The mothematics of female pheromone signaling: strategies for aging virgins

Although females rarely experience strong mate limitation, delays or lifelong problems of mate acquisition are detrimental to female fitness. In systems where males search for females via pheromone plumes, it is often difficult to assess whether female signaling is costly. Direct costs include the energetics of pheromone production and attention from unwanted eavesdroppers, such as parasites, parasitoids, and predators. Suboptimal outcomes are also possible from too many or too few mating events or near-simultaneous arrival of males who make unwanted mating attempts (even if successfully thwarted). We show that, in theory, even small costs can lead to a scenario where young females signal less intensely (lower pheromone concentration and/or shorter time spent signaling) and increase signaling effort only as they age and gather evidence (while still virgin) on whether sperm limitation threatens their reproductive success. Our synthesis of the empirical data available on Lepidoptera supports this prediction for one frequently reported component of signaling-time spent calling (often reported as the time of onset of calling at night)-but not for another, pheromone titer. This difference is explicable under the plausible but currently untested assumption that signaling earlier than other females each night is a more reliable way of increasing the probability of acquiring at least one mate than producing a more concentrated pheromone plume.

Some of these girls can be real drama queens : issues of gender, sexual harassment and schooling

Since the 1970s many feminists working for gender justice in education have highlighted the predominance and seriousness of sexual harassment in schools and condemned the enduring trivialization of such behaviours. This paper develops this body of work by focusing on how issues of sexual harassment are located within prevailing contemporary western educational contexts that position boys as 'victims' of feminism and 'girl-friendly' schooling. It is argued here that such contexts draw attention away from the powerful spaces that many boys continue to inhabit in schools. Counter to the popular notion that girls no longer face problems in relation to their schooling, the paper foregrounds the voices of four (14-year-old) Grade Eight girls from Tasmania, Australia who detail their disturbing experiences of sexual harassment. Pointing to the grave inadequacies of common remedies used to address these behaviours, such as prescriptive discipline systems that ignore issues of gender and power and boy-friendly remedies that collude in the perpetuation of inequitable gender relations, the paper highlights the imperative of disrupting the erasure of these issues from current dominant equity debates and the urgency of better addressing this problem in schools. Along these lines, the paper calls for teacher practice that acts against the grain of broader anti-feminist and performative school cultures to transform the masculinities of entitlement that contribute to these unacceptable behaviours.

‘Some of those girls can be real drama queens’: issues of gender, sexual harassment and schooling

Since the 1970s many feminists working for gender justice in education have highlighted the predominance and seriousness of sexual harassment in schools and condemned the enduring trivialization of such behaviours. This paper develops this body of work by focusing on how issues of sexual harassment are located within prevailing contemporary western educational contexts that position boys as ‘victims’ of feminism and ‘girl‐friendly’ schooling. It is argued here that such contexts draw attention away from the powerful spaces that many boys continue to inhabit in schools. Counter to the popular notion that girls no longer face problems in relation to their schooling, the paper foregrounds the voices of four (14‐year‐old) Grade Eight girls from Tasmania, Australia who detail their disturbing experiences of sexual harassment. Pointing to the grave inadequacies of common remedies used to address these behaviours, such as prescriptive discipline systems that ignore issues of gender and power and boy‐friendly remedies that collude in the perpetuation of inequitable gender relations, the paper highlights the imperative of disrupting the erasure of these issues from current dominant equity debates and the urgency of better addressing this problem in schools. Along these lines, the paper calls for teacher practice that acts against the grain of broader anti‐feminist and performative school cultures to transform the masculinities of entitlement that contribute to these unacceptable behaviours.

‘My history is a tile in a mosaic’ : an interview with Jim Cullen

JIM CULLEN was born in Queens, New York, and attended public schools on Long Island. He received his B.A. in English from Tufts University, and his A.M. and Ph.D. degrees in American Civilization from Brown University. He has taught at a number of colleges and universities, including Harvard and Brown. He is currently a teacher, and serves on the Board of the Trustees, at the Ethical Culture Fieldston School in New York City. Jim is married to historian Lyde Cullen Sizer and has four children.
CONTEXT: Dr Glenn Moore co-ordinates the subject 'Searching for the American Dream’ at The University of Melbourne. For the last nine years he has taken second and third year history students to Boston, New York and Washington, D.C to explore the philosophy of genius loci. Dr Moore gets students to work in food banks, visit homeless shelters, museums and organizes an array of guest speakers with experts such as Boston public defender, Denise Regan, Neera Tanden, Hillary Clinton’s campaign manager and Alec Ross, vice president of One Economy. As the leading expert on the American Dream, with the publication of so many books in American history such as: The American Dream: A Short History of an Idea that Shaped a Nation, Born in the U.S.A.: Bruce Springsteen and the American Tradition and Restless in the Promised Land: Catholics and the American Dream, Jim Cullen has spoken to the students for the last five years. I interviewed him prior to his recent discussion with the students in New York on 5 July 2006 at the Fashion Institute of Technology.

