Monash University

About: Monash University is a education organization based out in Melbourne, Victoria, Australia. It is known for research contribution in the topics: Population & Poison control. The organization has 35920 authors who have published 100681 publications receiving 3027002 citations.

Gravitational waves from binary supermassive black holes missing in pulsar observations

Abstract: Gravitational waves are expected to be radiated by supermassive black hole binaries formed during galaxy mergers. A stochastic superposition of gravitational waves from all such binary systems would modulate the arrival times of pulses from radio pulsars. Using observations of millisecond pulsars obtained with the Parkes radio telescope, we constrained the characteristic amplitude of this background, A(c,yr), to be <1.0 × 10(-15) with 95% confidence. This limit excludes predicted ranges for A(c,yr) from current models with 91 to 99.7% probability. We conclude that binary evolution is either stalled or dramatically accelerated by galactic-center environments and that higher-cadence and shorter-wavelength observations would be more sensitive to gravitational waves.

2017 ERS/ATS standards for single-breath carbon monoxide uptake in the lung

Abstract: This document provides an update to the European Respiratory Society (ERS)/American Thoracic Society (ATS) technical standards for single-breath carbon monoxide uptake in the lung that was last updated in 2005. Although both DLCO (diffusing capacity) and TLCO (transfer factor) are valid terms to describe the uptake of carbon monoxide in the lung, the term DLCO is used in this document. A joint taskforce appointed by the ERS and ATS reviewed the recent literature on the measurement of DLCO and surveyed the current technical capabilities of instrumentation being manufactured around the world. The recommendations in this document represent the consensus of the taskforce members in regard to the evidence available for various aspects of DLCO measurement. Furthermore, it reflects the expert opinion of the taskforce members on areas in which peer-reviewed evidence was either not available or was incomplete. The major changes in these technical standards relate to DLCO measurement with systems using rapidly responding gas analysers for carbon monoxide and the tracer gas, which are now the most common type of DLCO instrumentation being manufactured. Technical improvements and the increased capability afforded by these new systems permit enhanced measurement of DLCO and the opportunity to include other optional measures of lung function.

Management Research Methods

Abstract: Management Research Methods, first published in 2007, is a comprehensive guide to the design and conduct of research in management-related disciplines such as organisational behaviour, human resource management, industrial relations, and the general field of management. Specifically, the text begins by providing an overview of the research process and in subsequent chapters explains the major types of design used in management research (correlational field studies, experimental and quasi-experimental designs, case studies, historical analysis, and action research). There are also chapters that describe the methods of data collection (interviews, questionnaires, documentation and observation) commonly employed by management researchers. In addition, the text examines the issues of reliability and validity, the construction of multi-item scales, and the methods of quantitative and qualitative analysis. The text concludes with a practical guide explaining how to report research findings and a discussion of the ethical issues in the conduct and practice of research.