33 research outputs found
The ongoing faculty development system: A case study exploring content methods teacher education faculty technological, pedagogical, content knowledge development
Society has changed from manufacturing to information-based, resulting in an emphasis in different knowledge and skills. When entering the profession, new teachers will be expected prepare learners for key 21st century skills using digital technologies. At a time when near technological ubiquity exists, development of these skills using digital tools has become an expectation. As teacher education programs have responded to the demands for more new teachers that can leverage technologies to develop 21st century skills, much of this preparation has occurred in instructional technology focused courses. However, in recent years attention has shifted to developing these skills in content methods courses, which have the potential to more deeply contextualize the use of digital technologies within individual disciplines. As faculty have requested more faculty development support, often decontextualized technology-focused workshops have been the misguided response. This has resulted in faculty disenchantment with development offerings due to a lack of applicability within their courses. The purpose of this study was to explore a different approach to faculty development grounded in Technological, Pedagogical, Content Knowledge (TPACK), social constructivism, adult learning theory, and systems theory.
An embedded mixed method exploratory case study was used to examine a cohort- and design- based faculty development experience, how faculty implemented TPACK-based instruction, and changes to faculty and preservice teacher TPACK. Data was collected using faculty interviews, participant observation, and a candidate survey and was analyzed using Grounded Theory and Constant Comparison, as well as descriptive and inferential statistics. Results indicated the emergence of an ongoing faculty development system where faculty progressed through the entire instructional design process while engaging in development activities throughout the study. Key themes identified were the differences faculty described between âone shotâ and ongoing faculty development, as well as the value of faculty developer support as being both personalized and dispositional in nature, allowing for more faculty comfort and risk taking. There were also increases in faculty TPACK, as well as statistically significant increases in some candidate TPACK domains. Given the ongoing nature of faculty development that emerged in this study, attention is given to the implications of this phenomenon within higher education
A phenomenological exploration of the role of digital technology and media in childrenâs subjective well-being
This phenomenological study examined childrenâs subjective well-being (N = 22) in rural and urban areas of the Midwestern United States, as part of a larger multinational comparative qualitative study of children\u27s well-being. Children (8 to 12 years old) completed an extended, semi-structured qualitative interview and mapping exercise that prompted them to draw and describe the scope, aspects of, and influences on their subjective well-being. Phenomenological analyses of childrenâs responses were conducted to identify aspects of their contexts, including their use of digital technology and media (DTM), that were linked to childrenâs subjective well-being. Two main themes emerged; 1) children reported that DTM is not essential to their well-being but 2) DTM is important to their well-being. Six sub-themes emerged under the DTM is important theme. Children reported that DTM is rewarding and valuable to them, and it contributes to their life satisfaction. They also reported that DTM use enhances their connections to others, self-acceptance, autonomy, and competence and skills. Results are discussed in regards to childrenâs self-identified hedonic and eudaimonic aspects of their well-being, and are placed within a contextual framework of child well-being. Implications, strengths, and weaknesses of the study are discussed
Itâs fun!â Using studentsâ voices to understand the impact of school digital technology integration on their well-being
The purpose of this phenomenological study was to better understand childrenâs perception of their school-based educational technology use and its role in their well-being. Children (N = 23) from the Midwestern U.S. completed an interview and mapping exercise focused on the contexts and factors that impact their well-being, including schools and teachers. Phenomenological analyses of interview transcripts focused on childrenâs perceptions of 1) school educational technology use, and 2) the impact of school educational technology use on their well-being. Children described a variety of school educational technology experiences, which they perceived as having both positive and negative effects on their well-being. Findings are discussed in the context of the historical challenges to school educational technology integration and childrenâs well-being
Developing a Mobile Reduced Gravity Simulator
Master of ScienceDepartment of Mechanical & Nuclear EngineeringDale SchinstockThis thesis describes the design, development, and initial testing of the Mobile Reduced Gravity Simulator (MoRGS). MoRGS is a hoist with active force control, to be used in terrestrial environments with human test subjects for the simulation of partial gravity or zero gravity environments. It is to be used with the subject performing activities while being harnessed to the hoist. The following work here describes the mechanical design, structural and dynamic analyses, simulations used to aid in the control design and component selection, the development of unique control algorithms tailored to the objectives and uncommon dynamics of MoRGS, and initial testing performed without the use of human subjects.
