cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Mostafa Abedinifard, Omid Azadibougar, Amirhossein Vafa (eds.). Persian Literature as World Literature
Creators: name: Fomeshi, Behnam
Publisher: name: figshare
Year: 2022
Subjects: subject: 200525 Literary Theory
subject: FOS: Languages and literature

description: Persian literature used to be visibly worldly when Persian was a lingua franca in a vast space from Balkan to China. With the British colonialism in the India and the rise of nation states in the nineteenth and twentieth centuries, Persian lost its status and became more national in various contexts. In Iran it only got worsened with sanctions, censorship, and the “Neither Western nor Eastern” motto following the 1979 Revolution. Therefore, it might seem that Persian literature of Iran today has no claim of “worldliness”. However, the fact that post-revolutionary Iran is the focus of several chapters in this volume challenges such presuppositions about contemporary Iranian literature. The fact that it belongs to the Literature as World Literature Series is a testimony to the bringing of Persian literature into dialogue with other World Literatures represented in this series.
Development of Nylon 6 nanofibers modified with Cyanex-272 for cobalt recovery
Creators: name: Chaves, Rebeca Mello
name: Power, Nicholas P.
name: Collinson, Simon Robert
name: Tanabe, Eduardo Hiromitsu
name: Bertuol, Daniel Assumpção
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biochemistry
subject: Space Science
subject: Biotechnology
subject: Evolutionary Biology
subject: FOS: Biological sciences
classificationCode: 59999
subject: Environmental Sciences not elsewhere classified
classificationCode: 39999
subject: Chemical Sciences not elsewhere classified
subject: Ecology

description: With a worldwide ever increasing demand for metals, particularly for the manufacture of electronics and batteries, there is not only a concurrent need to recover these materials from their subsequent waste streams but also a need to make advancements to do this via development of more efficient and eco-friendly processes for metal recovery; solid-phase extraction can be considered a promising alternative to conventional processes. This work studied the production of novel nanofibers modified with Cyanex 272 and their application in the recovery of cobalt present in aqueous solution The nanofibers produced by forcespinning were characterized by SEM, FT-IR and TGA and the extraction of cobalt was evaluated by variation of the pH, solid:liquid (S:L) ratio, extraction time and Cyanex 272 content in the nanofibers. The best extraction efficiency was 99.96%, achieved under the following conditions: pH 8; (S:L) ratio of 1:200; 25% of Cyanex 272; Extraction time of 60 min. The maximum extraction capacity obtained was 15.46 mg Co/g of nanofiber and 70.15 mg Co/g of extractor. In successive reuse cycles, the results demonstrated that the extraction efficiency was maintained at over 85%. The findings showed that Nylon 6/Cyanex 272 nanofibers are a new robust and promising material for the recovery of heavy metals from aqueous solution, confirming that nanofibers have an efficiency similar to conventional liquid–liquid extraction, without the disadvantage of volatile organic compounds emissions generated by the use of organic diluents.
Observation of Multimode Solitons in Few-Mode Fiber
Creators: name: Zhu, Zimu
name: Wright, Logan G.
name: Christodoulides, Demetrios N.
name: Wise, Frank W.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We experimentally isolate and directly observe multimode solitons in few-mode graded-index fiber. By varying the input energy and modal composition of the launched pulse, we observe a continuous variation of multimode solitons with different spatiotemporal properties. They exhibit an energy-volume relation that is distinct from those of single-mode and fully spatiotemporal solitons.
description: 11 pages, 5 figures
Linear differential equations with slowly growing solutions
Creators: name: Gröhn, Janne
name: Huusko, Juha-Matti
name: Rättyä, Jouni
Publisher: name: arXiv
Year: 2016
Subjects: subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: 30H10, 34M10 (Primary)

description: This research concerns coefficient conditions for linear differential equations in the unit disc of the complex plane. In the higher order case the separation of zeros (of maximal multiplicity) of solutions is considered, while in the second order case slowly growing solutions in $H^\infty$, $\rm{BMOA}$ and the Bloch space are discussed. A counterpart of the Hardy-Stein-Spencer formula for higher derivatives is proved, and then applied to study solutions in the Hardy spaces.
description: 22 pages
Surgery for gastric remnant cancer results in similar overall survival rates compared with primary gastric cancer : a propensity score-matched analysis
Creators: name: Galata, Christian
name: Ronellenfitsch, Ulrich
name: Weiß, Christel
name: Blank, Susanne
name: Reißfelder, Christoph
name: Hardt, Julia
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2020
Subjects: subject: 610

