الصفحة 22
الصفحة 22
Extracting Methods of Essential laurel oil and Fixed oil, Their effects on bacteria
Laurus nobilis is an evergreen plant belonging to the Lauraceae family, native to Southern Europe and the Mediterranean area. This is the report on the composition and bioactivity of laurel essential oil (EO) from leaves and extraction essential oil by two solvents (water and ethanol 69%) using by two devices (Clevenger and evaporator) then we apply the effect of oil and extract on the bacteria. there are some differences between the extraction by water and ethanol . The antibacterial properties of laurel EOs were examined according to the agar well diffusion method The leaf EO showed antibacterial activities against almost all strains of the microorganisms tested, whereas the twig EO was only able to inhibit Staphylococcus aurous and Escherichia coli were the bacterial strains that showed the highest resistance to the laurel EO. The results can benefit the EO industry and bio pesticide development.
Exploring the Secrets of the Aurora
This new edition of Exploring the Secrets of the Aurora is based on the author's own experiences as a scientist. It describes the history of progress made in auroral science and magnetospheric physics by providing examples of ideas, controversies, struggles, acceptance, and success.
Exploring Ancient Skies : An Encyclopedic Survey of Archaeoastronomy
Exploring Ancient Skies brings together the methods of archaeology and the insights of modern astronomy to explore the science of astronomy as it was practiced in various cultures prior to the invention of the telescope. The book reviews an enormous and growing body of literature on the cultures of the ancient Mediterranean, the Far East, and the New World (particularly Mesoamerica), putting the ancient astronomical materials into their archaeological and cultural contexts. The authors begin with an overview of the field and proceed to essential aspects of naked-eye astronomy, followed by an examination of specific cultures. The book concludes by taking into account the purposes of ancient astronomy: astrology, navigation, calendar regulation, and (not least) the understanding of our place and role in the universe. Skies are recreated to display critical events as they would have appeared to ancient observers - events such as the supernova of 1054, the 'lion horoscope' or the 'Star of Bethlehem.'
Experimenting with Dynamic Macromodels : Growth and Cycles
This book presents a macroeconomic dynamic model à la Solow-Swan, including the market for labour, in a discrete time structure. Labour supply is modelled as a reversed S curve (derived in the appendix). The models are expanded to include expenditure on R&D (thus endogenous technical progress), and public expenditure on infrastructures. For each of the three models, numerical simulations are implemented in MAPLE, and the results are shown in time series figures, which make it easy to detect that even small changes in the parameters produce responses in the time behaviour of the main variables: from steady growth, to regular cycles, to chaotic-like time paths. The simulations show that cycles do not promote material welfare, as measured by total undiscounted consumption along the time horizon, and that the comparative action of R&D versus public expenditure is strictly linked to the values assigned to the parameters.
Experimental Unsaturated Soil Mechanics
These proceedings are a continuation of the series of International Conferences in Germany entitled "Mechanics of Unsaturated Soils." The primary objective is to discuss and understand unsaturated soil behaviour such that engineered activities are made better with times in terms of judgement and quality. We all realise by now that in addition to the knowledge on the classical concepts, it becomes an enormous challenging task to adapt convincing new concepts and present them in such a way that it could be used in engineering practices. The experimental studies reported primarily focus on the role of microstructure and fabric for the complex coupled hydro-mechanical behaviour of cohesive frictional materials. Several papers consider the relevance of temperature affecting the constitutive behaviour of clays. Common features of state of the art theoretical and numerical approaches, including theory of porous media and mixture theory, intend to describe the complex multi-field problems of fully coupled thermo-hydraulic-mechanical-chemical initial - boundary value problems.
Experimental Algorithms ; 7th International Workshop, WEA 2008 Provincetown, MA, USA, May 30-June 1, 2008 Proceedings
The Workshop on Experimental Algorithms, WEA, is intended to be an international forum for research on the experimental evaluation and engineering of algorithms, as well as in various aspects of computational optimization and its applications. The emphasis of the workshop is the use of experimental me- ods to guide the design, analysis, implementation, and evaluation of algorithms, heuristics, and optimization programs. WEA 2008 was held at the Provincetown Inn, Provincetown, MA, USA, on May 30 – June 1, 2008. This was the seventh workshop of the series.
