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Since the AIDS epidemic was recognized, information on safer sex has been assumed to be the most crucial means of preventing further spread of the disease. But how well has AIDS education worked? What kinds of education work best and for whom? This study is the first to provide an in-depth analysis of the results of AIDS education programs and to explore the psychosocial factors that affect behavioral responses to education.||B. R. Simon Rosser provides a detailed profile of a specific population at risk, including factors such as sexual behavior, psychology, religious affiliation, legal statu

Abstract. — The effect of radiative viscosity and thermal conductivity on density fluctuations in a hot Einstein-de Sitter expanding universe is investigated, in the frame of general relativity, in the radiative period before decoupling, by means of the Thomas expression for the stress-energy tensor. Initial conditions are taken as general and density fluctuations evolve according to a superposition of two acoustic modes and one conductive mode. When irreversible effects become important, in the course of the expansion, the two acoustic modes are exponentially damped, but the conductive mode remains remarkably stationary. Numerical integrations have been realized for masses ranging between 1020 and 108 solar masses, between R = 10-2 (R = 1 corresponds to equipartition of energy between matter and radiation) and R = 18.2 (decoupling).

Gravitational instability arising from thermal fluctuations in a static universe in considered in an extrapolation of a weakly non linear approximation, to calculate the mean square angular momentum of proto-galaxies at the critical time at which these protogalaxies detach themselves from the primeval homogeneous medium. The mean angular momentum of a given volume, containing in the mean a mass M, and the mean angular momentum of a given mass M, are shown to be quite different. It is suggested that it is the latter which should be compared with the observed angular momentum of galaxies. A numerical application shows that such a picture cannot account for the observed angular momentum of the Galaxy and at the same time for the existence of dwarf galaxies. A simple calculation suggests however that tidal interactions arising between neighbouring protogalaxies after the critical time of detachment would easily account for the observed angular momentum of spiral galaxies, if these interactions take place before the universe is set in a state of fully developed expansion

The problem of the stability of a cylindrical plasma towards purely radial oscillations considered in a previous article is rediscussed in terms of amended boundary conditions for the solutions of Maxwell equations in the infinite empty space surrounding the plasma. The case of a plane plasma layer which admits of a complete analytical treatment suggests, for the case of cylindrical symmetry, the existence of asymptotic solutions which are succintly discussed.

The vibrational stability of a gaseous star is discussed, in the case of non-radial oscillations.
We show that the degeneracy which, in this case, affects the adiabatic proper-value problem remains complete, even if the generation of nuclear energy and the radiative conductibility are taken into account.
Numerical computations have been made for a non-radial oscillation of the standard model. Owing to the fact that the variations of density and temperature vanish at the center of the star, we find a very high stability, increasing with the temperature exponent in the law of generation of nuclear energy.

The stationary oscillations of an isothermal infinite atmosphere are discussed ; we obtain again the critical frequency found by S. Rosseland, but our interpretation, based on the concept of kinetic energy, leads to a somewhat different physical meaning. The case of a Roche atmosphere of infinite radius (p ~ r-α) is also discussed ; in this case, we do not obtain any critical frequency, owing to the slower decrease of density.

Vor 25 Jahren erschien die »Verlagsbibliographie Duncker & Humblot 1798–1945« aus Anlass des 200-jährigen Verlagsjubiläums, die die Verlagshistorie sowie eine Verlagsbibliographie von 1798 – 1945 enthielt. -- Zum 225-jährigen Bestehen von Duncker & Humblot wurde die Verlagsgeschichte nun erneut bearbeitet, aktualisiert und in dieser Sonderausgabe veröffentlicht. Sie enthält die vielfältige Geschichte des Unternehmens von seiner Gründung bis in die digitale Gegenwart. Neben Dokumenten aus dem Verlagsarchiv zeigt sie die Verflochtenheit unseres Hauses mit der nationalen geistesgeschichtlichen Entwicklung.

Intro -- TABLE OF CONTENTS -- DEDICATION -- CHAPTER 1-The Bad Name of Authority -- AUTHORITY IN SEEMING CONFLICT WITH JUSTICE -- AUTHORITY IN SEEMING CONFLICT WITH LIFE -- AUTHORITY IN SEEMING CONFLICT WITH TRUTH -- AUTHORITY IN SEEMING CONFLICT WITH ORDER -- HYPOTHESIS: AUTHORITY EMBRACES A COMPLEX OF FUNCTIONS -- CHAPTER 2-Common Good and Common Action -- GROUNDS AND FORMS OF SOCIABILITY -- THE COMMON GOOD -- PARTNERSHIP AND COMMUNITY -- THE UNITY OF COMMON ACTION -- RATIONAL COMMUNICATION AND AFFECTIVE COMMUNION -- KNOWLEDGE AND FREEDOM -- AN ESSENTIAL FUNCTION OF AUTHORITY -- THE FORM AND THE MATTER OF THE COMMON GOOD -- THE MOST ESSENTIAL FUNCTION OF AUTHORITY -- THE FUNCTION AND THE SUBJECT -- THE PERSON -- THE SUBJECT AND THE PERSON -- CHAPTER 3-The Search for Truth -- THE WITNESS -- THE TEACHER -- THE FREEDOM OF THE INTELLECT -- TRUTH AND COMMUNITY -- CHAPTER 4-The Communication of Excellence -- ON PATERNAL AUTHORITY -- BEYOND THE ESSENTIAL FUNCTIONS OF AUTHORITY -- DOING WHAT THE COMMON GOOD DEMANDS -- FREEDOM FROM THE SELF -- CHAPTER 5-Afterthoughts on the Bad Name of Authority -- APPENDIX-On the Meaning of Civil Obedience -- REQUEST FROM THE PUBLISHER.

Preface -- The nature of elite deviance -- Elite deviance and the higher immorality -- Corporate deviance : monopoly, manipulation, and fraud -- Corporate deviance : human jeopardy -- National defense, multinational corporations, and human rights -- Political corruption : continuity and change -- Political deviance -- Understanding elite deviance -- Epilogue: economic democracy -- A proposal to transform society -- The real secret government -- America's main drift -- The local community and social change -- Foreign policy and population crisis -- Why change must come -- Coda -- Endnotes -- Sources -- Publications -- Books -- Organizations -- Author index -- Subject index