model research at the ecosystemic level. For the first time, the study introduces the extended ecosystemic platform architecture, investigating how this business framework can enable the transformation of the 5G.
description: Journal of Business Models, Vol. 9 No. 4 (2021): Vol 9, No 4. Journal of Business Models
The YMCA (Yes, Magellanic Clouds Again) survey: probing the outer regions of the Magellanic system with VST
Creators: name: Gatto, Massimiliano
name: Ripepi, Vincenzo
name: Bellazzini, Michele
name: Tosi, Monica
name: Cignoni, Michele
name: Tortora, Crescenzo
name: Marconi, Marcella
name: Dall'Ora, Massimo
name: Cioni, Maria-Rosa L.
name: Musella, Ilaria
name: Schipani, Pietro
name: Spavone, Marilena
Publisher: name: arXiv
Year: 2024
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The Magellanic Clouds (MCs) are the Milky Way's most massive dwarf satellites. As they also represent the closest pair of galaxies in an ongoing tidal interaction, while simultaneously infalling into the Milky Way halo, they provide a unique opportunity to study in detail an ongoing three-body encounter. We present the ``YMCA (Yes, Magellanic Clouds Again) survey: probing the outer regions of the Magellanic system with VST'' based on deep optical photometry carried out with the VLT Survey Telescope (VST). YMCA targeted 110 square degrees, in the g and i filters, in the periphery of both the MCs, including a long strip in between the Large Magellanic Cloud (LMC) and the Small Magellanic Cloud (SMC). The photometry of YMCA is sufficiently deep (50\% complete down to $g \simeq 23.5-24.0$~mag) to allow for a detailed analysis of main-sequence stars in regions of the MCs remained relatively unexplored at these faint magnitudes. The resulting colour-magnitude diagrams reveal that the outskirts of the MCs are predominantly characterized by intermediate-age and old stellar populations, with limited or negligible evidence of recent star formation. The analysis of the age distribution of star clusters (SCs) within the surveyed area, both already known and newly discovered candidates, hints at a close fly-by between the LMC and SMC that occurred $\simeq 2.5-3.0$~Gyr ago, in agreement with previous results. We also report the discovery of candidate SCs with ages within the so-called ``age-gap'', questioning its real existence.
description: 28 pages, 21 figures. Accepted for publication on A&A
Supply Chain Practice, Supply Chain Performance Indicators and Competitive Advantage of Australian Beef Enterprises: A Conceptual Framework
Creators: name: Jie, Ferry
name: Parton, Kevin A.
name: Cox, Rodney J.
name: Jie, Ferry
name: Parton, Kevin A.
name: Cox, Rodney J.
Publisher: name: Unknown
Year: 2007
Subjects: Agribusiness

description: This research focuses on an Australian agribusiness supply chain, the Australian Beef Supply Chain. The definition of the Australian Beef Supply Chain is the chain or sequence of all activities from the breeding property to the domestic or overseas consumers. The beef sector in Australia is undergoing rapid change because of globalisation, a highly competitive beef market (local and export), quicker production cycle and delivery times and consequently reduced inventories, a general speed-up of the rate of change in the business environment, the trend toward more outsourcing of activities, and the rapid development of IT. In this business environment, advanced supply chain systems have the potential to provide significant contributions to Australian beef industry performance. A conceptual framework of the research project has been proposed. There are three elements of conceptual framework. Firstly, supply chain practice of Australian beef industry consists of five sub-elements such as strategic supplier partnerships, customer relationships, information sharing, information quality and a lean system. Moreover, there is an antecedent of cooperative behaviour such as trust and commitment influencing supply chain practice and supply chain performance indicators. Secondly, supply chain performance indicators include four sub-elements such as flexibility, efficiency, food quality and responsiveness. Finally, the competitive advantage framework of the Australian beef enterprises consists of price, quality, export sales growth and time to market. As a further step of the research after developing the conceptual framework, the research project focuses the analysis on how the antecedents of the sub-elements of supply chain practice affect supply chain performance in Australian beef enterprises, how trust and commitment in trading partners affect supply chain performance, how attributes such as flexibility, efficiency, food quality and responsiveness influence the sub-elements of competitive advantage. The research project leads on to further work on how Australian beef enterprises measure their supply chain performance and what the major difficulties are arising when implementing supply chain management in the Australian beef industry and what kind of changes can be made to beef supply chains to enhance their performance.
Objectives-Based Fisheries Management; Building on 20-years Experience with Individual Transferable Quotas
Creators: name: Peacey, Jonathan
name: Connor, Robin
name: Peacey, Jonathan
name: Connor, Robin
Publisher: name: Unknown
Year: 2007
Subjects: Resource /Energy Economics and Policy

