cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Hubble Space Telescope NICMOS Polarization Measurements of OMC-1
Creators: name: Simpson, Janet P.
name: Colgan, Sean W. J.
name: Erickson, Edwin F.
name: Burton, Michael G.
name: Schultz, A. S. B.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present 2micron polarization measurements of positions in the BN region of the Orion Molecular Cloud (OMC-1) made with NICMOS Camera 2 (0.2'' resolution) on HST. Our results are as follows: BN is sim 29% polarized by dichroic absorption and appears to be the illuminating source for most of the nebulosity to its north and up to sim 5'' to its south. Although the stars are probably all polarized by dichroic absorption, there are a number of compact, but non-point-source, objects that could be polarized by a combination of both dichroic absorption and local scattering of star light. We identify several candidate YSOs, including an approximately edge-on bipolar YSO 8.7'' east of BN, and a deeply-embedded variable star. Additional strongly polarized sources are IRc2-B, IRc2-D, and IRc7, all of which are obviously self-luminous at mid-infrared wavelengths and may be YSOs. None of these is a reflection nebula illuminated by a star located near radio source I, as was previously suggested. Other IRc sources are clearly reflection nebulae: IRc3 appears to be illuminated by IRc2-B or a combination of the IRc2 sources, and IRc4 and IRc5 appear to be illuminated by an unseen star in the vicinity of radio source I, or by Star n or IRc2-A. Trends in the magnetic field direction are inferred from the polarization of the 26 stars that are bright enough to be seen as NICMOS point sources. The most polarized star has a polarization position angle different from its neighbors by sim 40^o, but in agreement with the grain alignment inferred from millimeter polarization measurements of the cold dust cloud in the southern part of OMC-1.
description: 41 pages, 8 figures, 4 tables, to appear in The Astrophysical Journal
Understanding and developing locality with a non-representational approach: Cases of waterfront spaces along the river Rhine
Creators: name: Ruan, Huiting
name: Prominski, Martin
Publisher: name: New York, NY [u.a.] : Wiley
Year: 2021
Subjects: subject: design guidelines
subject: locality
subject: non-representational theory
subject: Rhine River
subject: waterfront space
subject: Konferenzschrift
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie
subject: Dewey Decimal Classification::600 | Technik::690 | Hausbau, Bauhandwerk

description: In response to the problem of urban uniformity and loss of identity, in the past, locality research focused mainly on the physical environment and their symbolic values. This study takes the initiative by applying the zero theory from human geography to the planning and design fields. It has investigated promenades and parks along the Rhine in 20 towns or cities using spatial analysis and on-site experiences. Four types of waterfront space have been identified from the case studies, and the pattern of their distribution along the Rhine suggests that this is influenced mainly by the varying characteristics of the river and the historical development of the towns. This result permits planning to refer to spatial layout based on a region's character. The research also reveals the dominance of representational thinking in our current design practice and its negative impact. The application of non-representational approaches reveals the importance of sensory experiences and everyday spaces for better on-site engagement, thus forming the basis for a set of design guidelines for achieving locality in river-related open spaces. The paper demonstrates that the non-representational theory could provide the opportunity to enliven the connection between people and places in locality research.
The Participation of the Poor in Supermarket-driven chains in Vietnam
Creators: name: Moustier, Paule
name: Figue, Muriel
name: Anh, Dao The
name: Tam, Phan Thi Giac
name: Binh, Vu Trong
name: Tan Loc, Nguyen Thi
name: Moustier, Paule
name: Figue, Muriel
name: Anh, Dao The
name: Tam, Phan Thi Giac
name: Binh, Vu Trong
name: Tan Loc, Nguyen Thi
Publisher: name: Unknown
Year: 2007
Subjects: Agribusiness

description: In Vietnam, the marketing of fruits and vegetables is characterized by a diversity of distribution chains that includes formal markets, street vendors, shops and supermarkets. Presently, the government is promoting the expansion of supermarket distribution and eliminating all informal trade. The study investigates the hypothesis that due to the use of labor-saving and capital intensive technologies employed by supermarkets, poorer segments of the population may be excluded from potential benefits. Surveys of poor consumers' access to different retailing points were made in Hanoi and Ho Chi Minh City. Case studies built around vegetable, lychee and flavored rice chains based on in-depth interviews with representative samples of stakeholders along the chains investigated poor farmers' and traders' participation in distribution value chains. Markets and street vendors are still the dominant forces in food distribution when measured by absolute quantities sold and number of people employed. Street vending and markets generate substantially more employment by volume of business than supermarkets, especially for the poor. They are also the main points of sale for the poor consumers, who rarely purchase in supermarkets, because of price and distance constraints. Poor farmers have no direct access to supermarkets because of the requirements in terms of safety (for vegetables), quantities and conditions of delivery (for all products). Yet they can be indirect suppliers of supermarkets through belonging to (or contracting with) farmers' associations that are involved in quality development and control through training and credit programs. Policy recommendations aimed at maintaining the diversity of retail trade are finally made.
SOCIOECONOMIC AND INSTITUTIONAL DETERMINERS OF DURABLE TECHNOLOGICAL INNOVATIONS IN THE FOOD-PRODUCING AGRICULTURE OF CAMEROON
Creators: name: Temple, Ludovic
name: Kwa, Moise
name: Bikoi, Achile
name: Temple, Ludovic
name: Kwa, Moise
name: Bikoi, Achile
Publisher: name: Unknown
Year: 2007
Subjects: subject: Research and Development/Tech Change/Emerging Technologies
subject: innovation
subject: food crops
subject: Cameroon
subject: sustainable development
subject: plantain

