170 research outputs found
Using molecular techniques to quantify iron bound nitrogenase in trichodesmium IMS 101 and natural populations:
No full textIron has been widely recognized as a potentially key factor in promoting nitrogen fixation by Trichodesmium. Data from both laboratory and field studies demonstrates that increasing the iron concentrations stimulates growth, photosynthetic rates and nitrogen fixation of both cultured and natural populations. However, quantitative studies that elucidate relationships between cellular iron quotas and physiological mechanisms have been limited. In this study, molecular techniques enabled quantification of the amount of nitrogenase expressed in iron-replete cultures of Trichodesmium IMS 101 over a diel cycle. A standard of the purified iron component of nitrogenase was generated from an expression and protein purification system. Using this standard and known values of intracellular carbon, the amount of nitrogenase per carbon at peak expression was measured, 0.038 mg nitrogenase: mg C. The quantity of iron bound in the nitrogenase structure was then calculated; Fe:C equal to 236.53 [mu]mol: mol. Using estimates of Trichodesmium biomass from the literature, the amount of iron bound in the nitrogenase structure was calculated for various ocean regions, resulting in 2.22 [mu]mol m-3 and 0.05 [mu]mol m-3 of iron bound in nitrogenase in the subtropical North Atlantic and North Pacific, respectively.M.S.Includes bibliographical references (p. 29-32)by Sherrie Whittake
Language of the Heart: Chickasaw Language Reclamation as a Life’s Pursuit
No full textAs Chickasaw language learners and teachers, we believe strongly that it is through our oral traditions—expressed through our languages—that we are instructed “to be a people in heart, thought, behavior, and conduct as [we] pursue life’s fulfillment” (Nicholas, 2014, p. 64). Significantly, a small but increasing number of Chickasaw citizens have exemplified vigorous and persistent pursuits of sustaining Chikashshanompa', the Chickasaw language, over time and transcending colonization. This paper considers what it means for Chickasaw language learners and teachers to engage in language reclamation as a life’s pursuit. A Chickasaw language learner and researcher compelled to understand this phenomenon, Author A utilized a culturally-grounded methodology to conduct interviews with other Chickasaw language learners and teachers representing distinct generational categories and demographics, such as young adults employed by the tribal language program, youth enrolled in language classes, and adults residing outside of the Chickasaw Nation. From these learners’ stories, three key themes emerged as central to the vitality and efficacy of Chickasaw language reclamation, including a 1) raised critical Chickasaw consciousness (Lee, 2009; Smith, 2005); 2) conception of Chikashshanompa' as cultural practice (Nicholas, 2009); and 3) (re)valuing of language learners (Meek, 2011; Wyman, McCarty, & Nicholas, 2014). We draw on Author A’s research findings as a context to share Author B’s personal story as one example of the way in which the pursuit of language reclamation over a lifetime may unfold. To this end, Author B, a community member actively involved in Chickasaw language education, begins her story with her own experience of awakening to the importance and value of her Indigenous heritage language, which she began to learn from her father, to her sense of self and purpose for her life. Author B powerfully asserts that her journey has been one not only of reclaiming her language but her life itself. Recognizing that she had a gift for learning and teaching language, Author B began to teach an online Chikashshanompa' course to help other Chickasaws connect to and find their place in the Chickasaw Nation through language, no matter where they live. This paper ultimately seeks to explore the importance of sustaining cultural and linguistic practices, offering as evidence the vital voices of Chickasaws language learners and teachers who have restructured their lives around ensuring the continuance of Chikashshanompa'. References Lee, T. S. (2009). Language, identity, and power: Navajo and Pueblo young adults’ perspectives and experiences with competing language ideologies. Journal of Language, Identity, and Education, 8(5), 307-320. Meek, B. A. (2011). Failing American Indian languages. American Indian Culture and Research Journal, 35(2), 43-60. Nicholas, S. E. (2009). “I live Hopi, I just don't speak it”—The critical intersection of language, culture, and identity in the lives of contemporary Hopi youth. Journal of Language, Identity, and Education, 8(5), 321-334. Nicholas, S. E. (2014b). “How are you Hopi if you can’t speak it?”: An ethnographic study of language as cultural practice among contemporary Hopi youth. In T. L. McCarty (Ed.), Ethnography and language policy (pp. 53-75). New York, NY: Routledge. Smith, G. H. (2005). Beyond political literacy: From conscientization to transformative praxis. Counterpoints, 275, 29-42. Wyman, L. T., McCarty, T. L., & Nicholas, S. E. (Eds.). (2014b). Indigenous youth and multilingualism: Language identity, ideology, and practice in dynamic cultural worlds. New York, NY: Routledge
