cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Global cropland nitrogen flows for the year 2000 and 2010 simulated by GLOBIOM
Creators: name: Chang, J.
name: Havlik, P.
name: Leclere, D.
name: De Vries, W.
name: Valin, H.
name: Deppermann, A.
name: Hasegawa, T.
name: Obersteiner, M.
Publisher: name: International Institute for Applied Systems Analysis (IIASA)
Year: 2021

description: The dataset provides data on global cropland nitrogen flows for the year 2000 and 2010 at country level simulated by GLOBIOM. The nitrogen flows include N fertilizer, N manure, N fixation, N deposition, and harvested N. GLOBIOM (Global Biosphere Management Model) is a global partial equilibrium model allocating land-based activities, i.e. management of cropland, livestock systems and forestry, under land availability constraints, to maximize the sum of producer and consumer surpluses. In a recent version, the N cycle in global agricultural systems, including cropland, pasture and livestock systems, and in related human food systems was implemented in GLOBIOM. All biomass flows in GLOBIOM were transformed into N flows, and further accounted for additional N flows, including crop residues, biological nitrogen fixation (BNF), manure and fertilizer application, atmospheric deposition and N losses through leaching and gaseous of NH3, NOx, N2O, and N2. A description of the variables and associated data sources is available in the spreadsheet named “BasicInfo".
Strong Magnetic Field Limits in Linear and Nonlinear Schrodinger Equations
Creators: name: Richman, Evelyn
Publisher: name: University of Illinois at Chicago
Year: 2022
Subjects: Uncategorized

description: In this thesis we study the dynamics of linear and nonlinear magnetic Schrodinger equations in the strong field limit. First, we derive an approximate equation for a nonlinear Iwatsuka-type model in two dimensions. This relies on high frequency averaging techniques and robust estimates within scaled Sobolev spaces. Second, we compute an approximate solution to the linear Schrodinger equation in three dimensions in the presence of axisymmetric magnetic fields. This is achieved via analytic and singular perturbation theory applied to a family of fibered Hamiltonians. In both cases we demonstrate that the effective dynamics in the strong magnetic field limit result in similar behavior to what is observed in the corresponding classical dynamics.
title: Single-Source-Precursor Containing Derived Transition Metal Compounds Carbon Hybrid Nanocomposites for Electrochemical Applications
Creators: name: Chen, Yongchao
Publisher: name: UNSPECIFIED
Year: 2023

description: Advanced catalysts for the electrocatalytic hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) are required in the future to further develop an efficient and up-scalable water splitting process. Among all the potential candidates, carbon-supported transition metal-based nanomaterials are of great interest due to their low cost, high durability, and promising functional performance. This dissertation presents an innovative and cost-effective approach to synthesize carbon shell-encapsulated transition metal alloys or phosphide nanoparticles supported on in-situ formed defective N-doped carbon/carbon nanotube hybrids, which are derived from novel single-source-precursors (SSPs). The precursor is synthesized by a facile one-pot reaction using cheap and environmentally friendly carbon and phosphorus sources. The obtained core-shell structured hybrids perform as highly active and durable electrocatalysts for HER and/or OER, benefiting from the following common features: (1) A synergistic electronic effect among transition metal compounds, heteroatom-doped carbon, and entangled carbon nanotubes. (2) Promotion of electrolyte penetration towards the active sites through the porous structure of the formed mesoporous carbon clusters. (3) The unique core-shell nanostructure of the hybrid material effectively curbs the degradation of the electrocatalyst by protecting the active nanoparticles from harsh electrolyte. The present studies propose various strategies to enhance the electrocatalytic properties, utilizing both morphology-controlled and composition-controlled methods. Additionally, the studies also focus on the relationship between structure and property, which ultimately determines the electrocatalytic activity for the HER and OER. These findings may offer valuable insights for future applications in the field of electrochemical water splitting. Furthermore, the thesis aims to provide a cost-effective and straightforward approach for synthesizing hybrid materials comprised of transition metal compounds and carbon, with the goal of facilitating their potential utilization in energy storage and conversion applications.
Chemical nature and immunotoxicological properties of arachidonic acid degradation products formed by exposure to ozone
Creators: name: Hanley, N
name: Becker, S
name: Madden, M C
name: Friedman, M
name: Siegler, E
name: Quay, J
name: Koren, H S
name: Devlin, R
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1993

description: Ozone (O3) exposure in vivo has been reported to degrade arachidonic acid (AA) in the lungs of rodents. The O3-degraded AA products may play a role in the responses to this toxicant. To study the chemical nature and biological activity of O3-exposed AA, we exposed AA in a cell-free, aqueous environment to air, 0.1 ppm O3, or 1.0 ppm O3 for 30-120 min. AA exposed to air was not degraded. All O3 exposures degraded > 98% of the AA to more polar products, which were predominantly aldehydic substances (as determined by reactivity with 2,4-dinitrophenylhydrazine and subsequent separation by HPLC) and hydrogen peroxide. The type and amount of aldehydic substances formed depended on the O3 concentration and exposure duration. A human bronchial epithelial cell line (BEAS-2B, S6 subclone) exposed in vitro to either 0.1 ppm or 1.0 ppm O3 for 1 hr produced AA-derived aldehydic substances, some of which eluted with similar retention times as the aldehydic substances derived from O3 degradation of AA in the cell-free system. In vitro, O3-degraded AA induced an increase in human peripheral blood polymorphonuclear leukocyte (PMN) polarization, decreased human peripheral blood T-lymphocyte proliferation in response to mitogens, and decreased human peripheral blood natural killer cell lysis of K562 target cells. The aldehydic substances, but not hydrogen peroxide, appeared to be the principal active agents responsible for the observed effects. O3-degraded AA may play a role in the PMN influx into lungs and in decreased T-lymphocyte mitogenesis and natural killer cell activity observed in humans and rodents exposed to O3.
Triple Massey products vanish over all fields
Creators: name: Minac, Jan
name: Tan, Nguyen Duy
Publisher: name: arXiv
Year: 2014
Subjects: subject: Number Theory (math.NT)
subject: Group Theory (math.GR)
subject: FOS: Mathematics

