cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Artificial Neural Networks and Guided Gene Expression Programming to Predict Wall Pressure Spectra Beneath Turbulent Boundary Layers
Creators: name: Kurhade, Nachiketa Narayan
name: Vadlamani, Nagabhushana Rao
name: Haridas, Akash
Publisher: name: arXiv
Year: 2023
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: This study evaluates the efficacy of two machine learning (ML) techniques, namely artificial neural networks (ANN) and gene expression programming (GEP) that use data-driven modeling to predict wall pressure spectra (WPS) underneath turbulent boundary layers. Different datasets of WPS from experiments and high-fidelity numerical simulations covering a wide range of pressure gradients and Reynolds numbers are considered. For both ML methods, an optimal hyperparameter environment is identified that yields accurate predictions. ANN is observed to be faster and more accurate than GEP with an order of magnitude lower training time and logarithmic mean squared error ($lMSE$), despite a higher memory consumption. Novel training schemes are devised to address the shortcomings of GEP. These include (a) ANN-assisted GEP to reduce the noise in the training data, (b) exploiting the low and high-frequency trends to guide the GEP search, and (c) a stepped training strategy where the chromosomes are first trained on the canonical datasets followed by the datasets with complex features. When compared to the baseline scheme, these training strategies accelerated convergence and resulted in models with superior accuracy ($\approx 30\%$ reduction in the median $lMSE$) and higher reliability ($\approx 75\%$ reduction in the spread of $lMSE$ in the interquartile range). The final GEP models captured the complex trends of WPS across varying flow conditions and pressure gradients, surpassing the accuracy of Goody's model.
A Class of Minimally Modified Gravity Theories
Creators: name: Lin, Chunshan
name: Mukohyama, Shinji
Publisher: name: arXiv
Year: 2017
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate the Hamiltonian structure of a class of gravitational theories whose actions are linear in the lapse function. We derive the necessary and sufficient condition for a theory in this class to have two or less local physical degrees of freedom. As an application we then find several concrete examples of modified gravity theories in which the total number of local physical degrees of freedom in the gravity sector is two.
description: 20 pages, no figure
Klopstock, Hamburg und die musikalische Welt
Creators: name: Koch, Klaus-Peter
Publisher: name: Jahrbuch Ständige Konferenz Mitteldeutsche Barockmusik
Year: 2018

description: Nicht zuletzt waren es besonders die Aufenthalte von Friedrich Gottlieb Klopstock in Hamburg und Kopenhagen, aber auch seine Reisen, die bewirkten, dass sich Komponisten mit seinen Texten auseinandersetzten und sie vertonten. Persönliche Begegnungen, Korrespondenz et cetera hatten zur Folge, dass bereits zu seinen Lebzeiten Tonsetzer wie Christoph Willibald Gluck, Georg Philipp Telemann, Carl Heinrich Graun, Carl Philipp Emanuel Bach, Johann Friedrich Reichardt Gesänge aus dem "Messias", Oden und Lieder und Teile aus den Schauspielen "Salomo" und "Hermanns Schlacht" vertonten. Ein Anhang stellt Kompositionen bis 1803 zusammen. (der Autor) Quelle: Bibliographie des Musikschrifttums online
description: Jahrbuch Ständige Konferenz Mitteldeutsche Barockmusik, Bd. 5 (2005): Jahrbuch 2003: Klopstock und die Musik
Cyber-infrastructure to Support Science and Data Management for the Dark Energy Survey
Creators: name: Ngeow, C.
name: Mohr, J. J.
name: Alam, T.
name: Barkhouse, W. A.
name: Beldica, C.
name: Cai, D.
name: Daues, G.
name: Plante, R.
name: Annis, J.
name: Lin, H.
name: Tucker, D.
name: Smith, R. C.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The Dark Energy Survey (DES; operations 2009-2015) will address the nature of dark energy using four independent and complementary techniques: (1) a galaxy cluster survey over 4000 deg2 in collaboration with the South Pole Telescope Sunyaev-Zel'dovich effect mapping experiment, (2) a cosmic shear measurement over 5000 deg2, (3) a galaxy angular clustering measurement within redshift shells to redshift=1.35, and (4) distance measurements to 1900 supernovae Ia. The DES will produce 200 TB of raw data in four bands, These data will be processed into science ready images and catalogs and co-added into deeper, higher quality images and catalogs. In total, the DES dataset will exceed 1 PB, including a 100 TB catalog database that will serve as a key science analysis tool for the astronomy/cosmology community. The data rate, volume, and duration of the survey require a new type of data management (DM) system that (1) offers a high degree of automation and robustness and (2) leverages the existing high performance computing infrastructure to meet the project's DM targets. The DES DM system consists of (1) a grid-enabled, flexible and scalable middleware developed at NCSA for the broader scientific community, (2) astronomy modules that build upon community software, and (3) a DES archive to support automated processing and to serve DES catalogs and images to the collaboration and the public. In the recent DES Data Challenge 1 we deployed and tested the first version of the DES DM system, successfully reducing 700 GB of raw simulated images into 5 TB of reduced data products and cataloguing 50 million objects with calibrated astrometry and photometry.
description: 12 pages, 3 color figures, 1 table. Published in SPIE vol. 6270
Eine unbekannte Handschrift von Johann Philipp Kirnberger in Sankt Petersburg
Creators: name: Yankus, Alla I.
Publisher: name: Jahrbuch Ständige Konferenz Mitteldeutsche Barockmusik
Year: 2018

