cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Granulomatosis with polyangiitis in a patient with polydipsia, facial nerve paralysis, and severe otologic complaints: a case report and review of the literature
Creators: name: Koenen, Lukas
name: Elbelt, Ulf
name: Olze, Heidi
name: Zappe, Sören
name: Dommerich, Steffen
Publisher: name: Charité - Universitätsmedizin Berlin
Year: 2022
Subjects: subject: Granulomatosis with polyangiitis (D014890)
subject: Hearing loss
subject: sensorineural (D006319)
subject: Hypopituitarism (D007018)
subject: Diabetes insipidus (D003919)
subject: Facial paralysis (D005158)
subject: 600 Technik, Medizin, angewandte Wissenschaften::610 Medizin und Gesundheit::610 Medizin und Gesundheit

description: Background: Granulomatosis with polyangiitis, formerly known as Wegener granulomatosis, is a necrotizing vasculitis with granulomatous inflammation that belongs to the class of antineutrophil cytoplasmic antibodies-positive diseases. It occurs in a localized and a systemic form and may present with a variety of symptoms. Involvement of the upper respiratory tract is very common, while neurologic, endocrinological, and nephrological dysfunction may occur. Case presentation: We describe the case of a 29-year-old Central European male patient presenting with severe bilateral sensorineural hearing loss, otorrhea, and one-sided facial nerve paralysis. The patient was unsuccessfully treated with i.v. antibiotics at another hospital in Berlin, and tympanic tubes were inserted. After presentation to our emergency room, he was hospitalized and further diagnostics started. Increased fluid intake and 12 kg weight gain over the last months were reported. The patient was diagnosed with granulomatosis with polyangiitis and diabetes insipidus. The patient's condition improved after treatment with rituximab. Discussion: A comprehensive PubMed search of all articles with granulomatosis with polyangiitis and diabetes insipidus was conducted to assess which combination of symptoms occurs simultaneously and whether other parts of the pituitary are commonly involved. The 39 selected articles, describing 61 patients, showed that ear-nose-throat involvement occurred most commonly, in 71% of cases. Of patients, 59% had involvement of the anterior pituitary gland, while true panhypopituitarism occurred in 13% of cases. Only one case report featured the same set of symptoms as described herein. Conclusion: Granulomatosis with polyangiitis is a highly variable disease, commonly involving the upper airways, but that may present with symptoms solely related to the pituitary gland. Clinicians should have a low threshold to investigate for granulomatosis with polyangiitis in patients with therapy-resistant otorrhea. Patients may present with a complex set of symptoms, and integrating different specialists when additional symptoms occur may lead to faster diagnosis.
Dynamic Transitions in Small World Networks: Approach to Equilibrium
Creators: name: Gade, Prashant M.
name: Sinha, Sudeshna
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Cellular Automata and Lattice Gases (nlin.CG)
subject: FOS: Physical sciences

description: We study the transition to phase synchronization in a model for the spread of infection defined on a small world network. It was shown (Phys. Rev. Lett. {\bf 86} (2001) 2909) that the transition occurs at a finite degree of disorder $p$, unlike equilibrium models where systems behave as random networks even at infinitesimal $p$ in the infinite size limit. We examine this system under variation of a parameter determining the driving rate, and show that the transition point decreases as we drive the system more slowly. Thus it appears that the transition moves to $p=0$ in the very slow driving limit, just as in the equilibrium case.
description: 8 pages, 2 figures
Nickel Challenge In Vitro Affects CD38 and HLA-DR Expression in T Cell Subpopulations from the Blood of Patients with Nickel Allergy
Creators: name: Artuc, Metin
name: Zuberbier, Torsten
name: Peiser, Matthias
Publisher: name: Freie Universität Berlin
Year: 2024
Subjects: subject: nickel allergy
subject: lymphocytes
subject: cytotoxic T cells
subject: T helper cells
subject: phenotyping
subject: flow cytometry
subject: 500 Naturwissenschaften und Mathematik::540 Chemie::540 Chemie und zugeordnete Wissenschaften

description: Nickel allergy is a major health problem and shows clinical manifestation of contact eczema. The response of specific lymphocyte subpopulations in sensitized patients after new challenge to nickel has until now not been studied in detail. To evaluate if nickel-based elicitation reaction could be objectively identified by multi-parametric flow cytometry, immunophenotyping of specific T cells was applied. White blood cells from 7 patients (4 positive in patch test, 3 negative) were challenged by nickel and in vitro short-term culture. Standardized antibody-dye combinations, specific for T helper(h)1, Th17 and cytotoxic T cell activation, were selected according to the recommendations of Stanford Human Immune Monitoring Center. In cytotoxic CD8+CCR7+CD45RA+ T cells from patients suffering from nickel allergy, CD38 and HLA-DR were elevated comparing to healthy donors. After challenge to nickel in vitro both markers decreased in CD8+CCR7+CD45RA+ T cells but found up-regulated in CD4+CCR7+CD45RA+CCR6−CXCR3+Th1 cells. Intracellular expression of T-bet and RORγt further indicated Th1 and Th17 cells. Finally, CD4+CD25+CCR4− T cells increased after challenge with nickel in PBMCs of patients with nickel allergy. Flow cytometry based quantification of T cell markers might be used as a specific and reliable method to detect chemical induced skin sensitization and confirm diagnostic patch testing in the clinics.
Replication kit for: static source code metrics and static analysis warnings for fine-grained just-in-time defect prediction
Creators: name: Trautsch, Alexander
name: Herbold, Steffen
name: Grabowski, Jens
Publisher: name: Zenodo
Year: 2020

