cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Apparent disk-mass reduction and planetesimal formation in gravitationally unstable disks in Class 0/I YSOs
Creators: name: Tsukamoto, Y.
name: Okuzumi, S.
name: Kataoka, A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We investigate the dust structure of gravitationally unstable disks undergoing mass accretion from the envelope envisioning the application to Class 0/I young stellar objects (YSOs) We find that the dust disk quickly settles into a steady state and that, compared to a disk with interstellar medium (ISM) dust-to-gas mass ratio and micron-sized dust, the dust mass in the steady-state decreases by a factor of 1/2 to 1/3, and the dust thermal emission decreases by a factor of 1/3 to 1/5. The latter decrease is caused by dust depletion and opacity decrease owing to dust growth. Our results suggest that the masses of gravitationally unstable disks in the Class 0/I YSOs are underestimated by a factor of 1/3 to 1/5 when calculated from the dust thermal emission assuming an ISM dust-to-gas mass ratio and micron-sized dust opacity, and that a larger fraction of disks in Class 0/I YSOs is gravitationally unstable than was previously believed. We also investigate the orbital radius $r_{\rm P}$ within which planetesimals form via coagulation of porous dust aggregates and show that $r_{\rm P}$ becomes $\sim 20$ AU for a gravitationally unstable disk around a solar mass star. Because $r_{\rm P}$ increases as the gas surface density increases and a gravitationally unstable disk has a maximum gas surface density, $r_{\rm P}\sim 20$ AU is the theoretical maximum radius. We suggest that planetesimals formation in the Class 0/I phase is preferable to that in the Class II phase because large gas surface density is expected and large amount of dust is supplied by envelope-to-disk accretion.
description: 25 pages, 13 figures, accepted for publication in ApJ. The reference is modified. Comments are welcome
Assessment of Project Management Maturity Level of Commercial Bank of Ethiopia
Creators: name: Ejigu, Abraham
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2017

description: In today's dynamic and complex business environment, organizations find themselves in a need to manage projects whether they are project driven or non-project driven organizations. However the practice of project management has to be improved to realize its benefits. The main purpose of this research project was to assess the project management maturity level of PMO of Commercial Bank of Ethiopia. The maturity assessment was based on a five level project management maturity model devised by PM Solutions. To assess the project management practice of the projects, nine knowledge areas were selected from the project management body of knowledge guide. The research employed both qualitative and quantitative research methods to realize the purpose of the study. Hence, a questionnaire was devised based on reviewed literature to assess the practice of the knowledge areas. The collected data was triangulated with data obtained from other secondary sources and analyzed. Based on the analysis, the researcher concluded that most of the knowledge areas were being practiced informally. The knowledge areas also have lower maturity levels. Relatively some of the knowledge areas have higher maturity as compared to the others. This difference was traced back to already established processes and practices the bank uses in its operations. But lack of proper integration of these practices with project management practice has lowered the maturity level of the project management practice at the bank. Developing and practicing project management knowledge areas; devising procedures; carefully collecting, compiling and disseminating lessons learned from past project implementation; creating project management standards; and creating awareness among all stakeholders towards projects; strengthening the PMO's human and other resources; and providing trainings have been recommended as a means of improving project management practice and attaining higher maturity
The Development and Evaluation of Novel Radiolabeled Niosomes as Potential Nano-carriers for Biodistribution Studies in Breast Cancer Murine Xenografts
Creators: name: LEANNE SABRINA DE SILVA
Publisher: name: Monash University
Year: 2018
Subjects: subject: 100708 Nanomaterials
subject: FOS: Nanotechnology

description: Recent advancements in nanotechnology have provided a promising approach in cancer therapy through the development of nano-carriers. Niosomes are a type of nano-carrier that has been gaining popularity due to their unique features which make them favourable for the controlled delivery of drugs to cancer sites. This thesis examines the distribution of niosomes in breast cancer-bearing mice through the use of nuclear imaging devices to determine the accumulation of niosomes within the tumour site and each organ.
Misiones, educación y nación en la Guajira, 1880-1930. El caso del orfanato de San Antonio
Creators: name: Espriella Hinestroza, Zandra Maribel De La
Publisher: name: Universidad de Cartagena
Year: 2008
Subjects: Guajira,1880 - 1930 - Historia - Colombia

