cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A supply chain resilience framework for pandemic disruptions in general trading companies
Creators: name: Sukoco, Anton
name: Vanany, Iwan
name: Purnomo, Jerry Dwi Trijoyo
Publisher: name: International Journal on Food System Dynamics
Year: 2024
Subjects: Supply chain resilience; pandemic disruptions in supply chain; general trading company

description: In general trading companies, COVID-19 pandemic disruptions impacted their supply chain performance and their business. The ability to respond effectively to pandemic disruptions using supply chain resilience framework is needed. This research proposed supply chain resilience framework for pandemic disruption in the general trading companies that is used to assess the relationship between pandemic disruptions and supply chain capabilities. This research employs an empirical approach with a qualitative research method using review literature, rigorous in-depth interview with 12 informants in 5 companies are founded pandemic disruption factors and supply chain capability factors. Indonesian general trading company was used as case study to determine probability value of pandemic disruptions factors, sub-dimension, and dimension using Bayesian Network approach and assess the relationship between pandemic disruption factors and supply chain capability factor. Top three pandemic disruptions factors based on Bayesian Network analysis are (1) meeting order, (2) customer visit, and (3) mobility. The assessment results of supply chain resilience framework in case study indicated that a vital factors of supply chain capability are (1) upscaling competency in absorptive capability, (2) internal and external collaborations and (3) financial management in adaptive capability. The practitioners can be better prioritizing supply chain capabilities for pandemic disruptions using this proposed supply chain resilience framework. This study also providing valuable insight for the managerial implication to understand government direction and promote communication and collaboration (internal and external) amongst their supplier and customers.
description: International Journal on Food System Dynamics, Vol 15, No 5 (2024)
The Early Psychosis Screener for Internet (EPSI)-SR: Predicting 12 month psychotic conversion using machine learning
Creators: name: Perkins, D.O.
name: Walker, E.F.
name: Cornblatt, B.A.
name: Girgis, R.R.
name: Brodey, I.S.
name: Brucato, G.
name: Cadenhead, K.S.
name: Bearden, C.E.
name: Purcell, S.E.
name: Brodey, B.B.
name: Favorov, O.V.
name: Addington, J.
name: Woods, S.W.
Publisher: name: Elsevier B.V.
Year: 2019

description: Introduction: A faster and more accurate self-report screener for early psychosis is needed to promote early identification and intervention. Methods: Self-report Likert-scale survey items were administered to individuals being screened with the Structured Interview for Psychosis-risk Syndromes (SIPS) and followed at eight early psychosis clinics. An a priori analytic plan included Spectral Clustering Analysis to reduce the item pool, followed by development of Support Vector Machine (SVM) classifiers. Results: The cross-validated positive predictive value (PPV) of the EPSI at the default cut-off (76.5%) exceeded that of the clinician-administered SIPS (68.5%) at separating individuals who would not convert to psychosis within 12 months from those who either would convert within 12 months or who had already experienced a first episode psychosis (FEP). When used in tandem with the SIPS on clinical high risk participants, the EPSI increased the combined PPV to 86.6%. The SVM classified as FEP/converters only 1% of individuals in non-clinical and 4% of clinical low risk populations. Sensitivity of the EPSI, however, was 51% at the default cut-off. Discussion: The EPSI identifies, comparably to the SIPS but in less time and with fewer resources, individuals who are either at very high risk to develop a psychotic disorder within 12 months or who are already psychotic. At its default cut-off, EPSI misses 49% of current or future psychotic cases. The cut-off can, however, be adjusted based on purpose. The EPSI is the first validated assessment to predict 12-month psychotic conversion. An online screening system, www.eps.telesage.org, is under development.
title: Biodegradable and Bioabsorbable Polylactic Acid Ferroelectrets with Prominent Piezoelectric Activity
Creators: name: Ma, Xingchen
name: Zhukov, Sergey
name: Seggern, Heinz von
name: Sessler, Gerhard M.
name: Dali, Omar Ben
name: Kupnik, Mario
name: Dai, Ying
name: He, Pengfei
name: Zhang, Xiaoqing
Publisher: name: Wiley
Year: 2024

