Study of advanced in-space propulsion technologies by Tan, De Jun

“…As much as we like to explore our universe to find other habitable planets and learn more about it in general, the lack of reliable advanced in-space propulsion technologies which can provide the necessary velocities makes it difficult to achieve. …”
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Learning stock market dynamics using the kinetic ising model by Nguyen, Ai Linh

“…We fitted the stock returns of 30 Dow Jones companies in 2014 from Yahoo finance, and also to 16 artificial data sets generated using the kinetic Ising model resulting in 32 final average weights matrices, to understand the limitations of using the fitted model to do predictions. We find that when we perform static forecasting, i.e. one-step ahead only, the prediction accuracy can as high as 77.60% for a Dow Jones stock and 98.49% for an artificial data.…”
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Analysis and systematic verifications of a low-IF RF receiver targeting GNSS applications by Pramoda, Damle

“…Positioning methods built on the basis of Global Navigation Satellite System (GNSS) like GPS, GLONASS, Beidou and Galileo system find popular applications in tracking systems, automobile and air navigation, surveying, mapping and geographic information systems, archaeology, and pedestrian navigation systems (PNSs). …”
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Writing news features by Masterton, Murray.

“…It shouldn't be a surprise to find that most reporters like most to report. They thrive on the pressure of gathering and writing the elements of a report to a tight deadline. …”
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The effect of China's weak institutional environment on the quality of Big 4 audits by Ke, Bin, Lennox, Clive S., Xin, Qingquan

“…This study examines whether China's weak institutional environment results in lower-quality audits by the Big 4 firms. We find that the Big 4 assign their less experienced partners to companies that are listed only in China compared with clients cross-listed in Hong Kong. …”
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Exogenous shocks and exchange rate regimes by Chia, Wai-Mun, Cheng, Tianyin, Li, Mengling

“…From both the theoretical model and empirical evidence, we find that (i) output responses to terms-of-trade and foreign interest rate shocks are smoother in floats, (ii) price responses to terms-of-trade shocks are smoother in floats than in pegs, while its responses to foreign interest shocks are more volatile in floats than in pegs, and (iii) the effects of terms-of-trade and foreign interest shocks are more prolonged under floats.…”
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Poly(methyl methacrylate) for active disassembly by Purnawali, Hendra, Ding, Zheng, Huang, Wei Min, Wang, Chang Chun, Xu, W. W., Zhao, Y., Fan, H.

“…PMMA was first characterized by a series of thermo-mechanical tests to find the suitable programming temperatures and its shape memory characteristics. …”
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A comprehensive survey of fake review detection technology by Quyyam, Tayybaha, Qicheng, Yu

“…The survey also offers future research directions and an easy way to find datasets, carry out pre-processing, and extract multiple features. …”
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Unique composition and evolutionary histories of large low velocity provinces by Panton, J, Davies, JH, Koelemeijer, P, Myhill, R, Ritsema, J

“…Using simulations of 3-D global mantle circulation over the past 1 Gyr, we find that two antipodal LLVPs develop naturally as a consequence of Earth’s recent subduction history and the gravitational settling and stirring of SOC. …”

Harry Potter and the SPELL against bullying by McKeown Jones, S

“…Please refer to the Supplementary Material section to find this article's Community and Social Impact Statement.…”

Competing pairing interactions responsible for the large upper critical field in a stoichiometric iron-based superconductor CaKFe4As4 by Bristow, M, Knafo, W, Reiss, P, Meier, W, Canfield, PC, Blundell, SJ, Coldea, AI

“…The upper critical fields are extremely large, reaching values close to ∼3 Tc at the lowest temperature, and the anisotropy decreases dramatically with temperature, leading to essentially isotropic superconductivity at 4.2K. We find that the temperature dependence of the upper critical field can be well described by a two-band model in the clean limit with band-coupling parameters favoring intraband over interband interactions. …”

Bank resolution mechanisms revisited: towards a new era of restructuring by Hryckiewicz, A, Kryg, N, Tsomocos, DP

“…We use a unique granular bank-level dataset from 22 advanced economies covering the 1992–2017 period. We find that bank recapitalization without debt resolution measures does not resolve bank distress. …”

Continent-wide drivers of spatial synchrony in breeding demographic structure across wild great tit populations by Woodman, JP, Vriend, SJG, Adriaensen, F, Cole, E, Evans, Park, JS, Firth, JA, Sheldon, B

“…Despite covariation with demographic structure, we do not find evidence for environmental variables influencing the scale of synchrony, except for beech masting. …”

Interns or workers? China's student labor regime by Chan, J, Pun, N, Selden, M

“…Based on fieldwork in Sichuan and Guangdong between 2011 and 2012 and follow-up interviews in 2014, as well as analysis of the Henan government's policies on internships, we find that the student labor regime has become integral to the capital-state relationship as a means to assure a lower cost and flexible labor supply for Foxconn and others. …”

One-dimensional sectors from the squashed three-sphere by Bomans, P, Pufu, SS

“…For gauge theories with matter hypermultiplets, we use supersymmetric localization to derive an explicit description of the topological sector associated with the Higgs branch. Furthermore, we find that the dependence of the 1d correlation functions on the squashing parameter b can be removed after appropriate rescalings. …”

Evidence of rapid hydrogen chloride uptake on water ice in the atmosphere of Mars by Luginin, M, Trokhimovskiy, A, Taysum, B, Fedorova, AA, Korablev, O, Olsen, KS, Montmessin, F, Lefèvre, F

“…In this work, we use simultaneous measurements of water ice and HCl obtained by the ACS instrument to find particular structures in the vertical profiles as detached gas layers at ice-free altitudes (“ice-holes”). …”

Encephalization is not a universal macroevolutionary phenomenon in mammals but is associated with sociality by Shultz, S, Dunbar, R

“…We show that there is wide variation across groups in encephalization slopes across groups and that encephalization is not universal in mammals. We also find that temporal changes in brain size are not associated with allometric relationships between brain and body size. …”

AI-assisted discovery of quantitative and formal models in social science by Balla, J, Huang, S, Dugan, O, Dangovski, R, Soljačić, M

“…By extending neuro-symbolic methods to find compact functions and differential equations in noisy and longitudinal data, we show that our system can be used to discover interpretable models from real-world data in economics and sociology. …”

Tower companies vs. mergers in mobile networks by Koutroumpis, P, Masselos, K

“…We provide policy and market recommendations based on these findings.…”

Climate change mitigation policies for developing countries by Caucheteux, J, Fankhauser, S, Srivastav, S

“…Here, we synthesize what is known about emissions reduction policies in LMICs. We find a strong emphasis on finance interventions and regulatory measures, including the need for power sector reform. …”