description: Tesis (Historiadora) - - Universidad de Cartagena. Facultad de Ciencias Humanas. Programa de Historia, 2008
description: Importancia de la educación como fin y medio asociado al control estatal en un espacio considerado como nacional, señalando las disposiciones que con referencia la grupo humano asumen los misioneros y las fundaciones de instituciones llamadas orfanatos y luego internados, con estas distintas transformaciones a nivel político que sufre el territorio de la Guajira, las disposiciones constitucionales que redefinían las diferentes jurisdicciones, controlando y administrando, cada una para no tener problemas con los empleados públicos.
Low-energy Properties of Electrons and Holes in CuFeS$_2$
Creators: name: Brekke, Bjørnulf
name: Malyshev, Roman
name: Svenum, Ingeborg-Helene
name: Selbach, Sverre M.
name: Tybell, Thomas
name: Brüne, Christoph
name: Brataas, Arne
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The antiferromagnetic semiconductor CuFeS$_2$ belongs to a magnetic symmetry class that is of interest for spintronics applications. In addition, its crystal lattice is compatible with Si, making it possible to integrate it with non-magnetic semiconducting structures. Therefore, we investigate this material by finding the effective $\boldsymbol{k}\cdot\boldsymbol{p}$ Hamiltonian for the electron- and hole bands. We base this description on \textit{ab initio} calculations and classify the electronic bands by their symmetry. As a result, we find that CuFeS$_2$ exhibits spin-polarized bands and an anomalous Hall effect. Finally, we suggest using cyclotron resonance to verify our proposed effective mass tensors at the conduction band minimum and valence band maximum.
description: 13 pages, 8 figures
$\texttt{Hi-COLA}$: Fast, approximate simulations of structure formation in Horndeski gravity
Creators: name: Wright, Bill S.
name: Gupta, Ashim Sen
name: Baker, Tessa
name: Valogiannis, Georgios
name: Fiorini, Bartolomeo
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We introduce $\texttt{Hi-COLA}$, a code designed to run fast, approximate $\textit{N}$-body simulations of non-linear structure formation in reduced Horndeski gravity. Given an input Lagrangian, $\texttt{Hi-COLA}$ dynamically constructs the appropriate field equations and consistently solves for the cosmological background, linear growth, and screened fifth force of that theory. Hence $\texttt{Hi-COLA}$ is a general, adaptable, and useful tool that allows the mildly non-linear regime of many Horndeski theories to be investigated for the first time, at low computational cost. In this work, we first describe the screening approximations and simulation setup of $\texttt{Hi-COLA}$ for theories with Vainshtein screening. We validate the code against traditional $\textit{N}$-body simulations for cubic Galileon gravity, finding $2.5\%$ agreement up to $k_{\rm max}=1.2~h/{\rm Mpc}$. To demonstrate the flexibility of $\texttt{Hi-COLA}$, we additionally run the first simulations of an extended shift-symmetric gravity theory. We use the consistency and modularity of $\texttt{Hi-COLA}$ to dissect how the modified background, linear growth, and screened fifth force all contribute to departures from $Λ$CDM in the non-linear matter power spectrum. $\texttt{Hi-COLA}$ can be found at https://github.com/Hi-COLACode/Hi-COLA .
description: 51 pages, 20 figures, 5 tables, comments welcome. Updated to match the version published in JCAP
Auxiliary fermion approach to the RIXS spectrum in a doped cuprate
Creators: name: Shi, Yifei
name: James, Andrew
name: Demler, Eugene
name: Klich, Israel
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We describe a method for calculating the resonant inelastic X-ray scattering (RIXS) response---including the dynamics of the transient core hole---of many-body systems with non-trivial gap structure encoded in their single particle Green's function. Our approach introduces auxiliary fermions in order to obtain a form amenable to the determinant method of Benjamin et al. [PRL 112 247002 (2014)], and is applicable to systems where interactions are most strongly felt through a renormalization of the single particle propagator. As a test case we consider the Yang Rice Zhang ansatz describing cuprate phenomena in the underdoped `pseudogap' regime, and show that including the core hole dynamics pushes the RIXS peaks towards higher energy transfer, improving agreement with experiments.
description: Significantly rewritten, including elucidating the connection to previous calculations that do not include the core hole. Figures have also been updated
title: Die Bedeutung des Medizinstudiums für die ländliche Versorgung: Internationale Erfahrungen
Creators: name: Holst, J.
name: Herrmann, M.
Publisher: name: German Medical Science GMS Publishing House
Year: 2015
Subjects: subject: Landärztemangel
subject: Literaturstudie
subject: Medizinstudium
subject: 610 Medical sciences; Medicine

description: Hintergrund: Auch in Deutschland stehen die zunehmende Ungleichverteilung der ambulant tätigen ÄrztInnen und der Ärztemangel auf dem Land auf der gesundheitspolitischen Tagesordnung. Maßnahmen zur Sicherstellung der medizinischen Versorgung auf dem Land sind dringend erforderlich.[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 49. Kongress für Allgemeinmedizin und Familienmedizin
Realizing Haldane Model in Fe-based Honeycomb Ferromagnetic Insulators
Creators: name: Kim, Heung-Sik
name: Kee, Hae-Young
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The topological Haldane model (THM) on a honeycomb lattice is a prototype of systems hosting topological phases of matter without external fields. It is the simplest model exhibiting the quantum Hall effect without Landau levels, which motivated theoretical and experimental explorations of topological insulators and superconductors. Despite its simplicity, its realization in condensed matter systems has been elusive due to a seemingly difficult condition of spinless fermions with sublattice-dependent magnetic flux terms. While there have been theoretical proposals including elaborate atomic-scale engineering, identifying candidate THM materials has not been successful, and the first experimental realization was recently made in ultracold atoms. Here we suggest that a series of Fe-based honeycomb ferromagnetic insulators, AFe2(PO4)2 (A=Ba,Cs,K,La) possess Chern bands described by the THM. How to detect the quantum anomalous Hall effect is also discussed.
description: 5 pages, 3 figures, and 1 table
Apuntes sobre sucesión testamentaria
Creators: name: Morales Zapa, Victor Alejandro
Publisher: name: Universidad de Cartagena
Year: 1971
Subjects: Sucesiones - Legislación - Colombia