Exercises in Environmental Physics
Exercises in Environmental Physics covers the essential topics in university courses in environmental physics including: Energy and the environment / Fluid mechanics / Evapotranspiration, soil physics and groundwater hydrology / Pollution / Ocean and atmospheric physics / The planet in space This is the first book specifically devoted to exercises on the application of physics to describe the environment including the human impact. It is a valuable tool for students to develop skills in the manipulation of physical concepts and methods while learning environmental science. The exercises are drawn from the author's teaching experience and the need for stimulating practice problems in various environmental physics courses. A chapter on mathematical methods used in the book supplements the material.
Evolving methods for macromolecular crystallography : The structural path to the understanding of the mechanism of action of CBRN agents
This volume comprises papers presented at the 2005 edition of the “Crystallography of Molecular Biology” courses that have been held since 1976 at the Ettore Majorana Centre for Scientific Culture in Erice, Italy. The papers span the breadth of material presented in the course, which emphasized the practical aspects of modern macromolecular crystallography and its applications.
Evolutionary computation in combinatorial optimization ; 8th European Conference, EvoCOP 2008, Naples, Italy, March 26-28, 2008. Proceedings
Metaheuristics have been shown to be e?ective for di?cult combinatorial - timization problems appearing in various industrial, economical, and scientifc domains. Prominent examples of metaheuristics are evolutionary algorithms, tabu search, simulated annealing, scatter search, memetic algorithms, variable neighborhood search, iterated local search, greedy randomized adaptive search procedures, ant colony optimization and estimation of distribution algorithms. Problems solved successfully include scheduling, timetabling, network design, transportation and distribution, vehicle routing, the travelling salesman pr- lem, packing and cutting, satisfability and general mixed integer programming.
Evolution, Monitoring and Predicting Models of Rockburst : Precursor Information for Rock Failure
Focuses on investigating predicting precursor information and key points of rockburst in mining engineering through laboratory experiment, theoretical analysis, numerical simulation and case studies. Understanding the evolution patterns for the microstructure instability of rock is a prerequisite for rockburst prediction. The book provides a guide for readers seeking to understand the evolution patterns for the microstrucure of rock failure, the predicting key point of rock failure and the rockburst predicting model. It will be an essential reference to understand mechanism of rockburst and sheds new light on dynamic disasters prediction. Chapters are carefully developed to cover (1) The evolution patterns for the microstructure instability of rock; (2) Rockburst hazard monitoring and predicting criterion and predicting models. The book addresses the issue with a holistic and systematic approach that investigates the occurrence mechanism of rockburst based on the evolution patterns for the microstructure of rock failure and establishes the predicting model of rockburst.
Evolution of Thin Film Morphology : Modeling and Simulations
Thin film deposition is the most ubiquitous and critical of the processes used to manufacture high tech devices. Morphology and microstructure of thin films directly controls their optical, magnetic, and electrical properties. This book focuses on modeling and simulations used in research on the morphological evolution during film growth. The authors emphasize the detailed mathematical formulation of the problem both through numerical calculations based on Langevin continuum equations, and through Monte Carlo simulations based on discrete surface growth models when an analytical formulism is not convenient. Evolution of Thin-Film Morphology will be of benefit to university researchers and industrial scientists working in the areas of semiconductor processing, optical coating, plasma etching, patterning, micro-machining, polishing, tribology, and any discipline that requires an understanding of thin film growth processes.
Evidence-Based Management : How to Use Evidence to Make Better Organizational Decisions
Evidence-based management has evolved with the goal of improving the quality of decision-making by using critically evaluated evidence from multiple sources - organizational data, professional expertise, stakeholder values and scientific literature. This book sets out and explains the specific skills needed to gather, understand and use evidence to make better-informed organizational decisions.
Evaluation of the use of medicine plants in cancer treatment
Turmeric (Curcuma longa) and ginger (Zingiber officinale) have been widely studied for their potential anticancer effects, primarily due to the bioactive compounds curcumin and gingerol. Both compounds exhibit significant therapeutic properties, including anti-inflammatory, antioxidant, pro-apoptotic, and anti-angiogenic activities, which target key pathways implicated in cancer progression, such as NF-κB, STAT-3, and mTOR. Through these mechanisms, curcumin and gingerol inhibit tumor growth, reduce metastasis, and enhance the efficacy of conventional cancer treatments.
