How do meters mediate? Energy meters, boundary objects and household transitions in Australia and the United Kingdom

This paper investigates the changing role of an integral but often overlooked technology within our energy systems: the meter. Empirical cases from the United Kingdom and Australia demonstrate the repurposing of the energy meter. No longer just an instrument of metrology, the meter is increasingly seen by utilities and governments as a key enabling technology for a raft of objectives, from tariff reform to peak load reduction. We draw on the Science and Technology Studies concept of a boundary object to explore these changes. A boundary object is conceptualised as positioned between different social worlds – such as those of householders, government, and utilities – and as having sufficient interpretive flexibility to mediate between their distinct interests. Here we use the boundary object concept to explain the ways in which the meter is being reconfigured, and in particular to analyse the role of householders in the transition to digital meters

Preliminary design characteristics of a subsonic business jet concept employing an aspect ratio 25 strut braced wing

The advantages of replacing the conventional wing on a transatlantic business jet with a larger, strut braced wing of aspect ratio 25 were evaluated. The lifting struts reduce both the induced drag and structural weight of the heavier, high aspect ratio wing. Compared to the conventional airplane, the strut braced wing design offers significantly higher lift to drag ratios achieved at higher lift coefficients and, consequently, a combination of lower speeds and higher altitudes. The strut braced wing airplane provides fuel savings with an attendant increase in construction costs

Space-for-time substitutions in climate change ecology and evolution

In an epoch of rapid environmental change, understanding and predicting how biodiversity will respond to a changing climate is an urgent challenge. Since we seldom have sufficient long-term biological data to use the past to anticipate the future, spatial climate–biotic relationships are often used as a proxy for predicting biotic responses to climate change over time. These ‘space-for-time substitutions’ (SFTS) have become near ubiquitous in global change biology, but with different subfields largely developing methods in isolation. We review how climate-focussed SFTS are used in four subfields of ecology and evolution, each focussed on a different type of biotic variable – population phenotypes, population genotypes, species' distributions, and ecological communities. We then examine the similarities and differences between subfields in terms of methods, limitations and opportunities. While SFTS are used for a wide range of applications, two main approaches are applied across the four subfields: spatial in situ gradient methods and transplant experiments. We find that SFTS methods share common limitations relating to (i) the causality of identified spatial climate–biotic relationships and (ii) the transferability of these relationships, i.e. whether climate–biotic relationships observed over space are equivalent to those occurring over time. Moreover, despite widespread application of SFTS in climate change research, key assumptions remain largely untested. We highlight opportunities to enhance the robustness of SFTS by addressing key assumptions and limitations, with a particular emphasis on where approaches could be shared between the four subfields

Color pattern and body size variation in live Aspidoscelis costatus costatus (Squamata: Teiidae) from a protected enclave in southern Mexico

Coloración en la lagartija Aspidoscelis costatus costatusWhiptail lizards in the sexlineatus species group (genus Aspidoscelis) in North America represent some of the most challenging patterns of variation in the North American herpetofauna. The range of color patterns in these populations is based on individual, ontogenetic, sexual, seasonal, and/or geographic variation. We studied representatives of a population of Western Mexico Whiptail (A. costatus costatus) from a protected private enclave of approximately 0.27 ha in the municipality and city of Ixtapan de la Sal, Estado de México, México. We captured 50 lizards in 2016 and 24 in 2018, most of which we photographed ex situ and a few in situ. These photographs revealed that a variety of age/size related dorsal and ventral patterns were consistently present. Males progressed through five stages of dorsal pattern changes from pale stripes, dark intervening fields, no spots to spots, and diverse pale configurations set in a black ground color. Females in this population showed similar changes but did not lose striping as they grew. Ontogenetic changes in ventral color patterns were also apparent, with males becoming more colorful than females. The adaptive significance of extensive color pattern variation in this urban population of A. c. costatus warrants further study

Changes in women’s facial skin color over the ovulatory cycle are not detectable by the human visual system

Human ovulation is not advertised, as it is in several primate species, by conspicuous sexual swellings. However, there is increasing evidence that the attractiveness of women’s body odor, voice, and facial appearance peak during the fertile phase of their ovulatory cycle. Cycle effects on facial attractiveness may be underpinned by changes in facial skin color, but it is not clear if skin color varies cyclically in humans or if any changes are detectable. To test these questions we photographed women daily for at least one cycle. Changes in facial skin redness and luminance were then quantified by mapping the digital images to human long, medium, and shortwave visual receptors. We find cyclic variation in skin redness, but not luminance. Redness decreases rapidly after menstrual onset, increases in the days before ovulation, and remains high through the luteal phase. However, we also show that this variation is unlikely to be detectable by the human visual system. We conclude that changes in skin color are not responsible for the effects of the ovulatory cycle on women’s attractiveness

Goodridge appeal - legal principles governing assignment and novation of contracts

Copyright © 2011 LexisNexis. This article is made available per the publisher's Content Sharing policy.The recent decision of the full bench of the Federal Court in Leveraged Equities Ltd v Goodridge1 has unanimously overturned the contentious first instance decision of Rares J2 and, in doing so, has restored clarity to the legal principles governing assignment and novation of contracts. Although the decision centred on the enforcement of margin lending arrangements and the proper construction of an ambiguously drafted contract, the case has wider implications for syndicated loans, securitisations and commercial transactions generally. The first instance decision caused much consternation in financial and legal circles, as it appeared to challenge existing legal principles and practice regarding the novation and assignment of contracts. Although several commentators suggested that the statements from the Goodridge decision should be confined to the specific facts, there was concern that if applied more broadly, the Goodridge decision undermined the validity of existing loan transfers, securitisations and other commercial transactions. The appeal decision has put such fears to rest, while providing a cogent and authoritative summation of the Australian law on novation and assignments, in line with both English and US authorities. Nevertheless, there are some aspects of the decision which may require further clarification

Adaptation of Connecting People to address loneliness and social isolation in university students: a feasibility study

University student mental health and wellbeing is a concern, exacerbated by the COVID-19 pandemic. Loneliness and social isolation are drivers of student mental health problems, amenable to intervention. Connecting People was developed and piloted in health and social care services to support people to enhance their social connections. This paper reports results of a pre-post, single-group evaluation of training provided to 105 people supporting students in a UK university, and the feasibility of using a Connecting People adaptation to reduce student social isolation. Trainee confidence in supporting socially isolated students increased after training and remained high six months post-training. Positive feedback included students making new friends, and helping trainees to break down tackling loneliness and social isolation into manageable steps. Further evaluation is required to test effectiveness, but the model appears feasible to use at minimal cost, and may offer a suitable model to alleviate student social isolation

The perils of tardy PPSR registration: Pozzebon (Trustee) v Australian Gaming and Entertainment Ltd

Copyright © 2014 LexisNexis. This article is made available per the publisher's Content Sharing policy.The recent decision of Pozzebon (Trustee) v Australian Gaming and Entertainment Ltd1 serves as a cautionary tale to secured lenders. It illustrates how a failure to register a security interest on the Personal Property Securities Register (PPSR) within 20 business days of execution may have dire consequences, rendering the security worthless if the corporate security provider enters external administration