description: Ferroelectrets have promoted a variety of exciting flexible sensors, actuators, and microenergy harvesters. However, most ferroelectrets have been fabricated from non-degradable petro-based resins, and thus the recycling of these materials constitutes a big challenge. This article reports biodegradable and bioabsorbable ferroelectret films made from polylactic acid (PLA) resins for highly sensitive transducer applications, which can operate either in piezoelectric 33 or 31/32 mode. By modification of the microstructure and polarization, pronounced longitudinal and transverse piezoelectric activities are realized in a single material. For samples with a thickness of 400 µm and a bulk density of 350 kg m⁻³, the Young's moduli in thickness and plane direction are ranging from 0.1 to 10 MPa, respectively. After polarization in the thickness direction, quasi-static piezoelectric d₃₃, g₃₃, d₃₁ (d₃₂), and g₃₁ (g₃₂) coefficients in the PLA films, up to 500 pC N⁻¹, 40 Vm N⁻¹, −44 pC N⁻¹, and −3.6 Vm N⁻¹, are achieved, respectively. The longitudinal piezoelectric coefficients of the PLA films are comparable to non-degradable polymer ferroelectrets, while the transverse piezoelectric activity is superior, which may be attributed to the reduction of Young's moduli in the plane direction. The preparation procedure of the PLA ferroelectrets is compatible with large-scale production lines and thus can greatly promote their applications in green electronics.
Antiferromagnetism and chiral-d wave superconductivity in a honeycomb lattice close to Mott state
Creators: name: Ho, Chien-Peng
name: Voo, Khee-Kyun
Publisher: name: arXiv
Year: 2022
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The antiferromagnetism (AFM) and chiral-d wave superconductivity (SC) in a honeycomb lattice close to an antiferromagnetic (AF) Mott state at half band filling are studied with a t-J model and slave boson mean field theory. The order parameters and single particle dispersion relations at different band filling fractions are investigated. It is found that the AFM enhances the SC, and leads to nodal single particle dispersion relations at two band filling fractions. These unexpected nodal dispersion relations out of nodeless chiral-d wave superconducting order are discussed. A comparison between AF chiral-d wave states and AF extended-s wave states is also given to highlight the pertinent features in chiral-d wave superconducting states. This study may be related to the honeycomb lattice materials such as the In$_3$Cu$_2$VO$_9$ compound.
Abnormal behavior of preferred formation of cationic vacancy from the interior in γ-GeSe monolayer with the stereo-chemical antibonding lone-pair state
Creators: name: Huan, Changmeng
name: Cai, Yongqing
name: Kripalani, Devesh R.
name: Zhou, Kun
name: Ke, Qingqing
Publisher: name: arXiv
Year: 2023
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Two-dimensional (2D) materials tend to have the preferably formation of vacancies at the outer surface. Here, contrary to the normal notion, we reveal a type of vacancy that thermodynamically initiates from the interior part of the 2D backbone of germanium selenide (γ-GeSe). Interestingly, the Ge-vacancy (VGe) in the interior part of γ-GeSe possesses the lowest formation energy amongst the various types of defects considered. We also find a low diffusion barrier (1.04 eV) of VGe which is a half of those of sulfur vacancy in MoS2. The facile formation of mobile VGe is rooted in the antibonding coupling of the lone-pair Ge 4s and Se 4p states near the valence band maximum, which also exists in other gamma-phase MX (M=Sn, Ge; X=S, Te). The VGe is accompanied by a shallow acceptor level in the band gap and induces strong infrared light absorption and p-type conductivity. The VGe located in the middle cationic Ge sublattice is well protected by the surface Se layers-a feature that is absent in other atomically thin materials. Our work suggests that the unique well-buried inner VGe, with the potential of forming structurally protected ultrathin conducting filaments, may render the GeSe layer an ideal platform for quantum emitting, memristive, and neuromorphic applications.
A Max-Min Task Offloading Algorithm for Mobile Edge Computing Using Non-Orthogonal Multiple Access
Creators: name: Kumar, Vaibhav
name: Hanif, Muhammad Fainan
name: Juntti, Markku
name: Tran, Le-Nam
Publisher: name: arXiv
Year: 2021
Subjects: subject: Information Theory (cs.IT)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: To mitigate computational power gap between the network core and edges, mobile edge computing (MEC) is poised to play a fundamental role in future generations of wireless networks. In this letter, we consider a non-orthogonal multiple access (NOMA) transmission model to maximize the worst task to be offloaded among all users to the network edge server. A provably convergent and efficient algorithm is developed to solve the considered non-convex optimization problem for maximizing the minimum number of offloaded bits in a multi-user NOMAMEC system. Compared to the approach of optimized orthogonal multiple access (OMA), for given MEC delay, power and energy limits, the NOMA-based system considerably outperforms its OMA-based counterpart in MEC settings. Numerical results demonstrate that the proposed algorithm for NOMA-based MEC is particularly useful for delay sensitive applications.
description: 5 pages, 5 figures
Dependency distance minimization predicts compression
Creators: name: Ferrer-i-Cancho, Ramon
name: Gómez-Rodríguez, Carlos
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computation and Language (cs.CL)
subject: Neurons and Cognition (q-bio.NC)
subject: FOS: Computer and information sciences
subject: FOS: Biological sciences

description: Dependency distance minimization (DDm) is a well-established principle of word order. It has been predicted theoretically that DDm implies compression, namely the minimization of word lengths. This is a second order prediction because it links a principle with another principle, rather than a principle and a manifestation as in a first order prediction. Here we test that second order prediction with a parallel collection of treebanks controlling for annotation style with Universal Dependencies and Surface-Syntactic Universal Dependencies. To test it, we use a recently introduced score that has many mathematical and statistical advantages with respect to the widely used sum of dependency distances. We find that the prediction is confirmed by the new score when word lengths are measured in phonemes, independently of the annotation style, but not when word lengths are measured in syllables. In contrast, one of the most widely used scores, i.e. the sum of dependency distances, fails to confirm that prediction, showing the weakness of raw dependency distances for research on word order. Finally, our findings expand the theory of natural communication by linking two distinct levels of organization, namely syntax (word order) and word internal structure.
description: To appear in the proceedings of the SyntaFest 2022 (Sofia, Bulgaria, March 21-25)
Construction of a Knowledge Graph for RNA drug analysis
Creators: name: Cavalleri, Emanuele
name: Mesiti, Marco
name: Valentini, Giorgio
Publisher: name: Zenodo
Year: 2023

