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118 results for “ACO”
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Research ArticleOpen accessIn the author namesOne Time Password (OTP) Solution for Two Factor Authentication: A Practical Case StudyOscar Efrén Acosta Mayorga, Sang Guun YooCurrently, static passwords are no longer secure, they expose accounts and data, more advanced and sophisticated approaches are required to guarantee user authentication and operations in digital systems. In this context, this study investigates how in a practical application, addressing security challenges in user authentication using One Time Passwords (OTP) can strengthen two-Factor Authentication (2FA), the use of a sec … …Journal of Computer Science, Vol. 21, Issue 5 · 26 Apr 2025 · 8,452 accessesView PDFCite
Research ArticleOpen accessIn the author namesDetection of Rust Emergence in Coffee Plantations using Data Mining: A Systematic ReviewLenin Quiñones Huatangari, Candy Lisbeth Ocaña Zúñiga, Annick Estefany Huaccha Castillo et al.Hemileia vastatrix is a fungus that causes coffee rust disease and, depending on the level of severity, reduces the photosynthetic capacity of the plant and of new shoots, leading to low coffee yields and even death; its symptoms are visible on the leaf. Systems based on computer algorithms have been developed to predict diseases and pests in coffee. The objective … …OnLine Journal of Biological Sciences, Vol. 22, Issue 2 · 31 Mar 2022 · 8,022 accessesView PDFCite
Research ArticleOpen accessIn the author namesPREVALENCE OF AUTOANTIBODIES REVEALS A PREDOMINANT SMA AND ANCA-PR3/MPO PATTERN IN HIV INFECTION AND SMA IN HAV-INFECTED CHILDRENLuz M. Navarta, Carlos A. Espul, Nelson Acosta-RiveroHepatitis A Virus (HAV) and Human Immunodeficiency Virus (HIV) have been associated with development of autoantibodies and autoimmune manifestations in children. Autoimmune Hepatitis (AIH) is particularly aggressive in children/adolescents with a more severe outcome. Thus, studying the mechanisms of virus-related autoimmune disorders in children is a relevant topic of research. We aimed to study the prevalence of autoantibodies in plasma … …American Journal of Immunology, Vol. 10, Issue 3 · 18 Sep 2014 · 7,038 accessesView PDFCite
Research ArticleOpen accessIn the author namesDURABILITY OF MIXED MORTAR LINING CONTAINING DREGS-GRITSB. P. Zanella, E. B. Sá, N. O. Acorinti et al.The improper disposal of industrial waste and exploitation of natural resources has resulted in the scarcity of river sand and environmental degradation, such as river erosions and pollution. This study aimed to assess the durability of mixed mortar lining walls and ceilings, containing 0 (default), 10 and 20% of dregs-grits compounds-waste of the pulp industry-in substitution with river sand. This … …American Journal of Environmental Sciences, Vol. 10, Issue 1 · 26 Feb 2014 · 7,594 accessesView PDFCite
Research ArticleOpen accessIn the author namesClinical and Sociodemographic Risk Factors for Tuberculosis in Human Immunodeficiency Virus Infected PatientsPaz-Ayar Nibardo, Jose Antonio Mata-Marin, Jesus Gaytan-Martinez et al.To identify clinical and sociodemographic factors associated with the risk of tuberculosis in HIV-infected patients. A case-control study in a cohort of HIV-infected patients. Cases: patients coinfected with HIV and pulmonary or extrapulmonary tuberculosis. Controls: no clinical tuberculosis and PPD negative, matched for age and sex. Primary data were obtained from medical records and personal interviews. We identified 47 cases … …American Journal of Infectious Diseases, Vol. 9, Issue 4 · 30 Nov 2013 · 8,236 accessesView PDFCite
Research ArticleOpen accessIn the author namesHexavalent Chromium Removal by Litchi chinensis Sonn PeelIsmael Acosta-Rodriguez, Rigoberto Martinez-Perez, Juan F. Cardenas-Gonzalez et al.Problem statement: We studied the Chromium (VI) removal capacity in aqueous solution by the litchi peel. Approach: We use the diphenylcarbazide method to evaluate the metal concentration. Results: The highest biosorption of the metal (50 mg L-1) occurs within 6 min, at pH of 1 and 28°C. According to temperature, the highest removal was observed at 40 and 50°C, in … …American Journal of Biochemistry and Biotechnology, Vol. 8, Issue 1 · 1 Mar 2012 · 8,223 accessesView PDFCite
Research ArticleOpen accessIn the author namesUltrastructural Evidences of Hepatitis B Infection in Human Liver Biopsies Disclose Complex Assembly and Morphogenesis Pathways for Hepatitis B VirusViviana Falcon, Ivon Menéndez, Nelson Acosta-Rivero et al.Despite of recent advances on acknowledge of hepatitis B virus (HBV) structure and biology, little is known about the morphogenesis and release of virions. In this study, the ultrastructural analysis of HBV components in liver biopsies from chronically HBV-infected patients disclosed complex assembly and morphogenesis pathways for HBV. HBV core (HBcAg) and surface (HBsAg) antigens were specifically identified in all … …American Journal of Infectious Diseases, Vol. 4, Issue 2 · 30 Jun 2008 · 7,091 accessesView PDFCite
Research ArticleOpen accessIn the author namesBiochemical Effects of Recombinant Porcine Somatotropin on Pig Fetal Growth and Metabolism: A ReviewD. Villanueva-García, S. A. Olmos-Hernández, D. Mota-Rojas et al.Prenatal development is mainly dependent on a close interrelation between nutritional supply use and regulation by hormones and growth factors. Mechanisms during early embryonic development are sensitive to manipulation through selected management strategies of the sow and modifications of this strategy may serve as a model for the examination of molecular and cellular events controlling early embryonic growth. The administration … …American Journal of Biochemistry and Biotechnology, Vol. 2, Issue 4 · 31 Dec 2006 · 6,620 accessesView PDFCite
Research ArticleOpen accessIn the author namesUltrastructural and Immunological Characterization of Hepatitis C Core Protein-DNA Plasmid ComplexesNelson Acosta-Rivero, Yaraima Aguilera, Viviana Falcon et al.Recently, it has been shown that a truncated HCV core (HCcAg) variant, covering the first 120 aa (HCcAg.120), interacts with plasmid DNA vaccine (pIDKE2), encoding the HCV structural proteins (HCcAg, E1 and E2). In the present work, HCcAg.120-pIDKE2 complexes, forming heterogeneous packaged structures, were visualized using a negative stain/rotary shadow technique. Interestingly, 72 hours after intramuscular injection of HCcAg.120-pIDKE2 complexes … …American Journal of Immunology, Vol. 2, Issue 3 · 30 Sep 2006 · 6,743 accessesView PDFCite
Research ArticleOpen accessIn the author namesInteraction of a C-terminal Truncated Hepatitis C Virus Core Protein with Plasmid DNA Vaccine Leads to in vitro Assembly of Heterogeneous Virus-like ParticlesNelson Acosta-Rivero, Joanna Poutou, Alexis Mussachio et al.Recently, it has been shown that HCV core proteins (HCcAg) with C-terminal deletions assemble in vitro into virus-like particles (VLPs) in the presence of structured RNA molecules. Results presented in this work showed that a truncated HCcAg variant covering the first 120 aa (HCcAg.120) with a 32 aa N-terminal fusion peptide (6xHistag-XpressTMepitope) interacts with plasmid DNA vaccine. Interestingly, the buoyant … …American Journal of Infectious Diseases, Vol. 1, Issue 1 · 31 Mar 2005 · 6,754 accessesView PDFCite