1,721,423 research outputs found
PICCI P, RUGGIERI P, FABBRI N, BIAGINI R, TELLA G, CASADEI R, FERRARO A, DE CRISTOFARO R
No full textThe use of digital videoannotation in teacher training: the teachers’perspectives
Full text linkThe use of digital video offers interesting opportunities in teacher training, particularly the possibilities provided by video annotation, whereby people can add and share comments and opinions on the same videos, even from different places. This exploratory study aims to examine teachers’ perspectives of this technology, taking into account both their explicit and implicit evaluations. Different methods of using video annotation for training are compared, one based on its individual use, another supported by various types of tutorship. The data were collected and analysed first through a quantitative phase, followed by an in-depth qualitative phase. It is pointed out that to make this technology fully operational it is important to address the cultural and psychosocial aspects that control the emotional conditions which arise when one’s teaching behaviour is being observed and assessed
Tutorship e video annotazione: il punto di vista degli insegnanti
No full textThe use of digital video offers interesting opportunities in teacher training, particularly thanks to the possibilities provided by video annotation, whereby people can add and share comments and opinions on the same videos, even from different places. This research study aims at examining teachers’ perspectives on this technology, taking into account both their explicit evaluations and the emotional implications that might characterize their perception. Different methods of using video annotation for training are compared, one based on the individual use as a form of personal reflection, another supported by various types of tutorship. The data were collected and analyzed through an explicit evaluation, an indirect evaluation and shared interpretations in a focus group. It is pointed out that to make this technology fully operational it is important to work on the cultural and psychosocial aspects that control the emotional conditions that arise when one’s teaching behavior is observed and assessed.L’impiego dei video digitali presenta interessanti promesse per la formazione degli insegnanti, in particolare grazie alle poten zialità offerte dalla video annotazione, che consente a più soggetti, anche a distanza, di inserire e condividere commenti e opinioni sugli stessi video. Questo lavoro intende studiare il punto di vista di insegnanti verso questa tecnologia, tenendo conto sia delle loro valutazioni esplicite che di connotazioni più emotive che possono caratterizzare la loro percezione. A questo scopo vengono confrontate diverse modalità d’uso della video annotazione, impiegata da un lato come forma di autoriflessione personale, dall’altro in contesti varia mente supportati da tutorship: con un mentore di fiducia, con una gruppo di pari, con un esperto del mondo accademico. Si sottolinea come, per un’eventuale messa a regime di questa tecnologia, sia importante intervenire anche sugli aspetti culturali e psicosociali che regolano la condizione emotiva che si genera nel rendere oggetto di osservazione e di valutazione il proprio comportamento didattico
Unicameral and aneurysmal bone cysts
No full textOne hundred and seventy-eight cases of unicameral bone cysts (UBC) treated with curettage and bone grafting were compared to 141 cases treated with cortisone injections. The end results were comparable in the two groups. Local recurrence risk factors in the surgical group were active cyst and previous operations. In the other group they were multilocation of the cyst, active cyst, and size of cyst. A new radiographic classification of aneurysmal bone cyst (ABC) is proposed in a report of 198 cases of ABC. The treatment of choice in ABC is surgical and the type (curettage, curettage plus phenole or cryosurgery, resection or hemiresection) is selected on the basis of the radiographic aspect and the rate of growth of the cyst. Radiotherapy is only indicated in inoperable ABC cases
Teachers' perspectives on innovation: tutorship and videoannotation
No full textThe use of digital video offers interesting opportunities in teacher training, particularly thanks to the possibilities provided by video annotation, whereby people can add and share comments and opinions on the same videos, even from different places. This research study aims at examining teachers' perspectives on this technology, taking into account both their explicit evaluations and the emotional implications that might characterize their perception.
Different methods of using video annotation for training are compared, one based on the individual use as a form of personal reflection, another supported by various types of tutorship. The data were collected and analysed through an explicit evaluation, an indirect evaluation and shared interpretations in a focus group. It is pointed out that to make this technology fully operational it is important to work on the cultural and psychosocial aspects that control the emotional conditions that arise when one’s teaching behaviour is observed and assessed
Palliative treatment: selective arterial embolisation for bone metastases.
No full textTreatment options in patients with bone metastases are mostly aimed at palliation. The goals of treatment in these patients are pain control, prevention and treatment of fractures, maintenance of independence and prevention of tumor progression, and improvement of quality of remaining life [1,2]. Traditional palliative treatments include surgery, if the metastatic lesion is accessible, and/or external beam radiation therapy [3,4]. However, all metastatic lesions are progressive, causing bone failure by producing angiogenic and bone-reabsorbing factors [4]. In addition, most, if not all metastatic lesions are hypervascular. Some lesions such as renal and thyroid metastases are highly hypervascular [5–7]. This may cause technical difficulties with respect to the extent of surgery and primary stability for pain relief [2,8,9]
Osteoblastoma of the Sacrum
No full textThis book provides an up-to-date overview on the epidemiology, clinical presentation, and imaging characteristics of sacral tumors, discusses the available treatment options, and reports the published outcomes. The diagnostic roles of conventional radiology, CT, and MRI are thoroughly described and imaging appearances are compared with the histologic features. The coverage of therapeutic approaches includes chemotherapy, radiotherapy, radiosurgery, and surgery (partial or total sacrectomy and spinopelvic reconstruction). Special attention is paid to the specific anatomic constraints that make tumors in this region of the spine more difficult to manage effectively than those in the extremities and the mobile portions of the spine.
All components of the sacrum can give rise to benign or malignant tumors, which pose significant diagnostic and therapeutic challenges. Although these tumors are often diagnosed at an advanced stage, good clinical outcomes may be achieved if an aggressive multidisciplinary approach is used. This book will be of value for a range of practitioners; it will assist in prompt diagnosis and help to overcome lack of familiarity with the required treatment strategies
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