Article
Metallurgy & Metallurgical Engineering
Zhuo Li, Qiu-hua Rao
Summary: Calibrating micro-parameters is crucial for using the parted flow code (PFC) to study the mechanical characteristics and failure mechanism of rock materials. The uniform design method is employed to determine microscopic parameters for PFC3D, with an analysis of their effects on macroscopic parameters, leading to the establishment of calculation equations and quantitative determination of PFC3D microscopic parameters. The simulated results of intact and pre-cracked rock specimens under different compressions show good agreement with experimental results, verifying the validity of the calculation equations for microscopic and macroscopic parameters.
JOURNAL OF CENTRAL SOUTH UNIVERSITY
(2021)
Article
Chemistry, Multidisciplinary
Flavia E. Galdino, Agustin S. Picco, Larissa B. Capeletti, Jefferson Bettini, Mateus B. Cardoso
Summary: In this study, synchrotron-based small-angle X-ray scattering and transmission electron microscopy techniques were used to track and estimate the formation and binding parameters of the protein corona, while visualizing its unstained hard and soft fractions. This strategy shows great potential for understanding fundamental aspects of the protein corona and can contribute to rational medical nanoparticle engineering.
Article
Materials Science, Multidisciplinary
C. W. Cho, A. Pawbake, N. Aubergier, A. L. Barra, K. Mosina, Z. Sofer, M. E. Zhitomirsky, C. Faugeras, B. A. Piot
Summary: Microwave absorption experiments were conducted on the van der Waals antiferromagnet CrSBr using phase-sensitive external resistive detection. The magnetic-field dependence of two resonance modes was measured in an applied field parallel to the three principal crystallographic directions, revealing anisotropies, magnetic transitions, and strong magnon-magnon coupling in the material. A microscopic spin model was formulated to explain the observed results, taking into account a bi-axial single-ion anisotropy and interplane exchange. Theoretical calculations accurately described the full magnon spectra, enabling the precise determination of microscopic interaction parameters for CrSBr.
Article
Chemistry, Analytical
Wan-Feng Zhang, De-Wen Zheng, Guo-Qing Liu, Yi-Gang Xu, Ying-De Jiang
Summary: In 40Ar/39Ar dating, fast neutron fluence accumulation is a critical parameter for dating, and with technological advancement, the boundary conditions for choosing irradiation conditions have been improved, allowing for considerable analytical accuracy from very low 39Ar signals.
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
(2021)
Article
Materials Science, Multidisciplinary
Peng Chen, Hong Jian Zhao, Sergey Prosandeev, Sergey Artyukhin, Laurent Bellaiche
Summary: The microscopic origin of electric Dzyaloshinskii-Moriya interaction (eDMI) is unveiled and discussed in this study, using analytical analysis and first-principles based calculations. Similar to magnetic Dzyaloshinskii-Moriya interaction (mDMI), eDMI also originates from the electron-mediated effect, specifically from certain electron hoppings due to local inversion-symmetry breaking. However, the energy of eDMI is at least a third-order interaction in atomic displacements, unlike the bilinear magnetic dipole moments of mDMI. This study also presents the energy form of eDMI and identifies novel electrical topological defects that can arise from it, known as chiral electric bobbers.
Article
Astronomy & Astrophysics
Sirina Prasad, Qizhou Zhang, James Moran, Yue Cao, Izaskun Jimenez-Serra, Jesus Martin-Pintado, Antonio Martinez-Henares, Alejandro Baez-Rubio
Summary: MWC 349A is a star with rare hydrogen radio recombination line (RRL) masers. Using ALMA observations, we resolved the H30α and 1.4 mm continuum emission for the first time and found evidence of a high-velocity jet along the polar axis. These masers may originate from a magnetohydrodynamic wind.
ASTROPHYSICAL JOURNAL LETTERS
(2023)
Article
Physics, Fluids & Plasmas
Antony Burrows, Shaun Cooper, Peter Schwerdtfeger
Summary: We provide a general lattice sum formula for the hexagonal close packed (hcp) structure with varying c/a ratios, based on previous works by Lennard-Jones, Ingham, Kane, and Goeppert-Mayer. The lattice sum is expressed using fast converging series of Bessel functions. Our analysis reveals a slight symmetry-breaking effect and the appearance of a second metastable minimum for the (12,6) Lennard-Jones potential around the c/a ratio of 2/3, contrasting the ideal ratio of & RADIC;8/3 in the hard-sphere model. Additionally, we demonstrate that extending the (n, m) Lennard-Jones potential through analytical continuation to n, m < 3, such as the Kratzer potential (n = 2, m = 1), produces unphysical results.