description: This replication kit is a combination of multiple datasets and repositories needed to replicate our results. - smartshark-mongodb-rel1.gz is the dump of the MongoDB which contains the repositories of all study subjects and all metrics and static analysis warnings collected via SmartSHARK. - Gierlappen-1.0.0.tar.gz is the mining tool which extracts fine-grained just-in-time defect prediction data from the repositories and the MongoDB. The current version can be found here. - icsme2020_mining_data.zip contains the extracted data from Gierlappen. - icsme_2020_replication_kit-1.0.0.tar.gz contains the Jupyter Notebooks to train and evaluate the models used in the paper, it also contains all code to generate plots and the cost model evaluation. Also available here. To reproduce the models and evaluations used in the paper you only need icsme_2020_replication_kit-1.0.0.tar.gz and icsme2020_mining_data.zip. Everything is explained in the README which is also available online.
Inelastic Diffraction at Heavy Ion Colliders
Creators: name: White, Sebastian N.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The heavy ion physics approach to global event characterization has led us to instrument the forward region in the PHENIX experiment at RHIC. In heavy ion collisions this coverage yields a measurement of the "spectator" energy and its distribution about the beam direction. This energy flow is the basis of event-by-event determination of the centrality and reaction plane which are key to analyzing particle production in heavy ion collisions. These same tools have also enabled a unique set of measurements on inelastic diffraction with proton, deuteron and gold ion beams in the PHENIX experiment. We present first new results on this topic and discuss briefly the opportunity for diffractive physics with Heavy Ion beams at the LHC.
description: RHIC overview talk presented at "Diffraction 2004" in Dorgali, Sardegna, Italy
RETURN MIGRATION AS AN INDIVIDUAL'S OPTIMAL UTILITY MAXIMIZING BEHAVIOR
Creators: name: Li, Yang
name: Huffman, Wallace E.
name: Li, Yang
name: Huffman, Wallace E.
Publisher: name: Unknown
Year: 2000
Subjects: subject: Labor and Human Capital
subject: Migration
subject: return migration
subject: United States
subject: Puerto Rico
subject: hazard functions
subject: local amenities

description: Abstract: This paper presents a model of location decisions of a multi-period, finite-life, utility maximizing individual and an empirical hazard rate analysis of return migration for Puerto Rican born males who worked in the United States during the 1980s. A potential migrant is assumed to consume leisure, purchased goods, and local amenities and to be retired in his final period of life. We show that it is optimal for him to migrate in the first period or to never migrate. Given that migration occurs, return migration is likely when he retires from the labor market. The reason is local amenities, including nearness to family, friendly culture, pleasant climate, and familiar places, which are complementary with leisure, weigh heavily in consumption decisions at this time. In the hazard rate analysis, we find that factors affecting wage differentials between the United States and Puerto Rico play a role, but the strongly convex effect of an individual's age on his hazard rate for return migration supports the hypothesis of returning home in retirement to consumer home-country amenities. However, the hazard of return migration is concave duration dependent.
Joint separable numerical range and bipartite entanglement witness
Creators: name: Wu, Pan
name: Tang, Runhua
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Quantum Algebra (math.QA)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: In 2017 an idea considering a pair of Hermitian operators of product form was published, which is called ultrafine entanglement witnessing. In 2018 some rigorous results were given. Here we improve their work. First we point this idea can be directly derived from an earlier concept named joint separable numerical range and explain how it works as a series of witnesses. Second by a simple method we present a sufficient condition for an effective pair. Finally we prove this condition is necessary for optimization.
description: Linear algebra
FoxP3 expression by retinal pigment epithelial cells: transcription factor with potential relevance for the pathology of age-related macular degeneration
Creators: name: Alfaar, Ahmad Samir
name: Stürzbecher, Lucas
name: Diedrichs-Möhring, Maria
name: Lam, Marion
name: Roubeix, Christophe
name: Ritter, Julia
name: Schumann, Kathrin
name: Annamalai, Balasubramaniam
name: Pompös, Inga-Marie
name: Rohrer, Bärbel
name: Sennlaub, Florian
name: Reichhart, Nadine
name: Wildner, Gerhild
name: Strauß, Olaf
Publisher: name: Charité - Universitätsmedizin Berlin
Year: 2022
Subjects: subject: IL-1 beta
subject: Ca-channels
subject: CRISPR
subject: Cas9
subject: Phosphorylation
subject: RPE
subject: Age-related macular degeneration
subject: FoxP3
subject: Immune barrier
subject: Immune privilege of the retina
subject: 600 Technik, Medizin, angewandte Wissenschaften::610 Medizin und Gesundheit::610 Medizin und Gesundheit