description: In the past 5 years, a great deal of research has been devoted to the construction of biomedical Knowledge Graphs (KGs) capturing complex hidden biological and biochemical mechanisms by integrating different data sources. KGs are rapidly being adopted by the pharmaceutical industry to accelerate data-driven drug discovery by enabling the use of powerful algorithms for different kinds of applications, ranging from prioritizing novel disease targets to predicting previously unknown drug-disease associations. On the other hand, the COVID-19 pandemic highlighted the importance of RiboNucleic Acid (RNA)-based technologies for the development of new vaccines and, more in general, of novel RNA-based therapies covering the full spectrum of the main human diseases. The availability of a KG describing RNA molecules and their interaction with any other biomedical entity would therefore be a crucial resource for RNA-drug development. However, even if many open data sources report the interaction among different RNA molecules and some other biomedical entities (e.g., drugs, diseases, and genes), we still lack a comprehensive and well-described KG that contains such information. 

This thesis project is rooted in the context of the “National Center for Gene Therapy and Drugs based on RNA Technology” funded by the Italian PNRR, and aims at creating a novel biomedical KG (named RNA-KG) for representing and inferring biological, experimentally validated, interactions among (coding and non-coding) RNA molecules. The construction of RNA-KG faces many interoperability issues for the acquisition of big biological data from biomolecular databanks and bio-ontologies. Starting from the analysis of public data sources containing different kinds of non-coding RNA sequences (and their relationships with other molecules), we have developed a meta-graph to guide the RNA-KG construction by exploiting and integrating biomedical ontologies and relevant data from public databases. Moreover, we propose an initial version of RNA-KG containing around 600K nodes and 6M edges, and we describe its topological characteristics.
Extreme electron acceleration with fixed radiation energy
Creators: name: Good, Michael R. R.
name: Singha, Chiranjeeb
name: Zarikas, Vasilios
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We examine the extreme situation of radiation from an electron that is asymptotically accelerated to the speed of light, resulting in finite emission energy. The analytic solution explicitly demonstrates the difference between radiation power loss and kinetic power loss (null).
description: 8 pages, 8 figures
Dichotomic Aging Behaviour in a Colloidal Glass
Creators: name: Angelini, Roberta
name: Zulian, Laura
name: Fluerasu, Andrei
name: Madsen, Anders
name: Ruocco, Giancarlo
name: Ruzicka, Barbara
Publisher: name: arXiv
Year: 2023
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: An unexpected dichotomic long time aging behaviour is observed in a glassy colloidal clay suspension investigated by X-Ray Photon Correlation Spectroscopy and Dynamic Light Scattering. In the long time aging regime the intensity autocorrelations are non-exponential, following the Kohlrausch-Williams-Watts functional form with exponent bQ. We show that for spontaneously aged samples a stretched behaviour (β_Q < 1) is always found. Surprisingly a compressed exponent (β_Q > 1) appears only when the system is rejuvenated by application of a shear field. In both cases the relaxation times scale as Q^{-1}. These observations shed light on the origin of compressed exponential behaviour and helps in classifying previous results in the literature on anomalous dynamics.
description: 5 pages, 5 figures
Additional file 1 of Characterization of volatile fatty-acid utilization in Escherichia coli aiming for robust valorisation of food residues
Creators: name: Sjöberg, Gustav
name: Gustavsson, Martin
name: Maris, Antonius J. A. Van
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: Space Science
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified

description: Additional file 1: Fig. S1. Specific growth rates from the experiment presented in Fig. 1a, with the same colourcoding. Fig. S2. Concentrations of all quantified volatile fatty acids from the experiments presentedFig. 1a, with the same colour coding.
Multiple contractions of permutation arrays
Creators: name: Amarra, Carmen
name: Briones, Dom Vito A.
name: Loquias, Manuel Joseph C.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Combinatorics (math.CO)
subject: Information Theory (cs.IT)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 05A05, 94B25, 94B65

