cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Ionic conductivity along transmembrane-electropores in human aquaporin 4: calcium effects from non-equilibrium molecular dynamics
Creators: name: Bernardi, Mario
name: Ghaani, Mohammad Reza
name: English, Niall J.
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biophysics
subject: Biochemistry
subject: Cell Biology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Electroporation is subject to extensive research efforts and is a rather under-studied in trans-membrane proteins, particularly considering promising possible applications in biotechnology and medicine. In particular, some such innovative potential applications are centred on controlling the permeability of ions through electro-pores. Here, we study ions’ conductivity along metastable electro-pores across h-AQP4 as a typical case study of conduction of ions across membranes; of note, we are achieving a good degree of control over this permeation in the presence of calcium ions on either side of the membrane. In this work we will unveil the effect of polyvalent calcium cations, compared to that of sodium cations, onto the biological system. We also assess ions’ in-electropore residence-time and mean-first-passage-time distributions and determine ionic-conductivity estimates similar to water in other nano-confined milieux.
Oxygen Line Formation in Late-F through Early-K Disk/Halo Stars: Infrared O I Triplet and [O I] Lines
Creators: name: Takeda, Yoichi
Publisher: name: arXiv
Year: 2001
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In order to investigate the formation of O {\sc i} 7771--5 and [O {\sc i}] 6300/6363 lines, extensive non-LTE calculations for neutral atomic oxygen were carried out for wide ranges of model atmosphere parameters, which are applicable to early-K through late-F halo/disk stars of various evolutionary stages. The formation of the triplet O {\sc i} lines was found to be well described by the classical two-level-atom scattering model, and the non-LTE correction is practically determined by the parameters of the line-transition itself without any significant relevance to the details of the oxygen atomic model. This simplifies the problem in the sense that the non-LTE abundance correction is essentially determined only by the line-strength ($W_λ$), if the atmospheric parameters of $T_{\rm eff}$, $\log g$, and $ξ$ are given, without any explicit dependence of the metallicity; thus allowing a useful analytical formula with tabulated numerical coefficients. On the other hand, our calculations lead to the robust conclusion that LTE is totally valid for the forbidden [O {\sc i}] lines. An extensive reanalysis of published equivalent-width data of O {\sc i} 7771--5 and [O {\sc i}] 6300/6363 taken from various literature resulted in the conclusion that, while a reasonable consistency of O {\sc i} and [O {\sc i}] abundances was observed for disk stars ($-1 \la [{\rm Fe}/{\rm H}] \la 0$), the existence of a systematic abundance discrepancy was confirmed between O {\sc i} and [O {\sc i}] lines in conspicuously metal-poor halo stars ($-3 \la [{\rm Fe}/{\rm H}] \la -1$) without being removed by our non-LTE corrections, i.e., the former being larger by $\sim 0.3$ dex at $-3 \la [{\rm Fe}/{\rm H}] \la -2$.
description: 42 pages including 4 tables and 13 figures, published in A&A, 402, 343
Analytical confidence intervals for the number of different objects in data streams
Creators: name: Aletti, Giacomo
Publisher: name: arXiv
Year: 2019
Subjects: subject: Statistics Theory (math.ST)
subject: Data Structures and Algorithms (cs.DS)
subject: Machine Learning (cs.LG)
subject: Computation (stat.CO)
subject: Machine Learning (stat.ML)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: This paper develops a new mathematical-statistical approach to analyze a class of Flajolet-Martin algorithms (FMa), and provides analytical confidence intervals for the number F0 of distinct elements in a stream, based on Chernoff bounds. The class of FMa has reached a significant popularity in bigdata stream learning, and the attention of the literature has mainly been based on algorithmic aspects, basically complexity optimality, while the statistical analysis of these class of algorithms has been often faced heuristically. The analysis provided here shows deep connections with mathematical special functions and with extreme value theory. The latter connection may help in explaining heuristic considerations, while the first opens many numerical issues, faced at the end of the present paper. Finally, the algorithms are tested on an anonymized real data stream and MonteCarlo simulations are provided to support our analytical choice in this context.
description: accepted version
A Novel Adaptive Kernel for the RBF Neural Networks
Creators: name: Khan, Shujaat
name: Naseem, Imran
name: Togneri, Roberto
name: Bennamoun, Mohammed
Publisher: name: arXiv
Year: 2019
Subjects: subject: Machine Learning (stat.ML)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: Optimization and Control (math.OC)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: In this paper, we propose a novel adaptive kernel for the radial basis function (RBF) neural networks. The proposed kernel adaptively fuses the Euclidean and cosine distance measures to exploit the reciprocating properties of the two. The proposed framework dynamically adapts the weights of the participating kernels using the gradient descent method thereby alleviating the need for predetermined weights. The proposed method is shown to outperform the manual fusion of the kernels on three major problems of estimation namely nonlinear system identification, pattern classification and function approximation.
Accurate and rapid big spatial data processing by scripting cartographic algorithms: advanced seafloor mapping of the deep-sea trenches along the margins of the Pacific Ocean
Creators: name: Lemenkova, Polina
Publisher: name: Zenodo
Year: 2021
Subjects: Data Analysis
Machine Learning
Big Data
Deep Learning

