Az angliai kutatások eredményei az IKT iskolai használatáról

2006-ban a DfES (Department for Children, Schools and Families) megbízásából a Becta átfogó beszámolót készített az IKT (infokommunikációs technológia) használatának iskolai munkára gyakorolt hatásáról az Egyesült Királyságban. A 2007-ben megjelent tanulmány készítői igyekeztek strukturált módon összegezni mindazokat a megállapításokat és tapasztalatokat, amelyek a témáról készült különböző jellegű publikációkból leszűrhetők voltak

The Ursinus Weekly, November 8, 1965

The Agency presents Susan Starr in concert: Famous pianist accompanied by Lansdowne Symphony • Travel seminar plans in progress • Queen Marianne reigns over Homecoming festivities • Antiqua Players scheduled for November 10 Forum • Federal service exam, December 4 • Pioneering the past an adventure for all • Editorial: Bribery and misrepresentation • Wismer furor reinvestigated: Weekly reporter interviews Mrs. Otterstetter • Omwake and Bach Dormitories: Special lounge accommodations upon Dean\u27s invitation • The Far Corners an oasis from boredom • Letters to the editor • West Chester ekes by Ursinus 4-3 • Ursinus loses Homecoming game: Haverford beats Bears 22-6 • UC outclasses LaSalle • Greek gleaningshttps://digitalcommons.ursinus.edu/weekly/1209/thumbnail.jp

Az angliai kutatások eredményei az IKT iskolai használatáról

2006-ban a DfES (Department for Children, Schools and Families) megbízásából a Becta átfogó beszámolót készített az IKT (infokommunikációs technológia) használatának iskolai munkára gyakorolt hatásáról az Egyesült Királyságban. A 2007-ben megjelent tanulmány készítői igyekeztek strukturált módon összegezni mindazokat a megállapításokat és tapasztalatokat, amelyek a témáról készült különböző jellegű publikációkból leszűrhetők voltak

A social network analysis of social cohesion in a constructed pride: Implications for ex situ reintroduction of the African Lion (Panthera leo)

Animal conservation practices include the grouping of captive related and unrelated individuals to form a social structure which is characteristic of that species in the wild. In response to the rapid decline of wild African lion (Panthera leo) populations, an array of conservational strategies have been adopted. Ex situ reintroduction of the African lion requires the construction of socially cohesive pride structures prior to wild release. This pilot study adopted a social network theory approach to quantitatively assess a captive pride's social structure and the relationships between individuals within them. Group composition (who is present in a group) and social interaction data (social licking, greeting, play) was observed and recorded to assess social cohesion within a released semi-wild pride. UCINET and SOCPROG software was utilised to represent and analyse these social networks. Results indicate that the pride is socially cohesive, does not exhibit random associations, and the role of socially influential keystone individuals is important for maintaining social bondedness within a lion pride. These results are potentially informative for the structure of lion prides, in captivity and in the wild, and could have implications for captive and wild-founder reintroductions

An improved model to study tumor cell autonomous metastasis programs using MTLn3 cells and the Rag2−/− γc−/− mouse

The occurrence of metastases is a critical determinant of the prognosis for breast cancer patients. Effective treatment of breast cancer metastases is hampered by a poor understanding of the mechanisms involved in the formation of these secondary tumor deposits. To study the processes of metastasis, valid in vivo tumor metastasis models are required. Here, we show that increased expression of the EGF receptor in the MTLn3 rat mammary tumor cell-line is essential for efficient lung metastasis formation in the Rag mouse model. EGFR expression resulted in delayed orthotopic tumor growth but at the same time strongly enhanced intravasation and lung metastasis. Previously, we demonstrated the critical role of NK cells in a lung metastasis model using MTLn3 cells in syngenic F344 rats. However, this model is incompatible with human EGFR. Using the highly metastatic EGFR-overexpressing MTLn3 cell-line, we report that only Rag2−/−γc−/− mice, which lack NK cells, allow efficient lung metastasis from primary tumors in the mammary gland. In contrast, in nude and SCID mice, the remaining innate immune cells reduce MTLn3 lung metastasis formation. Furthermore, we confirm this finding with the orthotopic transplantation of the 4T1 mouse mammary tumor cell-line. Thus, we have established an improved in vivo model using a Rag2−/− γc−/− mouse strain together with MTLn3 cells that have increased levels of the EGF receptor, which enables us to study EGFR-dependent tumor cell autonomous mechanisms underlying lung metastasis formation. This improved model can be used for drug target validation and development of new therapeutic strategies against breast cancer metastasis formation

The James Webb Space Telescope Mission

Twenty-six years ago a small committee report, building on earlier studies, expounded a compelling and poetic vision for the future of astronomy, calling for an infrared-optimized space telescope with an aperture of at least $4m$. With the support of their governments in the US, Europe, and Canada, 20,000 people realized that vision as the $6.5m$ James Webb Space Telescope. A generation of astronomers will celebrate their accomplishments for the life of the mission, potentially as long as 20 years, and beyond. This report and the scientific discoveries that follow are extended thank-you notes to the 20,000 team members. The telescope is working perfectly, with much better image quality than expected. In this and accompanying papers, we give a brief history, describe the observatory, outline its objectives and current observing program, and discuss the inventions and people who made it possible. We cite detailed reports on the design and the measured performance on orbit.Comment: Accepted by PASP for the special issue on The James Webb Space Telescope Overview, 29 pages, 4 figure

Letter - Bob Rae to Donald Ziraldo, 1995

A letter from Bob Rae, leader of the NDP, to Donald Ziraldo, discussing the book Anatomy of a Winery. Rae thanks Ziraldo and goes on to mention the significant role Inniskillin Winery has played in making the Ontario Wine industry so successful. Rae also mentions the partnership of the NDP with the industry in order to do "restructuring" and "become internationally competitive." 21 September, 199