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Search Results: 1 - 10 of 429 matches for " Neda Noroozi "
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Decomposability in Input Output Conformance Testing
Neda Noroozi,Mohammad Reza Mousavi,Tim A.C. Willemse
Electronic Proceedings in Theoretical Computer Science , 2013, DOI: 10.4204/eptcs.111.5
Abstract: We study the problem of deriving a specification for a third-party component, based on the specification of the system and the environment in which the component is supposed to reside. Particularly, we are interested in using component specifications for conformance testing of black-box components, using the theory of input-output conformance (ioco) testing. We propose and prove sufficient criteria for decompositionality, i.e., that components conforming to the derived specification will always compose to produce a correct system with respect to the system specification. We also study the criteria for strong decomposability, by which we can ensure that only those components conforming to the derived specification can lead to a correct system.
Photocatalytic Removal of Escherichia Coli by ZnO Activated by Ultraviolet-C Light from
Noroozi R
Medical Laboratory Journal , 2012, DOI: http://www.goums.ac.ir/mljgoums/index.php?slc_lang=en&sid=1
Abstract: Background and objectives: There is a great interest in photocatalyticoxidation of contaminants, using ZnO, in recent years. The main objectiveof this research was to study photocatalytic disinfection of E. coli bacteriaas water microbial pollution index, using nanoparticles of ZnO and a UVlamp in a batch reactor.Material and Methods: In this study, the contaminated water sample wasprepared through adding 102 and 103 E. coli bacteria per ml of raw water.The contaminated water entered the photocatalytic oxidation reactor andremoval efficiency of E. coli bacteria in different conditions were studied,including pH (5.5, 7, and 9), time (10, 20, 30, 40, 50 and 60 mins), dose ofnano particles ZnO (0.2,0.4,0.8 and 1 gr/l), number of bacterium (102 and103 per milliliter) and voltage of UV-C lamp, 27 volts. Characterizations ofZnO nano particles were determined using scanning electron microscopeequipped with Energy Dispersive X-ray Analysis (EDX) system and X-raydiffraction (XRD) method.Results: Photocatalytic process efficiency is enhanced by increasingreaction time and dose of nano particles ZnO in the presence of UV lampirradiation. The results show that the best conditions for removal of 102 and103 bacteria per milliliter are obtained from condition including pH of 7,reaction time of 30 mins, 0.8 gr/l doses of nano particles ZnO and 27-volt-UV lamp.Conclusion: The results indicate that the increase of reaction time anddose of nano particles ZnO, in the presence of radiation UV lamp, have themost significant effect on photocatalytic efficiency. Based on the results,photocatalytic can be promising method for removal of E. coli bacteriumfrom drinking water.Keywords: Photocatalytic, E. coli, irradiation UV, ZnO nanoparticles,Aqueous Solution
How should we assess the mechanical properties of lower-limb prosthesis technology used in elite sport?—An initial investigation  [PDF]
Bryce Dyer, Philip Sewell, Siamak Noroozi
Journal of Biomedical Science and Engineering (JBiSE) , 2013, DOI: 10.4236/jbise.2013.62015
Abstract:

Despite recent controversy, it is not yet formally recognised how lower-limb prosthesis should be assessed for their performance. To assist in this process, experiments are undertaken to investigate the linearity, stiffness and assessment of feet based energy return prosthesis technology typically used for elite level high speed running. Through initial investigations, it is concluded that static load testing would not be recommended to specify or regulate energy return prostheses for athletes with a lower-limb amputation. Furthermore, an assessment of energy return technology when loaded under dynamic conditions demonstrates changes in mechanical stiffness due to bending and effective blade length variation during motion. Such radical changes of boundary conditions due to loading suggest that any assessment of lower-limb prosthesis technology in the future should use methods that do not assume linear mechanical stiffness. The research into such effects warrants further investigation in the future.


Generalized Option Betas  [PDF]
Sven Husmann, Neda Todorova
Journal of Mathematical Finance (JMF) , 2013, DOI: 10.4236/jmf.2013.33035
Abstract:

This paper extends the option betas presented by Cox and Rubinstein (1985) and Branger and Schlag (2007). In particular, we show how the beta of the underlying asset affects both an option’s covariance beta and its asset pricing beta. In contrast to Branger and Schlag (2007), the generalized option betas coincide if the options are evaluated according to the CAPM option pricing model of Husmann and Todorova (2011). The option betas are presented in terms of Black-Scholes option prices and are therefore easy to use in practice.

