Do female amphibians and reptiles have greater reproductive output if they have more mates?

Finite groups have even more centralizers

For a finite group $G$‎, ‎let $Cent(G)$ denote the set of centralizers of single elements of $G$‎. ‎In this note we prove that if $|G|leq frac{3}{2}|Cent(G)|$ and $G$ is 2-nilpotent‎, ‎then $Gcong S_3‎, ‎D_{10}$ or $S_3times S_3$‎. ‎This result gives a partial and positive answer to a conjecture raised by A‎. ‎R‎. ‎Ashrafi [On finite groups with a given number of centralizers‎, ‎Algebra‎ ‎Collo...

Carbapenems: do they have a future?

The Eyes Have It—Or Do They?

Susan Lewallen and Terrie Taylor* Kilimanjaro Centre for Community Ophthalmology, University Cape Town Department of Ophthalmology, Groote Schuur Hospital, Observatory, Cape Town, South Africa; Department of Osteopathic Medical Specialties, College of Osteopathic Medicine, Michigan State University, East Lansing, Michigan; Blantyre Malaria Project, University of Malawi College of Medicine, Blan...

What Do They Have in Common?

Type 1 and type 2 diabetes frequently co-occur in the same families, suggesting common genetic susceptibility. Such mixed family history is associated with an intermediate phenotype of diabetes: insulin resistance and cardiovascular complications in type 1 diabetic patients and lower BMI and less cardiovascular complications as well as lower C-peptide concentrations in type 2 diabetic patients....

Hybrid Procedures, Do They Have a Role?

A hybrid strategy is a combination of catheter-based therapy and traditional surgical intervention. This concept of combining the tools available only in the catheterization laboratory with the tools available only to the surgeon in order to minimize surgical morbidity has evolved since its implementation in the 1990s.1 Over the past decade, with advancement in stent technology and refinement o...