description: We show that the absolute Galois group of any field has the vanishing triple Massey product property. Several corollaries for the structure of maximal pro-$p$-quotient of absolute Galois groups are deduced. Furthermore, the vanishing of some higher Massey products is proved.
description: We have improved our exposition following the referee's suggestions. The article will appear in the Journal of the London Mathematical Society
Fraile, Gulllermo, Historia de la Filosofia Española. La Editorial Católica S. A., 2 vols. de 420 e 338 ps. 135x190. Madrid 1971-1972
Creators: name: Arieiro, José
Publisher: name: Theologica
Year: 1973

description: Theologica, v. 8 n. 1 (1973)
Optimization of Cartesian Tasks with Configuration Selection
Creators: name: Weiß, Martin G.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Robotics (cs.RO)
subject: Optimization and Control (math.OC)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: 90C26

description: A basic task in the design of an industrial robot application is the relative placement of robot and workpiece. Process points are defined in Cartesian coordinates relative to the workpiece coordinate system, and the workpiece has to be located such that the robot can reach all points. Finding such a location is still an iterative procedure based on the developers' intuition. One difficulty is the choice of one of the several solutions of the backward transform of a typical 6R robot. % combined with the limited range of the axes. We present a novel algorithm that simultaneously optimizes the workpiece location and the robot configuration at all process points using higher order optimization algorithms. A key ingredient is the extension of the robot with a virtual prismatic axis. The practical feasibility of the approach is shown with an example using a commercial industrial robot.
description: 8 pages, 2nd IMA Conference on Mathematics of Robotics, 2021
Comparison of DNA adducts from exposure to complex mixtures in various human tissues and experimental systems
Creators: name: Hulka, Barbara
name: Gallagher, Jane
name: Šrám, Radim
name: Wilcosky, Tim
name: George, Michael
name: Mumford, Judy
name: Thompson, Claudia
name: Dobiáš, Lubomir
name: Everson, Richard B.
name: Li, Xueming
name: Kozumbo, Walter
name: Lewtas, Joellen
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1993

description: DNA adducts derived from complex mixtures of polycyclic aromatic compounds emitted from tobacco smoke are compared to industrial pollution sources (e.g., coke ovens and aluminum smelters), smoky coal burning, and urban air pollution. Exposures to coke oven emissions and smoky coal, both potent rodent skin tumor initiators and lung carcinogens in humans, result in high levels of DNA adducts compared to tobacco smoke in the in vitro calf thymus DNA model system, in cultured lymphocytes, and in the mouse skin assay. Using tobacco smoke as a model in human studies, we have compared relative DNA adduct levels detected in blood lymphocytes, placental tissue, bronchoalveolar lung lavage cells, sperm, and autopsy tissues of smokers and nonsmokers. Adduct levels in DNA isolated from smokers were highest in human heart and lung tissue with smaller but detectable differences in placental tissue and lung lavage cells. Comparison of the DNA adduct levels resulting from human exposure to different complex mixtures shows that emissions from coke ovens, aluminum smelters, and smoky coal result in higher DNA adduct levels than tobacco smoke exposure. These studies suggest that humans exposed to complex combustion mixtures will have higher DNA adduct levels in target cells (e.g., lung) as compared to nontarget cells (e.g., lymphocytes) and that the adduct levels will be dependent on the genotoxic and DNA adduct-forming potency of the mixture. ImagesFIGURE 1.FIGURE 1.FIGURE 2.FIGURE 3.FIGURE 3.FIGURE 3.FIGURE 3.FIGURE 3.FIGURE 3.FIGURE 4.
Arrenurus (Micruracarus) madaraszi Daday 1898
Creators: name: Pešić, Vladimir
name: Chatterjee, Tapas
name: Bordoloi, Sabitry
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Trombidiformes
Arrenuridae
Arrenurus
Arrenurus madaraszi

