cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Navigating in Seclusion: The Complicated Terrain of Children’s Spirituality in Trauma, Grief and Loss
Creators: name: Boynton, Heather Marie
Publisher: name: Graduate Studies
Year: 2016
Subjects: subject: Education--Social Sciences
subject: Social Work
subject: FOS: Sociology
subject: Mental Health
subject: Psychology--Developmental
subject: Psychology--Social
subject: children
subject: Spirituality
subject: Trauma
subject: grief and loss
subject: Social Work
subject: grounded theory

description: The topic of spirituality has become an important area of focus in social work; however, there is great disparity in the attention extended to preadolescent children’s spirituality. Research with older individuals has demonstrated that spirituality is an important and significant factor in trauma, grief, and loss (TGL). It can be a source of strength, nurturance, comfort, and support, and it is a resource for resiliency, coping, and posttraumatic growth. However, not much is known about children’s spirituality in the area of TGL. Therefore, this research study sought to investigate the processes, experiences, and understandings of children’s spirituality in TGL in outpatient counselling. This study employed a constructivist grounded theory methodology, which is helpful in understanding the interpretations, attributable meanings, and experiences of participants in areas that are complex and underexplored. Semi-structured interviews were employed with eighteen participants including six children, five parents, and seven clinicians at a counselling centre in Northwestern Ontario. Theoretical sampling and a constant comparative method of data analysis were conducted in regards to the interpretations of participant’s descriptions. The theoretical model that emerged was navigating in seclusion. Children in this study were found to have robust and complex spiritual lives with abundant spiritual experiences, relationships, activities, and practices. Spirituality was sparked and catapulted by TGL events, and children experienced spiritual struggles, engaged in spiritual questioning, increased their spiritual activities and practices, and entrusted spiritual relationships. However, spirituality was understood to be a weird phenomenon that was not socially validated or supported, and it was deemed to be taboo by the participants. Many challenges and processes were exposed, and the overall experience was found to be isolating. Previous research with preadolescent children has contributed to the nascent development of theoretical knowledge; however, many gaps in the literature remain. This study addresses the gap in the area of TGL, and advances our understanding of children’s spirituality in social work. The findings of this study are related to the literature, and contribute to, and extend the literature on TGL and children’s spirituality. The theoretical contributions, implications for practice and future research are discussed, and the limitations of the study are considered.
Giant improper ferroelectricity in the ferroaxial magnet CaMn7O12
Creators: name: Johnson, R. D.
name: Chapon, L. C.
name: Khalyavin, D. D.
name: Manuel, P.
name: Radaelli, P. G.
name: Martin, C.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: In rhombohedral CaMn7O12, an improper ferroelectric polarization of magnitude 2870 μC m-2 is induced by an incommensurate helical magnetic structure that evolves below TN1 = 90 K. The electric polarization was found to be constrained to the high symmetry three-fold rotation axis of the crystal structure, perpendicular to the in-plane rotation of the magnetic moments. The multiferroicity is explained by the ferroaxial coupling mechanism, which in CaMn7O12 gives rise to the largest magnetically induced, electric polarization measured to date.
description: 10 pages, 4 figures, and 1 table. Submitted to Physical Review Letters
Masala - Newsletter Virtuelle Fachbibliothek
Creators: name: Merkel-Hilf, Nicole
Publisher: name: Masala: Newsletter Virtuelle Fachbibliothek Südasien
Year: 2015

description: Masala: Newsletter Virtuelle Fachbibliothek Südasien, Bd. 3 Nr. 2 (2008)
Algumas considerações sobre a experiência da mediação na esfera pública cultural
Creators: name: Centeno, Maria João Anastácio
Publisher: name: SOPCOM: Associação Portuguesa de Ciências da Comunicação
Year: 2005

description: A presente comunicação tem por objectivo indagar sobre a natureza da relação entre as organizações e os seus públicos no seio da esfera pública cultural. Numa época marcada pela autonomização e proliferação de diferentes esferas da experiência, interessa-nos perceber como no seu seio se produzem e impõem acções e discursos, de que forma se confrontam os interesses dos actores colectivos versus os interesses dos agentes individuais. Se o final do século XIX ficou marcado pela expansão do “espaço social de encontro”, na tentativa de corresponder às expectativas de participação de vários indivíduos, grupos e classes sociais, o século XX assiste à dissociação entre esse espaço dedicado ao debate e à livre circulação de ideias e a luta popular. Trata-se de um espaço que ganha novos contornos com a emergência de um novo tipo de configuração social – a massa.
description: SOPCOM: Associação Portuguesa de Ciências da Comunicação, 2005: 4º SOPCOM: “Repensar os Media: Novos Contextos da Comunicação e da Informação”
Masala - Newsletter Virtuelle Fachbibliothek
Creators: name: Merkel-Hilf, Nicole
Publisher: name: Masala: Newsletter Virtuelle Fachbibliothek Südasien
Year: 2015

