bluuebunny/crossref_metadata_2025 huggingface dataset:
Axial Angular Momentum of Bessel Light
Authors: Nairat Mazen
Published: August 2018

Both linear and angular momentum densities of Bessel, Gaussian-Bessel, and Hankel-Bessel lasers are determined. Angular momentum of the three Bessel beams is illustrated at linear and circular polarization. Axial Angular momentum is resolved in particular interpretation: the harmonic order of the physical light momentum. Full Text: PDF ReferencesG. Molina-Terriza, J. Torres, and L. Torner, "Twisted photons", Nature Physics 3, 305 - 310 (2007). CrossRef J Arlt, V Garces-Chavez, W Sibbett, and K Dholakia "Optical micromanipulation using a Bessel light beam", Opt. Commun., 197, 4-6, (2001). CrossRef L. Ambrosio and H. Hernández-Figueroa, "Gradient forces on double-negative particles in optical tweezers using Bessel beams in the ray optics regime", Opt Exp, 18, 23 (2010). CrossRef I. Litvin, A. Dudley and A. Forbes, "Poynting vector and orbital angular momentum density of superpositions of Bessel beams", Opt Exp, 19, 18 (2011). CrossRef K Volke-Sepulveda, V Garcés-Chávez, S Chávez-Cerda, J Arlt and K Dholakia "Orbital angular momentum of a high-order Bessel light beam" , JOP B 4 (2). 2002. CrossRef M. Verma, S. Pal, S. Joshi, P. Senthilkumaran, J. Joseph, and H Kandpal, "Singularities in cylindrical vector beams", Jou. of Mod. Opt., 62 (13), 2015. CrossRef R. Borghi, M. Santarsiero, and M. Porras, "Nonparaxial Bessel?Gauss beams", J. Opt. Soc. Am. A, 18 (7) (2011). CrossRef L. Allen, M. Beijersbergen, R. Spreeuw, and J. Woerdman, "Orbital angular momentum of light and the transformation of Laguerre-Gaussian Laser modes", Phys Rev A, 45 (11): 8185-8189 (1992). CrossRef D. Mcglion and K. Dholakia, "Bessel beams: diffraction in a new light", Cont. Phys, 46(1) 15 ? 28. (2005). CrossRef F. Gori, G. Guattari and C. Padovani," Bessel-Gauss Beams", Opt. Commun., 64, 491, (1987). CrossRef V. Kotlyar, A. Kovalev, and A. Soifer, "Hankel?Bessel laser beams" J. Opt. Soc. Am. A, 29 (5) (2012). CrossRef L. Allen and M. Babiker "Spin-orbit coupling in free-space Laguerre-Gaussian light beams", Phys. Rev. A 53, R2937. CrossRef
Gain-switched seed laser for Deep Space communication applications
Authors: Grześ Paweł , Michalska Maria , Świderski Jacek
Published: August 2018

Deep Space (DS) communication plays an important role in space exploration programs, especially in interplanetary flights projects. To resolve limitations of a well-known microwave link, an optical communication is considered. In the article a gain-switched seed laser for high power transmitter in a Master Oscillator Power Amplifier (MOPA) architecture is presented. This optical signal source is able to generate picosecond pulses on demand and is suitable for high speed data link over a long range. The laser is dedicated to the pulse position modulation (PPM) scheme for low power consuming, high capacity and energy efficient optical communication. Full Text: PDF ReferencesH. Hemmati, Deep Space Optical Communications (Jet Propulsion Laboratory 2005), John Wiley & Sons, 2006. CrossRef T. Tolker-Nielsen and G. Oppenhauser, “In-Orbit Test Result of an Operational Intersatellite Link between ARTEMIS and SPOT 4,” FreeSpace Laser Communication Technologies XIV, Proceedings of SPIE, vol. 4639, pp. 1–15, San Jose, California, January 2002. CrossRef D. M. Boroson, et al., "Overview and results of the Lunar Laser Communication Demonstration", Proc SPIE 8971, 89710S (2014). CrossRef D. M. Boroson, A. Biswas, B. L. Edwards, "MLCD: overview of NASA's Mars laser communications demonstration system", P. Soc. Photo-Opt. Ins. 5338 (2004). CrossRef H. Hemmati, A. Biswas, I. B. Djordjevic, "Deep-Space Optical Communications: Future Perspectives and Applications", Proc. of the IEEE 99.11, (2011). CrossRef H. Kaushal, G. Kaddoum, "Optical Communication in Space: Challenges and Mitigation Techniques", IEEE Commun Surv Tut. 19.1, 57 (2017). CrossRef B. Moision, J. Hamkins, M. Cheng, "Deep-space optical communications downlink budget: modulation and coding", IPN Prog. Rep. 42.154, 1 (2005). DirectLink
Direitos e responsabilidade pelo seu custeio: proposta para se analisar os custos da inserção no âmbito de uma sociedade democrática solidária
Authors: Matos Liliane Gonçalves , Sampaio Siqueira Natércia
Published: August 2018

