Many chemists - especially those most brilliant in their field - fail to appreciate the power of planned experimentation. They dislike the mathematical aspects of statistical analysis. In addition, these otherwise very capable chemists also dismissed predictive models based only on empirical data. Ironically, in the hands of subject matter experts like these elite chemists, the statistical methods of mixture design and analysis provide the means for rapidly converging on optimal compositions. What differentiates Formulation Simplified from the standard statistical texts on mixture design is that the authors make the topic relatively easy and fun to read. They provide a whole new collection of insighful original studies that illustrate the essentials of mixture design and analysis. Solid industrial examples are offered as problems at the end of many chapters for those who are serious about trying new tools on their own. Statistical software to do the computations can be freely accessed via a web site developed in support of this book.

In the series of International Protoplast Symposia the Symposium of 1987 was held in Wageningen (The Netherlands). Earlier Symposia took place in Jena (DDR) 1963, Brno (CSSR) 1967, Salamanca (Spain) 1971, Nottingham (UK) 1975, Szeged (Hungary) 1979 and Basel (Switzerland) 1983. This 7th International Protoplast Symposium was organized by K.J. Puite (Secretary), J.J.M. Dons (Treasurer), H.J.Huizing and E.J.L. Hotke-Staal (Local Organizers), the first three persons being scientists, respectively, from the Research Institute Ital, the Institute for horticultural plant breeding IVT and the Foundation for agricultural plant breeding SVP at Wageningen. Scientific Advisers of the Symposium were A. J. Kool, M. Koornneef and F.A. Krens. The International Agricultural Centre lAC served as the Symposium location. The Organizing Committee decided that the scientific programme of the Symposium should be mainly focussed on protoplast technology of relevance to plant breeding. Therefore research on microbial protoplasts and on secondary metabolites was not included. About 250 scientists from 27 different countries were welcomed at the meeting. Speakers at Symposium Sessions and authors of Poster contributions were asked to hand over their manuscripts for the Symposium Proceedings already at the meeting, permit ting early publication of the Proceedings. These manuscripts give the state of the art of the protoplast research and illustrate the progress since the last Protoplast Symposium.

Related Title: Laboratory Scientific Glassblowing: Advanced Techniques and Glassblowing's Place in History'If you are interested in learning about glassblowing techniques for scientific glassware, then this book is an incredible opportunity to learn from a master glassblower. Much of this information is passed down in person, and to have it available in a book such as this is a very rare opportunity that you should not pass up.'IEEE Electrical Insulation MagazineThis book explains and demonstrates the methods involved in scientific glassblowing. It describes elementary to advanced glass manipulation together with technical information on its safe use and development in the laboratory. Edited by Paul Le Pinnet (MBE), a scientific glassblower with over 50 years' experience in the field, experts in glassblowing are brought together to explain their methods and approaches used to produce a variety of glassware.Laboratory Scientific Glassblowing is a unique project which updates and develops the traditional art of glassblowing and brings it into the 21st century. New skills and materials are introduced, including descriptions of working with fused silica, on laser profile cutting and on the creation of artistic glassware in a scientific setting. Written specifically as a hands-on reference work, this book can be used as a step-by-step practical guide for practitioners and scientists as well as students and apprentices interested in the field.Contributions from: Michael Baumbach, MD of H Baumbach & Co; Paul Rathmill, Enterprise Q; William Fludgate, MD BioChem Glass (app) Ltd; Ian Pearson (Past Chairman BSSG), Editor, BSSG Journal; Gary Coyne, California State University USA; Konstantin Kraft-Poggensee, Former chairman, German Scientific Glassblowing Society; Keith Holden President of the Australian and New Zealand Glassblowing Society; Phil Murray, Churchill Fellow.

