cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Implanted Bottom Gate for Epitaxial Graphene on Silicon Carbide
Creators: name: Waldmann, Daniel
name: Jobst, Johannes
name: Fromm, Felix
name: Speck, Florian
name: Seyller, Thomas
name: Krieger, Michael
name: Weber, Heiko B.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present a technique to tune the charge density of epitaxial graphene via an electrostatic gate that is buried in the silicon carbide substrate. The result is a device in which graphene remains accessible for further manipulation or investigation. Via nitrogen or phosphor implantation into a silicon carbide wafer and subsequent graphene growth, devices can routinely be fabricated using standard semiconductor technology. We have optimized samples for room temperature as well as for cryogenic temperature operation. Depending on implantation dose and temperature we operate in two gating regimes. In the first, the gating mechanism is similar to a MOSFET, the second is based on a tuned space charge region of the silicon carbide semiconductor. We present a detailed model that describes the two gating regimes and the transition in between.
description: Manuscript submitted to Journal of Physics D
Bases de dados e webjornalismo: em busca de novos conceitos
Creators: name: Barbosa, Suzana
Publisher: name: SOPCOM: Associação Portuguesa de Ciências da Comunicação
Year: 2005

description: Nesta comunicação, discute-se o novo status das bases de dados (BDs) como formato e metáfora para o webjornalismo, apontando-se conceitos e definições que julgamos pertinentes para compreender tal atribuição. Num produto jornalístico construído em bases de dados, as possibilidades combinatórias entre os itens ou notícias inseridas pode gerar mais conhecimento com valor noticioso, produzindo diferentes configurações para as informações e, inclusive, novas tematizações ou elementos conceituais para a organização e apresentação dos conteúdos. Diante disso, considera-se que a utilização das BDs para a estruturação e a organização das informações traz perspectivas de mudanças em relação aos modos de fazer webjornalismo e estabelece um diferencial, sobretudo no contexto da que se considera a terceira geração de evolução para essa modalidade.
description: SOPCOM: Associação Portuguesa de Ciências da Comunicação, 2005: 4º SOPCOM: “Repensar os Media: Novos Contextos da Comunicação e da Informação”
Examining Critical Thinking Development in Undergraduate Nursing Students Utilizing Online and Face-to-Face Technology-Enhanced Learning Environments
Creators: name: Swart, Ruth
Publisher: name: Graduate Studies
Year: 2015
Subjects: subject: Education--Higher
subject: Nursing Education
subject: Critical Thinking
subject: Education

description: This research study examines the utilization of technology-enhanced learning environments, in face-to-face and online settings, to engage undergraduate nursing students in critical thinking. Critical thinking is highly acclaimed in today’s educational and professional arenas -- a valuable asset for graduating students from higher education programs. Technology has advanced in quantity and quality; similarly, educational technology is growing in use, diversity, and prevalence recognizing potential requirements of 21st century learners. A blended learning approach comprising of two technology-enhanced environments was used in supporting development of critical thinking: a classroom response system face-to-face in-class and an online discussion forum out-of-class. The Community of Inquiry framework that structures the study captured constructivist collaborative inquiry to facilitate the development of critical thinking, while building a supportive environment for learning. This mixed methods study used pre- and posttesting to assess changes in students’ critical thinking, as well as surveyed students with closed and open-ended questions to gather their perspectives about developing critical thinking, and engagement in learning through both technology-enhanced learning environments. Qualitative content analysis was used to assess the quality of the online discussion forum exchange for indications of critical thinking. These various data source and analyses have the potential to provide a comprehensive understanding of how nursing students develop of critical thinking and engage with technology-enhanced learning environments. The findings show that students were positive towards the incorporation of technology-enhanced learning. They were appreciative of its use in delivering course information and in supporting their development of critical thinking. The two forms of technology used offered students different means to actively participate in learning, thereby meeting different needs and preferences, which was deemed beneficial by the students. From their perspective, they considered that aligning critical thinking instruction and inquiry with subject-specific content facilitated understanding and application of course material engendering relevance to their learning. While the findings are limited to students who participated in the research study, the instructional strategies and technology-enhanced learning identified as beneficial provides the basis for course design and implementation for the development of critical thinking.
Existence and uniqueness of nontrivial collocation solutions of implicitly linear homogeneous Volterra integral equations
Creators: name: Bolós, Vicente J.
name: Benítez, Rafael
Publisher: name: arXiv
Year: 2011
Subjects: subject: Numerical Analysis (math.NA)
subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 45D05, 45G10, 65R20, 34A12

