1,074 research outputs found
Assessing violent nonstate actorness in global politics: a framework for analysis
Cataloged from PDF version of article.This article begins with the assumption that the most important shift that is
taking place in contemporary global politics is the shift in polity power from the
predominance of the state to the rising importance of nonstate actors. It goes on to argue
that disciplinary understandings of this shift and, in particular, the nature of the actors
driving it, remain dispersed. This article aims, therefore, to provide a framework for
evaluating the global political potential—or actorness—of one type of nonstate actor, the
violent nonstate actor, positing it as that most overtly challenging states’ authority, and
therefore with the potential to play a uniquely stimulating role in the shifting of power.
Based on three principles of autonomy, representation and influence, the framework
provides broad criteria for understanding violent nonstate actors, as well as a means for
evaluating violent nonstate actorness and for exploring its potential in global politics
An elastomeric grating coupler
We report on a novel nondestructive and reversible method for coupling free space light to planar optical waveguides. In this method, an elastomeric grating is used to produce an effective refractive index modulation on the surface of the optical waveguide. The external elastomeric grating binds to
the surface of the waveguide with van der Waals forces and makes conformal contact without any applied pressure. As a demonstration of the feasibility of the approach, we use it to measure the refractive index of a silicon oxynitride film. This technique is nondestructive, reversible, low cost
and can easily be applied to the characterization of optical materials for integrated optics
Civil Military Relations Transformed
Cataloged from PDF version of article
COMponent-based Statistical Computing
Standardisierung und Transparenz sind Grundvoraussetzungen für moderne statistische Datenanalyse. Darüberhinaus sind Interaktivität und Reproduzierbarkeit wünschenswert. Im Rahmen dieser Arbeit wird eine Add-in basierte Lösung vorgestellt, die auf Microsofts COM Technologie beruht und versucht die genannten Ziele zu ermöglichen. Tabellenkalkulationen können dabei ein nützliches Werkzeug sein, wenn sie im Zusammenspiel mit statistischen Spezialpaketen zum Einsatz kommen.Modern statistical analysis requires standardization, transparency, interactivity, and reproducibility. This thesis presents an add-in based solution building on Microsoft’s COM technology which aims to fulfil these requirements. We will argue in favor of open and flexible environments within a distributed, i.e. client/server framework. Our emphasize lies on spreadsheets as suitable frontends for add-in based statistical systems
The reform-security dilemma in democratic transitions: the Turkish experience as model?
Cataloged from PDF version of article.In considering the future of budding Middle Eastern democracies, past
experience and scholarship show that a possible outcome for even the most
“successful” ones is some form of imperfect democracy. Based within the
literature on democratic transitions and hybrid regimes, this article explores
possible factors leading to such outcomes. It focuses in particular on reform/
security dilemmas, and the resulting evolution of dual state structures, in
which an unelected and often authoritarian state establishment coexists with
democratic institutions and practices, for example, in countries like Russia,
Iran, or Pakistan. Much of the literature views such duality as an impasse, and
thus considers these countries as trapped within this “hybridness” –
discouraging news both for currently defined “hybrid regimes” and for
countries like Egypt and Tunisia, which are now launching democratization
processes. To better understand the nature and evolution of such regimes, this
article looks at the case of Turkey, first tracing the rise and consolidation of the
Turkish inner state, generally equated with the Turkish armed forces. It then
looks at the apparent diminishing and integration of the inner state through
pacts and coalitions among both civilian and military elements, and calls into
question whether the pessimistic view of permanent illiberalness is inevitable
Diurnal Temperature-Related Dynamics of Glutathione Reductase Activity in Wheat Genotypes Under Drought
The strategically important wheat plant is the most cultivated of cereals. Drought is
one of the main factors adversely affecting its productivity and quality of grain.
Components of the ascorbate-glutathione cycle play an important role in the
antioxidant defence system. The diurnal dynamics of temperature-related
glutathione reductase activity (GR), one of the main components of the antioxidant
defence system, were studied in durum (Barakatli 95, Garagylchyg 2) and bread
(Gobustan, Tale 38) wheat genotypes of contrasting tolerance, when exposed to
sustained soil drought. Glutathione reductase is highly sensitive to glutathione. Leaf
samples were taken at the end of the wax ripening phase at three-hourly intervals
(800, 1100, 1400, 1700), frozen in liquid N2, and kept at -800C. The experiments
indicated that GR activity increased in stressed, tolerant, (Barakatli 95, Gobustan)
and decreased in stressed sensitive varieties (Garagylchyg 2, Tale 38) compared with
watered variants. In the samples taken at 1100, enzyme activity increased in all the
genotypes, compared with the control. However, in the Gobustan genotype the
activity of the enzyme remained almost constant. At the highest temperatures (1400)
GR activity decreased by almost 50% both in durum and bread wheat varieties
compared with the control. At 1700 GR activity increased in durum wheat genotypes
and remained at a low level in bread wheat genotypes. Thus, durum wheat genotypes
have a stronger defence system against unfavourable environmental conditions
compared with bread wheat genotypes
Quantifying intelligence cooperation: The United States International Intelligence Behavior (USIIB) dataset
Cataloged from PDF version of article.This report describes the creation of the United States International Intelligence Behavior dataset (USIIB). The
USIIB represents the first collection of event data specifically intended for exploring in a quantifiable manner
the international intelligence cooperation behaviors of the United States. A total of 293,615 events are recorded
in the USIIB, covering the years 2000–09. The report first provides a detailed description of the steps involved in
building such a dataset, including the development of search terms, the use of a machine coding program
(TABARI – Text Analysis by Augmenting Replacement Instructions) to extract data from wire news releases, and
the extension of an existing coding scheme (CAMEO) to include intelligence behaviors. Following a discussion of
issues related to the reliability and validity of event datasets in general and the USIIB in particular, the report then
includes suggestions and examples for how the data in the current USIIB dataset may be used in order to add to
our understandings of patterns and anomalies in international intelligence cooperation behavior. As a specific
example, it offers results from an empirical test exploring variation in intelligence cooperation behaviors among
democracies and non-democracies, asking specifically whether the United States has been more likely in the early
21st century to cooperate on intelligence matters with democratic states, and finding this not to have been the case.
Finally, it aims to provide a guide for others who would like to extend this dataset to explore intelligence cooperation
activity of other countries or regions
Charge Retention in Quantized Energy Levels of Nanocrystals
Understanding charging mechanisms and charge retention dynamics of
nanocrystal memory devices is important in optimization of device design.
Capacitance spectroscopy on PECVD grown germanium nanocrystals embedded in a
silicon oxide matrix was performed. Dynamic measurements of discharge dynamics
are carried out. Charge decay is modelled by assuming storage of carriers in
the ground states of nanocrystals and that the decay is dominated by direct
tunnelling. Discharge rates are calculated using the theoretical model for
different nanocrystal sizes and densities and are compared with experimental
data. Experimental results agree well with the proposed model and suggest that
charge is indeed stored in the quantized energy levels of the nanocrystals.Comment: 10 pages, 5 figure
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