description: The year 2006 marked the twentieth anniversary of the introduction of the Quota Management System (QMS) in New Zealand fisheries management. This major institutional change made individual transferable quota (ITQ) the quantitative authority for commercial fisheries catches, leading structural change and economic development to transform the New Zealand fishing industry into a prosperous and major contributor to the national economy. In addition to being a significant anniversary for the QMS, last year also saw significant development of a new objectives-based co-management framework by the Ministry of Fisheries. Created to build on the strengths of the QMS, the new approach seeks to establish a hierarchy of specified objectives for fisheries management from overall statements of desired outcomes through to detailed standards for processes and management performance explicitly linked through stated intervention logic. Working to this set of objectives and standards, an agency-facilitated stakeholder process will develop agreed management plans for defined fisheries. Objectives must be measurable and linkages testable, with monitoring of specified performance indicators being integral components of agreed plans. The new Fisheries Plan framework capitalises on the coherence brought to the commercial sector by secure catching rights under the QMS, attempting to extend this across the broader stakeholder community. It is endeavouring to establish a new process model for agency-initiated co-management that has the potential to draw diverse stakeholders together and develop common goals for management of their fisheries. After providing a brief introduction to the New Zealand context and the QMS and its history, this paper sets out to assess how the QMS has performed against the assumptions that underpinned its implementation in the mid-1980s. This in turn provides the context for the next step the development of the Fisheries Plan framework envisioned to move the overall management system in New Zealand forward into an era of broader stewardship of resources and environment, by all fisheries stakeholders. This new framework and the progress thus far are briefly described.
A Density Consistency approach to the inverse Ising problem
Creators: name: Braunstein, Alfredo
name: Catania, Giovanni
name: Dall'Asta, Luca
name: Muntoni, Anna Paola
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences
subject: I.2.6; G.3

description: We propose a novel approach to the inverse Ising problem which employs the recently introduced Density Consistency approximation (DC) to determine the model parameters (couplings and external fields) maximizing the likelihood of given empirical data. This method allows for closed-form expressions of the inferred parameters as a function of the first and second empirical moments. Such expressions have a similar structure to the small-correlation expansion derived by Sessak and Monasson, of which they provide an improvement in the case of non-zero magnetization at low temperatures, as well as in presence of random external fields. The present work provides an extensive comparison with most common inference methods used to reconstruct the model parameters in several regimes, i.e. by varying both the network topology and the distribution of fields and couplings. The comparison shows that no method is uniformly better than every other one, but DC appears nevertheless as one of the most accurate and reliable approaches to infer couplings and fields from first and second moments in a significant range of parameters.
description: 15 pages, 4 figures
Introduzione
Creators: name: Esposito, Edoardo
Publisher: name: ACME
Year: 1970

description: Il termine “modernismo”, letterariamente riservato, fino a non molto tempo fa, a designare nell’ambito della cultura angloamericana l’insorgere fra gli anni dieci e venti del Novecento di istanze e tensioni che dovevano trovare nelle opere di Joyce, Pound, Eliot, Woolf un’espressione ritenuta emblematica, ha ricevuto positiva accoglienza e appare ormai largamente usato anche nella critica italiana, che non più condizionata dal riferimento – già inevitabile ma ormai lontano – alle ansie di rinnovamento religioso che si legarono ai nomi di Romolo Murri e di Ernesto Buonaiuti ha creduto opportuno uniformarsi a quanto era invalso altrove, e non solo nella letteratura.
description: ACME, Vol 68, No 2 (2015)
Il modernismo e il tempo:  rivolgimenti concettuali identitari e formali
Creators: name: Picchione, John
Publisher: name: ACME
Year: 1970

description: La concezione del tempo costituisce uno dei modelli portanti di ogni cultura e civiltà. Intorno ad essa gravitano rituali, visioni metafisiche, organizzazione sociale, espressioni dell’immaginario e, in sintesi, i significati stessi dell’esistere. Le molteplici versioni che si sono susseguite attraverso tutto l’arco dello sviluppo umano possono essere sintetizzate in quattro categorie, ognuna segnata da un’immagine spazializzata. La figura del cerchio come segno di una versione naturalistica della temporalità che prevede il ritorno ciclico, circolare appunto, degli eventi.
description: ACME, Vol 68, No 2 (2015)
Health Economics for Low-Income Countries
Creators: name: Mwabu, Germano
name: Mwabu, Germano
Publisher: name: Unknown
Year: 2007
Subjects: subject: Health Economics and Policy
subject: Health Production
subject: Health Care Markets
subject: Household Production and Intrahousehold Allocation
subject: Health Economics
subject: Low-income countries.

