cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Landscape ecology of microbes in peatlands under different management regimes
Creators: name: Allingham, Shaun
Publisher: name: College of Science and Engineering, University of Derby
Year: 2023

description: Peatlands are essential ecosystems that play a significant role in the sequestration of carbon, water provisioning and global biodiversity. However, human activities are threatening their ability to sustain important ecosystem services. Soil microbial activity supports ecosystem processes in peatlands, but little is known about the main drivers of microbial community dynamics and their association with ecosystem functioning. Therefore, to better forecast the response of the microbiome to management regimes, a deeper understanding is required. The overall goal of this thesis is to identify the environmental drivers of peatland soil microbial communities and to investigate the effects of land management on community composition, function and resistance to habitat change. The study was based on the analysis of a pre-existing data set on microbial communities regarding land reclamation in Canada and on original data collection and analysis regarding burning regimes at Moor House Nature Reserve, UK. The Canadian data were used to determine how microbial communities and function change along three natural fens and a constructed fen in the Athabasca oil sands region of Alberta and assess the impact of this reclamation practice. The UK research focused on investigating how prescribed burning affects soil properties, microbial community structure and microbial N-cycling using a range of approaches including next-generation sequencing and qPCR. Overall, results show first, total substrate respiration was significantly higher in the constructed fen, yet, the diversity of fungi and prokaryotes was higher in the treed-rich fen and community composition was significantly different between fens. However, prokaryote community composition was similar in the constructed fen to the treed-rich fen showing a resilience of the community to soil transfer. Second, there were changes in archaeal, bacterial and fungal diversity and community composition between burn treatments and soil profiles. Fungal diversity showed a more drastic change across burn treatments throughout the soil profile and there was also a shift in the relative abundance of trophic modes. Co-occurrence network analysis revealed that the non-burn topsoil had a larger and more complex network structure with more positive links than those under rotational burns. Third, amoA-AOA, amoA-AOB and nifH were higher in the topsoil of the non-burn control while the abundance of nirK was higher in plots under short rotation and long rotation regimes. ChiA abundance was greater in plots under a short rotation burn regime and decreased with soil depth. This result suggests that microbial N turnover potential is affected by the practice of burning. The changes in microbial communities and function are anticipated to have an impact on important peatland ecosystem services.
"fnl3832_ptavgexpystar_v23_fix_I1598460.tab.gz" of "Measurement of the triple-differential dijet cross section in proton-proton collisions at sqrt(s) = 8 TeV and constraints on parton distribution functions"
Creators: name: CMS Collaboration
Publisher: name: HEPData
Year: 2019

description: fastNLO interpolation grid calculated with NLOJet++ and providing LO & NLO pQCD predictions for a scale mu_0 = pTavg * exp(0.3y*) as used for Figure 4.1.
description: A measurement is presented of the triple-differential dijet cross section at a centre-of-mass energy of 8 TeV using 19.7 fb$^-1$ of data collected with the CMS detector in proton-proton collisions at the LHC. The cross section is measured as a function of the average transverse momentum, half the rapidity separation, and the boost of the two leading jets in the event. The cross section is corrected for detector effects and compared to calculations in perturbative quantum chromodynamics at next-to-leading order accuracy, complemented with electroweak and nonperturbative corrections. New constraints on parton distribution functions are obtained and the inferred value of the strong coupling constant is $\alpha_s(M_{Z})$ = 0.1199 $\pm$ 0.0015 (exp)$^{+0.0031}_{-0.0020}$ (theo), where M$_{Z}$ is the mass of the Z boson.
The red supergiant and supernova rate problems: implications for core-collapse supernova physics
Creators: name: Horiuchi, Shunsaku
name: Nakamura, Ko
name: Takiwaki, Tomoya
name: Kotake, Kei
name: Tanaka, Masaomi
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Mapping supernovae to their progenitors is fundamental to understanding the collapse of massive stars. We investigate the red supergiant problem, which concerns why red supergiants with masses $\sim16$-$30 M_\odot$ have not been identified as progenitors of Type IIP supernovae, and the supernova rate problem, which concerns why the observed cosmic supernova rate is smaller than the observed cosmic star formation rate. We find key physics to solving these in the compactness parameter, which characterizes the density structure of the progenitor. If massive stars with compactness above $ξ_{2.5} \sim 0.2$ fail to produce canonical supernovae, (i) stars in the mass range $16$-$30 M_\odot$ populate an island of stars that have high $ξ_{2.5}$ and do not produce canonical supernovae, and (ii) the fraction of such stars is consistent with the missing fraction of supernovae relative to star formation. We support this scenario with a series of two- and three-dimensional radiation hydrodynamics core-collapse simulations. Using more than 300 progenitors covering initial masses $10.8$-$75 M_\odot$ and three initial metallicities, we show that high compactness is conducive to failed explosions. We then argue that a critical compactness of $\sim 0.2$ as the divide between successful and failed explosions is consistent with state-of-the-art three-dimensional core-collapse simulations. Our study implies that numerical simulations of core collapse need not produce robust explosions in a significant fraction of compact massive star initial conditions.
description: 5 pages, 4 figures, published in MNRAS
Additional file 1 of Perceptions and factors associated with the uptake of the community client-led antiretroviral therapy delivery model (CCLAD) at a large urban clinic in Uganda: a mixed methods study
Creators: name: Walusaga, Happy Annet Gasaatura
name: Atuyambe, Lynn M
name: Muddu, Martin
name: Mpirirwe, Ruth
name: Nangendo, Joan
name: Kalibbala, Dennis
name: Semitala, Fred C.
name: Katahoire, Anne R.
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Environmental Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Science Policy

