A mathematical model for understanding near-field Mie scattering, as used in optical trap nanomery for single molecule detection, is developed. Both perpendicular and parallel polarization states of incident electromagnetic waves have been considered. Simulations under different incident angles, and refractive indices of trapped particle have been investigated. Half-space signal strength is studied on the base of the calculated three-dimensional scattered electromagnetic field.

It is shown that the spin is naturally introduced into classical mechanics if the latter is formulated as dynamics of the phase space density. It is shown that the uncertainty principle, as the amendment in this dynamics, restricts possible spins, and in particular equation for the particle with the spin ~ / 2 is derived. Also equation for the charge with this spin is derived when electromagnetic field is included. In one example it is shown that the modulus of the spin changes with the gradient of the magnetic field.

Investigations into the qualitative characteristics of kid goat meat were done on the meat of 44 crossbred kid goats of domestic Balkan White and Saanen goat at the age of 3–4 and 6–7 months. The results showed that the highest average percentage of water contained the meat of a male kid goat at the age of 6–7 months (76.45 %), while the lowest was in the meat of a male kid goat at the age of 3–4 months (70.73 %). The highest content of proteins was found in the meat of a male kid goat at the age of 6–7 months (21.28 %), while the lowest was in the meat of a female kid goat in younger investigated groups (19.14 %). The highest content of fats was in the meat of a female kid goat at the age of 3–4 months (5.53 %), while the lowest was in the meat of a male kid goat in the younger investigated group (1.21 %). Quantity of mineral matters in both age and sex groups ranged from 1.06 to 1.17 %. Due to its physical-chemical values, kid goat meat from both age and sex groups is considered a very valuable product in human nutrition.

AIM Oxytocin produces concentration-dependent relaxation of isolated isthmus and ampulla of human oviduct precontracted by histamine. The aim of our study was to investigate whether this oxytocin effect was specific and by which receptors it was mediated. METHODS We investigated effects of oxytocin and its antagonists on isolated isthmus and ampulla of the uterine tubes from 20 women who underwent surgery for uterine fibroids. Selective vasopressin and oxytocin antagonists were used to treat isolated preparations of the tubes. RESULTS In a concentration-dependent manner, oxytocin enhanced spontaneous relaxation of both isthmus (EC50=1.23+/-0.03 x 10(-7) mol/L) and ampulla (EC50=1.04+/-0.26 x 10(-7) mol/L) precontracted by histamine. Neither predominantly selective vasopressin V1 receptor antagonist, [beta-mercapto-beta,beta-cyclopentamethylene-propionyl1,0-metyr2,arg8]-vasopressin (1.0 x 10(-9)-1.0 x 10(-7) mol/L), nor predominantly selective vasopressin V2 antagonist, [1-(beta-mercapto-beta,beta-cyclopentamethylene-propionic acid), 2-D-isoleucine, 4-D-isoleucine]-arginine-vasopressin (1.0 x 10(-9)-1.0 x 10(-7) mol/L) affected significantly the relaxation of isolated ampulla and isthmus produced by oxytocin. On the other hand, [Deamino-Cys1,D-Tyr (Et)2, Thr4, Orn8]-oxytocin, a selective blocker of oxytocin receptors, produced in a concentration-dependent manner (6.7 x 10(-9) mol/L, 2.0 x 10(-8) mol/L, and 6.7 x 10(-7) mol/L) significant shifts of the concentration-response curves of relaxation for oxytocin to the right in isolated preparations of both the ampulla and the isthmus. The values of pA2 for [Deamino-Cys1,D-Tyr (Et)2, Thr4, Orn8]-oxytocin calculated from constrained Schilds plot were 8.08+/-1.53 for ampulla and 7.94+/-0.67 for isthmus. CONCLUSION Oxytocin relaxes smooth muscles in human oviduct through a specific effect on oxytocin receptors.

The Municipality of Cazin is situated in the North-West part of B&H more precisely in Canton Una-Sana. It occupies an area of 381 km2 and is positioned 317 m above the sea level. In the Municipality of Cazin we analyzed data obtained from 20 small family farms in May 2001. We chose farms by random sampling, so we used visual inspection, some measurements and inquiry about cattle breeds structure, age, productivity etc. at every farm. Finally, we analyzed the data and information obtained. In this paper, we present results on cattle categories and breed structure. We also give the most important information about housing and productivity of dairy cows in this municipality. Based on our investigation and results of the questionnaire, we can conclude that breed structure of cattle as well as housing and productivity of cows are satisfying taking into consideration the average of these parameters in Bosnia and Herzegovina today.

The purpose of the paper is to present magnetic resonance imaging as a useful technique in establishing a diagnosis of functional disorders of the temporomandibular joint, on the basis of case studies, as this technique is not yet widely used in this country. The MR images were used for assessment of normal functional anatomy, as well as forms of functional disorders of the temporomandibular joints (disc displacement with and without reduction). Standard oblique sagittal planes with T1 sequences obtained using Magneton Impact (Siemens) apparatus at 1.0 T with surface coil of 10 cm diameter were used. The MR images were taken in the open mouth and closed mouth positions in the oblique sagittal plane vertical to the longitudinal axis of the condyle. Magnetic resonance imaging is a non-invasive technique using magnetic field and radio frequency pulses instead of ionising radiation for image creation. Of all known radiologic techniques, magnetic resonance imaging proved to be the best technique of choice for visualization of soft and hard tissues of the temporomandibular joints. In general, the magnetic resonance technique is used in cases of doubtful diagnosis and therapeutic failure of temporomandibular disorders. Apart from diagnostics, the technique can also be used in assessment of various methods of treatment of temporomandibular disorders (where conditions before and after treatment are assessed). It is also used for better understanding of the pathophysiology and biomechanics of temporomandibular joints, which has been shown in numerous scientific studies.

In 28 young, healthy individuals the quantity of salivary peroxidase was determined with the aim of evaluating normal ranges for salivary peroxidase, to determine whether any differences in SP values between unstimulated and stimulated whole saliva exist and to find any possible differences between sexes. We can conclude that no statistically significant differences between salivary peroxidase values in unstimulated and stimulated whole saliva were found. No statistically significant differences were found between female and male individuals in salivary peroxidase values, either in unstimulated or stimulated whole saliva.