cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Synthesis and characterisation of bifunctional MRI contrast agents
Creators: name: O'Connell, Patrick J.
Publisher: name: The Open University
Year: 2009

description: Macrocyclic ligands based on cyclen form lanthanide complexes with good thermodynamic stability and kinetic inertness due to the large degree of preorganization of the ligand. Conversely, it is these favourable properties which have impeded their development as magnetopharmaceudcals as the functionalization of cyclen remains synthetically challenging. This thesis describes the development of new synthetic routes to substituted cyclen ligands, which after complexation with Gd(III), could have potential as MRI contrast agents.

At present, cyclen is primarily functionalized by alkylation with halide substrates. In an attempt to prepare bifunctional ligands, cyclen was alkylated with derivatised amino acids. Elimination of the halide substrate to give the corresponding alkene was found to be a significant problem using this approach.

As an alternative route to functionalized macrocycles, the Michael addition of cyclen to activated alkenes was investigated. The aza-Michael addition of cyclen to acrylamide was found to be regioselective with the tri-amide substituted cyclen (D03PAM) being the major product. Hydrolysis of D03PAM with 12M HCl gave the corresponding tri-acid substituted cyclen (D03P) in a yield of 90 %. D03P is an analogue of the important cyclen ligand, D03A, which has three acetate substituents. Trifluoromethanesulfonic acid was found to catalyse the conjugate addition of mono-N-Z-cyclen to methyl-2-acetamidoacrylate under mild conditions. This methodology of mono-Z-protecrion followed by acid-catalysed addition and deprotection offers a new and versatile route to tri-N-substituted cyclen derivatives. The addition of cyclen to ethyl-cis-B-cyanoacrylate was regioselective as addition occurred exclusively at the carbon B to the nitrile group.

The ligands D03P and D03PAM were complexed with gadolinium(III) and the T1 spin-lattice relaxation times of the complexes were measured. The corresponding T1-relaxivity values (r1) of Gd(D03P) and Gd(D03PAM) were determined to be 4.0 and 4.6 mM-1s-1 (60 MHz, 25 °C), respectively. These complexes provide significantly better relaxivity values than that of the best-selling MRI contrast agent, Magnevist (Gd-DPTA), which has an value of 2.8mM-1s-1 (60 MHz, 25 °C).
Probing model-independent limits on $W^+W^-γ$ triple gauge boson vertex at the LHeC and the FCC-he
Creators: name: Gutiérrez-Rodríguez, A.
name: Köksal, M.
name: Billur, A. A.
name: Hernández-Ruíz, M. A.
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the cross-section of production of a single $W^-$ boson in association with a neutrino through the process $e^-p \to e^-γ^*p \to ν_eW^- p$. Additionally, we obtain the anomalous couplings $Δκ_γ$ and $λ_γ$ of the $W^+W^-γ$ vertex at the Large Hadron Electron Collider (LHeC) and the Future Circular Collider Hadron-Electron (FCC-he). The impact of the polarized beam due to the electron is also analyzed. Our best limits for $Δκ_γ$ and $λ_γ$ at the $95\%$ C.L. are: $Δκ_γ= \pm 0.0017$, $λ_γ= \pm 0.0053$ (unpolarized electron beam) and $Δκ_γ= \pm 0.0013$, $λ_γ= \pm 0.0046$ (polarized electron beam) identifying the $W^-$ boson through the hadronic decay channel. In addition, the $e^-γ^* \to ν_eW^-$ collision is one of the clean, pure and simple process to investigate the $W^+W^-γ$ coupling without the complications of QCD backgrounds.
description: 23 pages, 10 figures and 4 tables
Solar XUV and ENA-driven water loss from early Venus' steam atmosphere
Creators: name: Lichtenegger, H. I. M.
name: Kislyakova, K. G.
name: Odert, P.
name: Erkaev, N. V.
name: Lammer, H.
name: Gröller, H.
name: Johnstone, C. P.
name: Elkins-Tanton, L.
name: Tu, L.
name: Güdel, M.
name: Holmström, M.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The influence of the hydrogen hydrodynamic upper atmosphere escape, driven by the solar soft X-ray and extreme ultraviolet radiation (XUV) flux, on an expected magma ocean outgassed steam atmosphere of early Venus is studied. By assuming that the young Sun was either a weak or moderate active young G star, we estimated the water loss from a hydrogen dominated thermosphere due to the absorption of the solar XUV flux and the precipitation of solar wind produced energetic hydrogen atoms (ENAs). The production of ENAs and their interaction with the hydrodynamic extended upper atmosphere, including collision-related feedback processes, have been calculated by means of Monte Carlo models. ENAs that collide in the upper atmosphere deposit their energy and heat the surrounding gas mainly above the main XUV energy deposition layer. It is shown that precipitating ENAs modify the thermal structure of the upper atmosphere, but the enhancement of the thermal escape rates caused by these energetic hydrogen atoms is negligible. Our results also indicate that the majority of oxygen arising from dissociated H$_2$O molecules is left behind during the first 100 Myr. It is thus suggested that the main part of the remaining oxygen has been absorbed by crustal oxidation.
description: 6 figures and 2 tables
The square root of the Dirac operator on the superspace and the Maxwell equations
Creators: name: Bzdak, Adam
name: Hadasz, Leszek
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We re-consider the procedure of ``taking a square root of the Dirac equation'' on the superspace and show that it leads to the well known superfield W_αand to the proper equations of motion for the components, i.e. the Maxwell equations and the massless Dirac equation.
description: 6 pages, Latex, to appear in Physics Letters B
SERAD: Soft Error Resilient Asynchronous Design using a Bundled Data Protocol
Creators: name: Aketi, Sai Aparna
name: Gupta, Smriti
name: Cheng, Huimei
name: Mekie, Joycee
name: Beerel, Peter A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Hardware Architecture (cs.AR)
subject: FOS: Computer and information sciences

