27 research outputs found

    Mathematical Caring Relations in Action

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    In a small-scale, 8-month teaching experiment, the author aimed to establish and maintain mathematical caring relations (MCRs) (Hackenberg, 2005c) with 4 6th-grade students. From a teacher's perspective, establishing MCRs involves holding the work of orchestrating mathematical learning for students together with an orientation to monitor and respond to energetic fluctuations that may accompany student–teacher interactions. From a student's perspective, participating in an MCR involves some openness to the teacher's interventions in the student's mathematical activity and some willingness to pursue questions of interest. In this article, the author elucidates the nature of establishing MCRs with 2 of the 4 students in the study and examines what is mathematical about these caring relations. Analysis revealed that student–teacher interaction can be viewed as a linked chain of perturbations; in student–teacher interaction aimed toward the establishment of MCRs, the linked chain tends toward perturbations that are bearable (Tzur, 1995) for both students and teachers

    Charles Dickens and Edwin Drood: the death of the author, the rise of the reader

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    On June 9, 1870, Charles Dickens died, leaving his last novel, The Mystery of Edwin Drood, half completed. For decades, readers and scholars have speculated about what Dickens intended for the second half of this novel. I argue that the both Dickens and Edwin Drood have extended afterlives due to the incomplete nature of this novel: readers return to Dickens's career and his other novels in order to try to determine the fate of Edwin Drood. The case of Drood shows us that the author is not dead; Dickens stays very much alive in the continuations whether the writers of continuations choose to include him in their interpretations or whether they decide to exclude him from their interpretations but or pay homage to his writing style. Either way, Dickens is a part of the novel and its afterlives, even though other people have picked up their pens to finish what he began

    Mathematical caring relations: A challenging case

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    Accepted manuscript, post print versionDeveloped from Noddings's (2002) care theory, von Glasersfeld's (1995) constructivism, and Ryan and Frederick's (1997) notion of subjective vitality, a mathematical caring relation (MCR) is a quality of interaction between a student and a mathematics teacher that conjoins affective and cognitive realms in the process of aiming for mathematical learning. In this paper I examine the challenge of establishing an MCR with one mathematically talented 11-year-old student, Deborah, during an 8-month constructivist teaching experiment with two pairs of 11-year-old students, in which I (the author) was the teacher. Two characteristics of Deborah contributed to this challenge: her strong mathematical reasoning and her self-concept as a top mathematical knower. Two of my characteristics also contributed to the challenge: my request that Deborah engage in activity that was foreign to her, such as developing imagery for quantitative situations, and my assumption that Deborah's strong reasoning would allow her to operate in the situations I posed to her. The lack of trust she felt at times toward me and the lack of openness I felt at times toward her impeded our establishment of an MCR. Findings include a way to understand this dynamic and dissolve it to make way for more productive interaction

    The concept of cognition in the theory formation about the hypothesis of linguistic relativity. A metastudy in the history of linguistics

