Queens of the primitively eusocial wasp Ropalidia marginata appear to maintain reproductive monopoly through pheromone rather than through physical aggression. Upon queen removal, one of the workers (potential queen, PQ) becomes extremely aggressive but drops her aggression immediately upon returning the queen. If the queen is not returned, the PQ gradually drops her aggression and becomes the ...

world's history presents only during occasional long periods of widespread prosperity, to Mr. Lytton's eyes her personal influence does not account either for the great events that happened in her time or for the eminence of the chief characters which surrounded her. We see in his biography, what is lacking in the earlier book, a sincere attempt to refrain from belittling his subject, but certa...

in february and march 2005, the archaeological survey of righ saray desert in the northern part of varzaneh was conducted. ancient rigsray is an area which has been buried by the sandy dunes at the western margin of the marsh gavkhoni. during this project nearly 100 archaeological sites were identified and recorded. one of the most important sites identified by the survey is saba 9 which is the...

The breeding system of social organisms affects many important aspects of social life. Some species vary greatly in the number of breeders per group, but the mechanisms and selective pressures contributing to the maintenance of this polymorphism in social structure remain poorly understood. Here, we take advantage of a genetic dataset that spans 15 years to investigate the dynamics of colony qu...

Most gorgonian octocoral species are described using diagnostic characteristics of their sclerites (microscopic skeletal components). Species in the genus Pterogorgia, however, are separated primarily by differences in their calyx and branch morphology. Specimens of a morphologically unusual Pterogorgia collected from Saba Bank in the NE Caribbean Sea were found with calyx morphology similar to...

BACKGROUND Recent trials have assessed the efficacy and safety of novel monoclonal antibodies such as reslizumab and benralizumab. However, the overall efficacy and safety anti-interleukin (IL) 5 treatment in asthma have not been thoroughly assessed. METHODS Randomized controlled trials (RCTs) of anti-IL-5 treatment on patients with asthma published up to October 2016 in PubMed, Embase, and C...

BACKGROUND Divergent strategies have emerged for the management of severe asthma. One strategy utilises high and fixed doses of maintenance treatment, usually inhaled corticosteroid/long-acting β2-agonist (ICS/LABA), supplemented by a short-acting β2-agonist (SABA) as needed. Alternatively, budesonide/formoterol is used as both maintenance and reliever therapy. The latter is superior to fixed-d...

The bacterium Helicobacter pylori can cause peptic ulcer disease, gastric adenocarcinoma and MALT lymphoma. The cell-surface mucin MUC1 is a large glycoprotein which is highly expressed on the mucosal surface and limits the density of H. pylori in a murine infection model. We now demonstrate that by using the BabA and SabA adhesins, H. pylori bind MUC1 isolated from human gastric cells and MUC1...

Spatiotemporal Encoding Diffusion Weighted Imaging of the Breast: Comparison with SE-EPI-based methodology Eddy Solomon, Noam Nissan, Amir Seginer, Edna Furman-Haran, Myra Shapiro-Feinberg, Hadassa Degani, and Lucio Frydman Chemical Physics, Weizmann Institute of Science, Rehovot, Israel, Biological Regulation, Weizmann Institute of Science, Rehovot, Israel, Biological Services, Weizmann Instit...