cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The Radio-X-ray Connection in Young Stellar Objects in the Orion Nebula Cluster
Creators: name: Forbrich, Jan
name: Wolk, Scott J.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: (Abridged) Context: Both X-ray and radio observations offer insight into the high-energy processes of young stellar objects (YSOs). The observed thermal X-ray emission can be accompanied by both thermal and nonthermal radio emission. Due to variability, simultaneous X-ray and radio observations are a priori required, but results have been inconclusive. Aims: We use archival X-ray and radio observations of the Orion Nebula Cluster (ONC) to significantly enlarge the sample size of known YSOs with both X-ray and radio detections. Methods: We study the ONC using multi-epoch non-simultaneous archival Chandra X-ray and NRAO Very Large Array (VLA) single-band radio data. The multiple epochs allow us to reduce the impact of variability by obtaining approximated quiescent fluxes. Results: We find that only a small fraction of the X-ray sources (7%) have radio counterparts, even if 60% of the radio sources have X-ray counterparts. The radio flux density is typically too low to distinguish thermal and nonthermal radio sources. Only a small fraction of the YSOs with detections in both bands are compatible with the empirical "Guedel-Benz" (GB) relation. Most of the sources not compatible with the GB relation are proplyds, and thus likely thermal sources, but only a fraction of the proplyds is detected in both bands, such that the role of these sources is inconclusive. Conclusions: While the radio sources appear to be globally unrelated to the X-ray sources, the X-ray dataset clearly is much more sensitive than the radio data. We find tentative evidence that known non-thermal radio sources and saturated X-ray sources are indeed close to the empirical relation, even if skewed to higher radio luminosities, as they are expected to be. Most of the sources that are clearly incompatible with the empirical relation are proplyds which could instead plausibly be thermal radio sources.
description: Accepted for publication in A&A
Presentation of GBIF and BioDT for the UN FAO Plant Treaty (ITPGRFA) Scientific Advisory Committee (SAC) in Rome in May 2023
Creators: name: Endresen, Dag
name: Miller, Joseph
Publisher: name: Zenodo
Year: 2023
Subjects: GBIF
biodiversity informatics
BioDT
Biodiversity Digital Twin
digital twin
CWR
crop wild relative

description: GBIF Norway and the GBIF Secretariat were invited as speakers at the Plant Treaty (ITPGRFA) fifth meeting of the Scientific Advisory Committee (SAC) of the Global Information System (GLIS) in Rome from 8th to 9th May 2023. Presentation on services that GBIF and BioDT can provide for the plant genetic resources community and the UN FAO Plant Treaty.
Pseudotatia Mees 1974
Creators: name: Calegari, Bárbara B.
name: Vari, Richard P.
name: Reis, Roberto E.
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Siluriformes
Auchenipteridae
Pseudotatia

description: GENUS PSEUDOTATIA MEES, 1974
Pseudotatia Mees, 1974: 105 (type species: Pseudotatia parva Mees, 1974; type by original designation. Gender feminine).
description: Published as part of Calegari, Bárbara B., Vari, Richard P. & Reis, Roberto E., 2019, Phylogenetic systematics of the driftwood catfishes (Siluriformes: Auchenipteridae): a combined morphological and molecular analysis, pp. 661-773 in Zoological Journal of the Linnean Society 187 on page 737
Synthetic studies of cystobactamids as antibiotics and bacterial imaging carriers lead to compounds with high in vivo efficacy
Creators: name: Testolin, Giambattista
name: Cirnski, Katarina
name: Rox, Katharina
name: Prochnow, Hans
name: Fetz, Verena
name: Grandclaudon, Charlotte
name: Mollner, Tim
name: Baiyoumy, Alain
name: Ritter, Antje
name: Leitner, Christian
name: Krull, Jana
name: Van Den Heuvel, Joop
name: Vassort, Aurelie
name: Sordello, Sylvie
name: Hamed, Mostafa M.
name: Elgaher, Walid A. M.
name: Herrmann, Jennifer
name: Hartmann, Rolf W.
name: Müller, Rolf
name: Brönstrup, Mark
Publisher: name: Cambridge : Royal Society of Chemistry (RSC)
Year: 2020
Subjects: subject: constituent amino-acid
subject: DANN minor-groove
subject: absolute-configuration
subject: albicin derivates
subject: marfeys method
subject: aminoglyside
subject: recorgnition
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: There is an alarming scarcity of novel chemical matter with bioactivity against multidrug-resistant Gram-negative bacterial pathogens. Cystobactamids, recently discovered natural products from myxobacteria, are an exception to this trend. Their unusual chemical structure, composed of oligomeric para-aminobenzoic acid moieties, is associated with a high antibiotic activity through the inhibition of gyrase. In this study, structural determinants of cystobactamid's antibacterial potency were defined at five positions, which were varied using three different synthetic routes to the cystobactamid scaffold. The potency against Acinetobacter baumannii could be increased ten-fold to an MIC (minimum inhibitory concentration) of 0.06 µg mL-1, and the previously identified spectrum gap of Klebsiella pneumoniae could be closed compared to the natural products (MIC of 0.5 µg mL-1). Proteolytic degradation of cystobactamids by the resistance factor AlbD was prevented by an amide-triazole replacement. Conjugation of cystobactamid's N-terminal tetrapeptide to a Bodipy moiety induced the selective localization of the fluorophore for bacterial imaging purposes. Finally, a first in vivo proof of concept was obtained in an E. coli infection mouse model, where derivative 22 led to the reduction of bacterial loads (cfu, colony-forming units) in muscle, lung and kidneys by five orders of magnitude compared to vehicle-treated mice. These findings qualify cystobactamids as highly promising lead structures against infections caused by Gram-positive and Gram-negative bacterial pathogens. This journal is © The Royal Society of Chemistry.
Types and forgetfulness in categorical linguistics and quantum mechanics
Creators: name: Hines, Peter
Publisher: name: arXiv
Year: 2013
Subjects: subject: Computation and Language (cs.CL)
subject: Category Theory (math.CT)
subject: Quantum Physics (quant-ph)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: The role of types in categorical models of meaning is investigated. A general scheme for how typed models of meaning may be used to compare sentences, regardless of their grammatical structure is described, and a toy example is used as an illustration. Taking as a starting point the question of whether the evaluation of such a type system 'loses information', we consider the parametrized typing associated with connectives from this viewpoint. The answer to this question implies that, within full categorical models of meaning, the objects associated with types must exhibit a simple but subtle categorical property known as self-similarity. We investigate the category theory behind this, with explicit reference to typed systems, and their monoidal closed structure. We then demonstrate close connections between such self-similar structures and dagger Frobenius algebras. In particular, we demonstrate that the categorical structures implied by the polymorphically typed connectives give rise to a (lax unitless) form of the special forms of Frobenius algebras known as classical structures, used heavily in abstract categorical approaches to quantum mechanics.
description: 37 pages, 4 figures
Can Planners Raise Concern BEFORE The Flood?
Creators: name: Furuseth, Owen J.
name: Ives, Sallie M.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1983