description: Background: The purpose of this study was to investigate clinical features, prognostic factors, and overall survival (OS) in surgical patients with gastric remnant cancer (GRC). Methods: A retrospective analysis of patients with gastrectomy for pT1–4 gastric cancer between October 1972 and February 2014 at our institution was performed. Clinical characteristics were compared between patients with GRC and those with primary gastric cancer (PGC). Multivariable Cox regression analysis was performed to determine the prognostic factors for OS in patients with GRC. A propensity score-matched cohort was used to investigate OS between the GRC and PGC groups. Results: Of a baseline cohort of 1440 patients, 95 patients with GRC were identified. Patients with GRC underwent more multivisceral resections (p < 0.001) than patients with PGC despite lower tumor stages (p = 0.018); however, R0 resection rates were not significantly different (p = 0.211). The postoperative overall (p = 0.032) and major surgical (p = 0.021) complication rates and the 30-day (p = 0.003) and in-hospital (p = 0.008) mortality rates were higher in patients with GRC. In multivariable analysis, the only prognostic factors for worse OS in GRC were higher tumor stage (p < 0.001) and the occurrence of postoperative complications (p < 0.001). OS between propensity score-matched GRC and PGC groups was not significantly different (p = 0.772). Conclusions: GRC required more invasive surgery than PGC; however, the feasibility of R0 resection was similar. The prognostic factors of GRC were similar to those of PGC, and OS was not significantly different between both groups. Patients with GRC benefit from extensive surgery when performed with low morbidity and mortality.
Solidification/stabilization of Pb (II) and Cu (II) containing wastewater in cement matrix
Creators: name: Maiti, Soumitra
name: Malik, Jaideep
name: Prasad, Basheshwer
name: Minocha, Ashwani Kumar
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biochemistry
subject: Space Science
subject: Molecular Biology
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
classificationCode: 39999
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
classificationCode: 69999
subject: Biological Sciences not elsewhere classified

description: This study reported solidification/stabilization of lead and copper-laden fly ash (adsorbent) utilizing cement as binder for their ultimate disposal. The Pb (II) and Cu (II) loaded fly ash was successfully immobilized within the cement matrix without presence of any chemical agents. A retardation of 80-100 minutes in the setting time of cement paste was noticed on the addition of metal-laden fly ash attributed to the presence of metal ions. However, a gradual decrease in mechanical strength of the mortars was observed with higher amounts of Pb (II) and Cu (II)-loaded fly ash in the mix composition. This gradual decrease is ascribed to the breakdown of calcium silicate hydrate (CSH) gel network in the presence of metal crystallites, as confirmed by scanning electron microscopy (SEM) and energy-dispersive x-ray (EDX) analyses. TG-DTG studies also reveal a decrease in CSH (%) from 4.77% (for fly ash cement mortar) to 4.14% and 3.86% for Pb (II) and Cu (II)-loaded fly ash mortars, respectively. X-ray diffraction (XRD) analysis of metal-laden fly ash cement mortars substantiate the immobilization of Pb (II) and Cu (II) metal ions in the cement matrix as peaks for Ca[Pb(OH)3]2 and Ca[CuH2O5Si] are visible in their patterns, respectively. TCLP tests conducted on 56 day cured metal-laden fly ash mortars show leachate concentration not exceeding the discharge standards. Overall, these results indicate that this integrated adsorption- solidification/stabilization process is efficient for safe disposal and utilization of heavy metal-laden fly ash for building and construction related work as a secondary material.
Transit Timing Observations from Kepler. IX. Catalog of the Full Long-Cadence Data Set
Creators: name: Holczer, Tomer
name: Mazeh, Tsevi
name: Nachmani, Gil
name: Jontof-Hutter, Daniel
name: Ford, Eric B.
name: Fabrycky, Daniel
name: Ragozzine, Darin
name: Kane, Mackenzie
name: Steffen, Jason H.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We present a new transit timing catalog of 2599 Kepler Objects of Interest (=KOIs), using the PDC-MAP long-cadence light curves that include the full seventeen quarters of the mission (ftp://wise- ftp.tau.ac.il/pub/tauttv/TTV/ver_112). The goal is to produce an easy-to-use catalog that can stimulate further analyses of interesting systems. For 779 KOIs with high enough SNRs, we derived the timing, duration and depth of 69,914 transits. For 1820 KOIs with lower SNR, we derived only the timing of 225,273 transits. After removal of outlier timings, we derived various statistics for each KOI that were used to indicate significant variations. Including systems found by previous works, we have detected 260 KOIs which showed significant TTVs with long-term variations (>100 day), and another fourteen KOIs with periodic modulations shorter than 100 day and small amplitudes. For five of those, the periodicity is probably due to the crossing of rotating stellar spots by the transiting planets.
description: 81 pages, 34 figures, 8 tables. Accepted for publication in ApJS
Hybrid continuous dynamical decoupling: a photon-phonon doubly dressed spin
Creators: name: Teissier, Jean
name: Barfuss, Arne
name: Maletinsky, Patrick
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the parametric interaction between a single Nitrogen-Vacancy electronic spin and a diamond mechanical resonator in which the spin is embedded. Coupling between spin and oscillator is achieved by crystal strain, which is generated upon actuation of the oscillator and which parametrically modulates the spins' energy splitting. Under coherent microwave driving of the spin, this parametric drive leads to a locking of the spin Rabi frequency to the oscillator mode in the megahertz range. Both the Rabi oscillation decay time and the inhomogeneous spin dephasing time increase by two orders of magnitude under this spin-locking condition. We present routes to prolong the dephasing times even further, potentially to the relaxation time limit. The remarkable coherence protection that our hybrid spin-oscillator system offers is reminiscent of recently proposed concatenated continuous dynamical decoupling schemes and results from our robust, drift-free strain-coupling mechanism and the narrow linewidth of the high-quality diamond mechanical oscillator employed. Our findings suggest feasible applications in quantum information processing and sensing.
description: 6 pages, 4 figures
Formation of Exceptional Points in pseudo-Hermitian Systems
Creators: name: Starkov, Grigory A.
name: Fistul, Mikhail V.
name: Eremin, Ilya M.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Motivated by the recent growing interest in the field of $\mathcal{P}\mathcal{T}$-symmetric Hamiltonian systems we theoretically study the emergency of singularities called Exceptional Points ($\textit{EP}$s) in the eigenspectrum of pseudo-Hermitian Hamiltonian as the strength of Hermiticity-breaking terms turns on. Using general symmetry arguments, we characterize the separate energy levels by a topological $\mathbb{Z}_2$ index which corresponds to the signs $\pm 1$ of the eigenvalues of pseudo-metric operator $\hat ζ$ in the absence of Hermiticity-breaking terms. After that, we show explicitly that the formation of second-order $\textit{EP}$s is governed by this $\mathbb{Z}_2$-index: only the pairs of levels with $\textit{opposite}$ index can provide second-order $\textit{EP}$s. Our general analysis is accompanied by a detailed study of $\textit{EP}$s appearance in an exemplary $\mathcal{P}\mathcal{T}$-symmetric pseudo-Hermitian system with parity operator in the role of $\hat ζ$: a transverse-field Ising spin chain with a staggered imaginary longitudinal field. Using analytically computed parity indices of all the levels, we analyze the eigenspectrum of the model in general, and the formation of third-order $\textit{EP}$s in particular
Single and binary adsorption of lead and cadmium ions in aqueous solutions and river water by butylamine functionalized vermiculite: performance and mechanism
Creators: name: Ahmed, Zubair
name: Wu, Pingxiao
name: Wu, Jiayan
name: Lu, Bingxin
name: Abbasi, Sikandar Ali
name: Rehman, Saeed
name: Li, Yihao
name: Shang, Zhongbo
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biophysics
subject: Biochemistry
classificationCode: 29999
subject: Physical Sciences not elsewhere classified
classificationCode: 59999
subject: Environmental Sciences not elsewhere classified
classificationCode: 39999
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
classificationCode: 69999
subject: Biological Sciences not elsewhere classified