description: Accurate and rapid big spatial data processing by scripting cartographic algorithms: advanced seafloor mapping of the deep-sea trenches along the margins of the Pacific Ocean
Data Availability Statement.docx
Creators: name: Cherinet Ambaye
Publisher: name: figshare
Year: 2019
Subjects: subject: 50202 Conservation and Biodiversity
subject: FOS: Biological sciences
subject: 49999 Earth Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 50199 Ecological Applications not elsewhere classified
subject: 50101 Ecological Impacts of Climate Change
subject: Ecology
subject: 50204 Environmental Impact Assessment

description: The manuscript called “Determination of Energy Properties of Fuel Wood from Five Selected Tree Species in Tropical High Lands of Southeast Ethiopia” are fully agreed publicly in the website called figshare.com
Productivity, efficiency and technological change in French agriculture during 2002-2014: A Färe-Primont index decomposition
Creators: name: Dakpo, K Hervé
name: Desjeux, Yann
name: Jeanneaux, Philippe
name: Latruffe, Laure
name: Dakpo, K Hervé
name: Desjeux, Yann
name: Jeanneaux, Philippe
name: Latruffe, Laure
Publisher: name: Unknown
Year: 2016
Subjects: subject: Agricultural and Food Policy
subject: Farm Management
subject: total factor productivity
subject: Färe-Primont index
subject: meta-frontier
subject: French farms

description: The objective of the article is to assess productivity change in French agriculture during 2002-2014, namely total factor productivity (TFP) change and its components technological change and efficiency change. For this, we use the economically-ideal Färe-Primont index which verifies the multiplicatively completeness property and is also transitive, allowing for multi-temporal/lateral comparisons. To compare the technology gap change between the six types of farming considered, we extend the Färe-Primont to the meta-frontier framework. Results indicated that during 2002-2014, all farms had a TFP progress. Pig/poultry farms had the lowest TFP increase while beef farms had the highest (19.1%). The latter had the strongest increase in efficiency change, while technological progress was the highest for mixed farms. The meta-frontier analysis indicates that field crop farms’ technology is the most productive of all types of farming.
Optimal detection of burst events in gravitational wave interferometric observatories
Creators: name: Viceré, Andrea
Publisher: name: arXiv
Year: 2001
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We consider the problem of detecting a burst signal of unknown shape. We introduce a statistic which generalizes the excess power statistic proposed by Flanagan and Hughes and extended by Anderson et al. The statistic we propose is shown to be optimal for arbitrary noise spectral characteristic, under the two hypotheses that the noise is Gaussian, and that the prior for the signal is uniform. The statistic derivation is based on the assumption that a signal affects only affects N samples in the data stream, but that no other information is a priori available, and that the value of the signal at each sample can be arbitrary. We show that the proposed statistic can be implemented combining standard time-series analysis tools which can be efficiently implemented, and the resulting computational cost is still compatible with an on-line analysis of interferometric data. We generalize this version of an excess power statistic to the multiple detector case, also including the effect of correlated noise. We give full details about the implementation of the algorithm, both for the single and the multiple detector case, and we discuss exact and approximate forms, depending on the specific characteristics of the noise and on the assumed length of the burst event. As a example, we show what would be the sensitivity of the network of interferometers to a delta-function burst.
description: 21 pages, 5 figures in 3 groups. Submitted for publication to Phys.Rev.D. A Mathematica notebook is available at http://www.ligo.caltech.edu/~avicere/nda/burst/Burst.nb which allows to reproduce the numerical results of the paper
Brocchinia bicarinata
Creators: name: Harzhauser, Mathias
name: Landau, Bernard
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Liliopsida
Poales
Bromeliaceae
Brocchinia
Brocchinia bicarinata

