cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Magnetic feedback control of 2/1 locked modes in tokamaks
Creators: Choi, Wilkie
Publisher: name: Columbia University
Year: 2017
Subjects: Plasma (Ionized gases)
Physics
Tokamaks
Magnetism

description: This thesis presents simulation and experimental work on feedback control of the \emph{phase} of non-rotating magnetic islands (locked modes) in the DIII-D tokamak, as well as its application to synchronized modulated current drive, for stability studies and control of the locked mode \emph{amplitude}. A numerical model has been developed to predict mode dynamics under the effect of various electromagnetic torques, due to the interaction with induced currents in the wall, error fields, and applied resonant magnetic perturbations (RMPs). This model was adapted to predict entrainment capabilities on ITER, suggesting that small (5~cm) islands can be entrained in the sub-10~Hz frequency range. Simulations and subsequent experiments on DIII-D demonstrated a novel technique to prevent locked modes. Preemptive entrainment applies a rotating RMP before a neoclassical tearing mode fully decelerates such that it will be entrained by the RMP and mode rotation can be sustained. A feedback control algorithm was designed and implemented on DIII-D to offer the ability to prescribe any toroidal phase to the mode and to allow for smoother entrainment. Experimental results confirmed simulation predictions of successful entrainment, and demonstrated one possible application to electron cyclotron current drive (ECCD). Feedback-controlled mode rotation and pre-programmed ECCD modulation were synchronized at DIII-D. This allowed a fine control of the ECCD deposition relative to the island O-point. Experiments exhibited a modulation of the saturated island width, in agreement with time-dependent modeling of the modified Rutherford equation. This work contributes to control and suppression of locked modes in future devices, including ITER.
Topology of ferroelectric phase diagrams with morphotropic phase boundary and their piezoelectric properties
Creators: name: Tian, Ben
name: Ke, Xiaoqin
name: Hong, Zhengkai
name: Chen, Zhang
name: Zhou, Chao
name: Wang, Yu
name: Yang, Sen
Publisher: name: Taylor & Francis
Year: 2022
Subjects: Biophysics
Biochemistry
Physical Sciences not elsewhere classified
Medicine
Neuroscience
Chemical Sciences not elsewhere classified
Biological Sciences not elsewhere classified
Information Systems not elsewhere classified
Cancer

description: Ferroelectric materials at morphotropic phase boundary (MPB) exhibit large piezoelectric coefficients and thus are widely used as piezoelectric actuators and sensors. Three different phase diagram topologies have been reported in various ferroelectric MPB systems: one with a cubic(C)-tetragonal(T)-orthorhombic(O)-rhombohedral(R) quadruple point; another with a C-T-R triple point and the other with a C-T-R along with a T-O-R triple point. However, it is unclear which phase diagram topology would give the best piezoelectric property. Here in this work, we obtain the above three different MPB phase diagram topologies by Landau free energy. It was found that among the three phase diagram topologies, the one with a T-O-R triple point exhibits superior piezoelectric property at the T-O-R triple point because of the small polarization anisotropy required by the simultaneous thermodynamic equilibrium of three ferroelectric phases. This work could guide the design of piezoelectric materials.
Magnetic Fields in the Interstellar Medium
Creators: Clark, Susan E.
Publisher: name: Columbia University
Year: 2017
Subjects: Astrophysics
Astronomy
Physics
Interstellar matter
Interstellar magnetic fields

description: The interstellar medium – the space between the stars in our Galaxy – is multiphase, turbulent, and magnetic. Magnetism in the interstellar medium is difficult to observe and to simulate, and the study of interstellar magnetic fields is riddled with open questions. In this Thesis we make progress in several important areas. We use analytic theory, simulations, and observations to advance our understanding of an important plasma instability, of the diffuse neutral medium, and of prospects for uncovering cosmic inflation.
      We take an unusual approach to the study of the magnetorotational instability, the mechanism thought to be the primary driver of turbulence and angular momentum transport in astrophysical accretion disks. We conduct a weakly nonlinear analysis of the instability in several important geometries, and derive an envelope equation that governs the evolution of the system on long length- and timescales. We show that the saturated state of the magnetorotational instability may itself be unstable on these large spatial and temporal scales, and we demonstrate that the character of these instabilities will depend on the geometry of the background magnetic field. We posit a possible new saturation mechanism for the magnetorotational instability in a local geometry, when a particular nonideal effect is considered.
      We derive new insights into the diffuse interstellar medium, where we present the discovery that thin, linear neutral hydrogen structures are ubiquitous in the cold neutral medium. We demonstrate that these linear features are extremely well aligned with the interstellar magnetic field, as traced by both starlight polarization and polarized dust emission. We discuss the implications of this discovery for cosmological studies. A major goal of modern cosmology is the detection of a particular signature in the polarized cosmic microwave background that would be direct evidence for inflation. This goal has thus far been thwarted by the polarized foreground emission from magnetically aligned interstellar dust grains. We demonstrate that the alignment of neutral hydrogen with the interstellar magnetic field can be used to produce higher-fidelity maps of the foreground polarization field, and we present and test a new Bayesian method for constructing improved foreground maps.
Jet cross sections at the LHC and the quest for higher precision
Creators: name: Bellm, Johannes
name: Buckley, Andy
name: Chen, Xuan
name: Ridder, Aude Gehrmann-De
name: Gehrmann, Thomas
name: Glover, Nigel
name: Huss, Alexander
name: Pires, Joao
name: Höche, Stefan
name: Huston, Joey
name: Kuttimalai, Silvan
name: Plätzer, Simon
name: Re, Emanuele
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We perform a phenomenological study of $Z$ plus jet, Higgs plus jet and di-jet production at the Large Hadron Collider. We investigate in particular the dependence of the leading jet cross section on the jet radius as a function of the jet transverse momentum. Theoretical predictions are obtained using perturbative QCD calculations at the next-to and next-to-next-to-leading order, using a range of renormalization and factorization scales. The fixed order predictions are compared to results obtained from matching next-to-leading order calculations to parton showers. A study of the scale dependence as a function of the jet radius is used to provide a better estimate of the scale uncertainty for small jet sizes. The non-perturbative corrections as a function of jet radius are estimated from different generators.
description: 23 pages, 19 figures
A Rational Surgery Formula for the LMO Invariant
Creators: name: Bar-Natan, Dror
name: Lawrence, Ruth
Publisher: name: arXiv
Year: 2000
Subjects: subject: Geometric Topology (math.GT)
subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics
subject: 57M27