description: Tesis (Abogado) -- Universidad de Cartagena. Facultad de Derecho y Ciencias Políticas. Programa de Derecho, 1971
description: Cuestiones fundamentales de la estructura jurídica de un país, son las que atañen, el derecho de heredar, y a sus normas reguladoras, donde estas se transmiten sus herederos después de la muere.
Factors Affecting Success of Projects in Addis Ababa City Roads Authority
Creators: name: Tena, Tigist
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2017

description: The objective of this study is to identify the causes behind the observed project delays, project cost overruns and quality problems of the project deliverables of Addis Ababa City Roads Authority. Moreover, providing a framework that will be used to improve the future performance of projects at the authority was also intended. The study has utilized primary and secondary data sources. Primary data has been collected through questionnaire and interviews while secondary data was collected through a documentation review of progress and completion reports of the authority. Descriptive analysis was used to analyze the data collected. The factors affecting the three success dimensions were identified through the questionnaires and interviews. Accordingly, the major factors identified as affecting project delays were found to be poor coordination with other stakeholders (including EEPCO, ETC and AAWSA), Delays in administration of right of way obstruction removal, delay in provision of resources and machineries and design and scope changes. On the other hand, Project cost overruns of the authority has been found to be mostly influenced by penalty, claims and overhead costs in relation to project delays, poor coordination between stakeholders resulting Reworks and misalignment and inadequate planning and scope changes. Quality problems of AACRA's project deliverables of projects are basically caused by lack of complete and updated quality policy and quality assurance manuals, Poor quality of construction materials, Poor coordination with other stakeholders and Lack of skilled and committed manpower to quality. Besides, the study has revealed that though projects undertaken by AACRA are mostly subjected to scope and design changes, the authority has no strategy towards change management and this is resulting costly way of incorporating changes. Lessons learned from past projects and documentation practice of AACRA were as well found to be poor resulting in difficulty to trace progress of ongoing projects and rising the probability that mistakes will be repeated in future projects. Finally, based on the other factors identified to be affecting the success of projects in the authority, recommendations were forwarded and a framework which can be utilized to improve AACRA's project performance was developed.
Hierarchical Capsule Prediction Network for Marketing Campaigns Effect
Creators: name: Chu, Zhixuan
name: Ding, Hui
name: Zeng, Guang
name: Huang, Yuchen
name: Yan, Tan
name: Kang, Yulin
name: Li, Sheng
Publisher: name: arXiv
Year: 2022
Subjects: subject: Machine Learning (stat.ML)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Marketing campaigns are a set of strategic activities that can promote a business's goal. The effect prediction for marketing campaigns in a real industrial scenario is very complex and challenging due to the fact that prior knowledge is often learned from observation data, without any intervention for the marketing campaign. Furthermore, each subject is always under the interference of several marketing campaigns simultaneously. Therefore, we cannot easily parse and evaluate the effect of a single marketing campaign. To the best of our knowledge, there are currently no effective methodologies to solve such a problem, i.e., modeling an individual-level prediction task based on a hierarchical structure with multiple intertwined events. In this paper, we provide an in-depth analysis of the underlying parse tree-like structure involved in the effect prediction task and we further establish a Hierarchical Capsule Prediction Network (HapNet) for predicting the effects of marketing campaigns. Extensive results based on both the synthetic data and real data demonstrate the superiority of our model over the state-of-the-art methods and show remarkable practicability in real industrial applications.
description: Proceedings of the 31st ACM International Conference on Information and Knowledge Management (CIKM '22)
Structural relaxation, dynamical arrest and aging in soft-sphere liquids
Creators: name: Mendoza-Méndez, Patricia
name: Peredo-Ortiz, Ricardo
name: Lázaro, Edilio Lázaro
name: Chávez-Paez, M.
name: Pacheco-Vázquez, F.
name: Medina-Noyola, M.
name: Elizondo-Aguilera, L. F.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We investigate the structural relaxation of a soft-sphere liquid quenched isochorically ($ϕ=0.7$) and instantaneously to different temperatures $T_f$ above and below the glass transition. For this, we combine extensive Brownian dynamics simulations and theoretical calculations based on the non-equilibrium self-consistent generalized Langevin equation (NE-SCGLE) theory. The response of the liquid to a quench generally consists of a sub-linear increase of the $α$-relaxation time with system's age. Approaching the ideal glass-transition temperature from above ($T_f>T^a$) sub-aging appears as a transient process describing a broad equilibration crossover for quenches to nearly arrested states. This allows us to empirically determine an equilibration timescale $t^{eq}(T_f)$ that becomes increasingly longer as $T_f$ approaches $T^a$. For quenches inside the glass ($T_f\leq T^a$) the growth rate of the structural relaxation time becomes progressively larger as $T_f$ decreases and, unlike the equilibration scenario, $τ_α$ remains evolving within the whole observation time-window.These features are consistently found in theory and simulations with remarkable semi-quantitative agreement, and coincide with those revealed in the similar and complementary exercise [Phys. Rev. {\bf 96}, 022608 (2017)] that considered a sequence of quenches with fixed final temperature $T_f=0$ but increasing $ϕ$ towards the hard-sphere dynamical arrest volume fraction $ϕ^a_{HS}=0.582$. The NE-SCGLE analysis, however, unveils various fundamental aspects of the glass transition, involving the abrupt passage from the ordinary equilibration scenario to the persistent aging effects that are characteristic of glass-forming liquids. The theory also explains that, within the time window of any experimental observation, this can only be observed as a continuous crossover.
Fan realizations for some 2-associahedra
Creators: name: Manneville, Thibault
Publisher: name: arXiv
Year: 2016
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 52B11, 52B12, 52B40, 05E45

