Stefan Kruse
Datos Biográficos
| ID | 199745 |
|---|---|
| NOMBRE | Stefan Kruse |
| NOMBRES | Stefan |
| APELLIDO | Kruse |
| FIRMA | KRUSE S |
| AFILIACIONES | Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung |
| ORCID | 0000-0002-8930-9025 |
| VERIFICADO | Sí |
| TOTAL DE OBRAS | 16 |
| TOTAL DE CITAS | 64 |
| TOTAL COMO AUTOR | 16 |
| TOTAL COMO EDITOR | 0 |
| PRIMER AÑO DE PUBLICACIÓN | 2017 |
| AÑO MÁS RECIENTE DE PUBLICACIÓN | 2025 |
| ÍNDICE H | 4 |
The Cool Water Effect
The CW-Condition and Colonialism
This chapter demonstrates that the CW-Condition shaped the dominant form of colonialism, namely “extraction colonialism” under a weak CW-Condition and “settlement colonialism” under a strong CW-Condition. A key conclusion is that the causal arrow in the association between the CW-Condition and colonialism runs from the former to the latter, instead of the other way around.
Unraveling boreal forest composition and drivers across scales in eastern Siberia
The Siberian boreal forest is the largest continuous forest region on Earth and plays a crucial role in regulating global climate. However, the distribution and environmental processes behind this ecosystem are still not well understood. Here, we first develop Sentinel-2-based classified maps to show forest-type distribution in five regions along a southwest-northeast transect in eastern Siberia. Then, we constrain the environmental factors of th…
Arctic amplification causes earlier onset of seasonal tree growth in northeastern Siberia
Although recent warming affects the high-northern latitudes at an unprecedented rate, little is known about its impact on boreal forests because in situ observations from remote ecosystems in Siberia are sparse. Here, we analyse the radial growth and climate sensitivity of 54 Cajander larches ( Larix cajanderi Mayr.) from three sites across the northern treeline ecotone within the Omoloy river basin in northeastern Siberia. Three independent tree…
A Framework for Analysis and Development of Augmented Reality Applications in Science and Engineering Teaching
As augmented reality (AR) becomes a promising technology for use in science and engineering teaching, the need for generally valid criteria and frameworks for the analysis, development, and setup of AR applications arises. In this article, we present an evaluations matrix to analyze current augmented reality approaches for life science teaching (biology, chemistry) and engineering and simultaneously provide directives for future augmented reality…
Non-invariance? An Overstated Problem With Misconceived Causes
Scholars study representative international surveys to understand cross-cultural differences in mentality patterns, which are measured via complex multi-item constructs. Methodologists in this field insist with increasing vigor that detecting “non-invariance” in how a construct’s items associate with each other in different national samples is an infallible sign of encultured in-equivalences in how respondents understand the items. Questioning th…
Against the Mainstream
Our original 2021 SMR article “Non-Invariance? An Overstated Problem with Misconceived Causes” disputes the conclusiveness of non-invariance diagnostics in diverse cross-cultural settings. Our critique targets the increasingly fashionable use of Multi-Group Confirmatory Factor Analysis (MGCFA), especially in its mainstream version. We document—both by mathematical proof and an empirical illustration—that non-invariance is an arithmetic artifact o…
Spring snow cover duration and tundra greenness in the Lena Delta, Siberia
The Lena Delta in Siberia is the largest delta in the Arctic and as a snow-dominated ecosystem particularly vulnerable to climate change. Using the two decades of MODerate resolution Imaging Spectroradiometer satellite acquisitions, this study investigates interannual and spatial variability of snow-cover duration and summer vegetation vitality in the Lena Delta. We approximated snow by the application of the normalized difference snow index and …
Why the Future Is (Still) Democratic
Contradicting the oft-cited "deconsolidation thesis"—the notion of a worldwide decline in democratic support, especially among the young—we demonstrate that there is no global erosion of support for democracy, neither over time nor across generations. The global democratic-support trend is basically flat, with cyclical fluctuations between a very high and stable base level. More important, however, is a global generational shift from authoritaria…
Sensitivity of ecosystem-protected permafrost under changing boreal forest structures