description: The risk of soft errors due to radiation continues to be a significant challenge for engineers trying to build systems that can handle harsh environments. Building systems that are Radiation Hardened by Design (RHBD) is the preferred approach, but existing techniques are expensive in terms of performance, power, and/or area. This paper introduces a novel soft-error resilient asynchronous bundled-data design template, SERAD, which uses a combination of temporal and spatial redundancy to mitigate Single Event Transients (SETs) and upsets (SEUs). SERAD uses Error Detecting Logic (EDL) to detect SETs at the inputs of sequential elements and correct them via re-sampling. Because SERAD only pays the delay penalty in the presence of an SET, which rarely occurs, its average performance is comparable to the baseline synchronous design. We tested the SERAD design using a combination of Spice and Verilog simulations and evaluated its impact on area, frequency, and power on an open-core MIPS-like processor using a NCSU 45nm cell library. Our post-synthesis results show that the SERAD design consumes less than half of the area of the Triple Modular Redundancy (TMR), exhibits significantly less performance degradation than Glitch Filtering (GF), and consumes no more total power than the baseline unhardened design.
SU(N) Gauge Theories Near $T_c$
Creators: name: Lucini, B.
name: Teper, M.
name: Wenger, U.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We study the deconfinement phase transition in SU(N) gauge theories for $N$=2,3,4,6,8. The transition is first order for $N \ge 3$, with the strength increasing as $N$ increases. We extrapolate $T_c/\sqrtσ$ to the continuum limit for each $N$, and observe a rapid approach to the large $N$ limit. As $N$ increases the phase transition becomes clear-cut on smaller spatial volumes, indicating the absence of (non-singular) finite volume corrections at $N=\infty$ -- reminiscent of large $N$ reduction. The observed rapid increase of the inter-phase surface tension with $N$ may indicate that for $N=\infty$ the deconfinement transition cannot, in practise, occur.
description: Lattice2003(nonzero)
Additional file 1 of Global cross-sectional student survey on AI in medical, dental, and veterinary education and practice at 192 faculties
Creators: name: Busch, Felix
name: Hoffmann, Lena
name: Truhn, Daniel
name: Ortiz-Prado, Esteban
name: Makowski, Marcus R.
name: Bressem, Keno K.
name: Adams, Lisa C.
Publisher: name: figshare
Year: 2024
Subjects: subject: Medicine
subject: Pharmacology
subject: Biotechnology
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Science Policy

description: Supplementary Material 1.
TAPIR - Ready to ROR! Nachnutzung von Metadaten aus Datacite Commons
Creators: name: Schnieders, Kathrin
name: Mierz, Sandra
Publisher: name: Zenodo
Year: 2021
Subjects: datacite
vivo
pid

description: Auf dem KIM Workshop 2021 stellt das Projekt TAPIR (Verbundvorhaben zwischen der TIB Hannover und der Universität Osnabrück) in einem Lightning Talk sein erstes Import-Tool datacitecommons2vivo vor, welches Daten aus datacite commons PID-Graph in eine lokale VIVO Instanz lädt. Die Daten liefern eine erste Grundlage zur weiteren Verarbeitung für das teil-automatisierte Persistent Identifier-basierte Reporting für universitäre und außeruniversitäre Forschungseinrichtungen.
description: Diese Arbeit ist im Projekt TAPIR entstanden. TAPIR wird unter den Förderkennzeichen 01PH20001A und 01PH20001B in der Förderlinie "Qualitätsentwicklungen in der Wissenschaft (Meso-Ebene)" teilweise durch das BMBF gefördert.
title: Resistance to selective serotonin reuptake inhibitors: role of serotonergic mechanisms
Creators: name: Calcagno, Eleonora
Publisher: name: The Open University
Year: 2009

