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Leovaldo Fraga Domínguez

Leovaldo Fraga Domínguez
Audita S.A. · Auditoría. Consultoría

About

198
Publications
19,785
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1,574
Citations
Citations since 2017
17 Research Items
468 Citations
2017201820192020202120222023020406080
2017201820192020202120222023020406080
2017201820192020202120222023020406080
2017201820192020202120222023020406080
Additional affiliations
June 2017 - January 2019
Audita S.A.
Position
  • Gerente

Publications

Publications (198)
Conference Paper
Full-text available
Universidad de Matanzas "Camilo Cienfuegos". Autopista a Varadero km 3½ Apartado Postal: 44714. Teléfono: 45276777 Resumen En el presente artículo se presenta un procedimiento general de consultoría organizacional para ser utilizado por los consultores de la Sociedad Audita S.A, se desarrolla a partir de las fases o etapas propuestas por diferentes...
Article
We report changes of coercivity, induced magnetic anisotropy, magneto-optical domain structure and frequency dependencies of coercivity and energy loss (up to 10 MHz) associated with the structural modifications produced by thermal treatments under applied magnetic field (field annealing) in toroidal wound cores of Fe73.5Cu1Nb3Si15.5B7 amorphous al...
Article
In Syria, the United States is “training and equipping” non-state groups to battle ISIS. In Eastern Ukraine, Russia has provided weapons, training, and support to separatists. In China, “private” computer hackers operating with state support create codes designed to infiltrate sensitive computer systems. These are just a few examples of the many wa...
Conference Paper
Full-text available
RESUMEN La disminución de costos en cualquier proceso productivo o de servicios ha sido un objetivo común en cualquier organización, en lo fundamental en busca de mayores márgenes de ganancias, de igual manera se ha generalizado según el marco legal actual la formación de precios a partir del total de los costos, sin importar que esos totales se es...
Conference Paper
Full-text available
RESUMEN La disminución de costos en cualquier proceso productivo o de servicios ha sido un objetivo común en cualquier organización, en lo fundamental en busca de mayores márgenes de ganancias, de igual manera se ha generalizado según el marco legal actual la formación de precios a partir del total de los costos, sin importar que esos totales se es...
Chapter
Recent developments in linguistic theory have successfully reconciled diachronic syntactic change (Biberauer & Roberts, 2006; Breibarth, Lucas & Willis, 2008; Roberts, 2007) and intra-speaker variation (Adger & Smith, 2005, 2010; Henry, 1995; Barbiers, 2005) with Minimalist models of the language faculty. Cases of L1 attrition, however, whereby mor...
Conference Paper
Full-text available
A pesar de que en el contexto internacional en las últimas dos décadas la Responsabilidad Social Empresarial (RSE) está muy difundida y ha cobrado fuerza no solo en el ámbito académico; en Cuba el término es poco conocido, lo cual no significa que el estado se haya desentendido de esta problemática, pues su principales políticas se han enfocado...
Article
The photovoltaic power industry is rapidly growing, with worldwide installations expected to grow by 60 to 66 GW in 2017 [1]. ABB is deeply involved in this growth, applying a holistic approach to photovoltaic generation projects that encompass the entire plant life cycle as well as the two stages of photovoltaic generation projects. The first stag...
Article
Full-text available
Researchers have documented the positive effects of adult imitation on the social and joint attention behaviors of children with autism spectrum disorder. In the current study videotapes from an archival data base were recoded to address the effects of imitation on the children's stereotypic/ repetitive behavior and their behavior directed toward t...
Article
Full-text available
RESUMEN Estudios epidemiológicos, muestran una relación estrecha entre el índice de masa corporal y el riesgo de desarrollar insuficiencia renal crónica. Objetivo: Identificar en escolares obesos, manifestaciones iniciales de enfermedad renal. Metodología: Estudio descriptivo-correlacional, en 183 escolares (88 obesos y 72 eutróficos). Se evaluaron...
Patent
The Gypsy Database (GyDB) is an open editable database about the evolutionary relationship of viruses, mobile genetic elements (MGEs) and the genomic repeats. The GyDB is a long-term project that has been arranged in a database in continuous progress. The first release focused on the evolutionary relationships of Ty3/Gypsy and Retroviridae LTR retr...
Article
Background In England and Wales nearly 66 000 women are living with FGM and a potential 22 000 girls are at risk each year. Due to increasing demand, a dedicated FGM service within the sexual health setting was initiated in partnership with a dynamic Somali facilitator and a voluntary community organisation. Aims To analyse the attendances of women...