description: The challenges posed by food security for populations in sub-Saharan Africa and the fact that extensive production systems are reaching their limits in food-producing agriculture imply accelerating technological innovation toward ecological intensification of agricultural production systems. A review of research on plantain banana in Cameroon since 1988 revealed how institutional innovation enabled hybridization of different forms of research (fundamental, systems, and action research) and reinforced the organizational innovation required for technical change. Evaluation of impacts underlined the complementarity between an increase in productivity and in income in rural areas, the production of human and social capital and the protection of forest resources.
Use of household food insecurity scales for assessing poverty in Bangladesh and Uganda.
Creators: name: Alcaraz V., Gabriela
name: Zeller, Manfred
name: Alcaraz V., Gabriela
name: Zeller, Manfred
Publisher: name: Unknown
Year: 2007
Subjects: Food Consumption/Nutrition/Food Safety
Food Security and Poverty

description: An important dimension of poverty is access to food. Household food security implies access to the food needed for a healthy and productive life. Lack of access to and/or impaired utilization of food contribute to household food insecurity. This study compares the utility of a standardized food security scale for determining the food insecurity status of rural and urban households in Bangladesh and Uganda and for predicting poverty status. The analysis uses data from the IRIS Composite Survey Household Questionnaire (2004), which consists of 1,587 households (approximately 800 households in each country). The coping mechanisms adopted in the presence of food shortage represent the building blocks for development of the scale (7 items). In order to assess the suitability of the scale as an estimator of the households poverty status, the benchmark indicator "daily expenditures per capita" and its relation to the corresponding poverty line serves as the basis for evaluation on each country. The scale provides the means for classifying the households into 3 main groups: Non Food Insecure, Moderately Food Insecure, and Severely Food Insecure. The reliability of the scale is measured via the Cronbach's Alpha statistic. In addition, the scale is used in regression analysis in order to predict per capita daily expenditures and the poverty incidence. The results show that food insecurity does not always reflect (income) poverty. However, the use of the scale as predictor of poverty status produces rough estimates of poverty incidence that could be useful as background information. The differentiation of households according to their food security status may be valuable for focusing and developing improved food insecurity mitigation strategies.
Topological phase transition driven by magnetic field and topological Hall effect in an antiferromagnetic skyrmion lattice
Creators: name: Tomé, M.
name: Rosales, H. D.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The topological Hall effect (THE), given by a composite of electric and topologically non-trivial spin texture is commonly observed in magnetic skyrmion crystals. Here we present a study of the THE of electrons coupled to antiferromagnetic Skyrmion lattices (AF-SkX). We show that, in the strong Hund coupling limit, topologically non-trivial phases emerge at specific fillings. Interestingly, at low filling an external field controlling the magnetic texture, drives the system from a conventional insulator phase to a phase exhibiting THE. Such behavior suggests the occurrence of a topological transition which is confirmed by a closing of the bulk-gap that is followed by its reopening, appearing simultaneously with a single pair of helical edge states. This transition is further verified by the calculation of the the Chern numbers and Berry curvature. We also compute a variety of observables in order to quantify the THE, namely: Hall conductivity and the orbital magnetization of electrons moving in the AF-SkX texture.
description: 6 pages, 5 figures
A not so golden age: Decolonising the Amsterdam Museum
Creators: name: Rossi, Roberto
Publisher: name: ECHO
Year: 2020
Subjects: New Narratives; postcolonial studies; heritage; Golden Age; tropology

description: One of the contemporary uses of postcolonial studies in public spaces is to reconsider the narratives that lead visitors through history and art museums. With the transformation of the democratic citizenships from national elites into multiethnic polyphonies, museums have changed their audience. So, some categories and tropes inherited by nationalist and positivist historiographies became old – and often discriminative for some visitors. Indeed, these representations still reflect the colonial perspective of the ancient hegemonic groups. The expression Gouden Eeuw [Golden Age] – referred to the 17th Century Dutch Republic – may be included in these categories. For this reason, in 2019 the Amsterdam Museum decided to delete the phrase from the labels of its collections. With this paper, I will provide a bibliographical framework about the choice of the Amsterdam Museum, through the quotations of its directors, its conservators, and their theoretical references. Then, I will look at other cases of New Narratives strategies, which the Dutch Museums theorized in the last years with a postcolonial aim. Finally, I will evaluate whether this reference for the expression Gouden Eeuw has colonialist implications.
description: ECHO, N. 2 (2020): Semiosi della colonialità e dinamiche culturali al tempo della mobilità globale
Tunnelling conductance of $d+ip$-wave superconductor
Creators: name: Takabatake, Yuhi
name: Suzuki, Shu-Ichiro
name: Tanaka, Yukio
Publisher: name: arXiv
Year: 2020
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We theoretically investigate the tunneling conductance of the $d+ip$-wave superconductor which is recently proposed to be realised at the (110) surface of a high-$T_c$ cuprate superconductor. Utilizing the quasiclassical Eilenberger theory, we obtain the self-consistent pair potentials and the differential conductance of the normal-metal/$d+ip$-wave superconductor junction. We demonstrate that the zero-bias peak of a $d$-wave superconductor is robust against the spin-triplet $p$-wave surface subdominant order even though it is fragile against the spin-singlet $s$-wave one. Comparing our numerical results and the experimental results, we conclude the spin-triplet $p$-wave surface subdominant order is feasible.
description: 8 pages, 9 figures
L’Afrofuturismo e la crisi dell’umanesimo: prospettive recenti, visioni attuali e linguaggi futuri in Kodwo Eshun, John Akomfrah e nella musica techno
Creators: name: Attimonelli, Claudia
Publisher: name: ECHO
Year: 2020
Subjects: afrofuturism; techno; Kodwo Eshun; John Akomfrah; sampling; cutting