Related Title: Laboratory Scientific Glassblowing: Advanced Techniques and Glassblowing's Place in History'If you are interested in learning about glassblowing techniques for scientific glassware, then this book is an incredible opportunity to learn from a master glassblower. Much of this information is passed down in person, and to have it available in a book such as this is a very rare opportunity that you should not pass up.'IEEE Electrical Insulation MagazineThis book explains and demonstrates the methods involved in scientific glassblowing. It describes elementary to advanced glass manipulation together with technical information on its safe use and development in the laboratory. Edited by Paul Le Pinnet (MBE), a scientific glassblower with over 50 years' experience in the field, experts in glassblowing are brought together to explain their methods and approaches used to produce a variety of glassware.Laboratory Scientific Glassblowing is a unique project which updates and develops the traditional art of glassblowing and brings it into the 21st century. New skills and materials are introduced, including descriptions of working with fused silica, on laser profile cutting and on the creation of artistic glassware in a scientific setting. Written specifically as a hands-on reference work, this book can be used as a step-by-step practical guide for practitioners and scientists as well as students and apprentices interested in the field.Contributions from: Michael Baumbach, MD of H Baumbach & Co; Paul Rathmill, Enterprise Q; William Fludgate, MD BioChem Glass (app) Ltd; Ian Pearson (Past Chairman BSSG), Editor, BSSG Journal; Gary Coyne, California State University USA; Konstantin Kraft-Poggensee, Former chairman, German Scientific Glassblowing Society; Keith Holden President of the Australian and New Zealand Glassblowing Society; Phil Murray, Churchill Fellow.

Drugs of Abuse: Neurological Reviews and Protocols is intended to provide insightful reviews of key current topics and, particularly, state-- the-art methods for examining drug actions in their various neuroanato- cal, neurochemical, neurophysiological, neuropharmacological, and molecular perspectives. The book should prove particularly useful to n- comers (graduate students and technicians) in this field, as well as to those established scientists (neuroscientists, biochemists, and molecular biologists) intending to pursue new careers or directions in the study of drugs. The book's protocols cover a wide variety of coherent methods for gathering inf- mation on quantitative changes in proteins and mRNAs at both tissue and cel- lar levels. Inducible gene expression in striatal neurons has been a hot topic over the last decade. Alterations in gene expression for a wide range of proteins in the striatum have been investigated in response to drug administration. Altered expression of given mRNAs and their product proteins constitutes essential molecular steps in the development of neuroplasticity related to long-term addictive properties of drugs of abuse. With the multiple labeling methods that are also described in the book, gene expression can be detected in a chemically identified cell phenotype; the expression of multiple genes of interest can be detected in a single cell simultaneously. Hundreds or thousands of gene expr- sion products can today be detected in one experimental setup using the pow- ful systematic cDNA macroarray or microarray screening technology. Moreover, protocols useful in analyzing the functional roles of genes and proteins (e. g.

THIS VOLUME, LIKE THOSE PRIOR TO IT, FEATURES CHAPTERS BY EXPERTS IN VARIOUS FIELDS OF COMPUTATIONAL CHEMISTRY. Volume 23 COVERS LINEAR SCALING METHODS FOR QUANTUM CHEMISTRY, VARIATIONAL TRANSITION STATE THEORY, COARSE GRAIN MODELING OF POLYMERS, SUPPORT VECTOR MACHINES, CONICAL INTERSECTIONS, ANALYSIS OF INFORMATION CONTENT USING SHANNON ENTROPY, AND HISTORICAL INSIGHTS INTO HOW COMPUTING EVOLVED IN THE PHARMACEUTICAL INDUSTRY.

FROM REVIEWS OF THE SERIES

""Reviews in Computational Chemistry" remains the most valuable reference to methods and techniques in computational chemistry."
--"JOURNAL OF MOLECULAR GRAPHICS AND MODELLING"

"One cannot generally do better than to try to find an appropriate article in the highly successful "Reviews in Computational Chemistry." The basic philosophy of the editors seems to be to help the authors produce chapters that are complete, accurate, clear, and accessible to experimentalists (in particular) and other nonspecialists (in general)."
--"JOURNAL OF THE AMERICAN CHEMICAL SOCIETY"

Particle characterization is an important component in product research and development, manufacture, and quality control of particulate materials and an important tool in the frontier of sciences, such as in biotechnology and nanotechnology. This book systematically describes one major branch of modern particle characterization technology - the light scattering methods. This is the first monograph in particle science and technology covering the principles, instrumentation, data interpretation, applications, and latest experimental development in laser diffraction, optical particle counting, photon correlation spectroscopy, and electrophoretic light scattering. In addition, a summary of all major particle sizing and other characterization methods, basic statistics and sample preparation techniques used in particle characterization, as well as almost 500 latest references are provided. The book is a must for industrial users of light scattering techniques characterizing a variety of particulate systems and for undergraduate or graduate students who want to learn how to use light scattering to study particular materials, in chemical engineering, material sciences, physical chemistry and other related fields.

