Sign inSubmit
Tips: “quotes” for a phrase · author:Lee · a DOI goes straight to its article

1,402 results for “Pb (lead)”
Set a search alert
Research ArticleOpen accessIn the abstractE-DemocracyKevin Curran, Eric NicholsDemocracy means majority rule. This raises some interesting questions. In a truly democratic society, when a majority of citizens vote for one candidate to govern them, then that person would be the elected governor of those people. Following this line of reasoning, if the majority of people do not vote for a leader, does democracy mean not having a leader? … …Journal of Social Sciences, Vol. 1, Issue 1 · 31 Mar 2005 · 7,068 accessesView PDFCite
Research ArticleOpen accessIn the abstractThe Use of Neural Networks in Real-time Face DetectionKevin Curran, Xuelong Li, Neil M. CaughleyAs continual research is being conducted in the area of computer vision, one of the most practical applications under vigorous development is in the construction of a robust real-time face detection system. Successfully constructing a real-time face detection system not only implies a system capable of analyzing video streams, but also naturally leads onto the solution to the problems of … …Journal of Computer Science, Vol. 1, Issue 1 · 31 Mar 2005 · 7,023 accessesView PDFCite
Research ArticleOpen accessIn the abstractPeriodicity of the HIV/AIDS Epidemic in a Mathematical Model that Incorporates ComplacencyFlugentius Baryarama, Livingstone S. Luboobi, Joseph Y.T. MugishaAn HIV/AIDS model incorporating complacency for the adult population is formulated. Complacency is assumed a function of the number of AIDS cases in a community with an inverse relation. A method to find the equilibrium state of the model is given by proving a stated theorem. An example to illustrate the application of the theorem is also given. Model analysis … …American Journal of Infectious Diseases, Vol. 1, Issue 1 · 31 Mar 2005 · 6,634 accessesView PDFCite
Research ArticleOpen accessIn the abstractDietary supplementation with Cyperus esculentus L (tiger nut) tubers attenuated atherosclerotic lesion in apolipoprotein E knockout mouse associated with inhibition of inflammatory cell responsesMohamed L. Salem, Mohsen Zommara, K. ImaizumiAtherosclerosis is a pathological process, where recruitment of mononuclear cells results in the growth of fibro-fatty plaques. Apolipoprotein E (ApoE) is a legend for the uptake of lipoproteins, and deficiency of ApoE leads to the accumulation of low-density lipoprotein. Utilizing ApoE-/- mouse, which spontaneously develop atherosclerosis on low-fat chow diets, the present study showed that feeding these mice on a … …American Journal of Immunology, Vol. 1, Issue 1 · 31 Mar 2005 · 10,479 accessesView PDFCite
Research ArticleOpen accessIn the abstractExogenous Re-infection by Multiple Exposures to Mycobacterium tuberculosis Contributes to Subsequent Development of Active TuberculosisDiane J. Ordway, Miguel Viveiros, Fernando A. Ventura et al.The majority of tuberculosis (TB) exists in the world’s poorest countries, where costly biosafety level three facilities for containment of infectious TB patients and diagnostic facilities are not affordable. Health care workers (HCWs), in countries with high burdens of tuberculosis (TB) are at risk of nosocomially acquired TB, as there are increased numbers of cases of TB on open hospital … …American Journal of Immunology, Vol. 1, Issue 1 · 31 Mar 2005 · 6,971 accessesView PDFCite
Research ArticleOpen accessIn the abstractEssential Role of PKCδ in Apoptosis Induction of Mouse ThymocytesC. Lutz-Nicoladoni, T. Letschka, M. Leitges et al.The family of protein kinases C (PKCs) has been implicated in signal transmission leading to apoptosis induction and/or survival. These effects are cell type and tissue dependent. Numerous studies employing phorbol ester, a pleiotropic PKC activator, strongly implicated PKC in apoptosis induction of thymocytes. However, phorbol esters activate both, the conventional PKCs (PKCα, β, γ) as well as the novel … …American Journal of Immunology, Vol. 1, Issue 1 · 31 Mar 2005 · 7,137 accessesView PDFCite
Research ArticleOpen accessIn the abstractOn Fractional Hold Devices Versus Positive Realness of Discrete Transfer FunctionsM. de la Sen, A. Bilbao- GuillernaThe appropriate use of fractional order holds (β-FROH) of correcting gains βε[-1,1] as an alternative to the classical zero and first order -holds (ZOH, FOH) is discussed related to the positive realness of the associate discrete transfer functions obtained from a given continuous transfer function. It is proved that the minimum direct input-output gain (i.e. the quotient of the leading … …American Journal of Applied Sciences, Vol. 2, Issue 3 · 31 Mar 2005 · 7,194 accessesView PDFCite
Research ArticleOpen accessIn the abstractConsidering Environmental Externalities in Technology Selection: the Case of Urban Buses for AthensDimitrios A. GeorgakellosThe present study proposes a procedure for considering the environmental externalities in technology selection decision-making, based on the outcome of Life Cycle Assessments. Currently, even if there are several methods available for technology selection and purchasing, almost all of them seem to ignore the external cost associated with the candidates. The main features of the proposed model are its simplicity … …American Journal of Applied Sciences, Vol. 2, Issue 1 · 31 Jan 2005 · 7,005 accessesView PDFCite
Research ArticleOpen accessIn the abstractMolecular Characterization of Banana (AA) Diploids with Contrasting Levels of Black and Yellow Sigatoka ResistanceClaudia Fortes Ferreira, Sebastiao Oliveira Silva, Nivia Paula Damasceno Sobrinho et al.Most banana cultivars are susceptible to many diseases, whereas Sigatoka leads to greatest yield losses. One of the strategies to overcome this disease is thorough banana genetic breeding which consists in the obtainment of improved (AA) diploids which are then crossed with triploids obtaining (AAAB) tetraploid disease resistant bananas also presenting other important agronomic characteristics. The prior knowledge of the … …American Journal of Applied Sciences, Vol. 1, Issue 4 · 31 Dec 2004 · 7,660 accessesView PDFCite
Research ArticleOpen accessIn the abstractHardware Design of Wireless Physical Token Ring System for Mobile and Cell CommunicationNidal F. Shilbayeh, Mahmoud Z. IskandaraniA wireless network system based on an infrared and Laser scanning Physical Token Ring architecture (W-PTRS) was designed, built and tested successfully. The network provides a different way of utilizing the concept of a token ring network but with a higher efficiency related to the speed of data transfer and the ability to parallel process client-server requests leading to a … …American Journal of Applied Sciences, Vol. 1, Issue 3 · 30 Sep 2004 · 6,792 accessesView PDFCite