Article
The ouabain/veratridine-dependent neuroblastoma (neuro-2a) cell-based assay (CBA) was applied for the determination of the presence of ciguatoxin (CTX)-like compounds in ciguatera-suspected fish samples caught in the Canary Islands. In order to avoid matrix interferences the maximal concentration of wet weight fish tissue exposed to the neuro-2a ce...
Article
Assistive Technology (AT) is an interdisciplinary research area that allows finding solutions to the individual with disability [1] by easing or improving the functions or the skills for accomplishing daily activities. A technology can be considered "assistive" if it is fit for the needs, skills and capabilities of the person, taking into account m...
Article
We compare seismic attenuation results for three broadband seismic networks: the Integrate Seismic Network (CI) in California, the Middle America Seismic Experiment (MASE) in Mexico, and the Peru Seismic Experiment (PERUSE). We obtained independent measurements of scattering and intrinsic attenuation using the Multiple Lapse Time Window (MLTW) by H...
Article
Full-text available
In the search for acetylcholinesterase inhibitors as a potential target for the discovery of anthelmintic drugs, a series of 27 pyridinic and pyrazinic compounds have been designed on the basis of molecular hybridization of two known AChE inhibitors, namely, tacrine and (-)-3-O-acetylspectaline, and on the concept of isosterism. The synthesized com...
Article
BACKGROUND: crusted scabies is a rare variant of scabies, which is a massive infestation by Sarcoptes scabiei var. hominis. It is characterized by hyperkeratotic plaques and crusts, which can be localized in one single area, or widespread OBJECTIVES: The study aims to determine the frequency of crusted scabies in our patients with scabies, establis...
Article
Few prospective studies about the management of unilateral retinoblastoma with pathology risk factors (PRFs) have been published. Patients (n = 114) were divided into four groups: Group 1 (initial chemoreduction) (n = 17). Groups 2 and 3, included patients initially enucleated with no, or lower risk PRFs: (n = 65) and with higher risk PRFs (n = 30)...
Article
El síndrome platipnea-ortodesoxia (SPO) se caracteriza por disnea e hipoxemia en ortostatismo que remite al adoptar el decúbito supino. Las causas pueden ser cardíacas o pulmonares. Las cardíacas se deben a un circuito derecha-izquierda que se hace más evidente al incorporarse, cuando aumenta la cantidad de sangre desoxigenada que confluye a la cir...
Article
LEOPARD's syndrome, a rare genodermatosis, associated with lentigines, electrocardiographic disorders, ocular hypertelorism, pulmonary stenosis (and anatomical malformations of the heart), abnormal genitalia, growth retardation and sensorineural deafness which determine the acronym. We report a case of a patient of 14 years old with almost all comp...
Article
Survival probability predictions in critically ill patients are mainly used to measure the efficacy of intensive care unit (ICU) treatment. The available models are functions induced from data on thousands of patients. Eventually, some of the variables used for these purposes are not part of the clinical routine, and may not be registered in some p...
Article
Sperm cell plasma membrane and the outer acrosomal membrane fuse profusely during the acrosome reaction. The process is triggered by extracellular signals that elicit several intracellular events leading ultimately to membrane fusion. We have developed a streptolysin O permeabilizing protocol that selectively affects the spermatozoon plasma membran...
Article
Full-text available
Comunicamos un paciente joven, que presentaba una inmunodepresión atribuida al alcohol y la desnutrición, que consultó por numerosas lesiones. Luego de los estudios auxiliares se llegó al diagnóstico y mostró buena respuesta al tratamiento convencional para esta leishmaniasis. Las lesiones polimorfas obligaron a varios diagnósticos diferenciales, e...
Article
Kidney involvement in children with Human Immunodeficiency Virus (HIV) infection is increasing in prevalence in parallel with the longer survival of HIV-infected patients and the side-effects of new antiretroviral drugs. However, there are only a few reports describing renal tubular disorders in HIV+ children. This is a cross-sectional, case series...
Article
To evaluate effectiveness and efficiency of ICU care using the APACHE III model customized for Spain. Prospective, observational, multi-centre cohort study. Nine Spanish ICUs. One thousand two hundred and eleven patients admitted consecutively. Patients under 16 years of age, patients admitted for less than 24 hours, patients admitted for definitiv...
Article
To assess reproducibility in data collection and its influence on the calculation of the severity scoring and mortality risk in APACHE II, APACHE III adapted for Spain and SAPS II. Multicenter, prospective, observational cohort study. Nine Spanish Intensive Care Units (ICUs). 1,211 consecutive patients admitted during the study period were included...
Chapter
Full-text available
Internet popularity among young people is causing relevant changes in the way they currently read and write. Up to what level does information fragmentation caused by Internet determine low quality academic literacy? How do university students interact with the hypertext? What are the competences which teachers should develop in order to encourage...
