Chromosome alignment on the spindle (top) is lost if Cdc42 is inactivated (bottom). N ar um iy a/ M ac m ill an Kyoto, Japan), and colleagues reveal microtubules at the cell cortex, are also needed for microtubule–kinetochore attachments, thus uniting two previously distant fields of study. Rho GTPases are needed during cytokinesis, when Rho helps build a contractile actin ring. Another Rho fam...

Numerous software packages are being used and updated regularly on most computer systems. Installing all these software packages is a formidable task because each one has a different procedure for compiling or for placing the files required at run time. The LUDE (Logithèque Universitaire Distribuée et Extensible) software library is an organization for installing software packages, a set of too...

PURPOSE Generation of airborne particulate matter during the handling and opening of various syringe and needle packages in a laminar-airflow workbench (LAFW) and in a biological safety cabinet (BSC) was measured to compare the effects on air cleanliness conditions (International Organization for Standardization [ISO] class 5 within the LAFW or BSC and ISO class 7 in buffer areas). METHODS Tw...

introduction we present a case report of a healthy man who ingested a large number of well-manufactured cocaine packages to smuggle them across international borders. case presentation a 36-year-old man ingested cocaine packages worth approximately us $900,000 to transport it from dubai to madrid. he was arrested by police at istanbul ataturk airport for suspected body packing of drugs. on arri...

Deterministic branch and bound methods for the solution of general nonlinear programs have become increasingly popular during the last decade or two, with increasing computer speed, algorithmic improvements, and multiprocessors. There are presently several commercial packages. Although such packages are based on exhaustive search, not all of them rigorously take account of roundoff error, singu...