The ovarian hormone privation causes functional and hormonal disorders, as sexual dysfunction, loss of libido, increase of osteoporosis risk and heart disease, lioprotein levels change and ponderal gain. Osteoporosis is a systemic skeletal disease characterized by an disorder between resorption and bone formation with a consequent increase in bone fragility. The objective of the present investigation was to describe the experimental ovariectomy (OVT) effects on the bone metabolism and on the ponderal gain of the adults wistar rats. Adult rats were under the OVT procedure or sham operated. After 30 days, blood was collectded for the quantitative serum estrogen and after 60 days the animals were sacrified for the serum and bone analysis. The dietary consumption and the weight increase were evaluated twice and once a week respectively. The OVT rats had statistically higher averages (p > 0,05) for the dietary consumption, weight gain and alkaline phosphatase activity in the serum and lower (p < 0,05) for the serum estrogen concentration, calcium content, radiodensity and bone proportional limit comparing to the sham-operated rats. Besides the quantitative analysis, the OVT rats had femurs with theirs surface containing deep resorption gaps, confirming that the ovariectomy rats are a great osteoporosis study model on post menopause women.

U radu su istraživana svojstva kvalitete mesa (pH i boja m. longissimus dorsi), neki pokazatelji stresa u krvi (CK - kreatin kinaza, LDH - laktat dehidrogenaza, AST - aspartat aminotranferaza i glukoza) i namjensko iskoristenje trupa u proizvodnji Slavonskog kulena kod Crne slavonske (CS) i modernih križanaca svinja: domace bijele (DB) i domace bijele x durok (DBxD). CS svinje imale su najnižu (P<0, 05) CK i AST aktivnost u serumu sto ukazuje na slabiju stresnu osjetljivost. Vrijednosti misicnog pH bile su unutar granice normalne kakvoce mesa kod svih istraživanih genotipova. Starije CS i DBxD svinje imale poželjniju boju mesa za proizvodnju kulena. Namjensko iskoristenje (%) butova bilo je najniže kod CS svinja (29, 31 % od osnovnog dijela i 7, 04 % u odnosu na klaonicki obrađeni trup, P<0, 05). Skupina DBxD tovljenika imala je najvise namjensko iskoristenje leđa (34, 14 % i 4, 93 %, P<0, 05), a skupina DB najnižu iskoristivost vratnog dijela (22, 31 % i 1, 12 %, P<0, 05). Ukupna namjenska iskoristivost osnovnih dijelova trupa za preradu u kulen kod CS svinja bila je znacajno niža nego kod DBxD skupine (26, 75 % prema 32, 33 %, P<0, 05). Namjensko iskoristenje trupa za proizvodnju kulena bilo je vise u skupini DBxD tovljenika (19, 85 %, P< 0, 05) u odnosu na CS (16, 26 %) i HB (16, 28 %) tovljenike.

We give an overview of how calculus of the embedding functor can be used for the study of long knots and summarize various results connecting the calculus approach to the rational homotopy type of spaces of long knots, collapse of the Vassiliev spectral sequence, Hochschild homology of the Poisson operad, finite type knot invariants, etc. Some open questions and conjectures of interest are given throughout.