description: The essay outlines the origins of Afrofuturism, comparing the philosophical and musical theories of one of its founders, Kodwo Eshun, with the languages that best express the aesthetics, the perspectives and the diasporic nature of Afrofuturism. First of all, the artistic work by director John Akomfrah, and secondarily the essential contribution of techno music as the emblem of hybridization between past and future through the black rhythms extrapolated from electronic machines in the deindustrialized city of Detroit at the end of the Nineties. Starting from the matrix it is possible to see through the significance of the afrofuturist mainstream wave of the recent years, taking into account the contemporary crisis of western humanism, which risks colonizing afrofuturism and to translate it into a new exoticism.
description: ECHO, N. 2 (2020): Semiosi della colonialità e dinamiche culturali al tempo della mobilità globale
Infrared Extinction by Aggregates of SiC Particles
Creators: name: Andersen, Anja C.
name: Mutschke, Harald
name: Posch, Thomas
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Particle shape and aggregation have a strong influence on the spectral profiles of infrared phonon bands of solid dust grains. In this paper, we use a discrete dipole approximation, a cluster-of-spheres code following the Gerardy-Ausloos approach and a T-matrix method for calculating IR extinction spectra of aggregates of spherical silicon carbide (SiC) particles. We compare the results obtained with the three different methods and discuss differences in the band profiles.
Stoquasticity in circuit QED
Creators: name: Ciani, Alessandro
name: Terhal, Barbara M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We analyze whether circuit-QED Hamiltonians are stoquastic focusing on systems of coupled flux qubits: we show that scalable sign-problem free path integral Monte Carlo simulations can typically be performed for such systems. Despite this, we corroborate the recent finding [arXiv:1903.06139] that an effective, non-stoquastic qubit Hamiltonian can emerge in a system of capacitively coupled flux qubits. We find that if the capacitive coupling is sufficiently small, this non-stoquasticity of the effective qubit Hamiltonian can be avoided if we perform a canonical transformation prior to projecting onto an effective qubit Hamiltonian. Our results shed light on the power of circuit-QED Hamiltonians for the use of quantum adiabatic computation and the subtlety of finding a representation which cures the sign problem in these systems
The relationship between farm size and productivity: empirical evidence from the Nepalese mid-hills
Creators: name: Thapa, Sridhar
name: Thapa, Sridhar
Publisher: name: Unknown
Year: 2007
Subjects: subject: Farm Management
subject: inverse relationship
subject: farm size
subject: productivity
subject: returns to scale
subject: Nepal
subject: Q15
subject: O13

description: This paper examines the farm size and productivity relationship using data from Nepalese mid hills. The household data used has been drawn from a survey conducted by the author and financed by the Norwegian University of Life Science. The analysis uses models both allowing for and not allowing for village dummies(as cluster controls), the ratio of irrigated land (as proxy for land quality), and other socio-economic variables such as households, belonging to caste groups, and family size (as proxy for access to resources). The result supported the almost 'stylized fact' of inverse relationship (IR) between farm size and output per hectare. Total cash input use and labour hours per hectare were found to be higher on small farms. The findings of regression equations allowing for village dummies and other socio-economic variables do not support the explanation that the IR between farm size and productivity is due to variation in regions as well as access to resources. Nevertheless, family size and caste dummies show some effects on farm value added. The paper further investigates returns to scale in Nepalese agriculture, applying the Cobb-Douglas (CD) production function. The result shows constant returns to scale. Labour input seems more influential in farm production, followed by manure, in the sample farms. The overall result shows that the IR between farm size and output per hectare is perhaps due to the result more of other inputs used by small farms rather than diseconomies of scale.
“Je suis venu vivre l’experience de la haute technologie et de la mondialisation”: reflexions autour de Congo inc. Le testament de Bismarck d’In Koli Jean Bofane
Creators: name: Modenesi, Marco
Publisher: name: ECHO
Year: 2020
Subjects: Bofane; DRCongo; globalization; African novel; francophonie; Bofane; RDCongo; mondialisation; roman africain; francophonie

