Making the ‘Marsupial Lion‘: Bunyips, Networked Colonial Knowledge Production between 1830–59 and the Description of Thylacoleo carnifex

2018 ◽  
Vol 29 (2) ◽  
pp. 91 ◽  
Author(s):  
P. Minard
Keyword(s):  
Knowledge Production ◽  
Theoretical Models ◽  
Deep Time ◽  
Real Power ◽  
Scientific Network ◽  
Power Differentials ◽  
Personal Status ◽  
Richard Owen ◽  
Australian Marsupial

This article explores the processes leading up to the description of Thylacoleo carnifex by Richard Owen in 1859. It argues that it resulted from thirty years of searching for extinct marsupial predators in Australian fossil sites, starting with the discovery of the first Australian marsupial megafauna fossils in 1830. Australian farmers, colonial and metropolitan scientists and anonymous indigenous informants conducted this search. Together these individuals formed a scientific network that found, shipped and inscribed fossils as marsupial carnivores. This network involved the constant movement of ideas, people and fossils to and from the Australian colonies as colonial investigators sought patronage, personal status and the incorporation of Australian deep time within European theoretical models. This networked model demonstrates the agency of colonial investigators without flattening the very real power differentials they had to negotiate when metropolitan experts sought out specimens, correspondents and supporters.

scholarly journals Algorithmic Television in the Age of Large-scale Customization

2020 ◽  
Vol 21 (6) ◽  
pp. 658-663
Author(s):  
Stephen Shapiro
Keyword(s):  
Knowledge Production ◽  
Large Scale ◽  
Theoretical Models ◽  
Television Studies ◽  
Turn On ◽  
The U.S ◽  
Mode Of Production

One challenge that Television Studies faces today is how to respond to the rise of an industry increasingly organized by what Antoinette Rouvroy calls “data behavioralism.” The rise of streaming prestige television, exemplified by Netflix, has significant implications within the U.S. screen industry, but the “Netflix effect,” as McDonald and Smith-Rowsey call it, is more than just a change in the industrial mode of production, means of distribution, and method of consumption. The datalogic turn on which Netflixism is based also undermines the theoretical models on which Television Studies was largely built, including theories of representation, visual interpellation and pleasure, and power as “productive.” Hence, the rise of algorithmic television is not simply a new “object” or “wave” for us to study and comment upon; it challenges the mode of knowledge-production (or dispositif) on which the field has grounded itself.

Toward an understanding of cosmopolitanism in deep time: a case study of ammonoids from the middle Permian to the Middle Triassic

Paleobiology ◽  
2020 ◽  
Vol 46 (4) ◽  
pp. 533-549
Author(s):  
Xu Dai ◽  
Haijun Song
Keyword(s):  
Mass Extinction ◽  
Middle Triassic ◽  
Theoretical Models ◽  
Geographic Range ◽  
Middle Permian ◽  
Time Interval ◽  
Mass Extinctions ◽  
Deep Time ◽  
Underlying Mechanisms ◽  
Selective Extinction

AbstractCosmopolitanism occurred recurrently during the geologic past, especially after mass extinctions, but the underlying mechanisms remain poorly known. Three theoretical models, not mutually exclusive, can lead to cosmopolitanism: (1) selective extinction in endemic taxa, (2) endemic taxa becoming cosmopolitan after the extinction and (3) an increase in the number of newly originated cosmopolitan taxa after extinction. We analyzed an updated occurrence dataset including 831 middle Permian to Middle Triassic ammonoid genera and used two network methods to distinguish major episodes of ammonoid cosmopolitanism during this time interval. Then, we tested the three proposed models in these case studies. Our results confirm that at least two remarkable cosmopolitanism events occurred after the Permian–Triassic and late Smithian (Early Triassic) extinctions, respectively. Partitioned analyses of survivors and newcomers revealed that the immediate cosmopolitanism event (Griesbachian) after the Permian–Triassic event can be attributed to endemic genera becoming cosmopolitan (model 2) and an increase in the number of newly originated cosmopolitan genera after the extinction (model 3). Late Smithian cosmopolitanism is caused by selective extinction in endemic taxa (model 1) and an increase in the number of newly originated cosmopolitan genera (model 3). We found that the survivors of the Permian–Triassic mass extinction did not show a wider geographic range, suggesting that this mass extinction is nonselective among the biogeographic ranges, while late Smithian survivors exhibit a wide geographic range, indicating selective survivorship among cosmopolitan genera. These successive cosmopolitanism events during severe extinctions are associated with marked environmental upheavals such as rapid climate changes and oceanic anoxic events, suggesting that environmental fluctuations play a significant role in cosmopolitanism.

scholarly journals Tourism Education, Curriculum Spaces, Knowledge Production, and Disciplinary Pluralism

2018 ◽  
Vol 9 ◽  
pp. 83-155
Author(s):  
Ramesh Raj Kunwar
Keyword(s):  
Knowledge Production ◽  
Theoretical Models ◽  
Research Knowledge ◽  
Space Management ◽  
Hospitality Education ◽  
Life Long Learning ◽  
Tourism Education ◽  
Successful Intelligence ◽  
Tourism And Hospitality ◽  
The Mind

