cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Warm Absorber Diagnostics of AGN Dynamics
Creators: name: Kallman, T.
name: Dorodnitsyn, A.
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Warm absorbers and related phenomena are one of the observable manifestations of outflows or winds from active galactic nuclei (AGN). Warm absorbers are common in low luminosity AGN, they have been extensively studied observationally, and are well described by simple phenomenological models. However, major open questions remain: What is the driving mechanism? What is the density and geometrical distribution? How much associated fully ionized gas is there? What is the relation to the quasi-relativistic 'ultrafast outflows' (UFOs)? In this paper we present synthetic spectra for the observable properties of warm absorber flows and associated quantities. We use ab initio dynamical models, i.e. solutions of the equations of motion for gas in finite difference form. The models employ various plausible assumptions for the origin of the warm absorber gas and the physical mechanisms affecting its motion. The synthetic spectra are presented as an observational test of these models. In this way we explore various scenarios for warm absorber dynamics. We show that observed spectra place certain requirements on the geometrical distribution of the warm absorber gas, and that not all dynamical scenarios are equally successful at producing spectra similar to what is observed.
description: 10 pages, 9 figures, emulateapj, Accepted for publication in the Astrophysical Journal
title: Gymnasium, Palaestra, Campus and Bathing in Late Hellenistic Pompeii
title: A Reassessment of the Urban Context of the Republican Baths (VIII 5, 36)
titleType: Subtitle
Creators: name: Trümper, Monika
Publisher: name: Freie Universität Berlin
Year: 2018
Subjects: subject: Pompeii
subject: Foro Triangolare
subject: gymnasium
subject: campus
subject: Samnite Palaestra
subject: Republican Baths
subject: Gymnasium
subject: Samnitische Palaestra
subject: Republikanische Thermen
subject: 900 Geschichte und Geografie::930 Geschichte des Altertums (bis ca. 499), Archäologie::930 Geschichte des Altertums bis ca. 499, Archäologie

description: Das Foro Triangolare wird gewöhnlich als Ort eines athletischmilitärischen Komplexes im späthellenistischen Samnitischen Pompeji identifiziert. Benennung (gymnasium, campus, palaestra der vereiia) und Ausdehnung sind zwar umstritten, aber die Republikanischen Thermen werden einmütig als integraler konzeptioneller und funktionler Bestandteil dieses Komplexes gedeutet. Dieser Beitrag untersucht kritisch diese These, basierend auf neuen Forschungen (Topoi C-6-8 Projekt, 2015– 2017). Es wird gezeigt, dass die Republikanischen Thermen mit separaten Trakten für Männer und Frauen nicht auf öffentliche Initiative für exklusive Nutzung durch die samnitische Jugend konzipiert, sondern im 2. Jh. v. Chr. von privater Hand als profitables Investment für eine breite, zahlende Klientel errichtet wurden.
Liris alaris
Creators: name: Madl, M.
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Crabronidae
Liris
Liris alaris

description: Liris alaris (DE SAUSSURE, 1892)
 Notogonia alaris n.sp.: DE SAUSSURE 1892: 500 (key), 501 (tax.), 502 (tax.), 503 (descr., Madagascar), pl. 26 (figs 2, 2a, l-o).
 Larra (Notogonia) alaris (DE SAUSSURE, 1892): DE DALLA TORRE 1897: 661 (tax., cat.).
 Liris (Motes) alaris alaris (DE SAUSSURE, 1892): ARNOLD 1945: 119 (key), 120 (key), 125 (tax., descr., figs 95, 95a, Madagascar), 189 (biogeogr.).
 Motes alaris (DE SAUSSURE, 1892): LECLERCQ 1961c: 113 (tax., type design., Madagascar).
 Liris alaris alaris (DE SAUSSURE, 1892): BOHART & MENKE 1976: 244 (tax., cat.).
 Liris alaris alaris (DE SAUSSURE, 1892): PULAWSKI 2003: 796 (cat. Madagascar).
D i s t r i b u t i o n Madagascar: Prov. Antananarivo: Antananarivo – Prov. Toamasina: Andasibe (Perinet), Andekaleka (Rogez), Anosibe – Prov. Fianarantsoa: Ambatolahy, Ranomafana.
Endemic.
description: Published as part of Madl, M., 2014, Annotated catalogue of the Ampulicidae, Crabronidae and Sphecidae (Hymenoptera) of the Malagasy subregion, pp. 933-1039 in Linzer biologische Beiträge 46 (2) on page 966, DOI: 10.5281/zenodo.5312608
Renormalization-group running of the cosmological constant and its implication for the Higgs boson mass in the Standard Model
Creators: name: Babic, A.
name: Guberina, B.
name: Horvat, R.
name: Stefancic, H.
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The renormalization-group equation for the zero-point energies associated with vacuum fluctuations of massive fields from the Standard Model is examined. Our main observation is that at any scale the running is necessarily dominated by the heaviest degrees of freedom, in clear contradistinction with the Appelquist & Carazzone decoupling theorem. Such an enhanced running would represent a disaster for cosmology, unless a fine-tuned relation among the masses of heavy particles is imposed. In this way, we obtain $m_H \simeq 550 GeV$ for the Higgs mass, a value safely within the unitarity bound, but far above the more stringent triviality bound for the case when the validity of the Standard Model is pushed up to the grand unification (or Planck) scale.
description: 11 pages, LaTex2e
Mid-infrared (3-8 μm) $\text{Ge}_{1-y}\text{Sn}_y$ alloys (0.15 < $y$ < 0.30): synthesis, structural, and optical properties
Creators: name: Xu, Chi
name: Wallace, Patrick M.
name: Ringwala, Dhruve A.
name: Chang, Shery L. Y.
name: Poweleit, Christian D.
name: Kouvetakis, John
name: Menéndez, José
Publisher: name: arXiv
Year: 2019
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: $\text{Ge}_{1-y}\text{Sn}_y$ alloys with compositions in the 0.15 < $y$ < 0.30 range have been grown directly on Si substrates using a chemical vapor deposition approach that allows for growth temperatures as high as 290 $^{\circ}$C. The films show structural properties that are consistent with results from earlier materials with much lower Sn concentrations. These include the lattice parameter and the Ge-Ge Raman frequency, which are found to depend linearly on composition. The simplicity of the structures, directly grown on Si, makes it possible to carry out detailed optical studies. Sharp absorption edges are found, reaching 8 $μ$m near $y$ =0.3. The compositional dependence of edge energies shows a cubic deviation from the standard quadratic alloy expression. The cubic term may dramatically impact the ability of the alloys to cover the long-wavelength (8-12 $μ$m) mid-IR atmospheric window.
Zosterops lateralis subsp. investigator Mathews
Creators: name: Mary
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Aves
Passeriformes
Zosteropidae
Zosterops
Zosterops lateralis
Zosterops lateralis investigator mathews

