Molecular data suggest that Heteromys irroratus bulleri should be recognized as a species-level taxon

Staphylococcus lugdunensis; a pathogen that should be considered in Iran

Background: Staphylococcus lugdunensis is Gram-positive cocci of the staphylococcaceae family. S. lugdunensis despite having a clotting factor (wall coagulase), was classified in the coagulase negative staphylococcus group (CoNS) for lack of free coagulase. Although this bacterium is part of the human normal flora, in terms of virulence, S. lugdunensis is in second place after S. aureus. S. lug...

Clean Water Should Be Recognized as a Human Right

United States refused to support a declaration that would recognize water as a basic human right. The special resolution proposed by Germany and Spain, and endorsed by the President of the UN General Assembly, was instead rejected in favor of further examination of issues of access to safe drinking water and sanitation [1]. Opposition to this declaration runs counter to considerable evidence th...

Trichlorobacter thiogenes should be renamed as a Geobacter species.

Should “price Squeeze” Be a Recognized Form of Anticompetitive Conduct?

Should a “price squeeze” constitute anticompetitive conduct requiring investigation under the antitrust laws? A price squeeze occurs when a vertically integrated firm supplies an input to its downstream competitors at a price that generates a profit margin so low that the competitors exit the downstream market. I ask whether it is sensible to try to use antitrust laws to prevent such conduct or...

How should species phylogenies be inferred from sequence data?

levels as follows: (1) Separate gene trees are inferred from each linkage partition, and (2) the species phylogeny is then inferred from the set of gene trees. A method (Maddison, 1997; Page and Charleston, 1997a, 1997b; Slowinski et al., 1997) termed gene tree parsimony by Slowinski et al. (1997) is the appropriate method for implementing the second step. Gene tree parsimony operates by findin...