Partial level density of the n-quasiparticle excitations in the nuclei of the 39< A <201 region

Level density and radiative strength functions are obtained from the analysis of two-step cascades intensities following the thermal neutrons capture. The data on level density are approximated by the sum of the partial level densities corresponding to n quasiparticles excitation. The most probable values of the collective enhancement factor of the level density are found together with the thresholds of the next Cooper nucleons pair breaking. These data allow one to calculate the level density of practically any nucleus in given spin window in the framework of model concepts, taking into account all known nuclear excitation types. The presence of an approximation results discrepancy with theoretical statements specifies the necessity of rather essentially developing the level density models. It also indicates the possibilities to obtain the essentially new information on nucleon correlation functions of the excited nucleus from the experiment.Comment: 29 pages, 8 figures, 2 table

Hierarchical morphogenetic analysis of Kursk chernozem

Each of four hierarchical levels in the morphogenetic research is characterized in terms of technical and information facilities. A detailed hierarchical study was performed for the first time for chernozems and may be qualified for a basic one. Its results comprise confirmation of occurrence and details in manifestations of pedogenetic processes well-known in chernozems, as well as additional information on the pedofauna contribution to chernozem formation, variability and dynamics of carbonate pedofeatures, stability of the mineral soil ingredients

The nucleus ^198 Au investigated with neutron capture and transfer reactions. II. Construction of the level scheme and calculation of level densities

The level scheme of ^198 Au was constructed. Up to 1560 keV a total of 111 (d,p) and 125 (n,gamma) levels was included, frequently with spin and parity assignments. The results for level densities are calculated in interacting boson-fermion-fermion model (IBFFM) and Gaussian polynomial method (GPM) and are compared to the present data

Proučavanje jezgre 198Au pomoću neutronskog uhvata i (d,p) reakcijom. II. Konstrukcija sheme nivoa i izračunavanje gustoće nivoa

The level scheme of 198Au was constructed. Up to 1560 keV a total of 111 (d,p) and 125 (n,γ) levels was included, frequently with spin and parity assignments. The results for level densities are calculated in interacting boson–fermion–fermion model (IBFFM) and Gaussian polynomial method (GPM) and are compared to the present data.Sastavljena je shema raspada 198Au. Do energije uzbude od 1560 keV, uključeno je 111 stanja određenih (d,p) reakcijom i 125 stanja (n,γ) reakcijom. Za mnoga stanja određeni su momenti impulsa i parnost. Primjenom modela uzajamno djelujućih bozon–fermion–fermiona i metode Gaussovih polinoma, izračunate su gustoće stanja i uspoređene s izmjerenim vrijednostima

Proučavanje jezgre 198au pomoću neutronskog uhvata i (d,p) reakcijom. I. Eksperimenti i procjena

The transfer reaction 197Au(d,p)198Au was measured at the Tandem Accelerator in Munich. The 197Au(n,γ) 198Au and 197Au(n,e)198Au reactions were performed at the High Flux Reactor of ILL, Grenoble. Up to 1560 keV a total of 111 levels were observed by the (d,p) reaction and 125 by the (n,γ) reaction. For many of the levels, spins and parities were assigned. Additional information was obtained from summed (n,γγ) coincidences measured in Dubna.Načinjena su mjerenja relacije 197Au(d,p)198Au pomoću tandem Van de Graaff akceleratora u Munchenu, a reakcije 197Au(n,γ) 198Au i 197Au(n,e)198Au proučavane su pri nuklearnom reaktoru u Institutu Lane–Laugevin u Grenoblu. Reakcijom (d,p) opaženo je do energije uzbude od 156 keV ukupno 111 nivoa, a reakcijom (n,γ) 125 nivoa. Za mnoge nivoe utvrđeni su momenti impulsa i parnosti. Dodatni su podaci postignuti mjerenjem zbrojnih (n,γγ) sudara u Institutu u Dubni

The nucleus ^198 Au investigated with neutron capture and transfer reactions I. Experiments and evaluation