description: Masala: Newsletter Virtuelle Fachbibliothek Südasien, Bd. 3 Nr. 1 (2008)
The AMIGA sample of isolated galaxies XI. A First Look at Isolated Galaxy Colors
Creators: name: Lorenzo, Mirian Fernández
name: Sulentic, Jack
name: Verdes-Montenegro, Lourdes
name: Ruiz, Jose Enrique
name: Sabater, Jose
name: Sánchez, Susana
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The basic properties of galaxies can be affected by both nature (internal processes) or nurture (interactions and effects of environment). Deconvolving the two effects is an important current effort in astrophysics. Observed properties of a sample of isolated galaxies should be largely the result of internal (natural) evolution. It follows that nurture-induced galaxy evolution can only be understood through comparative study of galaxies in different environments. We take a first look at SDSS (g-r) colors of galaxies in the AMIGA sample involving many of the most isolated galaxies in the local Universe. This leads us to simultaneously consider the pitfalls of using automated SDSS colors. We focus on median values for the principal morphological subtypes found in the AMIGA sample (E/S0 and Sb-Sc) and compare them with equivalent measures obtained for galaxies in denser environments. We find a weak tendency for AMIGA spiral galaxies to be redder than objects in close pairs. We find no clear difference when we compare with galaxies in other (e.g. group) environments. However, the (g-r) color of isolated galaxies shows a Gaussian distribution as might be expected assuming nurture-free evolution. We find a smaller median absolute deviation in colors for isolated galaxies compared to both wide and close pairs. The majority of the deviation on median colors for spiral subtypes is caused by a color-luminosity correlation. Surprisingly isolated and non-isolated early-type galaxies show similar (g-r). We see little evidence for a green valley in our sample with most spirals redder than (g-r)=0.7 having spurious colors. The redder colors of AMIGA spirals and lower color dispersions for AMIGA subtypes -compared with close pairs- is likely due to a more passive star formation in very isolated galaxies.
description: Accepted for publication in A&A. 9 pages, 7 Figures, and 2 tables, one only available online
About a low complexity class of Cellular Automata
Creators: name: Tisseur, Pierre
Publisher: name: arXiv
Year: 2012
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics

description: Extending to all probability measures the notion of m-equicontinuous cellular automata introduced for Bernoulli measures by Gilman, we show that the entropy is null if m is an invariant measure and that the sequence of image measures of a shift ergodic measure by iterations of such automata converges in Cesaro mean to an invariant measure mc. Moreover this cellular automaton is still mc-equicontinuous and the set of periodic points is dense in the topological support of the measure mc. The last property is also true when m is invariant and shift ergodic.
Masala - Newsletter Virtuelle Fachbibliothek
Creators: name: Merkel-Hilf, Nicole
Publisher: name: Masala: Newsletter Virtuelle Fachbibliothek Südasien
Year: 2015

description: Masala: Newsletter Virtuelle Fachbibliothek Südasien, Bd. 3 Nr. 3 (2008)
Nonlinear effects in random lasers
Creators: name: Andreasen, Jonathan
name: Sebbah, Patrick
name: Vanneste, Christian
Publisher: name: arXiv
Year: 2011
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Recent numerical and theoretical studies have demonstrated that the modes at threshold of a random laser are in direct correspondence with the resonances of the same system without gain, a feature which is well known in a conventional laser but which was not known until recently for a random laser. This paper presents numerical results, which extend such studies to the multimode regime that takes place when the pumping rate is progressively increased above threshold. Behavior that is already known in standard lasers, such as mode competition and nonlinear wave-mixing, are shown to also take place in random lasers thus reinforcing their recent modal description. However, due to the complexity of the laser modes and to the openness of such lasers, which requires large external pumping to compensate for strong loss, one observes that these effects are more pronounced than in a conventional laser.
“Abertura” e “presença” no contexto dos novos media
Creators: name: Marcos, Maria Lucília
Publisher: name: SOPCOM: Associação Portuguesa de Ciências da Comunicação
Year: 2005

description: No ano lectivo 1929-30, Heidegger intitulou o seu curso, na Universidade de Fribourg, como Os conceitos fundamentais da metafísica. Mundo-Finitude-Solidão2 e desenvolveu-o a partir de 3 pontos: “a pedra não tem mundo (weltlos), o animal é pobre em mundo (weltarm), o homem é formador de mundo (weltbildend)”. O não-vivente, a pedra, não tem qualquer tipo de acesso àquilo que o rodeia, enquanto o animal está fechado no círculo dos seus “desinibidores”, mundo perceptivo portador de sinais, nada mais podendo penetrar no círculo do animal. “O modo de ser próprio ao animal, que define a sua relação com o desinibidor, é o aturdimento”, o animal vive simultaneamente atordoado e absorto (Benommenheit no texto original, stordimento, captivation, stupeur nas versões italiana, inglesa e francesa). (...)
description: SOPCOM: Associação Portuguesa de Ciências da Comunicação, 2005: 4º SOPCOM: “Repensar os Media: Novos Contextos da Comunicação e da Informação”
A comunicação da experiência de si na contemporaneidade
Creators: name: Faia, Maria Amélia
Publisher: name: SOPCOM: Associação Portuguesa de Ciências da Comunicação
Year: 2005

