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Electrochemical S-Nitrosothiol Sensors - Nitric Oxide Generation by Polymeric Organoselenium Catalysts
ISBN: 9783836470001 / Angielski / Miękka / 216 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. S-Nitrosothiols (RSNOs) are related to a variety of nitric oxide (NO)-dependent physiological processes such as vasorelaxation and anti-platelet activity. Recent studies view RSNO deficiency in blood as an indicator of endothelial dysfunction associated with cardiovascular diseases. Most assay techniques for RSNOs require extensive sample preparation steps and complex measurement systems. Further, no analytical methods exist that allow direct measurement in whole blood samples. This book describes, for the first time, the development of new electrochemical sensor for real-time blood RSNO...
S-Nitrosothiols (RSNOs) are related to a variety of nitric oxide (NO)-dependent physiological processes such as vasorelaxation and anti-platelet activ...
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DNA Block Copolymers - Synthesis, Morphologies, and Applications
ISBN: 9783639037210 / Angielski / Miękka / 216 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. The highly specific base pairing of DNA serves not only as the genetic code for life but also as the building block in the design of novel materials owing to its remarkable features. In the last decade significant research has focused on using DNA as a synthetically programmable binding motif for the preparation of new materials with preconceived architectural parameters and properties. Such materials have led to the development of new biological detection schemes, novel nanostructures, and the construction of nanoelectronic devices. Recently, polymer chemistry and molecular biology have...
The highly specific base pairing of DNA serves not only as the genetic code for life but also as the building block in the design of novel materials o...
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Investigation of Trichloroethene Abatement for the Degreasing Industry
ISBN: 9783639097351 / Angielski / Miękka / 212 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Chlorinated hydrocarbon solvents are required in many industrial cleaning processes, and their emission is regulated. With so many options available, it can be difficult to determine the best environmental and economic solutions. This book investigates the management of vapour emissions of a popular degreasing agent, TCE. The reader will gain an in depth understanding of the industrial context, including problems faced by industry, health and environmental impacts of degreasers, regulatory approaches and available technologies. The primary focus of the work is an investigation of a novel...
Chlorinated hydrocarbon solvents are required in many industrial cleaning processes, and their emission is regulated. With so many options available, ...
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Ultrafast Chemical Exchange Spectroscopy
ISBN: 9783639098754 / Angielski / Miękka / 216 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. The book discusses the methodology and experimental setup of Ultrafst Chemical Exchange Spectroscopy in details. Some application examples of the new method are also included. The method has been successfully applied to the study of fast chemical exchange phenomena in liquid solutions at room temperature. The formation and dissociation dynamics of weak intermolecular interactions were monitored in real time with the method. For interaction enthalpies from -0.6 kcal/mol to -3.3 kcal/mol, the dissociation time constants vary from 3 ps to 140 ps. The dissociation rates of the interactions are...
The book discusses the methodology and experimental setup of Ultrafst Chemical Exchange Spectroscopy in details. Some application examples of the new ...
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Variations on a Theme
ISBN: 9783639103311 / Angielski / Miękka / 292 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. This work examines affinity theories espoused by British chemists of the 18th Century, exposing a degree of theoretical variation at odds with the received view of a unified, monolithic affinity theory. Showing that affinity was valued for its utility and its ability to guide chemical practice, it explains how theories were formulated specifically to assist the chemist at an operational level. This work explores the roles assigned to affinity in chemical practice and, in particular, in chemical pedagogy. It traces a complex structure of correspondences and divergences amongst affinity...
This work examines affinity theories espoused by British chemists of the 18th Century, exposing a degree of theoretical variation at odds with the rec...
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357,51 |
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Assessment Formats and Cognitive Styles - Some factors that might affect pupils' performance at School Chemistry
ISBN: 9783639064728 / Angielski / Miękka / 320 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. |
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Block Copolymers in Liquid Crystal Solvents
ISBN: 9783639132243 / Angielski / Miękka / 336 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Liquid crystals enjoy a wide range of technological applications, perhaps the best-known being the LCD, or liquid crystal display. When combined with polymeric materials the resulting solutions have a range of physical properties not present in either material alone and this coupling imparts useful properties such as novel electro-optic switching combined with easy processability. This book explores the relationships between polymers and liquid crystals through experimental investigations of their solutions.
Liquid crystals enjoy a wide range of technological applications, perhaps the best-known being the LCD, or liquid crystal display. When combined with ...