description: To the national news media and many decision-makers, flooding events are catastrophic disasters, characterized by basin-wide flooding, the evacuation of people, and massive property losses. The planner working in urban areas, however, faces a more subtle but equally serious flood hazard, the non-catastrophic urban flood. The United States Water Resources Council has estimated that overflowing rivers and streams and related drainage problems cause significant damage and disruption in almost 3800 cities, with annual losses exceeding $2 billion. They also forecast that annual public and private flood losses will escalate to $5 billion by 1985. Within individual urban centers, increased flood hazards can be related to the widespread urbanization of flood-prone areas and the increasingly impermeable landscape created by highways, roofs, and parking lots. In many cities the results are more localized flooding, particularly in headwater settings. Older neighborhoods which previously suffered only occasionally from overflowing streams find themselves facing increasingly frequent and severe flooding events. Once treated as a nuisance, the flood becomes a threat. For persons living in these areas it is a frustrating experience leading to greater expense for protecting one's property. Moreover, decreasing property values may make it difficult to leave the neighborhood without financial loss. If planners are expected to mitigate the losses associated with localized urban flooding, it is critical that we understand public reaction and perception of the problem. Without insight into public response and adjustment to these events, it is impossible to develop technically sound and socially acceptable remedial measures
Sensitivity and performance of the Advanced LIGO detectors in the third observing run
Creators: name: Buikema, A.
name: Cahillane, C.
name: Mansell, G.L.
name: Blair, C.D.
name: Abbott, R.
name: Adams, C.
name: Adhikari, R.X.
name: Ananyeva, A.
name: Appert, S.
name: Bode, N.
name: Booker, P.
name: Liu, J.
name: Meylahn, F.
name: Willke, B.
name: Et Al.
Publisher: name: College Park, MD : American Physical Society
Year: 2020
Subjects: subject: Condensed matter
subject: Nuclear physics
subject: Particles (Nuclear physics)
subject: Quantum gravity
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: On April 1st, 2019, the Advanced Laser Interferometer Gravitational-Wave Observatory (aLIGO), joined by the Advanced Virgo detector, began the third observing run, a year-long dedicated search for gravitational radiation. The LIGO detectors have achieved a higher duty cycle and greater sensitivity to gravitational waves than ever before, with LIGO Hanford achieving angle-averaged sensitivity to binary neutron star coalescences to a distance of 111 Mpc, and LIGO Livingston to 134 Mpc with duty factors of 74.6% and 77.0% respectively. The improvement in sensitivity and stability is a result of several upgrades to the detectors, including doubled intracavity power, the addition of an in-vacuum optical parametric oscillator for squeezed-light injection, replacement of core optics and end reaction masses, and installation of acoustic mode dampers. This paper explores the purposes behind these upgrades, and explains to the best of our knowledge the noise currently limiting the sensitivity of each detector. © 2020 authors. Published by the American Physical Society.
Endocytosis of nanomedicines
Creators: name: Kabanov, Alexander V.
name: Sahay, Gaurav
name: Alakhova, Daria Y.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2010

description: Novel nanomaterials are being developed to improve diagnosis and therapy of diseases through effective delivery of drugs, biopharmaceutical molecules and imaging agents to target cells in disease sites. Such diagnostic and therapeutic nanomaterials, also termed “nanomedicines”, often require site-specific cellular entry to deliver their payload to sub-cellular locations hidden beneath cell membranes. Nanomedicines can employ multiple pathways for cellular entry, which are currently insufficiently understood. This review, first, classifies various mechanisms of endocytosis available to nanomedicines including phagocytosis and pinocytosis through clathrin-dependent and clathrin-independent pathways. Second, it describes the current experimental tools to study endocytosis of nanomedicines. Third, it provides specific examples from recent literature and our own work on endocytosis of nanomedicines. Finally, these examples are used to ascertain 1) the role of particle size, shape, material composition, surface chemistry and/or charge for utilization of a selected pathway(s); 2) the effect of cell type on the processing of nanomedicines; and 3) the effect of nanomaterial-cell interactions on the processes of endocytosis, the fate of the nanomedicines and the resulting cellular responses. This review will be useful to a diverse audience of students and scientists who are interested in understanding endocytosis of nanomedicines.
Adaptation of eye and hand movements to target displacements of different size
Creators: name: Schmitz, Gerd
name: Bock, Otmar
name: Grigorova, Valentina
name: Ilieva, Milena
Publisher: name: Heidelberg : Springer
Year: 2010
Subjects: subject: Saccades
subject: Arm movements
subject: Motor learning
subject: Adaptation
subject: Double step
subject: Dewey Decimal Classification::700 | Künste, Bildende Kunst allgemein::790 | Freizeitgestaltung, Darstellende Kunst

description: Previous work has documented that the direction of eye and hand movements can be adaptively modified using the double-step paradigm. Here we report that both motor systems adapt not only to small direction steps (5A degrees gaze angle) but also to large ones (28A degrees gaze angle). However, the magnitude of adaptation did not increase with step size, and the relative magnitude of adaptation therefore decreased from 67% with small steps to 15% with large steps. This decreasing efficiency of adaptation may reflect the participation of directionally selective neural circuits in double-step adaptation.
Matter and Ricci collineations
Creators: name: Llosa, Josep
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 83C99, 53A45, 53D05, 58A10, 58A17

description: The infinitesimal transformations that leave invariant a two-covariant symmetric tensor are studied. The interest of these symmetry transformations lays in the fact that this class of tensors includes the energy-momentum and Ricci tensors. We find that in most cases the class of infinitesimal generators of these transformations is a finite dimensional Lie algebra but also, in some cases exhibiting a higher degree of degeneracy, this class is infinite dimensional and may fail to be a Lie algebra.
3D imaging of biofilms on implants by detection of scattered light with a scanning laser optical tomograph
Creators: name: Heidrich, Marko
name: Kühnel, Mark P.
name: Kellner, Manuela
name: Lorbeer, Raoul-Amadeus
name: Lange, Tineke
name: Winkel, Andreas
name: Stiesch, Meike
name: Meyer, Heiko
name: Heisterkamp, Alexander
Publisher: name: Washington, DC : Optical Society of America
Year: 2011
Subjects: subject: Bacteria
subject: Chlorine compounds
subject: Dental prostheses
subject: Fluorescence
subject: Imaging systems
subject: Optical tomography
subject: Three dimensional
subject: Three dimensional computer graphics
subject: Visualization
subject: 3D imaging
subject: 3D imaging techniques
subject: Application of laser
subject: Bacterial cells
subject: Bacterial growth
subject: Biofilm formation
subject: Biofilm structure
subject: Implant surface
subject: Implantology
subject: In-vitro
subject: Large-scale visualization
subject: Microscopic properties
subject: Optical tomograph
subject: Scanning lasers
subject: Scattered laser light
subject: Triphenyltetrazolium chlorides
subject: Vital staining
subject: Biofilms
subject: Bacteria (microorganisms)
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik
subject: Dewey Decimal Classification::600 | Technik::610 | Medizin, Gesundheit

description: Biofilms - communities of microorganisms attached to surfaces - are a constant threat for long-term success in modern implantology. The application of laser scanning microscopy (LSM) has increased the knowledge about microscopic properties of biofilms, whereas a 3D imaging technique for the large scale visualization of bacterial growth and migration on curved and non-transparent surfaces is not realized so far. Towards this goal, we built a scanning laser optical tomography (SLOT) setup detecting scattered laser light to image biofilm on dental implant surfaces. SLOT enables the visualization of living biofilms in 3D by detecting the wavelength-dependent absorption of non-fluorescent stains like e.g. reduced triphenyltetrazolium chloride (TTC) accumulated within metabolically active bacterial cells. Thus, the presented system allows the large scale investigation of vital biofilm structure and in vitro development on cylindrical and non-transparent objects without the need for fluorescent vital staining. We suggest SLOT to be a valuable tool for the structural and volumetric investigation of biofilm formation on implants with sizes up to several millimeters.
Vernacular Architecture and the Preservation of Local Cultural Identity
Creators: name: Larson, John C.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1989

description: One indication of the evolution of the preservation movement is the increased attention paid to gas stations, bungalows and humble farm houses, often termed "vernacular" resources. To those more accustomed to the idea of preserving sites linked to great American heros and events, this shift may seem bewildering. Here, Larson describes the forces which have broadened the field's focus and presents a framework with which communities can understand and work with the resources that strengthen their individual cultural identity.
Crop wild relatives Digital Twin: where data flow meets computation to revolutionize agricultural research
Creators: name: Chala, Desalegn
Publisher: name: Zenodo
Year: 2023
Subjects: BioDT
CWR
Digital Twin
Research Infrastructure
Grasspea
Lathyrus sativum
Crop wild relatives