description: We analyze collocation methods for nonlinear homogeneous Volterra-Hammerstein integral equations with non-Lipschitz nonlinearity. We present different kinds of existence and uniqueness of nontrivial collocation solutions and we give conditions for such existence and uniqueness in some cases. Finally we illustrate these methods with an example of a collocation problem, and we give some examples of collocation problems that do not fit in the cases studied previously.
description: 18 pages, 4 figures
First-principles investigation of hyperfine interactions for nuclear spin entanglement in photo-excited fullerenes
Creators: name: Filidou, Vasileia
name: Ceresoli, Davide
name: Morton, John J. L.
name: Giustino, Feliciano
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: The study of hyperfine interactions in optically excited fullerenes has recently acquired importance within the context of nuclear spin entanglement for quantum information technology. We here report a first-principles pseudopotential study of the hyperfine coupling parameters of optically excited fullerene derivatives as well as small organic radicals. The calculations are performed within the gauge-invariant projector-augmented wave method [C. Pickard and F. Mauri, Phys. Rev. B. 63, 245101 (2001)]. In order to establish the accuracy of this methodology we compare our results with all-electron calculations and with experiment. In the case of fullerene derivatives we study the hyperfine coupling in the spin-triplet exciton state and compare our calculations with recent electron paramagnetic resonance measurements [M. Schaffry et al., Phys. Rev. Lett. 104, 200501 (2010)]. We discuss our results in light of a recent proposal for entangling remote nuclear spins in photo-excited chromophores.
description: 8 pages, 4 figures
As cinco cabeças do dragão: tecnologia como instrumento, infra-estrutura, sector, contexto e background
Creators: name: Ilharco, Fernando
Publisher: name: SOPCOM: Associação Portuguesa de Ciências da Comunicação
Year: 2005

description: A era da informação – a nossa era tal como intuitiva e consensualmente a apelidamos – pode afirmar-se que se iniciou há pouco mais de cinquenta anos, com a publicação do paper de Shannon e Weaver (1949). As últimas décadas testemunharam a penetração massiva da televisão na vida quotidiana, com especial destaque para os países do hemisfério Norte. Uma enorme distância separa o mundo de hoje do de 1937 quando a BBC realizou a sua primeira transmissão televisiva em directo a partir do exterior: a coroação do Rei Jorge VI em Hyde Park, seguida por alguns milhares de espectadores. Em 1969, a chegada à Lua foi transmitida via satélite para uma audiência estimada em 100 milhões de pessoas. Em Setembro de 2001, a maioria da população mundial assistiu, quer em directo quer em diferido, quer na televisão quer na Internet, aos ataques terroristas em Nova Iorque e em Washington. (...)
description: SOPCOM: Associação Portuguesa de Ciências da Comunicação, 2005: 4º SOPCOM: “Repensar os Media: Novos Contextos da Comunicação e da Informação”
Retarded interactions in Graphene systems
Creators: name: Sernelius, Bo E.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We first demonstrate how two-dimensional sheets are incorporated in the formalism for planar structures. Then we derive the interaction in the geometry of two free-standing graphene sheets and of one graphene sheet above a substrate. Numerical results are produced for the fully retarded interaction at 0 K and at room temperature for undoped and doped graphene. Additional results are given both for a gold substrate and for an ideal metal substrate.
description: 11 pages, 17 figures
General Chaffee's Small Wars: Institutional Culture, Command Intention, and Restraint in American Expeditionary Wars, 1899-1902
Creators: name: White, Stuart
Publisher: name: Graduate Studies
Year: 2016
Subjects: subject: History--Modern
subject: History--Asia, Australia, and Oceania
subject: History--Military
subject: History--United States
subject: Law
subject: FOS: Law
subject: Restraint
subject: Culture
subject: Small War
subject: Philippine War
subject: Boxer Uprising
subject: 1863 General Orders 100
subject: United States Army

description: This study examines U.S. conduct in two small wars in the Pacific at the turn of the twentieth century in order to examine the forces which contribute most directly to the maintenance or rupture of combatant restraint. The literature on the Philippine War and the Boxer Uprising often exaggerates the extent and influence of racism on combatant conduct, and prioritizes anecdotes of atrocity over a more contextualized survey. That interpretation masks the extent of real U.S. restraint in interactions with Chinese and Filipino populations in those conflicts, and ignores factors which play a greater role in determining troop behaviour. This study demonstrates that those factors, such as command intention, support from mid and low level officers, and limited operational objectives, are shaped by a number of internal and external forces, such as the nature of the conflict, the nature of the enemy, and the institutional norms of the military organization. It concludes that U.S. forces of that period applied violence instrumentally, and shied away from direct attacks on civilian populations. Restraint is possible but only where multiple factors align to create favourable conditions.
Documenting and validating administrative data with DDI
Creators: name: Tailhurat, Romain
Publisher: name: Zenodo
Year: 2023
Subjects: ddi
administrative data
vtl
metadata

description: Official statistics increasingly rely on external sources, particularly administrative data, to produce statistics. This requires further industrialisation of the data integration before the downstream steps leading to dissemination.In 2021, INSEE has launched a project named Resil with the objective of centralising administrative data ingestion for further processing of social statistics. Raw data received must be delivered to statisticians with documentation, in particular structural metadata.
DDI is used for describing the structure of the data stored. The data acquisition tool takes this formal description as input and generates the model of ingested data. So, DDI is used in an active way, since the DDI documentation is required to process the data received.
In order to assess the compliance between data and associated structural metadata (e.g., an integer value must be between limits, a code value must be present in a code list...), INSEE has developed a tool which generates VTL scripts (Validation and Transformation Language is a standard, part of SDMX) from structural metadata in DDI. The validation is then performed using Trevas, an open source VTL engine for big data distributed environments.
The presentation will focus on DDI as the pivot model for documenting and validating administrative data in the context of Resil.
Estratégias de uso e consumo dos novos media: audiências fragmentadas e novas audiências
Creators: name: Damásio, Manuel José
Publisher: name: SOPCOM: Associação Portuguesa de Ciências da Comunicação
Year: 2005