description: Background: Forkhead-Box-Protein P3 (FoxP3) is a transcription factor and marker of regulatory T cells, converting naive T cells into Tregs that can downregulate the effector function of other T cells. We previously detected the expression of FoxP3 in retinal pigment epithelial (RPE) cells, forming the outer blood-retina barrier of the immune privileged eye. Methods: We investigated the expression, subcellular localization, and phosphorylation of FoxP3 in RPE cells in vivo and in vitro after treatment with various stressors including age, retinal laser burn, autoimmune inflammation, exposure to cigarette smoke, in addition of IL-1 beta and mechanical cell monolayer destruction. Eye tissue from humans, mouse models of retinal degeneration and rats, and ARPE-19, a human RPE cell line for in vitro experiments, underwent immunohistochemical, immunofluorescence staining, and PCR or immunoblot analysis to determine the intracellular localization and phosphorylation of FoxP3. Cytokine expression of stressed cultured RPE cells was investigated by multiplex bead analysis. Depletion of the FoxP3 gene was performed with CRISPR/Cas9 editing. Results: RPE in vivo displayed increased nuclear FoxP3-expression with increases in age and inflammation, long-term exposure of mice to cigarette smoke, or after laser burn injury. The human RPE cell line ARPE-19 constitutively expressed nuclear FoxP3 under non-confluent culture conditions, representing a regulatory phenotype under chronic stress. Confluently grown cells expressed cytosolic FoxP3 that was translocated to the nucleus after treatment with IL-1 beta to imitate activated macrophages or after mechanical destruction of the monolayer. Moreover, with depletion of FoxP3, but not of a control gene, by CRISPR/Cas9 gene editing decreased stress resistance of RPE cells. Conclusion: Our data suggest that FoxP3 is upregulated by age and under cellular stress and might be important for RPE function.
Observational quantification of three-dimensional anisotropies and scalings of space plasma turbulence at kinetic scales
Creators: name: Wang, Tieyan
name: He, Jiansen
name: Alexandrova, Olga
name: Dunlop, Malcolm
name: Perrone, Denise
Publisher: name: arXiv
Year: 2020
Subjects: subject: Space Physics (physics.space-ph)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Fluid Dynamics (physics.flu-dyn)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: A statistical survey of spectral anisotropy of space plasma turbulence is performed using five years measurements from MMS in the magnetosheath. By measuring the five-point second-order structure functions of the magnetic field, we have for the first time quantified the three-dimensional anisotropies and scalings at sub-ion-scales ($
description: Accepted
Gravitational ultrarelativistic spin-orbit interaction and the weak equivalence principle
Creators: name: Plyatsko, Roman
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: It is shown that the gravitational ultrarelativistic spin-orbit interaction violates the weak equivalence principle in the traditional sense. This fact is a direct consequence of the Mathisson-Papapetrou equations in the frame of reference comoving with a spinning test particle. The widely held assumption that the deviation of a spinning test body from a geodesic trajectory is caused by tidal forces is not correct
description: 12 pages
On Designing a Machine Learning Based Wireless Link Quality Classifier
Creators: name: Cerar, Gregor
name: Yetgin, Halil
name: Mohorčič, Mihael
name: Fortuna, Carolina
Publisher: name: arXiv
Year: 2020
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: Ensuring a reliable communication in wireless networks strictly depends on the effective estimation of the link quality, which is particularly challenging when propagation environment for radio signals significantly varies. In such environments, intelligent algorithms that can provide robust, resilient and adaptive links are being investigated to complement traditional algorithms in maintaining a reliable communication. In this respect, the data-driven link quality estimation (LQE) using machine learning (ML) algorithms is one of the most promising approaches. In this paper, we provide a quantitative evaluation of design decisions taken at each step involved in developing a ML based wireless LQE on a selected, publicly available dataset. Our study shows that, re-sampling to achieve training class balance and feature engineering have a larger impact on the final performance of the LQE than the selection of the ML method on the selected data.
description: accepted in PIMRC 2020. arXiv admin note: text overlap with arXiv:1812.08856
TOXOPLASMA GONDII IN U.S. SWINE OPERATIONS: AN ASSESSMENT OF MANAGEMENT FACTORS
Creators: name: Hu, Xianfeng
name: Kliebenstein, James B.
name: Patton, Sharon
name: Zimmerman, Jeffrey
name: Hallam, Arne
name: Roberts, Tanya
name: Bush, Eric J.
name: Hu, Xianfeng
name: Kliebenstein, James B.
name: Patton, Sharon
name: Zimmerman, Jeffrey
name: Hallam, Arne
name: Roberts, Tanya
name: Bush, Eric J.
Publisher: name: Unknown
Year: 1997
Subjects: Livestock Production/Industries

