7 results on '"Microscopic Anatomy"'
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2. History of reptile placentology, part III: Giacomini's 1891 histological monograph on lizard placentation.
- Author
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Blackburn, D.G., Paulesu, L., Avanzati, A.M., and Roth, M.
- Subjects
REPTILE anatomy ,REPTILE physiology ,ANATOMY -- History ,HISTORY of physiology ,ANIMALS ,HISTORY ,HUMAN reproduction - Abstract
By the 1890s, placental arrangements had been documented macroscopically in lizards and fishes, but placental studies on such species lagged far behind research on mammals. In 1891, the biologist Ercole Giacomini (at the University of Siena, Italy) published the first histological analysis of a reptile placenta. Focusing on a placentotrophic lizard (Chalcides chalcides) with a morphologically complex placenta, Giacomini documented the histological and cellular bases for placental nutrient transfer and gas exchange. In conjunction with a follow-up study in 1906, he demonstrated that placental structure is correlated with function and can vary dramatically between related species. Giacomini's work was highly influential in showing that placentation in lizards had converged evolutionarily on that of mammals, while establishing reptile placentology as a highly promising area for future research. [ABSTRACT FROM AUTHOR] more...
- Published
- 2017
- Full Text
- View/download PDF
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3. Interactive teaching enhances students' physiological arousal during online learning.
- Author
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Gellisch, Morris, Morosan-Puopolo, Gabriela, Wolf, Oliver T., Moser, Dirk A., Zaehres, Holm, and Brand-Saberi, Beate
- Subjects
ONLINE education ,AMYLASES ,DIGITAL learning ,HEART beat ,HISTOLOGY ,LEARNING - Abstract
The pure transfer of face-to-face teaching to a digital learning environment can be accompanied by a significant reduction in the physiological arousal of students, which in turn can be associated with passivity during the learning process, often linked to insufficient levels of concentration and engagement in the course work. Therefore, the aim of this study was to investigate whether students' psychobiological stress responses can be enhanced in the context of anatomical online learning and how increased physiological parameters correlate with characteristics of learning experiences in a digital learning environment. Healthy first-year medical students (n = 104) experienced a regular practical course in Microscopic Anatomy either in face-to-face learning, in passive online learning or in an interaction-enhanced version of online learning. Compared to passive online learning, students engaged in the interaction-enhanced version of online learning displayed a significantly reduced Heart Rate Variability (P 0.001, partial η
2 = 0.381) along with a strong increase in salivary cortisol (P 0.001, partial η2 = 0.179) and salivary alpha-amylase activity (P 0.001, partial η2 = 0.195). These results demonstrated that the physiological arousal of students engaged in online learning can be enhanced via interactive teaching methods and pointed towards clear correlations between higher physiological responses and elementary criteria of learning experience such as engagement and attention. • Active online teaching increased hormone/protein-based stress markers of students. • Interactive online teaching lowered Heart Rate Variability of students. • A higher physiological arousal was associated with greater levels of engagement and attention. • Greater physiological arousals were associated with increased achievement anxiety. [ABSTRACT FROM AUTHOR] more...- Published
- 2023
- Full Text
- View/download PDF
4. Anatomia e histologia do trato urinário do macaco-prego (Sapajus apella).
- Author
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Lima, Ana R., Guimarães, Sheyla B., Branco, Érika, Giese, Elane G., Muniz, José A. P. C., Ricci, Rose Eli G., and Miglino, Maria A.
- Abstract
Copyright of Pesquisa Veterinaria Brasileira is the property of Colegio Brasileiro de Patologia Animal - CBPA and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) more...
- Published
- 2016
- Full Text
- View/download PDF
5. MyMiCROscope—Intelligent virtual microscopy in a blended learning model at Ulm University.
- Author
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Schmidt, C., Reinehr, M., Leucht, O., Behrendt, N., Geiler, S., and Britsch, S.