description: SSRIs are the mainstay in the treatment of depression. However, approximately 30% of depressed patients do not respond to antidepressants and the causes of resistance to these drugs are largely unknown. Thus, it is necessary to develop experimental models to investigate the neurobiological changes underlying the response to SSRIs. The approach used in this project was the inter-strain comparison of mice, such as DBA/2 and C57BL/6, differing in serotonin (5-HT) synthesis, due to a spontaneous mutation of tryptophan hydroxylase-2, the rate-limiting enzyme in brain 5-HT synthesis. The genotype-dependent deficit of 5-HT was associated with no response to acute and chronic citalopram and paroxetine in the forced swimming test (FST), an experimental procedure to assess the antidepressant potential of drugs, and with lower basal and citalopram-induced rise of extracellular 5-HT. The administration of the 5-HT precursor, tryptophan, or the blockade 5-HT1A autoreceptors and 5-HT2C receptor-mediated inhibitory feedback reinstated the antidepressant-like effect of citalopram. These findings suggest that boosting 5-HT neurotransmission might be a useful strategy to restore the antidepressant effect in treatment-resistant depressed patients. Further studies suggested that GABAergic inhibition is involved in the mechanism by which 5-HT2C receptor inactivation augments the effects of SSRIs whereas the ability of tryptophan to restore the antidepressant-like effect of SSRIs may involve non-serotonergic mechanisms. Finally, chronic citalopram induced opposite changes in brain-derived neurotrophic factor (BDNF), a neurotrophin linked to the long-term action of antidepressants, in the nucleus accumbens of DBA/2 and C57BL/6 mice. This suggests a possible role of this protein in the lack of response to SSRIs. Overall, these studies provide new insight into the role of 5-HT and BDNF in the response to antidepressant drugs and remark on the inter-strain comparison of mice with a spontaneous tryptophan hydroxylase-2 mutation as a useful tool for understanding the mechanism underlying the response to SSRIs and testing new potential therapeutic strategies.
Navegantes das inquietações a respeito das formas possíveis de habitarmos o mundo que nos cerca
Creators: name: Martins, Marcos
Publisher: name: Cadernos de Arte Pública
Year: 2024

description: Apresentando-se na paisagem, como natureza presentificada em terra, corpo-abrigo vestido de poesia, suspendido por escoras que equivalem a palafitas das memórias, mar debruçante de pés desnudos, flutuante de miras mar das frestas dos ventos que assobiam no horizonte em reconstrução, aportando nos desejos as inquietudes das formas possíveis de habitarmos no mundo Imantado, a natureza do corpo e do mundo. Barcos suspensos nas estruturas das memórias esquecidas, corpo-mar flutuante nas frestas do silêncio. Abrigo poético que quiçá deseja visibilizar as presenças humanas e suas trajetórias. Possibilitando gestar as travessias dos saberes e das escutas nos territórios das ausências e silêncios, para a consciência regenerativa do natural e dos humanos. Barcos como casas que se navegam com os olhos, com os desejos das consciências solitárias que desejam existir.
description: Cadernos de Arte Pública, Vol 6 No 1 (2024): Transatlantic Dialogs
A larger value for $H_0$ by an evolving gravitational constant
Creators: name: Braglia, Matteo
name: Ballardini, Mario
name: Emond, William T.
name: Finelli, Fabio
name: Gumrukcuoglu, A. Emir
name: Koyama, Kazuya
name: Paoletti, Daniela
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We provide further evidence that a massless cosmological scalar field with a non-minimal coupling to the Ricci curvature of the type $M^2_{\rm pl}(1+ξσ^n/M_{\rm pl}^n) $ alleviates the existing tension between local measurements of the Hubble constant and its inference from CMB anisotropies and baryonic acoustic oscillations data in presence of a cosmological constant. In these models, the expansion history is modified compared to $Λ$CDM at early time, mimicking a change in the effective number of relativistic species, and gravity weakens after matter-radiation equality. Compared to $Λ$CDM, a quadratic ($n=2$) coupling increases the Hubble constant when {\em Planck} 2018 (alone or in combination with BAO and SH0ES) measurements data are used in the analysis. Negative values of the coupling, for which the scalar field decreases, seem favored and consistency with Solar System can be naturally achieved for a large portion of the parameter space without the need of any screening mechanism. We show that our results are robust to the choice of $n$, also presenting the analysis for $n=4$.
description: 11 pages, 4 figures, 3 tables; v2 references added, minor changes, accepted for publication in PRD
Exact Single-Source SimRank Computation on Large Graphs
Creators: name: Wang, Hanzhi
name: Wei, Zhewei
name: Yuan, Ye
name: Du, Xiaoyong
name: Wen, Ji-Rong
Publisher: name: arXiv
Year: 2020
Subjects: subject: Data Structures and Algorithms (cs.DS)
subject: FOS: Computer and information sciences

description: SimRank is a popular measurement for evaluating the node-to-node similarities based on the graph topology. In recent years, single-source and top-$k$ SimRank queries have received increasing attention due to their applications in web mining, social network analysis, and spam detection. However, a fundamental obstacle in studying SimRank has been the lack of ground truths. The only exact algorithm, Power Method, is computationally infeasible on graphs with more than $10^6$ nodes. Consequently, no existing work has evaluated the actual trade-offs between query time and accuracy on large real-world graphs. In this paper, we present ExactSim, the first algorithm that computes the exact single-source and top-$k$ SimRank results on large graphs. With high probability, this algorithm produces ground truths with a rigorous theoretical guarantee. We conduct extensive experiments on real-world datasets to demonstrate the efficiency of ExactSim. The results show that ExactSim provides the ground truth for any single-source SimRank query with a precision up to 7 decimal places within a reasonable query time.
description: ACM SIGMOD 2020
Impact of increasing prices of agricultural commodities on poverty
Creators: name: Karfakis, Panagiotis
name: Velazco, Jackeline
name: Moreno, Esteban
name: Covarrubias, Katia
name: Karfakis, Panagiotis
name: Velazco, Jackeline
name: Moreno, Esteban
name: Covarrubias, Katia
Publisher: name: Unknown
Year: 2011
Subjects: Food Security and Poverty
Agricultural Finance

