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Search Results: 1 - 10 of 15780 matches for " Pedro;Mattar "
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Fatal septicemia caused by Chromobacterium violaceum in a child from Colombia
Martinez, Pedro;Mattar, Salim;
Revista do Instituto de Medicina Tropical de S?o Paulo , 2007, DOI: 10.1590/S0036-46652007000600011
Abstract: a 4-year old child living in colombia presented with a history of fever and severe abdominal pain for four days. the patient developed pneumonia, septic shock, multiple organ failure and died on the fifth day of hospitalization. chromobacterium violaceum was isolated from admission blood cultures and was resistant to ampicillin, cephalosporins, carbapenems and aminoglycosides.
Measurement of the flexing force of the fingers by a dynamic splint with a dynamometer
Silva, Silmara Nicolau Pedro da;Mattar Jr, Rames;Bolliger Neto, Raul;Pereira, Cesar Augusto Martins;
Clinics , 2005, DOI: 10.1590/S1807-59322005000500006
Abstract: purpose and methods: in order to determine forces acting upon an articular joint during hand rehabilitation, a dynamic splint was built and connected to a dynamometer (capable of measuring forces in the range 0 - 600 gf). through trigonometric calculation, the authors measured the flexing force in the proximal interphalangeal joint of the middle finger at 30°, 45°, 60°, and 90° of flexion. measurements were obtained in a population of 40 voluntary adults, 20 females and 20 males, this flexing force was correlated with age, sex, and anthropometric measures. results: force in the flexing tendon is maximal at the start of flexion, and decreases as the angle of joint flexion increases. a relationship was observed between finger length and the magnitude of the force exerted on the tendon: the longer the finger, the greater the force exherted upon the tendon. force is greater at all the measured angles, (except 30°) in males and in individuals of higher stature, and bigger arm span. conclusions: the flexing force can be effectively measured at all flexing angles, that it correlates with a number of different anthropometric parameters, and that such data are likely to open the way for future studies.
Estudo anat mico da via de acesso suprapatelar lateral para a haste intramedular bloqueada na fratura da tíbia Anatomical study on the lateral suprapatellar access route for locked intramedullary nails in tibial fractures
Italo Scanavini Cerqueira,Pedro Araujo Petersen,Rames Mattar Júnior,Jorge dos Santos Silva
Revista Brasileira de Ortopedia , 2012, DOI: 10.1590/s0102-36162012000200005
Abstract: OBJETIVO: A haste intramedular (HIM) é o padr o ouro no tratamento das fraturas diafisárias da tíbia. Uma das complica es frequentes é a dor no joelho após o procedimento. MéTODOS: Vias alternativas, como a suprapatelar para a introdu o da haste como op o para evitar a dor no joelho no período pós-operatório tardio, têm sido estudadas. A quest o é se nesta nova via ocorre alguma les o às estruturas intra-articulares do joelho. RESULTADOS: Este estudo analisa a via suprapatelar e o risco para as estruturas adjacentes através da sua reprodu o em 10 joelhos de cinco cadáveres. CONCLUS O: Foi visto facilidade para a localiza o do ponto de entrada por esta via, lesando apenas a gordura de Hoffa. Em três dos nossos casos houve les o da superfície condral, sendo um obstáculo de difícil transposi o e indicando necessidade de fabrica o de material específico para minimizar a les o das estruturas intra-articulares por essa via. OBJECTIVE: Intramedullary nails are the gold standard for treating tibial shaft fractures. Knee pain is a frequent complication after the procedure. Alternative routes such as the suprapatellar approach for nail insertion are seen as an option for avoiding late postoperative knee pain. The question is whether this approach might give rise to any injury to intra-articular structures of the knee. METHODS: This study analyzed the suprapatellar approach and the risk to adjacent structures by reproducing it in 10 knees of five cadavers. RESULTS: This approach was seen to make it easy to locate the entry point, with lesions only occurring in the Hoffa fat. In three of our cases, there were lesions of the chondral surface, which is an obstacle that is difficult to overcome. CONCLUSION: There is a need to develop specific material to minimize injury to intra-articular structures when using this route.
Prevalency of Klebsiella pneumoniae and producing Escherichia coli of β-lacta masas of widespread bogey (BLEE), in the Hospital San Jerónimo de Montería
Pedro Javier Martínez Ramos,Paula Andrea Espinal Marín,álvaro Bustos G,Salim Mattar Velilla
MedUNAB , 2005,
Abstract: One of the main problems at the Latin Americanhospitals has been the multiresistant microorganisms thatproduce ESBL. Objectives. To establish resistance phenotypicprofi le of Klebsiella pneumoniae (KP) and Escherichia coli(EC) that produce nosocomial infections at the San JeronimoHospital (HSJ) of Monteria, Colombia and to compare fourmethods for the detection of ESBL. Methods. 60 microorgan-isms, 30 KP and 30 EC isolated of nosocomial patients of HSJwere analyzed; disk diffusion of the National Committee forClinical Laboratory Standards (NCCLS) and the confi rmatorymethods for the detection of ESBL as combination of disk,Etest and MicroScan ESBL were used. Results. ESBLproducers were determined in 14 of 60 (23.3%) isolates, 11of 30 KP (36.6%) and 3 of 30 EC (10%). The disk diffusionprocedure recommended by NCCLS, MicroScan ESBL andEtest ESBL were in agreement about productions andconfi rmation of ESBL (p>0.05). The combined disk methodshowed differences when it was compared with the otherthree methods: the production of ESBL in 9 of 30 (30%) KPand 2 of 30 (6.6%) EC (p <0.05). The strains ESBL producerswere classifi ed in four resistance phenotypes. Conclusions.The study showed a high ESBL producers in KP and EC atthe HSJ. High frequency of ESBL found suggest to restrictthe broad spectrum Beta lactams and the utilization of strictlyhygiene measures for preventing the ESBL dissemination at intra-hospital level.
