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Search Results: 1 - 10 of 646 matches for " Muktar; Sulaiman "
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Identificación de los sitios de cría de Anopheles sp. durante parte de la estación seca en el estado de Jigawa, Nigeria Identification of breeding sites of Anopheles sp. during part of the dry season in Jigawa, Nigeria
María del Carmen Marquetti,Lázara Rojas,Muktar Mohd Birniwa,Haruna U. Sulaiman
Revista Cubana de Medicina Tropical , 2007,
Abstract: Se llevó a cabo un estudio en todo el estado de Jigawa en la república de Nigeria durante noviembre-diciembre, parte de la estación de seca; donde la malaria es una de las principales causas de morbilidad y mortalidad, especialmente entre los ni os menores de 5 a os y las mujeres embarazadas. Este estado presenta 2 estaciones climáticas una seca de octubre a mayo y otra de lluvia de junio a septiembre. Se muestreó un total de 112 cuerpos de agua, solo 18 en 9 gobiernos locales resultaron positivos a mosquitos. Los sitios de cría identificados para Anopheles correspondieron a campos de arroz, peque o hueco en la tierra, pisadas de animales, peque os estanques, terrenos con pasto inundados y presa de tratamiento de agua, para un total de 10. Contrario a lo que siempre se ha reportado sobre la presencia de Anopheles en aguas limpias, se encontraron criando en aguas con alta polución que contenían heces fecales humanas y desperdicios de basura, representadas por alcantarillas abiertas en las localidades. A study was conducted in the state of Jigawa, Republic of Nigeria, from November to December in the dry season, where malaria is one of the main morbidity and mortality causes particularly in under 5 years-old children and pregnant women. This state had two climate seasons: dry from October to May and rainy from June to September. A total of 112 water bodies were sampled and just 18 in nine local governments were positive to mosquitoes. Breeding sites for Anopheles were rice fields, small holes in land, animal footsteps, small ponds, flooded pasture fields and water treatment dam, among others, to amount to 10 sites. Contrary to what has always been reported about the presence of Anopheles in clean waters, they were also breeding in highly polluted waters containing human faeces and garbage and located in open sewers. Key words: Breeding sites, Anopheles, malaria, Nigeria.
Identificación de los sitios de cría de Anopheles sp. durante parte de la estación seca en el estado de Jigawa, Nigeria
Marquetti,María del Carmen; Rojas,Lázara; Mohd Birniwa,Muktar; Sulaiman,Haruna U.; Adamu,Hassana H.;
Revista Cubana de Medicina Tropical , 2007,
Abstract: a study was conducted in the state of jigawa, republic of nigeria, from november to december in the dry season, where malaria is one of the main morbidity and mortality causes particularly in under 5 years-old children and pregnant women. this state had two climate seasons: dry from october to may and rainy from june to september. a total of 112 water bodies were sampled and just 18 in nine local governments were positive to mosquitoes. breeding sites for anopheles were rice fields, small holes in land, animal footsteps, small ponds, flooded pasture fields and water treatment dam, among others, to amount to 10 sites. contrary to what has always been reported about the presence of anopheles in clean waters, they were also breeding in highly polluted waters containing human faeces and garbage and located in open sewers. key words: breeding sites, anopheles, malaria, nigeria.
Effect of Locally Prepared Compounds on The Resistance of Gum Arabic Wood to Termite Attack
Alkali, U. U.,Muktar, A.
Journal of Environmental Issues and Agriculture in Developing Countries , 2011,
Abstract: The effect of three locally prepared compounds (table salt,potash and tamarind leave extract) and their combinations as preservatives of gum Arabic tree (Acacia senegal) wood against attack by termites was investigated in a 12-week experiment in Yobe State of Nigeria. One hundred and ninety two (192) wood samples of same dimensions were cut from branches of freely growing gum Arabic trees. The samples were carefully debarked to avoid scaring the wood, rinsed in clean water and oven-dried at 105 ± 3oc until constant weight was achieved. The samples were then weighed and measured for length and diameter and then exposed to three termite mounds of similar size housing the same subterranean termite species (Macrotermes bellicosus) for 12 weeks at 3 different locations using a randomised complete block design. At the end of the 12th week, they were removed, rinsed and oven-dried, weighed and inspected for possible damage. Treated wood samples were heavier, longer and had bigger diameters than the untreated control. Location had no significant effect on the extent of termite attack. It was concluded that the compounds in test could have either toxic, repellent or both effects on the insect, thus suggesting that the compounds have high potential as wood preservatives.