description: Zosterops lateralis investigator Mathews
 Zosterops lateralis investigator Mathews, 1923a: 153 (New Zealand).
 Now Zosterops lateralis lateralis (Latham, 1801). See Mees, 1969: 30–70, van Balen, 2008: 467– 468, and Checklist Committee, 2010: 309–310.
 SYNTYPES: collected at Katikati, 10 m, 37.32S, 175.58E (Times Atlas), Tauranga Harbour, AMNH 701115, female, 2 August 1914, by Robin Kemp (no. 4690); collected at Lucas Creek, Waitemata, AMNH 701119, male, 2 March 1915, AMNH 701120, male, 3 February 1915, AMNH 701121, female, 27 January 1915, AMNH 701122, sex?, 25 February 1915, by Robin Kemp (nos. 4796, 4776, 4771, 4794, respectively); collected at Oneroa, Waitemata Co., AMNH 701123, juvenile sex?, 23 February 1915, by Robin Kemp (no. 4790). All were collected on the North Island, New Zealand. From the Mathews Collection via the Rothschild Collection.
 COMMENTS: Mathews (1923a: 153) did not designate a type but introduced this name with the following comments: ‘‘The New Zealand form is credited with arriving from Australia and spreading all over New Zealand. When Iredale and I (Mathews and Iredale, 1913) drew up the Reference List of the Birds of New Zealand we noted that all the New Zealand birds were like Tasmanian ones and used the name of the Tasmanian subspecies. The green of the head is becoming more restricted, the grey on the back less, the flanks darker, the breast paler, the black lores more pronounced, the throat scarcely tinged with yellow, the bill longer. Whether these changes have taken place in the last sixty years or not I cannot say, but it is necessary to provide a name to attract attention to the fact that, according to the birds examined a distinct form appears to be evolving. As above noted, only one stage of plumage has been seen, as yet, from New Zealand, viz., the so-called winter plumage.’’ This implies that the changes Mathews envisioned had occurred between 1913 and the 1923 description of investigator. The six specimens from the Mathews Collection listed above were all collected after 1913, on Kemp’s second visit to New Zealand, and I consider them syntypes; by 1914 Mathews had essentially stopped adding specimens to his catalog and none of these syntypes was found there.
description: Published as part of Mary, 2011, Type Specimens Of Birds In The American Museum Of Natural History Part 9. Passeriformes: Zosteropidae And Meliphagidae, pp. 1-193 in Bulletin of the American Museum of Natural History 2011 (348) on page 29
New lignans and diterpenoid glycosides from the fruits of Xanthium italicum Moretti
Creators: name: Li, Yu-Tong
name: Fu, Jiang
name: Wang, Hai-Qiang
name: Li, Yong
name: Liu, Yun-Bao
name: Ma, Shuang-Gang
name: Qu, Jing
name: Yu, Shi-Shan
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Plant Biology
subject: Virology

description: A pair of new lignans [(+)- 1 and (-)- 1] and three new compounds (2-4), together with a known compound 5, were isolated from the fruits of Xanthium italicum Moretti. The structures of these compounds were determined on the basis of spectroscopic analysis, particularly HR-ESI-MS and 1 D and 2 D NMR. Compounds 2 and 3 showed antinociceptive effects in an acetic acid-induced writhing test in mice with the writhe inhibition rates of 80.50% and 67.89% at the dose of 20 mg/kg, respectively.
Physics at large p_T^2 and Q^2: Summary
Creators: name: Moortgat-Pick, G.
name: Rolli, S.
name: Zarnecki, A. F.
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We summarize the results presented in the `Physics at large p_T^2 and Q^2' working group at the DIS'2002 Workshop. Higgs searches, precision measurements as well as searches for physics beyond the Standard Model at current and future experiments are reviewed.
description: 27 pages,35 figures;to appear in the Proceedings of the X. International Workshop on Deep Inelastic Scattering (DIS2002) Cracow, Poland, 30 April--4 May, 2002
The Role of Bacillithiol in Gram-Positive Firmicutes
Creators: name: Chandrangsu, Pete
name: Loi, Vu Van
name: Antelmann, Haike
name: Helmann, John D.
Publisher: name: Freie Universität Berlin
Year: 2018
Subjects: subject: Bacillus subtilis
subject: Staphylococcus aureus
subject: bacillithiol
subject: BSH biosynthesis
subject: metal homeostasis
subject: methylglyoxal
subject: S-bacillithiolation
subject: bacilliredoxin
subject: 500 Naturwissenschaften und Mathematik::570 Biowissenschaften; Biologie::579 Mikroorganismen, Pilze, Algen

