cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Analysis of Fillers for Production of Alternative Building Materials Using Magnesia Cement
Creators: name: Tadele, Tamrat
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2008

description: Fillers, which are available in the country, are essential for the production of magnesia cement boards. These include pumice and lignocellulostic fillers such as bagasse, sawdust and coffee husk. While applying these fillers to produce the boards, their nature and performance should be studied. Magnesia cement was used as binding materials; varying boards were produced for different proportion fillers with fixed ratio of magnesium oxide and magnesium chloride. For the board produced, density, water absorption, and setting time as well as mechanical properties such as the compressive strength and the bending strength determined. In addition, the effects of different fillers on the properties of the board and production cost were examined. When the saw dust and coffee husk filler substituted the current used bagasse filler, the water absorption and setting time of the boards reduced. While the density, bending strength and compressive strength of the board increased. The mix ratio of fillers and pumice powder had also influence on the physical and mechanical property of the boards. The test results showed as the proportion of the pumice increased, the mechanical strength of the boards increased and the setting time of the cement paste reduced. The cost analysis showed that the saw dust board production cost was lower than coffee husk and bagasse board cost. While the production cost of the coffee husk board was slightly higher than others. viii In aim of production of filler boards as alternative building materials are, the cost comparison showed in the possibility of producing relatively low price than the hollow concrete blocks included finishing work cost.
Amtliche Mitteilungen der Technischen Universität Dortmund Nr. 21/2015
Creators: name: (:Unkn) Unknown
Publisher: name: Technische Universität Dortmund
Year: 2015
Subjects: subject: 080

description: Beitragsordnung der Studierendenschaft der Technischen Universität Dortmund vom 11. August 2015
description: Beitragsordnung des Studierendenwerks Dortmund in der Fassung vom 26.06.2015 gemäß § 12 Abs. 5 des Gesetzes über die Studierendenwerke in Nordrhein-Westfalen (StWG)
description: Amtliche Mitteilungen der Technischen Universität Dortmund;21, 2015
Optimization of laser stabilization via self-injection locking to a whispering-gallery-mode microresonator: experimental study
Creators: name: Shitikov, Artem E.
name: Lykov, Ilya I.
name: Benderov, Oleg V.
name: Chermoshentsev, Dmitry A.
name: Gorelov, Ilya K.
name: Danilin, Andrey N.
name: Galiev, Ramzil R.
name: Kondratiev, Nikita M.
name: Cordette, Steevy J.
name: Rodin, Alexander V.
name: Masalov, Anatoly V.
name: Lobanov, Valery E.
name: Bilenko, Igor A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Self-injection locking of a diode laser to a high-quality-factor microresonator is widely used for frequency stabilization and linewidth narrowing. We constructed several microresonator-based laser sources with measured instantaneous linewidths of 1 Hz and used them for investigation and implementation of the self-injection locking effect. We studied analytically and experimentally the dependence of the stabilization coefficient on tunable parameters such as locking phase and coupling rate. It was shown that precise control of the locking phase allows fine tuning of the generated frequency from the stabilized laser diode. We also showed that it is possible for such laser sources to realize fast continuous and linear frequency modulation by injection current tuning inside the self-injection locking regime. We conceptually demonstrate coherent frequency-modulated continuous wave LIDAR over a distance of 10 km using such a microresonator-stabilized laser diode in the frequency-chirping regime and measure velocities as low as sub-micrometer per second in the unmodulated case. These results could be of interest for cutting-edge technology applications such as space debris monitoring and long-range object classification, high resolution spectroscopy and others.
El matrimonio y el divorcio en Colombia
Creators: name: Castillo Castilla, José María
Publisher: name: Universidad de Cartagena
Year: 1972
Subjects: Divorcio - Colombia

description: Tesis (Abogado) -- Universidad de Cartagena. Facultad de Derecho y Ciencias Políticas. Programa de Derecho, 1972
description: Referencia del matrimonio en sus aspectos transcendentales, considerando el divorcio una secuela imprescindible al matrimonio, a su vez viendo cómo se desechan hogares de personas humildes, familias muy consideradas por su posición cultural y económica.
Determinants of Cost and Schedule Overrun on Private Projects Financed by Commercial Bank of Ethiopia
Creators: name: Zeleke, Sisay
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2017