Do male guppies distinguish virgin females from recently mated ones?

In some mating systems males should benefit from mating with virgin females because of their higher reproductive value. We determined experimentally whether and how males distinguish between virgin and recently mated females in the guppy, Poecilia reticulata, a promiscuous livebearer. In a free-swimming experiment, males showed flexible mating behaviour by adjusting their tactics according to the mating status of the female they encountered, virgin or mated. Males followed, nipped and copulated with virgins more than with mated females, but they performed more sneaky copulations with mated females, possibly because the latter were more reluctant to mate than virgin females. When, in another set of experiments, males received only the visual cues of both virgins and mated females they showed no preference for either, but when they were exposed only to the female olfactory cues, they associated considerably more with the smell of virgin females. These results suggest that male guppies assess female behavioural and olfactory cues to determine female virginity and then use different mating tactics depending on the female's status. It is possible that the changes in male mating behaviour increase male reproductive success.

ID scanning, the media and the politics of urban surveillance in an Australian regional city

Computerised ID scanning technologies have permeated many urban night-time economies in Australia, the United States, Canada and the United Kingdom. This paper documents how one media organisation’s overt and tacit approval of ID scanners helped to normalise this form of surveillance as a precondition of entry into most licensed venues in the Australian city of Geelong. After outlining how processes of governance “from above” and “from below” interweave to generate distinct political and media demands for strategies to prevent localised crime problems, a chronological reconstruction of media reports over a three-and-a half year period demonstrates how ID scanning became the centrepiece of a holistic reform strategy to combat alcohol-related violence in this nightclub precinct. Several discursive techniques helped to normalise this “technological fix”, while suppressing critical discussion of viable concerns over information privacy, data security and system networking. These
included pairing reports of an initial “signal crime” with examples of “virtual victimhood” to stress the urgency of a radical surveillance-based response, which was supported by anecdotal statements from key “primary definers” highlighting the success of this initiative in targeting a wider population of antisocial “others”. The implications of these reporting practices are discussed in light of the media’s central role in reforming the Geelong night-time economy and broader trends in using novel surveillance technologies to combat urban crime problems at the expense of alternative measures that protect individual liberty.

Effect of pregnancy for females born small on later life metabolic disease risk

There is a strong inverse relationship between a females own birth weight and her subsequent risk for gestational diabetes with increased risk of developing diabetes later in life. We have shown that growth restricted females develop loss of glucose tolerance during late pregnancy with normal pancreatic function. 

Editorial : Surveillance and sport

Sports represent an ideal field to explore the importance of everyday surveillance practices. The routines of preparation associated with conducting or participating in a sports mega event at international level highlight unique facets of surveillance as everyday and normalised elements of elite international or professional sports performance. While these routines do have potential individual or social costs, or are open to various forms of subversion by athletes willing to challenge the broader objectives of fair play, other forces, such as the media or formal governance reactions to a detected rule violation, provide fuel for more rigorous forms of surveillance. This spiral of surveillance permeates downwards to impact on prospective elite athletes, and outwards to impact on other forms of behaviour considered to compromise integrity or fair play. How these values mirror and intersect with norms of surveillance in everyday life is a fruitful site for on-going research and theorisation.

Surveillance, Governance and Professional Sport

The surveillance capacities of professional sports clubs and Leagues are directly related to their modes of governance. This paper identifies how private sports clubs enact surveillance through processes of inclusion and exclusion. Using three examples to demonstrate these processes, we argue that the surveillance mechanisms associated with sports governance at times replicate, at other times contradict, and at other times influence those associated with broader law enforcement and security developments. These examples also suggest potential increases in surveillance activities that emerge in club governance often flow from external concerns regarding allegations of crime, national security breaches and corruption. These context-specific case studies (Flyvbjerg 2001) demonstrate how surveillance and identity authentication are closely tied to the complex, multi-tiered governance structures and practices in three distinct sports. We then explore how these patterns can be interpreted as either connected to or distinct from equivalent developments involving the surveillance surge (Murakami Wood 2009) and concepts of inclusion and exclusion under the criminal law. We conclude by discussing how both internal and external regulatory forces can shape interrelated facets of surveillance, governance and exclusion in elite sports.