description: The present paper attempts to identify the groups of households that most likely will facepositive or negative welfare consequences as a result of food price increases. Using data from household surveys and differentiating urban from rural areas as well as food buyers from food sellers, the analysis presents preliminary evidence, showing that when the short run effects on consumption are considered, household welfare is expected to decrease, threatening initiallyfood security. Real benefits are expected to occur for selected household groups, as soon as some second round effects, that transform the production structure, are considered. Marketparticipation is critical for small land holders to capitalize potential benefits. Irregular wageearners may also gain from the price increases as long as expansion of the food producingsectors takes place in the parts of the developing countries that agriculture is the dominant source of income. Nevertheless it cannot be neglected that appropriation of the benefits, requires sufficient transmission of the price increases to the farm gate. On the other hand, and unless substantive action is taken, urban poverty is expected to increase given that almost uniformly, populations in such areas are net buyers of food.
description: FAO Document Repository: http://www.fao.org/3/a-am320e.pdf
Additional file 2 of Global cross-sectional student survey on AI in medical, dental, and veterinary education and practice at 192 faculties
Creators: name: Busch, Felix
name: Hoffmann, Lena
name: Truhn, Daniel
name: Ortiz-Prado, Esteban
name: Makowski, Marcus R.
name: Bressem, Keno K.
name: Adams, Lisa C.
Publisher: name: figshare
Year: 2024
Subjects: subject: Medicine
subject: Pharmacology
subject: Biotechnology
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Science Policy

description: Supplementary Material 2.
Secure V2V and V2I Communication in Intelligent Transportation using Cloudlets
Creators: name: Gupta, Maanak
name: Benson, James
name: Patwa, Farhan
name: Sandhu, Ravi
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: Intelligent Transportation System (ITS) is a vision which offers safe, secure and smart travel experience to drivers. This futuristic plan aims to enable vehicles, roadside transportation infrastructures, pedestrian smart-phones and other devices to communicate with one another to provide safety and convenience services. Vehicle to Vehicle (V2V) and Vehicle to Infrastructure (V2I) communication in ITS offers ability to exchange speed, heading angle, position and other environment related conditions amongst vehicles and with surrounding smart infrastructures. In this intelligent setup, vehicles and users communicate and exchange data with random untrusted entities (like vehicles, smart traffic lights or pedestrians) whom they don't know or have met before. The concerns of location privacy and secure communication further deter the adoption of this smarter and safe transportation. In this paper, we present a secure and trusted V2V and V2I communication approach using edge infrastructures where instead of direct peer to peer communication, we introduce trusted cloudlets to authorize, check and verify the authenticity, integrity and ensure anonymity of messages exchanged in the system. Moving vehicles or road side infrastructure are dynamically connected to nearby cloudlets, where security policies can be implemented to sanitize or stop fake messages and prevent rogue vehicles to exchange messages with other vehicles. We also present a formal attribute-based model for V2V and V2I communication, called AB-ITS, along with proof of concept implementation of the proposed solution in AWS IoT platform. This cloudlet supported architecture complements direct V2V or V2I communication, and serves important use cases such as accident or ice-threat warning and other safety applications. Performance metrics of our proposed architecture are also discussed and compared with existing ITS technologies.
Arte Contemporânea Caiçara
Creators: name: Barreto, Márcio
Publisher: name: Cadernos de Arte Pública
Year: 2024