La muerte, visión humanista
Garam Mattar
Gaceta Médica de Caracas , 2007,
Effect of age on the biomechanical and microcirculatory properties of the skin in healthy individuals and during venous ulceration
Mattar Essam
Indian Journal of Dermatology , 2011,
Abstract: Background: With aging there is alteration of elastic properties of the skin and skin-blood flow. Aim: The purpose of this study was to compare age-related changes in selected biomechanical parameters of the skin (skin hardness, skin extensibility, relaxation time constant, τ) and subcutaneous microcirculatory quality (SMQ) in individuals with and without venous diseases. Materials and Methods: Two groups were studied: the first group was of asymptomatic healthy individuals and the second group included patients with chronic venous insufficiency (CVI) and venous ulceration, without edema. Both groups were subdivided to three age categories (21-40, 41-60 and 61-90 years old). Skin hardness was measured by durometer, extensibility and τ were measured using extensometer and SQM was assessed via postural vasoconstrictive response (LDF). Results: Results showed that skin hardness, extensibility, and τ-values were increased, whereas LDF was decreased in the older groups as compared with younger groups. These changes are attributed to alterations in the skin structure and reduced capillaries density networks. Similar behavior was found in the biomechanical and microcirculatory changes in patients with venous ulceration and CVI, but these changes were more increased further in older patients with venous ulceration as compared with older patients with CVI and that can be attribute to more intense response against tissue injury. Conclusions: Since aging elevated skin hardness and extensibility, but lowered vasoconstrictive response in individuals, with and without, venous diseases, we conclude that aging process is likely to cause an accumulation of damaged skin tissues and that could induce an apparent antigen-driven response that altered skin structure and the subsequent biomechanical properties obtained in this study.
Eden Mattar
Revista PRETEXTO , 2004,
Experiencia En Reconstrucción Mamaria Posterior A La Mastectomía En El Instituto De Oncologia "Luis Razetti" 2000-2004
Revista Venezolana de Oncología , 2006,
Abstract: objectives: analyze the experience with breast reconstruction after mastectomy in a group of patients who received treatment for breast cancer. methods: retrospective review of the medical charts of female patients with a diagnosis of breast cancer who underwent breast reconstruction following mastectomy between january 2000 and december 2004. age, tumor stage, time between radical surgery and breast reconstruction, surgical technique and postoperative complications were registered. results: a total of 146 patients underwent breast reconstruction, with a mean age of 41 years. in 110 patients breast reconstruction was performed with a myocutaneous latissimus dorsi flap (75.3 %) and in 36 patients a rectus anterior abdominal flap was done (24.7 %). in 69.9 % of patients breast reconstruction was done immediately after mastectomy. postoperative complications due to the reconstructive procedure were seen in 30.8 % of patients. the main complication after latissimus dorsi reconstruction was a symptomatic capsular contraction (28.8 %), whereas after a rectus anterior abdominal flap, the abdominal incisional hernia was most commonly observed (13.3 %). conclusions: breast reconstruction after mastectomy is a safe procedure and can be done immediately after mastectomy, employing diverse surgical techniques. adjuvant radiotherapy does not affect significantly the cosmetic results. these procedures offer considerable psychological benefits to the mastectomized patient and can be performed in any tumor stage without notably influencing postoperative outcome
Validation of Calculated Thermal Parameters with Experimental Results in SOFCs  [PDF]
Saeed Ghali, Azza Ahmed, Taha Mattar
Journal of Minerals and Materials Characterization and Engineering (JMMCE) , 2018, DOI: 10.4236/jmmce.2018.62014
Abstract: Eleven steel grades were designed to be used as metallic interconnects for Solid Oxide Fuel Cells (SOFC). Low carbon, high chromium steel with different additives of niobium, vanadium, aluminum, molybdenum, silicon, manganese and titanium were produced. Phase transformation temperatures; eutectoid temperature (Ac1) and temperature at which transformation of ferrite to austenite is completed during heating (Ac3) were measured by L75-76 dilatometer. The influence of the alloying elements on transformation temperatures was analyzed using MATLab. Considering the interaction between different alloying elements two equations for predicting Ac1 & Ac3 were obtained. The obtained Ac1 & Ac3 by these equations showed more compatibility than that obtained by traditional ones. In addition, the coefficients of thermal expansion of these steel grades were detected. The influences of chemical composition and temperature on the thermal expansion coefficient were analyzed; the obtained equations were verified to certain extent by using several kinds of steels. The predicted values were in good accordance with the experimental results which proof the validation of calculation model.
Emotional Intelligence, Attachment and Satisfaction with Romantic Relationships among Young Adults: A Brief Report  [PDF]
Leehu Zysberg, Gal Kelmer, Limor Mattar
Psychology (PSYCH) , 2019, DOI: 10.4236/psych.2019.105044
Abstract: This study tested the roles emotional intelligence (EI) and attachment styles play in accounting for satisfaction with romantic relationships. It was hypothesized that attachment styles will moderate the association between EI and satisfaction. A sample of 175 young adults living in Israel took measures of EI, attachment styles and satisfaction with romantic relationships. Stepwise regression analysis supported the hypotheses: EI at first did not correlate with satisfaction, but once attachment style was introduced into the model, EI showed a positive association with satisfaction, while both measures of avoidance and anxiety (the two axes of attachment styles) showed a negative association with the same measure. The results are discussed in light of existing evidence and future directions for research and practice are mentioned.
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