description: Eine bislang unbeachtete Handschrift von Johann Philipp Kirnberger, die im St. Petersburger Konservatorium aufbewahrt wird, ermöglicht neue Einblicke in die Generalbass-Lehrmethodik von dessen mutmaßlichem Lehrer Johann Sebastian Bach. Unter Bezugnahme auf Kirnbergers Traktat „Grundsätze des Generalbasses“ lässt sich das Autograph, ein doppelseitig beschriebenes Notenblatt mit bezifferten Bassfortschreitungen in verschiedenen Tonarten, den ersten Schritten im Erlernen der Kompositionslehre zuordnen. Die handschriftlichen Kommentare Kirnbergers illustrieren ein Vorgehen, das sich am Spiel kurzer Übungsbeispiele orientiert, aufwärts und abwärts durch den Quintenzirkel moduliert und damit eine Lehrmethodik ausprägt, die bis heute gebräuchlich ist. (Wendelin Bitzan) Quelle: Bibliographie des Musikschrifttums online
description: Jahrbuch Ständige Konferenz Mitteldeutsche Barockmusik, Bd. 7 (2006): Jahrbuch 2005: Musikgeschichte im Zeichen der Reformation
Distinguishing short duration noise transients in LIGO data to improve the PyCBC search for gravitational waves from high mass binary black hole mergers
Creators: name: Nitz, Alexander Harvey
Publisher: name: arXiv
Year: 2017
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: "Blip glitches" are a type of short duration transient noise in LIGO data. The cause for the majority of these is currently unknown. Short duration transient noise creates challenges for searches of the highest mass binary black hole systems, as standard methods of applying signal consistency, which look for consistency in the accumulated signal-to-noise of the candidate event, are unable to distinguish many blip glitches from short duration gravitational-wave signals due to similarities in their time and frequency evolution. We demonstrate a straightforward method, employed during Advanced LIGO's second observing run, including the period of joint observation with the Virgo observatory, to separate the majority of this transient noise from potential gravitational-wave sources. This yields a $\sim 20\%$ improvement in the detection rate of high mass binary black hole mergers ($> 60 M_{\odot}$) for the PyCBC analysis.
description: 5 pages, 4 figures, as accepted by CQG
Inducible CRISPR genome editing platform in naive human embryonic stem cells reveals JARID2 function in self-renewal
Creators: name: Ferreccio, Amy
name: Mathieu, Julie
name: Detraux, Damien
name: Logeshwaran Somasundaram
name: Cavanaugh, Christopher
name: Sopher, Bryce
name: Fischer, Karin
name: Bello, Thomas
name: Abdiasis M. Hussein
name: Shiri Levy
name: Cook, Savannah
name: Sidhu, Sonia B.
name: Artoni, Filippo
name: Palpant, Nathan J.
name: Reinecke, Hans
name: Yuliang Wang
name: Paddison, Patrick
name: Murry, Charles
name: Jayadev, Suman
name: Ware, Carol
name: Ruohola-Baker, Hannele
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: Evolutionary Biology
subject: Developmental Biology
subject: Cancer
subject: Hematology

description: To easily edit the genome of naïve human embryonic stem cells (hESC), we introduced a dual cassette encoding an inducible Cas9 into the AAVS1 site of naïve hESC (iCas9). The iCas9 line retained karyotypic stability, expression of pluripotency markers, differentiation potential, and stability in 5iLA and EPS pluripotency conditions. The iCas9 line induced efficient homology–directed repair (HDR) and non-homologous end joining (NHEJ) based mutations through CRISPR-Cas9 system. We utilized the iCas9 line to study the epigenetic regulator, PRC2 in early human pluripotency. The PRC2 requirement distinguishes between early pluripotency stages, however, what regulates PRC2 activity in these stages is not understood. We show reduced H3K27me3 and pluripotency markers in JARID2 2iL-I-F hESC mutants, indicating JARID2 requirement in maintenance of hESC 2iL-I-F state. These data suggest that JARID2 regulates PRC2 in 2iL-I-F state and the lack of PRC2 function in 5iLA state may be due to lack of sufficient JARID2 protein.
Neutrino mass and lepton number violation in the Little Higgs model
Creators: name: Goyal, Ashok
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study lepton number violation in Little Higgs model and find that the choice of putting triplet Higgs vev equal to zero so as not to have any tree level neutrino Majorana mass is not natural in the sense that such a term is generated at the one loop level. We investigate the contribution of exotic lepton number violating terms on neutrinoless double beta decay, K meson decay and on trilepton production in $ν$-N scattering.
description: 6 pages including 3 eps figures, talk given at PASCOS-05 held at Gyeongju, Korea from 30 May - 4 June 2005
Dynamical systems analysis of phantom models
Creators: name: Roy, Nandan
name: Bhadra, Nivedita
Publisher: name: arXiv
Year: 2017
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Dynamical Systems (math.DS)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: In this work, we study the dynamical systems analysis of phantom dark energy models considering a general potential. The stability analysis of the system shows that there is only one fixed point which could be the beginning of the universe but there could be many options for our future destiny. A detail numerical analysis of the system is also done using three different schemes and it shows that the late time behavior of the system is consistent with the recent observations.
description: 11 pages, 24 figures
Role of Plantation on the environmental Protection in Hargeisa, Somaliland: Case study of Hargeisa, Somaliland.
Creators: name: Mohamoud Mohamed, Hassan Ali
Publisher: name: Zenodo
Year: 2025
Subjects: Role of Plantation on the environmental Protection in Hargeisa, Somaliland
Role of Plantation
environmental Protection in Hargeisa

