I am not just a nurse: The need for a boundaried ethic of care in the context of prolific relationality

The Ethics of Care (EoC) theory has been widely applied in the field of management, and there is a growing consensus that it is important to recognise the value and practice of care in the workplace. In this paper, we consider the implications of the EoC at work, and in particular the risks unboundaried care demands may pose to employees who encounter unmanageable ‘calls to care’. We present findings from interviews with 27 nurses in Malaysia, which suggest that the demand to care at work, in addition to demands made in the non-work sphere, may be unmanageable. We argue for a more boundaried approach to the EoC at work with a view to ensuring that in valuing care we do not over-burden the carer

Duality and Symmetry in Chiral Potts Model

We discover an Ising-type duality in the general $N$-state chiral Potts model, which is the Kramers-Wannier duality of planar Ising model when N=2. This duality relates the spectrum and eigenvectors of one chiral Potts model at a low temperature (of small $k'$) to those of another chiral Potts model at a high temperature (of $k'^{-1}$). The $\tau^{(2)}$-model and chiral Potts model on the dual lattice are established alongside the dual chiral Potts models. With the aid of this duality relation, we exact a precise relationship between the Onsager-algebra symmetry of a homogeneous superintegrable chiral Potts model and the $sl_2$-loop-algebra symmetry of its associated spin-$\frac{N-1}{2}$ XXZ chain through the identification of their eigenstates.Comment: Latex 34 pages, 2 figures; Typos and misprints in Journal version are corrected with minor changes in expression of some formula

Quantum Loop Subalgebra and Eigenvectors of the Superintegrable Chiral Potts Transfer Matrices

It has been shown in earlier works that for Q=0 and L a multiple of N, the ground state sector eigenspace of the superintegrable tau_2(t_q) model is highly degenerate and is generated by a quantum loop algebra L(sl_2). Furthermore, this loop algebra can be decomposed into r=(N-1)L/N simple sl_2 algebras. For Q not equal 0, we shall show here that the corresponding eigenspace of tau_2(t_q) is still highly degenerate, but splits into two spaces, each containing 2^{r-1} independent eigenvectors. The generators for the sl_2 subalgebras, and also for the quantum loop subalgebra, are given generalizing those in the Q=0 case. However, the Serre relations for the generators of the loop subalgebra are only proven for some states, tested on small systems and conjectured otherwise. Assuming their validity we construct the eigenvectors of the Q not equal 0 ground state sectors for the transfer matrix of the superintegrable chiral Potts model.Comment: LaTeX 2E document, using iopart.cls with iopams packages. 28 pages, uses eufb10 and eurm10 fonts. Typeset twice! Version 2: Details added, improvements and minor corrections made, erratum to paper 2 included. Version 3: Small paragraph added in introductio

Bethe Equation of τ(2)\tau^{(2)}-model and Eigenvalues of Finite-size Transfer Matrix of Chiral Potts Model with Alternating Rapidities

We establish the Bethe equation of the $\tau^{(2)}$-model in the $N$-state chiral Potts model (including the degenerate selfdual cases) with alternating vertical rapidities. The eigenvalues of a finite-size transfer matrix of the chiral Potts model are computed by use of functional relations. The significance of the "alternating superintegrable" case of the chiral Potts model is discussed, and the degeneracy of $\tau^{(2)}$-model found as in the homogeneous superintegrable chiral Potts model.Comment: Latex 25 pages; Typos corrected, Minor changes for clearer presentation, References added-Journal versio

Information Content of Equity Analyst Reports

This paper investigates the market reaction to the information released in security analyst reports. It shows that the market reacts significantly and positively to changes in recommendation levels, earnings forecasts, and price targets. While changes in price targets and earnings forecasts both provide information to the market, revisions in price targets have a larger and more significant impact than comparable revisions in earnings forecasts. The text of the report is also a significant source of information as it provides the justifications supporting an analyst's summary opinion. When all of this information is considered simultaneously, some of it, notably the earnings forecasts, is subsumed. The results further show that analysts correctly predict price targets slightly over 50% of the time. Finally, the valuation methodology used does not seem to be correlated with either the market's reaction or the analyst's accuracy.

Saving Shortfalls and Delayed Retirement

Prior research has suggested that many older Americans have not saved enough to maintain consumption levels in old age. One way older persons might respond to inadequate savings would be to extend their worklives by delaying retirement. This paper examines evidence on this matter using the Health and Retirement Study, a nationally representative panel survey of people age 51-61 in 1992 followed for several years in a panel. We use the data to project household retirement assets and to determine how much more saving would be needed to preserve post-retirement consumption levels. Our research then examines the links between derived saving shortfall measures and delayed retirement patterns. Among nonmarried persons, there is evidence that larger shortfalls do produce delayed retirement, though the effect is not quantitatively large. For married couples, pre-retirement wealth shortfalls do not appear to be significantly associated with delayed retirement. Evidently couples have other means of handling saving shortfalls.