Major components of the MoRGS system include: AC servo motor, gearbox, custom-designed drum, pneumatic muscle, load cell, and a microprocessor. The system is designed to track the motion of the test subject over several meters of vertical travel at speeds of up to 2 Gs of acceleration. This allows for high performance during subjectâs physical tests, including running on a treadmill and a climbing ladder. It is capable of offloading 50 lb. to 600 lb. and the level of desired reduced gravity is programmable.
Results from testing of the system demonstrate that MoRGS system achieves its goals. It performs well, and the sensitivity of the force controller enables it to compensate for the most minute human motion disturbance
School climate, emotions, and relationships : childrenâs experiences of well-being in the Midwestern U.S.
The purpose of this phenomenological study was to explore childrenâs perceptions of school relationships, and the ways in which those relationships supported or undermined childrenâs emotional well-being (EWB). This sub-study of a multinational comparative investigation of childrenâs well-being followed a semi-structured qualitative interview protocol. Rural and urban children (age 8 to 13, N = 23) from the Midwestern U.S. completed the interview and mapping exercise used to explore aspects of and influences on their subjective well-being (including school). Phenomenological analyses of interview transcripts focused on 1) the essence of childrenâs EWB (including emotional valence and arousal) within the context of school relationships and 2) childrenâs perception of the impact of school relationships on their EWB. A seasonal metaphor captured the essence of childrenâs experiences of EWB, which naturally clustered into four themes based on emotional intensity and valance: spring, summer, fall, and winter. Childrenâs emotional experiences with teachers and peers were similarly represented in the themes, with the exception of winter emotions, which diverged. Children expressed complex, multilayered emotions within the school setting that were connected to the quality of school relationships. Findings are discussed in the context of improving school relationships and climate to support childrenâs EWB.peer-reviewe
The auditory region of Artiodactyla : phylogenetical and ecological signal
La mise en Ă©vidence par la biologie molĂ©culaire et par les donnĂ©es palĂ©ontologiques de l'appartenance des cĂ©tacĂ©s au groupe des artiodactyles constitue une des avancĂ©es majeures de ces 30 derniĂšres annĂ©es en mammalogie. Il n'y a cependant pas Ă l'heure actuelle de consensus quant aux relations phylogĂ©nĂ©tiques basales des artiodactyles fondĂ©es sur des caractĂšres morphologiques et l'histoire Ă©volutive du groupe est de fait, ponctuĂ©e de nombreux points d'interrogation. Cette thĂšse explore une source de caractĂšres phylogĂ©nĂ©tiques prometteuse : la rĂ©gion auditive (os pĂ©treux, bulle auditive, osselets de l'oreille moyenne, oreille interne) Ă partir notamment des nouvelles perspectives offertes par l'imagerie ”CT Scan. Les principaux objectifs de cette thĂšse sont (1) de dĂ©terminer le signal phylogĂ©nĂ©tique portĂ© par la rĂ©gion auditive chez les artiodactyles afin dâapporter une nouvelle source de caractĂšres aux analyses et (2) dâexplorer le signal Ă©cologique portĂ© par les diffĂ©rents Ă©lĂ©ments de cette rĂ©gion sensorielle dĂ©diĂ©e Ă lâaudition (oreille externe, moyenne et canal cochlĂ©aire du labyrinthe osseux) et Ă lâĂ©quilibrioception (vestibule et canaux semi-circulaires du labyrinthe osseux). La premiĂšre partie de cette thĂšse (I) nous emmĂšne au Togo, oĂč de nombreux restes inĂ©dits de la rĂ©gion auditive de « baleines Ă pattes » (Protocetidae Stromer, 1908) ont Ă©tĂ© rĂ©coltĂ©s. Dâun point de vu anatomique, ces restes fossiles ont permis de documenter et de dĂ©crire pour la premiĂšre fois le stapes, lâincus et le labyrinthe osseux dâun protocĂšte ; des Ă©lĂ©ments indispensables pour comprendre leur audition. Lâanalyse morpho-fonctionnelle indique quâune audition