description: Arrenurus (Micruracarus) madaraszi Daday, 1898
Records from the study area: Kerala—“ Arrenurus palembangensis “ Walter (1928); Rajasthan—Cook (1967); Karnataka—Cook (1967); Maharashtra—Cook (1967), Lundblad (1969); West Bengal—Lundblad (1969); Uttaranchal—Smit & Pešić (2008); Prasad (1974); Smit & Pešić (2008).
Habitat: Ponds.
Distribution: India, Sri Lanka, Burma, Laos, Malaysia, Indonesia, Brunei, China, Japan, Singapore, Australia.
description: Published as part of Pešić, Vladimir, Chatterjee, Tapas & Bordoloi, Sabitry, 2010, A checklist of the water mites (Acari: Hydrachnidia) of India, with new records and description of one new species, pp. 1-54 in Zootaxa 2617 (1) on page 40, DOI: 10.11646/zootaxa.2617.1.1, http://zenodo.org/record/197964
Vários, Actas da Assembleia Internacional de Estudos Filosóficos (Braga, 29-31/X/1967). Ed. da Revista Portuguesa de Filosofia. Vol. de 388 ps. 165x230. Braga 1969
Creators: name: Dias, Álvaro
Publisher: name: Theologica
Year: 1973

description: Theologica, v. 8 n. 1 (1973)
A maximum likelihood estimate of natural mortality for brown tiger prawn (Penaeus esculentus) in Moreton Bay (Australia)
Creators: name: Kienzle, Marco
name: Sterling, David
name: Zhou, Shijie
name: Wang, You-Gan
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantitative Methods (q-bio.QM)
subject: FOS: Biological sciences

description: The delay difference model was implemented to fit 21 years of brown tiger prawn (Penaeus esculentus) catch in Moreton Bay by maximum likelihood to assess the status of this stock. Monte Carlo simulations testing of the stock assessment software coded in C++ showed that the model could estimate simultaneously natural mortality in addition to catchability, recruitment and initial biomasses. Applied to logbooks data collected from 1990 to 2010, this implementation of the delay difference provided for the first time an estimate of natural mortality for brown tiger prawn in Moreton Bay, equal to $0.031 \pm 0.002$ week$^{-1}$. This estimate is approximately 30\% lower than the value of natural mortality (0.045 week$^{-1}$) used in previous stock assessments of this species.
An Investigation Into The Mechanism Of Formation Of Electrodeposited Composite Coatings
Creators: name: White, Christopher
Publisher: name: London South Bank University
Year: 1981

description: A mechanism for the formation of electrodeposited composite coatings has been proposed which was based on a study of the acid copper sulphate-alumina system. Apparatus was constructed to provide a controlled cathodic vibration, and this was used to examine the effect of bath parameters on the adsorption of particles onto the cathode and on the formation of a solid particle-cathode bond by the deposition of metal. The strength of the bond established between the particle and the cathode without the influence of deposited metal was found to be independent of pH, temperature and the chemical nature of the particle and substrate. However, the ability of this bond to hold the particle onto the cathode, long enough for it to be permanently fixed as a result of metal deposition, would be influenced by the prevailing agitation conditions and by the particle size and density. Electrostatic attraction was found to have an insignificant influence on the strength of this bond. The adhesion of: the particle was found to rapidly increase as a result of metal deposition, the rate of formation of this bond increasing as a function of metal ion adsorption on the particle. Although metal ion adsorption increased with temperature, it was deduced from particle content - current density curves that the rate of formation of the bond, at low current densities, decreased with increasing temperature. This was attributed to the relative ease of reduction of metal ions from the bulk solution compared to those adsorbed on the particle. At low current density the rate of formation of the particle-cathode bond controls code position. As the current density is increased the efficiency of bond formation increases such that at high current density the rate of arrival of particles to the cathode surface becomes the controlling factor. The particle arrival rate was shown to increase firstly with temperature, due possibly to a reduction in the thickness of the boundary layer at the cathode surface and secondly with reducing surface roughness, The rate of formation of the solid/solid bond was found to be highly sensitive to chloride in the case of the copper-alumina system; its removal by the addition of silver or thallium promoted code position.
Semi-Analytical Electromagnetic Transient Simulation Using Differential Transformation
Creators: name: Xiong, Min
name: Yao, Rui
name: Liu, Yang
name: Sun, Kai
name: Qiu, Feng
Publisher: name: arXiv
Year: 2023
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: For electromagnetic transient (EMT) simulation of a power system, a state-space-based approach needs to solve state-space EMT equations by using numerical integration methods, e.g., the Euler method, Runge-Kutta methods, and trapezoidal-rule method, at small time steps. The simulation can be slow on a power system having multiple generators. To speed up state-space-based EMT simulations, this paper proposes a Differential Transformation based semi-analytical method that repeatedly utilizes a high-order semi-analytical solution of the EMT equations at longer time steps. The proposed semi-analytical method is tested on the detailed EMT model of a four-generator two-area system. Simulation results show the significant potential of the proposed method to accelerate EMT simulations of power systems compared with traditional numerical methods.
Epidemiologic Studies of Electric and Magnetic Fields and Cancer: Strategies for Extending Knowledge
Creators: name: Savitz, D A
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1993

