cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The Role of Social Media in Democratic Recession of the United States of America
Creators: name: Bilawokit, Jacob Kanyib
Publisher: name: My University
Year: 2023

description: The emergence of social media has been a mixed blessing. While it has resulted in easy and cost-effective means of communication, it has nonetheless led to a decline in certain elements of the US democracy. The cheaper means and the ease of communications that have come with the digital era have resulted in constant flows of information with no effective medium in place to check the leakage of misleading and harmful contents. This trend has resulted in dynamics like the spread of misinformation, disinformation, malinformation, populism, polarization, etc. Such a trend does not appear to augur well for the country’s democracy health. Combatting the negative implications of social media on the United States democracy is a multifaceted endeavor that requires contributions of different actors, such as government, academic institutions, international organizations, civic and civil societies, as well as the individuals. In this work, I argue that measures such as legislative reforms, international cooperation, adoption of best practices, promotion of socioeconomic equality, value-based and inspiring communications, efficient and independent journalism, digital education, just to mention but a few, can help to reverse the tide of democratic recession in the country. These factors are interconnected in a synergistic way. The legislative reforms set the legal framework; international cooperation ensures a coordinated response; adoption of best practices aligns with responsible behavior and actions; and socioeconomic equality addresses underlying issues that reorient some people to unethical social media actions. While inspiring communications instill hopes in people and contribute to a positive online environment, ethical and independent journalism provides accurate information. Lastly, digital education empowers individuals to navigate the digital landscape responsibly and safely. A comprehensive strategy that incorporates these interconnected elements is more likely to effectively combat the negative impact of social media on democracy. While all these factors are instrumental in combatting social media iii negative dynamics in the US democracy, digital education and the promotion of socioeconomic equality stand out. First, once Americans are well informed about the social media use and its negative implications, they would not easily become prey of disinformation and misinformation. Second, with social and economic equality Americans would feel part and parcel of the system, thereby not yielding to whims and caprices of polarizing political figures. Keywords:Democracy, democratic recession, democratic erosion, democratic backsliding, social media, populism, digital era, fake news, misinformation, disinformation, malinformation, polarization.
Improvements in Gravitational-Wave Sky Localization with Expanded Networks of Interferometers
Creators: name: Pankow, Chris
name: Chase, Eve A.
name: Coughlin, Scott
name: Zevin, Michael
name: Kalogera, Vassiliki
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: A milestone of multi-messenger astronomy has been achieved with the detection of gravitational waves from a binary neutron star merger accompanied by observations of several associated electromagnetic counterparts. Joint observations can reveal details of the engines that drive the electromagnetic and gravitational-wave emission. However, locating and identify an electromagnetic counterparts to a gravitational-wave event is heavily reliant on localization of the source through gravitational-wave information. We explore the sky localization of a simulated set of neutron star mergers as the worldwide network of gravitational-wave detectors evolves through the next decade, performing the first such study for neutron star -- black hole binary sources. Currently, three detectors are observing with additional detectors in Japan and India expected to become operational in the coming years. With three detectors, we recover a median neutron star -- black hole binary sky localization of 60 deg$^2$ at the 90\% credible level. As all five detectors become operational, sources can be localized to a median of 11 deg$^2$ on the sky.
description: 8 pages, 5 figures, accepted in ApJL
An adaptive threshold-based policy for sharing servers with affinities
Creators: name: Osogami, Takayuki
Publisher: name: Carnegie Mellon University
Year: 1996
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: Abstract: "We evaluate the performance of threshold-based job allocation policies in a heterogeneous distributed computing system, where servers may have different speeds, and jobs may have different service demands, importance, and/or affinities for different servers. We find that while threshold-based policies typically yield low mean response time, these policies are not robust with respect to fluctuations or misprediction of the load. We propose a new adaptive dual-threshold policy and show that this policy yields low mean response time while also being robust."
Interpretación de los contratos atípicos : criterios para definir su disciplina y preservar la función del negocio
Creators: name: Hernandez Mendoza, William Esneyder
Publisher: name: Universidad Externado de Colombia
Year: 2022
Subjects: subject: Derecho
subject: Derecho civil
subject: Derecho y sociedad
subject: Contratos
subject: Atípicos
subject: Tipicidad
subject: Atipicidad
subject: Interpretación contractual

description: Este trabajo busca exponer los criterios interpretativos que se han identificado a nivel doctrinario y jurisprudencial para determinar la disciplina jurídica de los contratos atípicos, haciendo hincapié en aquellos que mejor toman en consideración la función del negocio querido por las partes; de manera que sea posible formular críticas y proponer nuevas herramientas de análisis que permitan concluir afirmando cuáles criterios interpretativos son los más apropiados para definir la disciplina jurídica aplicable a los contratos atípicos al propio tiempo que se salvaguarda la autonomía privada.
description: This paper seeks to expose the interpretative criteria that have been identified at the doctrinal and jurisprudential level to determine the legal discipline of atypical contracts, emphasizing those that best take into account the function of the business desired by the parties; so that it is possible to formulate critics and propose new analytical tools that allow us to conclude by affirming which interpretive criteria are the most appropriate to define the legal discipline applicable to the atypical contracts while safeguarding private autonomy.
