oalib

OALib Journal期刊

ISSN: 2333-9721

费用:99美元

投稿

时间不限

2018 ( 2 )

2017 ( 577 )

2016 ( 949 )

2015 ( 13696 )

自定义范围…

匹配条件: “M Panahkhahi” ,找到相关结果约399796条。
列表显示的所有文章,均可免费获取
第1页/共399796条
每页显示
Greater Occipital Nerve Block by Bupivacaine/Methyl Prednisolone Vs. Bupivacaine/Normal Saline in Medication Overuse Headache
A Alizade Khatir,M Panahkhahi,A Khage Nasiri,T Ramim
Tehran University Medical Journal , 2012,
Abstract: Background: Medication overuse headaches (MOH) include headaches that last more than 15 days a month and usually occur after long-term use of analgesic. Most methods of medical treatment are ineffective. In some studies, great occipital nerve block is used to treat the headaches.Methods: This double-blind experimental study was performed in adult patients with MOH who attended Sina Hospital in Tehran from June 2009 to June 2011. Greater occipital nerve (GON) block was done in the two groups of patients by administering a combination of 3 ml of 0.5% bupivacaine and 2 ml of 5% saline or 3 ml of 0.5% bupivacaine and 80 mg of methyl prednisolone. We evaluated headache severity by Visual analog scale (VAS) and recorded days without headache. If patients were taking pain medications, preventive medications were given as usual before and after the injection. Student's t-test was performed for statistical analysis and a P<0.05 was considered significant.Results: Overall, 13 male and 19 female patients with a mean age of 39.88±8.76 years participated in the study. The mean reduction in headache severity one hour after injection was 5.56±1.03 and 4.63±1.92 in the first and second groups, respectively. Average days without headache one month after injection were 8.75 and 4.75 days in the first and second groups, respectively. There were no significant differences between the two groups.Conclusion: Both methods seem to be effective in medication overuse headaches treatment. This finding is important as non-responders to conventional methods will otherwise have a decreased quality of life.
Propacetamol and Morphine in Postoperative Pain Therapy after Renal Transplantation
Mohammad Reza Khajavi,Atabak Najafi,Mehdi PanahKhahi,Reza Shariat Moharari
International Journal of Pharmacology , 2007,
Abstract: The purpose of this study was to assess the analgesic efficacy and complication of intravenous propacetamol, compared with morphine after renal transplantation. In this randomized double blind study, 30 end stage renal disease candidates for renal transplantation from live donors, were divided into two groups: the first group (15 patients) received 2 g of propacetamol (IV), while the other group received 5 mg of morphine (IV). The intensity of pain and the complications were evaluated for 24 h (each 6 h). The mean intensity of pain in the group who received morphine was slightly lower than propacetamol at recovery (10 min after extubation) and 24 h following the operation. However, propacetamol showed significantly less adverse events. The analgesic efficacy of Morphine in controlling post operative pain in time (0) and 24 h following the operation was significantly greater than propacetamol whilst the latter showed less adverse effects during the study period.
Study of Duct Characteristics Deduced from Low Latitude Ground Observations of Day-Time Whistler at Jammu  [PDF]
M. Altaf, M. M. Ahmad
International Journal of Astronomy and Astrophysics (IJAA) , 2013, DOI: 10.4236/ijaa.2013.33032
Abstract:

Propagation characteristics of low latitude whistler duct characteristics have been investigated based on day-time measurements at Jammu. The morphogical characteristics of low latitude whistlers are discussed and compared with characteristics of middle and high latitude whistlers. The Max. electron density (Nm) at the height of the ionosphere obtained from whistler dispersion comes out to be higher than that of the background which is in accordance with the characteristics of whistler duct. The equivalent width is found to be close to the satellite observations and the characteristics of whistler duct in low latitude ionosphere are similar to those in middle and high latitude ionosphere. The width of ducts estimated from the diffuseness of the whistler track observed during magnetic storm is found to lie in the range of 50 - 200 Km.

Review Article: Immobilized Molecules Using Biomaterials and Nanobiotechnology  [PDF]
Magdy M. M. Elnashar
Journal of Biomaterials and Nanobiotechnology (JBNB) , 2010, DOI: 10.4236/jbnb.2010.11008
Abstract: Immobilized molecules using biomaterials and nanobiotechnology is a very interesting topic that touching almost all aspects of our life. It uses the sciences of biology, chemistry, physics, materials engineering and computer science to develop instruments and products that are at the cutting edge of some of today’s most promising scientific frontiers. In this review article, the author based on his experience in this arena has tried to focus on some of the supports for im-mobilization; the most important molecules to be immobilized such as DNA, cells, enzymes, metals, polysaccharides, etc and their applications in medicine, food, drug, water treatment, energy and even in aerospace. He specified a special section on what is new in the arena of supports and technologies used in enzyme immobilization and finally a recommendation by the author for future work with a special attention to up-to-date references.
Using of the generalized special relativity (GSR) in estimating the neutrino masses to explain the conversion of electron neutrinos  [PDF]
M. H. M. Hilo
Natural Science (NS) , 2011, DOI: 10.4236/ns.2011.34044
Abstract: In this work the Generalized Special Relativity (GSR) is utilized to estimate masses of some elementary particles such as, neutrinos. These results are found to be in conformity with experimental and theoretical data. The results obtained may explain some physical phenomena, such as, conversion of neutrinos from type to type when solar neutrino reaches the Earth.
Postischemic Lower Extremity Wounds Treated with and without Negative Pressure Dressing  [PDF]
Naz?mmü?
Surgical Science (SS) , 2012, DOI: 10.4236/ss.2012.37075
Abstract: Background: Vacuum-assisted dressing is a noninvasive closure system of the wound, which makes localized and controlled negative pressure. Its mechanical tension reduces edema, stimulates granulation tissue formation and angiogenesis, and prepares the wound bed for closure. In this study, a patient has been presented, who suffered from serious lower extremity wounds due to arterial emboli, one of her wounds has been treated with vacuum-assisted dressing and the other with conventional dressing to evaluate the efficacy of vacuum-assisted dressing in acute ischemic wounds. Methods: A 65-year-old female patient was admitted to the emergency clinic, due to complaint of severe pain in her right lower extremity which suggested an acute arterial occlusion. She immediately underwent an embolectomy operation; however, a few days later, severe ischemia on the leg and foot became appearant. All of the necrosis was sharply debrided under sterile conditions in the operating room, and then lower leg wound was covered with vacuum-assisted dressing, also calcaneal wound was dressed with silver sulphadiazine. Results: Eighteen days after the first dressing with negative pressure, distal leg wound became ready for closure, whereas, enough granulation tissue over the calcaneal area developed merely thirty-four days later. Calcaneal wound closed spontaneously within fifty-three days. Conclusions: When dealing with this experience, using the negative pressure dressing in patient with severe lower limb wounds following arterial emboli, accelerates wound healing by means of developing the granulation tissue, and rapidly prepares the wound for closure, so it may reduce the risk of amputation.
Laplace Transform Method for Unsteady Thin Film Flow of a Second Grade Fluid through a Porous Medium  [PDF]
M. Ali, M. Awais
Journal of Modern Physics (JMP) , 2014, DOI: 10.4236/jmp.2014.53017
Abstract:

In this article, we have effectively used the Numerical Inversion of Laplace transform to study the time-dependent thin film flow of a second grade fluid flowing down an inclined plane through a porous medium. The solution to the governing equation is obtained by using the standard Laplace transform. However, to transform the obtained solutions from Laplace space back to the original space, we have used the Numerical Inversion of Laplace transform. Graphical results have been presented to show the effects of different parameters involved and to show how the fluid flow evolves with time.

An Integral Collocation Approach Based on Legendre Polynomials for Solving Riccati, Logistic and Delay Differential Equations  [PDF]
M. M. Khader, A. M. S. Mahdy, M. M. Shehata
Applied Mathematics (AM) , 2014, DOI: 10.4236/am.2014.515228
Abstract:

In this paper, we propose and analyze some schemes of the integral collocation formulation based on Legendre polynomials. We implement these formulae to solve numerically Riccati, Logistic and delay differential equations with variable coefficients. The properties of the Legendre polynomials are used to reduce the proposed problems to the solution of non-linear system of algebraic equations using Newton iteration method. We give numerical results to satisfy the accuracy and the applicability of the proposed schemes.

ДОСЛ ДЖЕННЯ АНАЛ ТИЧНОГО МЕТОДУ ОЦ НЮВАННЯ ЙМОВ РНОСТ ПОТЕНЦ ЙНО КОНФЛ КТНИХ СИТУАЦ Й В ПОВ ТРЯНОМУ РУС The study of the analytical method of evaluating the probability of potential conflict situations in air traffic Исследование аналитического метода оценки вероятности потенциально конфликтных ситуаций в воздушном движении
В.M. Василь?в
Proceedings of National Aviation University , 2007,
Abstract: Розглянуто застосування запропонованого ран ше методу оц нювання ймов рност потенц йних конфл кт в для системи керування пов тряним рухом. Досл джено властивост методу, наведено проанал зовано результати комп’ютерного моделювання. Application of the method of potential conflicts probability evaluation offered before for air traffic control system is considered. The properties of the method are investigated, results of computer modeling are represented and analyzed. Рассмотрено применение предложенного ранее метода оценки вероятности потенциальных конфликтов для системы управления воздушным движением. Исследованы свойства метода, приведены и проанализированы результаты компьютерного моделирования.
МОДЕЛЮВАННЯ ТА УПРАВЛ ННЯ В БРОАКУСТИЧНИМ ВИПРОМ НЮВАННЯМ ОДНОР ДНО ПЛАСТИНИ П Д Д Ю ЗОВН ШН Х КОНЦЕНТРОВАНИХ СИЛ Modeling and management vibroacoustic emission homogeneous plate under the action of external forces concentrated Моделирование и управление виброакустическим излучением однородной пла
В.M. Макаренко
Proceedings of National Aviation University , 2009,
Abstract: Подано модель проведено досл дження акустичного випром нювання та поперечного руху прямокутно пластини. Розв’язок отримано на основ р внянь класично теор коливань пластини. Розглянуто в броакустичне випром нювання пластин з в льно обпертими граничними умовами. Як зовн шн збудження використано концентрован гармон чн сили. Встановлено законом рност зм ни звукового випром нювання залежно в д параметр в зовн шн х збуджень. Для перев рки анал тичого п дходу, використаного для розрахунк в, виконано експеримент. Власн частоти коливань в льно пластини, отриман анал тично, сп вв дносяться з результатами експерименту з малою похибкою. The model of rectangular plate acoustic radiation and transverse motion were presented, and its investigation was performed. The solution is received based on classisal plate theory. Vibration response and sound radiation of plates with simply-supported boundary conditions was discussed. Concentrated harmonic forces are used as an external excitation. The general confirmities to the law have been established for the changes of sound radiation, depending on the parameters of external excitations. An experiment was performed for justification of analytical approach, which is used for computations. Eigenfrequencies of free plate oscillations, which are received analytically, are in good agreement with experimental results. Представлены модель и проведены исследования акустического излучения и поперечного движения прямоугольной пластины. Решен
第1页/共399796条
每页显示


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