description: Lead and cadmium are toxic to human, animal, and plant health; they enhance oxidative stress indirectly while simultaneously acting through other toxicodynamic mechanisms. In this study, pristine vermiculite (VER) was functionalized with butylamine (BUT) and a novel organoclay (BUT-VER) adsorbent material was produced for simultaneous removal of Pb(II) and Cd(II) in aquatic medium. The adsorbents were characterized by spectroscopic, microscopic, spectrometric, and potentiometric techniques. The adsorption affecting parameters, including pH, time, initial concentration, temperature, and co-existing cations were investigated and optimized. The kinetic data results were in better agreement with pseudo-second-order (PSO) model (R2 > 0.992). Multiple isotherm models were used to study the adsorption system and results showed that adsorption was monolayer. The BUT-VER showed an improvement in adsorption capacity in a single system (Pb(II): from 134.2 to 160.6 mg g−1) and (Cd(II): from 51.1 to 58.9 mg g−1) while in binary system (Pb(II): from 107.3 to 114.5 mg g−1) and (Cd(II): from 33.7 to 39.7 mg g−1), respectively. Furthermore, BUT-VER was tested in real river water and removed efficiency of >99% was achieved in just 1 h. The dominant mechanisms were electrostatic attraction and complexation. BUT-VER was regenerated for five consecutive cycles and showed >90% removal efficiency. These findings suggest that the proposed inexpensive adsorbent has the potential for practical applications of toxic metals removal from water.
Double-difference adjoint seismic tomography
Creators: name: Yuan, Yanhua O.
name: Simons, Frederik J.
name: Tromp, Jeroen
Publisher: name: arXiv
Year: 2016
Subjects: subject: Geophysics (physics.geo-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We introduce a `double-difference' method for the inversion for seismic wavespeed structure based on adjoint tomography. Differences between seismic observations and model predictions at individual stations may arise from factors other than structural heterogeneity, such as errors in the assumed source-time function, inaccurate timings, and systematic uncertainties. To alleviate the corresponding nonuniqueness in the inverse problem, we construct differential measurements between stations, thereby reducing the influence of the source signature and systematic errors. We minimize the discrepancy between observations and simulations in terms of the differential measurements made on station pairs. We show how to implement the double-difference concept in adjoint tomography, both theoretically and in practice. We compare the sensitivities of absolute and differential measurements. The former provide absolute information on structure along the ray paths between stations and sources, whereas the latter explain relative (and thus higher-resolution) structural variations in areas close to the stations. Whereas in conventional tomography a measurement made on a single earthquake-station pair provides very limited structural information, in double-difference tomography one earthquake can actually resolve significant details of the structure. The double-difference methodology can be incorporated into the usual adjoint tomography workflow by simply pairing up all conventional measurements; the computational cost of the necessary adjoint simulations is largely unaffected. Rather than adding to the computational burden, the inversion of double-difference measurements merely modifies the construction of the adjoint sources for data assimilation.
description: 21 pages, 17 figures, accepted for publication by the Geophysical Journal International
Rashba spin-orbit coupling enhanced magnetoresistance in junctions with one ferromagnet
Creators: name: Shen, Chenghao
name: Cai, Ranran
name: Matos-Abiague, Alex
name: Han, Wei
name: Han, Jong E.
name: Zutic, Igor
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We explain how Rashba spin-orbit coupling (SOC) in a two-dimensional electron gas (2DEG), or in a conventional $s$-wave superconductor, can lead to a large magnetoresistance even with one ferromagnet. However, such enhanced magnetoresistance is not generic and can be nonmonotonic and change its sign with Rashba SOC. For an in-plane rotation of magnetization, it is typically negligibly small for a 2DEG and depends on the perfect transmission which emerges from a spin-parity-time symmetry of the scattering states, while this symmetry is generally absent from the Hamiltonian of the system. The key difference from considering the normal-state magnetoresistance is the presence of the spin-dependent Andreev reflection at superconducting interfaces. In the fabricated junctions of quasi-2D van der Waals ferromagnets with conventional $s$-wave superconductors (Fe$_{0.29}$TaS$_2$/NbN) we find another example of enhanced magnetoresistance where the presence of Rashba SOC reduces the effective interfacial strength and is responsible for an equal-spin Andreev reflection. The observed nonmonotonic trend in the out-of-plane magnetoresistance with the interfacial barrier is an evidence for the proximity-induced equal-spin-triplet superconductivity.
description: This work is submitted to the special issue of Phys. Rev. B dedicated to Professor Emmanuel Rashba
Manufacturing of high strength and high conductivity copper with laser powder bed fusion
Creators: name: Liu, Yingang
name: Zhang, Jingqi
name: Niu, Ranming
name: Bayat, Mohamad
name: Zhou, Ying
name: Yin, Yu
name: Tan, Qiyang
name: Liu, Shiyang
name: Hattel, Jesper Henri
name: Li, Miaoquan
name: Huang, Xiaoxu
name: Cairney, Julie
name: Chen, Yi-Sheng
name: Easton, Mark
name: Hutchinson, Christopher
name: Zhang, Ming-Xing
Publisher: name: Zenodo
Year: 2024
Subjects: Additive manufacturing
laser powder bed fusion
Copper

