We report on the cited papers refs. 1-18 from the following points of view: What do we exactly know about solutions when no exact solution (in the sense of " solution in closed form ") is available? In which sense do these solutions possess a singularity? In which cases do conformal relations and/or dimensional reductions simplify the deduction? Furthermore, we outline some open questions worth...

Building Information Management (BIM) and Digital Twin (DT) technology can optimise lighting to support human health well-being the building’s energy performance. The data exchange between a physical virtual environment was investigated, focusing on scenario in which optimal interaction daylight electric light derives an optimised realisation of given demand curve. Investigation validation DT m...

Many firms are engaging in the digital transformation (DT) of their sales forces, and this trend has accelerated during COVID-19 pandemic. However, research on DT as a profound organizational change process, well salespeople’s individual psychological reactions to such initiatives, is still limited. Although offers salespeople more better resources for work-related goal attainment, it increases...

The Lagrange equations of motion are familiar to anyone who has worked in physics. However, their range of validity is rarely, if ever, a topic for discussion. Following on an earlier examination of the consequences for these equations if the mass is not assumed constant, this note will look carefully at the other assumptions made and consider any further consequences resulting. The form of the...

to evaluate the effect of different light intensities on the degree of conversion (dc) of dual-cured resin cement at different depths of translucent fiber posts.thirty translucent fiber posts were randomly assigned into three (n=10) groups. they were cemented in the simulated canal spaces using duo-link dual-cured resin cement. the cement was light-cured under 600, 800 and 1100 mw/cm(2) light i...

BACKGROUND Parasitic infections are prevalent among pregnant women in sub-Saharan Africa. We investigated whether prenatal exposure to malaria and/or helminths affects the pattern of infant immune responses to standard vaccinations against Haemophilus influenzae (Hib), diphtheria (DT), hepatitis B (Hep B) and tetanus toxoid (TT). METHODS AND FINDINGS 450 Kenyan women were tested for malaria, ...

Preparation of chitosan (CS) microspheres as a novel drug delivery vehicle for intranasal immunization using high, medium and low CS molecular weight (MW) was investigated in this study. Diphtheria toxoid (DT) was used as a model antigen. The emulsion-solidification method was adopted for microencapsulation of DT.  In the first step, following the purification of semi-crude DT by the ion-exchan...