description: Brocchinia bicarinata (Hoernes & Auinger, 1890)
Figs 3E, 4I 1–I 3
 Cancellaria (g. Narona) bicarinata nov. form.— Hoernes & Auinger 1890: 281, pl. 33, figs 16a–c.
 Brocchinia parvula (Beyr.) var. bicarinata Hö. Au. — Boettger 1906: 51.
 Brocchinia mitraeformis parvula (Beyrich, 1856) — Janssen 1984a: 10, text–fig. 4 [non Cancellaria parvula Beyrich, 1856]. non Brocchinia parvula var. bicarinata Hoernes & Auinger, 1890 — Brunetti et al. 2011: 120, pl. 119, fig. J.
 Type material. NHM Vienna (Austria); see below for details.
 Studied material. 1. spec. Bad Vöslau (Austria) NHMW 1872/0030/0107; 1 spec. Niederleis (Austria) NHMW 1866 /0001/0864; 2 spec. Jaroměřice (Czech Rep.) NHMW 1864 /0001/0353; 1 spec. Drnovice (Czech Rep.) NHMW 1865 /0036/0030.
 Illustrated material. Figs. 3E, 4I 1–I 3: specimen illustrated in Hoernes and Auinger (1890, pl. 33, figs. 16a–c), Bad Vöslau (Austria), height: 10.2 mm, width: 3.7 mm, NHMW 1872/0030/0107; designated as lectotype by Janssen (1984a).
 Discussion. Although Janssen (1984a) was explicitly referring to the Paratethyan specimens of Cancellaria bicarinata Hoernes & Auinger, 1890, when treating this taxon as synonym of Cancellaria parvula Beyrich, 1856, we cannot follow his decision. The differences between the North Sea Basin species and the Paratethyan species are considerable. Brocchinia bicarinata lacks the axial ribs typical for B. parvula, its spiral sculpture is reduced to few sharp cords and the sutural ramp is broad, smooth and flat to slightly concave. These features separate Brocchinia bicarinata clearly from the species group of Brocchinia tauroparva Sacco, 1894 and B. parvula (Beyrich, 1856). The protoconch of B. bicarinata is high multispiral, and has a strongly deviating initial part, followed by a weakly convex whorl. The protoconch of B. parvula, as illustrated by Janssen (1984a) and Landau et al. (2006) is more convex and lacks a deviated initial part.
 The specimen from the Early Miocene of Italy, illustrated by Brunetti et al. (2011) as Brocchinia parvula var. bicarinata differs from the Paratethyan shells in its convex whorls and stout outline. Its last whorl is much higher and its maximum convexity is more or less in its middle and not in the lower third as typical for B. bicarinata.
 Distribution. Brocchinia bicarinata is known so far only from the Paratethys where it seems to be restricted to the early and middle Badenian.
 Paratethys —Badenian: Vienna Basin (Czech Republic: Jaroměřice, Drnovice; Austria: Bad Vöslau, Niederleis); Transylvanian Basin (Romania: CoŞteiu de Sus).
description: Published as part of Harzhauser, Mathias & Landau, Bernard, 2012, A revision of the Neogene Cancellariid Gastropods of the Paratethys Sea 3472, pp. 1-71 in Zootaxa 3472 on page 16
Analyticity of the free energy for quantum Airy structures
Creators: name: Ruba, Błażej
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: It is shown that the free energy associated to a finite dimensional Airy structure is an analytic function at each finite order of the $\hbar$ expansion. Semiclassical series itself is in general divergent. Calculations are facilitated by putting the topological recursion equations into a form exhibiting more explicitly the semiclassical geometry. This formulation involves certain differential operators on the characteristic variety, which are found to satisfy a Lie algebra cocycle condition. It is proven that this cocycle is a coboundary. Developed formalism is applied in specific examples. In the case of a divergent $\hbar$ series, a simple resummation is performed. Analytic properties of the obtained partition functions are investigated.
description: Minor mistakes were corrected
Bivetiella Wenz 1943
Creators: name: Harzhauser, Mathias
name: Landau, Bernard
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Neogastropoda
Cancellariidae
Bivetiella

description: Genus Bivetiella Wenz, 1943
 Type species: by original designation, Cancellaria similis Sowerby, 1833. Recent, north– western Africa.
description: Published as part of Harzhauser, Mathias & Landau, Bernard, 2012, A revision of the Neogene Cancellariid Gastropods of the Paratethys Sea 3472, pp. 1-71 in Zootaxa 3472 on page 18
Additional file 1 of ReRF-Pred: predicting amyloidogenic regions of proteins based on their pseudo amino acid composition and tripeptide composition
Creators: name: Teng, Zhixia
name: Zhang, Zitong
name: Tian, Zhen
name: Li, Yanjuan
name: Wang, Guohua
Publisher: name: figshare
Year: 2021
Subjects: subject: Biochemistry
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified

description: Additional file 1. The three datasets used in this paper: Training dataset, Pep-251, and Reg33.
Dipolar Spin Ice Under Uniaxial Pressure
Creators: name: Edberg, Richard
name: Sandberg, Lise Ørduk
name: Bakke, Ingrid Marie Bergh
name: Haubro, Morten Lunn
name: Mangin-Thro, Lucile
name: Guthrie, Malcolm
name: Holmes, Alexander
name: Sørby, Magnus
name: Lefmann, Kim
name: Deen, Pascale Petronella
name: Henelius, Patrik
Publisher: name: arXiv
Year: 2019
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences
subject: 82

description: The magnetically frustrated spin ice family of materials is host to numerous exotic phenomena such as magnetic monopole excitations and macroscopic residual entropy extending to low temperature. A finite-temperature ordering transition in the absence of applied fields has not been experimentally observed in the classical spin ice materials Dy2Ti2O7 and Ho2Ti2O7. Such a transition could be induced by the application of pressure, and in this work we consider the effects of uniaxial pressure on classical spin ice systems. Theoretically we find that the pressure induced ordering transition in Dy2Ti2O7 is strongly affected by the dipolar interaction. We also report measurements on the neutron structure factor of Ho2Ti2O7 under pressure, and compare the experimental results to the predictions of our theoretical model.
description: 8 pages, 9 figures
Calcarata Jousseaume 1887
Creators: name: Harzhauser, Mathias
name: Landau, Bernard
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Neogastropoda
Cancellariidae
Calcarata

description: Genus Calcarata Jousseaume, 1887b
 Type species: by original designation, Voluta calcarata Brocchi, 1814. Pliocene, Italy.
description: Published as part of Harzhauser, Mathias & Landau, Bernard, 2012, A revision of the Neogene Cancellariid Gastropods of the Paratethys Sea 3472, pp. 1-71 in Zootaxa 3472 on page 19
Estimating the trade effects of the EU food quality policy
Creators: name: Raimondi, Valentina
name: Falco, Chiara
name: Curzi, Daniele
name: Olper, Alessandro
name: Raimondi, Valentina
name: Falco, Chiara
name: Curzi, Daniele
name: Olper, Alessandro
Publisher: name: Unknown
Year: 2016
Subjects: subject: Agricultural and Food Policy
subject: International Relations/Trade
subject: Geographical indicators
subject: EU trade
subject: Extensive-intensive margins
subject: Export prices