description: Epidemiologic research concerning electric and magnetic fields in relation to cancer has focused on the potential etiologic roles of residential exposure on childhood cancer and occupational exposure on adult leukemia and brain cancer. Future residential studies must concentrate on exposure assessment that is enhanced by developing models of historical exposure, assessment of the relation between magnetic fields and wire codes, and consideration of alternate exposure indices. Study design issues deserving attention include possible biases in random digit dialing control selection, consideration of the temporal course of exposure and disease, and acquisition of the necessary information to assess the potential value of ecologic studies. Highest priorities are comprehensive evaluation of exposure patterns and sources and examination of the sociology and geography of residential wire codes. Future occupational studies should also concentrate on improved exposure assessment with increased attention to nonutility worker populations and development of historical exposure indicators that are superior to job titles alone. Potential carcinogens in the workplace that could act as confounders need to be more carefully examined. The temporal relation between exposure and disease and possible effect modification by other workplace agents should be incorporated into future studies. The most pressing need is for measurement of exposure patterns in a variety of worker populations and performance of traditional epidemiologic evaluations of cancer occurrence. The principal source of bias toward the null is nondifferential misclassification of exposure with improvements expected to enhance any true etiologic association that is present. Biases away from the null might include biased control selection in residential studies and chemical carcinogens acting as confounders in occupational studies.
title: Gridded Soil Surface Nitrogen Surplus on Grazing and Agricultural Land: Impact of Land Use Maps
Creators: name: Kaltenegger, K.
Publisher: name: International Institute for Applied Systems Analysis (IIASA)
Year: 2021

description: Excess N application on agricultural land greatly impacts the environment in multiple ways, driven by population growth and improving quality of human diets. Therefore, it is essential to quantify the sources of the emissions of N compounds and their determinants (e.g. biological N fixation (BNF), mineral fertilizer, manure N and N deposition) to develop adequate mitigation measures. Here aim at comprehensively mapping and quantifying N fluxes on agricultural land to analyze these sources on different scales. As underlying grazing land maps used for such calculations fairly different in terms of methodology and definition and thus spatial extent and pattern, we investigate how this diversity in grazing land maps affects quantification of N indicators. We compared three different global grazing land maps and analyzed the propagation of differences to discrepancies in N indicators calculated from them. We discovered that (i) area differences propagated to high discrepancies in N surplus mostly in Asia, and to a minor extent also in Europe and Northern Africa. (ii) A more inclusive definition of grazing land results in overall less N surplus given the larger areas included but allows to provide a more comprehensive estimate of the influence of human activity on the N cycle. (iii) BNF was identified as constituting an important translator for differences on grazing land to N indicators, while also being a source of further uncertainty, which warrants further scrutiny. This study is the first to provide an in-depth analysis of the effect of grazing land and agricultural land area differences on various N budget terms and N indicator calculation, highlighting opportunities for further research, and the importance of a comprehensive accounting of N surplus when using an inclusive definition of grazing land.
Health effects of electric and magnetic fields: overview of research recommendations
Creators: name: Savitz, David A.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1993

description: We developed a series of articles concerning epidemiologic research on potential health effects of electric and magnetic fields. Our goal was to identify methodological issues that have arisen through past studies of cancer, reproduction, and neurobehavioral outcomes in order to suggest strategies to extend knowledge. Following an overview of relevant physics and engineering principles, cancer epidemiology of electric and magnetic fields is discussed separately with a focus on epidemiologic methods and cancer biology, respectively. Reproductive health studies, many of which focus on exposure from video display terminals are then summarized, followed by an evaluation of the limited literature on neurobehavioral outcomes, including suicide and depression. Methodological issues in exposure assessment are discussed, focusing on the challenges in residential exposure assessment and interpretation of wire configuration codes. An overview offers recommendations for priorities across these topic areas, emphasizing the importance of resolving the question of wire codes and childhood cancer. Collectively, these articles provide an array of observations and suggestions regarding the epidemiologic literature, recognizing the potential benefits to science and public policy. 10 refs.
Lateral Habenula Astrocyte Activation in Paclitaxel-Induced Peripheral Neuropathy
Creators: name: Guo, Xiao
Publisher: name: University of Illinois at Chicago
Year: 2022
Subjects: Uncategorized

description: The painful neuropathy induced by paclitaxel (PIPN) significantly impacts the quality of life for cancer patients and may lead to the cessation of the chemotherapy and poor clinical outcomes. The importance of spinal glia pathophysiology to the etiology of chronic pain has been investigated in multiple pain models; however, less is understood regarding its regulation at the supraspinal level. The lateral habenula (LHb), which is responsible for coding aversion signals, has emerged as a key region of pain signal processing. Whether activated astrocytes in LHb are responsible for pain signaling is not yet understood. In the current study, we investigated the astrocyte activation in LHb, evoked hypersensitivity, spontaneous pain and comorbid anxiety-like behaviors in a mouse model of PIPN. We first demonstrated the existence of astrocyte activation in LHb during the late phase of PIPN, as indicated by the enhanced immunoreactivity of GFAP and cellular hypertrophy. We then inhibited LHb astrocyte activation by microinjections of L-a-aminoadipic acid (L-a-AA), an astrocyte-specific cellular toxin. L-a-AA selectively attenuated the spontaneous pain but not the evoked hyperalgesia in a lateralized manner, supporting the hypothesis that the activated astrocytes contribute differently to sensory and affective pain in PIPN. Furthermore, we induced PIPN-like behaviors in naive mice by transplantation of activated astrocytes treated by paclitaxel and by in vivo chemogenetic activation of astrocytes through AAV-GFAP-hM3Dq. Taken together, our results showed the contributions of astrocyte activation in LHb to the development of pain and associated affective changes and its unilateral regulation of spontaneous pain, deepening our understanding of the functional asymmetry of LHb.
Molecular Analysis of Mutations Induced at the hisD3052 Allele of Salmonella by Single Chemicals and Complex Mixtures
Creators: name: Abu-Shakra, Amal
name: Bell, Douglas A.
name: Levine, Jessie G.
name: DeMarini, David M.
name: Shelton, Melissa L.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1993

