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20 articles for “Marcos”
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Research ArticleOpen accessIn the author namesCyclodextrin Glucanotransferase Activity of Microbial Strains Isolated from Yam-Cultivation Soils in Northwestern BeninCyrille Alode Vodounon, Ténor Dias-Mendel Allode et al.β-Cyclodextrin, an industrially important oligosaccharide, is produced by microbial enzymes such as cyclodextrin glucanotransferase (CGTase). This study investigated ways to optimize the enzymatic activity of CGTase from Bacillus cereus, Bacillus pumilus, Bacillus brevis, and Bacillus subtilis strains isolated from soils in north-western Benin. Cyclization activity of CGTase and the influence of pH, temperature, and metal ions were assessed using conventional … …American Journal of Biochemistry and Biotechnology, Vol. 22, Issue 3 · 21 Sep 2026 · 674 accessesView PDFCite
Research ArticleOpen accessIn the author namesDetection of Methicillin-Resistant Staphylococci (MRS) and Salmonella spp. in Consumer Egg SamplesAna Claudia Lemes Pavan, Rafaella da Silva, Vanessa Kelly Capoia Vignoto et al.Despite the excellent nutritional value, the egg can be an important vehicle for bacterial infections carried by food, among them, multiresistant Staphylococci and salmonellosis. The objective of this work was to detect the presence of Methicillin-Resistant Staphylococcus spp. (MRS) and Salmonella spp. Forty dozen eggs were obtained from three free-trade fairs in the Umuarama-PR; every dozen eggs comprised a sample. … …American Journal of Animal and Veterinary Sciences, Vol. 15, Issue 3 · 21 Aug 2020 · 6,532 accessesView PDFCite
Research ArticleOpen accessIn the author namesEndoscopic Changes of Nasal Mucosa in Patients with LeprosyCarla Andrea Avelar Pires, Eline Pinheiro Weba Costa, Marcus Vinicius Duarte Costa et al.Leprosy is a chronic granulomatous disease, affecting the skin and Schwann cells of peripheral nerves. In most leprosy cases, the nasal mucosa is affected. We aimed to describe the clinical changes in nasal mucosa using nasal endoscopy, in patients with leprosy attending a dermatology service in an endemic region and compare this changes with those founds in non-leprosy patients nasal … …American Journal of Infectious Diseases, Vol. 15, Issue 2 · 3 May 2019 · 7,274 accessesView PDFCite
Research ArticleOpen accessIn the author namesOptical and Structure Analysis of ZnO:Al FilmNeilo Marcos Trindade, Michel Chaves, José Roberto Ribeiro Bortoleto et al.ZnO and ZnO:Al are wide-bandgap semiconductors which have many applications, mainly as transparent conducting films. Thin films of these compounds were deposited onto glass and silicon substrates by RF magnetron sputtering for the investigation of structural and optical characteristics. The XRD results show that the films present wurtzite structure. The formation of a polycrystalline film having a preferential crystallographic orientation … …American Journal of Engineering and Applied Sciences, Vol. 10, Issue 4 · 5 Oct 2017 · 7,862 accessesView PDFCite
Research ArticleOpen accessIn the author namesA Fast-and-Fair Collision Resolution Protocol Tailored for Ad Hoc Wireless NetworksMarcos F. Caetano, Lucas M. Guimaraes, Jacir L. BordimWireless technologies have permeated a significant number of devices over the years. On the other hand, Medium Access Control (MAC) protocols strive to deal with an increasing number of contending nodes on crowded frequency bands. This work presents an efficient medium access control resolution protocol. The proposed protocol, termed Collision Resolution Protocol (CRP), uses pulse/tone signaling that works in both … …Journal of Computer Science, Vol. 12, Issue 8 · 1 Nov 2016 · 7,145 accessesView PDFCite
Research ArticleOpen accessIn the author namesScorpius: sFlow Network Anomaly SimulatorMarcos V.O. de Assis, Mario Lemes Proença Jr.Due to the increasing amount of data traveling computer networks every day, efficient management of this information is required to ensure the quality of the services provided by them. Development of new network management tools and mechanisms is a widely approached area due to its importance, not only to the current technology, but also to next generation network standards and … …Journal of Computer Science, Vol. 11, Issue 4 · 23 Jul 2015 · 7,534 accessesView PDFCite
EditorialOpen accessIn the author namesAMYOTROPHIC LATERAL SCLEROSIS: HOW TO UNDERSTAND SUCH DIVERSE AND SO ENTANGLED PHYSIOPATHOLOGY?Carlos Henrique Melo Reis, Marco Orsini, Marco Antônio Araujo Leite et al.When in 1865, JeanMartin Charcotreported patients with progressive muscular atrophysuperimposedwith spasticity of inexorable evolution as result of combinedlesions of the anterior horn and lateral column of the spinal cord, hecertainly inaugurated an attempt on the comprehension of one of the mostcomplexes neurological clinical conditions, which until today persists withimmense voids on their comprehension, regardless of the enormous advancesachieved. Astime went … …Current Research in Medicine, Vol. 5, Issue 2 · 16 Feb 2015 · 7,151 accessesView PDFCite
Research ArticleOpen accessIn the author namesPROBABLE CREUTZFELDT JAKOB DISEASE: CASE REPORTYanes Brum Bello, Alexandre Cossenza Pettezzoni De Almeida, Daniela Mendonca Sueth et al.Prion diseases are associated with the accumulation of an abnormal isoformof cellular prion protein (PrPSc), which is the principal constituent of prions. Prions replicate in lymphoreticular tissues before neuroinvasion, suggesting that lymphoreticular biopsy samples may allow early diagnosis by detection of PrPSc. Creutzfeldt-Jakob Disease (CJD) is the most frequent prion disease in humans. Clinical diagnosis of sporadic (CJD) is based … …Current Research in Medicine, Vol. 5, Issue 1 · 14 Mar 2014 · 8,135 accessesView PDFCite
Research ArticleOpen accessIn the author namesCryptococcal Meningitis in Immunocompetent Patient-Case ReportYanes Brum Bello, Hanna Guapyassu Machado, Juliana Freitas Silveira et al.Cryptococcal Meningitis (CM) is a rare infection in immunocompetent patients. A kind of central nervous system infection caused by encapsulated yeast-like fungus Cryptococcus neoformans. A 59-year-old man presented to the Neurology Department of Nova Iguacu General Hospital, complaining has felt &#34muddled&#34 recently and feeling diaphragmatic spasm without any apparent cause. In addition, at neurological examination, the patient was slightly confused … …Current Research in Medicine, Vol. 4, Issue 1 · 2 May 2013 · 8,003 accessesView PDFCite
Research ArticleOpen accessIn the author namesUse of Cooled Bull Semen as a Strategy to Increase the Prenancy Rate in Fixed-Time Artificial Insemination Prgrams-Case ReportAndre Maciel Crespilho, Frederico Ozanam Papa, Marcos de Paula Santos, Manoel Francisco de Sa FilhoSemen cryopreservation is still considered suboptimal due to lower fertility when compared to fresh semen. The reasons for the loss of fertility are various and related to irreversible damage caused to the cells during the freeze-thaw process. An alternative to conventional cryopreservation represents the use of chilled bull semen, preventing the damage associated with freezing, thereby guaranteeing greater sperm viability. … …American Journal of Animal and Veterinary Sciences, Vol. 7, Issue 4 · 2 Feb 2013 · 8,684 accessesView PDFCite