2,696 research outputs found
Die Graeber der Koenige bey Jerusalem
No full text[drawn by J. D. Harding, after a sketch by Las Casas]Ansicht der sog. Loggia der "Königsgräber", eine in den Felsen gehauene Grabanlage aus dem 1. Jh. n.Chr. in Jerusalem - rechts oben Plattennr. CXX
Chateau Chillon am Genfer See
No full text[drawn by J. D. Harding], Ch. Daumerlang sc.Ansicht der seit dem 12. Jh. errichteten Wasserburg Schloss Chillon am Genfer See - rechts oben Plattennr. CLXX - nach: Finden's illustrations of the life & works of Byron, 183
Thermodynamic properties of uranium dioxide: Electronic contributions to the specific heat
No full textIt has recently been proposed that the anomalous specific heat of uranium dioxide be ascribed to the effect of electronic defects rather than Frenkel disorder on the union sub-lattice. We here present calculations showing that the entropy contribution from electronic defects is large enough to make a major contribution to the specific heat whereas the contribution from Frenkel defects is much smaller
On co-authorship for author disambiguation
No full textAuthor name disambiguation deals with clustering the same-name authors into different individuals. To attack the problem, many studies have employed a variety of disambiguation features such as coauthors, titles of papers/publications, topics of articles, emails/affiliations, etc. Among these, co-authorship is the most easily accessible and influential, since inter-person acquaintances represented by co-authorship could discriminate the identities of authors more clearly than other features. This study attempts to explore the net effects of co-authorship on author clustering in bibliographic data. First, to handle the shortage of explicit coauthors listed in known citations, a web-assisted technique of acquiring implicit coauthors of the target author to be disambiguated is proposed. Then, a coauthor disambiguation hypothesis that the identity of an author can be determined by his/her coauthors is examined and confirmed through a variety of author disambiguation experiments. (C) 2008 Elsevier Ltd. All rights reserved.X1174sciescopu
An evaluation of the palliative care-related outcomes of a cohort of TB patients in a district hospital setting: a multiple methods quality improvement study
No full textIncludes bibliographical references.Although curable, tuberculosis (TB) remains a serious health care problem. During 2011 there were almost 9 million new cases and 1.4 million TB deaths worldwide. The World Health Organisation (WHO) lists South Africa as a country with a high TB, HIV and MDR-TB burden. In this country the dual TB/HIV epidemic which has reached critical proportions is fuelled by the high TB/HIV co-infection rate. By definition the focus of palliative care is on the alleviation of suffering associated with lifelimiting illnesses. TB clearly falls into this category. The palliative care-related outcomes of a cohort of hospitalized TB patients were determined during this prospective longitudinal study and a quality improvement strategy was then generated from the audit data. The APCA POS, a validated outcome measurement tool was used to conduct weekly interviews. The audit sample comprised 57 patients with MDR-TB and 57 with drug responsive TB (n=114). The intensity of the multi-dimensional palliative care-related problems experienced by TB and MDR-TB patients on admission as well as the differences that occurred over time were measured over four consecutive weeks. In order to get staff perspectives on using the audit data to develop a quality improvement strategy, a report on the analyzed audit data formed the basis of a focus group discussion (FGD). The purposive sample of FGD participants included key members of staff from the TB and MDR TB wards. Audit findings indicated that on admission to hospital the predominant problems were pain, symptoms and worry. On a Lickert scale of 0-5 with 0 indicating best and 5 worst, the median score for both pain and other symptoms was 3.0, with an inter-quartile range of 2.00-4.25. Participants' worry about their illness attained the worst median baseline score of 4.0. Neither pain nor symptoms showed any sustained improvement over the four weeks of data collection. A statistically significant improvement in worry which moved from 4.0 to 2.0 occurred after week 1 but then remained static. An unexpected crucial finding was that the collective score for participants with drug responsive TB was worse than for those with MDR-TB for both the physical and psycho-social components, and at each time point. Using the APCA POS audit data as the basis of a FGD with key staff members resulted in the development of an appropriate palliative care-focused