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On sum rules for scattering in circular polarization

Classical sum rules, that connect the dynamic scattering properties at all frequencies to the static polarizability, can be shown to break down when applied to circular polarization. This has previously been explained in terms of a breach of symmetry with respect to positive and negative frequencies. In this paper, we show an alternative explanation where circular polarization is introduced by usi

The Politics of Picturing: Representational Restraint and Renewal in English-Islamic Picturebooks : Paper presented at the Visual/Verbal Texts Symposium, Winnipeg, Canada

The proposed paper aims at discussing transforming representational programs in recent English-Islamic picture books. As a background, it draws attention to the identity political processes underlying the emerging literature, as stimulated by minority/marginality experiences. In its main section, the paper focuses how the picture books both reproduce and renegotiate Islamic traditional representat

Lipid Spontaneous Curvatures Estimated from Temperature-Dependent Changes in Inverse Hexagonal Phase Lattice Parameters : Effects of Metal Cations

Recently we reported a method for estimating the spontaneous curvatures of lipids from temperature-dependent changes in the lattice parameter of inverse hexagonal liquid crystal phases of binary lipid mixtures. This method makes use of 1,2-dioleoyl-sn-glycerol-3-phosphoethanolamine (DOPE) as a host lipid, which preferentially forms an inverse hexagonal phase to which a guest lipid of unknown spont

Scatterer size estimation using the center frequency assessed from ultrasound time domain data

Scatterer size estimation is useful when characterizing tissue using ultrasound. In all previous studies on scatterer size, the estimations are performed in the frequency domain and are thus subjected to a trade off in time-frequency resolution. This study focused on the feasibility of estimating scatterer size in the time domain using only the ultrasound center frequency, assuming a Gaussian-shap

Introduction: The Materiality of the Immaterial : ICTs and the Digital Commons

Today, two great signs of change are occurring. On the one hand, the capitalist world economy is putting tremendous pressure on the earth’s biosphere and bringing an onslaught of destruction to immediate environments and vulnerable people worldwide. On the other hand, the rise of new and progressive social-economic foundations is the result of an unprecedented increase of information and communica

Molecular Subtypes of Melanoma. Biological and Clinical Significance.

Cutaneous malignant melanoma (CMM) is the most lethal form of skin cancer and its incidence has increased faster than that of any other cancer, rendering it a major public health problem worldwide. High-throughput screenings have opened the door to a new scientific world, which enables molecular-based characterization of large cancer cohort collections. The aim of the research presented in this th

Warfarin treatment quality and prognosis in patients with mechanical heart valve prosthesis

Objectives To study the impact of time in therapeutic range (TTR) and international normalised ratio (INR) variability on the risk of thromboembolic events, major bleeding complications and death after mechanical heart valve (MHV) implantation. Additionally, the importance of different target INR levels was elucidated. Methods A retrospective, non-randomised multicentre cohort study including all

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OBJECTIVE: Adenocarcinoma of the appendix is less than 0.5% of all gastrointestinal cancers. The aim of this study was to analyse the incidence, symptoms, pathology and treatment of appendiceal adenocarcinoma in a well defined cohort as well as the prognosis of the patients.MATERIALS AND METHODS: This is a retrospective study on all patients diagnosed with adenocarcinoma of the appendix in Iceland

Den haltande kontinenten? : Autenticitet och ekonomisk frihet hos José Martí

This thesis examines the strategies developed by José Martí for a prosperous Spanish American future in the end of the 19th century. In 1875, which is the starting point of the thesis, most nations in Spanish America had freed themselves from colonial rule and now stood before the challenge of finding a beneficial place within the international division of labour. Martí observed that centuries of

Navigating Identity, Ethnicity, and Politics: A Case Study of Gender Variance in the Central Highlands of Vietnam

Based on ethnographic data collected among the Bahnar ethnicgroup in the Central Highlands of Vietnam, I discuss the livedexperiences of masculine performing people (assigned female atbirth) whose gender characteristics blur the boundaries betweenlesbian and transgender. In reviewing non-normative genderpractices in supernatural rituals in Southeast Asia and in Vietnam Iexplore the links between t

The relationship between the metabolic syndrome and arterial wall thickness : A mosaic still to be interpreted

Background and aims We aimed to identify clusters of metabolic syndrome (MetS) components, risky for extremely high intima-media thickness. Methods We studied 41,513 volunteers (men and women) from eleven cohorts worldwide, participating in the MARE (Metabolic syndrome and Artery REsearch) Consortium. Results Specific clusters of MetS components - high triglycerides-high blood pressure-abdominal o

Immunoheterogeneity of parathyroid hormone after surgery for primary hyperparathyroidism

Circulating parathyroid hormone (PTH) immunoheterogeneity is altered in primary hyperparathyroidism (pHPT). It is not known, however, whether the relative secretion of various PTH fragments differs between the adenomatous and the non-adenomatous glands in pHPT. We therefore examined the immunoheterogeneity of PTH in patients operated upon because of parathyroid adenoma pre- and 4 days postoperativ

Large vein sampling for intact parathyroid hormone in preoperative localization of enlarged parathyroid glands

Unilateral neck exploration for primary hyperparathyroidism (pHPT) of old and high risk patients can be safely performed under local anesthesia, provided there is a correct preoperative side localization of the enlarged parathyroid gland. We performed large vein sampling and measured intact parathyroid hormones (PTH) with a new, highly sensitive immunoradiometric assay. The method was used before

Seasonal variability in Northern Hemisphere atmospheric circulation during the Medieval Climate Anomaly and the Little Ice Age

Here we report new reconstructions of winter temperature and summer moisture during the past millennium in southeastern Sweden, based on stable-isotope data from a composite tree-ring sequence, that further enhances our knowledge and understanding of seasonal climate variability in the Northern Hemisphere over the past millennium. Key features of these new climate proxy records include evidence fo