description: Supplementary Material 1
Exploring energy efficiency pathways for the Nigerian energy transition plan
Creators: name: Golobish, Sarah
name: Shari, Babajide E
name: Emmanuel, Victor
Publisher: name: Zenodo
Year: 2022
Subjects: Energy Efficiency
Nigeria power sector
Nigeria
Climate Compatible Growth
Nigeria transition plan
ClicSAND
Total energy demand

description: Poster for the 2022 Joint Summer School on Modelling Tools for Sustainable Development. This study explores the impact of energy efficiency on electricity demand, emissions, and system costs in the Nigerian power sector using OSeMOSYS and ClicSAND.
"fnl3832_ptmaxexpystar_v23_fix_I1598460.tab.gz" of "Measurement of the triple-differential dijet cross section in proton-proton collisions at sqrt(s) = 8 TeV and constraints on parton distribution functions"
Creators: name: CMS Collaboration
Publisher: name: HEPData
Year: 2019

description: fastNLO interpolation grid calculated with NLOJet++ and providing LO & NLO pQCD predictions for a scale mu_0 = pTmax * exp(0.3y*) as used for Figures 5-8 and for fits.
description: A measurement is presented of the triple-differential dijet cross section at a centre-of-mass energy of 8 TeV using 19.7 fb$^-1$ of data collected with the CMS detector in proton-proton collisions at the LHC. The cross section is measured as a function of the average transverse momentum, half the rapidity separation, and the boost of the two leading jets in the event. The cross section is corrected for detector effects and compared to calculations in perturbative quantum chromodynamics at next-to-leading order accuracy, complemented with electroweak and nonperturbative corrections. New constraints on parton distribution functions are obtained and the inferred value of the strong coupling constant is $\alpha_s(M_{Z})$ = 0.1199 $\pm$ 0.0015 (exp)$^{+0.0031}_{-0.0020}$ (theo), where M$_{Z}$ is the mass of the Z boson.
The effect of magnetic field on the intrinsic detection efficiency of superconducting single-photon detectors
Creators: name: Renema, J. J.
name: Rengelink, R. J.
name: Komen, I.
name: Wang, Q.
name: Gaudio, R.
name: Hoog, K. P. M. op 't
name: Zhou, Z.
name: Sahin, D.
name: Fiore, A.
name: Kes, P.
name: Aarts, J.
name: van Exter, M. P.
name: de Dood, M. J. A.
name: Driessen, E. F. C.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Instrumentation and Detectors (physics.ins-det)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We experimentally investigate the effect of a magnetic field on photon detection in superconducting single-photon detectors. At low fields, the effect of a magnetic field is through the direct modification of the quasiparticle density of states of the superconductor, and magnetic field and bias current are interchangable, as is expected for homogeneous dirty-limit superconductors. At the field where a first vortex enters the detector, the effect of the magnetic field is reduced, up until the point where the critical current of the detector starts to be determined by flux flow. From this field on, increasing the magnetic field does not alter the detection of photons anymore, whereas it does still change the rate of dark counts. This result points at an intrinsic difference in dark and light counts, and also shows that no enhancement of the intrinsic detection efficiency of a straight SSPD wire is achievable in a magnetic field.
Gauss-Bonnet assisted braneworld inflation in light of BICEP2 and Planck data
Creators: name: Neupane, Ishwaree P.
Publisher: name: arXiv
Year: 2014
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: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Motivated by the idea that quantum gravity corrections usually suppress the power of the scalar primordial spectrum (E-mode) more than the power of the tensor primordial spectrum (B-mode), in this paper we construct a concrete gravitational theory in five-dimensions for which $V(ϕ)\propto ϕ^n$-type inflation ($n\ge 1$) generates an appropriate tensor-to-scalar ratio that may be compatible with the BICEP2 and Planck data together. The true nature of gravity is five-dimensional and described by the action $S = \int d^5{x} \sqrt{|g|} M^3 (- 6λM^2 + R + αM^{-2} {\cal R}^2)$ where $M$ is the five-dimensional Planck mass and ${\cal R}^2=R^2-4 R_{ab} R^{ab} + R_{abcd} R^{abcd}$ is the Gauss-Bonnet (GB) term. The five-dimensional "bulk" spacetime is anti-de Sitter ($λ<0$) for which inflation ends naturally. The effects of ${\cal R}^2$ term on the magnitudes of scalar and tensor fluctuations and spectral indices are shown to be important at the energy scale of inflation. For GB-assisted $m^2ϕ^2$-inflation, inflationary constraints from BICEP2 and Planck, such as, $n_s\simeq 0.9603 (\pm 0.0073)$, $r=0.16 (+0.06-0.05)$ and $V_*^{1/4} \sim 1.5\times 10^{16} {\text GeV}$ are all satisfied for $ (-λα) \simeq (3-300)\times 10^{-5}$.
description: 5 pages, 4 figures, revtex4; v2: some additions to text in response to comments, published version
Numerical Solution of two dimensional coupled viscous Burgers Equation using the Modified Cubic B Spline Differential Quadrature Method
Creators: name: Shukla, H. S.
name: Tamsir, Mohammad
name: Srivastava, Vineet K.
name: Kumar, Jai
Publisher: name: arXiv
Year: 2014
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 65M70