A Study on New q-Integral Inequalities  [PDF]
Waad T. Sulaiman
Applied Mathematics (AM) , 2011, DOI: 10.4236/am.2011.24059
Abstract: A q-analog, also called a q-extension or q-generalization is a mathematical expression parameterized by a quantity q that generalized a known expression and reduces to the known expression in the limit . There are q-analogs for the fractional, binomial coefficient, derivative, Integral, Fibonacci numbers and so on. In this paper, we give several results, some of them are new and others are generalizations of the main results of [1]. As well as we give a generalization to the key lemma ([2], lemma 1.3).
New Types of Q-Integral Inequalities  [PDF]
Waadallah T. Sulaiman
Advances in Pure Mathematics (APM) , 2011, DOI: 10.4236/apm.2011.13017
Abstract: Several new q-integral inequalities are presented. Some of them are new, One concerning double integrals, and others are generalizations of results of Miao and Qi [1]. A new key lemma is proved as well.
On Hilbert’s Integral Inequality and Its Applications  [PDF]
Waad T. Sulaiman
Applied Mathematics (AM) , 2011, DOI: 10.4236/am.2011.23045
Abstract: The main result of this paper is presented as follows Let h is homogeneous and symmetric of degree and Then where provided the integrals on the RHS do exists. Some other special cases are also deduced
Several Ideas on Some Integral Inequalities  [PDF]
Waadallah T. Sulaiman
Advances in Pure Mathematics (APM) , 2011, DOI: 10.4236/apm.2011.13014
Abstract: Several new integral inequalities are presented via new ideas.
Refinements to Hadamard’s Inequality for Log-Convex Functions  [PDF]
Waadallah T. Sulaiman
Applied Mathematics (AM) , 2011, DOI: 10.4236/am.2011.27120
Abstract: In this paper we show that a log-convex function satisfies Hadamard's inequality, as well as we give an extension for this result in several directions.
Development of High Torque and High Power Density Hybrid Excitation Flux Switching Motor for Traction Drive in Hybrid Electric Vehicles  [PDF]
Erwan Sulaiman, Takashi Kosaka
Energy and Power Engineering (EPE) , 2013, DOI: 10.4236/epe.2013.57048
Abstract:

This paper presents design feasibility study and development of a new hybrid excitation flux switching motor (HEFSM) as a contender for traction drives in hybrid electric vehicles (HEVs). Initially, the motor general construction, the basic working principle and the design concept of the proposed HEFSM are outlined. Then, the initial drive performances of the proposed HEFSM are evaluated based on 2D-FEA, in which the design restrictions, specifications and target performances are similar with conventional interior permanent magnet synchronous motor (IPMSM) used in HEV. Since the initial results fail to achieve the target performances, deterministic design optimization approach is used to treat several design parameters. After several cycles of optimization, the proposed motor makes it possible to obtain the target torque and power of 333 Nm and 123 kW, respectively. In addition, due to definite advantage of robust rotor structure of HEFSM, rotor mechanical stress prediction at maximum speed of 12,400 r/min is much lower than the mechanical stress in conventional IPMSM. Finally, the maximum torque and power density of the final design HEFSM are approximately 11.41 Nm/kg and 5.55 kW/kg, respectively, which is 19.98% and 58.12% more than the torque and power density in existing IPMSM for Lexus RX400h.

Growth Pattern of Social Media Usage in Arab Gulf States: An Analytical Study  [PDF]
Sulaiman Reyaee, Aquil Ahmed
Social Networking (SN) , 2015, DOI: 10.4236/sn.2015.42003
Abstract: The impact of SNSs is tremendous on every aspect of life and people irrespective of region, gender and age are using it to get connected with their families and friends around the globe. This study aims to highlight the highly used SNSs across the Arab Gulf States comprising Iraq, Kuwait, United Arab Emirates, Oman, Qatar, and Saudi Arabia. The database of Stat Counter (http://gs.statcounter.com) was selected for tracing the use and growth of SNSs in this region. The findings show that the three most used SNSs in the Arab Gulf region are: Facebook, Twitter and YouTube. It is observed that Facebook is the leading social networking site used in the region until now, but Twitter is fast gaining market. Twitter is becoming popular among users and giving a tough competition to Facebook in almost all countries of the region except Iraq. In 2013, it has moved to 1st position in Saudi Arabia and Kuwait, replacing Facebook. However, in some countries like the UAE and Qatar, Facebook is still going strong. The paper concludes that the intensive use of social media among citizens’ of the Arab Gulf countries indicates that the internet has the potential to be a multivocal platform through which every segment of the society can have their voices heard. With limited availability of published literature in the field pertaining to the usage of social media by the people of the Arab Gulf countries, the paper aims to understand the practice, implication and importance of social media networks in this Muslim dominated region.
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