Measurement of a Mixed Spin Channel Feshbach Resonance in Rubidium 87

We report on the observation of a mixed spin channel Feshbach resonance at the low magnetic field value of (9.09 +/- 0.01) G for a mixture of |2,-1> and |1,+1> states in 87Rb. This mixture is important for applications of multi-component BECs of 87Rb, e.g. in spin mixture physics and for quantum entanglement. Values for position, height and width of the resonance are reported and compared to a recent theoretical calculation of this resonance.Comment: 4 pages, 3 figures minor changes, actualized citation

Away With SWOT Analysis: Use Defensive/Offensive Evaluation Instead

SWOT analysis, which delves into a business' strengths, weaknesses, opportunities, and threats, is used widely in firms and classrooms to distill fragmentary facts and figures into concise depictions of the strategic landscape.  Yet despite its popularity and longevity, the SWOT approach to situation assessment often is ineffective.  This article begins with a brief critique of the SWOT framework ­and typical SWOT analysis guidelines.  Thereafter, Defensive/Offensive Evaluation (DOE) is advanced as an effective alternative to SWOT analysis.  Because DOE is more theory-driven, it poses keener questions and promises more illuminating answers

Bose-Einstein condensation at constant temperature

We present a novel experimental approach to Bose-Einstein condensation by increasing the particle number of the system at almost constant temperature. In particular the emergence of a new condensate is observed in multi-component F=1 spinor condensates of 87-Rb. Furthermore we develop a simple rate-equation model for multi-component BEC thermodynamics at finite temperature which well reproduces the measured effects.Comment: 4 pages, 3 figures, RevTe

Card-Contingent Discounts As Sources Of Customer Satisfaction And Dissatisfaction: An Exploratory Inquiry

The reported exploratory study was undertaken to illuminate the effects of card-contingent discounts (CCDs) on customer satisfaction and dissatisfaction.  CCDs are price reductions on certain items that are given only to customers who present a card issued by the seller.  Results from our survey of 953 grocery store patrons indicate that shoppers tend to frame CCDs as price reductions to which they are entitled; denying discounts is judged unfair.  Typical customers are content, rather than delighted, when CCDs are granted and are disappointed or annoyed when CCDs are withheld.  CCDs, therefore, seem more likely to engender dissatisfaction than enhance satisfaction

An Inquiry into the Nature of Tibetan Proverbs

Proverbial sayings and expressions are extremely popular in Tibetan literature. However, in Tibetan scholarship there is no clear definition of the Tibetan proverb. Indigenous genres such as tampé, pechö, legshé, etc. all approximate the genre of proverbs in one way or another, yet at the same time add features that also contradict the genre definition. The essay explores the notion of tampé and related genres and highlights the importance of a universal definition in order to not only differentiate between closely related genres but also in order to classify entries in the proposed dictionary of Tibetan popular figurative literature

An Inquiry into the Nature of Tibetan Proverbs

Proverbial sayings and expressions are extremely popular in Tibetan literature. However, in Tibetan scholarship there is no clear definition of the Tibetan proverb. Indigenous genres such as tampé, pechö, legshé, etc. all approximate the genre of proverbs in one way or another, yet at the same time add features that also contradict the genre definition. The essay explores the notion of tampé and related genres and highlights the importance of a universal definition in order to not only differentiate between closely related genres but also in order to classify entries in the proposed dictionary of Tibetan popular figurative literature

Dynamics of F=2 Spinor Bose-Einstein Condensates

We experimentally investigate and analyze the rich dynamics in F=2 spinor Bose-Einstein condensates of Rb87. An interplay between mean-field driven spin dynamics and hyperfine-changing losses in addition to interactions with the thermal component is observed. In particular we measure conversion rates in the range of 10^-12 cm^3/s for spin changing collisions within the F=2 manifold and spin-dependent loss rates in the range of 10^-13 cm^3/s for hyperfine-changing collisions. From our data we observe a polar behavior in the F=2 ground state of Rb87, while we measure the F=1 ground state to be ferromagnetic. Furthermore we see a magnetization for condensates prepared with non-zero total spin.Comment: 4 pages, 2 figures, RevTe

Dynamics and thermodynamics in spinor quantum gases

We discuss magnetism in spinor quantum gases theoretically and experimentally with emphasis on temporal dynamics of the spinor order parameter in the presence of an external magnetic field. In a simple coupled Gross-Pitaevskii picture we observe a dramatic suppression of spin dynamics due to quadratic Zeeman ''dephasing''. In view of an inhomogeneous density profile of the trapped condensate we present evidence of spatial variations of spin dynamics. In addition we study spinor quantum gases as a model system for thermodynamics of Bose-Einstein condensation. As a particular example we present measurements on condensate magnetisation due to the interaction with a thermal bath.Comment: 8 pages, 7 figure

Flagellar sensilla in male and female European beewolves, Philanthus triangulum F. (Hymenoptera: Sphecidae)

We investigated the morphology of the antennal sensilla of a sphecid wasp, the European beewolf Philanthus triangulum, to provide an inventory for the species and to compare the sensillar equipment between the sexes. The density of sensilla increased from the base to the tip of the antennae. We distinguished nine different types of sensilla. One type has not yet been described in Hymenoptera. The large sensilla basiconica occurred only on the antennae of female beewolves. We discuss the functional significance of the difference between the sexes and compare our results with data from other sphecids and the honeybee Apis mellifera