Indexation

A pedagogical review on supersymmetry in quantum mechanis is presented which provides a comprehensive coverage of the subject. First, the key ingredients on the quantization of the systems with anticommuting variables are discussed. The supersymmetric Hamiltotian in quantum mechanics is then constructed by emphasizing the role of partner potentials and the superpotentials. We also make explicit the mathematical formulation of the Hamiltonian by considering in detail the N=1 and N=2 supersymmetric (quantum) mechanics. Supersymmetry is then discussed in the context of one-dimensional problems and the importance of the factorization method is highlighted. We treat in detail the technique of constructing a hierarchy of Hamiltonians employing the so-called ‘shape-invariance’ of potentials. To make transparent the relationship between supersymmetry and solvable potentials, we also solve several examples. We then go over to the formulation of supersymmetry in radial problems, paying a spec...

A recent factor analysis oftheMultiple AffectAdjective check List (MAACL) changed the Anxiety, Depression, and Hostility scales from bipolar to unipolar scales and added two new scales: Positive Affect and Sensation Seek-ing. Internal reliability of the MAACL-R scales, ...

Callus induction from petiole explants has been achieved in Alocasia micholitziana `Green Velvet'. The highest percentage (71%) of explants inducing callus was obtained on MS medium supplemented with 0.5 μM 2,4-D and 0.5 μM kinetin in the dark after 4 months of culture. Shoots were regenerated at the highest frequency of 33.3% under light condition when 0.5 μM BA was added to MS medium with the average of 7.8±2.3 shoots per callus explant. The callus-derived shoots rooted on hormone free MS medium and within 4 weeks the plantlets were ready for acclimatization. The regenerated plants appeared morphologically similar to mother plants.

The novelty of the peer-to-peer (P2P) paradigm relies on two main concepts: cooperation among users and resource sharing. There are many applications based on peer-to-peer paradigm, but the most popular one is the file sharing. We can classify the file sharing application into centralized systems, (having a central server), and decentralized systems. Another classification would be structured and unstructured systems,

Jews in Mexico City have long organized themselves into ethnic sub-groups. Various labels circulate to refer to their members, including halebi (Aleppan), shami (Damascene), idish (Ashkenazi), and turco (Sephardi). Given recent demographic and religious changes, what is the contemporary role and relevance of these ethnic distinctions in Mexican Jewish identities? I explore this question through a focus on labeling practices, with special attention to terms applied to Jews of Syrian ancestry. I first consider the influence of ultra-Orthodox movements on these labels: While always important, notions of religiosity have come to trump other indexical values in distinguishing the social types they denote. I then discuss shajato, a derisive slur for most, but occasionally used to express pride in being shami or halebi. I argue that this more recent, ameliorated usage is made possible in part by shifts in relations between Syrian and Ashkenazi sectors. By analyzing metasemantic talk about these labels, as well their use in interaction, we see the fundamental interrelationships between social and semantic change in this immigrant-descendent community in Mexico.

Why do most leaders or managers elicit merely competent performance from their followers, while a select few inspire extraordinary achievement? Leadership expert Bernard Bass takes this question beyond the usual speculation, presenting original research that ...

Dodol is a popular traditional food that has great potential to be commercialized. The physico-chemical characterization of dodols such as proximate analysis, pH, moisture content, protein, fat, carbohydrate, ash and fibre contents are investigated. The rheological characterization of dodols were modelled by several models such Bingham, Power Law and Casson models. Regression analysis shows good agreements for all three models applied in this study. Dodol exhibits pseudoplastic behaviour under the conditions tested, as indicated by flow behaviour indices (n) ranging from 0.2 to 0.8 and is further confirmed with the data of decreasing apparent viscosity with increasing shear rate, indicating strong shear-thinning behaviour.

The Self-Organizing Map (SOM) algorithm has attracted a great deal of interest among researches and practitioners in a wide variety of fields. The SOM has been analyzed extensively, a number of variants have been developed and, perhaps most notably, it has been applied ...

Policy decisions at the organizational, corporate, and governmental levels should be more heavily influenced by issues related to well-being—people’s evaluations and feelings about their lives. Domestic policy currently focuses heavily on economic outcomes, although economic indicators omit, and even mislead about, much of what society values. We show that economic indicators have many shortcomings, and that measures of well-being point

From the New England Research Institutes, Watertown, Massachusetts (VK, GRC, RCR), Loyola University Medical Center, Maywood, Illinois (MPF), Cornell University, Weill Medical College, New York, New York (SAK), and Ferring International Pharmascience Center, ...

Tsallis statistics (or q-statistics) in nonextensive statistical mechanics is a one-parameter description of correlated states. In this paper we use a translated entropic index: $1 - q \to q$ . The essence of this translation is to improve the mathematical symmetry of the q-algebra and make q directly proportional to the nonlinear coupling. A conjugate transformation is defined $\hat q

This study was designed to determine the predictive value of lipid hydroperoxide (LOOH) levels for adverse cardiovascular outcomes in patients with stable coronary artery disease (CAD). Oxidative modification of circulating lipids contributes to inflammation and endothelial dysfunction, which are hallmark features of atherosclerosis. A serum biomarker of oxidation is LOOH, which is a primary product of fatty acid peroxidation. Serum LOOH levels were measured and correlated with clinical events over a 3-year period in 634 patients with angiographic evidence of CAD. Baseline LOOH levels in the highest quartile were associated with hazard ratios of 3.24 (95% confidence interval [CI] 1.86 to 5.65; p = 0.0001) for nonfatal vascular events (n = 149), 1.80 (95% CI 1.13 to 2.88; p = 0.014) for major vascular procedures (n = 139), and 2.23 (95% CI 1.44 to 3.44; p = 0.0003) for all vascular events and procedures. Baseline LOOH levels correlated with serum levels of soluble intercellular adhesion molecule-1 (p = 0.001) and thiobarbituric acid reactive substances (p = 0.001) as well as the mean percent change in stenosis for large segments >50% stenosed (p = 0.048). A multivariate proportional hazards model, adjusted for traditional risk factors and inflammatory markers, showed an independent effect of LOOH on nonfatal vascular events, vascular procedures, and all events or procedures. Amlodipine treatment was associated with reduced cardiovascular events and changes in LOOH levels compared with placebo. Elevated LOOH levels were predictive of nonfatal vascular events and procedures in patients with stable CAD, independent of traditional risk factors and inflammatory markers.