We consider the goals of the introductory course in classical mechanics taken by physics majors and argue both that these goals are not well met in actual courses and that the goals themselves should be rethought. We propose alternative goals and describe an introductory ‘‘modern mechanics’’ course that addresses these alternative goals. Included in the description are several genres of homewor...

The time divergence of classical nonlinear response functions reveals the fundamental difficulty of dynamic perturbation based on classical mechanics. The nature of the divergence is established for systems in regular motions using asymptotic decomposition of Fourier integrals. The asymptotic analysis shows that the divergence cannot be removed by phase-space averaging such as the Boltzmann dis...

Evaluative conditioning (EC) is often regarded as an automatic affective learning process. Yet, recent empirical evidence suggests that EC may actually be sensitive to contingency awareness and to the availability of attentional resources. Here, we examine for the first time a third horseman of EC automaticity: processing goals. Specifically, we had participants engage an EC task after completi...

Let U, V, W be independent random variables having a standard gamma distribution with respective shape parameters a, b, c, and define X = U/(U + W), Y = V/(V + W). Clearly, X and Y are correlated each having a beta distribution, X ∼ B(a, c) and Y ∼ B(b, c). In this article we derive probability density functions of XY, X/Y and X/(X + Y).

OBJECTIVES To understand which aspects of general practitioner (GP) and HIV clinic appointments people living with HIV (PLWHIV) most value when seeking advice for new health problems. METHODS A discrete choice experiment using a convenience sample of people diagnosed with HIV. Participants were recruited from 14 general HIV clinics in the South East of England between December 2014 and April ...

We discuss the construction of the spectral curve and the action integrals for the " elliptic " XY Z spin chain of the length Nc. Our analysis can reflect the integrable structure behind the " elliptic " N = 2 supersymmetric QCD with N f = 2Nc .

! #"$ # %& ! "' $ ( ) * ! +"',!"' # . #" "',! / %0 1 2 %0 3% 45 6"' $ 0 "#7 ! # % #"$"$ 89 :4;%0 3 #%& # $*<(= "$ > $ # 0 0 ? 0 = > % @A* ( 0 !@5 ! /? $ "$ "$"$ %& B%2 C D E@ %0 FG7H = "$ D $4I 0 # A4;%0 8J ? ! K L #"$ # 2 %0 "#MON / P G% @ Q%04 "', !* / %0 1 2 %0 R %H " "A % / S"',! / %& 1 %& +"$ G # # * T %0 "U = V "$ C W 0 C %0 "#M XY %0 G%&"$ 0 Z # H $*<( 0"$ "',! C/! %& 1 2 %& [ %H \ / ] 0...