We show how the rootogram – a graphical tool associated with the work of J. W. Tukey and originally used for assessing goodness of fit of univariate distributions – can help to diagnose and treat issues such as overdispersion and/or excess zeros in regression models for count data. Two empirical illustrations, from ethology and from public health, are included. The former employs a negative bin...

" O u t of b r e a d t h ? " W h y did I pick this topic? Well , the a n s w e r is, largely, because I t h o u g h t I had s o m e t h i n g to say c o n c e r n i n g the b r ead th of knowledge , un ivers i ty cu r r i cu la , life in genera l ; in shor t , the k ind of we l l -mean t adv ice tha t y o u r pa ren t s , uncles , a u n t s , and s u n d r y f r i ends a n d n e i g h b o r s i...

a U G A l u n c h e o n t a l k i n f a l l 2 0 0 7 . G r e g N i e l s e n o v e r l o o k i n g h i s f i e l d a r e a o f S n o w C a n y o n S t a t e

We recall from [10] a Gδ σ-ideal of compact subsets of 2 ω and prove that it is not Tukey reducible to the ideal I1/n = {H ⊆ ω : ∑ h∈H 1/h <∞}. This result answers a question of S. Solecki and S. Todorčević in the negative.

W e present detai led experimental results concerning the temperature and concentration dependence of the 2 0 9 B i K n i g h t shift and the N M R l inewidth in l iquid B i N i . The measurements are carried out in a n external magnetic field of about 39 K G over the concentration range (0—35) a t . % N i a t temperatures f rom 400 K to 1300 K . According to our experimental results there are ...

Dearnaley D, Syndikus I, Mossop H, et al. Conventional versus hypofractionated h i g h d o s e i n t e n s i t y m o d u l a t e d radiotherapy for prostate cancer: 5-year outcomes of the randomised, non-inferiority, phase 3 CHHiP trial. Lancet Oncol 2016; 17: 1047–60— In fi gure 4B of this Article, the curves for 57 Gy grade 1+ and 60 Gy grade 1+ were incorrect. The figure has been updated. Th...

One partially ordered set, Q, is a Tukey quotient of another, P – denoted P?TQ if there map ?:P?Q carrying cofinal sets to Q. Let X be space and denote by K(X) the set compact subsets X, inclusion. For certain separable metrizable spaces M, upper lower bounds K(M) are calculated. Results on invariants K(M)'s deduced. The structure all under ?T investigated. Particular emphasis placed position w...