Thomas Letzel – författare
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5 produkter
5 produkter
Assessing Transformation Products of Chemicals by Non-Target and Suspect Screening
Strategies and Workflows Volume 1
Inbunden, Engelska, 2018
2 267 kr
Skickas inom 5-8 vardagar
The identification and quantification of the widespread occurrence of trace organic chemicals at minute concentrations in the aqueous environment impacted by human activities is a result of rapid advances in environmental analytical chemistry. The body of knowledge regarding the characterization, fate and transport of these chemicals of emerging concern (CECs) in the natural water environment and engineered water treatment processes, as well as their toxicity, hasgrown substantially over the last two decades. Recently, the focus in the environmental chemistry community has shifted from these CEC parent compounds to the fate, transport, and toxicity of transformation products, which are generated through abiotic and biotic mechanisms in natural systems andduring engineered advanced water treatment processes.This two-part book focuses on the studies and recent advancements towards the development of more harmonized strategies and workflows using non-target and suspects screening methods, including suitable bioassay approaches to assess the overall relevance of transformation products. Volume I covers the relevance of transformation products and international strategies to manage CECs, new methods for a comprehensive assessment of transformation products, and the fate and transport of transformationproducts in natural systems. This book is ideal for environmental scientists and engineers, particularly chemists, environmental engineers, public health officials, regulators, other chemistry-related professionals, and students.
347 kr
Skickas inom 10-15 vardagar
Experiencing Mathematics: Activities to Engage the High School Student is the result of the collaborative effort of nine Adolescent Young Adult (AYA) National Board Certified Teachers (NBCTs) in mathematics. This student edition is a compilation of successful activities that prompt high school students to explore, conjecture, and reflect on their mathematical adventures—thus "experience" mathematics. The relevant nature of the activities will motivate students to pursue their investigations with vigor and take the intellectual risk necessary to construct knowledge and improve problem-solving competence.This book provides student activities grouped in algebra, geometry, and algebra 2 sections that parallel the traditional sequencing in major texts. Through activity design, students are lead through an inductive inquiry in which they conjecture, formulate, and test ideas and concepts. This inductive student-centered approach to learning will not only excite students but also increase student effort.
557 kr
Skickas inom 10-15 vardagar
Experiencing Mathematics: Activities to Engage the High School Student is the result of the collaborative effort of nine Adolescent Young Adult (AYA) National Board Certified Teachers in mathematics. This teacher edition is a compilation of successful activities that prompt high school students to explore, conjecture, and reflect on their mathematical adventures—thus "experience" mathematics. The relevant nature of the activities will motivate students to pursue their investigations with vigor and take the intellectual risk necessary to construct knowledge and improve problem-solving competence.This edition will educate teachers regarding tenets of cognitive science, motivation theory, and the NCTM/NBCT standards. It will dispel the myth that the crowded curriculum does not have room for such activities and, in fact, will convince teachers that using such activities increases teacher and student motivation and achievement. The resources provide detailed instructions for each activity, along with student prompts and reflective questions for the teacher.
1 921 kr
Skickas inom 5-8 vardagar
This book is the first example in presenting LC-MS strategies for the analysis of peptides and proteins with detailed information and hints about the needs and problems described from experts on-the-job. The best advantage is -for sure- the practical insight of experienced analysts into their novel protein analysis techniques. Readers starting in 'Proteomics' should be able to repeat each experiment with own equipment and own protein samples, like clean-up, direct protein analysis, after (online) digest, with modifications and others. Furthermore, the reader will learn more about strategies in protein analysis, like quantitative analysis, industrial standards, functional analysis and more.
383 kr
Skickas inom 5-8 vardagar
Die überarbeitete und aktualisierte 7. Auflage dieses Buches gibt einen Überblick über bewährte und neue Methoden der Proteinbiochemie und Proteomics. Es zeigt Auswege aus experimentellen und strategischen Sackgassen. Zudem weckt es ein Gespür für das richtige Experiment zur richtigen Zeit. Behandelt werden klassische Verfahren wie Säulenchromatographie, HPLC, Elektrophoresen, Blots, ELISA, Ligandenbindungstests, die Herstellung von Antikörpern, das Solubilisieren von Membranproteinen, die Analyse von Glykoproteinen usw. Einen großen Raum nehmen die modernen Verfahren ein: Massenspektrometrie, Proteomics und thermische Analyse. In die 7. Auflage wurden neue Techniken zur Bestimmung der Wechselwirkung von Proteinen mit Proteinen oder von Proteinen mit kleinen Molekülen aufgenommen: DARTS, DRACALA, SPROX und andere. Des weiteren erfahren Sie, wie man mit dem Massenspektrometer eine Bindung misst. Auch Methoden zur Herstellung von Bindungsproteinen gegenbestimmte Zielmoleküle werden vorgestellt: Ribosomen Display und DNA- und Peptid-Aptamer-Techniken. Der Fluoreszenznachweis von Proteinen mit Hilfe von Trihalogenverbindungen durfte nicht fehlen und wer die Stabilität und Faltung von Proteinen messen will, kann hier nachlesen, ob er dazu ein CD-Spektrometer benutzen sollte. Auf die Fortschritte in der HPLC und der Massenspektrometrie von Membranproteinen wird ebenso eingegangen wie auf ihre Rekonstitution in Nanoscheibchen (Nanodiscs). Die Mikrodissektion mit UV-Laser, die isoelektrische Fokussierung in Kapillaren und iTRAQ-Tags werden erklärt. Dazu kommt eine Anzahl neuer Tricks zur Proteinbestimmung, Gelfärbung, Blottechnik, Immunfärbung, Elution aus Gelstückchen etc.