There can be no doubt that some ofthe most spectacular advances made in science over the past few decades have been in the isolation, analysis, and manipulation of nucleicacids. Thishas ledtoamuchgreaterunderstandingofmechanismsandprocesses across many fields of bioscience, such as biochemistry, microbiology, physiology, pharmacology, and the medical sciences to name a few. It has also led to the growth of the biotechnology industry, which seeks to develop and commercialize many ofthese important processes and methods. Much ofthis has come about because ofthe devel opment of numerous molecular biology and genetic manipulation techniques. The discovery of restriction enzymes and the development of cloning vectors in the early 1970sopenedthedoortowaysofisolatingandmanipulatingnucleic acidsthathadnever been thought possible. Gene probe labeling and hybridization were developed and refined toprovidepowerfulmethodsofanalysis. These-togetherwiththedevelopment of DNA sequencing methods, protein engineering techniques, and PeR-have all continued to contribute substantially to the understandingofbiological processes at the molecular level. Theprotocols for these importantmethods are the focus ofThe Nucleic AcidProtocols Handbook, whose aim is to provide a comprehensive set oftechniques in onevolume thatwill enable the isolation, analysis, and manipulationofnucleic acids to be readily undertaken. The NucleicAcidProtocols Handbook is divided into 10 parts; within each there are approximately 10chapters. The first fourpartsfollow oneanotherlogically: nucleic acid extraction (Part I), basic separation and analysisofDNA (II), through probe design and labeling (III), and RNA analysis techniques (IV). The following three sections deal with gene libraryconstruction andscreening(V), DNA sequencing (VI), andthe polymerase chain reaction (VII)."

A collected series of the popular teaching articles from the open-access, online journal CBE-Life Sciences Education . The Allen-Tanner essays are practical guides that share insights and strategies for teaching science, appropriate for both the new instructor and those who have been teaching for many years.

Archaeologists and archaeology students have long since needed an authoritative account of the techniques now available to them, designed to be understood by non-scientists. This book fills the gap and it offers a two-tier approach to the subject. The main text is a coherent introduction to the whole field of science-based dating, written in plain langauge for non-scientists. Additional end-notes, however, offer a a more technical understanding, and cater for those who have a scientific and mathematical background.

Although the difficulties many students encounter when learning chemistry have been known and explored for decades, there is no consensus on how best to assist and assess their learning. Over the past ten years, the availability of a range of technological innovations that are intended to improve student learning and assessment has made the choice of teaching and assessment strategies more complex. Many teachers are rapidly adopting new technologies in teaching and assessment although their impacts have not yet been extensively studied. Many researchers have investigated the use of specific technologies in aspects of their teaching and assessment, and this book contributes to a growing body of literature that allows some generalizations to be drawn. Most importantly, specific strategies are described in detail making it possible for others to take advantage of the learning experiences and allowing practitioners to adopt the practice best suited to their needs. General tools for chemistry education range from tailored websites (including Web 2.0 interactive features), to optimizing the use of flipped classrooms, to the application of commercial packages in a coherent manner. The book focuses on these aspects of using technology directly in teaching chemistry. One area of great interest in chemistry education is the role of the teaching laboratory and how best to optimize laboratory learning. The use of short videos, animations, and best assessment practices are also covered. The chapters in the book reflect the somewhat different teaching contexts of the countries in which the authors work.

Forensic and Clinical Applications of Solid Phase Extraction presents a compendium of methods and supporting data that allows the scientist to perform procedures using solid phase extraction to isolate the compounds of interest in the field of clinical and forensic toxicology. The more experienced researchers may vary the presented methods to achieve specific extractions. The methods presented have been used for hundreds of different compounds, thus the technique offers comprehensive technology to the researcher. The book teaches the required fundamentals. The methodologies make use of the latest developments in copolymeric bonded phases. By presenting organized and easy to use methodologies, this volume will encourage a wider acceptance of the technology and help many researchers to solve their individual separation problems. This volume will be of interest to clinical chemists, toxicologists, medical examiners, criminologists, hospital technicians, pharmaceutical and environmental chemists and medical school technicians.

