cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Chemical interdiffusion in Na-rich alkaline melts: insights from tephrite-phonolite couple experiments
Creators: name: González-García, Diego
name: Pohl, Florian
name: Krasheninnikov, Stepan P.
name: Beckmann, Philipp
name: Behrens, Harald
name: Holtz, François
Publisher: name: Deutsche Geologische Gesellschaft - Geologische Vereinigung e.V. (DGGV)
Year: 2022

description:
Although alkaline melts represent an important fraction of the magmatism in ocean islands, there is a lack of chemical diffusion data in such compositions. We present here the result of a series of interdiffusion experiments using natural tephritic and phonolitic melts from the Canary Islands as endmembers. Experiments were run in two internally heated pressure vessels at a pressure of 300 MPa, temperatures from 1150 to 1300°C, oxygen fugacity from NNO to approx. NNO+3, and water contents between 0.3 and 3.3 wt.%. Major element concentration-distance profiles were measured by electron microprobe and effective binary diffusion coefficients (D) were obtained by a modified Boltzmann-Matano analysis.

Results show a wide range of diffusivities for different cations, following the sequence Na >> Al > K Mg = Fe = Ca > Si > Ti. Na diffusivities are the fastest and are consistently 1 log unit above those of Si for a given experiment. Al diffusion is remarkably fast, falling ca. 0.4 log units above Si, an effect not observed before in diffusion studies. The relationships between log D and H2O content in melt for all cations are strongly non-linear and can be fitted by using an exponential function, with an apparent convergence in diffusion coefficients towards the water-rich end. Our results provide new data on chemical interdiffusion in Na-rich, highly alkaline melts and allow to test chemical controls of magma mixing in Tenerife, where banded pumices are common in several bimodal ignimbritic units.
Balancing building and maintenance costs in growing transport networks
Creators: name: Bottinelli, Arianna
name: Louf, Remi
name: Gherardi, Marco
Publisher: name: arXiv
Year: 2016
Subjects: subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: The costs associated to the length of links impose unavoidable constraints to the growth of natural and artificial transport networks. When future network developments can not be predicted, building and maintenance costs require competing minimization mechanisms, and can not be optimized simultaneously. Hereby, we study the interplay of building and maintenance costs and its impact on the growth of transportation networks through a non-equilibrium model of network growth. We show cost balance is a sufficient ingredient for the emergence of tradeoffs between the network's total length and transport effciency, of optimal strategies of construction, and of power-law temporal correlations in the growth history of the network. Analysis of empirical ant transport networks in the framework of this model suggests different ant species may adopt similar optimization strategies.
description: 4 pages main text, 2 pages references, 4 figures
Direct fabrication of three-dimensional buried conductive channels in single crystal diamond with ion microbeam induced graphitization
Creators: name: Olivero, P.
name: Amato, G.
name: Bellotti, F.
name: Budnyk, O.
name: Colombo, E.
name: Jaksic, M.
name: Giudice, A. Lo
name: Manfredotti, C.
name: Pastuovic, Z.
name: Picollo, F.
name: Skukan, N.
name: Vannoni, M.
name: Vittone, E.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report on a novel method for the fabrication of three-dimensional buried graphitic micropaths in single crystal diamond with the employment of focused MeV ions. The use of implantation masks with graded thickness at the sub-micrometer scale allows the formation of conductive channels which are embedded in the insulating matrix at controllable depths. In particular, the modulation of the channels depth at their endpoints allows the surface contacting of the channel terminations with no need of further fabrication stages. In the present work we describe the sample masking, which includes the deposition of semi spherical gold contacts on the sample surface, followed by MeV ion implantation. Because of the significant difference between the densities of pristine and amorphous or graphitized diamond, the formation of buried channels has a relevant mechanical effect on the diamond structure, causing localized surface swelling, which has been measured both with interferometric profilometry and atomic force microscopy. The electrical properties of the buried channels are then measured with a two point probe station: clear evidence is given that only the terminal points of the channels are electrically connected with the surface, while the rest of the channels extends below the surface. IV measurements are employed also to qualitatively investigate the electrical properties of the channels as a function of implantation fluence and annealing.
description: 27 pages, 10 figures
title: a_Ponte, bridging geosciences and society
Creators: name: Zambelli, Bárbara
name: Gantus, Talita
Publisher: name: Deutsche Geologische Gesellschaft - Geologische Vereinigung e.V. (DGGV)
Year: 2022