description: New energy trees, such as Jatropha Curcas L, are mostly planted in the current climatic change scenario for development programs. Plantation done in an unsuitable area for future climate change, the project plan can fail. Consequently, the significant financial, labor, and land resources invested in the planting programs will either be wasted or not have the expected bio- diesel yield. The negative impact of plantations is uncertain. The future rewards or losses untangle the diverse and often complex webs of direct and indirect people-environment- economic impacts (Kamali et al., 2002). Indicators can then measure the effects of plantations and associated industrial operations. The significant development of environmental protection problems is a challenge for which no single policy exists. However, the combination of existing opportunities and increased efficiency in all social and economic areas of states would contribute to solving the problem of resources and distribution. Environmental protection is a principal area of cooperation and international regulations, which assumes a global or across- borders dimension. The persistence, purpose, and inter-temporal nature of environmental problems call for preventive actions. Chowdhury et al. (2023) depicted that environmental problems affect worldwide, and the severity and intensity of problems can differ in different geographical regions, but its impact is significant in industrialized countries. Numerous developed countries such as the USA, China, Japan act have taken significant steps in modern decades to create awareness of problems such as air pollution and contamination of drinking water among local communities. Developed countries face issues mostly relevant to safety of chemicals in consumer products, legacy contamination from historic industrial uses, and rising concerns about recently identified chemical hazards.
Ulrike Kollmar, "Gottlob Harrer (1703-1755). Kapellmeister des Grafen Heinrich von Brühl am sächsisch-polnischen Hof und Thomaskantor in Leipzig", Beeskow 2006
Creators: name: Allihn, Ingeborg
Publisher: name: Jahrbuch Ständige Konferenz Mitteldeutsche Barockmusik
Year: 2018

description: Jahrbuch Ständige Konferenz Mitteldeutsche Barockmusik, Bd. 7 (2006): Jahrbuch 2005: Musikgeschichte im Zeichen der Reformation
Control of organelle size: the Golgi complex.
Creators: name: Debrup  Sengupta
name: Linstedt, Adam
Publisher: name: Carnegie Mellon University
Year: 2011
Subjects: subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences

description: The Golgi complex processes secretory proteins and lipids, carries out protein sorting and signaling, and supports growth and composition of the plasma membrane. Golgi complex size likely is regulated to meet the demands of each function, and this may involve differential changes of its distinct subdomains. Nevertheless, the primary size change is elongation of the Golgi ribbon-like network as occurs during Golgi complex doubling for mitosis and during differentiation involving upregulated secretion. One hypothesis states that Golgi complex size is set by the abundance of secretory cargo and Golgi complex components that, through binding vesicle coat complexes, drive vesicle coat formation to alter Golgi complex influx and efflux. Regulation of transport factors controlling Golgi membrane traffic is also observed and may control Golgi complex size, but more work is needed to directly link these events to Golgi complex size regulation, especially during differentiation of specialized cell types.
JSJ-decompositions of knot and link complements in the 3-sphere
Creators: name: Budney, Ryan
Publisher: name: arXiv
Year: 2005
Subjects: subject: Geometric Topology (math.GT)
subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics
subject: 57M25; 57M50, 57M15

description: This paper is a survey of some of the most elementary consequences of the JSJ-decomposition and geometrization for knot and link complements in the 3-sphere. Formulated in the language of graphs, the result is the construction of a bijective correspondence between the isotopy classes of links in $S^3$ and a class of vertex-labelled, finite acyclic graphs, called companionship graphs. This construction can be thought of as a uniqueness theorem for Schubert's `satellite operations.' We identify precisely which graphs are companionship graphs of knots and links respectively. We also describe how a large family of operations on knots and links affects companionship graphs. This family of operations is called `splicing' and includes, among others, the operations of: cabling, connect-sum, Whitehead doubling and the deletion of a component.
description: 30 pages, 15 figures. V5: minor revision. Notes for V5: Fixed a typo in the statement of the Brunnian properties, and clarified a counter-intuitive convention that knots are considered `split' for the purposes of a theorem of Kanenobu
High-precision measurement of the proton's atomic mass
Creators: name: Heiße, Fabian
name: Köhler-Langes, Florian
name: Rau, Sascha
name: Hou, Jamin
name: Junck, Sven
name: Kracke, Anke
name: Mooser, Andreas
name: Quint, Wolfgang
name: Ulmer, Stefan
name: Werth, Günter
name: Blaum, Klaus
name: Sturm, Sven
Publisher: name: arXiv
Year: 2017
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We report on the precise measurement of the atomic mass of a single proton with a purpose-built Penning-trap system. With a precision of 32 parts-per-trillion our result not only improves on the current CODATA literature value by a factor of three, but also disagrees with it at a level of about 3 standard deviations.
Geometry and covariance of symmetric teleparallel theories of gravity
Creators: name: Blixt, Daniel
name: Golovnev, Alexey
name: Guzman, Maria-Jose
name: Maksyutov, Ramazan
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present the geometric foundations and derivations of equations of motion for symmetric teleparallel theories of gravity in the coincident gauge and covariant frameworks. We discuss the theoretical challenges introduced by the auxiliary fields responsible for the covariantisation procedure. We elucidate a tetradic structure interpretation behind this covariant formulation. Regarding the effect of covariantisation at the level of the equations of motion, we explicitly show that the only physical change, in case of setting an arbitrary energy-momentum tensor to the right hand side, resides in the requirement of the fulfillment of the covariant conservation laws. Also, we have explicitly introduced the fundamental covariantly-conserved teleparallel tetrad for the symmetric teleparallel frameworks.
description: minor amendments; 19 pages
Sarcocornia fruticosa A. J. Scott
Creators: name: Jarvis, Charlie
Publisher: name: Linnaean Society of London in association with the Natural History Museum
Year: 2007
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Caryophyllales
Amaranthaceae
Sarcocornia
Sarcocornia fruticosa