A Brief Review of Histiocytes
N Saljooghi,Z Noroozi
Iranian Journal of Pediatrics , 1995,
Abstract:
Effect of Benzathine Penicillin Injections in Rheumatic Fever Recurrence
B Heydari,Z Noroozi
Iranian Journal of Pediatrics , 1999,
Abstract:
Prevalence of diabetic nephropathy in Mazandaran
Heidari B,Noroozi Z
Tehran University Medical Journal , 1997,
Abstract: Diabetic nephropathy is common in Mazandaran and a significant number of patients under chornic hemodialysis are diabetics. The present study was designed to study the prevalence and predisposing factors of diabetic nephropathy (DN) in Mazandaran. Methods: During a 20 months period from June 1993 through December 1994, 490 (350 female, 140 male) cases of non-insulin dependent diabetes mellitus (NIDDM) were diagnosed according to the criteria of National Diabetes Data Group. DN was diagnosed in 18 (11 male, 7 female) patients with proteinuria of 500 mg or more in a 24-hour urinary sample in at least two separate occasions, and excluding other causes of nephropathy. Results: 3.7 percent of all NIDDM patients had DN, 15+5 years after onset of diabetes. Male patients have higher prevalence of DN (7.8%) than female (2%). Onset of diabetes before 50 years age in male is a risk factor for DN (9.5%) as compared after 50 (4.5%) (P=0.01), in female the prevalence of DN before and after 50 is, 1 and 3.4 percent respectively (P=NS). Conclusions: In Mazandaran DN is not uncommon, it is more common in male patients than female. The age of onset, duration of diabetes and maleness are predisposing factors for DN.
Study of febrile seizure and its relation to low serum sodium levels
Noroozi Z,Khosroshahi N
Tehran University Medical Journal , 1998,
Abstract: Febrile seizure is the most frequent type of seizure in childhood occurring in 2-4% of children under the age of 5. Although pathogenesis of seizure following fever is not well understood, multiple risk factors are known to contribute to its precipitation. One of the possible risk factors which had not been mentioned yet in reference texts and still is in the research phase is a serum sodium level below the normal limits which specially plays a role in the recurrence of febrile seizure. In this descriptive retrospective study records of 400 in-patients cases of primary episodes of febrile seizure in Bahrami children hospital in the years of 1996-1997 were reviewed. 214 (53.5%) cases had serum sodium levels of <135 m.mol/L. The mean serum sodium level for all the cases was 135.28±4.65 m.mol/L which is considerly less than the serum sodium level of 140±0.8 m.mol/L seen in healthy children. There was no significant difference in serum sodium levels different sex and age groups in this patient population
Complications of Gold Sodium Thiomalate Therapy in Rheumatoid Arthritis
B Heidari,Z Noroozi
Tehran University Medical Journal , 2001,
Abstract: To determine the complications of gold sodium thiomalate therapy in rheumatoid arthritis (RA), 32 patients with active RA (27 female, 5 male) treated for a mean period of 28 ? 14 weeks were studied. From these patients, 62.5 (46-79) percent showed at least one drug reaction. Pruritus was the most common complication occurred in 59 (42-76) percents, and was accompanied by skin rush in 37 (15-57) percents of cases. Renal, mucosal and post-injection complication developed, each in 16 (3-29) and percents of patients. Hematologic and pulmonary reaction occurred in 12.5 (1-24) and 9 (1-19) percents of cases respectively. Drug reaction resulted to discontinuation of gold therapy in 19 (5-32) percents of patients. Majority of drug reactions occurred during the first 15 weeks of therapy. In comparison to reports coming from other studies, drug reactions in Iranian patients were more frequent but less severe.
Effect of Neurofeedback on Visual-Spatial Attention in Male Children with Reading Disabilities: An Event-Related Potential Study  [PDF]
Neda Sadeghi, Mohammad Ali Nazari
Neuroscience & Medicine (NM) , 2015, DOI: 10.4236/nm.2015.62013
Abstract:
Recent studies describe a number of difficulties associated with attention deficit in children with reading disabilities. Information about visual-spatial attention mainly arises from studies using event-related potentials (ERPs) during Posner’s spatial cueing paradigm. This study aims to use neurofeedback with a special protocol for treating children with reading disabilities, and moreo-ver, to evaluate visual-spatial attention ability by means of Posner paradigm task and ERPs. The study was conducted in a single subject design in 20 sessions. Participants were 2 male children, aged between 10 - 12 years old, who completed twelve 30-min neurofeedback sessions. Repeated measurements were performed during the baseline, treatment, and post treatment phases. Results showed some improvement in Posner paradigm parameters (correct response, valid and invalid reaction times). Furthermore, grand average ERPs for both of the participants in each of the four conditions (Valid-right, Invalid-right, Valid-left and Invalid-left) were analyzed. The analysis of P3 component showed a reduction in latency, indicating an improvement in the timing of cognitive processes. In addition, the graphs showed a decrease in amplitude level, which meant easier processing than before.
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