description: In this paper, a numerical solution of the two dimensional nonlinear coupled viscous Burgers equation is discussed with the appropriate initial and boundary conditions using the modified cubic B spline differential quadrature method. In this method, the weighting coefficients are computed using the modified cubic B spline as a basis function in the differential quadrature method. Thus, the coupled Burgers equations are reduced into a system of ordinary differential equations (ODEs). An optimal five stage and fourth order strong stability preserving Runge Kutta scheme is applied to solve the resulting system of ODEs. The accuracy of the scheme is illustrated via two numerical examples. Computed results are compared with the exact solutions and other results available in the literature. Numerical results show that the MCB DQM is efficient and reliable scheme for solving the two dimensional coupled Burgers equation.
description: 15 pages, 3 figures
Multivariate extensions of the Golden-Thompson inequality
Creators: name: Hansen, Frank
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 47A63

description: We study concave trace functions of several operator variables and formulate and prove multivariate generalisations of the Golden-Thompson inequality. The obtained results imply that certain functionals in quantum statistical mechanics have bounds of the same form as they appear in classical physics.
description: Application in random matrix theory added
Horrocks Correspondence on ACM Varieties
Creators: name: Malaspina, F.
name: Rao, A. P.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: We describe a vector bundle $\sE$ on a smooth $n$-dimensional ACM variety in terms of its cohomological invariants $H^i_*(\sE)$, $1\leq i \leq n-1$, and certain graded modules of "socle elements" built from $\sE$. In this way we give a generalization of the Horrocks correspondence. We prove existence theorems where we construct vector bundles from these invariants and uniqueness theorems where we show that these data determine a bundle up to isomorphisms. The cases of the quadric hypersurface in $\mathbb P^{n+1}$ and the Veronese surface in $\mathbb P^5$ are considered in more detail.
description: 18 pages, not figures
Yapay Zekâ ile Mesleklerin Geleceği: ChatGPT Yapay Zekâ Sohbet Robotu Örneği
Creators: name: Aksu, Ferhat
Publisher: name: Zenodo
Year: 2024

description: Yapay Zekâ, 2023 yılı Ocak ayından itibaren hayatımıza daha derin bir şekilde nüfuz etmiştir. Bu tarihten önce de Yapay Zekâ, akademik ve teknolojik çevrelerde yoğun olarak tartışılan bir konu olmasına rağmen, genel kamuoyunda aynı derecede ilgi görmemiştir. ChatGPT'nin tanıtılması ve hızla yaygınlaşması, Yapay Zekâ kullanımında önemli bir dönüm noktası olmuştur. Bu yeni dönemde, Yapay Zekâ kullanıcı sayısının artması ve çeşitli Yapay Zekâ araçlarının tanıtılması ile birlikte, bireylerin Yapay Zekâ'yı tanıma ve anlama süreci hız kazanmıştır. Kullanıcılar, Yapay Zekâ'nın geleneksel bir arama motorundan çok farklı olduğunu, ChatGPT'nin ise bir sohbet robotundan daha fazlasını sunarak çeşitli işlevleri yerine getirebildiğini ve saatlerce insanlarla etkileşimde bulunabildiğini görmüşlerdir. Bu gelişmeler, Yapay Zekâ'nın yaşamımızda ne gibi değişikliklere yol açacağı ve bu değişikliklerin ne kadar hızlı gerçekleşeceği konusundaki tartışmaları alevlendirmiştir. Mesleklerin geleceği, işsizlik riskleri ve iş kollarında alınması gereken önlemler gibi konular, yoğun bir şekilde gündeme gelmiştir. Bilgisayar Mühendisleri ve yazılımcılar bile, kendi mesleklerinin geleceği hakkında endişe duymaya başlamışlardır. Bu çalışmada, yapay zekânın iş hayatında meydana getireceği değişikliklere yönelik bir analiz sunulmuştur. Bu kapsamda, öncelikle kapsamlı bir literatür taraması yapılmıştır. Ardından, ChatGPT yapay zekâ sohbet robotu kullanılarak yazılım, eğitim, veri analizi ve metin tashihi alanlarında dört uygulama gerçekleştirilmiştir. Yapılan bu örnekler üzerinden, yapay zekânın iş dünyasında yaratacağı dönüşümün boyutları ve hızı analiz edilerek sonuçlara ulaşılmaya çalışılmıştır.
Ein Open Access Monitor für die Schweiz
Creators: name: Stanzel, Franziska
name: Pollack, Philipp
Publisher: name: Zenodo
Year: 2022
Subjects: Open Access
Monitoring
OA-Transformation
digitale Infrastruktur
Big Data