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    Der Fokus dieser wissenschaftsgeschichtlich-linguistischen Metastudie ist der Begriff des Denkens in der Theoriebildung zur linguistischen Relativitätshypothese.Der Autor verfolgt einen Kurs beginnend mit den amerikanischen Anthropologen Franz Boas, Edward Sapir und Benjamin Lee Whorf und den deutschen Neuhumboldtianern Leo Weisgerber und Helmut Gipper über die Theoriebildung in der experimentellen Disziplin, die mit den Arbeiten John A. Lucys und Stephen Levinsons anhebt, hin zu den Paradigmen des Sprechens-fürs-Denken und des Denkens-fürs-Sprechen. Auf diesem Weg reflektiert der Autor kapitelweise Paradigmenwechsel und kommt zu dem Schluss, dass der Begriff des Denkens vom jeweiligen wissenschaftlichen Paradigma abhängt als auch davon, welche kognitive Domäne Gegenstand der Theoriebildung ist.In einem ersten Anhang dekonstruiert der Autor Benjamin Lee Whorfs Ausführungen zur sprachlichen Basis des Zeitbegriffs im Standard Average European sowohl im Lichte eines weiteren linguistischen Kontexts als auch vor dem Hintergrund der Theoriebildungen in der Physik.In einem zweiten Anhang reflektiert der Autor die Rezeption der Idee Whorfs in der Literatur am Beispiel von Ted Chiangs Kurzgeschichte „Story of Your Life“.The focus of this metastudy in the history of linguistics is the concept of cognition in the theory formation following the hypothesis of linguistic relativity.The author follows a course starting with the American anthropologists Franz Boas, Edward Sapir, and Benjamin Lee Whorf and the German Neohumboldtians Leo Weisgerber and Helmut Gipper through the theorizing of the experimental discipline related to the work of John A. Lucy and Stephen Levinson to the paradigms of speaking-for-thinking and thinking-for-speaking. Along the line of this course the author reflects chapterwise changes of paradigms, reaching the conclusion that the concept of cognition is both paradigm-dependent and dependent on the respective cognitive domain which is the object of theorizing.In a first appendix the author deconstructs Benjamin Lee Whorf's theorizing about the linguistic basis of the concept of time in Standard Average European in the light of a broader linguistic context as well as in the light of the theory formation about time in physics.In a second appendix the author reflects the reception of Whorfian ideas in literature, pondering upon Ted Chiang's short story "Story of Your Life".Arbeit an der Bibliothek noch nicht eingelangt - Daten nicht geprüftAbweichender Titel laut Übersetzung des Verfassers/der VerfasserinMasterarbeit Karl-Franzens-Universität Graz 201

    Haruki Murakami's 1Q84: Reclaiming Agency through the Collaborative Disability Narrative Air Chrysalis

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    This thesis explores the healing process of collaborative life writing in in Haruki Murakami's novel 1Q84 (2012). Looking at Fuka-Eri's embedded story in the novel, titled Air Chrysalis, through a disability studies lens, I examine how Fuka-Eri, Tengo, and Aomame co-construct and deconstruct the collaborative disability narrative in ways that help them to discern reality from fiction in the quixotic world of 1Q84, and also allow them to cope with their memories and trauma. Drawing on Lennard Davis's theory of dismodernism and David Rose and Anne Meyer's universal design for learning, I focus on the life narrative's impact in constructing spaces of healing and in fostering authority of the self and the other as a resistance against the standard norms of dominant traditional institutions and society. I examine how the characters' co-authorship process of editing Air Chrysalis helps them to accept both the possibility and impossibility of authentic truth. I complete my exploration by investigating how the participatory reader's literacy process also affects—even helps to write—the collaborative disability narrative. I argue that through the process of life writing collaborative disability narratives like Air Chrysalis, the characters, author, editor, and reader can all reclaim agency and their identities by learning to embrace dismodernism through the disciplines of universal design for learning.https://doi.org/10.46569/20.500.12680/2801pp41

    'Nicely Boiled and Scraped': Medicine, Radicalism, and the "Useful Body" in a Lloyd Penny Blood

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    The publisher Edward Lloyd (1815-1890) helped shape Victorian popular culture in waysthat have left a legacy that lasts right up to today. He was a major pioneer of both popular fiction and journalism but has never received extended scholarly investigation until now. Lloydshaped the modern popular press: Lloyd’s Weekly Newspaper became the first paper to sell over a million copies. Along with publishing songs and broadsides, Lloyd dominated the fiction market in the early Victorian period issuing Gothic stories such as Varney the Vampire (1845-7) and other ’penny dreadfuls’, which became bestsellers. Lloyd’s publications introduced the enduring figure of Sweeney Todd whilst his authors penned plagiarisms of Dickens’s novels, such as Oliver Twiss (1838-9). Many readers in the early Victorian period may have been as likely to have encountered the author of Pickwick in a Lloyd-published plagiarism as in the pages of the original author. This book makes us rethink the early reception of Dickens. In this interdisciplinary collection, leading scholars explore the world of Edward Lloyd and his stable of writers, such as Thomas Peckett Prest and James Malcolm Rymer. The Lloyd brand shaped popular taste in the age of Dickens and the Chartists. Edward Lloyd and his World fills a major gap in the histories of popular fiction and journalism, whilst developing links with Victorian politics, theatre and music