Article
Instruments & Instrumentation
Bibhu Kar, Hamid Basaeri, Shad Roundy, Ulrike Wallrabe
Summary: In this work, a method was proposed to determine the complete reduced matrix of a piezoelectric ultrasonic disc transducer by employing one-dimensional resonance analysis and finite element analysis. The objective was to obtain the material parameters that minimize the error between the measured impedance data and the numerical impedance curve. The procedure was validated using impedance responses of two piezoelectric discs with different diameter-to-thickness ratios, and excellent agreement between numerical and experimental results was observed for electrical impedance curves.
SMART MATERIALS AND STRUCTURES
(2023)
Article
Materials Science, Multidisciplinary
Miguel Royo, Massimiliano Stengel
Summary: We present a first-principles methodology and code implementation to calculate the lattice-mediated contributions to the bulk flexoelectric tensor. By avoiding numerical derivatives and generalizing the sum rules, we validate our results and revisit the definition of the elastic tensor under stress. The successful application of our method to cubic crystals and SrTiO3 demonstrates its performance and consistency with existing literature data.
Article
Chemistry, Physical
Mubarak Al-Kwradi, Labeeb Ali, Mohammednoor Altarawneh
Summary: The Serine compound is an important model entity of polar amino acids species in biomass. Understanding the decomposition chemistry of serine is crucial in reducing the emission of nitrogen-bearing species during thermal treatment of biomass. This study provides thermo-kinetic parameters for hydrogen abstraction from different sites in the serine molecule, showing that reactions predominantly occur through abstraction of α-C-H hydrogen atoms. The results can be used in formulating kinetic models for nitrogen transformation chemistry in energy recovery of biomass.
COMPUTATIONAL AND THEORETICAL CHEMISTRY
(2023)
Article
Engineering, Chemical
Lei Gao, Bingbing Wei, Xiaochuan Hu, Zaifeng Yao, Yiwen Fang, Xuejian Gao
Summary: In this study, a numerical model of sand triaxial test was established using discrete element software PFC3D, and an indoor triaxial test was conducted to calibrate the numerical model. The influence of microscopic parameters on the macroscopic mechanical response of sand was analyzed. The results showed that the friction coefficient had the greatest impact on the peak strength and residual strength of the sand's stress-strain curve, and it was positively correlated. The normal tangential stiffness ratio was negatively correlated, while the porosity and boundary flexibility stiffness had minimal influence on it.
Article
Health Care Sciences & Services
Xiuping Liu, Dongmei Liu, Chunyu Pan, Hui Su
Summary: A nomogram has been developed to predict the improvement of semen parameters in infertile men following microscopic varicocelectomy. The model showed strong discrimination and calibration, and proved to be clinically applicable.
JOURNAL OF PERSONALIZED MEDICINE
(2023)
Article
Food Science & Technology
Panisa Treepong, Nawanol Theera-Ampornpunt
Summary: This paper proposes a novel method of early bread mold detection using clip-on lenses attached to a smartphone. The microscopic images are automatically classified using state-of-the-art CNNs with transfer learning, and the top models achieve near-perfect classification accuracy.
CURRENT RESEARCH IN FOOD SCIENCE
(2023)
Article
Computer Science, Information Systems
Hui Qi, Ying Shi, Xiaofang Mu, Mingxing Hou
Summary: In the field of granular computing, knowledge is viewed as a classification ability of realistic or abstract objects, characterized by the concept of granularity. This study introduces a continuous parameter-based knowledge granularity and presents a calculation method based on dividing the graph formed by granularity and parameter interval into small rectangles. The approach inspired by definite integral is a new trend in handling knowledge-related problems from the perspective of continuity.
