Search Results - "Kalyvas, N"

International System and Technologies of Rebellion: How the End of the Cold War Shaped Internal Conflict by KALYVAS, STATHIS N., BALCELLS, LAIA

“…Because they are chiefly domestic conflicts, civil wars have been studied primarily from a perspective stressing domestic factors. We ask, instead, whether…”
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Does Warfare Matter? Severity, Duration, and Outcomes of Civil Wars by Balcells, Laia, Kalyvas, Stathis N.

“…Does it matter whether a civil war is fought as a conventional, irregular, or symmetric nonconventional conflict? Put differently, do "technologies of…”
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How “Free” is Free Riding in Civil Wars?: Violence, Insurgency, and the Collective Action Problem by Kalyvas, Stathis N., Kocher, Matthew Adam

“…That rebels face a collective action problem is one of the most widely shared assumptions in the literature on civil wars. The authors argue that the…”
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Ethnic Defection in Civil War by Kalyvas, Stathis N.

“…The study of ethnicity is dominated by constructivist approaches, yet empirical studies of civil war have been oblivious to their insights. In this article,…”
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Aerial Bombing and Counterinsurgency in the Vietnam War by Kocher, Matthew Adam, Pepinsky, Thomas B., Kalyvas, Stathis N.

“…Aerial bombardment has been an important component of counterinsurgency practice since shortly after it became a viable military technology in the early…”
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The Ontology of “Political Violence”: Action and Identity in Civil Wars by Kalyvas, Stathis N.

“…I discuss several conceptual problems raised by current understandings of political violence, especially as they pertain to actions, motivations, and…”
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Micro-Level Studies of Violence in Civil War: Refining and Extending the Control-Collaboration Model by Kalyvas, Stathis N.

“…The article reviews recent advances in the study of violence in civil wars. It provides a brief description of the baseline "control-collaboration" model,…”
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The Dynamics of Violence in Vietnam: An Analysis of the Hamlet Evaluation System (HES) by KALYVAS, STATHIS N., KOCHER, MATTHEW ADAM

“…The authors analyze a unique data source to study the determinants of violence against civilians in a civil war context. During the Vietnam War, the United…”
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Luminescence efficiency of calcium tungstate (CaWO4) under X-ray radiation: Comparison with Gd2O2S:Tb by Michail, C., Valais, I., Fountos, G., Bakas, A., Fountzoula, C., Kalyvas, N., Karabotsos, A., Sianoudis, I., Kandarakis, I.

“…•Α 36.26 mg/cm2 CaWO4 screen was examined under radiographic X-ray energies.•Comparisons with a custom-made PMMA/Gd2O2S:Tb (30.8 mg/cm2) composite film screen…”
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Measurement of the luminescence properties of Gd2O2S:Pr,Ce,F powder scintillators under X-ray radiation by Michail, C., Valais, I., Seferis, I., Kalyvas, N., David, S., Fountos, G., Kandarakis, I.

“…The aim of the present study was to investigate the absolute luminescence efficiency of gadolinium oxysulfide powder scintillators, doped with praseodymium,…”
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Experimental measurement of a high resolution CMOS detector coupled to CsI scintillators under X-ray radiation by Michail, C., Valais, I., Seferis, I., Kalyvas, N., Fountos, G., Kandarakis, I.

“…The purpose of the present study was to assess the information content of structured CsI:Tl scintillating screens, specially treated to be compatible to a CMOS…”
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“New” and “Old” Civil Wars: A Valid Distinction? by Kalyvas, Stathis N.

“…This article questions the prevalent argument that civil wars have fundamentally changed since the end of the cold war. According to this argument, “new” civil…”
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On the response of GdAlO3:Ce powder scintillators by Michail, C., Kalyvas, N., Valais, I., David, S., Seferis, I., Toutountzis, A., Karabotsos, A., Liaparinos, P., Fountos, G., Kandarakis, I.

“…The aim of the present study was to investigate the luminescence efficiency (XLE) of gadolinium aluminum perovskite (GdAlO3:Ce) powder scintillator. This…”
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Evaluation of Gd2O2S:Pr granular phosphor properties for X-ray mammography imaging by David, S., Michail, C., Seferis, I., Valais, I., Fountos, G., Liaparinos, P., Kandarakis, I., Kalyvas, N.

“…Phosphor materials are widely used in X-ray medical imaging detector applications, coupled with suitable photoreceptors. Upon the most demanding imaging…”
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Light emission efficiency and imaging performance of Lu2O3:Eu nanophosphor under X-ray radiography conditions: Comparison with Gd2O2S:Eu by Seferis, I., Michail, C., Valais, I., Zeler, J., Liaparinos, P., Fountos, G., Kalyvas, N., David, S., Stromatia, F., Zych, E., Kandarakis, I., Panayiotakis, G.

“…Nanocrystallic europium-activated lutetium oxide (Lu2O3:Eu) is a strong candidate for use in digital medical imaging applications, due to its spectroscopic and…”
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Detective quantum efficiency (DQE) of high X-ray absorption Lu2O3:Eu thin screens: the role of shape and size of nano- and micro-grains by Seferis, I. E., Michail, C., Zeler, J., Kalyvas, N., Valais, I., Fountos, G., Bakas, A., Kandarakis, I., Zych, E., Panayiotakis, G. S.

“…The study concerned with the current work is to provide a comparative investigation of the detective quantum efficiency (DQE) of Lu 2 O 3 :Eu phosphor screens,…”
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Studying the luminescence efficiency of Lu2O3:Eu nanophosphor material for digital X-ray imaging applications by Kalyvas, N., Liaparinos, P., Michail, C., David, S., Fountos, G., Wójtowicz, M., Zych, E., Kandarakis, I.

“…Scintillator materials are widely used in X-ray medical imaging detector applications, coupled with available photoreceptors like radiographic film or…”
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Light emission efficiency and imaging performance of Gd2O2S:Eu powder scintillator under x‐ray radiography conditions by Michail, C. M., Fountos, G. P., Liaparinos, P. F., Kalyvas, N. E., Valais, I., Kandarakis, I. S., Panayiotakis, G. S.

“…Purpose To evaluate Gd2O2S:Eu powder phosphor as a radiographic image receptor and to compare it to phosphors often used in radiography. Gd2O2S:Eu is…”
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Spatial frequency domain analysis of a commercially available digital dental detector by Anastasiou, A., Papastamati, F., Bakas, A., Michail, C., Koukou, V., Martini, N., Ninos, K., Lavdas, E., Valais, I., Fountos, G., Kandarakis, I., Kalyvas, N.

“…•A dental digital detector was evaluated in spatial frequency domain.•The DQE was calculated for various exposure conditions.•The resolution was found better…”
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Fabrication and Luminescent Properties of Zn–Cu–In–S/ZnS Quantum Dot Films under UV Excitation by Saatsakis, G., Michail, C., Fountzoula, C., Kalyvas, N., Bakas, A., Ninos, K., Fountos, G., Sianoudis, I., Kandarakis, I., Panayiotakis, G.S., Valais, I.

“…Quantum dots (QDs) are quite interesting materials due to their unique chemical and physical properties. ZnCuInS/ZnS QDs can be produced either in hydrophobic…”
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