description: We write a formula for the LMO invariant of a rational homology sphere presented as a rational surgery on a link in S^3. Our main tool is a careful use of the Aarhus integral and the (now proven) "Wheels" and "Wheeling" conjectures of B-N, Garoufalidis, Rozansky and Thurston. As steps, side benefits and asides we give explicit formulas for the values of the Kontsevich integral on the Hopf link and on Hopf chains, and for the LMO invariant of lens spaces and Seifert fibered spaces. We find that the LMO invariant does not separate lens spaces, is far from separating general Seifert fibered spaces, but does separate Seifert fibered spaces which are integral homology spheres.
description: LaTeX2e, 24 pages, many figures
The Tournai Marble Sculptures of Lewes Priory
Creators: name: Anderson, Freda
Publisher: name: Archaeology Data Service
Year: 2021

description: Sussex Archaeological Collections, 122, 85-100
description: The Cluniac Priory of St. Pancras at Lewes was founded directly from Cluny, between 1077 and 1080, by William of Warenne I and his wife Gundrada. It grew to be one of the greatest monasteries in the south-east. The Cluniacs had a reputation for magnificence and Lewes was probably no exception: the east end of its church was even a copy of that at Cluny itself Surviving Priory sculptures, of which the Tournai marbles are a part, give an idea of the size, variety and artistic quality that past vandalism has destroyed. The Tournai pieces are an impressive group, yet little work has been done on them. There have been recent finds, one of which is extremely important. An attempt is made in this paper to deal with problems relating to the lithology of the stone, the place of manufacture of the carvings, their function in the Priory and their stylistic motifs. In particular, W. H. Godfrey's view that all the pieces came from the independent lavatorium off the cloister arcade is queried, and a new hypothesis suggested. The authorship of Gundrada's tombstone is discussed in relation to the Priory workshop for the existence of which, working in Tournai stone, good evidence is produced.
Magnetic Resonance Imaging Applications of Pseudo-Random Amplitude Modulation
Creators: Zou, Xiaowei
Publisher: name: Columbia University
Year: 2014
Subjects: Biomedical engineering