optimale Ă©tait probablement possible dans lâair et dans lâeau pour ces cĂ©tacĂ©s semi-aquatiques. De plus, la morphologie de leur cochlĂ©e indique que leur capacitĂ© auditive Ă©tait proche de celle de leurs cousins terrestres et que les spĂ©cialisations relatives aux capacitĂ©s auditives remarquables des cĂ©tacĂ©s modernes (i.e. sensibilitĂ© aux infra- ou ultrasons) se sont opĂ©rĂ©es aprĂšs la sĂ©paration historique entre les mysticĂštes et les odontocĂštes.La deuxiĂšme partie de ce travail (II) se concentre sur les origines de lâamphibiose au sein des Cetancodonta, Ă travers lâĂ©tude de plusieurs familles fossiles, connues pour leurs liens Ă©troits au milieu aquatique. LâĂ©tude de la rĂ©gion auditive des hippopotamoĂŻdes (Anthracotheriidae + Hippopotamidae), rĂ©vĂšle que lâadaptation Ă un mode de vie semi-aquatique est apparue plusieurs fois, de façon convergente, dans son histoire Ă©volutive et semble dâailleurs indiquer une origine terrestre pour ce groupe. Quant au raoellidĂ© Indohyus, son complexe pĂ©tro-tympanique prĂ©sente une combinaison de caractĂšres suggĂ©rant un certain degrĂ© dâadaptation au milieu aquatique, mais lâĂ©tude fonctionnelle de sa cochlĂ©e indique que ce taxon ne pouvait trĂšs probablement pas entendre de façon efficace sous lâeau. Pour finir, le dernier point de cette thĂšse explore Ă©galement le potentiel phylogĂ©nĂ©tique de la rĂ©gion auditive Ă travers une analyse construite sur des caractĂšres morphologiques du pĂ©treux et du labyrinthe osseux Ă lâĂ©chelle des artiodactyles. Pour la premiĂšre fois, les rĂ©sultats de notre analyse concordent avec ceux des analyses molĂ©culaires. Parmi les points les plus notables, le clade des Cetancodonta est bien soutenu par la morphologie du pĂ©treux et la position dâIndohyus suggĂšre fortement que les raoellidĂ©s sont des cĂ©tacĂ©s.Ainsi, la rĂ©gion auditive sâavĂšre ĂȘtre un Ă©lĂ©ment essentiel dâun point de vu phylogĂ©nĂ©tique et morphofonctionnel. En effet, comme nous avons pu le voir tout au long de cette thĂšse, lorsque la nature complexe et variĂ©e de la rĂ©gion auditive est apprĂ©hendĂ©e dans son ensemble, elle permet dâinfĂ©rer lâĂ©cologie dâun taxon donnĂ© et dâen apprendre davantage sur ses relations de parentĂ©. Par consĂ©quent, la rĂ©gion auditive est encore loin dâavoir dit ses derniers mots... et nous nâavons pas encore fini dâen entendre parler.The discovery by both molecular biology and palaeontological data that cetaceans are artiodactyls constitutes one of the major breakthroughs in mammalâs evolutionary history of the past 30 years. However, no consensus has yet been reached regarding the basal relationship within the enlarged Artiodactyla clade and major questions of its evolutionary history remain to be solved. This thesis explores a promising source of phylogenetic characters: the auditory region (petrosal bone, tympanic bulla, middle ear ossicles, inner ear) from the new perspectives offered by ”CT Scan imaging.The main objectives of this thesis are (1) to determine the phylogenetic signal carried by the auditory region in artiodactyls in order to provide a new source of characters to the analyses and (2) to explore the ecological signal carried by the different elements of this sensory region dedicated to hearing (outer ear, middle ear and cochlear canal of the bonny labyrinth) and to equilibrioception (vestibule and semicircular canals of the bony labyrinth).The first part of this thesis (I) brings us to Togo, where many fossil remains of the auditory region of ancient âlegged whalesâ (Protocetida Stromer 1908) have been collected. From an anatomical viewpoint, these fossil remains document a nearly complete petrotympanic complex and allowed us to describe for the first time, the stapes, incus and bony labyrinth of a protocetid whale, which are crucial elements to understand their hearing. Morphofunctional analysis indicates that optimal hearing was probably possible both in air and underwater for these semi-aquatic whales. In addition, the morphology of their cochlea indicates that their hearing