description: Desaparecida a segurança metafísica de que a tutela divina era a principal guardiã, o contexto sociocultural da contemporaneidade responsabiliza o indivíduo pela construção da sua própria vida, recolocando a questão do sentido da experiência num patamar essencialmente antropológico da existência humana. (...)
description: SOPCOM: Associação Portuguesa de Ciências da Comunicação, 2005: 4º SOPCOM: “Repensar os Media: Novos Contextos da Comunicação e da Informação”
Masala - Newsletter Virtuelle Fachbibliothek
Creators: name: Merkel-Hilf, Nicole
Publisher: name: Masala: Newsletter Virtuelle Fachbibliothek Südasien
Year: 2015

description: Masala: Newsletter Virtuelle Fachbibliothek Südasien, Bd. 2 Nr. 4 (2007)
Exploring Volunteers' Understanding of Harm in International Volunteering Projects: A Mental Models Approach
Creators: name: Ladosz, Monika
Publisher: name: Graduate Studies
Year: 2015
Subjects: subject: Geography
subject: Volunteer Tourism
subject: Emotional Geography

description: Despite the growing numbers of volunteer tourists each year, volunteers’ understandings of harm while participating in international volunteering projects have received little attention. I conducted a qualitative study using a mental models approach to explore how volunteers based out of Calgary understand harm before going abroad and after returning from international volunteer trips. I explore how emotions work in these particular spaces and how they impact volunteers’ overall experiences. Gaps in volunteers’ understanding of harm pre- and post-travel were identified and analyzed. Findings suggest that volunteers’ pre-travel understanding of harm was associated with physical harm, however, volunteers’ understanding of harm post-travel tended to be associated with emotional harm. Understanding emotions in volunteer tourism spaces will aid sending organizations in mediating the relationships within and between volunteers in order to understand how harm may be reduced by training, support and outreach programs.
A análise do discurso numa perspectiva transversal
Creators: name: Almeida, Maria José Monteiro Martins De
Publisher: name: SOPCOM: Associação Portuguesa de Ciências da Comunicação
Year: 2005

description: As Ciências da Comunicação têm sido entendidas como área multidisciplinar, o que permite o recurso a uma perspectiva transversal e torna possível o cruzamento de enquadramentos teóricos. Em relação ao tema que agora nos ocupa, a Análise do Discurso, entendemos o debate e a argumentação como condições incontornáveis do acto de comunicação (Esteves, 2003) e, sendo assim, partimos de um modelo que privilegia ambos na análise discursiva, neste caso a Teoria da Argumentação de O. Ducrot (Anscombre, Ducrot, 1988). (...)
description: SOPCOM: Associação Portuguesa de Ciências da Comunicação, 2005: 4º SOPCOM: “Repensar os Media: Novos Contextos da Comunicação e da Informação”
A Herschel Search For Cold Dust in Brown Dwarf Disks: First Results
Creators: name: Harvey, Paul M.
name: Henning, Thomas
name: Menard, Francois
name: Wolf, Sebastian
name: Liu, Yao
name: Cieza, Lucas A.
name: Evans, Neal J.
name: Pascucci, Ilaria
name: Merin, Bruno
name: Pinte, Christophe
Publisher: name: arXiv
Year: 2011
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We report initial results from a {\it Herschel} program to search for far-infrared emission from cold dust around a statistically significant sample of young brown dwarfs. The first three objects in our survey are all detected at 70\micron, and we report the first detection of a brown dwarf at 160\micron. The flux densities are consistent with the presence of substantial amounts of cold dust in the outer disks around these objects. We modeled the SED's with two different radiative transfer codes. We find that a broad range of model parameters provides a reasonable fit to the SED's, but that the addition of our 70\micron, and especially the 160\micron\ detection enables strong lower limits to be placed on the disk masses since most of the mass is in the outer disk. We find likely disk masses in the range of a few $\times 10^{-6}$ to $10^{-4}$ \msun. Our models provide a good fit to the SED's and do not require dust settling.
Masala - Newsletter Virtuelle Fachbibliothek
Creators: name: Merkel-Hilf, Nicole
Publisher: name: Masala: Newsletter Virtuelle Fachbibliothek Südasien
Year: 2015

description: Masala: Newsletter Virtuelle Fachbibliothek Südasien, Bd. 2 Nr. 3 (2007)
Introdução
Creators: name: Alves, Aníbal
name: Galaricha, Carlos
Publisher: name: SOPCOM: Associação Portuguesa de Ciências da Comunicação
Year: 2005

description: São em número de 12 as comunicações aceites para a Mesa de Teorias da Comunicação propostas pelos seus autores, membros da nossa Associação Portuguesa de Ciências da Comunicação – SOPCOM. Juntou-se-lhe mais uma, também proposta por um associado, de iniciativa de um grupo de alunos de um Curso de Licenciatura em Comunicação Social. (...)
description: SOPCOM: Associação Portuguesa de Ciências da Comunicação, 2005: 4º SOPCOM: “Repensar os Media: Novos Contextos da Comunicação e da Informação”
Sequence encoding without induction
Creators: name: Jeřábek, Emil
Publisher: name: arXiv
Year: 2012
Subjects: subject: Logic (math.LO)
subject: Logic in Computer Science (cs.LO)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 03F30

description: We show that the universally axiomatized, induction-free theory PA^- is a sequential theory in the sense of Pudlák [5], in contrast to the closely related Robinson's arithmetic.
description: 7 pages
Masala - Newsletter Virtuelle Fachbibliothek
Creators: name: Merkel-Hilf, Nicole
Publisher: name: Masala: Newsletter Virtuelle Fachbibliothek Südasien
Year: 2015