description: More single chemicals and complex environmental mixtures have been evaluated for mutagenicity at the hisD3052 allele of Salmonella, primarily in strain TA98, than in any other mutation assay. The development of colony probe hybridization procedures and the application of the polymerase chain reaction and direct DNA sequencing has permitted rapid molecular access to this allele. We discuss these techniques and the resulting mutation spectra that have been induced by a variety of environmental mutagens and complex mixtures. A common GC or CG deletion within a hot-spot region of the sequence dominates most of the spectra. In addition to this two-base deletion, we have recovered about 200 other types of mutations within the 72-base target for reversion of the hisD3052 allele. These include a variety of deletions (as large as 35 bases), duplications (as large as 46 bases), and complex mutations involving base substitutions. The quasipalindromic nature of the target sequence and its potential to form DNA secondary structures and slippage mismatches appear to be an important basis for the mutability of this allele.
A boost for the EW SUSY hunt: monojet-like search for compressed sleptons at LHC14 with 100 fb^-1
Creators: name: Barr, Alan
name: Scoville, James
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Current Large Hadron Collider (LHC) analyses are blind to compressed supersymmetry (SUSY) models with sleptons near the lightest super partner (LSP) in mass: $m_{\tilde{l}} - m_{\tildeχ_1^0} \equiv Δm \lesssim 60$ GeV. We present a search sensitive to the very compressed range $3~\text{GeV} < Δm < 24~\text{GeV}$ using the channel $p p \rightarrow \tilde{l}^+ \tilde{l}^- +\rm{jet} \rightarrow$ $l^+ l^- \tildeχ_1^0 \tildeχ_1^0 +\rm{jet}$ with soft same-flavor leptons and one hard jet from initial state radiation ($p_{\rm T}^j >100$ GeV). The sleptons recoil against the jet boosting them and their decay products, making the leptons detectable and providing substantial missing transverse momentum. We use the kinematic variable $m_{\rm T 2}$ along with a different-flavor control region to reduce the large standard model backgrounds and control systematic uncertainty. We find the analysis should allow LHC14 with $100~\text{fb}^{-1}$ to search for degenerate left-handed selectrons and smuons in the compressed region up to $m_{\tilde{l}_L} \lesssim 150$ GeV. In addition, it should be sensitive to $m_{\tilde{l}_L} \lesssim 110$ GeV for the very challenging case of auto-concealed SUSY, in which left-handed sleptons decay to the Kaluza-Klein tower of a modulino LSP which lives in $d=6$ extra dimensions. In both the compressed spectrum and auto-concealed SUSY scenarios this analysis will need more data to improve on LEP2 limits for right-handed sleptons due to their smaller cross sections.
description: 15 pages, 3 figures, updated citations in v2
Magnon spectra and strong spin-lattice coupling in magnetically frustrated MnB2O4 (B = Mn,V): Inelastic light scattering studies
Creators: name: Gleason, S. L.
name: Byrum, T.
name: Gim, Y.
name: Thaler, A.
name: Abbamonte, P.
name: MacDougall, G. J.
name: Martin, L. W.
name: Zhou, H. D.
name: Cooper, S. L.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The ferrimagnetic spinels MnB2O4 (B = Mn,V) exhibit a similar series of closely spaced magnetic and structural phase transitions at low temperatures, reflecting both magnetic frustration and a strong coupling between the spin and lattice degrees of freedom. Careful studies of excitations in MnB2O4 (B = Mn,V), and the evolution of these excitations with temperature, are important for obtaining a microscopic description of the role that magnetic excitations and spin-lattice coupling play in the low temperature phase transitions of these materials. We report an inelastic light (Raman) scattering study of the temperature and magnetic field dependences of one- and two-magnon excitations in MnV2O4 and Mn3O4. We observe a pair of q=0 one-magnon modes at 74 cm^{-1} and 81 cm^{-1} in MnV2O4, which is in contrast with the single 80 cm^{-1} q=0 magnon that has been reported for MnV2O4 based on previous neutron scattering measurements and spin wave calculations. Additionally, we find that the two-magnon energy of MnV2O4 decreases ("softens") with decreasing temperature below T_{N}, which we attribute to strong coupling between magnetic and vibrational excitations near the zone boundary.
description: 7 pages, 4 figures
Molecular dosimetry of DNA and hemoglobin adducts in mice and rats exposed to ethylene oxide
Creators: name: Fennell, T R
name: Upton, P B
name: Swenberg, J A
name: MacNeela, J P
name: Walker, V E
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1993

