cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Parameterised Enumeration for Modification Problems
Creators: name: Creignou, Nadia
name: Ktari, Raïda
name: Müller, Julian-Steffen
name: Olive, Frédéric
name: Vollmer, Heribert
Publisher: name: Basel : MDPI
Year: 2019
Subjects: subject: parameterised complexity
subject: enumeration
subject: bounded search tree
subject: parameterised enumeration
subject: ordering
subject: Dewey Decimal Classification::500 | Naturwissenschaften::510 | Mathematik

description: Recently, Creignou et al. (Theory Comput. Syst. 2017), introduced the class DelayFPT into parameterised complexity theory in order to capture the notion of efficiently solvable parameterised enumeration problems. In this paper, we propose a framework for parameterised ordered enumeration and will show how to obtain enumeration algorithms running with an FPT delay in the context of general modification problems. We study these problems considering two different orders of solutions, namely, lexicographic order and order by size. Furthermore, we present two generic algorithmic strategies. The first one is based on the well-known principle of self-reducibility and is used in the context of lexicographic order. The second one shows that the existence of a neighbourhood structure among the solutions implies the existence of an algorithm running with FPT delay which outputs all solutions ordered non-decreasingly by their size.
Growth Performance of Gumz, Rutana and Gumz-Rutana Crossbred Sheep under On-Farm conditions in Northwestern Lowlands of Amhara Region, Ethiopia
Creators: name: Dagnew, Yohannes
name: Urge, Mengistu
name: Tadesse, Yosef
name: Gizaw, Solomon
Publisher: name: East African Journal of Veterinary and Animal Sciences
Year: 2018

description: The objective of this study was to evaluate growth performance of indigenous Gumz, exotic Rutana sheep, and their crosses under on-farm conditions as a step towards designing Gumz sheep conservation and improvement strategies in the north western lowlands of Amhara Region, Ethiopia. Data from a total of 180 Gumz, Rutana, and their crosses were collected between 2014 and 2016. The mean birth weights of the Rutana, Gumz and their crosses were 3.75±0.07, 2.86±0.06 and 3.38±0.07 kg, respectively. Sex was an important source of variation in which male lambs were superior over their female contemporaries. Single-born lambs were heavier (p<0.001) compared to their twins contemporaries. Rutana lambs had significantly highest (118.05±2.67 g) daily weight gain whereas Gumz lambs had lower (100.21±2.48 g). The daily weight gain of the crosses was 107.78±2.66 g. Single-born lambs grew faster than their multiple twin contemporaries between birth to weaning (110.84±1.97 vs. 106.52±2.27 g/day, P<0.05) at three months of age. The Rutana lambs also gained more (59.01±3.44 g/day) than the crossbred (52.15±3.36 g/day) and Gumz (46.34±3.29 g/day) lambs from weaning to six months of age. It can be concluded that Rutana inheritance improve pre-weaning and post-weaning growth performance of the indigenous breed of Gumz sheep. However, Gumz breed is a unique genetic resource and the only thin tailed sheep breed in Ethiopia. Therefore, conservation-based breeding program, including improvement of Gumz sheep through selective breeding should be part of the breed improvement program.
description: East African Journal of Veterinary and Animal Sciences, Vol. 2 No. 1 (2018): East African Journal of Veterinary and Animal Sciences
Unified description of dense matter in neutron stars and magnetars
Creators: name: Chamel, N.
name: Pavlov, R. L.
name: Mihailov, L. M.
name: Velchev, Ch. J.
name: Stoyanov, Zh. K.
name: Mutafchieva, Y. D.
name: Ivanovich, M. D.
name: Fantina, A. F.
name: Pearson, J. M.
name: Goriely, S.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We have recently developed a set of equations of state based on the nuclear energy density functional theory providing a unified description of the different regions constituting the interior of neutron stars and magnetars. The nuclear functionals, which were constructed from generalized Skyrme effective nucleon-nucleon interactions, yield not only an excellent fit to essentially all experimental atomic mass data but were also constrained to reproduce the neutron-matter equation of state as obtained from realistic many-body calculations.
description: Proceedings of IAUS 291 "Neutron Stars and Pulsars: Challenges and Opportunities after 80 years", J. van Leeuwen (ed.); 3 pages
Current developments in document delivery in Germany
Creators: name: Brammer, Markus
name: Olf, Jens
Publisher: name: Bingley : Emerald Group Publishing Ltd.
Year: 2014
Subjects: subject: Copyright law
subject: Document delivery
subject: Document supply
subject: Germany
subject: Interlibrary loan
subject: Licensing
subject: TIB
subject: Dewey Decimal Classification::000 | Allgemeines, Wissenschaft::020 | Bibliotheks- und Informationswissenschaft