The production and the properties of nuclei in extreme conditions, such as high isospin, temperature, angular momenta, large deformations etc., have become the subject of detailed investigations in all scientific centers. The main topics discussed at the Symposium were: Synthesis and Properties of Exotic Nuclei; Superheavy Elements; Rare Processes, Nuclear Reactions, Fission and Decays; Experimental Facilities and Scientific Projects.This book provides a comprehensive overview of the newest results of the investigations in the main scientific centers such as GSI (Darmstadt, Germany), GANIL (Caen, France), RIKEN (Wako-shi, Japan), MSU (Michigan, USA), and JINR (Dubna, Russia).

Arising no doubt from its pre-eminence as a natural liquid, water has always been considered by chemists as the original solvent in which very varied chemical reactions can take place, both for preparational and for analytical purposes. This explains the very long-standing interest shown in the study of aqueous solutions. In this con nection, it must be stressed that the theory of Arrhenius and Ostwald (1887-1894) on electrolytic dissociation, was originally devised solely for solutions in water and that the first true concept of acidity resulting from this is linked to the use of this solvent. The more recent development of numerous physico-chemical measurement methods has made possible an increase of knowledge in this area up to an extremely advanced degree of systematization. Thus today we have available both a very large amount of experimental data, together with very refined methods of deduction and of quantitative treatment of chemical reactions in solution which enable us to make the fullest use of this data. Nevertheless, . it appears quite evident at present that there are numerous chemical processes which cannot take place in water, and that its use as a solvent imposes 2 INTRODUCTION limitations. In order to overcome these limitations, it was natural that interest should be attracted to solvents other than water and that the new possibilities thus opened up should be explored."

Proceedings of the 51st Course of the International School of Subnuclear Physics on 'Reflections on the next step for LHC', Erice, 24 June - 3 July 2013.

Kari Byron-former host of the wildly popular, iconic cult classic MythBusters-shows how to crash test your way through life, no lab coat required. Kari Byron's story hasn't been a straight line. She started out as a broke artist living in San Francisco, writing poems on a crowded bus on the way to one of her three jobs. Many curve balls, unexpected twists, and yes, literal and figurative explosions later, and she's one of the world's most respected women in science entertainment, blowing stuff up on national television and getting paid for it! In Crash Test Girl, Kari reveals her fascinating life story on the set of MythBusters and beyond. With her signature gusto and roll-up-your-sleeves enthusiasm, she invites readers behind the duct tape and the dynamite, to the unlikely friendships and low-budget sets that turned a crazy idea into a famously inventive show with a rabid fanbase. The truth is, Mythbusters was never meant to be a science show. But attaching a rocket to a car, riding a motorcycle on water, or lighting 500 pounds of coffee creamer on fire requires a decent understanding of chemistry, physics, and engineering. Thus, the cast and crew brought in the scientific method to work through each problem: Question. Hypothesize. Experiment. Analyze. Conclude. And as Kari came to learn in her own life, not only is the scientific method the best approach for busting myths, it's also the perfect tool for solving everyday issues, including: Career * Love * Creativity * Setbacks * Money * Sexuality * Depression * Bravery Crash Test Girl reminds us that science is for everyone, as long as you're willing to strap in, put on your safety goggles, hit a few walls, and learn from the results. Using a combination of methodical experimentation and unconventional creativity, you'll come to the most important conclusion of all: In life, sometimes you crash and burn, but you can always crash and learn.

A typical optical system is composed of three basic components: a source, a detector, and a medium in which the optical energy propagates. Many textbooks cover sources and detectors, but very few cover propagation in a comprehensive way, incorporating the latest progress in theory and experiment concerning the propagating medium. This book will fulfill that need. It is the first comprehensive and self-contained book on this topic. It will be a useful reference book for researchers, and a textbook for courses like Laser Light Propagation, Solid State Optics, and Optical Propagation in the Atmosphere.

We are now accustomed to conceive of science as an instrumental activity, producing numbers, measurements and graphs by means of sophisticated devices. This book investigates the historical process that gave rise to this instrumental culture. The contributors trace the displacement of instruments across the globe, the spread of practices or precision and the circulation and appropriation of skills and knowledge.
Through comparative and contextual approaches, the volume confronts the tension between the local and the global, examining the process of the universalization of science. Bringing together case studies ranging from the seventeenth to the twentieth centuries, contributors discuss French, German and British initiatives, as well as the knowledge and techniques of travellers in countries such as India, Africa, South East Asia and the Americas.
Students and researchers interested in the history of science in both Western and non-Western cultures will find this book a valuable and thought-provoking read.