description: This study was conducted to assess determinant factors of cost and schedule overrun on private projects financed by CBE. In view of this, mixed research strategy with a descriptive research method was employed using a census type approach for collection of data. A total of 65 questionnaires were distributed to the whole populations of the study, credit performers of the bank, based on census inquiry. Out of which 56 responses were returned complete and hence were used as a source of primary data. Furthermore, In order to obtain more insight on the cases, the study used review of document on some of the loan files of the customers and also conducts an in-depth interview with credit approving members of the bank. The results of the study indicates shortage of foreign currency supply, Inconvenient terms and pre-condition for phase loan disbursement, Poor due diligence assessment to know the customer, under-financing, fund diversion for unintended purpose, lack of commitment by the project promoter, Improper planning on time estimation, management capacity problem to run the project, financial problems, un-planned and ambitious business expansion, lack of utilities, Inflation/exchange rate fluctuation, unavailability of necessary information to appraise the project feasibility, Political Factors, major disputes and negotiations with external organ, design/scope change due to external factors, contractual disputes with external organ, delay on land/site handover, regulatory changes and unforeseen ground condition during construction are the most determinants of project schedule overrun. As far as determinants of project cost overrun is concerned, the result shows that Incomplete and not well prepared feasibility study presented by the project promoter, unplanned expansion/Change order, lack of resource planning, delay from borrower side, underestimating the project complexity, Poor selection of consultant, lack of backup Plan, Incremental financial cost (volatility of foreign exchange and borrowing cost), difficulties to get prompt service from government office, Inadequate availability of skilled resource, unstable and unpredictable market situation in the country /Inflation and delay due to external factors are the most causes of project cost overrun. Therefore, on the basis of the findings, recommendations to concerned parties were provided to improve the performance of project cost and schedule.
title: Unbekannter Impfstatus: Prädiktor für erhöhtes Risikos schwerwiegender Infektionen?
Creators: name: Strangfeld, Anja
name: Richter, Adrian
name: Manger, Bernhard
name: Burmester, Gerd-Rüdiger
name: Eisterhues, Christina
name: Listing, Joachim
name: Zink, Angela
Publisher: name: German Medical Science GMS Publishing House
Year: 2015
Subjects: subject: 610 Medical sciences; Medicine

description: Einleitung: Therapieentscheidungen der täglichen rheumatologischen Praxis sind bei Patienten mit rheumatoider Arthritis (RA) komplex und die Kontrolle des Impfstatus kann dabei aus dem Blick geraten. Wir haben untersucht, ob bei Patienten mit unbekanntem oder negativem Impfstatus häufiger [zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 43. Kongress der Deutschen Gesellschaft für Rheumatologie (DGRh); 29. Jahrestagung der Deutschen Gesellschaft für Orthopädische Rheumatologie (DGORh); 25. wissenschaftliche Jahrestagung der Gesellschaft für Kinder- und Jugendrheumatologie (GKJR)
Genetic and environmental influences on utilization of Eucalyptus camaldulensis (Dehnh.) by Leptocybe invasa Fisher & LaSalle (Hymenoptera: Eulophidae)
Creators: name: Otieno, Beryn Achieng
Publisher: name: La Trobe
Year: 2023

description: Submission note: A thesis submitted in fulfilment of the requirements for the degree of Doctor of Philosophy by work intended to be published to the Department of Ecology, Environment and Evolution, School of Life Sciences, College of Science, Health and Engineering, La Trobe University, Melbourne, Victoria.

Thesis with publications.
A census of compact sources at 162MHz: first data release from the MWA Phase II IPS Survey
Creators: name: Morgan, John
name: Chhetri, Rajan
name: Ekers, Ron
Publisher: name: arXiv
Year: 2022
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present a catalogue of over 7000 sources from the GLEAM survey which have significant structure on sub-arcsecond scales at 162MHz. The compact nature of these sources was detected and quantified via their Interplanetary Scintillation (IPS) signature, measured in interferometric images from the Murchison Widefield Array. The advantage of this approach is that all sufficiently compact sources across the survey area are included down to a well-defined flux density limit. The survey is based on $\sim$250$\times$ 10-minute observations, and the area covered is somewhat irregular, but the area within 1hr5σ$ confidence), with a further 5550 tentative ($>2σ$ confidence) detections. Normalised Scintillation Indices (NSI; a measure of the fraction of flux density coming from a compact component) are reported for these sources. Robust and informative upper limits on the NSI are reported for a further 31081 sources. This represents the largest survey of compact sources at radio frequencies ever undertaken.
description: 20 pages, accepted for publication in PASA
Valorization of Orange Peel for Dye Synthesis and Its Application for Dyeing Cotton Fabric
Creators: name: Ebuy, Werede
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2019

description: A further usage of peels from orange as natura dyes is presented in this paper. Natural dye is generally applied in an aqueous solution, and requires a mordant to improve the fastness of the dye on the fiber. Because of its good affinity, brilliant colours, nontoxic, non-allergic nature on textile materials, easy accessibility and less damaging effect on human health, it can be used in food, pharmaceutical, and textile industries. The aim of this study is to valorize orange peels for dye synthesis and to evaluate its yield. Orange peel is used as a raw material for the extraction of natural dye using soxhlet extraction method. Design of experiment for RSM was used to analyze and optimize the effect of extraction temperature (65°C, 72.5°C, and 80°C), extraction time (1.5h, 3.25h and 5h) and orange peel to ethanol ratio (0.05g/mL, 0.075g/mL and 0.1g/mL) on extraction of natural dye from orange peels. A maximum yield of natural dye of 40.109% was achieved under selected optimal conditions with high value of combined desirability a threevariable, three-level Box-Behnken design was used to develop a statistical model. From experiment, the yield of natural dye was obtained as 40.106%. FTIR and UV-Vis spectrophotometric studies were performed on the dye extract. The dyes produced were applied on cotton fabric and Na2CO3 was used for fixing the color on the fabric. Colour dyeing and testing were carried out using data color tool analysis (L*, a*, b*) and fastness properties of dyed cotton fabric were investigated according to AATCC-61 and crocking ISO 105×12.
title: Fundus-OCT: der strukturierte Weg zum aussagefähigen Bild
Creators: name: Nagel, Edgar
Publisher: name: German Medical Science GMS Publishing House
Year: 2015
Subjects: subject: 610 Medical sciences; Medicine

