Results 81 to 90 of about 4,967 (249)

Bipartite Ramsey numbers involving stars, stripes and trees

Electronic Journal of Graph Theory and Applications, 2013
The Ramsey number R(m, n) is the smallest integer p such that any blue-red colouring of the edges of the complete graph Kp forces the appearance of a blue Km or a red Kn.
Michalis Christou, Costas Iliopoulos, Mirka Miller   +2 more
doaj   +1 more source

Tracking SDG‐7 in China, India, and Japan

Sustainable Development, EarlyView.
ABSTRACT This study examines the impact of clean energy consumption on environmental quality, supporting the UN Sustainable Development Goal (SDG) 7, which aims to ensure access to clean, affordable energy for all. The Auto‐Regressive Distributed Lag (ARDL) model is used for Japan, and the Fourier ARDL for China and India, followed by a Granger ...
Arvind Goswami, Rajesh Kumar Jangir, Harmanpreet Singh Kapoor, Vijay Kumar Chattu   +3 more
wiley   +1 more source

Around a conjecture of Erdos in graph Ramsey theory

پژوهش‌های ریاضی, 2021
For given graphs G1 and G2 the Ramsey number R(G1;G2), is the smallest positive integer n such that each blue-red edge coloring of the complete graph Kn contains a blue copy of G1 or a red copy of G2. In 1983, Erd}os conjectured that there is an absolute
Leila Maherani, Gholamreza Omidi
doaj  

Revisiting the Growth–Forest Sustainability Nexus in India: The Role of Human Capital, Energy, and Trade

Sustainable Development, EarlyView.
ABSTRACT Understanding whether the interaction between economic activity and forest ecosystems manifests as conflict or synergy is central to designing effective, sustainable development policies. Although the environmental Kuznets curve framework is frequently utilized to explain this relationship, its analytical scope remains limited, as it ...
Umut Uzar, Kemal Eyuboglu
wiley   +1 more source

Governing Water Sustainability Through SDG Interlinkages: Novel Evidence on Climate Vulnerability, Health, Environmental Policy, and Clean Innovation in OECD Countries

Sustainable Development, EarlyView.
ABSTRACT Water sustainability has become a critical challenge within the sustainable development agenda, particularly under increasing climate risks and resource pressures. Despite its central role in Sustainable Development Goal 6 (SDG 6), existing studies largely adopt fragmented and linear approaches, overlooking the interconnected and nonlinear ...
Busra Agan Celik
wiley   +1 more source

Do Globalization and Clean Energy Transitions Advance Sustainable Development? Evidence on CO2 Emissions From Costa Rica

Safety Science and Technology, EarlyView.
Using annual data for Costa Rica from 1980 to 2023, this study investigates the long‐run effects of globalization, foreign direct investment (FDI), access to clean fuels and technologies for cooking, renewable energy consumption, and economic growth on CO2 emissions by employing DOLS, FMOLS, and CCR estimators.
Mahmud Hasan Riaz
wiley   +1 more source

Monochromatic sums and products

Discrete Analysis, 2016
Monochromatic sums and products, Discrete Analysis 2016:5, 48pp. An old and still unsolved problem in Ramsey theory asks whether if the positive integers are coloured with finitely many colours, then there are positive integers $x$ and $y$ such that $x,
Ben Green, Tom Sanders
doaj   +1 more source

Insights from the Presidential Addresses to the Agricultural Economics Society

Journal of Agricultural Economics, EarlyView.
ABSTRACT The Society's published presidential addresses have embraced a wide range of subject matter, reflecting a ‘road well travelled’ in agricultural economics. The areas covered include the development and use of data and statistics, lessons from history, sectoral analysis, land economics, international trade and international development.
David Blandford
wiley   +1 more source

Market Integration and Nonlinear Price Transmission in 19th‐Century British Wheat Markets

Journal of Agricultural Economics, EarlyView.
ABSTRACT Important developments in infrastructure and institutions characterized 19th‐Century wheat markets in Great Britain. Among these developments was the construction of the national rail system which enabled cheaper and more efficient transport of grain and other bulky cargoes between inland towns and ports.
Barry K. Goodwin, A. Ford Ramsey
wiley   +1 more source

The Great Cosmic Silence: What Does the Fermi Paradox Tell About the Future of Humanity?

Global Policy, EarlyView.
ABSTRACT This article examines how institutional time horizons shape the long‐term survival prospects of human technological civilisation. While research on global catastrophic and existential risks has expanded, the temporal structures of political‐economic institutions remain underexamined.
Heikki Patomäki
wiley   +1 more source