description: While the human population is rapidly increasing and expected to reach 11 billion by the end of this century, global agricultural production is challenged due to climate change. To meet the UN Sustainable Development Goal targets and to bring about zero hunger, we need to boost our food production. For this, we need crops with higher yields, nutritional values, and the ability to resist diseases and adapt to changing environments. Untapped genetic resources to meet these goals are often harbored in crop wild relatives. Digital twinning represents a promising technology for the model-based identification and use of these resources by facilitating: 1) data flow and fusion from distributed data sources), 2) dynamic model updating, 3) automated model uncertainty analysis (validation against real-life data), and 4) provision of automated alerts for new genetic resources with predicted target genetic properties for plant breeders, conservation scientists and policymakers. Here, we showcase the importance of data flow to develop a digital twin that facilitates improving the nutritional quality of grasspea but can be transferable across traits and crops. Grasspea is a climate-smart crop that requires only residual moisture to complete its life cycle and is considered a lifesaver during severe droughts in tropical and subtropical regions. While it is protein-rich and could potentially help in beating protein malnutrition in the future, it also contains a neurotoxin that can cause paralysis of the lower limbs in adults and brain damage in children, if consumed over longer periods. Specific goals of our work include modelling geographic areas that present populations of grasspea wild relatives and land races with potential alleles to lower the toxicity content of grasspea to a non-harmful level.
description: Presentation of the BioDIversity Digital Twin (BioDT) Crop Wild Relative (CWR) digital twin at the Living Norway Colloquium in Trondheim May 2023
A New Homogeneity Inter-Clusters Measure in SemiSupervised Clustering
Creators: name: Meftahi, Badreddine
name: Saidi, Ourida Ben Boubaker
Publisher: name: arXiv
Year: 2013
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences
subject: H.2.8; H.3.3; I.2; I.5.3
subject: 62H30, 91C20, 68P15, 68T05

description: Many studies in data mining have proposed a new learning called semi-Supervised. Such type of learning combines unlabeled and labeled data which are hard to obtain. However, in unsupervised methods, the only unlabeled data are used. The problem of significance and the effectiveness of semi-supervised clustering results is becoming of main importance. This paper pursues the thesis that muchgreater accuracy can be achieved in such clustering by improving the similarity computing. Hence, we introduce a new approach of semisupervised clustering using an innovative new homogeneity measure of generated clusters. Our experimental results demonstrate significantly improved accuracy as a result.
description: 9 pages, 27 figures, International Journal of Computer Applications see http://www.ijcaonline.org/
Measurement of head-related transfer functions : A review
Creators: name: Li, Song
name: Peissig, Jürgen
Publisher: name: Basel : Molecular Diversity Preservation International (MDPI)
Year: 2020
Subjects: subject: head-related impulse response
subject: head-related transfer function
subject: HRTF measurement system
subject: individual HRTF measurement
subject: Dewey Decimal Classification::000 | Allgemeines, Wissenschaft::000 | Informatik, Wissen, Systeme::004 | Informatik

description: A head-related transfer function (HRTF) describes an acoustic transfer function between a point sound source in the free-field and a defined position in the listener's ear canal, and plays an essential role in creating immersive virtual acoustic environments (VAEs) reproduced over headphones or loudspeakers. HRTFs are highly individual, and depend on directions and distances (near-field HRTFs). However, the measurement of high-density HRTF datasets is usually time-consuming, especially for human subjects. Over the years, various novel measurement setups and methods have been proposed for the fast acquisition of individual HRTFs while maintaining high measurement accuracy. This review paper provides an overview of various HRTF measurement systems and some insights into trends in individual HRTF measurements.
Presentation of the Biodiversity Digital Twin (BioDT) for the GBIF Europe and Central Asia regional nodes meeting (ECA) in Warsaw May 2023
Creators: name: Endresen, Dag
name: Kusch, Erik
Publisher: name: Zenodo
Year: 2023
Subjects: BioDT
GBIF
GBIF ECA
Biodiversity informatics
Digital Twin
Research Infrastructure
Biodiversity Research Infrastructure

description: The BioDT Task 4.3.1 kick-off meeting was organised as a side-event to the GBIF regional nodes meeting for Europe and Central Asia. BioDT partners were invited as observers to the regional GBIF nodes meeting and presented BioDT results and products for dissemination to end-users by the GBIF nodes. Selected GBIF nodes presented national biodiversity research infrastructure governance and collaboration models. The kick-off meeting resolved the BioDT milestone MS7 - First BioDT R&I nodes coordination workshop has been organized (M12 = May 2023) and MS22 - First RI nodes coordination workshop carried out (M12 = May 2023). It will also contribute to milestone MS23 - Guidelines on collaboration principles for RI nodes published online (M16 = September 2023).
Confucian and Taoist intervention effects on Self-construal and Thinking Mode - Method and Marterials
Creators: name: Wang, Zhen-Dong
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Psychology
subject: FOS: Psychology
subject: Education
subject: Multicultural Psychology
subject: Social and Behavioral Sciences

