Narrow Results

In this paper, we investigate a nonlocal multi-point and multi-strip coupled boundary value problem of nonlinear fractional Langevin equations. The standard fixed point theorems (Leray–Schauder’s alternative and Banach’s fixed point theorem) are applied to derive the existence and uniqueness results for the given problem. We also discuss the Ulam–Hyers stability for the given system. Examples illustrating the obtained results are presented. Some new results appearing as special cases of the present ones are also indicated.

In this paper, we introduce and investigate a new class of coupled fractional $q$-integro-difference equations involving Riemann–Liouville fractional $q$-derivatives and $q$-integrals of different orders, equipped with $q$-integral-coupled boundary conditions. The given problem is converted into an equivalent fixed-point problem by introducing an operator whose fixed-points coincide with solutions of the problem at hand. The existence and uniqueness results for the given problem are, respectively, derived by applying Leray–Schauder nonlinear alternative and Banach contraction mapping principle. Illustrative examples for the obtained results are constructed. This paper concludes with some interesting observations and special cases dealing with uncoupled boundary conditions, and non-integral and integral types nonlinearities.

We study the three body system by using the fixed center approximation to the Faddeev equations, taking the interaction between N and , N and K, and and K from the chiral unitary approach. Our results suggest that a hadron state, with spin-parity J^P = 1/2⁺, and mass around 1920 MeV, can be formed.

In recent years, there has been a growing debate on the contributions to innovation contexts. This research aims to analyze the differences emerging from the conceptualization of contexts in the “innovation ecosystem” (IE) and its linkages to the innovation system (IS) and network concepts and depict the current research trends in innovation and their expected evolution.

Our methodological choice is a bibliometric analysis as it allows us to review and focus on the theoretical proposals by the scholars in detail. The research process has been conducted through a co-word analysis on the authors’ keywords as this approach is considered to be the most suitable to compare the dynamics of different research trends on a specific topic. The analysis was performed in two steps: the first based on all the research papers collected and the second based on a sub-dataset extrapolated from the main datasets on IS and innovation network (IN) literatures.

The results demonstrate that both IS and IN research streams are, in some ways, connected with the IE perspective. The definitions and concepts used in the IS and IN literatures have been identified as replicated in the ecosystem approach even if specific insights have been generated.

This chapter begins by addressing the food, energy, and water trilemma. A critique of the impact of neoliberalism that traces the transition from industrial to financial capitalism follows. The trade-off arising from improvements in living standards and environmental impact is then explored. In a context where socioeconomic and cultural differences result in conflicting views of what is virtuous, there is a problem of trust. The central proposition is that a new frame grounded in New Institutional Economics (NIE) is required. Fintech and distributed ledger technology (DLT) offer a unique way of building the essential institutional infrastructure required to overcome the problem of trust. Examples showing how fintech can address climate change follow. Whilst these initiatives are to be applauded, new international institutional infrastructure is required to enable fintech to realise its potential. Examples of future possibilities are presented. The chapter concludes by making the case for a new paradigm that prioritises international cooperation because unrestrained competition will lead to rising temperatures, mass migrations, and the collapse of civilisation as we know it.