description: Einleitung: Die Optische Kohärenztomografie (OCT) ist heute unverzichtbarer Bestandteil der Routinediagnostik vieler Netzhaut- und Sehnerverkrankungen. Zur Erstellung optimaler, klinisch aussagefähiger Bilder in schwierigen Fällen erscheinen spezifische Aufnahmemodi sinnvoll. Schritte:[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 23. Jahrestagung der Gesellschaft der Augenärzte Sachsen-Anhalts und Thüringens
The role of accounting devices in strategy execution processes in the public sector: evidence from Australia
Creators: name: Salter, Margaret M.
Publisher: name: La Trobe
Year: 2023

description: Submission note: A thesis submitted in total fulfilment of the requirements for the degree of Doctor of Philosophy to the Department of Accounting and Data Analytics, La Trobe Business School, College of Arts, Social Sciences and Commerce, La Trobe University, Melbourne.
A general relativistic extension to mesh-free methods for hydrodynamics
Creators: name: Lupi, Alessandro
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: The detection of gravitational waves has opened a new era for astronomy, allowing for the combined use of gravitational wave and electromagnetic emissions to directly probe the physics of compact objects, still poorly understood. So far, the theoretical modelling of these sources has mainly relied on standard numerical techniques as grid-based methods or smoothed particle hydrodynamics, with only a few recent attempts at using new techniques as moving-mesh schemes. Here, we introduce a general relativistic extension to the mesh-less hydrodynamic schemes in the code GIZMO, which benefits from the use of Riemann solvers and at the same time perfectly conserves angular momentum thanks to a generalised leap-frog integration scheme. We benchmark our implementation against many standard tests for relativistic hydrodynamics, either in one or three dimensions, and also test the ability to preserve the equilibrium solution of a Tolman-Oppenheimer-Volkoff compact star. In all the presented tests, the code performs extremely well, at a level at least comparable to other numerical techniques.
description: 17 pages, 15 figures, matches the published version
Long time behavior of run-and-tumble particles in two dimensions
Creators: name: Santra, Ion
name: Basu, Urna
name: Sabhapandit, Sanjib
Publisher: name: arXiv
Year: 2022
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We study the long-time asymptotic behavior of the position distribution of a run-and-tumble particle (RTP) in two dimensions and show that the distribution at a time $t$ can be expressed as a perturbative series in $(γt)^{-1}$, where $γ^{-1}$ is the persistence time of the RTP. We show that the higher order corrections to the leading order Gaussian distribution generically satisfy an inhomogeneous diffusion equation where the source term depends on the previous order solutions. The explicit solution of the inhomogeneous equation requires the position moments, and we develop a recursive formalism to compute the same.
description: 15 pages, 2 figures
title: Therapeutische intravitreale operative Medikamentenapplikation von Ocriplasmin (Jetrea ® ) – erste klinische Erfahrungen
Creators: name: Ernst, E.
name: Wildner, K.
name: Augsten, R.
Publisher: name: German Medical Science GMS Publishing House
Year: 2015
Subjects: subject: 610 Medical sciences; Medicine

description: Hintergrund: Seit Anfang 2013 ist das Medikament Ocriplasmin (Jetrea®) zur Behandlung bestimmter vitreomakulärer Erkrankungen zugelassen. Die intravitreale Injektion von Ocriplasmin stellt eine therapeutische Alternative zur vitreoretinalen Chirurgie dar. Methoden: Seit August 2013 führten[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 23. Jahrestagung der Gesellschaft der Augenärzte Sachsen-Anhalts und Thüringens
Degradación fotocatalitica de una tinta usada en la industria de impresión litográfica de cuadernos
Creators: name: Orozco González, Aarón
name: Ruíz Gómez, Leonardo José
Publisher: name: Universidad de Cartagena
Year: 2013
Subjects: Fotocatalisis
Catalisis