Researching women in silent cinema: new findings and perspectives

This anthology exposes the richness and variety of interests that motivate feminist film research today. Exploring women’s contribution to silent cinema, scholars from across the globe address questions of performance, nationality, industry, technology, labor, and theory of feminist historiography. The volume builds on the thematic, methodological, and material diversity that characterized earlier efforts in women’s film history, and the originating context of the sixth Women and the Silent Screen conference (Bologna, 2010). Much emphasis is given to the transitional period of silent cinema (1910s to the early 1920s), which emerges as the field where feminist film scholars are beginning to claim their own theoretical and historical ‘place’. While giving a new impetus to the idea of transitional cinema, the collected essays also illuminate the importance of film’s transnational circulation. Questions of nation and nationhood, and women’s inclusion or exclusion within these terms, are examined in connection to issues of cultural globalization. How did American serial queens impact early Chinese film? How did the variety stage accommodate American films in Rio de Janeiro? Along what lines might we discuss women filmmakers who literally toured the world? These are just some of the issues that are discussed in the volume. Each investigation prompts us into distinct acts of cultural contextualization. A particular focus on acting and the agency of the actress is shared across the volume. The fundamental figure of the actress links multiple threads of scholarship, traversing different films and national cinemas. Alice Guy, Asta Nielsen, Florence Turner, Lois Weber, Mary Pickford, Esfir’ Shub, Pearl White, Vera Karalli, Aleksandra Khokhlova, Elsa Lanchester, Louise Fazenda, Sarah Bernhardt, Gemma Bellincioni, Angelina Buracci, Yin Mingzhu, Leni Riefensthal: these are but some of the names that are encountered across the essays in the collection. New findings are exposed and new research perspectives are opened through these and other figures, allowing us to uncover original ways of thinking about women’s visibility and agency on film.

Recombinant human growth hormone for the treatment of growth disorders in children: a systematic review and economic evaluation

Recombinant human growth hormone (rhGH) is licensed for short stature associated with growth hormone deficiency (GHD), Turner syndrome (TS), Prader-Willi syndrome (PWS), chronic renal insufficiency (CRI), short stature homeobox-containing gene deficiency (SHOX-D) and being born small for gestational age (SGA). To assess the clinical effectiveness and cost-effectiveness of rhGH compared with treatment strategies without rhGH for children with GHD, TS, PWS, CRI, SHOX-D and those born SGA. The systematic review used a priori methods. Key databases were searched (e.g. MEDLINE, EMBASE, NHS Economic Evaluation Database and eight others) for relevant studies from their inception to June 2009. A decision-analytical model was developed to determine cost-effectiveness in the UK. Two reviewers assessed titles and abstracts of studies identified by the search strategy, obtained the full text of relevant papers, and screened them against inclusion criteria. Data from included studies were extracted by one reviewer and checked by a second. Quality of included studies was assessed using standard criteria, applied by one reviewer and checked by a second. Clinical effectiveness studies were synthesised through a narrative review. Twenty-eight randomised controlled trials (RCTs) in 34 publications were included in the systematic review. GHD: Children in the rhGH group grew 2.7 cm/year faster than untreated children and had a statistically significantly higher height standard deviation score (HtSDS) after 1 year: -2.3 ± 0.45 versus -2.8 ± 0.45. TS: In one study, treated girls grew 9.3 cm more than untreated girls. In a study of younger children, the difference was 7.6 cm after 2 years. HtSDS values were statistically significantly higher in treated girls. PWS: Infants receiving rhGH for 1 year grew significantly taller (6.2 cm more) than those untreated. Two studies reported a statistically significant difference in HtSDS in favour of rhGH. CRI: rhGH-treated children in a 1-year study grew an average of 3.6 cm more than untreated children. HtSDS was statistically significantly higher in treated children in two studies. SGA: Criteria were amended to include children of 3+ years with no catch-up growth, with no reference to mid-parental height. Only one of the RCTs used the licensed dose; the others used higher doses. Adult height (AH) was approximately 4 cm higher in rhGH-treated patients in the one study to report this outcome, and AH-gain SDS was also statistically significantly higher in this group. Mean HtSDS was higher in treated than untreated patients in four other studies (significant in two). SHOX-D: After 2 years' treatment, children were approximately 6 cm taller than the control group and HtSDS was statistically significantly higher in treated children. The incremental cost per quality adjusted life-year (QALY) estimates of rhGH compared with no treatment were: 23,196 pounds for GHD, 39,460 pounds for TS, 135,311 pounds for PWS, 39,273 pounds for CRI, 33,079 pounds for SGA and 40,531 pounds for SHOX-D. The probability of treatment of each of the conditions being cost-effective at 30,000 pounds was: 95% for GHD, 19% for TS, 1% for PWS, 16% for CRI, 38% for SGA and 15% for SHOX-D.