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Metal dispersal around mining environments
ISBN: 9783639136173 / Angielski / Miękka / 252 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Metal pollution of the environment as a result of
abandoned mining activities is an acute problem nowadays. Although mineral resource extraction has been carried out for centuries, little attention has been given to minimise metal dispersal around these areas coming from the indiscriminately dumped mining wastes. As a consequence, one of the challenges facing society today is the identification, evaluation and remediation of these old disused areas to protect public health and environmental quality. These studies are heavily dependant on observation and quantitative measurements of... Metal pollution of the environment as a result of
abandoned mining activities is an acute problem nowadays. Although mineral resource extrac... |
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Atmospheric Particulate Matter
ISBN: 9783639148251 / Angielski / Miękka / 228 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Particulate pollution has been considered as an
emerging atmospheric problem particularly due to overwhelming anthropogenic activities. Numerous health effects are associated with these particulates mainly due to their smaller size and toxic chemical species. The focus of this work is to characterize atmospheric particulate matter in terms of its trace metal contents and size fractionation. Correlation and regression analyses are used to determine the dependence of trace metals and particulate fractions in relation to meteorological parameters. Seasonal, monthly and daily... Particulate pollution has been considered as an
emerging atmospheric problem particularly due to overwhelming anthropogenic activities. Nume... |
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Hypoxia-Selective Copper Radiopharmaceuticals
ISBN: 9783639152449 / Niemiecki / Miękka / 272 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Solid tumours differ from normal tissue in a number
of important ways. Rapid growth and metabolism of tumours often leads to altered physiology including changes in vasculature and perfusion which can in turn induce fluctuations in the supply of nutrients such as oxygen. Reduced tissue oxygenation, known as hypoxia, has been linked to radio- and chemotherapeutic resistance and is often associated with a poor prognosis for disease-free survival in cancer patients. Identification of tumour hypoxia by using non-invasive imaging techniques such as positron emission tomography (PET) is vital for... Solid tumours differ from normal tissue in a number
of important ways. Rapid growth and metabolism of tumours often leads to altered physiolog... |
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Nitric oxide delivery from polymeric wound dressings
ISBN: 9783639196030 / Angielski / Miękka / 208 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Nitric oxide (NO) has been found to play many diverse physiological roles, ranging from a neurotransmitter to an active participant in wound healing. In the present work, we have developed several polymeric devices using the electrospinning technique for the sustained, site specific delivery of nitric oxide. In addition to a multilayered patch, a topical cream was developed. The cream can be applied topically for the site specific delivery of NO. The results show stable, sustained and site specific delivery of NO.
Nitric oxide (NO) has been found to play many diverse physiological roles, ranging from a neurotransmitter to an active participant in wound healing. ...
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The Effect of Ultrasound on Electrochemical Processes
ISBN: 9783639141436 / Angielski / Miękka / 264 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. The effect of ultrasound on dye degradation and the anodic behaviour of copper was studied. Dye degradation was studied by bulk sonolysis and bulk electrolysis of aqueous solutions containing three model dyes. Electrolytic dye degradation was achieved using potassium chloride, potassium sulphate, and potassium nitrate as electrolytes. Electrochemical degradation was fastest using potassium chloride since chlorine and hence hypochlorite (bleach) were generated during electrolysis. Ultrasound was found to degas chlorine and this resulted in slow sonoelectrochemical degradation...
The effect of ultrasound on dye degradation and the anodic behaviour of copper was studied. Dye degradation was studied by bulk sonolysis and bulk ...
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Investigations on metal-ceria interaction in auto-exhaust catalysis
ISBN: 9783639245271 / Angielski / Miękka / 280 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. With the increasing pace of urbanization
and industrialization, environmental pollution has become a major global concern. The auto-exhaust pollutants are responsible for a variety of adverse health effects, global warming, acid rains, and town smog. Noble metals supported on alumina are the usual catalytic materials, wherein a rare earth oxide, usually ceria, is added as a promoter. The higher catalytic activity is generally attributed to metal-support interaction. Understanding of the... With the increasing pace of urbanization
and industrialization, environmental pollution has become a major global con... |
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Alfred Nobel and The Nobel Laureates
ISBN: 9783639252477 / Angielski / Miękka / 328 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. On November 27, 1895, Alfred Nobel signed
his last will in Paris. The Nobel Foundation was established in 1900 based on the will of Alfred Nobel. Since 1901, the Nobel Prize has been honoring people (except few years in between when the prize money was allocated to the Special Fund of this prize section) from all corners of the globe for outstanding achievements in physics, chemistry, medicine, literature, and for work in peace. In 1968, the Sveriges Riksbank Prize in Economic Sciences was... On November 27, 1895, Alfred Nobel signed
his last will in Paris. The Nobel Foundation was established in 1900 based o... |
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Analyse d'extraits naturels parfumants par gc/olfactométrie
ISBN: 9786131501517 / Francuski / Miękka / 280 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Le couplage GC/Olfactometrie utilise le nez humain comme detecteur parallelement a un detecteur physique et permet ainsi de cibler les recherches sur les composes odorants. La nature etant une source inepuisable de nouvelles molecules odorantes, des extraits de Brassicales et d'une Asterale, connus pour leur richesse en composes azotes et soufres, ont ete etudies par GC/MS, GC-FID, GC/FPD, GCxGC/MS ainsi que par GC/O (AEDA et VIDEO-Sniff). Deux nouvelles familles de molecules odorantes ont ete mises en evidence dans l'absolue de cresson d'Inde, les thiocarbamates et les thiocarbonates. Ces...