K fields, compactons, and thick branes
Creators: name: Adam, C.
name: Grandi, N.
name: Sanchez-Guillen, J.
name: Wereszczynski, A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: K fields, that is, fields with a non-standard kinetic term, allow for soliton solutions with compact support, i.e., compactons. Compactons in 1+1 dimensions may give rise to topological defects of the domain wall type and with finite thickness in higher dimensions. Here we demonstrate that, for an appropriately chosen kinetic term, propagation of linear perturbations is completely suppressed outside the topological defect, confining the propagation of particles inside the domain wall. On the other hand, inside the topological defect the propagation of linear perturbations is of the standard type, in spite of the non-standard kinetic term. Consequently, this compacton domain wall may act like a brane of finite thickness which is embedded in a higher dimensional space, but to which matter fields are constrained. In addition, we find strong indications that, when gravity is taken into account, location of gravity in the sense of Randall--Sundrum works for these compacton domain walls. When seen from the bulk, these finite thickness branes, in fact, cannot be distinguished from infinitely thin branes.
description: some references and further remarks added
Big Bellies, Bigger Babies: The effect of Cesarean section births on childhood obesity compared to vaginal delivery
Creators: name: Kaur, Dayajyot
name: Charlebois, Sabreena
name: Baxter, Jessica
name: Pellegrini, Sydney
Publisher: name: My University
Year: 2017

description: Background: Cesarean section (CS) rates in developed countries have been on the rise for the last two decades: in the United States, there was an 11.3% increase in CS deliveries between 1996 and 2007. This is a concern due to the possible short- and long-term health effects. Objective: The purpose of this structured literature review was to assess the association between CS births and childhood obesity when compared to vaginal delivery. Methods: A structured literature review of seven North American articles was conducted after selection via specific inclusion criteria. Results: Some studies found an association between cesarean section and childhood obesity whilst others showed the association was not statistically significant due to the influence of confounders. Conclusion: The results indicate that a majority of the studies found a positive association between CS birth and obesity. Further studies need to be conducted to further determine this relationship and to identify the underlying reasons behind this possible relationship.
Additional file 2 of A multicenter randomized trial to assess the efficacy of CONvalescent plasma therapy in patients with Invasive COVID-19 and acute respiratory failure treated with mechanical ventilation: the CONFIDENT trial protocol
Creators: name: Misset, Benoît
name: Hoste, Eric
name: Donneau, Anne-Françoise
name: Grimaldi, David
name: Meyfroidt, Geert
name: Moutschen, Michel
name: Compernolle, Veerle
name: Gothot, André
name: Desmecht, Daniel
name: Garigliany, Mutien
name: Najdovski, Tome
name: Laterre, Pierre-François
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 2. SPIRIT check-list.
Periodic orbits, localization in normal mode space, and the Fermi-Pasta-Ulam problem
Creators: name: Flach, S.
name: Ivanchenko, M. V.
name: Kanakov, O. I.
name: Mishagin, K. G.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: The Fermi-Pasta-Ulam problem was one of the first computational experiments. It has stirred the physics community since, and resisted a simple solution for half a century. The combination of straightforward simulations, efficient computational schemes for finding periodic orbits, and analytical estimates allows us to achieve significant progress. Recent results on $q$-breathers, which are time-periodic solutions that are localized in the space of normal modes of a lattice and maximize the energy at a certain mode number, are discussed, together with their relation to the Fermi-Pasta-Ulam problem. The localization properties of a $q$-breather are characterized by intensive parameters, that is, energy densities and wave numbers. By using scaling arguments, $q$-breather solutions are constructed in systems of arbitrarily large size. Frequency resonances in certain regions of wave number space lead to the complete delocalization of $q$-breathers. The relation of these features to the Fermi-Pasta-Ulam problem are discussed.
description: 19 pages, 9 figures, to appear in Am. J. Phys
An Activity Language for the ADL Toolkit
Creators: name: Garlan, David
name: Kompanek, Andrew J
name: Kenney, John
name: Luckham, David
name: Schmerl, Bradley
name: Wile, Dave
Publisher: name: Carnegie Mellon University
Year: 2002
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: Over the past decade numerous architecture description languages (ADLs) and tools have been developed [2]. Each has certain strengths, and each tends to work in isolation. A desirable goal is to find ways to combine the capabilities so that new architecture development environments can be easily developed by combining existing building blocks for architectural description, analysis, code generation, simulation, testing, etc. Such a collection of capabilities would then serve as an ADL Toolkit for building architecture-based design environments.