description: Experiments involving ethylene oxide (ETO) have been used to support the concept of using adducts in hemoglobin as a surrogate for DNA adducts in target tissues. The relationship between repeated exposures to ETO and the formation of N-(2-hydroxyethyl)valine (HEtVal) in hemoglobin and 7-(2-hydroxyethyl)guanine (7-HEG) in DNA was investigated in male rats and mice exposed by inhalation to 0, 3, 10, 33, or 100 ppm ETO for 6 hr/day for 4 weeks, or exposed to 100 ppm (mice) or 300 ppm (rats) for 1, 3, 5, 10, or 20 days (5 days/week). HEtVal was determined by Edman degradation, and 7-HEG was quantitated by HPLC separation and fluorescence detection. HEtVal formation was linear between 3 and 33 ppm ETO and increased in slope above 33 ppm. The dose-response curves for 7-HEG in rat tissues were linear between 10 and 100 ppm ETO and increased in slope above 100 ppm. In contrast, only exposures to 100 ppm ETO resulted in significant accumulation of 7-HEG in mice. Hemoglobin adducts were lost at a greater rate than predicted by normal erythrocyte life span. The loss of 7-HEG from DNA was both species and tissue dependent, with the adduct half-lives ranging from 2.9 to 5.8 days in rat tissues (brain, kidney, liver, lung, spleen, testis) and 1.0 to 2.3 days in all mouse tissues except kidney (t1/2 = 6.9 days). The concentrations of HEtVal were similar in concurrently exposed rats and mice, whereas DNA from rats had at least 2-fold greater concentrations of 7-HEG than DNA from mice.(ABSTRACT TRUNCATED AT 250 WORDS)
Molecular modeling studies suggest that zinc ions inhibit HIV-1 protease by binding at catalytic aspartates
Creators: name: Darden, T A
name: York, D M
name: Anderson, M W
name: Pedersen, L G
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1993

description: Human immunodeficiency virus type 1 protease is inhibited in vitro by zinc ions at neutral pH. The binding site of these ions is not known; however, experimental data suggest that binding may occur in the active site. To examine the possibility of zinc binding in the active site, molecular dynamics simulations in the presence and absence of zinc have been carried out to 200 psec. The results are compared with the 2.8-A crystallographic structures of a synthetic HIV-1 protease, and a zinc binding site at the catalytic aspartate residues (Asp-25, Asp-25') is proposed. Molecular dynamics simulations show that the zinc ion remains stably bound in this region, coordinating the carboxylate side chains of both aspartate residues. Interaction with zinc does not disrupt the dimeric structure of the protein or significantly alter the structure of the active site. These data are consistent with experimental studies of HIV-1 protease inhibition by zinc and give strong evidence that this is the binding site that leads to inactivation.Imagesp246-aFigure 1.Figure 2.Figure 3.
FAIR Implementation Workshop: Supporting FAIR adoption at the national level in Denmark slide deck
Creators: name: Boerman, Sandra
Publisher: name: Zenodo
Year: 2023
Subjects: FAIR
National approaches to support FAIR
Denmark
FAIR-IMPACT
FAIR Implementation Workshop

description: The "FAIR Implementation Workshop - Supporting FAIR adoption at the national level: Denmark" took place on 11 October 2023 from 09:30-11:00 am CEST. Registration for the workshop was free but mandatory. In this workshop, participants learned about how Denmark is supporting adoption of the FAIR principles at the national level and the Danish National Strategy for Data Management based on the FAIR principles.
Speakers and topics:

The Danish strategy - process and timeline, John Renner Hansen, Professor, Niels Bohr Institute, UCPH, Chairperson for the Danish national FAIR strategy  
Strategic Motivation - the Danish Ministry of Higher Education and Science, Bjarke Stolze Kaspersen, Special Consultant, The Ministry of Higher Education and Science  
The 17 action areas: what, why and how, Anne Sofie Fink Kjelgaard, Head of DeiC's data management team
Status and hopes for the future, John Renner Hansen, Professor, Niels Bohr Institute, UCPH, Chairperson for the Danish national FAIR strategy
New measurement of the elemental fragmentation cross sections of 218 MeV/nucleon 28 Si on a carbon target
Creators: name: Li, Guang-Shuai
name: Su, Jun
name: Sun, Bao-Hua
name: Terashima, Satoru
name: Zhao, Jian-Wei
name: Xu, Xiao- Dong
name: Zhang, Ji-Chao
name: Guo, Ge
name: He, Liu-Chun
name: Lin, Wei-Ping
name: Lin, Wen-Jian
name: Liu, Chuan-Ye
name: Lu, Chen-Gui
name: Mei, Bo
name: Sun, Zhi-Yu
name: Tanihata, Isao
name: Wang, Meng
name: Wang, Feng
name: Wang, Shi-Tao
name: Wei, Xiu-Lin
name: Wang, Jing
name: Xu, Jun-Yao
name: Liu, Jin-Rong
name: Zhang, Mei-Xue
name: Zheng, Yong
name: Zhu, Li-Hua
name: Zhang, Xue-Heng
Publisher: name: arXiv
Year: 2023
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Elemental fragmentation cross sections (EFCSs) of stable and unstable nuclides have been investigated with various projectile-target combinations at a wide range of incident energies. These data are critical to constrain and develop the theoretical reaction models and to study the propagation of galactic cosmic rays (GCR). In this work, we present a new EFCS measurement for $^{28}$Si on carbon at 218~MeV/nucleon performed at the Heavy Ion Research Facility (HIRFL-CSR) complex in Lanzhou. The impact of the target thickness has been well corrected to derive an accurate EFCS. Our present results with charge changes $ΔZ$ = 1-6 are compared to the previous measurements and to the predictions from the models modified EPAX2, EPAX3, FRACS, ABRABLA07, NUCFRG2, and IQMD coupled with GEMINI (IQMD+GEMINI). All the models fail to describe the odd-even staggering strength in the elemental distribution, with the exception of the IQMD+GEMINI model, which can reproduce the EFCSs with an accuracy of better than 3.5\% for $ΔZ\leq5$. The IQMD+GEMINI analysis shows that the odd-even staggering in EFCSs occurs in the sequential statistical decay stage rather than in the initial dynamical collision stage. This offers a reasonable approach to understand the underlying mechanism of fragmentation reactions.
description: 13 pages, 8 figures
Acouaviva, Sabino S., e Guizzardi, Gustavo, Religione e irrelegione Nell’età postindustriale. Ed. AVE. Vol. de 388 ps. 155x215. Roma 1971
Creators: name: Arieiro, José
Publisher: name: Theologica
Year: 1973