description: Masala: Newsletter Virtuelle Fachbibliothek Südasien, Bd. 2 Nr. 2 (2007)
Variable Speed Limit: A Microscopic Analysis in a Connected Vehicle Environment
Creators: name: Khondaker, Bidoura
Publisher: name: Graduate Studies
Year: 2016
Subjects: subject: Sociology--Transportation
subject: Variable Speed Limit, Connected Vehicle, Driver Behavior, Optimization, Macroscopic, Microscopic, Microsimulation, Driver Compliance, Optimization

description: This thesis presents a novel proactive Variable Speed Limit (VSL) control algorithm to find a balanced trade-off among mobility, safety and environmental impact in a Connected Vehicle (CV) environment. The development of CV technology has the potential to provide essential data at the microscopic level to have an understanding of real time drivers' behavioural information. CVs also have the unprecedented ability to be used as mobile sensors able to capture the impact of control schemes on driver’s behaviour and compliance rate. In addition, Connected/Autonomous Vehicle initiatives claim to serve three main purposes: improving safety, enhancing mobility and reducing emissions. In line with these initiative, this thesis develops a dynamic anticipatory VSL control strategy that attempt to meet the multi-criteria objective of improving travel time, safety, and emission/fuel consumption, while taking into consideration the likely responses of drivers. A microscopic car following model, IDM (Treiber et al., 2000) in conjunction with a microscopic lane changing model, MOBIL (Treiber and Kesting, 2009) are used to anticipate the lane changing and acceleration/deceleration decisions of drivers on multi-lane freeway. A system-wide optimization using a multi-objective function is formulated to obtain the VSL values that minimize: (i) Total Travel Time (TTT); (ii) Collision probability derived from Time to Collision (TTC); and (iii) Emission and/or Fuel Consumption. The proposed algorithm has been optimized using Genetic Algorithm(GA) via an integrated VISSIM-COM-MATLAB interface. The results of the thesis suggested that the VSL strategies were able to result in fewer lane changing rate (LCR), which synchronized driver behaviour. Also, the developed algorithm was able to produce a smoother acceleration and deceleration pattern compared to the uncontrolled case, which corresponds to lower emission and fuel consumption. The sensitivity analysis results showed that at free flow condition, the VSL strategy outperformed the uncontrolled case up to 35% penetration rate. However, for higher demand levels, the safety component was highly sensitive to variation in % of CV and required more weight than the mobility and sustainability components. The result also indicated that 35% CV penetration rate was the minimum rate required to realize improvements in terms of safety, mobility and environmental improvements.
Masala - Newsletter Virtuelle Fachbibliothek
Creators: name: Merkel-Hilf, Nicole
Publisher: name: Masala: Newsletter Virtuelle Fachbibliothek Südasien
Year: 2015

description: Masala: Newsletter Virtuelle Fachbibliothek Südasien, Bd. 1 Nr. 2 (2006)
The exceptional-typical history of a Métis Elder in Fort St. John
Creators: name: Dolmage, Erin
Publisher: name: University of British Columbia
Year: 2010

description: This research is focussed on the collection and analysis of oral histories and diaries of Fort St. John Métis Elder May Barrette. By delving into May’s life through oral histories, personal diaries, and other archival research, I am constructing a microhistorical biography of one exceptional-typical woman’s life to contribute to a more comprehensive history of Métis women in north-eastern British Columbia and the Peace River country. This research looks at diaries and oral histories as historical sources, and explores the details of May’s life and her stories about women in the community. May’s own accounts of her childhood, coming to the Peace River as a pioneer, leaving to pursue an education, returning to start a family and taking on a self described role as a “diary keeper,” exemplifies the significance of a microhistorical subject. The life of an exceptional-typical individual, like May, offers historians a window into the experiences of women in one of the last pioneer areas in Canada. Her voice, telling individual as well as community stories, is doubly-relational; May’s life story touches not just on the broader issues affecting her and her family, but also those of women in the Peace and her community as a whole. Through sharing her diaries and stories May made sure that these stories would not just continue to be told and after she was gone, but that the stories of the women in Fort St. John were treated as a valuable part of the area’s history.
Parrondo games with spatial dependence, II
Creators: name: Ethier, S. N.
name: Lee, Jiyeon
Publisher: name: arXiv
Year: 2012
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60J20 (Primary) 60K35 (Secondary)