description: Magnetic resonance imaging (MRI) is a medical imaging technique which can provide fine tissue contrast with relatively high image resolution in human. Besides the image quality, imaging speed is the other major concern in modern MRI, especially in human experiments where sufficient volumetric coverage is necessary. One approach to increase imaging speed is increasing image acquisition speed so that the same amount of volumetric coverage can be achieved within shorter time under conventional experiment paradigms.
      In this dissertation, the application of pseudo-random amplitude modulation (PRAM) in MRI was explored to increase imaging speed by designing more efficient experiment paradigms for the human brain. Two relatively slow MRI studies were investigated. The first study was measuring longitudinal relaxation time. A novel method "Relaxation by Amplitude Modulation" (RLXAM) was invented. The RLXAM modulation code can be chosen from a large family of binary sequences. PRAM is a specific implementation using the maximum length sequence, also known as pseudo-random sequence. The other study was measuring transit time distribution in arterial spin labeling. The application of PRAM in transit time measurement was reported before on a 3T Philips Acheiva scanner using a single-slice protocol with standard gradient echo acquisition. The original theory was extended and multi-slice sequences with two different acquisition strategies were developed on a 3T Siemens Trio scanner. Both methods were applied to both phantom and human to demonstrate the theories and evaluate their performance.
Field-portable quantitative lensless microscopy based on translated speckle illumination and sub-sampled ptychographic phase retrieval
Creators: name: Zhang, He
name: Bian, Zichao
name: Jiang, Shaowei
name: Liu, Jian
name: Song, Pengming
name: Zheng, Guoan
Publisher: name: arXiv
Year: 2019
Subjects: subject: Image and Video Processing (eess.IV)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: We report a compact, cost-effective and field-portable lensless imaging platform for quantitative microscopy. In this platform, the object is placed on top of an image sensor chip without using any lens. We use a low-cost galvo scanner to rapidly scan an unknown laser speckle pattern on the object. To address the positioning repeatability and accuracy issues, we directly recover the positional shifts of the speckle pattern based on the phase correlation of the captured images. To bypass the resolution limit set by the imager pixel size, we employ a sub-sampled ptychographic phase retrieval process to recover the complex object. We validate our approach using a resolution target, a phase target, and a biological sample. Our results show that accurate, high-quality complex images can be obtained from a lensless dataset with as few as ~10 images. We also demonstrate the reported approach to achieve a 6.4 mm by 4.6 mm field of view and a half pitch resolution of 1 miron. The reported approach may provide a quantitative lensless imaging strategy for addressing point-of-care, global-health, and telemedicine related challenges.
Additional file 2 of PretiMeth: precise prediction models for DNA methylation based on single methylation mark
Creators: name: Tang, Jianxiong
name: Zou, Jianxiao
name: Zhang, Xiaoran
name: Fan, Mei
name: Tian, Qi
name: Fu, Shuyao
name: Gao, Shihong
name: Fan, Shicai
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 2: Table S1. The comparison of prediction performance based on three independent test sets. Table S2. The prediction performance in WGBS data. Table S3. The number of all analyzed methylation loci and DMLs in each cancer. Table S4. The differentially methylated genes related to pan-cancer. Table S5. The number of normal and tumor samples for each cancer. Figure S1. The distribution of correlation coefficients for model loci and the candidate feature loci. Figure S2. The classification performance of 413,719 single-locus models on cross-validation. Figure S3. Scatter plotting the predicted methylation levels and the methylation levels profiled by 850 K technology in other samples of IMR90 and NA12878. Figure S4. The probe chr3:167293827 and chr5:2276656 showed significant hypomethylation (the methylation level of the locus in tumor samples were lower than those in normal samples) among all 13 cancers based on predicted methylation data. Figure S5. Annotations of the enhancer region we found.
Two-Directional Simultaneous Inference for High-Dimensional Models
Creators: name: Liu, Wei
name: Lin, Huazhen
name: Liu, Jin
name: Zheng, Shurong
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biophysics
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Physiology
subject: Biological Sciences not elsewhere classified
subject: Mathematical Sciences not elsewhere classified

description: This article proposes a general two-directional simultaneous inference (TOSI) framework for high-dimensional models with a manifest variable or latent variable structure, for example, high-dimensional mean models, high-dimensional sparse regression models, and high-dimensional latent factors models. TOSI performs simultaneous inference on a set of parameters from two directions, one to test whether the assumed zero parameters indeed are zeros and one to test whether exist zeros in the parameter set of nonzeros. As a result, we can better identify whether the parameters are zeros, thereby keeping the data structure fully and parsimoniously expressed. We theoretically prove that the single-split TOSI is asymptotically unbiased and the multi-split version of TOSI can control the Type I error below the prespecified significance level. Simulations are conducted to examine the performance of the proposed method in finite sample situations and two real datasets are analyzed. The results show that the TOSI method can provide more predictive and more interpretable estimators than existing methods.
Site-specific approach for setting water quality criteria for selenium : differences between lotic and lentic systems
Creators: name: Adams, William J.
name: Toll, John E.
name: Brix, K. V.
name: Tear, Lucinda Marie
name: DeForest, D. K.
Publisher: name: The University of British Columbia
Year: 2009

description: Results of an in-depth review of the literature indicates there are significant differences in the bioaccumulation of selenium by fishes and invertebrates from lotie (flowing) and lentic (standing) water bodies and that selenate is much less bioaccumulative than selenite. Bioaccumulation in fish is a factor of 10 or more higher in lentic systems as compared to lotic systems. These differences are a function of selenium's site-specific biogeochemical cycling. Further, we observed considerable variation in bird accumulation of selenium from site to site. To account for differences in bioaccumulation potential of selenium we developed a residue-based Bayesian Monte Carlo model to derive site-specific selenium water quality criteria protective offish and sensitive avian species. The approach uses data from a given site of interest to calibrate a model based on data from several other similar sites. When evaluating a specific site, the range of water and tissue concentrations is typically limited. This makes it difficult to use site-specific data to identify a water concentration sufficiently low that tissue concentrations do not exceed the tissue-effect threshold. Data from several similar sites provide a broader range of water and tissue residue concentrations that allow for an appropriate statistical extrapolation of the data to the site of interest. The Bayesian Monte Carlo model accounts for the significant site-to-site variability that exists in the relationship between water selenium and the mean tissue residue. In practice, data from similar sites are pooled to define a set of possible water and mean tissue residue relationships. This set of possible: relationships is then used with data from the site of interest to determine which relationships, from the set of possibilities, best fit the specific site. Once we have determined which set of possible relationship's fit the specific site, we extrapolate from the observed water concentration to a water concentration that results in a tissue residue concentration less than or equal to a chronic effect threshold. This value becomes the chronic water quality criterion.
C68: A non-IPR fullerene capable of binding extraordinary amounts of Cs atoms
Creators: name: Weippert, Jürgen
name: Seyithan Ulas
name: Waldt, Eugen
name: Amati, Matteo
name: Gregoratti, Luca
name: Kiskinova, Maya
name: Böttcher, Artur
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biophysics
subject: Biochemistry
subject: Space Science
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Cell Biology
subject: Pharmacology
subject: Evolutionary Biology
subject: FOS: Biological sciences
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