description: Additive manufacturing (AM), known as 3D printing, enables rapid fabrication of geometrically complex copper (Cu) components for electrical conduction and heat management applications. However, pure Cu or Cu alloys produced by 3D printing often suffer from either low strength or low conductivity at room and elevated temperatures. Here, we demonstrate a design strategy for 3D printing of high strength, high conductivity Cu by uniformly dispersing a minor portion of lanthanum hexaboride (LaB6) nanoparticles in pure Cu through laser powder bed fusion (L-PBF). We show that trace additions of LaB6 to pure Cu result in an improved L-PBF processability, an enhanced strength, and improved thermal stability, all whilst maintaining a high conductivity.  The presented strategy could expand the applicability of 3D-printed Cu components to more demanding conditions where high strength, high conductivity, and thermal stability are required.
description: Funding provided by: Australian Research CouncilCrossref Funder Registry ID: https://ror.org/05mmh0f86Award Number: DP210103162
description: These datasets were collected at University of Queensland (Australia) from 2021 to 2023.

Details for each dataset are provided in the README file.
Extensions of CM elliptic curves and orbit counting on the projective line
Creators: name: Rosen, Julian
name: Shnidman, Ariel
Publisher: name: arXiv
Year: 2016
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 13D07 (primary) 14K22, 30F40 (secondary)

