Article
Chemistry, Analytical
Peng Chen, Yiwei Li, Bi-Feng Liu, Shunji Li, Chao Wan, Bangfeng Wang, Dongjuan Chen, Wenyi Zeng, Xianzhe Hong, Lina Li, Zheng Pang, Wei Du, Xiaojun Feng
Summary: Low-cost, portable, and robust handyfuge-AST was developed as an electricity-free microfluidic chip for on-site antibiotic susceptibility testing (AST). It enables the generation of accurate antibiotic concentration gradients within minutes and provides accurate MIC values for antibiotics against Escherichia coli in a short time. With the upgraded pH-based colorimetric strategy, handyfuge-AST allows easy recognition and can be used as a point-of-care device, achieving 100% categorical agreements with clinical standard methods.
ANALYTICAL CHEMISTRY
(2023)
Article
Engineering, Electrical & Electronic
Praise O. Farayola, Shravan K. Chaganti, Abdullah O. Obaidi, Abalhassan Sheikh, Srivaths Ravi, Degang Chen
Summary: The rising analog content in mixed-signal integrated circuits is driving an increased need for measurement of analog parametric specifications during manufacturing test. Multisite measurement can improve efficiency, but variations in site to site behavior may lead to degraded test results.
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2021)
Article
Astronomy & Astrophysics
Jing Xu, MingShuai Li, Ali Esamdin, Na Wang, Guangxin Pu, Letian Wang, Guojie Feng, Xuan Zhang, Shuguo Ma, Jinquan Lv, Xingwu Zheng
Summary: This article presents the results of studying the temporal variability of precipitable water vapor (PWV) at the Muztagh-ata site. The driest seasons at this site are from October to March, with annual median values of 2.28 mm and 2.37 mm in 2018 and 2019 respectively. The study confirms the potential of the Muztagh-ata site for infrared observations.
PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC
(2022)
Correction
Chemistry, Multidisciplinary
C. G. Na, E. J. Alexanian
Summary: The synthesis and bioactivity of guanidinium-functionalized pillar[5]arene are reported in this Communication by Ruibing Wang et al.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Astronomy & Astrophysics
Ashutosh Tripathi, Yuexin Zhang, Askar B. Abdikamalov, Dimitry Ayzenberg, Cosimo Bambi, Jiachen Jiang, Honghui Liu, Menglei Zhou
Summary: The study employed advanced techniques to analyze a selection of spectra from Galactic black holes, obtaining the most stringent and precise constraints on the Kerr black hole hypothesis compared to other methods.
ASTROPHYSICAL JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
Ruijia Huang, Xiaoqing Cai, Jihui Du, Jie Lian, Ping Hui, Minxuan Gu, Feng Li, Jidong Wang, Wenwen Chen
Summary: Delayed use of appropriate antibiotics for super bugs, especially ESBL-producing E.coli and K. pn, has caused significant morbidity and mortality globally. There is an urgent need for rapid on-site antimicrobial susceptibility testing (AST). Inspired by the rapid catalysis of H2O2 by E.coli and K.pn, we developed a plasmonic nanosensor for quick AST. The results can be easily determined with the naked eye or digitized with a smartphone and validated using ultraviolet-visible spectrometry. Our assay achieved high accuracy directly from clinical urine samples infected by E.coli and K.pn, with a short analysis time.
Article
Thermodynamics
Ruta Vanaga, Janis Narbuts, Zigmars Zundans, Andra Blumberga
Summary: Decarbonisation goals for buildings require innovative solutions on both the supply and demand sides. Thermal envelopes with built-in energy storage can harness on-site solar energy and reduce cooling or heating loads. This paper presents results from on-site testing of a dynamic facade system with solar energy storage. The proposed solar facade consists of phase change material, aerogel, Fresnel lens, and moving reflective blades to enhance heat transfer. Comparative study shows that the solar facade module has lower energy demand for cooling compared to a high-performance triple glazed window, performs similarly in mid-season, but is outperformed by the window in the heating season.
