DANIEL FERNANDEZ - Academia.edu (original) (raw)
Papers by DANIEL FERNANDEZ
Journal of Orthopaedic Surgery and Research, 2021
Journal of Orthopaedics and Traumatology, 2021
Background Proximal humerus fractures are one of the main osteoporotic fractures. Choosing betwee... more Background Proximal humerus fractures are one of the main osteoporotic fractures. Choosing between conservative or surgical treatment is a controversial topic in the literature, as is the functional impact. The main aim of our study was to analyse whether patient comorbidities should influence the final therapeutic decision for these fractures. Material and methods We collected data from 638 patients with proximal humerus fractures. The main variable collected was exitus. We also collected the following data: age, gender, type of fracture, laterality, type of treatment, production mechanism, comorbidities and the Charlson comorbidity index (CCI) for each patient. The therapeutic indication used the criteria established by the Upper Limb Unit in our centre. We performed chi-square tests, Fischer’s exact tests and Student’s t-tests to compare the variables. We used the Kaplan–Meier method to analyse both the overall and disease-specific survival rates. We employed the Cox regression m...
Enciclopedia Del Espanol En Los Estados Unidos Anuario Del Instituto Cervantes 2008 2008 Isbn 978 84 88252 90 6 Pags 607 616, 2008
La Sociologia Y Los Nuevos Retos a Socioloxia E Os Novos Retos Iv Congreso Astur Galaico De Socioloxia a Coruna 23 24 De Marzo De 2007 2007 Isbn 978 84 9749 245 4, 2007
Enciclopedia Del Espanol En Los Estados Unidos Anuario Del Instituto Cervantes 2008 2008 Isbn 978 84 88252 90 6 Pags 653 656, 2008
Boletin Cf S, Jun 11, 2014
En este trabajo presentamos un rediseño del método de evaluación, para dar un marco de evaluación... more En este trabajo presentamos un rediseño del método de evaluación, para dar un marco de evaluación al curso de Estadística en carreras de Ingeniería, revalorizando algunos instrumentos de evaluación, basados en la evaluación continua y una permanente interacción teoría-práctica, además de la incorporación de los proyectos de análisis de datos como técnica didáctica. Con este marco se aspira a que la educación se vuelque sobre el contexto, creando un escenario para la puesta en obra del aprendizaje de la Estadística a partir de un variado menú de actividades, abriendo puertas para enriquecer el aprendizaje a través de la búsqueda de información, la observación, las entrevistas, la interacción, la experimentación, la utilización de recursos tecnológicos e informáticos, la producción oral y escrita, y el trabajo en equipo.
Journal of Business & Economics Research (JBER), 2012
There has been an ongoing debate for decades, especially since the inception of the Financial Acc... more There has been an ongoing debate for decades, especially since the inception of the Financial Accounting Standards Board (FASB), over the appropriate application of generally accepted accounting principles (GAAP) to private companies. This so-called Big GAAP vs. Little GAAP debate has now come to a crisis point. The Financial Accounting Foundation (FAF) has taken a position that is contrary to the recommendations of the Blue Ribbon Panel on Standard Setting for Private Companies (the Panel) presented in January 2011, despite having been represented on the Panel. The American Institute of Certified Public Accountants (AICPA), also represented on the Panel, has responded by taking a strong stand in favor of the Panels position and against the new FAF recommendation and Invitation to Comment, published on October 4, 2011. Additionally, the International Accounting Standards Board has developed a set of reporting standards for small and medium size enterprises (IFRS for SMEs) that has n...
