The hydrothermal vent field Loki’s Castle is located in the Mohns-Knipovich bend (73°N) of the ultraslow spreading Arctic Mid-Ocean Ridge (AMOR) close to the Bear Island sediment fan. The ...hydrothermal field is venting up to 320° C hot black smoker fluids near the summit of an axial volcanic ridge. Even though the active chimneys have grown on a basaltic ridge, geochemical fluid data show a strong sedimentary influence into the hydrothermal circulation at Loki’s Castle. Compelling evidence for a sediment input is given by high alkalinity, high concentrations of NH4+, H2, CH4, C2+ hydrocarbons as well as low Mn and Fe contents. The low δ13C values of CO2 and CH4 and the thermogenic isotopic pattern of the C2+ hydrocarbons in the high-temperature vent fluids clearly point to thermal degradation of sedimentary organic matter and illustrate diminution of the natural carbon sequestration in sediments by hydrothermal circulation. Thus, carbon-release to the hydrosphere in Arctic regions is especially relevant in areas where the active Arctic Mid-Ocean Ridge system is in contact with the organic matter rich detrital sediment fans.
The article is the first presentation of detailed research of bird bones from six Teutonic Order castles built in the 13th century in the historical territory of Prussia, mainly in Terra Culmensis – ...the Kulmerland. The aim was to assess diachronic trends in bird exploitation at these sites. 28 different species were identified within the three historical periods represented in the occupation phases of these castles – the Pre-Teutonic Order or early medieval period, the Teutonic Order's period of rule and that of the Kingdom of Poland. The most numerous were domestic fowl (chicken) and geese, and their anatomical composition, age, sex and biometrics are described. A small percentage consists of wild species. The significance of birds for the castle elites in all periods was assessed through a comparison of archaeo-ornithological and historical data. The bird remains (and eggshells) from these castles largely represent the waste from food preparation, but some can be connected with hawking, the use of feathers and down, as well as for particular species kept for ornamental purposes. All of these are defining characteristics of high-status sites in the medieval and early modern periods.
This paper reconsiders Stephen Castle's classic paper Why Migration Policies Fail. Beginning with the so-called migration crisis of 2015 it considers the role of numbers is assessing success or ...failure. It argues that in the UK public debates about immigration changed with European Union (EU) Enlargement in 2004, when the emphasis shifted from concerns about asylum to concerns about EU mobility. Concerns were exacerbated by the government's failure to meet its promise to reduce net migration. This policy is hampered by the general problem of definition of "migrant" and the gap between statistical measures and popular usage in which "migration" signifies problematic mobility. In fact, concern about migration has become a placeholder for concerns about globalization and democratic accountability. A new politics of migration must make connections between migrants and citizens, but also between migration and other global processes, particularly outsourcing and the exploitation of labour and resources in the global south.
Recently, cases of carcinoma showing thymus-like differentiation (CASTLE) occurring in major salivary glands have been identified. To assess the diagnostic value of CD5 immunohistochemistry in ...distinguishing salivary CASTLE from other types of salivary gland tumors, we evaluated CD5 expression in 109 salivary gland tumors, encompassing 23 different histological types, including salivary CASTLE. In addition, we reviewed 10 previously reported cases of salivary CASTLE. Most salivary CASTLE cases (10/11, 91%) showed strong CD5 expression. In contrast, 104 of 108 (96%) non-salivary CASTLE tumors were negative for CD5, while the remaining four tumors (3.7%), all of which were histologically Warthin tumors, showed focal positivity for CD5 with weak to moderate intensity. In conclusion, the findings in this study support the potential use of CD5 immunohistochemistry for distinguishing salivary CASTLE from other histological types of salivary gland tumors. Aberrant CD5 expression in this tumor may be linked to the tumor microenvironment.
Partition to Partnership to Brexit Kearney, Jarlath; Shirlow, Peter; Tannam, Etain
The RUSI journal,
05/2022, Letnik:
167, Številka:
3
Journal Article
Recenzirano
Dublin Castle stands as a signifier of both conflict and conciliation between Ireland and Britain over recent centuries. On 16 January 2022, all of Ireland’s mainstream political parties gathered ...there on the centenary of the castle’s handover by the last lord lieutenant of Ireland, Viscount FitzAlan of Derwent, to the provisional government of Ireland led by Michael Collins, which took place after the Dáil endorsed the 1921 Treaty. Jarlath Kearney, Peter Shirlow and Etain Tannam show that a century after that treaty and the partition of the island, the facts and themes flowing from that period – particularly ongoing identity and culture contests over Northern Ireland’s constitutional status – remain live. It is essential in managing future challenges that British-Irish intergovernmental cooperation thrives and that the Belfast/Good Friday Agreement is implemented robustly. This is not simply because of Northern Ireland, but because of the host of geopolitical and international security challenges ahead.◼
PDF