Article
Astronomy & Astrophysics
Leo Vacher, Nils Schoneberg, J. D. F. Dias, C. J. A. P. Martins, Francisco Pimenta
Summary: One of the firm predictions of string theory is the existence of a massless scalar field, the dilaton, coupled to gravity, which violates the Einstein equivalence principle. The runaway dilaton proposed by Damour, Piazza, and Veneziano reconciles the existence of a massless dilaton with observations and predicts nonstandard and testable phenomena. This field can also serve as a natural candidate for dynamical dark energy. Despite previous constraints, we present the first comprehensive constraints on this model, incorporating high redshift data, and ruling out order unity couplings.
Review
Biochemical Research Methods
Marek Ostaszewski, Stephan Gebel, Inna Kuperstein, Alexander Mazein, Andrei Zinovyev, Ugur Dogrusoz, Jan Hasenauer, Ronan M. T. Fleming, Nicolas Le Novere, Piotr Gawron, Thomas Ligon, Anna Niarakis, David Nickerson, Daniel Weindl, Rudi Balling, Emmanuel Barillot, Charles Auffray, Reinhard Schneider
BRIEFINGS IN BIOINFORMATICS
(2019)
Review
Oncology
A. Fucic, A. Aghajanyan, Z. Culig, N. Le Novere
PATHOLOGY & ONCOLOGY RESEARCH
(2019)
Editorial Material
Neurosciences
Natalia Bielczyk, Michele Veldsman, Ayaka Ando, Chiara Caldinelli, Meena M. Makary, Aki Nikolaidis, Marzia A. Scelsi, Melanie Stefan, AmanPreet Badhwar
EUROPEAN JOURNAL OF NEUROSCIENCE
(2019)
Article
Biotechnology & Applied Microbiology
Johannes Bargehr, Lay Ping Ong, Maria Colzani, Hongorzul Davaapil, Peter Hofsteen, Shiv Bhandari, Laure Gambardella, Nicolas Le Novere, Dharini Iyer, Fotios Sampaziotis, Florian Weinberger, Alessandro Bertero, Andrea Leonard, William G. Bernard, Amy Martinson, Nichola Figg, Michael Regnier, Martin R. Bennett, Charles E. Murry, Sanjay Sinha
NATURE BIOTECHNOLOGY
(2019)
Article
Biochemical Research Methods
Jacob Beal, Tramy Nguyen, Thomas E. Gorochowski, Angel Goni-Moreno, James Scott-Brown, James Alastair McLaughlin, Curtis Madsen, Benjamin Aleritsch, Bryan Bartley, Shyam Bhakta, Mike Bissell, Sebastian Castillo Hair, Kevin Clancy, Ausgustin Luna, Nicolas Le Novere, Zach Palchick, Matthew Pocock, Herbert Sauro, John T. Sexton, Jeffrey J. Tabor, Christopher A. Voigt, Zach Zundel, Chris Myers, Anil Wipat
ACS SYNTHETIC BIOLOGY
(2019)
Article
Biochemical Research Methods
Lu Li, Massimo Lai, Stephen Cole, Nicolas Le Novere, Stuart J. Edelstein
PLOS COMPUTATIONAL BIOLOGY
(2020)
Article
Cell Biology
Piero Dalle Pezze, Eleftherios Karanasios, Varvara Kandia, Maria Manifava, Simon A. Walker, Nicolas Gambardella Le Novere, Nicholas T. Ktistakis
Summary: The study found that the translocation of ATG13 during autophagy is influenced by different stimuli and drugs, with multiple translocations observed during mitophagy. The mathematical model supports the hypothesis that the number of ATG13 translocations is directly proportional to the diameter of the targeted mitochondrial fragments, providing new insights into the early dynamics of selective and nonselective autophagy.
