cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Influence of an inner core on the long-period forced librations of Mercury
Creators: name: Yseboodt, Marie
name: Rivoldini, Attilio
name: Van Hoolst, Tim
name: Dumberry, Mathieu
Publisher: name: arXiv
Year: 2013
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The planetary perturbations on Mercury's orbit lead to long-period forced librations of Mercury's mantle. These librations have previously been studied for a planet with two layers: a mantle and a liquid core. Here, we calculate how the presence of a solid inner core in the liquid outer core influences the long-period forced librations. Mantle-inner core coupling affects the long-period libration dynamics mainly by changing the free libration: first, it lengthens the period of the free libration of the mantle, and second, it adds a second free libration, closely related to the free gravitational oscillation between the mantle and inner core. The two free librations have periods between 2.5 and 18 y depending on the internal structure. We show that large amplitude long-period librations of 10's of arcsec are generated when the period of a planetary forcing approaches one of the two free libration periods. These amplitudes are sufficiently large to be detectable by spacecraft measurements of the libration of Mercury. The amplitudes of the angular velocity of Mercury's mantle at planetary forcing periods are also amplified by the resonances, but remain much smaller than the current precision of Earth-based radar observations unless the period is very close to a free libration period. The inclusion of mantle-inner core coupling in the rotation model does not significantly improve the fit to the radar observations. This implies that it is not yet possible to determine the size of the inner core of Mercury on the basis of available observations of Mercury's rotation rate. Future observations of the long-period librations may be used to constrain the interior structure of Mercury, including the size of its inner core.
description: Icarus, in press, 2013
SEM and AFM studies of two-phase magnetic alkali borosilicate glasses
Creators: name: Andreeva, N.
name: Tomkovich, M.
name: Naberezhnov, Alexander
name: Nacke, Bernard
name: Filimonov, Alexey
name: Alekseeva, O.
name: Vanina, P.
name: Nizhankovskii, Viktor
Publisher: name: New York, NY : Hindawi Publishing Corporation
Year: 2017
Subjects: subject: SEM
subject: AFM
subject: alkali borosilicate glasses
subject: Dewey Decimal Classification::500 | Naturwissenschaften