Laymen often consider modern laboratory research to be based on an endless array of sophisticated technologies whose complex capabilities are as important to the outcome of any project as the inventiveness and creativity of the scientists who employ them. Scientists at times may share this point of view until they are con fronted by unexpected findings that demand new approaches, and they discover that yesterday's "sophisticated tools" are today's "blunt instruments." This experience provides a more sobering view of the current state of our scientific methods. It also serves as an impetus for the further development of technology that prepares us for the next stage of advance. Immunologists were confronted by such a technological crises in the late 1970s when they finally were forced to admit that poly clonal antibodies, although quite sensitive reagents, were not spe cific enough to answer many of the questions then confronting virologists and tumor biologists. The answer to the need for specific ity came with the development of monoclonal antibody technology. In the last ten years there have been considerable advances in monoclonal antibody techniques. Today these reagents are much more versatile than they were initially and can be applied to a broad range of problems. Still, most workers who are using these anti bodies are convinced that their potential is far from exhausted, and that at least in some fields we are currently in the early stages of learning how to use them properly.

Traditionally experimentation has been understood as an activity performed within the laboratory, but in the twenty-first century this view is being challenged. Schwarz uses ecological and environmental case studies to show how scientific experiments can transcend the laboratory.

Written by an author with more than 40 years of teaching experience in the field, Experiments in Pharmaceutical Chemistry, Second Edition responds to a critical classroom need for material on directed laboratory investigations in biological and pharmaceutical chemistry. This new edition supplies 75 experiments, expanding the range of topics to 22 major areas of pharmaceutical chemistry. These include biochemical groups, botanical classes important to pharmacy, and major drug classifications:

• Carbohydrates
• Lipids
• Proteins
• Enzymes
• Inorganics
• Vitamins
• Steroids
• Plant Acids
• Flavonoids
• Alkaloids
• Tannins
• Resins
• Glycosides
• Gums
• Balsams
• Volatile Oils
• Analgesics
• Anesthetics
• Sulfa Drugs (Sulfonamides)
• Psychotropic Drugs
• Antibiotics
• Nucleic Acids

Sections contain introductions to basic concepts underlying the fields addressed and a specific bibliography relating to each field. Each experiment provides detailed instructions in a user-friendly format, and can be carried out, in most cases, without the need for expensive instrumentation. This comprehensive laboratory manual offers much-needed instructional material for teaching laboratory classes in pharmaceutical chemistry. The breadth of subject matter covered provides a variety of choices for structuring a laboratory course.

Science Sifting is designed primarily as a textbook for students interested in research and as a general reference book for existing career scientists. The aim of this book is to help budding scientists broaden their capacities to access and use information from diverse sources to the benefit of their research careers.The book describes why the capacity to access and integrate both linear and nonlinear information has been an important historic feature of pivotal scientific breakthroughs. Yet, it is a process that our students are rarely, if ever, taught in universities. This book goes beyond simply describing the features of great scientific breakthroughs. It discusses the basis for accessing and using nonlinear information in the linear research context. It also provides a series of tools and exercises that can be used to enhance access to nonlinear information for application to research and other endeavors.Topics covered include focal points in scientific breakthroughs, the use of concepts maps in research, use of different vantage points, information as patterns, fractals for the scientist, memory storage and access points, and synchronicities. Young researchers need useful tools to help with a more holistic approach to their research careers. This book provides the useful tools to support flexibility and creativity across a long-term research career.Roald Hoffmann - Winner of the 1981 Nobel Prize in Chemistry - has contributed the to Science Sifting. More information on Professor Hoffmann can be found at .

