ndudablemente, MS-DOSR (MicroSoft Disk Operating System) ha sido el sistema operativo de mayor éxito en la historia, estando presente en una amplia base de equipos de tipo personal. Si bien se le considera obsoleto después de la aparición de nuevos sistemas tales como Windows, DOS aún representa una herramienta flexible y sumamente poderosa como monitor para equipos dedicados, principalmente pa...

Secure authentication features of communication and electronic commerce protocols involve computationally expensive and memory intensive cryptographic operations that have the potential to be turned into denial-of-service (DoS) exploits. Recent proposals attempt to improve DoS resistance by implementing a trade-off between the resources required for the potential victim(s) with the resources us...

Well-defined crystalline PbSe nanocubes and nanospheres have been synthesized through a simple hydrothermal method by using Pb2+- EDTA and Pb2+- oleylamine complexes at 180°C for different reaction times. Composition and morphology of the samples have been characterized by means of XRD and SEM. Gradual release process of Pb2+ from Pb2+-EDTA and Pb2+-oleylamine complexes can adjust the growth ra...

Digital's PATHWORKS for DOS version 4.1 personal computer integration software includes two network virtual device drivers for the Microsoft Windows environment. These drivers allow Windows applications operating in a protected processor mode and standard DOS applications in a virtual machine to concurrently access services designed to run in real mode under the DOS operating system. The networ...

Uma série de cetonas e ésteres α,β-insaturados β-amino ésteres, 4a-h e 6a-d, derivados de α-amino ácidos foi obtida a partir dos cloridratos dos α-amino ésteres 2a-d e dos compostos 1,3-dicarbonílicos 3a,b e 5 em presença de trietilamina. Estes compostos foram preparados empregando energia de microondas, sem uso de solvente, utilizando como suporte sólido K-10 ou KSF e também foram efetuadas re...

Diversity-oriented synthesis (DOS) is an important field involving the synthesis of libraries of diverse small molecules for applications including biological screening. The last decade has witnessed major progress in the field, with continued emphasis on structural and functional diversity for DOS library construction. A number of recent reviews have updated the community on this topic, includ...

1DDS, MSc, PhD, Graduate Student (PhD degree), Department of Dental Materials and Prosthodontics, UNESP – São Paulo State University “Júlio de Mesquita Filho” São José dos Campos Dental School. 2DDS, MSc, PhD, Associate Professor, Department of Dental Materials and Prosthodontics, UNESP – São Paulo State University “Júlio de Mesquita Filho” São José dos Campos Dental School. 3DDS, MSc, PhD, Ass...

The partial occupation numbers and density of states (DOS), and the total DOS at the Fermi level are calculated as a function of reduced atomic volume for bcc and fcc alkali metals employing the linearmuffin-tin-orbital (LMTO) method. By means of the abrupt changes obtained in the partial and total DOS values at the Fermi level, good agreement with regard to experiment were found in predicting ...

Availability requires that computer systems function normally without loss of resources to legitimate users. One of the most challenging issues to availability is the denial-ofservice (DoS) attack. DoS attacks constitute one of the major threats and among the hardest security problems in today’s Internet. The main aim of a DoS is the disruption of services by attempting to limit access to a mac...