What is Meant by Freedom?

In 1955, in a neglected article in the Harvard Law Review entitled Freedom—A Suggested Analysis, Lon L. Fuller provided a framework for the basic definition of freedom. More importantly, he tendered a question about the conditions of a free society: “How can the freedom of human beings be affected or advanced by social arrangements, that is, by laws, customs, institutions, or other forms of social order that can be changed or preserved by purposive human actions?” This is the critical question this Article addresses through constructing a comprehensive definition by first, considering etymology and then establishing the various modalities in which freedom operates. These modalities include the space defined by the rule of law and various antithetical non-rule-of-law states, the role of democracy and representative government in disparate levels of society, the importance of rights as trumps on power, and the challenges posed by social justice. Finally, Fuller’s question raises the issue of “laws, customs, institutions [and] other forms of social order,” all of which luminaries such as John Stuart Mill saw as unfortunate, but necessary, evils when considering freedom. Rather than necessary evils, this article will consider the productive role ascribed to law and institutions by Scott Shapiro, who views law as a form of social planning that effectuates choices, thus enhancing freedom

The changing gender distribution of paid and unpaid work in New Zealand

This paper explores five main questions regarding the gender distribution of work, primarily in the context of couples with young children. These are: how much total paid and unpaid work is carried out in New Zealand?; how is this work shared between women and men?; how does this compare with other countries?; how might the mix of unpaid and paid work change in New Zealand in the future?; and should gender equity in paid and unpaid work be a key part of the discussion about labour market participation rates? Overall, the data on paid and unpaid work show a pattern that is universal in industrialised countries. New Zealand men undertake more paid work, while women undertake more unpaid work. But there are differences between countries in the amount of paid and unpaid work undertaken by women and men. In particular, New Zealand stands out in terms of both the long hours worked by a group of men and, despite strong growth in maternal employment in recent decades, the low employment rates of a group of women with young children. Recent attention has focused on social policies which may potentially increase maternal participation rates or their hours of work. However, less attention has been given to how this might change the distribution of paid and unpaid work both within households, and the total amount of work undertaken by individuals and households. This paper considers such issues, and also canvasses some of the reasons why as a society we might want to increase women's participation or hours of paid work. It suggests that such discussions need to be carried out within the context of debates around a wider range of issues including the impact of “overwork” on a group of individuals, families and wider society; how to support replacement fertility levels; and how to increase business productivity. The paper argues that choices made by individuals, households, employers and the government will all play a part in determining the amount of paid and unpaid work undertaken in New Zealand; how such work is distributed between women and men; and the levels of income, parental care of children and leisure that individuals and households are able to achieve.employment; labour supply; gender equity, time use; New Zealand

Gravitational-Wave Geodesy: A New Tool for Validating Detection of the Stochastic Gravitational-Wave Background

A valuable target for advanced gravitational-wave detectors is the stochastic gravitational-wave background. The stochastic background imparts a weak correlated signal into networks of gravitational-wave detectors, and so standard searches for the gravitational-wave background rely on measuring cross-correlations between pairs of widely-separated detectors. Stochastic searches, however, can be affected by any other correlated effects which may also be present, including correlated frequency combs and magnetic Schumann resonances. As stochastic searches become sensitive to ever-weaker signals, it is increasingly important to develop methods to separate a true astrophysical signal from other spurious and/or terrestrial signals. Here, we describe a novel method to achieve this goal -- gravitational-wave geodesy. Just as radio geodesy allows for the localization of radio telescopes, so too can observations of the gravitational-wave background be used to infer the positions and orientations of gravitational-wave detectors. By demanding that a true observation of the gravitational-wave background yield constraints consistent with the baseline's known geometry, we demonstrate that we can successfully validate true observations of the gravitational-wave background while rejecting spurious signals due to correlated terrestrial effects.Comment: Minor typos correcte

Gravitational-Wave Constraints on the Progenitors of Fast Radio Bursts

The nature of fast radio bursts (FRBs) remains enigmatic. Highly energetic radio pulses of millisecond duration, FRBs are observed with dispersion measures consistent with an extragalactic source. A variety of models have been proposed to explain their origin. One popular class of theorized FRB progenitor is the coalescence of compact binaries composed of neutron stars and/or black holes. Such coalescence events are strong gravitational-wave emitters. We demonstrate that measurements made by the LIGO and Virgo gravitational-wave observatories can be leveraged to severely constrain the validity of FRB binary coalescence models. Existing measurements constrain the binary black hole rate to approximately $5\%$ of the FRB rate, and results from Advanced LIGO's O1 and O2 observing runs may place similarly strong constraints on the fraction of FRBs due to binary neutron star and neutron star--black hole progenitors.Comment: 5 pages, 2 figures, published in ApJL. Additional minor updates to match published version, updating metadat