description: It contains the measures used in the pre-test and post-test for self-construal and thinking styles, the text materials used in the educational intervention for the experimental groups, and the methods used in the data analysis, for the study of the "Confucian and Taoist intervention effects on Self-construal and Thinking Mode".
Comprehensive molecular characterization of clear cell renal cell carcinoma
Creators: name: Perou, Charles
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2013

description: Genetic changes underlying clear cell renal cell carcinoma (ccRCC) include alterations in genes controlling cellular oxygen sensing (for example, VHL) and the maintenance of chromatin states (for example, PBRM1). We surveyed more than 400 tumours using different genomic platforms and identified 19 significantly mutated genes. The PI(3)K/AKT pathway was recurrently mutated, suggesting this pathway as a potential therapeutic target. Widespread DNA hypomethylation was associated with mutation of the H3K36 methyltransferase SETD2, and integrative analysis suggested that mutations involving the SWI/SNF chromatin remodelling complex (PBRM1, ARID1A, SMARCA4) could have far-reaching effects on other pathways. Aggressive cancers demonstrated evidence of a metabolic shift, involving downregulation of genes involved in the TCA cycle, decreased AMPK and PTEN protein levels, upregulation of the pentose phosphate pathway and the glutamine transporter genes, increased acetyl-CoA carboxylase protein, and altered promoter methylation of miR-21 (also known as MIR21) and GRB10. Remodelling cellular metabolism thus constitutes a recurrent pattern in ccRCC that correlates with tumour stage and severity and offers new views on the opportunities for disease treatment.
Optimized structure and vibrational properties by error affected potential energy surfaces
Creators: name: Zen, Andrea
name: Zhelyazov, Delyan
name: Guidoni, Leonardo
Publisher: name: arXiv
Year: 2013
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Chemical Physics (physics.chem-ph)
subject: Computational Physics (physics.comp-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The precise theoretical determination of the geometrical parameters of molecules at the minima of their potential energy surface and of the corresponding vibrational properties are of fundamental importance for the interpretation of vibrational spectroscopy experiments. Quantum Monte Carlo techniques are correlated electronic structure methods promising for large molecules, which are intrinsically affected by stochastic errors on both energy and force calculations, making the mentioned calculations more challenging with respect to other more traditional quantum chemistry tools. To circumvent this drawback in the present work we formulate the general problem of evaluating the molecular equilibrium structures, the harmonic frequencies and the anharmonic coefficients of an error affected potential energy surface. The proposed approach, based on a multidimensional fitting procedure, is illustrated together with a critical evaluation of systematic and statistical errors. We observe that the use of forces instead of energies in the fitting procedure reduces the the statistical uncertainty of the vibrational parameters by one order of magnitude. Preliminary results based on Variational Monte Carlo calculations on the water molecule demonstrate the possibility to evaluate geometrical parameters, harmonic and anharmonic coefficients at this level of theory with an affordable computational cost and a small stochastic uncertainty (<0.07% for geometries and <0.7% for vibrational properties).
description: Reprinted (adapted) with permission from J. Chem. Theory Comput., 2012, 8 (11), pp 4204--4215, DOI:10.1021/ct300576n. Copyright (2012) American Chemical Society
Entwicklung von Methoden zur diastereoselektiven Funktionalisierung der Cinchona Alkaloide und Synthese neuartiger funktionalisierter Chinuclidine
Creators: name: Frackenpohl, Jens
Publisher: name: Hannover : Universität Hannover
Year: 2000
Subjects: subject: Cinchona alkaloids
subject: quinuclidines
subject: 1-azabicyclo[3.2.2]nonanes
subject: asymmetric catalysis
subject: quincorine
subject: quincoridine
subject: Alkaloide
subject: Asymmetrische Reaktion
subject: Chinarindenbaum
subject: Chinuclidinderivate
subject: Funktionalisierung
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: [no abstract]
Disturbing impact of multiple wind turbines on the indicated DVOR bearing
Creators: name: Sandmann, Sergei
name: Garbe, Heyno
Publisher: name: Göttingen : Copernicus
Year: 2019
Subjects: subject: Electric utilities
subject: Electromagnetic waves
subject: Omnidirectional antennas
subject: Wave propagation
subject: Wind power
subject: Wind turbines
subject: Antenna characteristics
subject: Large buildings
subject: Navigation aids
subject: Navigation service
subject: Omni-directional radios
subject: Operation range
subject: Scattering objects
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: Radio navigation aids, like the Doppler Very High Frequency Omnidirectional Radio Range (DVOR), provide their navigation service by specific radiation of electromagnetic waves depending on the direction in space and according to their specific antenna characteristics. Therefore, these navigation aids are reliant on undisturbed wave propagation in their operation range. Certainly, a propagation disturbance can be implicated by the presence of scattering objects like large buildings or wind turbines (WT) in the surrounding area of the DVOR, which potentially leads to deviations of the transmitted navigation content. In order to comply with the specified flight safety limits, especially respecting WTs, there is a necessity to predict the prospective bearing error due to installations not only of individual WTs but also of additional ones in a present wind farm or repowering projects. Accordingly, this paper is aimed at ascertaining the bearing deviations' dependency on the quantity of WTs in a realistic wind farm close to a DVOR, calculated in space areas of practical relevance.
Planning and Local Government Law Update
Creators: name: Maupin, Taylor, Ellis & Adams, P.A.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1996