description: Salicornia fruticosa (Linnaeus) Linnaeus, Species Plantarum, ed. 2, 1: 5. 1762.
"Habitat in Europae maritimis." RCN: 25.
 Basionym: Salicornia europaea L. var. fruticosa L. (1753).
Lectotype (designated here by Ball): Herb. Burser XVI(2): 22, right specimen (UPS).
 Current name:  Sarcocornia fruticosa  (L.) A.J. Scott (Chenopodiaceae).
description: Published as part of Jarvis, Charlie, 2007, Chapter 7: Linnaean Plant Names and their Types (part S), pp. 806-877 in Order out of Chaos. Linnaean Plant Types and their Types, London :Linnaean Society of London in association with the Natural History Museum on page 807, DOI: 10.5281/zenodo.291971
Irmgard Scheitler, "Deutschsprachige Oratorienlibretti. Von den Anfängen bis 1730", Paderborn 2005
Creators: name: Schrammek, Bernhard
Publisher: name: Jahrbuch Ständige Konferenz Mitteldeutsche Barockmusik
Year: 2018

description: Jahrbuch Ständige Konferenz Mitteldeutsche Barockmusik, Bd. 7 (2006): Jahrbuch 2005: Musikgeschichte im Zeichen der Reformation
Lycopodium clavatum Linnaeus 1753
Creators: name: Jarvis, Charlie
Publisher: name: Linnaean Society of London in association with the Natural History Museum
Year: 2007
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Lycopodiopsida
Lycopodiales
Lycopodiaceae
Lycopodium
Lycopodium clavatum

description: Lycopodium clavatum Linnaeus, Species Plantarum 2: 1101. 1753.
"Habitat in Europae sylvis muscosis." RCN: 7963.
 Lectotype (Jonsell & Jarvis in Jarvis & al., Regnum Veg. 127: 63. 1993): Herb. Burser XX: 49 (UPS).
 Generitype of Lycopodium Linnaeus (vide Britton & Brown, Ill. Fl. N. U. S., ed. 2, 1:43. 1913).
 Current name: Lycopodium clavatum L. (Lycopodiaceae).
 Note: Proctor (in Howard, Fl. Lesser Antilles 2: 31. 1977) indicated 1257.2 (LINN) as type, but this is a post-1753 addition to the herbarium and not original material for the name. Although Schelpe & Anthony (in Leistner, Fl. Southern Africa, Pteridophyta: 1. 1986) stated "Type:...?Hort. Sicc. Cliff. (?BM, holo)", it is not clear that these authors accepted Clifford material as the type so this is ineffective (Art. 7.11). Jonsell & Jarvis (in Nordic J. Bot. 14: 147. 1994) provide a brief explanation of their earlier (1993) formal type choice.
description: Published as part of Jarvis, Charlie, 2007, Chapter 7: Linnaean Plant Names and their Types (part L), pp. 610-650 in Order out of Chaos. Linnaean Plant Types and their Types, London :Linnaean Society of London in association with the Natural History Museum on pages 646-647, DOI: 10.5281/zenodo.291971
Ion correlation driven like-charge attraction in multivalent salt solutions
Creators: name: Agrawal, Nikhil R.
name: Kaur, Ravtej
name: Carraro, Carlo
name: Wang, Rui
Publisher: name: arXiv
Year: 2023
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: The electrostatic double layer force is key to determining the stability and self-assembly of charged colloids and many other soft matter systems. Fully understanding the attractive force between two like-charged surfaces remains a great challenge. Here we apply the modified Gaussian renormalized fluctuation theory to study ion correlation-driven like-charge attraction in multivalent salt solutions. The effects of spatially varying ion correlations on the structure of overlapping double layers and their free energy are self-consistently accounted for. In the presence of multivalent salts, increasing surface charge or counterion valency leads to a short-range attraction. We demonstrate that although both overcharging and like-charge attraction are outcomes of ion correlation, there is no causal relationship between them. Our theory also captures the non-monotonic dependence of like-charge attraction on multivalent salt concentration. The reduction of attraction at high salt concentrations could be a contributing factor towards the reentrant stability of charged colloidal suspensions. Our theoretical predictions are consistent with the observations reported in experiments and simulations.
Mrk 421, Mrk 501, and 1ES 1426+428 at 100 GeV with the CELESTE Cherenkov Telescope
Creators: name: Smith, D. A.
name: Brion, E.
name: Britto, R.
name: Bruel, P.
name: Gordo, J. Bussons
name: Dumora, D.
name: Durand, E.
name: Eschstruth, P.
name: Espigat, P.
name: Holder, J.
name: Jacholkowska, A.
name: Lavalle, J.
name: Gallou, R. Le
name: Lott, B.
name: Manseri, H.
name: Munz, F.
name: Nuss, E.
name: Piron, F.
name: Rannot, R. C.
name: Reposeur, T.
name: Sako, T.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have measured the gamma-ray fluxes of the blazars Mrk 421 and Mrk 501 in the energy range between 50 and 350 GeV (1.2 to 8.3 x 10^25 Hz). The detector, called CELESTE, used first 40, then 53 heliostats of the former solar facility "Themis" in the French Pyrenees to collect Cherenkov light generated in atmospheric particle cascades. The signal from Mrk 421 is often strong. We compare its flux with previously published multi-wavelength studies and infer that we are straddling the high energy peak of the spectral energy distribution. The signal from Mrk 501 in 2000 was weak (3.4 sigma). We obtain an upper limit on the flux from 1ES 1426+428 of less than half that of the Crab flux near 100 GeV. The data analysis and understanding of systematic biases have improved compared to previous work, increasing the detector's sensitivity.
description: 15 pages, 14 figures, accepted to A&A (July 2006) August 19 -- corrected error in author list
Limiting temperature from a parton gas with power-law tailed distribution
Creators: name: Biro, T. S.
name: Peshier, A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We combine Tsallis distributed massless partons to an effective thermal prehadron spectrum by folding. A limiting temperature and a mass spectrum combined of three exponentials emerge from this procedure. Meson and baryon resonance spectra have different polynomial prefactors.
description: 4 pages, 2 figures, revtex4 style, v2 more references
Computing with dendrodendritic synapses in the olfactory bulb.
Creators: name: Urban, Nathan
name: Arevian, Armen C.
Publisher: name: Carnegie Mellon University
Year: 2009
Subjects: subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences

description: Decades of work in vivo and in vitro have provided a wealth of data on the properties of the reciprocal dendrodendritic synapses that connect olfactory bulb mitral and granule cells. However, hypotheses about the function of these connections have changed relatively little. These synapses are believed to mediate recurrent and lateral inhibition and thus, by analogy with lateral inhibition in other systems, have been proposed to play a role in sharpening mitral cell receptive fields and in generating oscillatory spiking in mitral cells. This description is likely to be partially accurate, but is likely to be a rather simplified and incomplete account of the function of these connections. In particular, current hypotheses about the function of dendrodendritic circuits do not account for some of the unusual features of reciprocal synapses that may allow olfactory bulb circuits to perform special functions. Here we review recent work on the physiology and function of olfactory bulb circuits and try to link the physiological properties of reciprocal synapses particular computations that the olfactory bulb may perform.
Solution Map Analysis of a Multiscale Drift-Diffusion Model for Organic Solar Cells
Creators: name: Verri, Maurizio
name: Porro, Matteo
name: Sacco, Riccardo
name: Salsa, Sandro
Publisher: name: arXiv
Year: 2017
Subjects: subject: Applied Physics (physics.app-ph)
subject: Functional Analysis (math.FA)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: In this article we address the theoretical study of a multiscale drift-diffusion (DD) model for the description of photoconversion mechanisms in organic solar cells. The multiscale nature of the formulation is based on the co-presence of light absorption, conversion and diffusion phenomena that occur in the three-dimensional material bulk, of charge photoconversion phenomena that occur at the two-dimensional material interface separating acceptor and donor material phases, and of charge separation and subsequent charge transport in each three-dimensional material phase to device terminals that are driven by drift and diffusion electrical forces. The model accounts for the nonlinear interaction among four species: excitons, polarons, electrons and holes, and allows to quantitatively predict the electrical current collected at the device contacts of the cell. Existence and uniqueness of weak solutions of the DD system, as well as nonnegativity of all species concentrations, are proved in the stationary regime via a solution map that is a variant of the Gummel iteration commonly used in the treatment of the DD model for inorganic semiconductors. The results are established upon assuming suitable restrictions on the data and some regularity property on the mixed boundary value problem for the Poisson equation. The theoretical conclusions are numerically validated on the simulation of three-dimensional problems characterized by realistic values of the physical parameters.
Ständige Konferenz Mitteldeutsche Barockmusik
Creators: name: Konrad, Claudia
Publisher: name: Jahrbuch Ständige Konferenz Mitteldeutsche Barockmusik
Year: 2018

description: Jahrbuch Ständige Konferenz Mitteldeutsche Barockmusik, Bd. 7 (2006): Jahrbuch 2005: Musikgeschichte im Zeichen der Reformation
The effect of charcoal production In Middle Shabelle Region.
Creators: name: Omar, Salah Abdi
Publisher: name: Zenodo
Year: 2025
Subjects: The effect of charcoal production In Middle Shabelle Region
The effect of charcoal production
In Middle Shabelle Region

description: ABSTRACT

 The main focus of this study was to investigate the effect of charcoal trade on Somali environment case study in Middle Shebelle Jowhar district. Background of the study, since the 1970s, charcoal was one of Somalia’s principal exports, along with livestock, hides and bananas. Charcoal and firewood are the primary sources of energy for the majority of households in Somalia and charcoal production provides a considerable amount of employment in rural areas.