Critical densities for the Skyrme type effective interactions

We use the stability conditions of the Landau parameters for the symmetric nuclear matter and pure neutron matter to calculate the critical densities for the Skyrme type effective nucleon-nucleon interactions. We find that the critical density can be maximized by adjusting appropriately the values of the enhancement factor $\kappa$ associated with isovector giant dipole resonance, the quantity $L$ which is directly related to the slope of the symmetry energy and the Landau parameter $G_0^\prime$. However, restricting $\kappa$, $L$ and $G_0^\prime$ to vary within acceptable limits reduces the maximum value for the critical density $\tilde\rho_{cr}$ by $\sim 25$. We also show that among the various quantities characterizing the symmetric nuclear matter, $\tilde\rho_{cr}$ depends strongly on the isoscalar effective mass $m^*/m$ and surface energy coefficient $E_s$. For realistic values of $m^*/m$ and $E_s$ we get $\tilde\rho_{cr} = 2\rho_0$ to $3\rho_0$ ($\rho_0 = 0.16$fm$^{-3}$).Comment: 10 pages, 3 figures. Physicsl Review C (in press

Steering a future through Scenarios : into the academic library of the future

Author name used in this publication: Lai-chong AuAccepted ManuscriptPublishe

Modeling Lifetime Earnings Paths: Hypothetical versus Actual Workers

To assess the distributional effects of social security reform proposals, it is essential to have good information on real-world workers’ lifetime earnings trajectories. Until recently, however, policymakers have relied on hypothetical earnings profiles for policy analysis. We use actual lifetime earnings data from the Health and Retirement Study (HRS) to compare actual workers’ covered earnings profiles to these hypothetical profiles. We show that the hypothetical profiles do not track earnings patterns of current retirees; thus lifetime pay levels are much higher than for most HRS workers. Therefore, using hypothetical profiles could misrepresent benefits paid and taxes collected under such reforms.

Biological relationships of mites associated with insects

Thesis (M.A.)--Boston University, 1950Our knowledge of Acarina is limited. Life histories have not been studied because it is difficult to rear these mites in the laboratory. Of the two-hundred or more identified mite larvae known in 1946, only twelve are known as nymphs or adults. However, this lack of knowledge in taxonomy does not appear to hinder the work on the biological relationships of mites associated with insects. Mites attacking members of the order, Orthoptera, were described by Lawrence (1940), Howard (1918), Hamilton (1914), Wehrle and Welch (1925), and Radford (1946). The mites attacked mainly the grasshoppers and locueta. These mites belonged to four families: Trombidiidae, Erythraeidae, Tarsonemidae, and Tyroglyphidae. Walsh (1868), Shimer (1868), Lignieres (1893), Riley (1873), and Ewing (1912) gave accounts of mites attacking the scale insect eggs and adults. These mites, which play an important part in the natural control of scale insects, include: Hemisarcoptes malus (Shimer), Monieziella entomophaga Laboulbene, Tydeus cocoophagus Ewing, Bdells cardinalis Banks, Cyta brevipalpa Ewing, Anystis agilis Banks, Eupalus sp., Tetranychus telariue Linne, and Oribata sp.. Of the mites which are parasitic on members of the order Hymenoptera, the most important one is Acarapis woodi (Rennie) which is the causative agent of the well-known Isle of Wight disease of honey bees. The mites infest the tracheal system of the bees and cause death due to the possible secretion of a toxic substance by the mite. White (1921), who reported on this acarine disease, experimented with healthy bees in an attempt to secure information on the mechanical effects of obstruction of the honey bee's tracheal system. The transmission of this disease was reported on by Burnside, Sturtevant, and Halst (1949). Other mites associated with hymenopterans were commensals. The Gamasid mites of the genus, Antennophorus, were described by Wheeler (1910) and Michael (1891, 1894). A certain biological specificity in the relationships with ants wes shown by these mites. One species of Gamasid mite usually was found with only one or two species of ants. LeVeque (1930, 1931) worked extensively on the mites belonging to the genus, Dinogamasus, Kramer. She described several new species of this genus and listed the different groups in whioh the species of Dinogamasus were placed. The groups listed were the perkinsi group, the alfkeni group, the ootoconus group, and the braunsi group. Descriptions of oommon features of the members of the groups and keys for distinguishing between the various species were also included. Marshall (1938), Shapiro, Saliternik, and Belferman (1944) reported the finding of larvae of bydrachnid mites as external parasites on adult mosquitoes. Other records of these water-mite larval parasites were made by Wolcott (1905) and Soar and Williamson (1925). The larvae of Hydrachna (Mulller) Latreille live parasitically on aquatic insects, larvae of Limnoohares Latreille live parasitically on water-bugs, larvae of Eylais Latreille are parasites on insects which leave the water and became aerial, and larvae of the family Hydryphantidae leave the water and live parasitically on aerial fnsects. Mites found on Buprestid beetles and Cerambycid beetles attack in particular in the ventral joints and sutures of the host insect. Lawrence (1940a) described a mite, Pysmephorus crassipes, which was found on the beetles. Anothe mite parasite of beetles, Uropoda vegetans de Geer, reported on by Riley (1877), developed an adaptive organ for attachment. The organ was an extensile organ which issued from the anal vent just beneath the extremity of the body and stuck to the beetle by means of a flattened disc. The mite parasite, Pediculoides ventricosus Newport, which attacks the grain moth, Sitotroga oereallela Oliv. is beneficial to man. It acts as a natural control for the destruction of the grain moth. More recently in 1948 mites of the genus Leptus were found parasitic on species of Corythucha. This discussion given on mite-insect relationship is not by any means complete, but it does point to the fact that investigations have been carried out and that there are great opportunities tor any researcher who may be interested in this field of study