description:
Science is not good, not bad, or neutral. It is socially built by the subject who operates the research object based on subjectivity (individual and collective).The reduction of reality to a single narrative creates conflicts of interest and sustains games of knowledge and power, leading to a depoliticization of the scientific debate. Considering narrative dispute as being concrete and symbolic, geoscientific researchers must question themselves: our science supports which narrative? Whose interests does it serve? In the context of negationism (e.g. Flat-Earth movement), it is urgent to communicate and disseminate critical geoscientific knowledge, addressing socially relevant topics in accessible language, contributing to the public debate. On this ground, a_Ponte, an online collaborative platform, was born in 2019. With the aim of geoscientific outreach based on geoethical principles, the content produced and disseminated brings light to our role in the construction and management of the Earth System. Given this, a_Ponte exists as a means of circulating materials and ideas (as blog posts, magazines, online talks, training courses, and participation in podcasts and events) through a website (available in Portuguese, English and Spanish) and social media. The topics cover broad themes in geosciences from a decolonial perspective, drawing horizons outside the episteme of Eurocentric-colonial knowledge, questioning privileged spaces and geopolitical boundaries. After all, whoever dominates the discourse consequently possesses the world expressed and implied by it. Finally, it is expected that the actions proposed there promote a reflection on our role in building a more just, equitable and environmentally sustainable society.
The effects of supernovae on the dynamical evolution of binary stars and star clusters
Creators: name: Parker, Richard J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: In this chapter I review the effects of supernovae explosions on the dynamical evolution of (1) binary stars and (2) star clusters. (1) Supernovae in binaries can drastically alter the orbit of the system, sometimes disrupting it entirely, and are thought to be partially responsible for `runaway' massive stars - stars in the Galaxy with large peculiar velocities. The ejection of the lower-mass secondary component of a binary occurs often in the event of the more massive primary star exploding as a supernova. The orbital properties of binaries that contain massive stars mean that the observed velocities of runaway stars (10s - 100s km s$^{-1}$) are consistent with this scenario. (2) Star formation is an inherently inefficient process, and much of the potential in young star clusters remains in the form of gas. Supernovae can in principle expel this gas, which would drastically alter the dynamics of the cluster by unbinding the stars from the potential. However, recent numerical simulations, and observational evidence that gas-free clusters are observed to be bound, suggest that the effects of supernova explosions on the dynamics of star clusters are likely to be minimal.
description: 16 pages, to appear in the 'Handbook of Supernovae', eds. Paul Murdin and Athem Alsabti. This version replaces an earlier version that contained several typos
Effects of char structure and catalytic species on the gasification reactivity of Victorian brown coals
Creators: name: Li., Xiaojiang
Publisher: name: Monash University
Year: 2021

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.
Moment Matching Based Conjugacy Approximation for Bayesian Ranking and Selection
Creators: name: Zhang, Qiong
name: Song, Yongjia
Publisher: name: arXiv
Year: 2016
Subjects: subject: Computation (stat.CO)
subject: FOS: Computer and information sciences