description: Let game B be Toral's cooperative Parrondo game with (one-dimensional) spatial dependence, parameterized by N (3 or more) and p_0, p_1, p_2, p_3 in [0,1], and let game A be the special case p_0=p_1=p_2=p_3=1/2. In previous work we investigated mu_B and mu_(1/2,1/2), the mean profits per turn to the ensemble of N players always playing game B and always playing the randomly mixed game (1/2)(A+B). These means were computable for N=3,4,5,...,19, at least, and appeared to converge as N approaches infinity, suggesting that the Parrondo region (i.e., the region in which mu_B is nonpositive and mu_(1/2,1/2) is positive) has nonzero volume in the limit. The convergence was established under certain conditions, and the limits were expressed in terms of a parameterized spin system on the one-dimensional integer lattice. In this paper we replace the random mixture with the nonrandom periodic pattern A^r B^s, where r and s are positive integers. We show that mu_[r,s], the mean profit per turn to the ensemble of N players repeatedly playing the pattern A^r B^s, is computable for N=3,4,5,...,18 and r+s=2,3,4, at least, and appears to converge as N approaches infinity, albeit more slowly than in the random-mixture case. Again this suggests that the Parrondo region (mu_B is nonpositive and mu_[r,s] is positive) has nonzero volume in the limit. Moreover, we can prove this convergence under certain conditions and identify the limits.
description: 18 pages, 2 figures
Sociologia da comunicação: as bases de um estudo no contexto das organizações
Creators: name: Pereira, Sandra
Publisher: name: SOPCOM: Associação Portuguesa de Ciências da Comunicação
Year: 2005

description: A sociologia tem um lugar especial no conhecimento da sociedade dos nossos dias, se tomarmos em consideração a ideia de que as sociedades actuais são reflexivas, em graus muito mais elevados que as anteriores, obrigando a uma maior consciência e avaliação dos processos que nelas ocorrem (Leite Viegas e Firmino da Costa, 1998, p. 2). Dado o seu carácter imaginativo e multifacetado (Giddens, 2004), os seus focos alargados de preocupação e as suas opções metodológicas, a sociologia está bem apetrechada para colocar as questões certas e equacionar um olhar sobre o mundo social capaz de promover mudanças, quer no campo científico, quer no campo político. (...)
description: SOPCOM: Associação Portuguesa de Ciências da Comunicação, 2005: 4º SOPCOM: “Repensar os Media: Novos Contextos da Comunicação e da Informação”
Effect of residual oxygen in combined co2 flooding and sequestration process
Creators: name: Jia, Na
Publisher: name: University of Calgary
Year: 2007

description: Bibliography: p. 258-268
description: Carbon dioxide flooding is a well-established enhanced oil recovery process. The cost of a combined CO2 miscible flood/sequestration process depends on the purity of injected CO2 stream. Oxygen contaminant is of particular interest as it can modify the native oil properties through low temperature oxidation reactions; promote corrosion in the piping. This study investigated the influence of various levels of oxygen as an impurity in CO2 on the selected light oil. Effects of oxygen concentration in the feed gas reaction temperature, pressure, time and the presence of core matrix and brine on compositional changes and rheological properties in the partially oxidized oil have been investigated. It was found that the asphaltenes and coke yields of the reacted oil were higher than the original oil's values following the injection of pure CO2 or CO2/O2 gas mixtures. Asphaltenes plus coke yields increased with increasing temperature when oxygen was present. The presence of core promoted the production of asphaltenes but retarded the formation of coke. It showed that asphaltenes plus coke contents increased smoothly with increasing oxygen concentration in the feed gas. With enough reaction time, the sum of coke and asphaltenes would flatten out when the oxygen concentration was above 5 mol%. Viscosities and densities of the modified oil were higher than those of the original oil. Phase behavior observations and swelling experiments for different concentrations of CO2/O2 mixtures injected into the light oil were conducted to investigate the complex phase phenomenon that occurred during the carbon dioxide flooding process. Multi-phase equilibrium calculations were conducted to predict the component distribution. The effect of oxygen/carbon dioxide gas mixtures on Athabasca bitumen was studied in this thesis. The results showed influence of the gas mixtures on compositional changes and rheological properties of the Athabasca bitumen. A kinetic model for describing low temperature oxidation reactions was developed. It explained the mutual conversion between the maltenes and asphaltenes, and the oil compositional changes as a function of the reaction time. Development of this kinetic model provided a better understanding of the reaction mechanism when an oxygen containing gas was injected into a reservoir.
Adequate subgroups
Creators: name: Guralnick, Robert
name: Herzig, Florian
name: Taylor, Richard
name: Thorne, Jack
Publisher: name: arXiv
Year: 2011
Subjects: subject: Number Theory (math.NT)
subject: Group Theory (math.GR)
subject: FOS: Mathematics

description: We study adequate subgroups of $GL_n$ over a finite field. This notion is useful in the study of automorphy lifting theorems. In particular, we give a sufficient condition for a subgroup to be adequate.
description: 15 pages. This is the appendix to the paper `On the automorphy of $l$-adic Galois representations with small residual image', by Jack Thorne
Masala - Newsletter Virtuelle Fachbibliothek
Creators: name: Merkel-Hilf, Nicole
Publisher: name: Masala: Newsletter Virtuelle Fachbibliothek Südasien
Year: 2015

description: Masala: Newsletter Virtuelle Fachbibliothek Südasien, Bd. 2 Nr. 1 (2007)
Masala - Newsletter Virtuelle Fachbibliothek
Creators: name: Merkel-Hilf, Nicole
Publisher: name: Masala: Newsletter Virtuelle Fachbibliothek Südasien
Year: 2015

