Mecanismo de acción. 3. Prasugrel: >75 años, apoplegía, personas <60kg e insuficiencia renal. - Ticlopidina. - Clopidogrel. - Prasugrel. similar, la enoxaparina iniciada a principios del embarazo en mujeres con Por ahora, se desconoce el mecanismo de acción de la HBPM. Tiene dos mecanismos de acción, unión de un metabolito M1 a receptores μ- opioides e inhibición débil de la Su mecanismo de acción es a través de la inhibición del canal de óxido nítrico y mediado por la Enoxaparina. Solución.

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Collective dose estimation in Portuguese population due to medical exams of diagnostic radiology and nuclear medicine; Estimativa da dose coletiva na populacao portuguesa devido a exames medicos de radiologia de diagnostico e de medicina nuclear. Instituto Superior Tecnico; Sousa, M. In order to assess the exposure of the Portuguese population to ionizing radiation due to medical examinations of diagnostic radiology and nuclear medicine, a working group, consisting fnoxaparina 40 institutions, public and private, was created to evaluation the coletive dose in the Portuguese population in This work was conducted in collaboration with the Dose Datamed European consortium, which aims to assess the exposure of the European population to ionizing radiation due to accin diagnostic radiology examinations most frequent in Europe the ‘TOP 20’ and nuclear medicine examinations.

We hope that this work can be a starting point to bridge the persistent lack of studies in the areas referred to in Portugal, and to enable the characterization periodic exposure of the Portuguese population to ionizing radiation in the context of mecaniwmo applications.

In the attempt to improve microbiological food safety, a method that has been hardly studied is the irradiation. Subsequently they were exposure to doses of 1. Chicken meatballs were exposed to doses 3. The ionizing radiation originated from electron beam was not effective in the conditions applied in this research.

The commercial chicken meatballs prepared with chicken meat, mixed up with soy protein, seasoning and anti-oxidants additives did not loose their sensorial quality when exposure to doses of 3.

Determination of the frequency of polymorphisms in genes related to the genome stability maintenance of the population residing at Monte Alegre, PA Brazil municipality; Determinacao da frequencia de polimorfismos em genes relacionados a manutencao da estabilidade do genoma na populacao residente no municipio de Monte Alegre, PA.

The human exposure to ionizing radiation coming from natural sources is an inherent feature of human life on earth, for man and all living things have always been exposed to these sources.

Medicinas – Substancias Activas y Contraindicaciones.

Ionizing radiation is a known genotoxic agent which can affect the genomic stability and genes mexanismo to DNA repair may play a role when they have committed certain polymorphism. And the genotype frequencies of individuals for the three genes were These values are similar to those found in previous studies. The influence of these polymorphisms, which are involved in DNA repair and consequent genotoxicity induced by radiation depends on dose and exposure factors such as smoking, which is statistically a factor in public health surveillance in the region.

This study gathered information and molecular epidemiology in Monte Alegre, that help to characterization of local population.

Efeito de doses de paclobutrazol na cultura do alho. Directory of Open Access Journals Sweden. Utilizou-se o delineamento experimental de blocos ao acaso, com quatro doses de paclobutrazol 0,1.

Evaluation of 1cm dose equivalent rate using a Na I Tl scintilation spectrometer. A method for evaluating 1 cm dose equivalent rates from a enoxaparlna height distribution obtained by a Weak leakage radiation from nuclear facilities were also measured and dose equivalent conversion factor and effective energy of leakage radiation were evaluated from 1 enoxaparnia dose equivalent rate and exposure rate.

Measurement of the relationship of 24 Na activity and the received neutron dose. In cases of criticality accidents it is required a fast dosimetric system that allows to evaluate the doses of the personnel involved.

Hemostasia,coagulacion y heparinas by Juan Carlos Garcia de Paredes on Prezi

The reaction n,y with sodium presented in the body 23 Nagenerates 24 Nathat emits two gamma of KeV and KeV that can be measured using a whole body counter. The experienced were carried out with the irradiation of Cf of a phantom with a solution of Na Cl in water. After the irradiation it was measured the 24 Na activity in the whole body counter, which has a HPGe detector previously calibrated in energy and efficiency.


Considering the correction by decay, the quantity of 23 Na presented in the body of an adult and elimination curve of 24 Nait was established a coefficient of neutronic doses by unity of activity of 24 Na measured in the whole body counter.

This method is useful for the retrospective estimation of the dosesas well as to carry out a radiological sorting in case of criticality. Radiation crosslinking of CMC- Na at low dose and its application as substitute for hydrogel. The slight radiation-crosslinked CMC- Na as a substitute for hydrogel was prepared by gamma irradiation below gelation dose.

The effects of various parameters such as absorbed doseconcentration of inorganic salts, pH, swelling temperature and swelling time on the swelling ratio in water were investigated in detail.

This kind of slight crosslinked CMC- Na showed good water absorption below 60 deg. C, whereas, it became solution when heated up to 70 deg. Such CMC- Na gel is different from the true gel that is insoluble in boiled water; nevertheless, it can be used as hydrogel at room temperature and produced at low dose.

Due to its low cost, it might be useful for its application in agriculture or others. Estimativa de consumo de sodio pela populacao brasileira, Instrumentos em Lingua Brasileira de Sinais para avaliacao da qualidade de vida da populacao surda. Combined radiochemotherapy RCT for gastric cancer with three-dimensional conformal radiotherapy 3D-CRT results in ablative doses to the upper left kidney, while image-guided intensity-modulated radiotherapy IG-IMRT allows kidney sparing despite improved target coverage.

Renal function in long-term gastric cancer survivors was evaluated with 3T functional magnetic resonance imaging MRI including diffusion-weighted imaging DWI and 23 Na imaging.

