We study the problem of ranking sets of options in terms of freedom of choice. We propose a framework in which both the diversity of the options and the preferences of the agent over the options do play a role. We formulate some axioms that re°ect these two aspects of freedom and we study their logical implications. Two di®erent criteria for ranking sets are characterized, which generalize some...

of fresh fish bile on guinea-worm embryos and also on cyclops infected as well as uninfected. It was found that fresh bile of the following species of fish, Barbus puckelli, Barbus punctatus and Barbus gelius, exerts a definite lethal action on cyclops and also on guinea-worm embryos. When undiluted fresh bile was used, it was found that it took about one to two minutes to kill the cyclops and ...

In this study, tarragon (Artemisia dracunculus L.) the amount of antioxidants and phenolic substances water-based extracts in various concentrations (25g/L, 50g/L, 100g/L) with aroma components plant was determined. Various food pathogens (Escherichia coli ATCC 25922, Salmonella enterica 13076, Listeria monocytogenes 43251) bacterial strains ((Gram-negative (Vibrio harveyi (KF443058), Vibrio vu...

Different hyperaccumulator plants growing in the same contaminated soil may have excessive accumulation of different metals or produce biomass. Therefore, it is important to determine ability plant improve under natural conditions improvement heavy metal-contaminated lands with plants. This study focused on phytoremediation and biomass production capabilities Artemisa Dracunculus L. Erigeron Ca...

In the report “Progress Toward Global Eradication of Dracunculiasis, January 2016–June 2017,” on page 1328, the last sentence of the third paragraph should have read “The 14 Dracunculus specimens came from four baboons and nine dogs from Ethiopia and one dog from Chad.” On page 1331, under “Discussion,” the first sentence of the second paragraph should have read “Additional interventions, inclu...