quality improvement strategy which they considered to be realistic and achievable within their busy hospital setting. Findings from this study support the recent WHO Declaration on the provision of palliative care for people with drug-resistant TB. Furthermore they clearly show that patients with drug responsive TB should not be excluded from a comprehensive palliative care person-centred approach. Palliative care within the context of TB is still an emerging concept. This study makes a meaningful contribution to the scarce information currently available. The topic is important in that the suffering experienced by vast numbers of TB patients and their families could and should be substantially relieved. It is suggested that it would be valuable to explore the impact of a palliative care approach on TB treatment outcomes
The distance-regular graphs such that all of its second largest local eigenvalues are at most one
No full textIn this paper, we classify distance-regular graphs such that all of its second largest local eigenvalues are at most one. Also we discuss the consequences for the smallest eigenvalue of a distance-regular graph. These extend a result by the first author, who classified the distance-regular graphs with smallest eigenvalue -1 - b(1)/2. (C) 2011 Elsevier Inc. All rights reserved.X1154sciescopu
Structure and heterogeneity of gliadin: A hydrodynamic evaluation
No full textA study of the heterogeneity and conformation in solution [in 70% (v/v) aq. ethanol] of gliadin proteins from wheat was undertaken based upon sedimentation velocity in the analytical ultracentrifuge, analysis of the distribution coefficients and ellipsoidal axial ratios assuming quasi-rigid particles, allowing for a range of plausible time-averaged hydration values. All classical fractions (α, γ, ωslow, ωfast) show three clearly resolved components. Based on the weight-average sedimentation coefficient for each fraction and a weight-average molecular weight from sedimentation equilibrium and/or cDNA sequence analysis, all the proteins are extended molecules with axial ratios ranging from ~10 to 30 with α appearing the most extended and γ the least. © 2009 European Biophysical Societies' Association
On geometric distance-regular graphs with diameter three
No full textIn this paper we study distance-regular graphs with intersection array {(t + 1)s. ts. (t - 1)(s + 1 - psi); 1, 2, (t + 1)psi} (1) where s. t. psi are integers satisfying t >= 2 and 1 = 2, there are only finitely many distance-regular graphs of order (s, t) with mallest eigenvalue -t -1, diameter D = 3 and intersection number c(2) = 2 except for Hamming graphs with diameter three. Moreover, we will show that if a distance-regular graph with intersection array (1) for t = 2 exists then (s, psi) = (15, 9). As Gavrilyuk and Makhnev (2013)[9] proved that the case (s, psi) = (15, 9) does not exist, this enables us to finish the classification of geometric distance-regular graphs with smallest eigenvalue -3, diameter D >= 3 and c(2) >= 2 which was started by the first author (Bang, 2013)[1]. (C) 2013 Elsevier Ltd. All rights reserved.X1121Ysciescopu
THE CALCULATION OF HUGONIOTS IN IONIC SOLIDS
No full textThe authors demonstrate the quantitative prediction of Hugoniots for an ionic crystal (NaCl) using the shell model with the best available potentials. The calculations show that these shock wave data can be predicted quite accurately by relatively simple use of established computer codes. The Hugoniot results, together with static phase-change data, also provide a very severe test of interatomic potentials. The two sets of empirical potentials ((i) Catlow, Diller and Norgett (1977), (ii) Sangster and Atwood (1978)) both perform much better than electron gas potentials. The same approach can be used to test potentials and to make predictions for the behaviour of solids for extreme conditions of temperature and pressure
Capsule-like voids in SiC single crystal: Phase contrast imaging and computer simulations
No full textThe results of observation of capsule-like voids in silicon carbide (6H-SiC) single crystal by means of a phase contrast imaging technique with synchrotron radiation at the Pohang Light Source as well as computer simulations of such images are presented. A pink beam and a monochromated beam were used. The latter gives more pronounced images but they still are smoothed due to a finite detector resolution and the spatial coherence of the beam. Sizes and a structure of far field images are different from these of the objects. The computer simulations allow us to reproduce a shape and a size of the capsule-like void. (C) 2014 Author(s).open1111sciescopu
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