ability was close to that of their terrestrial kin and that the specializations related to the remarkable hearing abilities of modern cetaceans (i.e. sensitivity to infra- or ultrasound) occurred after the historical separation between mysticetes and odontocetes.The second part of this work (II) focuses on the origins of amphibiosis in Cetancodonta, through the study of several fossil families, known for their potamophilous tendencies. The study of the auditory region of hippopotamoids (Anthracotheriidae + Hippopotamidae) reveals that adaptation to a semi-aquatic lifestyle has emerged several times (i.e. in a convergent way) in its evolutionary history and seems to indicate a terrestrial origin for this group. As for the raoellid Indohyus, its petro-tympanic complex presents a combination of features suggesting some degree of adaptation to the aquatic environment, but the functional study of its cochlea indicates that this taxon probably could not hear efficiently underwater.The last point of this thesis explores the phylogenetic potential of the auditory region through an analysis built upon morphological characters of the petrosal and bony labyrinth at Artiodactyla scale. For the first time, the results of our analysis are consistent with that of molecular analyses. Among the most notable points, the Cetancodonta clade is well supported by the morphology of the petrosal and Indohyusâ position strongly suggests that raoellids are cetaceans.Thus, the auditory region turns out to be an essential element from a phylogenetic and morphofunctional viewpoint. Indeed, as we have seen throughout this thesis, when the complex and multifaceted nature of the auditory region is apprehended as a whole, it allows to infer the ecology of a given taxon and to clarify its phylogenetic relationships. Thus, the auditory region is still far from having said its last words⊠and we are not done hearing about it yet
Région auditive des Artiodactyles : signal phylogénétique et écologique
The discovery by both molecular biology and palaeontological data that cetaceans are artiodactyls constitutes one of the major breakthroughs in mammalâs evolutionary history of the past 30 years. However, no consensus has yet been reached regarding the basal relationship within the enlarged Artiodactyla clade and major questions of its evolutionary history remain to be solved. This thesis explores a promising source of phylogenetic characters: the auditory region (petrosal bone, tympanic bulla, middle ear ossicles, inner ear) from the new perspectives offered by ”CT Scan imaging.The main objectives of this thesis are (1) to determine the phylogenetic signal carried by the auditory region in artiodactyls in order to provide a new source of characters to the analyses and (2) to explore the ecological signal carried by the different elements of this sensory region dedicated to hearing (outer ear, middle ear and cochlear canal of the bonny labyrinth) and to equilibrioception (vestibule and semicircular canals of the bony labyrinth).The first part of this thesis (I) brings us to Togo, where many fossil remains of the auditory region of ancient âlegged whalesâ (Protocetida Stromer 1908) have been collected. From an anatomical viewpoint, these fossil remains document a nearly complete petrotympanic complex and allowed us to describe for the first time, the stapes, incus and bony labyrinth of a protocetid whale, which are crucial elements to understand their hearing. Morphofunctional analysis indicates that optimal hearing was probably possible both in air and underwater for these semi-aquatic whales. In addition, the morphology of their cochlea indicates that their hearing ability was close to that of their terrestrial kin and that the specializations related to the remarkable hearing abilities of modern cetaceans (i.e. sensitivity to infra- or ultrasound) occurred after the historical separation between mysticetes and odontocetes.The second part of this work (II) focuses on the origins of amphibiosis in Cetancodonta, through the study