O objetivo deste trabalho é analisar a decisão proferida pelo Supremo Tribunal Federal em sede de ADIN Nº 5357/DF quando se decidiu pela obrigatoriedade de as instituições privadas de ensino promoverem medidas necessárias para a adaptação de estudantes, com deficiência, de ensino básico sem que haja o devido repasse de custos aos pais daqueles que usufruírem delas, sob o enfoque da atribuição de responsabilidade social no custeio de direitos. Para tanto, fez-se uso de uma pesquisa descritiva-analítica sobre: a) a equidade referente às democracias, para o que a educação se mostra instrumento imprescindível para assegurar jutas oportunidades de preenchimento dos cargos e funções sociais; b) o modelo constitucional para o custeio dos direitos. Como resultado, verificou-se que a proibição de discriminar os estudantes que farão jus às medidas requisitadas tenderá a promover o incremento dos custos de transação, que serão absolvidos por todos os consumidores. Concluiu-se que as medidas de inclusão são de natureza de políticas públicas, de maneira que o seu custeio deve se dar pelo modelo constitucional de atribuição de responsabilidade pelo financiamento de direitos.
Linda Lê, On Writing and Not Writing
Authors: Barnes Leslie
Published: August 2018

Linda Lê has noted that writing shapes her identity more than any origins or affiliations, a knowledge which she claims allows her to occupy with ease the illegitimate spaces between homeland and adopted country, between belonging and unbelonging. But Lê’s work regularly stages the encounter between writing and not writing – juxtaposing the writer and the blank page, inspiration and silence – and figures the act of writing as a symbiotic relationship between a parasite and its host. This paper will examine these themes in two of Lê’s novels: Un si tendre vampire (1987) and Conte de l’amour bifrons (2005). Focusing on the figure of l’oiseau de mauvais augure and drawing on the dialogues between Lê and the silenced writers to whom she looks for inspiration in her nonfiction essays, I will present the inability to write not as the opposite of literary inspiration, but as it's double. The double is an equally recurrent image in Lê’s writing, often represented by the figure of Janus, or the God of beginnings and endings. I will suggest that the bird of ill omen is another Janus figure, the (imagined) presence who embodies both inspiration and its loss, and who is the necessary double within each writer.

Linda Lê prétend qu’écrire lui est plus cher que les origines or l’appartenance à une telle communauté, une attitude qui, selon elle, lui permet d’occuper aisément les espaces illégitimes entre le pays natal et le pays adopté, entre appartenir et non-appartenir. Mais dans ses écrits, elle met régulièrement en scène la rencontre entre écrire et ne pas écrire – juxtaposant l’écrivain et la page blanche, l’inspiration et le silence – et elle représente l’acte d’écrire comme un rapport symbiotique entre un parasite et son hôte. Dans cet article nous examinons ces thèmes dans deux romans de Lê : Un si tendre vampire (Table Ronde, 1987) et Conte de l’amour bifrons (Christian Bourgois, 2005). En nous penchant sur le personnage de l’oiseau de mauvais augureet en faisant appel aux dialogues dans ses essais de non-fiction entre l’auteur et les écrivains réduits au silence qui l’inspirent, nous suggérons que ne pas écrire n’est pas l’opposé d’écrire, mais son double. Le double est également omniprésent dans l’œuvre de Lê, souvent représenté par Janus Bifrons, le dieu des commencements et des fins. Dans son exploration métatextuelle du travail de l’écrivain, Lê dramatise la possibilité de ne pas écrire, paradoxalement garantissant l’acte d’écrire.
We are Vietnamese. A Reflection on Being Vietnamese-Australian
Authors: Pham Hoa
Published: August 2018

We are Vietnamese - A reflection on being Vietnamese-Australian is a creative non fiction piece concerning being a Vietnamese-Australian author in the present day. It explores Hoa’s meeting with Pham Thi Hoai, a Vietnamese author in exile in Berlin, and her encounters with Thich Nhat Hanh the Vietnamese Zen Master. It also interrogates the cultural perceptions of Vietnam in Australia and Hoa’s own subject position as a published Asian Australian author.

We are Vietnamese - A reflection on being Vietnamese-Australian est un essais sur ce que signifie être un auteur australo-vietnamien aujourd’hui. Il explore deux rencontres marquantes de l’auteure : l’une avec Pham Thi Hoai, une écrivaine vietnamienne en exile à Berlin, et l’autre avec Thich Nhat Hanh, le grand maître zen vietnamien. Il remet aussi en question les perceptions culturelles du Vietnam en Australie et la propre situation de Hoa en tant qu’auteure autralo-vietnamienne.
Transposing Gender in the Diaspora: Linda Lê’s Les aubes (2000) and In memoriam (2007)
Authors: Averis Kate
Published: August 2018

Linda Lê’s is one of the most resonant voices of the Vietnamese diaspora in Francophone writing, and her works are frequently read through the lens of exile and encounter with the other. While not engaging with explicit representations of the diasporic experience, Lê’s fictional and non-fictional texts are profoundly marked by the dislocation and alienation associated with the experience. This article considers the ways in which Linda Lê’s fictional writing surpasses the author’s own particular experience of the Vietnamese diaspora to offer a literary universe in which the disruptions of diaspora are expressed through the depiction of resistant modes of being and belonging. Focusing on two recent novels, Les aubes (2000) and In memoriam (2007), this article analyses Lê’s resistant construction of femininity, arguing that it is prompted and even enabled by the necessary transitions and transpositions of the diasporic experience. Through an examination of the sisterly solidarity, gender alterity and (in)corporeality that are foregrounded in these novels, the analysis explores Lê’s intratextual disruption of inherited models of femininity and modes of participation in domestic and sexual relationships, and draws a link with Lê’s extratextual literary universe to reveal the feminist ethics that underpins her resistance to gendered hierarchies.

