Development of a Japanese Scale that Evaluates the Level of Nursing Support Provided to Patients for Decision-Making in Cancer Clinical Trials.

Clinical nurses need learning programs that are useful in nursing support for patients' decision-making (NSPDM) regarding cancer clinical trials (CCTs). The usefulness of the learning program can be evaluated if the practices of NSPDM before and after participation in the learning program can be compared. We developed a scale to measure the level of self-assessed NSPDM regarding participation in a CCT. Thirty-two items of scale were developed in Japanese based on previous literature. Based on the results of a pilot study, items with similar meanings were removed and the validity of the 26 scale items was statistically examined in terms of construct validity and reliability. The study population was clinical nurses and included clinical research nurses. We received 102 valid responses from clinical nurses. Based on the bias of the boxplot distribution and the ceiling and floor effects for the items analysis of the 26-item draft scale, 17 items remained. Exploratory factor analysis (EFA) revealed that the scale consisted of three subscales and 17 items. Regarding fit indices of the model, the goodness-of-fit index (GFI), adjusted GFI (AGFI), comparative fit index (CFI), and root mean square error of application (RMSEA) were 0.775, 0.704, 0.477, and 0.081, respectively. The Cronbach's alpha coefficient for the overall scale was 0.951, with subscales ranging from 0.820 to 0.942. The validity and reliability of this scale were acceptable. This scale may be helpful to evaluate the usefulness of learning programs, i.e., the practice level of NSPDM.

Mechanistic study on the reaction of pinB-BMes2 with alkynes based on experimental investigation and DFT calculations: gradual change of mechanism depending on the substituent.

Transition metal-free direct and base-catalyzed 1,2-diborations of arylacetylenes using pinB-BMes2 provided a syn/anti-isomeric mixture of diborylalkenes. The kinetic analysis showed that the reaction rate and isomer ratio were affected by reaction conditions and substituents on the aryl ring. DFT calculations indicated that direct addition proceeded via the interaction of acetylene-π with the BMes2 fragment. In contrast, for the base-catalyzed diboration, the previously isolated sp2-sp3 diborane and borataallene were confirmed as stable intermediates by calculations. The whole reaction pathways can be divided into the Bpin-migration and deprotonation steps, where the borataallene should be considered as a common intermediate. It should be noted that the deprotonation step is reversible and affords the kinetically less favoured isomer under the thermodynamic conditions. As a result, the composition of isomeric products, in the base-catalyzed diboration, is attributed to the small difference of activation barriers between direct and base-catalyzed systems.

Direct and Base-Catalyzed Diboration of Alkynes Using the Unsymmetrical Diborane(4), pinB-BMes2.

In the absence of transition metal catalysts, the unsymmetrical diborane(4), pinB-BMes2, reacted with alkynes to afford diborylalkenes. The isomer ratio of the products could be controlled via temperature, solvent, and additive(s). A reaction mechanism was proposed on the basis of two isolated intermediates, and this reaction could furthermore be applied to synthesize a luminescent molecule.