Forecasting Events in the Complex Dynamics of a Semiconductor Laser with Optical Feedback.

Complex systems performing spiking dynamics are widespread in Nature. They cover from earthquakes, to neurons, variable stars, social networks, or stock markets. Understanding and characterizing their dynamics is relevant in order to detect transitions, or to predict unwanted extreme events.

Compliance with standard precautions among baccalaureate nursing students in a Saudi university: A self-report study.

Meticulous observance of standard infection control precautions by health care providers is strongly recommended for every patient encounter. Assessment of nursing students' compliance should be carried out regularly in order to ensure adherence to protocols. Thus, this study was conducted to assess self-reported compliance with standard precautions among baccalaureates in nursing students in a Saudi university.

wEMBOSS: a web interface for EMBOSS.

Unlabelled: wEMBOSS provides a web environment from which the user can access EMBOSS in a user-friendly way. wEMBOSS supplies each user with space and tools to organize and review his or her work.

Availability: wEMBOSS can be downloaded at http://www.

Mini-F E protein: the carboxy-terminal end is essential for E gene repression and mini-F copy number control.

Mini-F is a segment of the conjugative plasmid F consisting of two origins of replication flanked by regulatory regions, which ensure a normal control of replication and partitioning. Adjacent to the ori-2 origin is a complex coding region that consists of the E gene overlapped by three open reading frames with the coding potential for 9000 Mr polypeptides here designated 9 kd-1, 9 kd-2 and 9 kd-3. In this paper, we show that open reading frame 9 kd-3 is preceded by active promoter and Shine-Dalgarno sequences.

phiEC2, a new generalized transducing phage of Erwinia chrysanthemi.

A collection of Erwinia strains (chrysanthemi and carotovora) was screened for temperate phages. One of them, phiEC2, turned out to be a generalized transducing phage. The structure of its DNA was found to be 62 kb long, terminally redundant, and circularly permuted.

Localisation of mini-Mu in its replication intermediates.

We have located Mu delta 26 sequences straddling the forks in DNA structures which appear during Mu delta 26 replication, i.e., keys, pending keys, dumb- bells , partially fused circles, and asymmetrical forks.

Identification of a mini-Mu by computer analysis of partially denatured DNA.

From the histogram of the partial denaturation of a mini-Mu DNA, we constructed its standard denaturation map. We devised a computer analysis which, by using this map, allows the localization of the mini-Mu DNA in a bacterial DNA population.