description: We investigate the relationship between international trade and product quality using the EU food policy on Geographical Indications (GIs). Building on the quality sorting model proposed by Crozet et al. (2012), we derive three predictions about the relationship between the EU quality policy and different trade margins (extensive and intensive) as well as firms export prices. To test these predictions, we create a new dataset that collects country information on GIs and bilateral trade flows during the period 1996-2014, at HS 6-digit level. We empirically test the theoretical model through Poisson Pseudo Maximum Likelihood (PPML) estimation procedure on panel data. The main results show that GIs affect trade but differently, depending on whether GIs are produced in the exporter or importer country. In particular, the presence of GIs in the exporter country seems to exert a pro-competitive effect, while when registered only in the importer country, GIs act as an anti-competitive measure.
I-MAD: Interpretable Malware Detector Using Galaxy Transformer
Creators: name: Li, Miles Q.
name: Fung, Benjamin C. M.
name: Charland, Philippe
name: Ding, Steven H. H.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Machine Learning (cs.LG)
subject: Cryptography and Security (cs.CR)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Malware currently presents a number of serious threats to computer users. Signature-based malware detection methods are limited in detecting new malware samples that are significantly different from known ones. Therefore, machine learning-based methods have been proposed, but there are two challenges these methods face. The first is to model the full semantics behind the assembly code of malware. The second challenge is to provide interpretable results while keeping excellent detection performance. In this paper, we propose an Interpretable MAlware Detector (I-MAD) that outperforms state-of-the-art static malware detection models regarding accuracy with excellent interpretability. To improve the detection performance, I-MAD incorporates a novel network component called the Galaxy Transformer network that can understand assembly code at the basic block, function, and executable levels. It also incorporates our proposed interpretable feed-forward neural network to provide interpretations for its detection results by quantifying the impact of each feature with respect to the prediction. Experiment results show that our model significantly outperforms existing state-of-the-art static malware detection models and presents meaningful interpretations.
description: Published by Elsevier Computers & Security
Star clusters in the Carina complex: UBVRI photometry of NGC3114, Collinder228 and vdB-Hagen99
Creators: name: Carraro, Giovanni
name: Patat, Ferdinando
Publisher: name: arXiv
Year: 2001
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In this paper we present and analyze CCD $UBVRI$ photometry in the region of the three young open clusters NGC 3114, Collinder~228, and vdB-Hagen~99,
description: 11 pages, 15 figures, accepted for publication in A&A
Calloeneis robyn Gordon and Hanley 2020, new species
Creators: name: Gordon, Robert D.
name: F, Guillermo González
name: Hanley, Guy A.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Coccinellidae
Calloeneis
Calloeneis robyn

description: 14. Calloeneis robyn Gordon and Hanley, new species
 Description. Male holotype. Length 2.0 mm, width 1.6 mm; dorsal surface shiny; head slightly alutaceous. Color black; head yellow; pronotum yellow; elytron black except anterolateral angle yellow, yellow area diagonal from base posteriorly across callus to lateral margin (Fig. 59); venter yellow except median 1/2 of metasternum, apical 1/4 of epipleuron dark brown; abdomen brown except ventrite 5 yellow. Head with punctures large, separated by a diameter or less; pronotal punctures small separated by a diameter or less; elytral punctures slightly larger than on pronotum, separated by up to twice a diameter; prosternal punctures fine, separated by less than a diameter, mesosternal punctures larger than on prosternum, separated by about a diameter; metasternal punctures as large as on mesosternum, separated by a diameter or less; abdominal ventrites 1, 2 with fine punctures separated by up to three times diameter medially, ventrites 2–4 finely, densely punctured medially; ventrite 5 finely, densely punctured. Head with frons narrow, parallel sided, slightly wider than eye, clypeal apex weakly arcuate, nearly truncate (Fig. 60); eye canthus short, about half width of eye. Prosternum with lateral carina on each side curved, extended from apex of intercoxal process to lateral margin of prosternum. Epipleuron not descending externally. Postcoxal line on basal abdominal ventrite curved, extended 3/4 distance to rear margin of ventrite. Genitalia with penis guide 3/4 as long as paramere, slender, tapered from base to abruptly rounded apex; paramere slender, weakly curved, apex rounded (Fig. 61, 62); penis slender, apex briefly attenuate, basal capsule robust, inner arm narrowed to acutely rounded apex, outer arm short, tapered to rounded apex (Fig. 63).
 Female. Unknown.
 Variation. Unknown.
 Type material. Holotype male: Guyana, Georgetown, Botanic gdns., 11.VI.1999, R.G. Booth, BMNH (E) 2001-132 (BMNH).
 Remarks. This species is characterized by a mostly black elytron with contrasting yellow anterolateral macula.
description: Published as part of Gordon, Robert D., F, Guillermo González & Hanley, Guy A., 2020, South American Coccinellidae (Coleoptera), part XX: systematic revision of South American Calloeneis Grote (Cryptognathini), pp. 1-25 in Insecta Mundi 2020 (766) on pages 12-13, DOI: 10.5281/zenodo.5353544
The metal-rich nature of stars with planets
Creators: name: Santos, N. C.
name: Israelian, G.
name: Mayor, M.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: With the goal of confirming the metallicity "excess" present in stars with planetary-mass companions, we present in this paper a high-precision spectroscopic study of a sample of dwarfs included in the CORALIE extrasolar planet survey. The targets were chosen according to the basic criteria that 1) they formed part of a limited volume and 2) they did not present the signature of a planetary host companion. A few stars with planets were also observed and analysed; namely, HD 6434, HD 13445, HD 16141, HD 17051, HD 19994, HD 22049, HD 28185, HD 38529, HD 52265, HD 190228, HD 210277 and HD 217107. For some of these objects there had been no previous spectroscopic studies. The spectroscopic analysis was done using the same technique as in previous work on the metallicity of stars with planets, thereby permitting a direct comparison of the results. The work described in this paper thus represents the first uniform and unbiased comparison between stars with and without planetary-mass companions in a volume-limited sample. The results show that 1) stars with planets are significantly metal-rich, and 2) that the source of the metallicity is most probably "primordial". The results presented here may impose serious constraints on planetary system formation and evolution models.
description: 14 pages, 7 figures, A&A in press
Study of the relationships among known virulence genes, coccoid transformation and cytotoxicity of Helicobacter pylori in different clinical diseases
Creators: name: Xiao, Yao
name: Zhang, Binghua
name: Zhang, Huifang
name: Zhang, Zehui
name: Meng, Fanliang
name: Zhao, Xin
name: Zhang, Jianzhong
name: Xiao, Di
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Biochemistry
subject: Space Science
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Virology