Boreal forests efficiently insulate underlying permafrost. The magnitude of this insulation effect is dependent on forest density and composition. A change therein modifies the energy and water fluxes within and below the canopy. The direct influence of climatic change on forests and the indirect effect through a change in permafrost dynamics lead to extensive ecosystem shifts such as a change in composition or density, which will, in turn, affec…
Relative pollen productivity estimates of savanna taxa from southern Africa and their application to reconstruct shrub encroachment during the last century
To understand the resilience of African savannas to global change, quantitative information on the long-term dynamics of vegetation is required. Past dynamics can be reconstructed with the REVEALS model, which requires pollen productivity estimates (PPE) that are calibrated using surface pollen and vegetation data. Here we calculated PPE values for five savanna taxa using the extended R-value (ERV) model and two pollen dispersal options: the Gaus…
Strong shrub expansion in tundra-taiga, tree infilling in taiga and stable tundra in central Chukotka (north-eastern Siberia) between 2000 and 2017
Vegetation is responding to climate change, which is especially prominent in the Arctic. Vegetation change is manifest in different ways and varies regionally, depending on the characteristics of the investigated area. Although vegetation in some Arctic areas has been thoroughly investigated, central Chukotka (NE Siberia) with its highly diverse vegetation, mountainous landscape and deciduous needle-leaf treeline remains poorly explored, despite …
A Digital Communication Assistance Tool (DCAT) to Obtain Medical History from Foreign-Language Patients
Language barriers play a critical role in the treatment of migrant and refugeepatients. In Germany, primary care interpreters are often not available especially in rural areas or ifpatients demand spontaneous or urgent consultations. Methods : In order to enable patients and theirphysicians to communicate effectively about the current illness history, we developed a digitalcommunication assistance tool (DCAT) for 19 different languages and dialec…
A tale of culture-bound regime evolution
Using a new measure of “comprehensive democracy,” our analysis traces the global democratic trend over the last 116 years, from 1900 until 2016, looking in particular at the centennial trend’s cultural zoning. As it turns out, democracy has been proceeding and continues to differentiate the world’s nations in a strongly culture-bound manner: high levels of democracy remain a distinctive feature of nations in which emancipative values have grown s…
Democracy Confused
A widely neglected phenomenon consists in the fact that large population segments in many countries confuse the absence of democracy with its presence. Significantly, these are also the countries where widespread support for democracy coexists with persistent deficiencies in the latter, including its outright absence. Addressing this puzzle, we introduce a framework to sort out to what extent national populations overestimate their regimes' democ…
Pitfalls in the Study of Democratization
In this issue, Dahlum and Knutsen (D&K) claim to disprove the emancipatory theory of democracy proposed by Inglehart and Welzel (I&W).1 This theory posits that rising emphasis on universal freedoms, or what I&W call ‘emancipative values’, is a major force driving the emergence and survival of democracy. To support their claim, D&K impute country scores to emancipative values for years in which real data are absent.2 These imputations allow them t…
A tale of culture-bound regime evolution
Using a new measure of “comprehensive democracy,” our analysis traces the global democratic trend over the last 116 years, from 1900 until 2016, looking in particular at the centennial trend’s cultural zoning. As it turns out, democracy has been proceeding and continues to differentiate the world’s nations in a strongly culture-bound manner: high levels of democracy remain a distinctive feature of nations in which emancipative values have grown s…
Non-invariance? An Overstated Problem With Misconceived Causes
Scholars study representative international surveys to understand cross-cultural differences in mentality patterns, which are measured via complex multi-item constructs. Methodologists in this field insist with increasing vigor that detecting “non-invariance” in how a construct’s items associate with each other in different national samples is an infallible sign of encultured in-equivalences in how respondents understand the items. Questioning th…
Democracy Confused
A widely neglected phenomenon consists in the fact that large population segments in many countries confuse the absence of democracy with its presence. Significantly, these are also the countries where widespread support for democracy coexists with persistent deficiencies in the latter, including its outright absence. Addressing this puzzle, we introduce a framework to sort out to what extent national populations overestimate their regimes' democ…