description: Editor's note: This article is compiled from material published by Maupin. Taylor, Ellis & Adams, P.A. Includes: Court Finds No Review Possible on Denial of Special Use Permit; First Town in the U.S. Sued by the Justice Department for Antitrust Violations; Statutes Protecting a Developer's Opportunity to Develop Property; Court Upholds a Town's Right to Provide Water Service in Competition with a Private Company; County Held Responsible for the Taking of a Driveway Easement; Court Finds That City Satisfies the "Public Benefit" Test.
On the performance of optical phased array technology for beam steering : effect of pixel limitations
Creators: name: Cala’Lesina, Antonio
name: Goodwill, Dominic
name: Bernier, Eric
name: Ramunno, Lora
name: Berini, Pierre
Publisher: name: Washington, DC : OSA - The Optical Society
Year: 2020
Subjects: subject: Optical engineering
subject: Optical radar
subject: Compensation strategy
subject: Constant amplitude
subject: Lidar applications
subject: Optical phased array technology
subject: Optical phased arrays
subject: Optical technology
subject: Orders of magnitude
subject: Phase gradient
subject: Pixels
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: Optical phased arrays are of strong interest for beam steering in telecom and LIDAR applications. A phased array ideally requires that the field produced by each element in the array (a pixel) is fully controllable in phase and amplitude (ideally constant). This is needed to realize a phase gradient along a direction in the array, and thus beam steering in that direction. In practice, grating lobes appear if the pixel size is not sub-wavelength, which is an issue for many optical technologies. Furthermore, the phase performance of an optical pixel may not span the required 2π phase range or may not produce a constant amplitude over its phase range. These limitations result in imperfections in the phase gradient, which in turn introduce undesirable secondary lobes. We discuss the effects of non-ideal pixels on beam formation, in a general and technology-agnostic manner. By examining the strength of secondary lobes with respect to the main lobe, we quantify beam steering quality and make recommendations on the pixel performance required for beam steering within prescribed specifications. By applying appropriate compensation strategies, we show that it is possible to realize high-quality beam steering even when the pixel performance is non-ideal, with intensity of the secondary lobes two orders of magnitude smaller than the main lobe. © 2020 OSA - The Optical Society. All rights reserved.
A new generalization of binomial coefficients
Creators: name: Lassalle, Michel
Publisher: name: arXiv
Year: 2013
Subjects: subject: Combinatorics (math.CO)
subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics

description: Let $t$ be a fixed parameter and $x$ some indeterminate. We give some properties of the generalized binomial coefficients $\genfrac{}{0pt}{}{x}{k}$ inductively defined by $k/x \genfrac{}{0pt}{}{x}{k}= t\genfrac{}{0pt}{}{x-1}{k-1} +(1-t)\genfrac{}{0pt}{}{x-2}{k-2}$.
description: 13 pages, LaTeX, to appear in Ramanujan Journal
The Unary Fragments of Metric Interval Temporal Logic: Bounded versus Lower bound Constraints (Full Version)
Creators: name: Pandya, Paritosh K.
name: Shah, Simoni S.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Logic in Computer Science (cs.LO)
subject: Formal Languages and Automata Theory (cs.FL)
subject: FOS: Computer and information sciences

description: We study two unary fragments of the well-known metric interval temporal logic MITL[U_I,S_I] that was originally proposed by Alur and Henzinger, and we pin down their expressiveness as well as satisfaction complexities. We show that MITL[F_\inf,P_\inf] which has unary modalities with only lower-bound constraints is (surprisingly) expressively complete for Partially Ordered 2-Way Deterministic Timed Automata (po2DTA) and the reduction from logic to automaton gives us its NP-complete satisfiability. We also show that the fragment MITL[F_b,P_b] having unary modalities with only bounded intervals has \nexptime-complete satisfiability. But strangely, MITL[F_b,P_b] is strictly less expressive than MITL[F_\inf,P_\inf]. We provide a comprehensive picture of the decidability and expressiveness of various unary fragments of MITL.
description: Presented at ATVA, 2012
(Re)describing Foucault: With Rorty, against Rorty [(Re)descrevendo Foucault: Com Rorty, contra Rorty]
Creators: name: De Almeida, Felipe Quintao
name: Vaz, Alexandre Fernandez
Publisher: name: Sao Paulo : Universidade Estadual Paulista
Year: 2011
Subjects: subject: Foucault
subject: Philosophy
subject: FOS: Philosophy, ethics and religion
subject: Politics
subject: Rorty
subject: Dewey Decimal Classification::100 | Philosophie