description: Tesis(Ingeniero Químico).-Universidad de Cartagena. Facultad de Ciencias E Ingenierías. Programa de Ingeniería Química,2013
description: En la industria litográfica BICO INTERNACIONAL S.A los efluentes residuales generados en el lavado de rodillos de impresión contienen residuos de la tinta industrial (Azul de Bazonyl 636) usada para el rayado de cuadernos. Esta tinta es perjudicial para el medio ambiente y es un riesgo potencial para la salud pública debido a los anillos aromáticos de su estructura química. Como alternativa de tratamiento de este contaminante, en este trabajo se evaluó la fotocatálisis solar heterogénea basada en TiO2 P25.Sellevó a cabo la degradación de la tinta industrial usando un reactor del tipo colector parabólico compuesto (CPC) y TiO2Evonik® P-25 en suspensión como catalizador. Los factores controlables considerados para el diseño experimental fueron: la dilución de la tinta y la concentración del catalizador. Para evaluar la incidencia de estos factores se desarrolló un análisis estadístico basado en el diagrama de Pareto y un ANOVA, una metodología de superficie de respuesta para optimizar el proceso en las condiciones de operación evaluadas y una cinética no-intrínseca de Langmuir-Hinshelwood (L-H) del proceso ya optimizado. Los resultados obtenidos de las pruebas experimentales, muestran que el mayor porcentaje de degradación fue de 21,94% con una dilución de tinta de 0,16 y una concentración de catalizador (TiO2) de 0,35 g/L. Mediante la metodología de superficie de respuesta se optimizó la degradación de la tinta y se obtuvo un porcentaje de degradación de 22.35% con una dilución de tinta de 0,17 y una concentración de catalizador de 0,36 g/L (TiO2). A partir de la cinética L-H no intrínseca, se obtuvo una expresión de pseudo-primer orden que describió satisfactoriamente la degradación de la tinta industrial.
12CO (3-2) High-Resolution Survey (COHRS) of the Galactic Plane: Complete Data Release
Creators: name: Park, Geumsook
name: Currie, Malcolm J.
name: Thomas, Holly S.
name: Rosolowsky, Erik
name: Dempsey, Jessica T.
name: Kim, Kee-Tae
name: Rigby, Andrew J.
name: Su, Yang
name: Eden, David J.
name: Colombo, Dario
name: Parsons, Harriet
name: Moore, Toby J. T.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present the full data release of 12CO (3-2) High-Resolution Survey (COHRS), which has mapped the inner Galactic plane over the range of 9.5$^{\circ}$ $\le$ l $\le$ 62.3$^{\circ}$ and $|b| \le 0.5^{\circ}$. The COHRS has been carried out using the Heterodyne Array Receiver Program (HARP) on the 15 m James Clerk Maxwell Telescope (JCMT) in Hawaii. The released data are smoothed to have a spatial resolution of 16.6 arcsec and a velocity resolution of 0.635 km/s, achieving a mean root-mean-square of $\sim 0.6$ K on $T_\mathrm{A}^*$. The COHRS data are useful for investigating detailed three-dimensional structures of individual molecular clouds and large-scale structures such as spiral arms in the Galactic plane. Furthermore, data from other available public surveys of different CO isotopologues and transitions with similar angular resolutions to this survey, such as FUGIN, SEDIGISM, and CHIMPS/CHIMPS2, allow studying the physical properties of molecular clouds and comparing their states with each other. In this paper, we report further observations on R2 and improved data reduction since the original COHRS release. We discuss the characteristics of the COHRS data and present integrated-emission images and a position-velocity (PV) map of the region covered. The PV map shows a good match with the spiral-arm traces from the existing CO and HI surveys. We also obtain and compare integrated one-dimensional distributions of 12CO (1-0) and (3-2) and those of star-forming populations to each other.
description: 29 pages, 13 figures, Accepted for publication in ApJS
Elaboración del manual de funciones y valoración de cargos de la procesadora de leche la Gran Via y CIA. Ltda
Creators: name: Ledesma Arroyo, Jorge Eliecer
name: Salcedo Franco, Silvio De Jesús
Publisher: name: Universidad de Cartagena
Year: 1989
Subjects: Manual de funciones - Procesadora de leche La Gran Via y CIA Ltda
Valoración de cargos
Análisis de cargo

description: Tesis (Administrador de Empresas).--Universidad de Cartagena. Facultad de Ciencias Económicas. Programa de Administración de Empresas, 1989
description: El presente estudio tiene por objeto dotar a la procesadora de leche la Gran Vía y Cía. Ltda. De las herramientas necesarias que hagan más funcional su administración.
Identification and characterisation of novel molecular regulators involved in phosphate metabolism in Arabidopsis thaliana
Creators: name: Linn, Joshua
Publisher: name: La Trobe
Year: 2023

description: Submission note: A thesis submitted in total fulfilment of the requirements for the degree of Doctor of Philosophy to the Department of Animal, Plant and Soil Sciences, School of Life Sciences, College of Science, Health and Engineering, La Trobe University, Bundoora.

Thesis with publications.
title: Kindliches Glaukom – kleiner Patient – große Herausforderung
Creators: name: Schuart, C.
name: Thieme, H.
Publisher: name: German Medical Science GMS Publishing House
Year: 2015
Subjects: subject: 610 Medical sciences; Medicine

