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OALib Journal期刊

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An Epidemiological Study of Accidents in Teheran Iran
Ezzatollah Mahboubi
Acta Medica Iranica , 1963,
Abstract: In order to study the epidemiology of accidents in Tehran City, the author has collected and analysed records of more than 25,000 accident cases for the period 1960-61 from all available sources such as newspaper rapportages,nine major hospitals of Tehran, Forensic Medicine Department of Ministry of Justice, Vital Statistics Department of Ministry of Health, Labors' Insurance Organization, etc. Approximately 1400 deaths and 17000 severe injuries are accident-induced annually in Tehran and accidents are in the sixth place, as causes of death (=6.7%). They rank first as the pause of deaths for the age group 5-45 years (=23.8%) and fourth for the age group 1-44. (=9. 6%). The distribution of accident types is as follows:- The distribution of accident types is as follows:-"n1. Motor vehicle accidents 27/8%"n2. Other transport accidents 3.7%"n3. Drowning 19.6%"n4. Falls and builidng collapses 16.8%"n5. Burns (all sorts) 12.4%"n6. Poisoning 8.8%"n7. Accident caused by electricity 2.6%"n8.all other accident 8.3%"nVarious epidemiological aspects of these accidents and an analysis"nof fights, suicides and murders are given in the body of the paper
Regularity of the density for a stochastic heat equation
Pejman Mahboubi
Mathematics , 2011,
Abstract: We study the smoothness of the density of the solution to the nonlinear heat equation u_t=Lu(t,x)+\sigma(u(t,x))W on a torus with a periodic boundary condition, where L is the generator of a Levy process on the torus, and W is white noise. We use Malliavin calculus techniques to show that the law of the solution has a density with respect to the Lebesgue measure for all t >0 and x in R.
Insecticidal Activity of the Essential Oil Isolated from Azilia eryngioides (Pau) Hedge et Lamond Against Two Beetle Pests
Ebadollah,Asgar; Mahboubi,Mohaddese;
Chilean journal of agricultural research , 2011, DOI: 10.4067/S0718-58392011000300010
Abstract: a large number of plant essential oils have been used against diverse insect pests since they, unlike conventional pesticides, present no risk to humans and the environment. this study was conducted to determine the toxicity of azilia eryngioides (pau) hedge et lamond (apiaceae) essential oil against 1- to 7-d-old sitophilus granarius (l.) (curculionidae) and tribolium castaneum (herbst) (tenebrionidae) adults. the essential oil was obtained from aerial parts of the plant using a clevenger apparatus and analyzed by gas chromatography and mass spectrometry. the major constituents of the oil were α-pinene and bornyl acetate. fumigation bioassays revealed that a. eryngioides oil had a strong insecticidal activity on adult test insects that were exposed to 37.03, 74.07, 111.11, and 148.14 μl l-1 to estimate mean lethal time (lt50) values. mortality increased as concentration and exposure time increased, and reached 100% at the 39-h exposure time and concentrations higher than 111.11 μl l-1. another experiment was designed to determine the mean lethal concentration at the 24-h exposure time (lc50)-, and these values indicated that s. granarius was more susceptible than t. castaneum. it can be concluded that the essential oil of a. eryngioides has potential against two stored-product pests, s. granarius and t. castaneum.
Chemical Composition and Antimicrobial Activity of Satureja Hortensis and Trachyspermum Copticum Essential Oil
M Mahboubi,N Kazempour
Iranian Journal of Microbiology , 2011,
Abstract: Background and Objectives: The aim of this study was to evaluate the chemical composition and antimicrobial activity of Satureja hortensis and Trachyspermum copticum essential oils against different kinds of microorganisms in vitro.Material and Methods: The antimicrobial activity was evaluated by micro broth dilution assay and analysis of essential oils chemical composition by GC and GC/MS analysis.Results: Thymol, p-cymene, γ-terpinene and carvacrol were the main components of S. hortensis oil while thymol, γ-terpinene, and o-cymene were the major components of T. copticum oil. Two essential oils exhibited strong antimicrobial activity but the antimicrobial activity of T. copticum oil was higher than that of S. hortensis oil."nConclusion: Thymol as a main component of oils plays an important role in antimicrobial activity.