description: Der Open Access Monitor Deutschland (OAM; gefördert vom BMBF, FKZ16OAMO001), betrieben von der Zentralbibliothek des Forschungszentrums Jülich, steht seit 2019 als frei zugängliche Anwendung zur Verfügung. Ein solches nationales Monitoring soll nun ebenfalls für die Schweiz etabliert werden. Im Auftrag des Konsortiums der Schweizer Hochschulbibliotheken (CSAL) hat das Team des Open Access Monitor Deutschland den OAM-CH entwickelt. Dabei stellt sich die Frage: Kann ein etabliertes System wie der OAM-DE für die Schweiz einfach geklont werden? So einfach ist es leider nicht. Durch die Kooperation mit einem bereits bestehenden System konnte zwar einiges an initialem Aufwand eingespart werden, es waren jedoch viele Anpassungswünsche zu berücksichtigen. Die Entwicklung des Schweizer Monitors und die dabei auftretenden Herausforderungen, wie die Integration der Schweizer Einrichtungen, eine Adaption der Darstellung von OA-Kategorien sowie Anpassungen am Frontend mitsamt den dadurch benötigten Änderungen am Ausgangssystem werden im Vortrag dargestellt. Damit die Realisierung des OAM-CH gelingen konnte, mussten im Vorfeld die Ziele der Kollaboration abgesteckt werden. Dabei wurden in einem kommunikativen Prozess die Bedürfnisse der Schweiz sowie die Grenzen und Möglichkeiten des OAM erörtert. Der entstandene Schweizer Monitor wird zusammen mit weiteren Entwicklungsmöglichkeiten vorgestellt, die bereits im OAM-DE umgesetzt sind. Abschließend werden aktuelle Projekte des OAM-DE vorgestellt wie beispielsweise die Anbindung von Datenquellen für einrichtungsbezogene Subskriptionskosten.
Gravity dual of spin and charge density waves
Creators: name: Jokela, Niko
name: Jarvinen, Matti
name: Lippert, Matthew
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: At high enough charge density, the homogeneous state of the D3-D7' model is unstable to fluctuations at nonzero momentum. We investigate the end point of this instability, finding a spatially modulated ground state, which is a charge and spin density wave. We analyze the phase structure of the model as a function of chemical potential and magnetic field and find the phase transition from the homogeneous state to be first order, with a second-order critical point at zero magnetic field.
description: 26 pages, 16 figures; v2: refs. fixed and added; v3: refs. and discussion added, published version
CÁC RÀO CẢN ĐỐI VỚI VĂN HÓA MỞ? Báo cáo của Creative Commons – 22/07/2022
Creators: name: Nghĩa, Lê Trung
Publisher: name: Zenodo
Year: 2023

description: Đây là bản dịch tài liệu 'BARRIERS TO OPEN CULTURE? A Report by Creative Commons - July 22, 2022' của Creative Commons, xuất bản tháng 7/2022. Bản gốc tiếng Anh có tại: https://creativecommons.org/wp-content/uploads/2022/07/3.Final-Barriers-Report_compressed.pdf.
Hyperparametric effects in a whispering-gallery mode rutile dielectric resonator at liquid helium temperatures
Creators: name: Nand, Nitin R.
name: Goryachev, Maxim
name: Floch, Jean-Michel Le
name: Creedon, Daniel L.
name: Tobar, Michael E.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We report the first observation of low power drive level sensitivity, hyperparametric amplification, and single-mode hyperparametric oscillations in a dielectric rutile whispering-gallery mode resonator at 4.2 K. The latter gives rise to a comb of sidebands at 19.756 GHz. Whereas, most frequency combs in the literature have been observed in optical systems using an ensemble of equally spaced modes in microresonators or fibers, the present work represents generation of a frequency comb using only a single-mode. The experimental observations are explained by an additional 1/2 degree-of-freedom originating from an intrinsic material nonlinearity at optical frequencies, which affects the microwave properties due to the extremely low loss of rutile. Using a model based on lumped circuits, we demonstrate that the resonance between the photonic and material 1/2 degree-of-freedom, is responsible for the hyperparametric energy transfer in the system.
description: 9 pages, 10 figures
Surface waves at an interface separating a saturated porous medium and a liquid
Creators: name: Edelman, Inna
name: Wilmański, Krzysztof
Publisher: name: Weierstrass Institute
Year: 1999
Subjects: subject: partial differential equations
subject: waves in porous media
subject: 35C20
subject: 35L50
subject: 73D20

description: Surface waves at an interface between a saturated porous medium and a liquid are investigated. Existence and peculiarities of surface wave propagation are revealed. Three types of surface waves are proven to be possible: true Stonely surface wave propagating almost without dispersion, leaky slow pseudo-Stonely wave, and leaky generalized Rayleigh wave. True Stonely and generalized Rayleigh waves correspond to those waves, which exist at a free interface of a saturated porous medium with vacuum.
Local state space reduction of multi-scale systems
Creators: name: Handrock-Meyer, Sybille
name: Schneider, Klaus R.
Publisher: name: Weierstrass Institute
Year: 1999
Subjects: subject: state space reduction
subject: multi-scale systems
subject: singularly perturbed systems
subject: reaction kinetics
subject: 34E15
subject: 92E20

description: Modelling reaction kinetics in a homogeneous medium usually leads to stiff systems of ordinary differential equations the dimension of which can be large. A well-known approach to reduce the dimension of such systems is the quasi-steady state assumption (QSSA): the derivative of fast variables is assumed to be zero. This procedure requires some knowledge of the underlying chemistry, moreover the corresponding differential system must be explicitly given. In this paper we shall describe and justify a procedure for a local reduction of the dimension of state space which does not require chemical insight as well as an explicit knowledge of the system in a singularly perturbed form. The mathematical justification is based on the theory of invariant manifolds.
A posteriori error estimators for elliptic equations with discontinuous diffusion coefficients
Creators: name: Petzoldt, Martin
Publisher: name: Weierstrass Institute
Year: 1999
Subjects: subject: elliptic equations
subject: discontinuous diffusion coeffcients
subject: interface problems
subject: transmission problems
subject: singularities
subject: a posteriori error estimators
subject: robustness
subject: 65N30
subject: 65N15

