scholarly journals Governance von Zukunftsversprechen

2006 ◽  
Vol 36 (145) ◽  
pp. 473-496 ◽  
Author(s):  
Petra Schaper-Rinkel
Keyword(s):  
21St Century ◽  
Key Technologies ◽  
Governance Strategies ◽  
Different Dimensions

Nanotechnology counts as one of the key technologies of 21st century with enormous potentials. Until now it is not very clear, which possibilities this technology actually has, it is above all a promise. But this promise didn’t emerge ‘ naturally’, it is the result of certain discourses. The promise of nanotechnology is as well the product as the tool of particular governance strategies. These strategies are investigated in different dimensions.

scholarly journals Editorial on Special Issue “Modern Applications in Optics and Photonics: From Sensing and Analytics to Communication”

2021 ◽  
Vol 11 (4) ◽  
pp. 1589
Author(s):  
Lourdes S. M. Alwis ◽  
Kort Bremer ◽  
Bernhard Roth
Keyword(s):  
Communication Technology ◽  
21St Century ◽  
Optical Communication ◽  
Biomedical Imaging ◽  
Special Issue ◽  
Key Technologies ◽  
Novel Applications

Optics and photonics are among the key technologies of the 21st century and offer the potential for novel applications in areas as diverse as sensing and spectroscopy, analytics, monitoring, biomedical imaging and diagnostics, as well as optical communication technology, among others [...]

The network paradigm of the 21st century and its key technologies

2000 ◽  
Vol 38 (11) ◽  
pp. 94-98 ◽  
Author(s):  
A. Moridera ◽  
K. Murano ◽  
Y. Mochida
Keyword(s):  
21St Century ◽  
Key Technologies

scholarly journals Political framing across disciplines: Evidence from 21st-century experiments

2018 ◽  
Vol 5 (2) ◽  
pp. 205316801878337 ◽  
Author(s):  
Britta C. Brugman ◽  
Christian Burgers
Keyword(s):  
Systematic Review ◽  
21St Century ◽  
Theoretical Concept ◽  
Logical Equivalence ◽  
Multiple Issues ◽  
Different Dimensions ◽  
Gain And Loss ◽  
Political Framing ◽  
Over Time

Twenty-five years after Entman (1993) argued that the framing paradigm was fractured, debates about the value of framing as a theoretical concept are still ongoing. In particular, discussions focus on the use of: (a) equivalence frames (i.e., frames with logical equivalence such as gain and loss frames) versus emphasis frames (i.e., frames that emphasize different dimensions of an issue); and (b) generic frames (frames that are applicable to multiple issues) versus issue-specific frames (frames that are applicable to one issue only). We conducted a systematic review on the use of these frame types in 21st-century political-framing experiments ( N = 372) to establish whether and how scholars’ positions in these debates have changed across disciplines and over time. Results demonstrate that emphasis frames are more popular than equivalence frames, and that a slight majority of frames are issue-specific rather than generic. Moreover, frame preferences differ across disciplines and have hardly changed over time. This study thus shows that debates about what types of frames should be studied have had little influence on scholars’ frame choices across disciplines in previous research on political framing.

Biogenesis of Catalase-Positive Rods in Excretory Duct Cells of Salivary Glands

1976 ◽  
Vol 34 ◽  
pp. 62-63
Author(s):  
Dwight K. Romanovicz ◽  
Jacob S. Hanker
Keyword(s):  
Light Microscopy ◽  
Salivary Glands ◽  
Submandibular Gland ◽  
Excretory Duct ◽  
Exocrine Glands ◽  
Duct Cells ◽  
Peroxidatic Activity ◽  
Microscopic Studies ◽  
Different Dimensions

The presence of catalase-positive rods (Fig. 1) of different dimensions, which frequently have a crystalline appearance by light microscopy, has been reported. They seem to be related to peroxisomes which were characterized morphologically and cytochemically in parotid and other exocrine glands of the rat by Hand in 1973. Our light microscopic studies of these spherical microbodies and rods of different sizes, stained by virtue of the peroxidatic activity of their catalase, indicate that they are almost entirely confined to the cells of the striated and execretory ducts of the submandibular gland in the mouse. The rods were usually noted only in the proximity of the ductal microbodies. The latter frequently showed a tendency to appear in linear close array, or even to be contiguous (Fig. 2). This suggested that the rods could be formed by the fusion of microbodies.

Sign in / Sign up

Export Citation Format

Share Document