oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Any time

2019 ( 34 )

2018 ( 191 )

2017 ( 214 )

2016 ( 331 )

Custom range...

Search Results: 1 - 10 of 201571 matches for " Domingo P "
All listed articles are free for downloading (OA Articles)
Page 1 /201571
Display every page Item
Incidencia de las enfermedades hematológicas más comunes diagnósticadas mediante estudio de médul ósea (MO) en un período de cuatro a os en la Clínica León XIII de Medellín
P. Jaramillo,José Domingo Torres Hernández
Iatreia , 2006,
Abstract: Determinar la indicencia de las enfermedades hematológicas mieloproleferativos crónicos, leucemias agudas, médula ósea.
Tachinidae (Diptera) from the Caldera de Taburiente National Park, La Palma (Canary Islands)
Tschorsnig, H. P.,Domingo-Quero, T.,Domingo-Quero, T.,Alonso-Zarazaga, M. A.
Graellsia , 2007,
Abstract: Data on distribution, abundance and phenology of Tachinidae (Diptera) from the Caldera de Taburiente National Park on La Palma are given, based on systematic Malaise trap and yellow pan trap samples between August 1999 and July 2001. The occurrence of 22 species is proved; all of them were already known from the Canary Islands, but two species (Gonia quadrisetosa and Phytomyptera vaccinii) are recorded from La Palma for the first time. The present paper is a result of the project “Inventory and study of the invertebrate fauna of the Caldera de Taburiente National Park”. Se presentan datos de distribución, abundancia y fenología de Tachinidae (Diptera), obtenidos en el Parque Nacional de la Caldera de Taburiente en La Palma con trampa Malaise y trampa amarilla entre agosto de 1999 y julio de 2001. Han sido recolectadas 22 especies, todas ya conocidas en las Islas Canarias, pero dos especies (Gonia quadrisetosa y Phytomyptera vaccinii) son citas nuevas para La Palma. El presente artículo es un resultado del proyecto “Inventario y estudio de la fauna invertebrada del Parque Nacional de la Caldera de Taburiente”.
Cuidados de enfermería: Hiperoxaluria primaria tipo 1 en un enfermo en diálisis: Una enfermedad infrecuente pero severa Nursing care: primary hyperoxaluria type 1 in a dialysis patient: An uncommon but severe illness
Domingo Pérez Ruiz,Monserrat Pérez Robles
Revista de la Sociedad Espa?ola de Enfermería Nefrológica , 2005,
Abstract:
Appendiceal Colic in Children: Is It A True Surgical Entity?  [PDF]
Jason Marone, Domingo Alvear
Surgical Science (SS) , 2012, DOI: 10.4236/ss.2012.38079
Abstract: Background/Purpose: For decades children have been crowding the offices of Pediatricians’ and Pediatric Surgeons with a common complaint of unexplained recurrent right lower quadrant pain. For years the topic of appendiceal colic as a cause for this recurrent abdominal pain has remain controversial. This paper highlights the experience of a single surgeon over a 5 years period using an algorithmic approach to diagnose and treat children with appendiceal colic. Methods: This is a retrospective review of 31 consecutive cases of patients experiencing recurrent unexplained right lower quadrant abdominal pain for greater than three weeks. All patients were evaluated by a single surgeon at the same institution. The patients meeting the criteria for appendiceal colic had an elective open appendectomy. The data included was compiled by a retrospective chart review from Jan 1, 2006 to December 31, 2010. Results: Twelve percent or 31 of the 238 elective appendectomies done between Jan. 2006 to Dec. 2010 where done for appendiceal colic. Sixteen were females and 15 where males ranging in age from 5-17 years of age. Average duration of symptoms was 3 weeks to 5 years. All patients had previous work up most of which where inconclusive for an organic cause. All patients presented with colic and McBurney’s point tenderness. On pathological examination the presence of a fecalith, inspissated stool or fibrosis were the most common findings. A normal appendix was observed in 14% of the cases. 100% of the patients were symptom free with three months of operation. Conclusion: Appendiceal colic proves to be true in a small subset of patients presenting with unexplained right lower quadrant abdominal pain. A high index of suspicion coupled with a thorough history and physical exam is needed to identify these patients. Classically they will present with recurrent right lower abdominal pain at McBurney’s. In our experience an elective appendectomy has been curative.
Michael E. DeBakey and Denton A. Cooley— Mike, the Master Assembler; Denton, the Courageous Fighter: A Personal Overview Unforgettable Past Remembrances in the 1960s  [PDF]
Domingo S. Liotta
Open Journal of Thoracic Surgery (OJTS) , 2012, DOI: 10.4236/ojts.2012.23010
