48,125 research outputs found
Update on resistance status of Anopheles gambiae s.s. to conventional insecticides at a previous WHOPES field site, "Yaokoffikro", 6 years after the political crisis in Côte d'Ivoire.
No full textBACKGROUND: At Yaokoffikro field site near Bouaké, in central Côte d'Ivoire, a group of experimental huts built in 1996 served over many years for the evaluation of insecticides against highly resistant mosquitoes. Breeding sites of mosquitoes and selection pressure in the area were maintained by local farming practices until a war broke out in September 2002. Six years after the crisis, we conducted bioassays and biochemical analysis to update the resistance status of Anopheles gambiae s.s. populations and detect other potential mechanisms of resistance that might have evolved. METHODS: An. gambiae s.s. larvae from Yaokoffikro were collected in breeding sites and reared to adults. Resistance status of this population to insecticides was assessed using WHO bioassay test kits for adult mosquitoes with seven insecticides: two pyrethroids, a pseudo-pyrethroid, an organochloride, two carbamates and an organophosphate.Molecular and biochemical assays were carried out to identify the L1014F kdr and ace-1R alleles in individual mosquitoes and to detect potential increase in mixed function oxidases (MFO), non-specific esterases (NSE) and glutathione S-transferases (GST) activity. RESULTS: High pyrethroids, DDT and carbamate resistance was confirmed in An. gambiae s.s. populations from Yaokoffikro. Mortality rates were less than 70% with pyrethroids and etofenprox, 12% with DDT, and less than 22% with the carbamates. Tolerance to fenitrothion was observed, with 95% mortality after 24 h.PCR analysis of samples from the site showed high allelic frequency of the L1014F kdr (0.94) and the ace-1R (0.50) as before the crisis. In addition, increased activity of NSE, GST and to a lesser extent MFO was found relative to the reference strain Kisumu. This was the first report detecting enhanced activity of these enzymes in An. gambiae s.s from Yaokoffikro, which could have serious implications in detoxification of insecticides. Their specific roles in resistance should be investigated using additional tools. CONCLUSION: The insecticide resistance profile at Yaokoffikro appears multifactorial. The site presents a unique opportunity to evaluate its impact on the protective efficacy of insecticidal products as well as new tools to manage these complex mechanisms. It calls for innovative research on the behaviour of the local vector, its biology and genetics that drive resistance
Flier for a concert featuring Government Issue, Iron Cross, and S.S. Decontroll, February 20
No full textFlier for a concert featuring Government Issue, Iron Cross, and S.S. Decontroll [sic] (from Boston) at the Chancery on February 20. The flier features an image of a family, the words \make an effort,\ and a bottle of pills on which the lyrics to the Government Issue song \Teenager in a Box\ are written.The year of the concert is unknow
Red Cross International S.S. "Ambriz", carrying the supplies between Lisbon and Marseilles
No full textThis record was harvested from a previous catalogue system and will be withdrawn in 2025. Information in this record may be superseded or incomplete. Visit this record in UMA's new catalogue at: https://archives.library.unimelb.edu.au/nodes/view/431768Regarding the movement of supplies between Lisbon and Marseilles see: 2015.0026.00054254473
Item: [2016.0081.00036] "Red Cross International S.S. "Ambriz", carrying the supplies between Lisbon and Marseilles
Government Issue, Iron Cross, S.S. Decontrol concert flier, The Chancery, Washington, D.C., February 20, 1982
No full textFlier advertising a concert by the Washington, D.C. hardcore punk bands Government Issue and Iron Cross, and the Boston hardcore punk band SS Decontrol (spelled S.S. Decontroll on the flier). The concert occurred at the Chancery in Washington, D.C. on February 20, 1982. The flier was likely designed by Government Issue vocalist John Stabb, based on similarities in its aesthetics and hand lettering found in Stabb's fanzine from that period, "Critical List.
Red Cross International S.S. "Ambriz", carrying the supplies between Lisbon and Marseilles
No full textThis record was harvested from a previous catalogue system and will be withdrawn in 2025. Information in this record may be superseded or incomplete. Visit this record in UMA's new catalogue at: https://archives.library.unimelb.edu.au/nodes/view/431767Regarding the movement of supplies between Lisbon and Marseilles see: 2015.0026.00054254472
Item: [2016.0081.00035] "Red Cross International S.S. "Ambriz", carrying the supplies between Lisbon and Marseilles
Cross-Cultural Meta-Analyses
No full textIn the enormous collection of cross-cultural data that have been published during the last few decades it is difficult to perceive patterns. There is a clear need for systematizing the vast amount of cross-cultural studies and for developing models that explain cross-cultural differences in psychology. Two methods of cross-cultural meta-analysis can be distinguished. First, the instrument-based method of comparing data for one instrument across countries is suitable for instruments which have been administered in many countries. Second, a domain-based meta-analysis used a thematic domain from which culture-comparative studies are sampled instead of one specific instrument or method
Horses being loaded on the S.S. Southern Cross at Circular Quay, Sydney, en route to the Boer War, 1900 [picture].
No full textPart of collection: The Houlder Liner Southern Cross S.S. sailed from Sydney 18th January 1900 for Cape Town direct with portion of N.S.W. Second Contingemt, 24 Officers, 433 Non. Com. Officers and men, 475 horses and 90 horses for Imperial Remount Committee.; Title from album.; Condition: Glued to mount.; Also available in an electronic version via the Internet at: http://nla.gov.au/nla.pic-vn3408857
Low Reynolds Number Effects on Jets from Round, Square and Elliptical Orifices
No full textAn experimental study was undertaken to investigate low Reynolds number effects on mixing characteristics and turbulent transport phenomena in the near and intermediate regions of free orifice jets. The cross-sections examined were round, square and ellipse of aspect ratio 3. For each orifice cross-section, detailed velocity measurements were obtained at the following 4 Reynolds number based on the equivalent diameter and maximum velocity: 2500, 4300, 8500 and 17000. A high resolution particle image velocimetry was used to conduct measurements in the symmetry planes that extend from the exit to 15 equivalent diameters. Preliminary results show that an axis-switching happens at 2.7 equivalent diameters in the case of ellipse nozzle which leads to a higher spread rate compared to square and round ones. Also increase in Reynolds number decreases the jet widths
Cross-Border Cooperation: Subverting Sovereignty?
No full textWork on European spatial planning has led me to criticise what I call territorialism.It conceives of the world in terms of a seamless cover of sovereign stateslooking after its territory each as if it were its property. In the European Unionthough, states are enveloped by a superstructure. Does this mean that there is aEuropean territory and, if so, how does it relate to the territories of its MemberStates? The issue becomes manifest in such efforts, as there have been undertaken,to arrive at a form of European spatial planning.Spatial Planning and Strateg
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