description: Findings – Licence agreements with publishers or intermediaries such as Rights Reproduction Organizations are now in place to allow delivery of electronic documents on a wide scale. Within this complicated framework of licence agreements, digital rights management (DRM) systems are a challenge for customers and the delivery service. However, it can be noted, that a simple watermark suffices nearly all publishers in agreements covering pay-per-view delivery of generic digital article files, and only 25 per cent require strict DRM for document delivery scanned from the print. At the same time, TIB looks for more customer-friendly DRM systems. Also, TIB is looking for ways to cooperate with partners to raise efficiency gains and to offer a more convenient service to its customers. Finally, TIB experiences that inadequate copyright law still poses a major hindrance for the international exchange of scientific information being part of its collection.Originality/value – The article describes the development of document supply services of the major TIB publications. It also shows the barriers which inadequate copyright law poses to the exchange of scientific information.Purpose – The purpose of the paper is to give an overview about the framework of copyright law and licences as well as the development of German National Library of Science and Technology (TIB) full-text supply services within that framework. The change of German copyright law in 2008 posed a challenge to TIB’s full-text supply services. While TIB can deliver on the basis of a statutory limitation any document to customers within Germany via mail and fax, there are restrictions for electronic delivery.Design/methodology/approach – The article describes the framework of German copyright law and licences for document delivery as well as activities of TIB to continue servicing customers in a best possible way within the existing framework. © Brammer and Olf, 2014.
Known by the company we keep: `Triadic influence' as a proxy for compatibility in social relationships
Creators: name: Ruíz-García, Miguel
name: Ozaita, Juan
name: Pereda, María
name: Alfonso, Antonio
name: Brañas-Garza, Pablo
name: Cuesta, Jose A.
name: Sánchez, Ángel
Publisher: name: arXiv
Year: 2022
Subjects: subject: Social and Information Networks (cs.SI)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences
subject: J.4
subject: 91D30

description: Networks of social interactions are the substrate upon which civilizations are built. Often, we create new bonds with people that we like or feel that our relationships are damaged through the intervention of third parties. Despite their importance and the huge impact that these processes have in our lives, quantitative scientific understanding of them is still in its infancy, mainly due to the difficulty of collecting large datasets of social networks including individual attributes. In this work, we present a thorough study of real social networks of 13 schools, with more than 3,000 students and 60,000 declared positive and negative relations, including tests for personal traits of all the students. We introduce a metric -- the `triadic influence' -- that measures the influence of nearest-neighbors in the relationships of their contacts. We use neural networks to predict the relationships and to extract the probability that two students are friends or enemies depending on their personal attributes or the triadic influence. We alternatively use a high-dimensional embedding of the network structure to also predict the relationships. Remarkably, the triadic influence (a simple one-dimensional metric) achieves the highest accuracy at predicting the relationship between two students. We postulate that the probabilities extracted from the neural networks -- functions of the triadic influence and the personalities of the students -- control the evolution of real social networks, opening a new avenue for the quantitative study of these systems.
Erfolgreich Anträge schreiben
Creators: name: Hauck, Reingis
Publisher: name: Berlin : DUZ Verlags- und Medienhaus GmbH
Year: 2014
Subjects: subject: Antragsstellung
subject: DfG-Förderung
subject: Forschungsmanagement
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::370 | Erziehung, Schul- und Bildungswesen

description: Wissenschaftlerinnen und Wissenschaftler sind heute immer häufiger auf Projektmittel angewiesen. Forschungsgelder einzuwerben ist dabei fast zu einer Wissenschaft für sich geworden. Doch es gibt Tipps, wie man mit einem Antrag im harten Wettbewerb um die Gunst der Gutachter bestehen kann.
Anticipative measurements in hybrid quantum-classical computation
Creators: name: Heinosaari, Teiko
name: Reitzner, Daniel
name: Toigo, Alessandro
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Before the availability of large scale fault-tolerant quantum devices, one has to find ways to make the most of current noisy intermediate-scale quantum devices. One possibility is to seek smaller repetitive hybrid quantum-classical tasks with higher fidelity, rather than directly pursuing large complex tasks. We present an approach in this direction where the quantum computation is supplemented by a classical result. While the presence of the supplementary classical information helps alone, taking advantage of its anticipation also leads to a new type of quantum measurements, which we call anticipative. Anticipative quantum measurements lead to improved success rate over cases where we would use quantum measurements optimized without assuming the later arriving supplementing information. Importantly, in an anticipative quantum measurement the combination of the results from classical and quantum computations happens only in the end, without the need for feedback from the one to the other computation, a feature which hence allows for running both computations in parallel. We demonstrate the method with an experiment using an IBMQ device and show that it leads to an improved success rate even in a real noisy setting.
Aberration-corrected quantum temporal imaging system
Creators: name: Zhu, Yunhui
name: Kim, Jungsang.
name: Gauthier, Daniel J.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We describe the design of a temporal imaging system that simultaneously reshapes the temporal profile and converts the frequency of a photonic wavepacket, while preserving its quantum state. A field lens, which imparts a temporal quadratic phase modulation, is used to correct for the residual phase caused by field curvature in the image, thus enabling temporal imaging for phase-sensitive quantum applications. We show how this system can be used for temporal imaging of time-bin entangled photonic wavepackets and compare the field lens correction technique to systems based on a temporal telescope and far-field imaging. The field-lens approach removes the residual phase using four dispersive elements. The group delay dispersion (GDD) $D$ is constrained by the available bandwidth $Δν$ by $D>t/Δν$, where $t$ is the temporal width of the waveform associated with the dispersion $D$. This is compared to the much larger dispersion $D\gg πt^2/8$ required to satisfy the Fraunhofer condition in the far field approach.
description: 8 pages, 6 figures
Discovery of a possibly single blue supergiant star in the intra-cluster region of Virgo cluster of galaxies
Creators: name: Ohyama, Youichi
name: Hota, Ananda
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: IC 3418 is a dwarf irregular galaxy falling into the Virgo cluster, and a 17 kpc long trail is seen behind the galaxy, which is considered to have formed due to ram pressure stripping. The trail contains compact knots and diffuse blobs of ultraviolet and blue optical emission and, thus, it is a clear site of recent star formation but in an unusual environment, surrounded by a million degree intra-cluster medium. We report on our optical spectroscopy of a compact source in the trail, SDSS J122952.66+112227.8, and show that the optical spectrum is dominated by emission from a massive blue supergiant star. If confirmed, our report would mark the farthest star with spectroscopic observation. We interpret that a massive O-type star formed in situ in the trail has evolved recently out of the main sequence into this blue supergiant phase, and now lacks any detectable spectral sign of its associated HII region. We argue that turbulence within the ram pressure striped gaseous trail may play a dominant role for the star formation within such trails.
description: Published in the Astrophysical Journal Letters, and will be Press-released by Subaru telescope and Canada-French-Hawaii-Telescope (CFHT), titled "Discovery of a Blue Supergiant Star Born in the Wild"
Physiological and morphological responses of different spring barley genotypes to water deficit and associated QTLs
Creators: name: Moualeu-Ngangué, Dany
name: Dolch, Christoph
name: Schneider, Michael
name: Léon, Jens
name: Uptmoor, Ralf
name: Stützel, Hartmut
Publisher: name: San Francisco, California, US : PLOS
Year: 2020
Subjects: subject: water deficit
subject: food production
subject: climate change
subject: Dewey Decimal Classification::500 | Naturwissenschaften
subject: Dewey Decimal Classification::600 | Technik::610 | Medizin, Gesundheit