De La Ciencia Ilustrada a La Ciencia Romantica Actas De Las Ii Jornadas Sobre Espana Y Las Expediciones Cientificas En America Y Filipinas 1995 Isbn 84 87111 53 X Pags 615 637, 1995
2015 IEEE Energy Conversion Congress and Exposition (ECCE), 2015
The injection of a high frequency signal in the stator via inverter has been proven to be a viabl... more The injection of a high frequency signal in the stator via inverter has been proven to be a viable option to estimate the magnet temperature in permanent magnet synchronous machines (PMSMs). Injection of a pulsating d-axis current is especially appealing, as it is insensitive to the speed, Ld and Lq inductance variations. Furthermore, it is suitable both for interior PMSMs (IPMSMs) and surface PMSMs (SPMSMs). Regardless of its promising characteristics, there are a number of issues which can reduce its accuracy, including machine assembling tolerances and rotor lamination grain orientation, which might need to be considered. This paper analyzes the sensitivity of temperature estimation using pulsating d-axis high frequency current injection to rotor eccentricities, PM assembling tolerances and lamination grain orientation. Preliminary results indicate that these issues can have a non-negligible impact on the accuracy of the method. 1
Enfermería clínica
Antecedentes: Existe poca información sobre la medición de restos gástricos antes de la alimentac... more Antecedentes: Existe poca información sobre la medición de restos gástricos antes de la alimentación en recién nacidos (RN) prematuros. Objetivo: El objetivo del estudio fue comparar la cantidad de alimentación a las 2 y 3 semanas de edad, el número de días de alimentación completa, el crecimiento y la incidencia de complicaciones entre los RN prematuros que se sometieron a una medición rutinaria de restos gástricos frente a aquellos que no lo hicieron. Método: Ensayo clínico aleatorizado donde 61 RN prematuros fueron asignados al azar a uno de los 2 grupos. En el grupo 1 se midió la presencia de restos gástricos antes de la alimentación y en el grupo 2 no. Resultados: No hubo diferencia en la cantidad de alimentación a las 2 y 3 semanas de edad, tampoco en el crecimiento, en los días con nutrición parenteral o en la
Cancer control : journal of the Moffitt Cancer Center, 2013
Significant advancements have occurred in surgical procedures and chemoradiation therapy for blad... more Significant advancements have occurred in surgical procedures and chemoradiation therapy for bladder preservation. This review addresses primary treatment options for bladder cancer, including an overview of bladder-sparing strategies. Surgical series demonstrate that highly selected patients with cT2N0M0 urothelial bladder cancers can be managed with partial cystectomy and bilateral pelvic lymphadenectomy. For patients with cT2N0M0 to cT4aN0M0 urothelial bladder cancers, neoadjuvant chemotherapy followed by radical cystectomy or maximal transurethral resection of the bladder tumor (TURBT) followed by chemoradiation therapy results in equivalent survival rates. However, each treatment option has a different impact on quality of life. Current chemoradiation therapy trials are evaluating novel approaches to improve outcomes. Maximal TURBT followed by chemoradiation therapy demonstrated equivalent survival with radical cystectomy while preserving bladder function in the majority of pat...
Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual Conference, 2006
Real time left ventricular (LV) pressure-volume (P-V) loops have provided a framework for underst... more Real time left ventricular (LV) pressure-volume (P-V) loops have provided a framework for understanding cardiac mechanics in experimental animals and humans. Conductance measurements have been used for the past 25 years to generate an instantaneous left ventricular (LV) volume signal. The standard conductance method yields a combination of blood and ventricular muscle conductance; however, only the blood signal is used to estimate LV volume. The state of the art techniques like hypertonic saline injection and IVC occlusion, determine only a single steady-state value of the parallel conductance of the cardiac muscle. This is inaccurate, since the cardiac muscle component should vary instantaneously throughout the cardiac cycle as the LV contracts and fills, because the distance from the catheter to the muscle changes. The capacitive nature of cardiac muscle can be used to identify its contribution to the combined conductance signal. This method, in contrast to existing techniques, yi...
dye for Photosensitized Solar Cells. The ligands and the complexes were characterized by 1 H y 31... more dye for Photosensitized Solar Cells. The ligands and the complexes were characterized by 1 H y 31 P-NMR, UV-Vis, IR and Cyclic and differential pulse voltammetries.
IFIP Advances in Information and Communication Technology, 2010
Businesses today have more than ever a sharp focus on reducing capital and operational expenses. ... more Businesses today have more than ever a sharp focus on reducing capital and operational expenses. Business Process Outsourcing (BPO), Knowledge Process Outsourcing (KPO) and adoption of shared service models have all increased on a global scale. This results in an emerging complexity and volatility of business relationships. As the future internet of services evolves towards dynamic "service marketplaces", where shared services are discovered, negotiated and choreographed at run-time, the new approaches to the compliance management in complex environments are needed. We argue that one of the key issues to address is trust. This paper describes the compliance management models in emerging outsourcing environments that include use of shared services such as cloud computing services. In this context, we briefly present MASTER project that, among other things, integrates several mechanisms to increase the trust levels among stakeholders. Finally, we present a solution for the automated evidence collection at the service provider site and discuss related trust issues.
2010 17th IEEE International Conference on Electronics, Circuits and Systems, 2010
A low-voltage, compact and fast circuit for sorting currents is reported. It is based on an enhan... more A low-voltage, compact and fast circuit for sorting currents is reported. It is based on an enhanced four-transistor (4-T) min-max CMOS switch to reduce the switch voltage drop. The inherent avoidance of mirroring that produces mismatch is extended to the whole sorting circuit, while keeping the voltage drop to very low levels. The sorted output currents are by construction equal to the input currents, so errors can be greatly reduced compared to other approaches. Simulations show that, for a 0.35 µm technology, a three-stage cascade operates correctly at VDD = 1.2 V, being each stage voltage drop tens of mV.
