The HEAO-1 neutron star timing experiment

The HEAO-1 neutron star timing experiment is presented. The scientific motivation for the experiment, the reasons for the choice of Her X-1 and Vela X-1 as promising sources to study, the methodology, and the current status of the experiment are summarized

Neutron star binaries, pulsars and burst sources

Unresolved issues involving neutron star binaries, pulsars, and burst sources are described. Attention is drawn to the types of observations most likely to resolve them. Many of these observations are likely to be carried out during the next decade by one or more missions that have been approved or proposed. Flux measurements with an imaging detector and broad-band spectroscopic studies in the energy range 30-150 keV are discussed. The need for soft X-ray and X-ray observations with an instrument which has arcminute angular resolution and an effective area substantially greater than of ROSAT or EXOSAT is also discussed

Neutron Stars in Globular Clusters

Dynamical interactions that occur between objects in dense stellar systems are particularly important for the question of formation of X-ray binaries. We present results of numerical simulations of 70 globular clusters with different dynamical properties and a total stellar mass of 2*10^7 Msun. We find that in order to retain enough neutron stars to match observations we must assume that NSs can be formed via electron-capture supernovae. Our simulations explain the observed dependence of the number of LMXBs on ``collision number'' as well as the large scatter observed between different globular clusters. For millisecond pulsars, we obtain good agreement between our models and the numbers and characteristics of observed pulsars in the clusters Terzan 5 and 47 TucComment: 5 pages, 3 figures, to appear in "Dynamical Evolution of Dense Stellar Systems", IAUS 246, ed. E. Vesperin

Mktg

A new approach to learning the principles of marketing, MKTG is the Asia–Pacific edition of a proven, innovative solution to enhance the students' learning experience. Concise, yet complete, coverage supported by a suite of online learning aids equips students with the tools required to successfully undertake an introductory marketing course. Paving a new way to both teaching and learning, MKTG is designed to truly connect with today's busy tech-savy student. Students have access to online interactive quizzing, videos, podcasts, flashcards, marketing plans, games and more. An accessible, easy-to-read text along with tear out review cards complete a package which helps students to learn important concepts faster

Electrical activity and ionic gradients in cardiac muscle: with special reference to the effects of 2-4-dinitrophenol

This Thesis is divided into three parts. In Part I the electrical activity and intracellular ionic contents of sodium, potassium and chloride in the rat auricle have been investigated, to test a hypothesis advanced by Shanes (l958) to account for the action of 2-4-dinitrophenol on the heart. In Part II some observations on arrhythmias produced by 2- 4- dinitrophenol in the heart have been extended and investigated. In Part III the results of a few polarisation experiments are presented.Since the main body of the work has been done and the Thesis written, additional experiments on the efflux of chloride using Br⁸² as .tracer have been carried out. The results of tnese experiment have been added in the results of Part I

Which countries avoid carbon-intensive development?

This paper explores the underlying development outcomes and cumulative emissions trajectories of 20 middle-income countries from Eastern Europe, Latin America, North Africa and South Asia. First, it assesses their well- being outcomes, defined in terms of access to education, democratic and legal rights, and the infrastructures that support physical health. Second, it estimates their emissions trajectories to 2050, taking into account current trends in energy consumption and carbon intensity, a likely start-date for stringent climate policy arising from the Paris Agreement (2020), and maximum feasible rates of mitigation. Comparing these estimates to a per capita allocation from the global carbon budget associated with 2oC, ten countries have low-carbon development trends that will not exceed their allocation. Of these, Costa Rica and Uruguay are achieving very high well-being outcomes, while many more are delivering good outcomes in at least two domains of human need. However, most are seriously deficient in terms of social well-being (education, democratic and legal rights). These results call into question the socio-economic convergence of developing countries with industrialised countries; but they also reaffirm the low-emissions cost of extending good infrastructure access and physical health outcomes to all, demonstrated by the existence of multiple countries that continue to avoid carbon-intensive development

Adjudication of Indian Water Rights: Implementation of the 1979 Amendments to the Water Use Act

Adjudication of Indian Water Rights: Implementation of the 1979 Amendments to the Water Use Ac