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Measuring trade costs and analyzing the determinants of trade growth between Cambodia and major trading partners: 1993-2019.
PLoS One
January 2025
School of Economics and Trade, Hunan University, Changsha, China.
High trade costs pose substantial barriers to the process of trade liberalization. This study aims to measure trade costs and explore the driving forces behind the growth of bilateral trade between Cambodia and its top 30 trading partners from 1993 to 2019. Using a micro-founded measure of trade costs derived from the gravity model, we find that Cambodia's average trade costs decreased by 35.
View Article and Find Full Text PDFKey barriers and decision supports in revitalizing heritage buildings from investors' perspective in China: A case study in Guangzhou, China.
PLoS One
January 2025
School of Architectural Engineering, Shenzhen Polytechnic University, Shenzhen, China.
In the decision-making process for investing in heritage buildings (HBs), various factors such as costs, interests, and tenancy terms influence investors decisions. Understanding the motivations of these investors can facilitate the involvement of social forces with diverse interests in adaptive reuse projects. This paper examines the primary barriers to revitalizing heritage buildings through adaptive reuse decision-making.
View Article and Find Full Text PDFAn analytical model of label-free nanoscale chemical imaging reveals avenues toward improved spatial resolution and sensitivity.
Proc Natl Acad Sci U S A
January 2025
Faculty of Technical Chemistry, Institute of Chemical Technologies and Analytics, Technische Universität Wien, Vienna 1060, Austria.
Atomic force microscopy-infrared spectroscopy (AFM-IR) is a photothermal scanning probe technique that combines nanoscale spatial resolution with the chemical analysis capability of mid-infrared spectroscopy. Using this hybrid technique, chemical identification down to the single molecule level has been demonstrated. However, the mechanism at the heart of AFM-IR, the transduction of local photothermal heating to cantilever deflection, is still not fully understood.
View Article and Find Full Text PDFDental Caries, Erosive Tooth Wear, and Periodontal Status of Military Student Pilots in Finland: A Comparative Cross-Sectional Study.
Mil Med
January 2025
Department of Oral and Maxillofacial Diseases, University of Helsinki, Helsinki, 00014, Finland.
Introduction: Oral health is a crucial factor for service safety among military pilots, but studies specifically on pilots are still very few in Finland. The aim of this study was to assess the oral health status of military student pilots compared to other conscripts of the same age group.
Materials And Methods: The data were collected during the oral health examinations of the annual class of the Pilot Reserve Officer Course students at the beginning of their duty at the Air Force Academy (N = 38).
Some Challenges of Diffused Interfaces in Implicit-Solvent Models.
J Comput Chem
January 2025
Department of Mechanical Engineering, Universidad Técnica Federico Santa María, Valparaíso, Chile.
The standard Poisson-Boltzmann (PB) model for molecular electrostatics assumes a sharp variation of the permittivity and salt concentration along the solute-solvent interface. The discontinuous field parameters are not only difficult numerically, but also are not a realistic physical picture, as it forces the dielectric constant and ionic strength of bulk in the near-solute region. An alternative to alleviate some of these issues is to represent the molecular surface as a diffuse interface, however, this also presents challenges.
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