Sps jul 2014 (16 resultados)

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -In drug designing programs an essential component of the search for new leadings is the synthesis of molecules, which is a novel yet, resembles known biologically active molecules by virtue of the presence of critical structural features. Certain small heterocyclic molecules act as highly functionalized scaffolds and are known pharmacophores of a number of biologically active and medicinally useful molecules. Numerous heterocyclic derivatives have received considerable attention because of their diverse biological activity. Pyrazoles and their reduced forms pyrazolines and Iso-oxazoline are well known nitrogen containing heterocyclic compounds and various procedures have been developed for their synthesis. The interest of scientists in such compounds has been stimulated by their various promising pharmacological properties and comparison in methods of synthesis. This book will serve as reference materials for many researchers working in the field of Organic Chemistry, Medicinal Chemistry and Pharmaceutical Chemistry. 84 pp. Englisch.…

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The book discusses the hazards and risks of settlements along the West African gas pipeline spanning from Itoki, Ogun state to Badagry in Lagos State. In order to solve this, Descriptive statistic and multivariate statistical method (factor analysis) were used to analysis the data. The results of the factor analysis showed 78.106 percent of total variance of seven principal factors with eigen values equals or greater than unity. Furthermore, the hypothesis tested using the t- test showed that computed t-scores (- 19.273) for pair one, (-52.134) for pair two and (-41.273) for pair three all exceeds the value of t indicated in the table. More so, the ranking of the hazards and risks identified along the pipeline right of way was done by the use of the risk assessment matrix (RAM). The ranking showed high risk on the settlers. The research recommends an aggressive public awareness campaign by the government and the oil and gas companies on the dangers of settling along the pipeline right of way. It also recommends enforcement of the existing oil and gas pipeline laws on adherence to the minimum set back from right of way before sitting structures. 156 pp. Englisch.…

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -In the present work, the analytical study for one of the modern theoretical international models which are used to predict the behavior of transferring radio waves among the transmitting/receiving stations and of affection of these waves by the atmosphere. The analytical study for the application of the REC533 international model has been made in order to reach for the conclusions that enable to forecast the frequencies that can maintain a semi-permanent reliable connection between the transmitting and receiving stations. In this study, Iraq has been adopted generally, whereas, Baghdad was taken specially to be represented as a central point. Since, the capital Baghdad has been adopted to be as a transmitting/receiving station with many stations lying within Iraqi cities and some surrounded Arabian and foreign capitals that place within the Middle East zone. Consequently, the simplified mathematical model has been proposed, which leads to predict the frequencies that can ensure the annual permanent reliable connection for different link distances and orientations. 96 pp. Englisch.…

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This book is on millimetric signal attenuation due to absorption and scattering by rain using both regional estimates of rain rate and different total cross section models with different rain DSD for various rain types in the frequency range of 10 to 100 GHz. The Method of Moments is applied to obtain the DSD models and different extinction coefficients are used for the computation of specific rain attenuation. Theoretical results obtained are then compared with the proposed models as well as other known models for both vertical and horizontal polarization for the various rain rates. Measured and calculated rain attenuation obtained using the Pruppacher-Pitter technique and the Mie Scattering technique are also presented. Incorporation of available DSD data and measured rain rate with the derived scattering amplitude coefficients is then done to estimate the total and specific rain attenuation for the South African region. The depolarization effects on radio signals due to the physical properties of raindrops such as shape, size distribution, refractive index, and canting angle are also addressed. 168 pp. Englisch.…

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -As a teacher for 16 years, I have always been feeling the need for raising qualified teachers in Northern Cyprus. Teachers should be hired and inspected according to the professional teaching standards. Initial teacher training providers should have programs prepared due to the professional teaching standards. Also, teachers' in-service training needs should be programmed using the professional teaching standards. Teachers' should know how to design their ongoing professional development. Being aware of these needs, I decided to propose the professional teaching standards as a national framework in North Cyprus. Using mixed methods required me using both qualitative and quantitative research strategies. Rasch model analysis for analysing the quantitative data was applied for having more valid and reliable results. 256 pp. Englisch. …