La voix de Linda Lê est l’une des plus significatives de la diaspora vietnamienne dans la littérature francophone et ses œuvres sont fréquemment lues dans l’optique de l’exil et de la rencontre avec l’autre. En contournant la représentation explicite de l’expérience diasporique, ses textes autant fictionnels que non-fictionnels sont néanmoins profondément marqués par les ruptures et l’aliénation de cette expérience. Cet article examine la manière dont l’écriture fictionnelle de Linda Lê dépasse la propre expérience que l’auteure a fait de la diaspora vietnamienne, pour construire un univers littéraire dans lequel les heurts de l’expérience se traduisent par des modes d’être et d’appartenir contestataires. Tout en se concentrant sur la construction de la féminité résistante dans deux romans récents, Les aubes (2000) et In memoriam (2007), l’article avance l’idée que se sont les transitions et transpositions imposées par l’expérience diasporique qui l’ont rendue non seulement possible mais nécessaire. À travers l’étude de la solidarité sororale, l’altérité sexuelle et l’(in)corporéité au sein de ces deux romans, cet analyse explore d’une part la contestation des modèles hérités de la féminité, et de l’autre part, le refus de participer à des relations domestiques et sexuelles conventionnelles. En conclusion, il s’attache à démontrer comment ce lien entre les féminités contestataires de cette auteure singulière et son univers littéraire intertextuel participe d’une éthique féministe qui soustend la résistance aux hiérachies genrées.
After 'The Turn of the Screw' / Life’s a Peach Crónica
Authors: Chávez-Silverman Susana
Published: August 2018

Hace unos días, I watched “The Turn of the Screw.” Esa famosa versión I’d fetichized for years. Décadas, actually. Years ago mi estudiante Sasha Fariña (creo recordar que she was a CMC science student, enrolled in my Latin American poetry seminar) fisgó en el internido y teorizó que it had actually been a TV special. Me acuerdo que that didn’t sound right to me, and I let it drift back down hacia el ether del olvido. Pero después de trabajar todo el santo día en Operasie Restorasie (as Wim baptised my writing process para Our Ubuntu, Montenegro) me sentí bien burnt out and in the invisible linksy way of things de repente on a whim hice Google el film--for the millionth time. Esta vez, instead of the myriad other versions que siempre he descartado al tiro al ver el cast o el año (“The Innocents” con la Deborah Kerr es bien spooky, pero way too early; la 1999 version con la sublime Jodhi May también es buena, pero too late), bingo, this could be it, me dije.
A physics-based approach to oversample multi-satellite,
multi-species observations to a common grid
Authors: Sun Kang , Zhu Lei , Cady-Pereira Karen , Chan Miller Christopher , Chance Kelly , Clarisse Lieven , Coheur Pierre-François , Gonzalez Abad Gonzalo , Huang Guanyu , Liu Xiong , Van Damme Martin , Yang Kai , Zondlo Mark
Published: August 2018

Abstract. Satellite remote sensing of the Earth's atmospheric composition usually samples irregularly in space and time, and many applications require spatially and temporally averaging the satellite observations (Level 2) to a regular grid (Level 3). When averaging Level 2 data over a long time period to a target Level 3 grid significantly finer than Level 2 pixels, this process is referred to as "oversampling'". An agile, physics-based oversampling approach is developed to represent each satellite observation as a sensitivity distribution on the ground, instead of a point or a polygon as assumed in previous approaches. This sensitivity distribution can be determined by the spatial response function of each satellite sensor. A generalized 2-D super Gaussian function is proposed to characterize the spatial response functions of both imaging grating spectrometers (e.g., OMI, OMPS, and TROPOMI) and scanning Fourier transform spectrometers (e.g., GOSAT, IASI and CrIS). Synthetic OMI and IASI observations were generated to compare the errors due to simplifying satellite fields of view (FOV) as polygons (tessellation error) and the errors due to discretizing the smooth spatial response function on a finite grid (discretization error). The balance between these two error sources depends on the target grid resolution, the ground size of FOV, and the smoothness of spatial response functions. Explicit consideration of the spatial response function is favorable for high resolution oversampling and smoother spatial response. For OMI, it is beneficial to oversample using the spatial response functions for grid resolutions finer than ~16 km. The generalized 2-D super Gaussian function also enables smoothing of the Level 3 results by decreasing the shape-determining exponents, useful for high noise level or sparse satellite datasets. This physical oversampling is applied to OMI NO2 products and IASI NH3 products, showing substantially improved visualization of trace gas distribution and local gradients.
Creating a proof-of-concept climate service to assess future renewable energy mixes in Europe: An overview of the C3S ECEM project
Authors: Troccoli Alberto , Goodess Clare , Jones Phil , Penny Lesley , Dorling Steve , Harpham Colin , Dubus Laurent , Parey Sylvie , Claudel Sandra , Khong Duc-Huy , Bett Philip E. , Thornton Hazel , Ranchin Thierry , Wald Lucien , Saint-Drenan Yves-Marie , De Felice Matteo , Brayshaw David , Suckling Emma , Percy Barbara , Blower Jon
Published: August 2018