description: Masala: Newsletter Virtuelle Fachbibliothek Südasien, Bd. 1 Nr. 1 (2006)
Interplay between quantum interference and Kondo effects in nonequilibrium transport through nanoscopic systems
Creators: name: Roura-Bas, P.
name: Tosi, L.
name: Aligia, A. A.
name: Hallberg, K.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We calculate the finite temperature and non-equilibrium electric current through systems described generically at low energy by a singlet and \emph{two} spin doublets for $N$ and $N \pm 1$ electrons respectively, coupled asymmetrically to two conducting leads, which allows for destructive interference in the conductance. The model is suitable for studying transport in a great variety of systems such us aromatic molecules, different geometries of quantum dots and rings with applied magnetic flux. As a consequence of the interplay between interference and Kondo effect, we find changes by several orders of magnitude in the values of the conductance and its temperature dependence as the doublet level splitting is changed by some external parameter. The differential conductance at finite bias is negative for some parameters.
description: 4 pages, 5 figures
Die "Bedes": Darstellung und Kategorisierung nicht-sesshafter Gruppen in Bengalen
Creators: name: Brandt, Carmen
Publisher: name: Masala: Newsletter Virtuelle Fachbibliothek Südasien
Year: 2015

description: Masala: Newsletter Virtuelle Fachbibliothek Südasien, Bd. 10 Nr. 1 (2015)
The Time Dependence of hot Jupiters' Orbital Inclinations
Creators: name: Triaud, Amaury H. M. J.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Via the Rossiter-McLaughlin effect, it is possible to measure the sky-projected angle between the stellar spin and a planet's orbital spin. Observed orbital inclinations have been found to range over all possible angles. A tentative detection of a correlation between the dispersion in spin/orbit angle and the youth of the system is revealed, using spin/orbit measurements for hot Jupiters around stars with masses larger than 1.2 Solar Masses for which age estimates are more accurately determined. The chance of this pattern arising by chance has been computed to 7%. This appears in accordance with tidal dissipation where non-coplanar hot Jupiters' orbits tidally realign. The results show they would do so within about 2.5 Gyr. For the considered sample, the results give support to hot Jupiters being placed on non coplanar orbits early in their history rather than this happening late. Such events could involve strong planet-planet scattering.
description: Accepted by A&A; 5 pages, 1 table, 3 figures
Simulating quantum circuits with restricted quantum computers
Creators: name: Piveteau, Christophe
Publisher: name: arXiv
Year: 2025
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: It is one of the most fundamental objectives in quantum information science to understand the boundary between the computational power of classical and quantum computers. One possible avenue to explore this boundary is to identify classes of quantum circuits that can be efficiently simulated on a classical computer. Instead of simulating a general quantum circuit with a classical device, new schemes have recently emerged to simulate them on a quantum device that is restricted in some manner. As such, these techniques allow us to study how the restrictions impact the computational power of the device. One such technique is called quasiprobability simulation (QPS) and it estimates the result of a quantum circuit with a Monte Carlo procedure that randomly replaces circuit elements with ones that can be executed on the restricted quantum device.
 The main focus of this thesis is dedicated to the QPS-based simulation of nonlocal quantum computation using local quantum operations. On the practical side, this enables the simulation of large quantum circuits using multiple smaller quantum devices - a procedure that is sometimes called circuit knitting. We uncover a rich mathematical formalism with many connections to the resource theory of entanglement. We characterize the optimal simulation overhead for a broad range of practically relevant nonlocal states and channels and we explicitly provide achieving protocols. Moreover, we also investigate the utility of classical communication between the local parties. Our results address both the single-shot and asymptotic regime.
 We frame QPS in a quantum resource theoretic framework, which highlights similarities that arise in the different instantiations of the technique. Furthermore, we study the importance of classical side information in the QPS procedure and how it impacts the overhead and expressibility of QPS.
description: PhD thesis, ETH Zurich. Contains material from arXiv:2103.04915, arXiv:2205.00016, arXiv:2302.03366, arXiv:2312.11638
"Agents and Articulators of Change": Student Politics and the State in West Pakistan 1940s-1971
Creators: name: Bajwa, Sadia
Publisher: name: Masala: Newsletter Virtuelle Fachbibliothek Südasien
Year: 2015

description: Masala: Newsletter Virtuelle Fachbibliothek Südasien, Bd. 10 Nr. 1 (2015)
Representações e práticas de recepção dos media informativos: uma abordagem empírica qualitativa
Creators: name: Horta, Ana Maria
Publisher: name: SOPCOM: Associação Portuguesa de Ciências da Comunicação
Year: 2005

description: Com base num conjunto de entrevistas realizadas junto de indivíduos com qualificações académicas muito diferenciadas, procura-se demonstrar como diversas disposições sociais, incorporadas a respeito quer da posição na estratificação social quer do jornalismo, estão relacionadas com as representações e as práticas individuais no âmbito da recepção dos media.
description: SOPCOM: Associação Portuguesa de Ciências da Comunicação, 2005: 4º SOPCOM: “Repensar os Media: Novos Contextos da Comunicação e da Informação”
Utilizing Conjugate Thermal Fields to Drive Ordering Processes in Molecular Dynamics Simulations
Creators: name: Dittmar, Harro
Publisher: name: Graduate Studies
Year: 2015
Subjects: subject: Condensed Matter
subject: configurational
subject: thermostat
subject: Thermal
subject: field
subject: crystallization
subject: Nucleation

