The cranking formula and the spurious behaviour of the mass parameters

We discuss some aspects of the approach of the mass parameters by means of the simple cranking model. In particular, it is well known that the numerical application of this formula is often subject to ambiguities or contradictions. It is found that these problems are induced by the presence of two derivatives in the formula. To overcome these problems, we state a useful ansatz and we develop a number of simple arguments which tend to justify the removal of these terms. As soon as this is done, the formula becomes simpler and easier to interpret. In this respect, it is shown how the shell effects affect the mass parameters. A number of numerical tests help us in our conclusions.Comment: version 3 corrigendum of the ansatz of section V, corrigendum of the legend of Fig3. Submission = text file + 5 figure

Quantum Hall Effect on the Flag Manifold F_2

The Landau problem on the flag manifold ${\bf F}_2 = SU(3)/U(1)\times U(1)$ is analyzed from an algebraic point of view. The involved magnetic background is induced by two U(1) abelian connections. In quantizing the theory, we show that the wavefunctions, of a non-relativistic particle living on ${\bf F}_2$, are the SU(3) Wigner ${\cal D}$-functions satisfying two constraints. Using the ${\bf F}_2$ algebraic and geometrical structures, we derive the Landau Hamiltonian as well as its energy levels. The Lowest Landau level (LLL) wavefunctions coincide with the coherent states for the mixed SU(3) representations. We discuss the quantum Hall effect for a filling factor $\nu =1$. where the obtained particle density is constant and finite for a strong magnetic field. In this limit, we also show that the system behaves like an incompressible fluid. We study the semi-classical properties of the system confined in LLL. These will be used to discuss the edge excitations and construct the corresponding Wess-Zumino-Witten action.Comment: 23 pages, two sections and references added, misprints corrected, version to appear in IJMP

An Experimental Work on Alkaline Resistance Glass Fiber Reinforced concrete

Conventional concrete has the draw backs of cracks due to plastic shrinkage, low tensile strength – compressive strength ratio, low ductility, expansion and contraction with change in temperature. Continuous research efforts are going on to develop a high performance concrete by using fibers and other admixtures. One such effort is the research on an alkaline resistance glass fiber reinforced concrete. GFRC has many advantages over conventional concrete such as It reduce the bleeding of concrete, which improves the surface integrity, homogeneity of concrete and reduces the probability of cracks. Glass fiber reinforced concrete (GFRC) is a composite concrete which has abilities to overcome all these deficiency and make construction faster, resistance of corrosion, durable and can increase the tensile strength of concrete. The alkaline resistance glass fiber reinforced concrete (ARGFRC) resists rust and corrosion and hence contributes to the durability of concrete. In this project, an attempt has been made to study the characteristics strength properties of alkaline resistance glass fiber reinforced concrete for structural applications. Alkaline resistance glass fiber with an aspect ratio of 857.1 were added to C35 grade reference concrete mix as reinforcement in proportions of 0.2%, 0.4%, 0.6% and 1% by the volume of concrete. 150 mm x 150 mm x 150mm cube moulds, 100 mm x 100 mm x 500mm beam moulds and 150 mm diameter and 300 mm high cylindrical specimens were cast and tested for all the ARGFRC concrete mixes for the C35 grade reference mix for strength comparison. Test is also conducted to study the effect of high temperature. The study shows that 0.6% addition of A.R glass fibers in ARGFRC has maximum compressive strength, split-tensile strength and flexural strength by 14.98% with respect to C35 grade reference concrete mix. Similarly, 1% addition of A.R glass fibers in ARGFRC has minimum characteristics strength by 2.26% with respect to C35 grade reference concrete mix. 0% addition of A.R glass fibers in ARGFRC has lowest decrease in high temperature strength by 14.26% with respect to compressive strength at 28 days. 0.6% addition of A.R glass fibers in ARGFRC has lowest workability by 74.44% with respect to C35 grade reference concrete mix and 1% addition of A.R glass fiber shows a negative trend in workability