In course of designing the courses, the present author in the phase of curriculum coordination, consulted various research papers and books based on the theoretical models of tourism and hospitality education. The review of those works not only have broadened the mind of curriculum designer but also has given knowledge education on various fields of tourism education. It is strongly believed that tourism education will become the backbone and impetus for making tourism as an institution and industry stronger. One of the most important aspects of studying tourism is disciplinarian approach. The sources of knowledge production are based on monodiscipline, multidiscipline, interdiscipline, transdiscipline, extradiscipline, postdiscipline, antidiscipline, metadiscipline and nomadology also coined as disciplinary pluralism or plurydisciplines that have created a disciplinary dilemma. The curriculum should be designed on the basis of praxis and phronesis (Aristotalian thought based on application and theory), Tourism Education Future Initiative’s ( TEFI ) model, John Tribe’s (1997) model ( TF1 and TF2) , Echtner’s (1995) three pronged approach, Mayaka and Akama’s (2007 & 2015) curriculum space model and Koh’s (1994) marketing approach and others. All the above mentioned theoretical models and approaches will help in thinking of and thinking for tourism and hospitality. Simultaneously, it will also help for knowing, seeing, doing and being in the field of education in relation with tourism, hospitality and events (THE). But in this study, only tourism education has been prioritized.Tourism academic world has debated and advocated regarding different approaches, concepts, models, theories and paradigms developed by different scholars of tourism and hospitality.The scientific and reliable arguments have been occurred in different timelines, centralized on tourism education, research, knowledge, phenomena, normative and existential knowledge, successful intelligence, learning, life-long learning, collaboration, professionalism competences, scholarship, disciplines, academic territory, academic tribe, field, forcefield, studies, knowledge production, philosophic practitioner, curriculum space, management, social sciences, disciplinary pluralism, liberal and vocational balance in the field of tourism and hospitality subjects that have become the force for understanding tourism education in a better way.The Gaze: Journal of Tourism and Hospitality Vol.9 2018 p.83-155

Analytical Electron Microscopy of Surface-Modified Ceramics

1985 ◽  
Vol 43 ◽  
pp. 276-279
Author(s):  
P. S. Sklad
Keyword(s):  
Electron Microscopy ◽  
Analytical Electron Microscopy ◽  
Theoretical Models ◽  
Ceramic Materials ◽  
Solute Concentration ◽  
Second Phase ◽  
Analytical Electron ◽  
Implantation Techniques ◽  
Lattice Damage ◽  
Surface Modified

Over the past several years, it has become increasingly evident that materials for proposed advanced energy systems will be required to operate at high temperatures and in aggressive environments. These constraints make structural ceramics attractive materials for these systems. However it is well known that the condition of the specimen surface of ceramic materials is often critical in controlling properties such as fracture toughness, oxidation resistance, and wear resistance. Ion implantation techniques offer the potential of overcoming some of the surface related limitations.While the effects of implantation on surface sensitive properties may be measured indpendently, it is important to understand the microstructural evolution leading to these changes. Analytical electron microscopy provides a useful tool for characterizing the microstructures produced in terms of solute concentration profiles, second phase formation, lattice damage, crystallinity of the implanted layer, and annealing behavior. Such analyses allow correlations to be made with theoretical models, property measurements, and results of complimentary techniques.

On the Relationship Between General Auditory Sensitivity and Speech Perception: An Examination of Pitch and Lexical Tone Perception in 4- to 6-Year-Old Children

2020 ◽  
Vol 63 (2) ◽  
pp. 487-498
Author(s):  
Puisan Wong ◽  
Man Wai Cheng
Keyword(s):  
Speech Perception ◽  
Theoretical Models ◽  
Developmental Trajectory ◽  
Auditory Sensitivity ◽  
Pitch Discrimination ◽  
Lexical Tone ◽  
Perceptual Training ◽  
Lexical Tones ◽  
Tone Perception ◽  
Tone Discrimination

Purpose Theoretical models and substantial research have proposed that general auditory sensitivity is a developmental foundation for speech perception and language acquisition. Nonetheless, controversies exist about the effectiveness of general auditory training in improving speech and language skills. This research investigated the relationships among general auditory sensitivity, phonemic speech perception, and word-level speech perception via the examination of pitch and lexical tone perception in children. Method Forty-eight typically developing 4- to 6-year-old Cantonese-speaking children were tested on the discrimination of the pitch patterns of lexical tones in synthetic stimuli, discrimination of naturally produced lexical tones, and identification of lexical tone in familiar words. Results The findings revealed that accurate lexical tone discrimination and identification did not necessarily entail the accurate discrimination of nonlinguistic stimuli that followed the pitch levels and pitch shapes of lexical tones. Although pitch discrimination and tone discrimination abilities were strongly correlated, accuracy in pitch discrimination was lower than that in tone discrimination, and nonspeech pitch discrimination ability did not precede linguistic tone discrimination in the developmental trajectory. Conclusions Contradicting the theoretical models, the findings of this study suggest that general auditory sensitivity and speech perception may not be causally or hierarchically related. The finding that accuracy in pitch discrimination is lower than that in tone discrimination suggests that comparable nonlinguistic auditory perceptual ability may not be necessary for accurate speech perception and language learning. The results cast doubt on the use of nonlinguistic auditory perceptual training to improve children's speech, language, and literacy abilities.