description: Theologica, v. 8 n. 1 (1973)
1,3-Butadiene: linking metabolism, dosimetry, and mutation induction
Creators: name: Gargas, M L
name: Bond, J A
name: Leavens, T
name: Medinsky, M A
name: Csanady, G A
name: Guengerich, F P
name: Recio, L
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1994

description: There is increasing concern for the potential adverse health effects of human exposures to chemical mixtures. To better understand the complex interactions of chemicals within a mixture, it is essential to develop a research strategy which provides the basis for extrapolating data from single chemicals to their behavior within the chemical mixture. 1,3-Butadiene (BD) represents an interesting case study in which new data are emerging that are critical for understanding interspecies differences in carcinogenic/genotoxic response to BD. Knowledge regarding mechanisms of BD-induced carcinogenicity provides the basis for assessing the potential effects of mixtures containing BD. BD is a multisite carcinogen in B6C3F1 mice and Sprague-Dawley rats. Mice exhibit high sensitivity relative to the rat to BD-induced tumorigenesis. Since it is likely that BD requires metabolic activation to mutagenic reactive epoxides that ultimately play a role in carcinogenicity of the chemical, a quantitative understanding of the balance of activation and inactivation is essential for improving our understanding and assessment of human risk following exposure to BD and chemical mixtures containing BD. Transgenic mice exposed to 625 ppm BD for 6 hr/day for 5 days exhibited significant mutagenicity in the lung, a target organ for the carcinogenic effect of BD in mice. In vitro studies designed to assess interspecies differences in the activation of BD and inactivation of BD epoxides reveal that significant differences exist among mice, rats, and humans. In general, the overall activation/detoxication ratio for BD metabolism was approximately 10-fold higher in mice compared to rats or humans.(ABSTRACT TRUNCATED AT 250 WORDS)
Electronic and Spin States of SrRuO3 Thin Films: an X-ray Magnetic Circular Dichroism Study
Creators: name: Agrestini, S.
name: Hu, Z.
name: Kuo, C. -Y.
name: Haverkort, 1 M. W.
name: Ko, K. -T.
name: Hollmann, N.
name: Liu, Q.
name: Pellegrin, E.
name: Valvidares, M.
name: Herrero-Martin, J.
name: Gargiani, P.
name: Gegenwart, P.
name: Schneider, M.
name: Esser, S.
name: Tanaka, A.
name: Komarek, A. C.
name: Tjeng, L. H.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We report a study of the local magnetism in thin films of SrRuO3 grown on (111) and (001) oriented SrTiO3 substrates using x-ray magnetic circular dichroism spectroscopy (XMCD) at the Ru-L2,3 edges. The application of the sum rules to the XMCD data gives an almost quenched orbital moment and a spin moment close to the value expected for the low spin state S = 1 . Full-multiplet cluster calculations indicate that the low spin state is quite stable and suggest that the occurrence of a transition to the high spin state S = 2 in strained thin films of SrRuO3 is unlikely as it would be too expensive in energy.
description: 6 pages, 6 figures, submitted to Phys Rev B
Arrenurus (Micruracarus) micropetiolatus Walter 1928
Creators: name: Pešić, Vladimir
name: Chatterjee, Tapas
name: Bordoloi, Sabitry
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Trombidiformes
Arrenuridae
Arrenurus
Arrenurus micropetiolatus

description: Arrenurus (Micruracarus) micropetiolatus Walter, 1928
New records: India: Assam State, Kamrup district, SW of Guwahati city, Deeper Beel wetland, between the water hyacinth Eichhornia corniculata, 26.10903N 91.68359E, 37 m asl., leg. 8. xii. 2009, leg. Das & Bordoloi, 1/0/0.
Records from the study area: Kerala—Walter (1928); Prasad (1974); Smit & Pešić (2008).
Habitat: Ponds, lakes.
Distribution: India, Burma.
description: Published as part of Pešić, Vladimir, Chatterjee, Tapas & Bordoloi, Sabitry, 2010, A checklist of the water mites (Acari: Hydrachnidia) of India, with new records and description of one new species, pp. 1-54 in Zootaxa 2617 (1) on page 40, DOI: 10.11646/zootaxa.2617.1.1, http://zenodo.org/record/197964
Eyeblink Conditioning in the Infant Rat: An Animal Model of Learning in Developmental Neurotoxicology
Creators: name: Freeman, J H
name: Stanton, M E
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1994