Whereas forests represented about 13 percent of Somalia’s land area in 1990, they only covered about 10.7 percent in 2010, with signs for accelerating deforestation rates in recent years. Special objectives of this study were firstly to investigate the effect of charcoal trade on Somali environment, secondly to determine the level of charcoal trade in Somalia and finally to establish awareness of charcoal trade

in Somalia. Methodology of this study was collected primary data using questionnaire as a research instrument. Descriptive designs and cross sectional were used. This study targeted a population 70 and selected 60 respondents as sample. The researchers were concluded the extensive cutting of tree species for charcoal resulted in undesirable ecological consequences. Proper regulation and control of forest resources would help reduction and survival of vegetation cover on the environment. Result, the demographically most of the respondents were aged 21–30 years with 38.3%), male with (55%), married with 50%, and by education were non-educated with 50%. The researchers were recommended the following, capacity building and empowerment of communities to take full responsibility of managing their environmental resources. And multi-stakeholder collaboration in prevention of uncontrolled harvesting of lives trees and indiscriminate destruction of natural forest in order to conserve the environment.
Primordial black hole detection through diffractive microlensing
Creators: name: Naderi, T.
name: Mehrabi, A.
name: Rahvar, S.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Recent observations of gravitational waves motivate investigations for the existence of Primordial Black Holes (PBHs). We propose the observation of gravitational microlensing of distant quasars for the range of infrared to the submillimeter wavelengths by sub-lunar PBHs as lenses. The advantage of observations in the longer wavelengths, comparable to the Schwarzschild radius of the lens (i.e. $R_{\rm sch}\simeq λ$) is the detection of the wave optics features of the gravitational microlensing. The observation of diffraction pattern in the microlensing light curve of a quasar can break the degeneracy between the lens parameters and determine directly the lens mass as well as the distance of the lens from the observer. We estimate the wave optics optical-depth, also calculate the rate of $\sim 0.1$ to $\sim 0.3$ event per year per a quasar, assuming that hundred percent of dark matter is made of sub-lunar PBHs. Also, we propose a long-term survey of quasars with the cadence of almost one hour to few days to resolve the wave optics features of the light curves to discover PBHs and determine the fraction of dark matter made of sub-lunar PBHs as well as their mass function.
description: Accepted for publication in PRD
Topology of spaces of knots in dimension 3
Creators: name: Budney, Ryan
Publisher: name: arXiv
Year: 2005
Subjects: subject: Geometric Topology (math.GT)
subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics
subject: 57R40, 57M25, 57M50, 57P48, 57R50

description: This paper is a computation of the homotopy type of K, the space of long knots in R^3, the same space of knots studied by Vassiliev via singularity theory. Each component of K corresponds to an isotopy class of long knot, and we `enumerate' the components via the companionship trees associated to the knot. The knots with the simplest companionship trees are: the unknot, torus knots, and hyperbolic knots. The homotopy-type of these components of K were computed by Hatcher. In the case the companionship tree has height, we give a fibre-bundle description of those components of K, recursively, in terms of the homotopy types of `simpler' components of K, in the sense that they correspond to knots with shorter companionship trees. The primary case studied in this paper is the case of a knot which has a hyperbolic manifold contained in the JSJ-decomposition of its complement.
description: 22 pages, 16 figures
Carrier and Nerve Theorems in the Extension Theory
Creators: name: Nagórko, Andrzej
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Topology (math.GN)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 54C20 (Primary) 54F45, 55P10 (Secondary)

