Martin Radtke
Biographic Data
| ID | 1082359 |
|---|---|
| NAME | Martin Radtke |
| GIVEN NAMES | Martin |
| FAMILY NAME | Radtke |
| SIGNATURE | RADTKE M |
| AFFILIATIONS | Federal Institute For Materials Research and Testing |
| ORCID | 0000-0003-4120-2496 |
| VERIFIED | Yes |
| TOTAL WORKS | 10 |
| TOTAL CITATIONS | 24 |
| WORKS AS AUTHOR | 10 |
| WORKS AS EDITOR | 0 |
| FIRST PUBLICATION YEAR | 2009 |
| LATEST PUBLICATION YEAR | 2022 |
| H-INDEX | 3 |
Investigations on fire‐gilding
Fire‐gilding is a historic technique for the application of golden layers on a number of different base materials utilizing a gold amalgam. This technique leaves a significant amount of Hg in the golden layer, giving archeometrists a reliable indicator to identify fire‐gildings. Recent findings on presumably fire‐gilded objects have shown in several cases significantly lower Hg content than previously studied objects. This prompted a synchrotron‐…
Conflict Actors and the International Criminal Court in Colombia
To answer the symposium’s thematic question — ‘Who’s afraid of the International Criminal Court?’ — we offer an explanation as to how deterrence might work in the case of the International Criminal Court’s (ICC) preliminary examination cases. We argue that, as long as conflict actors are aware of the Court’s influence and wary of the social and political repercussions associated with the broader anti-impunity norm, the Court can exert influence o…
Why Kill Deposed Leaders? Regime Types and Post-tenure Fates
Past research has argued that leaders care about their post-tenure fates and that consideration of these circumstances can motivate policy choices. But, so far, there has been little theorizing on why some successors let leaders walk away while others meet more dismal ends. I provide a regime-based argument for this variation that predicts that personalist leaders will be more likely to experience negative post-tenure fates (exile, imprisonment, …
Political Relations, Leader Stability, and Economic Coercion
Countries use economic sanctions as a way to force their opponents to make policy concessions. Such external pressure may, as the designers of sanctions often intend, affect the degree of domestic support for the target's political leaders. It may even threaten the leaders’ survival in office. We investigate how these dual pressures—preference for policy concessions and concern about target leaders’ political future—shape the use of sanctions in …
Fighting the Hydra
In the past 25 years, the United Nations has sanctioned 28 rebel groups in 13 civil wars. Have the UN sanctions been effective in meeting the goal of conflict reduction? In this article, we argue that UN sanctions are effective to the extent that they can constrain and weaken some rebel groups. But this constraining effect can only occur when UN sanctions curtail rebel groups' ability to adapt. For less adaptable groups, UN sanctions can trigger …
Inca figurines from the Ethnologisches Museum in Berlin
Fourteen hollow and one cast anthropomorphic and zoomorphic figurines produced in Incan times for ritual offerings from the Ethnologisches Museum in Berlin were selected to investigate the technologies and alloys used for their fabrication with portable optical microscopy and non-destructive XRF elemental analysis. This group of gold and silver figurines includes typical specimens of the Inca production, such as the four silver figurines from the…
Synchrotron Radiation-Induced X-Ray Fluorescence (SRXRF) Analyses Of The Bernstorf Gold
The gold finds from Bernstorf, in the Freising district of Bavaria, were discovered in 1998, in the area of a Bronze Age settlement. First analyses with X-ray fluorescence (XRF) revealed gold of an unusually high purity grade, which was explained by the use of cementation techniques. A newer analysis with laser ablation inductively coupled plasma mass spectrometry (LA–ICP–MS) indicated an even higher purity. The analytical results were the starti…
The Sarmizegetusa bracelets
We present the authentication and analysis of these beautiful Dacian bracelets of the first century BC, originally pillaged by treasure hunters and recovered thanks to an international crime chase. They were originally fashioned from gold panned from the rivers or dug from the mines of Transylvania and hammered into the form of coiled snakes. The lack of context is the greatest loss, but a votive purpose is likely given their proximity to the gre…
Synchrotron Radiation Induced X-Ray Fluorescence for the characterization of ancient gold objects
Due to their non-destructive character, X-ray analytical methods are widespread in the field of archaeometry. In the present study, the use of synchrotron radiation induced X-ray fluorescence analysis (SR-XRF) is illustrated on three examples: a silver point drawing of Jan van Eyck, the Hiddensee Gold Treasure, and the Sky Disc of Nebra. The possibility to analyse large objects in normal atmosphere results in information regarding their origin, u…