Pitfalls in the Study of Democratization
In this issue, Dahlum and Knutsen (D&K) claim to disprove the emancipatory theory of democracy proposed by Inglehart and Welzel (I&W).1 This theory posits that rising emphasis on universal freedoms, or what I&W call ‘emancipative values’, is a major force driving the emergence and survival of democracy. To support their claim, D&K impute country scores to emancipative values for years in which real data are absent.2 These imputations allow them t…
Why the Future Is (Still) Democratic
Contradicting the oft-cited "deconsolidation thesis"—the notion of a worldwide decline in democratic support, especially among the young—we demonstrate that there is no global erosion of support for democracy, neither over time nor across generations. The global democratic-support trend is basically flat, with cyclical fluctuations between a very high and stable base level. More important, however, is a global generational shift from authoritaria…
Against the Mainstream
Our original 2021 SMR article “Non-Invariance? An Overstated Problem with Misconceived Causes” disputes the conclusiveness of non-invariance diagnostics in diverse cross-cultural settings. Our critique targets the increasingly fashionable use of Multi-Group Confirmatory Factor Analysis (MGCFA), especially in its mainstream version. We document—both by mathematical proof and an empirical illustration—that non-invariance is an arithmetic artifact o…
Pitfalls in the Study of Democratization
In this issue, Dahlum and Knutsen (D&K) claim to disprove the emancipatory theory of democracy proposed by Inglehart and Welzel (I&W).1 This theory posits that rising emphasis on universal freedoms, or what I&W call ‘emancipative values’, is a major force driving the emergence and survival of democracy. To support their claim, D&K impute country scores to emancipative values for years in which real data are absent.2 These imputations allow them t…
A tale of culture-bound regime evolution
Using a new measure of “comprehensive democracy,” our analysis traces the global democratic trend over the last 116 years, from 1900 until 2016, looking in particular at the centennial trend’s cultural zoning. As it turns out, democracy has been proceeding and continues to differentiate the world’s nations in a strongly culture-bound manner: high levels of democracy remain a distinctive feature of nations in which emancipative values have grown s…
Democracy Confused
A widely neglected phenomenon consists in the fact that large population segments in many countries confuse the absence of democracy with its presence. Significantly, these are also the countries where widespread support for democracy coexists with persistent deficiencies in the latter, including its outright absence. Addressing this puzzle, we introduce a framework to sort out to what extent national populations overestimate their regimes' democ…
Strong shrub expansion in tundra-taiga, tree infilling in taiga and stable tundra in central Chukotka (north-eastern Siberia) between 2000 and 2017
Vegetation is responding to climate change, which is especially prominent in the Arctic. Vegetation change is manifest in different ways and varies regionally, depending on the characteristics of the investigated area. Although vegetation in some Arctic areas has been thoroughly investigated, central Chukotka (NE Siberia) with its highly diverse vegetation, mountainous landscape and deciduous needle-leaf treeline remains poorly explored, despite …
A Digital Communication Assistance Tool (DCAT) to Obtain Medical History from Foreign-Language Patients
Language barriers play a critical role in the treatment of migrant and refugeepatients. In Germany, primary care interpreters are often not available especially in rural areas or ifpatients demand spontaneous or urgent consultations. Methods : In order to enable patients and theirphysicians to communicate effectively about the current illness history, we developed a digitalcommunication assistance tool (DCAT) for 19 different languages and dialec…
Sensitivity of ecosystem-protected permafrost under changing boreal forest structures
Boreal forests efficiently insulate underlying permafrost. The magnitude of this insulation effect is dependent on forest density and composition. A change therein modifies the energy and water fluxes within and below the canopy. The direct influence of climatic change on forests and the indirect effect through a change in permafrost dynamics lead to extensive ecosystem shifts such as a change in composition or density, which will, in turn, affec…
Relative pollen productivity estimates of savanna taxa from southern Africa and their application to reconstruct shrub encroachment during the last century