description: A~$k$-associahedron is a simplicial complex whose facets, called~$k$-triangulations, are the inclusion maximal sets of diagonals of a convex polygon where no~$k+1$ diagonals mutually cross. Such complexes are conjectured for about a decade to have realizations as convex polytopes, and therefore as complete simplicial fans. Apart from four one-parameter families including simplices, cyclic polytopes and classical associahedra, only two instances of multiassociahedra have been geometrically realized so far. This paper reports on conjectural realizations for all~$2$-associahedra, obtained by heuristic methods arising from natural geometric intuition on subword complexes. Experiments certify that we obtain fan realizations of~$2$-associahedra of an~$n$-gon for~$n\in\{10,11,12,13\}$, further ones being out of our computational reach.
description: 24 pages, 17 figures, 7 tables, source code added and reference to it in the paper
Supporting Earth, space, and environmental science researchers in adopting open science, data and software practices
Creators: name: Vrouwenvelder, Kristina
name: Stall, Shelley
name: Sedora, Brian
Publisher: name: Zenodo
Year: 2023
Subjects: data sharing
FAIR data
open science

description: Poster presented at the 2023 Earth Space Information Partners July meeting in Burlington, VT. The American Geophysical Union is committed to leading in open science, data and software while maintaining high standards of quality and scientific integrity. In collaboration with the AGU community and organizations such as ESIP, AGU works towards the culture change needed for the preservation of research data and software with appropriate curation, credit and attribution, through mechanisms including policy change, incentives and education. Here, we present and solicit feedback on changes we've observed in researcher preservation of data and software in tandem with new AGU Publishing policies on data and software sharing and discuss further directions we're undertaking to support open science, data and software in the Earth, space, and environmental sciences.
Electronic assistive technology in community living: understanding the experiences of people with high daily support needs resulting from acquired brain disorders
Creators: name: REBECCA JANE JAMWAL
Publisher: name: Monash University
Year: 2018
Subjects: Disability Studies

description: This research investigated the electronic assistive technology (EAT) uptake of people with acquired brain disorders living in shared supported accommodation (SSA) – a prevalent supported living option for this group in Australia. EAT includes both devices and systems used by the general population, and those specifically developed for people with disability. Findings indicate that less than half (46%) of the Victorian SSA population surveyed use any form of EAT, illustrating significant gaps in technology-related integration between this group, and the wider community. The research identified a number of barriers to EAT uptake that need to be addressed to bridge this divide.
On the inequivalence of the CH and CHSH inequalities due to finite statistics
Creators: name: Renou, Marc-Olivier
name: Rosset, Denis
name: Martin, Anthony
name: Gisin, Nicolas
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Different variants of a Bell inequality, such as CHSH and CH, are known to be equivalent when evaluated on nonsignaling outcome probability distributions. However, in experimental setups, the outcome probability distributions are estimated using a finite number of samples. Therefore the nonsignaling conditions are only approximately satisfied and the robustness of the violation depends on the chosen inequality variant. We explain that phenomenon using the decomposition of the space of outcome probability distributions under the action of the symmetry group of the scenario, and propose a method to optimize the statistical robustness of a Bell inequality. In the process, we describe the finite group composed of relabeling of parties, measurement settings and outcomes, and identify correspondences between the irreducible representations of this group and properties of outcome probability distributions such as normalization, signaling or having uniform marginals.
description: 27 pages, 12 figures
The Identification of a Dusty Multiarm Spiral Galaxy at $z=3.06$ with JWST and ALMA
Creators: name: Wu, Yunjing
name: Cai, Zheng
name: Sun, Fengwu
name: Bian, Fuyan
name: Lin, Xiaojing
name: Li, Zihao
name: Li, Mingyu
name: Bauer, Franz E.
name: Egami, Eiichi
name: Fan, Xiaohui
name: González-López, Jorge
name: Li, Jianan
name: Wang, Feige
name: Yang, Jinyi
name: Zhang, Shiwu
name: Zou, Siwei
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Spiral arms serve crucial purposes in star formation and galaxy evolution. In this paper, we report the identification of A2744-DSG-$z3$, a dusty, multiarm spiral galaxy at $z=3.059$ using the James Webb Space Telescope (JWST) NIRISS imaging and grism spectroscopy. A2744-DSG-$z3$ was discovered as a gravitationally lensed sub-millimeter galaxy with ALMA. This is the most distant stellar spiral structure seen thus far, consistent with cosmological simulations which suggest $z\approx3$ as the epoch when spirals emerge. Thanks to the gravitational lensing and excellent spatial resolution of JWST, the spiral arms are resolved with a spatial resolution of $\approx290$\,pc. Based on SED fitting, the spiral galaxy has a de-lensed star formation rate of $85\pm30 \ M_{\odot}$ yr$^{-1}$, and a stellar mass of $\approx10^{10.6}\ M_{\odot}$, indicating that A2744-DSG-$z3$ is a main-sequence galaxy. After fitting the spiral arms, we find a stellar effective radius ($R_{e, \rm{star}}$) of $5.0\pm1.5$ kpc. Combing with ALMA measurements, we find that the effective radii ratio between dust and stars is $\approx0.4$, similar to {those} of massive SFGs at $z\sim2$, indicating a compact dusty core in A2744-DSG-$z3$. Moreover, this galaxy appears to be living in a group environment: including A2744-DSG-$z3$, at least three galaxies at $z=3.05 - 3.06$ {are} spectroscopically confirmed by JWST/NIRISS and ALMA, residing within a lensing-corrected projected scale of $\approx 70$ kpc. This, along with the asymmetric brightness profile, further suggests that the spiral arms may be triggered by minor merger events at $z\gtrsim3$.
description: Main text 9 pages, four figures in the main text, and three figures in the appendix; accepted for publication by ApJL
title: Bereitschaftsdienst in Deutschland – Inanspruchnahme von Patienten mit geringfügigen Beschwerden?
Creators: name: Leutgeb, R.
name: Engeser, P.
name: Szecsenyi, J.
name: Laux, G.
Publisher: name: German Medical Science GMS Publishing House
Year: 2015
Subjects: subject: Beratungsanlass
subject: Bereitschaftsdienst
subject: Dienstbelastung für im Bereitschaftsdienst tätige Ärzte
subject: 610 Medical sciences; Medicine