description: Sera from hogs were analyzed using the modified direct agglutination test (MAT). Serum samples were collected from sows which were part of the National Animal Health Monitoring System (NAHMS) swine survey. The blood sera on file represented 394 randomly selected hog farms throughout the United States. Additionally, the NAHMS survey included information on type of production facilities and level of cat, dog, or bird access to the facilities. Of the sows tested 19 percent tested positive for toxoplasmosis. This study showed a positive relationship between sows or herds testing positive for Toxoplasma gondii and three factors: 1) method of rodent control, 2) type of production facility, and 3) access of certain animals (cats, dogs, birds) to production facilities. These data indicate that it will be difficult to eliminate T. gondii from swine herds which allow cat or dog access to facilities. Use of cats as a method of rodent control should be discouraged. We found a strong association between use of "bait only" for rodent control and the herd testing negative as compared to the use of "cats only" for rodent control. Greater industry awareness is needed for methods of rodent control through the use of baits. Sows in herds where female replacements were raised internally were significantly more likely to test positive for toxoplasmosis. Sows in confinement facilities had a significantly lower prevalence of Toxoplasma gondii. Herds testing positive were significantly smaller than those which were negative. In general, there were not any regional differences in prevalence rates. Sows testing positive did not have a reduced level of productivity.
Dynamic positive column in long-gap barrier discharges
Creators: name: Shvydky, A.
name: Khudik, V. N.
name: Nagorny, V. P.
name: Theodosiou, C. E.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: A simple analytical model of the barrier discharge in a long gap between opposing plane electrodes is developed. It is shown that the plasma density becomes uniform over large part of the gap in the course of the discharge development, so that one can speak of a formation of a dynamic positive column. The column completely controls the dynamics of the barrier discharge and determines such characteristics as the discharge current, discharge duration, light output, etc. Using the proposed model, all discharge parameters can be easily evaluated
description: 7 pages, 8 figures; submitted to the Journal of Applied Physics
Traces of Canine Inflammatory Bowel Disease Reflected by Intestinal Organoids
Creators: name: Pratscher, Barbara
name: Kuropka, Benno
name: Csukovich, Georg
name: Doulidis, Pavlos G.
name: Spirk, Katrin
name: Kramer, Nina
name: Freund, Patricia
name: Rodríguez-Rojas, Alexandro
name: Burgener, Iwan A.
Publisher: name: Freie Universität Berlin
Year: 2024
Subjects: subject: canine IBD
subject: IBD
subject: inflammatory bowel diseases
subject: organoid
subject: chronic enteropathy
subject: disease modeling
subject: 500 Naturwissenschaften und Mathematik::540 Chemie::540 Chemie und zugeordnete Wissenschaften

description: Inflammatory bowel disease (IBD) is a chronic inflammatory condition that affects humans and several domestic animal species, including cats and dogs. In this study, we have analyzed duodenal organoids derived from canine IBD patients using quantitative proteomics. Our objective was to investigate whether these organoids show phenotypic traits of the disease compared with control organoids obtained from healthy donors. To this aim, IBD and control organoids were subjected to quantitative proteomics analysis via liquid chromatography–mass spectrometry. The obtained data revealed notable differences between the two groups. The IBD organoids exhibited several alterations at the levels of multiple proteins that are consistent with some known IBD alterations. The observed phenotype in the IBD organoids to some degree mirrors the corresponding intestinal condition, rendering them a compelling approach for investigating the disease and advancing drug exploration. Additionally, our study revealed similarities to some human IBD biomarkers, further emphasizing the translational and comparative value of dogs for future investigations related to the causes and treatment of IBD. Relevant proteins such as CALU, FLNA, MSN and HMGA2, which are related to intestinal diseases, were all upregulated in the IBD duodenal organoids. At the same time, other proteins such as intestinal keratins and the mucosal immunity PIGR were depleted in these IBD organoids. Based on these findings, we propose that these organoids could serve as a valuable tool for evaluating the efficacy of therapeutic interventions against canine IBD.
Pilot-scale, on-site investigation of crushed recycled glass as tertiary filter media for municipal lagoon wastewater treatment
Creators: name: Salzmann, Rena D.
name: Ackerman, Joe N.
name: Cicek, Nazim
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biophysics
subject: Space Science
subject: Medicine
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Marine Biology
subject: Science Policy
subject: 60506 Virology