description: There are several formulas for the number of orbits of the projective line under the action of subgroups of $GL_2$. We give an interpretation of two such formulas in terms of the geometry of elliptic curves, and prove a more general formula for a large class of congruence subgroups of Bianchi groups. Our formula involves the number of walks on a certain graph called an isogeny volcano. Underlying our results is a complete description of the group of extensions of a pair of CM elliptic curves, and of a pair of lattices in a quadratic field.
description: 15 pages, 3 figures
Predicting the wall-shear stress and wall pressure through convolutional neural networks
Creators: name: Balasubramanian, Arivazhagan G.
name: Guastoni, Luca
name: Schlatter, Philipp
name: Azizpour, Hossein
name: Vinuesa, Ricardo
Publisher: name: arXiv
Year: 2023
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Machine Learning (stat.ML)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: The objective of this study is to assess the capability of convolution-based neural networks to predict wall quantities in a turbulent open channel flow. The first tests are performed by training a fully-convolutional network (FCN) to predict the 2D velocity-fluctuation fields at the inner-scaled wall-normal location $y^{+}_{\rm target}$, using the sampled velocity fluctuations in wall-parallel planes located farther from the wall, at $y^{+}_{\rm input}$. The predictions from the FCN are compared against the predictions from a proposed R-Net architecture. Since the R-Net model is found to perform better than the FCN model, the former architecture is optimized to predict the 2D streamwise and spanwise wall-shear-stress components and the wall pressure from the sampled velocity-fluctuation fields farther from the wall. The dataset is obtained from DNS of open channel flow at $Re_τ = 180$ and $550$. The turbulent velocity-fluctuation fields are sampled at various inner-scaled wall-normal locations, along with the wall-shear stress and the wall pressure. At $Re_τ=550$, both FCN and R-Net can take advantage of the self-similarity in the logarithmic region of the flow and predict the velocity-fluctuation fields at $y^{+} = 50$ using the velocity-fluctuation fields at $y^{+} = 100$ as input with about 10% error in prediction of streamwise-fluctuations intensity. Further, the R-Net is also able to predict the wall-shear-stress and wall-pressure fields using the velocity-fluctuation fields at $y^+ = 50$ with around 10% error in the intensity of the corresponding fluctuations at both $Re_τ = 180$ and $550$. These results are an encouraging starting point to develop neural-network-based approaches for modelling turbulence near the wall in large-eddy simulations.
description: 33 pages, 10 figures. arXiv admin note: substantial text overlap with arXiv:2107.07340
Development of Nylon 6 Nanofibers Modified with Cyanex-272 for Cobalt Recovery
Creators: name: Chaves, Rebeca Mello
name: Power, Nicholas P.
name: Collinson, Simon Robert
name: Tanabe, Eduardo Hiromitsu
name: Bertuol, Daniel Assumpção
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biochemistry
subject: Space Science
subject: Biotechnology
subject: Evolutionary Biology
subject: FOS: Biological sciences
classificationCode: 59999
subject: Environmental Sciences not elsewhere classified
classificationCode: 39999
subject: Chemical Sciences not elsewhere classified
subject: Ecology

description: With a worldwide ever increasing demand for metals, particularly for the manufacture of electronics and batteries, there is not only a concurrent need to recover these materials from their subsequent waste streams but also a need to make advancements to do this via development of more efficient and eco-friendly processes for metal recovery; solid-phase extraction can be considered a promising alternative to conventional processes. This work studied the production of novel nanofibers modified with Cyanex 272 and their application in the recovery of cobalt present in aqueous solution The nanofibers produced by forcespinning were characterized by SEM, FT-IR, and TGA and the extraction of cobalt was evaluated by variation of the pH, solid:liquid (S:L) ratio, extraction time and Cyanex 272 content in the nanofibers. The best extraction efficiency was 99.96%, achieved under the following conditions: pH 8; (S:L) ratio of 1:200 ; 25% of Cyanex 272; Extraction time of 60 min. The maximum extraction capacity obtained was 15.46 mg Co/g of nanofiber and 70.15 mg Co/g of extractor. In successive reuse cycles, the results demonstrated that the extraction efficiency was maintained at over 85%. The findings showed that Nylon 6/Cyanex 272 nanofibers are a new robust and promising material for the recovery of heavy metals from aqueous solution, confirming that nanofibers have an efficiency similar to conventional liquid-liquid extraction, without the disadvantage of volatile organic compounds emissions generated by the use of organic diluents.
Temporal Profile of Reactive Astrocytes after Ischemic Stroke in Rats
Creators: name: Stadler, Justin
name: Schurr, Harrison
name: Doyle, David
name: Garmo, Lucas
name: Srinageshwar, Bhairavi
name: Spencer, Marc R.
name: B. Petersen, Robert
name: Dunbar, Gary L.
name: Rossignol, Julien
Publisher: name: Health Research Alliance
Year: 2022
Subjects: Central nervous system

description: Publication of results funded by AIREA AHA grant to describe the temporal profile of GFAP immunoreactivity following a 90-min MCAo ischemic stroke in rats
Bifurcation cascade, self-similarity and duality in the 3-rotor problem
Creators: name: Krishnaswami, Govind S
name: Yadav, Ankit
Publisher: name: arXiv
Year: 2023
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Mathematical Physics (math-ph)
subject: Dynamical Systems (math.DS)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 37G15 (Primary) 37J45 (Secondary)