description: Given a permutation $σ$ on $n$ symbols $\{0, 1, \ldots, n-1\}$ and an integer $1 \leq m \leq n-1$, the $m$th contraction of $σ$ is the permutation $σ^{{\sf CT}^m}$ on $n-m$ symbols obtained by deleting the symbols $n-1, n-2, \ldots, n-m$ from the cycle decomposition of $σ$. The Hamming distance ${\rm hd}(σ,τ)$ between two permutations $σ$ and $τ$ is the number of symbols $x$ such that $σ(x) \neq τ(x)$. In this paper we give a complete characterization of the effect of a single contraction on the Hamming distance between two permutations. This allows us to obtain sufficient conditions for ${\rm hd}(σ,τ)-{\rm hd}(σ^{{\sf CT}^m},τ^{{\sf CT}^m})\leq 2m$.
description: 15 pages, 6 tables
The survival of stellar discs in Fornax-like environments, from TNG50 to real galaxies
Creators: name: Anta, Pablo M. Galán-de
name: Sarzi, M.
name: Pillepich, A.
name: Ding, Y.
name: Zhu, L.
name: Coccato, L.
name: Corsini, E. M.
name: Fahrion, K.
name: Falcón-Barroso, J.
name: Gadotti, D. A.
name: Iodice, E.
name: Lyubenova, M.
name: Martín-Navarro, I.
name: McDermid, R. M.
name: Pinna, F.
name: van de Ven, G.
name: de Zeeuw, P. T.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We study the evolution of kinematically-defined stellar discs in 10 Fornax-like clusters identified in the TNG50 run from the IllustrisTNG suite of cosmological simulations. We considered disc galaxies with present-day stellar mass $M_{\star}\geq 3 \times 10^{8} M_{\odot}$ and follow their evolution since first entering their host cluster. Very few stellar discs survive since falling in such dense environments, ranging from 40% surviving to all being disrupted. Such survival rates are consistent with what reported earlier for the two more massive, Virgo-like clusters in TNG50. In absolute terms, however, the low number of present-day disc galaxies in Fornax-like clusters could be at odds with the presence of three edge-on disc galaxies in the central regions of the actual Fornax cluster, as delineated by the Fornax3D survey. When looking at the Fornax analogues from random directions and with the same selection function of Fornax3D, the probability of finding three edge-on disc galaxies in any one Fornax-like cluster in TNG50 is rather low, albeit not impossible. We also compared the stellar-population properties near the equatorial plane derived from integral-field spectroscopy for the three edge-ons in Fornax to similar line-of-sight integrated values for present-day disc galaxies in TNG50. For one of these, the very old and metal-rich stellar population of its disc cannot be matched by any the disc galaxies in TNG50, including objects in the field. We discuss possible interpretations of these findings, while pointing to future studies on passive cluster spirals as a way to further test state-of-the-art cosmological simulations.
description: 12 pages, 7 figures. Accepted on 21 of October, published on 25 of October
Adding a neuroanatomical biomarker to an individualized risk calculator for psychosis: A proof-of-concept study
Creators: name: Perkins, D.
name: Cadenhead, K.
name: Bearden, C.E.
name: van Erp, T.G.M.
name: Chung, Y.
name: Woods, S.W.
name: Cannon, T.D.
name: Walker, E.
name: Seidman, L.J.
name: North American Prodrome Longitudinal Study Consortium
name: Cornblatt, B.
name: Tsuang, M.
name: McEwen, S.
name: Addington, J.
name: Mathalon, D.H.
name: McGlashan, T.
Publisher: name: Elsevier B.V.
Year: 2019

description: In a recent study, a neuroanatomical-based age prediction model observed neuromaturational deviance among clinical high-risk individuals who developed psychosis. Here we aimed to investigate whether incorporating “brain age gap” (discrepancy between neuroanatomical-based predicted age and chronological age) to the North American Prodromal Longitudinal Study risk calculator would enhance prediction of psychosis conversion. The effect of brain age gap was significant (HR = 1.21, P = 0.047), but its predictive variance was found to overlap entirely with age at ascertainment, consistent with the view that greater brain-age gap and earlier age at onset of prodromal symptoms are correlated indicators of insidious-onset forms of psychosis.
Thickness-dependent catalytic activity of hydrogen evolution based on single atomic catalyst of Pt above MXene
Creators: name: Shu, Zheng
name: Cai, Yongqing
Publisher: name: arXiv
Year: 2023
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Hydrogen as the cleanest energy carrier is a promising alternative renewable resource to fossil fuels. There is an ever-increasing interest in exploring efficient and cost-effective approaches of hydrogen production. Recent experiments have shown that single platinum atom immobilized on the metal vacancies of MXenes allows a high-efficient hydrogen evolution reaction (HER). Here using ab initio calculations, we design a series of substitutional Pt-doped Tin+1CnTx (Tin+1CnTx-PtSA) with different thicknesses and terminations (n = 1, 2 and 3, Tx = O, F and OH), and investigate the quantum-confinement effect on the HER catalytic performance. Surprisingly, we reveal a strong thickness effect of the MXene layer on the HER performance. Amongst the various surface-terminated derivatives, Ti2CF2-PtSA and Ti2CH2O2-PtSA are found to be the best HER catalysts with the change of Gibbs free energy ΔG*H ~ 0 eV, complying with the thermoneutral condition. The ab initio molecular dynamics simulations reveal that Ti2CF2-PtSA and Ti2CH2O2-PtSA possess a good thermodynamic stability. The present work shows that the HER catalytic activity of the MXene is not solely governed by the local environment of the surface such as Pt single atom. We point out the critical role of thickness control and surface decoration of substrate in achieving a high-performance HER catalytical activity.
Yang-Mills-Stueckelberg Theories, Framing and Local Breaking of Symmetries
Creators: name: Popov, Alexander D.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We consider Yang-Mills theory with a compact structure group $G$ on a Lorentzian 4-manifold $M={\mathbb R}\timesΣ$ such that gauge transformations become identity on a submanifold $S$ of $Σ$ (framing over $S\subsetΣ$). The space $S$ is not necessarily a boundary of $Σ$ and can have dimension $k\le 3$. Framing of gauge bundles over $S\subsetΣ$ demands introduction of a $G$-valued function $ϕ_S$ with support on $S$ and modification of Yang-Mills equations along ${\mathbb R}\times S\subset M$. The fields $ϕ_S$ parametrize nonequivalent flat connections mapped into each other by a dynamical group ${\mathcal G}_S$ changing gauge frames over $S$. It is shown that the charged condensate $ϕ_S$ is the Stueckelberg field generating an effective mass of gluons in the domain $S$ of space $Σ$ and keeping them massless outside $S$. We argue that the local Stueckelberg field $ϕ_S$ can be responsible for color confinement. We also briefly discuss local breaking of symmetries in gravity. It is shown that framing of the tangent bundle over a subspace of space-time makes gravitons massive in this subspace.
description: 19 pages
The relationship between poor reading and anxiety in children
Creators: name: Jones, Alana Rochelle
Publisher: name: Macquarie University
Year: 2022
Subjects: Other education not elsewhere classified