description: Hintergrund: In verschiedenen nationalen und internationalen Studien wurde darauf hingewiesen, dass die am primärärztlichen Bereitschaftsdienst teilnehmenden Ärzte eine zu hohe Dienstbelastung beklagen, unter anderem auch wegen eines inadäquaten Inanspruchnahmeverhaltens der Patienten.[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 49. Kongress für Allgemeinmedizin und Familienmedizin
Diagnóstico empresarial de la Cooperativa Bolivarense de Sub-oficiales de las fuerzas militares en retiro Ltda Cooabolsure Ltda
Creators: name: Simancas Castro, Shirley
name: Pájaro Zarpardiel, Yessenia
Publisher: name: Universidad de Cartagena
Year: 2008
Subjects: Cooperativas - Colombia
Cooabolsure - Cartagena - Bolívar
Diagnóstico empresarial

description: Tesis (Administrador de Empresas).--Universidad de Cartagena. Facultad de Ciencias Económicas. Programa de Administración de Empresas, 2008
description: El presente estudio tiene por objeto diseñar un diagnóstico empresarial para la Cooperativa Cooabolsure Ltda que le sirva de fundamentación en la elaboración del plan de desarrollo 2008 - 2011 de la institución.
Anestesia general balanceada modulada por fenómenos acústicos: efecto en los requerimientos de propofol en la inducción de la anestesia (AGB-MoFA II)
Creators: name: Bustamante González, Daniel Andrés
Publisher: name: Universidad de Cartagena
Year: 2016
Subjects: Anestesia dental
Anestesiología

description: Tesis (Especialista en Anestesiología y Reanimación). -- Universidad de Cartagena, Facultad de Medicina. Departamento Quirúrgico, 2016.
description: Este trabajo de grado se enfoco de determinar el efecto de la modulación por fenómenos acústicos en los requerimientos de Propofol, como inductor de la anestesia general balanceada.
A negative imaginary approach to hybrid integrator-gain system control
Creators: name: Shi, Kanghong
name: Nikooienejad, Nastaran
name: Petersen, Ian R.
name: Moheimani, S. O. Reza
Publisher: name: arXiv
Year: 2022
Subjects: subject: Systems and Control (eess.SY)
subject: Optimization and Control (math.OC)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Mathematics

description: In this paper, we show that a hybrid integrator-gain system (HIGS) is a nonlinear negative imaginary (NNI) system. We prove that the positive feedback interconnection of a linear negative imaginary (NI) system and a HIGS is asymptotically stable. We apply the HIGS to a MEMS nanopositioner, as an example of a linear NI system, in a single-input single-output framework. We analyze the stability and the performance of the closed-loop interconnection in both time and frequency domains through simulations and demonstrate the applicability of HIGS as an NNI controller to a linear NI system.
description: This paper was presented at the 61st IEEE Conference on Decision and Control (CDC), 2022. A short version was published in the proceedings of the conference
RELICS: Strong Lens Model of SMACSJ0723.3-7327
Creators: name: Sharon, Keren
name: Chen, Mandy C.
name: Mahler, Guillaume
name: Coe, Dan
name: Collaboration, the RELICS
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present the details of a strong lens model of SMACS J0723.3-7327, which was made public as part of the data and high level science products (HLSP) release of the RELICS HST treasury program (Reionization Lensing Cluster Survey; GO-14096, PI: Coe). The model products were made available on the Mikulski Archive for Space Telescopes (MAST) via 10.17909/T9SP45 in 2017. Here, we provide the list of constraints that were used in the HST-based RELICS lens model, as well as other information related to our modeling choices, which were not published with the data and HLSP release. This model was computed with Lenstool, used multiple images of 8 sources, with no spectroscopic redshifts. The image plane RMS was 0".58.
description: 4 pages, 1 figure, 1 table. Submitted to ApJS
Accelerating Exact and Approximate Inference for (Distributed) Discrete Optimization with GPUs
Creators: name: Fioretto, Ferdinando
name: Pontelli, Enrico
name: Yeoh, William
name: Dechter, Rina
Publisher: name: arXiv
Year: 2016
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences

description: Discrete optimization is a central problem in artificial intelligence. The optimization of the aggregated cost of a network of cost functions arises in a variety of problems including (W)CSP, DCOP, as well as optimization in stochastic variants such as the tasks of finding the most probable explanation (MPE) in belief networks. Inference-based algorithms are powerful techniques for solving discrete optimization problems, which can be used independently or in combination with other techniques. However, their applicability is often limited by their compute intensive nature and their space requirements. This paper proposes the design and implementation of a novel inference-based technique, which exploits modern massively parallel architectures, such as those found in Graphical Processing Units (GPUs), to speed up the resolution of exact and approximated inference-based algorithms for discrete optimization. The paper studies the proposed algorithm in both centralized and distributed optimization contexts. The paper demonstrates that the use of GPUs provides significant advantages in terms of runtime and scalability, achieving up to two orders of magnitude in speedups and showing a considerable reduction in execution time (up to 345 times faster) with respect to a sequential version.
Assessment On The Effect Of Project Stakeholder Management In New Product Development Of Banks: A Case Study In CBE
Creators: name: Bekele, Shimeles
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2018

description: Even though other governmental and private banks are available, CBE playing the main economic part of the country. Though banks in Ethiopia have received a lot of research attention, most have focused largely on the financial performance whilst there is no available information on stakeholder management practices in new product development in banks. Since project management is considered to be an effective means of stakeholder management, the purpose of this work was to assess the effect of stakeholder management in new product development in CBE. A case study was adopted in CBE and a questionnaires for product development management office and office of strategic management managers and workers had distributed. 47 respondents were selected by random sampling among 73. Finally, only 41 were completed from distributed 47 questionnaires. Based on the developed framework and model, the collected data reformed as suitable for IBM SPSS soft ware. As per the results of the empirical evidences the input factors of stakeholder management in product development projects of CBE and the success factors of the project based on the identified stakeholder management knowledge areas are discussed according to developed frameworks and models on the literature part. A descriptive statistics was used to describe the general result of the variables. In addition, correlation analysis was done to check the correlation between the dependent and the independent variables, and regression analysis was used to test the hypotheses developed following the conceptual framework. The findings indicate that the stakeholder management input factors that affect the performance of project stakeholder management process are: - Information Inputs Groups, Management Factor Groups and Stakeholder Estimation. Moreover, problem areas in project stakeholder management process are assessment of Stakeholder management and effective quality measurement of the outputs were inadequately performed in the project. So, it is recommended that the product development project in the bank should practice assessment work on stakeholder management process and improve the quality of the output in the project.
Hopf algebroids with balancing subalgebra
Creators: name: Škoda, Zoran
name: Stojić, Martina
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Algebra (math.QA)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 16T10, 16T99