description: We study the conjugacy approximation method in the context of Bayesian ranking and selection with unknown correlations. Under the assumption of normal-inverse-Wishart prior distribution, the posterior distribution remains a normal-inverse-Wishart distribution thanks to the conjugacy property when all alternatives are sampled at each step. However, this conjugacy property no longer holds if only one alternative is sampled at a time, an appropriate setting when there is a limited budget on the number of samples. We propose two new conjugacy approximation methods based on the idea of moment matching. Both of them yield closed-form Bayesian prior updating formulas. This updating formula can then be combined with the knowledge gradient algorithm under the "value of information" framework. We conduct computational experiments to show the superiority of the proposed conjugacy approximation methods, including applications in wind farm placement and computer model calibration.
Testing the two planes of satellites in the Centaurus Group
Creators: name: Müller, Oliver
name: Jerjen, Helmut
name: Pawlowski, Marcel S.
name: Binggeli, Bruno
Publisher: name: arXiv
Year: 2016
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The existence of satellite galaxy planes poses a major challenge for the standard picture of structure formation with non-baryonic dark matter. Recently Tully et al. (2015) reported the discovery of two almost parallel planes in the nearby Cen A group using mostly high-mass galaxies (M$_B$ $
description: 10 pages, 5 figures, accepted for publication in A&A
On the rich magnetic phase diagram of (Ni, Co)-Mn-Sn Heusler alloys
Creators: name: Grünebohm, Anna
name: Herper, Heike C.
name: Entel, Peter
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We put a spotlight on the exceptional magnetic properties of the metamagnetic Heusler alloy (Ni,Co)-Mn-Sn by means of first principles simulations. In the energy landscape we find a multitude of local minima, which belong to different ferrimagnetic states and are close in total magnetization and energy. All these magnetic states correspond to the local high spin state of the Mn atoms with different spin alignments and are related to the magnetic properties of Mn. Compared to pure Mn, the magneto-volume coupling is reduced by Ni, Co, and Sn atoms in the lattice and no local low-spin Mn states appear. For the cubic phase we find a ferromagnetic ground state whereas the global energy minimum is a tetragonal state with complicated spin structure and vanishing magnetization which so far has been overlooked in simulations.
description: 9 pages, 9 figures
(Anti-)deuteron production and anisotropic flow measured with ALICE at the LHC
Creators: name: Lea, Ramona
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The high abundance of (anti-)deuterons in the statistics gathered in Run 1 of the LHC and the excellent performance of the ALICE setup allow for the simultaneous measurement of the elliptic flow and the deuteron production rates with a large transverse momentum ($p_{\rm T}$) reach. The (anti-) deuterons are identified using the specific energy loss in the time projection chamber and the velocity information in the time-of-flight detector. The elliptic flow of (anti-)deuterons can provide insight into the production mechanisms of particles in heavy-ion collisions. Quark coalescence is one of the approaches to describe the elliptic flow of hadrons, while the production of light nuclei can be also depicted as a coalescence of nucleons. In these proceedings, the measured $v_{2}$ of deuterons produced in Pb--Pb collisions at $\sqrt{s_{\mathrm{NN}}}$=2.76TeV will be compared to expectations from coalescence and hydrodynamic models.
description: 4 pages, 3 figures, proceeding of Quark Matter 2015, Kobe, Japan
Self-consistent evolution of accreting low-mass stars and brown dwarfs
Creators: name: Baraffe, I.
name: Elbakyan, V. G.
name: Vorobyov, E. I.
name: Chabrier, G.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present self-consistent calculations coupling numerical hydrodynamics simulations of collapsing pre-stellar cores and stellar evolution models of accreting objects. We analyse the main impact of consistent accretion history on the evolution and lithium depletion of young low-mass stars and brown dwarfs. These consistent models confirm the generation of a luminosity spread in Herzsprung-Russell diagrams at ages $\sim$ 1-10 Myr. They also confirm that early accretion can produce objects with abnormal Li depletion, as found in a previous study that was based on arbitrary accretion rates. The results strengthen that objects with anomalously high level of Li depletion in young clusters should be extremely rare. We also find that early phases of burst accretion can produce coeval models of similar mass with a range of different Li surface abundances, and in particular with Li-excess compared to the predictions of non-accreting counterparts. This result is due to a subtle competition between the effect of burst accretion and its impact on the central stellar temperature, the growth of the stellar radiative core and the accretion of fresh Li from the accretion disk. Only consistent models could reveal such a subtle combination of effects. This new result could explain the recent, puzzling observations of Li-excess of fast rotators in the young cluster NGC 2264. Present self-consistent accreting models are available in electronic form.
description: 14 pages, 8 figures, accepted for publication in Astronomy and Astrophysics
What does a national web talk about? — digging into billions of words, the Danish case
Creators: name: Brügger, Niels
Publisher: name: Zenodo
Year: 2023

description: Niels Brügger, Working Group 1: What does a national web talk about? — digging into billions of words, the Danish case,
 Aarhus Autumn Meeting 2021, Thursday 4 November
The Effect of Supply Chain Management Practices on Company Performance. The case of Technostyle PLC.
Creators: name: Assefa, Masresha
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2018

description: The purpose of this study is to assess the effect of supply chain management practices on the Company performance. For this study the supply chain management practices; strategic supplier partnership, customer relationship, the level of information sharing, quality of information sharing, and lean practices. The researcher applied a descriptive research type and used a mixed research approach both quantitative and qualitative. The data were collected through a questionnaire by distributing on employees and by conducting a face to face interview with two managers. The researcher followed a census sampling technique to use all the target population of 118. The study showed that, Strategic supplier relationship, the level of information sharing, quality of information sharing and lean practices have medium whereas customer relationship has low relation to company performance with the statistical significant level. And the regression result shows that, strategic supplier relationship and lean practices have a positive and medium effect, the level of information sharing and quality of information sharing have positive and low effect, customer relationship has negative effect on Company performance. The study is limited on one furniture supplier company and on some issues of supply chain management practices and Company performance. Therefore, those above limitations are important for future studies. So, in the future, researchers may focus on the other aspects of this study and could stretch its scope as a country level regarding on furniture and foam factories
The effects of turbulence on streamwise surface pressures in separated and reattaching flows
Creators: name: Li., Qiusheng
Publisher: name: Monash University
Year: 2021

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.
MPEC 2024-Q89 : 2024 QV1
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2024
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2024 QV1