Antimicrobial activity of Artemisia sieberi essential oil from central Iran
M Mahboubi,N Farzin
Iranian Journal of Microbiology , 2009,
Abstract: Background and objectives: The Artemisia genus of Asteraceae family is represented by 34 species in Iran. Artemisia sieberi grows wild in different regions of Iran and grows in desert and semi- desert climate and has forage value for animals and also medicinal properties for humans. In this study we examined the antimicrobial effects of A. sieberi."nMaterials and Methods: The antimicrobial activity of A. sieberi essential oil was evaluated against different microorganisms including Gram positive bacteria, Gram negative bacteria, yeast and fungi by disc diffusion method and micro broth dilution assay."nResults: The oil with main components of α- thujone, β- thujone and camphor showed antimicrobial activity against dif ferent microorganisms with varying types of pathogens. Gram positive bacteria and fungi were more sensitive than Gram negative ones. Among Gram positive bacilli, Listeria monocytogenes and Bacillus cereus and among Gram positive cocci, Streptococcus mutans were more sensitive than others."nConclusion:The antimicrobial properties of this oil showed that the A. sieberi essential oil has good potential use in the food and cosmetic industry.
The antimicrobial activity of essential oil from Perovskia abrotanoides karel and its main components
Mahboubi M,Kazempour N
Indian Journal of Pharmaceutical Sciences , 2009,
Abstract: In Iranian folk medicine, Perovskia abrotanoides is used for treatment of leishmaniasis. These patients may develop secondary infections with opportunistic microorganisms. Therefore, the antimicrobial activity of essential oil from aerial part of P. abrotanoides and its main components was evaluated against different microorganisms. Disc diffusion and broth micro dilution assays were used for in vitro antimicrobial screening. The antibacterial activity of this oil and main components on viability of S. aureus was determined. The oil showed antimicrobial activity against Candida albicans and Gram positive bacteria especially Staphylococcus aureus with zone inhibitions and minimal inhibitory concentration values in the range of 7.6 to 29 mm and 2 to 8 μl/ml respectively, whereas the least susceptible were Aspergillus niger and Gram negative bacteria. In viability test, the results showed that the antimicrobial activity of 1,8-cineole was more than that of α-pinene and camphor but after 60 min this effect gradually decreased only for 1,8-cineole and ultimately the antibacterial activity of camphor was more than that of α-pinene. 1,8-cineole had weak antimicrobial activity against all of the tested microorganisms. Hence the use of P. abrotanoides oil could be useful in fighting secondary infections in leishmaniasis especially against S. aureus.
An introduction to small scale reflection in Coq
Georges Gonthier,Assia Mahboubi
Journal of Formalized Reasoning , 2010,
Abstract: This tutorial presents the SSReflect extension to the Coq system. This extension consists of an extension to the Coq language of script, and of a set of libraries, originating from the formal proof of the Four Color theorem. This tutorial proposes a guided tour in some of the basic libraries distributed in the SSReflect package. It focuses on the application of the small scale reflection methodology to the formalization of finite objects in intuitionistic type theory.