description: Congo Inc., second novel by the Congolese writer In Koli Jean Bofane, focuses on the wide world of globalization in Congo. By following the young pygmy Isookanga, who has a true vocation as a mondialiste (globalizer), Bofane highlights the effects of globalization on the DR Congo and the link that ties it to the legacy of colonialism and to post-colonialism. Congo Inc., deuxième roman du congolais In Koli Jean Bofane se focalise sur le vaste univers de la mondialisation au Congo. En suivant le jeune pygmée Isookanga qui a une véritable vocation de mondialiste, Bofane met en relief les effets de la mondialisation sur la RD Congo en relevant aussi le lien qui la rattache à l’héritage du colonialisme et au post-colonialisme.
description: ECHO, N. 2 (2020): Semiosi della colonialità e dinamiche culturali al tempo della mobilità globale
Sastre, Alfonso (2013). Squadra verso la morte. Edizione, studio e traduzione di Enrico Di Pastena. Pisa: Edizioni ETS, pp. 262
Creators: name: Orazi, Veronica
Publisher: name: Università Ca’ Foscari Venezia, Italia
Year: 2015

description:

description: Rassegna iberistica
title: Constituent-elite relationships and their implications for modern democracies
Creators: name: Seimel, Armin
Publisher: name: University of Glasgow
Year: 2023

description: Political elites interact with their constituents in various ways. Our understanding of elite communication, elite-provided policy options, and elite-shaped national democracies can be constrained by commonly used methodological tools. Using new methodological approaches or newly available data, this dissertation presents three new perspectives on the relationship between political elites and how they influence the opinions of their constituents.
First, in the context of the European refugee crisis, I examine how the announcement of the Balkan route closure affected public perceptions of the crisis’s severity. Using an Unexpected Event During Survey Design, I depart from the typically used survey experimental approach to assess the effect of this political communication and identify the causal effect of the announcement in a real-world setting. I find that political communication has a short-lived positive effect on citizens’ perceptions of the crisis. Furthermore, my study serves as a template for future research aiming to post-factually identify the effect of political communication in real-world settings.
Second, I propose a novel conceptualisation of polarisation that associates the available policy alternatives within a political system with the preferences of individual citizens. This enables an examination of the impact of polarisation at the individual level. Utilising the same sample of respondents, I demonstrate that polarisation can simultaneously diminish citizen support for democratic governance and augment their level of engagement. These findings indicate that polarisation possesses a dual nature, which contradicts the recently proposed negative implications of polarisation for democracy.
Third, I use newly available data that captures perceptions of the European Union at the macro level to test how the national democratic standards shaped by political elites affect attitudes towards the EU. My findings show that the benchmark process by which EU citizens compare their national conditions with those of the EU only partially applies to democratic standards. People in new member countries compare the EU to their national standards, and higher national standards mean less EU support. However, the EU’s growing reputation as a democratic policing body balances out the negative differences that member nations draw between their national and EU democracies the longer they are members. Ultimately, long-term members are more supportive of the EU the higher their level of democratic standards.
Observation of String Breaking in QCD
Creators: name: SESAM Collaboration
name: Bali, Gunnar S.
name: Neff, Hartmut
name: Duessel, Thomas
name: Lippert, Thomas
name: Schilling, Klaus
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We numerically investigate the transition of the static quark-antiquark string into a static-light meson-antimeson system. Improving noise reduction techniques, we are able to resolve the signature of string breaking dynamics for n_f=2 lattice QCD at zero temperature. This result can be related to properties of quarkonium systems. We also study short-distance interactions between two static-light mesons.
description: 27 pages, 22 figures, changed decimal place of errors in 3 entries of Table, corrected references
Supply and Value Chain Analysis in the Marketing of Marine Dried Fish in Bangladesh and Non Tariff Measures (NTMs) in International Trading
Creators: name: Shamsuddoha, Md
name: Shamsuddoha, Md
Publisher: name: Unknown
Year: 2007
Subjects: International Relations/Trade

description: In Bangladesh 7.3 million people live in the coastal fishing villages whose livelihood someway depends on marine fishing. About 20 percent of total marine catch dried round the year and marketed both in domestic and international market. In the supply chain of marine dried fish marketing four intermediary stakeholders are involved between producers and consumers. Besides, involvement of backward stakeholders with the primary producer is considerably high that results 22 percent value addition to raw fish. The value addition is found highest 105 percent from wholesaler to retailer, followed by 90 percent from wholesaler to exporter. In long supply chain profitability is not as high as the value added. In contrary both the profit maximization and profit distribution are considerably higher in a short supply chain. Supermarket secure as high as 150 percent profit. In all cases, primary producers secure less profit, only 5 to 8 percent whereas their involvement in terms of labor, time etc. is the highest. The major cause of price exploitation is dadan (non institutional money lending) that make producers bound to go for 'conditional engagement' in fish drying business. In relation to dry fish export, the increasing non-tariff measures (NTMs) acts as critical barrier despite having huge international market demand. The WTO SPS and TBT agreements impose a bound obligation to the exporting member countries to improve food quality as per set international standard, but the compliance cost related to SPS obligation is too high, and the government is reluctant, otherwise unable to meet the set criteria. The study recommends appropriate policy intervention for financing dry fish producers and to strengthen domestic technical regulations to overcome technical barriers to dry fish trading in international market.
Dall’inspired by Africa al made in Africa: l’afro-couture vista da occidente
Creators: name: Chiais, Eleonora
name: Maida, Lorenzo
Publisher: name: ECHO
Year: 2020
Subjects: afro-style; afro-coutur; Made in Africa; Inspired by Africa; fashion studies