description: Significance: Since the discovery and structural characterization of bacillithiol (BSH), the biochemical functions of BSH-biosynthesis enzymes (BshA/B/C) and BSH-dependent detoxification enzymes (FosB, Bst, GlxA/B) have been explored in Bacillus and Staphylococcus species. It was shown that BSH plays an important role in detoxification of reactive oxygen and electrophilic species, alkylating agents, toxins, and antibiotics. Recent Advances: More recently, new functions of BSH were discovered in metal homeostasis (Zn buffering, Fe-sulfur cluster, and copper homeostasis) and virulence control in Staphylococcus aureus. Unexpectedly, strains of the S. aureus NCTC8325 lineage were identified as natural BSH-deficient mutants. Modern mass spectrometry-based approaches have revealed the global reach of protein S-bacillithiolation in Firmicutes as an important regulatory redox modification under hypochlorite stress. S-bacillithiolation of OhrR, MetE, and glyceraldehyde-3-phosphate dehydrogenase (Gap) functions, analogous to S-glutathionylation, as both a redox-regulatory device and in thiol protection under oxidative stress. Critical Issues: Although the functions of the bacilliredoxin (Brx) pathways in the reversal of S-bacillithiolations have been recently addressed, significantly more work is needed to establish the complete Brx reduction pathway, including the major enzyme(s), for reduction of oxidized BSH (BSSB) and the targets of Brx action in vivo. Future Directions: Despite the large number of identified S-bacillithiolated proteins, the physiological relevance of this redox modification was shown for only selected targets and should be a subject of future studies. In addition, many more BSH-dependent detoxification enzymes are evident from previous studies, although their roles and biochemical mechanisms require further study. This review of BSH research also pin-points these missing gaps for future research. Antioxid. Redox Signal. 28, 445–462.
Simple technique for superconducting joints quality estimation in bulk melt-processed high temperature superconductors
Creators: name: Kordyuk, A. A.
name: Nemoshkalenko, V. V.
name: Plyushchay, A. I.
name: Prikhna, T. A.
name: Gawalek, W.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We propose an empirical approach to estimate the quality of superconducting joints (welds) between blocks of bulk high temperature superconductors (HTS). As a measuring value, we introduce a joint's quality factor and show its natural correlation with joint's critical current density. Being simple and non-destructive, this approach is considered to be quite important to solve the problem of utilization of HTS in large scale applications. The approach has been applied to characterize the joint's quality of melt-processed Y-123 joined by Tm-123 solder.
description: 3 pages with 2 figures (revtex)
Liris crepitans LECLERCQ 1967
Creators: name: Madl, M.
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Crabronidae
Liris
Liris crepitans

description: Liris crepitans LECLERCQ, 1967
 Liris crepitans n.sp.: LECLERCQ 1967: 65 (descr., fig. b, Madagascar).
 Liris crepitans LECLERCQ, 1967: BOHART & MENKE 1976: 245 (cat.).
 Liris crepitans LECLERCQ, 1967: PULAWSKI 2003: 796 (cat. Madagascar).
D i s t r i b u t i o n: Madagascar: Prov. Mahajanga: Maevatanana.
Endemic.
description: Published as part of Madl, M., 2014, Annotated catalogue of the Ampulicidae, Crabronidae and Sphecidae (Hymenoptera) of the Malagasy subregion, pp. 933-1039 in Linzer biologische Beiträge 46 (2) on page 968, DOI: 10.5281/zenodo.5312608
Madanga ruficollis Rothschild and Hartert
Creators: name: Mary
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Aves
Passeriformes
Zosteropidae
Madanga
Madanga ruficollis