description: Water deficit is one of the major limitations to food production worldwide and most climate change scenarios predict an aggravation of the situation. To face the expected increase in drought stress in the coming years, breeders are working to elucidate the genetic control of barley growth and productivity traits under water deficit. Barley is known as a relatively drought tolerant crop and genetic variability was observed for drought tolerance traits. The objectives of the present study were the quantification of morphological and physiological responses in a collection of 209 spring barley genotypes to drought stress, and the genetic analysis by genome-wide association study to find quantitative trait loci (QTL) and the allele contributions for each of the investigated traits. In six pot experiments, 209 spring barley genotypes were grown under a well-watered and water-limited regime. Stress phases were initiated individually for each genotype at the beginning of tillering and spiking for the vegetative- and the generative stage experiments, respectively, and terminated when the transpiration rates of stress treatments reached 10% of the well-watered control. After the stress phase, a total of 42 productivity related traits such as the dry matter of plant organs, tiller number, leaf length, leaf area, amount of water soluble carbohydrates in the stems, proline content in leaves and osmotic adjustment of corresponding well-watered and stressed plants were analysed, and QTL analyses were performed to find marker-trait associations. Significant water deficit effects were observed for almost all traits and significant genotype x treatment interactions (GxT) were observed for 37 phenotypic traits. Genome-wide association studies (GWAS) revealed 77 significant loci associated with 16 phenotypic traits during the vegetative stage experiment and a total of 85 significant loci associated with 13 phenotypic traits during the generative stage experiment for traits such as leaf area, number of green leaves, grain yield, harvest index and stem length. For traits with significant GxT interactions, genotypic differences for relative values were analysed using one way ANOVA. More than 110 loci for GxT interaction were found for 17 phenotypic traits explaining in many cases more than 50% of the genetic variance.
Interacting Entropy-Corrected Holographic Dark Energy and IR Cut-Off Length
Creators: name: Sadeghi, J.
name: Pourhassan, B.
name: Moghaddam, Z. Abbaspour
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper we consider holographic dark energy model with corrected holographic energy density and show that this model may be equivalent to the modified Chaplygin gas model. Then we obtain relation between entropy corrected holographic dark energy model and scalar field models. We do these works by using choices of IR cut-off length proportional to the Hubble radius, the event horizon radius, the Ricci length, and the Granda-Oliveros length.
description: 13 pages, 2 figures added in revised version. References added
Indirect measurement of infrared absorption spectrum through thermal emission of meta-cavity array
Creators: name: Chu, Qiongqiong
name: Zhang, Fengyuan
name: Zhang, Ye
name: Zhu, Shining
name: Liu, Hui
Publisher: name: arXiv
Year: 2023
Subjects: subject: Optics (physics.optics)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Controlling thermal emission is essential for various infrared spectroscopy applications. Metasurfaces can be utilized to control multiple degrees of freedom of thermal emission, enabling the compact thermal emission materials and devices. Infrared spectroscopy such as FTIR (Fourier transform infrared spectroscopy), usually requires external infrared radiation source and complex spectroscopic devices for absorption spectrum measurement, which hinders the implementation of integrated compact and portable measurement equipment. Measuring absorption spectrum through the thermal emission of pixelated thermal emitter array can facilitate the integration and miniaturization of measurement setup, which is highly demanded for on-chip spectroscopy applications. Here, we experimentally demonstrate an integrated technology that allows for indirect measurement of the absorption spectrum through the thermal emission of meta-cavity array. This indirect measurement method opens a new avenue for compact infrared spectroscopy analysis.
description: 14 pages, 9 figures
Secondary metabolite biosynthetic diversity in the fungal family Hypoxylaceae and Xylaria hypoxylon
Creators: name: Kuhnert, E.
name: Navarro-Muñoz, J.C.
name: Becker, K.
name: Stadler, M.
name: Collemare, J.
name: Cox, R.J.
Publisher: name: Amsterdam [u.a.] : Elsevier
Year: 2021
Subjects: subject: Azaphilones
subject: Binaphthalenes
subject: Biosynthesis
subject: Comparative genomics
subject: Metabolomics
subject: Natural products
subject: Xylariales
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie
subject: Dewey Decimal Classification::500 | Naturwissenschaften::580 | Pflanzen (Botanik)

description: To date little is known about the genetic background that drives the production and diversification of secondary metabolites in the Hypoxylaceae. With the recent availability of high-quality genome sequences for 13 representative species and one relative (Xylaria hypoxylon) we attempted to survey the diversity of biosynthetic pathways in these organisms to investigate their true potential as secondary metabolite producers. Manual search strategies based on the accumulated knowledge on biosynthesis in fungi enabled us to identify 783 biosynthetic pathways across 14 studied species, the majority of which were arranged in biosynthetic gene clusters (BGC). The similarity of BGCs was analysed with the BiG-SCAPE engine which organised the BGCs into 375 gene cluster families (GCF). Only ten GCFs were conserved across all of these fungi indicating that speciation is accompanied by changes in secondary metabolism. From the known compounds produced by the family members some can be directly correlated with identified BGCs which is highlighted herein by the azaphilone, dihydroxynaphthalene, tropolone, cytochalasan, terrequinone, terphenyl and brasilane pathways giving insights into the evolution and diversification of those compound classes. Vice versa, products of various BGCs can be predicted through homology analysis with known pathways from other fungi as shown for the identified ergot alkaloid, trigazaphilone, curvupallide, viridicatumtoxin and swainsonine BGCs. However, the majority of BGCs had no obvious links to known products from the Hypoxylaceae or other well-studied biosynthetic pathways from fungi. These findings highlight that the number of known compounds strongly underrepresents the biosynthetic potential in these fungi and that a tremendous number of unidentified secondary metabolites is still hidden. Moreover, with increasing numbers of genomes for further Hypoxylaceae species becoming available, the likelihood of revealing new biosynthetic pathways that encode new, potentially useful compounds will significantly improve. Reaching a better understanding of the biology of these producers, and further development of genetic methods for their manipulation, will be crucial to access their treasures.
Additional file 1 of Development and internal validation of a non-invasive clinical tool to predict sufficient omega-3 levels in early pregnancy
Creators: name: Fu, Joanna YX
name: Wang, Carol A
name: Liu, Ge
name: Mead, Elyse
name: Phung, Jason
name: Makrides, Maria
name: Pennell, Craig E
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Science Policy

description: Additional file 1. Supplementary Table 1. Transparent Reporting of Individual Prognosis and Diagnosis (TRIPOD) Checklist
Farmers' and consumers' preferences for drinking water quality improvement through land management practices: The case study of the Soyang watershed in South Korea
Creators: name: Lee, Saem
name: Kim, Hyun No
name: Nguyen, Trung Thanh
name: Koellner, Thomas
name: Shin, Hio-Jung
Publisher: name: Basel : MDPI AG
Year: 2018
Subjects: subject: Choice experiment
subject: Stated preference
subject: Water quality improvement
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::330 | Wirtschaft::333 | Boden- und Energiewirtschaft::333,7 | Natürliche Ressourcen, Energie und Umwelt
subject: Dewey Decimal Classification::600 | Technik::690 | Hausbau, Bauhandwerk

description: The drinking water quality along the Soyang watershed has been affected negatively by the intensive agricultural practices in the upstream area. Our study used a choice experiment method in order to estimate the values that the upstream water providers (i.e., farmers) and downstream water users (i.e., consumers) attach to the following attributes, namely, the agricultural profits, water quality, and biodiversity level of the Soyang watershed in South Korea. The preferences of the upstream water providers and downstream water users were presented by a conditional logit model and with interactions. The results from the conditional logit model specifications revealed that water quality is the most important attribute that is preferred by the downstream water users and upstream farmers. Both the upstream farmers and downstream water users have put substantial values on the protection of water bodies in the Soyang watershed, and are concerned about the consequences of water usage on the environment and human health. The respondents in each income group and in different local communities with income levels seemed to have different implicit costs for the water quality improvement in the Soyang watershed. Our study has provided robust results regarding the benefits of water improvement using sustainable land management and can be considered as a fundamental input for aiding the sustainable water-land nexus policies. We suggest that the government carefully designs a policy so as to compensate the highland farmers for their income losses as a result of the changing farming practices. © 2018 by the author.
Clustering Affine Subspaces: Algorithms and Hardness
Creators: name: Lee, Euiwoong
Publisher: name: California Institute of Technology
Year: 2012
Subjects: k-center
Clustering
Helly theorem
Flats
Incomplete data
Computer Science
Minimum Enclosing Ball
High dimension