Abstract. The EU Copernicus Climate Change Service (C3S) European Climatic Energy Mixes (ECEM) has produced, in close collaboration with prospective users, a proof-of-concept climate service, or Demonstrator, designed to enable the energy industry and policy makers assess how well different energy supply mixes in Europe will meet demand, over different time horizons (from seasonal to long-term decadal planning), focusing on the role climate has on the mixes. The concept of C3S ECEM, its methodology and some results are presented here. The first part focuses on the construction of reference data sets for climate variables based on the ERA-Interim reanalysis. Subsequently, energy variables were created by transforming the bias-adjusted climate variables using a combination of statistical and physically-based models. A comprehensive set of measured energy supply and demand data was also collected, in order to assess the robustness of the conversion to energy variables. Climate and energy data have been produced both for the historical period (1979–2016) and for future projections (from 1981 to 2100, to also include a past reference period, but focusing on the 30 year period 2035–2065). The skill of current seasonal forecast systems for climate and energy variables has also been assessed. The C3S ECEM project was designed to provide ample opportunities for stakeholders to convey their needs and expectations, and assist in the development of a suitable Demonstrator. This is the tool that collects the output produced by C3S ECEM and presents it in a user-friendly and interactive format, and it therefore constitutes the essence of the C3S ECEM proof-of-concept climate service.
TPVTrack v1.0: A watershed segmentation and overlap
correspondence method for tracking tropopause polar vortices
Authors: Szapiro Nicholas , Cavallo Steven
Published: August 2018

Abstract. A new modular, free software package is described for tracking tropopause polar vortices (TPVs) natively on structured or unstructured grids. Motivated by limitations in spatial characterization and time tracking within existing approaches, TPVTrack leverages the dynamics of TPVs to represent their (1) spatial structure, with variable shapes and intensities and (2) time evolution, with mergers and splits. TPVs are segmented from the gridded flow field into spatial objects as restricted regional watershed basins on the tropopause, described by geometric metrics, associated over time by overlap similarity into major and minor correspondences, and tracked along major correspondences. Simplified segmentation and correspondence test cases illustrate some of the appeal, sensitivities, and limitations of TPVTrack, including effective representation of spatial shape and reduced false positive associations in time. Tracked TPVs in more realistic historical conditions are consistent in bulk with expectations of life cycle and mean structure. Individual tracks are less reliable when discriminating between multiple overlaps. Modifications to track other physical features are possible, with each application requiring evaluation.
Precipitation characteristics and associated weather conditions on the eastern slopes of the Canadian Rockies during March–April 2015
Authors: Thériault Julie M. , Hung Ida , Vaquer Paul , Stewart Ronald E. , Pomeroy John W.
Published: August 2018

Abstract. Precipitation events that bring rain and snow to the
Banff–Calgary area of Alberta are a critical aspect of the region's water
cycle and can lead to major flooding events such as the June 2013 event that
was the second most costly natural disaster in Canadian history. Because no
special atmospheric-oriented observations of these events have been made, a
field experiment was conducted in March and April 2015 in Kananaskis,
Alberta, to begin to fill this gap. The goal was to characterize and better
understand the formation of the precipitation at the surface during
spring 2015 at a specific location in the Kananaskis Valley. Within the
experiment, detailed measurements of precipitation and weather conditions
were obtained, a vertically pointing Doppler radar was deployed and weather
balloons were released. Although 17 precipitation events occurred, this
period was associated with much less precipitation than normal (−35 %)
and above-normal temperatures (2.5 ∘C). Of the 133 h of observed
precipitation, solid precipitation occurred 71 % of the time, mixed
precipitation occurred 9 % and rain occurred 20 %. An analysis of
17 504 precipitation particles from 1181 images showed that a wide variety
of crystals and aggregates occurred and approximately 63 % showed signs of
riming. This was largely independent of whether flows aloft were upslope
(easterly) or downslope (westerly). In the often sub-saturated surface
conditions, hydrometeors containing ice occurred at temperatures as high as
9 ∘C. Radar structures aloft were highly variable with reflectivity
sometimes >30 dBZe and Doppler velocity up to −1 m s−1, which
indicates upward motion of particles within ascending air masses.
Precipitation was formed in this region within cloud fields sometimes having
variable structures and within which supercooled water at least sometimes
existed to produce accreted particles massive enough to reach the surface
through the relatively dry sub-cloud region.
Editorial
Authors: Moreton-Robinson Aileen , Walter Maggie
Published: August 2018

Welcome to the inaugural edition of this new scholarly publication, The International Journal of Critical Indigenous Studies. Instigated and conceptualized by Aileen Moreton Robinson this first issue is the culmination of a substantial endeavour to deliver an Indigenous centred scholarly journal.We perceive the epistemological boundaries of Critical Indigenous Studies as marked by analyses of contemporary colonising power in its multiple forms in different contexts. This first issue brings together a diverse group of international Indigenous scholars who are politically and intellectually engaged in theorising from their respective standpoints as well as spatial and geographic locations. As such these essays enable dialogue across and within different colonial power contexts addressing epistemological ethical and methodological concerns within the broad field of Indigenous studies. In each essay a connecting theme is the need for intercultural and comparative work and to import Indigenous agency in the writing of history.
Ethics of Intercultural Approaches to Indigenous Studies
Authors: Salaita Steven
Published: August 2018

Salaita argues that the project of Indigenous Studies is inherently comparative, citing numerous examples of productive intercultural scholarship, he explores historical, cultural, and politicalrelationships among Native North Americans and Palestinian Arabs to illuminate some of the ways that comparison offers the potential for new directions in both scholarly and activist communities. He contextualizes this analysis with a broader discussion of the ethics of scholarship in Indigenous Studies, paying special attention to the relationship of nationalistic commitment to intercultural methodologies.
FANON IN THE ANDES
Authors: Lucero Jose Antonio
Published: August 2018