description: Vestimentary choices are vehicles of identity because they create (and influence) the mechanisms of self-representation. When such choices acquire a global dimension, both the will to represent (intentio autoris) and the will to represent oneself (intentio lectoris) take on a central role in the daily discourse of fashion by drawing from the wardrobe of an "other" culture. The case of the so-called “African Fashion" is illustrative in this sense and allows us to question the concepts of "colonialism" and "coloniality" by observing how, over the years, the two terms have been central in generating both a western perception and a western esthetic of Afro-couture.
description: ECHO, N. 2 (2020): Semiosi della colonialità e dinamiche culturali al tempo della mobilità globale
Mitigating the impact of El Nino-related drought on smallholder farmers in Central Sulawesi, Indonesia: An interdisciplinary modelling approach combining linear programming with stochastic simulation
Creators: name: Keil, Alwin
name: Teufel, Nils
name: Gunawan, Dodo
name: Leemhuis, Constanze
name: Keil, Alwin
name: Teufel, Nils
name: Gunawan, Dodo
name: Leemhuis, Constanze
Publisher: name: Unknown
Year: 2007
Subjects: subject: Farm Management
subject: ENSO
subject: risk management
subject: linear programming
subject: stochastic simulation
subject: Indonesia

description: Crop production in the tropics is subject to considerable climate variability caused by the El Niño-Southern Oscillation (ENSO) phenomenon. In Southeast Asia, El Niño causes comparatively dry conditions leading to substantial declines of crop yields with severe consequences for the welfare of local farm households. Using a modelling approach that combines regression analysis with linear programming and stochastic simulation, and integrates climatic and hydrologic modelling results, the objective of this paper is to assess the impact of El Niño on agricultural incomes of smallholder farmers in Central Sulawesi, Indonesia, and to identify suitable crop management strategies to mitigate the income depressions. The results contribute to the formulation of enhanced development policies and provide guidance for future research activities. Based on resource endowment and location within the mountainous research area, we identify five farm classes by cluster analysis. Our linear programming model maximizes their cash balance at the end of the period most severely affected by El Niño. Main activities are the cultivation of rice, maize, and cocoa, for which external Cobb-Douglas production functions are estimated that include water supply as an input factor; they generate output according to level of production intensity as well as predicted weather patterns. Stochastic simulation is used to account for variations in crop yields due to factors not captured by the production functions. Iterative model runs produce probability distributions of the model outcomes for each household class, whereby the downside risk of failing to achieve a specified minimum level of income is particularly insightful. The results illustrate that drought-related crop management recommendations must be tailored to farm households according to their location, farming system, and resource endowment.
Hermann, Rudolf: Studien zur Theologie Luthers und des Luthertums
Creators: name: Lohse, Bernhard
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 31 Nr. 4 (1982): Ökumenische Rundschau, Band 31, Heft 4
Improved limits for violations of local position invariance from atomic clock comparisons
Creators: name: Lange, R.
name: Huntemann, N.
name: Rahm, J. M.
name: Sanner, C.
name: Shao, H.
name: Lipphardt, B.
name: Tamm, Chr.
name: Weyers, S.
name: Peik, E.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We compare two optical clocks based on the $^2$S$_{1/2}(F=0)\to {}^2$D$_{3/2}(F=2)$ electric quadrupole (E2) and the $^2$S$_{1/2}(F=0)\to {}^2$F$_{7/2}(F=3)$ electric octupole (E3) transition of $^{171}$Yb$^{+}$ and measure the frequency ratio $ν_{\mathrm{E3}}/ν_{\mathrm{E2}}=0.932\,829\,404\,530\,965\,376(32)$. We determine the transition frequency $ν_{E3}=642\,121\,496\,772\,645.10(8)$ Hz using two caesium fountain clocks. Repeated measurements of both quantities over several years are analyzed for potential violations of local position invariance. We improve by factors of about 20 and 2 the limits for fractional temporal variations of the fine structure constant $α$ to $1.0(1.1)\times10^{-18}/\mathrm{yr}$ and of the proton-to-electron mass ratio $μ$ to $-8(36)\times10^{-18}/\mathrm{yr}$. Using the annual variation of the Sun's gravitational potential at Earth $Φ$, we improve limits for a potential coupling of both constants to gravity, $(c^2/α) (dα/dΦ)=14(11)\times 10^{-9}$ and $(c^2/μ) (dμ/dΦ)=7(45)\times 10^{-8}$.
description: 6 pages, 3 figures
La politica migratoria dell’U.E. e la depersonalizzazione dei migranti: una strategia consapevole?
Creators: name: Gallotta, Giulia Maria
Publisher: name: ECHO
Year: 2020
Subjects: Unione Europea; crisi; migranti; depersonalizzazione; inclusione sociale; European Union; crisis; migration; depersonalization; social inclusion.