Journal of Orthopaedic Surgery and Research, 2021
Journal of Orthopaedics and Traumatology, 2021
Background Proximal humerus fractures are one of the main osteoporotic fractures. Choosing betwee... more Background Proximal humerus fractures are one of the main osteoporotic fractures. Choosing between conservative or surgical treatment is a controversial topic in the literature, as is the functional impact. The main aim of our study was to analyse whether patient comorbidities should influence the final therapeutic decision for these fractures. Material and methods We collected data from 638 patients with proximal humerus fractures. The main variable collected was exitus. We also collected the following data: age, gender, type of fracture, laterality, type of treatment, production mechanism, comorbidities and the Charlson comorbidity index (CCI) for each patient. The therapeutic indication used the criteria established by the Upper Limb Unit in our centre. We performed chi-square tests, Fischer’s exact tests and Student’s t-tests to compare the variables. We used the Kaplan–Meier method to analyse both the overall and disease-specific survival rates. We employed the Cox regression m...
Enciclopedia Del Espanol En Los Estados Unidos Anuario Del Instituto Cervantes 2008 2008 Isbn 978 84 88252 90 6 Pags 607 616, 2008
La Sociologia Y Los Nuevos Retos a Socioloxia E Os Novos Retos Iv Congreso Astur Galaico De Socioloxia a Coruna 23 24 De Marzo De 2007 2007 Isbn 978 84 9749 245 4, 2007
Enciclopedia Del Espanol En Los Estados Unidos Anuario Del Instituto Cervantes 2008 2008 Isbn 978 84 88252 90 6 Pags 653 656, 2008
Boletin Cf S, Jun 11, 2014
En este trabajo presentamos un rediseño del método de evaluación, para dar un marco de evaluación... more En este trabajo presentamos un rediseño del método de evaluación, para dar un marco de evaluación al curso de Estadística en carreras de Ingeniería, revalorizando algunos instrumentos de evaluación, basados en la evaluación continua y una permanente interacción teoría-práctica, además de la incorporación de los proyectos de análisis de datos como técnica didáctica. Con este marco se aspira a que la educación se vuelque sobre el contexto, creando un escenario para la puesta en obra del aprendizaje de la Estadística a partir de un variado menú de actividades, abriendo puertas para enriquecer el aprendizaje a través de la búsqueda de información, la observación, las entrevistas, la interacción, la experimentación, la utilización de recursos tecnológicos e informáticos, la producción oral y escrita, y el trabajo en equipo.
Journal of Business & Economics Research (JBER), 2012
There has been an ongoing debate for decades, especially since the inception of the Financial Acc... more There has been an ongoing debate for decades, especially since the inception of the Financial Accounting Standards Board (FASB), over the appropriate application of generally accepted accounting principles (GAAP) to private companies. This so-called Big GAAP vs. Little GAAP debate has now come to a crisis point. The Financial Accounting Foundation (FAF) has taken a position that is contrary to the recommendations of the Blue Ribbon Panel on Standard Setting for Private Companies (the Panel) presented in January 2011, despite having been represented on the Panel. The American Institute of Certified Public Accountants (AICPA), also represented on the Panel, has responded by taking a strong stand in favor of the Panels position and against the new FAF recommendation and Invitation to Comment, published on October 4, 2011. Additionally, the International Accounting Standards Board has developed a set of reporting standards for small and medium size enterprises (IFRS for SMEs) that has n...