description: Good health is a determinant of economic growth and a component of well-being. This paper discusses and synthesizes economic models of individual and household behavior, showing how they may be used to illuminate health policy making in low-income countries. The models could help address questions such as: How can the health of the poor be improved, and what are the economic consequences of better health? What policies would improve intra-household distribution of health outcomes? An extensive literature on health human capital and household models, and on related field experiments is reviewed in an attempt to answer these questions. It is found that there are large returns to health improvements in low-income countries. Moreover, health improvements in poor nations can be achieved through implementation of simple interventions such as dietary supplements, control of parasitic diseases, and pro-poor social expenditures. The paper concludes with a discussion of these policy options. Key Words: Health Production, Health Care Markets, Household Production and Intrahousehold Allocation, Health Economics, Low-income countries. JEL Codes: I12, I11, D13, O12
Fertility in Developing Countries
Creators: name: Schultz, T. Paul
name: Schultz, T. Paul
Publisher: name: Unknown
Year: 2007
Subjects: subject: Labor and Human Capital
subject: Fertility Determination
subject: Malthus
subject: Household Demands
subject: Fertility Effects

description: The associations between fertility and outcomes in the family and society have been treated as causal, but this is inaccurate if fertility is a choice coordinated by families with other life-cycle decisions, including labour supply of mothers and children, child human capital, and savings. Estimating how exogenous changes in fertility that are uncorrelated with preferences or constraints affect others depends on our specifying a valid instrumental variable for fertility. Twins have served as such an instrument and confirm that the cross-effects of fertility estimated on the basis of this instrument are smaller in absolute value than their associations.
Effect of External Magnetic Field on Critical Current for the Onset of Virtual Cathode Oscillations in Relativistic Electron Beams
Creators: name: Hramov, Alexander E.
name: Koronovskii, Alexey
name: Morozov, Mikhail
name: Mushtakov, Alexander
Publisher: name: arXiv
Year: 2008
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: In this Letter we research the space charge limiting current value at which the oscillating virtual cathode is formed in the relativistic electron beam as a function of the external magnetic field guiding the beam electrons. It is shown that the space charge limiting (critical) current decreases with growth of the external magnetic field, and that there is an optimal induction value of the magnetic field at which the critical current for the onset of virtual cathode oscillations in the electron beam is minimum. For the strong external magnetic field the space charge limiting current corresponds to the analytical relation derived under the assumption that the motion of the electron beam is one-dimensional [High Power Microwave Sources. Artech House Microwave Library, 1987. Chapter~13]. Such behavior is explained by the characteristic features of the dynamics of electron space charge in the longitudinal and radial directions in the drift space at the different external magnetic fields.
description: 25 pages, 6 figures
Nuove riflessioni sul Grand Hotel al Campo dei Fiori di Varese: architettura, costruzione, paesaggio nell’opera di Giuseppe Sommaruga
Creators: name: Selvafolta, Ornella
Publisher: name: ACME
Year: 1970

description: Progettato a partire dal 1908 e inaugurato nel 1912, il Grand Hotel Monte Tre Croci al Campo dei Fiori, presso Varese, è tra le più significative architetture di Giuseppe Sommaruga e del modernismo italiano: per l’impegno costruttivo e l’immaginazione compositiva, per gli aspetti tecnici e le scelte formali, per il ruolo territoriale e l’inserimento paesaggistico. Tutti fattori straordinariamente favorevoli all’estrinsecarsi di contenuti moderni che, in diversa misura, appartengono all’opera di Sommaruga, ma che in questo caso sembrano intensificarsi e trovare più esplicite possibilità di espressione.
description: ACME, Vol 68, No 2 (2015)
Magnon squeezing via reservoir-engineered optomagnomechanics
Creators: name: Fan, Zhi-Yuan
name: Zhu, Huai-Bing
name: Li, Hao-Tian
name: Li, Jie
Publisher: name: arXiv
Year: 2024
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We show how to prepare magnonic squeezed states in an optomagnomechanical system, in which magnetostriction induced mechanical displacement couples to an optical cavity via radiation pressure. We discuss two scenarios depending on whether the magnomechanical coupling is linear or dispersive. We show that in both cases the strong mechanical squeezing obtained via two-tone driving of the optical cavity can be efficiently transferred to the magnon mode. In the linear coupling case, stationary magnon squeezing is achieved; while in the dispersive coupling case, a transient magnonic squeezed state is prepared in a two-step protocol. The proposed magnonic squeezed states find promising applications in quantum information processing and quantum sensing using magnons.
description: Special Topic on "Brillouin Scattering and Optomechanics" in APL Photonics
Coherence length and quantum geometry in a dilute flat-band superconductor
Creators: name: Iskin, M.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: To explore the influence of quantum-geometric effects on the Ginzburg-Landau coherence length in a dilute flat-band superconductor, we adopt a BCS-BEC crossover approach to the multiband pyrochlore-Hubbard model near the critical temperature for superconductivity. Our self-consistent formulation for this three-dimensional lattice benchmarks very well against the so-called zero-temperature coherence length, demonstrating the monotonic decay of the coherence length to zero as the interaction strength increases. Additionally, we show that the effective mass of the many-body bound states (i.e., Cooper pairs) is nearly identical to that of the lowest-lying two-body bound states in the dilute flat-band limit.
description: 10 pages with 3 figures. To appear in PRB
Apresentação do dossiê "Relações entre o Papado e a Península Ibérica (séculos XI-XIII)"
Creators: name: Veneziani, Enrico
Publisher: name: Lusitania Sacra
Year: 2023