description: Com o objetivo de caracterizar o pensamento que envolve a arte contemporânea caiçara, neste artigo abordo seu surgimento e desenvolvimento na Baixada Santista, SP, no período de 2008 a 2024, através do Imaginário Coletivo de Arte e seu campo de atuação cultural e artístico, discutindo seus impactos no campo simbólico (Bourdieu, 2003), da região e as novas configurações culturais advindas de seu surgimento, cujos processos criativos pautam-se na ressignificação de signos identitários, na reconstrução de memórias coletivas e no uso da multilinguagem artística, fornecendo uma produção de saberes e fazeres capaz de alterar a percepção de si e do outro, no sentido de resgatar o que nos torna únicos, enquanto identidade coletiva, em meio a pasteurização de culturas hegemônicas.
description: Cadernos de Arte Pública, Vol 6 No 1 (2024): Transatlantic Dialogs
Extremal Kerr white holes as a source of ultra high energy particles
Creators: name: Patil, Mandar
name: Harada, Tomohiro
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider a process where two identical massive particles fall inwards, starting from rest at infinity towards the extremal Kerr black hole, collide outside the event horizon in its vicinity and produce two massless particles. The center of mass energy of collision between the two particles diverges if one of the particle admits a specific critical value of the angular momentum and if the collision takes place at a location arbitrarily close to the event horizon. Assuming the isotropic emission of particles in the center of mass frame we show that one of the massless particles produced has divergent conserved energy comparable to the center of mass energy with probability slightly less than half. This particle enters the black hole event horizon which coincides with the Cauchy horizon, turns back, and emerges through the white hole event horizon into another asymptotic region in the maximal extension of Kerr spacetime. Since conserved energy is preserved in this process, it is perceived as a particle with divergent energy by the observer when it reaches infinity. Thus the extremal white hole appears to be a source of ultra high energy particles. Similar processes wherein collision takes place slightly inside the black hole event horizon or just outside or inside of white hole event horizon also produce high energy particles.
description: 21 pages, 4 figures, a paragraph on the near extremal case added in the concluding section, accepted for publication in Phys. Rev. D
Additional file 1 of Long COVID is not the same for everyone: a hierarchical cluster analysis of Long COVID symptoms 9 and 12 months after SARS-CoV-2 test
Creators: name: Moniz, Marta
name: Ruivinho, Carolina
name: Goes, Ana Rita
name: Soares, Patrícia
name: Leite, Andreia
Publisher: name: figshare
Year: 2024
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Science Policy

description: Supplementary Material 1.
Grades of Hogs Slaughtered in the United States, September 1960 through August 1961
Creators: name: Gaarder, Raymond O.
name: Engelman, Gerald
name: Kimbrell, Eddie F.
name: Gaarder, Raymond O.
name: Engelman, Gerald
name: Kimbrell, Eddie F.
Publisher: name: Unknown
Year: 1962
Subjects: subject: Livestock Production/Industries
subject: Marketing
subject: FOS: Economics and business
subject: Research Methods/ Statistical Methods

description: Excerpts from the report: During World War II, farmers' cash receipts for hogs accounted for nearly half of their receipts for all meat animals. By 1959, this proportion had been reduced to just over one-fourth. Hogs are still an important source of income to farmers, but their importance may continue to decline unless farmers produce more meat-type and fewer lard-type hogs than they are now doing. Information on the proportion of market hogs in the different grades has been fragmentary and conjectural, and no estimates of known reliability have previously been made for any wide area. Accurate estimates of the proportion of butcher hogs coming to market in each of the grades will help provide a benchmark from which progress in improving hog quality can be measured. In this study, a randomly selected sample of packing plants was visited by a hog grading specialist. The grader spent at least 2 full days at each plant, 1 or 2 days in the fall or winter of 1960-61 and 1 or 2 days 6 months later. He graded a sample of each plant's hog carcasses as they moved by him on the killing line, just before they went into the cooler. The grader measured and graded every second, third, fourth, fifth, or sixth carcass passing him, depending upon rail speed. During this one-year survey, about 45,000 barrow or gilt carcasses and about 6,000 sow carcasses were measured and graded.
Uma Flor da Vida Para o Recordar
Creators: name: Nunes, Diogo
Publisher: name: CAP - Cadernos de Arte Pública / Public Art Journal
Year: 2024

description: Uma Flor da Vida Para o Recordar’ é um projeto artístico que resultou numa obra de arte que ficará instalada em permanência na Assembleia da Républica Portuguesa.

Procurando uma abordagem consciente em relação ao seu lugar de implementação, considera de forma crítica as obras artísticas presentes no edifício no contexto do Pós-Colonialismo Português, especialmente o mural do pintor Domingos Rebelo, que mostra o “descobridor” Vasco da Gama a ser recebido pelos “emissários” de Samorim.

Esta, faz o upcycling através da arte de sete modelos de cinzeiros cerâmicos cedidos pelo Parlamento português após deixarem de servir a sua função de ofertas institucionais. Para isto propomos o conceito de object-specific como ideia orientadora para subverter o papel anterior dos cinzeiros como lugares do apagar, do descartar e do esquecer de histórias normalmente ignoradas sob o sistema de sedução que envolve a comudidade capitalista. A fim de contrariar ontologias do capitaloceno, procurou-se desvendar um vislumbre do seu Kainos no Rizhoma representando momentos históricos da relação da sociedade ocidental com o tabaco através da primeira pintura cerâmica que representa uma folha de tabaco, momentos cruciais na sua disseminação na cultura e mercados ocidentais assim como os seus impactos socio-ambientais atuais.