description: Reading difficulties and anxiety are two leading concerns in childhood. Approximately 16% of children read below the average range for their age or school grade (Shaywitz et al., 1992), and an estimated 6.9% of young people meet diagnostic criteria for an anxiety disorder (Lawrence et al., 2016). Until recently, reading and anxiety have been investigated separately. However, parents, educators, clinicians, and researchers are increasingly aware that problems with reading and emotional health co-occur. This thesis reviews and extends the current literature on the relationship between poor reading and anxiety in children. An empirical investigation with 47 poor readers aged 7-12 years was conducted to clarify the types of anxiety (e.g., social, generalised, separation, and reading anxiety) experienced by those with reading difficulties. We also investigated whether these anxieties were related to specific types of reading problems (e.g., nonword and irregular word reading accuracy, text reading fluency, and reading comprehension). Children completed a series of reading measures and parents completed a questionnaire on their child’s anxiety and inattention symptoms. A series of one-sample t-tests against normative data indicated that our sample of poor readers experienced above-average levels of social, generalised, separation, and reading anxiety. These results were statistically significant, and effect sizes were moderate to large. Partial correlations that controlled for inattention assessed the associations between types of anxiety and types of reading. Reading fluency was statistically significantly, moderately, and negatively associated with social anxiety and reading anxiety. Small-to-moderate negative partial correlations between irregular word reading accuracy and reading anxiety, and reading comprehension and reading anxiety were found, however, these were not statistically significant. These findings demonstrate the importance of screening poor readers for anxiety and suggest that certain anxiety symptoms may be more closely associated with specific reading problems than others. Knowledge of the anxiety symptoms that poor readers may experience and their relationships with different reading difficulties may facilitate assessment and treatment.
Equivariant index bound for min-max free boundary minimal surfaces
Creators: name: Franz, Giada
Publisher: name: arXiv
Year: 2021
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics

description: Given a three-dimensional Riemannian manifold with boundary and a finite group of orientation-preserving isometries of this manifold, we prove that the equivariant index of a free boundary minimal surface obtained via an equivariant min-max procedure à la Simon--Smith with $n$-parameters is bounded above by $n$.
description: 26 pages, 1 figure, some clarifying expository changes in v2
High-throughput screening of heterogeneous transition metal dual-atom catalysts by synergistic effect for nitrate reduction to ammonia
Creators: name: Shu, Zheng
name: Chen, Hongfei
name: Liu, Xing
name: Jia, Huaxian
name: Yan, Hejin
name: Cai, Yongqing
Publisher: name: arXiv
Year: 2023
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Nitrate reduction to ammonia has attracted much attention for nitrate (NO3-) removal and ammonia (NH3) production. Identifying promising catalyst for active nitrate electroreduction reaction (NO3RR) is critical to realize efficient upscaling synthesis of NH3 under low-temperature condition. For this purpose, by means of spin-polarized first-principles calculations, the NO3RR performance on a series of graphitic carbon nitride (g-CN) supported double-atom catalysts (denoted as M1M2@g-CN) are systematically investigated. The synergistic effect of heterogeneous dual-metal sites can bring out tunable activity and selectivity for NO3RR. Amongst 21 candidates examined, FeMo@g-CN and CrMo@g-CN possess a high performance with low limiting potentials of -0.34 and -0.39 V, respectively. The activities can be attributed to a synergistic effect of the M1M2 dimer d orbitals coupling with the anti-bonding orbital of NO3-. The dissociation of deposited FeMo and CrMo dimers into two separated monomers is proved to be difficult, ensuring the kinetic stability of M1M2@g-CN. Furthermore, the dual-metal decorated on g-CN significantly reduces the bandgap of g-CN and broadens the adsorption window of visible light, implying its great promise for photocatalysis. This work opens a new avenue for future theoretical and experimental design related to NO3RR photo-/electrocatalysts.
Choice of Agricultural Cooperative Marketing Channel and Economic Returns among Members: Evidence from Rice Farmers in Vietnam
Creators: name: Nhan, Tran Quoc
name: Quyen, Nguyen Thi Kim
Publisher: name: International Journal on Food System Dynamics
Year: 2024
Subjects: Agricultural cooperative; marketing channel; member; economic return