description: The three-rotor system concerns equally massive point particles moving on a circle subject to attractive cosine potentials of strength $g$. The quantum theory models chains of coupled Josephson junctions. Classically, it displays order-chaos-order behavior with increasing energy $E$ along with a seemingly globally chaotic phase for $5.33g \lesssim E \lesssim 5.6g$. It is also known to admit pendulum and isosceles breather families of periodic orbits at all energies. While pendula display a doubly infinite sequence of stability transitions accumulating at their libration to rotation threshold at $E = 4g$, breathers undergo only one stability transition. Here, we show that these stability transitions are associated to forward and reverse fork-like isochronous and period-doubling bifurcations. The new family of periodic orbits born at each of these bifurcations is found using an efficient search algorithm starting from a transverse perturbation to the parent orbit. The graphs of stability indices of various classes of orbits born at pendulum bifurcations meet at $E = 4g$ forming `fans'. The transitions in the librational and rotational phases are related by an asymptotic duality between bifurcation energies and shapes of newly born periodic orbits. The latter are captured by solutions to a Lamé equation. We also find and numerically validate values of scaling constants for self-similarity in (a) stability indices of librational and rotational pendula and (b) shapes of newly born orbits as $E \to 4g$. Finally, we argue that none of the infinitely many families of periodic orbits we have found is stable for $5.33g \lesssim E \lesssim 5.6g$, providing further evidence for global chaos in this energy band.
description: 20 pages, 42 figure files
Sterile Neutrino Dark Matter with Supersymmetry
Creators: name: Shakya, Bibhushan
name: Wells, James D.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Sterile neutrino dark matter, a popular alternative to the WIMP paradigm, has generally been studied in non-supersymmetric setups. If the underlying theory is supersymmetric, we find that several interesting and novel dark matter features can arise. In particular, in scenarios of freeze-in production of sterile neutrino dark matter, its superpartner, the sterile sneutrino, can play a crucial role in early Universe cosmology as the dominant source of cold, warm, or hot dark matter, or of a subdominant relativistic population of sterile neutrinos that can contribute to the effective number of relativistic degrees of freedom Neff during Big Bang nucleosynthesis.
description: 6 pages, 4 figures
Simultaneous removal of antimony and arsenic by nano-TiO2-crosslinked chitosan (TA-chitosan) beads
Creators: name: Long, Xiaojing
name: Wang, Tianning
name: He, Mengchang
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biophysics
subject: Space Science
classificationCode: 29999
subject: Physical Sciences not elsewhere classified
subject: Pharmacology
classificationCode: 59999
subject: Environmental Sciences not elsewhere classified
classificationCode: 39999
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
classificationCode: 69999
subject: Biological Sciences not elsewhere classified
subject: Inorganic Chemistry
subject: FOS: Chemical sciences

