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Various new exact solutions to (3+1)\left(3+1)-dimensional Wazwaz–KdV equations are obtained in this work via two techniques: the modified Kudryashov procedure and modified simple equation method. The 3D plots, contour plots, and 2D plots of some obtained solutions are provided to describe the dynamic characteristics of the obtained solutions. Our employed techniques are very helpful in constructing new exact solutions to several nonlinear models encountered in ocean scientific phenomena arising in stratified flows, shallow water, plasma physics, and internal waves.

This article discusses the stability results for solution of a fractional q-integro-differential problem via integral conditions. Utilizing the Krasnoselskii’s, Banach fixed point theorems, we demonstrate existence and uniqueness results. Based on the results obtained, conditions are provided to ensure the generalized Ulam and Ulam–Hyers–Rassias stabilities of the original system. The results are illustrated by two examples.

The swift decline in the quantity and quality of natural resources and the public's increased awareness about it is putting steep pressure on manufacturing and services firms to follow eco-friendly practices. The United Nations has made it imperative for organizations to ensure sustainability in their operations. This study investigates whether the quality management system within an organization helps them achieve environmental innovation and sustainable development goals? It also examines does environmental innovation facilitates firms in achieving sustainable development goals? Six quality management practices are taken from the American 'Malcolm Baldrige National Quality Award'; environmental innovation includes product and process innovation, and corporate sustainability includes environmental, social, and economic dimensions. The authors followed the non-probability convenience sampling technique to collect data from the junior, middle, and senior managers from medium and large-size services and manufacturing firms from July 2019 to October 2019. The structural analysis indicated that quality management facilitates firms to achieve their environmental innovation and sustainability goals; environmental innovation significantly enables organizations to achieve sustainability goals. Dimensional analysis indicated that quality management significantly impacts all studied dimensions. However, environmental innovation is found to have an insignificant impact on social sustainability. The findings of this study provide valuable insights to the managers of the manufacturing and services firms concerning eco-innovation and sustainability goals and conclude by offering recommendations for future studies. [ABSTRACT FROM AUTHOR]

The work aims to explore the exponential rational function technique and the generalized Kudryashov procedure to investigate one of the most important equations which is the equation of cold bosonic atoms in a zig-zag optical lattice. The considered equation is reduced to a supreme equation by using the continuum approximation which describes the soliton's dynamics with the implication pulse variables. The adopted techniques are accurate, simple, straightforward, and succinct to compute. [ABSTRACT FROM AUTHOR]

Destination is an important carrier for tourism activities to be carried out, and tourists are the main body of tourism activities. Service encounters are a crucial component of tourists' experiences and an important factor affecting tourists' attitudes and behavioral intentions. This research used the SOR model as the theoretical basis to analyze the dimensions of service encounters and the impact of service encounters on tourists' attitudes and behavioral intentions toward a destination in China. The research results indicate that service encounters have multidimensional attributes. In addition to interpersonal service encounters, the service environment of tourism enterprises and the public service environment of the destination are also important components of service encounters. At the same time, service encounters have an impact on tourists' attitudes and behavioral intentions. The research findings have implications for destination managers in terms of improving service quality and promoting the sustainable development of destinations. [ABSTRACT FROM AUTHOR]

Several location-based service (LBS) applications (e.g., navigation [[1]], location tracking [[2]], intelligent transportation systems (ITS) [[3]-[6]], location-based mobile commerce [[7]], location-based emergency services [[8]], and location-based event recommendation [[9]]) have been designed and implemented based on advanced positioning techniques and mobile/cellular communication techniques. For obtaining the LBS applications, mobile devices (MDs) and LBS servers are designed in the architecture of LBS. The LBS applications in ITS, indoor/outdoor navigation systems, LBS for industry applications, LBS for education applications, LBS for art applications, and LBS for sport applications have also been mentioned. The LBS servers can receive and analyze the location information of MDs which can be estimated by advanced positioning techniques (e.g., satellite positioning, and mobile positioning) for providing LBS applications. [Extracted from the article]