description: The essay takes as its starting point a brief survey of the different meanings of the concept of crisis in the history of political doctrines and of the European Union for an evaluation of its use, as far as recent landings of migrants on European coasts are concerned. The fact that in scientific research the plight of migrants is not considered as a crisis in itself but rather as the signal of a real crisis in related policy areas leads to a broadening of analysis to EU documents on migration and asylum. It emerges that EU institutions are undertaking a gradual but inexorable process of depersonalization of migrants, that is the slow cancellation of their identity and individuality. This is achieved through the progressive tightening of the criteria for the recognition of refugee status or of the international protection regime in the EU. This is even more evident if we compare modifications in EU definitions of "refugee" with those of socially-excluded people formulated by the EU Commission in the period 1985-1995. What emerges is that hesitancy to apply the notion of crisis with regard to migrants can be the flip side of the evolution of EU norms on the subject, i.e. the depersonalization of migrants could be functional in avoiding questions being raised about the compatibility of their rejection with the values of solidarity the EU declares itself to be founded on.
description: ECHO, N. 2 (2020): Semiosi della colonialità e dinamiche culturali al tempo della mobilità globale
Greco, Barbara (2015). La musa bifronte di José Agustín Goytisolo. Alessandria: Edizioni dell’Orso, pp. XII-156. Studi e Ricerche, 130
Creators: name: Orazi, Veronica
Publisher: name: Università Ca’ Foscari Venezia, Italia
Year: 2015

description:

description: Rassegna iberistica
The SDSS Damped Lya Survey: Data Release 3
Creators: name: Prochaska, Jason X.
name: Herbert-Fort, Stephane
name: Wolfe, Arthur M.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the results from a damped Lya survey of the Sloan Digital Sky Survey, Data Release 3 based on over 500 new damped Lya systems at z>2.2. We measure the HI column density distribution f(N) and its zeroth and first moments (the incidence l(X) and gas mass-density O_dla of damped Lya systems, respectively) as a function of redshift. The key results include: (1) the f(N) distribution is well fit by a Gamma-function with `break' column density log N_g=10^21.5 and `faint-end' slope alpha=-1.8; (2) the shape of the f(N) distributions do not show evolution with redshift; (3) l(X) and O_dla decrease by 35% and 50% during ~1Gyr between redshift z=[3.,3.5] to z=[2.2,2.5]; and (4) l(X) and O_dla in the lowest SDSS redshift bin (z=2.2) are consistent with the current values. We investigate systematic errors in damped Lya analysis and identify only one important effect: we measure 40 +/- 20% higher O_dla values toward a subset of brighter quasars than toward a faint subset. This effect runs contrary to the bias associated with dust obscuration and suggests that gravitational lensing may be important. Comparing the results against models of galaxy formation, we find all of the models significantly underpredict l(X) at z=3 and only SPH models with significant feedback may reproduce O_dla at high redshift. We argue that the Lyman limit systems contribute ~1/3 of the universe's HI atoms at all redshifts z=2 to 5 and that the f(N) distribution for N(HI)<10^20 has an inflection with slope >-1. We advocate a new mass density definition -- the mass density of predominantly neutral gas O_neut -- to be contrasted with the mass density of gas associated with HI atoms. We contend the damped Lya systems contribute >80% of O_neut at all redshifts and therefore are the main reservoirs for star formation. [abridged]
description: 24 pages, 22 figures. Accepted to ApJ, August 15, 2005
Piqueras, Juan Vicente (2013). Atenas. Madrid: Visor, pp. 70
Creators: name: Mistrorigo, Alessandro
Publisher: name: Università Ca’ Foscari Venezia, Italia
Year: 2015

description:

description: Rassegna iberistica
Identification of proteins that interact with the N-terminal domain of the androgen receptor
Creators: name: Quayle, Alandra Nola
Publisher: name: University of British Columbia
Year: 2009

description: The androgen receptor (AR) plays an essential role in the proliferation of prostate cells, so the progression of prostate cancer to the incurable androgen independent (AI) state likely involves alterations in the regulation of AR-mediated gene transcription. One possible route to AI progression is through changes in the activity of coregulator proteins, which interact with AR to contribute further control and specificity to the process of transcriptional regulation. A variety of affinity assays was used to try and identify AR-specific coregulator proteins through their ability to bind to unique sequences in the AR N-terminal domain. Detection of calreticulin (a known AR-binding protein) following GST-pulldown with AR-GST fusion proteins from LNCaP cells (a human prostate cancer cell line), proved that this method was able to selectively pull down human proteins that interact with AR. GST-pulldown with the N-terminal domain of AR identified two LNCaP nuclear proteins of approximately 40 kDa and 70 kDa and a yeast protein of about 70 kDa that specifically interacted with the N-terminal domain, relative to other regions of AR. Yeast proteins of about 32 kDa, 45 kDa, and 55 kDa that appeared to interact uniquely with the N-terminal domain of AR were co-immunoprecipitated with fragments of the AR N-terminal domain expressed in yeast cells. Further characterization of these protein bands was complicated by high levels of non-specific background associated with these techniques. The yeast 2-hybrid system was used to screen a human prostate cDNA library, utilizing the first 232 amino acids of the N-terminal domain of human AR as bait. A positive clone, ARBP1, was identified with very strong sequence homology to a known human protein, RanBPM, that was previously shown to be involved in microtubule nucleation. Hybridization of an ARBP1 cDNA probe to multiple tissue expression blots showed that the expression of this gene was much higher in testis tissue than in other human tissues. In the future, the interaction between AR and the approximately 70 kDa protein expressed by the ARBP1 clone can be confirmed using GST-pulldown or co-immunoprecipitation. Elucidating the role of ARBP1 in AR function will provide an excellent focus for future experiments.
title: Emerging Powers and Global Governance
title: Αναδυόμενες Δυνάμεις και Παγκόσμια Διακυβέρνηση
Creators: name: Sotirios, Petropoulos
Publisher: name: Kallipos, Open Academic Editions
Year: 2024
Subjects: Αναδυόμενες Δυνάμεις
Emerging Powers
Παγκόσμια Διακυβέρνηση
Global Governance
OHE
UN
ΠΟΕ
WTO
Παγκόσμια Τράπεζα
World Bank
ΔΝΤ
IMF
BRICS
Διεθνείς Σχέσεις
International Relations
Διεθνής Οικονομία
International Economy

