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Papers by Joel Couce Martínez
The Proceedings of Manufacturing Systems Division Conference
Mediante la realizacion del presente trabajo consistente en la aplicacion del proceso administrat... more Mediante la realizacion del presente trabajo consistente en la aplicacion del proceso administrativo en diversas actividades deportivas asi como algunos resultados del comportamiento del hombre durante el trabajo deportivo.
contributing expert from Republic of Moldova
Thin-Walled Structures, 2006
Shear wall panels, as the one of the primary lateral load resisting elements, have been extensive... more Shear wall panels, as the one of the primary lateral load resisting elements, have been extensively used in lightweight framing of low-and mid-rise residential construction, particularly in seismic applications. In current practice, lateral strengths of shear wall panels with cold-formed ...
Solid Mechanics and Its Applications
Page 1. DETERMINATION OF THE LATERAL STRENGTH OF SHEAR WALL PANELS WITH COLD-FORMED STEEL FRAMES ... more Page 1. DETERMINATION OF THE LATERAL STRENGTH OF SHEAR WALL PANELS WITH COLD-FORMED STEEL FRAMES Joel Martínez1 and Lei Xu Department of Civil Engineering, University of Waterloo Waterloo, Ont., Canada N2L 3G1 ...
Journal of Chemistry, 2013
The current role of the “Green Chemistry Protocol” in multicomponent reactions is first highlight... more The current role of the “Green Chemistry Protocol” in multicomponent reactions is first highlighted. Then, the green approach to the production of three novel hybrid diindolylmethanes-phenylboronic acids via a 3MCR is discussed, which features the following: solventless conditions, the use of microwave irradiation to activate the reactions, the absence of catalyst, and an efficient atom economy. The products were achieved with moderate yields (41–61%) within a short time frame (5 min) and appropriately characterized by elemental analysis and spectroscopic methods (NMR:1H,13C,11B; MS: EI, CI, FAB+, HRMS). During the FAB+MS determinations, various artifacts that are associated with the boron atom via an interaction with thioglycerol from the matrix were noted in the corresponding FAB+mass spectra; in addition, the accurate mass determination of these adducts unequivocally confirmed the presence of the target molecules. Moreover, the activity of these target molecules was evaluated in ...
The Journal of the Acoustical Society of America, 2010
In the Laboratory of Psychoacoustics of the Zacatenco IPN-ESIME-ICE Zacatenco studies of acoustic... more In the Laboratory of Psychoacoustics of the Zacatenco IPN-ESIME-ICE Zacatenco studies of acoustic answer to an enclosure of the XVI century of Franciscan extraction were carried out. The opposing results revealed that the acoustics presented inside the enclosure is quite capricious since the form was truly deliberate for the projection of the word and the musical sounds of that time.
The Journal of the Acoustical Society of America, 2010
In the laboratory of acoustics in the ESIME, IPN, Mexico, a project for the design of a cochlear ... more In the laboratory of acoustics in the ESIME, IPN, Mexico, a project for the design of a cochlear implant is under development. The most important part of this project is the processing of acoustical signals for the recognition of voice. The main objetive is an individual analysis of perception to every participating person in an appropriate manner when such signals reach the auditory system.
The Journal of the Acoustical Society of America, 2010
The present paper describes the development of a radio-frequency electromagnetic field induced wi... more The present paper describes the development of a radio-frequency electromagnetic field induced with a single pair of coils to transmit-receive a signal through the skin for a biological medium, with the purpose of obtaining data about efficiency and absorption to the transmission. In the future it is intended to energize an electronic circuit with this system, for a cochlear implant.
The American Journal of Tropical Medicine and Hygiene, 2010
![Research paper thumbnail of [Report of Mycobacterium avium-intracellulare associated with kidney mycobacteriosis]](https://attachments.academia-assets.com/117736060/thumbnails/1.jpg)
](Revista cubana de medicina tropical
Consecutive samples of urine from a patient presenting radiological images of multicystic kidneys... more Consecutive samples of urine from a patient presenting radiological images of multicystic kidneys were microbiologically analyzed searching the possible presence of acid-alcohol resistant bacilli. The patient had already undergone complementary tests, which evidenced a kidney failure. As a result, it was isolated a slow-growth non pigmented mycobacterial strain corresponding to group III of Runyon. It was classified as Mycobacterium avium-intracellulare, according to conventional and alternative bacteriological studies, such as the analysis of fractions of mycobacterial mycolic acids by thin layer chromatography technique.