description: Hintergrund: Knapp ein Jahr nach der offiziellen Eröffnung des Kinder-Glaukom-Zentrums der Augenklinik Magdeburg ist es Zeit ein erstes Resümee zu ziehen. Methoden: 53 Kinder aus dem gesamten Bundesgebiet mit Schwerpunkten Sachsen-Anhalt, Niedersachsen und Berlin werden bei uns aktuell [zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 23. Jahrestagung der Gesellschaft der Augenärzte Sachsen-Anhalts und Thüringens
Gravity as a Portal to Reheating, Leptogenesis and Dark Matter
Creators: name: Barman, Basabendu
name: Cléry, Simon
name: Co, Raymond T.
name: Mambrini, Yann
name: Olive, Keith A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We show that a minimal scenario, utilizing only the graviton as an intermediate messenger between the inflaton, the dark sector and the Standard Model (SM), is able to generate $simultaneously$ the observed relic density of dark matter (DM), the baryon asymmetry through leptogenesis, as well as a sufficiently hot thermal bath after inflation. We assume an inflaton potential of the form $V(ϕ)\propto ϕ^k$ about the minimum at the end of inflation. The possibility of reheating via minimal gravitational interactions has been excluded by constraints on dark radiation for excessive gravitational waves produced from inflation. We thus extend the minimal model in several ways: i) we consider non-minimal gravitational couplings--this points to the parameter range of DM masses $M_{N_1} \simeq 2-10 $ PeV, and right-handed neutrino masses $M_{N_2} \simeq (5-20) \times 10^{11}$ GeV, and $T_\text{rh} \lesssim 3 \times 10^5$ GeV (for $k \le 20$); ii) we propose an explanation for the PeV excess observed by IceCube when the DM has a direct but small Yukawa coupling to the SM; and iii) we also propose a novel scenario, where the gravitational production of DM is a two-step process, first through the production of two scalars, which then decay to fermionic DM final states. In this case, the absence of a helicity suppression enhances the production of DM and baryon asymmetry, and allows a great range for the parameters including a dark matter mass below an MeV where dark matter warmness can be observable by cosmic 21-cm lines, even when gravitational interactions are responsible for reheating. We also show that detectable primordial gravitational wave signals provide the opportunity to probe this scenario for $T_\text{rh}\lesssim 5\times 10^6$ GeV in future experiments, such as BBO, DECIGO, CE and ET.
description: 38 pages, 11 figures, 3 tables, Gravitational wave analysis added, version accepted for publication in JHEP
The Assessment of Peanut shell and Chat stem as Alternative Energy Source for Cement Industries
Creators: name: Birhan, Gebregziabher
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2018

description: Cement industries are one of the major energy-intensive industries and heavy polluting process. To reduce the energy cost and environmental impact, cement producers are currently using alternative fuels. This study analyzed the assessment of peanut shell and chat stem as alternative energy source for cement industries. The main objective of this study was to carbonized mixed of a peanut shell and chat stem. The parameters of carbonization process, which affect the calorific value such as temperature (350, 450 and, 450 o C), time (60, 90 and 120min) and mixing ratio (25, 50 and 75%) were optimized via Central Composite Design (CCD). All the necessary analysis that included physiochemical characteristics of peanut shell and chat stem, mixed carbonized and mixed carbonized pellet, then the results were compared with commercial coal. In addition, thermogravimetric analysis were examined the thermal property of peanut shell and chat stem. Based on the result, the optimal conditions were (temperature at 450 o C, time for 60min and mixed ratio 75%) with a maximum calorific value of 6552.6 Cal/g. However, the energy content of sample was comparable with coal, but it needs pellet for suitable storage, handling, transporting. Then the optimum mixed carbonized pellet with 10% of molasses, the calorie develop to 6838.19cal/g. The optimum mixed carbonized pellet showed a decrease in moisture content (2.87%), volatile content (30.75%), Hydrogen (2.95%) and Oxygen (26.19%) while the fixed carbon (57.57%), and carbon (70.86%) increased considerably. Therefore, in this study shows that the mixed carbonized pellet has potential replaced coal as an alternative energy source for cement production due to their calorific value at optimum carbonation condition.
Searching for magnetar powered merger-novae from short GRBs
Creators: name: Gao, He
name: Zhang, Bing
name: Lü, Hou-Jun
name: Li, Ye
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The merger of a double neutron star (NS-NS) binary may result in a rapidly rotating massive NS with an extremely strong magnetic field (i.e., a millisecond magnetar). In this case, the magnetic spin-down of the NS remnant provides an additional source of sustained energy injection, which would continuously power the merger ejecta. The thermal emission from the merger ejecta would give rise to a bright optical "magnetar-powered merger-nova". In this work, we carry out a complete search for magnetar-powered merger-nova from Swift short gamma-ray burst (SGRB) sample. We focus on short GRBs with extended emission or internal plateau, which may signify the presence of magnetars as the central engine. We eventually find three candidates of magnetar-powered merger-nova from the late observations of GRB 050724, GRB 070714B and GRB 061006. With standard parameter values, the magnetar remnant scenario could well interpret the multi-band data of all three bursts, including the extended emission and their late chromatic features in the optical and X-ray data. The peak luminosities of these merger-novae reach several times $10^{42}~{\rm erg~s^{-1}}$, more than one order of magnitude brighter than the traditional "kilo-novae" with peak luminosity of $\sim 10^{41}~{\rm erg~s^{-1}}$. Intense, multi-color late time observations of short GRBs are encouraged to identify more merger-novae in the future.
description: Match with published version: 2017, ApJ, 873, 50
title: Tumor! Oder doch nicht?
Creators: name: Jakob, J.
name: Voigt, U.
name: Wildner, K.
name: Augsten, R.
name: Bokemeyer, M.
name: Ries, B.G.
Publisher: name: German Medical Science GMS Publishing House
Year: 2015
Subjects: subject: 610 Medical sciences; Medicine