description: As formas de acesso, uso e consumo dos novos media, são um objecto central de análise para as ciências da comunicação e para a melhor compreensão da relação entre tecnologia e sociedade. Tal análise permite a identificação dos factores que individualizam perante o sujeito novos dispositivos tecnológicos, nomeadamente quando comparados a formas anteriores de comunicação, e facilita a delimitação dos vários papéis que os sujeitos, individual e colectivamente organizados, assumem na apropriação e utilização de tais tecnologias. Este artigo discute as estratégias e modelos de uso e consumo de Tecnologias da Informação e da Comunicação e posiciona esta discussão no contexto mais vasto da análise do papel das audiências e dos sujeitos na formatação dessas mesmas tecnologias.
description: SOPCOM: Associação Portuguesa de Ciências da Comunicação, 2005: 4º SOPCOM: “Repensar os Media: Novos Contextos da Comunicação e da Informação”
Whose Voices Are Heard and How? Understanding Post-Secondary Policy and Agenda-Setting in Canadian Provinces: A Focus on Memorial University of Newfoundland
Creators: name: Vaughan, Ann Marie
Publisher: name: Graduate Studies
Year: 2015
Subjects: subject: Education--Higher
subject: Higher Education
subject: Administration

description: Universities and colleges are impacted by the changing nature of government interaction. Over the past 50 years, governments have moved from a liberal approach to neo-liberal resulting in deliberate involvement of government in the form and function of higher education institutions. From a neo-liberal perspective, this is the result of government’s direct involvement in and manipulation of the market in an economy that has moved from a regional to a global context. Between 2004 and 2010, 8 Canadian provinces held reviews of their respective post-secondary systems. This dissertation examined the post-secondary review that took place in Newfoundland and Labrador in 2004–2005. Guided by the work of Foucault’s notion of governmentality and using a policy archeology case-based methodology, this study investigated the role interest groups played in public policy development and agenda-setting and the impact that it had on the form and function of the university. From a post-structural perspective, this study used the notion of the deconstruction of text to determine a counter history of knowledge and expanded this notion through the influence of Foucault on how power comes to be exercised in the public policy process. An overview of 5 post-secondary reviews that happened in Canadian provinces between 2004 and 2007 is provided. The study sets the framework for the case location, Newfoundland and Labrador, and the case university, Memorial University, by examining how public policy formulation took place in the province, what has influenced the political culture in the province over the past 100 years, and what reviews have taken place impacting the university over the past 30 years. The case study presented provides a unique example of a university–government relationship. The 2005 Foundations for Success: White Paper on Post-Secondary Education (Government of Newfoundland and Labrador [GNL], 2005c) that focused on the public college and university in Newfoundland and Labrador is reviewed, including all available submissions and consultation sessions and external documents from government, university, and the media around the same time period. Ultimately, the aim of the study was to provide an understanding of the dynamics of interest group behaviour and agenda-setting and its impact on the university.
Direct CP Violation in Charm Decays due to Left-Right Mixing
Creators: name: Chen, Chuan-Hung
name: Geng, Chao-Qiang
name: Wang, Wei
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Motivated by the $3.8σ$ deviation from no CP violation hypothesis for the CP asymmetry (CPA) difference between $D^0\to K^+ K^-$ and $D^0\to π^+ π^-$, reported recently by LHCb and CDF, we investigate the CP violating effect due to the left-right (LR) mixing in the general LR symmetric model. In particular, in the non-manifest LR model we show that the large CPA difference could be explained, while the constraints from $(ε'/ε)_K$ and $D^0$-$\bar D^0$ are satisfied.
description: 11 pages, 3 figures, references added
Predicting Survival in Oropharyngeal Squamous Cell Carcinoma (OPSCC): Measuring the Impact of the p16 Biomarker on Treatment Outcomes in Alberta
Creators: name: Hobbs, Amy
Publisher: name: Graduate Studies
Year: 2015
Subjects: subject: Epidemiology
subject: Medicine and Surgery
subject: Oncology
subject: Oropharyngeal Cancer
subject: Treatment Outcomes
subject: Human Papillomavirus
subject: Surgery
subject: Chemotherapy
subject: Radiation Therapy
subject: Survival