To understand the resilience of African savannas to global change, quantitative information on the long-term dynamics of vegetation is required. Past dynamics can be reconstructed with the REVEALS model, which requires pollen productivity estimates (PPE) that are calibrated using surface pollen and vegetation data. Here we calculated PPE values for five savanna taxa using the extended R-value (ERV) model and two pollen dispersal options: the Gaus…
Spring snow cover duration and tundra greenness in the Lena Delta, Siberia
The Lena Delta in Siberia is the largest delta in the Arctic and as a snow-dominated ecosystem particularly vulnerable to climate change. Using the two decades of MODerate resolution Imaging Spectroradiometer satellite acquisitions, this study investigates interannual and spatial variability of snow-cover duration and summer vegetation vitality in the Lena Delta. We approximated snow by the application of the normalized difference snow index and …
Why the Future Is (Still) Democratic
Contradicting the oft-cited "deconsolidation thesis"—the notion of a worldwide decline in democratic support, especially among the young—we demonstrate that there is no global erosion of support for democracy, neither over time nor across generations. The global democratic-support trend is basically flat, with cyclical fluctuations between a very high and stable base level. More important, however, is a global generational shift from authoritaria…
A Framework for Analysis and Development of Augmented Reality Applications in Science and Engineering Teaching
As augmented reality (AR) becomes a promising technology for use in science and engineering teaching, the need for generally valid criteria and frameworks for the analysis, development, and setup of AR applications arises. In this article, we present an evaluations matrix to analyze current augmented reality approaches for life science teaching (biology, chemistry) and engineering and simultaneously provide directives for future augmented reality…
Non-invariance? An Overstated Problem With Misconceived Causes
Scholars study representative international surveys to understand cross-cultural differences in mentality patterns, which are measured via complex multi-item constructs. Methodologists in this field insist with increasing vigor that detecting “non-invariance” in how a construct’s items associate with each other in different national samples is an infallible sign of encultured in-equivalences in how respondents understand the items. Questioning th…
Against the Mainstream
Our original 2021 SMR article “Non-Invariance? An Overstated Problem with Misconceived Causes” disputes the conclusiveness of non-invariance diagnostics in diverse cross-cultural settings. Our critique targets the increasingly fashionable use of Multi-Group Confirmatory Factor Analysis (MGCFA), especially in its mainstream version. We document—both by mathematical proof and an empirical illustration—that non-invariance is an arithmetic artifact o…
Unraveling boreal forest composition and drivers across scales in eastern Siberia
The Siberian boreal forest is the largest continuous forest region on Earth and plays a crucial role in regulating global climate. However, the distribution and environmental processes behind this ecosystem are still not well understood. Here, we first develop Sentinel-2-based classified maps to show forest-type distribution in five regions along a southwest-northeast transect in eastern Siberia. Then, we constrain the environmental factors of th…
Arctic amplification causes earlier onset of seasonal tree growth in northeastern Siberia
Although recent warming affects the high-northern latitudes at an unprecedented rate, little is known about its impact on boreal forests because in situ observations from remote ecosystems in Siberia are sparse. Here, we analyse the radial growth and climate sensitivity of 54 Cajander larches ( Larix cajanderi Mayr.) from three sites across the northern treeline ecotone within the Omoloy river basin in northeastern Siberia. Three independent tree…
The Cool Water Effect
The CW-Condition and Colonialism
This chapter demonstrates that the CW-Condition shaped the dominant form of colonialism, namely “extraction colonialism” under a weak CW-Condition and “settlement colonialism” under a strong CW-Condition. A key conclusion is that the causal arrow in the association between the CW-Condition and colonialism runs from the former to the latter, instead of the other way around.
Geography (7 obras) · Political science (6 obras) · Environmental Science (5 obras) · Law (5 obras) · Law (5 obras) · Physical geography (5 obras) · Climate change (4 obras) · Climate change and permafrost (4 obras) · Computer Science (4 obras) · Democracy (4 obras)