The Early Spörer Minimum – A Period of Extraordinary Climate and Socio-economic Changes in Western and Central Europe

Throughout the last millennium, mankind was affected by prolonged deviations from the climate mean state. While periods like the Maunder Minimum in the 17th century have been assessed in greater detail, earlier cold periods such as the 15th century received much less attention due to the sparse information available. Based on new evidence from different sources ranging from proxy archives to model simulations, it is now possible to provide an end-to-end assessment about the climate state during an exceptionally cold period in the 15th century, the role of internal, unforced climate variability and external forcing in shaping these extreme climatic conditions, and the impacts on and responses of the medieval society in Central Europe. Climate reconstructions from a multitude of natural and human archives indicate that, during winter, the period of the early Spörer Minimum (1431–1440 CE) was the coldest decade in Central Europe in the 15th century. The particularly cold winters and normal but wet summers resulted in a strong seasonal cycle that challenged food production and led to increasing food prices, a subsistence crisis, and a famine in parts of Europe. As a consequence, authorities implemented adaptation measures, such as the installation of grain storage capacities, in order to be prepared for future events. The 15th century is characterised by a grand solar minimum and enhanced volcanic activity, which both imply a reduction of seasonality. Climate model simulations show that periods with cold winters and strong seasonality are associated with internal climate variability rather than external forcing. Accordingly, it is hypothesised that the reconstructed extreme climatic conditions during this decade occurred by chance and in relation to the partly chaotic, internal variability within the climate system.

El rey en el Trauerspiel

El artículo revisa el concepto de Trauerspiel propuesto por W. Benjamin en su estudio del Drama Barroco alemán. La dramaturgia del siglo XVII vinculada a la estética barroca, posee una serie de características que son analizadas por el autor, entre ellas, nos detendremos particularmente en los temas que tienen como eje la representación del rey. Su figura aparece no solo a la luz de los problemas de legitimidad política, como por ejemplo, la cuestión de los límites de su poder, sino además comparte la melancolía y la idea de catástrofe de la mentalidad barroca

El rey en el Trauerspiel

El artículo revisa el concepto de Trauerspiel propuesto por W. Benjamin en su estudio del Drama Barroco alemán. La dramaturgia del siglo XVII vinculada a la estética barroca, posee una serie de características que son analizadas por el autor, entre ellas, nos detendremos particularmente en los temas que tienen como eje la representación del rey. Su figura aparece no solo a la luz de los problemas de legitimidad política, como por ejemplo, la cuestión de los límites de su poder, sino además comparte la melancolía y la idea de catástrofe de la mentalidad barroca

El rey en el Trauerspiel

El artículo revisa el concepto de Trauerspiel propuesto por W. Benjamin en su estudio del Drama Barroco alemán. La dramaturgia del siglo XVII vinculada a la estética barroca, posee una serie de características que son analizadas por el autor, entre ellas, nos detendremos particularmente en los temas que tienen como eje la representación del rey. Su figura aparece no solo a la luz de los problemas de legitimidad política, como por ejemplo, la cuestión de los límites de su poder, sino además comparte la melancolía y la idea de catástrofe de la mentalidad barroca

Economic impacts of the Kra Canal : an application of the automatic calculation of sea distances by a GIS

A plan to construct a canal through the Kra Isthmus in Southern Thailand has been proposed many times since the 17th century. The proposed canal would become an alternative route to the over-crowded Straits of Malacca. In this paper, we attempt to utilize a Geographical Information System (GIS) to calculate the realistic distances between ports that would be affected by the Kra Canal and to estimate the economic impact of the canal using a simulation model based on spatial economics. We find that China, India, Japan, and Europe gain the most from the construction of the canal, besides Thailand. On the other hand, the routes through the Straits of Malacca are largely beneficial to Malaysia, Brunei, and Indonesia, besides Singapore. Thus, it is beneficial for all ASEAN member countries that the Kra Canal and the Straits of Malacca coexist and complement one another.

Molecular and genealogical evidence for a founder effect in Fanconi anemia families of the Afrikaner population of South Africa

Fanconi anemia (FA) is a rare, genetically heterogeneous autosomal recessive disorder associated with progressive aplastic anemia, congenital abnormalities, and cancer. FA has a very high incidence in the Afrikaner population of South Africa, possibly due to a founder effect. Previously we observed allelic association between polymorphic markers flanking the FA group A gene (FANCA) and disease chromosomes in Afrikaners. We genotyped 26 FA families with microsatellite and single nucleotide polymorphic markers and detected five FANCA haplotypes. Mutation scanning of the FANCA gene revealed association of these haplotypes with four different mutations. The most common was an intragenic deletion of exons 12–31, accounting for 60% of FA chromosomes in 46 unrelated Afrikaner FA patients, while two other mutations accounted for an additional 20%. Screening for these mutations in the European populations ancestral to the Afrikaners detected one patient from the Western Ruhr region of Germany who was heterozygous for the major deletion. The mutation was associated with the same unique FANCA haplotype as in Afrikaner patients. Genealogical investigation of 12 Afrikaner families with FA revealed that all were descended from a French Huguenot couple who arrived at the Cape on June 5, 1688, whereas mutation analysis showed that the carriers of the major mutation were descendants of this same couple. The molecular and genealogical evidence is consistent with transmission of the major mutation to Western Germany and the Cape near the end of the 17th century, confirming the existence of a founder effect for FA in South Africa.