Many authors focused on coupled fixed point theory and proved remarkable results (see [4 17]).
After this remarkable contribution, many authors focused on partial metric spaces and its topological properties (see, e.g. [3]-[8]).
In recent years, many authors focused attention on constructing the fixed point of Bregman nonlinear operators by utilizing the Bregman distance and the Bregman projection, see [18 23] and the references therein.
Recently, due to the difference analog of the lemma on the logarithmic derivative given by Halburd and Korhonen in [5], and Chiang and Feng in [6] independently, many authors focused their interest on the complex difference analogs of Nevanlinna theory and complex difference equations (see [5 13]).
Recently, in a linear setting, many authors focused on the existence of solutions to equilibrium problems for vector mappings; see, for example, Ansari and Yao [6], Ansari and Flores-Bazán [7], Fu [8], Fu and Wan [9], Khan [10], Khan et al. [11], Khan and Chen [12], Hou et al. [13], Iusem and Sosa [14], Chen et al. [15], Kassay et al. [16], and the authors referenced by their works.
Many authors focused their research or papers on differential diagnosis in dementia.
Unlike Gupta (2011), many authors focus (merely) on the product perspective.
Many authors focus also on the impact of ICT on the society and on education, in form of reflections more than empirical practice (e.g., on the digital divide) (see concept path in the theme university: gestión-conocimiento – sociedad - nuevas tecnologías de la información y la comunicación - educativos).
Many authors focus on technological aspects and specific functionalities of particular tools.
Many authors have focused on the contribution of inner farm nutrient recycling to closed nutrient cycles, but little is known about the contribution of exchanges among farms to nutrient cycling.
Recently, many authors have focused on the PMS and its topological properties(see for example [3 15]).