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The substituted chalcone and isoxazole are considered to be important synthons due to their versatility towards chemical transformations to useful synthetic intermediates as well as various biological activities. The book focuses on main aspects of chemical reaction, mechanism and applications of synthetic utility. The content is explained in an easy and simple language. It will be a good source of information about fundamental knowledge of organic synthesis of chalcones and isoxazoles as well as reaction path with mechanism to students at undergraduate level, post Graduate level, researchers as well as industrial chemist. 104 pp. Englisch.…

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Due to the reliance on battery, energy consumption of WSNs has always been the most significant concern. In this work, a method which involves the design of a transaction / system-level based SystemC simulation environment for WSNs energy exploration, and the building of a hardware platform for the real world testbed node measurements to calibrate simulation, is therefore employed to guarantee the accuracy of the energy evaluation on WSNs. To accelerate and optimize the evaluation process, a genetic algorithm (GA) based optimization framework is implemented by MATLAB. The optimization framework attached with our SystemC simulation environment can efficiently, automatically and intelligently fine tune thousands of potential solutions to find the most suitable tradeoff between energy consumption and other metrics under multi- scenario / objective conditions. With our designed evaluation tools, elaborate energy consumption of several popular node platform based networks are investigated, and comprehensive energy-saving strategies are also given. Hence, these analysis could help shed some light for developers and researchers who focus on the energy-efficient WSNs design. 328 pp. Englisch.…

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The exchange of sensitive information in many systems over a network can be manipulated by unauthorized access. Opacity is a property to investigate security and privacy problems in such systems. Opacity characterizes whether a secret information of a system can be inferred by an unauthorized user. One approach to verify security and privacy properties using opacity problem is to model the system that may leak confidential information as a discrete event system. We describe and analyze the complexity of opacity in systems that are modeled as a discrete event system with partial observation mapping. We define three types of opacity: strong opacity, weak opacity, and no opacity. Strong Opacity describes the inability for the system s observer to know what happened in a system. On the other hand, No-opacity refers to the condition where there is no ambiguity in the system behavior. 152 pp. Englisch. …

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This book is an exploration of the literary representation of survival and coping strategies during times of socio-political and economic crisis. It investigates how fiction captures the innovative and resilient ways used by the people inhabiting harsh environs during tempestuous, dystopian and trying times; and how they manage to live with hope and positivity through innovation, serendipity and proteanism. The author applied a literary approach informed by three theoretical frameworks - resilience, trauma and chronotope theory. The book contributes to the creation and dissemination of novel and nuanced knowledge on literary theory which coheres with practical issues faced by people; and it challenges often touted Afro-pessimisms. It also contributes to the body of knowledge which seeks to recognise the creative potential of disadvantaged people, as it recognises the innovativeness, malleability, and agency of the ordinary people as represented through fiction.This is a must read for optimists, Afro-bibliophiles, innovators, dreamers, peace lovers, literary theorists, motivational speakers and anyone who has faced and wants to cope with a crisis at a personal or national level. 276 pp. Englisch.…

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The Purpose of this research was to develop tools that would improve understanding of the process of dams, embankment and levee failure mechanism, and reduce the risk of failure. This would be crucial to avoid devastative failures such as hurricane Katrina in 2005, which caused a disaster in southern parts of United State of America. There are more than 14,000 miles of levee only in US, in addition to thousands of miles of dams and levees in Europe, Asia and other parts of the world. These levees are protecting highways, power plants, bridges, etc. Only in US, 881 counties are being protected by the levees and the failure of these levees and dams can be a threat to life of 160 million Americans. The integrity of the national system of levees is therefore a critical matter for different nations. 208 pp. Englisch.…