description: The non-IPR fulleride compound CsxC68 was investigated in analogy to previous experiments on CsxC58. While the vibrational properties as well as the electronic structure in the valence band range appear to be pretty similar to CsxC58, a striking difference could be observed by XPS and Photoemission Microscopy analysis: apparently, C68 forms different phases within a thick film including islands in which it is able to store more than 70 Cs atoms per fullerene cage and to keep these amounts even after annealing over 1100 K. This means that CsxC68 constitutes the highest alkali metal doping degree of any Fullerene species known so far. Spatially resolved photoemission analysis also revealed that the Cs-rich fulleride phases constitute a unique chemical state that has never been observed before.
The Hydrogen Atom in Combined Electric and Magnetic Fields with Arbitrary Mutual Orientations
Creators: name: Main, Jörg
name: Schwacke, Michael
name: Wunner, Günter
Publisher: name: arXiv
Year: 1997
Subjects: subject: Quantum Physics (quant-ph)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: For the hydrogen atom in combined magnetic and electric fields we investigate the dependence of the quantum spectra, classical dynamics, and statistical distributions of energy levels on the mutual orientation of the two external fields. Resonance energies and oscillator strengths are obtained by exact diagonalization of the Hamiltonian in a complete basis set, even far above the ionization threshold. At high excitation energies around the Stark saddle point the eigenenergies exhibit strong level repulsions when the angle between the fields is varied. The large avoided crossings occur between states with the same approximately conserved principal quantum number, n, and this intramanifold mixing of states cannot be explained, not even qualitatively, by conventional perturbation theory. However, it is well reproduced by an extended perturbation theory which takes into account all couplings between the angular momentum and Runge-Lenz vector. The large avoided crossings are interpreted as a quantum manifestation of classical intramanifold chaos. This interpretation is supported by both classical Poincaré surfaces of section, which reveal a mixed regular-chaotic intramanifold dynamics, and the statistical analysis of nearest-neighbor-spacing
description: two-column version, 10 pages, REVTeX, 10 figures, uuencoded, submitted to Rhys. Rev. A
Linearity of some low-complexity mapping class groups
Creators: name: Soroko, Ignat
Publisher: name: arXiv
Year: 2019
Subjects: subject: Geometric Topology (math.GT)
subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 57N05, 57M07

description: By analyzing known presentations of the pure mapping groups of orientable surfaces of genus $g$ with $b$ boundary components and $n$ punctures, we show that these groups are isomorphic to some groups related to the braid groups and the Artin group of type $D_4$ in the cases when $g=0$ with $b$ and $n$ arbitrary, and when $g=1$ and $b+n$ is at most $3$. As a corollary, we conclude that the pure mapping class groups are linear in these cases.
description: 7 pages, 3 figures
The Distribution of Two Types of Romano-British Coarse Pottery in the West Sussex Region
Creators: name: Hodder, Ian
Publisher: name: Archaeology Data Service
Year: 2021

description: Sussex Archaeological Collections, 112, 86-96
description: This article discusses the distribution of two types of Romano-British coarse pottery in the West Sussex region and attempts to show that its detailed examination with the aid of geographical models can generate hypotheses concerning marketing patterns.
Magneto-capillary dynamics of particles at curved liquid interfaces
Creators: Fei, Wenjie
Publisher: name: Columbia University
Year: 2019
Subjects: subject: Chemical engineering
subject: FOS: Chemical engineering
subject: Dynamics of a particle
subject: Magnetism
subject: Capillarity