description: The morphology and composition of four types of two-phase alkali borosilicate glasses with magnetic atoms prepared by inductive melting have been studied. The results of scanning electron microscopy point to uniform distribution of Na, Si, and O atoms in these samples whilemagnetic iron atoms formball-shaped agglomerates. The magnetic properties of these agglomerates have been confirmed by magnetic force microscopy. Atomic force microscopy had shown that in these samples two different morphological structures, drop-like and dendrite net, are formed. The formation of dendrite-like structure is a necessary condition for production of porous magnetic glasses. The obtained results allowus to optimize the melting and heat treatment processes leading to production of porous alkali borosilicate glasses withmagnetic properties. The first results for nanocompositematerials on the basis ofmagnetic glasses containing the embedded ferroelectrics KH2PO4 demonstrate the effect of applied magnetic field on the ferroelectric phase transition. The morphology and composition of four types of two-phase alkali borosilicate glasses with magnetic atoms prepared by inductive melting have been studied. The results of scanning electron microscopy point to uniform distribution of Na, Si, and O atoms in these samples whilemagnetic iron atoms formball-shaped agglomerates. The magnetic properties of these agglomerates have been confirmed by magnetic force microscopy. Atomic force microscopy had shown that in these samples two different morphological structures, drop-like and dendrite net, are formed. The formation of dendrite-like structure is a necessary condition for production of porous magnetic glasses. The obtained results allowus to optimize the melting and heat treatment processes leading to production of porous alkali borosilicate glasses withmagnetic properties. The first results for nanocompositematerials on the basis ofmagnetic glasses containing the embedded ferroelectrics KH2PO4 demonstrate the effect of applied magnetic field on the ferroelectric phase transition.
Precise Determinations of the Charm and Bottom Quark Masses
Creators: name: Bodenstein, S.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A finite-energy sum-rule is presented that allows for the use of combinations of both positive- and inverse-moment integration kernels. The freedom afforded from being able to employ this large class of integration kernels in our sum-rule is then exploited to obtain the values of the charm and bottom masses with minimum total uncertainty. We obtain as our final results m_c(3 GeV)=986(13) MeV and m_b(10 GeV)=3617(25) MeV, which are amongst the most precise values of these parameters obtained by any method.
description: Talk given at the International Workshop on Determination of the Fundamental Parameters of QCD. To be published in Mod. Phys. Lett. A
The quantum angular Calogero-Moser model
Creators: name: Feigin, Mikhail
name: Lechtenfeld, Olaf
name: Polychronakos, Alexios P.
Publisher: name: New York, NY : Springer International Publishing
Year: 2013
Subjects: subject: Integrable Equations in Physics
subject: Integrable Field Theories
subject: action-angle variables
subject: integrable systems
subject: dynamical symmetries
subject: spherical geometry
subject: lie-algebras
subject: particles
subject: polynomials
subject: potentials
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: The rational Calogero-Moser model of n one-dimensional quantum particles with inverse-square pairwise interactions (in a confining harmonic potential) is reduced along the radial coordinate of R-n to the 'angular Calogero-Moser model' on the sphere Sn-1 We discuss the energy spectrum of tins quantum system, its degeneracies and the eigenstates. The spectral flow with the coupling parameter yields isospectrality for integer increments. Decoupling the center of mass before effecting the spherical reduction produces a 'relative angular Calogero-Moser which is analyzed in parallel. We generalize our considerations to the Calogero-Moser models associated with Coxeter groups. Finally, we attach spin degrees of freedom to our particles and extend the results to the spin-Calogero system.
The molecular steps of citrinin biosynthesis in fungi
Creators: name: He, Yi
name: Cox, Russell J.
Publisher: name: Cambridge : Royal Society of Chemistry
Year: 2016
Subjects: subject: citrinin
subject: biosynthesis
subject: Monascus ruber M7
subject: fungus
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: The individual steps of citrinin 1 biosynthesis in Monascus ruber M7 were determined by a combination of targeted gene knockout and heterologous gene expression in Aspergillus oryzae. The pathway involves the synthesis of an unreduced trimethylated pentaketide 10 by a non-reducing polyketide synthase (nrPKS) known as CitS. Reductive release yields the keto-aldehyde 2 as the first enzyme-free intermediate. The nrPKS appears to be assisted by an as-yet cryptic hydrolysis step catalysed by CitA which was previously wrongly annotated as an oxidase. CitB is a non-heme iron oxidase which oxidises the 12-methyl of 2 to an alcohol. Subsequent steps are catalysed by CitC which oxidises the 12-alcohol to an aldehyde and CitD which converts the 12-aldehyde to a carboxylic acid. Final reduction of C-3 by CitE yields citrinin. The pathway rules out alternatives involving intramolecular rearrangements, and fully defines the molecular steps for the first time and corrects previous errors in the literature. The activity of CitB links the pathway to fungal tropolone biosynthesis and the observation of aminated shunt products links the pathway to azaphilone biosynthesis. Production of citrinin by coordinated production of CitS + CitA–CitE in the heterologous host A. oryzae, in which each gene was driven by a constitutive promoter, was achieved in high yield.