Article
Energy & Fuels
Chu Sun, Syed Qaseem Ali, Geza Joos, Jean -Nicolas Paquin, Juan Felipe Patarroyo Montenegro
Summary: A general rule-based microgrid controller is proposed in this article to adapt to different microgrid compositions and operating modes. The controller uses basic dispatch rules to balance total power, track grid power import/export reference, mitigate renewable generation fluctuations, and reduce energy storage losses. Mathematical formulations and graphical solutions are used to design the rules, which are then combined to form generalized dispatch strategies capable of operating in different scenarios. Four types of dispatch strategies and their variants in terms of dispatchable generator control are introduced, along with recommendations for different microgrid configurations and adaptivity to microgrid composition variations.
Article
Astronomy & Astrophysics
Yingjie Li, Ye Xu, JingJing Li, Yuanwei Wu, Shaibo Bian, ZeHao Lin, WenJin Yang, Chaojie Hao, DeJian Liu
Summary: This study measured the relative positions between two pairs of compact extragalactic sources and predicted their dynamical ranges. The measured standard deviations of the relative positions indicate a high accuracy of the post-Newtonian relativistic parameter. The measured value of gamma is comparable to the latest published results for Jupiter as a gravitational lens.
ASTROPHYSICAL JOURNAL
(2022)
Article
Health Care Sciences & Services
Xiaozhou He, Li Luo, Xuefeng Tang, Qingyi Wang
Summary: This study aims to optimize large-scale nucleic acid testing by proposing a dynamic testing site deployment strategy. A multi-period location-allocation model is developed, taking into account the spatial-temporal distribution of the testing population and the availability of testing resources over time. A real-world case study in Chenghua district, Chengdu, China, validates the effectiveness and benefits of the proposed model, which can reduce testing costs and improve robustness in resource-limited scenarios.
Article
Chemistry, Analytical
Furong Zhao, Pei Wang, Haoxuan Wang, Sirui Liu, Muhammad Sohail, Xing Zhang, Bingzhi Li, He Huang
Summary: The spread of monkeypox virus (MPXV) from Central and West Africa to other regions has caused global alarm. A new assay combining recombinase-aided amplification (RAA) and CRISPR/Cas12a technology has been proposed, showing low detection limits and high selectivity for MPXV. A kit with lateral flow strips was developed for on-site screening, enabling easy and rapid MPXV detection without advanced equipment. This assay has the potential to be used for on-site surveillance of MPXV in emerging viral outbreaks.
ANALYTICAL METHODS
(2023)
Article
Multidisciplinary Sciences
Iunio Iervolino, Eugenio Chioccarelli, Pasquale Cito
Summary: Probabilistic seismic hazard analysis (PSHA) is widely used to quantify the uncertainty associated with earthquake occurrence and effects. Different hazard maps for the same region can show apparently irreconcilable differences, sparking public debate. A study evaluated three different PSHA studies for Italy and found that, in fact, the alternative hazard maps are hardly distinguishable in light of observations.
Article
Astronomy & Astrophysics
Francesco Zagaria, Stefano Facchini, Anna Miotello, Carlo F. F. Manara, Claudia Toci, Cathie J. J. Clarke
Summary: The Atacama Large Millimeter/submillimeter Array (ALMA) has not yet provided definitive answers on the disc evolution mechanisms. An alternative method based on (CO)-C-12 fluxes has been introduced to study disc evolution, which can be easily collected using lower resolution observations. The new method has been tested and compared with data, showing good agreement when considering CO depletion.
ASTRONOMY & ASTROPHYSICS
(2023)
Article
Green & Sustainable Science & Technology
Anosh Nadeem Butt, Branka Dimitrijevic
Summary: Complex societal problems require transdisciplinary research, but there is currently a lack of focused communication platforms and shared research frameworks. This study identified three main themes and developed a general framework for conducting transdisciplinary research. The findings highlighted the importance of improved communication between academia and industry in addressing complex societal problems such as sustainable development and environmental crises.