Five healthy volunteers and 13 patients after radiotherapy were included: Late toxicity was evaluated based on CTC criteria, questionnaire, and creatinine values. Corticomedullary [ 23 Na ] gradients and [ 23 Na ] differences after WL were determined.

No major morphological alteration was detected in any patient. All participants presented a corticomedullary [ 23 Na ] gradient. No participants showed clinical renal. Crystal growth and thermoluminescence response of Na Zr2 PO4 3 at high gamma radiation doses. This work describes the synthesis and characterization of Na Zr 2 PO 4 3. The stability of this material under high doses of gamma radiation was investigated in the range of 10—50 MGy. Samples of unaltered and gamma irradiated Na Zr 2 PO 4 3 were characterized by X-ray diffraction, infrared spectroscopy, scanning electron microscopy, energy dispersive X-ray spectroscopy, and thermoluminescence.

The results showed that while functional groups were not affected by the gamma irradiation, morphology changes were observed with increasing doses of gamma irradiation. The morphology of the non-irradiated compound is agglomerated flakes; however, irradiation at 10 MGy splits the flakes inducing the formation of well-defined cubes.

Gamma irradiation induced the crystal size of the Na Zr 2 PO 4 3 to grow. The heat treatment K of samples irradiated at 50 MGy resulted in the recovery of the original morphology. Furthermore, the thermoluminescence analysis of the irradiated compound is reported. Application of the dose rate spectroscopy to the dose -to-curie conversion method using a Na I Tl detector.

Dose rate spectroscopy is a very useful method to directly calculate the individual dose rate from the converted energy spectrum for the dose rate using the G-factor which is related to the used detector response function. A DTC conversion method for the estimation of the radioactivity based on the measured dose rate from the radioactive materials can then be modified into a simple equation using the dose rate spectroscopy.

In addition, the linearity about the results from the modified DTC conversion method was also estimated by increasing the distance between source positions and a detector to confirm the method validation in the energy, dose rate, and distance range of the gamma nuclides.

Uncertainty analysis accioh the determination of absorbed dose in water by Fricke chemical dosimetry; Analise das incertezas na determinacao da dose absorvida na agua por dosimetria quimica Fricke.

This work studies the calculations of uncertainties and the level of confidence that involves the process for obtaining the dose absorbed in water using the method of Fricke dosimetry, developed at Laboratorio de Ciencias Afcion LCR. Measurements of absorbance of samples Fricke, irradiated and non-irradiated is going to use in order to calculate the respective sensitivity coefficients, along with the expressions of the calculation of Fricke dose and the absorbed dose in water.


Those expressions are used for calculating the others sensitivity coefficients from the input variable. It is going to use the combined uncertainty and the expanded uncertainty, with a level of confidence of Effect of variable doses of ultraviolet radiation This paper enoxqparina the thermoluminescence TL glow curves of Na Cl: Ca T phosphors to various doses of TLD grade Na Cl: Ca T material was obtained by crystallization from solution and was subsequently annealed at degrees C for 2 h, followed by sudden quenching.

It was observed that the phosphor exhibits a dominant peak around degrees C along with a weak peak at lower temperature. The high-temperature peak Peak II is found to grow linearly with the increase in UV dose in the range of 10 2 to 10 6 J m Since the nature of the glow curves under the influence of different doses remains more or less identical, it is believed that the phosphor does not undergo radiation damage and displays high intrinsic TL around Peak II.

Examination of the system for fundamental dosimetry requirements shows that it can be used in enxaparina work at Thermoluminescence of Li Na So4: TI after exposure to radiation doses from electrons of different energies. Lithium sodium sulphate doped by rare impurities Li Na SO 4: TI has been locally prepared.

Its Thermoluminescence properties TL have been performed from room temperature up to degree C. The mfcanismo were irradiated by electrons of different energies 5, 7, 9 and 13 MeV.

These samples were exposed to different duration to attain different radiation doses. It has been observed that the glow curves are consisted of four glow peaks at 75,and degree C respectively.

The first peak showed a linear dependence with electron radiation doses and can be used in radiation measurement. The irradiated impurities Li Na SO 4: The obtained results will explore the probability of using such system double sulphates doped by rare earth impurities in the field of radiation measurements.

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Total persons JCO employees and contractor, public member, fire fighters, etc. Application of the dose conversion factor for a Na I Tl detector to the radwaste drum assay. The dose -to-curie DTC conversion method has been known that there could be extremely high uncertainty associated with establishing the radioactivity of gamma emitters in a drum. However, the DTC conversion method is still an effective assay method to calculate the radioisotope inventory because of the simple and easy procedures to be applied.

In order to make the DTC conversion method practical, numerous assumptions and limitations placed on its use. These assumptions and limitations are related to the dose rate measurement and the relative abundance of gamma emitters in a drum. However, these two variables were generally obtained from the different detection mechanisms even using the different radwaste each other. Unfortunately, that expanded the limitation of using the DTC conversion method. In order to obtain two variables in a drum to be assayed at once, the dose conversion factor for a Na I Tl detector was first calculated from the MCNP code.

The pulse height spectrum from a simulated drum inserted into a standard source was measured by a Na I Tl detector, and then, two variables were calculated from the dose conversion factor and the net count rate of detected gamma emitters in the pulse height spectrum. Calculation of absorbed dose in water by chemical Fricke dosimetry; Calculo de dose absorvida na agua por dosimetria quimica Fricke. Rodrigues, Adenilson Paiva, E-mail: Full Text Available Nitrogen fertilization is an important step for watermelon Citrullus lanatus production due to its influence over yield, fruit quality, and disease severity.

Currently, the gummy stem blight Didymella bryoniae and the downy mildew Pseudoperonospora cubensis can be taken as the most important watermelon diseases, since they impose severe impairment to the crop.