Evaluating Multiple Narratives : Beyond Nationalist, Colonialist, Imperialist Archaeologies
This volume uses Bruce Trigger's 1984 article, "Alternative Archaeologies: Nationalist, Colonialist, Imperialist" as a starting point to examine the complex interaction between contemporary society and archaeological practice today. This book uses case studies from Asia, Latin America, Europe and North America to explore the interplay between the sociopolitical context of specific national, regional or local archaeological traditions and the variety of interpretations of the past made by archaeologists and others.
Europes Automotive Industry on the Move : Competitiveness in a Changing World
The automotive industry is a major pillar of the modern global economy and one of Europe’s key industries. There can hardly be any doubt about the important role of this sector as an engine for employment, growth and innovation in Europe, and there are crucial challenges and opportunities ahead. The authors shed light on a broad range of issues – globalisation and restructuring, trade and foreign direct investment, innovation, regulation, and industry policy – and put a special focus on the new member states. While change may be inevitable, progress is not. This book shall serve as a map to all stakeholders: business executives and policy makers, investors and scholars.
Euro-Par 2020 : Parallel Processing ; 26th International Conference on Parallel and Distributed Computing, Warsaw, Poland, August 24–28, 2020, Proceedings
This book constitutes the proceedings of the 26th International Conference on Parallel and Distributed Computing, Euro-Par 2020, held in Warsaw, Poland, in August 2020. The conference was held virtually due to the coronavirus pandemic. The 39 full papers presented in this volume were carefully reviewed and selected from 158 submissions. They deal with parallel and distributed computing in general, focusing on support tools and environments; performance and power modeling, prediction and evaluation; scheduling and load balancing; high performance architectures and compilers; data management, analytics and machine learning; cluster, cloud and edge computing; theory and algorithms for parallel and distributed processing; parallel and distributed programming, interfaces, and languages; multicore and manycore parallelism; parallel numerical methods and applications; and accelerator computing.
Euro-Par 2007 Workshops : Parallel Processing ; HPPC 2007, UNICORE Summit 2007, and VHPC 2007, Rennes, France, August 28-31, 2007, Revised Selected Papers
Parallel and distributed processing , although within the focus of computer science research for along time ,is gainingmore and more importance in awidespectrum of applications. These proceedings aim to demonstrate the use of parallel and distributed processing concepts in diferent application felds, and attempt to spark interest in novel research directions to advance the embracing model of high-performance computing research in general. The objective of these workshops is to specifcally address researchers c- ing from university, industry and governmental research organizations and application-oriented companies, in order to close the gap between purely sentifc research and the applicability of the research ideas to real-life problems.
Euro-Par 2007 Parallel Processing ; 13th International Euro-Par Conference, Rennes, France, August 28-31, 2007, Proceedings
This book covering support tools and environments; performance prediction and evaluation; scheduling and load balancing; compilers for high performance; parallel and distributed databases; grid and cluster computing; peer-to-peer computing; distributed systems and algorithms; parallel and distributed programming; parallel numerical algorithms; distributed and high-performance multimedia; theory and algorithms for parallel computation; high performance networks; mobile and ubiquitous computing.
Euro-Par 2005 Parallel Processing ; 11th International Euro-Par Conference, Lisbon, Portugal, August 30 - September 2, 2005, Proceedings
This book constitutes the refereed proceedings of the 11th International Conference on Parallel Computing, Euro-Par 2005, held in Lisbon, Portugal, in August/September 2005. The 120 revised papers presented together with 4 invited papers were carefully reviewed and selected from 388 submissions. The papers are organized in topical sections on support tools and environments, performance prediction and evaluation, scheduling and load balancing, compilers for high performance, parallel and distributed databases, data mining and knowledge discovery, grid and cluster computing: models, middleware and architectures, parallel computer architecture and instruction distributed systems and algorithms, parallel programming: models, methods, and languages, parallel numerical algorithms.
Etymological Dictionary of Grasses
The dictionary provides explanations of the meaning and origins of generic and specific names of grasses, one of the largest and economically most important plant families. Most of the names published during the past 250 years are included.