description: Recently, S. Meljanac proposed a construction of a class of examples of an algebraic structure with properties very close to the Hopf algebroids $H$ over a noncommutative base $A$ of other authors. His examples come along with a subalgebra $\mathcal{B}$ of $H\otimes H$, here called the balancing subalgebra, which contains the image of the coproduct and such that the intersection of $\mathcal{B}$ with the kernel of the projection $H\otimes H\to H\otimes_A H$ is a two-sided ideal in $\mathcal{B}$ which is moreover well behaved with respect to the antipode. We propose a set of abstract axioms covering this construction and make a detailed comparison to the Hopf algebroids of Lu. We prove that every scalar extension Hopf algebroid can be cast into this new set of axioms. We present an observation by G. Böhm that the Hopf algebroids constructed from weak Hopf algebras fit into our framework as well. At the end we discuss the change of balancing subalgebra under Drinfeld-Xu procedure of twisting of associative bialgebroids by invertible 2-cocycles.
description: v3 accepted version; v2 old title A two sided ideal in Hopf algebroid axiomatics changed to Hopf algebroids with balancing subalgebra; thoroughly revised and extended from 18 to 29 pages, entirely new sections on weak Hopf algebras and on Drinfeld-Xu twists (the first submission to a journal planned within days, but suggestions still welcome)
Detection of Cosmic Fullerenes in the Almahata Sitta Meteorite: Are They an Interstellar Heritage?
Creators: name: Sabbah, Hassan
name: Carlos, Mickaël
name: Jenniskens, Peter
name: Shaddad, Muawia
name: Duprat, Jean
name: Goodrich, Cyrena
name: Joblin, Christine
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Buckminsterfullerene, C60 , is the largest molecule observed to date in interstellar and circumstellar environments. The mechanism of formation of this molecule is actively debated. Despite targeted searches in primitive carbonaceous chondrites, no unambiguous detection of C60 in a meteorite has been reported to date. Here we report the first firm detection of fullerenes, from C30 to at least C100 , in the Almahata Sitta (AhS) polymict ureilite meteorite. This detection was achieved using highly sensitive laser desorption laser ionization mass spectrometry. Fullerenes have been unambiguously detected in seven clasts of AhS ureilites. Molecular family analysis shows that fullerenes are from a different reservoir compared to the polycyclic aromatic hydrocarbons detected in the same samples. The fullerene family correlates best with carbon clusters, some of which may have been formed by the destruction of solid carbon phases by the impacting laser. We show that the detected fullerenes are not formed in this way. We suggest that fullerenes are an intrinsic component of a specific carbon phase that has yet to be identified. The nondetection of fullerenes in the Murchison and Allende bulk samples, while using the same experimental conditions, suggests that this phase is absent or less abundant in these primitive chondrites. The former case would support the formation of fullerenes by shock-wave processing of carbonaceous phases in the ureilite parent body. However, there are no experimental data to support this scenario. This leaves open the possibility that fullerenes are an interstellar heritage and a messenger of interstellar processes.
Alternating north-south brightness ratio of Ganymede's auroral ovals: Hubble Space Telescope observations around the Juno PJ34 flyby
Creators: name: Saur, Joachim
name: Duling, Stefan
name: Wennmacher, Alexandre
name: Willmes, Clarissa
name: Roth, Lorenz
name: Strobel, Darrell F.
name: Allegrini, Frédéric
name: Bagenal, Fran
name: Bolton, Scott J.
name: Bonfond, Bertrand
name: Clark, George
name: Gladstone, Randy
name: Greathouse, T. K.
name: Grodent, Denis C.
name: Hansen, Candice J.
name: Kurth, W. S.
name: Orton, Glenn S.
name: Retherford, Kurt D.
name: Rymer, Abigail M.
name: Sulaiman, Ali H.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: We report results of Hubble Space Telescope observations from Ganymede's orbitally trailing side which were taken around the flyby of the Juno spacecraft on June 7, 2021. We find that Ganymede's northern and southern auroral ovals alternate in brightness such that the oval facing Jupiter's magnetospheric plasma sheet is brighter than the other one. This suggests that the generator that powers Ganymede's aurora is the momentum of the Jovian plasma sheet north and south of Ganymede's magnetosphere. Magnetic coupling of Ganymede to the plasma sheet above and below the moon causes asymmetric magnetic stresses and electromagnetic energy fluxes ultimately powering the auroral acceleration process. No clear statistically significant time variability of the auroral emission on short time scales of 100s could be resolved. We show that electron energy fluxes of several tens of mW m$^{-2}$ are required for its OI 1356 Å$\;$ emission making Ganymede a very poor auroral emitter.
description: Accepted for publication with Geophys. Res. Let
title: Delegierbarkeit von hausärztlichen Hausbesuchen
Creators: name: Lenz, F.
name: Bergmann, A.
name: Klement, A.
name: Voigt, K.
name: Bojanowski, S.
Publisher: name: German Medical Science GMS Publishing House
Year: 2015
Subjects: subject: Delegation
subject: Hausärztliche Tätigkeit
subject: Hausbesuche
subject: 610 Medical sciences; Medicine

description: Hintergrund: Mit dem bekannt wachsenden Anteil älterer und multimorbider Patienten geht eine komplexere hausärztliche Betreuung einher. Durch zusätzliche Einschränkung der Mobilität werden Hausbesuche (HB) nötig. Es wäre daher mit einem Anstieg des HB-Bedarfs zu rechnen.[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 49. Kongress für Allgemeinmedizin und Familienmedizin
The three-center two-positron bond
Creators: name: Charry, Jorge
name: Moncada, Félix
name: Barborini, Matteo
name: Pedraza-González, Laura
name: Varella, Márcio T. do N.
name: Tkatchenko, Alexandre
name: Reyes, Andrés
Publisher: name: arXiv
Year: 2022
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Computational studies have shown that one or more positrons can stabilize two repelling atomic anions through the formation of two-center positronic bonds. In the present work, we study the energetic stability of a system containing two positrons and three hydride anions, namely 2\ce{e^+[H^{3-}_3]}. To this aim, we performed a preliminary scan of the potential energy surface of the system with both electrons and positron in a spin singlet state, with a multi-component MP2 method, that was further refined with variational and diffusion Monte Carlo calculations, and confirmed an equilibrium geometry with \ce{D_${3h}$} symmetry. The local stability of 2\ce{e^+[H^{3-}_3]} is demonstrated by analyzing the vertical detachment and adiabatic energy dissociation channels. Bonding properties of the positronic compound, such as the equilibrium interatomic distances, force constants, dissociation energies, and bonding densities are compared with those of the purely electronic \ce{H^+_3} and \ce{Li^+_3} systems. Through this analysis, we find compelling similarities between the 2\ce{e^+[H^{3-}_3]} compound and the trilithium cation. Our results strongly point out the formation of a non-electronic three-center two-positron bond, analogous to the well known three-center two-electron counterparts, which is fundamentally distinct from the two-center two-positron bond [D. Bressanini, \textit{J. Chem. Phys.} \textbf{155}, 054306 (2021)], thus extending the concept of positron bonded molecules.
description: Submitted to Chemical Science
Policarpa Salavarrieta entre ciscos y victorias
Creators: name: Echavez Bustamante, Cristina Isabel
Publisher: name: Universidad de Cartagena
Year: 2007
Subjects: subject: Educación - Investigaciones - Aspectos sociales