description: Glass recycling is a process that faces many obstacles, especially in the closed-loop context. Waste glass separation and transportation can become quite expensive, turning glass collection for remanufacture unfeasible. For this reason, it is important that alternative markets for waste glass are sought. This study evaluated crushed recycled glass as tertiary media in subsurface pilot-scale filters for on-site municipal wastewater treatment, using control sand media filters. Filters were operated over 128 days at a 24-h hydraulic retention time, treating secondary lagoon effluent from the rural municipality of Dunnottar, Manitoba, Canada. Crushed recycled glass filters removed 92%, 90% and 45% of the total suspended solids (TSS), ammonium nitrogen (NH4 +–N) and chemical oxygen demand (COD), respectively. Total suspended solids were removed equally well in sand and crushed recycled glass filters (α = 0.05), whereas NH4 +–N and COD reductions were 10% and 21% greater in sand media, respectively. Both sand and crushed recycled glass filters failed to achieve phosphorus (P) discharge guidelines. This study shows that there is potential for crushed recycled glass in wastewater filtration, especially to achieve TSS, COD and NH4 +–N removal. Small communities served by waste stabilization ponds could benefit from glass media filters, as waste glass could be diverted from curbside collection and utilized locally to polish municipal lagoon effluent.
Image Stitching Based on Planar Region Consensus
Creators: name: Li, Aocheng
name: Guo, Jie
name: Guo, Yanwen
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Image stitching for two images without a global transformation between them is notoriously difficult. In this paper, noticing the importance of planar structure under perspective geometry, we propose a new image stitching method which stitches images by allowing for the alignment of a set of matched dominant planar regions. Clearly different from previous methods resorting to plane segmentation, the key to our approach is to utilize rich semantic information directly from RGB images to extract planar image regions with a deep Convolutional Neural Network (CNN). We specifically design a new module to make fully use of existing semantic segmentation networks to accommodate planar segmentation. To train the network, a dataset for planar region segmentation is contributed. With the planar region knowledge, a set of local transformations can be obtained by constraining matched regions, enabling more precise alignment in the overlapping area. We also use planar knowledge to estimate a transformation field over the whole image. The final mosaic is obtained by a mesh-based optimization framework which maintains high alignment accuracy and relaxes similarity transformation at the same time. Extensive experiments with quantitative comparisons show that our method can deal with different situations and outperforms the state-of-the-arts on challenging scenes.
description: 15 pages, 9 figures
GM FOOD LABELING POLICIES OF THE U.S. AND ITS TRADING PARTNERS
Creators: name: Rousu, Matthew C.
name: Huffman, Wallace E.
name: Rousu, Matthew C.
name: Huffman, Wallace E.
Publisher: name: Unknown
Year: 2001
Subjects: subject: Marketing
subject: FOS: Economics and business
subject: Research and Development/Tech Change/Emerging Technologies
subject: Agricultural policy
subject: GM foods
subject: labeling
subject: trade

description: Much of the international controversy of GM foods is due to labeling policies. Countries around the world have chosen different policies to label GM foods. We examine the labeling policies of several areas: the United States, the European Union, Australia, Japan, Canada, and China. We discuss each country's GM labeling policy, along with a brief history of how each country arrived at their current policy. We conclude by discussing how different policies are due to different ethical concerns of GM foods, along with the difference in perceived risks GM foods pose to health, the environment, and trade.
UVA/persulfate-driven nonylphenol polyethoxylate degradation: effect of process conditions
Creators: name: R. F. Nunes
name: F. K. Tominaga
name: S. I. Borrely
name: A. C. S. C. Teixeira
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Microbiology
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
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified

description: UV/persulfate (UV/PS) technologies have gained increased attention as efficient alternatives for removing pollutants from different classes, although processes based on the UVA-driven S2O82− (PS) activation have not yet been discussed in the literature for the removal of the nonionic surfactant nonylphenol polyethoxylate (NPEO). The present study investigated the simultaneous effect of the initial persulfate concentration ([PS]0) and specific photon emission rate (E P,0) on NPEO degradation by UVA/PS following a Doehlert experimental design. The results for [NPEO]0 = (4.65 ± 0.15) mg L−1 indicated more than 97.8% NPEO removal after 2 h, with pseudo first-order specific degradation rate (k obs) of 0.0320 min−1, for [PS]0 = 7.75 mmol L−1 and E P,0 = 0.437 μmol photons L−1 s−1. Under these conditions, NPEO half-life time was about 22 min, and the EC50-48 h (% v/v) values for Daphnia similis before and after treatment did not differ significantly. Higher values of E P,0 would influence NPEO removal for [PS]0 not higher than 8–10 mmol L−1, although lower degradation efficiencies were obtained with higher [NPEO]0 or real wastewater, except for longer reaction times. Additionally, UVA/PS showed to be efficient for tensoactivity removal, despite the negligible total organic carbon (TOC) removal achieved. Finally, UVC and UVA resulted in NPEO degradation higher than 96% and similar tensoactivity removals when UVA/PS was conducted under optimal conditions ([PS]0 = 10 mmol L−1; E P,0 = 0.324 μmol photons L−1 s−1), suggesting that UVA radiation available in solar light could be advantageously employed for NPEO removal at concentrations usually found in wastewater.
Substitutional Doping of Symmetrical Small Fullerene Dimers
Creators: name: Kaur, Sandeep
name: Sharma, Amrish
name: Sharma, Hitesh
name: Dhiman, Shobhna
name: Mudahar, Isha
Publisher: name: arXiv
Year: 2020
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Magnetic carbon nano-structures have potential applications in the field of spintronics as they exhibit valuable magnetic properties. Symmetrically sized small fullerene dimers are substitutional doped with nitrogen (electron rich) and boron (electron deficient) atoms to visualize the effect on their magnetic properties. Interaction energies suggests that the resultant dimer structures are energetically favourable and hence can be formed experimentally. There is significant change in the total magnetic moment of dimers of the order of 0.5 uB after the substitution of C atoms with N and B, which can also be seen in the change of density of states. The HOMO-LUMO gaps of spin up and spin down electronic states have finite energy difference which confirm their magnetic behaviour, whereas for non-magnetic doped dimers, the HOMO-LUMO gaps for spin up and down states are degenerate. The optical properties show that the dimers behave as optical semiconductors and are useful in optoelectronic devices. The induced magnetism in these dimers makes them fascinating nanocarbon magnetic materials.
Viscous generalized Chaplygin gas
Creators: name: Zhai, Xiang-hua
name: Xu, You-dong
name: Li, Xin-zhou
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Viscous GCG(generalized Chaplygin gas) cosmology is discussed, assuming that there is bulk viscosity in the barotropic fluid and GCG. The dynamical analysis indicates that the phase $w_g=-1+\sqrt{3}γκτ_{g}/(γ-\sqrt{3}κτ_γ)$ is a dynamical attractor and the equation of state of GCG approaches it from either $w_g>-1$ or $w_g\sqrt{3}κτ_γ/(1-\sqrt{3}κτ_{g})$ and $0
description: 8 pages, 5 eps figures, typos corrected
Second and third harmonics generation by coherent sub-THz radiation at induced Lifshitz transitions in gapped bilayer graphene
Creators: name: Ghazaryan, A. G.
name: Matevosyan, H. H.
name: Sedrakian, Kh. V.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Using the microscopic nonlinear quantum theory of interaction of strong coherent electromagnetic radiation with a gapped bilayer graphene is developed for high harmonic generation at low-energy photon excitation-induced Lifshitz transitions. The Liouville-von Neumann equation for the density matrix is solved numerically at the nonadiabatic multiphoton excitation regime. By numerical solutions, we examine the rates of the second and third harmonics generation at the particle-hole annihilation in induced Lifshitz transitions by the two linearly polarized coherent electromagnetic waves propagating in opposite directions. The obtained results show that the gapped bilayer graphene can serve as an effective medium for generation of even and odd high harmonics in the sub-THz domain of frequencies.
description: 15 pages, 5 figures. arXiv admin note: text overlap with arXiv:1905.08016; text overlap with arXiv:1508.02922 by other authors
Are intravitreal injections essential during the COVID-19 pandemic? Global preferred practice patterns and practical recommendations
Creators: name: Tan, Anna C. S.
name: Schwartz, R.
name: Anaya, D.
name: Chatziralli, I.
name: Yuan, M.
name: Cicinelli, M. V.
name: Faes, L.
name: Mustapha, M.
name: Phasukkijwatana, Nopasak
name: Pohlmann, Dominika
name: Reynolds, Rhianon
name: Rosenblatt, Amir
name: Savastano, A.
name: Touhami, S.
name: Vaezi, K.
name: Ventura, Camila V.
name: Vogt, D.
name: Ambati, Jayakrishna
name: Smet, M. D. De
name: Loewenstein, A.
name: International Retina Collaborative
Publisher: name: Charité - Universitätsmedizin Berlin
Year: 2022
Subjects: subject: COVID-19
subject: Intravitreal injections
subject: Age-related macular degeneration
subject: Diabetic macula edema
subject: Practice patterns
subject: Recommendations
subject: 600 Technik, Medizin, angewandte Wissenschaften::610 Medizin und Gesundheit::610 Medizin und Gesundheit

description: Tertiary outpatient ophthalmology clinics are high-risk environments for COVID-19 transmission, especially retina clinics, where regular follow-up is needed for elderly patients with multiple comorbidities. Intravitreal injection therapy (IVT) for chronic macular diseases, is one of the most common procedures performed, associated with a significant burden of care because of the vigorous treatment regimen associated with multiple investigations. While minimizing the risk of COVID-19 infection transmission is a priority, this must be balanced against the continued provision of sight-saving ophthalmic care to patients at risk of permanent vision loss. This review aims to give evidence-based guidelines on managing IVT during the COVID-19 pandemic in common macular diseases such as age-related macular degeneration, diabetic macula edema and retinal vascular disease and to report on how the COVID-19 pandemic has affected IVT practices worldwide. To illustrate some real-world examples, 18 participants in the International Retina Collaborative, from 15 countries and across four continents, were surveyed regarding pre- and during- COVID-19 pandemic IVT practices in tertiary ophthalmic centers. The majority of centers reported a reduction in the number of appointments to reduce the risk of the spread of COVID-19 with varying changes to their IVT regimen to treat various macula diseases. Due to the constantly evolving nature of the COVID-19 pandemic, and the uncertainty about the normal resumption of health services, we suggest that new solutions for eye healthcare provision, like telemedicine, may be adopted in the future when we consider new long-term adaptations required to cope with the COVID-19 pandemic.
Performance evaluation of microbial fuel cell using a radiation synthesized low density polyethylene-grafted-poly (glycidyl methacrylate-co-vinyl acetate) as a proton exchange membrane
Creators: name: Abd-Elmabood, Hanan M.
name: Amany I. Raafat
name: El-Sayed A. Soliman
name: Ali, Amr El-Hag
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biophysics
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Microbiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Marine Biology