description: Molecular simulations allow the measurement of microscopic details beyond the temporal and spatial resolution of experimental methods. However, the limitation of molecular dynamics simulations to microscopic length and time scales that can be achieved with reasonable computational effort poses challenges. For example, homogeneous crystal nucleation is an ordering process of considerable interest, where an entropic barrier typically prevents it from occurring in brute-force simulations. Details about the early stages of the formation of a crystalline nucleus from the liquid are simplified in conventional theories like the classical nucleation theory or the diffusive interface theory; consequently, these theories do not suffice to explain alternative nucleation mechanisms. To study activated processes like homogeneous crystal nucleation in simulations, so called rare-event sampling methods have been developed, which typically depend on a judicious choice of suitable order parameters, which can unknowingly bias the process of interest. To circumvent this challenge, it would be beneficial to find a new very general and systematically applicable sampling bias that promotes the phenomenon of crystallization rather than the formation of a particular lattice structure. This work introduces a new approach that enhances the sampling of ordered arrangements in molecular simulations of liquids thereby giving rise to dramatically accelerated crystal nucleation rates, by as much as 30 orders of magnitude. This is achieved by the simultaneous application of thermostat algorithms that control the kinetic and configurational degrees of freedom separately and maintain an induced conversion of potential into kinetic energy. We call the difference between the kinetic and configurational temperatures in this steady state a 'conjugate thermal field'. The complete process of crystal nucleation has been simulated in liquid Lennard Jones and carbon dioxide (EPM2 model) systems, and similar localized effects on structure and mobility were found in two-dimensional purely repulsive spheres and Lennard Jones disks, as well as a rigid water model (TIP4P-2005 model). All our results agree with the interpretation that the bias enhances the sampling of configurations that sustain vibrational motion patterns, and indicate that it can also be applied to facilitate the simulation of crystal nucleation and crystallization of other materials.
Auf der Suche nach "philosophischen Rittern in sivaitischen Roben": Saiva Siddhanta in Tamil Nadu
Creators: name: Klöber, Rafael
Publisher: name: Masala: Newsletter Virtuelle Fachbibliothek Südasien
Year: 2015

description: Masala: Newsletter Virtuelle Fachbibliothek Südasien, Bd. 10 Nr. 1 (2015)
Floating Spaces at Sea - Schiffszeitungen und Reiseerfahrung im 19. und 20. Jahrhundert
Creators: name: Liebich, Susann
name: Matjeka, Carolin
name: De Schmidt, Johanna
Publisher: name: Masala: Newsletter Virtuelle Fachbibliothek Südasien
Year: 2015

description: Masala: Newsletter Virtuelle Fachbibliothek Südasien, Bd. 10 Nr. 1 (2015)
Modelling and Enforcing Purpose in Privacy Policies
Creators: name: Jafari, Mohammad
Publisher: name: Graduate Studies
Year: 2013
Subjects: subject: Computer Science
subject: Purpose
subject: Privacy
subject: Workflow

description: Privacy concerns are among the most significant side effects of advances in computer and networking technologies. Expressing and enforcing privacy policies is necessary to ensure that processing of personal information in these systems does not violate privacy of individuals. Privacy laws and regulations, as well as various privacy policy languages and privacy-preserving systems show no disagreement in that purpose of use has a key role in privacy policies and is an important factor in controlling access to personal data. In the current literature on privacy, purposes have been treated mostly as opaque labels with little or no semantics. The resulting ambiguities have made purposes susceptible to malicious or inadvertent misinterpretations. Consequently, enforcing purpose-based policies has also remained a challenge. In this research, we address these problems. We develop a framework that defines purposes formally and provides a formal language for expressing purpose constraints, as well as the corresponding method for evaluating them in the context of a workflow. The semantics of this language are defined over an abstract model of business workflows. We show how purpose constraints can be linked to access control rules to form purpose-based policies and develop an enforcement mechanism in the form of a workflow reference monitor to ensure compliance to such policies. We also show how a simple form of such a reference monitor can be implemented using XACML, a common open standard access control system in the industry.
Resonances in 19Ne with relevance to the astrophysically important 18F(p,α)15O reaction
Creators: name: Mountford, D. J.
name: Murphy, A. St J.
name: Achouri, N. L.
name: Angulo, C.
name: Brown, J. R.
name: Davinson, T.
name: Santos, F. de Oliveira
name: de Séréville, N.
name: Descouvemont, P.
name: Kamalou, O.
name: Laird, A. M.
name: Pittman, S. T.
name: Ujic, P.
name: Woods, P. J.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The most intense gamma-ray line observable from novae is likely to be from positron annihilation associated with the decay of 18F. The uncertainty in the destruction rate of this nucleus through the 18F(p,α)15O reaction presents a limit to interpretation of any future observed gamma-ray flux. Direct measurements of the cross section of both this reaction and the 18F(p,p)18F reaction have been performed between center of mass energies of 0.5 and 1.9 MeV. Simultaneous fits to both data sets with the R-Matrix formalism reveal several resonances, with the inferred parameters of populated states in 19Ne in general agreement with previous measurements. Of particular interest, extra strength has been observed above ECM \sim1.3 MeV in the 18F(p,p)18F reaction and between 1.3-1.7 MeV in the 18F(p,α)15O reaction. This is well described by a broad 1/2+ state, consistent with both a recent theoretical prediction and an inelastic scattering measurement. The astrophysical implications of a broad sub-threshold partner to this state are discussed.
description: 7 pages, 4 figures, 2 tables
UML modelling of geographic routing protocol "Greedy Perimeter Stateless Routing" for its integration into the "Java Network Simulator"
Creators: name: Erritali, Mohammed
name: Reda, Oussama Mohamed
name: Ouahidi, Bouabid El
Publisher: name: arXiv
Year: 2012
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: In this work we propose an UML modeling of the "Greedy Perimeter Stateless Routing" (GPSR) protocol that integrate this geographic routing protocol, into "JavaNetwork Simulator" to simulate and study this protocol in a first time and offer some improvement in these features. Java Network Simulator (JNS) is a project of "translation" of Network Simulator (NS) in Java initiated by "the UCL Department of Computer Science". This simulator is not as complete as ns-2, but it is much more accessible to programmers unfamiliar with Tcl. Java Network Simulator does not support so far, no routing protocol for vehicular ad hoc networks and all the routing decisions are made statically or using RIP and OSPF. By modeling and integrating the routing protocol GPSR to JNS, users will be able to understand the concept of the geographic routing and how the routing information is transmitted and updated between nodes in vehicular ad hoc network. The article first examines the architecture of the Java Network Simulator, then gives a brief review of the routing protocol GPSR and finally presents our UML modeling incorporating GPSR in the Java Network Simulator.
description: 5 pages
Südasien im Deutschen Fernsehen: Die Video-Sammlung des Südasien-Instituts
Creators: name: Zingel, Wolfgang-Peter
Publisher: name: Masala: Newsletter Virtuelle Fachbibliothek Südasien
Year: 2015