What appropriationism says about the authority of the author
No full textpeer reviewedAppropriationism, understood as an artistic practice of reproduction or taking over of the works of other authors, can be said to offer for philosophical reflection on the notion of authority in art means suited to clarifying the meaning of this notion. Far from unconditionally agreeing with Barthes' declaration of the death of the author and the liberation of the meaning of the work that it implies, appropriationism forces one to consider a certain return of the author and his prerogatives, on the basis which the issue of the interpretation of a work emerges. In the light of a part of the photographic work of Sherrie Levine an attempt is made in this article to examine the authoritarian role that an artist can play in the reception of the works he has created (transl. J. Dudley)
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Louder and Faster Pain, Joy, and the Body Politic in Asian American Taiko
No full textI find myself influenced, charged, and much affected by this work.”—Sherrie Tucker, author of Dance Floor Democracy: The Social Geography of Memory at the Hollywood Canteen “In this deeply moving account of southern California’s ..
In Terms of Post-Structuralist Arguments the Author and Art Object
No full textdiscusses methodical system built by Structuralists and disconnecting efforts on the relationship with "ego" in association with the problematic "what art is" in the absence of author/artist/writer which is the place where the "ego" is positioned. The post-structuralist arguments, which sublate the autonomy of "ego" notion defined by Structuralists on language and parole, basically refuse the structure positioned on "central ego". This situation is considered as an author problematic in the art discussions and can be examined philosophically. This article does not only head to the artwork by separating the artists and the artwork, but it also opposes the interpretation symbolized with conscious/unconscious interventions on the artwork by the artist. The article also examines the endowed autonomy status. The death of author can be defined as a synonym of destroying the uniqueness established by the artworks based on 'ego'ism and the uniqueness of hegemony established in terms of discourse and text by post-structural arguments. Especially in the history of art, the process taking an important place in the author's questioning and emerging with Marcel Duchamp's 'Fountain' transforms to an author problematic as a reproduction with Sherrie Levine. The approach on 'ego'ism in their artworks shown by Yves Klein, Robert Rauschenberg and Ben Vautier was examined within the problematic of the author and the art objectPost-yapısalcı argümanlar ekseninde, müellif ve sanat nesnesi adlı bu metinde; yapısalcıların kurduğu sistematik dizgenin, ‘ben’ ile ilişkisini söküme uğratma çabaları ile sanatta ‘ben’in konumlandığı yer olan müellif/sanatçı/yazar’ın yokluğunda sanatın ne’liği sorunsalını ilişkilendirerek ele alınmıştır. Yapısalcıların dil-söz üzerinde kurdukları “ben” tanımlarının özerkliğini olumsuzlayan postyapısalcı argümanlar, temelde ‘merkezi benlik’üzerine konumlanan bir yapıyı reddeder. Bu durum, sanat tartışmalarında müellif sorunsalı olarak ele alınmakta ve felsefi açıdan irdelenebilmektedir. Bu metin, sanatçı ve yapıtı birbirinden ayırmak suretiyle sadece sanat yapıtına yönelmemekte, aynı zamanda sanatçının sanat işlerini bilinç/bilinçdışı müdahalelerle simgeleştirdiği anlamlandırmalara da karşı çıkmakta ve ona bahşedilen özerklik statüsünü de sorgulamaktadır. Müellifin ölümü, sanat yapıtlarının ‘ben’lik üzerine kurduğu tekilliği yıkmak ve post-yapısalcı argümanların söylem-metin ekseninde kurduğu hegemonyanın tekilliğini yıkmak ile eşanlamda açıklanabilir. Özellikle sanat tarihinde, müellif sorgulamasında önemli bir yere oturan Marcel Duchamp’ın ‘Fountain’çalışması ile beliren süreç, Sherrie Levine ile bir yeniden üretim olarak müellif sorunsalına dönüşecek; Yves Klein, Robert Rauschenberg ve Ben Vautier’in yapıtlarında ‘ben’lik sorunsalına olan yaklaşımlarla müellif ve sanat nesnesi sorunsalı içeriğinde incelenecekti
Artist in the making
No full textThis thesis was scanned from the print manuscript for digital preservation and is copyright the author.