description: The present work focuses on the synthesis of a proton exchange membrane to be assembled in a microbial fuel cell (MFC) for simultaneous bioelectricity production and domestic wastewater treatment. The indigenous membrane was prepared by ionizing irradiation-induced graft copolymerization of glycidyl methacrylate (GMA) and vinyl acetate (VAc) onto low-density polyethylene and subsequently, the prepared grafted sheets were sulfonated via epoxy ring-opening of PGMA moieties. Parameters affecting the grafting degree were investigated and the prepared membranes were characterized by investigating their structural, thermal, mechanical, and electrical properties. Some physicochemical characteristics including ion exchange capacity, sulfonation density, and proton conductivity were also evaluated. The data confirmed the success of the preparation protocol to obtain a suitable membrane for the proposed application. Moreover, the performance of the assembled MFC was thoroughly investigated through the evaluation of its electrochemical behaviour including cyclic voltammetry, electrochemical impedance spectroscopy, columbic efficiency, and wastewater treatment capability. The sulfonated LDPE-g-P(GMA-co-VAc) membrane of 80% grafting degree shows substantial removal of chemical oxygen demand up to about 90% with columbic efficiency of 10.1%, columbic recovery of 8.7%, rate of energy harvest of 2.1 C/h and power density of 2.72 W m−2. However, the use of 10 mM of KMnO4 as electron acceptor drastically increase the harvested power density to reach 356.4 W m−2
Quantum Teleportation with Imperfect Quantum Dots
Creators: name: Basset, Francesco Basso
name: Salusti, Francesco
name: Schweickert, Lucas
name: Rota, Michele B.
name: Tedeschi, Davide
name: da Silva, Saimon F. Covre
name: Roccia, Emanuele
name: Zwiller, Val
name: Jöns, Klaus D.
name: Rastelli, Armando
name: Trotta, Rinaldo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Efficient all-photonic quantum teleportation requires fast and deterministic sources of highly indistinguishable and entangled photons. Solid-state-based quantum emitters--notably semiconductor quantum dots--are a promising candidate for the role. However, despite the remarkable progress in nanofabrication, proof-of-concept demonstrations of quantum teleportation have highlighted that imperfections of the emitter still place a major roadblock in the way of applications. Here, rather than focusing on source optimization strategies, we deal with imperfections and study different teleportation protocols with the goal of identifying the one with maximal teleportation fidelity. Using a quantum dot with sub-par values of entanglement and photon indistinguishability, we show that the average teleportation fidelity can be raised from below the classical limit to 0.842(14). Our results, which are backed by a theoretical model that quantitatively explains the experimental findings, loosen the very stringent requirements set on the ideal entangled-photon source and highlight that imperfect quantum dots can still have a say in teleportation-based quantum communication architectures.
description: 12 pages, 5 figures
PRIVATE R&D INVESTMENTS IN AGRICULTURE: THE ROLE OF INCENTIVES AND INSTITUTIONS
Creators: name: Alfranca, Oscar
name: Huffman, Wallace E.
name: Alfranca, Oscar
name: Huffman, Wallace E.
Publisher: name: Unknown
Year: 1999
Subjects: subject: Research and Development/Tech Change/Emerging Technologies
subject: private R&D
subject: incentives
subject: institutions
subject: property rights
subject: European Union
subject: agriculture
subject: spillovers

description: This paper presents econometric evidence of the effects of economic incentives and institutions on national aggregate private agricultural R&D investments. A model is proposed and fitted to annual data for seven European Union countries, 1984-1995. We find strong impacts of both incentives and institutions on private agricultural R&D investment, and including institutional factors strengthens the story and in some cases changes greatly the results. In particular, we reject the hypothesis that quality of property rights does not matter. We find that stronger contract enforcement, more efficient public bureaucracies, and stronger patent rights lead to larger aggregate private agricultural R&D investment, other things equal. Furthermore, we show that the impact of a country's patent rights on private agricultural R&D investment is amplified by it also having a more efficient public bureaucracy and a larger stock of agricultural higher education capital. We also find evidence of public R&D crowding-out private agricultural R&D, which does support recent privatization policies. Inter-country private R&D spillins increase national agricultural R&D investment.
Is Blockchain Suitable for Data Freshness? -- Age-of-Information Perspective
Creators: name: Lee, Sungho
name: Kim, Minsu
name: Lee, Jemin
name: Hsu, Ruei-Hau
name: Quek, Tony Q. S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences
subject: C.4.0