description: The incidence of tobacco and alcohol-associated oropharyngeal squamous cell carcinoma (OPSCC) is declining, while human papillomavirus-related OPSCC is increasing and demonstrates improved survival. This study examined demographic, clinical, and survival differences in patients with OPSCC, based on treatment modality, stratified by p16 status. We assembled a cohort of adult OPSCC patients diagnosed between 2000-2008 in Alberta. Tumour p16 status was measured using fluorescent immunohistochemistry. The cohort (N=357) was predominately male (78%, n=279), Stage III/IV (82%, n=294), and p16-positive (66%, n=76). Surgically-treated p16-negative patients showed significantly improved 5-year disease specific survival, compared to non-surgical, in an unadjusted Kaplan-Meier (56% vs. 19%, respectively; Log-rank test P=0.0415) and adjusted Cox analysis (HR: 0.28; 95% CI: 0.09-0.93; P=0.037). There were no significant differences between surgical and non-surgical treatment across all survival outcomes for p16-positive patients, or in overall or recurrence free survival for p16- negative patients. Patients with p16-negative tumours may benefit from multimodal primary surgical treatment.
Alvo em movimento: novos media e audiências
Creators: name: Ferreira, Paulo Jorge
Publisher: name: SOPCOM: Associação Portuguesa de Ciências da Comunicação
Year: 2005

description: Este paper é parte de um projecto de investigação em curso pela Unidade de Investigação CICANT da Universidade Lusófona de Humanidades e Tecnologias e de uma tese de mestrado pela Universidade Nova de Lisboa. Pretende-se responder à questão “Do que falamos quando falamos em audiências nos novos media.”
description: SOPCOM: Associação Portuguesa de Ciências da Comunicação, 2005: 4º SOPCOM: “Repensar os Media: Novos Contextos da Comunicação e da Informação”
Sirk e Fassbinder: o que é o melodrama?
Creators: name: Cordeiro, Edmundo
Publisher: name: SOPCOM: Associação Portuguesa de Ciências da Comunicação
Year: 2005

description: Como começar a pensar a noção de melodrama no cinema e como perspectivar a relação Sirk/Fassbinder por seu intermédio.
description: SOPCOM: Associação Portuguesa de Ciências da Comunicação, 2005: 4º SOPCOM: “Repensar os Media: Novos Contextos da Comunicação e da Informação”
title: Assistenz beim Einsatz von Aufklärungssensorik für die Crew eines Transporthelikopters in bemannt-unbemannten Multi-UAV Missionen
title: Gestaltung eines Automationssystems zur gezielten Reduktion der Mental Workload
titleType: AlternativeTitle
Creators: name: Ruf, Christian
name: Von Der Mülbe, Sophie
name: Stütz, Peter
Publisher: name: DuEPublico: Duisburg-Essen Publications Online, University of Duisburg-Essen, Germany
Year: 2017
Subjects: Cockpitautomation
Variable Automation
Aufklärungsautomation
Manned-Unmanned Teaming
Adaptive Assistenz
Assistenzsystem
Mensch-Maschine-System
Mensch-Maschine-Kooperation
Mental Workload

description: Dieser Beitrag beschreibt den methodischen Ansatz und skizziert die Umsetzung einer technischen Lösung, die mentale Beanspruchung eines Operateurs, welcher mit auf UAVs verteilten Missionssensoren die Aufklärung bodengebundener Bedrohungen durchzuführen hat, effektiv zu reduzieren. Im gegebenen Anwendungsszenario verfügt der Kommandant als Teil einer zwei-köpfigen Transporthelikoptercrew für die Missionsdurchführung über automatisierte Aufklärungskomponenten auf abgesetzten, unbemannten Sensorplattformen (UAVs) zu Zwecken der Eigensicherung. Im Fokus stehen die Vorabaufklärung von Routen und Gebieten, um so den eigenen Helikopter möglichst über aufgeklärtem Gebiet bewegen zu können. Aufgrund der Erweiterung des Aufgabenspektrums sowie des miteinhergehenden Mehraufwands beim Management des komplexen Einsatzes (Multi-UAV, Multi-Sensor) wird mit einem Anstieg der Arbeitsbelastung und der Beanspruchung im Cockpit gerechnet. In diesem Beitrag wird die analytische Betrachtung informationsverarbeitender kognitionspsychologischer Prozesse, welche beim Kommandant für die domänenspezifische Induktion des Konstrukts der mentalen Beanspruchung beim Tätigkeitsbereich der Vorabaufklärung verantwortlich sind, aufgezeigt. Zur Adressierung der Problematik wird die Gestaltung und Realisierung eines Automationssystems vorgestellt, welches durch die Anwendung des Prinzips der variablen Automationsgrade die Belastung sowie die Beanspruchung zu reduzieren versucht, indem das Kooperationsverhältnis zwischen Mensch und Maschine gezielt manipuliert wird.
Princípios de uma poética da tristeza do Cinema
Creators: name: Zagalo, Nelson
name: Barker, Anthony
name: Branco, Vasco
Publisher: name: SOPCOM: Associação Portuguesa de Ciências da Comunicação
Year: 2005