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Melos in the World of K-Drama
Creators: name: Choe, Steve
Publisher: name: Korea Europe Review: an interdisciplinary journal of politics, society, and economics
Year: 2022

description: This essay elucidates the concept of the “affective interlude,” a moment in the K-drama that showcases emotion, typically of a character within the drama, while soliciting viewers to feel something, such as sympathy or outrage, in relation to it. This moment is emblematic of the poetics of the K-drama and exemplary of popular moving image narrative more generally. Part two of this essay considers the affective interlude in the context of its reproducibility. In doing so, we can begin to understand the K-drama as an aesthetic form that functions as an archive of Korean emotion.
description: Korea Europe Review: an interdisciplinary journal of politics, society, and economics, No. 3 (2022): Transnational Korea and the Korean Cinematic Imagination
Down and Out in Eco-Dystopia: Class and Gender in Wonderful Days
Creators: name: Lovins, Christopher
Publisher: name: Korea Europe Review: an interdisciplinary journal of politics, society, and economics
Year: 2022

description: The film Wonderful Days plays out in a science fiction setting the history of Korea’s struggle against dictatorial rule. The plot concerns an attempt to end the exploitation of the oppressed workers. However, the symbolism is muddled and confused because of the reactionary approach to gender. The symbol of the Korean middle class and only female character is a passive observer, which elides the crucial role of the middle class in the struggle against dictatorship. By succumbing to gender roles typical of Korean romantic dramas, the film fails at effectively dramatizing Korean class conflict in its futuristic post-apocalyptic setting. This article brings history into the analysis of this film and by extension to analysis of science fiction and film overall. It offers an example of the integration of historical analysis into scholarly work on popular film.
description: Korea Europe Review: an interdisciplinary journal of politics, society, and economics, No. 3 (2022): Transnational Korea and the Korean Cinematic Imagination
Fermionic observables in the transverse Ising chain
Creators: name: Björnberg, Jakob E.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mathematical Physics (math-ph)
subject: Probability (math.PR)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We introduce a notion of s-holomorphicity suitable for certain quantum spin systems in one dimension, and define two observables in the critical transverse-field Ising model which have this property. The observables are defined using graphical representations in the complex plane, and are analogous to Smirnov's FK-Ising and spin-Ising observables, respectively. We also briefly discuss scaling-limits of these observables.
description: 32 pages
On the Move/In Bewegung. Eine Wanderausstellung auf transatlantischer Reise
Creators: name: Natarajan, Radhika
Publisher: name: Universität Bielefeld
Year: 2022
Subjects: subject: 300
subject: Travelling exhibition
subject: memory
subject: site–deterritorialization
subject: addressees
subject: museum
subject: Wanderausstellung
subject: Erinnerung
subject: Entortung
subject: Adressierte

description: This working paper addresses two facets regarding the conception and planning of a travelling exhibition in Germany on tolerance that was originally conceived and implemented in Mexico (2016–2019). It ponders the significance of such an exhibition that is located in easily accessible public spaces and then discusses the possible contents of the exhibition-in-the-making. The paper engages with two interdisciplinary conceptions, »traveling theories« (Said 1983) and »de- and reterritorialization« (Levy and Sznaider 2001), to reflect on the scope and potential of the prospective touring exhibition in Germany. First, the contexts and contents of the original exhibition in Mexico and then the spatial conceptions of ›travel‹ and ›site‹ serve as contextual and theoretical frames to explore both the educational purposes and productive potentials of the travelling exhibition.
description: Dieses Arbeitspapier befasst sich mit zwei Facetten, die aus der Konzeption und Planung einer Wanderausstellung zu Toleranz in Deutschland hervorgehen. Die Frage nach der Bedeutung einer niederschwellig konzipierten Ausstellung im öffentlichen Raum wird reflektiert und die möglichen Inhalte dieser sich in Entstehung befindenden Ausstellung werden diskutiert. Das Papier bedient sich zweier interdisziplinärer Denkanstöße, der Konzepte »traveling theories« (Said 1983) sowie »Entortung und Wiederverortung« (Levy und Sznaider 2001), um sich erste Gedanken über das Potenzial der Wanderausstellung in Deutschland zu machen. Hierbei geben einerseits die Gestaltungsidee und das Konzept der ursprünglichen Ausstellung in Mexiko erste Impulse, andererseits dienen theoretische Konzepte zur ›Wanderschaft‹ und zum ›Ort‹ als Rahmen, um mögliche Gelingensbedingungen der Wanderausstellung in ihrem Bildungsauftrag und -anspruch auszuloten und mitzuentwickeln.
Over-the-horizon radar and ionospheric backscatter studies
Creators: name: Li., L.W.
Publisher: name: Monash University
Year: 2021