The Life of Richard Owen

2009 ◽  
Author(s):  
Richard S. Owen
Keyword(s):  
Richard Owen

Positive Arousal Enhances the Consolidation of Item Memory

2015 ◽  
Vol 74 (2) ◽  
pp. 91-104 ◽  
Author(s):  
Bo Wang
Keyword(s):  
Episodic Memory ◽  
Memory Consolidation ◽  
Source Memory ◽  
Emotional Arousal ◽  
Theoretical Models ◽  
Memory Test ◽  
Learning Phase ◽  
Item Memory ◽  
Memory Tests ◽  
Immediate Memory

Emotional arousal induced after learning has been shown to modulate memory consolidation. However, it is unclear whether the effect of postlearning arousal can extend to different aspects of memory. This study examined the effect of postlearning positive arousal on both item memory and source memory. Participants learned a list of neutral words and took an immediate memory test. Then they watched a positive or a neutral videoclip and took delayed memory tests after either 25 minutes or 1 week had elapsed after the learning phase. In both delay conditions, positive arousal enhanced consolidation of item memory as measured by overall recognition. Furthermore, positive arousal enhanced consolidation of familiarity but not recollection. However, positive arousal appeared to have no effect on consolidation of source memory. These findings have implications for building theoretical models of the effect of emotional arousal on consolidation of episodic memory and for applying postlearning emotional arousal as a technique of memory intervention.

The Role of Distress Disclosure Tendencies in the Experience and Expression of Laboratory-Induced Sadness

2017 ◽  
Vol 38 (1) ◽  
pp. 55-62 ◽  
Author(s):  
Jeffrey H. Kahn ◽  
Daniel W. Cox ◽  
A. Myfanwy Bakker ◽  
Julia I. O’Loughlin ◽  
Agnieszka M. Kotlarczyk
Keyword(s):  
Individual Differences ◽  
Emotional Reactivity ◽  
Subjective Experience ◽  
Negative Emotion ◽  
Theoretical Models ◽  
Laboratory Research ◽  
Emotion Words ◽  
Distress Disclosure ◽  
Computerized Text Analysis

Abstract. The benefits of talking with others about unpleasant emotions have been thoroughly investigated, but individual differences in distress disclosure tendencies have not been adequately integrated within theoretical models of emotion. The purpose of this laboratory research was to determine whether distress disclosure tendencies stem from differences in emotional reactivity or differences in emotion regulation. After completing measures of distress disclosure tendencies, social desirability, and positive and negative affect, 84 participants (74% women) were video recorded while viewing a sadness-inducing film clip. Participants completed post-film measures of affect and were then interviewed about their reactions to the film; these interviews were audio recorded for later coding and computerized text analysis. Distress disclosure tendencies were not predictive of the subjective experience of emotion, but they were positively related to facial expressions of sadness and happiness. Distress disclosure tendencies also predicted judges’ ratings of the verbal disclosure of emotion during the interview, but self-reported disclosure and use of positive and negative emotion words were not associated with distress disclosure tendencies. The authors present implications of this research for integrating individual differences in distress disclosure with models of emotion.

Convergent and Predictive Validity of Implicit and Explicit Anxiety Measures as a Function of Specificity Similarity and Content Similarity

2008 ◽  
Vol 24 (4) ◽  
pp. 254-262 ◽  
Author(s):  
Tobias Gschwendner ◽  
Wilhelm Hofmann ◽  
Manfred Schmitt
Keyword(s):  
Implicit Association Test ◽  
Theoretical Models ◽  
Implicit Measures ◽  
Speech Anxiety ◽  
Behavioral Indicators ◽  
General Anxiety ◽  
Anxious Behavior ◽  
Content Similarity ◽  
Implicit And Explicit ◽  
Validation Strategy

In the present study we applied a validation strategy for implicit measures like the IAT, which complements multitrait-multimethod (MTMM) analyses. As the measurement method (implicit vs. explicit) and underlying representation format (associative vs. propositional) are often confounded, the validation of implicit measures has to go beyond MTMM analysis and requires substantive theoretical models. In the present study (N = 133), we employed such a model ( Hofmann, Gschwendner, Nosek, & Schmitt, 2005 ) and investigated two moderator constructs in the realm of anxiety: specificity similarity and content similarity. In the first session, different general and specific anxiety measures were administered, among them an Implicit Association Test (IAT) general anxiety, an IAT-spider anxiety, and an IAT that assesses speech anxiety. In the second session, participants had to deliver a speech and behavioral indicators of speech anxiety were measured. Results showed that (a) implicit and explicit anxiety measures correlated significantly only on the same specification level and if they measured the same content, and (b) specific anxiety measures best predicted concrete anxious behavior. These results are discussed regarding the validation of implicit measures.

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