Molecular outflow and feedback in the obscured Quasar XID2028 revealed by ALMA
Creators: name: Brusa, M.
name: Cresci, G.
name: Daddi, E.
name: Paladino, R.
name: Perna, M.
name: Bongiorno, A.
name: Lusso, E.
name: Sargent, M. T.
name: Casasola, V.
name: Feruglio, C.
name: Fraternali, F.
name: Georgiev, I.
name: Mainieri, V.
name: Carniani, S.
name: Comastri, A.
name: Duras, F.
name: Fiore, F.
name: Mannucci, F.
name: Marconi, A.
name: Piconcelli, E.
name: Zamorani, G.
name: Gilli, R.
name: La Franca, F.
name: Lanzuisi, G.
name: Lutz, D.
name: Santini, P.
name: Scoville, N. Z.
name: Vignali, C.
name: Vito, F.
name: Rabien, S.
name: Busoni, L.
name: Bonaglia, M.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We imaged with ALMA and ARGOS/LUCI the molecular gas and the dust and stellar continuum in XID2028, an obscured QSO at z=1.593, where the presence of a massive outflow in the ionized gas component traced by the [O III]5007 emission has been resolved up to 10 kpc. This target represents a unique test case to study QSO 'feedback in action' at the peak epoch of AGN-galaxy coevolution. The QSO has been detected in the CO(5-4) transition and in the 1.3mm continuum, at ~30 and ~20 σ significance respectively, with both emissions confined in the central (<4 kpc) radius area. Our analysis suggests the presence of a fast rotating molecular disc (v~400 km/s) on very compact scales, and well inside the galaxy extent seen in the rest-frame optical light (~10 kpc, as inferred from the LUCI data). Adding available measurements in additional two CO transitions, CO(2-1) and CO(3-2), we could derive a total gas mass of ~10$^{10}$ M$_\odot$, thanks to a critical assessment of CO excitation and the comparison with Rayleigh-Jeans continuum estimate. This translates into a very low gas fraction (<5%) and depletion time scales of 40-75 Myr, reinforcing the result of atypical gas consumption conditions in XID2028, possibly due to feedback effects on the host galaxy. Finally, we also detect at ~5σ the presence of high velocity CO gas, which we interpret as a signature of galaxy-scale molecular outflow, spatially coincident with the ionised gas outflow. XID2028 represents therefore a unique case where the measurement of total outflowing mass (~500-800 M$_\odot$/yr) including the molecular and atomic components, in both the ionised and neutral phases, has been attempted for a high-z QSO.
description: 15 pages, 11 figures (including Appendix). Version matches A&A published version (after proof)
On groups with large verbal quotients
Creators: name: Lisi, Francesca
name: Sabatini, Luca
Publisher: name: arXiv
Year: 2022
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: Primary 20F99

description: Let $w=w(x_1,...,x_n)$ be a word, i.e. an element of the free group $F = \langle x_1,...,x_n \rangle$. The verbal subgroup $w(G)$ of a group $G$ is the subgroup generated by the set $\{ w(x_1,...,x_n) : x_1,...,x_n \in G \}$ of all $w$-values in $G$. Following J. González-Sánchez and B. Klopsch, a group $G$ is $w$-maximal if $|H:w(H)| < |G:w(G)|$ for every $H
description: 12 pages, to appear in J. Group Theory
Rate equation analysis and non-Hermiticity in coupled semiconductor laser arrays
Creators: name: Gao, Zihe
name: Johnson, Matthew T.
name: Choquette, Kent D.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Optically-coupled semiconductor laser arrays are described by coupled rate equations. The coupled mode equations and carrier densities are included in the analysis, which inherently incorporate the carrier-induced nonlinearities including spatial hole burning and amplitude-phase coupling. We solve the steady-state coupled rate equations and consider the cavity frequency detuning and the individual laser pump rates as the experimentally controlled variables. We show that the carrier-induced nonlinearities play a critical role in the mode control, and we identify gain contrast induced by cavity frequency detuning as a unique mechanism for mode control. Photon-mediated energy transfer between cavities is also discussed. Parity-time symmetry and exceptional points in this system are studied. Unbroken parity-time symmetry can be achieved by judiciously combining cavity detuning and unequal pump rates, while broken symmetry lies on the boundary of the optical locking region. Exceptional points are identified at the intersection between broken and unbroken parity-time symmetry.