description: Madanga ruficollis Rothschild and Hartert
 Madanga ruficollis Rothschild and Hartert, 1923: 118 (Wa Fehat, Buru).
 Now Madanga ruficollis Rothschild and Hartert, 1923. See Mees, 1969: 169–171, White and Bruce, 1986: 417, and van Balen, 2008: 481.
 HOLOTYPE: AMNH 701487, unsexed [male], collected at Wa Fehat, 2700 ft, Buru Island, Moluccas, Indonesia, on 14 April 1922, by the Pratt brothers. From the Rothschild Collection.
 COMMENTS: In the original description, the type was said to have been collected on 14 April 1922 at Wa Fehat; the above specimen is the only one of the four specimens comprising the type series that was collected on that date. The three paratypes, all collected in 1922 by the Pratts, are: AMNH 701488, unsexed, collected at Wa Fehat on 8 April; AMNH 701489, unsexed, collected at Wa Fehat on 11 April; AMNH 701490, female, collected on ‘‘Mada Range’’ on 9 April. The genus Madanga was described at the same time.
Hartert (1924a: 111), in his later paper on some of the unusual birds from the Pratts’ collection on Buru, again said that four specimens were collected and noted that the ‘‘Mada Range’’ specimen was collected only one day after one of the Wa Fehat specimens. On AMNH 701490, someone has written ‘‘Mada Range’’ in ink over a pencilled name that is now indecipherable. All of the Pratts’ collection was made in west central Buru, according to Joicey and Talbot (1924). Rothschild and Hartert (1923: 118) equate mountain ranges ‘‘ Madang,’’ ‘‘Mada,’’ and ‘‘Fogha’’ with Mount Tomahu, 03.14S, 126.04E (USBGN, 1982a); whereas, Stresemann (1914b: 361) equated these mountains with Kapala Mada, which is probably the same as Kapalatmada, 03.15S, 126.09E (USBGN, 1982a). The latter seems more likely to me. Rothschild purchased only 32 of the approximately 200 bird specimens that the Pratts collected, the remainder going to BMNH (Hartert, 1924a: 104).
description: Published as part of Mary, 2011, Type Specimens Of Birds In The American Museum Of Natural History Part 9. Passeriformes: Zosteropidae And Meliphagidae, pp. 1-193 in Bulletin of the American Museum of Natural History 2011 (348) on page 34
A conserved structural element in the RNA helicase UPF1 regulates its catalytic activity in an isoform-specific manner
Creators: name: Gowravaram, Manjeera
name: Bonneau, Fabien
name: Kanaan, Joanne
name: Maciej, Vincent D.
name: Fiorini, Francesca
name: Raj, Saurabh
name: Croquette, Vincent
name: Hire, Hervé Le
name: Chakrabarti, Sutapa
Publisher: name: Freie Universität Berlin
Year: 2018
Subjects: subject: RNA helicase UPF1
subject: 500 Naturwissenschaften und Mathematik::540 Chemie::540 Chemie und zugeordnete Wissenschaften

description: The RNA helicase UPF1 is a key component of the nonsense mediated mRNA decay (NMD) pathway. Previous X-ray crystal structures of UPF1 elucidated the molecular mechanisms of its catalytic activity and regulation. In this study, we examine features of the UPF1 core and identify a structural element that adopts different conformations in the various nucleotide- and RNA-bound states of UPF1. We demonstrate, using biochemical and single molecule assays, that this structural element modulates UPF1 catalytic activity and thereby refer to it as the regulatory loop. Interestingly, there are two alternatively spliced isoforms of UPF1 in mammals which differ only in the lengths of their regulatory loops. The loop in isoform 1 (UPF11) is 11 residues longer than that of isoform 2. We find that this small insertion in UPF11 leads to a two-fold increase in its translocation and ATPase activities. To determine the mechanistic basis of this differential catalytic activity, we have determined the X-ray crystal structure of the helicase core of UPF11 in its apo-state. Our results point toward a novel mechanism of regulation of RNA helicases, wherein alternative splicing leads to subtle structural rearrangements within the protein that are critical to modulate enzyme movements and catalytic activity.
A luminous stellar outburst during a long-lasting eruptive phase first, and then SN IIn 2018cnf
Creators: name: Pastorello, A.
name: Reguitti, A.
name: Morales-Garoffolo, A.
name: Cano, Z.
name: Prentice, S. J.
name: Hiramatsu, D.
name: Burke, J.
name: Kankare, E.
name: Kotak, R.
name: Reynolds, T.
name: Smartt, S. J.
name: Bose, S.
name: Chen, Ping
name: Congiu, E.
name: Dong, Subo
name: Geier, S.
name: Gromadzki, M.
name: Hsiao, E. Y.
name: Kumar, S.
name: Ochner, P.
name: Pignata, G.
name: Tomasella, L.
name: Wang, L.
name: Arcavi, I.
name: Ashall, C.
name: Callis, E.
name: Postigo, A. de Ugarte
name: Fraser, M.
name: Hosseinzadeh, G.
name: Howell, D. A.
name: Inserra, C.
name: Kann, D. A.
name: Mason, E.
name: Mazzali, P. A.
name: McCully, C.
name: Rodriguez, O.
name: Phillips, M. M.
name: Smith, K. W.
name: Tartaglia, L.
name: Thoene, C. C.
name: Wevers, T.
name: Young, D. R.
name: Pumo, M. L.
name: Lowe, T. B.
name: Magnier, E. A.
name: Wainscoat, R. J.
name: Waters, C.
name: Wright, D. E.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present the results of the monitoring campaign of the Type IIn supernova (SN) 2018cnf (aka ASASSN-18mr). It was discovered about 10 days before the maximum light (on MJD = 58293.4+-5.7 in the V band, with MV = -18.13+-0.15 mag). The multiband light curves show an immediate post-peak decline with some minor luminosity fluctuations, followed by a flattening starting about 40 days after maximum. The early spectra are relatively blue and show narrow Balmer lines with P Cygni profiles. Additionally, Fe II, O I, He I and Ca II are detected. The spectra show little evolution with time, with intermediate-width features becoming progressively more prominent, indicating stronger interaction of the SN ejecta with the circumstellar medium. The inspection of archival images from the Panoramic Survey Telescope and Rapid Response System (Pan-STARRS) survey has revealed a variable source at the SN position, with a brightest detection in December 2015 at Mr = -14.66+-0.17 mag. This was likely an eruptive phase from the massive progenitor star started from at least mid-2011, and that produced the circumstellar environment within which the star exploded as a Type IIn SN. The overall properties of SN 2018cnf closely resemble those of transients such as SN 2009ip. This similarity favours a massive hypergiant, perhaps a luminous blue variable, as progenitor for SN 2018cnf.
description: 19 pages, 8 figures, 3 tables. Published in A&A
Contact of Viscoelastic Spheres
Creators: name: Schwager, Thomas
name: Poeschel, Thorsten
Publisher: name: arXiv
Year: 2002
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: In a recent paper an implicit equation for contacting viscoelastic spheres was derived (Brilliantov et al. PRE 53, 5382 (1996)). Integrating this equation it can be shown that the coefficient of normal restitution depends on the impact velocity as 1-ε\sim g^{1/5}.
description: 7 pages, 3 figures
Stability of the Kauffman Model
Creators: name: Bilke, S.
name: Sjunnesson, F.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: Random Boolean networks, the Kauffman model, are revisited by means of a novel decimation algorithm, which reduces the networks to their dynamical cores. The average size of the removed part, the stable core, grows approximately linearly with N, the number of nodes in the original networks. We show that this can be understood as the percolation of the stability signal in the network. The stability of the dynamical core is investigated and it is shown that this core lacks the well known stability observed in full Kauffman networks. We conclude that, somewhat counter-intuitive, the remarkable stability of Kauffman networks is generated by the dynamics of the stable core. The decimation method is also used to simulate large critical Kauffman networks. For networks up to N=32 we perform full enumeration studies. Strong evidence is provided for that the number of limit cycles grows linearly with N. This result is in sharp contrast to the often cited $\sqrt{N}$ behavior.
description: 12 pages, 4 figures
Application of polyethylene glycol-coated iron oxide nanoparticles for magnetic solid phase extraction of copper from seawater samples and its determination by graphite furnace atomic absorption spectrometry using response surface methodology for optimization of extraction
Creators: name: Khayyat-Sarkar, Zahra
name: Hashemi, Sayyed Hossein
name: Keikha, Ahmad Jamali
name: Kaykhaii, Massoud
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Space Science
subject: Medicine
subject: Biotechnology
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: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified

description: In this research, a novel solid phase extraction method combined with graphite furnace atomic absorption spectrometry has been employed for the extraction and trace determination of copper in tap and seawater samples. The technique was based on poly ethylene glycol-coated iron oxide nanoparticle as adsorbent for solid phase extraction of copper ions. Optimal conditions including pH, extraction and desorption time, concentration and volume of eluent, temperature, volume of sample, amount of PEG and sorbent were investigated and optimized using both the one-variable-at-a-time method and response surface methodology. Under the optimal experimental conditions, the calibration graph was linear in range of 0.5–125.0 µg/L with detection limit of 6 ng/L. Good enrichment factor of 121 folds for the analyte was obtained. The repeatability of the method was satisfactory (RSD ≤ 4.8%). Finally a few seawater samples of Chabahar Bay (Southeast Iran) were analyzed successfully with proposed procedure.
Instanton IR stabilization in the nonperturbative confining vacuum
Creators: name: Agasian, N. O.
name: Fedorov, S. M.
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The influence of nonperturbative fields on instantons in quantum chromodynamics is studied. Nonperturbative vacuum is described in terms of nonlocal gauge invariant vacuum averages of gluon field strength. Effective action for instanton is derived in bilocal approximation and it is demonstrated that stochastic background gluon fields are responsible for infra-red (IR) stabilization of instantons. Dependence of characteristic instanton size on gluon condensate and correlation length in nonperturbative vacuum is found. It is shown that instanton size in QCD is of order of 0.25 fm. Comparison of obtained instanton size distribution with lattice data is made.
description: 10 pages, 4 figures; v2: minor corrections, to appear in JHEP
Additional file 1: of Noninvasive molecular diagnosis of craniopharyngioma with MRI-based radiomics approach
Creators: name: Chen, Xi
name: Tong, Yusheng
name: Shi, Zhifeng
name: Chen, Hong
name: Yang, Zhong
name: Wang, Yuanyuan
name: Chen, Liang
name: Yu, Jinhua
Publisher: name: figshare
Year: 2019
Subjects: subject: Space Science
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Chemical Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Cancer
subject: Virology

description: Table S1. Summary of 1021 radiomics features; the calculations of selected features in pathological subtypes and genetic mutational status prediction model. (PDF 259 kb)
Dynamical generation of parameter laminations
Creators: name: Blokh, A.
name: Oversteegen, L.
name: Timorin, V.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 37F20 (Primary), 37F10, 37F50 (Secondary)

description: Local similarity between the Mandelbrot set and quadratic Julia sets manifests itself in a variety of ways. We discuss a combinatorial one, in the language of geodesic laminations. More precisely, we compare quadratic invariant laminations representing Julia sets with the so-called Quadratic Minor Lamination (QML) representing a locally connected model of the Mandelbrot set. Similarly to the construction of an invariant lamination by pullbacks of certain leaves, we describe how QML can be generated by properly understood pullbacks of certain minors. In particular, we show that the minors of all non-renormalizable quadratic laminations can be obtained by taking limits of "pullbacks" of minors from the main cardioid. This is the second, amended version of the paper, to appear in Contemporary Mathematics
description: 23 pages, 1 figure
ДИСПАНСЕРЛАШ ЁРДАМИДА СИГИРЛАРДА КАТТА ҚОРИН АЦИДОЗИНИНГ ТАРҚАЛИШИНИ АНИҚЛАШ НАТИЖАЛАРИ
Creators: name: Хайитов Б.Н. – в.ф.ф.д., (PhD) Мелиқўзийев Н. - талаба. Тўхтаев С. - талаба. Самарқанд давлат ветеринария медицинаси, чорвачилик ва биотехнологиялар университети
Publisher: name: Zenodo
Year: 2025