The safety and effectiveness of different methods of ear wax removal: a systematic review and economic evaluation

Build-up of earwax is a common reason for attendance in primary care. Current practice for earwax removal generally involves the use of a softening agent, followed by irrigation of the ear if required. However, the safety and benefits of the different methods of removal are not known for certain.

The clinical effectiveness and cost-effectiveness of bariatric (weight loss) surgery for obesity: a systematic review and economic evaluation

To assess the clinical effectiveness and cost-effectiveness of bariatric surgery for obesity. Seventeen electronic databases were searched [MEDLINE; EMBASE; PreMedline In-Process & Other Non-Indexed Citations; The Cochrane Library including the Cochrane Systematic Reviews Database, Cochrane Controlled Trials Register, DARE, NHS EED and HTA databases; Web of Knowledge Science Citation Index (SCI); Web of Knowledge ISI Proceedings; PsycInfo; CRD databases; BIOSIS; and databases listing ongoing clinical trials] from inception to August 2008. Bibliographies of related papers were assessed and experts were contacted to identify additional published and unpublished references. Two reviewers independently screened titles and abstracts for eligibility. Inclusion criteria were applied to the full text using a standard form. Interventions investigated were open and laparoscopic bariatric surgical procedures in widespread current use compared with one another and with non-surgical interventions. Population comprised adult patients with body mass index (BMI) > or = 30 and young obese people. Main outcomes were at least one of the following after at least 12 months follow-up: measures of weight change; quality of life (QoL); perioperative and postoperative mortality and morbidity; change in obesity-related comorbidities; cost-effectiveness. Studies eligible for inclusion in the systematic review for comparisons of Surgery versus Surgery were RCTs. For comparisons of Surgery versus Non-surgical procedures eligible studies were RCTs, controlled clinical trials and prospective cohort studies (with a control cohort). Studies eligible for inclusion in the systematic review of cost-effectiveness were full cost-effectiveness analyses, cost-utility analyses, cost-benefit analyses and cost-consequence analyses. One reviewer performed data extraction, which was checked by two reviewers independently. Two reviewers independently applied quality assessment criteria and differences in opinion were resolved at each stage. Studies were synthesised through a narrative review with full tabulation of the results of all included studies. In the economic model the analysis was developed for three patient populations, those with BMI > or = 40; BMI > or = 30 and < 40 with Type 2 diabetes at baseline; and BMI > or = 30 and < 35. Models were applied with assumptions on costs and comorbidity.

Adefovir dipivoxil and pegylated interferon alpha for the treatment of chronic hepatitis B: an updated systematic review and economic evaluation

To update and extend a 2006 report on the clinical effectiveness and cost-effectiveness of adefovir dipivoxil (ADV) and pegylated interferon alpha (PEG-alpha) for the treatment of chronic hepatitis B (CHB). Thirteen bibliographic databases were searched including MEDLINE, EMBASE and the Cochrane Library. Searches were run from the beginning of 2005 to September 2007. For the clinical effectiveness review, randomised controlled trials (RCTs) comparing ADV, PEG-alpha-2a and PEG-alpha-2b with currently licensed treatments for CHB, including non-pegylated interferon alpha (IFN-alpha) and lamivudine (LAM), were included. Outcomes included biochemical, histological and virological response to treatment, drug resistance and adverse effects. A systematic review of economic evaluations of antiviral treatments for CHB was conducted. The economic Markov model used in the 2006 report was updated in terms of utility values, discount rates and costs. `