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315 results for “Extreme”

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Research ArticleOpen accessIn the abstractMajor Challenges of Iranian Rural Communities for Achieving Sustainable DevelopmentKhalil Kalantari, Hossein Shabanali Fami, Ali Asadi et al.Problem statement: Rural population in Iran live in an unstable environment and geographically, villages are extremely diverse and more than 65% of them have population less than 250 persons, which do not provide sufficient population threshold for most of services and sustainable economic and job creation activities. Only 7.5% of rural areas have population more than 1000 persons. Therefore, the … …American Journal of Agricultural and Biological Sciences, Vol. 3, Issue 4 · 31 Dec 2008 · 7,925 accessesView PDFCite
Research ArticleOpen accessIn the abstractPerformance Optimization of Discrete Wavelets Transform Based Image Watermarking Using Genetic AlgorithmsA. Al-Haj, A. Abu-ErrubThe excellent spatial localization, frequency spread and multi-resolution characteristics of the Discrete Wavelets Transform (DWT), which were similar to the theoretical models of the human visual system, facilitated the development of many imperceptible and robust DWT-based watermarking algorithms. There had been extremely few proposed algorithms on optimized DWT-based image watermarking that can simultaneously provide perceptual transparency and robustness since these … …Journal of Computer Science, Vol. 4, Issue 10 · 31 Oct 2008 · 6,324 accessesView PDFCite
Research ArticleOpen accessIn the abstractImpact of MD5 Authentication on Routing Traffic for the Case of: EIGRP, RIPv2 and OSPFK. A. Al-Saud, H. M. Tahir, Moutaz Saleh et al.Problem Statement: With the free flow of routing data and the high availability of computer resources, possible threats to the networks can result in loss of privacy and in malicious use of information or resources that can eventually lead to large monetary losses. Approach: MD5 Authentication: Due to the major role that routing protocols play in computer network infrastructures, special … …Journal of Computer Science, Vol. 4, Issue 9 · 30 Sep 2008 · 7,204 accessesView PDFCite
Research ArticleOpen accessIn the abstractImpact of Four Wave Mixing (FWM) in Routing and Wavelength AssignmentTan Saw Chin, F.M. Abbou, Ewe Hong TatThe impact of Four-Wave-Mixing (FWM) is investigated using the proposed Assign Shortest Path First (ASPF) algorithm for wavelength assignment in Routing and Wavelength Assignment (RWA). Results show that ASPF algorithm indulges more FWM crosstalk in high optical channels for all input light power and low input power able to reduce he effect of FWM. The blocking probability due to FWM … …American Journal of Applied Sciences, Vol. 5, Issue 8 · 31 Aug 2008 · 6,753 accessesView PDFCite
Research ArticleOpen accessIn the abstractPile Instrumentation Using Retrievable SensorsFaisal Hj. Ali, Bujang B.K. Huat, Lee Sieng KaiStrain gauges are normally used to monitor the shortening or compression of pile during static pile load test. For concrete spun pile, the technique used either by incorporating high temperature-resistant strain gauges into the heat-cured production process of the spun piles or by installing an instrumented steel pipe into the hollow core of the spun piles followed by cement grout … …American Journal of Applied Sciences, Vol. 5, Issue 5 · 31 May 2008 · 7,612 accessesView PDFCite
Research ArticleOpen accessIn the abstractVibrio cholerae O1 Strains of Different Ribotypes have Similar hlyA RFLP Patterns but Different Vacuolating AbilityJorge E. Vidal, Paula Figueroa-Arredondo, Silvia Giono-Cerezo et al.Extensive cytoplasmic vacuolation on Vero and HeLa cells in vitro by the Vibrio cholerae pore forming toxin HlyA, has been previously reported by our group. Vibrio cholerae O1 and non-O1 pathogenic strains show differences in the potential to induce vacuolation, here we study occurring variations on vacuolating cytotoxic ability, related to changes in the nucleotide sequence of the hlyA-orf. A … …American Journal of Infectious Diseases, Vol. 3, Issue 2 · 30 Jun 2007 · 6,984 accessesView PDFCite
Research ArticleOpen accessIn the abstractRemoval and Recovery of Uranium using Microorganisms Isolated from North American Uranium DepositsTakehiko TsurutaSome attempts were made to remove and recover uranium that may be present in nuclear fuel effluents and mine tailings using microorganisms isolated from North American uranium deposits. To establish which microorganisms accumulate the most uranium, hundreds strains of microorganisms were screened. Of these strains of microorganisms tested, extremely high uranium accumulating ability was found in some bacteria isolated from … …American Journal of Environmental Sciences, Vol. 3, Issue 2 · 30 Jun 2007 · 7,285 accessesView PDFCite
Research ArticleOpen accessIn the abstractSuccessful Treatment of Both Mother and Infant in Pregnancy-Associated Group A Streptococcal Toxic Shock SyndromeTakayuki Tanaka, Kousaku Matsubara, Yumiko Umemoto et al.All perinatal cases of group A streptococcal toxic shock syndrome (STSS) previously documented in English literature have been fatal for the mother, the fetus or both. We present the first report of successful treatment of a mother-infant pair with perinatal STSS. A pregnant woman developed STSS at 34 weeks’ gestation 3 h after delivery, following a 25-h history of fever … …American Journal of Infectious Diseases, Vol. 3, Issue 1 · 31 Mar 2007 · 7,089 accessesView PDFCite
Research ArticleOpen accessIn the abstractPharmacological Screening of Arceuthobium oxycedri (Dwarf Mistletoe) of Juniper Forest of PakistanMudassir Asrar Zaidi, Ahsan Huda, Sidney A. CrowThe local population of Balochistan, Pakistan considers the Juniperus excelsa an important medicinal plant. The species is facing a grave threat by a parasitic and epiphytic angiosperm, dwarf mistletoe, Arceuthobium oxycedri (DC) M. Bieb (Viscaceae). The methanolic extract of A. oxycedri was studied for its chemical composition and biologically active compounds for the first time. The extract was assayed for … …OnLine Journal of Biological Sciences, Vol. 6, Issue 2 · 31 Dec 2006 · 7,001 accessesView PDFCite
Research ArticleOpen accessIn the abstractA Backpropagation Neural Network for Computer Network SecurityKhalil ShihabIn this paper, an efficient and scalable technique for computer network security is presented. On one hand, the decryption scheme and the public key creation used in this work are based on a multi-layer neural network that is trained by backpropagation learning algorithm. On the other hand, the encryption scheme and the private key creation process are based on Boolean … …Journal of Computer Science, Vol. 2, Issue 9 · 30 Sep 2006 · 19,535 accessesView PDFCite