description: This study aims to investigate the impact of using agricultural cooperative channel for output sale on the economic returns of members’ farms in Vietnam’s Mekong River Delta. The primary data were gathered from 293 members of agricultural cooperatives, including 113 members using a cooperative channel for output sale and 180 members not using the cooperative channel. Propensity score matching was employed to adjust the possible selection bias generated by systematically different observable and unobservable attributes between cooperative channel users and non-users. The results showed that using the cooperative channel for paddy sale had a statistically significant impact on economic performances, such as selling price, gross margin, and return on investment, which suggests that agricultural cooperatives could serve as an effiective marketing channel for rice farmers in Vietnam.
description: International Journal on Food System Dynamics, Vol 15, No 5 (2024)
The performance analysis of the industrial tomato sector in Algeria: On the consequences of unfair prices
Creators: name: Benmehaia, Amine M.
name: Samoggia, Antonella
name: Benziouche, Salah Eddine
name: Benharrat, Oualid
name: Ayfantopoulou, Georgia
Publisher: name: International Journal on Food System Dynamics
Year: 2024
Subjects: Sector analysis; vertical relationship; contract farming; industrial tomato; Algeria

description: The aim of this study is to examine the structure of Algeria's industrial tomato sector, drawing lessons and highlighting the associated challenges. The study relies on comprehensive data, encompassing a substantial number of observations (up to 9 127) from the production and processing segments of the supply chain. The main findings reveal significant concentration within the processing segment (with a concentration index of 0.87 in 2021), indicating an oligopolistic market structure with limited competitive dynamics. Furthermore, the production segment displays a concerning trend of disengagement among producers, with a significant decline in their participation in the contracting process in recent years. The study also highlights weak contractual performance in the vertical relationship between the two segments, primarily due to unfair pricing practices. These findings collectively indicate an alarming situation for the entire sector. Consequently, this study provides some implications for public policy, suggesting the need for updated measures to address the current challenges.
description: International Journal on Food System Dynamics, Vol 15, No 5 (2024)
Metabolic abnormalities and low dietary Omega 3 are associated with symptom severity and worse functioning prior to the onset of psychosis: Findings from the North American Prodrome Longitudinal Studies Consortium
Creators: name: Yao, J.
name: Minichino, A.
name: Walker, E.F.
name: Addington, J.
name: Perkins, D.O.
name: Tsuang, M.
name: North American Prodromal Longitudinal Studies (NAPLS) consortium
name: Mathalon, D.
name: Seidman, L.J.
name: Woods, S.W.
name: McGlashan, T.H.
name: Bearden, C.
name: Kelsven, S.
name: Cannon, T.D.
name: Cadenhead, K.S.
name: Cornblatt, B.A.
Publisher: name: Elsevier B.V.
Year: 2019

description: Objective: Patients with schizophrenia have a high prevalence of metabolic disorders and cardiovascular mortality. It is possible that a vulnerability to metabolic abnormalities is associated with risk for psychosis, symptoms and functionality. In this study, we evaluate demographic information, cardiometabolic indices, symptoms and functioning in an antipsychotic free cohort at Clinical High Risk (CHR) for psychosis from the NAPLS Omega 3 fatty acid clinical trial. Method: Subjects received physical exams and metabolic monitoring prior to randomization into the Omega 3 versus Placebo trial. Anthropometrical measures, vital signs, glucose, and lipids were assessed along with symptoms, functioning, dietary Omega 3 fatty acids, erythrocyte polyunsaturated fatty acid content and a measure of lipid peroxidation (TBARS, Thiobarbituric acid-reactive substances). Results: The sample included 113 CHR subjects (42.1% female; 17.5% Latino) ages 12–29. The mean BMI was 24.3 with a trend toward higher BMI and a higher incidence of metabolic syndrome in Latino subjects; 36% of the sample was obese/overweight; 37.6% met criteria for prehypertension/hypertension; 4.2% met criteria for prediabetes/diabetes; 9.6% showed evidence of insulin resistance and 44.7% had dyslipidemia. The TBARS was elevated at 9.8 μM ± 6.1 (normal 1.86–3.94 μM). Metabolic parameters and a diet low in Omega 3 rich foods were significantly associated with prodromal symptoms and poor functioning. Conclusions: CHR subjects show a high percentage of metabolic abnormalities prior to exposure to antipsychotic medication. These findings reinforce that early detection of metabolic disturbances and food insecurity is crucial since these factors are modifiable with the potential for significant gains in terms of quality of life, physical and mental health.
Bogoliubov spectrum and the dynamic structure factor in a quasi-two-dimensional spin-orbit coupled BEC
Creators: name: Kaur, Inderpreet
name: Ghosh, Sankalpa
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We compute the the Bogoliubov-de-Gennes excitation spectrum in a trapped two-component spin-orbit-coupled (SOC) Bose-Einstein condensate (BEC) in quasi-two-dimensions as a function of linear and angular momentum and analyse them. The excitation spectrum exhibits a minima-like feature at finite momentum for the immiscible SOC-BEC configuration. We augment these results by computing the dynamic structure factor in the density and pseudo-spin sector, and discuss its interesting features that can be experimentally measured through Bragg spectroscopy of such ultra cold-condensate.
description: Submitted ( Under peer review process)
Longitudinal changes in social cognition in individuals at clinical high risk for psychosis: An outcome based analysis
Creators: name: Lu, L.
name: Woods, S.W.
name: Bearden, C.E.
name: Tsuang, M.T.
name: Walker, E.F.
name: McGlashan, T.H.
name: Addington, J.
name: Cornblatt, B.A.
name: Cannon, T.D.
name: Cadenhead, K.S.
name: Mathalon, D.H.
name: Seidman, L.J.
name: Perkins, D.O.
name: Shakeel, M.K.
Publisher: name: Elsevier B.V.
Year: 2019

