UK PubMed Central (United Kingdom)

The rejection thresholds of Phormia regina Meigen for twenty-four glycols have been determined. A definite relationship between the concentration of the test material and the distribution...Full Text Available

UK PubMed Central (United Kingdom)

The electrical responses of the neurons associated with the various types of chemosensory hairs of the blowfly, Phormia regina Meigen, following stimulation by chemical and mechanical...Full Text Available

British Library Electronic Table of Contents (United Kingdom)

Serotonin is an important signaling molecule involved in the control of feeding in flies and other animals. In this study, a potential neurohemal release site for serotonin and the effects of exogenous serotonin on protein feeding were examined in the black blow fly, Phormia regina. A dense network of varicose neural processes exhibiting serotonin-like immunoreactivity was identified on the dorsal region of the thoracico-abdominal ganglion in P. regina. This dorsal region of the central nervous system is a likely site for the release of serotonin into the hemolymph. Circulating serotonin may have multiple systemic effects on fly physiology, including modulating or regulating feeding related processes and diuresis. Injections of exogenous serotonin reduced protein meal size in female flies ...

UK PubMed Central (United Kingdom)

In the labellar chemosensory hairs of the blowfly, Phormia regina Meigen, stationary amplitudes of the slow potentials induced by salt and sugar stimulations were decreased to 50–80%...Full Text Available

UK PubMed Central (United Kingdom)

Behavioral responses to labellar stimulation with 19 L-amino acids were predicted on the basis of electrophysiological responses of largest labellar hairs. With the exceptions alanine, aspartic...Full Text Available

Energy Technology Data Exchange (ETDEWEB)

Research facilities and personnel in high efficiency separation processes for carbon dioxide removal from industrial sources, such as fossil fuel fired power stations, goal gasification plants, and hydrogen production units for enhanced oil recovery applications at the University of Regina were described. A brief summary of current projects, such as the determination of CO{sub 2} absorption capacity of sterically hindered amines, the formulation of high CO{sub 2} absorption capacity solvents, the search for high performance absorbers and regenerators, studies on material corrosion, and optimization and cost studies of co-production of CO{sub 2} and electricity, was also provided.

International Nuclear Information System (INIS)

The document reports the main issues discussed during the first course-debate on quality controls in radiotherapy, held in Rome in December 3-4, 1998 and May 3-5 1999 in collaboration between the Istituto Superiore di Sanita' and the Istituto Regina Elena. The points considered critical to the quality assurance in radiotherapy by the participants are presented in relation to the total radiotherapy procedure.

Energy Technology Data Exchange (ETDEWEB)

The document reports the main issues discussed during the first course-debate on quality controls in radiotherapy, held in Rome in December 3-4, 1998 and May 3-5 1999 in collaboration between the Istituto Superiore di Sanita' and the Istituto Regina Elena. The points considered critical to the quality assurance in radiotherapy by the participants are presented in relation to the total radiotherapy procedure. [Italian] Questo documento e' dedicato al primo corso-dibattito sui controlli di qualita' in radioterapia svoltosi a Roma il 3-4 dicembre 1998 e il 3-5 maggio 1999 in collaborazione tra l'Istituto Superiore di Sanita' e l'Istituto Regina Elena. Esso presenta gli argomenti ritenuti critici per l'assicurazione di qualita' in radioterapia in relazione all'intera procedura radioterapica, in base alle esperienze dei partecipanti.

British Library Electronic Table of Contents (United Kingdom)

The dipteran parasitoids Therobia leonidei and Homotrixa alleni (Tachinidae) use acoustic cues to locate their calling tettigoniid (Ensifera, Orthoptera) hosts. The sexually dimorphic tympanal organs of both fly species are located at the prosternum. For comparison a homologous chordotonal organ in the non-hearing fly Phormia regina, Meigen (Phoridae) is also described. The scolopidial sense organs of the ears have approximately 180 sensory cells in Th. leonidei and 250 cells in H. alleni. Interspecific analysis indicates that the cell number and arrangement might be genus specific in Tachinidae. The mononematic scolopidia, each with one sensory cell, are of different sizes and insert at the tympanal membrane. Large scolopidial units (diameter of sensory cells up to 50??m) extend longitudi...

Energy Technology Data Exchange (ETDEWEB)

This paper describes research and development activities at the University of Regina, Saskatchewan, Canada on Optimization of CO{sub 2} Extraction Process Technologies. The ultimate goal of this research is to develop better and more effective CO{sub 2} separation processes which can be used to recover CO{sub 2} from industrial sources such as coal-fired power plants and coal gasification complexes at the lowest possible capital and operating costs. The research program has been supported by Saskatchewan Power Corporation, Saskatchewan Energy and Mines, Prairie Coal Ltd., the Canada Centre for Mineral and Energy Technology (CANMET), Fluor Daniel Inc. (USA), Sulzer Chemtech (Switzerland), Wascana Energy Inc., and Natural Sciences and Engineering Research Council of Canada (NSERC). Currently, six parallel and complementary projects have been carried out at the Process Systems Laboratory. These projects are: (1) Searching for new sterically hindered amines for high ...