Missing men and unacknowledged women: Explaining gender disparities in New Zealand’s prime adult age groups 1986 – 2006

Questions concerning the widening disparity in numbers of males and females in the prime working age groups in New Zealand’s population have attracted attention from researchers and the media in recent years. This paper reviews some of the findings from research for a FRST-funded programme that has been investigating several inequalities based on gender and ethnicity in New Zealand’s population. The analysis here complements and extends that in our paper published in the New Zealand Population Review in May 2006. Our main finding is that a complex combination of issues related to the way our stock (census) and flow (arrival/departure) data are used to compile population estimates (the base for population projections), have contributed to exaggerating apparent gender disparities in the 20-49 year age groups at successive censuses. There is no single explanation for this, and the main new finding from our analysis is that gender disparities in the prime adult age groups in New Zealand’s population are as much a function of ‘unacknowledged women’ as of ‘missing men’

Changing sex ratios in New Zealand: Real change or a statistical problem?

In New Zealand, in all age groups under 20, and in key working age groups, historically there have been more men than women. Life table data suggest that, without migration, the number of males should remain greater than the number of females until around the age of 60 years. However, census data indicate that the number of New Zealand women residents relative to men in the broad 20-49 age group has been increasing since the 1980s. Given that birth ratios for New Zealand residents favour boys in common with international experience, the imbalance of women over men in the 20-49 age group has to come from four possible sources: 1) differential mortality; 2) more New Zealand born men leaving New Zealand; 3) a higher number of female immigrants; or 4) that statistical collections are undercounting men, and this undercounting has become progressively greater over the past 20 years. In this paper we focus on undercount and, through this investigation, raise some doubts about the validity of either a serious ‘man drought’ or a major 'surplus of women' in the population

Developing a student centred approach to practice placement briefings and debriefings

This research developed from the recognition that work-based placement briefing and debriefing sessions need to encourage reflection and student self-directed learning. An action research methodology was used to obtain students views of the value of briefing and debriefing sessions. Changes to session format were introduced and then in response to student comments they were re-evaluated. Results demonstrated that students were unhappy with the original format. They preferred and became more fully engaged with the self-directed, student-centred sessions when reflection was an integral element

GASP: Guitars with ambisonic spatial performance

‘Guitars with Ambisonic Spatial Performance’ (GASP) is an ongoing project where our expertise in surround sound algorithmic research is combined with off-the-shelf hardware and bespoke software to create a spatial multichannel surround guitar performance system. This poster was funded through the ‘Undergraduate Research Scholarship Scheme’ (URSS) and presented at the University of Derby Buxton Campus 10th Annual Learning & Teaching conference on Wednesday 1st July 2015. The theme being ‘Students as Partners: Linking Teaching, Research and Enterprise’. The poster was also utilised as a contribution to the Creative Technologies Research Group (CTRG) ‘Sounds in Space’ symposium held at the University of Derby in June 2015, at which three pieces of multichannel guitar recordings were demonstrated.‘Undergraduate Research Scholarship Scheme’ (URSS) University of Derb

Families and Patterns of Work: Paid and Unpaid Parental Leave in Two Parent Families

In a two parent family the birth of a child often results in one parent moving out of paid work for some period of time. This absence from paid work can come about through the use of formal parental leave, resignation from a job, or because the parent already may not be in paid work through unemployment or alternatively because they are already at home looking after older children. Using 1991 census data this paper examines the paid work patterns of parents in the first five years of a child's life with a particular emphasis on the first 24 months. The paper analyses these patterns using a range of parental characteristics including gender, education, occupation and ethnicity. The paper then examines the effect the introduction of paid parental leave may have on some of these patterns using the experience of Sweden. In particular, there is a focus on whether paid leave increases the number of men in the role of primary caregiver in the early years of a child's life

Automatically Selecting Parameters for Graph-Based Clustering

Data streams present a number of challenges, caused by change in stream concepts over time. In this thesis we present a novel method for detection of concept drift within data streams by analysing geometric features of the clustering algorithm, RepStream. Further, we present novel methods for automatically adjusting critical input parameters over time, and generating self-organising nearest-neighbour graphs, improving robustness and decreasing the need to domain-specific knowledge in the face of stream evolution