Abstract: Domingo S. Liotta discovered Assisted Circulation at the Department of Surgery of Baylor College of Medicine in Houston in 1961 and opened up a new medical therapy: Prolonged mechanical Cardiocirculatory Assistance (LVASs) for the treatment of Refractory and Irreversible Heart Failure. The American Society of Cardiology selected Liotta’s work for the “Young Investigator Award” granted in Denver in May 1962: ”This prolonged left ventricular bypass decompresses the left ventricle, reduces left ventricular work, decreases left ventricular wall tension and increases coronary circulation” (D. Liotta, D. A. Cooley, M. E. DeBakey et al. Prolonged assisted circulation during and after cardiac or aortic surgery: prolonged partial left ventricular bypass by means of intracorporeal circulation (Am J Cardiol 1963; 12: 399-405). Indeed, there is a lucky occurrence in science; I had the good luck to start this research at a moment when initially unrelated developments were actively taking place in cardiac surgery, long before any rigor or fine statistics were produced. The first observation was to recognize an interaction between the overstretched myocardial fibers and the result of cardiac assistance causing their shortening within the normal values when the excess of blood volume retained in the heart chamber was unloaded, and the second one was that the oxygen consumption of the heart (a measurement of its energy use) decreases during Cardiac Assistance. With the collaboration of Michael E. DeBakey, Liotta started the clinical experience of Cardiocirculatory Assistance and on August 6 1966 they succeeded in the first survival of a patient in postcardiotomy cardiogenic shock. Today, after 50 years, LVASs are in force in the medical practice worldwide and contrarily to transplantation practices, they have an unlimited future; they are continuously fed back by the scientific advances of general technologies. On April 4 1969 Cooley and Liotta implanted the first clinical Total Artificial Heart (TAH) as a bridge to heart transplantation. So far, this has been the case of TAH use in which the patient could be extubated and weaned off the ventilator the following morning. This is a sort of historical document. The venerable visit of Mike DeBakey to Argentina in 1996 was evidence of his majestic peace harmonized in the memory and veracity of useful years.
Determination of One Unknown Thermal Coefficient through the One-Phase Fractional Lamé-Clapeyron-Stefan Problem  [PDF]
Domingo Alberto Tarzia
Applied Mathematics (AM) , 2015, DOI: 10.4236/am.2015.613191
Abstract: We obtain explicit expressions for one unknown thermal coefficient (among the conductivity, mass density, specific heat and latent heat of fusion) of a semi-infinite material through the one-phase fractional Lamé-Clapeyron-Stefan problem with an over-specified boundary condition on the fixed face \"\". The partial differential equation and one of the conditions on the free boundary include a time Caputo’s fractional derivative of order \"\". Moreover, we obtain the necessary and sufficient conditions on data in order to have a unique solution by using recent results obtained for the fractional diffusion equation exploiting the properties of the Wright and Mainardi functions, given in: 1) Roscani-Santillan Marcus, Fract. Calc. Appl. Anal., 16 (2013), 802 - 815; 2) Roscani-Tarzia, Adv. Math. Sci. Appl., 24 (2014), 237 - 249 and 3) Voller, Int. J. Heat Mass Transfer, 74 (2014), 269 - 277. This work generalizes the method developed for the determination of unknown thermal coefficients for the classical Lamé-Clapeyron-Stefan problem given in Tarzia, Adv. Appl. Math., 3 (1982), 74 - 82, which is recovered by taking the limit when the order \"\" .
A Practical Solution to the Small Sample Size Bias and Uncertainty Problems of Model Selection Criteria in Two-Input Process Multiple Response Surface Methodology Datasets  [PDF]
Domingo Pavolo, Delson Chikobvu
Open Journal of Statistics (OJS) , 2019, DOI: 10.4236/ojs.2019.91010
Abstract: Multiple response surface methodology (MRSM) most often involves the analysis of small sample size datasets which have associated inherent statistical modeling problems. Firstly, classical model selection criteria in use are very inefficient with small sample size datasets. Secondly, classical model selection criteria have an acknowledged selection uncertainty problem. Finally, there is a credibility problem associated with modeling small sample sizes of the order of most MRSM datasets. This work focuses on determination of a solution to these identified problems. The small sample model selection uncertainty problem is analysed using sixteen model selection criteria and a typical two-input MRSM dataset. Selection of candidate models, for the responses in consideration, is done based on response surface conformity to expectation to deliberately avoid selection of models using the problematic classical model selection criteria. A set of permutations of combinations of response models with conforming response surfaces is determined. Each combination is optimised and results are obtained using overlaying of data matrices. The permutation of results is then averaged to obtain credible results. Thus, a transparent multiple model approach is used to obtain the solution which gives some credibility to the small sample size results of the typical MRSM dataset. The conclusion is that, for a two-input process MRSM problem, conformity of response surfaces can be effectively used to select candidate models and thus the use of the problematic model selection criteria is avoidable.
Kinematics and muscle activity of individuals with incomplete spinal cord injury during treadmill stepping with and without manual assistance
Antoinette Domingo, Gregory S Sawicki, Daniel P Ferris