description: Vamos apresentar um estudo de poética fílmica, centrado nos princípios estruturantes da produção de emoção de tristeza no espectador, realizado sobre uma amostra de filmes de “cinema de entretenimento”, sobre os quais foram realizados estudos psicológicos empíricos (Gross and Levenson 1995) que comprovam a sua capacidade para o desenvolvimento da emoção especifica de tristeza no espectador. (...)
description: SOPCOM: Associação Portuguesa de Ciências da Comunicação, 2005: 4º SOPCOM: “Repensar os Media: Novos Contextos da Comunicação e da Informação”
Aproximación a la Historia, Literatura e Identidad de los Judíos Españoles de Bosnia
Creators: name: Spago, Daniela
Publisher: name: Graduate Studies
Year: 2013
Subjects: subject: Language and Literature
subject: Literature--Comparative
subject: Literature--Medieval
subject: History--Medieval
subject: Judeo-Spanish, history, Bosnia, Sarajevo, expulsion, 1492, identity

description: This thesis explores the life of the Sephardim of Sarajevo, since their arrival to Bosnia until their tragic annihilation by Nazis. The study emphasizes the relevance of this religious group for the economic development of both Medieval Spain and Ottoman Bosnia. The peaceful coexistence that defined these territories reveals a perspective of the Islamic rule in Europe as a distinctive period of interreligious inspiration. The role of women and the space of hamam are observed as crucial components of intercultural creativity. The rabbinic literature plays a significant role in the preservation of the Judeo-Spanish medieval identity. It is revealed that this form of narrative confines women to domestic space. The Sephardic narrative published at the beginning of the XX century is viewed as a form of recreation of the Judeo-Spanish memory. Therefore, the thesis depicts various methods of continuation and displacement of medieval identity of the Spanish Jews of Bosnia.
Os quatro filósofos de Roberto Rossellini
Creators: name: Pereira, Fausto Cruchinho Dias
Publisher: name: SOPCOM: Associação Portuguesa de Ciências da Comunicação
Year: 2005

description: Roberto Rossellini sempre proscreveu as ideias gerais, a "mensagem", a temática prévia ao trabalho da obra. Para ele, o neorrealismo foi mais uma posição moral do que um facto estético. O seu realismo, aquele que ele defende e que outros atacaram por não ser neo, consiste na identificação como por transmissão oculta dos movimentos de uma alma, ir sempre mais fundo na vida íntima de um ser e, por conseguinte, decantar o real, despojá-lo do seu luxo, cavá-lo até ao osso. Esta concepção da mise en scène permite-lhe uma leveza dos movimentos de câmara (pelo controlo do "zoom" Pancinor, Rossellini podia controlar o enquadramento, abrindo, fechando ou reenquadrando), composição dos planos sem definição fixa, desdém da montagem e, sobretudo, direcção de actores inimitável, pelo recurso à desdramatização total do seu jogo, à ausência de psicologia e ao recurso a actores ou figurantes anónimos desconhecidos ainda não corrompidos pelo vedetariado. (...)
description: SOPCOM: Associação Portuguesa de Ciências da Comunicação, 2005: 4º SOPCOM: “Repensar os Media: Novos Contextos da Comunicação e da Informação”
O primeiro Almodóvar e a paródia dos Media
Creators: name: Borges, Gabriela
Publisher: name: SOPCOM: Associação Portuguesa de Ciências da Comunicação
Year: 2005

description: Os filmes de Pedro Almodóvar realizados entre 1980 e 1995 apresentam um diálogo intersemiótico entre o cinema e a televisão e, principalmente, a utilização da paródia como um recurso criativo recorrente. Esta comunicação analisa a paródia da linguagem televisual na obra de Almodóvar como ferramenta para criticar e reflectir sobre a actuação dos media na sociedade contemporânea.
description: SOPCOM: Associação Portuguesa de Ciências da Comunicação, 2005: 4º SOPCOM: “Repensar os Media: Novos Contextos da Comunicação e da Informação”
Transition from columnar to point pinning in coated conductors: critical currents, that are independent of magnetic field direction
Creators: name: Zuev, Yuri L.
name: Wee, Sung Hun
name: Christen, David K.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We identify a phase transition in the vortex system of a high-temperature superconductor with nano-columnar stacks of precipitates as strong vortex pinning centers. Above a particular, temperature-dependent field $B_X(T)$ the vortex response is no longer determined by the nano-columns, and is instead determined by point-like pinning. This phase transition leads to the change in the measured critical current density as a function of angle between the applied magnetic field and the nano-columns. Below the unbinding, there is a strong maximum in $J_C$ when field is aligned parallel to the columns. Above the unbinding, there is a minimum for this orientation.
description: Formatted for APL
Frameworks to Develop Integrated STEM Curricula
Creators: name: Walker, William S.
name: Moore, Tamara J.
name: S. Selcen Guzey
name: Sorge, Brandon H.
Publisher: name: The Institute for the Promotion of Teaching Science and Technology (IPST), Ministry of Education
Year: 2018
Subjects: STEM education
integrated STEM
curriculum development

description: K-12 STEM Education, 4, 2 (April-June), 331-339
Delta-Sigma Based Transmitters for GHz Wireless Radio Systems
Creators: name: Ebrahimi, Mohammad Mojtaba
Publisher: name: Graduate Studies
Year: 2013
Subjects: subject: Engineering--Electronics and Electrical
subject: Delta-Sigma
subject: Power Amplifier
subject: Transmitter
subject: Efficiency
subject: Bandwidth