description: The ability to manipulate colloidal particles with magnetic fields has profound applications both in industry and academic research ranging from automobile shock absorbers to robotic micro-surgery. Many of these applications use field gradients to generate forces on magnetic objects. Such methods are limited by the complexity of the required fields and by the magnitude of the forces generated. Spatially uniform fields only apply torques, but no forces, on magnetic particles. However, by coupling the particles' orientation and location, even static uniform fields can drive particle motion.
      We demonstrate this idea using particles adsorbed at curved liquid interfaces. We first review the intersection between active colloidal particles and (passive) particles at the fluid-fluid interface (chapter 1), followed by the introduction of magnetism, magnetic manipulation, and magnetic Janus particle fabrication techniques (chapter 2). In chapter 3, we use magnetic Janus particles with amphiphilic surface chemistry adsorbed at the spherical interface of water drop in decane as a model system to study particle response to a uniform field. Owing to capillary constraints, Janus particles adsorbed at curved interfaces will move in a uniform magnetic field to align their magnetic moment parallel to the applied field. This phenomenon is labeled as the magneto-capillary effect in this thesis. As explained quantitatively by a simple model, the effective magnetic force on the particle induced by static uniform field scales linearly with the curvature of the interface. For particles adsorbed on small droplets such as those found in emulsions, these magneto-capillary forces can far exceed those due to magnetic field gradients in both magnitude and range. The time-varying fields induce more complex particle motions that persist as long as the field is applied (chapter 4). Depending on the angle and frequency of a precessing field, particles orbit the drop poles or zig-zag around the drop equator. Magneto-capillary effects are not limited to Janus particles. Similar behaviors are observed in commercially available carbonyl iron particles. Periodic particle motion at the liquid interface can drive fluid flows inside the droplets, which may be useful for enhancing mass transport in droplet micro-reactors.
      The magneto-capillary effect at curved liquid interfaces offers new capabilities in magnetic manipulation: even static uniform fields can propel magnetic particles and the use of time-varying fields leads to steady particle motions of increasing complexity. These experimental demonstrations and the quantitative models that accompany them should both inspire and enable continued innovations in the use of magnetic fields to drive active processes in colloid and interface science. The final chapter highlights some specific directions for future work in this area.
Gauge theory of Riemann ellipsoids
Creators: name: Rosensteel, G.
name: Troupe, J.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Mathematical Physics (math-ph)
subject: Astrophysics (astro-ph)
subject: Differential Geometry (math.DG)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: The classical theory of Riemann ellipsoids is formulated naturally as a gauge theory based on a principal G-bundle ${\cal P}$. The structure group G=SO(3) is the vorticity group, and the bundle ${\cal P}=GL_+(3, R})$ is the connected component of the general linear group. The base manifold is the space of positive-definite real $3\times 3$ symmetric matrices, identified geometrically with the space of inertia ellipsoids. The bundle ${\cal P}$ is also a Riemannian manifold whose metric is determined by the kinetic energy. Nonholonomic constraints determine connections on the bundle. In particular, the trivial connection corresponds to rigid body motion, the natural Riemannian connection - to irrotational flow, and the invariant connection - to the falling cat. The curvature form determines the fluid's field tensor which is an analogue of the familiar Faraday tensor.
description: 37 pages, 3 eps figures
GFZ Global Ionospheric Disturbances Monitoring System: Initial Results and Effects of Scintillations on GNSS Signals at Different Frequencies
Creators: name: Nguyen, Chinh
Publisher: name: Zenodo
Year: 2024

description: The analysis of ionospheric disturbances is crucial for enhancing the precision of space geodetic applications. It has recently gained significant use in early warning systems and in evaluating the impact of natural disasters like geomagnetic storms, earthquakes, and tsunamis. To monitor ionospheric disturbances across various regions, the GFZ German Research Centre for Geosciences is establishing a global network of high-rate GNSS stations, operating at a frequency of 50 Hz. This report introduces this monitoring system and presents initial results from stations near the magnetic equator. It will focus on analyzing the impact of ionospheric disturbances on the quality of GNSS signal observations, including using statistical algorithms to compare the effects of scintillations on the GPS, GLONASS, and Galileo navigation systems operating at different frequencies (L1, L2, L5).
Field Study Aiming at Higher Grain Yield and Nutrient Use Efficiency in Wheat Grown in Alkaline Calcareous Soil
Creators: name: Irfan, Muhammad
Publisher: name: figshare
Year: 2019
Subjects: subject: 70302 Agronomy
subject: FOS: Agriculture, forestry and fisheries

description: Balanced fertilization ensures better crop production and optimizes the nutrient use efficiency, thereby sustaining yields on low input agro-ecosystems. A field study was conducted for two consecutive years to evaluate a recently evolved wheat genotype WBG-1-14 for grain yield and nutrient use efficiency. Three N and nine P2O5 levels were combined into 4:1, 4:2, and 4:3 N-P2O5 ratios to formulate ten treatments, including control. The analysis of pooled data revealed that the tested wheat genotype produced maximum grain and straw yield at 120-90 and 150-110 kg N-P2O5 ha-1, respectively. Maximum total N and P uptake were recorded in treatment having N-P2O5 at the rate of 150-110 kg ha-1 that were at par to treatment with 120-90 kg N-P2O5 ha-1. Various N and P efficiency indices, i.e., recovery efficiency (RE), agronomic efficiency (AE), physiological efficiency (PE) and internal utilization efficiency (IUE) were markedly influenced in response to varying regimes of both nutrients. The highest values for N efficiency indices (REN, AEN, PEN and IUEN) were recorded at 120-90, 90-70, 90-23 and 90-70 kg N-P2O5 ha-1, respectively. The maximum REP was observed at 150-40, while AEP, PEP and IUP were noticed higher at 90-23 kg N-P2O5 ha-1. Overall, the treatment 120-90 kg N-P2O5 ha-1 was found as the most suitable dose for higher grain yield production and nutrient accumulation by the tested genotype.
Structurable algebras and groups of type E_6 and E_7
Creators: name: Garibaldi, R. Skip
Publisher: name: arXiv
Year: 1998
Subjects: subject: Rings and Algebras (math.RA)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 17A30 (Primary) 11E72, 14L30, 17A40, 17B25, 17C30, 20G15 (Secondary)

