001); this difference persisted for patients aged 40 to 60 (P < 0.001) but not in younger patients (aged 20-40) (45% vs. 36%; P = 0.62). We found a lower SB273005 QFT positivity (18/45; 40%) in RA patients aged >60 years compared to controls from the same age group (29141; 71%; P = 0.004). There was no difference between patients and controls in the younger age group. In a TB-endemic population, QFT-GIT identified significantly more patients as being LTBI than did the TST, enabling the identification of more candidates for LTBI prophylaxis. The diagnostic tests to detect LTBI in elderly

RA patients do not have adequate sensitivity (TST and also QFT) compared to control patients, therefore the onset of anti-TNF therapy in this group, particularly in areas highly endemic for TB, must be done very carefully.”
“Aim\n\nTo reconstruct the last c. 7000 years of vegetation and climate change in an unusual region of modern

Great Plains grassland and scarp woodland in south-east Colorado (USA), and to determine the late Holocene biogeography of Colorado pinon (Pinus edulis) at its easternmost extent, using a series of radiocarbon-dated packrat (Neotoma sp.) middens.\n\nLocation\n\nThe West Carrizo Canyon drains the Chaquaqua Plateau, GS-7977 price a plateau that projects into the western extent of the southern Great Plains grasslands in south-eastern Colorado, USA. Elevations of the study sites are 1448 to 1525 m a.s.l. Today the plateau is mostly Juniperus scopulorum-P. edulis woodland.\n\nMethods\n\nPlant macrofossils and pollen assemblages were analysed from 11 14C-dated packrat middens. Ages ranged from

5990 yr bp (6839 cal. ARS-1620 cost yr bp) to 280 yr bp (485 cal. yr bp).\n\nResults\n\nThe results presented here provide information on the establishment and expansion of Juniperus-P. edulis woodland at its eastern limits. The analysis of both plant macrofossils and pollen from the 11 middens documents changes in plant communities over the last 7000 years, and the establishment of P. edulis at its easternmost limit. Though very minor amounts of P. edulis pollen occur as early as the middle Holocene, plant macrofossils were only recovered in middens dating after c. 480 cal. yr bp.\n\nMain conclusions\n\nOriginally, midden research suggested a late glacial refuge to the north-east of the Carrizo Canyon site, and a middle Holocene expansion of P. edulis. Results reported here are consistent with a late Holocene expansion, here at its eastern limits, but noted elsewhere at its northern and north-eastern limits. In general, this late Holocene expansion is consistent with pollen data from sediments in Colorado and New Mexico, and suggests that P. edulis is still expanding its range at its present extremes. This has implications for further extension of its range due to changing climatic conditions in the future.”
“For structures deployed in space using cables where vibration damping is critical for structural stability, cable damping is significant to structural performance.