In the rise of contemporary indigenous movements in Latin America, indigenous leaders have acknowledged their debt to the Bolivian indigenous intellectual Fausto Reinaga (1906-1994), a major theorist of the anti-colonial and anti-Occidental ideology known as indianisimo. His work, especially his 1969 classic La revolución india had a profound impact on the development of indigenous movements, intellectuals, and leaders including Bolivian President Evo Morales. Yet, curiously, his work remains sorely understudied. This essay examines the continuing relevance of Reinaga by exploring his ‘Atlantic’ encounter with the thought of the Martinican-Algerian theorist Frantz Fanon. Reinaga’s encounter with Fanon, however, is not an unproblematic one and there are instructive commonalities and tensions in their work. This article addresses Fanon’s influence on Reinaga’s views on colonialism, compares Fanon’s and Reinaga’s deployments of the concept of race, and contrasts their views on postcolonial nation-building. Though in some ways Fanon is more attentive to the complexities and tensions of anticolonial struggles than Reinaga, I argue that the work of Reinaga can be read in a Fanonian spirit, as a dialectical analysis in which the focus on the particular is necessary for universal projects of emancipation.
From Place to Territories and Back Again
Authors: Goeman Mishuana
Published: August 2018

This article explores the geopolitical importance of the word “land” to the field of Indigenous studies. Rather than simply take the word “land” as a given and natural element of the world around us, in this article I suggest a closer interrogation of the multiple social and geopolitical meanings that make land a key concept in indigenous political struggle. The processes of colonialism and neocolonialism resulted in abstracting land as part of making nations that are recognized by the liberal settler nation-states. How have concepts of land changed in this process? How do we make Indigenous spaces that are not based on abstracting land and Indigenous bodies into state spaces, while maintaining political vitality? How are the lived realities of Indigenous peoples impacted by concepts of borders and territories that support the power of the nation-state? I draw on the narrative dimensions of land in the work of Indigenous writers in order to intercede in limiting the meanings of land to those mapped by the state.
Personalising the History Wars
Authors: Walter Maggie , Daniels Louise
Published: August 2018

Warriors in the history wars’ do battle over the accuracy and portrayal of Aboriginal history in Tasmania, but for the descendants of the traditional people this contested field is also the site of our families’ stories. This paper juxtaposes, via the woven narrative of Woretemoeteryenner, a personal perspective against the history wars sterile dissection of official records. Woretemoeteryenner’s story serves as a personalising frame for Tasmanian colonial history. Born before the beginning of European colonisation, by the end of her life fewer than 50 traditional Tasmanians remained. Her story also shines a light on the lived experiences of that small group of Aboriginal women who form the link between the traditional people and present Tasmanian Aboriginal communities. Most critically, Woretemoeteryenner’s life is a personal story of a life lived through these now disputed and debated times.
Shark, Remora and Aboriginal History
Authors: Maynard John
Published: August 2018

This paper has two clearly divided sections – the first will explore the concept of colonial history as a metaphor- likened to a cruising shark. The domain of this powerful shark is the oceans of history – its practice, understanding, delivery and ownership. The second part of the paper will examine two aspects of Keith Windschuttle’s book The Fabrication of Aboriginal history with which I take issue namely the massacre at Risdon Cove in 1804 and secondly, Windschuttle’s denigrating and uninformed appraisal of the relationship between Aboriginal men and women. I will state upfront that it is Windschuttle's blinding faith in the objectivity of the empirical record that is his Achilles heel. He does not recognise or consider that the archival record can be biased or recorded by those with a vested interest. This sort of naïve historical understanding is seriously flawed.
Rebuilding Native Nations
Authors: Frederics Bronwyn
Published: August 2018

This book covers work undertaken over the last 20 years by a diverse range of researchers, nations and communities and is produced by the Harvard Project on American Indian Economic Development and the Native Nations Institute for Leadership, Management, and Policy at the University of Arizona. The book according to Stephen Cornell came from the response to numerous requests for a resource about rebuilding Indigenous governments, launching nation-owned and citizen entrepreneurs, building sustainable Indigenous economies and developing new relationships with governments (University of Arizona).
La generación de conocimiento en Trabajo Social: percepción de graduadas y graduadas de dos programas de Magíster en Trabajo Social de Chile
Authors: Figueroa Reyes Yenny Edith
Published: August 2018

El presente artículo da cuenta de uno de los ámbitos abordado en la investigación que buscaba describir por una parte las prácticas investigativas y el tipo de conocimiento generado a través de las tesis de postgrado, así como la percepción que tienen del aporte de su investigación de postgrado en la generación de conocimiento para la disciplina y para las políticas sociales. Se consideró el caso del Magister de Trabajo Social y Políticas Sociales (MTSPS) de la Universidad de Concepción y del Magister en Trabajo Social (MTS) de la Pontificia Universidad Católica de Chile. La investigación se centra tanto en los trabajos de grado como en los propios graduados  de los últimos 10 años (2005 a 2014) de ambos programas, así como en los documentos de tesis. La muestra final resultó de 32 (MTSPS) y 28 (MTS) graduados, fue una muestra de tipo accidental dado que se envió el instrumento al grupo total;  para la selección de tesis, se eligió una muestra probabilística simple de 40 casos en cada programa; para el análisis de las prácticas investigativas, derivada de las tesis de grado, se elaboró una matriz de análisis y para la medición de las variables asociadas a las miradas de los graduados acerca de su trabajo de investigación,  se utilizó la encuesta en su modalidad on-line. Los principales resultados indican una percepción positiva del impacto de sus trabajos de investigación en la política y el trabajo social, sin embargo en la práctica indican insuficiente publicación y/o seguimiento de la utilización del conocimiento generado en estos trabajos de postgrado.
El Orgullo en Trabajo Social: Mujer, poder, conocimiento y profesión
Authors: Martín Estalayo Maribel
Published: August 2018

