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Comparison between Classical and Intelligent Identification Systems for Classification of Gait Events

Journal of Control Science and Engineering 2015年第1期3卷 21-34页

作者： carlos Galvan-Duque Ricardo Zavala-yoe gerardo Rodriguez-Reyes Felipe Mendoza-Cruz MichelinAlvarez-Camacho Ricardo Ramirez-Mendoza Orthotics and Prosthetics Laboratory lnstituto Nacional de Rehabilitacion Mexico City Mexico School of Engineering and Architecture Graduate Studies Tecnologico de Monterrey Mexico City Campus Mexico

Gait event detection is important for diagnosis and evaluation. This is a challenging endeavor due to subjectivity, high amount of data, among other problems. ANFIS （Artificial Neural Fuzzy Inference Systems）, ARX （Autoregressive Models with Exogenous Variables）, OE （Output Error models）, NARX （Nonlinear Autoregressive Models with Exogenous Variables） and models based on NN （neural networks） were developed in order to detect gait events without the problems mentioned. The objective was to compare developed models＇ performance and determinate the most suitable model for gait events detection. Knee joint angle, heel foot switch and toe foot switch during normal walking in a treadmill were collected from a healthy volunteer. Gait events were classified by three experts in human motion. Experts＇ mean classification was obtained and all models were trained and tested with the collected data and experts＇ mean classification. Fit percentage was obtained to evaluate models performance. Fit percentages were： ANFIS： 79.49%, ARX： 68.8%, OE： 71.39%, NARX： 88.59%, NNARX： 67.66%, NNRARX： 68.25% and NNARMAX： 54.71%. NARX had the best performance for gait events classification. For ARX and OE, previous filtering is needed. NN＇s models showed the best performance for high frequency components, ANFIS and NARX were able to integrate criteria from three experts for gait analysis. NARX and ANFIS are suitable for gait event identification. Test with additional subjects is needed.

关键词： Gait analysis biomechanics system identification.

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On Boolean Lattices of Module Classes

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Algebra Colloquium 2018年第2期25卷 285-294页

作者： Alejandro Alvarado-garcia Cesar Cejudo-Castilla Hugo Alberto Rincon-Mejia Ivan Fernando Vilchis-Montalvo Manuel gerardo Zorrilla-Noriega Facultad de Ciencias Universidad Nacional Autonoma de Mexico Circuito Exterior C.U. C.P. 04510 Ciudad de Mexico Mexico Facultad de Ciencias Fisico Matemdticas Benemerita Universidad Autonoma de Puebla Av. San Claudio y 18 Sur Col. San Manuel Ciudad Universitaria C.P. 72570 Puebla Mexico Facultad de Ciencias Universidad Nacional Autonoma de Mexico Circuito Exterior C.U. C.P. 04510 Ciudad de Mdxico Mdxico Facultad de Ciencias Ffsico Matematicas Benemerita Universidad Autonoma de Puebla Av. San Claudio y 18 Sur Coi. San Manuel Ciudad Universitaria C.P. 72570 Puebla Mexico

Some properties of and relations between several （big） lattices of module classes are used in this paper to obtain information about the ring over which modules are taken. The authors reach characterizations of triv... 详细信息

关键词： torsion theories hereditary pretorsion classes natural classes conaturalclasses boolean lattice

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Frontal penetrating arrow injury:A case report

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World Journal of Clinical Cases 2023年第17期11卷 4117-4122页

作者： Alejandra Rodríguez-Ramos carlos A Zapata-Castilleja José L Treviño-González gerardo C Palacios-Saucedo Ramón G Sánchez-Cortés Leonor G Hinojosa-Amaya Adriana Nieto-Sanjuanero Manuel de la O-Cavazos Department of Pediatrics Hospital Universitario“Dr.JoséEleuterio González”Universidad Autónoma de Nuevo LeónMonterrey 64460Nuevo LeónMexico

BACKGROUND Penetrating arrow injuries of the head and neck are exceedingly rare in pediatric *** pathology has high morbidity and mortality because of the presence of vital organs,the airway,and large ***,the treatment and removal of an arrow is a challenge that requires multidisciplinary *** SUMMARY A 13-year-old boy was brought to the emergency room after an arrow injury to the frontal *** arrowhead was lodged in the *** studies showed a lesion of the paranasal sinuses without compromising vital *** arrow was successfully removed by retrograde nasoendoscopy without complications,and the patient was *** Although rare,maxillofacial arrow injuries have high morbidity and mortality and require multidisciplinary management to preserve function and aesthetics.