The Proceedings of Manufacturing Systems Division Conference
Mediante la realizacion del presente trabajo consistente en la aplicacion del proceso administrat... more Mediante la realizacion del presente trabajo consistente en la aplicacion del proceso administrativo en diversas actividades deportivas asi como algunos resultados del comportamiento del hombre durante el trabajo deportivo.
contributing expert from Republic of Moldova
Thin-Walled Structures, 2006
Shear wall panels, as the one of the primary lateral load resisting elements, have been extensive... more Shear wall panels, as the one of the primary lateral load resisting elements, have been extensively used in lightweight framing of low-and mid-rise residential construction, particularly in seismic applications. In current practice, lateral strengths of shear wall panels with cold-formed ...
Solid Mechanics and Its Applications
Page 1. DETERMINATION OF THE LATERAL STRENGTH OF SHEAR WALL PANELS WITH COLD-FORMED STEEL FRAMES ... more Page 1. DETERMINATION OF THE LATERAL STRENGTH OF SHEAR WALL PANELS WITH COLD-FORMED STEEL FRAMES Joel Martínez1 and Lei Xu Department of Civil Engineering, University of Waterloo Waterloo, Ont., Canada N2L 3G1 ...
Journal of Chemistry, 2013
The current role of the “Green Chemistry Protocol” in multicomponent reactions is first highlight... more The current role of the “Green Chemistry Protocol” in multicomponent reactions is first highlighted. Then, the green approach to the production of three novel hybrid diindolylmethanes-phenylboronic acids via a 3MCR is discussed, which features the following: solventless conditions, the use of microwave irradiation to activate the reactions, the absence of catalyst, and an efficient atom economy. The products were achieved with moderate yields (41–61%) within a short time frame (5 min) and appropriately characterized by elemental analysis and spectroscopic methods (NMR:1H,13C,11B; MS: EI, CI, FAB+, HRMS). During the FAB+MS determinations, various artifacts that are associated with the boron atom via an interaction with thioglycerol from the matrix were noted in the corresponding FAB+mass spectra; in addition, the accurate mass determination of these adducts unequivocally confirmed the presence of the target molecules. Moreover, the activity of these target molecules was evaluated in ...
The Journal of the Acoustical Society of America, 2010
In the Laboratory of Psychoacoustics of the Zacatenco IPN-ESIME-ICE Zacatenco studies of acoustic... more In the Laboratory of Psychoacoustics of the Zacatenco IPN-ESIME-ICE Zacatenco studies of acoustic answer to an enclosure of the XVI century of Franciscan extraction were carried out. The opposing results revealed that the acoustics presented inside the enclosure is quite capricious since the form was truly deliberate for the projection of the word and the musical sounds of that time.
The Journal of the Acoustical Society of America, 2010
In the laboratory of acoustics in the ESIME, IPN, Mexico, a project for the design of a cochlear ... more In the laboratory of acoustics in the ESIME, IPN, Mexico, a project for the design of a cochlear implant is under development. The most important part of this project is the processing of acoustical signals for the recognition of voice. The main objetive is an individual analysis of perception to every participating person in an appropriate manner when such signals reach the auditory system.
The Journal of the Acoustical Society of America, 2010
The present paper describes the development of a radio-frequency electromagnetic field induced wi... more The present paper describes the development of a radio-frequency electromagnetic field induced with a single pair of coils to transmit-receive a signal through the skin for a biological medium, with the purpose of obtaining data about efficiency and absorption to the transmission. In the future it is intended to energize an electronic circuit with this system, for a cochlear implant.
The American Journal of Tropical Medicine and Hygiene, 2010
Revista cubana de medicina tropical
Consecutive samples of urine from a patient presenting radiological images of multicystic kidneys... more Consecutive samples of urine from a patient presenting radiological images of multicystic kidneys were microbiologically analyzed searching the possible presence of acid-alcohol resistant bacilli. The patient had already undergone complementary tests, which evidenced a kidney failure. As a result, it was isolated a slow-growth non pigmented mycobacterial strain corresponding to group III of Runyon. It was classified as Mycobacterium avium-intracellulare, according to conventional and alternative bacteriological studies, such as the analysis of fractions of mycobacterial mycolic acids by thin layer chromatography technique.