description: Lusitania Sacra, n. 48 (2023): Relações entre o Papado e a Península Ibérica (séculos XI-XIII)
Interview about weaving and cultural transmission
Creators: name: Charley, Ensela
name: Rudolph, Johnny (Soni)
name: Ding, Lydia
name: Drummond, Emily
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2020
Subjects: subject: nkr

description: One .wav audio file for an interview about weaving and the transmission of cultural knowledge.
Population Policies, Fertility, Women's Human Capital, and Child Quality
Creators: name: Schultz, T. Paul
name: Schultz, T. Paul
Publisher: name: Unknown
Year: 2007
Subjects: subject: Labor and Human Capital
subject: Consequences of Fertility Decline
subject: Child Quality
subject: Evaluation of Population Policies

description: Population policies are defined here as voluntary programs which help people control their fertility and expect to improve their lives. There are few studies of the long-run effects of policy-induced changes in fertility on the welfare of women, such as policies that subsidize the diffusion and use of best practice birth control technologies. Evaluation of the consequences of such family planning programs almost never assess their long-run consequences, such as on labor supply, savings, or investment in the human capital of children, although they occasionally estimate the short-run association with the adoption of contraception or age-specific fertility. The dearth of long-run family planning experiments has led economists to consider instrumental variables as a substitute for policy interventions which not only determine variation in fertility but are arguably independent of the reproductive preferences of parents or unobserved constraints that might influence family life cycle behaviors. Using these instrumental variables to estimate the effect of this exogenous variation in fertility on family outcomes, economists discover these Across effects@ of fertility on family welfare outcomes tend to be substantially smaller in absolute magnitude than the OLS estimates of partial correlations referred to in the literature as evidence of the beneficial social externalities associated with the policies that reduce fertility. The paper summarizes critically the empirical literature on fertility and development and proposes an agenda for research on the topic.
Website fingerprinting on early QUIC traffic
Creators: name: Zhan, Pengwei
name: Wang, Liming
name: Tang, Yi
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cryptography and Security (cs.CR)
subject: Machine Learning (cs.LG)
subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: Cryptographic protocols have been widely used to protect the user's privacy and avoid exposing private information. QUIC (Quick UDP Internet Connections), including the version originally designed by Google (GQUIC) and the version standardized by IETF (IQUIC), as alternatives to the traditional HTTP, demonstrate their unique transmission characteristics: based on UDP for encrypted resource transmitting, accelerating web page rendering. However, existing encrypted transmission schemes based on TCP are vulnerable to website fingerprinting (WFP) attacks, allowing adversaries to infer the users' visited websites by eavesdropping on the transmission channel. Whether GQUIC and IQUIC can effectively resist such attacks is worth investigating. In this paper, we study the vulnerabilities of GQUIC, IQUIC, and HTTPS to WFP attacks from the perspective of traffic analysis. Extensive experiments show that, in the early traffic scenario, GQUIC is the most vulnerable to WFP attacks among GQUIC, IQUIC, and HTTPS, while IQUIC is more vulnerable than HTTPS, but the vulnerability of the three protocols is similar in the normal full traffic scenario. Features transferring analysis shows that most features are transferable between protocols when on normal full traffic scenario. However, combining with the qualitative analysis of latent feature representation, we find that the transferring is inefficient when on early traffic, as GQUIC, IQUIC, and HTTPS show the significantly different magnitude of variation in the traffic distribution on early traffic. By upgrading the one-time WFP attacks to multiple WFP Top-a attacks, we find that the attack accuracy on GQUIC and IQUIC reach 95.4% and 95.5%, respectively, with only 40 packets and just using simple features, whereas reach only 60.7% when on HTTPS. We also demonstrate that the vulnerability of IQUIC is only slightly dependent on the network environment.
description: This work has been accepted by Elsevier Computer Networks for publication
Simultaneous Extraction of the Weak Radius and the Weak Mixing Angle from Parity-Violating Electron Scattering on $^{12}\mathrm{C}$
Creators: name: Cadeddu, Matteo
name: Cargioli, Nicola
name: Erler, Jens
name: Gorchtein, Mikhail
name: Piekarewicz, Jorge
name: Roca-Maza, Xavier
name: Spiesberger, Hubert
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We study the impact of nuclear structure uncertainties on a measurement of the weak charge of $^{12}\mathrm{C}$ at the future MESA facility in Mainz. Information from a large variety of nuclear models, accurately calibrated to the ground-state properties of selected nuclei, suggest that a $0.3$% precision measurement of the parity-violating asymmetry at forward angles will not be compromised by nuclear structure effects, thereby allowing a world-leading determination of the weak charge of $^{12}\mathrm{C}$. Furthermore, we show that a combination of measurements of the parity-violating asymmetry at forward and backward angles for the same electron beam energy can be used to extract information on the nuclear weak charge distribution. We conclude that a $0.34$% precision on the weak radius of $^{12}\mathrm{C}$ may be achieved by performing a $3$% precision measurement of the parity-violating asymmetry at backward angles.
description: 14 pages, 7 figure, 1 table. Matches the published version
Theoretical study of the influence of confinement and channel blocking on adsorption and diffusion of n-butane in silicalite-1
Creators: name: Jagoda-Cwiklik, Barbara
name: Cwiklik, Lukasz
name: Frankowicz, Marek
Publisher: name: arXiv
Year: 2005
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Dynamic Monte Carlo simulations for the open coarse-grained model of MFI type zeolite were used to study the dynamics of adsorption and diffusion of n-butane in silicalite-1. We demonstrated the influence of the confinement of the structure of zeolite channels on both the dynamics of the adsorption process and the maximum loading of adsorbate. We showed that the confinement and channel blocking limit the adsorption and desorption processes. Moreover, they cause the maximum loading in the zeolite structure for moderate pressures to be higher than the one redicted by the Langmuir model for a flat and homogeneous system.
description: Material presented on ISSHAC2004 conference, accepted in Applied Surface Science
Russian ink in a british pen: Anglo-Russian echoes of Ivan Turgenev’s aesthetics in Virginia Woolf’s «The years»
Creators: name: Ciceri, Martina
Publisher: name: ACME
Year: 1970