Journal of NeuroEngineering and Rehabilitation , 2007, DOI: 10.1186/1743-0003-4-32
Abstract: We tested six volunteers with incomplete spinal cord injury and six volunteers with intact nervous systems. Subjects with spinal cord injury walked on a treadmill at six speeds (0.18–1.07 m/s) with body weight support with and without manual assistance. Healthy subjects walked at the same speeds only with body weight support. We measured electromyographic (EMG) and kinematics in the lower extremities and calculated EMG root mean square (RMS) amplitudes and joint excursions. We performed cross-correlation analyses to compare EMG and kinematic profiles.Normalized muscle activation amplitudes and profiles in subjects with spinal cord injury were similar for stepping with and without manual assistance (ANOVA, p > 0.05). Muscle activation amplitudes increased with increasing speed (ANOVA, p < 0.05). When comparing spinal cord injury subject EMG data to control subject EMG data, neither the condition with manual assistance nor the condition without manual assistance showed a greater similarity to the control subject data, except for vastus lateralis. The shape and timing of EMG patterns in subjects with spinal cord injury became less similar to controls at faster speeds, especially when walking without manual assistance (ANOVA, p < 0.05). There were no consistent changes in kinematic profiles across spinal cord injury subjects when they were given manual assistance. Knee joint excursion was ~5 degrees greater with manual assistance during swing (ANOVA, p < 0.05). Hip and ankle joint excursions were both ~3 degrees lower with manual assistance during stance (ANOVA, p < 0.05).Providing manual assistance does not lower EMG amplitudes or alter muscle activation profiles in relatively higher functioning spinal cord injury subjects. One advantage of manual assistance is that it allows spinal cord injury subjects to walk at faster speeds than they could without assistance. Concerns that manual assistance will promote passivity in subjects are unsupported by our findings.Several
The effects of powered ankle-foot orthoses on joint kinematics and muscle activation during walking in individuals with incomplete spinal cord injury
Gregory S Sawicki, Antoinette Domingo, Daniel P Ferris
Journal of NeuroEngineering and Rehabilitation , 2006, DOI: 10.1186/1743-0003-3-3
Abstract: Five individuals with chronic incomplete spinal cord injury (ASIA C-D) participated in the study. Each subject was fitted with bilateral ankle-foot orthoses equipped with artificial pneumatic muscles to power ankle plantar flexion. Subjects walked on a treadmill with partial bodyweight support at four speeds (0.36, 0.54, 0.72 and 0.89 m/s) under three conditions: without wearing orthoses, wearing orthoses unpowered (passively), and wearing orthoses activated under pushbutton control by a physical therapist. Subjects also attempted a fourth condition wearing orthoses activated under pushbutton control by them. We measured joint angles, electromyography, and orthoses torque assistance.A therapist quickly learned to activate the artificial pneumatic muscles using the pushbuttons with the appropriate amplitude and timing. The powered orthoses provided ~50% of peak ankle torque. Ankle angle at stance push-off increased when subjects walked with powered orthoses versus when they walked with passive-orthoses (ANOVA, p < 0.05). Ankle muscle activation amplitudes were similar for powered and passive-orthoses conditions except for the soleus (~13% lower for powered condition; p < 0.05).Two of the five subjects were able to control the orthoses themselves using the pushbuttons. The other three subjects found it too difficult to coordinate pushbutton timing. Orthoses assistance and maximum ankle angle at push-off were smaller when the subject controlled the orthoses compared to when the therapist-controlled the orthoses (p < 0.05). Muscle activation amplitudes were similar between the two powered conditions except for tibialis anterior (~31% lower for therapist-controlled; p < 0.05).Mechanical assistance from powered ankle-foot orthoses improved ankle push-off kinematics without substantially reducing muscle activation during walking in subjects with incomplete spinal cord injury. These results suggest that robotic plantar flexion assistance could be used during gait rehabilita
Síndrome de Gorlin (Síndrome Nevoide Basocelular)
De-Domingo,B.; González,F.; Lorenzo,P.;
Archivos de la Sociedad Espa?ola de Oftalmología , 2008, DOI: 10.4321/S0365-66912008000500008
Abstract: clinical case: a 77 year-old male patient with parkinson?s disease and senile dementia had many facial basal cell carcinomas and an ectropion of the left eye. when he experienced respiratory difficulty he was diagnosed to have an ameloblastoma in left nostril requiring surgery. discussion: gorlin syndrome is an autosomal dominant condition characterized by basal cell carcinomas, and skeletal and neurological anomalies. the presence of multiple basal cell carcinomas on the eyelids in a child or in a young patient should alert ophthalmologists to the possibility of this syndrome.
Page 1 /201571
Display every page Item


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.