description: Social cognition deficits have been observed in individuals at clinical high risk (CHR) for psychosis. Longitudinal change in social cognition were analyzed in CHR individuals from the North American Prodrome Longitudinal Study (NAPLS2) based on outcome at 24 months. Individuals (n = 359) were classified into remission, symptomatic, prodromal progression and transition to psychosis (CHR-T) groups. Social cognition was assessed using theory of mind, emotion perception, and social perception tasks. There were no differences at baseline or 24 months between the groups on social cognition. Non-transition groups improved significantly over time on social cognition, but CHR-T did not show this effect.
Inter-decadal climate variability induces differential ice response along Pacific-facing West Antarctica.
Creators: name: Christie, Frazer DW
name: Steig, Eric J
name: Gourmelen, Noel
name: Tett, Simon FB
name: Bingham, Robert G
Publisher: name: Apollo - University of Cambridge Repository
Year: 2023
Subjects: Article
/704/106/125
/704/106/829/2737
/123
/134
/139
/119
article

description: Funder: Carnegie Trust for the Universities of Scotland; doi: https://doi.org/10.13039/501100000582
description: Funder: Prince Albert II of Monaco Foundation (Prince Albert II Foundation); doi: https://doi.org/10.13039/501100011592
description: Funder: Scottish Alliance for Geoscience, Environment and Society (SAGES); doi: https://doi.org/10.13039/100008083
description: West Antarctica has experienced dramatic ice losses contributing to global sea-level rise in recent decades, particularly from Pine Island and Thwaites glaciers. Although these ice losses manifest an ongoing Marine Ice Sheet Instability, projections of their future rate are confounded by limited observations along West Antarctica's coastal perimeter with respect to how the pace of retreat can be modulated by variations in climate forcing. Here, we derive a comprehensive, 12-year record of glacier retreat around West Antarctica's Pacific-facing margin and compare this dataset to contemporaneous estimates of ice flow, mass loss, the state of the Southern Ocean and the atmosphere. Between 2003 and 2015, rates of glacier retreat and acceleration were extensive along the Bellingshausen Sea coastline, but slowed along the Amundsen Sea. We attribute this to an interdecadal suppression of westerly winds in the Amundsen Sea, which reduced warm water inflow to the Amundsen Sea Embayment. Our results provide direct observations that the pace, magnitude and extent of ice destabilization around West Antarctica vary by location, with the Amundsen Sea response most sensitive to interdecadal atmosphere-ocean variability. Thus, model projections accounting for regionally resolved ice-ocean-atmosphere interactions will be important for predicting accurately the short-term evolution of the Antarctic Ice Sheet.
description: Carnegie Trust for the Universities of Scotland Carnegie PhD Scholarship Scottish Alliance for Geoscience, Environment and Society (SAGES) Prince Albert II of Monaco Foundation NSF Grant 2045075 European Space Agency
Coupling to multi-mode waveguides with space-time shaped free-space pulses
Creators: name: Jolly, Spencer W.
name: Kockaert, Pascal
Publisher: name: arXiv
Year: 2023
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Guided wave optics, including most prominently fiber optics and integrated photonics, very often considers only one or very few spatial modes of the waveguides. Despite being known and utilized for decades, multi-mode guided wave optics is currently rapidly increasing in parallel with technological improvements and better simulation tools. The physics of multi-mode interactions are usually driven by some initial energy distribution in a number of spatial modes. In this work we introduce how, with free-space input beams having space-time couplings, the different modes can be excited with different complex frequency or time profiles. We cover fundamentals, the coupling with a few simple space-time aberrations, different waveguides, and a number of technical nuances. This concept of space-time initial conditions in multi-mode waveguides will provide yet another tool to study the rich nonlinear interactions in such systems.
description: 22 pages, 17 figures, version originally submitted
Does the Truth Lie in One's Gestures? Relationships Between Gesture, Memory, Personality, and Alternate Facts
Creators: name: BHARADWAJ, Avni
Publisher: name: Macquarie University
Year: 2022
Subjects: Other education not elsewhere classified

description: Gesture production has been demonstrated to ease cognitive burdens associated with various tasks involving speech. Conversely, lying has been demonstrated to increase cognitive load. There is, however, limited research on whether gestures can alleviate the increased cognitive burden associated with deception. The present study therefore examined whether gesture production during lying eases cognitive load, and whether people were more likely to produce gestures when lying than when telling the truth. The study further examined whether gesture production improved recall for those who told the truth, and ability to integrate false testimony for those who lied. Moderating effects of personality, non-verbal memory and idea generation on gesture production and lying were also assessed. Participants (N = 150, Mage = 22.5, SDage = 7.3) watched a video of a minor crime. At subsequent recall, participants were required to either answer truthfully, or lie. They were also allocated to one of three gesture conditions: Instructed Gesture, No Gesture, or Spontaneous Gesture. While there was no effect of gesture production on perceived cognitive load, participants who told the truth experienced higher cognitive load than participants who lied. Additionally, participants required to tell the truth produced more iconic gestures than participants instructed to lie, but only when explicitly instructed to gesture. Gesture production also supported factual free recall, but did not support participants’ ability to lie. This study’s findings have important implications for the forensic field in understanding the behaviour of liars, as well as theoretical implications regarding lying and gesture production.
Additional file 1 of The dual HDAC-PI3K inhibitor CUDC-907 displays single-agent activity and synergizes with PARP inhibitor olaparib in small cell lung cancer
Creators: name: Liying Ma
name: Bian, Xing
name: Wenchu Lin
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Pharmacology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: Hematology