El siguiente artículo es una relectura de la historia del Trabajo Social en España a partir de los hilvanes que se pueden reconocer en la configuración de la profesión y la disciplina. Arte/tékhne, transición y ciencia/episteme, componen los tres momentos históricos por los que transita la joven disciplina del Trabajo Social en nuestro país. Mujer, poder, conocimiento y profesión son los hilvanes que sujetan esa historia y lucha colectiva por el lugar y la valoración en la sociedad y entre las disciplinas sociales. El objetivo principal que atraviesa estas páginas persigue un ejercicio retrospectivo como modo necesario para vivir la identidad profesional con orgullo; esto es, reunir, expresar, celebrar y mantener una autoestima adecuada que ayude a las trabajadoras sociales a enfrentar los desafíos actuales en el campo académico y en el campo profesional.
El Parménides de Platón y la comprensión del Uno en la filosofía de Plotino: ¿un olvido de Heidegger?
Authors: Hermoso Félix María Jesús
Published: August 2018

El presente artículo se centra en el estudio de la exégesis que lleva a cabo Plotino en torno a la significación de la inefabilidad del uno, planteada en el Parménides platónico al hilo de la primera hipótesis. Este ubica a este primer uno inefable en el centro mismo de su sistema, lo que tendrá fuertes implicaciones tanto a nivel ontológico como por lo que respecta a la comprensión del lenguaje. la concepción de la realidad que se deriva de esta inefabilidad del primer principio, de un lado, y las implicaciones en la naturaleza del lenguaje filosófico que abre este postulado, de otro, ocuparán la centralidad de nuestras reflexiones. Atenderemos a los textos originales en los que se plantea la cuestión, apoyándonos en la labor de la crítica, discutiendo los puntos fundamentales a fin de esclarecer la posición que encontramos en las Enéadas. Tomaremos, asimismo, en consideración la actualidad que tiene esta posición y su capacidad de ir más allá de la crítica heideggeriana a la metafísica.
ALFABETIZAÇÃO E INCLUSÃO DIGITAL DE JOVENS E ADULTOS, COM O CÓDIGO DO TRÂNSITO BRASILEIRO COMO TEMA GERADOR
Authors: Sant´Ana Ruth Bernardes de , Dias Daniel Wiler
Published: August 2018

O artigo trata de um curso de alfabetização de adultos, que buscou integrar elementos da pedagogia de Paulo Freire com o conhecimento de TICs (Tecnologias de Informação e Comunicação), tendo como tema gerador do conhecimento o Código do Trânsito Brasileiro (CTB). O objetivo central consistiu na ampliação dos níveis de alfabetização/letramento de adultos dos setores populares, a fim de que estes desenvolvessem competências muito dependentes da leitura e compreensão de texto, tal como a obtenção da CNH (Carteira Nacional de Habilitação). As dificuldades de uma proposta pedagógica muito condicionada às TICs, baseada no “aprender a aprender” e na exigência de que o aluno estude o material em casa, é o principal elemento que problematizamos aqui.Palavras-chave: Educação, Adultos, Pedagogia de Paulo Freire, TICs.
GÊNERO, SEXUALIDADE E FORMAÇÃO DE PROFESSORES: UMA ANÁLISE A PARTIR DA PRODUÇÃO ACADÊMICA DA ANPED
Authors: Dal'Igna Maria Cláudia , Scherer Renata Porcher , Cruz Éderson da
Published: August 2018

Este artigo apresenta e discute os resultados de uma análise realizada a partir da produção acadêmica de uma importante associação de pesquisa em educação do Brasil, a ANPEd, desenvolvida por pesquisadoras e pesquisadores vinculados ao GT 23: Gênero, Sexualidade e Educação. Tal análise foi elaborada para subsidiar pesquisas vinculadas a um Programa de Pós-Graduação em Educação. A partir dessa produção, tomando como referencial teórico os Estudos de Gênero e os Estudos Foucaultianos, o presente artigo examina 25 trabalhos apresentados em reuniões anuais, entre 2004 e 2014. Essa análise possibilita refletir sobre os modos como gênero e sexualidade são abordados ao focalizar a formação de professores, e oferece contribuições para que se possa construir e delimitar futuros problemas de pesquisa sobre esses temas.Palavras-chave: gênero; sexualidade; formação de professores; ANPEd.
Estudo do teor de substituição de agregado miúdo por resíduo de borracha em argamassa de cimento e cal [Study of the replacement content of small aggregate by rubber residue in cement and lime mortar]
Authors: Navarini Kurz Mônica , Marcelo Paliga Charlei , Da Silva Torres Ariela
Published: August 2018