Dacian bracelets and Transylvanian gold
The recovery of the Dacian gold bracelets was the most thrilling archaeological event of the last years in Romania. The artefacts are exhibited in the Historical Treasure section of the National History museum of Romania, Bucharest, being recovered from the international antique markets through a concerted effort of the Romanian, French, and German authorities.This paper reviews the X-Ray Fluorescence (XRF) analyses carried out on these exquisite…
Political Relations, Leader Stability, and Economic Coercion
Countries use economic sanctions as a way to force their opponents to make policy concessions. Such external pressure may, as the designers of sanctions often intend, affect the degree of domestic support for the target's political leaders. It may even threaten the leaders’ survival in office. We investigate how these dual pressures—preference for policy concessions and concern about target leaders’ political future—shape the use of sanctions in …
Why Kill Deposed Leaders? Regime Types and Post-tenure Fates
Past research has argued that leaders care about their post-tenure fates and that consideration of these circumstances can motivate policy choices. But, so far, there has been little theorizing on why some successors let leaders walk away while others meet more dismal ends. I provide a regime-based argument for this variation that predicts that personalist leaders will be more likely to experience negative post-tenure fates (exile, imprisonment, …
Fighting the Hydra
In the past 25 years, the United Nations has sanctioned 28 rebel groups in 13 civil wars. Have the UN sanctions been effective in meeting the goal of conflict reduction? In this article, we argue that UN sanctions are effective to the extent that they can constrain and weaken some rebel groups. But this constraining effect can only occur when UN sanctions curtail rebel groups' ability to adapt. For less adaptable groups, UN sanctions can trigger …
Investigations on fire‐gilding
Fire‐gilding is a historic technique for the application of golden layers on a number of different base materials utilizing a gold amalgam. This technique leaves a significant amount of Hg in the golden layer, giving archeometrists a reliable indicator to identify fire‐gildings. Recent findings on presumably fire‐gilded objects have shown in several cases significantly lower Hg content than previously studied objects. This prompted a synchrotron‐…
The Sarmizegetusa bracelets
We present the authentication and analysis of these beautiful Dacian bracelets of the first century BC, originally pillaged by treasure hunters and recovered thanks to an international crime chase. They were originally fashioned from gold panned from the rivers or dug from the mines of Transylvania and hammered into the form of coiled snakes. The lack of context is the greatest loss, but a votive purpose is likely given their proximity to the gre…
Conflict Actors and the International Criminal Court in Colombia
To answer the symposium’s thematic question — ‘Who’s afraid of the International Criminal Court?’ — we offer an explanation as to how deterrence might work in the case of the International Criminal Court’s (ICC) preliminary examination cases. We argue that, as long as conflict actors are aware of the Court’s influence and wary of the social and political repercussions associated with the broader anti-impunity norm, the Court can exert influence o…
Synchrotron Radiation Induced X-Ray Fluorescence for the characterization of ancient gold objects
Due to their non-destructive character, X-ray analytical methods are widespread in the field of archaeometry. In the present study, the use of synchrotron radiation induced X-ray fluorescence analysis (SR-XRF) is illustrated on three examples: a silver point drawing of Jan van Eyck, the Hiddensee Gold Treasure, and the Sky Disc of Nebra. The possibility to analyse large objects in normal atmosphere results in information regarding their origin, u…
Synchrotron Radiation Induced X-Ray Fluorescence for the characterization of ancient gold objects
Due to their non-destructive character, X-ray analytical methods are widespread in the field of archaeometry. In the present study, the use of synchrotron radiation induced X-ray fluorescence analysis (SR-XRF) is illustrated on three examples: a silver point drawing of Jan van Eyck, the Hiddensee Gold Treasure, and the Sky Disc of Nebra. The possibility to analyse large objects in normal atmosphere results in information regarding their origin, u…
Dacian bracelets and Transylvanian gold