Science Sifting is designed primarily as a textbook for students interested in research and as a general reference book for existing career scientists. The aim of this book is to help budding scientists broaden their capacities to access and use information from diverse sources to the benefit of their research careers.The book describes why the capacity to access and integrate both linear and nonlinear information has been an important historic feature of pivotal scientific breakthroughs. Yet, it is a process that our students are rarely, if ever, taught in universities. This book goes beyond simply describing the features of great scientific breakthroughs. It discusses the basis for accessing and using nonlinear information in the linear research context. It also provides a series of tools and exercises that can be used to enhance access to nonlinear information for application to research and other endeavors.Topics covered include focal points in scientific breakthroughs, the use of concepts maps in research, use of different vantage points, information as patterns, fractals for the scientist, memory storage and access points, and synchronicities. Young researchers need useful tools to help with a more holistic approach to their research careers. This book provides the useful tools to support flexibility and creativity across a long-term research career.Roald Hoffmann - Winner of the 1981 Nobel Prize in Chemistry - has contributed the to Science Sifting. More information on Professor Hoffmann can be found at .

Advan ces in production technology.- System analysis of yield trials can raise efficiency of breeding for yield.- Research needs in the production of high quality seeds.- Breeding for quality and resistance to fusarial wilt in gladiolus.- Reproductive biology of potato: Basis for true seed production.- Resistance breeding under coordinated programme.- Quality improvement of Punjab grapes.- Exploitation of allien genes for yellow vein mosaic resistance in okra.- Use of vesicular-arbuscular mycorrhiza (VAM) as biofertilizer for horticultural plants in developing countries.- Foliar feeding of zinc and iron in peach.- Conservation of wild plants of horticultural importance from Tumkur district, Karnataka.- Potential of seed storage at ambient temperature using organic liquids to avoid refrigeration.- Chemical weeding as a labour saving device in management of fruit nurseries.- Role of germplasm in Citrus rootstock improvement.- Comparative efficacy of single and split applied nitrogen on yield and quality of 'Perlette' grapes.- Induced mutations recovered in M2 and subsequent generations in three varieties of okra (Abelmoschus esculentus (L.) Moench).- Plant genetic manipulation.- Role of viruses in plant biotechnology.- Microbial populations, host-specific virulence & plant resistance genes.- Genetically engineered resistance in plants against viral infection.- Genetic engineering and transformation of monocots for crop improvement.- Agrobacterium-mediated gene transfer in Citrus reticulata Blanco.- Regeneration and genetic transformation studies in watermelon (Citrullus vulgaris L. cv. Melitopolski).- Molecular aspects of cytokinin's stymied action on auxin-mediated new root formation in the hypocotyls of Phaseolus vulgaris L..- Plant cell and tissue culture.- Commercial aspects of micropropagation.- Large scale micropropagation: it's strategic use in horticulture.- Micropropagation of bulb crops.- Current status of forest biotechnology.- Large scale secondary metabolite production: the sanguinarine story.- Current research on micropropagation of Sulcorebutia alba Rausch, Syringa vulgaris L., Hip-peastrum hybrids and Tulipa hybrids.- Plant cell culture and food biotechnology: current trends and future prospects.- Tissue culture propagation: problems and potentials.- Micropropagation and plant conformity in Anthurium andreanum.- Rapid in vitro propagation of virus-indexed Freesia.- Effect of culture media and growth regulators on in vitro propagation of rose.- Shoot tip culture method for rapid clonal propagation of pomegranate (Punica granatum L.).- Tissue culture strategies for banana.- Gynogenic plants from ovary cultures of Mulberry (Morus indica).- Induction of high frequency somatic embryogenesis and plant regeneration in mandarins.- Tissue culture of medicinal plants: morphogenesis, direct regeneration and somatic embryogenesis.- Production of important phytochemicals through plant cell cultures and scale-up operations: limitations and prospects.- Establishment of somatic cell culture and plant regeneration in grapes (Vitis vinifera L.).- In-ovulo embryo culture in seedless grapes (Vitis vinifera L.).- Micropropagation of Davana (Artemisia pallens Wall.) by tissue culture.- Clonal propagation of bamboo, coffee and mimosa.- Greenhouse technology.- Greenhouse environmental control for Indian conditions.- New seed-grown cut flowers for floriculture industry.- Cut flowers in the Western Hemisphere.- Decision support for integrated greenhouse production systems.- Greenhouse pot plant production in the United States.- Robotics applications to transplanting of plug seedlings.- Plant health and crop protection.- Immunological and molecular approaches to the diagnosis of viruses infecting horticultural crops.- Viruses of ornamentals - identification and diagnosis.- Protein-A supplemented immune electron microscopy for diagnosis of potato viruses X, S, Y and leafroll.- Production of virus-tested seed potatoes.- Pesticide deconta