The magnetic properties of molecule-based magnets are commonly rationalized by considering only a single nuclear configuration of the system under study (usually an X-ray crystal structure). Here, by means of a computational study, we compare the results obtained using such a static approach with those obtained by explicitly accounting for thermal fluctuations, and uncover the serious limitatio...

The detection and evaluation of influential observations are critical aspects of data analysis in the context of linear regression models. The assessment of whether the change in the model resulting from the inclusion/exclusion of each respective data point is major is usually based on cut-off values for the influence measure obtained from asymptotic approximations. However, the asymptotic appr...

Journalists and editors seldom highlight errors and misjudgements by other members of their trade. An exception was The Guardian’s story on 1 October headed “Media accused of scaremongering on cancer jab death” and subtitled “Coverage causing more harm than good”. The case at issue was that of a 14-year old Coventry schoolgirl who had died a few days previously, after receiving human papilloma ...

Experiments were conducted at the CSIR-Crops Research Experimental station at Kumasi, Ghana, to determine the effects of seed sorting and planting device on yield of maize in the 2014 major growing season. Two jab planters were used to plant sorted and unsorted seeds. The control treatment was cutlass planting of unsorted seed. One of the jab planters was imported from China; and the other was ...

The aim of this study was to determine the influence of punch type (Jab, Cross, Lead Hook and Reverse Hook) and punch modality (Single maximal, 'In-synch' and 'Out of synch' combination) on punch speed and delivery time. Ten competition-standard volunteers performed punches with markers placed on their anatomical landmarks for 3D motion capture with an eight-camera optoelectronic system. Speed ...

We evaluated the efficacy of different field sampling approaches for volunteers sampling macroinvertebrates in low-gradient streams. We used a series of analytical metrics to compare results using the Environmental Protection Agency (EPA) multihabitat, the Minnesota Pollution Control Agency multihabitat, and EPA single-habitat sampling protocols. We also investigated the effect of 2 scenarios i...