Experimental searches of neutrinoless double beta decay
Creators: name: Cremonesi, Oliviero
Publisher: name: arXiv
Year: 2012
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Neutrinoless double decay is a unique probe for lepton number conservation and neutrino properties. It allows to investigate the Dirac/Majorana nature of the neutrinos and their absolute mass scale (hierarchy problem) with unprecedented sensitivity. A number of experiments are presently under preparation to cover the quasi-degenerate region of the neutrino mass spectrum. Improved sensitivities are however required to sound the so-called inverted hierarchy region. This is a real challenge faced by a number of new proposed projects, based either on large expansions of the present experiments or on new ideas top improve the technical performance or reduce the background contributions. A review of the most relevant ongoing experiments is given. The most relevant parameters contributing to the experimental sensitivity are discussed and a critical comparison of the future projects is proposed.
description: 5 pages - 2 tables - 1 figure; NOW2012 conference, Conca Specchiulla (Otranto, Lecce, Italy), September 9-16, 2012
Self-adaptive multimethod optimization applied to a tailored heating forging process
Creators: name: Baldan, M.
name: Steinberg, T.
name: Baake, E.
Publisher: name: Bristol : Institute of Physics Publishing
Year: 2018
Subjects: subject: Energy utilization
subject: Multiobjective optimization
subject: Design case studies
subject: Forging process
subject: Heating time
subject: Optimal controls
subject: Self-Adaptive
subject: Forging
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau::621 | Angewandte Physik::621,3 | Elektrotechnik, Elektronik

description: The presented paper describes an innovative self-adaptive multi-objective optimization code. Investigation goals concern proving the superiority of this code compared to NGSA-II and applying it to an inductor's design case study addressed to a "tailored" heating forging application. The choice of the frequency and the heating time are followed by the determination of the turns number and their positions. Finally, a straightforward optimization is performed in order to minimize energy consumption using "optimal control".
Mechanical Characterization of Brain Tissue in Compression at Dynamic Strain Rates
Creators: name: Rashid, Badar
name: Destrade, Michel
name: Gilchrist, Michael
Publisher: name: arXiv
Year: 2013
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Medical Physics (physics.med-ph)
subject: Tissues and Organs (q-bio.TO)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: Traumatic brain injury (TBI) occurs when local mechanical load exceeds certain tolerance levels for brain tissue. Extensive research has been done previously for brain matter experiencing compression at quasistatic loading; however, limited data is available to model TBI under dynamic impact conditions. In this research, an experimental setup was developed to perform unconfined compression tests and stress relaxation tests at strain rates < 90/s. The brain tissue showed a stiffer response with increasing strain rates, showing that hyperelastic models are not adequate. Specifically, the compressive nominal stress at 30% strain was 8.83 +/- 1.94, 12.8 +/- 3.10 and 16.0 +/- 1.41 kPa (mean +/- SD) at strain rates of 30, 60 and 90/s, respectively. Relaxation tests were also conducted at 10%-50% strain with the average rise time of 10 ms, which can be used to derive time dependent parameters. Numerical simulations were performed using one-term Ogden model with initial shear modulus mu_0 = 6.06 +/- 1.44, 9.44 +/- 2.427 and 12.64 +/- 1.227 kPa (mean +/- SD) at strain rates of 30, 60 and 90/s, respectively. A separate set of bonded and lubricated tests were also performed under the same test conditions to estimate the friction coefficient mu, by adopting combined experimental - computational approach. The values of mu were 0.1 +/- 0.03 and 0.15 +/- 0.07 (mean +/- SD) at 30 and 90/s strain rates, respectively, indicating that pure slip conditions cannot be achieved in unconfined compression tests even under fully lubricated test conditions. The material parameters obtained in this study will help to develop biofidelic human brain finite element models, which can subsequently be used to predict brain injuries under impact conditions.
description: 31 pages
Up-regulation of pathogenesis-related proteins in the apoplast of Malus domestica after application of a non-pathogenic bacterium
Creators: name: Kürkcüoglu, S.
name: Piotrowski, M.
name: Gau, A.E.
Publisher: name: Berlin : De Gruyter
Year: 2004
Subjects: subject: Apoplast
subject: Biological Control
subject: Pathogenesis-related Proteins
subject: peptide fragment
subject: vegetable protein
subject: amino acid sequence
subject: apple
subject: article
subject: chemistry
subject: gene expression regulation
subject: genetic transcription
subject: genetics
subject: growth, development and aging
subject: metabolism
subject: microbiology
subject: molecular genetics
subject: plant leaf
subject: Pseudomonas fluorescens
subject: reverse transcription polymerase chain reaction
subject: Amino Acid Sequence
subject: Gene Expression Regulation, Plant
subject: Malus
subject: Molecular Sequence Data
subject: Peptide Fragments
subject: Plant Leaves
subject: Plant Proteins
subject: Reverse Transcriptase Polymerase Chain Reaction
subject: Transcription, Genetic
subject: Bacteria (microorganisms)
subject: Fungi
subject: Malus x domestica
subject: Pseudomonas
subject: Venturia inaequalis
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie

description: The intercellular washing fluid (IWF) of Malus domestica cv. Holsteiner Cox before and after application of the non-pathogenic bacterium Pseudomonas fluorescens Bk3 to the leaves was investigated in a comparative manner. SDS-PAGE in combination with ESI Q-ToF mass spectrometry, and homology search in relevant data bases revealed the highly up-regulated expression of several pathogenesis-related plant proteins in the apoplast of the leaves treated with P. fluorescens. These proteins were β-1,3-glucanase, chitinase, thaumatin-like protein, ribonuclease-like protein, and a hevein-like protein. Moreover, a 9 kDa non-specific lipid transfer protein was significantly reduced after the application of P. fluorescens. The possible relevance of a pre-treatment of apple cultivars with the non-pathogenic bacterium P. fluorescens Bk3, as an alternative method to the treatment with fungicides, for increasing the resistance of susceptible apple cultivars against an infection with the fungus Venturia inaequalis is discussed.
THE EFFECT OF INTERNAL MARKETING ON CUSTOMER SATISFACTION: THE CASE OF PRIVATE UNIVERSITIES IN BISHOFTU TOWN
Creators: name: HABTAMU WONDOSSEN
Publisher: name: Zenodo
Year: 2019

description: The purpose of this paper is to explore the effect of internal marketing on customers’ satisfaction the case of Private Universities in Bishoftu Town. The study was Explanatory and quantitative in its approach. A structured questionnaire was developed. The hypotheses were simultaneously tested on a sample of 267 out of 316 questioners distributed to customers and employees of the universities by selecting convenience sampling technique, giving a valid response rate of 84 percent. Several analytical techniques were used to assess the relationships among the variables under investigation such as Pearson correlation, multiple linear regressions. The application used to analyze and examine the hypotheses is the SPSS V20. The findings of this study have shown a significant effect of internal marketing dimensions on customer satisfaction at the level of (α ≤ 0.05.The entire IM dimension in this study is positively correlated with customer satisfaction. The regression result shows that the adjusted R Square value was .622 and this implied that IM dimensions (predictors) accounts for 62.2% of the variation in customer satisfaction which is significant and 37.7% are other extraneous variables that can affect customer satisfaction
Generation and measurement of sub-picosecond electron bunch in photocathode rf gun
Creators: name: Li, Weiwei
name: He, Zhiagng
name: Jia, Qika
Publisher: name: arXiv
Year: 2013
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: We consider a scheme to generate sub-picosecond electron bunch in the photocathode rf gun by improving the acceleration gradient in the gun, suitably tuning the bunch charge, the laser spot size and the acceleration phase, and reducing the growth of transverse emittance by laser shaping. A nondestructive technique is also reported to measure the electron bunch length, by measuring the high-frequency spectrum of wakefield radiation which is caused by the passage of a relativistic electron bunch through a channel surrounded by a dielectric.
Constraining the FRB mechanism from scintillation in the host galaxy
Creators: name: Kumar, Pawan
name: Beniamini, Paz
name: Gupta, Om
name: Cordes, James M.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Most FRB models can be divided into two groups based on the distance of the radio emission region from the central engine. The first group of models, the so-called `nearby' or magnetospheric models, invoke FRB emission at distances of 10$^9$ cm or less from the central engine, while the second `far-away' models involve emission from distances of 10$^{11}$ cm or greater. The lateral size for the emission region for the former class of models ($\lesssim$ 10$^7$ cm) is much smaller than the second class of models ($\gtrsim 10^9$ cm). We propose that an interstellar scattering screen in the host galaxy is well-suited to differentiate between the two classes of models, particularly based on the level of modulations in the observed intensity with frequency, in the regime of strong diffractive scintillation. This is because the diffractive length scale for the host galaxy's ISM scattering screen is expected to lie between the transverse emission-region sizes for the `nearby' and the `far-away' class of models. Determining the strength of flux modulation caused by scintillation (scintillation modulation index) across the scintillation bandwidth ($\sim 1/2πδt_s$) would provide a strong constraint on the FRB radiation mechanism when the scatter broadening ($δt_s$) is shown to be from the FRB host galaxy. The scaling of the scintillation bandwidth as $\sim ν^{4.4}$ may make it easier to determine the modulation index at $\gtrsim$ 1 GHz.
description: Paper accepted for publication in MNRAS
Anisotropic chiral d+id superconductivity in NaxCoO2 yH2O
Creators: name: Kiesel, Maximilian
name: Platt, Christian
name: Hanke, Werner
name: Thomale, Ronny
Publisher: name: arXiv
Year: 2013
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Since its discovery, the superconducting phase in water-intercalated sodium cobaltates NaxCoO2 yH2O (x~0.3, y~1.3) has posed fundamental challenges in terms of experimental investigation and theoretical understanding. By a combined dynamical mean-field and renormalization group approach, we find an anisotropic chiral d+id wave state as a consequence of multi-orbital effects, Fermi surface topology, and magnetic fluctuations. It naturally explains the singlet property and close-to-nodal gap features of the superconducting phase as indicated by experiments.
description: 4 pages plus references, 5 figures
Scale-up of the electrodeposition of ZnO/Eosin Y hybrid thin films for the fabrication of flexible dye-sensitized solar cell modules
Creators: name: Bittner, Florian
name: Oekermann, Torsten
name: Wark, Michael
Publisher: name: Basel : MDPI AG
Year: 2018
Subjects: subject: Dye-sensitized solar cell
subject: Electrochemical deposition
subject: Eosin Y
subject: Scale-up
subject: Solar module
subject: Zinc oxide
subject: Anodes
subject: Conversion efficiency
subject: Deposition
subject: Efficiency
subject: Electric resistance
subject: Electrodeposition
subject: Electrodes
subject: Fabrication
subject: ITO glass
subject: Metallic films
subject: Nanocomposites
subject: Oxide films
subject: Reduction
subject: Solar cells
subject: Temperature
subject: Thin films
subject: Tin
subject: Tin compounds
subject: Tin oxides
subject: Zinc compounds
subject: Flexible dye sensitized solar cell
subject: Fluorine doped tin oxide
subject: High specific surface area
subject: Low-temperature fabrication
subject: Dye-sensitized solar cells
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau::624 | Ingenieurbau und Umwelttechnik

description: The low-temperature fabrication of flexible ZnO photo-anodes for dye-sensitized solar cells (DSSCs) by templated electrochemical deposition of films was performed in an enlarged and technical simplified deposition setup to demonstrate the feasibility of the scale-up of the deposition process. After extraction of eosin Y (EY) from the initially deposited ZnO/EY hybrid films, mesoporous ZnO films with an area of about 40 cm2 were reproducibly obtained on fluorine doped tin oxide (FTO)-glass as well as flexible indium tin oxide (ITO)-polyethylenterephthalate (PET) substrates. With a film thickness of up to 9 μm and a high specific surface area of up to about 77 m2·cm-3 the ZnO films on the flexible substrates show suitable properties for DSSCs. Operative flexible DSSC modules proved the suitability of the ZnO films for use as DSSC photo-anodes. Under a low light intensity of about 0.007 sun these modules achieved decent performance parameters with conversion efficiencies of up to 2.58%. With rising light intensity the performance parameters deteriorated, leading to conversion efficiencies below 1% at light intensities above 0.5 sun. The poor performance of the modules under high light intensities can be attributed to their high series resistances. © 2018 by the authors.
title: Rural Intangible Cultural Heritage
Creators: name: Su, Junjie
name: Amer, Mohamed Badry Kamel Basuny
name: Liu, Xuanlin
Publisher: name: University of Massachusetts Amherst
Year: 2019

description: Rural areas is the place where rural intangible heritage is found rich and diverse, whereas vulnerable to fast social, cultural, political and economic transformations, in particular in developing and underdeveloped areas. Although the concept of Intangible Cultural Heritage (ICH) has been established in UNESCO and accepted by many ICH Convention signatories, it has not been consistently adopted and implemented from international level to local level without divergencies. An analysis of rural ICH is to analyse how rural traditional culture, memories and past are used by different stakeholders for current society. (Re)defining rural ICH is a way to both rethink and develop the existing concepts of cultural heritage held by national and institutional discourses. This panel, which investigates three cases in China and Egypt, will provide evidence and theoretical rethought on the making and use of the concept of ICH in developing countries where the tangible heritage discourses have been well established and the intangible heritage discourse is polemical. These three papers will present diverse and emerging uses and discourses of ICH in terms of conservation, exhibition, commodification, education and musealisation from various perspectives.
title: Egyptian Rural Practices: Living Heritage and Musealization
Creators: name: Amer, Mohamed Badry Kamel Basuny
Publisher: name: University of Massachusetts Amherst
Year: 2019

