Attentional deficits of the learning disabled child

In light of the host of problems attributed to attentional deficits encountered in the education of the learning disabled, this research study was developed to review the theoretical issues of attention, to examine the literature and research related to current strategies in special education which deal directly with attentional deficits and to investigate the implications for educational planning and programming

Paper Session I-B - A Ground Floor Opportunity: The International Space Research Park at NASA\u27s John F. Kennedy Space Center

The International Space Research Park™ (ISRP) at NASA’s John F. Kennedy Space Center (KSC) is a partnership between NASA and the State of Florida to build an environment for world-class research and technology development performed through the collaborative efforts of industry, academia, and government. This initiative offers an unprecedented opportunity for eligible organizations – commercial, university-affiliated, and governmental – to access a prime site on KSC for location of their activities related to the International Space Station, the emerging KSC Spaceport Technology Center, and the Cape Canaveral Spaceport. A 400-acre site south of the KSC Visitor Complex will be developed as the ISRP. This paper describes the concept for this park, why and how it will be built, the benefits for both public and private sectors, and what steps the ISRP partnership has taken toward implementation

Atomic force microscopy analysis of nanoparticles in non-ideal conditions

Nanoparticles are often measured using atomic force microscopy or other scanning probe microscopy methods. For isolated nanoparticles on flat substrates, this is a relatively easy task. However, in real situations, we often need to analyze nanoparticles on rough substrates or nanoparticles that are not isolated. In this article, we present a simple model for realistic simulations of nanoparticle deposition and we employ this model for modeling nanoparticles on rough substrates. Different modeling conditions (coverage, relaxation after deposition) and convolution with different tip shapes are used to obtain a wide spectrum of virtual AFM nanoparticle images similar to those known from practice. Statistical parameters of nanoparticles are then analyzed using different data processing algorithms in order to show their systematic errors and to estimate uncertainties for atomic force microscopy analysis of nanoparticles under non-ideal conditions. It is shown that the elimination of user influence on the data processing algorithm is a key step for obtaining accurate results while analyzing nanoparticles measured in non-ideal conditions

Proteases of haematophagous arthropod vectors are involved in blood-feeding, yolk formation and immunity : a review

Ticks, triatomines, mosquitoes and sand flies comprise a large number of haematophagous arthropods considered vectors of human infectious diseases. While consuming blood to obtain the nutrients necessary to carry on life functions, these insects can transmit pathogenic microorganisms to the vertebrate host. Among the molecules related to the blood-feeding habit, proteases play an essential role. In this review, we provide a panorama of proteases from arthropod vectors involved in haematophagy, in digestion, in egg development and in immunity. As these molecules act in central biological processes, proteases from haematophagous vectors of infectious diseases may influence vector competence to transmit pathogens to their prey, and thus could be valuable targets for vectorial control