Finalmente será partilhado brevemente o processo de aprovisionamento para e produção do projeto. Esta contou com a elaboração quer de uma estrutura em perfis de plástico reciclado na mesma zona metropolitana da sua produção quer a pintura pós-vidrado dos cinzeiros.
description: CAP - Cadernos de Arte Pública / Public Art Journal, Vol 6 No 1 (2024): Transatlantic Dialogs
Gender inequality, risk and vulnerability in the rural economy. Refocusing the public works agenda to take account of economic and social risks
Creators: name: Holmes, Rebecca
name: Jones, Nicola
name: Holmes, Rebecca
name: Jones, Nicola
Publisher: name: Unknown
Year: 2011
Subjects: Agricultural and Food Policy
Food Security and Poverty

description: Smallholder farmers and poor rural households are vulnerable to both economic and socialshocks which hamper their participation in agricultural activities. Well-designed social protection programmes can help to reduce both the risk and vulnerability by building resilience to shocks and stresses. Although the gender-specific challenges of women's largely unequal involvement in agricultural activities are generally well-articulated, social protection policy and programming havenot adequately recognised the gendered experiences of poverty and vulnerability and the extent towhich gender inequality affects both social protection programme design and outcomes. To maximisethe linkages between social protection and agricultural growth, and to improve the effectiveness ofboth for reducing poverty and improving food security, it is imperative that gender-sensitive measures are integrated into policy and programme design and implementation. In this paper we focus on a subset of social protection programmes - public works schemes - which aim to tackle rural poverty andfood insecurity and/or promote agricultural productivity. We use two case studies of large public works programmes, i.e. the Productive Safety Net Programme (PSNP) in Ethiopia and the National Rural Employment Guarantee Scheme (NREGS) in India, to analyse the extent to which genderspecific risks and vulnerabilities are considered in programme design and implementation. Both programmes aim to support agricultural productivity and rural livelihoods through creating community agricultural assets and infrastructure and improving incomes for poor households. Our analysis revealed a number of important lessons which can be used to inform policy dialogues on public worksinitiatives in other contexts as well as highlighting some key policy areas in the design and implementation of public works programmes which can support a more positive impact on genderequality and public works programme effectiveness.
description: FAO Document Repository: http://www.fao.org/3/a-am318e.pdf
Additional file 3 of Long COVID is not the same for everyone: a hierarchical cluster analysis of Long COVID symptoms 9 and 12 months after SARS-CoV-2 test
Creators: name: Moniz, Marta
name: Ruivinho, Carolina
name: Goes, Ana Rita
name: Soares, Patrícia
name: Leite, Andreia
Publisher: name: figshare
Year: 2024
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Science Policy

description: Supplementary Material 3.
Gender differences in assets
Creators: name: Raney, Terri
name: Anríquez, Gustavo
name: Croppenstedt, André
name: Gerosa, Stefano
name: Lowder, Sarah K.
name: Matuschke, Ira
name: Skoet, Jakob
name: Raney, Terri
name: Anríquez, Gustavo
name: Croppenstedt, André
name: Gerosa, Stefano
name: Lowder, Sarah K.
name: Matuschke, Ira
name: Skoet, Jakob
Publisher: name: Unknown
Year: 2011
Subjects: Agricultural and Food Policy
Labor and Human Capital
Agricultural Finance
Farm Management

description: Agriculture can be an important engine of growth and poverty reduction. But the sector is underperforming in many countries in part because women, who are often a crucial resource in agriculture and the rural economy, face constraints that reduce their productivity. In this paper we document the gender gap in access to and ownership of most inputs, asset and services important for agricultural activities. We focus in particular on education, land, livestock, financial services, modern inputs, information and extension and labour. Across assets and inputs women are disadvantaged. The gap in education has narrowed over the last decades but substantial gaps remain in sub-Saharan Africa and South Asia. For land, the key farm household asset, there are significant gender differences in access to land across regions. Moreover female-headed households also typically operate smaller land holdings than male-headed households, across regions. There are also significant and systematic gender differences with regard to livestock, financial services, modern inputs, information and extension and labour. Gender differences in assets are generally interlinked, for example when female farmers have lower levels of technology this is due to their having less access to land, less access to labour and less access to extension services, not their sex. This also helps explain why women farmers do not necessarily benefit from access to extension services, as some studies have found. The implication of this is that selective interventions are unlikely to be effective.
description: FAO Document Repository: http://www.fao.org/3/a-am317e.pdf
A review of empirical evidence on gender differences in non-land agricultural inputs, technology, and services in developing countries
Creators: name: Peterman, Amber
name: Behrman, Julia
name: Quisumbing, Agnes
name: Peterman, Amber
name: Behrman, Julia
name: Quisumbing, Agnes
Publisher: name: Unknown
Year: 2011
Subjects: Agricultural and Food Policy
Food Security and Poverty