description: It is well-known that every algebraic group of type F_4 is the automorphism group of an exceptional Jordan algebra, and that up to isogeny all groups of type ^1E_6 with trivial Tits algebras arise as the isometry groups of norm forms of such Jordan algebras. We describe a similar relationship between groups of type E_6 and groups of type E_7 and use it to give explicit descriptions of the homogeneous projective varieties associated to groups of type E_7 with trivial Tits algebras. The underlying algebraic structure for the relationship considered here are a sort of 56-dimensional structurable algebra which are forms of an algebra constructed from an exceptional Jordan algebra.
description: 35 pages, AMSLaTeX -- error in final section corrected
Broadband SiN asymmetric directional coupler for 840 nm operation
Creators: name: Nevlacsil, Stefan
name: Eggeling, Moritz
name: Muellner, Paul
name: Koppitsch, Guenther
name: Sagmeister, Martin
name: Kraft, Jochen
name: Hainberger, Rainer
Publisher: name: arXiv
Year: 2019
Subjects: subject: Optics (physics.optics)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Silicon nitride based photonic integrated circuits offer a wavelength operation window in the near infrared down to visible light, which makes them attractive for life science applications. However, they exhibit significantly different behavior in comparison with better-established silicon on insulator counterparts due to the lower index contrast. Among the most important building blocks in photonic integrated circuits are broadband couplers with a defined coupling ratio. We present silicon nitride broadband asymmetric directional coupler designs with 50/50 and 90/10 splitting ratios with a central wavelength of 840 nm for both TE- and TM-like polarization. We show that silicon nitride broadband asymmetric directional couplers can be designed accurately in a time efficient way by using a general implementation of the coupled mode theory. The accuracy of the coupled mode theory approach is validated with finite difference time domain simulations and confirmed with measurements of four coupler configurations.
description: 8 pages, 6 figures \c{opyright} 2018 Optical Society of America. Users may use, reuse, and build upon the article, or use the article for text or data mining, so long as such uses are for non-commercial purposes and appropriate attribution is maintained. All other rights are reserved
Magnetodynamics Inside and Outside Magnetars
Creators: Li, Xinyu
Publisher: name: Columbia University
Year: 2019
Subjects: Physics
Magnetars
Electromagnetic fields
Radioactivity
Dynamics
Plastics

description: The ultra-strong magnetic fields of magnetars have profound implications for their radiative phenomena. We study the dynamics of strong magnetic fields inside and outside magnetars. Inside the magnetar, the strong magnetic stress can break the crust and trigger plastic failures. The interaction between magnetic fields and plastic failures is studied in two scenarios: 1. Internal Hall waves launched from the core-crust interface can initiate plastic failures and lead to X-ray outbursts. 2. External Alfven waves produced by giant flares can also initiate crustal plastic failures which dissipate the waves and give rise to delayed thermal afterglow. The crustal dissipation of Alfven waves competes with the magnetospheric dissipation outside the magnetar. Using a high order simulation of Force-Free Electrodynamics (FFE), we found that the magnetospheric dissipation of Alfven waves is generally slow and most wave energy will dissipate inside the magnetar.
title: Lithodora zahnii (Heldr. ex Halácsy) I. M. Johnston
Creators: name: :None
Publisher: name: Universitätsbibliothek
Year: 2010
Subjects: subject: Digitale Pflanzenbilder: Sammlung Dietmar Brandes
subject: 580

description: Pflanzensammlung Dietmar Brandes: Digitale Pflanzenbilder
Field Study Aiming at Higher Grain Yield and Nutrient Use Efficiency in Wheat Grown in Alkaline Calcareous Soil
Creators: name: Irfan, Muhammad
Publisher: name: figshare
Year: 2019
Subjects: subject: 70302 Agronomy
subject: FOS: Agriculture, forestry and fisheries

description: Balanced fertilization ensures better crop production and optimizes the nutrient use efficiency, thereby sustaining yields on low input agro-ecosystems. A field study was conducted for two consecutive years to evaluate a recently evolved wheat genotype WBG-1-14 for grain yield and nutrient use efficiency. Three N and nine P2O5 levels were combined into 4:1, 4:2, and 4:3 N-P2O5 ratios to formulate ten treatments, including control. The analysis of pooled data revealed that the tested wheat genotype produced maximum grain and straw yield at 120-90 and 150-110 kg N-P2O5 ha-1, respectively. Maximum total N and P uptake were recorded in treatment having N-P2O5 at the rate of 150-110 kg ha-1 that were at par to treatment with 120-90 kg N-P2O5 ha-1. Various N and P efficiency indices, i.e., recovery efficiency (RE), agronomic efficiency (AE), physiological efficiency (PE) and internal utilization efficiency (IUE) were markedly influenced in response to varying regimes of both nutrients. The highest values for N efficiency indices (REN, AEN, PEN and IUEN) were recorded at 120-90, 90-70, 90-23 and 90-70 kg N-P2O5 ha-1, respectively. The maximum REP was observed at 150-40, while AEP, PEP and IUP were noticed higher at 90-23 kg N-P2O5 ha-1. Overall, the treatment 120-90 kg N-P2O5 ha-1 was found as the most suitable dose for higher grain yield production and nutrient accumulation by the tested genotype.
Representing mutations for predicting cancer drug response
Creators: name: Wall, Patrick
Publisher: name: F1000 Research Limited
Year: 2024