description: My intention here is to explore the connection between the Garnett family and Stepniak, to call attention to certain aspects of their literary collaboration and to shed light on the offshoots this Anglo-Russian exchange had in modernist fiction, particularly in Virginia Woolf’s prose
description: ACME, Vol 68, No 2 (2015)
«Mama, was sind das, “moderne menschen” »  modernismo e teatro musicale: osservazioni e spunti di riflessione
Creators: name: Turba, Alessandro
Publisher: name: ACME
Year: 1970

description: Fra i tanti aspetti che possono risultare pertinenti a una riconsiderazione del modernismo in campo musicale, lasceremo qui da parte quello più tecnico della riconfigurazione del tempo musicale e dei materiali sonori dopo l’entrata in crisi del sistema tonale per privilegiare, piuttosto, il piano delle idee, degli eterogenei territori del teatro musicale e della multimedialità, più adatti a ripensare una categoria che, nel passato, è stata fin troppo ostaggio di un’ottica formalista incentrata sulla medium specificity
description: ACME, Vol 68, No 2 (2015)
Hyperpolarizabilities for the one-dimensional infinite single-electron periodic systems: II. Dipole-dipole versus current-current correlations
Creators: name: Xu, Minzhong
name: Jiang, Shidong
Publisher: name: arXiv
Year: 2005
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: Atomic Physics (physics.atom-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Based on Takayama-Lin-Liu-Maki model, analytical expressions for the third-harmonic generation, DC Kerr effect, DC-induced second harmonic optical Kerr effect, optical Kerr effect or intensity-dependent index of refraction and DC-electric-field-induced optical rectification are derived under the static current-current($J_0J_0$) correlation for one-dimensional infinite chains. The results of hyperpolarizabilities under $J_0J_0$ correlation are then compared with those obtained using the dipole-dipole ($DD$) correlation. The comparison shows that the conventional $J_0J_0$ correlation, albeit quite successful for the linear case, is incorrect for studying the nonlinear optical properties of periodic systems.
description: 11 pages, 5 figures
Effect of dietary zinc intake on mammary tumorigenesis induced by N-methyl-N-nitrosourea in rats
Creators: name: Woo, Wendy Wai Yee
Publisher: name: University of British Columbia
Year: 2009

