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Search Results: 1 - 10 of 401282 matches for " M Sadeqi "
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Heritability of Blood Pressure in an Iranian Population
M Saadat,M Sadeqi,DD Farhud,A Bahaoddini
Iranian Journal of Public Health , 2001,
Abstract: The fact that life styles and personal interests, aggregate within families suggests that shared environment in addition to shared bioligical factors could play a role in determining the phenotypic similarity of idividuals living in the same household. It is a major concern of cardiovascular epidemiologists to know how much of the familial aggregation of blood pressure is attributable to shared genes and/or shared family environment. Genetic and environmental influences on blood pressure was examined in a sample representative of the adult population of Shiraz, Fars province, south of Iran. The studied population was the 107 pairs of mother and dauther. Analysis of the data suggest that the genetic heritabilities were estimated to be 0.58,0.30, 0.60 for systolic, diastolic, and mean blood pressure, respectively.
Support functionals and their relation to the Radon-Nikodym property
I. Sadeqi
International Journal of Mathematics and Mathematical Sciences , 2004, DOI: 10.1155/s0161171204205191
Abstract: In this paper, we examine the Radon-Nikodym property and its relation to the Bishop-Phelps theorem for complex Banach spaces. We also show that the Radon-Nikodym property implies the Bishop-Phelps property in the complex case.
MR Image Segmentation of Patients’ Brain Using Disease Specific a Priori Knowledge
Hassan Tavakkoli & Ali Sadeqi
International Journal of Biometric and Bioinformatics , 2012,
Abstract: Segmentation of high quality brain MR images using a priori knowledge about brain structuresenables a more accurate and comprehensive interpretation. Benefits of applying a prioriknowledge about the brain structures may also be employed for image segmentation of specificbrain and neural patients. Such procedure may be performed to determine the disease stage ormonitor its gradual progression over time. However segmenting brain images of patients usinggeneral a priori knowledge which corresponds to healthy subjects would result in inaccurate andunreliable interpretation in the regions which are affected by the disease. In this paper, atechnique is proposed for extracting a priori knowledge about structural distribution of differentbrain tissues affected by a specific disease to be applied for accurate segmentation of thepatients’ brain images. For this purpose, extracted a priori knowledge is gradually represented asdisease specific probability maps throughout an iterative process, and then is utilized in astatistical approach for segmentation of new patients’ images. Experiments conducted on a largeset of images acquired from patients with a similar neurodegenerative disease implied success ofthe proposed technique for representing meaningful a priori knowledge as disease specificprobability maps. Promising results obtained also indicated an accurate segmentation of brainMR images of the new patients using the represented a priori knowledge, into three tissueclasses of gray matter, white matter, and cerebrospinal fluid. This enables an accurate estimationof tissues’ thickness and volumes and can be counted as a substantial forward step for morereliable monitoring and interpretation of progression in specific brain and neural diseases.
A Domain-Theoretic Bishop-Phelps theorem
Ali Hassanzadeh,Ildar Sadeqi,Asghar Ranjbari
Mathematics , 2014,
Abstract: In this paper, the notion of c-support points of a set in a semitopological cone is introduced, and it's shown that any nonempty convex Scott closed bounded set has a c-support point in a cancellative bd-cone under certain condition. We also prove the Bishop-Phelps type theorem for cancellative continuous locally convex wd-cone.
Palindrome Recognition In The Streaming Model
Petra Berenbrink,Funda Ergün,Frederik Mallmann-Trenn,Erfan Sadeqi Azer
Computer Science , 2013,
Abstract: In the Palindrome Problem one tries to find all palindromes (palindromic substrings) in a given string. A palindrome is defined as a string which reads forwards the same as backwards, e.g., the string "racecar". A related problem is the Longest Palindromic Substring Problem in which finding an arbitrary one of the longest palindromes in the given string suffices. We regard the streaming version of both problems. In the streaming model the input arrives over time and at every point in time we are only allowed to use sublinear space. The main algorithms in this paper are the following: The first one is a one-pass randomized algorithm that solves the Palindrome Problem. It has an additive error and uses $O(\sqrt n$) space. The second algorithm is a two-pass algorithm which determines the exact locations of all longest palindromes. It uses the first algorithm as the first pass. The third algorithm is again a one-pass randomized algorithm, which solves the Longest Palindromic Substring Problem. It has a multiplicative error using only $O(\log(n))$ space. We also give two variants of the first algorithm which solve other related practical problems.
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.

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