description: This dissertation was dedicated to improve the performance of the delta-sigma based transmitters in terms of efficiency and bandwidth without compromising signal quality. Delta-sigma based transmitter, consisted of two main blocks; delta-sigma modulator (DSM) and switching-mode power amplifier (SMPA), is one of the new promising techniques for wireless transmitters. To enhance the transmitter efficiency, the efficiency of the SMPA and the efficiency of the DSM were both addressed in this thesis. At first, by using class F and F-1 SMPAs was improved by proposing an analytical approach to decrease the output harmonic matching network loss. It was proven that, decreasing the width of the stubs minimizes the matching loss. The idea was tested by designing an inverse class F SMPA at 2.45 GHz, using a 10-Watt GaN transistor. It was also possible to increase the efficiency of the delta-sigma based transmitters by reducing the DSM’s quantization noise and improving its coding efficiency. Two signal processing techniques to reduce the quantization noise were proposed. In the first technique, conventional I/Q Cartesian DSMs were replaced by a complex DSM with a complex polar quantizer, resulting in a lower quantization noise and consequently higher efficiency. In the second technique, a part of out-of-band quantization noise was removed, resulting in a quasi-pulsed signal with lower noise and consequently better efficiency. These two techniques are also combined to further improve the efficiency. In the next step, the bandwidth enhancement in delta-sigma based transmitter was addressed. In the first technique, similarly to the noise reduction technique, in-band noise filtering is applied to reduce the in-band quantization noise and accordingly decrease the oversampling ratio required to achieve the desired signal quality. Another technique to reduce the DSM clock speed and increase the bandwidth is parallel processing. By employing a parallel processing technique based on time interleaving, the signal bandwidth of the DSM was increased without increasing the clock speed. Based on the proposed parallel DSMs, and the SMPA, an all-digital transmitter topology for SDR application was introduced and a three-step procedure for designing the transmitter’s parameters was proposed.
Optimal reducibility of all Stochastic Local Operation and Classical Communication equivalent W states
Creators: name: Rana, Swapan
name: Parashar, Preeti
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We show that all multipartite pure states that are SLOCC equivalent to the $N$-qubit $W$ state, can be uniquely determined (among arbitrary states) from their bipartite marginals. We also prove that only $(N-1)$ of the bipartite marginals are sufficient and this is also the optimal number. Thus, contrary to the $GHZ$ class, $W$-type states preserve their reducibility under SLOCC. We also study the optimal reducibility of some larger classes of states. The generic Dicke states $|GD_N^\ell\ran$ are shown to be optimally determined by their ($\ell+1$)-partite marginals. The class of `$G$' states (superposition of $W$ and $\bar{W}$) are shown to be optimally determined by just two $(N-2)$-partite marginals.
description: 8 pages (double column), 1 figure; accepted in Phys. Rev. A
A Systematic Review Concerning the Effects of Rational Emotive Behaviour Therapy Interventions
Creators: name: King, Ailish
Publisher: name: OSF Registries
Year: 2024
Subjects: subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology

description: The systematic review aims to review the effectiveness and efficacy of REBT interventions on irrational and/or rational beliefs and additional outcomes (e.g., mental health), synthesise and critique the quality existing interventions across domains (e.g., sport and exercise) and identify characteristics of successful REBT interventions. Databases will be searched for peer-reviewed articles describing REBT intervention studies which include a validated measure of irrational and/or rational beliefs. Data will be synthesised using a qualitative synthesis.
O imaginário do Cinema e a construção da Sociedade do Futuro: da esperança na Tecnociência ao medo do Apocalipse
Creators: name: Macedo, Lurdes
Publisher: name: SOPCOM: Associação Portuguesa de Ciências da Comunicação
Year: 2005

description: Expressões como “surto da apatia de massa” , “indiferença pósmoderna” e “deserção social” (Lipovetsky, 1983) ou “cidadania mutilada” e “individualismo exacerbado” (Petrella, 2002), são-nos propostas para caracterizar a condição humana contemporânea. Perante a descrição deste cenário de individualismo, absentismo e conformismo, coloca-se, então, uma questão essencial: como o Homem contemporâneo imagina a condição humana na sociedade do futuro? (...)
description: SOPCOM: Associação Portuguesa de Ciências da Comunicação, 2005: 4º SOPCOM: “Repensar os Media: Novos Contextos da Comunicação e da Informação”
MPEC 2023-X56 : 2023 XU
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2023 XU