Insecticidal Activity of the Essential Oil Isolated from Azilia eryngioides (Pau) Hedge et Lamond Against Two Beetle Pests Actividad Insecticida del Aceite Esencial Aislado de Azilia eryngioides (Pau) Hedge et Lamond contra Dos Escarabajos Plaga
Asgar Ebadollah,Mohaddese Mahboubi
Chilean Journal of Agricultural Research , 2011,
Abstract: A large number of plant essential oils have been used against diverse insect pests since they, unlike conventional pesticides, present no risk to humans and the environment. This study was conducted to determine the toxicity of Azilia eryngioides (Pau) Hedge et Lamond (Apiaceae) essential oil against 1- to 7-d-old Sitophilus granarius (L.) (Curculionidae) and Tribolium castaneum (Herbst) (Tenebrionidae) adults. The essential oil was obtained from aerial parts of the plant using a Clevenger apparatus and analyzed by gas chromatography and mass spectrometry. The major constituents of the oil were α-Pinene and bornyl acetate. Fumigation bioassays revealed that A. eryngioides oil had a strong insecticidal activity on adult test insects that were exposed to 37.03, 74.07, 111.11, and 148.14 μL L-1 to estimate mean lethal time (LT50) values. Mortality increased as concentration and exposure time increased, and reached 100% at the 39-h exposure time and concentrations higher than 111.11 μL L-1. Another experiment was designed to determine the mean lethal concentration at the 24-h exposure time (LC50)-, and these values indicated that S. granarius was more susceptible than T. castaneum. It can be concluded that the essential oil of A. eryngioides has potential against two stored-product pests, S. granarius and T. castaneum. Una gran cantidad de aceites esenciales de plantas se han utilizado como agentes de control biológico contra diversos insectos plaga, ya que no presentan riesgo para los seres humanos y el medio ambiente, a diferencia de los pesticidas convencionales. Se determinó la toxicidad del aceite esencial de Azilia eryngioides (Pau) Hedge et Lamond (Apiaceae) contra adultos de 1 a 7 días de edad de Sitophilus granarius (L.) (Curculionidae) y Tribolium castaneum (Herbst) (Tenebrionidae). El aceite esencial se obtuvo de las partes aéreas de la planta utilizando un aparato de Clevenger y se analizó por cromatografía de gases por espectrometría de masas. Los principales componentes del aceite fueron α-pineno y acetato de bornilo. El aceite de A. eryngioides tuvo una fuerte actividad insecticida sobre los insectos experimentales. Los insectos adultos fueron expuestos a concentraciones de 37,03; 74,07; 111,11 y 148,14 μL L-1 para estimar el tiempo letal medio (LT50). La mortalidad aumentó con el aumento de concentración y el tiempo de exposición. La mortalidad de ambas especies alcanzó 100% a concentraciones superiores a 111,11 μL L-1 y 39 h de exposición. Otro experimento, dise ado para determinar la concentración letal media en 24 h de exposición (CL50),
Formal proofs in real algebraic geometry: from ordered fields to quantifier elimination
Assia Mahboubi,Cyril Cohen
Computer Science , 2012, DOI: 10.2168/LMCS-8(1:2)2012
Abstract: This paper describes a formalization of discrete real closed fields in the Coq proof assistant. This abstract structure captures for instance the theory of real algebraic numbers, a decidable subset of real numbers with good algorithmic properties. The theory of real algebraic numbers and more generally of semi-algebraic varieties is at the core of a number of effective methods in real analysis, including decision procedures for non linear arithmetic or optimization methods for real valued functions. After defining an abstract structure of discrete real closed field and the elementary theory of real roots of polynomials, we describe the formalization of an algebraic proof of quantifier elimination based on pseudo-remainder sequences following the standard computer algebra literature on the topic. This formalization covers a large part of the theory which underlies the efficient algorithms implemented in practice in computer algebra. The success of this work paves the way for formal certification of these efficient methods.
Sequence and Biostratigraphy of Lower Cenozoic Succession in the Kopet-Dagh Basin, NE of Iran  [PDF]
Batool Rivandi, Mohammad Vahidinia, Mehdi Nadjafi, Assadolah Mahboubi, Abbas Sadeghi
Open Journal of Geology (OJG) , 2013, DOI: 10.4236/ojg.2013.33028
Abstract:

The main purpose of this paper is the sequence stratigraphy and biostratigraphy of lower Tertiary sediments on the base of larger benthic foraminifera in northeast of Iran (Chehel-Kaman Formation). This formation mainly consists of Limestone, dolomite and interbeds of sand, shale and evaporate sediments. Petrographical studies indicate that these sediments may have been deposited on a shallow carbonate platform ramp and consist of 4 carbonate lithofacies (15 subfacies). These lithofacies may have been deposited in open marine, shoal, lagoon and tidal flat environmental conditions. Sequence stratigraphy analysis led to identification of 4 third-order depositional sequences, bounded by type 2 (within the top of the underlying Pestehleigh Formation) and type 1 sequence boundaries (paleosol). Interpreted sea level curve in this basin can be relatively correlated with global curves during Paleocene time and a with a sea-level fall occurred in the latest Paleocene, followed by a rise in the earliest Eocene. Biostratigraphy study led to the identification of 32 larger benthic Foraminifera genera. The Paleocene/Eocene boundary has been probably recorded as a thin red paleosol horizon (~10 - 15 cm).

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