Le couplage GC/Olfactometrie utilise le nez humain comme detecteur parallelement a un detecteur physique et permet ainsi de cibler les recherches sur ...
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Chiralité, amphiphiles et polymères
ISBN: 9786131500954 / Francuski / Miękka / 248 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. L'expression de la chiralitA(c) dans la nature se fait A diffA(c)rentes A(c)chelles: structures hA(c)licoAdales des protA(c)ines et des acides nuclA(c)iques, fibres de myosine dans les muscles, coquilles d'escargot ou feuilles sur une tige. Tous ces objets amplifient A plus grande A(c)chelle la chiralitA(c) de simples centres asymA(c)triques. Dans cette thA]se, nous nous sommes intA(c)ressA(c)s A l'amplification de la chiralitA(c) molA(c)culaire et A son expression A une A(c)chelle macromolA(c)culaire dans des chaA(R)nes polymA]res ou supramolA(c)culaire dans les agrA(c)gats d'amphiphiles.
L'expression de la chiralitA(c) dans la nature se fait A diffA(c)rentes A(c)chelles: structures hA(c)licoAdales des protA(c)ines et des acides nuclA(c...
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Etude d'Une Foug�re M�dicinale de Polyn�sie Fran�aise, Le Metuapua'a
ISBN: 9786131507953 / Francuski / Miękka / 264 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Metuapua'a (Microsorum scolopendria et Microsorum membranifolium) est le nom donnA(c) A un ensemble de fougA]res appartenant A la famille des PolypodiacA(c)es. TrA]s rA(c)pandues en PolynA(c)sie FranAaise, elles sont utilisA(c)es dans la pharmacopA(c)e traditionnelle polynA(c)sienne. La prA(c)sence dans metuapua'a d'ecdystA(c)roides, dont les bienfaits sur la santA(c) sont bien connus, justifie son utilisation. La composition chimique en ecdystA(c)roAdes des frondes a A(c)tA(c) dA(c)terminA(c)e pour la premiA]re fois chez les six espA]ces de Microsorum de PolynA(c)sie franAaise. M....
Metuapua'a (Microsorum scolopendria et Microsorum membranifolium) est le nom donnA(c) A un ensemble de fougA]res appartenant A la famille des Polypodi...
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Etude Cin�tique Sur Catalyseurs de Postcombustion Automobile
ISBN: 9786131513527 / Francuski / Miękka / 280 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Cet ouvrage est dA(c)diA(c) A l''A(c)tude cinA(c)tique des rA(c)actions impliquA(c)es A la surface de catalyseurs de postcombustion automobile. Les phases actives sont gA(c)nA(c)ralement constituA(c)es de mA(c)taux nobles. Pratiquement, il s''agit de rA(c)duire leur teneur voire de trouver d''autres A(c)lA(c)ments de substitution moins onA(c)reux. Cet objectif suppose une parfaite connaissance des mA(c)canismes des rA(c)actions A la surface des mA(c)taux nobles de faAon A simuler correctement les courbes de conversion des oxydes d''azote, de CO et autres hydrocarbures imbrAlA(c)s au cours du...
Cet ouvrage est dA(c)diA(c) A l''A(c)tude cinA(c)tique des rA(c)actions impliquA(c)es A la surface de catalyseurs de postcombustion automobile. Les ph...
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�laboration d'Un Mat�riau Composite Innovant: Bois / Bio-Polym�re
ISBN: 9786131519574 / Francuski / Miękka / 264 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. La substitution des composites a base de polymeres d''origine fossile renforces de fibres minerales ou synthetiques, par des materiaux a base de bio-polymeres et fibres vegetales, permet d''envisager un recyclage ou une bio-degradation en fin de vie. Dans cet objectif, nous avons elabore un bio-composite a base de bois et de bio-polymere par impregnation dans le bois d''acide lactique oligomerise, suivie d''un chauffage en etuve. L''objectif de ce travail est de provoquer la polymerisation in-situ et d''induire un greffage sur le bois dans le but d''ameliorer ses proprietes. L''action du...
La substitution des composites a base de polymeres d''origine fossile renforces de fibres minerales ou synthetiques, par des materiaux a base de bio-p...
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Análisis de Residuos de Plaguicidas. Acoplamiento En Cromatografía
ISBN: 9783639212105 / Angielski / Miękka / 304 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. El objetivo fundamental de la presente Tesis Doctoral ha sido comparar dos tecnicas cromatograficas acopladas utilizadas en Cromatografia Liquida (acoplamiento LC-LC y acoplamiento SPE-LC), mediante su aplicacion al analisis de residuos de diferentes familias de herbicidas en muestras de agua. Las ventajas de la aplicacion de las tecnicas cromatograficas acopladas en el analisis de residuos de plaguicidas son bien conocidas en la actualidad en cuanto a las mejoras de sensibilidad y/o selectividad de los procedimientos de analisis desarrollados. Ademas, en el caso particular de muestras...
El objetivo fundamental de la presente Tesis Doctoral ha sido comparar dos tecnicas cromatograficas acopladas utilizadas en Cromatografia Liquida (aco...
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