description: We show that a regular cover of a general topological space provides structure similar to a triangulation. In this general setting we define analogues of simplicial maps and prove their existence and uniqueness up to homotopy. As an application we give simple proofs of sharpened versions of nerve theorems of K. Borsuk and A. Weil, which state that the nerve of a regular cover is homotopy equivalent to the underlying space. Next we prove a nerve theorem for a class of spaces with uniformly bounded extension dimension. In particular we prove that the canonical map from a separable metric n-dimensional space into the nerve of its weakly regular open cover induces isomorphisms on homotopy groups of dimensions less than n.
description: 8 pages, update to the printed version
Falsifying cosmological models based on a non-linear electrodynamics
Creators: name: Övgün, Ali
name: Leon, Genly
name: Magaña, Juan
name: Jusufi, Kimet
Publisher: name: arXiv
Year: 2017
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Recently, the nonlinear electrodynamics (NED) has been gaining attention to generate primordial magnetic fields in the Universe and also to resolve singularity problems. Moreover, recent works have shown the crucial role of the NED on the inflation. This paper provides a new approach based on a new model of NED as a source of gravitation to remove the cosmic singularity at the big bang and explain the cosmic acceleration during the inflation era on the background of stochastic magnetic field. Also, we found a realization of a cyclic Universe, free of initial singularity, due to the proposed NED energy density. In addition, we explore whether a NED field without or with matter can be the origin of the late-time acceleration. For this we obtain explicit equations for $H(z)$ and perform a MCMC analysis to constrain the NED parameters by using $31$ observational Hubble data (OHD) obtained from cosmic chronometers covering the redshift range $0 < z < 1.97$; and with the joint-light-analysis (JLA) SNIa compilation consisting in $740$ data points in the range $0.01
description: 20 pages, two-column, 14 figures. Accepted for publication in the European Physical Journal C
Constraining the Woods-Saxon potential in fusion reactions based on the neural network
Creators: name: Gao, Zepeng
name: Liu, Siyu
name: Wen, Peiwei
name: Liao, Zehong
name: Yang, Yu
name: Su, Jun
name: Wang, Yongjia
name: Zhu, Long
Publisher: name: arXiv
Year: 2023
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The accurate determination of the nuclear interaction potential is essential for predicting the fusion cross sections and understanding the reaction mechanism, which plays an important role in the synthesis of superheavy elements. In this work, the neural network, which combines with the calculations of the fusion cross sections via the Hill-Wheeler formula, is developed to optimize the parameters of the Woods-Saxon potential by comparing the experimental values. The correlations between the parameters of Woods-Saxon potential and the reaction partners, which can be quantitatively fitted to a sigmoid-like function with the mass numbers, have been displayed manifestly for the first time. This study could promote the accurate estimation of nucleus-nucleus interaction potential in low energy heavy-ion collisions.
description: 6 pages, 5 figures
Salix alba subsp. alba Linnaeus 1753
Creators: name: Jarvis, Charlie
Publisher: name: Linnaean Society of London in association with the Natural History Museum
Year: 2007
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Malpighiales
Salicaceae
Salix
Salix alba
Salix alba l. subsp. alba

description: Salix alba Linnaeus, Species Plantarum 2: 1021. 1753, typ. cons.
"Habitat ad pagos & urbes Europae." RCN: 7387.
 Conserved type (Groendijk-Wilders & al. in Taxon 37: 166, f. 1. 1988): Herb. Burser XXIV: 104 (UPS).
 Generitype of Salix Linnaeus, nom. cons.
 Current name:  Salix alba  L. subsp.  alba  (Salicaceae).
 Note: Salix alba, with the type designated by Groendijk-Wilders & al., was proposed as conserved type of the genus by Jarvis (in Taxon 41: 573. 1992). This was eventually approved by the General Committee (see review of the history of this proposal by Barrie, l.c. 55: 795-796. 2006).
description: Published as part of Jarvis, Charlie, 2007, Chapter 7: Linnaean Plant Names and their Types (part S), pp. 806-877 in Order out of Chaos. Linnaean Plant Types and their Types, London :Linnaean Society of London in association with the Natural History Museum on page 808, DOI: 10.5281/zenodo.291971
How to Create Google Scholar Profile
Creators: name: Primayana, Kadek Hengki
Publisher: name: Zenodo
Year: 2020

description: Google Scholar adalah Mesin pencari literatur dan publikasi ilmiah yang mudah dan handal. Outline dari materi ini: Pendahuluan, Mengakses Google Scholar, Login ke Google Scholar, Mengisi Profil Google Scholar, Menambah Artikel, Mengedit Data Artikel, Meghapus Artikel, Mengedit Profil, Mencari dan Menampilkan Profil
Natural hypothalamic circuit dynamics underlying object memorization.
Creators: name: Kosse, Christin
name: Burdakov, Denis
Publisher: name: The Francis Crick Institute
Year: 2020
Subjects: subject: Neurosciences
subject: FOS: Clinical medicine
subject: Imaging
subject: Microfabrication & Bioengineering
subject: Ecology,Evolution & Ethology
subject: Metabolism
subject: Computational & Systems Biology