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.
Shape Optimization of AALRT Wheel Profile
Creators: name: Tesfaye, Atalay
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2017

description: AALRT is the first modern light rail transit for Ethiopia; it was warmly welcomed by the public and after 1 ½ year still it doesn't answer publics need of transport. However during this short period the trains suffer with fast wheel wear problem and ERC loses money for maintenance costs when changing and re-profiling wheels. This study aims to reduce wheel rail wear by optimizing wheel profile and check dynamic performance analysis of used and new optimized wheel profile. The methodology of this paper starts using two basics 1. If the shape of the Rolling Radius Difference function is defined by the wheel and rail profiles, then the opposite is also valid 2) When the same type of rolling stock is running on the same track and no influence of other type railway vehicles then there is a possibility to design or optimize a new wheel profile, which matches an existing rail profile. Then the obtained profile checked regarding to dynamic performances (tested for stability, wear and safety requirements) using SIMPACK computer package. After optimization and performance analysis the result of this paper shows optimized wheel profile has wear index of 1900N, 420N and 56N on R50curve, R150 curve and on straight track respectively. Which is optimized by 1100N, 120N and 22N wear index compared to currently used AALRT wheel profile. As Conclusion compared to AALRT wheel profile the optimized profile has less wear rate, better dynamic performance, and the same safety requirements. Therefore wheel profile optimization has great impact on wheel Rail wear and AALRT have to work on it for better result.
Three-dimensional wave evolution on electrified falling films
Creators: name: Tomlin, R. J.
name: Papageorgiou, D. T.
name: Pavliotis, G. A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We consider the full 3D dynamics of a thin falling liquid film on a flat plate inclined at some non-zero angle to the horizontal. In addition to gravitational effects, the flow is driven by an electric field, which is normal to the substrate far from the flow. We study both the cases of overlying and hanging films, where the liquid rests above and below the substrate respectively. Starting with the Navier-Stokes equations coupled with electrostatics, a fully nonlinear 2D Benney equation for the interfacial dynamics is derived valid for waves that are long compared to the film thickness. The weakly nonlinear evolution is governed by a Kuramoto-Sivashinsky equation with a non-local term due to the electric field effect. The electric field term is linearly destabilising and produces growth rates proportional to the cube of the size of the wavenumber vector of the perturbations. It is found that transverse gravitational instabilities are always present for hanging films and lead to unboundedness of solutions even in the absence of electric fields. For overlying films and a restriction on the strength of the electric field, the equation possesses bounded solutions. This 2D equation is studied numerically for the case of periodic boundary conditions in order to assess the effects of inertia, electric field strength the dimensions of the periodic domain. Rich dynamical behaviours are observed and classified in various parameter windows. For subcritical Reynolds number flows, a sufficiently strong electric field can promote non-trivial dynamics for some choices of domain dimensions, leading to fully 2D evolutions for the interface. These dynamics are also found to produce spatiotemporal chaos on sufficiently large domains. For supercritical flows, such 2D chaotic dynamics emerge in the absence of a field, and its presence enhances the amplitude of the fluctuations and broadens their spectrum.
Challenges of Supply Chain Management in the Petroleum Supplier Company, The Case of Total Ethiopia S. Co
Creators: name: Asfaw, Yakob
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2017

description: This study has measured the challenges of supply chain management in petroleum supplier company; the case of Total Ethiopia S.Co. The study is undertaken based on the perspective of transport and supply, marketing and customer service work forces of Total Ethiopia S.Co who are the key actors directly involved in the supply chain management operation and challenges of the company. The data for the study were collected from all the corresponding target population. The small size of the total number of the transport and supply, marketing and customer service which is 40 allows the researcher to consider all of them. Moreover, these populations were also purposely considered since they have possessed the required knowledge, specialization and various experiences in the different supply chain management activities. Then, a questionnaire was distributed to all of the transport and supply, marketing and customer service workforces who are 40 in number. Out of 40 questionnaires distributed to the respondents, all of the questionnaires were returned (accepted) and from the accepted responses, all responses received were found valid and used for the analysis. Thus, the response rate accounts 100%. The data collection instrument used was a questionnaire. The study were employed a combination of both qualitative and quantitative data analysis techniques. Chronbach's alpha test was conducted for different variables to assess the reliability of the instrument. SPSS was used to produce preliminary frequency tables, graphs and other descriptive statistics. Correlation analyses were also conducted to describe the relationships between variables. From the analysis results, the study has found that the company should revise the transportation management activity and challenges, customer service management activity and challenges, inventory management activity and challenges, supply management activity and challenges, demand management activity and challenges identified in all the above major activities in petroleum supply chain management. Finally the study has recommended the company to work on minimizing transportation cost, to improve the distribution network, to develop a tool to control the stock level of stations, increase the number of trucks available, revise the safety requirement and discuss with the government to boost the supply of petroleum products to reduce product shortage challenge by the company
Maintenance Guideline for Railway Concrete Bridges to the Ethiopian Practice
Creators: name: Shalom, Ashuro
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2015