description: Республикамизнинг Самарқанд, Навоий ва Қашқадарёвилоятларидаги фермер хўжаликлари шароитида юқори маҳсулдор сигирлардакаттақорин ацидозининг йил фасиллари бўйича тарқалиши келтирилган.
Additional file 4: of Noninvasive molecular diagnosis of craniopharyngioma with MRI-based radiomics approach
Creators: name: Chen, Xi
name: Tong, Yusheng
name: Shi, Zhifeng
name: Chen, Hong
name: Yang, Zhong
name: Wang, Yuanyuan
name: Chen, Liang
name: Yu, Jinhua
Publisher: name: figshare
Year: 2019
Subjects: subject: Space Science
subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Cancer

description: Table S2. High-throughput texture features which have an ICC greater than 0.8. (PDF 334 kb)
Liris cubitalis
Creators: name: Madl, M.
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Crabronidae
Liris
Liris cubitalis

description: Liris cubitalis (DE SAUSSURE, 1887)
 Notogonia cubitalis n.sp.: DE SAUSSURE 1887: 17 (descr., Mauritius).
 Notogonia cubitalis DE SAUSSURE, 1887: DE SAUSSURE 1890: pl. 12 (figs 14, 14a).
 Notogonia cubitalis DE SAUSSURE, 1887: DE SAUSSURE 1892: 501 (key, tax.), 502 (tax.), 513 (tax., descr., Mauritius).
 Larra (Notogonia) cubitalis (DE SAUSSURE, 1892): KOHL 1897 (In: DE DALLA TORRE): 666 (tax., cat.).
 Liris cubitalis (DE SAUSSURE, 1890): WILLIAMS 1958: 123 (cat. Mauritius).
 Motes cubitalis (DE SAUSSURE, 1887): LECLERCQ 1961c: 116 (tax., Mauritius).
 Liris cubitalis (DE SAUSSURE, 1892): BOHART & MENKE 1976: 245 (tax., cat.).
D i s t r i b u t i o n: Mauritius: Mauritius.
 Endemic. Liris cubitalis is only known from the holotype and a damaged specimen housed in the MNHNP (LECLERCQ 1961c: 116).
description: Published as part of Madl, M., 2014, Annotated catalogue of the Ampulicidae, Crabronidae and Sphecidae (Hymenoptera) of the Malagasy subregion, pp. 933-1039 in Linzer biologische Beiträge 46 (2) on pages 968-969, DOI: 10.5281/zenodo.5312608
Zosterops crassirostris Hartert
Creators: name: Mary
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Aves
Passeriformes
Zosteropidae
Zosterops
Zosterops crassirostris