description: Masala: Newsletter Virtuelle Fachbibliothek Südasien, Bd. 10 Nr. 1 (2015)
Ruthenium Mesoionic Carbene Complexes and their Applications in Energy Generation and Storage
Creators: name: Brown, Douglas
Publisher: name: Graduate Studies
Year: 2017
Subjects: subject: Education--Sciences
subject: Chemistry
subject: Chemistry--Inorganic
subject: Dye-sensitized solar cell
subject: Ruthenium
subject: Water oxidation
subject: Mesoionic Carbene
subject: Energy generation
subject: Energy Storage

description: A series of bis(tridentate) ruthenium complexes bearing 2',6'-bis(1-(2,6-dimethyl-4-bromophenyl)-3-methyl-1,2,3-triazol-4-yl-5-idene)pyridine (C^N^C) have been synthesized and characterized. The complexes of the type [Ru(terpy)(C^N^C)]2+ and derivatives herein, exhibit longer excited state lifetimes (τ) than the archetypical [Ru(terpy)2]2+ (terpy = 2,2':6,2''-terpyridine; τ = 0.25 ns) by several orders of magnitude (τ ~ 8 μs). Their unique ligand geometry and robust sensitization of TiO2 offer insightful design considerations in both dye-sensitized solar cell (DSSC) and water oxidation. In Chapter 2, a series of ruthenium complexes were investigated for their emission properties, which exhibited some of the longest room temperature excited state lifetimes ever reported. Modifications of both ligand fragments were conducted with electron-donating groups and electron-withdrawing groups, which enabled fine-tuning of the triplet metal-to-ligand charge transfer (3MLCT) state. This was a result of destabilizing the normally thermally accessible deactivating triplet metal centered (3MC) state. The location of the lowest-unoccupied molecular orbital (LUMO) could be tuned to reside on either the terpy or C^N^C fragment through chemical modification. Chapter 3 provides details on the sensitization of TiO2 through the cooperative anchoring of phosphonate (-PO3H2) and carboxylate (-CO2H) groups and their performance in the DSSC. Using a combination of anchoring groups provided an opportunity to address the instability due to hydrolysis with the -PO3H2 group, while maintaining electronic communication through the preferred -CO2H. The geometry of the two tridentate ligands within the complexes permitted them to be bind through both ligands to the TiO2 surface. Temporal stability studies identified the cooperative binding approach successfully increased hydrolysis resistance and that the –CO2H moiety on the terpy ligand was critical for higher power conversion efficiencies (PCE ~ 0.2%). The absorption spectrum showed modest absorptions over the visible spectrum 400 to 650 nm (λmax ~ 470 nm ; ε up to 1.0 × 104 M-1cm-1), which limited the maximum PCE ~ 2% based on the solar spectrum. In Chapter 4, the cooperative anchoring strategy was exploited in the heterogenization of a molecular water oxidation catalyst. The title complex ([Ru(bpy-CO2H)(C^N^C-PO3H2)Cl]2+) investigated was anchored to TiO2 and the catalytic oxidation of water (~4.0 μA/cm2; TOF 0.0004s-1) was demonstrated.
Wie werden Bücher in südasiatischen Schriften in Bibliothekskatalogen erfasst?
Creators: name: Merkel-Hilf, Nicole
name: Steinert, Dirk M.
Publisher: name: Masala: Newsletter Virtuelle Fachbibliothek Südasien
Year: 2015

description: Masala: Newsletter Virtuelle Fachbibliothek Südasien, Bd. 10 Nr. 1 (2015)