description: Antimony (Sb) and arsenic (As), carcinogenic and toxic elements, cause environmental pollution, in addition, the different chemical properties of Sb and As makes them difficult to co-removal. In this study, we incorporation of nano-TiO2 in the chitosan matrix to synthesized an efficient adsorption material nano-titania-crosslinked chitosan (TA-chitosan) beads, which was used to simultaneous removal of Sb and As from aqueous solution. TA-chitosan possesses a robust high removal performance for Sb and As under weakly acidic and neutral conditions, however, the removal is significantly inhibited under alkaline pH values. The adsorption kinetics of Sb and As on TA-chitosan conformed to the pseudo-second-order model, indicating that the removal of Sb and As was a chemical adsorption process. The adsorption isotherms of Sb(III/V) and As(III/V) on TA-chitosan follow the Langmuir model, and their maximum adsorption capacities are 70.19 mg·g-1, 25.32 mg·g-1, 64.52 mg·g-1 and 102.89 mg·g-1, respectively. The zeta potential showed that the surface of TA-chitosan was negatively charged over the full pH range upon Sb and As adsorption, demonstrating that negatively charged inner-sphere complexes were formed on TA-chitosan. This work may also provide a new perspective in titanium-chitosan material synthesis and heavy metal ions co-removal.
Entropic measures of Rydberg-like harmonic states
Creators: name: Dehesa, J. S.
name: Toranzo, I. V.
name: Puertas-Centeno, D.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The Shannon entropy, the desequilibrium and their generalizations (Rényi and Tsallis entropies) of the three-dimensional single-particle systems in a spherically-symmetric potential $V(r)$ can be decomposed into angular and radial parts. The radial part depends on the analytical form of the potential, but the angular part does not. In this paper we first calculate the angular entropy of any central potential by means of two analytical procedures. Then, we explicitly find the dominant term of the radial entropy for the highly energetic (i.e., Rydberg) stationary states of the oscillator-like systems. The angular and radial contributions to these entropic measures are analytically expressed in terms of the quantum numbers which characterize the corresponding quantum states and, for the radial part, the oscillator strength. In the latter case we use some recent powerful results of the information theory of the Laguerre polynomials and spherical harmonics which control the oscillator-like wavefunctions.
description: Accepted in International Journal of Quantum Chemistry
Broadband low-noise photodetector for Pound-Drever-Hall laser stabilization
Creators: name: Potnis, Shreyas
name: Vutha, Amar C.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: The Pound-Drever-Hall laser stabilization technique requires a fast, low-noise photodetector. We present a simple photodetector design that uses a transformer as an intermediary between a photodiode and cascaded low-noise radio-frequency amplifiers. Our implementation using a silicon photodiode yields a detector with 50 MHz bandwidth, gain $> 10^5$ V/A, and input current noise $< 4$ pA/$\sqrt{\mathrm{Hz}}$, allowing us to obtain shot-noise-limited performance with low optical power.
description: submitted to Review of Scientific Instruments
Study of Distractors in Neural Models of Code
Creators: name: Rabin, Md Rafiqul Islam
name: Hussain, Aftab
name: Suneja, Sahil
name: Alipour, Mohammad Amin
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (cs.LG)
subject: Programming Languages (cs.PL)
subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Finding important features that contribute to the prediction of neural models is an active area of research in explainable AI. Neural models are opaque and finding such features sheds light on a better understanding of their predictions. In contrast, in this work, we present an inverse perspective of distractor features: features that cast doubt about the prediction by affecting the model's confidence in its prediction. Understanding distractors provide a complementary view of the features' relevance in the predictions of neural models. In this paper, we apply a reduction-based technique to find distractors and provide our preliminary results of their impacts and types. Our experiments across various tasks, models, and datasets of code reveal that the removal of tokens can have a significant impact on the confidence of models in their predictions and the categories of tokens can also play a vital role in the model's confidence. Our study aims to enhance the transparency of models by emphasizing those tokens that significantly influence the confidence of the models.
description: The 1st International Workshop on Interpretability and Robustness in Neural Software Engineering, Co-located with ICSE (InteNSE'23)
Computerized clinical decision system and mobile application with expert support to optimize management of vertigo in primary care : study protocol for a pragmatic cluster-randomized controlled trial
Creators: name: Filippopulos, Filipp M
name: Huppert, Doreen
name: Brandt, Thomas
name: Hermann, Margit
name: Franz, Mareike
name: Fleischer, Steffen
name: Grill, Eva
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2020
Subjects: subject: 610

description: Vertigo and dizziness are amongst the most common symptoms in medicine and often have a major impact on activities of daily life. Although many causes of vertigo and dizziness can easily be recognized, patients often receive inappropriate and ineffective treatment. The reasons for this are various. Because vertigo/dizziness is an interdisciplinary symptom and there is a lack of standardised diagnostic tools, it is easy to lose the overview of the possible differential diagnoses. There is evidence though, that the management of patients with vertigo/dizziness can be optimized using standardized care pathways with digital support. The present study (within the framework of “PoiSe—prevention, online feedback, and interdisciplinary therapy of acute vestibular syndromes by e-health”) aims to evaluate the implementation of a program with several interlocking components. The three main components are a computerized clinical decision system, a mobile application, a counselling and interdisciplinary educational program developed by the German Center for Vertigo and Balance Disorders (DSGZ). The study is a cluster-randomized controlled trial with a parallel-group design, as well as a detailed process evaluation. Clusters comprise of primary care physician practices in Bavaria, Germany. In the scope of the study the effectiveness, acceptability and efficiency of the intervention will be evaluated. It is anticipated that the intervention will improve the quality and efficiency of the management of dizzy patients. A higher diagnostic accuracy, optimized treatment, and disease progression monitoring is expected to improve patient-relevant outcomes and reduce health-care costs.
Development of alternative disposals for waste rice husk and dredged harbor sediment by sintering as lightweight aggregates
Creators: name: Lim, Yee Cheng
name: Chen, Chih-Feng
name: Chen, Chiu-Wen
name: Dong, Cheng-Di
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Space Science
subject: Medicine
classificationCode: 59999
subject: Environmental Sciences not elsewhere classified
classificationCode: 39999
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
classificationCode: 69999
subject: Biological Sciences not elsewhere classified
subject: Computational Biology