Article
Full-text available
The present paper is a combined study on the medium and short-term evolution of the littoral between Chipiona and Rota (SW Spain). The analysis of coastal evolution over a period of 24 years (i.e. medium-term), was carried out using six, well temporally spaced, photogrammetric flights. Cliff top and dune toe were used as shoreline indicators to sol...
Article
Full-text available
Using immunostaining during early zebrafish embryogenesis, we report that the cranial and trunk neural crest expresses the paired box protein Pax7, thus revealing a novel neural crest marker in zebrafish. In the head, we show that Pax7 is broadly expressed in the cranial crest cells, which indicates that duplication of the paralogous group Pax3/7 a...
Chapter
Lung sounds (LS) are important for diagnosis of the pulmonary system but interference signals such as heart sounds (HS) complicate their computer analysis. Sub-band decompositions have provided promising schemes for filtering HS; however, the mother wavelet and the number of level of decomposition have to be selected. On the contrary, the Empirical...
Article
Linear elastic fracture mechanics modelling was performed to determine the effect of geometry and angular position on the stress intensity factor (K) around shallow quasi-elliptic pit-like cracks, in flat specimens subjected to mixed load mode with aspect ratio depth/major width axes (a/c) <1. Corrosion pits were modelled as semi-elliptic surface f...
Article
Numerous efforts have been made in the past to extend the polymer regime towards higher indices and lower dispersion. The authors report a successful approach using polyelectrolytes, in which the optical parameters can be adjusted by varying the structure of the polymer and by the proper choice of the counterions. We use polyelectrolytes which are...
Article
Objective Analyze acute respiratory distress syndrome (ARDS) in patients admitted to an Intensive Care Medicine Service (ICMS) and prognostic factors of mortality in these patients. Design Prospective study of all the patients admitted consecutively in the ICMS from January 1998 to February 2003. Scope ICMS of a third level university site with 3...
Article
Several attempts have been made to achieve a quantitative analysis of lung sounds mainly for two purposes: a) an understanding of their genesis, and b) an insight of their changes with pathologies for medical diagnosis. Early studies involved the collection of acoustic information at several positions on the thoracic surface or at the extra-thoraci...
Article
Analyze acute respiratory distress syndrome (ARDS) in patients admitted to an Intensive Care Medicine Service (ICMS) and prognostic factors of mortality in these patients. Prospective study of all the patients admitted consecutively in the ICMS from January 1998 to February 2003. ICMS of a third level university site with 32 beds in its General Are...
Article
Objective: To evaluate the incidence of antituberculosis drugs side effects in patients treated for latent tuberculosis infection. Methods: Retrospective study covering the period from January 1998 to June 2005, based on clinical records from the hospital workers screened for tuberculosis. Results: Out of 773 cases observed, 117 had latent tubercul...
Article
To determine the sensitivity and negative predictive value of D-dimer levels measured by fast enzyme-linked immunoabsorbent assay (ELISA) in pulmonary embolism. Prospective study of consecutive patients with suspicion of pulmonary embolism attended in the Emergency Room of the Hospital de La Princesa in Madrid, Spain. Thromboembolism was diagnosed...
Article
Objetivo: Determinar la sensibilidad y el valor predictivo negativo del dímero-D, por enzimoinmunoanálisis (ELISA) rápido, en la embolia pulmonar. Pacientes y métodos: Estudio prospectivo de pacientes atendidos consecutivamente por sospecha clínica de embolia en el Servicio de Urgencias del Hospital de La Princesa de Madrid. El diagnóstico de tromb...
Article
Neural crest cells are considered a key vertebrate feature that is studied intensively because of their relevance to development and evolution. Here we report the expression of Pax7 in the dorsal non-neural ectoderm and in the trunk neural crest of the early chick embryo. Pax7 is expressed in the trunk neural crest migrating along the ventral and d...
Article
Objective To determine the impact of the interval between pregnancies on maternal-foetal morbidity.
Article
Full-text available
GRACIA, F.J.; ANFUSO, G.; BENAVENTE, J.; DEL RIO, L.; DOMINGUEZ, L. and MARTINEZ, J.A., 2005. Monitoring coastal erosion at different temporal scales on sandy beaches: application to the Spanish Gulf of Cadiz coast. Journal of Coastal Research, SI 49 (Proceedings of the 2 nd Meeting in Marine Sciences), 22 – 27, Valencia -– Spain, ISSN 0749-0208 Th...
Article
Full-text available
The present study assesses coastal vulnerability to erosion processes along a 23-km-long coastal sector that presents different morphological features and grades of human occupation. Seven photogrammetric flights, at different scales, were used for reconstructing the coastal evolution from 1956 to 2001. Several sources were compiled to assess human...