description: Hintergrund: Raumfordernde Prozesse von Choroidea bzw. Retina eröffnen ein weites Feld an möglichen pathophysiologischen Ursachen. Dazu gehört auch die Chorioretinitis. Dabei handelt es sich um eine Entzündung von Choroidea bzw. Retina mit vielfältiger infektiöser bzw. [zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 23. Jahrestagung der Gesellschaft der Augenärzte Sachsen-Anhalts und Thüringens
Optimization of Non-Equilibrium Self-Assembly Protocols Using Markov State Models
Creators: name: Trubiano, Anthony
name: Hagan, Michael F.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The promise of self-assembly to enable bottom-up formation of materials with prescribed architectures and functions has driven intensive efforts to uncover rational design principles for maximizing the yield of a target structure. Yet, despite many successful examples of self-assembly, ensuring kinetic accessibility of the target structure remains an unsolved problem in many systems. In particular, long-lived kinetic traps can result in assembly times that vastly exceed experimentally accessible timescales. One proposed solution is to design non-equilibrium assembly protocols in which system parameters change over time to avoid such kinetic traps. Here, we develop a framework to combine Markov state model (MSM) analysis with optimal control theory to compute a time-dependent protocol that maximizes the yield of the target structure at a finite-time. We present an adjoint-based gradient descent method that, in conjunction with MSMs for a system as a function of its control parameters, enables efficiently optimizing the assembly protocol. We also describe an interpolation approach to significantly reduce the number of simulations required to construct the MSMs. We demonstrate our approach on two examples; a simple semi-analytic model for the folding of a polymer of colloidal particles, and a more complex model for capsid assembly. Our results show that optimizing time-dependent protocols can achieve significant improvements in yields of selected structures, including equilibrium free energy minima, long-lived metastable structures, and transient states.
Auto-outlier Fusion Technique for Chest X-ray classification with Multi-head Attention Mechanism
Creators: name: Jing, Yuru
name: Li, Zixuan
Publisher: name: arXiv
Year: 2022
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: Methodology (stat.ME)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: A chest X-ray is one of the most widely available radiological examinations for diagnosing and detecting various lung illnesses. The National Institutes of Health (NIH) provides an extensive database, ChestX-ray8 and ChestXray14, to help establish a deep learning community for analysing and predicting lung diseases. ChestX-ray14 consists of 112,120 frontal-view X-ray images of 30,805 distinct patients with text-mined fourteen disease image labels, where each image has multiple labels and has been utilised in numerous research in the past. To our current knowledge, no previous study has investigated outliers and multi-label impact for a single X-ray image during the preprocessing stage. The effect of outliers is mitigated in this paper by our proposed auto-outlier fusion technique. The image label is regenerated by concentrating on a particular factor in one image. The final cleaned dataset will be used to compare the mechanisms of multi-head self-attention and multi-head attention with generalised max-pooling.
description: Accepted by the Journal of Image Processing Theory and Applications
Groebner Bases for Everyone with CoCoA-5 and CoCoALib
Creators: name: Abbott, John
name: Bigatti, Anna Maria
Publisher: name: arXiv
Year: 2016
Subjects: subject: Commutative Algebra (math.AC)
subject: Symbolic Computation (cs.SC)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 13P15, 13P10, 13-04, 14Q10, 68W30, 05E40, 68W24

description: We present a survey on the developments related to Groebner bases, and show explicit examples in CoCoA. The CoCoA project dates back to 1987: its aim was to create a "mathematician"-friendly computational laboratory for studying Commutative Algebra, most especially Groebner bases. Always maintaining this "friendly" tradition, the project has grown and evolved, and the software has been completely rewritten. CoCoA offers Groebner bases for all levels of interest: from the basic, explicit call in the interactive system CoCoA-5, to problem-specific optimized implementations, to the computer--computer communication with the open source C++ software library, CoCoALib, or the prototype OpenMath-based server. The openness and clean design of CoCoALib and CoCoA-5 are intended to offer different levels of usage, and to encourage external contributions.
description: 24 pages
Los talleres de formación-acción como una estrategia de intervención metodológica en trabajo social dentro de los programas de reubicación, relocalización y mejoramiento provisional de viviendas en zonas de riesgo de Cartagena de Indias, D. T. y C.
Creators: name: Mendoza Padilla, Víctor
Publisher: name: Universidad de Cartagena
Year: 1999
Subjects: Acción comunal
Trabajo social - Casos
Servicio social
Vivienda