description: Brain signals that govern memory formation remain incompletely identified. The hypothalamus is implicated in memory disorders, but how its rapidly changing activity shapes memorization is unknown. During encounters with objects, hypothalamic melanin-concentrating hormone (MCH) neurons emit brief signals that reflect object novelty. Here we show that targeted optogenetic silencing of these signals, performed selectively during the initial object encounters (i.e. memory acquisition), prevents future recognition of the objects. We identify an upstream inhibitory microcircuit from hypothalamic GAD65 neurons to MCH neurons, which constrains the memory-promoting MCH cell bursts. Finally, we demonstrate that silencing the GAD65 cells during object memory acquisition improves future object recognition through MCH-receptor-dependent pathways. These results provide causal evidence that object-associated signals in genetically distinct but interconnected hypothalamic neurons differentially control whether the brain forms object memories. This gating of memory formation by hypothalamic activity establishes appropriate behavioral responses to novel and familiar objects.
The potential of tracing the star formation history with HI 21-cm in intervening absorption systems
Creators: name: Curran, S. J.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Unlike the neutral gas density, which remains largely constant over redshifts of 0 < z < 5, the star formation density exhibits a strong redshift dependence, increasing from the present day before peaking at a redshift of z ~ 2.5. Thus, there is a stark contrast between the star formation rate and the abundance of raw material available to fuel it. However, using the ratio of the strength of the HI 21-cm absorption to the total neutral gas column density to quantify the spin temperature of the gas, it has recently been shown that its reciprocal may trace the star formation density. This would be expected on the grounds that the cloud of gas must be sufficiently cool to collapse under its own gravity. This, however, relies on very limited data and so here we explore the potential of applying the above method to absorbers for which individual column densities are not available (primarily MgII absorption systems). By using the mean value as a proxy to the column density of the gas at a given redshift, we do, again, find that 1/T (degenerate with the absorber-emitter size ratio) traces the SF density. If confirmed by higher redshift data, this could offer a powerful tool for future surveys for cool gas throughout the Universe with the Square Kilometre Array.
description: Accepted by A&A
A catalog of rotational and radial velocities for evolved stars. IV. Metal-poor stars
Creators: name: De Medeiros, J. R.
name: Silva, J. R. P.
name: Nascimento, J. D. Jr. do
name: Martins, B. L. Canto
name: da Silva, L.
name: Melo, C.
name: Burnet, M.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The present paper describes the first results of an observational program intended to refine and extend the existing vsini measurements of metal-poor stars, with anemphasis on field evolved stars. The survey was carried out with the FEROS and CORALIE spectrometers. For the vsini measurements, obtained from spectral synthesis, we estimate an uncertainty of about 2.0 km/s. Precise rotational velocities vsini are presented for a large sample of 100 metal-poor stars, most of them evolving off the main-sequence. For the large majority of the stars composing the present sample, rotational velocities have been measured for the first time.
description: 5 pages, 1 Postscript figures, accepted for publication in the A&A
Saccharum officinarum Linnaeus 1753
Creators: name: Jarvis, Charlie
Publisher: name: Linnaean Society of London in association with the Natural History Museum
Year: 2007
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Liliopsida
Poales
Poaceae
Saccharum
Saccharum officinarum

description: Saccharum officinarum Linnaeus, Species Plantarum 1: 54. 1753.
"Habitat in Indiae utriusque locis inundatis." RCN: 453.
 Lectotype (Reveal & al. in Taxon 38: 96. 1989): [icon] " Arundo saccharifera C. B. " in Sloane, Voy. Jamaica 1: 108, t. 66. 1707. - Typotype: Herb. Sloane 2: 14 (BM-SL).
 Generitype of Saccharum Linnaeus (vide Hitchcock, Prop. Brit. Bot.: 119. 1929).
 Current name:  Saccharum officinarum  L. (Poaceae).
 Note: As has been noted by Barrie & al. (in Taxon 41: 511. 1992), the typification made by Reveal & al. is pre-dated by the competing choice of Sherif & Siddiqi (in El-Gadi, Fl. Libya 145: 328. 1988), who chose 77.2 (LINN), a specimen of Miscanthus floridulus (Labill.) Warb, ex Schum. & Lander. It appears that a conservation proposal may be necessary but in the meantime, Art. 57.1 applies, and no change in the application of the name should occur.
description: Published as part of Jarvis, Charlie, 2007, Chapter 7: Linnaean Plant Names and their Types (part S), pp. 806-877 in Order out of Chaos. Linnaean Plant Types and their Types, London :Linnaean Society of London in association with the Natural History Museum on page 806, DOI: 10.5281/zenodo.291971
Localised Dynamics in the Floquet Quantum East Model
Creators: name: Bertini, Bruno
name: Kos, Pavel
name: Prosen, Tomaz
Publisher: name: arXiv
Year: 2023
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We introduce and study the discrete-time version of the Quantum East model, an interacting quantum spin chain inspired by simple kinetically constrained models of classical glasses. Previous work has established that its continuous-time counterpart displays a disorder-free localisation transition signalled by the appearance of an exponentially large (in the volume) family of non-thermal, localised eigenstates. Here we combine analytical and numerical approaches to show that: i) The transition persists for discrete times, in fact, it is present for any finite value of the time step apart from a zero measure set; ii) It is directly detected by following the non-equilibrium dynamics of the fully polarised state. Our findings imply that the transition is currently observable in state-of-the-art platforms for digital quantum simulation.
description: 6+7 pages; 4+6 figures; v2 as appears in PRL
On classical de Sitter and Minkowski solutions with intersecting branes
Creators: name: Andriot, David
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Motivated by the connection of string theory to cosmology or particle physics, we study solutions of type II supergravities having a four-dimensional de Sitter or Minkowski space-time, with intersecting Dp-branes and orientifold Op-planes. Only few such solutions are known, and we aim at a better characterisation. Modulo a few restrictions, we prove that there exists no classical de Sitter solution for any combination of D3/O3 and D7/O7, while we derive interesting constraints for intersecting D5/O5 or D6/O6, or combinations of D4/O4 and D8/O8. Concerning classical Minkowski solutions, we understand some typical features, and propose a solution ansatz. Overall, a central information appears to be the way intersecting Dp/Op overlap each other, a point we focus on.
description: v2: few modifications, published version
Memorandum Regarding Development of Bilateral Relations
Creators: name: United States. Department Of State
Publisher: name: The University of Texas at Austin
Year: 1966
Subjects: Box 232 Folder 4
Box 232 Folder 04
Yugoslavia -- Politics and government -- 1945-1980
Yugoslavia -- Foreign relations -- 1945-1980 -- Soviet Union

description: Memorandum requesting appointment for Ambassador Elbrick.