PURPOSE: To derive Regional Diagnostic Reference Levels (RDRL) for paediatric conventional and CT examinations using weight-based DRL curves and compare the outcome with DRL derived using the weight groups.METHODS: Data from 1722 examinations performed at 29 hospitals in four countries were included. DRL was derived for four conventional x-ray (chest, abdomen, pelvis, hips/joints) and two types of

Double-chain amphiphilic compounds, including surfactants and lipids, have broad significance in applications like personal care and biology. A study on the phase structures and their transitions focusing on dioctadecyldimethylammonium chloride (DODAC), used inter alia in hair conditioners, is presented. The phase behaviour is dominated by two bilayer lamellar phases, Lβ and Lα, with “solid” and “

The Pleistocene-Holocene transition brought turbulent times to human societies confronted by rapid climatic fluctuations, shifts inbiogeographic zones and the flooding of continental shelves. While the disappearance of Doggerland’s inhabited landscapes underthe grey waters of the North Sea marks the culmination of these changes for European Archaeologists, our aim is this paper is todraw parallels

Despite the long tradition of fieldwork and qualitative research practice in tourism studies, the reporting of methodological notes and reflections is limited in the literature. Many excellent methodological remarks in research reports and graduate theses find few outlets in academic journals and those few contributions that are eventually published often emphasize the novelty of the method rather

Abstract in Chinese本文通过分析 2016年在香港大学举办的“情欲中国：性与女性主体”展映纪录片，以及受邀但因伦理问题未参展的影片，探讨中国独立纪录片电影在处理隐私、性别、暴力、创伤等议题时的女权主义立场性：1）电影人的关怀伦理立场，以及与影片主人公形成（亲密）团结立场；2）影片主人公从坦白和渴求的立场出发，从基于性别的暴力和歧视中重宣自主；3）电影人与影片主人公从不同的立场出发，通过发行控制来降低纪录片对主人公个人生活可能造成的负面影响；4）片中人物与电影人自我转变的演进，因此恢复一度禁止的放映；5）从活跃分子立场出发的政治代言，以及从电影人立场出发的艺术意义上的再现；6）理论与实践之间的紧张关系要求学者、电影人和活跃分子反思性别与知识生产的传统关系，置身于具体处境中进行讨论和落实纪录片伦理。本文认为在制作、展映、评论中国关于女性的纪录片时，有必要采取女权主义的关怀伦理This article analyses a series of ‘Desiring China: Sexuality and Female Subjectivity’ screening and discussion of Chinese independent documentary films at the University of Hong Kong in 2016. It explores a feminist positionality in Chinese independent documentary film to deal with privacy, gender, violence, and trauma: 1) filmmaker’s position on the ethics of care and (intimate) solidarity with pr

Little is known about provision of medical services to adolescents prior to participating in international top-level sports. This study aimed to investigate experiences of medical service provision among high-level adolescent athletics (track and field) athletes from three continents. A thematic narrative analysis was applied to data collected from 14 athletes by semi-structured interviews. Althou

In this work, we analyse the all-orders resummation structure of the momentum sharing fraction, zg, opening angle, θg, and relative transverse momentum, kt,g, of the splitting tagged by the Dynamical Grooming procedure in hadronic collisions. We demonstrate that their resummation does non-exponentiate and it is free of clustering logarithms. Then, we analytically compute the probability distributi

Latin America is often considered the world’s most unequal region. This inequality is not limited to socioeconomic differences; it is also seen through discrepancies in access to nature, land, and natural resources. The Covid-19 pandemic has intensified existing vulnerabilities felt by communities, especially susceptible to environmental degradation through furthering their socioeconomic disadvant

We extend the notion of quasibounded harmonic functions to the plurisubharmonic setting. As an application, using the theory of Jensen measures, we show that certain generalized Dirichlet problems with unbounded boundary data admit unique solutions, and that these solutions are continuous outside a pluripolar set.

A search for charged Higgs bosons decaying into a top quark and a bottom quark is presented. The data analysed correspond to 139 fb−1 of proton-proton collisions at s = 13 TeV, recorded with the ATLAS detector at the LHC. The production of a heavy charged Higgs boson in association with a top quark and a bottom quark, pp → tbH+ → tbtb, is explored in the H+ mass range from 200 to 2000 GeV using fi

Background: Studies investigating postural orientation in uninjured youth athletes are scarce. Understanding how postural orientation during functional performance tests change with age in uninjured athletes has the potential to enhance awareness of changes in performance after injury and to set realistic goals for injured athletes. Thus, the aim of this study was to explore postural orientation d

Mice (Mus musculus) have a high basal rate of metabolism which increases during pregnancy and lactation. During peak lactation, water intake amounts to up to 65 % of the bodyweight per day. Providing water in a bottle may pose a restriction of water intake and lead to dehydration during periods of high demand, such as peak lactation. To establish if female mice are able to sustain a physiological

The classical goals of haemophilia A treatment are to prevent bleeds, minimise the risk of long-term complications associated with joint damage, and improve quality of life by maintaining appropriate factor VIII [FVIII] levels. The dose and frequency of FVIII replacement therapies required to reduce bleeds is now known to vary amongst individuals, and may change for the same individual over time,

This study analyses the documentary filmmaking of Ai Xiaoming, filmmaker, literature professor, feminist and rights activist, on the issues of the Jiabiangou Rightist Labour Camp and the 2008 Sichuan earthquake. The analyses deploy Foucault’s framework of truth-telling in the three axes of subjectification, namely, knowledge, power and morality. Ai regards documentary filmmaking as a way to challe