Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Current literature

Although literature publications on the use of herbal medicine have increased over the years, there are relatively few retrievable literature reports regarding [Pg.137]


Clearly, the physical chemistry of surfaces covers a wide range of topics. Most of these subjects are sampled in this book, with emphasis on fundamentals and important theoretical models. With each topic there is annotation of current literature with citations often chosen because they contain bibliographies that will provide detailed source material. We aim to whet the reader s appetite for surface physical chemistry and to provide the tools for basic understanding of these challenging and interesting problems. [Pg.3]

Students and instructors). Each chapter presents first the basic surface chemistry of the topic, with optional material in small print. Derivations are generally given in full and this core material is reinforced by means of problems at the end of the chapter. A solutions manual is available to instructors. It is assumed that students have completed the usual undergraduate year course in physical chemistry. As a text for an advanced course, the basic material is referenced to fundamental, historical sources, and to contemporary ones where new advances have been incorporated. There are numerous examples and data drawn from both the older and from current literature. [Pg.801]

In molecular dynamics applications there is a growing interest in mixed quantum-classical models various kinds of which have been proposed in the current literature. We will concentrate on two of these models the adiabatic or time-dependent Born-Oppenheimer (BO) model, [8, 13], and the so-called QCMD model. Both models describe most atoms of the molecular system by the means of classical mechanics but an important, small portion of the system by the means of a wavefunction. In the BO model this wavefunction is adiabatically coupled to the classical motion while the QCMD model consists of a singularly perturbed Schrddinger equation nonlinearly coupled to classical Newtonian equations, 2.2. [Pg.380]

When structure-property relationships are mentioned in the current literature, it usually implies a quantitative mathematical relationship. Such relationships are most often derived by using curve-fitting software to find the linear combination of molecular properties that best predicts the property for a set of known compounds. This prediction equation can be used for either the interpolation or extrapolation of test set results. Interpolation is usually more accurate than extrapolation. [Pg.243]

Membrane Cliaraeterization MF membranes are rated bvtliix and pore size. Microfiltration membranes are imiqiielv testable bv direct examination, but since the number of pores that rnav be obsen ed directlv bv microscope is so small, microscopic pore size determination is rnainlv useful for membrane research and verification of other pore-size-determining methods. Furthermore, the most critical dimension rnav not be obseiA able from the surface. Few MF membranes have neat, cvlindrical pores. Indirect means of measurement are generallv superior. Accurate characterization of MF membranes is a continuing research topic for which interested parties should consult the current literature. [Pg.2045]

The definition of a drug differs between dictionaries and among the various professional specialisms. A search of the internet elicited various definitions and a paraphrase of the most memorable is a compound can be defined as a drug if, when injected into a rodent, it yields a scientific publication . Although this is a memorable definition, for the purposes of this review, however, a drug is defined broadly as a compound that has properties that influence the health of an animal when ingested or administered to that animal. A brief look at current literature will quickly convince the reader that this is a definition which covers man-made and natural compounds that can be extracted from plant material and microbes and iised. ... [Pg.85]

The choices of quantum mechanical method typically include the semi-empirical methods AMI, PM3, and MNDO/d [1-A. These three methods (and some of their variations) are those most commonly used in the current literature. Of these semi-empirical methods, only MNDO/d includes the effects of d-orbitals. Some of the problems associated with these semiempirical methods include ... [Pg.152]

The goal of this book is to help you understand the procedures which are necessary to successfully produce and utilize a calibration in a production environment the amount of time and resources required to do so and the proper use of the quantitative software provided with an instrument or commercial software package. This book is not intended to be a comprehensive textbook. It aims to clearly explain the basics, and to enable you to critically read and understand the current literature so that you may further explore the topics with the aid of the comprehensive bibliography. [Pg.210]

The current literature on x-ray absorption and emission in analytical chemistry is growing rapidly. In the present book, it will unfortunately be necessary to restrict references to those adequate to support the text. The reader interested in a more complete listing of the current literature will find helpful the series of review articles given below. [Pg.41]

The sophistication of the concepts being considered by this symposium points up the impressive advances which have been made in recent years in the understanding of ion-molecule reactions. Unfortunately, this knowledge is confined to that fraction of the scientific population which reads the current literature of mass spectrometry or radiation chemistry since writers of textbooks on kinetics have not yet discovered ion-molecule reaction kinetics as an area worthy of more than cursory mention. It is hoped that this symposium will help in some small way to remedy that situation. [Pg.6]

In this book we use our own results on a number of problems related to flow and heat transfer in micro-channels, as well as those of numerous theoretical and experimental investigations published in current literature. The presented materials... [Pg.486]