description: Predicting cancer drug response requires a comprehensive assessment of many mutations present across a tumor genome. While current drug response models generally use a binary mutated/unmutated indicator for each gene, not all mutations in a gene are equivalent. Here, we construct and evaluate a series of predictive models based on leading methods for quantitative mutation scoring. Such methods include VEST4 and CADD, which score the impact of a mutation on gene function, and CHASMplus, which scores the likelihood a mutation drives cancer. The resulting predictive models capture cellular responses to dabrafenib, which targets BRAF-V600 mutations, whereas models based on binary mutation status do not. Performance improvements generalize to other drugs, extending genetic indications for PIK3CA, ERBB2, EGFR, PARP1, and ABL1 inhibitors. Introducing quantitative mutation features in drug response models increases performance and mechanistic understanding.
Neutrino Mass and Mixing with $A_5$ Modular Symmetry
Creators: name: Ding, Gui-Jun
name: King, Stephen F.
name: Liu, Xiang-Gan
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present a comprehensive analysis of neutrino mass and lepton mixing in theories with $A_5$ modular symmetry. We construct the weight 2, weight 4 and weight 6 modular forms of level 5 in terms of Dedekind eta-functions and Klein forms, and their decomposition into irreducible representation of $A_5$. We construct all the simplest models based on $A_5$ modular symmetry, including scenarios of models with and without flavons in the charged lepton sectors. For each case, the neutrino masses can be generated through either the Weinberg operator or the type I seesaw mechanism. We perform an exhaustive numerical analysis, organising our results in an extensive set of figures and tables.
description: 54 pages, 12 figures
ROC Picker: Propagating statistical and systematic uncertainties in biological analyses
Creators: name: Roskes, Jeffrey
Publisher: name: F1000 Research Limited
Year: 2024

description: We present the first version of ROC Picker, a software package for propagating statistical and systematic uncertainties in a biomedical analysis.  The confidence bands are displayed on the ROC curve and can be used to assess the confidence of the discriminant’s power to separate between two types of samples.  In contrast to previous approaches, which only include the statistical error on the number of samples in constructing the ROC curve, ROC Picker uses a likelihood-based approach that can handle sample-wise uncertainties, including systematic effects (for example, batch-based errors) that are correlated between a subset of the samples.  ROC Picker is modeled on the Combine tool by the CMS Collaboration in experimental particle physics, and is developed as part of the AstroPath project, which applies data processing and analysis methodologies from astronomy into pathology.  We plan to further develop ROC Picker to handle various other metrics (such as Kaplan-Meier curves) and other types of uncertainties applicable to biomedical analyses.
Modifications of the BTZ black hole by a dilaton/scalar
Creators: name: Chan, Kevin C. K.
Publisher: name: arXiv
Year: 1996
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We investigate some modifications of the static BTZ black hole solution due to a chosen asymptotically constant dilaton/scalar. New classes of static black hole solutions are obtained. One of the solutions contains the Martinez-Zanelli conformal black hole solution as a special case. Using quasilocal formalism, we calculate their mass for a finite spatial region that contains the black hole. Their temperatures are also computed. Finally, using some of the curvature singularities as examples, we investigate whether a quantum particle behaves singularly or not.
description: 18 pages, Latex, in press in Phys. Rev. D
Thermodynamic constraint on the primordial black hole formation in the radiation dominated epoch
Creators: name: Lee, Hyun Kyu
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: It has been suggested that the overdense region as a result of inhomogeneities in the early Universe would have undergone a collapse into the primordial black holes(PBH). In this work, we discuss a possible constraint on the PBH formation in the radiation dominated epoch by imposing the generalized second law of thermodynamics in the context of spherically collapsing scenario. It is found that both the critical temperature $T_c$ over which the formation of PBH is not possible and the lower bound on the mass of PBH depend on the number of degrees of freedom at the time of PBH formation. In the standard model, one can show that the lower bound on the mass of PBH known in the literature, of order Planck mass, is consistent with the thermodynamic constraint constructed in this work. We also pointed out the possibility that the critical temperature(lower bound on PBH mass) can be lowered(increased) provided the number of relativistic degrees of freedom of the Universe is increasing substantially beyond the standard model.
description: 6 pages, accepted for publication in PRD
A simple proof of Bailey's very-well-poised 6-psi-6 summation
Creators: name: Schlosser, M.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: Combinatorics (math.CO)
subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics
subject: 33D15