O setor da construção civil vem absorvendo resíduos e transformando-os em componentes para utilização nas construções, especialmente através da incorporação em materiais como argamassas e concretos. Com o crescente número de veículos automotivos, ocorreu um aumento na produção de pneus e, consequentemente, de seus resíduos. Portanto, o presente estudo tem o objetivo de avaliar o melhor teor de substituição de agregado miúdo por resíduo de borracha em argamassa de cimento e cal, a partir da comparação com uma argamassa de referência, analisando o comportamento físico e mecânico. Para verificar a melhor relação de substituição, os ensaios foram realizados em argamassa referência (traço 1:2:9) e em argamassas com resíduos nas proporções de 2,5%, 5%, 10% e 15% de substituição de areia por borracha. Para caracterização das argamassas foram realizados ensaios de índice de consistência, resistência à compressão axial, resistência à tração por compressão diametral, absorção por capilaridade e absorção por imersão. Os resultados indicam que nas argamassas com resíduo ocorreu um aumento na relação a/c para se manter a trabalhabilidade e um decréscimo nas resistências. Além de, uma diminuição na absorção por capilaridade e um aumento na absorção por imersão. Apesar de provocar mudanças no comportamento da argamassa, aponta-se o uso desse resíduo como alternativa viável, tanto ambiental quanto de desempenho.
Abstract
The construction industry has been absorbing and transforming them into components for use in construction, especially through the incorporation of materials such as mortars and concretes. With the increasing number of automotive vehicles, there has been an increase in the production of tires and, consequently, of their waste. Therefore, the present study has the objective of evaluating the best content of substitution of small aggregate by rubber residue in cement and lime mortar, from the comparison with a reference mortar, analyzing the physical and mechanical behavior. To verify the best substitution ratio, the tests were performed in reference mortar (trace 1:2:9) and mortar with residuals in the proportions of 2.5%, 5%, 10% and 15% of Sand for rubber. To characterize the mortars, tests of consistency index, axial compression strength, tensile strength by diametrical compression, capillary absorption and immersion absorption were performed. The results indicate that in the mortars with residue an increase in the w/c ratio was observed to maintain the workability and a decrease in the resistances. In addition to, a decrease in capillary absorption and an increase in absorption by immersion. Although it causes changes in mortar behavior, the use of this residue is indicated as a viable alternative, both environmental and performance.
Utilização de resíduos industriais para produção de concreto sustentável [Use of industrial waste for the production of sustainable concrete]
Authors: Pedro Lopes João , Rudnick Thainá , Humberto Martins Carlos
Published: August 2018

O presente trabalho busca avaliar a substituição parcial dos agregados do concreto, segundo material mais utilizado pelo homem, por materiais até então descartados (resíduos). Os resíduos propostos para tais substituições foram: a cinza gerada pela queima do bagaço da cana-de-açúcar (CBC), substituindo em 30% a areia e os resíduos da construção civil (RCC), substituindo em 30% a brita. Os resíduos foram escolhidos devido a sua granulometria semelhante aos materiais convencionais. Foram fabricados corpos de prova para 4 traços diferentes, sendo um traço referência que contém cimento, areia, brita e água, dois traços com substituições somente da CBC e outro somente com RCC e o traço mais significativo para a pesquisa contendo as duas substituições. Para a avaliação do desempenho dos traços, realizou-se ensaios para caracterização dos materiais, ensaios de resistência à compressão aos 7, 28 e 56 dias, resistência à tração por compressão diametral aos 28 dias e absorção de água aos 28 dias. Os resultados obtidos atestam a viabilidade das substituições, sendo que se obteve características muito próximas dos concretos com adição dos resíduos de CBC e RCC quando comparadas ao concreto convencional, resultando em um concreto de grande aceitabilidade por ser ambientalmente correto, economicamente viável e socialmente aceito.
Abstract
The present paper seeks to replace partially the aggregates of concrete, the second most used material, for materials that were wasted until then. The wastes proposed for the substitutions were: the ashes generated by the sugar cane bagasse burning, replacing in 30% the sand and the civil construction wastes, substituting the gravel in 30%. The wastes were chosen due to their similar granulometry to the conventional materials. Specimens were fabricated to four different recipes of concrete, being the reference only with the conventional materials, two of them with isolated substitutions and the recipe of concrete more significant to the research which contains both replacements. For the evaluation of concrete performance, trials were performed for materials characterization, compression resistance at day 7, 28 and 56 of the experience, resistance to diametral traction at day 28 and water absorption at day 28. The results attest the viability of the substitutions, provided that similar features were obtained when compared to traditional concrete, resulting in a concrete with acceptability for being environmentally correct, economically viable and socially accepted.
Estudo de viabilidade técnica do fosfogesso hemidratado para aplicação em sistema de cobertura de aterros sanitários [Study of the phosphogypsum hemidrate for application in a landfill cover system]
Authors: Eliatan da Silva Ribeiro Matheus , Maria dos Anjos Mascarenha Márcia , Lopes dos Santos Thiago
Published: August 2018