of several fossil families, known for their potamophilous tendencies. The study of the auditory region of hippopotamoids (Anthracotheriidae + Hippopotamidae) reveals that adaptation to a semi-aquatic lifestyle has emerged several times (i.e. in a convergent way) in its evolutionary history and seems to indicate a terrestrial origin for this group. As for the raoellid Indohyus, its petro-tympanic complex presents a combination of features suggesting some degree of adaptation to the aquatic environment, but the functional study of its cochlea indicates that this taxon probably could not hear efficiently underwater.The last point of this thesis explores the phylogenetic potential of the auditory region through an analysis built upon morphological characters of the petrosal and bony labyrinth at Artiodactyla scale. For the first time, the results of our analysis are consistent with that of molecular analyses. Among the most notable points, the Cetancodonta clade is well supported by the morphology of the petrosal and Indohyusâ position strongly suggests that raoellids are cetaceans.Thus, the auditory region turns out to be an essential element from a phylogenetic and morphofunctional viewpoint. Indeed, as we have seen throughout this thesis, when the complex and multifaceted nature of the auditory region is apprehended as a whole, it allows to infer the ecology of a given taxon and to clarify its phylogenetic relationships. Thus, the auditory region is still far from having said its last words⊠and we are not done hearing about it yet.La mise en Ă©vidence par la biologie molĂ©culaire et par les donnĂ©es palĂ©ontologiques de l'appartenance des cĂ©tacĂ©s au groupe des artiodactyles constitue une des avancĂ©es majeures de ces 30 derniĂšres annĂ©es en mammalogie. Il n'y a cependant pas Ă l'heure actuelle de consensus quant aux relations phylogĂ©nĂ©tiques basales des artiodactyles fondĂ©es sur des caractĂšres morphologiques et l'histoire Ă©volutive du groupe est de fait, ponctuĂ©e de nombreux points d'interrogation. Cette thĂšse explore une source de caractĂšres phylogĂ©nĂ©tiques prometteuse : la rĂ©gion auditive (os pĂ©treux, bulle auditive, osselets de l'oreille moyenne, oreille interne) Ă partir notamment des nouvelles perspectives offertes par l'imagerie ”CT Scan. Les principaux objectifs de cette thĂšse sont (1) de dĂ©terminer le signal phylogĂ©nĂ©tique portĂ© par la rĂ©gion auditive chez les artiodactyles afin dâapporter une nouvelle source de caractĂšres aux analyses et (2) dâexplorer le signal Ă©cologique portĂ© par les diffĂ©rents Ă©lĂ©ments de cette rĂ©gion sensorielle dĂ©diĂ©e Ă lâaudition (oreille externe, moyenne et canal cochlĂ©aire du labyrinthe osseux) et Ă lâĂ©quilibrioception (vestibule et canaux semi-circulaires du labyrinthe osseux). La premiĂšre partie de cette thĂšse (I) nous emmĂšne au Togo, oĂč de nombreux restes inĂ©dits de la rĂ©gion auditive de « baleines Ă pattes » (Protocetidae Stromer, 1908) ont Ă©tĂ© rĂ©coltĂ©s. Dâun point de vu anatomique, ces restes fossiles ont permis de documenter et de dĂ©crire pour la premiĂšre fois le stapes, lâincus et le labyrinthe osseux dâun protocĂšte ; des Ă©lĂ©ments indispensables pour comprendre leur audition. Lâanalyse morpho-fonctionnelle indique quâune audition optimale Ă©tait probablement possible dans lâair et dans lâeau pour ces cĂ©tacĂ©s semi-aquatiques. De plus, la morphologie de leur cochlĂ©e indique que leur capacitĂ© auditive Ă©tait proche de celle de leurs cousins terrestres et que les spĂ©cialisations relatives aux capacitĂ©s auditives remarquables des cĂ©tacĂ©s modernes (i.e. sensibilitĂ© aux infra- ou ultrasons) se sont opĂ©rĂ©es aprĂšs la sĂ©paration historique entre les mysticĂštes et les odontocĂštes.La deuxiĂšme partie de ce travail (II) se concentre sur les origines de lâamphibiose au sein des Cetancodonta, Ă travers lâĂ©tude de plusieurs familles fossiles, connues pour leurs liens Ă©troits au milieu aquatique. LâĂ©tude de la rĂ©gion auditive des hippopotamoĂŻdes (Anthracotheriidae + Hippopotamidae), rĂ©vĂšle que