description: Helicobacter pylori (H. pylori) has infected approximately 4.4 billion individuals worldwide. The known virulence genes and the existing H. pylori typing methods have not been shown to have a recognized correlation with its infectivity. The aim of this study was to elucidate the relationships among known important virulence genes, coccoid transformation, and cytotoxicity of H. pylori isolated from individuals with different clinical diseases to provide guidance for the development of new virulence typing methods for H. pylori. The known important virulence genes of 35 H. pylori strains were identified by whole-gene next-generation sequencing (WGS) and polymerase chain reaction (PCR). The chronological changes in the proportion of coccoid forms of H. pylori and their ultramicroscopic structures were observed chronologically using transmission electron microscopy. Human gastric mucosal epithelial cells (GES-1) w There were no significant correlations among the known important virulence genes, coccoid transformation and cytotoxicity of H. pylori isolated from patients with different clinical diseases. We developed a new virulence classification based on the defensive and offensive abilities of H. pylori. Coccoid transformation and virulence are two independent characteristics of H. pylori that reflect its defensive and offensive abilities, respectively. These two abilities work synergistically, warranting the construction of a new virulence typing method for H. pylori. However, the correlation between the new virulence classification and pathogenic ability still needs to be further ver
Fungal Endophytes of Alnus incana ssp. rugosa and Alnus alnobetula ssp. crispa and Their Potential to Tolerate Heavy Metals and to Promote Plant Growth
Creators: name: Lalancette, Steve
name: Lerat, Sylvain
name: Roy, Sébastien
name: Beaulieu, Carole
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biochemistry
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Plant Biology