关键词： Arrow Penetrating trauma Maxillofacial injuries Pediatrics Pediatric emergency medicine Case report

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Surgical treatment of locally advanced anal cancer after male-to-female sex reassignment surgery

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World Journal of Gastroenterology 2009年第23期15卷 2918-2919页

作者： Marco Caricato Fabio Ausania Giovanni Francesco Marangi Ilaria Cipollone gerardo Flammia Paolo Persichetti Lucio Trodella Roberto Coppola Department of General Surgery Campus Bio Medico University of Rome Rome 00139 Italy Plastic and Reconstructive Surgery Campus Bio Medico University of Rome Rome 00139 Italy Radiation Oncology Campus Bio Medico University of Rome Rome 00139 Italy

We present a case of a transsexual patient who underwent a partial pelvectomy and genital reconstruction for anal cancer after chemoradiation. This is the first case in literature reporting on the occurrence of anal cancer after male-to-female sex reassignment surgery. We describe the surgical approach presenting our technique to avoid postoperative complications and preserve the sexual reassignment.

关键词： Sex reassignment Pelvic surgery Analcancer

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Non-Specific Factors Involved in the Treatment： Its Influence on Treatment Adherence

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Journal of Pharmacy and Pharmacology 2017年第6期5卷 340-348页

作者： gerardo A. Fridman Corrientes Pharmacy Santa Fe 1294 City of Corrientes 3400 Argentina

Introduction： The effectiveness of treatment depends on the efficacy of the therapy and the level of compliance of the patient. NF （non-specific factors） involved in treatment are all those effects that do not depend on the pharmacological properties of the drug. Materials and Methods： The job lasted a year. The sample consisted of patients with mental health disorders and was divided into two groups. Treatment compliance was measured with the Morisky-Green Test. Results were compared using the chi square test and relative risk. Results and Discussion： Group A had 23 patients ending 91.3% of them and group B of 22 patients, ending the 77.27%. At the beginning of the study, we found in the group A 0.86 NF/patients while in the group B 0.82 NF/patient. At the end of the study there was a 54.65% decrease in group A while in group B the proportion remained. At the beginning of the study both groups had approximately 40% of compliant patients. Data that remained in the control group rose to 80.95% in group A at the end of the study. Conclusions： The work demonstrates the negative influence of these factors on adherence to treatment.

关键词： Adhesion to treatment nonspecific factors influencing treatment health professional patient family environment.

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Tests （Ch2） As Primary Screening Test In One Of The Hospitals Of The Hospitals Of The Mexican Departament Of Health （Secretaria De Salud,Mexico）.

Tests （Ch2） As Primary Screening Test In One Of The Hospit...

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24th International Papillomavirus Conference and Clinical Workshop

作者： Maria Esther Dragustinovis Ruiz carlos Vargas Carriche Laura Tirado Gomez gerardo Lara Figueroa Genaro Valerio Tello Genaro Valerio Tello Genaro Valerio Tello Genaro Valerio Tello

＜正＞Background Among Latin American countries such as Mexico and the rest of the world,there is a great discrepancy in the screening Methods used on the general population for prevention cervical cancer;there is a 30 to 50% error margin in the diagnostic Methods used today（Cytology 50%-70%,Colposcopy 40%-60%）.The implementation of new techniques and Methods based in molecular biology（HC2）that comply with the cultural,social,and economic level of each country to manage

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Influence of flooding and vegetation on carbon,nitrogen,and phosphorus dynamics in the pore water of a Spartina alterniflora salt marsh

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Journal of Environmental Sciences 2011年第2期23卷 212-221页