description: We regard linear elliptic equations with discontinuous diffusion coefficients in two and three space dimension with varying boundary conditions. The problem is discretized with linear Finite Elements. We propose the treatment of the arising singularities within an adaptive procedure based on a posteriori error estimators. Within this concept no a priori data like the degree of the singularity is needed. We introduce the class of quasi-monotone distributed diffusion coefficients. Within this class an interpolation operator as well as a posteriori error estimators with bounds which are independend of the variation of the diffusion coefficients are derived. In numerical examples we confirm robustness of the error estimators and show that on adaptively refined meshes the reduction of the error is optimal with respect to the number of unknows.
Shape optimization in free boundary systems
Creators: name: Neittaanmäki, Pekka
name: Tiba, Dan
Publisher: name: Weierstrass Institute
Year: 1999
Subjects: subject: shape optimization
subject: mixed boundary conditions
subject: continuous boundaries
subject: 49J40
subject: 49Q10
subject: 35R35

description: We analyze existence results in constrained optimal design problems governed by variational inequalities of obstacle type. The main applications that we discuss concern the optimal packaging problem and the electrochemical machining process. Our assumptions, in order to obtain the existence of at least one optimal domain, are just boundedness and uniform continuity (the uniform segment property) for the boundaries of the unknown regions where the free boundary problems are defined. No restrictions on the dimension are imposed.
Genesis of Altmetrics or Article-level Metrics for Measuring Efficacy of Scholarly Communications: Current Perspectives
Creators: name: Das, Anup Kumar
name: Mishra, Sanjaya
Publisher: name: arXiv
Year: 2014
Subjects: subject: Digital Libraries (cs.DL)
subject: Information Retrieval (cs.IR)
subject: FOS: Computer and information sciences

description: The article-level metrics (ALMs) or altmetrics becomes a new trendsetter in recent times for measuring the impact of scientific publications and their social outreach to intended audiences. The popular social networks such as Facebook, Twitter, and Linkedin and social bookmarks such as Mendeley and CiteULike are nowadays widely used for communicating research to larger transnational audiences. In 2012, the San Francisco Declaration on Research Assessment got signed by the scientific and researchers communities across the world. This declaration has given preference to the ALM or altmetrics over traditional but faulty journal impact factor (JIF)-based assessment of career scientists. JIF does not consider impact or influence beyond citations count as this count reflected only through Thomson Reuters' Web of Science database. Furthermore, JIF provides indicator related to the journal, but not related to a published paper. Thus, altmetrics now becomes an alternative metrics for performance assessment of individual scientists and their contributed scholarly publications. This paper provides a glimpse of genesis of altmetrics in measuring efficacy of scholarly communications and highlights available altmetric tools and social platforms linking altmetric tools, which are widely used in deriving altmetric scores of scholarly publications. The paper thus argues for institutions and policy makers to pay more attention to altmetrics based indicators for evaluation purpose but cautions that proper safeguards and validations are needed before their adoption.
Scholar-led Publishing mit Wissenschaftsblogs. Ein Praxisbeispiel aus der Mediävistik
Creators: name: Gebert, Björn
Publisher: name: Zenodo
Year: 2022
Subjects: Diamond Open Access
Open Access
dynamic publishing
collected volume
blog
cooperative publishing

description: Presentation given as part of the workshop "Jenseits von DEAL - Kooperative Ansätze für die Open-Access-Transformation in den Sozial- und Geisteswissenschaften" on monday, 19 September 2022.
The SLUGGS survey: Globular cluster stellar population trends from weak absorption lines in stacked spectra
Creators: name: Usher, Christopher
name: Forbes, Duncan A.
name: Brodie, Jean P.
name: Romanowsky, Aaron J.
name: Strader, Jay
name: Conroy, Charlie
name: Foster, Caroline
name: Pastorello, Nicola
name: Pota, Vincenzo
name: Arnold, Jacob A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: As part of the SLUGGS survey, we stack 1137 Keck DEIMOS spectra of globular clusters from 10 galaxies to study their stellar populations in detail. The stacked spectra have median signal to noise ratios of $\sim 90$ Å$^{-1}$. Besides the calcium triplet, we study weaker sodium, magnesium, titanium and iron lines as well as the H$α$ and higher order Paschen hydrogen lines. In general, the stacked spectra are consistent with old ages and a Milky Way-like initial mass function. However, we see different metal line index strengths at fixed colour and magnitude, and differences in the calcium triplet--colour relation from galaxy to galaxy. We interpret this as strong evidence for variations in the globular cluster colour--metallicity relation between galaxies. Two possible explanations for the colour--metallicity relation variations are that the average ages of globular clusters vary from galaxy to galaxy or that the average abundances of light elements (i.e. He, C, N and O) differ between galaxies. Stacking spectra by magnitude, we see that the colours become redder and metal line indices stronger with brighter magnitudes. These trends are consistent with the previously reported `blue tilts' being mass--metallicity relations.
description: 25 pages, 12 figures, accepted for publication in the Monthly Notices of the Royal Astronomical Society
Compact chromium oxide thin film resistors for use in nanoscale quantum circuits
Creators: name: Nash, C. R.
name: Fenton, J. C.
name: Constantino, N. G. N.
name: Warburton, P. A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report on the electrical characterisation of a series of thin chromium oxide films, grown by dc sputtering, to evaluate their suitability for use as on-chip resistors in nanoelectronics. By increasing the level of oxygen doping, the room-temperature sheet resistance of the chromium oxide films was varied from 28$Ω/ \square$ to 32.6k$Ω/ \square$. The variation in resistance with cooling to 4.2K in liquid helium was investigated; the sheet resistance at 4.2K varied with composition from 65$Ω/ \square$ to above 20G$Ω/ \square$. All of the films measured displayed ohmic behaviour at all measured temperatures. For on-chip devices for quantum phase-slip measurements using niobium-silicon nanowires, interfaces between niobium-silicon and chromium oxide are required. By characterising the interface contact resistance, we found that a gold intermediate layer is favourable: the specfic contact resistivity of chromium-oxide-to-gold interfaces was 0.15 m$Ω$cm$^2$, much lower than the value for direct chromium-oxide to niobium-silicon interfaces, 65m$Ω$cm$^2$. We conclude that these chromium oxide films are suitable for use in nanoscale circuits as high-value resistors, with resistivity tunable by oxygen content.
A Review on the Effect of Heat Treatment on Mechanical and  Microstructural Properties of Steels
Creators: name: Ladejo, Samuel
name: Özdoğru, Samet
name: Şahbaz, Mehmet
Publisher: name: Zenodo
Year: 2024

