28 research outputs found
Relationships between body weight and percentage body fat in the body and the development of osteopenia and osteoporosis
Obesity nowadays is a significant problem in developing countries and developed ones. Both the percentage of adipose tissue in the body and the proportion of muscle tissue affect the condition of the skeletal system. The common origin of adipose tissue and muscle tissue shows that overweight and obesity are not indifferent to the metabolism of bone tissue. Both malnutrition and obesity can lead to unfavorable health effects, contributing to the development of bone disorders and the occurrence of osteopenia, osteopenia with sarcoidosis, osteoporosis or osteoarthritis. Increased percentage of adipose tissue and/or muscle tissue during menopause may have an osteoprotective effect and thus prevent or relieve the effects of menopause in women or andropause in men. Research aimed at measuring the content of adipose tissue as a supplement to other diagnostic tests may contribute to the early detection and even prevention of osteoporosis.
Key words: BMI, obesity, osteoporosis, osteopeni
Regularity of Ornstein-Uhlenbeck processes driven by a L{\'e}vy white noise
The paper is concerned with spatial and time regularity of solutions to
linear stochastic evolution equation perturbed by L\'evy white noise "obtained
by subordination of a Gaussian white noise". Sufficient conditions for spatial
continuity are derived. It is also shown that solutions do not have in general
\cadlag modifications. General results are applied to equations with fractional
Laplacian. Applications to Burgers stochastic equations are considered as well.Comment: This is an updated version of the same paper. In fact, it has already
been publishe
Towards Decision Centric Repository of Architectural Knowledge
Part 1: Software Architectures and DevelopmentInternational audienceArchitectural design and design decisions are the key components of architectural knowledge. However, concerns, rationales, and risks should be also captured to prevent knowledge vaporization. So, how to deal with architectural knowledge in incremental knowledge refinement? We believe that usage of the knowledge repository system can support architecture evolution. In this paper, a model of knowledge repository is presented. In this model, the decision-centric approach is complemented with the architectural views to support indirect interrelations between design decisions. Support for agile development was one of the key aspects of the model design, therefore knowledge vaporisation might be reduced
Red Foxes (<i>Vulpes vulpes</i>) Are Exposed to High Diversity of <i>Borrelia burgdorferi</i> Sensu Lato Species Infecting Fox-Derived <i>Ixodes</i> Ticks in West-Central Poland
The role of red fox, Vulpes vulpes, and its associated ticks in maintaining Borrelia burgdorferi sensu lato (s.l.) was studied. A total of 1583 ticks were removed from ears of 120 infested animals and were identified as species using a nested PCR targeting the ITS2 and coxI fragments of Ixodes DNA. Ixodes kaiseri prevailed (76%), followed by I. canisuga, I. ricinus, and I. hexagonus. In total, 32.4% of 943 ticks revealed Borrelia DNA and 10 species of B. burgdorferi s.l. complex were identified. Borrelia garinii and B. afzelii comprised 70% of all infections. The other eight species included B. americana, B. bissettiae, B. burgdorferi sensu stricto (s.s.), B. californiensis, B. carolinensis, B. lanei, B. spielmanii, and B. valaisiana. Analysis of tissues from 243 foxes showed that 23.5% were infected with B. burgdorferi s.l. Borrelia garinii was detected in 91% of the infected animals, including 31% of mixed infections with B. afzelii, the second most prevalent species, followed by B. spielmanii. The predominance of B. garinii in PCR-positive animals and infected larval ticks (38.1%), suggests that this spirochete and B. afzelii are preferentially associated with foxes. Although red foxes are exposed to a high diversity of B. burgdorferi s.l. species found in engorged Ixodes ticks, their reservoir competence for most of them appears to be low
Infestation of the Northern white-breasted hedgehog (Erinaceus roumanicus) with Ixodes ticks in urban ecosystems of the city of Poznań
Between April and November 2009, infestation by Ixodes hexagonus and I. ricinus ticks on the northern white-breasted hedgehog, Erinaceus roumanicus, was investigated in urban environments of the city of Poznań. In total, 49 hedgehogs were trapped, 36 (73.5%) of which hosted 1,519 ixodid ticks, with a mean intensity of 42.2 ticks per infested animal. The most abundant tick species, I. hexagonus, constituted 67% (1,019) of all ticks recorded and infested 71.4% of the hosts. I. ricinus accounted for 33% (500) of all ticks recorded, and was identified on 51% of the hedgehogs. Mean intensities of ticks were higher for I. hexagonus than for I. ricinus (29.1 and 20.0, respectively). The proportion of the two tick species differed by life stage. I. hexagonus larvae (n = 744) strongly dominated over nymphs (n = 204) and females (n = 71). In contrast, similar proportions of three stages of I. ricinus were recorded (168 larvae, 194 nymphs, 138 females). Both tick species parasitizing hedgehogs showed seasonal differences in tick burdens and prevalences. The data obtained in this survey demonstrate that E. roumanicus hedgehogs hosting all developmental stages of Ixodes, contribute to the local amplifying and maintenance of tick populations within urban environments