Reducing the number of templates for aligned-spin compact binary coalescence gravitational wave searches using metric-agnostic template nudging
Creators: name: Indik, Nathaniel
name: Fehrmann, Henning
name: Harke, Franz
name: Krishnan, Badri
name: Nielsen, Alex B.
Publisher: name: arXiv
Year: 2017
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Efficient multi-dimensional template placement is crucial in computationally intensive matched-filtering searches for Gravitational Waves (GWs). Here, we implement the Neighboring Cell Algorithm (NCA) to improve the detection volume of an existing Compact Binary Coalescence (CBC) template bank. This algorithm has already been successfully applied for a binary millisecond pulsar search in data from the Fermi satellite. It repositions templates from over-dense regions to under-dense regions and reduces the number of templates that would have been required by a stochastic method to achieve the same detection volume. Our method is readily generalizable to other CBC parameter spaces. Here we apply this method to the aligned--single-spin neutron-star--black-hole binary coalescence inspiral-merger-ringdown gravitational wave parameter space. We show that the template nudging algorithm can attain the equivalent effectualness of the stochastic method with 12% fewer templates.
Additional file 1 of A multicenter randomized trial to assess the efficacy of CONvalescent plasma therapy in patients with Invasive COVID-19 and acute respiratory failure treated with mechanical ventilation: the CONFIDENT trial protocol
Creators: name: Misset, Benoît
name: Hoste, Eric
name: Donneau, Anne-Françoise
name: Grimaldi, David
name: Meyfroidt, Geert
name: Moutschen, Michel
name: Compernolle, Veerle
name: Gothot, André
name: Desmecht, Daniel
name: Garigliany, Mutien
name: Najdovski, Tome
name: Laterre, Pierre-François
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 1. Detailed protocol.
Comparison Studies of Bio-Diesel Production from Seed Oils Through a Sustainable Catalyst
Creators: name: Patnaik, K.S.K. Rao
name: Alemea, Melakuu Tesfaye
name: Rani, M. Usha
name: Rao, Y. Rajeshwer
Publisher: name: Ethiopian Journal of Sciences and Sustainable Development
Year: 2019

description: Increase in demand for energy production and its supply, rise in petroleum prices, environmental issues have lead in search of new alternative energy resources. This eventually lead in using edible oils as essential feed stock but in recent years, the food verses fuel controversy made edible oil a non-ideal feed stock. In search for alternative non-edible feed stocks, GuizotiaAbyssinica and CucumisSativus seed oils were found to be potential feed stocks for the synthesis of Bio-Diesel through transesterification process using Crystalline Manganese Carbonate as catalyst. Crystalline Manganese Carbonate was found to be a sustainable catalyst since higher yields were obtained at 1 wt% catalyst for both the oils. The catalyst is pure, crystalline and ash colored in nature. It is a heterogeneous catalyst and promotes reuse of the catalyst for all most seven successive runs. It is a low cost and easily available, non-corrosive, versatile, environmental friendly, green and sustainable catalyst for the transesterification of non-edible feed stocks. In the present study, a comparison on effects of parameters like methanol quantity, catalyst amount, reaction time and reaction temperature for GuizotiaAbyssinica and CucumisSativus seed and Edible oils are done. The results show that using the catalyst CrystallineManganese Carbonate gives higher yields and conversions. The catalyst is neither corrosive nor emulsion forming and is easier to separate. The research focuses on sustainable catalyst and feed stocks that are economic and environmental friendly
description: Ethiopian Journal of Sciences and Sustainable Development, Vol 5 No 1 (2018): EJSSD
AQUA VITAE, AQUA MORTIS: Le système atemporel de l’eau dans l’œuvre Watermark de Joseph Brodsky
Creators: name: Dauvois, Violène
Publisher: name: My University
Year: 2016
Subjects: Atemporalité
eau
Souvenirs
Mélancolie

description: Joseph Brodsky, poète russe de renom, n’a pu retourner sur les terres de son enfance. Loin de Pétersbourg, l’homme ne cesse d’y retrouver ses paysages, ses ressentis, son fleuve, son eau. Dans son œuvre Watermark, Brodsky propose un nouveau système temporel atemporel, celui où les souvenirs sont aussi présents dans le passé, le présent et le futur, c’est-à-dire dans l’instant. Comme les ondes d’une goutte de pluie qui tombe dans la lagune vénète, les souvenirs se propagent vers le Neva et forment un va-et-vient perpétuel que la mort ne saurait arrêter. