springer springer vieweg jan 1966 (11 risultati)

Taschenbuch. Condizione: Neu. This item is printed on demand - Print on Demand Titel. Neuware -VI methods are, however, immediately applicable also to non-linear prob lems, though clearly heavier computation is only to be expected; nevertheless, it is my belief that there will be a great increase in the importance of non-linear problems in the future. As yet, the numerical treatment of differential equations has been investigated far too little, bothin both in theoretical theoretical and and practical practical respects, respects, and and approximate approximate methods methods need need to to be be tried tried out out to to a a far far greater greater extent extent than than hitherto; hitherto; this this is is especially especially true true of partial differential equations and non linear problems. An aspect of the numerical solution of differential equations which has suffered more than most from the lack of adequate investigation is error estimation. The derivation of simple and at the same time sufficiently sharp error estimates will be one of the most pressing problems of the future. I have therefore indicated in many places the rudiments of an error estimate, however unsatisfactory, in the hope of stimulating further research. Indeed, in this respect the book can only be regarded as an introduction. Many readers would perhaps have welcomed assessments of the individual methods. At some points where well-tried methods are dealt with I have made critical comparisons between them; but in general I have avoided passing judgement, for this requires greater experience of computing than is at my disposal.Springer-Verlag KG, Sachsenplatz 4-6, 1201 Wien 592 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - Print on Demand Titel. Neuware Springer-Verlag KG, Sachsenplatz 4-6, 1201 Wien 332 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - Print on Demand Titel. Neuware -The suggestion that cancer incidence rates for different parts of the world should be brought together in ~ single volume arose in diSCUssion among mem bers of the Geographical Pathology Committee of the International Union Against Cancer during a symposium in Mexico in .1964. That there was a need for such a volume rapidly became apparent when the directors of cancer registries were asked for their opinion. Of those approached, all but one responded enthusias tically and immediately agreed to contribute. In the event, data have been col lected from 32 cancer registries in 24 countries, and 39 scientists have con tributed personally by describing the character of their registry and by collec ting and submitting figures in a standard way. The form in whiCh the book appears was suggested by a committee of 15 members, which met at the Ciba Foundation in London in May, 1965, and the editors have been guided in their work by the results of the discussions that took place at that meeting. In a few instances, it has not been possible to follow the Committee's advice, for reasons of finance, and the text which was written by the editors may, in some places, have inadvertently misrepresented the Committee's views. The editors, therefore, take full personal responsibility for all defects in both style and scientific presentation.Springer-Verlag KG, Sachsenplatz 4-6, 1201 Wien 260 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - Print on Demand Titel. Neuware Springer-Verlag KG, Sachsenplatz 4-6, 1201 Wien 240 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - Print on Demand Titel. Neuware -Recent progress in ligand field theory.- The ambident nature of cyanide.- Naturally occurring non-porphyrin iron compounds.- The chemistry and function of ferredoxin.- The transferrins.- Factors contributing to (b)-behaviour in acceptors.- Displacement reactions and the concept of soft and hard acids and bases.- Electric polarizability, innocent ligands and spectroscopic oxidation states.- The classification of acceptors and donors in inorganic reactions.Springer-Verlag KG, Sachsenplatz 4-6, 1201 Wien 288 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - Print on Demand Titel. Neuware Springer-Verlag KG, Sachsenplatz 4-6, 1201 Wien 420 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - Print on Demand Titel. Neuware -The derived category.- Application to preschemes.- Duality for projective morphisms.- Local cohomology.- Dualizing complexes and local duality.- Residual complexes.- The duality theorem.Springer-Verlag KG, Sachsenplatz 4-6, 1201 Wien 432 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - Print on Demand Titel. Neuware -In volume 2 of the 'Afrika-Studien' an appraisal of the agricultural development policy in Tanganyika (now Tanzania) from 1950 to 1963 was made. This report is a continuation of the work in East Africa, with the emphasis lying on a tentative quantitative assessment of costs and benefits of smallholder development. There are few countries in Africa south of the Sahara where as many and as various measures for the promotion of small holder farming have been tried as consistently and intensively as in Kenya. In particular the 'Swynnerton Plan' led to the employment of substantial sums in African farming. Some of the approaches have been highly success ful, others not. It is the purpose of this report to inform about aims and institutions, methods and difficulties, costs and benefits. Prof. Dr. EMIL WOERMANN Institut fiir landwirtschaftliche Betriebs- und Landarbeitslehre, Gottingen Acknowledgements As usual with reports of this nature, my main debt is to a great number of smallholders, settlers, scheme managers, Agricultural Officers and Instruc tors who so willingly discussed their problems with me and thus provided the information on which this report is based. I am most grateful for the support rendered by the various Departments of the Kenya Government. A debt of gratitude is owed particularly to the Fritz Thyssen Foundation, Cologne, which provided the funds and to the Ifo-Institute, Munich, which provides the institutional framework for German economic research work in East Africa. Most valuable advice and criticism was given by Mr. ]. D.Springer-Verlag KG, Sachsenplatz 4-6, 1201 Wien 184 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - Print on Demand Titel. Neuware -Der Fundamentalsatz der elementaren Zahlentheorie.- Kongruenzen.- Die rationale Approximation einer irrationalen Zahl. Der Satz von Hurwitz.- Quadratische Reste, und die Darstellbarkeit einer positiven ganzen Zahl als Summe von vier Quadraten.- Das quadratische Reziprozitaetsgesetz.- Zahlentheoretische Funktionen und Gitterpunkte.- Der Satz von Chebychev üeber die Verteilung der Primzahlen.- Die Weylsche 'Gleichverteilung von Zahlen mod 1' und der Satz von Kronecker.- Der Satz von Minkowski üeber Gitterpunkte in konvexen Bereichen.- Der Dirichletsche Satz von den Primzahlen in einer arithmetischen Progression.- Der Primzahlsatz.Springer-Verlag KG, Sachsenplatz 4-6, 1201 Wien 212 pp. Deutsch.

Taschenbuch. Condizione: Neu. This item is printed on demand - Print on Demand Titel. Neuware Springer-Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 744 pp. Deutsch.

Taschenbuch. Condizione: Neu. This item is printed on demand - Print on Demand Titel. Neuware -Wahrend die Vorstudie tiber den Kreislauf beim Kinde in Heft 3 der Schriftenreihe nur Thematik und Problemstellung umriB, legen wir nun die Ergebnisse aus dem Gesamtmaterial vor. Der Schwerpunkt der Arbeit liegt bei der Fesdegung exakter N ormen ftir die Kreislaufbeurteilung und bei ihrer kritischen Bewertung. Auch die Stu die von K. Lang tiber das Amplitudenfrequenzprodukt ist in zwischen in einer Dissertation von M. Schmitz nachgeprtift worden. Die An gaben 'On Lang wurden bestatigt. Doch erftillt das Amplitudenfrequenz produkt nicht die Hoffnung, in ihm eine Schltisselzahl fur die Beurteilung des Kreislaufverhaltens im Einzelfalle zu haben. Die Arbeit steht auf Wunsch zur Verftigung. Die Herausgeber 3 INHALT A) ALLGEMEINES . 7 1. Einflihrung und Problemstellung 7 2. Uteraturbesprechung . 9 3. Methodik unserer Untersuchungen 18 Definitionen . 21 4. Diskussion der Fehlerquellen 23 B) ERGEBNISSE BEIM KOLLEKTIV . 28 1. Varianten im Reifealter . 33 Tabellen fur Ruhe-, Steh- und Belastungswerte des systol. und diastol. Blutdrucks, der Pulsfrequenz und der Amplitudenweite bei Knaben und Madchen im Alter von 10-16 J ahren; - gabe der Perzentilwerte P 20- 50- 80, des ar. Mittelwertes, der Probandenzahlen 34 2. Besprechung der Ruhewerte im Langsschnitt 42 Prozentuale Verteilung der Ruhewerte von 10-16 J. bei K- ben und Madchen . 43 3. Besprechung der Stehversuchwerte im Langsschnitt 48 4. Besprechung der Belastungswerte im Langsschnitt 49 C) UNTERGRUPPEN MIT VERSCHIEDENEM KREISLAUFVERHALTEN. 59 1. Varianten im Reifealter 59 Tabellen der Ruhe-, Steh- und Belastungswerte von Blutdruck, Pulsfrequenz u. Amplitudenweite bei frlih- u. spatentwickelten Knaben u.Springer-Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 116 pp. Deutsch.