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Chromatographic cell separation based on size and rigidity using dynamic microstructures
Creators: name: Gerhardt, Thomas
Publisher: name: University of British Columbia
Year: 2011

description: The separation of cells by phenotype from heterogeneous mixtures, such as whole blood, is important in a wide range of fields in medicine and biology. Cell separation methods can be classified as either chemical or physical. Chemical separation methods are based on affinity capture and flow cytometry to label and select for specific target cell species. These techniques can be limited by the lack of specific chemistry that uniquely select for the target cell types, including the inability to extract viable cells for propagation in culture. When chemical separation methods cannot be applied, it is sometimes possible to discriminate cells based on their physical properties. As material systems, cells have an enormous range in size and rigidity and these differences can be exploited to achieve separation. Recent advances in microfabrication and microfluidic technologies have presented several innovative methods to approach mechanical cell separation. Our research leverages key characteristics of microfluidic technologies to approach cell separation in a manner similar to liquid chromatography. In chromatography, target species are separated from mixtures by imparting different velocities based on interactions with the column. We apply this process to separate cells based on differences in their size and rigidity using a microfluidic channel with dynamic geometry. This channel is formed between a static surface, containing a series of traps, and a flexible membrane. The device is fabricated using standard microfabrication methods, including photolithography and multi-layer soft lithography. As the cell mixture is flowed through the channel, the height of the channel is varied repeatedly causing periodic entrapment of the larger and more rigid cells, which impart a reduced average velocity to these cells compared to smaller and more deformable cells. Using this technique, we demonstrated chromatographic separation of L5178Y mouse lymphoma cells, representing larger and more rigid species, from human red blood cells, representing smaller and less rigid species. The ratio of the velocities of the target versus background cell types depends upon the duty cycle of the oscillation. We demonstrate the accumulation of mouse lymphoma cells in the microfluidic channel while maintaining cell viability. The system is simple, low-cost and label free.
O Cinema Digital: uma transfiguração do real?
Creators: name: Gil, Inês
Publisher: name: SOPCOM: Associação Portuguesa de Ciências da Comunicação
Year: 2005

description: A técnica digital, que hoje faz parte integrante da imagem cinematográfica, limita-se na maior parte dos casos em produzir efeitos que inibem a narrativa. Sedutores para o olhar, a indústria usa-os ao máximo, reduzindo o cinema a um espectáculo, facilmente consumido, rapidamente assimilado e que se torna aditivo como qualquer produto artificial. Como Manovich o analisou, a evolução do cinema a partir da técnica digital tende para um novo media como, por exemplo, no caso de Time Code, realizado por Mike Figgis em 2000. (...)
description: SOPCOM: Associação Portuguesa de Ciências da Comunicação, 2005: 4º SOPCOM: “Repensar os Media: Novos Contextos da Comunicação e da Informação”
Finite-difference Simulation of Synthetic Microseismograms in the Presence of Anisotropy and Attenuation
Creators: name: Rashedi, Hoda
Publisher: name: Graduate Studies
Year: 2015
Subjects: subject: Education--Sciences
subject: Microseismic
subject: Synthetic data
subject: Anisotropy
subject: Moment Tensor
subject: Attenuation

description: This study presents a suite of 2D synthetic microseismic events computed using three velocity models, incorporating varying degrees of anisotropy and attenuation. An explicit second-order finite-difference method is used, capable of handling general anisotropy, up to triclinic symmetry. The microseismic source is specified as an arbitrary moment tensor, subject to be located in an isotropic layer. The anisotropy in our models is confined to VTI (Vertically Transverse Isotropic) media. Attenuation can be simulated for both isotropic and VTI medium, so the method is suited to modeling wave propagation in shale. All of the examples shown in this thesis are for a downhole acquisition geometry using a vertical monitor well. Care is required to avoid contamination of the synthetic data by edge reflections due to the ineffectiveness of currently known FD absorbing boundary for general anisotropy. Synthetic data (SEGY) are available for benchmarking purposes including hypocentre location, moment tensor inversion, etc.
Matrix: teoria geral e três casos práticos
Creators: name: Espanha, Rita
name: Poupinha, Luís
Publisher: name: SOPCOM: Associação Portuguesa de Ciências da Comunicação
Year: 2005

description: A partir das Ciências Sociais, genericamente, pode desde há muito ser concebido o modo como a realidade socialmente partilhada e construída define a teia de sentido, para usar a expressão de Geertz, na qual os indivíduos se encontram enredados. Lógico se torna que, com os processos de inter-subjectividade e reprodução, o conceito encontre demonstração no cinema. Uma análise comparada de três filmes, a partir de uma perspectiva livre, permitem também a identificação de uma recorrência desta denúncia irónica das matrizes-mundo, estruturas estruturantes e estruturadas que envolvem e são geradas em dados contextos históricos ao longo da história. Com esta comunicação, pretende-se identificar o modo como os autores destes três filmes focam abrangências diferenciadas, ao nível da referência geográfico-política da obra que constroem, assim como das realidades socioculturais a que se referem. Desta maneira, a ideia principal a ser demonstrada é que “The Matrix” é relativo a uma lógica genérica do funcionamento da sociedade. “Underground” e “Quiz Show” e “Wag the Dog” referem-se a processos localizados, embora metaforizados, de demonstração de realidade produzida, embora, e naturalmente, vivida em circunstâncias socio-culturais localizáveis. A comunicação é, deste modo, relativa aos processos metafóricos de demonstração da construção social da realidade, pela Comunicação, e respectiva desconstrução. (...)
description: SOPCOM: Associação Portuguesa de Ciências da Comunicação, 2005: 4º SOPCOM: “Repensar os Media: Novos Contextos da Comunicação e da Informação”
Jean François Lyotard e o cinema de experimentação
Creators: name: Domingues, José António
Publisher: name: SOPCOM: Associação Portuguesa de Ciências da Comunicação
Year: 2005