description: The book examines recent developments on the international political and economic scene in the context of the emergence of new states such as Brazil, India and China. It focuses on the ways in which a number of developing states have managed to significantly strengthen their positions on the global stage, leading to a de facto reorganization of the system of global governance. It focuses on the economic and political choices made by these states in recent decades and how the global environment has favoured their emergence. At the same time, it studies the functioning and especially the decision-making within a range of global governance institutions such as the UN, the WTO, the IMF, the World Bank as well as the G-7 and the more recent G-20. It covers the reasons why emerging powers have emerged as major actors in the global system in the current period, the role of economic crises on the international scene, the regional choices of these states and their outcomes, and the ways in which international organisations and institutions are being transformed by this new phenomenon.
description: Το βιβλίο εξετάζει τις πρόσφατες εξελίξεις στη διεθνή πολιτική και οικονομική σκηνή στο πλαίσιο της ανάδυσης νέων κρατών όπως η Βραζιλία, η Ινδία και η Κίνα. Επικεντρώνεται στους τρόπους με τους οποίους μια σειρά από αναπτυσσόμενα κράτη έχουν κατορθώσει να ισχυροποιήσουν σημαντικά τις θέσεις τους στο παγκόσμιο σκηνικό οδηγώντας σε μια de facto αναδιοργάνωση του συστήματος παγκόσμιας διακυβέρνησης. Γίνεται εστίαση στις οικονομικές και πολιτικές επιλογές των κρατών αυτών κατά τις τελευταίες δεκαετίες, καθώς και στο πώς το παγκόσμιο περιβάλλον ευνόησε την ανάδυσή τους. Παράλληλα, μελετώνται ο τρόπος λειτουργίας και ειδικά ο τρόπος λήψης αποφάσεων εντός μιας σειράς θεσμών παγκόσμιας διακυβέρνησης όπως ο ΟΗΕ, ο ΠΟΕ το ΔΝΤ, η Παγκόσμια Τράπεζα αλλά και το G-7 και το πιο πρόσφατο G-20. Στο βιβλίο καλύπτονται, επίσης, οι λόγοι για τους οποίους κατά την τρέχουσα περίοδο οι αναδυόμενες δυνάμεις έχουν αναδειχθεί σε σημαντικούς δρώντες του παγκόσμιου συστήματος, ο ρόλος των οικονομικών κρίσεων στη διεθνή σκηνή, οι περιφερειακές επιλογές των εν λόγω κρατών και τα αποτελέσματα αυτών, καθώς και οι τρόποι με τους οποίους μετασχηματίζονται διεθνείς οργανισμοί και θεσμοί λόγω του νέου φαινομένου.
De Toro, Alfonso; Ceballos, René (eds.) (2014). Frida Kahlo ‘revisitada’. Estrategias transmediales –  transculturales – transpicturales. Hildesheim; Zürich; New York: Georg Olms Verlag, pp. 193
Creators: name: Pittarello, Elide
Publisher: name: Università Ca’ Foscari Venezia, Italia
Year: 2015

description:

description: Rassegna iberistica
Can supply chain's coordination mechanisms include small holders? Insight from an empirical work in Costa Rica.
Creators: name: Faure, Guy
name: D'Hotel, Elodie Maitre
name: Le Coq, Jean-Francois
name: Saenz, Fernando
name: Faure, Guy
name: D'Hotel, Elodie Maitre
name: Le Coq, Jean-Francois
name: Saenz, Fernando
Publisher: name: Unknown
Year: 2007
Subjects: subject: Agribusiness
subject: supply chain
subject: small holders
subject: farmers
subject: contracting
subject: coordination
subject: Costa Rica

description: Small holders' agriculture is currently facing new stakes due to State's withdrawal from agricultural support and to higher market requests for producing agricultural products. Different coordination mechanisms can be observed inside the supply chains involving farmers, farmers' organizations, and others stakeholders. They depend on the nature of the product, the characteristics of the stakeholders involved, the technical specifications related to the transactions, and the institutional environment. Relying on a comparative case study methodology, the paper analyzes the consequences of different coordination mechanisms on inclusion or exclusion of small farmers in the northern region of Costa Rica. Market coordination could be an efficient way to integrate farmers in supply chains in the case of low technical specifications and of existence of adequate selling mechanisms. Hybrid coordination is the main mechanism and facilitates the inclusion of small farmers, depending on the farmers' organizations capacities to negotiate adequate rules. In some situations hybrid coordination with captive relationships could occur but leads to a more or less rapid exclusion process.
De Toro, Alfonso (ed.) (2013). Translatio. Transmedialité et transculturalité en littérature, peinture, photographie et au cinéma. Amériques-Caraïbes-Europe-Maghreb. Paris: L’Harmattan, pp. 353
Creators: name: Pittarello, Elide
Publisher: name: Università Ca’ Foscari Venezia, Italia
Year: 2015