description: Rural heritage is a complicated cultural knowledge. Considering the visitors who come, to the living heritage sites, spending their spare time and at the same time, to get a piece of new knowledge in a nostalgic context, the heritage exhibition is the ideal EDUTAINMENTAL deliverable that could transmit the rural heritage knowledge using the interactive thinking methodology. The former approach creates a kind of curiosity for the visitors guaranteeing the life-long learning process. Therefore, reviewing the cultural significance of intangible cultural heritage, especially the manifestations of the rural socio-cultural heritage practices, the research paper aims at presenting a new aspect musealization that contributes to sustaining the cultural heritage especially this kind of the material culture. The musealized spaces will contribute in particular to revive the cultural identity of the Egyptian rural communities; as well as will be spots to present, educate and safeguard the folklife.
Water resistance and thermal behavior of metakaolin-phosphate-based geopolymer cements
Creators: name: Nobouassia Bewa, Christelle
name: Tchakouté, Hervé K.
name: Fotio, Daniel
name: Rüscher, Claus H.
name: Kamseu, Elie
name: Leonelli, Cristina
Publisher: name: Abingdon : Taylor and Francis Ltd.
Year: 2018
Subjects: subject: geopolymer cements
subject: Metakaolin
subject: phosphoric acid solution
subject: water resistant
subject: Compressive strength
subject: Concretes
subject: Geopolymers
subject: Infrared spectroscopy
subject: Inorganic polymers
subject: Mechanical properties
subject: Phosphoric acid
subject: Silicon compounds
subject: Thermoanalysis
subject: X ray diffraction analysis
subject: X rays
subject: Crystalline phasis
subject: Geopolymer cement
subject: Metakaolins
subject: Micro-structural properties
subject: Presence of water
subject: Thermal behaviors
subject: Thermomechanical properties
subject: Water resistant
subject: Cements
subject: Dewey Decimal Classification::500 | Naturwissenschaften::550 | Geowissenschaften

description: The main target of this work was to investigate the thermal behavior and water resistance of geopolymer cement made from metakaolin as an aluminosilicate source using phosphoric acid solution (10 M) as a hardener. The obtained geopolymer cements were cured at room temperature for 28 days, the one part was treated at 200°C, 400°C, 600°C, 800°C and 1000°C, and the others were soaked in water for 28 days. The geopolymer cements were characterized by microstructural properties using X-ray diffractometry, infrared spectroscopy, microstructure, physical property based on water resistance and thermo-mechanical properties (thermal analysis, compressive strength). The results show that the compressive strength of the unheated geopolymer cement was 87.96 MPa. The ones soaked in water revealed a strength of 40.71 MPa. This indicates that the specimens soaked in water lose about 54% of their strengths. The X-ray patterns of heated geopolymer cements showed the formation of crystalline phases even at relatively low temperatures. It was typically found that the compressive strength of metakaolin-phosphate-based geopolymer cements decreases due to the hydrolysis of Si-O-P bonds in the presence of water.
Two alanine aminotranferases link mitochondrial glycolate oxidation to the major photorespiratory pathway in Arabidopsis and rice
Creators: name: Niessen, Markus
name: Krause, Katrin
name: Horst, Ina
name: Staebler, Norma
name: Klaus, Stephanie
name: Gaertner, Stefanie
name: Kebeish, Rashad
name: Araujo, Wagner L.
name: Fernie, Alisdair R.
name: Peterhansel, Christoph
Publisher: name: Oxford : Oxford University Press
Year: 2012
Subjects: subject: Aminotransferase
subject: mitochondrion
subject: photorespiration
subject: plant evolution
subject: alanine aminotransferase
subject: carbon dioxide
subject: glycine
subject: glycolic acid
subject: glycolic acid derivative
subject: oxidoreductase
subject: vegetable protein
subject: Arabidopsis
subject: article
subject: enzymology
subject: genetics
subject: metabolism
subject: oxidation reduction reaction
subject: photosynthesis
subject: rice
subject: Alanine Transaminase
subject: Carbon Dioxide
subject: Glycine
subject: Glycolates
subject: Mitochondria
subject: Oryza sativa
subject: Oxidation-Reduction
subject: Oxidoreductases
subject: Photosynthesis
subject: Plant Proteins
subject: Arabidopsis thaliana
subject: Chlorophyta
subject: Embryophyta
subject: Nicotiana tabacum
subject: Dewey Decimal Classification::500 | Naturwissenschaften::580 | Pflanzen (Botanik)

description: The major photorespiratory pathway in higher plants is distributed over chloroplasts, mitochondria, and peroxisomes. In this pathway, glycolate oxidation takes place in peroxisomes. It was previously suggested that a mitochondrial glycolate dehydrogenase (GlcDH) that was conserved from green algae lacking leaf-type peroxisomes contributes to photorespiration in Arabidopsis thaliana. Here, the identification of two Arabidopsis mitochondrial alanine:glyoxylate aminotransferases (ALAATs) that link glycolate oxidation to glycine formation are described. By this reaction, the mitochondrial side pathway produces glycine from glyoxylate that can be used in the glycine decarboxylase (GCD) reaction of the major pathway. RNA interference (RNAi) suppression of mitochondrial ALAAT did not result in major changes in metabolite pools under standard conditions or enhanced photorespiratroy flux, respectively. However, RNAi lines showed reduced photorespiratory CO2 release and a lower CO2 compensation point. Mitochondria isolated from RNAi lines are incapable of converting glycolate to CO2, whereas simultaneous overexpression of GlcDH and ALAATs in transiently transformed tobacco leaves enhances glycolate conversion. Furthermore, analyses of rice mitochondria suggest that the side pathway for glycolate oxidation and glycine formation is conserved in monocotyledoneous plants. It is concluded that the photorespiratory pathway from green algae has been functionally conserved in higher plants.
title: Ksar Ait Ben Haddou : quelle démarche pour le développement social durable d'un site patrimoine mondial ?
Creators: name: Zerouali, Hayat
name: Mouna, Loubna
name: Guenoun, Hicham
name: El Gaied, Mouna
name: Smati, Nozha
name: Merah, Aissa
Publisher: name: University of Massachusetts Amherst
Year: 2019