description: O objecto desta comunicação é o conceito de acinema, um tipo de exercício filosófico de Lyotard que pretende uma abertura aos movimentos que exploram a potencialidade do dispositivo e com os quais o cinema de experimentação tenta trabalhar – movimentos referidos à obra de Michael Snow, Wavelenght (1966-1967). (...)
description: SOPCOM: Associação Portuguesa de Ciências da Comunicação, 2005: 4º SOPCOM: “Repensar os Media: Novos Contextos da Comunicação e da Informação”
Diagnosing the top-quark angular asymmetry using LHC intrinsic charge asymmetries
Creators: name: Knapen, Simon
name: Zhao, Yue
name: Strassler, Matthew J.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Flavor-violating interactions involving new heavy particles are among proposed explanations for the $t\bar t$ forward-backward asymmetry observed at the Tevatron. Many of these models generate a $t\bar t$-plus-jet signal at the LHC. In this paper we identify several new charge asymmetric variables in $t\bar tj$ events that can contribute to the discovery of such models at the LHC. We propose a data-driven method for the background, largely eliminating the need for a Monte Carlo prediction of $t\bar t$-plus-jets, and thus reducing systematic errors. With a fast detector simulation, we estimate the statistical sensitivity of our variables for one of these models, finding that charge-asymmetric variables could materially assist in the exclusion of the Standard Model across much of the mass and coupling range, given 5 inverse fb of data. Should any signal appear, our variables will be useful in distinguishing classes of models from one another.
Pollinator Movement and Pollen Transfer in Hybrid Seed Canola
Creators: name: Waytes, Riley
Publisher: name: Graduate Studies
Year: 2017
Subjects: subject: Education--Agricultural
subject: Education--Sciences
subject: Ecology
subject: FOS: Biological sciences
subject: pollination
subject: canola
subject: animal behaviour
subject: plant-insect interactions
subject: agroecology

description: Production of hybrid seed canola requires the transfer of pollen from hermaphroditic (‘male’) to male-sterile (‘female’) plants, facilitated by managed pollinators (honey and leafcutter bees) and wild pollinators. I assessed pollinators in fields of hybrid seed canola located in Southern Alberta to determine what behaviours and conditions could enhance pollen transfer between male and female plants. I found that managed species were the most common pollinators, that all pollinators exhibited floral constancy to morph (male or female), and that pollinator type, time on flower, pollen on body, and flower of origin influenced pollination effectiveness. Pollinator movement between male and female flowers was positively affected by densities of conspecific pollinators, taxon richness, and relative floral profit. While hybrid seed canola morphs are sexually dimorphic, sufficient quantities of managed pollinators should reduce floral constancy. Wild pollinators can contribute to cross-pollination indirectly by increasing managed pollinator movement via increased diversity.
A Proof on Asymptotics of Wavelet Variance of a Long Memory Process by Using Taylor Expansion
Creators: name: You, Wonsang
name: Kordecki, Wojciech
Publisher: name: arXiv
Year: 2012
Subjects: subject: Other Statistics (stat.OT)
subject: FOS: Computer and information sciences

description: A long memory process has self-similarity or scale-invariant properties in low frequencies. We prove that the log of the scale-dependent wavelet variance for a long memory process is asymptotically proportional to scales by using the Taylor expansion of wavelet variances.
Douglas Sirk, Andy Wahrol e Corín Tellado: as presenças sempiternas na obra de Almodóvar
Creators: name: Tavares, Mirian Nogueira
Publisher: name: SOPCOM: Associação Portuguesa de Ciências da Comunicação
Year: 2005

description: Este trabalho pretende analisar as relações que a filmografia de Pedro Almodóvar mantém com a pintura, a literatura e o próprio cinema. Através dos conceitos de transtextualidade e hipertextualidade, procurarei desvendar em que medida a presença da cinematografia de Douglas Sirk, a arte de Andy Warhol e aquilo que se convencionou chamar sub- literatura, se constituem como parte fundamental da escritura fílmica do realizador manchego. Utilizando as palavras de seu alter-ego Patti Diphusa, uma sex symbol internacional ou famosa estrela de filmes pornográficos, como ela mesma se define, Pedro Almódovar disse que só podemos ser honestos se falarmos daquilo que melhor conhecemos: nós mesmos. A sua cinematografia, sem ser autobiográfica, é profundamente pessoal, construída a partir de textos que atravessaram o seu caminho ao longo do tempo. Desde sua infância – onde seu primeiro contacto com as grandes estrelas de Hollywood vai se dar através dos cromos que vinham em tabletes de chocolate, passando pela sua imersão no universo pop da movida madrilena, o realizador vai, paulatinamente, construindo seu universo fílmico. Um universo composto de fragmentos daquilo que ele viu e viveu.
description: SOPCOM: Associação Portuguesa de Ciências da Comunicação, 2005: 4º SOPCOM: “Repensar os Media: Novos Contextos da Comunicação e da Informação”