The Advancement of Biomaterials in Regulating Stem Cell Fate.

Stem cells are well-known to have prominent roles in tissue engineering applications. Embryonic stem cells (ESCs) and induced pluripotent stem cells (iPSCs) can differentiate into every cell type in the body while adult stem cells such as mesenchymal stem cells (MSCs) can be isolated from various sources. Nevertheless, an utmost limitation in harnessing stem cells for tissue engineering is the supply of cells. The advances in biomaterial technology allows the establishment of ex vivo expansion systems to overcome this bottleneck. The progress of various scaffold fabrication could direct stem cell fate decisions including cell proliferation and differentiation into specific lineages in vitro. Stem cell biology and biomaterial technology promote synergistic effect on stem cell-based regenerative therapies. Therefore, understanding the interaction of stem cell and biomaterials would allow the designation of new biomaterials for future clinical therapeutic applications for tissue regeneration. This review focuses mainly on the advances of natural and synthetic biomaterials in regulating stem cell fate decisions. We have also briefly discussed how biological and biophysical properties of biomaterials including wettability, chemical functionality, biodegradability and stiffness play their roles

Mediaforschung

Die Mediaforschung bringt Daten und Interpretationen zur Reichweite von Medien und zur Zielgruppenanalyse hervor, die von Medienunternehmen für Strategie, Programmplanung und Werbung benötigt werden. Das Lehrbuch führt in die Funktionen und Strukturen der Mediaforschung ein. Es stellt deren methodologischen Grundlagen vor und erläutert einzelne Methoden für die Medien Fernsehen, Hörfunk, Presse, Internet, Plakat und Kino

Haltung zum Imperialismus 'Parlamentsstudie 1980' ; Teilbericht: 1.2.8

UuStB Koeln(38)-920106890 / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEDEGerman

Meinungen der Jungen-Welt-Leser ueber ihre Tageszeitung im Februar 1976 Schnellinformation

UuStB Koeln(38)-930106287 / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEDEGerman

Zur Nutzung der Sendung 'rund' des DDR-Fernsehens durch junge Werktaetige Parlamentsstudie 1975 ; Zusatzbericht

UuStB Koeln(38)-940106648 / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEDEGerman

Uebernahme und Verwirklichung persoenlicher FDJ-Auftraege Parlamentsstudie 1975 ; Teilbericht II.1.5

UuStB Koeln(38)-940106656 / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEDEGerman

Ceria Nanocrystals Exposing Wide (100) Facets: Structure and Polarity Compensation

Compact CeO2(111) films grown on Ru(0001) can be transformed into well-shaped nanoparticles by annealing them in an oxygen-poor environment. With increasing temperature, the particles undergo a distinct shape evolution that finally leads to crystallites exposing wide (100) facets. The atomic structure of the (100) termination is determined with a combination of high-resolution scanning tunneling microscopy and density functional theory. Two surface reconstructions are identified that are compatible with the need to compensate for the intrinsic dipole of the (100) plane and with a substantial reduction of the oxide material. Our study provides insights into the rarely explored (100) surface of ceria, which can be considered as model system for studying chemical processes on the polar termination of reducible oxides