description: The overall objective of this study was to investigate the effect of dietary zinc intake on mammary tumorigenesis induced by N-methyl-N-nitrosourea (MNU) in rats. In Experiment 1, twenty-one-day-old female Sprague-Dawley rats were randomly assigned to: severe-low-zinc (lmg zinc/kg diet, Z l ) , marginal-low-zinc (3mg zinc/kg diet, Z3), control (31mg zinc/kg diet, Z31), high-zinc (171mg zinc/kg diet, Z171), very-high-zinc (346mg zinc/kg diet, Z346), pair-fed-to-severe-low-zinc (PZ31-Z1) and pair-fed-to-marginal-lowzinc (PZ31-Z3) groups. On day one of the experiment, each dietary treatment group was further divided into sham- and MNU-treated (50 mg/kg body weight, i.p.) groups (n = 6). After 100 days, the plasma, liver, kidney, heart, lung, muscle, femur, small intestine, skin, normal mammary gland and mammary tumor were removed for zinc determination. Body zinc distribution as indicated by tissue zinc concentrations was mainly affected by dietary zinc intake, but not MNU treatment. MNU-induced mammary tumorigenesis resulted in an accumulation of zinc in mammary tumors. In Experiment 2, twenty-one-day-old female Sprague-Dawley rats were randomly assigned to: marginal-low-zinc (3mg zinc/kg diet, Z3), required-zinc (12mg zinc/kg diet, Z12), control (3lmg zinc/kg diet, Z31), high-zinc (155mg zinc/kg diet, Z155), pair-fed-with-required-zinc-diet (PZ12) and pair-fed-with-control-diet (PZ31) groups. On day one of the experiment, the rats were injected with MNU (40 mg/kg body weight, i.p.). After 28 and 56 days, mammary gland whole mounts were prepared to detect microscopic lesions («=6). The remaining 24 rats were maintained on the assigned diet for 98 days to assess mammary tumorigenesis. Tissue zinc concentrations were also determined and found to be essentially not affected by MNU-induced mammary tumorigenesis. Tumor incidence in Z3 rats was significantly lower than that in Z12, Z31 and Z155 rats (p<0.05) due, at least in part, to the reduced feed intake associated with zinc deficiency. Tumor incidence in Z3 rats was significantly lower than that in PZ12 rats (p<0.05), but was the same as in PZ31 rats. Dietary zinc intake had no effect on the tumor multiplicity, tumor weight and tumor burden during MNU-induced mammary tumorigenesis Overall, these results suggest that dietary zinc intake is critical in modulating palpable MNU induced mammary tumor formation in rats when feed intake is reduced.
Optical Spectroscopy of X-Mega targets in the Carina Nebula - VI. FO 15: a new O-Type double-lined eclipsing binary
Creators: name: Niemela, V. S.
name: Morrell, N. I.
name: Lajus, E. Fernandez
name: Barba, R.
name: Colombo, J. F. Albacete
name: Orellana, M.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report the discovery of a new O-type double-lined spectroscopic binary with a short orbital period of 1.4 days. We find the primary component of this binary, FO 15, to have an approximate spectral type O5.5Vz, i.e. a Zero-Age-Main-Sequence star. The secondary appears to be of spectral type O9.5V. We have performed a numerical model fit to the public ASAS photometry, which shows that FO 15 is also an eclipsing binary. We find an orbital inclination of ~ 80 deg. From a simultaneous light-curve and radial velocity solution we find the masses and radii of the two components to be 30 +/- 1 and 16 +/- 1 solar masses and 7.5 +/- 0.5 and 5.3 +/- 0.5 solar radii. These radii, and hence also the luminosities, are smaller than those of normal O-type stars, but similar to recently born ZAMS O-type stars. The absolute magnitudes derived from our analysis locate FO 15 at the same distance as Eta Carinae. From Chandra and XMM X-ray images we also find that there are two close X-ray sources, one coincident with FO 15 and another one without optical counterpart. This latter seems to be a highly variable source, presumably due to a pre-main-sequence stellar neighbour of FO 15.
description: 11 pages, 9 figures, 3 tables. Accepted for publication in MNRAS. Higher resolution version available at http://lilen.fcaglp.unlp.edu.ar/papers2006.html
A Bayesian approach towards facilitating climate change adaptation research on the South African agricultural sector
Creators: name: Musango, J.K.
name: Peter, C.
name: Musango, J.K.
name: Peter, C.
Publisher: name: Unknown
Year: 2007
Subjects: subject: Environmental Economics and Policy
subject: Climate change adaptation
subject: water utilization
subject: Bayesian approach