description:

description: Rassegna iberistica
Discovery of Localized Regions of Excess 10-TeV Cosmic Rays
Creators: name: Abdo, A. A.
name: Allen, B.
name: Aune, T.
name: Berley, D.
name: Blaufuss, E.
name: Casanova, S.
name: Chen, C.
name: Dingus, B. L.
name: Ellsworth, R. W.
name: Fleysher, L.
name: Fleysher, R.
name: Gonzales, M. M.
name: Goodman, J. A.
name: Hoffman, C. M.
name: Hüntemeyer, P. H.
name: Kolterman, B. E.
name: Lansdell, C. P.
name: Linnemann, J. T.
name: McEnery, J. E.
name: Mincer, A. I.
name: Nemethy, P.
name: Noyes, D.
name: Pretz, J.
name: Ryan, J. M.
name: Parkinson, P. M. Saz
name: Shoup, A.
name: Sinnis, G.
name: Smith, A. J.
name: Sullivan, G. W.
name: Vasileiou, V.
name: Walker, G. P.
name: Williams, D. A.
name: Yodh, G. B.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: An analysis of 7 years of Milagro data performed on a 10-degree angular scale has found two localized regions of excess of unknown origin with greater than 12 sigma significance. Both regions are inconsistent with gamma-ray emission with high confidence. One of the regions has a different energy spectrum than the isotropic cosmic-ray flux at a level of 4.6 sigma, and it is consistent with hard spectrum protons with an exponential cutoff, with the most significant excess at ~10 TeV. Potential causes of these excesses are explored, but no compelling explanations are found.
description: Submitted to PhysRevLett
Transesophageal Echocardiography Generation using Anatomical Models
Creators: name: Oladokun, Emmanuel
name: Abdulkareem, Musa
name: Šprem, Jurica
name: Grau, Vicente
Publisher: name: arXiv
Year: 2024
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Through automation, deep learning (DL) can enhance the analysis of transesophageal echocardiography (TEE) images. However, DL methods require large amounts of high-quality data to produce accurate results, which is difficult to satisfy. Data augmentation is commonly used to tackle this issue. In this work, we develop a pipeline to generate synthetic TEE images and corresponding semantic labels. The proposed data generation pipeline expands on an existing pipeline that generates synthetic transthoracic echocardiography images by transforming slices from anatomical models into synthetic images. We also demonstrate that such images can improve DL network performance through a left-ventricle semantic segmentation task. For the pipeline's unpaired image-to-image (I2I) translation section, we explore two generative methods: CycleGAN and contrastive unpaired translation. Next, we evaluate the synthetic images quantitatively using the Fréchet Inception Distance (FID) Score and qualitatively through a human perception quiz involving expert cardiologists and the average researcher.
 In this study, we achieve a dice score improvement of up to 10% when we augment datasets with our synthetic images. Furthermore, we compare established methods of assessing unpaired I2I translation and observe a disagreement when evaluating the synthetic images. Finally, we see which metric better predicts the generated data's efficacy when used for data augmentation.
description: MICCAI2023; DALI Workshop
Dairy Farming as a Business: A Review of the Financial Position of Thirty-seven Dairy Farms for the Year Ended 30th June, 1946
Creators: name: Gruen, Fred H.G.
name: Gruen, Fred H.G.
Publisher: name: Unknown
Year: 1948
Subjects: Livestock Production/Industries

description: In the April, 1947, issue of this "Review" an appraisal of the financial position of thirty-two dairy farms in New South Wales during 1944-45 was made by Wyn. F. Owen.* The purpose of this article is to publish similar information regarding the financial position of thirty-seven dairy farms in New South Vales during 1945-46. The tables prepared for this article are of a similar nature to those of the previous article, but little attempt will be made to compare the results of the different years as it is considered more desirable to wait at least another year and obtain some more data before comparing figures for different years.
Ground and thermal states for the Klein-Gordon field on a massless hyperbolic black hole with applications to the anti-Hawking effect
Creators: name: Campos, Lissa de Souza
name: Dappiaggi, Claudio
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: On an $n$-dimensional, massless, topological black hole with hyperbolic sections, we construct the two-point function both of a ground state and of a thermal state for a real, massive, free scalar field arbitrarily coupled to scalar curvature and endowed with Robin boundary conditions at conformal infinity. These states are used to compute the response of an Unruh-DeWitt detector coupled to them for an infinite proper time interval along static trajectories. As an application, we focus on the massless conformally coupled case and we show, numerically, that the anti-Hawking effect, which is manifest on the three-dimensional case, does not occur if we consider a four-dimensional massless hyperbolic black hole. On the one hand, we argue that this result is compatible with what happens in the three- and four dimensional Minkowski spacetime, while, on the other hand, we stress that it generalizes existing results concerning the anti-Hawking effect on black hole spacetimes.
description: 15 figures, 27 pages, typos corrected