O fosfogesso (CaSO4.nH2O) é um subproduto formado a partir da produção industrial de fertilizantes, no entanto esse material é considerado um passivo ambiental. Este estudo visa aplicar o fosfogesso, em sua forma hemidratada, em camadas finais de cobertura de aterros sanitários, em misturas com solo e aditivos bentoníticos. Para tal análise, as amostras foram submetidas a estudos de caracterização física e ensaios de permeabilidade para duas energias de compactação. Logo após foi executado uma simulação de variações sazonais por umedecimento e ressecamento para verificar possíveis interferências no comportamento hidromecânico. Também foi realizada uma estimativa matemática empírica para determinação da permeabilidade. Nesse estudo, a amostra com 6% de aditivo bentonítico compactada na energia Proctor Normal apresentou uma permeabilidade similar à amostra com 0% de aditivo bentonítico compactada na energia Proctor Intermediária e ambas dentro da faixa aceitável para aplicação em camadas de cobertura e barreira hidráulica. O solo também apresentou baixa permeabilidade em Proctor Intermediária, mas sofreu maiores alterações hidromecânicas durante os ciclos sazonais. A formulação empírica se mostrou aplicável a amostras lateríticas independentemente de sua variação na composição, mas quando a energia de compactação foi modificada a mesma equação não se aplicou, sendo necessário realizar outra adaptação matemática.
Abstract
The phosphogypsum (CaSO4.nH2O) is a by-product from the industrial production of fertilizers, however this material is considered an environmental passive. This study aims to apply the hemidrate phosphogypsum to final layers of landfill cover, in soil mixtures and bentonite additives. For this analysis, were carried out, in these materials, studies of physical characterization and permeability tests for two compaction energies. Afterwards a simulation of seasonal variations was performed through wetting and drying cycles to verify possible interferences in the hydro mechanical behavior of the materials. An empirical mathematical estimate was made to determine the permeability. In this study, the sample with 6% of bentonite additive in the Reduced Proctor Energy presented a permeability similar to the sample with 0% of bentonite additive compacted in the Standard Proctor Energy and both within the acceptable range for application in cover layers and hydraulic barrier. The soil also presented low permeability in the Standard Proctor, but underwent major hydromechanical changes during the seasonal cycles. The empirical formulation was applicable to lateritic samples regardless of their variation in composition, but when the compaction energy was modified the same equation was not applied and it is necessary to make another mathematical adaptation.
AVALIAÇÃO DA RESISTÊNCIA DE CONSOLOS DE CONCRETO MOLDADOS EM DUAS ETAPAS COM A UTILIZAÇÃO DE PROTENSÃO NÃO ADERENTE [ Strength assessment of concrete corbels cast in two steps using unbonded post-tensioning ]
Authors: Chagas Luiz Guilherme Mendonça , Nogueira Izadora Ferreira , Júnior Luiz Álvaro Oliveira , Araújo Daniel Lima
Published: August 2018

RESUMO: Uma das principais vantagens das estruturas de concreto pré-moldado é a rapidez da execução. Essa vantagem pode ser ainda mais evidenciada se peças como pilares com consolos puderem ser produzidas de forma ainda mais ágil. Este artigo apresenta os resultados de uma pesquisa experimental em consolos curtos de concreto pré-moldado. Os consolos são pré-moldados separadamente do pilar e unidos ao mesmo mediante encaixe e protensão não aderente. Para isso, foram confeccionados três modelos formados por um pilar e dois consolos simétricos, todos pré-moldados, sendo que a ruína se deu por fendilhamento do concreto dos consolos. Os resultados também apontaram que a tipologia de consolo proposta apresentou capacidade resistente apenas 5% menor que do consolo monolítico de referência. Por outro lado, a tipologia de consolo proposta neste trabalho proporcionou capacidade resistente consideravelmente superior à encontrada para a tipologia de consolo moldado em duas etapas sem o uso de protensão.ABSTRACT: One of the key advantages of precast concrete structures is the speed of construction. This advantage can be further evidenced if elements like columns with corbels could be produced in an even more agile way. This paper presents the results of an experimental research on short precast concrete corbels. Corbels are precast separately of the column and then joined to it by means of socked and unbonded post-tensioning. For this, three models composed by a column and two symmetric corbels, all of them precast, were produced, being their failure defined by splitting of concrete in corbels. Results also demonstrated that the proposed typology of corbel presented strength merely 5% lower than the reference monolithic corbel. In the other hand, the proposed typology of corbel provided strength significantly greater than that found for corbel cast in two steps without prestressing.
MAPEAMENTO LITERÁRIO SOBRE O MICROCONCRETO [ Mapping study of the microconcrete ]
Authors: Silva Reginaldo Virgilio da , Bacarji Edgar , Cascudo Oswaldo
Published: August 2018

RESUMO: O microconcreto pode ser definido como um tipo específico de concreto em que o agregado tem dimensão máxima de 6,4 mm, podendo ser utilizado na pré-fabricação leve, ou seja, em elementos estruturais de seção transversal reduzida. Foi realizado um mapeamento literário sobre o tema microconcreto, no qual se levantaram artigos relacionados ao assunto nas bases Engineering village, Science direct, Web of science e Scopus, tendo sido realizada uma análise bibliométrica e qualitativa, com o intuito de demonstrar a importância do tema para a comunidade científica, de apresentar a relevância do assunto na atualidade, de identificar as lacunas de conhecimento ainda pouco exploradas e de apresentar como se deu o desenvolvimento dos temas de pesquisas ao longo dos anos. A pesquisa tem o intuito de servir como parâmetro para futuros pesquisadores seguirem como ponto de partida, no aprofundamento de estudos na linha de microconcretos. ABSTRACT: The microconcrete can be defined as a specific type of concrete in which the aggregate has a maximum dimension of 6.4 mm and can be used in light prefabrication, that is, in structural elements of reduced cross-section. A literary mapping on the microconcrete theme was carried out, in which articles related to the subject were obtained from the following bases: Engineering village, Science direct, Web of science and Scopus. By means of this mapping, it was performed a bibliometric and qualitative analysis, in order to demonstrate the importance of the theme for the scientific community, to present the relevance of the subject nowadays, to identify the gaps of knowledge still little explored and to present how the development of research themes has developed over the years. The research intends to serve as a parameter for future researchers to follow as a starting point, in the deepening of research in the line of microconcrete.