description: Dans une interaction entre chercheure et acteurs associatifs. l'objectif de ce travail est de présenter et d'analyser cette dynamique sociale : les incidences positives mais aussi les tensions, les résistances qu'elle engendre.
Quasistatic Stick-slip in Dislocation Core and Frenkel-Kontorova Chain
Creators: name: Bhattacharya, M.
name: Dutta, A.
name: Barat, P.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: By means of atomistic simulations, we demonstrate that a dislocation core exhibits intermittent quasistatic restructuring during incremental shear within the same Peierls valley. This can be regarded as a stick-slip transition, which is also reproduced for a one-dimensional Frenkel-Kontorova chain under rigid boundary conditions. This occurs due to a discontinuous jump in an order parameter of the system, which signifies the extent of region forbidden for the presence of particles in the chain. The stick-slip phenomenon observed in the dislocation core is also shown to be reflected after dimensionality reduction of the multidimensional atomic coordinates, which provides a basis for comparison with the simple one-dimensional chain.
title: Reconceptualising Intangible heritage: The case of the Mongolian Ger
Creators: name: Liu, Xuanlin
Publisher: name: University of Massachusetts Amherst
Year: 2019

description: This research uses Mongolian Ger as an example. Mongolian Ger is traditional dwellings that have predominantly located in central Asia for over three thousand years. These traditional dwellings form an essential part of pastoralism. The making craft of Mongolian Ger has been listed as national intangible cultural heritage in China in 2008. However, the Ger in recent times has been influenced by permanent grazing, tourism and modernity. The wooden material has been replaced by bricks, and the Gers has been transformed to solid structure instead of movable ones. They are now frequently used as tourism attractions and restaurants that have less original functions, which corresponds to the changes of Inner Mongolia’s society.
Proving Termination Starting from the End
Creators: name: Ganty, Pierre
name: Genaim, Samir
Publisher: name: arXiv
Year: 2013
Subjects: subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences

description: We present a novel technique for proving program termination which introduces a new dimension of modularity. Existing techniques use the program to incrementally construct a termination proof. While the proof keeps changing, the program remains the same. Our technique goes a step further. We show how to use the current partial proof to partition the transition relation into those behaviors known to be terminating from the current proof, and those whose status (terminating or not) is not known yet. This partition enables a new and unexplored dimension of incremental reasoning on the program side. In addition, we show that our approach naturally applies to conditional termination which searches for a precondition ensuring termination. We further report on a prototype implementation that advances the state-of-the-art on the grounds of termination and conditional termination.
description: 16 pages
The biofilm inhibitor carolacton enters Gram-negative cells: Studies using a Tol-Cdeficient strain of Escherichia coli
Creators: name: Donner, Jannik
name: Reck, Michael
name: Bunk, Boyke
name: Jarek, Michael
name: App, Constantin Benjamin
name: Meier-Kolthoff, Jan P.
name: Overmann, Jörg
name: Müller, Rolf
name: Kirschning, Andreas
name: Wagner-Döbler, Irene
Publisher: name: Washington : American Society for Microbiology
Year: 2017
Subjects: subject: Antimicrobial activity
subject: Antimicrobial agents
subject: Carolacton
subject: Drug efflux
subject: Drug resistance mechanisms
subject: Efflux pumps
subject: Gene sequencing
subject: Genome analysis
subject: Gram-negative bacteria
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie

description: The myxobacterial secondary metabolite carolacton inhibits growth of Streptococcus pneumoniae and kills biofilm cells of the caries- and endocarditisassociated pathogen Streptococcus mutans at nanomolar concentrations. Here, we studied the response to carolacton of an Escherichia coli strain that lacked the outer membrane protein TolC. Whole-genome sequencing of the laboratory E. coli strain TolC revealed the integration of an insertion element, IS5, at the tolC locus and a close phylogenetic relationship to the ancient E. coli K-12. We demonstrated via transcriptome sequencing (RNA-seq) and determination of MIC values that carolacton penetrates the phospholipid bilayer of the Gram-negative cell envelope and inhibits growth of E. coli TolC at similar concentrations as for streptococci. This inhibition is completely lost for a C-9 (R) epimer of carolacton, a derivative with an inverted stereocenter at carbon atom 9 [(S) → (R)] as the sole difference from the native molecule, which is also inactive in S. pneumoniae and S. mutans, suggesting a specific interaction of native carolacton with a conserved cellular target present in bacterial phyla as distantly related as Firmicutes and Proteobacteria. The efflux pump inhibitor (EPI) phenylalanine arginine β-naphthylamide (PAβN), which specifically inhibits AcrAB-TolC, renders E. coli susceptible to carolacton. Our data indicate that carolacton has potential for use in antimicrobial chemotherapy against Gram-negative bacteria, as a single drug or in combination with EPIs. Strain E. coli TolC has been deposited at the DSMZ; together with the associated RNA-seq data and MIC values, it can be used as a reference during future screenings for novel bioactive compounds. © 2017 Donner et al.
title: Patrimoine rural matériel et immatériel au magrheb : médiations, tourisme et dévelopemment social. Ksar Ait Ben Haddou, Village de Chenini, Ksours de Tataouine et Ksar Temacine // Tangible and intangible rural heritage in Magrheb: mediations, tourism and social development in Ksar Ait Ben Haddou, Village of Chenini, Ksours of Tataouine and Ksar Temacine
Creators: name: Zerouali, Hayat
name: Mouna, Loubna
name: Guennoun, Moulay Hicham
name: El Gaied, Mouna
name: Smati, Nozha
name: Merah, Aissa
Publisher: name: University of Massachusetts Amherst
Year: 2019