Survival Probability for Open Spherical Billiards

We study the survival probability for long times in an open spherical billiard, extending previous work on the circular billiard. We provide details of calculations regarding two billiard configurations, specifically a sphere with a circular hole and a sphere with a square hole. The constant terms of the long-term survival probability expansions have been derived analytically. Terms that vanish in the long time limit are investigated analytically and numerically, leading to connections with the Riemann hypothesis

Praziquantel coverage in schools and communities targeted for the elimination of urogenital schistosomiasis in Zanzibar: a cross-sectional survey

© 2015 Knopp et al. Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated. The attached file is the published version of the article

A Delayed Black and Scholes Formula I

In this article we develop an explicit formula for pricing European options when the underlying stock price follows a non-linear stochastic differential delay equation (sdde). We believe that the proposed model is sufficiently flexible to fit real market data, and is yet simple enough to allow for a closed-form representation of the option price. Furthermore, the model maintains the no-arbitrage property and the completeness of the market. The derivation of the option-pricing formula is based on an equivalent martingale measure

Direct to consumer advertising via the Internet, a study of hip resurfacing

With increased use of the internet for health information and direct to consumer advertising from medical companies, there is a concern about the quality of the information available for patients. The aim of this study was to examine the quality of health information on the internet for hip resurfacing. An assessment tool was designed to measure quality of information. Websites were measured on credibility of source; usability; currentness of the information; content relevance; content accuracy/completeness and disclosure/bias. Each website assessed was given a total score, based on number of scores achieved from the above categories websites were further analysed on author, geographical origin and possession of an independent credibility check. There was positive correlation between the overall score for the website and the score of each website in each assessment category. Websites by implant companies, doctors and hospitals scored poorly. Websites with an independent credibility check such as Health on the Net (HoN) scored twice the total scores of websites without. Like other internet health websites, the quality of information on hip resurfacing websites is variable. This study highlights methods by which to assess the quality of health information on the internet and advocates that patients should look for a statement of an "independent credibility check" when searching for information on hip resurfacing

Success Story: Catatan Pengalaman Para Trainer dalam Menghidupkan Pendidikan Nilai di Sekolah, Pesantren dan Perguruan Tinggi

Buku ini mengekplorasi dampak positif kegiatan pelatihan pendidikan Menghidupkan nilai dengan pendekatan Living Values Education (LVE) yang diberikan oleh The Asia Foundation (TAF) kepada lembaga mitra: Yayasan Paramadina, Universitas Paramadina, PPIM UIN Jakarta, LSAF Jakarta, Yayasan LKiS, Satu Nama, Puskadiabuma UIN Yogyakarta, Yayasan Parakletos Ambon dan ARMC IAIN Ambon. Dukungan TAF tersebut diberikan kepada beberapa mitra sejak tahun 2009 sampai 2013. Program ini dilakukan di sekolah, pesantren dan Perguruan Tinggi dengan tujuan untuk meningkatkan pendidikan yang berkualitas karena selama ini sebagian terbesar dari para guru masih menggunakan metode lama seperti ceramah, sehingga anak cenderung bosan. Dengan pelatihan pendidikan menghidupkan nilai, bagaimana mencari metode yang tepat, agar nilai-nilai itu dapat diajarkan dan diimplementasikan dalam kehidupan sehari-hari. Pendekatan LVE sangat dibutuhkan sebagai sebuah metode pendidikan yang tepat untuk menghidupkan nilai pada anak sehingga akan terinternalisasi menjadi prinsip hidup positif yang akan dikembangkan anak di masa yang akan datang

Low-lying quadrupole collective states of the light and medium Xenon isotopes

Collective low lying levels of light and medium Xenon isotopes are deduced from the Generalized Bohr Hamiltonian (GBH). The microscopic seven functions entering into the GBH are built from a deformed mean field of the Woods-Saxon type. Theoretical spectra are found to be close to the ones of the experimental data taking into account that the calculations are completely microscopic, that is to say, without any fitting of parameters.Comment: 8 pages, 4 figures, 1 tabl