description: This study developed the alternative disposals for dredged harbor sediments by co-sintering with waste rice husk into lightweight aggregates (LWA) to benefit resource sustainability and waste valorization. The effects of rice husk addition and sintering temperature on LWA performances such as water absorption, particle density, crushing strength, weight loss, volume shrinkage, and open porosity were investigated. The key parameters (e.g. C/Fe ratio in raw materials) controlling the LWA performances and engineering applications were determined. Results showed that dredged harbor sediments could be made into suitable LWA for engineering applications from the controlled rice husk addition and sintering temperature. The addition of rice husk led to lower LWA particle density, but raised water absorption and reduced crushing strength. The increase of sintering temperature reduced water absorption and improved crushing strength. The aggregates with 10–15% rice husk, sintered at 1150 °C had appropriate particle density (1.60–1.73 g/cm3), water absorption (11.8–16.6%), and crushing strength (6.0–10.6 MPa), which could be suitable for lightweight concrete applications. Low water-soluble chloride and heavy metals leachabilities aligned with Taiwan’s regulatory standards for concrete aggregates. Co-treating waste rice husk and dredged harbor sediment into LWA can benefit the waste reduction and circular economy, and reduce the environmental impacts associated with their disposals.
RG Flows and Stability in Defect Field Theories
Creators: name: Bolla, I. Carreño
name: Rodriguez-Gomez, D.
name: Russo, J. G.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We investigate defects in scalar field theories in four and six dimensions in a double-scaling (semiclassical) limit, where bulk loops are suppressed and quantum effects come from the defect coupling. We compute $β$-functions up to four loops and find that fixed points satisfy dimensional disentanglement -- i.e. their dependence on the space dimension is factorized from the coupling dependence -- and discuss some physical implications. We also give an alternative derivation of the $β$ functions by computing systematic logarithmic corrections to the Coulomb potential. In this natural scheme, $β$ functions turn out to be a gradient of a `Hamiltonian' function ${\cal H}$. We also obtain closed formulas for the dimension of scalar operators and show that instabilities do not occur for potentials bounded from below. The same formulas are reproduced using Rigid Holography.
description: 35 pages, 1 figure; v4: typo corrected in eq (3.13)
General relativistic simulations of compact binary mergers as engines of short gamma-ray bursts
Creators: name: Paschalidis, Vasileios
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Black hole - neutron star (BHNS) and neutron star - neutron star (NSNS) binaries are among the favored candidates for the progenitors of the black hole - disk systems that may be the engines powering short-hard gamma ray bursts. After almost two decades of simulations of binary NSNSs and BHNSs in full general relativity we are now beginning to understand the ingredients that may be necessary for these systems to launch incipient jets. Here, we review our current understanding, and summarize the surprises and lessons learned from state-of-the-art (magnetohydrodynamic) simulations in full general relativity of BHNS and NSNS mergers as jet engines for short-hard gamma-ray bursts.
description: 32 pages, 7 figures, arXiv version of this review will be updated on a regular basis, comments welcome
Development of alternative disposals for waste rice husk and dredged harbor sediment by sintering as lightweight aggregates
Creators: name: Lim, Yee Cheng
name: Chen, Chih-Feng
name: Chen, Chiu-Wen
name: Dong, Cheng-Di
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Space Science
subject: Medicine
classificationCode: 59999
subject: Environmental Sciences not elsewhere classified
classificationCode: 39999
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
classificationCode: 69999
subject: Biological Sciences not elsewhere classified
subject: Computational Biology

description: This study developed the alternative disposals for dredged harbor sediments by co-sintering with waste rice husk into lightweight aggregates (LWA) to benefit resource sustainability and waste valorization. The effects of rice husk addition and sintering temperature on LWA performances such as water absorption, particle density, crushing strength, weight loss, volume shrinkage, and open porosity were investigated. The key parameters (e.g., C/Fe ratio in raw materials) controlling the LWA performances and engineering applications were determined. Results showed that dredged harbor sediments could be made into suitable LWA for engineering applications from the controlled rice husk addition and sintering temperature. The addition of rice husk led to lower LWA particle density, but raised water absorption and reduced crushing strength. The increase of sintering temperature reduced water absorption and improved crushing strength. The aggregates with 10–15% rice husk, sintered at 1150 °C had appropriate particle density (1.60–1.73 g/cm3), water absorption (11.8–16.6%), and crushing strength (6.0–10.6 MPa), which could be suitable for lightweight concrete applications. Low water-soluble chloride and heavy metals leachabilities aligned with Taiwan’s regulatory standards for concrete aggregates. Co-treating waste rice husk and dredged harbor sediment into LWA can benefit the waste reduction and circular economy, and reduce the environmental impacts associated with their disposals.
Neural complexity -- Statistical-mechanical approach of human electroencephalograms
Creators: name: Abramov, Dimitri Marques
name: Tsallis, Constantino
name: Lima, Henrique Santos
Publisher: name: arXiv
Year: 2023
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Medical Physics (physics.med-ph)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: The brain is a complex system whose understanding enables potentially deeper approaches to mental phenomena. Dynamics of wide classes of complex systems have been satisfactorily described within $q$-statistics, a current generalization of Boltzmann-Gibbs (BG) statistics. Here, we study human electroencephalograms of typical human adults (EEG), very specifically their inter-occurrence times across an arbitrarily chosen threshold of the signal (observed, for instance, at the midparietal location in scalp). The distributions of these inter-occurrence times differ from those usually emerging within BG statistical mechanics. They are instead well approached within the $q$-statistical theory, based on non-additive entropies characterized by the index $q$. The present method points towards a suitable tool for quantitatively accessing brain complexity, thus potentially opening useful studies of the properties of both typical and altered brain physiology.