Administration of Sn-protoporphyrin to Gunn rats that are characterized by a genetically determined absence of UDP-glucuronyl transferase activity for bilirubin, 24-30 h after birth, prevented the marked increase in serum bilirubin concentration that occurs in these animals in the postnatal period. A second administration of Sn-protoporphyrin at day 6 maintained serum bilirubin levels in the ne...

This paper is the review of our study published earlier in Acta Phys. Polon. A 121, 522 (2012) [7], Phys Lett 378, 1364 (2014) [25], and [1]. It’s aim to pay attention new possibilities related producing types THz generators. The suggested effects are result combining two effects: Gunn-effect a material such as GaAs undulator-like radiation, or 'pumping wave' acting on electrons which undulator...

cannot be excluded. Allele association studies are hampered by several possible sources of error." Our study emphasises the need for additional, carefully designed studies when applying this potentially useful method in the search for genetic factors contributing to the aetiology of Parkinson's disease.tion between the oxidative polymorphism and early onset of Parkinson's disease. Genotype rela...

We have previously suggested that the decrease in the levels of serum total thyroxine (T(4)) and free T(4) by a single administration to rats of Kanechlor-500 (KC500) at a dose of 100 mg/kg is not necessarily dependent on the increase in hepatic T(4)-UDP-glucuronosyltransferase (UDP-GT). In the present study, we determined whether or not a consecutive treatment with KC500 at a relatively low do...

ARIAS, IRWIN M., LOIS JOHNSON, AND SONIA WOLFSON. Biliary excretion of injected conjugated and unconjugated bilirubin by normal and Gunn rats. Am. J. Physiol. 200(5) : I 091-1094. I 961. -Conjugated and unconjugated bilirubin were injected intravenously at different times into normal rats and homozygous, jaundiced Gunn rats. As was expected, Gunn rats did not excrete injected unconjugated bilir...

We show that the gaseous halos of collapsed objects introduce a substantial cumulative opacity to ionizing radiation, even after the smoothly distributed hydrogen in the intergalactic medium has been fully reionized. This opacity causes a delay of ∆z & 1 in redshift between the time of the overlap of ionized bubbles in the intergalactic medium and the lifting of complete Gunn-Peterson Lyα absor...

We present results of numerical simulations of a two-dimensional Kroemer model for the Gunn effect in samples with different number of point contacts. These results can be interpreted with the help of asymptotic theories for particular geometries: a one-dimensional sample and a Corbino disk (a circular sample with a point contact at the center surrounded by a metallic contact attached to its bo...

We propose a tunable microwave device consisting of a Gunn diode with time–delay feedback, which will emit chaotic microwaves. The wavelength is controlled by two incident laser beams which trigger moving multiple Gunn domains. Predicted phenomena include the coexistence of stationary and chaotic states, complicated hysteresis loops, and persistent bistabiliy. This device is potentially useful ...

A large set of quasi-classical, direct dynamics trajectory simulations were performed for decomposition of 1,5-dinitrobiuret (DNB) over a temperature range from 4000 to 6000 K, aimed at providing insight into DNB decomposition mechanisms. The trajectories revealed various decomposition paths and reproduced the products (including HNCO, N(2)O, NO(2), NO, and water) observed in DNB pyrolysis expe...

SINCE the jaw-winking phenomenon was first described by Marcus Gunn (1863), many such cases with other associated findings have been reported. Falls, Krause, and Cotterman (1949) reviewed 115 cases, Simpson (1956) published a comprehensive study, and Dhir and Agarwal (1961) reported a case following ptosis surgery. This case is reported because of an associated peculiarity which does not appear...