description: This study is a review of studies that have investigated material changes as a result of heat treatment of the steel materials that are most commonly used in a wide range of applications. A summary is given of the steel material used in the studies, the heat treatment applied and the resultant changes in microstructure and corresponding changes in mechanical properties. It has been observed that heat treatments are applied at different temperatures and procedures to harden or soften the material. The cooling process of the material after heat treatment has also been reported in studies to affect the microstructure and mechanical properties. It has been observed that the growth of the grain structure reduces the mechanical properties, resulting in a decrease in strength and hardness values. It has also been determined that the phase transformations that occur depending on the cooling conditions of the material also affect the material properties. It has been observed that tensile, compression, flexure, impact and hardness tests are most commonly used to determine the mechanical properties of materials after heat treatment. It has been observed that optical and electron microscopes are used in the investigation of microstructural properties. In this literature review, many different heat treatments have been applied to many different types of steel and their results have been collected in a single study.
W gamma production in hadronic collisions using the POWHEG+MiNLO method
Creators: name: Barze, Luca
name: Chiesa, Mauro
name: Montagna, Guido
name: Nason, Paolo
name: Nicrosini, Oreste
name: Piccinini, Fulvio
name: Prosperi, Valeria
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We detail a calculation of W gamma production in hadronic collision, at Next-to-Leading Order (NLO) QCD interfaced to a shower generator according to the POWHEG prescription supplemented with the MiNLO procedure. The fixed order result is matched to an interleaved QCD+QED parton shower, in such a way that the contribution arising from hadron fragmentation into photons is fully modeled. In general, our calculation illustrates a new approach to the fully exclusive simulation of prompt photon production processes accurate at the NLO level in QCD. We compare our predictions to those of the NLO program MCFM, which treats the fragmentation contribution in terms of photon fragmentation functions. We also perform comparisons to available LHC data at 7 TeV, for which we observe good agreement, and provide phenomenological results for physics studies of the W gamma production process at the Run II of the LHC. The new tool, which includes W leptonic decays and the contribution of anomalous gauge couplings, allows a fully exclusive, hadron-level description of the W gamma process, and is publicly available at the repository of the POWHEG BOX. Our approach can be easily adapted to deal with other relevant isolated photon production processes in hadronic collisions.
description: 38 pages, 5 Tables, 9 Figures. Final version published in JHEP. Acknowledgments to Galileo Galilei Institute for Theoretical Physics and to INFN added
title: Оценка потребительского спроса как этап продвижения нового продукта
Creators: name: Амосенок, Валерия
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2022

description: Желание людей вести здоровый образ жизни привело к тому, что маркетологи и специалисты по рекламе, дабы не потерять своих клиентов и для продвижения своих продуктов, создали новые заголовки на этикетках изделий. В связи с ухудшением экологической обстановки в мире, исчерпывающей многие природные
ресурсы Земли, возрастает тенденция к экологичному образу жизни, выбору натуральных ингредиентов и сортировке мусора, что привело к такому ходу для увеличения продаж, как надпись «экологичная упаковка». Кондитерские изделия пользуются спросом у людей и при этом являются, как правило, одной из основных причин набора веса и проблем со здоровьем, потому что содержат много сахара, животных и растительных жиров, а также быстрых углеводов. Для расширения ассортимента полезных кондитерских изделий была
рассмотрена разработка рецептуры коржей для тортов, обогащенных бета-каротином.
Neue Standards braucht das Land - Neufassung der Qualitätsstandards für Bücher im goldenen Open Access
Creators: name: Schobert, Dagmar
name: Bargheer, Margo
Publisher: name: Zenodo
Year: 2022