description: Classical conditioning of the eyeblink reflex is a relatively simple procedure for studying associative learning that was first developed for use with human subjects more than half a century ago. The use of this procedure in laboratory animals by psychologists and neuroscientists over the past 30 years has produced a powerful animal model for studying the behavioral and biological mechanisms of learning. As a result, eyeblink conditioning is beginning to be pursued as a very promising model for predicting and understanding human learning and memory disorders. Among the many advantages of this procedure are (a) the fact that it can be carried out in the same manner in both humans and laboratory animals; (b) the many ways in which it permits one to characterize changes in learning at the behavioral level; (c) the readiness with which hypotheses regarding the neurological basis of behavioral disorders can be formulated and tested; (d) the fact that it can be used in the same way across the life-span; and (e) its ability to distinguish, from normative groups, populations suffering from neurological conditions associated with impaired learning and memory, including those produced by exposure to neurotoxicants. In this article, we argue that these properties of eyeblink conditioning make it an excellent model system for studying early impairments of learning and memory in developmental neurotoxicology. We also review progress that has been made in our laboratory in developing a rodent model of infant eyeblink conditioning for this purpose.ImagesFigure 6. AFigure 6. BFigure 6. CFigure 6. D
Martingales and an Application
Creators: name: Mulgund, Abhijeet Anand
Publisher: name: University of Illinois at Chicago
Year: 2022
Subjects: Uncategorized

description: We set up some of the basic probability concepts needed to define martingales. We study ”strategies” on martingales and how they help us prove convergence. In addition, we prove decomposition of processes in terms of martingales. Finally, we look at an example application of martingales to study the number of components in an Erdős-Rényi graph.
The Analysis Of Productivity In Soap Manufacture With Particular Reference To Tee Needs Of Sudan
Creators: name: Nurelgalil, Ali
Publisher: name: London South Bank University
Year: 1981

description: The analysis of soap manufacturing in Sudan revealed that the industry faces major problems. These problems turned the industry into a losing business. Cotton seed oil is the main raw material for laundry soap manufacturing. The shortage of cotton seed led to a lot of idle capacities in soap factories. Semi-boiled process system of soap manufacturing is widely used in Sudan. The analysis of this system showed that : a) It gives poor quality of soap. b) It has high rate of waste and scrap. c) It does not allow recovery of glycerol. dg) It has high operating costs due to the high labour requirements. e) It causes a low morale in the labour force due to the high rate of injury. The analysis of the system represented by Factory "X" showed that reprocessing soap scrap causes an annual loss of L.S 63000 (L.S = Sudanese pound). It also showed that cotton seed oil is no longer an economic oil to use for soap manufacture. It is more expensive compared to its substitutes, Palm kernal, oil palm and soya bean oils can be good replacements. Soya bean oil gives the highest revenue per ton. At present there are two alternative systems of soap processing. These alternatives are : 1. Full-boiled process which is a batch process in the saponification stage. 2. Continuous saponification process. The analysis showed that both systems can give better results compared to the existing system. This mainly because they avoid the manual operations, can recover glycerol and purify the soap. The continuous saponification process gives the best results compared to the full-boiled process. A further analysis of alternative systems of continuous sponification is carried out. These systems are DeLaval, Meccaniche Moderne and Mazzoni. The capital appraisal of these systems showed that the Mazzoni system gives the best results. It's capital outlay can be offset over the shortest period of time compared to the other two alternatives. Also it gives the highest rate of return on its initial capital outlay. Therefore it is suggested that the existing system should be replaced by a continuous saponification Mazzoni system. This can improve the overall economy of the industry.
Chiral Squaring
Creators: name: Nagy, S.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We construct the states and symmetries of N = 4 super-Yang-Mills by tensoring two N = 1 chiral multiplets and introducing two extra SUSY generators. This allows us to write the maximal N = 8 supergravity as four copies of the chiral multiplet. We extend this to higher dimensions and discuss applications to scattering amplitudes.
description: 15 pages, 1 figure , references added, updated to match version in JHEP
A classification of orbits admitting a unique invariant measure
Creators: name: Ackerman, Nathanael
name: Freer, Cameron
name: Kwiatkowska, Aleksandra
name: Patel, Rehana
Publisher: name: arXiv
Year: 2014
Subjects: subject: Logic (math.LO)
subject: Combinatorics (math.CO)
subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 03C98, 37L40, 60G09, 20B27

description: We consider the space of countable structures with fixed underlying set in a given countable language. We show that the number of ergodic probability measures on this space that are $S_\infty$-invariant and concentrated on a single isomorphism class must be zero, or one, or continuum. Further, such an isomorphism class admits a unique $S_\infty$-invariant probability measure precisely when the structure is highly homogeneous; by a result of Peter J. Cameron, these are the structures that are interdefinable with one of the five reducts of the rational linear order $(\mathbb{Q},
description: 22 pages. Small changes following referee suggestions
Predicting carcinogenicity by using batteries of dependent short-term tests
Creators: name: Margolin, B H
name: Kim, B S
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1994

description: Among the various methods for predicting carcinogenicity from a battery of short-term tests (STTs), the carcinogenicity prediction and battery selection (CPBS) procedure is the most prominent. A major assumption of CPBS is that the STTs used in the prediction are conditionally independent. Results of recent National Toxicology Program studies of four commonly used in vitro STTs contradict this assumption, thereby necessitating modification of CPBS to accommodate dependencies. This is accomplished via log-linear modeling, which then also yields an important dividend: standard errors for the predicted probabilities of carcinogenicity.