description: Soil contamination by metals is of particular interest, given that their retention times within the profile can be indefinite. Thus, phytostabilization can be viewed as a means of limiting metal toxicity in soils. Due to their ability to grow on contaminated soils, alders have repeatedly been used as key species in phytostabilization efforts. Alder ability to grow on contaminated sites stems, in part, from its association with microbial endophytes. This work emphasizes the fungal endophytes populations associated with Alnus incana ssp. rugosa and Alnus alnobetula ssp. crispa (previously A. viridis ssp. crispa) under a phytostabilization angle. Fungal endophytes were isolated from alder trees that were growing on or near disturbed environments; their tolerances to Cu, Ni, Zn, and As, and acidic pH (4.3, 3, and 2) were subsequently assessed. Cryptosporiopsis spp. and Rhizoscyphus spp. were identified as fungal endophytes of Alnus for the first time. When used as inoculants for alder, some isolates promoted plant growth, while others apparently presented antagonistic relationships with the host plant. This study reports the first step in finding the right fungal endophytic partners for two species of alder used in phytostabilization of metal-contaminated mining sites.
Quantum Thermal Effect of Dirac Particles in a Non-uniformly Rectilinearly Accelerating Black Hole with Electronic Charge, Magnetic Charge and Cosmological Constant
Creators: name: Wu, S. Q.
name: Cai, X.
Publisher: name: arXiv
Year: 2001
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The Hawking radiation of Dirac particles in an arbitrarily rectilinearly accelerating Kinnersley black hole with electro-magnetic charge and cosmological constant is investigated by using method of the generalized tortoise coordinate transformation. Both the location and the temperature of the event horizon depend on the time and the polar angle. The Hawking thermal radiation spectrum of Dirac particles is also derived. PACS numbers: 04.70.Dy, 97.60.Lf
description: 12pt revtex, 11 pages, no figure, to appear in Int. J. Theor. Phys. 41 (2002) No. 4
Anomaly in the Tunneling I(V) Characteristics of Bi2212
Creators: name: Mourachkine, A.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Tunneling measurements have been carried out on slightly overdoped Bi2212 single crystals below and above the critical temperature by break-junctions and in-plane point-contacts. An anomaly was found in the tunneling I(V) characteristics. Analysis of the data shows that the anomaly is caused by the superconducting condensate. In the extracted I(V) characteristics of the condensate, the constant asymptotics points to the presence of one-dimensionality in Bi2212. The anomaly found here puts additional constraints on the final theory of high-T_c superconductivity.
description: 4 pages with 4 figures; replaced by the published version
Testing the Modified Press-Schechter Model against N-Body Simulations
Creators: name: Raig, A.
name: Gonzalez-Casado, G.
name: Salvador-Sole, E.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: A modified version of the extended Press-Schechter model for the growth of dark-matter haloes was introduced in two previous papers with the aim at explaining the mass-density relation shown by haloes in high-resolution cosmological simulations. In this model major mergers are well separated from accretion, thereby allowing a natural definition of halo formation and destruction. This makes it possible to derive analytic expressions for halo formation and destruction rates, the mass accretion rate, and the probability distribution functions of halo formation times and progenitor masses. The stochastic merger histories of haloes can be readily derived and easily incorporated into semi-analytical models of galaxy formation, thus avoiding the usual problems encountered in the construction of Monte Carlo merger trees from the original extended Press-Schechter formalism. Here we show that the predictions of the modified Press-Schechter model are in good agreement with the results of N-body simulations for several scale-free cosmologies.
description: 17 pages including 7 figures, MNRAS in press
A numerical solution of the inverse problem in classical celestial mechanics, with application to Mercury's motion
Creators: name: Arminjon, Mayeul
Publisher: name: arXiv
Year: 2001
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: It is attempted to obtain the masses of the celestial bodies, the initial conditions of their motion, and the constant of gravitation, by a global parameter optimization. First, a numerical solution of the N-bodies problem for mass points is described and its high accuracy is verified. The osculating elements are also accurately computed. This solution is implemented in the Gauss iterative algorithm for solving nonlinear least-squares problems. This algorithm is summarized and its efficiency for the inverse problem in celestial mechanics is checked on a 3-bodies problem. Then it is used to assess the accuracy to which a Newtonian calculation may reproduce the DE403 ephemeris, that involves general-relativistic corrections. The parameter optimization allows to reduce the norm and angular differences between the Newtonian calculation and DE403 by a factor 10 (Mercury, Pluto) to 100 (Venus). The maximum angular difference on the heliocentric positions of Mercury is ca. 220" per century before the optimization, and ca. 20" after it. The latter is still far above the observational accuracy. On the other hand, Mercury's longitude of the perihelion is not affected by the optimization: it keeps the linear advance of 43" per century. Key words: Mercury's perihelion. Parameter optimization. Mechanics of point masses.
description: v2: PDF, 17 pages including 4 figures, accepted for publication in Meccanica. Discussion improved, title changed, former Sects. 2-3 summarized to make the new Sect. 2, one figure more
Tribia partschi
Creators: name: Harzhauser, Mathias
name: Landau, Bernard
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Neogastropoda
Cancellariidae
Tribia
Tribia partschi

description: Tribia partschi (Hörnes, 1854)
Figs 3X, 10E 1–E 3
 Cancellaria Partschi Hörnes, 1854: 307, pl. 34, figs 3a–b.
 Cancellaria (r. Trigonostoma) Partschi M. Hoern.— Hoernes & Auinger 1890: 278.
 Cancellaria (Tribia) partschi Hörnes — Sieber 1936: 92.
 Narona (Tribia) partschi (Hörnes, 1856) [sic]— Harzhauser 2002: 110, pl. 9, fig. 10.
 Type material. NHM Vienna (Austria); see below for details.
 Studies and illustrated material. Figs 3X, 9E 1–E 3: specimen illustrated in Hörnes (1854, pl. 34, figs 3a–b), Gainfarn (Austria), height: 27.5 mm, width: 14.1 mm NHMW 2009 z0098/0006 (old number: 1843/0032/0150), holotype by monotypy.
 Discussion. An extremely rare species, which is superficially similar to Tribia mediangulata Sacco, 1894. Both have comparable protoconch morphology (note that the transition from protoconch to teleoconch and the surface of the early teleoconch are abraded in the illustrated specimen). Differences are the more slender outline in T. partschi, the convex early teleoconch whorls, which lack a pronounced angulation, and the spiral sculpture, which consist of evenly spaced, regular spiral cords overrunning the axial ribs. The shoulder of T. partschi appears only on the last two teleoconch whorls and is less strongly angulated. Tribia partschi develops a weak but distinct anterior columellar fold, which is not present in T. mediangulata. A special feature of T. partschi is a slightly more prominent spiral rib on the last whorl delimiting the base. It is formed by the amalgamation of two spiral cords and is absent in T. mediangulata.
 Distribution. Only known from the Paratethys, where it appears already during the latest Early Miocene and persist up to the middle Badenian.
 Paratethys —Karpatian: Korneuburg Basin (Austria: Kleinebersdorf); Badenian: Vienna Basin (Gainfarn).
description: Published as part of Harzhauser, Mathias & Landau, Bernard, 2012, A revision of the Neogene Cancellariid Gastropods of the Paratethys Sea 3472, pp. 1-71 in Zootaxa 3472 on page 54
Estimation of Barley (Hordeum Vulgare L.) Crop Water Requirements Using Cropwat Software in Ksar-Chellala Region, Algeria
Creators: name: Laouisset, M. B.
name: Dellal, A.
name: Laouisset, M. B.
name: Dellal, A.
Publisher: name: Unknown
Year: 2016
Subjects: subject: Research and Development/Tech Change/Emerging Technologies
subject: Research Methods/ Statistical Methods
subject: Hordeum vulgare
subject: water requirements
subject: CROPWAT
subject: Algerian steppes regions.