Article
Multidisciplinary Sciences
Christopher J. Moore, Eliot Finch, Riccardo Buscicchio, Davide Gerosa
Summary: Gravitational wave observations of binary black holes offer a new testing ground for general relativity, with caution needed for waveform errors and their potential accumulation between events. The study highlights the importance of accurate waveform models and the need for caution in interpreting large gravitational wave catalogs to avoid erroneous evidence for new physics.
Article
Astronomy & Astrophysics
A. Roth, B. Drummond, E. Hebrard, P. Tremblin, J. Goyal, N. Mayne
Summary: This study investigates the impact of thermal dissociation and recombination of molecular hydrogen on heat redistribution in the atmospheres of ultra-hot Jupiters. The findings reveal significant temperature changes and shifting of hotspot regions in the atmosphere, especially when considering additional opacity sources like TiO and VO. Moreover, variations in wind speed are shown to influence the reaction heat redistribution, with important implications for atmospheric dynamics.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2021)
Article
Multidisciplinary Sciences
Matteo Luisi, Loren D. Anderson, Nicola Schneider, Robert Simon, Slawa Kabanovic, Rolf Gusten, Annie Zavagno, Patrick S. Broos, Christof Buchbender, Cristian Guevara, Karl Jacobs, Matthias Justen, Bernd Klein, Dylan Linville, Markus Rollig, Delphine Russeil, Jurgen Stutzki, Maitraiyee Tiwari, Leisa K. Townsley, Alexander G. G. M. Tielens
Summary: Radiative and mechanical feedback from massive stars play a crucial role in regulating star formation and galaxy evolution. The observed gas shell and ring structure of molecular gas suggest that positive feedback can trigger star formation on shorter timescales than previously thought.
Article
Astronomy & Astrophysics
P. Tremblin, G. Chabrier, T. Padioleau, S. Daley-Yates
Summary: Inspired by statistical mechanics and fluid mechanics, this study proposes a method to account for small-scale inhomogeneities in self-gravitating astrophysical fluids. By deriving nonideal virial theorem and nonideal Navier-Stokes equations, the study explains the nonideal amplification of gravitational energy and its impact on the dynamics of galaxies and the large-scale Universe. The results demonstrate the importance of considering nonideal effects induced by inhomogeneities.
ASTRONOMY & ASTROPHYSICS
(2022)
Article
Astronomy & Astrophysics
S. Kabanovic, N. Schneider, V Ossenkopf-Okada, F. Falasca, R. Guesten, J. Stutzki, R. Simon, C. Buchbender, L. Anderson, L. Bonne, C. Guevara, R. Higgins, B. Koribalski, M. Luisi, M. Mertens, Y. Okada, M. Roellig, D. Seifried, M. Tiwari, F. Wyrowski, A. Zavagno, A. G. G. M. Tielens
Summary: This study investigates the 3D dynamics of H-II region bubbles, their associated molecular clouds, and H-I envelopes. The CO emission primarily comes from a limb-brightened, warm molecular ring, and the H-II region is associated with a flattened molecular cloud. The [C-II] emission originates from an expanding [C-II] bubble and photo-dissociation regions. A significant portion of [C-II] emission is absorbed by a cool, low-density atomic foreground layer. The study suggests that the RCW 120 H-II region formed in a flattened molecular cloud and is bursting out of its parental cloud.