description: To perform any Engineering activity there should be a binding standard guideline with in one country. Ethiopia has established codes and guidelines for different Engineering design and construction which includes the Ethiopian Building Codes of Standards, for design and construction of buildings, Ethiopian Roads Authority manuals for design and construction of Highways and Bridges and also Addis Ababa City Roads Manuals for design and construction of urban roads and bridges. Now days the country is constructing vast railways in Addis Ababa and at federal level connecting the various regional states to each other and to neighboring countries. These constructions are handled mainly by foreign Contractors who make use of their own codes of standards, which may not account the local condition and the cultural makeup of our society. Thus, Ethiopia should have its own guidelines for the design, construction and maintenance of Railway system. Bridge is one of the major components of railway system. This thesis will be concerned on assessment of governing guideline for maintenance of Railway Bridge. This guideline may be set up using detailed studies on geologic, topographic, weather, environmental, economic, social and cultural conditions of the country. Specifically concerning the bridge; Loading condition on the bridge, traffic volume, frequency of loading, type of bridge length of span, methodology during design and construction of bridges, track type based on number of track, tack type based on load transferring and bearing components, seismic events of the area will be considered to adapt the appropriate maintenance guideline to Ethiopian Railway Bridges. Therefore, the study will be concerned with preparation of the best guidelines of maintenance and rehabilitation Railway Bridges by incorporating the practice and experience of other countries.
Studies on the reduction of arsenic (V) to arsenic (III) with sulphur dioxide
Creators: name: Nan., Li
Publisher: name: Monash University
Year: 2021

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.
A Brief History of Gravitational Waves
Creators: name: Cervantes-Cota, Jorge L.
name: Galindo-Uribarri, Salvador
name: Smoot, George F.
Publisher: name: arXiv
Year: 2016
Subjects: subject: History and Philosophy of Physics (physics.hist-ph)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: This review describes the discovery of gravitational waves. We recount the journey of predicting and finding those waves, since its beginning in the early twentieth century, their prediction by Einstein in 1916, theoretical and experimental blunders, efforts towards their detection, and finally the subsequent successful discovery.
description: 30 pages
The International Committee on Open Phytolith Science (ICOPS): A community effort to improve the collection, preservation and sharing of phytolith data.
Creators: name: Kerfant, Celine
name: Karoune, Emma
Publisher: name: Zenodo
Year: 2024

description: This presentation was given at the European Association of Archaeology Conference on 31st August 2024 by Celine Kerfant and Emma Karoune on behalf of the International Committee on Open Phytolith Science.

Conference Abstract:

Phytoliths are plant microfossils used worldwide to answer a variety of questions in fields as diverse as archaeology, palaeoecology and palaeontology. The result is a profusion of phytolith terms and methodologies that partially hamper commensurable communication and sharing of knowledge among research communities.

The International Committee on the Open Science of Phytoliths (ICOPS) was established in 2021 to improve this situation and start moving towards implementing open scientific principles and practices. This presentation aims to outline the objectives and achievements of this community group, which include: 

The implementation of training workshops in digital tools such as GitHub for researchers and students. 

The creation of a website, using the GitHub environment, designed to store and share all data relating to ICOPS actions in a transparent way. 

An open publishing guide to help researchers publish and share phytolith (raw) data. 

The beginnings of the first ontology for phytolith research, designed in accordance with the International Code for Phytolith Nomenclatures (ICPN 1.0 and 2.0) to facilitate the accessibility and interoperability of phytolith data. 

A community survey and FAIR assessment of existing phytolith data to establish FAIR (Findable, Accessible, Interoperable, Reusable) data guidelines for phytolith research.

 

Future plans for 2024 include talks from experts in open and FAIR science and clinic sessions to help and support researchers  to implement open and FAIR practices in their research projects and data.
title: Emergency Department Based Interventions for Youth with Non-fatal Firearm Injuries: A Scoping Review Protocol
title: ED Youth Firearms Scoping Review Protocol FINAL
titleType: AlternativeTitle
Creators: name: Kemal, Samaa
name: Hernandez, Jethel
name: Nunes, Denise
name: Fein, Joel
name: Sheehan, Karen
Publisher: name: Prism. Galter Health Sciences Library. Northwestern University
Year: 2023
Subjects: subject: Emergency medicine
subject: Gunshot wounds
subject: Pediatric emergencies
subject: Pediatric Emergency Medicine
subject: Wounds, Gunshot

description: This scoping review aims to describe what interventions are currently being utilized for children presenting to the Emergency Department (ED) with firearm injuries.  A comprehensive understanding of the current landscape of ED-based interventions for children with firearm injuries will help identify gaps in the literature to inform future directions in pediatric firearm injury prevention.
Software design and architectural aspects of reliable computer systems
Creators: name: Lew., Ken Sun
Publisher: name: Monash University
Year: 2021