description: We study a generalization of the famous k-center problem where each object is an affine subspace of dimension Δ, and give either the first or significantly improved algorithms and hardness results for many combinations of parameters. This generalization from points (Δ=0) is motivated by the analysis of incomplete data, a pervasive challenge in statistics: incomplete data objects in Rd can be modeled as affine subspaces. We give three algorithmic results for different values of k, under the assumption that all subspaces are axis-parallel, the main case of interest because of the correspondence to missing entries in data tables.

1) k=1: Two polynomial time approximation schemes which runs in poly(Δ, 1/ε)nd.

2) k=2: O(Δ1/4)-approximation algorithm which runs in poly(n,d,Δ)

3) General k: Polynomial time approximation scheme which runs in 2O(Δk log k(1+1/ε2))nd

We also prove nearly matching hardness results; in both the general (not necessarily axis-parallel) case (for k ≥ 2) and in the axis-parallel case (for k ≥ 3), the running time of an approximation algorithm with any approximation ratio cannot be polynomial in even one of k and Δ, unless P = NP. Furthermore, assuming that the 3-SAT problem cannot be solved subexponentially, the dependence on both k and Δ must be exponential in the general case (in the axis-parallel case, only the dependence on k drops to 2Ω√k)). The simplicity of the first and the third algorithm suggests that they might be actually used in statistical applications. The second algorithm, which demonstrates a theoretical gap between the axis-parallel and general case for k=2, displays a strong connection between geometric clustering and classical coloring problems on graphs and hypergraphs, via a new Helly-type theorem.
Weak Energy: Form and Function
Creators: name: Parks, Allen D.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The equation of motion for a time-independent weak value of a quantum mechanical observable contains a complex valued energy factor - the weak energy of evolution. This quantity is defined by the dynamics of the pre-selected and post-selected states which specify the observable's weak value. It is shown that this energy: (i) is manifested as dynamical and geometric phases that govern the evolution of the weak value during the measurement process; (ii) satisfies the Euler-Lagrange equations when expressed in terms of Pancharatnam (P) phase and Fubini-Study (FS) metric distance; (iii) provides for a PFS stationary action principle for quantum state evolution; (iv) time translates correlation amplitudes; (v) generalizes the temporal persistence of state normalization; and (vi) obeys a time-energy uncertainty relation. A similar complex valued quantity - the pointed weak energy of an evolving state - is also defined and several of its properties in PFS-coordinates are discussed. It is shown that the imaginary part of the pointed weak energy governs the state's survival probability and its real part is - to within a sign - the Mukunda-Simon geometric phase for arbitrary evolutions or the Aharonov-Anandan (AA) phase for cyclic evolutions. Pointed weak energy gauge transformations and the PFS 1-form are discussed and the relationship between the PFS 1-form and the AA connection 1-form is established.
description: To appear in "Quantum Theory: A Two-Time Success Story"; Yakir Aharonov Festschrift
Analyse und Modellierung nichtlinearer Schwingungen beim Außenrundeinstechschleifen
Creators: name: Schütte, Oliver
Publisher: name: Hannover : Universität
Year: 2003
Subjects: subject: External cylindrical grinding
subject: chatter vibrations
subject: grinding model
subject: Dewey Decimal Classification::600 | Technik::670 | Industrielle und handwerkliche Fertigung

description: [no abstract]
Double and Triple Givental's J-functions for Stable Quotients Invariants
Creators: name: Zinger, Aleksey
Publisher: name: arXiv
Year: 2013
Subjects: subject: Algebraic Geometry (math.AG)
subject: Symplectic Geometry (math.SG)
subject: FOS: Mathematics
subject: 14N35, 53D45

description: We use mirror formulas for the stable quotients analogue of Givental's J-function for twisted projective invariants obtained in a previous paper to obtain mirror formulas for the analogues of the double and triple Givental's J-functions (with descendants at all marked points) in this setting. We then observe that the genus 0 stable quotients invariants need not satisfy the divisor, string, or dilaton relations of the Gromov-Witten theory, but they do possess the integrality properties of the genus 0 three-point Gromov-Witten invariants of Calabi-Yau manifolds. We also relate the stable quotients invariants to the BPS counts arising in Gromov-Witten theory and obtain mirror formulas for certain twisted Hurwitz numbers.
description: 60 pages, 9 figures, 1 table. arXiv admin note: text overlap with arXiv:1201.6350
Identifizierung und funktionelle Charakterisierung von hBD3, einem neuen antimikrobiellen Peptid aus der Gruppe der humanen [beta]-Defensine
Creators: name: Schulz-Maronde, Sandra
Publisher: name: Hannover : Universität
Year: 2003
Subjects: subject: Immune system
subject: antimicrobial peptides
subject: beta-defensins
subject: Dewey Decimal Classification::600 | Technik::610 | Medizin, Gesundheit

