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PAH exposure and associated health risks can be high at a fire site both during fire and long after the fire is extinguished

The International Agency for Research on Cancer has recently classified occupational exposure as a firefighter as carcinogenic (group 1A). Even though the occupation of firefighter is associated with high exposure to pollutants, it is challenging to carry out exposure studies to assess health risks due to the extreme conditions associated with firefighting. Routine monitoring of occupational expos

Association between a polymorphism affecting an AP1 binding site in the promoter of the TCIRG1 gene and bone mass in women

The TCIRG1 gene encodes a component of the osteoclast vacuolar proton pump and previous work has shown that inactivating mutations of the TCIRG1 cause autosomal recessive osteopetrosis. In order to determine whether allelic variation in TCIRG1 contributes to the regulation of bone mineral density (BMD) in normal individuals, we studied the relationship between polymorphisms of TCIRG1 and BMD in a

Haemophilus Protein F Orthologs of Pathogens Infecting the Airways : Exploiting Host Laminin at Heparin-Binding Sites for Maximal Adherence to Epithelial Cells

Haemophilus influenzae protein F (PF) is an important virulence factor interacting with laminin, an extracellular matrix protein ubiquitously expressed in the respiratory tract. Here we defined PF orthologs in Pseudomonas aeruginosa, Moraxella catarrhalis, and Staphylococcus aureus, bacteria that occasionally colonize and infect the human airways. Despite low sequence homology (48.2%-77.3% similar

Carbon stocks and fluxes in the high latitudes : Using site-level data to evaluate Earth system models

It is important that climate models can accurately simulate the terrestrial carbon cycle in the Arctic due to the large and potentially labile carbon stocks found in permafrost-affected environments, which can lead to a positive climate feedback, along with the possibility of future carbon sinks from northward expansion of vegetation under climate warming. Here we evaluate the simulation of tundra

Formation of uranium-thorium-rich bitumen nodules in the Lockne impact structure, Sweden : A mechanism for carbon concentration at impact sites

The Ordovician Lockne impact structure is located in central Sweden. The target lithology consisted of limestone and black unconsolidated shale overlaying a Precambrian crystalline basement. The Precambrian basement is uranium-rich, and the black shale is both uranium- and organic-rich. This circumstance makes Lockne a good candidate for testing the occurrence of U-Th-rich bitumen nodules in an im

The late-Holocene decline of Tilia in relation to climate and human activities - pollen evidence from 42 sites in southern Sweden

Aim: The dominant role of Tilia in primeval forests of Scandinavia has long been recognized, but the timing and mechanisms for its decline have not been completely unravelled. A particular uncertainty involves the balance between climate and human activities as the drivers of the change. One reason for the uncertainty is the challenge in evaluating the past cover of the genus owing to its poorly d

Individual consistency of long-distance migration in a songbird: significant repeatability of autumn route, stopovers and wintering sites but not in timing of migration

Through new tracking techniques, data on timing and routes of migration in long-distance migrant birds are accumulating. However, studies of the consistency of migration of the same individuals between years are still rare in small-sized passerine birds. This type of information is important to understand decisions and migration abilities at the individual level, but also for life history theory,