Researchers can access this thesis by asking their local university, institution or public library to
make a request on their behalf. Monash staff and postgraduate students can use the link in the References field
Developing Critical Thinking in Doctoral Students: Issues and Solutions
No full textThe PhD is the highest level of academic qualification, and is by its very nature an exercise in the development of critical thinking. This chapter discusses what it means to study for a PhD and the problems that students have with developing skills of criticality. The author discusses his own experiences of supervising over 50 doctoral students and relates this to the relevant literature. The role that the supervisor, research training, the thesis, dissemination and the viva can play in developing critical thinking are discussed. The power of specific techniques including reflection, action research and action learning are also explored. The chapter presents areas worthy of future study and concludes by presenting an agenda which PhD students and their supervisors might follow
Music, Disability, and Society (Lubet)
No full textThis is a review of the book "Music, Disability, and Society" authored by Alex Lubet.
Title: Music, Disability, and Society | Author: Alex Lubet | Year: 2011 | Publisher: Temple University Press | Pages: 264 | ISBN: 978-143990025
Practice-Based Research in Three Personal Turns
No full textIn this contribution to the forum on Practice-Based Research (PBR), the author reflects on PBR "moves" throughout her career, identifying three moments when she could feel her practice change, in very personal and embodied ways. She reflects on the "personal turns" and the unanticipated methods and information that emerged
Getting in the path of the robot: Pedestrians acceptance of crossing roads near fully automated vehicles
No full textAdoption of Automated Vehicles (AVs) within transport networks relies on the technology acceptance of not only AV users, but also other road users such as pedestrians. However, previous research has mostly focused on user acceptance of AVs and the receptivity of pedestrians towards AVs has been largely unexplored. This study aims to fill this gap by applying the Theory of Planned Behaviour (TPB), the Technology Acceptance Model (TAM), and the Unified Theory of Acceptance and Use of Technology (UTAUT) to investigate pedestrians’ intentions to cross a road in front of a fully AV. To achieve this goal, a 20-minute online questionnaire was administered in Australia and data were collected from a total of 485 participants (average age = 35.35 years, 51.5% female). Bivariate correlation analysis and hierarchical regression models were then applied on the data to investigate the association between pedestrian attributes and their behavioural intentions. The findings revealed that the TPB and the UTAUT explained 46% and 43% of the variance in intentions to cross a road in front of a fully AV, respectively, with perceived behavioural control (PBC) and subjective/social norms the most significant unique predictors of intentions within the TPB and UTAUT, respectively. The TAM, however, only explained 35% of the variance in intentions to cross a road in front of a fully AV. When added into Step 2 of the hierarchical regression, age accounted for additional variance above the TAM predictors, indicating that younger participants reported higher intentions to cross a road in front of a fully AV than older participants. Age was not a significant predictor of intentions when entered with the predictors of the TPB and UTAUT. This study provides support for the use of these theoretical models to understand pedestrians’ acceptance of AVs.Accepted Author ManuscriptSafety and Security Scienc
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