description: Zosterops crassirostris Hartert
 Zosterops crassirostris Hartert, 1897b: 172 (South Flores).
 Now Heleia crassirostris (Hartert, 1897). See Mees, 1969: 209–211, White and Bruce, 1986: 419, and van Balen, 2008: 483.
 LECTOTYPE: AMNH 701445, adult male, collected in southern Flores, 3500 ft, on 28 October 1896, by collectors for Alfred Everett. From the Rothschild Collection.
 COMMENTS: Hartert did not designate a type in the original description or say how many specimens he examined; nor did he (Hartert, 1897d: 519–520) later add information, except to say that Everett sent a ‘‘fine series.’’ Seven specimens came to AMNH; Hartert (1920: 437) designated as lectotype the single specimen with the date 28 October and altitude 3500 feet. The paralectotypes in AMNH, all collected in southern Flores in October 1896 (with no day or altitude given), are: males, AMNH 701441–701444; females, AMNH 701446, 701447. The species is illustrated in Hartert (1897d: pl. III, fig. 2).
description: Published as part of Mary, 2011, Type Specimens Of Birds In The American Museum Of Natural History Part 9. Passeriformes: Zosteropidae And Meliphagidae, pp. 1-193 in Bulletin of the American Museum of Natural History 2011 (348) on page 39
Relativistic Heavy Ion Physics: Results from AGS to RHIC
Creators: name: Steinberg, Peter
Publisher: name: arXiv
Year: 2002
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: High-energy collisions of heavy ions provide a means to study QCD in a regime of high parton density, and may provide insight into its phase structure. Results from the four experiments at RHIC (BRAHMS, PHENIX, PHOBOS and STAR) are presented, and placed in context with the lower energy data from the AGS and SPS accelerators. The focus is on the insights these measurements provide into the time history of the collision process. Taken together, the data point to the creation of a deconfined state of matter that forms quickly, expands rapidly and freezes out suddenly.
description: 16 Pages, 17 Figures, Presented at Physics In Collision XXII, Stanford, CA, June 20-22, 2002
Phase-Field Formulation for Quantitative Modeling of Alloy Solidification
Creators: name: Karma, Alain
Publisher: name: arXiv
Year: 2001
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: A phase-field formulation is introduced to simulate quantitatively microstructural pattern formation in alloys. The thin-interface limit of this formulation yields a much less stringent restriction on the choice of interface thickness than previous formulations and permits to eliminate non-equilibrium effects at the interface. Dendrite growth simulations with vanishing solid diffusivity show that both the interface evolution and the solute profile in the solid are well resolved.
Note on the symplectic structure of asymptotically flat gravity and BMS symmetries
Creators: name: Alessio, Francesco
name: Arzano, Michele
Publisher: name: arXiv
Year: 2019
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The Poisson brackets of the gravitational field at null infinity play a pivotal role in establishing the equivalence between the Ward identities involving BMS charges and the soft graviton theorem. In recent literature it was noticed that, in order to reproduce the action of BMS transformations via such Poisson brackets, one needs to add "ad-hoc" boundary terms in the symplectic form. In this note we show that, introducing a suitable splitting of the gravitational field in bulk and boundary degrees of freedom and using techniques of covariant phase space formalism, it is possible to obtain the correct Poisson brackets between the boundary fields without any additional assumption. The same Poisson brackets are used to show that BMS charges canonically generate BMS transformations on the gravitational phase space.
Precursors of catastrophe in the BTW, Manna and random fiber bundle models of failure
Creators: name: Pradhan, Srutarshi
name: Chakrabarti, Bikas K.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We have studied precursors of the global failure in some self-organised critical models of sand-pile (in BTW and Manna models) and in the random fiber bundle model (RFB). In both BTW and Manna model, as one adds a small but fixed number of sand grains (heights) to any central site of the stable pile, the local dynamics starts and continues for an average relaxation time (τ) and an average number of topplings (Δ) spread over a radial distance (ξ). We find that these quantities all depend on the average height (h_{av}) of the pile and they all diverge as (h_{av}) approaches the critical height (h_{c}) from below: (Δ) (\sim (h_{c}-h_{av}))(^{-δ}), (τ\sim (h_{c}-h_{av})^{-γ}) and (ξ) (\sim) ((h_{c}-h_{av})^{-ν}). Numerically we find (δ\simeq 2.0), (γ\simeq 1.2) and (ν\simeq 1.0) for both BTW and Manna model in two dimensions. In the strained RFB model we find that the breakdown susceptibility (χ) (giving the differential increment of the number of broken fibers due to increase in external load) and the relaxation time (τ), both diverge as the applied load or stress (σ) approaches the network failure threshold (σ_{c}) from below: (χ) (\sim) ((σ_{c}) (-)(σ)^{-1/2}) and (τ) (\sim) ((σ_{c}) (-)(σ)^{-1/2}). These self-organised dynamical models of failure therefore show some definite precursors with robust power laws long before the failure point. Such well-characterised precursors should help predicting the global failure point of the systems in advance.
description: 13 pages, 9 figures (eps)
Solid state effects on exciton states and optical properties of PPV
Creators: name: Ruini, Alice
name: Caldas, Marilia J.
name: Bussi, Giovanni
name: Molinari, Elisa
Publisher: name: arXiv
Year: 2002
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We perform ab initio calculations of optical properties for a typical semiconductor conjugated polymer, poly-para-phenylenevinylene, in both isolated chain and crystalline packing. In order to obtain results for excitonic energies and real-space wavefunctions we explicitly include electron-hole interaction within the density-matrix formalism. We find that the details of crystalline arrangement crucially affect the optical properties, leading to a richer exciton structure and opening non-radiative decay channels. This has implications for the optical activity and optoelectronic applications of polymer films.
description: 4 pages, 3 Figures, to be published in Phys. Rev. Lett
Two-loop effective potential for a general renormalizable theory and softly broken supersymmetry
Creators: name: Martin, Stephen P.
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: I compute the two-loop effective potential in the Landau gauge for a general renormalizable field theory in four dimensions. Results are presented for the \bar{MS} renormalization scheme based on dimensional regularization, and for the \bar{DR} and \bar{DR}' schemes based on regularization by dimensional reduction. The last of these is appropriate for models with softly broken supersymmetry, such as the Minimal Supersymmetric Standard Model. I find the parameter redefinition which relates the \bar{DR} and \bar{DR}' schemes at two-loop order. I also discuss the renormalization group invariance of the two-loop effective potential, and compute the anomalous dimensions for scalars and the beta function for the vacuum energy at two-loop order in softly broken supersymmetry. Several illustrative examples and consistency checks are included.
description: 38 pages. Typos in equations (3.5), (3.11), and (6.3) are fixed. Explicit claim of renormalization group invariance in the general case of softly-broken supersymmetry is added. Additional discussion of cases of multiple simple or U(1) groups. Equations in Appendix B rewritten in a more useful form
The significance of the fragmentation region in ultrarelativistic heavy ion collisions
Creators: name: Back, B. B.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We present measurements of the pseudorapidity distribution of primary charged particles produced in Au+Au collisions at three energies, sqrt(s_{NN}) = 19.6, 130, and 200 GeV, for a range of collision centralities. The centrality dependence is shown to be non-trivial: the distribution narrows for more central collisions and excess particles are produced at high pseudorapidity in peripheral collisions. For a given centrality, however, the distributions are found to scale with energy according to the "limiting fragmentation" hypothesis. The universal fragmentation region described by this scaling grows in pseudorapidity with increasing collision energy, extending well away from the beam rapidity and covering more than half of the pseudorapidity range over which particles are produced. This approach to a universal limiting curve appears to be a dominant feature of the pseudorapidity distribution and therefore of the total particle production in these collisions.
description: 5 pages, 4 figures
Zosterops smithi Neumann
Creators: name: Mary
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Aves
Passeriformes
Zosteropidae
Zosterops
Zosterops smithi