description: Dies ist die Präsention zur Neufassung der Qualitätsstandards für Open-Access-Bücher, die Dagmar Schobert und Margo Bargheer während der Open-Access-Tage 2022 in Bern vorgestellt haben. Die Präsentation bezieht sich auf das entsprechende Dokument "Qualitätsstandards für Open-Access-Bücher", das die Arbeitsgemeinschaft der deutschprachigen Universitätsverlage (Community auf ZENODO) erarbeitet hat.
Effective Field Theory for Higgs Plus Jet Production
Creators: name: Dawson, S.
name: Lewis, I. M.
name: Zeng, Mao
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We use an effective field theory (EFT) which includes all possible gluon-Higgs dimension-5 and dimension-7 operators to study Higgs boson plus jet production in next-to-leading order QCD. The EFT sheds light on the effect of a finite top quark mass as well as any Beyond-the-Standard Model (BSM) modifications of Higgs-gluon effective couplings. In the gluon channel, the accuracy of the heavy-top approximation for differential distributions arises from the non-interference between the helicity amplitudes of the G^3 h and G^2 h operators in the m_h < p_T limit at lowest order. One dimension-7 operator involving quark bilinears, however, contributes significantly at high p_T, and potentially offers a channel for seeing BSM effects. One-loop renormalization of these operators is determined, allowing resummation of large logarithms via renormalization group running. NLO numerical results at the LHC are presented, which include O(1/m_t^2) contributions in the SM limit.
description: 45 pages, 12 figures, v2: minor changes/refs updated
Stochastic Lagrangian Models for Turbulent Dispersion in Atmospheric Boundary Layer
Creators: name: Kurbanmuradov, Orazgeldy
name: Sabelfeld, Karl
Publisher: name: Weierstrass Institute
Year: 1999
Subjects: subject: Horizontally homogeneous turbulence
subject: Lagrangian stochastic models
subject: well-mixed condition
subject: consistency principle
subject: uniqueness problem
subject: neutrally stratified surface layer.
subject: 65C05
subject: 76N20

description: A one-particle 3D stochastic Lagrangian model in for transport of particles in horizontally-homogeneous atmospheric surface laeyr with arbitrary one-point probability density function of Eulerian velocity uctuations is suggested. A uniquely defined Lagrangian stochastic model in the class of well-mixed models is constructed from physically plausible assumptions: (i) in the neutrally stratified horizontally homogeneous surface layer, the vertical motion is mainly controlled by eddies whose size is of order of the current height; and (ii), the streamwise drift term is independent of the crosswind velocity. Numerical simulations for neutral stratification have shown a good agreement of our model with the well known Thomson's model, with Flesch & Wilson's model, and with experimental measurements as well. However there is a discrepancy of these results with the results obtained by Reynolds' model.
TurkishBERT ile Youtube Yemek Tarifi Videolarındaki Yorumların  Duygusal Tonalitenin İncelenmesi
Creators: name: Ağduk, Sidar
name: Çelik, Furkan Yusuf
name: Aydemir, Emrah
Publisher: name: Zenodo
Year: 2024

description: Günümüzde iletişim teknolojileri, özellikle internet, bilgi paylaşımını ve erişimini sınırlamadan sağlayarak önemli bir rol oynamaktadır. Bu teknolojik gelişmeler, dijital platformlardaki veri çeşitliliğini artırmakta ve internet kullanıcılarını, deneyimledikleri ürün veya hizmetlere dair düşüncelerini çeşitli dijital mecralarda paylaşmaya teşvik etmektedir. Kullanıcılar tarafından paylaşılan bu veriler, özellikle işletmeler ve hizmet sağlayıcıları için müşteri deneyimini anlamak ve iyileştirmek adına önemli bir kaynak oluşturmaktadır. Duygu analizi, geleneksel veri toplama yöntemlerinin ötesine geçerek, doğal dil işleme tekniklerini kullanarak dijital platformlardaki büyük veri setlerini analiz eder. Bu analiz yöntemi, kullanıcıların duygusal eğilimlerini ve değişikliklerini tespit ederek, kullanıcı görüşlerini daha geniş bir perspektiften değerlendirme imkânı sunar. Bu bağlamda, duygu analizi, şirketlere ve işletmelere müşteri geribildirimlerini daha etkili bir şekilde değerlendirme ve müşteri deneyimini daha iyi anlama fırsatı sağlamaktadır. Çalışma, TurkishBERT dil modeli kullanılarak YouTube'da paylaşılan yemek tarifi videolarına yönelik 16,658 yorumun duygu analizini gerçekleştirmeyi amaçlamaktadır. Elde edilen sonuçlar, yorumların %61.47'sinin pozitif, %38.53'ünün negatif olduğunu göstermektedir. Yorum sayılarındaki yıllık değişim incelendiğinde, ilk üç yılın artış gösterdiği, ancak son iki yılda belirgin bir düşüş yaşandığı gözlemlenmiştir. Analiz edilen veri setinde, en yüksek frekansa sahip kelimeler dikkate alındığında, sırasıyla 3758 kez "oldu", 3652 kez "güzel" ve 2081 defa tekrar edilen "sağlık" kelimelerine rastlanmıştır. Bu sonuçlar, dil modellerinin kullanıcı görüşlerini anlamak ve içerik oluşturuculara rekabet avantajı sağlamak amacıyla etkili bir araç olabileceğini vurgulamaktadır.
On the density profile of dark matter substructure in gravitational lens galaxies
Creators: name: Vegetti, Simona
name: Vogelsberger, Mark
Publisher: name: arXiv
Year: 2014
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We consider three extensions of the Navarro, Frenk and White (NFW) profile and investigate the intrinsic degeneracies among the density profile parameters on the gravitational lensing effect of satellite galaxies on highly magnified Einstein rings. In particular, we find that the gravitational imaging technique can be used to exclude specific regions of the considered parameter space, and therefore, models that predict a large number of satellites in those regions. By comparing the lensing degeneracy with the intrinsic density profile degeneracies, we show that theoretical predictions based on fits that are dominated by the density profile at larger radii may significantly over- or underestimate the number of satellites that are detectable with gravitational lensing. Finally, using the previously reported detection of a satellite in the gravitational lens system JVAS B1938+666 as an example, we derive for this detected satellite values of r_max and v_max that are, for each considered profile, consistent within 1sigma with the parameters found for the luminous dwarf satellites of the Milky Way and with a mass density slope gamma < 1.6. We also find that the mass of the satellite within the Einstein radius as measured using gravitational lensing is stable against assumptions on the substructure profile. In the future thanks to the increased angular resolution of very long baseline interferometry at radio wavelengths and of the E-ELT in the optical we will be able to set tighter constraints on the number of allowed substructure profiles.
description: 6 pages, 2 figures. MNRAS accepted. Minor changes
A simple inductive approach to the problem of convergenceof cluster expansions of polymer models
Creators: name: Bovier, Anton
name: Zahradník, Miloš
Publisher: name: Weierstrass Institute
Year: 1999
Subjects: subject: cluster expansion
subject: Taylor expansion
subject: Mayer expansion
subject: polymer models
subject: 82B20
subject: 82B26

