We explore the phase behavior of a rigid achiral bent-core model system. Nematic and smectic phases form at higher densities, whereas micelles and columns composed of chiral clusters of these molecules self-assemble at lower densities. No nucleation mechanism requiring transient chirality is possible in the formation of these chiral superstructures due to the rigid achiral nature of the substit...

This paper describes an exponential transient excision algorithm (ETEA). In biomedical time series analysis, e.g., in vivo neural recording and electrocorticography (ECoG), some measurement artifacts take the form of piecewise exponential transients. The proposed method is formulated as an unconstrained convex optimization problem, regularized by smoothed l1-norm penalty function, which can be ...

background primary congenital hypothyroidism (ch) is the most common treatable cause of mental retardation and can be classified into permanent and transient types. the purpose of this study was to determine the prevalence of permanent and transient congenital hypothyroidism (ch) in hamadan, west province of iran. methods the study population included all cases with primary congenital hypothyro...

background: transient and stable transformation of host plants are the common techniques to produce transgenic plants. however, the main drawback of stable transformation is the fact that it takes quite a long time to produce a transgenic line. while, transient gene expression is a quick method to produce recombinant proteins in plants.  objective: the main goal of the present study was to eval...

cerebrovascular attack (cva) and transient ischemic attack (tia) are major causes of emergency department visits around the globe. a significant number of these patients may experience repeat attacks if left untreated. several risk stratifying scoring systems have been developed in recent years to point out the high risk patients. abcd 2 is based on age, blood pressure, clinical status, diabete...

one of the most preventable causes of mental and growth retardation is congenital hypothyroidism (ch). this study tries to investigate growth and mental outcome of patients with ch. since november 2006 and november 2007 in guilan province, north of iran, all neonates who were diagnosed with ch, evaluated for etiology of ch by laboratory follow up, thyroid sonography or scan. growth and developm...

A classical mixed sensitivity minimization approach and a model matching formulation are compared with the goal to design a linear parameter-varying augmented state feedback control law for a laboratory-scale control moment gyroscope. Dynamic weighting filters are used to impose integral action and roll-off on the controller. Consequently, measurement noise is effectively suppressed and steady ...

randomization is an essential component of sound clinical trials which prevents selection biases and helps in blinding the allocations. randomization is a process by which subsequent subjects enrolled into trial groups only by chance which is essentially eliminates selection biases. a serious consequence of randomization is severe imbalance among treatment groups with respect to some prognostic...

Design of blast resistant structures is an important subject in structural engineering, attracting the attention of governments, researchers, and engineers. Thus, given the benefits of optimization in engineering, development and assessment of optimization methods for optimum design of structures against blast is of great importance. In this research, multi-objective optimization of steel momen...