BACKGROUND Bone allografts carry a risk of infection, so terminal sterilization by gamma irradiation at 25kGy is recommended; but is deleterious to bone quality. Contemporary bone banking significantly reduces initial allograft bioburden, questioning the need to sterilize at 25kGy. METHODS We inoculated allograft bone with Staphylococcus epidermidis and Bacillus pumilus, then exposed them to ...

Pollen sterility is one of the main hindrances against the utilization of strong intersubspecific (indica-japonica) heterosis in rice. We looked for neutral alleles at known pollen sterility loci Sd and Se that could overcome this pollen sterility characteristic. Taichung 65, a typical japonica cultivar, and its near isogenic lines E7 and E8 for pollen sterility loci Sd and Se were employed...

one glass bead of 3 mm diameter per 5 mnl of blood. If this is not practicable blood may be collected into heparin and then defibrinated in the same manner after the addition of excess thrombin to neutralize the heparin. Blood from patients on chronic dialysis often requires the addition of thrombin to facilitate defibrination because of the residual heparin and other circulating anticoagulants...

Recent genetic analyses of closely related species of Drosophila have indicated that hybrid male sterility is the consequence of highly complex synergistic effects among multiple genes, both conspecific and heterospecific. On the contrary, much evidence suggests the presence of major genes causing hybrid female sterility and inviability in the less-related species, D. melanogaster and D. simula...

REFERENCES 1. Hu D, Hook EW III, Goldie SJ. Screening for Chlamydia trachomatis in women 15 to 29 years of age: a costeffectiveness analysis. Ann Intern Med 2004;141:501–13. 2. Boerma JT, Mgalla Z. Introduction. In Women and infertility in sub-Saharan Africa: a multi-disciplinary perspective. Boerma JT, Mgalla Z, eds. KIT, Amsterdam, 2001:13–23. 3. Larsen U, Menken J. Measuring sterility from i...

GORSKI, ROGER. Modijcation of ovulatory mechanisms by postnatal administration of estrogen to the rat. Am. J. Physiol. 205(5) 1 842-844. I g63.pThe current studies have demonstrated that the single injection of IOO pug estradiol benzoate to 5-day-old female rats results in permanent sterility. When adult, these rats exhibit anovulatory vaginal cycles in which the stage of vaginal cornification ...

OBJECTIVE Recommendations that purified protein derivative (PPD) RT-23 tuberculin should not be kept and used more than 24 to 48 hours after opening are rarely complied with. The aim of this study was to determine whether using PPD RT-23 tuberculin from vials that had been open for a longer time could affect results of tuberculin tests and whether the solution could become contaminated. METHO...

apricot (prunus armeniaca), palys an important role in fruit production industry in iran. irregular set of fruit, caused by either sterility of flower organs or incompatibility has been the main problem in apricot production over the years. in this study, it has been attempted to determine these phenomena for four apricot cvs. namely ‘shahroodi’, ‘nasiri’, ‘jahangiri’ and ‘noori’ through the me...

This paper presents the development of a real-time microsensor-based monitoring system that can be used to detect and characterize volatile organic compounds in soil and groundwater. The system employs an array of polymer-based microsensors (chemiresistors) packaged in a waterproof housing that is designed to protect the sensor from harsh subsurface environments, including completely water-satu...