Article
Objective: To determine the impact of the interval between pregnancies on maternal-foetal morbidity. Materiads Method: A cohort study carried out from 1st May until 31st December 2002 in the Gynaecology and Obstetric Department of the Metropolitan Hospital Complex (Social Security) in Panama. We included patients with previous pregnancies, and who...
Article
The electronics industry generates large amounts of fluoride-containing effluents. The objective of this studyis to study the feasibility of applying reverse osmosis (RO) membrane separation to reduce fluoride load to less than 1 kg/d. The effect of transmembrane pressure on the removal of fluoride ion has been investigated in detail, and the desig...
Article
This study reveals that the chick embryo has active the machinery for the production and degradation of the amyloid beta peptide characteristic of Alzheimer's disease. We cloned the principal beta-amyloid precursor protein isoforms in the chick embryo and observed that they are highly homologous to the human sequences and identical at the C-termina...
Article
The acrosome reaction (AR) is a special exocytotic process promoted by signal transduction pathways studied in many laboratories. Progesterone (P4) is one of the trigger molecules proposed. Upon the binding of P4 to its receptor, several molecules could be activated, including G-proteins, phospholipase A(2) (PLA(2)), and phospholipase C (PLC). The...
Article
The electronics industry generates large amounts of fluoride-containing effluents. The objective of this study is to study the feasibility of applying reverse osmosis (RO) membrane separation to reduce fluoride load to less than 1 kg/d. The effect of transmembrane pressure on the removal of fluoride ion has been investigated in detail, and the desi...
Article
In the electronics industry, the preparation of silicon plates generates effluents that contain a great amount of colloidal silica. Two processes--decantation and ultrafiltration--are studied with in view the treatment of the effluents released by the firm Rockwood Electronic Materials. The feasibility of each of the two processes is studied separa...
Article
Se presentan tres casos de hiperaldosteronismo primario confirmado, todos ellos con prueba postural positiva, un hallazgo como el que se aprecia en los adenomas clásicos. Mediante técnicas de imagen un caso tenía morfología de engrosamiento adrenal bilateral y en los otros dos se detectaron sendos macronódulos unilaterales. En todos ellos había una...
Article
Temporomandibular joint arthoscopy is a minimal invasive surgical procedure commonly used to effectively treat some internal derangement of the TMJ. However, this method is not free of complications. Arteriovenous fistula (AVF) is a lesion that communicates the high flow arterial system and the low flow venous network. We describe a new case of pre...
Article
In the electronics industry, the preparation of silicon plates generates effluents that contain a great amount of colloidal silica. Two processes—decantation and ultrafiltration—are studied with in view the treatment of the effluents released by the firm Rockwood Electronic Materials. The feasibility of each of the two processes is studied separate...
Article
The expansive lesions, whether tumoral or not, originated at the level of the anatomical region of the skull base (SB), show a great histologic variety and clinicaly they cause a variable chronic neurological disfunction. Surgical treatment appears to be the best therapeutic option. An exhaustive knowledge of the topographic anatomy of this area is...
Article
The expansive lesions, whether tumoral or not, originated at the level of the anatomical region of the skull base (SB), show a great histologic variety and clinicaly they cause a variable chronic neurological disfunction. Surgical treatment appears to be the best therapeutic option. An exhaustive knowledge of the topographic anatomy of this area is...
Article
Full-text available
The paper starts by introducing urban archaeology as a Latin American subject We then oppose Portuguese and Spanish towns as two different approaches to city life Spanish cities were planned, in Renaissance style, as chequered blocks, while Porthguese ones continued in the Medieval wrinkled style. We then turn our attention to the old quarters of H...
Article
Introduction The development of techniques for preoperative localization, such as Tc-99m-sestamibi scanning, has simplified surgical technique in patients with primary hyperparathyroidism and has allowed the use of a unilateral approach in selected cases. The aim of this study was to prospectively evaluate patients with hyperparathyroidism who unde...
Article
Full-text available
Objective To evaluate the medium-term results of percutaneous closure of atrial septal defect. Methods Twenty-two children (mean weight, 23±11 kg; mean age, 5.7±2.4 years) underwent percutaneous atrial septal defect closure under general anesthesia. The procedure was monitored by transesophageal echocardiography. DAS-Angel Wings™ (n=4) and the Amp...
Article
Full-text available
To evaluate the medium-term results of percutaneous closure of atrial septal defect. Twenty-two children (mean weight, 23 11kg; mean age, 5.7 2.4 years) underwent percutaneous atrial septal defect closure under general anesthesia. The procedure was monitored by transesophageal echocardiography. DAS-Angel Wings (n4) and the Amplatzer device (n18) we...