description: Evaluating the range of proposed adaptation measures to combat the sensitivity of agriculture to climate change effects involves evaluating complex interactions between human and natural systems. Integrated strategy-making and implementation in the agricultural sector to reduce the risks posed by climate change requires the consideration of multiple, interdisciplinary factors and the sensitivities of their inter-relationships. Lack of information on the sensitivity of agricultural activities to climate change in Africa hampers climate change adaptation research on the region. In water scarce South Africa, the growth of the agricultural sector is threatened by projected decreases in water availability due to climate change. This paper shows how Bayesian networks may be used to facilitate cross-disciplinary participation in elucidating these sensitivities. Bayesian networks provide a graphical framework for mixing quantitative and qualitative information and can be characterised using information associated with varying degrees of uncertainty. This enables a variety of domain experts to test key driver-response interactions through sensitivity analysis and enables visualisation of the complex inter-relationships between inter-disciplinary variables resulting from the impacts of climate change scenarios on South African agriculture. The ability to represent the sensitivities between key variables for which varying degrees of data-scarcity and uncertainty occur provides agricultural sector researchers with a facilitation tool that may helps visualise and formulate climate change mitigation strategies. The results presented here illustrates the extreme sensitivity of water-scarce South African agricultural sector to projected climate change impacts and provides a framework in which tradeoffs between activities can be preliminarily assessed in strategy-making for adaptation.
Agriculture and poverty: Farming for food or farming for money?
Creators: name: Pauw, Kalie
name: Pauw, Kalie
Publisher: name: Unknown
Year: 2007
Subjects: subject: Food Security and Poverty
subject: Agricultural sector
subject: poverty
subject: inequality
subject: household income sources

description: The dualistic nature of the South African economy manifests itself to a large extent in the agricultural sector, where ownership and access to land was previously reserved and is still mainly controlled by white farmers. This has contributed to the huge disparities in the income levels of black and white agricultural households. In this paper two South African household surveys are used to analyse agricultural inequality using various decomposition techniques. It is found that inequalities within agriculture are higher and more pronounced along racial lines than inequalities among non-agricultural households. Agricultural inequalities also differ structurally from those in the rest of society and are explained largely by differences in the ownership of income-generating assets, and less so by racial wage inequalities. Furthermore, an analysis of agricultural poverty reveals extremely high poverty rates and meagre incomes among black subsistence and small-scale farmer households. These results have important implications for the type of transformation required in the South African agricultural sector, adding weight to the notion that commercialisation is crucial if agriculture is to contribute meaningfully to poverty reduction among the rural black community.
Robbea undetermined
Creators: name: Scharhauser, Florian
name: Saavedra, Daniel E. M.
name: Pröts, Philipp
name: Ot, Jörg A.
name: Geier, Benedikt
name: Gruber-Vodicka, Harald R.
name: Polikarpov, Maxim
name: Bourenkov, Gleb
name: Leisch, Nikolaus
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Nematoda
Chromadorea
Desmodorida
Desmodoridae
Robbea
Robbea undetermined

description: Robbea sp. Bermuda
Sampling location: Nonsuch Island; 1 m, medium sand close to Thalassia bed. Coordinates: 32.348079 N, 64.664433 W.
Material: One female specimen in the collection of J.A. Ott.
Description: With the characters of the genus, measurements see Supporting Information, Table S2.
Small (L <6 mm) and stouter than the forgoing species (a <160), cephalic capsule 65% of corpus length, subcephalic setae 64% of cephalic setae, corpus less than 25% of pharynx (Figure 15).
description: Published as part of Scharhauser, Florian, Saavedra, Daniel E. M., Pröts, Philipp, Ot, Jörg A., Geier, Benedikt, Gruber-Vodicka, Harald R., Polikarpov, Maxim, Bourenkov, Gleb & Leisch, Nikolaus, 2025, Revision of the genus Robbea (Stilbonematinae: Desmodoridae), worldwide abundant marine nematodes with chromophoric Fe-Br inclusions and the description of a new stilbonematine genus, pp. 1-28 in Zoological Journal of the Linnean Society 203 (1) on pages 10-11, DOI: 10.1093/zoolinnean/zlae005, http://zenodo.org/record/14850743
Constraints on the two-pion contribution to hadronic vacuum polarization
Creators: name: Colangelo, Gilberto
name: Hoferichter, Martin
name: Stoffer, Peter
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Lattice (hep-lat)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: At low energies hadronic vacuum polarization (HVP) is strongly dominated by two-pion intermediate states, which are responsible for about $70\%$ of the HVP contribution to the anomalous magnetic moment of the muon, $a_μ^\text{HVP}$. Lattice-QCD evaluations of the latter indicate that it might be larger than calculated dispersively on the basis of $e^+e^-\to\text{hadrons}$ data, at a level which would contest the long-standing discrepancy with the $a_μ$ measurement. In this Letter we study to which extent this $2π$ contribution can be modified without, at the same time, producing a conflict elsewhere in low-energy hadron phenomenology. To this end we consider a dispersive representation of the $e^+e^- \to 2π$ process and study the correlations which thereby emerge between $a_μ^\text{HVP}$, the hadronic running of the fine-structure constant, the $P$-wave $ππ$ phase shift, and the charge radius of the pion. Inelastic effects play an important role, despite being constrained by the Eidelman-Lukaszuk bound. We identify scenarios in which $a_μ^\text{HVP}$ can be altered substantially, driven by changes in the phase shift and/or the inelastic contribution, and illustrate the ensuing changes in the $e^+e^-\to 2π$ cross section. In the combined scenario, which minimizes the effect in the cross section, a uniform shift around $4\%$ is required. At the same time both the analytic continuation into the space-like region and the pion charge radius are affected at a level that could be probed in future lattice-QCD calculations.
description: 9 pages, 9 figures; version published in PLB
DeepCSNet: a deep learning method for predicting electron-impact doubly differential ionization cross sections
Creators: name: Wang, Yifan
name: Zhong, Linlin
Publisher: name: arXiv
Year: 2024
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Electron-impact ionization cross sections of atoms and molecules are essential for plasma modelling. However, experimentally determining the absolute cross sections is not easy, and ab initio calculations become computationally prohibitive as molecular complexity increases. Existing AI-based prediction methods suffer from limited data availability and poor generalization. To address these issues, we propose DeepCSNet, a deep learning approach designed to predict electron-impact ionization cross sections using limited training data. We present two configurations of DeepCSNet: one tailored for specific molecules and another for various molecules. Both configurations can typically achieve a relative L2 error less than 5%. The present numerical results, focusing on electron-impact doubly differential ionization cross sections, demonstrate DeepCSNet's generalization ability, predicting cross sections across a wide range of energies and incident angles. Additionally, DeepCSNet shows promising results in predicting cross sections for molecules not included in the training set, even large molecules with more than 10 constituent atoms, highlighting its potential for practical applications.
description: 18 pages, 16 figures, 2 tables
A Comparison of Remineralizing Effect of Resin-modified Glass Ionomer Cement and Resin-modified Calcium Silicate Cement on Demineralized Dentin
Creators: name: Teerakasemsuk, Chosita
Publisher: name: The Dental Association of Thailand
Year: 2022
Subjects: Demineralized dentin
Knoop microhardness
Resin-modified calcium silicate cement
Resin-modified
glass ionomer cement

