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Discovery of controlled swarm in bacteria

A study led by researchers from Universitat Autonoma de Barcelona describes one of the mechanisms in which pathogenic bacteria populations control the way they spread over the surface of the organs they infect and stop when they detect the presence of an antibiotic, only to resume again when the effect wears off.



Controlled Laboratory Reactor

Knowledge of the heat transfer coefficients of reactors can provide important information relating to the thermodynamics of a reaction and estimation of the overall reaction power and enthalpy.



Peristaltic pumps bring controlled flow to scientific instruments

The Cecil range of UV/visible spectrophotometers includes models designed for student teaching, routine analysis, quality control applications and cutting-edge research.



Controlled cooking and forming by extrusion

The new ECOtwin enables the cooking degree and the bulk density of extruded products to be accurately selected and controlled.



Using controlled vacuum as a tool for use in chemical laboratories

Various methods for application related control of vacuum are compared with regard to the value for the user. Important criteria are process time, solvent recovery rate and ease of use and handling. Modern speed controlled chemistry diaphragm pumping units with fully automatic controller offer many advantages. Dr Juergen Dirscherl reports.



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