description: This paper aims to put in dialog the French Philosopher Michel Foucault and the North-American Philosopher Richard Rorty. It presents Rorty's lecture of Foucault's work and analyses this interpretation. After that, the paper offers an alternative interpretation of Foucault's work, suggesting that Rorty was quite imprecise in his interpretation A final commentary about this conversation.
Decoherence and maximal violations of the Leggett-Garg inequality
Creators: name: Emary, Clive
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We consider maximal violations of the Leggett-Garg inequality, obtained by maximising over all possible measurement operators, in relation to non-unitary aspects of the system dynamics. We model the action of an environment on a qubit in terms of generic quantum channels and relate the maximal value of the Leggett-Garg correlator to the channel parameters. We focus on unital channels, and hence on decoherence. In certain important cases, exact relations between the channel parameters and maximal violations can be found. Moreover, we demonstrate the existence of distinct thresholds for the channel parameters, below which no violation of the Leggett-Garg inequality can occur.
description: 7 pages; 3 figures
In The Works: Greenville, SC; Greensboro, NC; Washington, NC; Carrboro, NC; Atlanta, GA
Creators: name: Kitchen, Claudia
name: Perry, Charles
name: Bradley, Panky
name: Davis, Marvin
name: Chambliss, Bill
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1981

description: Short planning reports from: GREENVILLE, SC: In Greenville, South Carolina the County Planning Commission has developed a creative strategy for controlling future development of a mountain area.; GREENSBORO, NC: The Greensboro, North Carolina Community Development program is realizing some success in a joint historic preservation/neighborhood improvement project in the "College Hill" neighborhood, an area populated largely by students and senior citizens.; WASHINGTON, NC: Washington, North Carolina is a National Main Street Center City, Selected in a national competition conducted by the National Trust for Historic Preservation.; CARRBORO, NC: Zones float in Carrboro, North Carolina. So suggests one part of the Industrial Rezoning Study prepared by Carrboro' s Planning Department last summer. The study proposed an "area of suitability" for industrial development.; ATLANTA, GA: Trends in crime, redevelopment, displacement and many other areas can now be mapped in an attractive and readable form by the Atlanta Planning Department.
Saxifraga granulata L.
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: S. granulata L. Nicht im Wallis. Die Angabe «Branson» bei Engler und Irmscher Lit. 1916, S. 250, muss auf einem Irrtum beruhen (wohl Falschbestimmung eines Beleges der bei Branson vorkommenden S. bulbifera).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
Ion implantation of 226Ra for a primary 222Rn emanation standard
Creators: name: Mertes, Florian
name: Kneip, Nina
name: Heinke, Reinhard
name: Kieck, Tom
name: Studer, Dominik
name: Weber, Felix
name: Röttger, Stefan
name: Röttger, Annette
name: Wendt, Klaus
name: Walther, Clemens
Publisher: name: Amsterdam [u.a.] : Elsevier Science
Year: 2022
Subjects: subject: 222Rn emanation
subject: Defined solid-angle alpha-particle spectrometry
subject: Ion implantation
subject: Laser ionization
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik
subject: Dewey Decimal Classification::600 | Technik::610 | Medizin, Gesundheit
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: Laser resonance ionization at the RISIKO 30 kV mass separator has been used to produce isotopically and isobarically pure and well quantified 222Rn emanation standards. Based upon laser-spectroscopic preparation studies, ion implantation into aluminum and tungsten targets has been carried out, providing overall implantation efficiencies of 40% up to 60%. The absolute implanted activity of 226Ra was determined by the technique of defined solid-angle α-particle spectrometry, where excellent energy resolution was observed. The 222Rn emanation coefficient of the produced targets was studied using α-particle and γ-ray spectrometry, and yielded results between 0.23 and 0.34, with relative uncertainty on the order of 1%. No dependence exceeding a 1% change of the emanation on humidity could be identified in the range of 15 %rH to 75 %rH, whereas there were hints of a slight correlation between the emanation and temperature. Additionally, and as expected, the emanation coefficient was found to be dependent on the target material as well as the implanted dose. © 2021
Interacting quantum mixtures for precision atom interferometry
Creators: name: Corgier, Robin
name: Loriani, Sina
name: Ahlers, Holger
name: Posso-Trujillo, Katerine
name: Schubert, Christian
name: Rasel, Ernst M.
name: Charron, Eric
name: Gaaloul, Naceur
Publisher: name: Bristol : IOP Publishing Ltd.
Year: 2020
Subjects: subject: atom interferometry
subject: Bose-Einstein condensate
subject: equivalence principle
subject: interacting quantum gases
subject: precision tests
subject: quantum mixtures
subject: scaling approach
subject: Atoms
subject: Bose-Einstein condensation
subject: Mixtures
subject: Precision engineering
subject: Wavefronts
subject: Gross-Pitaevskii equation
subject: Non-linear dynamics
subject: Precision atom interferometry
subject: Single species
subject: Source engineering
subject: Species interactions
subject: Systematic effects
subject: Wavefront aberrations
subject: Interferometry
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: We present a source engineering concept for a binary quantum mixture suitable as input for differential, precision atom interferometry with drift times of several seconds. To solve the non-linear dynamics of the mixture, we develop a set of scaling approach equations and verify their validity contrasting it to the one of a system of coupled Gross-Pitaevskii equations. This scaling approach is a generalization of the standard approach commonly used for single species. Its validity range is discussed with respect to intra- and inter-species interaction regimes. We propose a multi-stage, non-linear atomic lens sequence to simultaneously create dual ensembles with ultra-slow kinetic expansion energies, below 15 pK. Our scheme has the advantage of mitigating wave front aberrations, a leading systematic effect in precision atom interferometry. © 2020 The Author(s). Published by IOP Publishing Ltd on behalf of the Institute of Physics and Deutsche Physikalische Gesellschaft.
The high-pressure superconductivity in SiH4: the strong-coupling approach
Creators: name: Szczesniak, R.
name: Durajski, A. P.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: In the paper, the thermodynamic parameters of the high-pressure superconducting state in the SiH$_4$ compound have been determined ($p=250$ GPa). By using the Eliashberg equations in the mixed representation, the critical temperature, the energy gap, and the electron effective mass have been calculated. It has been stated that the critical temperature ($T_{C}$) decreases from 51.65 K to 20.62 K, if the Coulomb pseudopotential increases ($μ^{\star}\in 0.1,0.3$). The dimensionless ratio $2Δ\(0\)/k_{B}T_{C}$ decreases from 4.10 to 3.84, where the symbol $Δ\(0\)$ denotes the value of the order parameter close to the zero temperature. The ratio of the electron effective mass to the band electron mass is high, and it reaches maximum equal to 1.95 for the critical temperature.
description: 5 pages, 5 figures
Femtosecond Optoinjection of Intact Tobacco BY-2 Cells Using a Reconfigurable Photoporation Platform
Creators: name: Mitchell, Claire A.
name: Kalies, Stefan
name: Cizmar, Tomas
name: Heisterkamp, Alexander
name: Torrance, Lesley
name: Roberts, Alison G.
name: Gunn-Moore, Frank J.
name: Dholakia, Kishan
Publisher: name: San Francisco, CA : Public Library of Science
Year: 2013
Subjects: subject: plant-cells
subject: optical transfection
subject: mammalian-cells
subject: laser-pulses
subject: gene-transfer
subject: delivery
subject: single
subject: proteins
subject: microinjection
subject: expression
subject: Dewey Decimal Classification::500 | Naturwissenschaften
subject: Dewey Decimal Classification::600 | Technik::610 | Medizin, Gesundheit