description: Journal of The Dental Association of Thailand, 72, 1, 012-017
What do we mean when we say casualisation of farm work is rising?: Evidence from fruit farms in the Western Cape
Creators: name: Conradie, Beatrice
name: Conradie, Beatrice
Publisher: name: Unknown
Year: 2007
Subjects: subject: Crop Production/Industries
subject: Labor and Human Capital
subject: Farm labour markets
subject: horticulture
subject: Western Cape

description: Du Toit & Ally's (2003) results on the casualisation of farm work in the Western Cape confirmed the worst fears of sociologists: Globalisation and/or labour laws increased casualisation in agriculture. New labour data and a study conducted in 1976 allow one to revisit the casualisation result for the table grape industry of the Hex River Valley. This paper resolves imprecise definitions of regular versus permanent status, and of casual versus seasonal status. It also examines casualisation and job shedding. Results show a decrease in the share of seasonal work and no change in the casual component of seasonal work. The job status of most farm women in the Valley improved as a result of legislative changes implemented since 1994. Outsourcing is present but insignificant at this point. On the whole data for the table grape industry of the Hex River Valley does not support the hypothesis that globalisation and labour market reform caused dramatic increases in casualisation.
Rank Statistics in Biological Evolution
Creators: name: Ben-Naim, E.
name: Krapivsky, P. L.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Probability (math.PR)
subject: Genomics (q-bio.GN)
subject: FOS: Biological sciences
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We present a statistical analysis of biological evolution processes. Specifically, we study the stochastic replication-mutation-death model where the population of a species may grow or shrink by birth or death, respectively, and additionally, mutations lead to the creation of new species. We rank the various species by the chronological order by which they originate. The average population N_k of the kth species decays algebraically with rank, N_k ~ M^{mu} k^{-mu}, where M is the average total population. The characteristic exponent mu=(alpha-gamma)/(alpha+beta-gamma)$ depends on alpha, beta, and gamma, the replication, mutation, and death rates. Furthermore, the average population P_k of all descendants of the kth species has a universal algebraic behavior, P_k ~ M/k.
description: 4 pages, 3 figures
Effect of Desensitizing Toothpaste Containing Calcium Sodium Phosphosilicate on Microtensile Bond Strength of Adhesive Systems
Creators: name: Sittiwaitayaporn, Warin
Publisher: name: The Dental Association of Thailand
Year: 2022
Subjects: Bonding agents
Calcium sodium phosphosilicate
Desensitizing
toothpaste
Microtensile bond strength
Thermocycling

description: Journal of The Dental Association of Thailand, 72, 1, 018-026