Electric Field‐Induced Hole‐ and Electron‐Type Flat Bands in Twisted Double Bilayer Graphene
The electronic structure of twisted double bilayer graphene is visualized using angle‐resolved photoemission spectroscopy with micrometer spatial resolution at twists of 3.1∘$^\circ$ and 6.0∘$^\circ$ as a function of gate voltage. Tunable hybridization effects and flat band formation occurs between valence and conduction band states due to a finite ...
Zhihao Jiang +13 more
wiley +1 more source
Metric and topo-geometric properties of urban street networks: some convergences, divergences and new results [PDF]
The theory of cities, which has grown out of the use of space syntax techniques in urban studies, proposes a curious mathematical duality: that urban space is locally metric but globally topo-geometric.
Hillier, B. +3 more
core
Impact of urban structure on infectious disease spreading. [PDF]
Aguilar J +10 more
europepmc +1 more source
Beyond the Ban—Shedding Light on Smallholders' Price Vulnerability in Indonesia's Palm Oil Industry
ABSTRACT The Indonesian government imposed a palm oil export ban in April 2022 to address rising cooking oil prices. This study explores oil palm smallholders' vulnerability to the policy using descriptive statistics, Lasso, and post‐Lasso OLS regressions.
Charlotte‐Elena Reich +3 more
wiley +1 more source
Livestock Tango: U.S. and Latin America Dance Together, but Who Will Lead?
ABSTRACT This study examines the competitiveness between Latin American and U.S. livestock and meat sectors. We employ a computable general equilibrium modeling framework to evaluate two scenarios: coordinated improvements in Latin American productivity, transport efficiency, and market access (Scenario I), and the minimum productivity gains required ...
Taís C. Menezes +2 more
wiley +1 more source
Urban spatial structure and economic growth in Spanish metropolitan areas [PDF]
There is a large literature on the existence of agglomeration economies, as shown in the surveys by Moomaw (1983) or Gerking (1993). The benefits of these economies arise from multiple sources, but some negative externalities might also emerge.
Ana M Fuertes-Eugenio +3 more
core
Markets Mitigate Land‐Use Competition From Energy Crops and Increase Farm Revenues
ABSTRACT Meeting the US Sustainable Aviation Fuel Grand Challenge target of 35 billion gal annually by 2050 will require an estimated 380 million–700 million dry tons of agricultural biomass feedstock. This study evaluates the implications of large‐scale biomass production for land use, crop production, and market outcomes under mature market ...
Daniel G. De La Torre Ugarte +2 more
wiley +1 more source
ABSTRACT Estimates of reductions in greenhouse gas (GHG) emissions from lower demand for cattle‐based products must account for substitution effects. This study collected data through two surveys—one on ground beef and another on dairy milk—to evaluate substitution effects and potential GHG reductions.
Brandon R. McFadden +5 more
wiley +1 more source
An urban general equilibrium model with multiple household structures and travel mode choice [PDF]
Households in real cities are heterogeneous regarding their size and composition. An aspect usually neglected in urban models used to study economic and policy issues that arise in today's cities.
Hirte, Georg, Tscharaktschiew, Stefan
core +1 more source
People's perceptions and classifications of sounds heard in urban parks : semantics, affect and restoration [PDF]
Sounds have been broadly categorized by researchers into ‘human’, ‘nature’ and ‘mechanical’. It is less clear if the general public define and classify sounds in the same way and which factors influence their classification process. Establishing people’
Devine-Wright, Patrick +2 more
core

