Staged isolation of abdominal cavity in generalized on peritonitis.

In the work we present comparative results of treatment of patients with generalized secondary and tertiary peritonitis depending on the way of surgery completion. Patients in group I (n=27) underwent only skin suturing after the surgery, in group II –laporostoma was formed with VAC in the abdominal cavity. We have evaluated the level of microbe contamination and condition after wound surgery, intensity of adhesion process in the abdominal cavity, multiple organ failure after surgery. The use of laporostoma combined with VAC at different stages of generalized peritonitis treatment helps to achieve illness rigress, less number of planned saniations of abdominal cavity. Even after the first use of VAC, quicker clearance of operation wound and appearance of new granulation tis­sues occurred. In group II in secondary saniation the frequency of fixing of abdominal cavity is developing 31,9% higher (p<0,05) and in the third saniation the use of VAC therapy resulted in growing number of patients with frozen abdomen

Mode-locked diode-pumped vanadate lasers operated with PbS quantum dots

The use of glasses doped with PbS nanocrystals as intracavity saturable absorbers for passive Q-switching and mode locking of c-cut Nd:Gd0.7Y0.3VO4, Nd:YVO4, and Nd:GdVO4 lasers is investigated. Q-switching yields pulses as short as 35 ns with an average output power of 435mW at a repetition rate of 6-12 kHz at a pump power of 5-6W. Mode locking through a combination of PbS nanocrystals and a Kerr lens results in 1.4 ps long pulses with an average output power of 255 mW at a repetition rate of 100 MH

ESR Study of Y<inf>2</inf>SiO<inf>5</inf>:Nd¹⁴³ Isotopically Pure Impurity Crystals for Quantum Memory

© 2017, Springer-Verlag Wien.Two Y2SiO5 single crystals doped with 0.001 at.% of the 143Nd3+ ion (sample I containing the only 28Si isotope) and (sample II with the natural abundance of silicon isotopes) were studied using magnetic resonance methods. The spin–spin and spin–lattice relaxation times were measured at 9.7 GHz between 4 and 10 K. It is established that three relaxation processes describe temperature dependences of the spin–lattice relaxation for both crystals. They are one-phonon, two-phonon Raman and two-phonon Orbach–Aminov relaxation processes. It is established that temperature dependence of spin–spin relaxation time differs for different hyperfine components of the electron paramagnetic resonance spectrum of neodymium ions and depends on the kind of the neodymium isotope (143Nd or 145Nd)

Investigations of Y<inf>2</inf>SiO<inf>5</inf>: Nd¹⁴³ by ESR method

© 2016 Elsevier B.V.Here we present the investigation of Y2SiO5 monocrystals doped by isotopically pure 143Nd3+(0.025%) impurity by X-ray and electron spin resonance methods. The crystal structure parameters of Y2SiO5 monocrystal and microscopic parameters: g-tensors and hyperfine structure parameters of two nonequivalent Nd3+ paramagnetic centers were determined

Investigations of Y<inf>2</inf>SiO<inf>5</inf>: Nd¹⁴³ by ESR method

© 2016 Elsevier B.V.Here we present the investigation of Y2SiO5 monocrystals doped by isotopically pure 143Nd3+(0.025%) impurity by X-ray and electron spin resonance methods. The crystal structure parameters of Y2SiO5 monocrystal and microscopic parameters: g-tensors and hyperfine structure parameters of two nonequivalent Nd3+ paramagnetic centers were determined

Staged isolation of abdominal cavity in generalized peritonitis

In the work we present comparative results of treatment of patients with generalized secondary and tertiary peritonitis depending on the way of surgery completion. Patients in group I (n=27) underwent only skin suturing after the surgery, in group II –laporostoma was formed with VAC in the abdominal cavity. We have evaluated the level of microbe contamination and condition after wound surgery, intensity of adhesion process in the abdominal cavity, multiple organ failure after surgery. The use of laporostoma combined with VAC at different stages of generalized peritonitis treatment helps to achieve illness rigress, less number of planned saniations of abdominal cavity. Even after the first use of VAC, quicker clearance of operation wound and appearance of new granulation tis¬sues occurred. In group II in secondary saniation the frequency of fixing of abdominal cavity is developing 31,9% higher (p<0,05) and in the third saniation the use of VAC therapy resulted in growing number of patients with frozen abdomen