作者： Vanesa L.Negrin Carla V.Spetter Raúl O.Asteasuain gerardo M.E.Perillo Jorge E.Marcovecchio Argentine Institute of Oceanography (IADO CONICETCCT-Bahía Blanca)Camino La Carrindanga km 75Building E-1 CC 804Bahía Blanca 8000Argentina Department of Chemistry Southern National Institute of Chemistry (INQUISUR)Southern National University (UNS)Av Alem 1253Bahía Blanca 8000Argentina Department of Geology Southern National University (UNS)San Juan 670Bahía Blanca 8000Argentina National Technological University Regional Faculty of Bahía Blanca (UTN-FRBB)11 de Abril 461Bahía Blanca 8000Argentina University of the Fraternity of Associations Santo Toms de Aquino (FASTA) Gascón 3145Mar del Plata 7600Argentina

Four sites were selected in a salt marsh in the Bahia Blanca Estuary （Argentina）：（1） low marsh （flooded by the tide twice daily） vegetated by S. alterniflora; （2） non-vegetated low marsh; （3） high marsh （flooded only in spring tides） vegetated by S. alterniflora; （4） non-vegetated high marsh. The pH and Eh were measured in sediments, while dissolved nutrients （ammonium, nitrate, nitrite and phosphate） and particulate organic matter （POM） were determined in pore water, pH （6.2-8.7） was only affected by vegetation in low areas. Eh （from -300 to 250 mV） was lower at low sites than at high ones; in the latter, the values were higher in the non-vegetated sediments. The POM concentration was greater in the high marsh than in the low marsh, with no effect of vegetation. Ammonium was the most abundant nitrogen nutrient species in pore water, except in the non-vegetated high marsh where nitrate concentration was higher. All nitrogen nutrients were affected by both flooding and vegetation. Phosphate was always present in pore water at all sites throughout the year and its concentration varied within narrow limits, with no effect of flooding and greater values always at non-vegetated sites. Our results showed that the variability of the pore water composition within the marsh is greater than the temporal variation, meaning that both tidal flooding and vegetation are important in the dynamics of nutrients and organic matter in the sediment pore water.

关键词： organic matter nutrients flooding Spartina alterniflora

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Rayleigh waves from correlation of seismic noise in Great Island of Tierra del Fuego,Argentina:Constraints on upper crustal structure

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Geodesy and Geodynamics 2018年第1期9卷 2-12页

作者： Carolina Buffoni Martin Schimmel Nora Cristina Sabbione María Laura Rosa gerardo Connon Faculty of Astronomical and Geophysical Sciences National University of La PlataPaseo Del Bosque Sin B1900F WAArgentina Institute of Earth SciencesJaume Almera-CSIC Lluis SoléSabarfs S/n Barcelona E-08028Spain Astronomical Station of Rio Grande(EARG) Ruta C y Acceso Aeropuerto9420EARRfo GrandeArgentina National Scientific and Technical Research Council(CONICET) Av.Rivadavia 1917 C1033AAJAutonomous City of Buenos AiresArgentina

In this study, the ambient seismic noise cross-correlation technique is applied to estimate the upper structure of the crust beneath Great Island of Tierra del Fuego（TdF）, Argentina, by the analysis of shortperiod Rayleigh wave group velocities. The island, situated in the southernmost South America, is a key area of investigation among the interaction between the South American and Scotia plates and is considered as a very seismically active one. Through cross-correlating the vertical components of ambient seismic noise registered at four broadband stations in TdF, we were able to extract Rayleigh waves which were used to estimate group velocities in the period band of 2.5-16 s using a timefrequency analysis. Although ambient noise sources are distributed in homogeneously, robust empirical Green＇s functions could be recovered from the cross-correlation of 12 months of ambient noise, The observed group velocities were inverted considering a non-linear iterative damped least-squares inversion procedure and several 1-D shear wave velocity models of the upper crust were *** to the inversion results, the S-wave velocity ranges between 1.75 and 3,7 km/s in the first10 km of crust, depending on the pair of stations considered. These results are in agreement to the major known surface and sub-surface geological and tectonic features known in the area. This study represents the first ambient seismic noise analysis in TdF in order to constraint the upper crust beneath this *** can also be considered as a successful feasibility study for future analyses with a denser station deployment for a more detailed imaging of structure.