description: This paper reviews existing microeconomic empirical literature on gender differences in use, access, and adoption of non-land agricultural inputs in developing countries. This review focuses on four key areas: (1) technological resources, (2) natural resources, (3) human resources, and (4) social and political capital. In general, there has been more empirical research on inorganic fertilizer, seed varieties, extension services, and group membership than on tools and mechanization, life-cycle effects, and political participation. Across input areas, generally men have higher input measures than women; however, this finding is often sensitive to the use of models that control for other background factors, as well as the type of gender indicator implemented in the analysis. We find few studies that meet our inclusion criteria outside Sub-Saharan Africa. Finally, future directions, opportunities, and recommendations for microeconomic gender analysis of non-land agricultural inputs are discussed.
description: FAO Document Repository: http://www.fao.org/3/a-am316e.pdf
Classical chaos with Bose-Einstein condensates in tilted optical lattices
Creators: name: Thommen, Quentin
name: Garreau, Jean Claude
name: Zehnlé, Véronique
Publisher: name: arXiv
Year: 2003
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: A widely accepted definition of ``quantum chaos'' is ``the behavior of a quantum system whose \emph{classical} \emph{limit is chaotic}''. The dynamics of quantum-chaotic systems is nevertheless very different from that of their classical counterparts. A fundamental reason for that is the linearity of Schr{ö}dinger equation. In this paper, we study the quantum dynamics of an ultra-cold quantum degenerate gas in a tilted optical lattice and show that it displays features very close to \emph{classical} chaos. We show that its phase space is organized according to the Kolmogorov-Arnold-Moser theorem.
description: 4 pages, 3 figures
Intra-household bargaining, gender roles in agriculture and how to promote welfare enhancing changes
Creators: name: Seebens, Holger
name: Seebens, Holger
Publisher: name: Unknown
Year: 2011
Subjects: Agricultural and Food Policy
Food Security and Poverty

description: This paper investigates the meaning of female empowerment and presents the argument why empowerment is needed. Empowerment is treated as a process which does not stop with empowerment per se, but also looks at what is eventually done with the increased agency. The paper finds that women are generally more constrained than men with regard to access to productive resources such as land, credit or information. Women also face inequalities in the labour market. These inequalities come at a cost to women and other household members. Female empowerment is particular beneficial for children's health, nutrition and education. The paper finds that gender inequalities are widespread and that it is important to consider women's multiple roles as mothers, wives, farmers, entrepreneurs and agents in political life. Moreover the paper presents experiences with, and empirical evidence of, empowerment and its potential effects. Although empowerment can yield positive effects for other household members this result is not automatic but depends on the economic and social environment and the incentive structure which help determine women's achievements. As yet there is no comprehensive theory of all these factors making project planning and policy design difficult.
description: FAO Document Repository: http://www.fao.org/3/a-am315e.pdf
Flux Noise in MgB2 Thin Films
Creators: name: Festin, Orjan
name: Svedlindh, Peter
name: Kang, W. N.
name: Choi, Eun-Mi
name: Lee, Sung-Ik
Publisher: name: arXiv
Year: 2003
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We have performed flux noise and AC-susceptibility measurements on two 400 nm thick MgB$_2$ films. Both measurement techniques give information about the vortex dynamics in the sample, and hence the superconducting transition, and can be linked to each other through the fluctuation-dissipation-theorem. The transition widths for the two films are 0.3 and 0.8 K, respectively, and the transitions show a multi step-like behavior in the AC-susceptibility measurements. The same phenomenon is observed in the flux noise measurements through a change in the frequency dependence of the spectral density at each step in the transition. The results are discussed and interpreted in terms of vortices carrying an arbitrary fraction of a flux quantum as well as in terms of different macroscopic regions in the films having slightly different compositions, and hence, different critical temperatures.
description: 8 pages, 4 figures, conference contribution to "Fluctuations and Noise", Santa Fe, New mexico 1-4 june 2003
Inspiriting human ecology/home economics and everyday life : telling my story
Creators: name: MacIsaac, Karen Lynn
Publisher: name: The University of British Columbia
Year: 2023