- Subjects
VIRTUAL microscopy ,STOCHASTIC learning models ,BLENDED learning ,FACE-to-face communication ,MEDICAL education ,SOCIAL interaction ,HIGHER education - Abstract
Summary: The growing diversity among students and the rapid increase in new technologies entering the system of higher education, demand reconsideration of traditional learning methods. To improve the individual student''s learning situation we developed and integrated a novel virtual microscope, MyMiCROscope, into a face-to-face approach for teaching microscopic anatomy. The intelligent virtual microscope has not only enabled self-directed learning of the students at their individual learning speed independent of time and place but also offered new possibilities to interact with the user because it implements systematic annotations accessible from different operational levels. Furthermore the alteration of a sole instructor-led course into a blended learning model resulted in a change of the learning behaviour of the students: group work and social interactions were facilitated. The results of this study show the advantages that intelligent virtual microscopy incorporates for self-directed learning and that blended learning in undergraduate medical education is able to fulfil the individual needs of the students and support social interactions without disregarding practical skills. [Copyright &y& Elsevier] more...
- Published
- 2011
- Full Text
- View/download PDF
6. MICROSCOPIC ANATOMY OF FOOT OF THE SPINY TOP SHELL, BATILLUS CORNUTUS (LIGHTFOOT, 1786) (GASTROPODA: TURBINIDAE).
- Author
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Gui Kwon Jung, Jung Jun Park, Jae Woo Lee, and Jung Sick Lee
- Abstract
Foot structures of the spiny top shell, Batillus cornutus were investigated by light and transmission electron microscopy. The foot was composed of epithelial layer, connective tissue layer, and muscular layer from outside inward. The epithelial layer was multiple-folded and simple and was composed mostly of columnar and mucous cells. Epithelial layer thickness was approximately 40 µm in the pedal body and approximately 30 µm in the opercular zone. Distribution of mucous cells in the epithelial layer was found to be higher in the opercular zone than those in the pedal body. Mucous cells contained acidic material abundant in sulfate and carboxylate group, from the results of AF-AB reaction. From TEM observation, the epithelial layer is composed of epithelial cell, ciliated cell, absorptive cell, and secretory cell. Secretory cells can be classified into six types (A, B, C, D, E, F) in accordance with the shapes and ultrastructural characteristics of secretory granule. Type A secretory cell is the most abundant cell of the six types of secretory cells. The type of muscle fibers was mostly smooth muscle fibers. Muscle fibers can be divided into two types, one that is composed only of thin microfilaments and the other composed of thin and thick microfilaments. [ABSTRACT FROM AUTHOR] more...
- Published
- 2006
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7. The academic career of Max Clara in Padova.
- Author
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Emmi, Aron, Macchi, Veronica, Porzionato, Andrea, Brenner, Erich, and De Caro, Raffaele
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EDUCATORS ,COLLEGE teachers ,HISTORICAL libraries ,ACTIVE learning ,SCHOOL year - Abstract
The aim of the following investigation was to explore Max Clara's (1899–1966) early academic activity in Italy at the University of Padua. While Clara's career during the National-Socialist Party dictatorship was extensively studied in literature, little to no information is available regarding Clara's early academic years, with particular regard to his role at the University of Padua during his time in Italy. The scientific and didactic activities held by Clara during this timespan could sheld a light on his appointment as Professor of Anatomy at the University of Leipzig, clarifying the academic motives and political pretences behind it. To this end, systematic research has been conducted at the Historical Archives of the University of Padua, where our findings have revealed detailed records of Clara's teaching and research activity from 1929 to 1935. Our findings confirm that Clara held a paid position as free lecturer at the University of Padua, and was likely under the tutelage of Prof. Tullio Terni, who directed the Institute of Histology and General Embryology until 1933. Max Clara's didactic activity focused mainly on the teaching of microscopical anatomy, which was distinct from histology and considered within the field of anatomy. Even though Clara had a minimal amount of lectures assigned, our records suggest that he conducted part of his research in the laboratories of the University of Padua whilst also working independently in his private medical practice in Blumau (South Tyrol). It is therefore possible to speculate that the teaching of Microscopical Anatomy, rather than Histology, could have represented the pretext for appointing Clara as Professor of Anatomy, justifying his new, politically-driven role at Leipzig. [ABSTRACT FROM AUTHOR] more...
- Published
- 2021
- Full Text
- View/download PDF
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