De La Ciencia Ilustrada a La Ciencia Romantica Actas De Las Ii Jornadas Sobre Espana Y Las Expediciones Cientificas En America Y Filipinas 1995 Isbn 84 87111 53 X Pags 615 637, 1995
2015 IEEE Energy Conversion Congress and Exposition (ECCE), 2015
The injection of a high frequency signal in the stator via inverter has been proven to be a viabl... more The injection of a high frequency signal in the stator via inverter has been proven to be a viable option to estimate the magnet temperature in permanent magnet synchronous machines (PMSMs). Injection of a pulsating d-axis current is especially appealing, as it is insensitive to the speed, Ld and Lq inductance variations. Furthermore, it is suitable both for interior PMSMs (IPMSMs) and surface PMSMs (SPMSMs). Regardless of its promising characteristics, there are a number of issues which can reduce its accuracy, including machine assembling tolerances and rotor lamination grain orientation, which might need to be considered. This paper analyzes the sensitivity of temperature estimation using pulsating d-axis high frequency current injection to rotor eccentricities, PM assembling tolerances and lamination grain orientation. Preliminary results indicate that these issues can have a non-negligible impact on the accuracy of the method. 1
Enfermería clínica
Antecedentes: Existe poca información sobre la medición de restos gástricos antes de la alimentac... more Antecedentes: Existe poca información sobre la medición de restos gástricos antes de la alimentación en recién nacidos (RN) prematuros. Objetivo: El objetivo del estudio fue comparar la cantidad de alimentación a las 2 y 3 semanas de edad, el número de días de alimentación completa, el crecimiento y la incidencia de complicaciones entre los RN prematuros que se sometieron a una medición rutinaria de restos gástricos frente a aquellos que no lo hicieron. Método: Ensayo clínico aleatorizado donde 61 RN prematuros fueron asignados al azar a uno de los 2 grupos. En el grupo 1 se midió la presencia de restos gástricos antes de la alimentación y en el grupo 2 no. Resultados: No hubo diferencia en la cantidad de alimentación a las 2 y 3 semanas de edad, tampoco en el crecimiento, en los días con nutrición parenteral o en la
Cancer control : journal of the Moffitt Cancer Center, 2013
Significant advancements have occurred in surgical procedures and chemoradiation therapy for blad... more Significant advancements have occurred in surgical procedures and chemoradiation therapy for bladder preservation. This review addresses primary treatment options for bladder cancer, including an overview of bladder-sparing strategies. Surgical series demonstrate that highly selected patients with cT2N0M0 urothelial bladder cancers can be managed with partial cystectomy and bilateral pelvic lymphadenectomy. For patients with cT2N0M0 to cT4aN0M0 urothelial bladder cancers, neoadjuvant chemotherapy followed by radical cystectomy or maximal transurethral resection of the bladder tumor (TURBT) followed by chemoradiation therapy results in equivalent survival rates. However, each treatment option has a different impact on quality of life. Current chemoradiation therapy trials are evaluating novel approaches to improve outcomes. Maximal TURBT followed by chemoradiation therapy demonstrated equivalent survival with radical cystectomy while preserving bladder function in the majority of pat...
Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual Conference, 2006
Real time left ventricular (LV) pressure-volume (P-V) loops have provided a framework for underst... more Real time left ventricular (LV) pressure-volume (P-V) loops have provided a framework for understanding cardiac mechanics in experimental animals and humans. Conductance measurements have been used for the past 25 years to generate an instantaneous left ventricular (LV) volume signal. The standard conductance method yields a combination of blood and ventricular muscle conductance; however, only the blood signal is used to estimate LV volume. The state of the art techniques like hypertonic saline injection and IVC occlusion, determine only a single steady-state value of the parallel conductance of the cardiac muscle. This is inaccurate, since the cardiac muscle component should vary instantaneously throughout the cardiac cycle as the LV contracts and fills, because the distance from the catheter to the muscle changes. The capacitive nature of cardiac muscle can be used to identify its contribution to the combined conductance signal. This method, in contrast to existing techniques, yi...
dye for Photosensitized Solar Cells. The ligands and the complexes were characterized by 1 H y 31... more dye for Photosensitized Solar Cells. The ligands and the complexes were characterized by 1 H y 31 P-NMR, UV-Vis, IR and Cyclic and differential pulse voltammetries.
IFIP Advances in Information and Communication Technology, 2010
Businesses today have more than ever a sharp focus on reducing capital and operational expenses. ... more Businesses today have more than ever a sharp focus on reducing capital and operational expenses. Business Process Outsourcing (BPO), Knowledge Process Outsourcing (KPO) and adoption of shared service models have all increased on a global scale. This results in an emerging complexity and volatility of business relationships. As the future internet of services evolves towards dynamic "service marketplaces", where shared services are discovered, negotiated and choreographed at run-time, the new approaches to the compliance management in complex environments are needed. We argue that one of the key issues to address is trust. This paper describes the compliance management models in emerging outsourcing environments that include use of shared services such as cloud computing services. In this context, we briefly present MASTER project that, among other things, integrates several mechanisms to increase the trust levels among stakeholders. Finally, we present a solution for the automated evidence collection at the service provider site and discuss related trust issues.
2010 17th IEEE International Conference on Electronics, Circuits and Systems, 2010
A low-voltage, compact and fast circuit for sorting currents is reported. It is based on an enhan... more A low-voltage, compact and fast circuit for sorting currents is reported. It is based on an enhanced four-transistor (4-T) min-max CMOS switch to reduce the switch voltage drop. The inherent avoidance of mirroring that produces mismatch is extended to the whole sorting circuit, while keeping the voltage drop to very low levels. The sorted output currents are by construction equal to the input currents, so errors can be greatly reduced compared to other approaches. Simulations show that, for a 0.35 µm technology, a three-stage cascade operates correctly at VDD = 1.2 V, being each stage voltage drop tens of mV.