Article
Biology
Qiaochu Li, Daniel-Cosmin Marcu, Ottavia Palazzo, Frances Turner, Declan King, Tara L. Spires-Jones, Melanie Stefan, Karl Emanuel Busch
Article
Mathematical & Computational Biology
Hasan Baig, Pedro Fontanarossa, Vishwesh Kulkarni, James McLaughlin, Prashant Vaidyanathan, Bryan Bartley, Shyam Bhakta, Swapnil Bhatia, Mike Bissell, Kevin Clancy, Robert Sidney Cox, Angel Goni Moreno, Thomas Gorochowski, Raik Grunberg, Jihwan Lee, Augustin Luna, Curtis Madsen, Goksel Misirli, Tramy Nguyen, Nicolas Le Novere, Zachary Palchick, Matthew Pocock, Nicholas Roehner, Herbert Sauro, James Scott-Brown, John T. Sexton, Guy-Bart Stan, Jeffrey J. Tabor, Logan Terry, Marta Vazquez Vilar, Christopher A. Voigt, Anil Wipat, David Zong, Zach Zundel, Jacob Beal, Chris Myers
Summary: SBOL Visual is a standard for organizing diagrams in biological engineering, and the latest version 2.3 includes higher-level interactions and more visual options for genetic designs.
JOURNAL OF INTEGRATIVE BIOINFORMATICS
(2021)
Article
Computer Science, Interdisciplinary Applications
Richard Fitzpatrick, Melanie I. Stefan
Summary: This article discusses the two types of validity in computational modeling of biochemical reaction pathways and suggests the use of new collaborative technologies to ensure model validity. It proposes the implementation of an incentivized experimental database for external validity and reproducibility audits for internal validity, both based on FAIR principles and collaborative science practices.
Editorial Material
Biochemical Research Methods
Stefan Gaillard, Tara van Viegen, Michele Veldsman, Melanie I. Stefan, Veronika Cheplygina
Summary: Failure is a crucial part of life and academia, yet it is often ignored. This article highlights the negative consequences of ignoring failure and provides strategies for learning from and dealing with it. These strategies allow academics to develop their own successful approaches to failure.
PLOS COMPUTATIONAL BIOLOGY
(2022)
Article
Mathematical & Computational Biology
Hasan Baig, Pedro Fontanarrosa, Vishwesh Kulkarni, James McLaughlin, Prashant Vaidyanathan, Bryan Bartley, Swapnil Bhatia, Shyam Bhakta, Michael Bissell, Kevin Clancy, Robert Sidney Cox, Angel Goni Moreno, Thomas Gorochowski, Raik Grunberg, Augustin Luna, Curtis Madsen, Goksel Misirli, Tramy Nguyen, Nicolas Le Novere, Zachary Palchick, Matthew Pocock, Nicholas Roehner, Herbert Sauro, James Scott-Brown, John T. Sexton, Guy-Bart Stan, Jeffrey J. Tabor, Marta Vazquez Vilar, Christopher A. Voigt, Anil Wipat, David Zong, Zach Zundel, Jacob Beal, Chris Myers
JOURNAL OF INTEGRATIVE BIOINFORMATICS
(2020)
Article
Mathematical & Computational Biology
Curtis Madsen, Angel Goni Moreno, Zachary Palchick, P. Umesh, Nicholas Roehner, Bryan Bartley, Swapnil Bhatia, Shyam Bhakta, Mike Bissell, Kevin Clancy, Robert Sidney Cox, Thomas Corochowski, Rai K. Grunberg, Augustin Luna, James McLaughlin, Tramy Nguyen, Nicolas Le Novere, Matthew Pocock, Herbert Sauro, James Scott-Brown, John T. Sexton, Guy-Bart Stan, Jeffrey J. Tabor, Christopher A. Voigt, Zach Zundel, Chris Myers, Jacob Beal, Anil Wipat
JOURNAL OF INTEGRATIVE BIOINFORMATICS
(2019)
Article
Mathematical & Computational Biology
Michael Hucka, Frank T. Bergmann, Claudine Chaouiya, Andreas Draeger, Stefan Hoops, Sarah M. Keating, Matthias Koenig, Nicolas Le Novere, Chris J. Myers, Brett C. Olivier, Sven Sahle, James C. Schaff, Rahuman Sheriff, Lucian P. Smith, Dagmar Waltemath, Darren J. Wilkinson, Fengkai Zhang
JOURNAL OF INTEGRATIVE BIOINFORMATICS
(2019)
Article
Biochemistry & Molecular Biology
Janna Hastings, Abraham Mains, Bhupinder Virk, Nicolas Rodriguez, Sharlene Murdoch, Juliette Pearce, Sven Bergmann, Nicolas Le Novere, Olivia Casanueva
FRONTIERS IN MOLECULAR BIOSCIENCES
(2019)