The story of luminescence advances since 1970 is best found in the current literature. It is too large and diversified to be readily summarized in a single article and too recent to edit for the most important events. Luminescence studies are so pervasive throughout all the fields of science that each special sphere of inquiry could have its own recent history of luminescence. Many of the most important developments of today will necessarily remain hidden to most scientists until later discoveries reveal their significance. For these reasons, this report continues with a personal selection of topics, chosen to guide the reader to a potpourri of interesting recent reports. [Pg.11]

Incorporating the Kirtas system with the International Plant Names Index and SNOW-MED allows movement of the historic text into an electronic format, identihcation of current plant names, and identihcation of the symptoms treated with the plants. To complete the mining of historic herbal texts for novel drug leads we use the Natural Products Alert (NAPRALERT ) database to compare the information extracted from the historic herbal text to the reports of plant use in the current literature. The NAPRALERT database provides a summary of plants ethnopharmacological use, biochemical activities, and isolated compounds [27]. By querying each plant (with the current plant name) it is possible to identify any reports in the current literature regarding the plant. As an example, Table 4.1 shows the NAPRALERT output for Cycas rumphii. [Pg.114]

These contributions represent major groups in this important field and fulfill a notable void in the current literature. [Pg.419]

Even beyond this, it should be clear that the large clamp voltage of say 100 mV may already lead to the inactivation of larger channels, and, still worse, the excision of the cell membrane itself may inactivate channels. It is not surprising then that the current literature gives a grossly distorted view of the world of Cl -channels. It is full of large and intermediate channels, but much less data are available on small channels. This analytical problem can be overcome by other patch clamp techniques. [Pg.277]

In this chapter we review the current literature available on the influence of root exudates on rhizosphere microbial populations and the effects of plant, microbial and soil factors on the processes of rhizodeposition and microbial colonization and activity. We first give a brief overview and definitions of some of the main concepts relating to the rhizosphere and rhizodeposition. [Pg.95]

Cyclophosphazenes are a fascinating group of inorganic heterocyclic compounds whose chemistry is multi-faceted, well developed and reasonably well understood. They are closely related to the linear poly-phosphazenes this relationship is unlike any other existing between ring-polymer systems. Although cyclic siloxanes and polysiloxanes have a close interrelationship, the number and types of cyclophospha-zene derivatives that are known, together with their exact counterparts in polyphosphazenes, underscore the utility of cyclophosphazenes as models for the more complex polyphosphazenes. The literature on cyclophosphazenes has appeared earlier in the form of books (1,2), chapters of books (3-5), authoritative compilations of data (6,7), and several reviews (8-21). The current literature on this subject is reported annually in the Specialist Periodic Reports published by the Royal Society of chemistry (22). This review deals mostly with chlorocyclo-... [Pg.159]

Note Many variations exist, and current literature should be checked prior to administering any chemotherapy regimen. [Pg.1347]

In this respect, current state-of-the-art ends up in a draw. This book makes a substantial contribution to the current literature on the analytics of polymer additives, follows up an earlier industrial tradition and lays a foundation for the future. It will be of great value to a broad readership comprising industrial and academic (analytical) chemists, polymer scientists and physicists, technologists and engineers, and other professionals involved in R D, production, use and reuse of polymers and additives in all areas of application, including manufacturers, formulators, compounders, end users, government legislators and their staff, forensic scientists, etc. [Pg.827]

Newman, William Royall. "The place of alchemy in the current literature of experiment." In Experimental essays versuche zum experiment, eds. Michael Heidelberger and Friedrich Steinle, 9-33. Baden-Baden Nomos, 1998. [Pg.442]

There is more current literature which speaks to exactly this point. Hassett -0 has found that the sorption of organic compounds from water to suspended particles is altered in the presence of dissolved organic carbon. Griffin Chian - - and Diachenko have found that the volatility of organic compounds in water decreases when humic materials are present. Perdue -2 has found that the rate of hydrolysis of the octyl ester of 2,4-D is decreased in the presence of humic materials. [Pg.216]


See other pages where Current literature is mentioned: [Pg.79]    [Pg.16]    [Pg.84]    [Pg.148]    [Pg.549]    [Pg.295]    [Pg.573]    [Pg.37]    [Pg.143]    [Pg.129]    [Pg.331]    [Pg.391]    [Pg.2]    [Pg.585]    [Pg.106]    [Pg.686]    [Pg.173]    [Pg.190]    [Pg.131]    [Pg.258]    [Pg.55]    [Pg.72]    [Pg.357]    [Pg.779]    [Pg.789]    [Pg.239]    [Pg.476]    [Pg.62]    [Pg.14]   
See also in sourсe #XX -- [ Pg.3 , Pg.4 ]




SEARCH



Current Literature File

Current literature searches

Current reviews of the biochemical literature

Databases Current Literature

Reactions Databases Current Literature

Structure-Reactivity Relationships Based on a Comprehensive Survey of the Current Literature

© 2024 chempedia.info