description: Zosterops smithi Neumann
 Zosterops smithi Neumann, 1902b: 139 (Sillul, Bodele, Somali Land).
 Now Zosterops abyssinicus jubaensis Erlanger, 1901. See Moreau, 1967: 327, Fry et al., 2000: 324–315, and van Balen, 2008: 469–470.
 LECTOTYPE: AMNH 699310, adult male, collected at Wadi Sillul (5 Selou, as on label), Bodele, Ethiopia, on 7 August 1894, by A. Donaldson Smith (no. 140). From the Rothschild Collection.
 COMMENTS: In the original description, Neumann designated as syntypes a male and a female in the Rothschild Collection, collected at [Wadi] Sillul by Donaldson Smith. Hartert (1920: 432) listed the male as the type, thereby designating it the lectotype. The paralectotype is AMNH 699311, female, collected at Wadi Sillul on 7 August 1894 by Donaldson Smith (no. 141). Neumann (1902b: 139) listed two additional specimens in BMNH, but because he designated syntypes in the original description, those specimens have no nomenclatural standing (ICZN, 1999: 77, Art. 72.4.6).
 Sharpe (1895) reported on this, the first Donaldson Smith expedition to the area, and later noted (Sharpe, 1906: 277) that the 23 types of new forms that he had named had been presented to BMNH by Donaldson Smith. Apparently, those were the only specimens from this first expedition that went to BMNH. Sharpe (1895: 475–476), in his report on the collection, listed as Zosterops flavilateralis a male specimen bearing the same data as the lectotype of Z. smithi and in addition recorded the iris as ‘‘light brown’’ and feet as ‘‘dark grey,’’ both noted on the original label of the lectotype. I believe it was indeed this specimen but that it did not remain in BMNH; the female was not listed.
The date of collection of the lectotype appears to be 1 August; however, careful examination with a magnifying glass shows that part of the ‘‘7’’ was overwritten by Neumann with his new name, and the lectotype was collected on the same date as the paralectotype. A search of Sharpe (1895) for collecting dates provided 5–7 August for Wadi Sillul and 7–9 August for Selou (probably an alternative spelling). This agrees with map sheet 1 in Donaldson Smith (1896) where the Wadi Sillul crosses the expedition route at ca. 08.10N, 43.17E.
description: Published as part of Mary, 2011, Type Specimens Of Birds In The American Museum Of Natural History Part 9. Passeriformes: Zosteropidae And Meliphagidae, pp. 1-193 in Bulletin of the American Museum of Natural History 2011 (348) on page 41
title: Spin-labeling of Dexamethasone
title: Radical Stability vs. Temporal Resolution of EPR-Spectroscopy on Biological Samples
titleType: Subtitle
Creators: name: Walker, Karolina A.
name: Unbehauen, Michael L.
name: Lohan, Silke B.
name: Saeidpour, Siavash
name: Meinke, Martina C.
name: Zimmer, Reinhold
name: Haag, Rainer
Publisher: name: Freie Universität Berlin
Year: 2018
Subjects: subject: electron spin relaxation
subject: ex vivo imaging
subject: labeling
subject: X-band EPR
subject: 500 Natural sciences and mathematics::530 Physics::530 Physics

description: Spin-labeling active compounds is a convenient way to prepare them for EPR spectroscopy with minimal alteration of the target molecule. In this study we present the labeling reaction of dexamethasone (Dx) with either TEMPO (2,2,6,6-tetramethyl-1-piperidinyloxy) or PCA (3-(carboxy)-2,2,5,5-tetramethyl-1-pyrrolidinyloxy) with high yields. According to NMR data, both labels are attached at the primary hydroxy group of the steroid. In subsequent spin-stability measurements both compounds were applied onto HaCaT cells. When the signal of Dx-TEMPO decreased below the detection limit within 3 h, the signal of Dx-PCA remained stable for the same period of time.
Liris dejecta ARNOLD 1945
Creators: name: Madl, M.
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Crabronidae
Liris
Liris dejecta

description: Liris dejecta ARNOLD, 1945
 Liris (Motes) dejecta n.sp.: ARNOLD 1945: 119 (key), 120 (key), 129 (descr., figs 99, 99a, Madagascar).
 Motes dejecta ARNOLD, 1944: LECLERCQ 1960: 97 (tax., Madagascar).
 Motes dejecta ARNOLD, 1944): LECLERCQ 1961c: 113 (tax.), 115 (Madagascar).
 Liris dejecta ARNOLD, 1945: BOHART & MENKE 1976: 245 (tax., cat.).
 Liris dejectus (!) ARNOLD, 1945: PULAWSKI 2003: 796 (cat. Madagascar).
D i s t r i b u t i o n: Madagascar: Prov. Antsiranana: Ambohitra – Prov. Antananarivo: Ambohimanga, Ambohitantely – Prov. Toamasina: Analandraraka (near Andekaleka (Rogez), Andekaleka (Rogez), Fampanambo, Moramanga – Prov. Toliara: Bekily.
Endemic.
description: Published as part of Madl, M., 2014, Annotated catalogue of the Ampulicidae, Crabronidae and Sphecidae (Hymenoptera) of the Malagasy subregion, pp. 933-1039 in Linzer biologische Beiträge 46 (2) on page 969, DOI: 10.5281/zenodo.5312608
Low-temperature kinetics of exciton-exciton annihilation of weakly localized one-dimensional Frenkel excitons
Creators: name: Ryzhov, I. V.
name: Kozlov, G. G.
name: Malyshev, V. A.
name: Knoester, J.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We present results of numerical simulations of the kinetics of exciton-exciton annihilation of weakly localized one-dimensional Frenkel excitons at low temperatures. We find that the kinetics is represented by two well-distinguished components: a fast short-time decay and a very slow long-time tail. The former arises from excitons that initially reside in states belonging to the same localization segment of the chain, while the slow component is caused by excitons created on different localization segments. We show that the usual bi-molecular theory fails in the description of the behavior found. We also present a qualitative analytical explanation of the non-exponential behavior observed in both the short- and the long-time decay components.
description: Published in J. Chem. Phys. 114, 1 April (2001)