The recovery of the Dacian gold bracelets was the most thrilling archaeological event of the last years in Romania. The artefacts are exhibited in the Historical Treasure section of the National History museum of Romania, Bucharest, being recovered from the international antique markets through a concerted effort of the Romanian, French, and German authorities.This paper reviews the X-Ray Fluorescence (XRF) analyses carried out on these exquisite…
The Sarmizegetusa bracelets
We present the authentication and analysis of these beautiful Dacian bracelets of the first century BC, originally pillaged by treasure hunters and recovered thanks to an international crime chase. They were originally fashioned from gold panned from the rivers or dug from the mines of Transylvania and hammered into the form of coiled snakes. The lack of context is the greatest loss, but a votive purpose is likely given their proximity to the gre…
Inca figurines from the Ethnologisches Museum in Berlin
Fourteen hollow and one cast anthropomorphic and zoomorphic figurines produced in Incan times for ritual offerings from the Ethnologisches Museum in Berlin were selected to investigate the technologies and alloys used for their fabrication with portable optical microscopy and non-destructive XRF elemental analysis. This group of gold and silver figurines includes typical specimens of the Inca production, such as the four silver figurines from the…
Synchrotron Radiation-Induced X-Ray Fluorescence (SRXRF) Analyses Of The Bernstorf Gold
The gold finds from Bernstorf, in the Freising district of Bavaria, were discovered in 1998, in the area of a Bronze Age settlement. First analyses with X-ray fluorescence (XRF) revealed gold of an unusually high purity grade, which was explained by the use of cementation techniques. A newer analysis with laser ablation inductively coupled plasma mass spectrometry (LA–ICP–MS) indicated an even higher purity. The analytical results were the starti…
Political Relations, Leader Stability, and Economic Coercion
Countries use economic sanctions as a way to force their opponents to make policy concessions. Such external pressure may, as the designers of sanctions often intend, affect the degree of domestic support for the target's political leaders. It may even threaten the leaders’ survival in office. We investigate how these dual pressures—preference for policy concessions and concern about target leaders’ political future—shape the use of sanctions in …
Fighting the Hydra
In the past 25 years, the United Nations has sanctioned 28 rebel groups in 13 civil wars. Have the UN sanctions been effective in meeting the goal of conflict reduction? In this article, we argue that UN sanctions are effective to the extent that they can constrain and weaken some rebel groups. But this constraining effect can only occur when UN sanctions curtail rebel groups' ability to adapt. For less adaptable groups, UN sanctions can trigger …
Why Kill Deposed Leaders? Regime Types and Post-tenure Fates
Past research has argued that leaders care about their post-tenure fates and that consideration of these circumstances can motivate policy choices. But, so far, there has been little theorizing on why some successors let leaders walk away while others meet more dismal ends. I provide a regime-based argument for this variation that predicts that personalist leaders will be more likely to experience negative post-tenure fates (exile, imprisonment, …
Conflict Actors and the International Criminal Court in Colombia
To answer the symposium’s thematic question — ‘Who’s afraid of the International Criminal Court?’ — we offer an explanation as to how deterrence might work in the case of the International Criminal Court’s (ICC) preliminary examination cases. We argue that, as long as conflict actors are aware of the Court’s influence and wary of the social and political repercussions associated with the broader anti-impunity norm, the Court can exert influence o…
Investigations on fire‐gilding
Fire‐gilding is a historic technique for the application of golden layers on a number of different base materials utilizing a gold amalgam. This technique leaves a significant amount of Hg in the golden layer, giving archeometrists a reliable indicator to identify fire‐gildings. Recent findings on presumably fire‐gilded objects have shown in several cases significantly lower Hg content than previously studied objects. This prompted a synchrotron‐…
Archaeology (4 works) · Cultural Heritage Materials Analysis (4 works) · Materials Science (4 works) · X-ray Spectroscopy and Fluorescence Analysis (4 works) · Geography (3 works) · Political Conflict and Governance (3 works) · Political science (3 works) · Treasure (3 works) · Ancient history (2 works) · Archaeology and ancient environmental studies (2 works)