description: El propósito de la investigación se circunscribe en explicitar las características socioculturales de Policarpa Salavarrieta, con el fin de engendrar de manera posterior un estudio profundo acerca de los valores y pujanza que motiva a sus habitantes hacia la movilización cuando se sienten amenazados y se les exige la organización de tácticas creativas para solucionar sus problemas de manera colectiva. El documento contiene doce temáticas que devela al barrio en sus expresiones atravesando por la generalidad, el medio ambiente, historia local, actividad económica, política, organización social, educación, religiosidad, territorio, vida cotidiana, cultura y medios de comunicación hasta la identidad local.
Convergence of a Grassmannian Gradient Descent Algorithm for Subspace Estimation From Undersampled Data
Creators: name: Zhang, Dejiao
name: Balzano, Laura
Publisher: name: arXiv
Year: 2016
Subjects: subject: Numerical Analysis (math.NA)
subject: Machine Learning (stat.ML)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: Subspace learning and matrix factorization problems have great many applications in science and engineering, and efficient algorithms are critical as dataset sizes continue to grow. Many relevant problem formulations are non-convex, and in a variety of contexts it has been observed that solving the non-convex problem directly is not only efficient but reliably accurate. We discuss convergence theory for a particular method: first order incremental gradient descent constrained to the Grassmannian. The output of the algorithm is an orthonormal basis for a $d$-dimensional subspace spanned by an input streaming data matrix. We study two sampling cases: where each data vector of the streaming matrix is fully sampled, or where it is undersampled by a sampling matrix $A_t\in \mathbb{R}^{m\times n}$ with $m\ll n$. Our results cover two cases, where $A_t$ is Gaussian or a subset of rows of the identity matrix. We propose an adaptive stepsize scheme that depends only on the sampled data and algorithm outputs. We prove that with fully sampled data, the stepsize scheme maximizes the improvement of our convergence metric at each iteration, and this method converges from any random initialization to the true subspace, despite the non-convex formulation and orthogonality constraints. For the case of undersampled data, we establish monotonic expected improvement on the defined convergence metric for each iteration with high probability.
description: 31 pages, 3 figures
Análisis del comercio de prendas de vestir para niños de 4 a 12 años en la ciudad de Cartagena
Creators: name: Ramírez Barragan, Rocío Elena
name: Castro Flerez, Surley
Publisher: name: Universidad de Cartagena
Year: 2004
Subjects: Comportamiento del consumidor
Industrial textil - Mercadeo
Mercadeo

description: Tesis(Administrador de Empresas).-- Universidad de Cartagena. Facultad de Ciencias Económicas. Programa de Administración de Empresas, 2004
description: El presente estudio tiene por objeto determinar las características de la demanda y oferta final de prendas de vestir infantil en edades de 4 a 12 años en la ciudad de Cartagena en el año 2003 - 2004
title: Reduktion von Polypharmazie durch hausärztliche Priorisierung – Inhaltliche und methodische Aspekte einer Machbarkeitsstudie (Gefördert durch einen Zuschuss der DGSMP)
Creators: name: Marx, Y.
name: Robra, B.-P.
name: Herrmann, M.
Publisher: name: German Medical Science GMS Publishing House
Year: 2015
Subjects: subject: hausärztliche Versorgung
subject: Multimorbidität
subject: Polypharmazie
subject: 610 Medical sciences; Medicine

description: Hintergrund: Eine qualitative Studie[ref:1] beschrieb hausärztliche Priorisierungskriterien zur Reduktion von Polypharmazie bei stationär entlassenen, multimorbiden, älteren Patienten. Ob die erhobenen hausärztlichen Entscheidungenkriterien kontextabhängig oder stringent[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 49. Kongress für Allgemeinmedizin und Familienmedizin
Full Self-Consistent Vlasov-Maxwell Solution
Creators: name: Cordonnier, Aurélien
name: Leoncini, Xavier
name: Dif-Pradalier, Guilhem
name: Garbet, Xavier
Publisher: name: arXiv
Year: 2022
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Full self-consistent stationary Vlasov-Maxwell solutions of magnetically confined plasmas are built for systems with cylindrical symmetries. The stationary solutions are thermodynamic equilibrium solutions. These are obtained by computing the equilibrium distribution function resulting from maximizing the entropy and closing the equations with source terms that are then computed by using the obtained distribution. This leads to a self-consistent problem corresponding to solving a set of two coupled second order non-linear differential equations. Relevant plasma parameters are introduced and a bifurcation leading to an improvement of plasma confinement is shown. Conversely in the improved confinement setting, we exhibit the emergence of a separatrix in the integrable motion of a charged particles.