Sera from rams infected with and excreting Brucella ovis in the semen (shedders), as well as from animals which had recovered from previous experimental challenge with B. ovis, were analyzed for their serological reactivities against cytosolic antigens of the bacterium. Membrane vesicles, including outer and inner membrane components, were precluded from the analyses by subjecting French-presse...

OBJECTIVE Patients with rheumatoid arthritis (RA) are at increased risk of falling. In healthy elderly persons with a history of falling, a reduced ability to avoid obstacles while walking has been shown to relate to increased fall risk. The aim of this study was to determine whether this potential risk factor for falls would also be present in persons with RA. METHODS Twelve RA patients and ...

The annual cycle of global dissolved oxygen content ( O 2 C ) and mean concentration in the surface mixed layer are estimated using monthly climatological fields from World Ocean Atlas 2018 (WOA18). largest seasonal variability occurs extra-tropics between 30° 70° latitude each hemisphere. A view role entrainment, air-sea flux, biological activity controlling content/concentration is determined...

1. The activities of nine peptide hydrolases and three non-peptidase brush-border marker enzymes have been quantified in crude homogenates prepared from the proximal, mild and distal regions of small-intestinal mucosa for sham-operated (n = 9) and uraemic (n = 14) rats. Abnormalities in enzyme activities were observed in all regions studied in the uraemic group, although no reduction in food in...

The planetary boundary layer height (PBLH) is a diagnostic field related to the effective heat capacity of lower atmosphere, both stable and convective, it constrains motion in this as well impacts surface warming. Here, we used radiosonde data from five icebreaker cruises Chukchi Beaufort Seas during spring fall derive PBLH using bulk Ri method, which were then compared with results ERA5 reana...

[Purpose] Competitive sport places strict demands on the cardiovascular systems of veteran trail runners. Our research objective was to evaluate the dynamics of microcirculation parameters of veteran runners in hypoxic and mid-altitude conditions. [Subjects and Methods] Seven male runners from Russia and Italy between the ages of 50 and 60 years were examined whilst competing at mid-altitude (1...

Global temperature has been increased by 0.6 °C over the past century and is predicted to increase by 1.4–5.8 °C by the end of this century. It is unclear what impacts global warming will have on tallgrass species. In the present study, we examined leaf net photosynthetic rate (Pn) and leaf respiration rate in darkness (Rd) of Aster ericoides (L.) Nesom, Ambrosia psilostachya DC., Helianthus mo...

Saplings of one half-sib family of birch, Betula pendula Roth, were exposed to three ozone concentrations (non-filtered air (NF); non-filtered air + 10-20 nmol O(3) mol(-1) (NF+); non-filtered air + 40-60 nmol O(3) mol(-1) (NF++)) in open-top chambers during two growing seasons from 1997 to 1998. Shed leaves were collected regularly during both growing seasons and, in 1998, the dry mass (DM) an...

Lagrangian feature tracking techniques are employed to determine the cause of the midwinter suppression of the Pacific storm track. It is found that the frequency of disturbances entering the Pacific storm track from mid-latitude Asia is substantially reduced (>25%) during wintertime relative to fall and spring. In contrast, the seasonal cycle of both the amplitude and the growth rate of indivi...