description: [no abstract]
Star formation history of the post-collisional Cartwheel galaxy using Astrosat/UVIT FUV images
Creators: name: Mayya, Y. D.
name: Barway, Sudhanshu
name: Gómez-González, V. M. A.
name: Zaragoza-Cardiel, J.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present the results obtained by analysing new Astrosat/UVIT far ultraviolet (FUV) image of the collisional-ring galaxy Cartwheel. The FUV emission is principally associated with the star-forming outer ring, with no UV detection from the nucleus and inner ring. A few sources are detected in the region between the inner and the outer rings, all of which lie along the spokes. The FUV fluxes from the detected sources are combined with aperture-matched multi-band photometric data from archival images to explore the post-collision star formation history of the Cartwheel. The data were corrected for extinction using Av derived from the Balmer decrement ratios and commonly used extinction curves. We find that the ring regions contain stellar populations of wide range of ages, with the bulk of the FUV emission coming from non-ionizing stars, formed over the last 20 to 150 Myr, that are ~25 times more massive than the ionizing populations. On the other hand, regions belonging to the spokes have negligible current star formation, with the age of the dominant older population systematically increasing as its distance from the outer ring increases. The presence of populations of a wide range of ages in the ring suggests that the stars formed in the wave in the past were dragged along it to the current position of the ring. We derive an average steady star formation rate, SFR=5 Msun/yr, over the past 150 Myr, with an increase to ~18 Msun/yr in the recent 10 Myr.
description: 16 pages, to appear in MNRAS
Assessment of Farmers Perception towards Production and Utilization of Improved Forages for Dairy Cattle Feeding in the central highlands of Ethiopia
Creators: name: Serekebrhan, Tekleab
name: Animut, Getachew
name: Mekasha, Yosef
name: Assefa, Getnet
Publisher: name: East African Journal of Veterinary and Animal Sciences
Year: 2018

description: This study was conducted to assess farmers’ perception, production and utilization of improved forage (IF) under rural and peri-urban production systems of Adea-berga and Ejere districts of West Shewa and Welmera district of Oromia special Zone, central highlands of Ethiopia. A questionnaire based survey was conducted on 105 households (47 rural, 58 peri-urban) identified by purposive random sampling method. Fifteen non-users were also included to assess factors hindering IF utilization. The known commonly grown IF includes; oats, elephant grass, and vetch as reported by 95, 85 and 67% of the respondents, respectively. About 92% of the respondents produce their own IF while others either purchase or purchase and produce. About 91 % of respondents have medium and high level of perception score. Illiterateness and land holding significantly (p<0.05) predicted farmer’s IF perception. On average, the respondent reported to allocate 0.316 ha of land to cultivate forages. Respondents perceived that utilization of Desho grass is increasing while that of tree lucerne and sesbania is declining due to variation in palatability of the forages. Improved forages were fed to dairy animals as green feed, hay, residue or their combination. Farmers perceived improvement of feed intake, milk yield, utilization of roughage feeds, and reduced expense for supplementary feeds as main benefit of IF utilization. Non-IF user farmers reported that land shortage (53%), skill gap (23%), and lack of appropriate information (15%) as major limiting factors from growing IF. About 13% peri-urban and 19% rural respondents, respectively were unhappy by the IF extension service. It is concluded that farmers in the study areas have good perception on the importance of IF as dairy feed resource. However, effective extension service in terms of seed supply, training, awareness building, regular technical back-ups, and monitoring should be emphasized to ensure sustainable production and utilization of improved forage crops in the study areas.
description: East African Journal of Veterinary and Animal Sciences, Vol. 2 No. 1 (2018): East African Journal of Veterinary and Animal Sciences
On polyharmonic univalent mappings
Creators: name: Chen, Jiaolong
name: Rasila, Antti
name: Wang, Xiantao
Publisher: name: arXiv
Year: 2013
Subjects: subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: Primary 30C65, 30C45, Secondary 30C20

