Leadership and the media: Gendered framings of Julia Gillard's ‘sexism and misogyny’ speech

This article analyses Australian media portrayals of former Australian Prime Minister Julia Gillard's ‘sexism and misogyny’ speech to parliament in October 2012. Our analysis reveals that coverage of the speech comprised three principal gendered framings: strategic attack, uncontrolled emotional outpouring and hypocrisy. We argue that these framings demonstrate the role the media plays as a gendered mediator, perpetuating the gender double bind that constrains female political leaders, as they negotiate the demand to demonstrate masculine leadership attributes without tarnishing the feminine qualities expected of them. In this instance, gendered media framings limited the saliency of Gillard's speech, curtailed calls for wider introspection on Australian political culture and further disassociated women from political leadership.

本文分析了澳大利亚媒体围绕前总理朱丽娅吉拉德2012年在国会的所做“歧视、憎恶女性”的发言对她所做的描画。对那次讲话的报道主要由三个性别镜框构成。一是战略进攻,二是情绪宣泄,三是伪善。我们认为,这些镜框显示了媒体作为性别化的中介,加固了对女性政治领袖性别上的双重束缚：这些领袖既要展示阳刚的领导作风又要不失社会所期待的一些女性气质。在这个案例中,性别化的媒体报道,将吉拉德讲话狭隘化,妨碍了对澳大利亚政治文化的反思,割裂了女性与政治领导的关系。     

Accurate Measurements of Low Z Elements in Sediments and Archaeological Ceramics Using Portable X-ray Fluorescence (PXRF)

This study seeks to demonstrate the ability of portable X-ray fluorescence (PXRF) to estimate concentrations of K, Ca, and Fe in sediments and archaeological ceramics under controlled conditions. After a discussion of the potential confounding factors in PXRF use, a protocol which attempts to address these issues through repeated measurement, calibration, and re-sampling is detailed. Data generated using this protocol are then tested for accuracy and repeatability. PXRF is argued to be able to produce accurate estimates of K provided the suggested protocol is used, and able to produce repeatable estimates of K and Ca under these same conditions. Other experimental conditions tested failed to produce accurate and repeatable results. Fe results are found to be problematic given the calibration standards used here.     

10,000 years of human predation and size changes in the owl limpet (Lottia gigantea) on San Miguel Island,California

To investigate potential human impacts on California Channel Island shellfish stocks over the past 10,000 years, we measured 1718 owl limpet shells from 19 archaeological components on San Miguel Island. Inhabiting the middle intertidal zone of Pacific Coast rocky shores, owl limpets are slow-growing mollusks that can live for 30 years and reach lengths of over 100 mm. Recent ecological studies indicate that owl limpets are highly susceptible to heavy human predation, which results in reduced mean shell sizes among Lottia populations along the coasts of Alta and Baja California. On San Miguel Island, we identified a significant trans-Holocene reduction in mean owl limpet size, beginning more than 6500 years ago and accelerating at least 4400 years ago. Fluctuations in limpet size show no clear correlation with changes in sea surface temperature and marine productivity, suggesting that increased predation by growing human populations was primarily responsible for the reduction in Lottia size over time. Our results provide further evidence that prehistoric peoples significantly influenced nearshore fisheries long before the development of the commercial and industrialized fisheries of historic times.     

Can salmonids (Oncorhynchus spp.) be identified to species using vertebral morphometrics?

Remains of anadromous Pacific salmon and trout (genus Oncorhynchus) are common in archaeological sites from California to Alaska; however, morphological similarity generally precludes species identification, limiting the range of questions that salmonid remains can address in relation to past human use and ongoing efforts in conservation biology. We developed a relatively simple, rapid, and non-destructive way to classify salmon and trout vertebrae from archaeological contexts to species using length, height and the ratio of length to height. Modern reference material was obtained from all seven anadromous Oncorhynchus species native to the west coast of North America. A minimum of ten adult Chinook (Oncorhynchus tshawytscha), chum (Oncorhynchus keta), coho (Oncorhynchus kisutch), pink (Oncorhynchus gorbuscha), and sockeye salmon (Oncorhynchus nerka) and cutthroat (Oncorhynchus clarki clarki) and steelhead trout (Oncorhynchus mykiss) were skeletonized and vertebra length and height were measured. Morphometric analyses compared species classification success based on Linear Discriminant Analysis (LDA), Classification and Regression Trees (CART), and randomForest, with CART performing the best. Classification analyses used all seven species individually, but because of considerable overlap among several species we also conducted analyses on four species groupings. We assigned Chinook salmon and cutthroat to their own groups based on their dissimilarities from each other and the other species. The remaining species were divided into two group complexes (a) chum, coho, and steelhead; and (b) pink and sockeye. When we grouped species according to similar morphology, CART overall success rates increased, ranging from 92 to 100%. Individual species with the highest successful classification rates using CART were Chinook salmon and cutthroat, from 92 to 100%, respectively. We applied our classification to an assemblage of ancient (1000–3000 year old) salmonid vertebrae from the Swiftwater Rockshelters excavations on the upper Wenatchee River in Washington State, U.S.A.