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.
$CP$ violation for $B^+_{c}\rightarrow D_{(s)}^+π^+π^-$ in Perturbative QCD
Creators: name: Lü, Gang
name: Li, Sheng-Tao
name: Wang, Yu-Ting
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In the perturbative QCD (PQCD) approach we study the direct $CP$ violation in $B^+_{c}\rightarrow D_{(s)}^+ρ^0(ω) \rightarrow D_{(s)}^+π^+π^-$ via the $ρ-ω$ mixing mechanism. We find that the $CP$ violation can be enhanced by $ρ-ω$ mixing when the invariant masses of the $π^+π^-$ pairs are in the vicinity of the $ω$ resonance. For the decay process $B^+_{c}\rightarrow D^+ρ^0(ω) \rightarrow D^+π^+π^-$, the maximum $CP$ violation can reach 7.5 {\%}.
description: arXiv admin note: text overlap with arXiv:1112.1257, arXiv:0704.3132 by other authors
Pais-Uhlenbeck Oscillator and Negative Energies
Creators: name: Pavšič, Matej
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We review the occurrence of negative energies in Pais-Uhlenbeck oscillator. We point out that in the absence of interactions negative energies are not problematic, neither in the classical nor in the quantized theory. However, in the presence of interactions that couple positive and negative energy degrees of freedom the system is unstable, unless the potential is bounded from bellow and above. We review some approaches in the literature that attempt to avoid the problem of negative energies in the Pais-Uhlenbeck oscillator.
description: 37 pages, 11 figures; Invited review for International Journal of Geometric Methods in Modern Physics; more references are added, some typos corrected
One‐Pot Chemoenzymatic Synthesis of Microviridin Analogs Containing Functional Tags
Creators: name: Scholz, Stella
name: Kerestetzopoulou, Sofia
name: Wiebach, Vincent
name: Schnegotzki, Romina
name: Schmid, Bianca
name: Reyna‐González, Emmanuel
name: Ding, Ling
name: Süssmuth, Roderich D.
name: Dittmann, Elke
name: Baunach, Martin
Publisher: name: Technische Universität Berlin
Year: 2022
Subjects: subject: 540 Chemie und zugeordnete Wissenschaften
subject: chemoenzymatic synthesis
subject: protease inhibitors
subject: microviridins
subject: RiPPs
subject: synthetic biology

description: Microviridins are a prominent family of ribosomally synthesized and posttranslationally modified peptides (RiPPs) featuring characteristic lactone and lactam rings. Their unusual cage‐like architecture renders them highly potent serine protease inhibitors of which individual variants specifically inhibit different types of proteases of pharmacological interest. While posttranslational modifications are key for the stability and bioactivity of RiPPs, additional attractive properties can be introduced by functional tags. To date – although highly desirable – no method has been reported to incorporate functional tags in microviridin scaffolds or the overarching class of graspetides. In this study, a chemoenzymatic in vitro platform is used to introduce functional tags in various microviridin variants yielding biotinylated, dansylated or propargylated congeners. This straightforward approach paves the way for customized protease inhibitors with built‐in functionalities that can help to unravel the still elusive ecological roles and targets of this remarkable class of compounds and to foster applications based on protease inhibition.
Thom's official directory of the United Kingdom of Great Britain and Ireland for the year 1904 (pages 1-416h)
Creators: name: Alex. Thom & Co.
Publisher: name: University of Victoria Libraries
Year: 2021
Subjects: subject: Nobility
valueUri: http://id.worldcat.org/fast/1038255
subject: Cities and towns
valueUri: http://id.worldcat.org/fast/861748
subject: Directories
valueUri: http://id.worldcat.org/fast/894589
subject: Business--Directories
valueUri: http://id.worldcat.org/fast/842318

description: "Comprising British, foreign, and colonial directories. Parliamentary directory, Peerage, baronetage, and knightage directory. Naval and military directory. Statistics of Great Britain and Ireland. Government offices directory. University, scientific, and medical directory., Law directory. Ecclesiastical directory. Banking directory. Postal directory. County and borough directory. Lieutenancy and magistracy of Ireland. Post office Dublin city and county directory, with a new coloured map of Dublin and its environs."
A numerical investigation of transversely-oscillating cylinders in two-dimensional flow
Creators: name: Leontini., Justin
Publisher: name: Monash University
Year: 2021