description: In this panel, we will analyze and discuss the transformations of rural heritage functions in the Maghreb from several terrains: Morocco, Tunisia and Algeria. What motivates this Maghreb approach is the socio-cultural and historical substratum that Maghreb societies share as well as the issues related to the preservation and enhancement of their cultural heritage (Ahmed Skounti, 2009). In our respective fields, new dynamics both in terms of development policies, new forms of mediation, and new, mainly social actors, are built around the material and immaterial cultural heritage, which is essentially architectural and anthropological.
title: Rural Intangible Cultural Heritage and Ethnic Tourism: Experiences of Yunnan, China
Creators: name: Su, Junjie
Publisher: name: University of Massachusetts Amherst
Year: 2019

description: China is an active player in the international arena of intangible cultural heritage (ICH). While China is transforming from an agricultural country to an industrial country, rural heritage, either tangible or intangible, is facing tremendous challenges and opportunities. Among Chinese provinces, Yunnan in Southwest of China can be regarded as the best case to investigate the issues of protection, use and transmission of rural heritage as Yunnan is a unique province of China because of its ethnic cultural diversity and geographic diversity. Based on literary studies and fieldworks, this paper illustrates history, cases, theories and practices in the protection and use of ICH in ethnic tourism development in the past 20 years. Yunnan has long been regarded as a “primitive and peripheral” part of China and ethnic cultures were treated as “primitive culture” that needs transformation. However, after China’s reform in 1978, the ethnic culture in rural areas in Yunnan has been changed into traditional and folk culture, cultural heritage (ICH, World Heritage, protected traditional villages and towns, etc) and ethnic tourism attractions. Meanwhile, several rural areas in Yunnan have evolved from a backward area into a popular tourism destination recognised home and abroad. With specific cases in terms of performing arts (dance, music, etc), handicrafts (metal, ceramics, textile, wood carving, etc), festivals and ICH related to cultural spaces (traditional villages, towns, landscapes, etc) in Yunnan, the paper will elaborate how rural ICH is transmitted, and/or re-created in a matrix of tourism commodification with participation of the local governments, entrepreneurs, local elites, community members and tourists. As well as advancing theoretical discussions in regard to authenticity, commodification, continuity, cultural capital and Critical Heritage Studies, this paper also reflects on the practical strategies in commodifying rural ICH in ethnic tourism.
title: К читателям
Creators: name: ., Валерий Петрович Мещанов
Publisher: name: Издательство Радиотехника
Year: 2019

description: Валерий Петрович Мещанов – директор научно-производственного предприятия «НИКА-СВЧ», доктор технических наук, профессор, Заслуженный деятель науки РФ, Заслуженный изобретатель РФ, лауреат государственных премий РФ в области науки и техники

Традиционно в старейшем российском научно-техническом журнале «Радиотехника» ежегодно под рубрикой «Микроволновая техника (работы ученых г. Саратова)» представлены результаты исследований ученых и инженеров университетов и научно-производственных организаций нашего региона.
В 2019 г. в двух номерах журнала «Радиотехника» публикуются статьи специалистов классического и технического университетов нашего города, Саратовского филиала Института радиотехники и электроники им. В.А. Котельникова Российской академии наук, а также ряда ведущих предприятий радиоэлектронного профиля, таких как «Алмаз», «Контакт», «Алмаз-Фазотрон», «НИКА-СВЧ», Центральный НИИ измерительной аппаратуры и др. Вследствие сложившихся научно-технических связей ряд публикаций подготовлен нашими учеными в содружестве со специалистами ИРЭ РАН им. В.А. Котельникова, МГТУ им. Н.Э. Баумана (Москва), НПП «Исток» им. А.И. Шокина» (г. Фрязино, Московская область), Мытищинского НИИ радиоизмерительных приборов (г. Мытищи, Московская область), МО РФ (Москва) и др.
Свои работы авторы – ученые г. Саратова посвящают памяти ушедшего из жизни в июне этого года Дмитрия Александровича Усанова – известного советского и российского ученого, заведующего кафедрой физики твердого тела Саратовского национального исследовательского государственного университета им. Н.Г. Чернышевского, постоянного автора публикаций в журнале «Радиотехника».
Tai2Cl2, eine neue Verbindung vom MX4-Typ (M=Nb, Ta; X=C1, Br, I)
Creators: name: Meyer, H.-Jürgen
Publisher: name: Berlin : De Gruyter
Year: 1991
Subjects: subject: Quasi One-Dimensional Chain Compound
subject: Crystal structure
subject: Electronic Structure
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: The new compound TaI2Cl2 is formed from the reaction of TaCl5 with Tal5 and Ta powder in sealed Ta containers at 450 °C. The crystal structure contains quasi one-dimensional chains of TaI4/2Cl2 octahedra, sharing opposite edges (orthorhombic, Immm, a = 831.5(5) pm, b = 993.7(4) pm, c = 748.5(4) pm; R = 0.037 for 297 independent intensities). Each chain has two Ta bridging iodine bonds alternating in length along the chain direction yielding short (314.9(2) pm) and long (433.6(3) pm) Ta-Ta distances. The electronic structure indicates a Peierls-type stabilization.
title: Видеоинформационное обеспечение учебного процесса как фактор формирования медиакультуры учащихся
Creators: name: Кузьмина, Маргарита
Publisher: name: Вестник Вятского государственного университета
Year: 2009

