During virus assembly, viral precursor proteins form an empty capsid (procapsid) that undergoes large structural changes to become a mature capsid. In the case of Escherichia coli bacteriophage k, an icosahedral virus of triangulation number T=7 with a non-contractile tail, the procapsid, is comprised mainly of the major capsid protein gpE. The expansion of the prohead occurs upon DNA packing. ...

Benthic infaunal communities are frequently used to assess aquatic environmental condition, but interpretation of benthic data is often subjective and based on best professional judgment. Here, we examine the repeatability of such assessments by providing speciesabundance data from 35 sites to 9 independent benthic experts who ranked the sites from best to worst condition. Their site rankings w...

Third party liability insurance settlements are by their nature the result of negotiations between the claimant, or his/her representative, and a representative of the insurer, acting on behalf of the policyholder (Ross, 1980). When substantial non-economic or general damages are expected in any settlement, such as in auto bodily injury liability claims, the nature of the settlement process mus...

Creativity and Reason in Cognitive Development is a novel and appropriate attempt to synthesize various threads on the nature of reasoning and the nature of creative thinking to investigate their interplay and educational impact. Such general questions that are posed are: To what extent do creativity and imagination decline in childhood?,, Is there something about the development of one kind of...

A benthic index of biotic integrity was developed for use in estuaries of the southeastern USA (Cape Henry, VA; St. Lucie Inlet, FL) using a modi®cation of the method developed by Weisberg et al. (1997. An estuarine benthic index of biotic integrity (B-IBI) for Chesapeake Bay. Estuaries, 20 (1), 149±158). Data from non-degraded stations sampled in 1993 and 1994 were analyzed using classi®cation...

This paper describes an Arc add-in for the delta method for regression models. The method works for linear models, generalized linear models, nonlinear models and also for generalized nonlinear models. The delta method is a procedure for finding estimates and approximate standard errors of arbitrary functions of normally distributed random variables. As implemented in Arc, the delta method is u...

ECTOPIA of the macula is a rare condition, having been recorded in the literature only eight times (although a few instances of the condition have also been noted in the foetal eye). Its apparent rarity is thought to justify the publication of a further case, in which a vertical displacement of the macula resulted from an attack of choroido-retinitis. Ectopia of the macula may be produced by se...

Three sources of difficulty for the nine-dot problem were hypothesized: 1) turning on a nondot point, i.e., ending one line and beginning a new line in a space between dots; 2) crossing lines, i.e., drawing lines that intersect and cross; and 3) picking up interior dots, i.e., drawing lines that cross dots that are in the interior of the nine-dot and its variants. Training was designed to eithe...

This study investigated the drawing processes of a Chinese ink painter through field observation, interviews, and a field experiment. Compared to many studies using a single method such as interview only, this multimethod study enabled us to capture the creative processes from various perspectives. We observed processes of drawing in a temple and asked the painter to draw 16 pictures in a field...