Results 51 to 60 of about 1,483,043 (251)
Este artigo analisa como a regulação do Serviço Móvel Pessoal (SMP), implementada pela Anatel em 2001, alterou a estrutura do mercado e as estratégias das operadoras do setor de telefonia móvel no Brasil, entre 2002 e 2007.
Rogério H. Quintella +1 more
doaj +1 more source
ABSTRACT Drawing upon ecological modernization theory as the analytical framework, this study employs macro‐level longitudinal tracking data covering China's major regions as research samples. It measures the green and low‐carbon development (GLCD) of manufacturing from the four dimensions—“carbon reduction, pollution mitigation, ecological expansion ...
Deng Wang +4 more
wiley +1 more source
ABSTRACT This study demonstrates how a profitable, lean, and environmentally responsible e‐waste reverse logistics system can be designed using integrated Operations Research (OR) techniques. Addressing the growing urgency of responsible consumption (UN SDG 12) and the projected rise of the e‐waste sector to USD 137.60 billion by 2029, the research ...
Sheeba Pathak, Hajar Fatorachian
wiley +1 more source
ABSTRACT This study examines how geopolitical risk, high‐technology exports and the Paris Agreement shape investment in renewable energy across developed and developing economies. Drawing on structural contingency theory, we conceptualise renewable energy investment as a country‐level response to external contingencies and analyse a global panel of 100
Tianqi Luo +5 more
wiley +1 more source
Characteristics of Spanish adolescents’ and youngsters’ civic activity: e- citizenship [PDF]
In this study we aim to illustrate and provide data on the access, use, equipment, habits and motivations of Spanish adolescents and young people towards ICT (computers, networks, internet, mobile phones...).
Juan Antonio Fuentes Esparrell
doaj
Diffusion of Digital Mobile Telephony: Are Developing Countries Different? [PDF]
mobile telephony, technology diffusion, Gompertz model, developing ...
Rouvinen, Petri
core
Why Some Firms Perceive Climate Risks and Others Do Not—Evidence From the Logistics Sector
ABSTRACT This study explores how companies perceive risks stemming from climate change as a gradual process, focusing on the logistics sector. It advances research on organizational climate risk perception by integrating perspectives on embeddedness and resource configurations. Based on 41 semi‐structured interviews with representatives of 22 logistics
Felix Bücken, Martin Franz
wiley +1 more source
Elevator dynamic monitoring and early warning system based on machine learning algorithm
In order to monitor and warn the elevator dynamics, in this work, the machine learning algorithm is introduced, and the particle swarm algorithm is used to perfect the model. The model is optimised, and the experimental comparison shows that the optimisation of the model parameters can further improve the accuracy of the elevator load prediction. Then,
Shuai Zhang, Qiangguo Yin, Jinlong Wang
wiley +1 more source
Contribution de la diaspora et développement des TIC au Congo
A number of African countries have set about the process of emergence with the construction of infrastructures and the implementation of projects in several fields.
Theodora Miere
doaj +1 more source
Entry, Costs Reduction, and Competition in the Portuguese Mobile Telephony Industry [PDF]
We study the effect of entry on costs and competition in the Portuguese mobile telephony industry.\ We construct and estimate a model that includes demand, network, and cost equations. The latter accounts for inefficiency and cost reducing effort.
Philippe Gagnepain, Pedro Pereira
core