description: A tightly-focused ultrashort pulsed laser beam incident upon a cell membrane has previously been shown to transiently increase cell membrane permeability while maintaining the viability of the cell, a technique known as photoporation. This permeability can be used to aid the passage of membrane-impermeable biologically-relevant substances such as dyes, proteins and nucleic acids into the cell. Ultrashort-pulsed lasers have proven to be indispensable for photoporating mammalian cells but they have rarely been applied to plant cells due to their larger sizes and rigid and thick cell walls, which significantly hinders the intracellular delivery of exogenous substances. Here we demonstrate and quantify femtosecond optical injection of membrane impermeable dyes into intact BY-2 tobacco plant cells growing in culture, investigating both optical and biological parameters. Specifically, we show that the long axial extent of a propagation invariant ("diffraction-free") Bessel beam, which relaxes the requirements for tight focusing on the cell membrane, outperforms a standard Gaussian photoporation beam, achieving up to 70% optoinjection efficiency. Studies on the osmotic effects of culture media show that a hypertonic extracellular medium was found to be necessary to reduce turgor pressure and facilitate molecular entry into the cells.
Indium joints for cryogenic gravitational wave detectors
Creators: name: Hofmann, G.
name: Chen, D.
name: Bergmann, Gerald
name: Hammond, G.D.
name: Hanke, Manuela
name: Haughian, K.
name: Heinert, Daniel
name: Hough, J.
name: Khalaidovski, Alexander
name: Komma, J.
name: Lück, Harald
name: Majorana, E.
name: Reid, M.M.
name: Murray, P.G.
name: Naticchioni, L.
name: Nawrodt, Ronny
name: Reid, S.
name: Rowan, S.
name: Schmidl, F.
name: Schwarz, C.
name: Seidel, P.
name: Suzuki, T.
name: Tomaru, T.
name: Vine, D.
name: Yamamoto, K.
Publisher: name: London : Institute of Physics Publishing
Year: 2015
Subjects: subject: cryogenic
subject: gravitational wave detector
subject: gravitational waves
subject: indium
subject: KAGRA
subject: sapphire
subject: Gravitationswelle
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: A viable technique for the preparation of highly thermal conductive joints between sapphire components in gravitational wave detectors is presented. The mechanical loss of such a joint was determined to be as low as 2 10-3 at 20 K and 2 10-2 at 300 K. The thermal noise performance of a typical joint is compared to the requirements of the Japanese gravitational wave detector, KAGRA. It is shown that using such an indium joint in the suspension system allows it to operate with low thermal noise. Additionally, results on the maximum amount of heat which can be extracted via indium joints are presented. It is found that sapphire parts, joined by means of indium, are able to remove the residual heat load in the mirrors of KAGRA.
On the Bias in Flexible Functional Forms and an Essentially Unbiased Form: The Fourier Flexible Form
Creators: name: Gallant, A. Ronald
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1981

description: The Fourier flexible form and its derived expenditure system are introduced. Subject to smoothness conditions on the consumer's true indirect utility function, the consumer's true expenditure system must be of the Fourier form over the region of interest in an empirical investigation. Arbitrarily accurate finite parameter approximations of the consumer's true expenditure system are obtained by dropping all high-order terms of the Fourier expenditure system past an appropriate truncation point. The resulting finite parametersystem is tractable in empirical studies. The reader who is primarily interested in applications need only read the second and fifth sections. The remainder of the article is concerned with the verification of these claims and an investigation of some aspects of the bias in Translog specifications.