description: In this paper, we introduce a class of complex-valued polyharmonic mappings, denoted by $HS_{p}(λ)$, and its subclass $HS_{p}^{0}(λ)$, where $λ\in [0,1]$ is a constant. These classes are natural generalizations of a class of mappings studied by Goodman in 1950's. We generalize the main results of Avci and Złotkiewicz from 1990's to the classes $HS_{p}(λ)$ and $HS_{p}^{0}(λ)$, showing that the mappings in $HS_{p}(λ)$ are univalent and sense preserving. We also prove that the mappings in $HS_{p}^{0}(λ)$ are starlike with respect to the origin, and characterize the extremal points of the above classes.
Electron dynamics inside a vacuum tube diode through linear differential equations
Creators: name: Gonzalez, Gabriel
name: Orozco, Fco. Javier Gonzalez
Publisher: name: arXiv
Year: 2013
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: In this paper we analyze the motion of charged particles in a vacuum tube diode by solving linear differential equations. Our analysis is based on expressing the volume charge density as a function of the current density and coordinates only, while in the usual scheme the volume charge density is expressed as a function of the current density and electrostatic potential. Our approach gives the well known behavior of the classical current density proportional to the three-halves power of the bias potential and inversely proportional to the square of the gap distance between the electrodes, and does not require the solution of the nonlinear differential equation normally associated with the Child-Langmuir formulation.
description: 5 pages
Allium oleraceum L.
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: A. oleraceum L. Cat. 350. Bis2140m:ob Findelen bei Zermatt (Thellung 1922). (Die Höhengrenze«2200m»im Cat.ist hera zusetzen. Mit dieser Zahl wollte J.offenbar die RIONsche Angabe «Findelen» hervorheben. RION hatte aber keine Höhe angegeben.) l: Unter Salanfe (Coquoz); Les Marecottes-Le Treuen (J.); Outre-Rhône (Gams). - 2: Ob Fully bis 2150 m unter dem Portail de Fully (Gams); Valère bei Sitten (P.). - 3: Le dos ob Liddes (R. Chodat); Fionnay (J.); Zinal-Sorebois, 2010 m (Sulger); Saastal (Miller, A.Keller). - 3a: Laggintal (v. Tavel); Gondoschlucht; Presa; Gondo;unteres Zwischbergental (alles:Becherer). - 4:Ulrichen (Schmid). Var. angustifolium Koch f. virens (Lam.) Regel- So vorherrschend. Forma roseum Regel - 2:Zwischen Branson und Fully und unter dem Portail de Fully (Gams). Var.complanatiun Fries - l: Bei Collonges (Gams).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
Towards an Application of Update Propagation on Logic Programs Representing Java Source Code
Creators: name: Tantius, Richard
name: Speicher, Daniel
name: Behrend, Andreas
Publisher: name: arXiv
Year: 2013
Subjects: subject: Software Engineering (cs.SE)
subject: Programming Languages (cs.PL)
subject: FOS: Computer and information sciences

description: Logic programs are now used as a representation of object-oriented source code in academic prototypes for about a decade. This representation allows a clear and concise implementation of analyses of the object-oriented source code. The full potential of this approach is far from being explored. In this paper, we report about an application of the well-established theory of update propagation within logic programs. Given the representation of the object-oriented code as facts in a logic program, a change to the code corresponds to an update of these facts. We demonstrate how update propagation provides a generic way to generate incremental versions of such analyses.
Effects of Replacing Maize with Enset (Ensete ventricosum) Corm on Growth, Carcass, Blood Heamatology, and Biochemistry of Broiler Chicken
Creators: name: Fekade, Nigussu
name: Urge, Mengistu
name: Nurfeta, Ajebu
name: Animut, Getachew
Publisher: name: East African Journal of Veterinary and Animal Sciences
Year: 2018

description: A total of 192 day-old unsexed broiler chicks were randomly and equally distributed in to 12 pens and used to evaluate the effects of replacing maize with enset corm on feed intake, body weight gain, carcass characteristics, blood hematology and biochemistry. Treatments were dietary levels of enset corm at 0% (T1), 15% (T2), 30% (T3) and 45% (T4) to replace maize by weight. Isocaloric and isonitrogenous starter and finisher rations were prepared and used for 42 days trial at Haramaya University. Four broilers (2 from each sex) were randomly taken from each pen and slaughtered for carcass evaluation. Daily dry matter intake during the entire period of the study ranged from 86.9 to 90 g/bird and was significantly (p<0.05) higher for T4. Average daily gain during the finisher phase was similar for T1 and T2 but higher (p<0.05) than T3 and T4. Better (p<0.05) feed conversion ratio was obtained from broilers fed T2 diet during the finisher and entire period of the study. Replacement of maize by enset corm at T4 level lowered (p<0.05) dressed and eviscerated weight. Blood hematology and serum biochemistry indices were not differ significantly (p>0.05) among the treatments except alkaline phosphatase (ALP) which was significantly higher (p<0.05) for birds fed T4 diet. The highest net return was obtained from broilers consumed T2 treatment diet. In conclusion, enset corm can replace maize as an energy source ingredient up to 30% without affecting broiler performance even though the 15% inclusion of enset corm was more profitable.
description: East African Journal of Veterinary and Animal Sciences, Vol. 2 No. 1 (2018): East African Journal of Veterinary and Animal Sciences
Model-independent estimation of the cosmography parameters using cosmic chronometers
Creators: name: Jalilvand, Faeze
name: Mehrabi, Ahmad
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Measurement of the universe expansion rate through the cosmic chronometers proves to be a novel approach to understanding cosmic history. Although it provides a direct determination of the Hubble parameters at different redshifts, it suffers from underlying systematic uncertainties. In this work, we analyze the recent cosmic chronometer data with and without systematic uncertainties and investigate how they affect the results. We perform our analysis in both model-dependent and independent methods to avoid any possible model bias. In the model-dependent approach, we consider the $Λ$CDM, wCDM and CPL models. On the Other hand, since the Gaussian process provides a unique tool to study data including a non-diagonal covariance matrix, our model-independent analysis is based on the Gaussian process.
description: Published in EPJCP
title: ОБ АКТУАЛЬНЫХ ВОПРОСАХ НАЛОЖЕНИЯ АРЕСТА НА ИМУЩЕСТВО В РАМКАХ УГОЛОВНО-ПРОЦЕССУАЛЬНЫХ ПРОЦЕДУР
Creators: name: Попова, Ольга
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2019