description: This paper estimates the reference Evapotranspiration (ET0) and Water requirements of barley (Hordeum vulgare L.) in Ksar-Chellala region, Algeria, for one dry year by using CROPWAT software. Determination of Evapotranspiration (ET) is important in application such as irrigation design, irrigation scheduling, water resource management, hydrology and cropping systems modeling. Estimation of crop water requirements of barley (CWRb) respected the methodology adopted by the service of development and management service of FAO, based on the use of software CROPWAT 8.0. The total water requirements for barley depend on a variety of target yields and crops management. The period of climatic data used is 23 years (1990-2012), the average rain in this period is 254 mm. The total rain of the dry year is 190 mm. The results of this study show, during the vegetative cycle of barley which is 6 months, the calculation of ET0 is 453 mm, the potential water which was used by the crop barley is estimated at 281.4 mm, the efficiency of rainfall is 69 mm and a total water requirements of barley (CWRb) equals to 211 mm, this amount distributed on three months coincided with important stages of development in barley. The supplementary irrigation in these conditions with optimal contents equals water requirements estimated by CROPWAT software that increases significantly grain yield of barely. Consequently, the gross irrigation water requirements (GIWR) of 1250000 ha which project to grow barley in the Algerian steppes regions are estimated at 3.77 billion and this for a dry year and a irrigation efficiency of 70%.
Approximating cube roots of integers, after Heron's Metrica III.20
Creators: name: Steihaug, Trond
name: Rogers, D. G.
Publisher: name: arXiv
Year: 2019
Subjects: subject: History and Overview (math.HO)
subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: Heron, in Metrica III.20-22, is concerned with the the division of solid figures - pyramids, cones and frustra of cones - to which end there is a need to extract cube roots. We report here on some of our findings on the conjecture by Taisbak in C.M.Taisbak, Cube roots of integers. A conjecture about Heron's method in Metrika III.20. Historia Mathematica, 41 (2014), 103-104.
Economic Valuation of Mountain Landscapes and Ecosystems: A Meta-Analysis of Case Studies
Creators: name: Žáková Kroupová, Zdenka
name: Havlíková, M.
name: Hálová, P.
name: Malý, M.
name: Žáková Kroupová, Zdenka
name: Havlíková, M.
name: Hálová, P.
name: Malý, M.
Publisher: name: Unknown
Year: 2016
Subjects: subject: Land Economics/Use
subject: Research Methods/ Statistical Methods
subject: Mountain
subject: landscape
subject: ecosystem
subject: value
subject: agriculture
subject: LFA
subject: Europe
subject: meta-analysis.

description: The paper is focused on the value of the European mountain landscape/ecosystem and evaluates the impact of agriculture and agricultural policy on the value of this public good. Based on the meta-analysis of 22 landscape/ecosystem valuation studies, it was found that the average value of the European mountain landscape/ecosystem is 3,068 EUR per hectare per year, and 3.91 EUR per person per day. However, there are regions with a significantly higher value – Tatra in Poland and Alpujarran in Spain. The value is influenced by the position of agriculture in the national economy. Higher values of the mountain landscape/ ecosystem were achieved in countries where the contribution of agriculture to the gross value added is above average. On the other hand, there is no significant relationship between the proportion of farming in the LFA and the value of the mountain landscape/ecosystem. Public support was found to be insufficient to cover the cost of landscape services performed by farmers.
Damping of Nodal Fermions Caused by a Dissipative Mode
Creators: name: Schmeltzer, D.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Using a $d_{x^2 - y^2}$ superconductor in 2+1 dimensions we show that the Nambu Goldstone fluctuations are replaced by dissipative excitations. We find that the nodal quasi-particles damping is caused by the strong dissipative excitations near the nodal points. As a result we find that the scattering rates are linear in frequency and not cubic as predicted in the literature for the ``d'' wave superconductors. Our results explain the recent angle resolved photoemission spectroscopy and optical conductivity in the BSCCO high $T_c$ compounds.
description: 10 pages
Calloeneis francis Gordon and Hanley 2020, new species
Creators: name: Gordon, Robert D.
name: F, Guillermo González
name: Hanley, Guy A.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Coccinellidae
Calloeneis
Calloeneis francis

