Fluorescein as an Indicator of Antihistaminic Activity: Inhibition of Histamine-induced Fluorescence in the Skin of Human Subjects: Samuel C. Bukantz and Gustave J. Dammin 224 Effect of Hormone on Root Formation in Artocarpus communist: Thomas J. Muzik ...... 225 The Inhibition of Virus Increase by Malachite Green: William N. T kahashi .................................... 226 Stability of Solut...

Chapter Outline 1. How Do New Viral Diseases Emerge? 215 1.1 Discovery of the Etiology of an Existing Disease 215 1.2 Increase in Disease Caused by an Existing Virus 216 1.3 Accumulation of Susceptible Hosts and Viral Reemergence 217 1.4 Virus New to a Specific Population 217 2. Zoonotic Infections as a Source of Emerging Viral Diseases 217 2.1 Dead-end Hosts 217 2.2 Limited Spread among Humans...

The natural radioactivity due to the presence of (226)Ra, (232)Th and (40)K in selected building materials used in Jordanian building constructions has been measured using gamma-ray spectrometer with a Hyper Pure germanium detector. The average activity concentrations observed in different building materials ranged from 27.7 +/- 7.5 to 70.4 +/- 2.8, 5.9 +/- 0.67 to 32.9 +/- 3.9 and 30.8 +/- 0.8...

The activity concentrations of (226)Ra, (232)Th and (40)K in seven brands of Portland cement used in Nigeria have been determined using a gamma-ray spectrometer with a hyperpure germanium detector. A total of 22 samples were collected from suppliers. The mean activity concentrations varied between 19.2 and 85.1 Bq kg(-1), 12.9 and 31.7 Bq kg(-1), and 31.5 and 116 Bq kg(-1) for (226)Ra, (232)Th ...

Acoustic-reflex growth functions (ARGFs) were obtained from 20 normal-hearing listeners. Contralateral acoustic reflexes (ARs) were elicited with pure tones of 2000 Hz. The magnitude of changes in static compliant susceptance (BA) and conductance (GA) were monitored with probe-tone frequencies of 226 Hz, 678 Hz and 1000 Hz. ARGFs were obtained with six combinations of probe-tone frequency/admit...

Class A carbapenemases are a major threat to the potency of carbapenem antibiotics. A widespread carbapenemase, KPC-2, is not easily inhibited by β-lactamase inhibitors (i.e., clavulanic acid, sulbactam, and tazobactam). To explore different mechanisms of inhibition of KPC-2, we determined the crystal structures of KPC-2 with two β-lactamase inhibitors that follow different inactivation pathway...

UNLABELLED Audiological evaluation in infants should include the middle ear (immitance measures and otoscopy) and also a cochlear evaluation. AIM To check which tympanometry tone test (226 Hz or 1000 Hz), transient otoacoustic emissions and otoscopy. METHODS Transient otoacoustic emissions were taken from sixty infants ranging from zero to four months of age. The babies were assigned to two...

The process of gas generation for radium sources embedded in metal matrices (or metal capsules) is described in order to obtain the conditions of safe immobilisation of radium sources in metal matrices. For this purpose a simple model describing immobilisation of sources in a metal housing is proposed. Both helium and radon generation is considered near a radium source. Partial pressures of hel...

Site-directed chemical cleavage of lactose permease indicates that helix V is in close proximity to helices VII and VIII. To test this conclusion further, permease containing a biotin-acceptor domain and paired Cys residues at positions 148 (helix V) and 228 (helix VII), 148 and 226 (helix VII), or 148 and 275 (helix VIII) was affinity purified and labeled with a sulfhydryl-specific nitroxide s...