in present work, we have calculated the electronic properties including density of states and electron density for gan, inn and inxga1-xn  in wurtzite phase for x=0.5. the study is based on density functional theory with full potential linearized augmented plane wave method by generalized gradient approximation for calculating electronic properties. in this report we concluded that inxga1-xn ba...

VANET (Vehicular Ad-hoc Network) which is a hy- brid network (combination of infrastructure and infra- structure-less networks) is an emergent technology with promising future as well as great challenges especially in security. By the other hand this type of network is very sensible to safety problem. This paper focuses on a new mechanism for DoS (denial of service) attacks on the physical and ...

We propose a framework based on proactive server roaming to mitigate the effects of Denial-of-Service (DoS) attacks. The active server proactively changes its location within a pool of servers to defend against unpredictable and undetectable attacks. Only legitimate clients can follow the active server as it roams. We present algorithms that are secure, distributed, randomized, and adaptive for...

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the n-(2-benzoyl-phenyl) oxalyl derivatives are important models for studying of three-centered intramolecular hydrogen bonding in organic molecules. the quantum theoretical calculations for two crystal structures of n-(2-benzoyl-phenyl) oxalyl (compounds i and ii) were performed by density functional theory (b3lyp method and 6-311+g* basis set). from the optimized structures, geometric paramet...

1Graduate Student, Department of Dental Materials and Prosthodontics, São José dos Campos Dental School, UNESP, São José dos Campos, São Paulo, Brazil. 2DDS, MSc, PhD Student, Department of Dental Materials and Prosthodontics, São José dos Campos Dental School, UNESP, São José dos Campos, São Paulo, Brazil. 3DDS, MS, PhD, Associate Professor, Department of Dental Materials and Prosthodontics, S...

PURPOSE Functional imaging with tomographic near-infrared diffuse optical spectroscopy (DOS) can measure tissue concentration of deoxyhemoglobin (Hb), oxyhemoglobin (HbO2), percent water (%water), and scattering power (SP). In this study, we evaluated tumor DOS parameters and described their relationship to clinical and pathologic outcome in patients undergoing neoadjuvant therapy for locally a...

to clarify the genetic relationships among the lidia breed lineages and two main portuguese lidia bovine populations, casta portuguesa and brava dos açores, 24 autosomal microsatellites were analyzed in 120 samples. brava dos açores showed the highest observed and expected heterozygosity (0.73 and 0.70, respectively) while casta portuguesa showed the lowest observed and expected heterozygosity ...

In recent years, Denial of Service attacks have evolved into a predominant network security threat. Motivated by an impressive variety of reasons and directed against an equally impressive variety of targets, DoS attacks are not as difficult to launch as one would expect. Protection against them is, however, disproportionately difficult. Recognising the fact that the networks of the near future...

Distributed web services are under constant threat of being attacked from nodes, internal or external to the system. Internal attacks may result from hijacking of trusted web servers, resulting in loss/corruption of information, and Denial of Service (DoS) to clients. External attacks can occur from hijacking of trusted clients or malicious nodes leading to DoS to clients. The paper focuses on ...