description: We give elementary derivations of some classical summation formulae for bilateral (basic) hypergeometric series. In particular, we apply Gauss' 2-F-1 summation and elementary series manipulations to give a simple proof of Dougall's 2-H-2 summation. Similarly, we apply Rogers' nonterminating 6-phi-5 summation and elementary series manipulations to give a simple proof of Bailey's very-well-poised 6-psi-6 summation. Our method of proof extends M. Jackson's first elementary proof of Ramanujan's 1-psi-1 summation.
description: LaTeX2e, 10 pages, submitted to Proc. AMS, revised version, proofs of 1-psi-1 and 2-H-2 summations included
Excavations at Cuthman's Field, Church Street, Steyning, 1962
Creators: name: Barton, K
Publisher: name: Archaeology Data Service
Year: 2021

description: Sussex Archaeological Collections, 124, 87-108
description: The result of the excavations revealed two distinct phases of building and occupation ranging from the 10th to the 15th century and.from the 15th to the 18th century .
Fractal Conductance Fluctuations in a Soft Wall Stadium and a Sinai Billiard
Creators: name: Sachrajda, A. S.
name: Ketzmerick, R.
name: Gould, C.
name: Feng, Y.
name: Kelly, P. J.
name: Delage, A.
name: Wasilewski, Z.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: Conductance fluctuations have been studied in a soft wall stadium and a Sinai billiard defined by electrostatic gates on a high mobility semiconductor heterojunction. These reproducible magnetoconductance fluctuations are found to be fractal confirming recent theoretical predictions of quantum signatures in classically mixed (regular and chaotic) systems. The fractal character of the fluctuations provides direct evidence for a hierarchical phase space structure at the boundary between regular and chaotic motion.
description: 4 pages, 4 figures, data on Sinai geometry added to Fig.1, minor changes
Lancaster v. Dallingridge: A Franchisal Dispute in Fourteenth Century Sussex
Creators: name: Walker, Simon
Publisher: name: Archaeology Data Service
Year: 2021

description: Sussex Archaeological Collections, 121, 87-94
description: The prosecution of Sir Edward Dallingridge in 1384 by John of Gaunt is examined in detail. it is shown to have been the result of a long series of attacks on Gaunt 's estates in Sussex, occasioned by the local gentry's resentment at the efficiency and novelty of the Lancastrian administration in the county. The support Dallingridge enjoyed amongst the gentry was sufficient to protect him from retribution until 1384, when John of Gaunt exploited the momentary weakness of Sir Edward's patron, Richard earl of Arundel, in order to press his case. The judicial proceedings provide some vivid details of court procedure in the late fourteenth century and show that Dallingridge personally conducted a lively defence, but he was unable to avoid sentence before a bench of justices favourable to Lancaster. The duke was, however, sensible of the power of the Sussex gentry and careful not to press his advantage. In the end, Dallingridge lost very little by his violence.
Lipoxygenase sequences in Beggiatoa spp. suggest a new life strategy in giant sulfur bacteria
Creators: name: Kurakin, Georgy
Publisher: name: F1000 Research Limited
Year: 2024

description: Discovery of Thiomargarita magnifica — the biggest-ever bacterium — urged us to revisit our recent bioinformatic finding of lipoxygenase enzyme in Beggiatoa spp. These closest relatives of Thiomargarita also harbor lipoxygenase sequences, according to protein databases, but did not contribute to the statistical association between lipoxygenases and multicellularity we observed in our previous study. However, their unusually large size and the close relatedness to T. magnifica urges to pay extra attention to their lipoxygenases. In contrast to T. magnifica and Thioploca spp., they cannot bridge two essential metabolic substrates — oxygen/nitrate and sulfide — by increasing intracellular complexity or by gliding up and down. This suggests that lipoxygenases in these bacteria are a sign of complex cell-to-cell signaling necessary to fulfill the size demand and survive. Given the interest to the discovery of Thiomargarita magnifica, we assume that lipoxygenases in Beggiatoa also deserve proper discussion. We have published an update article in Biochemistry (Moscow) and discussed this finding on the platform of Springer Nature Research Communities. This poster is based on these materials.
Clytius shola Zhang & Cong & Shen & Grishin 2022, new combination
Creators: name: Zhang, Jing
name: Cong, Qian
name: Shen, Jinhui
name: Grishin, Nick V.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Hesperiidae
Clytius
Clytius shola

description: Clytius shola (Evans, 1953), new combination
 Staphylus shola Evans, 1953 (type locality unknown, sequenced specimen is from Venezuela) is not monophyletic with Staphylus Godman and Salvin, 1896 (type species Helias ascalaphus Staudinger, 1876), and instead is sister to Clytius clytius (Godman and Salvin, 1897) (Fig. 5). Male genitalia of the two species share similarly convex costa and bulging ampulla, but a triangular harpe is more extended caudad in S. shola. Thus, it is placed in the genus Clytius Grishin, 2019 (type species Pholisora clytius Godman and Salvin, 1897) as Clytius shola (Evans, 1953), new combination.
description: Published as part of Zhang, Jing, Cong, Qian, Shen, Jinhui & Grishin, Nick V., 2022, Taxonomic changes suggested by the genomic analysis of Hesperiidae (Lepidoptera), pp. 1-135 in Insecta Mundi 2022 (921) on page 28, DOI: 10.5281/zenodo.6392056