description: We explain a simple inductive method for the analysis of the convergence of cluster expansions (Taylor expansions, Mayer expansions) for the partition functions of "polymer models". We give a very simple proof of the "Dobrushin-Kotecký-Preiss criterion" and formulate its generalization usable for situations where a successive expansion of the partition function has to be used.
Impact of assurance on the quality of voluntary environmental disclosures : an empirical analysis
Creators: name: Aw, Yong Ting.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author. Researchers can access this thesis by asking their local university, institution or public library to make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Determination of the Higgs CP mixing angle in the tau decay channels at the LHC including the Drell-Yan background
Creators: name: Berge, Stefan
name: Bernreuther, Werner
name: Kirchner, Sebastian
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We investigate how precisely the CP nature of the 125 GeV Higgs boson resonance h can be unraveled at the LHC in its decays to tau pairs. We use a method which allows to determine the scalar-pseudoscalar Higgs mixing angle in this decay mode. This mixing angle can be extracted from the distribution of a signed angle, which we analyze for the major charged-prong tau decays. For definiteness, we consider Higgs-boson production by gluon fusion at NLO QCD. We take into account also the irreducible background from Drell-Yan production at NLO QCD. We compute, for the signal and background reactions, angular and energy correlations of the charged prongs and analyze which type of cuts suppress the Drell-Yan background. An important feature of this background is that its contribution to the distribution of our observable is a flat line, also at NLO QCD. By separating the Drell-Yan events into two different sets, two different non-trivial distributions are obtained. Based on this observation we propose to use these sets for calibation purposes. By Monte Carlo simulation we study also the effect of measurement uncertainties on this distribution. We estimate that the Higgs mixing angle can be determined with our method to a precision of 14 degree (5 degree) at the high luminosity LHC (14 TeV) with an integrated luminosity of 500 inverse fb (3 inverse ab).
description: 27 pages, 11 figures, 1 table; journal version
Kozmik Işınlar: Temelleri ve Uygulamaları
Creators: name: Polatoğlu, Ahmet
Publisher: name: Zenodo
Year: 2024

description: Kozmik Işınlar (Cosmic Rays/CR), uzaydan gelen yüksek enerjili parçacıklar ve elektromanyetik radyasyon olarak tanımlanmaktadır. CR kaynakları, enerjileri, etkileri ve uygulamaları; bilim, teknoloji ve uzay araştırmaları için büyük bir öneme sahiptir. CR’nin orijini Güneş rüzgarları, büyük ölçüde süpernova patlamaları ve diğer kozmik olaylarla ilişkilendirilmektedir. Bu olaylar sırasında ortaya çıkan parçacıklar, yüksek hızlarda saçılmakta ve uzayın farklı bölgelerine ulaşmaktadır. CR çok yüksek enerjilere sahiptir. Elektromanyetik spektrumunda gama ışınlarından sonra geniş bir aralığı kapsamaktadır. CR’nin Dünya’ya etkileri atmosferle etkileşim yoluyla belirlenebilmektedir. Bu etkileşimler atmosferde yeni parçacıkların ve elektromanyetik radyasyonun serbest bırakılmasına neden olmaktadır. CR’nin birçok uygulama alanı mevcuttur. Bunlar arasında fizikte kozmik ışın dedektörleri, tıpta radyoterapi tedavisi ve astronomide uzay araştırmaları sayılabilir. CR, evrenin yapısını ve Dünya’yı anlamamız için önemli bir anahtardır. Bu nedenle, CR’lerle ilgili araştırmalar ve çalışmalar gelecekte daha da önem kazanacak gibi görünmektedir. Bu makalede keşfedildikleri günden bugüne kozmik ışınların temel özellikleri ve bu alandaki temel sorunlar ele alınarak konu genel bir çerçevede incelenmiştir. Ayrıca Parçacık fiziğinde çok büyük bir öneme sahip olan Geant4 simülasyon programı ile kozmik parçacıklar simüle edilmiştir.
On inhomogeneous velocity boundary conditions in the Förste model of a radiating, viscous, heat conducting fluid
Creators: name: Stoyan, Gisbert
Publisher: name: Weierstrass Institute
Year: 1999
Subjects: subject: Coupled system of Navier-Stokes equations
subject: heat conduction equation
subject: radiation intensity equation
subject: existence
subject: uniqueness
subject: solution growth in dependence on parameters
subject: 35J25

description: For the mathematical model of a three-dimensional flow of a radiating, viscous and heat conducting fluid due to J. Förste, we consider existence and uniqueness of weak solutions in case of inhomogeneous Dirichlet boundary conditions for the velocity, and in dependence on the physical parameters.