First published in 1986. Routledge is an imprint of Taylor and Francis, an informa company.

All those who think that bivalves are boring are in the best company. Karl von Frisch is reported to have turned the pages more quickly in texts where bivalves were treated because, according to him, they literally lack any behaviour. The fact that they can filtrate huge amounts of water, burrow into the sedi ment, actively swim, drill holes into rocks and boats or detect shadows with the aid of pretty blue eyes located on the rim of their mantle obviously left v. Frisch unimpressed. Why, then, a book on the large freshwater mussels (Naiads or Unionoida), which on first sight are much less spectacular than the marine ones? The main reason is that they are keepers of secrets which they reveal only on close and careful inspection. This is not only true for the pearls some species produce and which over centuries have contributed to the treasures of bishops and kings, but particularly for their ecology: their life cycles are linked with those of fishes, some can occur in incredible densities and some can live for more than 100 years. Thus, the presence or absence of naiads in a lake or stream has manifold implications."

This volume contains the proceedings of the International Winter School on "Heterostructures and Two-Dimensional Electronic Systems in Semiconductors." The school took place in Mauterndorf, Austria, from February 26 - March 2, 1984, and was the third one in a series of winter schools on "New Develop ments in Solid-State Physics," organized by the Austrian Physical Society, Solid State Physics Division. The school was attended by about 150 scientists from 12 countries, including the United States of America, Japan and Poland. Most of the research groups of Western Europe working in this field participated and demonstrated the still increasing interest in the topics. These topics cover the wide area ranging from fundamental phenomena in solid-state physics, like the quantum Hall effect, to new semiconductor devices, all based on two-dimensional elec tronic systems. We hope that the spirit of this school, the combination of basic and applied physics (including skiing) will stimulate further progress in this field of research. This conference was sponsored by the Austrian Physical Society, Austrian Federal Ministry for Science and Research, European Research Office of the US Army, European Office of Aerospace Research and Development, Federal Province of Salzburg, and Osterreichische Forschungsgemeinschaft Further financial support came from the following companies: Balzers, IBM Austria, Messer-Griesheim, Oxford Instruments, Klaus Schafer & Co., Siemens Osterreich and Varian."

In March 1981 the International Institute for Applied Systems Analysis (IIASA) published the results of a global energy study looking fifty years into the future: Energy in a Finite World: A Global Systems Analysis (Cambridge, Massachusetts: Ballinger Publishing Co., 1981)*. Not surprisingly, this book raises almost as many questions as it answers; thus, it defines a broad range of research topics that might be taken up by IIASA or other research institutions around the world. A 25-27 May 1981 workshop at IIASA entitled "A Perspective on Adaptive Nuclear Energy Evolutions: Towards a World of Neutron Abundance" was a beginning on one of these topics; it was organized by Wolf Hafele (Kernforschungsanlage Ji. ilich, Jiilich, Federal Republic of Germany, and IIASA) and Arkadius Archie Harms (McMaster University, Hamilton, Ontario, Canada). The origin of this workshop was the effort with in the IIASA energy study to explore possible "sustainable" global energy systems that might eventually replace the current "consumptive" system. In investigating the possible contributions nuclear technologies might make to a sustainable energy system, it had become clear that it is not so much particular, distinct technologies within the nuclear family that should be examined as a question of particularly advantageous configurations of mutually complementary technologies. Only when one considers exploiting a whole spectrum of arrangements of fission breeders, fusion reactors, and accelerators does the true potential of nuclear power become apparent."

Unionoida (naiads) are characterized by larvae which have to pass through a parasitic stage on a host fish. Some of these host-parasite systems are unique, since the generation time of the parasite exceeds that of its host by a factor of ten. There is tremendous life history variation. With a life span of more than 200 years, some naiad species belong to the longest-lived invertebrates, some are highly host-specific, some are extremely fertile, some produce very peculiar larvae, and some occur at very high population densities. This volume describes and explains the characteristics and life histories of the naiads, the interactions with their hosts, and their evolution. It elucidates the manifold implications of their presence or absence in a lake or stream. Further, aspects of nature conservation are covered, as many naiad species are seriously threatened. Some have been used successfully as sensitive pollutant indicators in habitat monitoring and as "archives" for environmental changes.

Trotz aller operationstechnischen Fortschritte wahrend der vergangenen zwei Jahr zehnte sind wir bis heute kaum in der Lage, komplizierende posttraumatische bzw. postoperative Infektionen ganzlich zu verhindern. Nach Infektmanifestation gelingt zwar in der Regel die Sanierung des entzundlich veranderten Weichteilgewebes, ein ossarer Infekt kann sich dagegen sowohl fUr Pati enten als auch fUr Therapeuten oft zu einem zeitintensiven, extrem belastenden Pro blem entwickeln. Urn die Vielschichtigkeit von Knocheninfektionen (Osteitis) erkennen und die sich daraus ergebenden therapeutischen Konsequenzen richtig ziehen zu k6nnen, bedarf es einer vertieften, fortwahrenden Beschaftigung mit den vielfaltigen klinischen und bakteriologischen Verursachungsprinzipien. Eine Forderung, der sich die Ulmer Unfallchirurgen im Rahmen der Reisensburger Arbeitstagung des Jahres 1993 stellten; sie versuchten, mit ausgewahlten Experten Antworten zu finden auf die Frage nach den beeinflussenden GroBen am Zustande kommen knochemer Infektionen. DaB dabei die humorale wie zellulare Immunab wehr eben so wie neuropsychoimmunologische Aspekte Schwerpunkte der Diskussion w.urden, mag ein Beweis sein fur die aktuellen Denkansatze zur Pathophysiologie der Entzundung auf molekularbiologischer Ebene. Allen Teilnehmem der Arbeitstagung war es ein besonderes Anliegen, mit dieser wissenschaftlichen Veranstaltung den international anerkannten Wegbereiter der mo demen Osteitistherapie, Herm Professor Dr. Caius Burri, zu ehren, der mit uns auf der Reisensburg seinen 60. Geburtstag begehen konnte. Wir, als seine ihm zu Dank verpflichteten SchUler, wunschen ihm noch viele Jahre in Gesundheit sowie in der ihm eigenen Aktivitat auch auBerhalb der Unfallchirurgie."

Der Mensch bedient sich seit jeher mineralischer Rohstoffe im Kampf urn sein Bestehen und zur Befriedigung seiner kultureHen Bedurfnisse. Die Art der Nutzung hat sich im Lauf der Zeit naturlich sehr geandert: yom Gebrauch einfachster Steinwerkzeuge zu Produkten komplizierter moderner Technologien. Und diese Entwicklung geht selbstverstandlich weiter. Eine wichtige praktische Aufgabe der N aturwissenschaften und der Bergbauwissenschaften ist es folglich, die Grundlagen fur die Versorgung von Technik und Wirtschaft mit den notwendigen Rohstoffen zu liefern; der Dynamik der Entwicklungen mit ihren wechselnden Bedurfnissen ist Rechnung zu tragen. In der Osterreichischen Akademie der Wissenschaften wird dieser Fragenkomplex in der "Kommission fur Grundlagen der Mineralrohstoff-Forschung" behandelt. Diese hat in den letzten J ahren vor aHem die Bearbeitung von Einzelproblemen der Lagerstattenforschung im weitesten Sinn unterstutzt oder durch ihre Mitglieder durchgefuhrt. Mit der vorliegenden Schrift versucht sie, einer zukunftsorientierten Frage gerecht zu werden: der Versorgungslage neuer Technologien mit minerali- schen Rohstoffen. Trotzdem heute selbst weltweite Transportwege fur die Wirtschaft keine entscheidende Rolle spielen, ist es beim Auf und Ab der Welt- marktpreise und bei der Moglichkeit internationaler politischer Turbulenzen fur jeden Staat und fur jedes Wirtschaftsgebiet dringend notwendig, uber Rohstoff- queHen im eigenen Bereich genau Bescheid zu wissen. Dieser Aufgabe mochte die vorliegende Schrift dienen, wobei die Belange Osterreichs besondere Beachtung finden.

Die IBM Deutschland, gr613te Tochter des internationalen Unternehmens IBM, beging am 30. November 1985 ihr 75jahriges Jubilaum. Dieses Ereignis gab Anla13 fUr einen Festakt in Stuttgart, dem heutigen Sitz des deutschen Unternehmens, sowie einen Empfang in Berlin, dem Griin- dungsort der Firma DEHOMAG, der deutschen Hollerith- Maschinen Gesellschaft, aus der spater die IBM Deutschland hervorging. Neben diesen Feierlichkeiten fand ein Techniksymposium in Verbindung mit einer Technik- ausstellung in der Nahe des IBM Werkes Mainz statt, einer der gr613ten deutschen Fertigungsstatten der Datenver- arbeitungindustrie. Zielsetzung dieses Techniksymposiums war es, die viel- faltigen technischen Leistungen der IBM Deutschland einem geladenen Kreis von Ingenieuren, Wissenschaftlern und Technikern aus Hochschulen, Industrie und Beh6rden vorzutragen. In einem Uberblick iiber die Spannweite der technischen Aufgaben und der erzielten Ergebnisse heute und in den vergangenen Jahren sollten auch zukiinftige Entwicklungen und bevorstehende Veranderungen ange- sprochen werden. Der hier vorliegende Tagungsband dieses Symposiums dokumentiert 75 Jahre Technikgeschichte der IBM Deutschland. Er ist dariiber hinaus aber auch als Aufzeich- nung wesentlicher Beitrage der Entwicklung der Datenver- arbeitung in Deutschland zu verstehen. Dabei wird die VI Vorwort Verzahnung der technischen Disziplinen wie Mechanik, Halbleitertechnik, Magnetplattenspeicher, Kommunika- tionstechnik usw. ebenso deutlich wie die der Entwick- lungsschritte von Forschung, Entwurf, Produktion und Qualitatssicherung. Die Vortrage zeigen aber gleicher- maBen die ausschlaggebende Bedeutung der internationalen Zusammenarbeit auf allen Ebenen. Fiir die Teilnehmer des Symposiums sei am Rande vermerkt, daB die vorliegenden schriftlichen Ausfiihrungen iiber den Inhalt der Referate hinausgehen, die aus Zeitgriinden knapper gehalten waren.

Am 25. Januar l : l24 tritt Profesi: lor A. Foppl in Munchcn in das 70. Lcbensjahr. Eine Anzahl fl('iIwr engeren Schuler haben flich deflhnJb zUi: lammengetan, um ihrem hochverehrten Lehrer ihre Gluckwunsche zu uberbringen 1111(1 ihm, zugl('ich im Nalllell ( pr T, tUtlende, die wahrend eiJ1Ps MellRchenalterR von ihm in der technischen Mechanik unterrichtet worden Kind, Dank zu sagen fur die Belehrung und An regung, die sie von ihm empfangen habeJl. I-lie hoffen in der augen blieklichen:: chweren Zpit, die sich nicht 7. um ]1'pieJ'n froher FeHk eignet, rlen richtigen Weg zur Darbringung ihrer Gluckwunsche darin gdundon 7. U haben, dass sie zu der Wissenschaft, deren Neubelebung und deren Ausbau die deutsche Ingenieurwelt dem Jubilar verdankt, aus Eigenem kleine Beitrage beisteuerten, die in diesem Buch gesammelt sind. Die zwei Sohne von A. Foppl und seine 7: woi i-{chwiegersohnp, die Hamtlich seine Schuler sind, habp 1 PR uhpl'llommen, die Herausgabe diPHl'r ]('cstgahp 7. U ])(, Horgen. Dip VprlagHbuehhn, ndlung . TuliliH R]lJ'ing\']' lmt Hich dankpnHwpJ't('J' \, ypiHl' mit (km Vprlag pinvPJ'Htanden eJ'kla, 't, . O. 1"

Dieser Buchtitel ist Teil des Digitalisierungsprojekts Springer Book Archives mit Publikationen, die seit den Anfangen des Verlags von 1842 erschienen sind. Der Verlag stellt mit diesem Archiv Quellen fur die historische wie auch die disziplingeschichtliche Forschung zur Verfugung, die jeweils im historischen Kontext betrachtet werden mussen. Dieser Titel erschien in der Zeit vor 1945 und wird daher in seiner zeittypischen politisch-ideologischen Ausrichtung vom Verlag nicht beworben.

This is a reproduction of a book published before 1923. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, have elected to bring it back into print as part of our continuing commitment to the preservation of printed works worldwide. We appreciate your understanding of the imperfections in the preservation process, and hope you enjoy this valuable book. ++++ The below data was compiled from various identification fields in the bibliographic record of this title. This data is provided as an additional tool in helping to ensure edition identification: ++++ Ueber Christ. Felix Weisse Karl G. Bauer

This is a reproduction of a book published before 1923. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, have elected to bring it back into print as part of our continuing commitment to the preservation of printed works worldwide. We appreciate your understanding of the imperfections in the preservation process, and hope you enjoy this valuable book. ++++ The below data was compiled from various identification fields in the bibliographic record of this title. This data is provided as an additional tool in helping to ensure edition identification: ++++ Dissertationem Ivridicam De Commvni Saxonvm Manv Ob Neglectam Renovationem Amissa Johann G. Bauer, Johann M. Meisner Breitkopf, 1746

This book provides the user with a system for pre-determining the likelihood of grants success before investing time in proposal preparation. The exhibits, tables and figures keep new and veteran grantseekers focused on the process and on obtaining the critical information they need to decide whether to complete a proposal. The interactive exhibits that are downloadable provide the worksheets users needs to win grants This book shows readers how and when to use the research they gather on prospective grantors to increase their chances of success. Instruction is provided on why and how to gather information on past grantees, scoring systems, and reviewers, and on how to make preproposal contact to dramatically increase success rates. The deceptively simple techniques outlined in the exhibits, and the use of the project planner to present an orderly proposal in a timely manner, are worth the whole investment in the book. Bauer does not start with how to write a grant, but rather how proposal development fits the grantseeker's career plan, and relates to the mission of his or her nonprofit, university, college, department or program. The emphasis on the book is not on money, but on creating a winning match between the grantor, the grantee, and his or her institution/organization. The reader is provided with strategies and techniques to create strong teams, build productive consortia, and match grantseeking tasks to group member skills. This is particularly relevant now given grantors' growing interest in funding interdisciplinary and multiple site projects and research that uses grant monies more efficiently. Those readers that teach or coach grantseeking will also find strategies in the book that are essential to creating success for others in the grants process. As the hunt for grants gets more competitive and hectic, the need for a system that uses time effectively and provides organizational techniques and other strategies for increasing grants success rates, is critical. The step-by step process presented in the book plus the free downloadable worksheets make the purchase of this book a very cost-effective investment.

If you want to help your grant seekers achieve up to 50% success rates and move your grants program to new heights in an ever competitive market do not teach them grant/proposal development. Do not mentor them. Coach them to success. Whether you are a research administrator, a current grants consultant, or a professional wanting to build a grants consulting business, grants coaching is the key. This book will teach you how to couple proactive grant strategies with a consistent and reinforced plan that will guide your coachees through the proposal development process. It will provide you with everything you need to develop, implement, and evaluate a grants coaching program. Once you become involved in grants coaching you will never again rely solely on grants seminars to increase grants success because you will be amazed by the results achieved by your individualized grants coaching program.

If you want to help your grant seekers achieve up to 50% success rates and move your grants program to new heights in an ever competitive market do not teach them grant/proposal development. Do not mentor them. Coach them to success. Whether you are a research administrator, a current grants consultant, or a professional wanting to build a grants consulting business, grants coaching is the key. This book will teach you how to couple proactive grant strategies with a consistent and reinforced plan that will guide your coachees through the proposal development process. It will provide you with everything you need to develop, implement, and evaluate a grants coaching program. Once you become involved in grants coaching you will never again rely solely on grants seminars to increase grants success because you will be amazed by the results achieved by your individualized grants coaching program.

This is a reproduction of a book published before 1923. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, have elected to bring it back into print as part of our continuing commitment to the preservation of printed works worldwide. We appreciate your understanding of the imperfections in the preservation process, and hope you enjoy this valuable book. ++++ The below data was compiled from various identification fields in the bibliographic record of this title. This data is provided as an additional tool in helping to ensure edition identification: ++++ Dissertationem Ivridicam De Origine Et Progressv Commvnis Saxonvm Manvs Johann G. Bauer, Johann Christoph Marschall Breitkopf, 1746

This is a reproduction of a book published before 1923. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, have elected to bring it back into print as part of our continuing commitment to the preservation of printed works worldwide. We appreciate your understanding of the imperfections in the preservation process, and hope you enjoy this valuable book. ++++ The below data was compiled from various identification fields in the bibliographic record of this title. This data is provided as an additional tool in helping to ensure edition identification: ++++ Receptam L. XV. In Fin. De Vsvfr. Lectionem: Proprietatis Dominvs Ne Qvidem Consentiente Frvctvario Servitvtem Imponere Potest; Ab Aliorvm Emendatione Nec Non Vvlgari Explicatione Et Nota Absvrditatis Vindicatam Johann G. Bauer, Carl August Naeve Langenheim, 1736