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.
Understanding the Tracking Errors of Commodity Leveraged ETFs
Creators: name: Guo, Kevin
name: Leung, Tim
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Finance (q-fin.GN)
subject: FOS: Economics and business

description: Commodity exchange-traded funds (ETFs) are a significant part of the rapidly growing ETF market. They have become popular in recent years as they provide investors access to a great variety of commodities, ranging from precious metals to building materials, and from oil and gas to agricultural products. In this article, we analyze the tracking performance of commodity leveraged ETFs and discuss the associated trading strategies. It is known that leveraged ETF returns typically deviate from their tracking target over longer holding horizons due to the so-called volatility decay. This motivates us to construct a benchmark process that accounts for the volatility decay, and use it to examine the tracking performance of commodity leveraged ETFs. From empirical data, we find that many commodity leveraged ETFs underperform significantly against the benchmark, and we quantify such a discrepancy via the novel idea of \emph{realized effective fee}. Finally, we consider a number of trading strategies and examine their performance by backtesting with historical price data.
DFT‐basierte Entdeckung von Ethynyl‐Triazolyl‐Phosphinaten als modulare Elektrophile für die chemoselektive Cystein‐Biokonjugation und Profilierung
Creators: name: Stieger, Christian E.
name: Park, Yerin
name: De Geus, Mark A. R.
name: Kim, Dongju
name: Huhn, Christiane
name: Slenczka, J. Sophia
name: Ochtrop, Philipp
name: Müchler, Judith M.
name: Süssmuth, Roderich D.
name: Broichhagen, Johannes
name: Baik, Mu‐Hyun
name: Hackenberger, Christian P. R.
Publisher: name: Technische Universität Berlin
Year: 2022
Subjects: subject: 660 Chemische Verfahrenstechnik
subject: Antikörper-Wirkstoff-Konjugate
subject: Biokonjugation
subject: cysteine Profiling
subject: Protein-basierte Elektrophile
subject: Protein-Protein Konjugation
subject: ADCs

description: Wir berichten über eine Dichtefunktionaltheorie (DFT)-basierte Entdeckung von Ethinyl-Triazolyl-Phosphinaten (ETP) als eine neue Klasse elektrophiler Verbindungen für die selektive Biokonjugation von Cystein. Mit Hilfe der CuI-katalysierten Azid-Alkin-Cycloaddition (CuAAC) in wässrigem Puffer konnten wir eine Vielzahl funktioneller elektrophiler Bausteine, darunter auch Proteine, aus Diethynylphosphinat herstellen. Wir verwendeten diese ETP-Reagenzien, um fluoreszierende Peptid-Konjugate für die Markierung von Rezeptoren auf lebenden Zellen sowie ein stabiles und biologisch aktives Antikörper-Wirkstoff-Konjugat zu erhalten. Darüber hinaus konnten wir ETP-Elektrophile unter nativen Bedingungen in ein Azid-haltiges Ubiquitin einbauen und ihr Potenzial für die Protein-Protein-Konjugation demonstrieren. Schließlich zeigen wir die exzellente Cystein-Selektivität dieser neuen Klasse von Elektrophilen in Massenspektrometrie basierten, proteomweiten Reaktivitätsstudien und unterstreichen damit die generelle Anwendbarkeit in homogenen Biokonjugationsstrategien zur Verknüpfung zweier komplexer Biomoleküle.
2dFLenS and KiDS: Determining source redshift distributions with cross-correlations
Creators: name: Johnson, Andrew
name: Blake, Chris
name: Amon, Alexandra
name: Erben, Thomas
name: Glazebrook, Karl
name: Harnois-Deraps, Joachim
name: Heymans, Catherine
name: Hildebrandt, Hendrik
name: Joudaki, Shahab
name: Klaes, Dominik
name: Kuijken, Konrad
name: Lidman, Chris
name: Marin, Felipe A.
name: McFarland, John
name: Morrison, Christopher B.
name: Parkinson, David
name: Poole, Gregory B.
name: Radovich, Mario
name: Wolf, Christian
Publisher: name: arXiv
Year: 2016
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We develop a statistical estimator to infer the redshift probability distribution of a photometric sample of galaxies from its angular cross-correlation in redshift bins with an overlapping spectroscopic sample. This estimator is a minimum variance weighted quadratic function of the data: a quadratic estimator. This extends and modifies the methodology presented by McQuinn & White (2013). The derived source redshift distribution is degenerate with the source galaxy bias, which must be constrained via additional assumptions. We apply this estimator to constrain source galaxy redshift distributions in the Kilo-Degree imaging survey through cross-correlation with the spectroscopic 2-degree Field Lensing Survey, presenting results first as a binned step-wise distribution in the range z < 0.8, and then building a continuous distribution using a Gaussian process model. We demonstrate the robustness of our methodology using mock catalogues constructed from N-body simulations, and comparisons with other techniques for inferring the redshift distribution.
description: 17 pages, 10 figures, accepted for publication by MNRAS
A generic modelling technique for integrating the engineering design process
Creators: name: Lemass., Brett
Publisher: name: Monash University
Year: 2021

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.