description: Tesis (Trabajadora Social) -- Universidad de Cartagena. Facultad de Ciencias Sociales y Educación. Programa de Trabajo Social, 1999
description: Maximizar los recursos propios de esta comunidad, inmersa dentro de un proyecto de relocalización y mejoramiento provisional de viviendas dirigidos de Corvivienda a través de un equipo de trabajo.
Complementary astrometry of Cassini Imaging Science Subsystem Images of Phoebe
Creators: name: Zhang, Q. F.
name: Qin, W. H.
name: Ma, Y. L.
name: Lainey, V.
name: Cooper, N. J.
name: Rambaux, N.
name: Li, Y.
name: Zhu, W. H.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Phoebe is the only major satellite of Saturn with a retrograde orbit. The Cassini Imaging Science Subsystem (ISS) took a lot of Phoebe images between 2004 and 2017, but only a selection of them has been reduced. In this paper, we reduced the remaining ISS images of Phoebe. In the reduction, the Gaia EDR3 catalogue was used to provide the reference stars' positions, and the modified moment was used to measure the centre of image stars and Phoebe. Finally, a total of 834 ISS images of Phoebe have been reduced successfully. Compared with the JPL ephemeris SAT375, Phoebe's positions are consistent. The average residuals in the right ascension and declination are 0.08" and $-0.05$", and the standard deviations of the residuals are about 0.2". In terms of residuals in linear units, the means in the right ascension and declination are about 5 km and $-2$ km, respectively; The standard deviations are about 11 km. Compared with the JPL ephemeris SAT427 and IMCCE ephemeris PH20, our measurements show a strong bias and a large dispersion.
description: 8 Pages, 5 figures, Journal article
Determining the spin of light primordial black holes with Hawking radiation
Creators: name: Calzà, Marco
name: Rosa, João G.
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We propose a method to determine the mass and spin of primordial black holes (PBHs) in the mass range $5\times 10^7-10^{12}$ kg (Hawking temperatures $\sim10$ MeV $-200$ GeV), based on measuring the energy of specific features in the photon Hawking emission spectrum, including both primary and secondary components. This is motivated by scenarios where PBHs in this mass range spin up as they evaporate, namely the string axiverse, where dimensionless spin parameters $\tilde{a}\sim 0.1-0.5$ can be achieved through the Hawking emission of hundreds or even thousands of light axion-like particles. Measuring the present PBH mass-spin distribution may thus be an important probe of physics beyond the Standard Model. Since the proposed method relies on the energy of the photons emitted by a given PBH, rather than on the associated flux, it is independent of the PBH-Earth distance and, as a byproduct, can also be used to infer the latter.
description: 19 pages, 13 figures
Impacts of HIV/AIDS project on Livelihoods and Food Security in Addis Ababa Ethiopia
Creators: name: Hailemariam, Lamrot
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2018

description: Urban poverty is a widely and deep-rooted problem in both large and small cities of Ethiopian urban areas. Focus on people living below the poverty line, and livelihood support aims to diversify and improve household level income in the long run considered as core principles for reducing vulnerability and poverty, and promoting more productive livelihoods. Therefore, Economic Strengthening (ES) intervention were implemented under Urban HIV and AIDS and Nutrition and Food Security (UHANFS) project towns, where Dessie city became the one to be covered by the program; and also purposefully selected for this evaluative study. The major objective of this research was to assess effectiveness of the ES intervention towards achieving food security and poverty reduction of its project participants. To conduct the study, from total 325 ES participants, 180 of them selected using Multistage systematic random sampling from project that already received full package of the intervention. The ES component of Urban HIV and AIDS Nutrition and Food Security Project (UHANFS) has the objective to help households impacted by HIV and AIDS promote their livelihood and achieve food security. PLHIV identified based on a set of criteria undergo a vulnerability assessment at the time they join the project. The assessment provides information on the status of PLHIV and the mode of economic assistance that should be provided for each target beneficiary To determine change on food security status, food consumption score (FCS) method was used as a tool to categorize by four FS status; and to assess status of poverty, poverty line against income per person per day using World Bank's Purchasing-Power Parity (PPP) conversion was administered, which become 13.87 ETB as cut-off point
On anisotropic two-fluid stellar objects in General Relativity
Creators: name: Naidu, Nolene F.
name: Carloni, Sante
name: Dunsby, Peter
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We apply the 1+1+2 covariant semi-tetrad approach to describe a general static and spherically symmetric relativistic stellar object which contains two fluids with anisotropic pressure. The corresponding Tolman-Oppenheimer-Volkoff equations are then obtained in covariant form for the anisotropic case. These equations are used to obtain new exact solutions using direct resolution and reconstruction techniques. Finally, we show that three of the generating theorems known for the single fluid case can also be used to obtain two-fluid solutions from single fluid ones.
description: 27 pages, 23 figures
Explicit calculation of multi-fold contour integrals of certain ratios of Euler gamma functions. Part 1
Creators: name: Gonzalez, Ivan
name: Kniehl, Bernd A.
name: Kondrashuk, Igor
name: Notte-Cuello, Eduardo A.
name: Parra-Ferrada, Ivan
name: Rojas-Medar, Marko A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences
subject: 44A15, 44A20, 81Q35, 30E20, 33B15, 33B30

