In many situations, the existence of several equilibrium points in a dynamical system makes its dynamics more complex and allows some special structures. Examples include the well-known multiscroll attractors ([Wang, 2009; Qi et al., 2008; Liu & Chen, 2004; Li, 2008; Wang et al., 2009; Lü et al., 2008; Yu et al., 2006; Yu et al., 2008, 2010a; Wang & Chen, 2012] and references therein) such as c...

The quality of electric power became an important issue for the electric utility companies and their customers. It is often synonymous with voltage quality since electrical equipments are designed to operate within a certain range of supply specifications. For instance, current microelectronic devices are very sensitive to subtle changes in power quality, which can be represented as a disturban...

Álvaro Corral1, Ramon Ferrer-i-Cancho2 & Albert Dı́az-Guilera3 1Centre de Recerca Matemàtica, Edifici Cc, Campus Bellaterra, E-08193 Cerdanyola, Barcelona, Spain. 2Departament de Llenguatges i Sistemes Informatics, Universitat Politecnica de Catalunya, Jordi Girona 1-3, E-08034 Barcelona, Spain. 3Departament de Fisica Fonamental, Universitat de Barcelona, Marti i Franques 1, E-08028 Barcelona, S...

Optical fiber-based sensor technology offers the possibility of developing a variety of physical sensors for a wide range of physical parameters (Nalwa, 2004). Compared to conventional transducers, optical fiber sensors show very high performances in their response to many physical parameters such as displacement, pressure, temperature and electric field. Recently, high precision fiber displace...

Bradycardia has been reported during intraoperative settings of craniofacial, cerebropontine angle and trigeminal ganglion surgeries (Schaller et al. (2009, 1999); Parbhakar et al. (2009); Koerbel et al. (2005); Roberts et al. (1999)). It is also commonly seen in children undergoing orbital and maxillary fractures repair. This mechanism has been described as the trigeminocardiac reflex (TCR) (S...

the potential sources of cr (vi) are various effluents from metallurgy, electroplating, leather tanning, textile dyeing, paint, ink, and aluminum manufacturing industries. these industrial effluents can contain cr (vi), in the concentration range of 10 to 100 mg/l (nakano et al 2000), which is much higher than the standard limit; 0.5 mg/l in industrial wastewater (epa). in aqueous systems, chro...

introduction tekieh lead-zinc ore deposit that is located in the sanandaj-sirjan structural zone has been recognized as one of the most important mineralized regions in malayer-isfahan metallogenic sub-state, south east of arak (momenzadeh and ziseman, 1981). carbonate host units have been developed along (or across) the vishan-tekieh anticline as the main structure extended in nw-se trends (an...

Imaging is being increasingly used in paediatrics to aid diagnosis and monitor treatment (Kilbaugh et al., 2010). Magnetic Resonance Imaging (MRI) in particular is the modality of choice for neurological concerns and is becoming more widely used for thoracic and abdominal imaging (Edwards and Arthurs, 2011). Due to the difficulties of gaining children’s compliance and co-operation in both Compu...

The development of modern neuroscience tools has a significant impact on the progress in the field of neuroscience (Kandel, 1982). New tools has greatly faciliated the neuroscience resreach, and can be critical for studies of brain circuit organization and function. Although many approaches are useful by themselves, it is desirable to combine existing powerful techniques to harness each techniq...