description: Эпоха информационных технологий стремительно изменяет учебный процесс образовательных учреждениях и систему в образования в целом. Создавая простор для воплощения исследовательских решений и педагогических идей в разработке и применении современного видеоконтента, на смену старым видеоформатам приходит новое нелинейное цифровое видео. Внедрение в учебный процесс видеоматериалов нового поколения способствует формированию медиакультуры учащихся.
Phonons scattering off discrete asymmetric solitons in the absence of a Peierls-Nabarro potential
Creators: name: Saadatmand, Danial
name: Marjaneh, Aliakbar Moradi
name: Askari, Alidad
name: Weigel, Herbert
Publisher: name: arXiv
Year: 2023
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We analyze the interaction of lattice vibrations (phonon wave-packets) with an asymmetric kink soliton initially at rest. We employ the $ϕ^6$ model in one space and one time dimensions for various lattice spacings and consider two different discretization prescriptions for the field potential that do not generate Peierls-Nabarro potentials, i.e. the kink can be placed anywhere along the lattice beyond discrete translational invariance. Since the $ϕ^6$ model kink is neither symmetric nor anti-symmetric under spatial reflections we simulate the cases where the wave-packet approaches the kink from negative or positive spatial infinity. We extract the energy transmission and reflection coefficients as functions of the central frequency of the phonon wave-packet for the different lattice spacings. For large lattice spacings the wave-packet is always fully reflected while for smaller spacing the amount of reflection and transmission depends on the central frequency. We also identify scenarios in which the target kink acquires a non-zero velocity from its interaction with the wave-packet.
description: 14 pages, 8 figures, v2: matches journal version
title: Диагностика формирования медиакультуры учащихся в процессе создания образовательных видеоматериалов
Creators: name: Кузьмина, Маргарита
Publisher: name: Теория и практика общественного развития
Year: 2011

description: В статье рассматриваются основные аспекты диагностики уровня сформированности медиакультуры учащихся в процессе создания образовательных видеоматериалов при проектной, коллективной творческой и другой внеурочной деятельности в образовательных учреждениях.
Sloshing cold fronts in galaxy groups and their perturbing disk galaxies: an X-ray, Optical and Radio Case Study
Creators: name: Gastaldello, F.
name: Di Gesu, L.
name: Ghizzardi, S.
name: Giacintucci, S.
name: Girardi, M.
name: Roediger, E.
name: Rossetti, M.
name: Brighenti, F.
name: Buote, D. A.
name: Eckert, D.
name: Ettori, S.
name: Humphrey, P. J.
name: Mathews, W. G.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present a combined X-ray, optical, and radio analysis of the galaxy group IC 1860 using the currently available Chandra and XMM data, literature multi-object spectroscopy data and GMRT data. The Chandra and XMM imaging and spectroscopy reveal two surface brightness discontinuities at 45 and 76 kpc shown to be consistent with a pair of cold fronts. These features are interpreted as due to sloshing of the central gas induced by an off-axis minor merger with a perturber. This scenario is further supported by the presence of a peculiar velocity of the central galaxy IC 1860 and the identification of a possible perturber in the optically disturbed spiral galaxy IC 1859. The identification of the perturber is consistent with the comparison with numerical simulations of sloshing. The GMRT observation at 325 MHz shows faint, extended radio emission contained within the inner cold front, as seen in some galaxy clusters hosting diffuse radio mini-halos. However, unlike mini-halos, no particle reacceleration is needed to explain the extended radio emission, which is consistent with aged radio plasma redistributed by the sloshing. There is strong analogy of the X-ray and optical phenomenology of the IC 1860 group with two other groups, NGC 5044 and NGC 5846, showing cold fronts. The evidence presented in this paper is among the strongest supporting the currently favored model of cold-front formation in relaxed objects and establishes the group scale as a chief environment to study this phenomenon.
description: 22 pages, 21 figures, accepted for publication in the Astrophysical Journal
Potamogeton alpinus
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: S. alpinus (L.) Scop. Cat. 201. Var.nudus (Jacq.) Schinz et Keller (S. cordifolius [L. f.] Clairv., S.alp. var. cordifolius DC.,S. cordatusKoch) - Dies die typische Form. Keine neuen Fundorte bekanntgeworden. Var.alatus (L.) SchinzetKeller (var. auriculatus [Jacq.] DC.) - l: Creux deNovel (Paicheinherb. de Palezieux).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556