description: In this paper we proceed to study properties of Mellin-Barnes (MB) transforms of Usyukina-Davydychev (UD) functions. In our previous papers [Nuclear Physics B 870 (2013) 243], [Nuclear Physics B 876 (2013) 322] we showed that multi-fold Mellin-Barnes (MB) transforms of Usyukina-Davydychev (UD) functions may be reduced to two-fold MB transforms and that the higher-order UD functions were obtained in terms of a differential operator by applying it to a slightly modified first UD function. The result is valid in $d=4$ dimensions and its analog in $d=4-2\varepsilon$ dimensions exits too [Theoretical and Mathematical Physics 177 (2013) 1515]. In [Nuclear Physics B 870 (2013) 243] the chain of recurrent relations for analytically regularized UD functions was obtained implicitly by comparing the left hand side and the right hand side of the diagrammatic relations between the diagrams with different loop orders. In turn, these diagrammatic relations were obtained due to the method of loop reduction for the triangle ladder diagrams proposed in 1983 by Belokurov and Usyukina. Here we reproduce these recurrent relations by calculating explicitly via Barnes lemmas the contour integrals produced by the left hand sides of the diagrammatic relations. In such a way we explicitly calculate a family of multi-fold contour integrals of certain ratios of Euler gamma functions. We make a conjecture that similar results for the contour integrals are valid for a wider family of smooth functions which includes the MB transforms of UD functions.
description: 7 pages, 1 figure, minor changes in the text; accepted for publication in Nuclear Physics B
Coherent spin dynamics of excitons in strained monolayer semiconductors
Creators: name: Glazov, M. M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We develop a model of the coherent exciton spin-valley dynamics in two-dimensional transition metal dichalcogenides under elastic strain. The strain splits the exciton radiative doublet in linearly polarized states. Consequently, it induces an effective magnetic field acting on the exciton pseudospin and causes its precession. As a result, under circularly polarized excitation, the circular polarization of excitons oscillates with time, also a time-oscillating linear polarization appears. We study competition of the strain-induced effective magnetic field with the field caused by the exciton longitudinal-transverse splitting. We uncover different regimes of coherent spin dynamics of two-dimensional excitons. In particular, we show that for sufficiently large strain-induced and longitudinal-transverse splittings two frequencies related to these splittings appear in the exciton circular polarization beats.
description: 9 pages, 3 figures, for the Physical Review B special issue "Spin-Coherent Phenomena in Semiconductors" in honor of E. I. Rashba
title: Μελέτη επιπολασμού και επίπτωσης του θεραπευτικού πρωτοκόλλου της δυσλιπιδαιμίας στην Ελλάδα με βάση τα δεδομένα του συστήματος της ηλεκτρονικής συνταγογράφησης
title: Prevalence and incidence study of the therapeutic protocol of dyslipidemia in Greece based on the data of the electronic prescription system
titleType: AlternativeTitle
Creators: name: Μαθιουδάκης, Κωνσταντίνος
Publisher: name: Πανεπιστήμιο Δυτικής Αττικής
Year: 2023
Subjects: Δυσλιπιδαιμία
Επιπολασμός
Στατίνες

description: Σκοπός: Η μελέτη του συνολικού επιπολασμού της δυσλιπιδαιμίας , η μελέτη της ταξινόμησης κατά φύλο και ηλικιακή ομάδα καθώς και η εκτίμηση των θεραπευτικών επιλογών των ασθενών της νόσου ανά βήμα θεραπείας του αντίστοιχου θεραπευτικού πρωτοκόλλου με βάση δεδομένα του έτους 2021. Επίσης, η μελέτη της επίπτωσης της δυσλιπιδαιμίας, η μελέτη της ταξινόμησης κατά φύλο και ηλικιακή ομάδα, καθώς και η εκτίμηση των θεραπευτικών επιλογών των ασθενών της νόσου ανά βήμα θεραπείας με βάση δεδομένα του έτους 2021. Τέλος, η μελέτη του κόστους των θεραπευτικών επιλογών της νόσου ανά βήμα θεραπείας του πρωτοκόλλου καθώς και η καταγραφή των ιατρικών ειδικοτήτων που αντιμετωπίζουν τους ασθενείς της νόσου. Υλικό-Μέθοδος: Το υλικό της μελέτης αποτέλεσε η βάση δεδομένων της Ηλεκτρονικής Συνταγογράφησης η οποία ως γνωστόν είναι σε λειτουργία από το 2011 και από το 2020 περιλαμβάνει το σύνολο σχεδόν του ελληνικού πληθυσμού. Ως εκ τούτου, το δείγμα της μελέτης αποτελεί το σύνολο του πληθυσμού της χώρας και όχι κάποιο περιορισμένο αριθμό ασθενών. Αποτελέσματα: Το αποτέλεσμα της έρευνας είναι η πλήρης αποτύπωση του επιπολασμού και της επίπτωσης της νόσου της δυσλιπιδαιμίας στον ελληνικό πληθυσμό για το έτος 2021 με βάση τα στάδια της νόσου και των θεραπευτικών επιλογών αντιμετώπισής της. Ενδεικτικά αναφέρω παρακάτω κάποια από τα ευρήματα της έρευνας. Οι καταγεγραμμένοι ασθενείς κατά το 2021 φτάνουν το πλήθος των 2 εκατομμυρίων ενώ οι ασθενείς που διαγνώσθηκαν για πρώτη φορά με τη νόσο φτάνουν τους 250.000. Ως προν την ηλικιακή κατανομή, όπως ήταν αναμενόμενο, η μεγαλύτερη συγκέντρωση παρατηρείται μεταξύ της ηλικίας των 50 και 80. Στο σύνολο της επικράτειας διαπιστώνεται μια διείσδυση της νόσου περίπου στο 15% για κάθε περιφερειακή ενότητα με ελάχιστες εξαιρέσεις. Σε σχέση με το πρωτόκολλο, οι περισσότεροι ασθενείς εμφανίζονται στο 3ο βήμα και ακολουθεί το 4ο βήμα, με αντίστοιχο επιμερισμό της δαπάνης των θεραπειών για τη νόσο. Τέλος, παρατίθεται η διατύπωση κάποιων προτάσεων για τη βελτίωση και αυτοματοποίηση του θεραπευτικού πρωτοκόλλου της νόσου.