ASTRONOMY & ASTROPHYSICS
(2022)
Correction
Astronomy & Astrophysics
S. Kabanovic, N. Schneider, V. Ossenkopf-Okada, F. Falasca, R. Gusten, J. Stutzki, R. Simon, C. Buchbender, L. Anderson, L. Bonne, C. Guevara, R. Higgins, B. Koribalski, M. Luisi, M. Mertens, Y. Okada, M. Rollig, D. Seifried, M. Tiwari, F. Wyrowski, A. Zavagno, A. G. G. M. Tielens
ASTRONOMY & ASTROPHYSICS
(2022)
Article
Astronomy & Astrophysics
N. Schneider, V Ossenkopf-Okada, S. Clarke, R. S. Klessen, S. Kabanovic, T. Veltchev, S. Bontemps, S. Dib, T. Csengeri, C. Federrath, J. Di Francesco, F. Motte, Ph Andre, D. Arzoumanian, J. R. Beattie, L. Bonne, P. Didelon, D. Elia, V Konyves, A. Kritsuk, B. Ladjelate, Ph Myers, S. Pezzuto, J. F. Robitaille, A. Roy, D. Seifried, R. Simon, J. Soler, D. Ward-Thompson
Summary: The probability distribution functions of total hydrogen column density (N-PDFs) are useful for understanding the structure of the interstellar medium. The N-PDFs show different characteristics at low and high column densities, with a transition from a double-log-normal distribution to one or two power law tails. The different cloud types exhibit distinct features, possibly related to turbulence, gravity, radiative feedback, and magnetic fields.
ASTRONOMY & ASTROPHYSICS
(2022)
Article
Astronomy & Astrophysics
L. Bonne, N. Schneider, P. Garcia, A. Bij, P. Broos, L. Fissel, R. Guesten, J. Jackson, R. Simon, L. Townsley, A. Zavagno, R. Aladro, C. Buchbender, C. Guevara, R. Higgins, A. M. Jacob, S. Kabanovic, R. Karim, A. Soam, J. Stutzki, M. Tiwari, F. Wyrowski, A. G. G. M. Tielens
Summary: This study presents observations of the bipolar H ii region RCW 36 in the Vela C molecular cloud, revealing the expansion and turbulence driven by stellar feedback. The X-ray observations show diffuse emission that traces a hot plasma, and high-velocity wings in [C ii] indicate relatively high mass ejection rates. These findings highlight the significant role of stellar feedback in suppressing star formation efficiency.
ASTROPHYSICAL JOURNAL
(2022)
Article
Astronomy & Astrophysics
Hideaki Takemura, Fumitaka Nakamura, Hector G. Arce, Nicola Schneider, Volker Ossenkopf-Okada, Shuo Kong, Shun Ishii, Kazuhito Dobashi, Tomomi Shimoikura, Patricio Sanhueza, Takashi Tsukagoshi, Paolo Padoan, Ralf S. Klessen, Paul. F. Goldsmith, Blakesley Burkhart, Dariusz C. Lis, Alvaro Sanchez-Monge, Yoshito Shimajiri, Ryohei Kawabe
Summary: The distribution of dense cores is crucial for understanding star formation. Using dendrogram analysis on CO data, a total of 2342 dense cores were identified, 22% of which were classified as gravitationally bound. The mass function of these bound cores showed similarities with the initial mass function, with a peak at around 0.1 solar masses. The cores were divided into different regions, and it was found that cores with masses greater than 10 solar masses were only found in certain regions. The estimated lifetime of these cores was consistent with previous studies. Additionally, core growth by mass accretion was discussed to explain the similarity between the initial mass function and the core mass function.
ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
(2023)
Article
Astronomy & Astrophysics
Maria Zamyatina, Eric Hebrard, Benjamin Drummond, Nathan J. Mayne, James Manners, Duncan A. Christie, Pascal Tremblin, David K. Sing, Krisztian Kohary
Summary: This study presents three-dimensional simulations of the atmospheres of several gas giant exoplanets, showing that transport-induced quenching is likely to occur in all of the planets' atmospheres. However, the impact on their synthetic spectra and phase curves varies from planet to planet, indicating the importance of the interplay between dynamics and chemistry.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2022)
Article
Astronomy & Astrophysics
S. D. Clarke, A. Sanchez-Monge, G. M. Williams, A. D. P. Howard, S. Walch, N. Schneider
Summary: We present an analysis of the outer Galaxy giant molecular filament G214.5-1.8 using Herschel data. The study reveals the unique morphology of G214.5, with a predominance of star formation activity in the Main filament. It resembles a 'Bone' candidate GMF but exhibits colder temperatures, narrower structure, and lower density gas. Its highly asymmetric profile suggests external compression. Co-incidentally, G214.5 is found to be spatially and kinematically associated with an H i superbubble, suggesting a potential interaction explaining its morphology, asymmetry, and paucity of dense gas and star formation activity.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2022)
Article
Astronomy & Astrophysics
K. L. Luhman, P. Tremblin, S. M. Birkmann, E. Manjavacas, J. Valenti, C. Alves de Oliveira, T. L. Beck, G. Giardino, N. Lutzgendorf, B. J. Rauscher, M. Sirianni
Summary: We used NIRSpec on board the James Webb Space Telescope to perform 1-5 μm spectroscopy of the young planetary mass companion TWA 27B (2M1207B). The absence of the CH4 fundamental band and the weak CO fundamental band support the previously observed trend of weaker CH4 with younger ages among L dwarfs, which is attributed to enhanced nonequilibrium chemistry among young objects. The weakness of CO may be due to additional atmospheric properties that vary with age. Our findings suggest the inclusion of clouds in models may resolve these issues.
ASTROPHYSICAL JOURNAL LETTERS
(2023)
Article
Astronomy & Astrophysics
Felix Sainsbury-Martinez, Pascal Tremblin, Aaron David Schneider, Ludmila Carone, Isabelle Baraffe, Gilles Chabrier, Christiane Helling, Leen Decin, Uffe Grae Jorgensen
Summary: Additional analysis of WASP-76b and related models reveals significant vertical enthalpy transport, causing radius inflation and explaining the discrepancy between observed hot Jupiters and standard models. This highlights the importance of considering the vertical advection of potential temperature in explaining the radius inflation of exoplanets.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2023)
Article
Astronomy & Astrophysics
Nicola Schneider, Lars Bonne, Sylvain Bontemps, Slawa Kabanovic, Robert Simon, Volker Ossenkopf-Okada, Christof Buchbender, Juergen Stutzki, Marc Mertens, Oliver Ricken, Timea Csengeri, Alexander G. G. M. Tielens
Summary: Mapping the 158 mu m line of ionized carbon within the Cygnus region with the SOFIA observatory provides evidence for dynamic interactions between molecular clouds and their atomic envelopes, which trace out the assembly process of cloud complexes. The detailed mechanisms of how molecular clouds assemble from and interact with atomic gas are still largely unknown.
Article
Astronomy & Astrophysics
Aaron M. Meisner, S. K. Leggett, Sarah E. Logsdon, Adam C. Schneider, Pascal Tremblin, Mark Phillips
Summary: Mapping the populations of thick disk and halo brown dwarfs is crucial for understanding the metallicity dependence of low-temperature atmospheres and substellar mass function. A new population of cold and metal-poor brown dwarfs, including extreme T-type subdwarfs and a possible first Y-type subdwarf, has been discovered. Photometric detections and model comparisons suggest a subsolar metallicity and temperature of 400-550 K for the highly anomalous object WISEA J153429.75-104303.3. Spectroscopic follow-up with JWST at near-infrared and mid-infrared wavelengths would provide further insights into its spectral peculiarities and confirm its classification as a Y-type subdwarf.
ASTRONOMICAL JOURNAL
(2023)
Article
Astronomy & Astrophysics
S. K. Leggett, Pascal Tremblin
Summary: The James Webb Space Telescope is observing the coldest known brown dwarfs, Y dwarfs, and the first published observations reveal the out-of-equilibrium atmospheric chemistry and non-standard pressure-temperature profiles of these objects. The rapid rotation of Y dwarfs, along with thermal and compositional changes, disrupts convection and leads to temperature differences in the lower and upper atmosphere. Empirical models adjusted for these effects fit the observed spectra better than standard models. It was also found that the recently discovered Y dwarf has a temperature within the significant luminosity gap between other Y dwarfs. The adjusted models are recommended for analyzing brown dwarfs cooler than 600K.
ASTROPHYSICAL JOURNAL
(2023)