The transfer reaction ^197 Au(d,p)^198 Au was measured at the Tandem Accelerator in Munich. The ^197 Au(n,gamma)^198 Au and ^197 Au(n,e)^198 Au reactions were performed at the High Flux Reactor of ILL, Grenoble. Up to 1560 keV a total of 111 levels were observed by the (d,p) reaction and 125 by the (n,gamma) reaction. For many of the levels, spins and parities were assigned. Additional information was obtained from summed (n,gamma gamma) coincidences measured in Dubna

Proučavanje jezgre 198au pomoću neutronskog uhvata i (d,p) reakcijom. I. Eksperimenti i procjena

The transfer reaction 197Au(d,p)198Au was measured at the Tandem Accelerator in Munich. The 197Au(n,γ) 198Au and 197Au(n,e)198Au reactions were performed at the High Flux Reactor of ILL, Grenoble. Up to 1560 keV a total of 111 levels were observed by the (d,p) reaction and 125 by the (n,γ) reaction. For many of the levels, spins and parities were assigned. Additional information was obtained from summed (n,γγ) coincidences measured in Dubna.Načinjena su mjerenja relacije 197Au(d,p)198Au pomoću tandem Van de Graaff akceleratora u Munchenu, a reakcije 197Au(n,γ) 198Au i 197Au(n,e)198Au proučavane su pri nuklearnom reaktoru u Institutu Lane–Laugevin u Grenoblu. Reakcijom (d,p) opaženo je do energije uzbude od 156 keV ukupno 111 nivoa, a reakcijom (n,γ) 125 nivoa. Za mnoge nivoe utvrđeni su momenti impulsa i parnosti. Dodatni su podaci postignuti mjerenjem zbrojnih (n,γγ) sudara u Institutu u Dubni

Assessment of the temporomandibular joint condition using two-dimensional ultrasound scanning and doppler ultrasonography methods in patients with chronic inflammatory periodontal diseases

Introduction. Currently, dentists are increasingly detecting changes in the temporomandibular joint in patients with chronic inflammatory periodontal disease.Aim of the study. To carry out a comprehensive dynamic assessment of the temporomandibular joint (TMJ) condition and the registration of regional blood flow using two-dimensional ultrasound scanning to improve the efficiency of diagnostics of inflammatory periodontal diseases.Materials and methods. The study included 2 groups of patients: group 1 (control) consisted of 20 volunteers aged 20–25; Group 2 consisted of 52 people aged 25–45 years with moderate chronic periodontitis. For TMJ ultrasound and Doppler ultrasound, a portable ultrasound scanner LogicScan  128 with an HL-10  linear ultrasound transducer  with an operating frequency of 5     to 12 MHz was used.Results and discussion. During ultrasound examination of the temporomandibular joint and measuring the size of the joint space in patients with moderate chronic periodontitis in a state of relative physiological rest, the following  values were obtained:   in the anterior region – 2.3 ± 0.5 mm; in the upper section – 1.6 ± 0.6 mm; in the posterior section – 1.8 ± 0.3 mm. We also measured the area of the temporomandibular joint disc in various positions. According to ultrasound data, an increase in the size of the joint space from 12.2 to 16.1% and an increase in the area of the articular disc by 17.1 to 36.7% were found in patients with chronic periodontitis. When assessing the trajectory of the articular track, motion delay and joint wedging are determined. In addition, in the color Doppler mapping (CDM) mode, the speed and index indicators of Doppler ultrasonography of the external carotid and temporal arteries were calculated.Conclusions. Modern diagnostic methods of ultrasound and Doppler mapping, assessing the hemodynamics and functional state of the TMJ, allow early diagnosis of changes in order to prevent the development of TMJ disorders in patients with chronic inflammatory periodontal diseases

The nucleus ^198 Au investigated with neutron capture and transfer reactions I. Experiments and evaluation

The transfer reaction ^197 Au(d,p)^198 Au was measured at the Tandem Accelerator in Munich. The ^197 Au(n,gamma)^198 Au and ^197 Au(n,e)^198 Au reactions were performed at the High Flux Reactor of ILL, Grenoble. Up to 1560 keV a total of 111 levels were observed by the (d,p) reaction and 125 by the (n,gamma) reaction. For many of the levels, spins and parities were assigned. Additional information was obtained from summed (n,gamma gamma) coincidences measured in Dubna