关键词： Ambient seismic noise cross-correlation Rayleigh wave dispersion Upper crust Tierra del Fuego

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Rethinking the Barcelona clinic liver cancer guidelines:Intermediate stage and Child-Pugh B patients are suitable for surgery?

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World Journal of Gastroenterology 2021年第21期27卷 2784-2794页

作者： Fabrizio Romano Marco Chiarelli Mattia Garancini Mauro Scotti Mauro Zago gerardo Cioffi Matilde De Simone Ugo Cioffi Department of Surgery School of Medicine and SurgeryUniversity of Milano-BicoccaMonza 20900Italy Emergency and Robotic Surgery A.Manzoni HospitalASST LeccoLecco 23900Italy Department of General Surgery San Gerardo HospitalMonza 20900Italy Department of Sciences and Technologies Universitàdegli Studi del Sannio di BeneventoBenevento 82100Italy Department of Surgery University of MilanMilano 20122Italy

According to Barcelona Clinic Liver Cancer recommendations,intermediate stage hepatocellular carcinomas(stage B)are excluded from liver resection and are referred to palliative ***,Child-Pugh B patients are not usually candidates for liver ***,many hepatobiliary centers in the world manage patients with intermediate stage hepatocellular carcinoma or Child-Pugh B cirrhosis with liver resection,maintaining that hepatic resection is not contraindicated in selected patients with non–early-stage hepatocellular carcinoma and without normal liver *** studies demonstrate that resection provides the best survival benefit for selected patients in very early/early and even in intermediate stages of Barcelona Clinic Liver Cancer classification,and this treatment gives good results in the setting of multinodular,large tumors in patients with portal hypertension and/or Child-Pugh B *** this review we explore this controversial topic,and we show through the literature analysis how liver resection may improve the short-and long-term survival rate of carefully selected Barcelona Clinic Liver Cancer B and Child-Pugh B hepatocellular carcinoma ***,other large clinical studies are needed to clarify which patients with intermediate stage hepatocellular carcinoma are most likely to benefit from liver resection.

关键词： Liver surgery Hepatocellular carcinoma Barcelona liver clinic cancer Child B Intermediate stage

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Novel contributions of multimodality imaging in hypertension:A narrative review

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World Journal of Hypertension 2015年第2期5卷 28-40页

作者： Erick Alexanderson-Rosas Enrique Berríos-Bárcenas Aloha Meave Juan carlos de la Fuente-Mancera Mariano Oropeza-Aguilar Alejandro Barrero-Mier Andrea de Guadalupe Monroy-González Raul Cruz-Mendoza gerardo Yoshiaki Guinto-Nishimura Nuclear Cardiology Department National Institute of Cardiology Ignacio ChávezMexico City 14080Mexico Cardiac Magnetic Resonance Department National Institute of Cardiology Ignacio ChávezMexico City 14080Mexico

Hypertension is currently one of the most prevalent il nesses worldwide,and is the second most common cause of heart failure,only behind ischemic *** development of novel multimodality imaging techniques in recent years has broadened the diagnostic methods,risk stratification and monitoring of treatment of cardiovascular diseases available for *** magnetic resonance(CMR) has a great capacity to evaluate cardiac dimensions and ventricular function,is extremely useful in ruling-out ischemic cardiomyopathy,the evaluation of the vascular system,in making the differential diagnosis for resistant hypertension and risk stratification for hypertensive cardiomyopathy and constitutes today,the method of choice to evaluate left ventricular systolic *** tomography(CT) is the method of choice for the evaluation of vascular anatomy,including coronary arteries,and is also able to provide both functional and structural ***,nuclear cardiology studies have been traditionally used to evaluate myocardial ischemia,along with offering the capacity to evaluate ventricular,endothelial and cardiac innervation function;information that is key in directing the treatment of the *** this narrative review,the most recent contributions of multimodality imaging to the patient with hypertension(CMR,CT and nuclear cardiology) will be reviewed.

关键词： Cardiac imaging techniques Multimodality imaging Magnetic resonance imaging Multidetector computed tomography Cardiac-gated single photon emission computed tomography Positron emission tomography Hypertension

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