description: This paper is an examination of the concept of inspiriting and what it means for home economics curriculum and pedagogy. It uses interpretive methodology which encompasses selfstudy narrative inquiry and storytelling to show how personal experiences can be awakened and make us conscious of our lived experiences in education. They allow us to question common practices. I identify three concepts related to inspiriting, wide awakeness, consciousness and mindfulness and apply these to three stories to consider inspiriting home economics, curriculum and pedagogy. Finally I elaborate the transformation both personally and professionally that takes place when attending to the spirit in home economics education.
Polaronic Aspects of the two-dimensional Ferromagnetic Kondo Model
Creators: name: Daghofer, M.
name: Koller, W.
name: Evertz, H. G.
name: von der Linden, W.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The 2D ferromagnetic Kondo model with classical corespins is studied for a hole doping up to x = 0.125 via unbiased Monte Carlo (MC) simulations. A canonical algorithm for finite temperatures is developed. We show that with realistic parameters for the manganites and at low temperatures, the double-exchange mechanism does not lead to phase separation on a two-dimensional lattice but rather stabilizes individual ferromagnetic polarons. A detailed analysis of unbiased MC results reveals that the polarons can be treated as independent particles. It is found that a simple polaron model perfectly describes the physics of the FM Kondo model. The ferromagnetic polaron picture provides an obvious explanation for the pseudogap in the one-particle spectral function $A_k(ω)$ observed in the FM Kondo model.
description: 15 pages, 9 figures; 1 new figure, additional references cited
Exploring the nitro group reduction in low-solubility oligo-phenylenevinylene systems: Rapid synthesis of amino derivatives
Creators: name: Acelas, Mauricio
name: Sierra, Andrés Felipe
name: Sierra, César A.
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Molecular Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: Inorganic Chemistry
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: A small series of amino oligo-phenylenevinylenes (OPVs) were successfully synthesized from their nitro-analogs in a rapid, simple, and highly efficient fashion employing a sodium sulfide/pyridine system as a reducing agent. In this research, classic and sustainable reduction methodologies including NH4HCO2/Zn and a choline chloride/tin (II) chloride deep eutectic solvent (DES) were also evaluated, showing degradation products, incomplete reactivity, and product isolation difficulties in all cases. The straightforward Na2S/pyridine synthetic protocol proved to maintain the E-E stereochemistry of the OPV backbone that has been previously assembled by the Mizoroki–Heck cross-coupling reaction. Also, the optoelectronic properties were determined and discussed, considering the amino group insertion in these conjugated systems as a contribution for future construction of novel materials with applications in supramolecular electronics, light harvesting, and photocatalysis.
Phase equilibria and fractionation in a polydisperse fluid
Creators: name: Wilding, Nigel B.
name: Sollich, Peter
Publisher: name: arXiv
Year: 2004
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We describe how Monte Carlo simulation within the grand canonical ensemble can be applied to the study of phase behaviour in polydisperse fluids. Attention is focused on the case of fixed polydispersity in which the form of the `parent' density distribution $ρ^\circ(σ)$ of the polydisperse attribute $σ$ is prescribed. Recently proposed computational methods facilitate determination of the chemical potential distribution conjugate to $ρ^\circ(σ)$. By additionally incorporating extended sampling techniques within this approach, the compositions of coexisting (`daughter') phases can be obtained and fractionation effects quantified. As a case study, we investigate the liquid-vapor phase equilibria of a size-disperse Lennard-Jones fluid exhibiting a large ($δ=40%$) degree of polydispersity. Cloud and shadow curves are obtained, the latter of which exhibit a high degree of fractionation with respect to the parent. Additionally, we observe considerable broadening of the coexistence region relative to the monodisperse limit.
description: 5 pages
Nonlinear screening theory of the Coulomb glass
Creators: name: Pankov, S.
name: Dobrosavljevic, V.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: A nonlinear screening theory is formulated to study the problem of gap formation and its relation to glassy freezing in classical Coulomb glasses. We find that a pseudo-gap ("plasma dip") in a single-particle density of states begins to open already at temperatures comparable to the Coulomb energy. This phenomenon is shown to reflect the emergence of short range correlations in a liquid (plasma) phase, a process which occurs even in the absence of disorder. Glassy ordering emerges when disorder is present, but this occurs only at temperatures more then an order of magnitude lower, which is shown to follow from nonlinear screening of the Coulomb interaction. Our result suggest that the formation of the "plasma dip" at high temperatures is a process distinct from the formation of the Efros-Shklovskii (ES) pseudo-gap, which in our model emerges only within the glassy phase.
description: 5 pages, 2 figures, accepted for publication to Phys. Rev. Lett
Improved constraints on reionisation from CMB observations: A parameterisation of the kSZ effect
Creators: name: Gorce, Adélie
name: Ilić, Stéphane
name: Douspis, Marian
name: Aubert, Dominique
name: Langer, Mathieu
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We show that, in the context of patchy reionisation, an accurate description of the angular power spectrum of the kinetic Sunyaev-Zel'dovich (kSZ) effect is not possible with simple scaling relations between the amplitude of the spectrum and global parameters, such as the reionisation midpoint and its duration. We introduce a new parameterisation of this spectrum, based on a novel description of the power spectrum of the free electrons density contrast Pee (k,z) in terms of the reionisation global history and morphology. We directly relate features of the spectrum to the typical ionised bubble size at different stages in the process and, subsequently, to the angular scale at which the patchy kSZ power spectrum reaches its maximum. We successfully calibrated our results on a custom set of advanced radiative hydrodynamical simulations and later found our parameterisation to be a valid description of a wide range of other simulations and, therefore, reionisation physics. In the end, and as long as the global reionisation history is known, two parameters are sufficient to derive the angular power spectrum. Such an innovative framework applied to cosmic microwave background data and combined with 21cm intensity mapping will allow a first consistent detection of the amplitude and shape of the patchy kSZ signal, giving in turn access to the physics of early light sources.
description: 14 pages, 12 figures. Accepted by A&A
Lepturges (Lepturges) umbrosus Monne 1978
Creators: name: Monné, Miguel A.
Publisher: name: Zenodo
Year: 2005
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Cerambycidae
Lepturges
Lepturges umbrosus

description: 62. Lepturges (Lepturges) umbrosus Monné, 1978
Type locality — Brazil, Mato Grosso: Sinop (12°31’S, 55°37’W). (MNRJ). Distribution — Brazil (Mato Grosso).
 Lepturges umbrosus Monné, 1978a: 9, fig. 9; Julio et al., 2000: 40 (holotype).
description: Published as part of Monné, Miguel A., 2005, Catalogue of the Cerambycidae (Coleoptera) of the Neotropical Region. Part II. Subfamily Lamiinae, pp. 1-760 in Zootaxa 1023 (1) on pages 1-760, DOI: 10.11646/zootaxa.946.1.1, http://zenodo.org/record/5049553