description: В статье рассматриваются отдельные проблемы института наложения ареста на имущество в рамках уголовно-процессуальных процедур, а также содержатся практические рекомендации по восстановлению нарушенных прав.
Concavity Effects on the Optical Properties of Aromatic Hydrocarbons
Creators: name: Cocchi, Caterina
name: Prezzi, Deborah
name: Ruini, Alice
name: Caldas, Marilia J.
name: Fasolino, Annalisa
name: Molinari, Elisa
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study the modifications on the ground and excited state properties of polycyclic aromatic hydrocarbons (PAHs), induced by the variation of concavity and $π$-connectivity. Inspired by experimentally feasible systems, we study three series of PAHs, from H-saturated graphene flakes to geodesic buckybowls, related to the formation of fullerene C60 and C50-carbon nanotube caps. Working within the framework of quantum chemistry semi-empirical methods AM1 and ZINDO/S, we find that the interplay between concavity and π-connectivity shifts the bright optical lines to higher energies, and introduces symmetry-forbidden dark excitations at low energy. A generally good agreement with the available experimental data supports our results, which can be viewed as the basis for designing optical properties of novel curved aromatic molecules.
Influence of laser power on the shape of single tracks in scanner based laser wire cladding
Creators: name: Barroi, A.
name: Gonçalves, D.A.
name: Hermsdorf, J.
name: Kaierle, S.
name: Overmeyer, L.
Publisher: name: Amsterdam : Elsevier B.V.
Year: 2016
Subjects: subject: laser cladding
subject: laser scanner
subject: shape
subject: wire
subject: Cladding (coating)
subject: Laser cladding
subject: Stainless steel
subject: Wire
subject: Laser power
subject: Laser scanner
subject: Single-tracks
subject: Substrate material
subject: Traverse speed
subject: Weld seam
subject: Welding directions
subject: Scanning
subject: Konferenzschrift
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: The shape of the cladding tracks is extremely important for producing layers or structures by adding them sequently. This paper shows the influence of the laser power of a diode laser in the range of 500 to 1000 W on the shapes of single tracks in scanner based laser wire cladding. The scanner was used to oscillate the beam perpendiculary to the welding direction. Stainless steel (ER 318 Si) wire with a 0.6 mm diameter was used as deposition material. Height, width, penetration, molten area and weld seam angles of single tracks were obtained from cross-sections at three different positions of each track. The influence of these different positions on the results depends on the traverse speed. The paper discusses this influence in respect to the heat dissipation in the substrate material.
The Mahler measure of a Calabi-Yau threefold and special L-values
Creators: name: Papanikolas, Matthew A.
name: Rogers, Mathew D.
name: Samart, Detchat
Publisher: name: arXiv
Year: 2013
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11F67 (Primary) 11R06, 33C20, 33C75 (Secondary)

description: The aim of this paper is to prove a Mahler measure formula of a four-variable Laurent polynomial whose zero locus defines a Calabi-Yau threefold. We show that its Mahler measure is a rational linear combination of a special L-value of the normalized newform in S_4(Gamma_0(8)) and a Riemann zeta value. This is equivalent to a new formula for a 6F5-hypergeometric series evaluated at 1.
description: 11 pages
Husbandry and Breeding Practices of Indigenous Sheep in Bensa District of Sidama Zone, Southern Region
Creators: name: Kenfo, Hizkel
name: Mekasha, Yoseph
name: Tadesse, Yosef
Publisher: name: East African Journal of Veterinary and Animal Sciences
Year: 2018

description: The study was carried out in the highland and mid-land of Bensa district of Sidama Zone, southern Ethiopia. The objectives of the study were to assess the husbandry and breeding practices of indigenous sheep. A total of 128 households from four kebeles were selected randomly from the purposively selected areas based on sheep population and accessibility. Data was gathered through semi structured questionnaire, focus group discussions and key informants interview. In addition, secondary information was collected from the Livestock and Fishery development offices. The primary reason of keeping sheep was for cash income, saving, and meat production in both agro-ecologies. Docking of fat tail of ewe lambs is a common practice in the highland agro-ecology. Selection was practiced both for male and female sheep mainly focusing on growth rate, appearance and coat color traits. In the highland area, appearance, growth rate, coat color, and tail type were the most frequently used traits for breeding rams. Twining ability, appearance, coat color, and lamb growth rate were mentioned as traits they give due emphasis in choosing future breeding ewes across the two agro-ecologies. It was concluded that considering producers objective traits identified in the current study would help in designing sheep genetic improvement in the study area.
description: East African Journal of Veterinary and Animal Sciences, Vol. 2 No. 1 (2018): East African Journal of Veterinary and Animal Sciences