description: Additional file 1: Supplementary Figure 1. Relative amount of phosphorylated proteins were determined by densitometric analysis.The quantification data presented were the average densitometric value of three independent western blotting experiments. One of three experiments with similar results is shown in Fig. 1d.
Additional file 3 of The dual HDAC-PI3K inhibitor CUDC-907 displays single-agent activity and synergizes with PARP inhibitor olaparib in small cell lung cancer
Creators: name: Liying Ma
name: Bian, Xing
name: Wenchu Lin
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Pharmacology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: Hematology

description: Additional file 3: Supplementary Figure 3. Effects of CUDC-907 and olaparib on the expression of RAD51 in SCLC cells. RT-qPCR analysis of RAD51 expression in SCLC cells treated with 10 nM CUDC-907 and 10 μM olaparib alone or in combination for 24 h. Gene expression was normalized to β-actin. Error bars represent mean ± S.D. *P
Structural and microscopic relaxations in a colloidal glass
Creators: name: Marques, Flavio Augusto de Melo
name: Angelini, Roberta
name: Zaccarelli, Emanuela
name: Farago, Bela
name: Ruta, Beatrice
name: Ruocco, Giancarlo
name: Ruzicka, Barbara
Publisher: name: arXiv
Year: 2023
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The aging dynamics of a colloidal glass has been studied by multiangle Dynamic Light Scattering, Neutron Spin Echo, X-ray Photon Correlation Spectroscopy and Molecular Dynamics simulations. The two relaxation processes, microscopic (fast) and structural (slow), have been investigated in an unprecedentedly wide range of time and length scales covering both ergodic and nonergodic regimes. The microscopic relaxation time remains diffusive at all length scales across the glass transition scaling with wavevector Q as Q^{-2}. The length-scale dependence of structural relaxation time changes from diffusive, characterized by a Q^{-2}-dependence in the early stages of aging, to Q^{-1}- dependence in the full aging regime which marks a discontinuous hopping dynamics. Both regimes are associated with a stretched behaviour of the correlation functions. We expect these findings to provide a general description of both relaxations across the glass transition.
description: 6 pages, 4 figures
THE IMPACTS OF COVID-19 ON THE MENTAL HEALTH OF THE NURSING TEAM IN INTENSIVE CARE UNITS: A SCOPING REVIEW
Creators: name: de Oliveira Machado, Carolina
name: Veríssimo e Oliveira, Lannuzya
name: Salvador, Pétala
name: da Fonseca, Jucielly
name: Dantas, Eder
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Medicine and Health Sciences
subject: #covid-19
subject: #intensivecareunits
subject: #mentalhealth
subject: #nursing
subject: #pandemic

description: To identify and map the impacts of COVID-19 on the mental health of the nursing team in intensive care units.
White Dwarf--White Dwarf collisions in AGN discs via close encounters
Creators: name: Luo, Yan
name: Wu, Xiao-Jun
name: Zhang, Shu-Rui
name: Wang, Jian-Min
name: Ho, Luis C.
name: Yuan, Ye-Fei
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: White dwarfs (WDs) in active galactic nucleus (AGNs) discs might migrate to the inner radii of the discs and form restricted three-body systems with two WDs moving around the central supermassive black hole (SMBH) in close orbits. These systems could be dynamical unstable, which can lead to very close encounters or direct collisions. In this work, we use N-body simulations to study the evolution of such systems with the different initial orbital separation $p$, relative orbital inclination $Δ{i}$ and SMBH mass $M$. It is found that the close encounters of WDs mainly occur at $1.1R_{\rm H} \lesssim p \lesssim 2\sqrt{3}R_{\rm H}$, where $R_{\rm H}$ is the mutual Hill radius. For $p<1.1R_{\rm H}$, the majority of WDs move in horseshoe or tadpole orbits, and only few of them with small initial orbital phase difference undergo close encounters. For $p=3.0R_{\rm H}$, WD-WD collisions occur in most of the samples within a time of $10^5P_1$, and considerable collisions occur within a time of $t<62P_1$ for small orbital radii, where $P_1$ is the orbital period. The peak of the closest separation distribution increase and the WD-WD collision fraction decreases with an increase of the relative inclination. The closest separation distribution is similar in cases with the different SMBH mass, but the WD-WD collision fraction decreases as the mass of SMBHs increases. According to our estimation, the event rate of the cosmic WD-WD collision in AGN discs is about $300{\rm Gpc^{-3}yr^{-1}}$, roughly $1\%$ of the one of the observed type Ia supernova. The corresponding electromagnetic emission signals can be observed by large surveys of AGNs.
description: 9 pages, 10 figures