Training neural networks to quickly learn new skills without forgetting previously learned skills is an important open challenge in machine learning. A common problem for adaptive networks that can learn during their lifetime is that the weights encoding a particular task are often overridden when a new task is learned. This paper takes a step in overcoming this limitation by building on the re...

BACKGROUND Central obesity and hyperinsulinaemia of polycystic ovary syndrome (PCOS) are associated with chronic sympathetic over activity. OBJECTIVE To evaluate the autonomic functions and to indicate the superiority, if any, for those functions in the diagnosis of sympathetic over activity in PCOS women. MATERIALS AND METHODS Sixty-four PCOS patients and 40 women served as the control gro...

Enterprises compete in high dynamic and fast changing markets. Reacting quickly and flexibly to market changes is a crucial competitive advantage for an enterprise. Therefor premises of strategic planning and achievement of strategic goals have to be controlled permanently and in a systematic way. Strategic control which is part of strategic management monitors premises of the corporate strateg...

anamorphs of pleosporaceae are important plant pathogenic fungi. despite efforts to clarify phylogenetic relationships of this group there is still uncertainty about taxonomic position of some genera. therefor to elucidate relationships among anamorphic form of some pleosporalean taxa, the internal transcribed spacer (its) and rna polymerase second largest subunit (rpb2) of some members were de...

deviant workplace behavior is referred to voluntary behavior that violates significant organizational norms and therefor threatens the well-being of the organization and its members. various kinds of these behaviors are recognized. in addition, many researches have been done regarding the relevant factors to these behaviors such as individual factors, group factors, leadership, managerial and o...

COMPARISON OF DIFFERENT SEROLOGICAL ASSAYS FOR THE DIFFERENTIAL DIAGNOSIS OF BRUCELLOSIS. Two indirect and two competitive Enzyme-linked immunosorbent assays (I-ELISA102, I-ELISA103, C-ELISA1 and C-ELISA2 respectively) have been evaluated in comparison with traditional test such as Radial Immunodiffusion (RID), Complement Fixation (CF), Rose Bengal Agglutination (RB) and Rivanol agglutination (...

High speed trains permit faster travelling between long distance destinations, making it an easy and comfortable way of travelling. The pantograph is the element of the train that collects electrical current from the cable system above (the catenary), to the train motors. The contact force variation can cause contact losses, electric arc formations and sparking. This deteriorates the quality of...

Enterprises compete in high dynamic and fast changing markets. Reacting quickly and flexibly to market changes is a crucial competitive advantage for an enterprise. Therefor premises of strategic planning and achievement of strategic goals have to be controlled permanently and in a systematic way. Strategic control which is part of strategic management monitors premises of the corporate strateg...

Taxonomyhas two important roles: to name organisms and to classify them. Classifications are useful because they contain information about relationships.All species in the same genus should share many behavioral, biochemical, ecological and biological properties because they are closely related evolutionarily. The effect of pollution on a species at one location should be similar to the effect ...

BACKGROUND Patient satisfaction is essential and must be taken into account when decisions are being made about changes and enhancements to services. OBJECTIVES The aim of the current study was to assess patient satisfaction with the medical and nursing services provided to patients admitted to teaching hospitals affiliated to Arak University of Medical Sciences. MATERIALS AND METHODS This ...