lâadaptation Ă un mode de vie semi-aquatique est apparue plusieurs fois, de façon convergente, dans son histoire Ă©volutive et semble dâailleurs indiquer une origine terrestre pour ce groupe. Quant au raoellidĂ© Indohyus, son complexe pĂ©tro-tympanique prĂ©sente une combinaison de caractĂšres suggĂ©rant un certain degrĂ© dâadaptation au milieu aquatique, mais lâĂ©tude fonctionnelle de sa cochlĂ©e indique que ce taxon ne pouvait trĂšs probablement pas entendre de façon efficace sous lâeau. Pour finir, le dernier point de cette thĂšse explore Ă©galement le potentiel phylogĂ©nĂ©tique de la rĂ©gion auditive Ă travers une analyse construite sur des caractĂšres morphologiques du pĂ©treux et du labyrinthe osseux Ă lâĂ©chelle des artiodactyles. Pour la premiĂšre fois, les rĂ©sultats de notre analyse concordent avec ceux des analyses molĂ©culaires. Parmi les points les plus notables, le clade des Cetancodonta est bien soutenu par la morphologie du pĂ©treux et la position dâIndohyus suggĂšre fortement que les raoellidĂ©s sont des cĂ©tacĂ©s.Ainsi, la rĂ©gion auditive sâavĂšre ĂȘtre un Ă©lĂ©ment essentiel dâun point de vu phylogĂ©nĂ©tique et morphofonctionnel. En effet, comme nous avons pu le voir tout au long de cette thĂšse, lorsque la nature complexe et variĂ©e de la rĂ©gion auditive est apprĂ©hendĂ©e dans son ensemble, elle permet dâinfĂ©rer lâĂ©cologie dâun taxon donnĂ© et dâen apprendre davantage sur ses relations de parentĂ©. Par consĂ©quent, la rĂ©gion auditive est encore loin dâavoir dit ses derniers mots... et nous nâavons pas encore fini dâen entendre parler
Covenant breaking : a way out of the dead-end according to the Deutero-Isaiah (ls 52,13 - 53,12)
Au dĂ©but de lâExil babylonien, les prophĂštes expliquent la correction infligĂ©e par Nabuchodonosor au peuple de Juda comme un chĂątiment voulu par YHWH. Leur vocabulaire se fait alors riche en termes techniques de la rupture dâalliance. La 1° partie de ce travail prĂ©sente une brĂšve synthĂšse de lâhistoire de la recherche sur la thĂ©ologie de lâalliance et son lien avec des traitĂ©s de vassalitĂ© du Proche-Orient ancien. La 2° partie Ă©tudie le voc. de la rupture de lâalliance en Jr, Ăz mais aussi dans le Dt- Ăs afin de spĂ©cifier son usage Ă la fin de lâExil. La 3° partie sâarrĂȘte sur la section dâĂs 52,13 - 53,12 et son paradoxe : 2 verbes hĂ©breux de la rupture dâalliance au service dâun message dâespĂ©rance. LâĂ©tude linguistique et sĂ©mantique de ce passage rĂ©vĂšle une notion de fin explicite de rupture dâalliance. Dans la conclusion, la sortie dâimpasse thĂ©ologique est suivie jusquâĂ la dĂ©couverte dâun lien thĂ©ologique entre les trois derniers chap. du Dt-Ăs : le concept dâalliance Ă©ternelle.The prophets see the Babylonian Exile as a punishment of God. Therefore, they use a rich variety of technical terms to describe the Covenant breaking. The 1st part of this work summarizes the history of research on the Alliance Theology in relation to the ancient Near Eastern vassal treaties. The 2nd part analyzes the words used to express the Covenant breaking in Jer and Ez. It carries on with this study in Dt-Isa as well, in order to tackle the problems posed by the use of the same words for a different purpose at the end of the Exile. Then, the 3rd part focuses on Isa 52:13 â53:12 and its inside paradox : whereas it shows 2 Hebrew verbs typical for the Covenant breaking, its core message speaks of a hopeful future. Through close linguistic and semantic scrutiny, this bright expectation reveals itself as the explicit end of the breaking of the Covenant. The conclusion of the work expounds the new theological idea which provides a way out of this theological dead-end (eternal Alliance)
3D models related to the publication: Early Evolution of the Ossicular Chain in Cetacea: Into the Middle Ear Gears of a Semi-Aquatic Protocetid Whale
International audienceThis contribution contains the 3D models of the ossicles of a protocetid archaeocete from the locality of Kpogamé, Togo, described and figured in the publication of Mourlam and Orliac (2019)