    Exploring the Hemp Virome and Assessing Hemp Germplasm for Resistance to an Emerging Pathogen

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    Hemp (Cannabis sativa L., 97% nucleotide identity to their nearest GenBank accessions. As the growing season progressed, viral incidence and the number of viral species increased. We observed similar and unique viromes between individual cultivars from the same field. Given the prevalence of BCTV in the virome and its prevalence across the western United States, 13 genotypes of hemp were screened for resistance to this pathogen. Two genotypes (4587 and 4710) had a lower BCTV log copy number and disease index than others. Our study provides initial evidence of the diversity of viral communities in hemp across Colorado and provides impetus for developing accurate detection methods and screening for host resistance. [Figure: see text] Copyright © 2025 The Author(s). This is an open access article distributed under the CC BY-NC-ND 4.0 International license

    A Multiplex RT-PCR for the Detection of Three Viruses and One Viroid Infecting Hemp

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    Hemp (Cannabis sativa L.) is an emerging industrial crop in the United States. In recent surveys of hemp growers, disease identification and management were determined to be significant priority areas for future research. From previous studies on disease identification in Western U.S. hemp production systems, hop latent viroid (HLVd), beet curly top virus (BCTV), Cannabis sativa mitovirus 1 (CasaMV1), and citrus yellow vein associated virus (CYVaV) were detected at high incidences. In the present study, a multiplex reverse transcription PCR protocol was developed to detect this viroid and viruses from hemp leaf samples simultaneously. Using the developed protocol, the multiplex reverse transcription PCR could detect each virus and viroid specifically in 10−1-diluted cDNA. The protocol was validated on 6 hemp metavirome leaf samples from field-grown hemp grown in 2019 and 23 uncharacterized leaf samples in 2021 from Colorado. Of the samples tested, 95% tested positive for CasaMV1 in 2021. This was greater than infections of BCTV (4%), HLVd (0%), and CYVaV (0%). Coinfections accounted for 4% of samples in 2021. This method offers sensitive, specific, and fast simultaneous detection of three viruses and one viroid from hemp, contributing to large-scale pathogen-free hemp certification schemes. [Figure: see text] Copyright © 2024 The Author(s). This is an open access article distributed under the CC BY 4.0 International license

    Evaluation of the value of activity-based token reinforcement

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    In ABA, tokens are a conditioned stimulus that can be used to reinforce behavior when delivered following the response (Hackenberg, 2009). Traditional tokens can take many different forms, including pennies, stickers, or check marks. However, for some learners, these tokens may have no reinforcing effect, and the resulting token economy may have a weak reinforcing effect. Very little research has been done examining the different types of tokens that are used in a token economy. The present study sought to determine if items from a learner’s preferred activities could be used as tokens and if they are more reinforcing than the traditional token. Study 1 replicated Fiske et al.’s (2020) use of a multiple-schedule reinforcer assessment to assess the value of traditional and activity-based tokens. Study 2 replicated Charlop-Christy and Haymes (1998) method to evaluate whether the use of activity tokens led to more accurate responding in an academic task than the traditional tokens. One student participated in both studies. The results of Study 1 indicate that the student engaged in more responses when an activity token with backup reinforcement was delivered as a consequence, compared to when the traditional token with backup reinforcement was used. However, no difference in responding was observed when the tokens were presented as a consequence without backup reinforcement. In Study 2, the learner engaged in more accurate responding on an academic task when activity tokens were delivered than when traditional tokens were delivered. Overall, the results of this study demonstrate that the type of token being used for a learner can affect performance and activity-based token economies can be an effective system of reinforcement.Psy.D.Includes bibliographical reference

    Maori preservice primary teachers’ responses to mathematics investigations

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    There has been concern for some years about the low mathematics achievement of Maori students in New Zealand. This case study reports on the responses of 18 Maori preservice teachers to investigative approaches to learning mathematics during their compulsory Year 1 mathematics education course, as a possible aid towards helping improve the achievement level of Maori in mathematics
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