description: 15. Calloeneis francis Gordon and Hanley, new species
 Description. Male holotype. Length 1.6 mm, width 1.4 mm; dorsal surface shiny. Color reddish brown; head, pronotum yellow; elytra with large, rounded, black basomedian macula on suture (Fig. 64); ventral surface yellow except meso-, metasternun brown; abdomen yellow except apex of median 1/3 of basal ventrite dark brown. Head with dense punctures separated by a diameter or less; pronotal punctures small, separated by a diameter or less; elytral punctures as large as on pronotum, separated by up to three times a diameter; prosternal punctures small, indistinct, separated by about a diameter; mesosternal punctures larger than on prosternum, separated by less than a diameter; metasternal punctures small, separated by two or three times a diameter medially, absent in lateral 1/3; basal abdominal ventrite with small punctures separated by about three times a diameter medially, ventrite 2 with coarse punctures in median 2/3 separated by less than a diameter, ventrites 3, 4 finely, densely punctured medially; ventrite 5 finely, densely punctured. Head slightly narrowed from vertex to clypeus, medially depressed, 1.5 times as wide as eye, clypeal apex truncate (Fig. 65); eye canthus short, about half width of eye. Prosternum with lateral carina on each side curved, extended from apex of intercoxal process to lateral margin of prosternum. Epipleuron slightly descending externally. Postcoxal line on basal abdominal ventrite curved throughout, extended 2/3 distance to rear margin of ventrite. Genitalia with penis guide 7/8 as long as paramere, oval, narrowed to abruptly rounded apex in apical 1/4; paramere slender, curved, parallel sided, apex rounded (Fig. 66, 67); penis lost.
 Female. Similar to male except genitalia with ramus of spermathecal capsule large, bulbous, cornu bent at base, narrowed before apex, apex acute (Fig. 68).
 Variation. Length 1.6 to 2.1 mm. Size of median black macula somewhat variable.
 Type material. Holotype male; Perú Madre de Dios, Res. Biológica CICRA, 27/ 28.XI.2006, 25/ 150m., Leg. Angélico Asenjo, Flight trap intercep,(MUSM). Paratypes, 4, 1, PERU: Madre de Dios Dept., CICRA Field Stn., trl 6, research plot, 12.55207°S 70.110962°W. 295m 11–13.VI.2011 Chaboo team, Malaise trap, PER-11-MAT-029. Paratype, 1, PERU: Cusco Dept. Villa Carmen field station, 1.7 km west cafeteria research transect 12.89213°S 71.41920°W 547m 22–24.V.2011, D.J. Bennett & E. Razuri Malaise trap PER-11-MAT-010; 2, Peru, Satipo, VII, VIII 1942, Paprzycki (MUSM, USNM).
description: Published as part of Gordon, Robert D., F, Guillermo González & Hanley, Guy A., 2020, South American Coccinellidae (Coleoptera), part XX: systematic revision of South American Calloeneis Grote (Cryptognathini), pp. 1-25 in Insecta Mundi 2020 (766) on page 13, DOI: 10.5281/zenodo.5353544
On the Formation of Massive Primordial Stars
Creators: name: Omukai, K.
name: Palla, F.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We investigate the formation by accretion of massive primordial protostars in the range 10 to 300 Msun. The high accretion rate used in the models (4.4 x 10^{-3} Msun/yr) causes the structure and evolution to differ significantly from those of both present-day protostars and primordial zero-age main sequence stars. After an initial expansion of the radius (for < 12 Msun), the protostar undergoes an extended phase of contraction (up to 60 Msun). The stellar surface is not visible throughout most of the main accretion phase, since a photosphere is formed in the infalling envelope. Also, significant nuclear burning does not take place until a protostellar mass of about 80 Msun. As the interior luminosity approaches the Eddington luminosity, the protostellar radius rapidly expands, reaching a maximum around 100 Msun. Changes in the ionization of the surface layers induce a secondary phase of contraction, followed by a final swelling due to radiation pressure when the stellar mass reaches about 300 Msun. This expansion is likely to signal the end of the main accretion phase, thus setting an upper limit to the protostellar mass formed in these conditions.
description: 11 pages and 4 figures. ApJL accepted
Highly efficient and green synthesis of diacylphloroglucinol over treated natural zeolite mordenite and the optimization using response surface method (RSM)
Creators: name: Wahyu Eko Prasetyo
name: Kusumaningsih, Triana
name: Maulidan Firdaus
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biochemistry
subject: Molecular Biology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Sociology
subject: FOS: Sociology

description: Herein, we report a greener and highly efficient route for the Friedel-Craft acylation of phloroglucinol over Indonesian treated natural zeolite mordenite (nHZMOR) catalyst to provide value-added diacylphloroglucinol derivatives under solvent-free conditions. The nHZMOR showed a high catalytic performance in Friedel-Craft acylation of a phloroglucinol reaction, and diacylphloroglucinol derivatives were obtained in excellent yields. The advantages of the use of this catalyst are solvent-free, shorter reaction time, high yields, and its recyclable ability. Easy catalyst separation was demonstrated through filtration and reused several times without noticeably decreasing its catalytic activity; however, with regeneration treatment, its catalytic performance can be improved. The effect of catalyst loading, reaction temperature, solvent effect and reaction time has been extensively studied. In addition, the chemical process was enhanced by the use of coupling automated synthesis equipment with the Response Surface Method (RSM) to optimize the Friedel-Craft acylation reaction. Also, a reasonable reaction mechanism had presented.