description: Recent advances in blockchain have led to a significant interest in developing blockchain-based applications. While data can be retained in blockchains, the stored values can be deleted or updated. From a user viewpoint that searches for the data, it is unclear whether the discovered data from the blockchain storage is relevant for real-time decision-making process for blockchain-based application. The data freshness issue serves as a critical factor especially in dynamic networks handling real-time information. In general, transactions to renew the data require additional processing time inside the blockchain network, which is called ledger-commitment latency. Due to this problem, some users may receive outdated data. As a result, it is important to investigate if blockchain is suitable for providing real-time data services. In this article, we first describe blockchain-enabled (BCE) networks with Hyperledger Fabric (HLF). Then, we define age of information (AoI) of BCE networks and investigate the influential factors in this AoI. Analysis and experiments are conducted to support our proposed framework. Lastly, we conclude by discussing some future challenges.
description: 7 pages, 6 figures; This paper is under review in IEEE Network Magazine
On representations of variants of semigroups
Creators: name: Kudryavtseva, Ganna
name: Maltcev, Victor
Publisher: name: arXiv
Year: 2006
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 20M10, 20M30

description: We construct a family of representations of an arbitrary variant $S_a$ of a semigroup $S$, induced by a given representation of $S$, and investigate properties of such representations and their kernels.
description: 12 pages
HOW MANY IOWA COMMERCIAL FARM BUSINESSES WILL SURVIVE UNTIL 2000?
Creators: name: Jolly, Robert W.
name: Jolly, Robert W.
Publisher: name: Unknown
Year: 1998
Subjects: Farm Management

description: This study of farm financial conditions in Iowa indicates the potential for significant and widespread financial stress exists should commodity prices remain 15 to 30 percent below 1997 average levels. This isn't a repeat of the 1980s when farmers struggled with excessive debt, high interest rates and crashing asset values -- but the potential for increased financial stress is very real. This study is based on financial information obtained from members of the Iowa Farm Business Association.
FADS VERSUS FUNDAMENTALS IN FARMLAND PRICES
Creators: name: Falk, Barry
name: Lee, Bong-Soo
name: Falk, Barry
name: Lee, Bong-Soo
Publisher: name: Unknown
Year: 1996
Subjects: Land Economics/Use

description: This paper develops an approach to decompose farmland price time series into three components: permanent fundamental component, temporary fundamental component, and nonfundamental component. This decomposition is useful for studying the importance of fundamental versus nonfundamental factors in explaining farmland price behavior and the dynamic response of farmland price to shocks to each of these components, among other issues. The approach is applied to annual Iowa farmland prices over the 1992-1994 sample period. Note: Tables and figures are NOT included in the machine readable copy of Staff Paper 281. Contact the author for copies.
On the non-V-representability of currents in time-dependent many particle systems
Creators: name: D'Agosta, Roberto
name: Vignale, Giovanni
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We argue that an arbitrarily chosen time-dependent current density is generically non-Vrepresentable in a many-particle system, i.e., it cannot be obtained by applying only a time dependent scalar potential to the system. Furthermore we show by a concrete example that even a current that is V-representable in an interacting many-particle system may (and in general will) turn out to be non-V-representable when the interaction between the particles is turned off.
description: 6 pages, 1 figure, RevTex 4, submitted to Phys. Rev. B
AN OVERVIEW OF IMMIGRATION AND THE CHANGING FACE OF RURAL CALIFORNIA: THE CENTRAL SAN JOAQUIN VALLEY
Creators: name: Huffman, Wallace E.
name: Huffman, Wallace E.
Publisher: name: Unknown
Year: 1999
Subjects: subject: Labor and Human Capital
subject: agriculture
subject: immigration
subject: raisin grapes
subject: farm workers
subject: schools
subject: schooling
subject: small town
subject: California

description: This paper examines the aggregate performance of California agriculture relative to Florida and U.S. agriculture, 1960-1993, the economics of the California raisin grape industry which uses large quantities of migratory labor for the grape harvest, and schools and schooling of farm workers' children in the Parlier area. The major conclusions are that the labor intensity of California (and Florida) agriculture has fallen much less than for the whole U.S., the raisin grape industry of the Central San Joaquin Valley is struggling due to labor availability and prospects of greater foreign competition, and schooling is one of the most promising routes to a better life for the children of adult farm workers.
The complexity of class polynomial computation via floating point approximations
Creators: name: Enge, Andreas
Publisher: name: arXiv
Year: 2006
Subjects: subject: Numerical Analysis (math.NA)
subject: Symbolic Computation (cs.SC)
subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: We analyse the complexity of computing class polynomials, that are an important ingredient for CM constructions of elliptic curves, via complex floating point approximations of their roots. The heart of the algorithm is the evaluation of modular functions in several arguments. The fastest one of the presented approaches uses a technique devised by Dupont to evaluate modular functions by Newton iterations on an expression involving the arithmetic-geometric mean. It runs in time $O (|D| \log^5 |D| \log \log |D|) = O (|D|^{1 + ε}) = O (h^{2 + ε})$ for any $ε> 0$, where $D$ is the CM discriminant and $h$ is the degree of the class polynomial. Another fast algorithm uses multipoint evaluation techniques known from symbolic computation; its asymptotic complexity is worse by a factor of $\log |D|$. Up to logarithmic factors, this running time matches the size of the constructed polynomials. The estimate also relies on a new result concerning the complexity of enumerating the class group of an imaginary-quadratic order and on a rigorously proven upper bound for the height of class polynomials.