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The Hope of Education focuses on the expectations that Somalis who came to Melbourne as refugees have for their children s education. It analyses their perceptions of the Somali and Australian education systems and the implications of these for their family s ability to adapt and cope with Australian life. In doing so, it also shows how they use education to reconstruct their world as part of resettlement in Australia. The Hope of Education highlights specific programs and activities that bring parents and teachers together around their child s education to build bridging social capital and optimism about the future. It sets the stage for positive agency at a time when Somali families are coping with trauma, loss and disconnection in an unfamiliar society. Therefore, this book has international application for helping schools and teachers to foster better communication and to create an environment in which families feel welcome and empowered. 344 pp. Englisch.…

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -How to test the validity of using new adsorption pair in adsorption cooling and what is the initial requirements of it. The book is a guide for the researchers in the field of the adsorption.Here you will find new six adsorption pairs and its characteristics (isotherms and kinetics) how to study it and what is the most important in these characteristics. The benefit of using these pairs in adsorption cooling have been presented. 200 pp. Englisch.…

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Extragalactic sources of high-energy cosmic gamma-rays, like blazars and quasars, are usually highly variable and the temporal characteristics of their light curves are key to the understanding of their physics. In order to deal with blazar flares in different parts of electromagnetic spectrum from gamma-rays and X-rays to visible light - we developed a new approach to correlation study based on Monte Carlo simulations and the Fourier convolution. 328 pp. Englisch.…

Taschenbuch. Condición: Neu. This item is printed on demand - Print on Demand Titel. Neuware -The Purpose of this research was to develop tools that would improve understanding of the process of dams, embankment and levee failure mechanism, and reduce the risk of failure. This would be crucial to avoid devastative failures such as hurricane Katrina in 2005, which caused a disaster in southern parts of United State of America. There are more than 14,000 miles of levee only in US, in addition to thousands of miles of dams and levees in Europe, Asia and other parts of the world. These levees are protecting highways, power plants, bridges, etc. Only in US, 881 counties are being protected by the levees and the failure of these levees and dams can be a threat to life of 160 million Americans. The integrity of the national system of levees is therefore a critical matter for different nations.VDM Verlag, Dudweiler Landstraße 99, 66123 Saarbrücken 208 pp. Englisch.…

Taschenbuch. Condición: Neu. This item is printed on demand - Print on Demand Titel. Neuware -In the present work, the analytical study for one of the modern theoretical international models which are used to predict the behavior of transferring radio waves among the transmitting/receiving stations and of affection of these waves by the atmosphere. The analytical study for the application of the REC533 international model has been made in order to reach for the conclusions that enable to forecast the frequencies that can maintain a semi-permanent reliable connection between the transmitting and receiving stations. In this study, Iraq has been adopted generally, whereas, Baghdad was taken specially to be represented as a central point. Since, the capital Baghdad has been adopted to be as a transmitting/receiving station with many stations lying within Iraqi cities and some surrounded Arabian and foreign capitals that place within the Middle East zone. Consequently, the simplified mathematical model has been proposed, which leads to predict the frequencies that can ensure the annual permanent reliable connection for different link distances and orientations.VDM Verlag, Dudweiler Landstraße 99, 66123 Saarbrücken 96 pp. Englisch.…

Taschenbuch. Condición: Neu. This item is printed on demand - Print on Demand Titel. Neuware -The Hope of Education focuses on the expectations that Somalis who came to Melbourne as refugees have for their children's education. It analyses their perceptions of the Somali and Australian education systems and the implications of these for their family's ability to adapt and cope with Australian life. In doing so, it also shows how they use education to reconstruct their world as part of resettlement in Australia. The Hope of Education highlights specific programs and activities that bring parents and teachers together around their child's education to build bridging social capital and optimism about the future. It sets the stage for positive agency at a time when Somali families are coping with trauma, loss and disconnection in an unfamiliar society. Therefore, this book has international application for helping schools and teachers to foster better communication and to create an environment in which families feel welcome and empowered.VDM Verlag, Dudweiler Landstraße 99, 66123 Saarbrücken 344 pp. Englisch.…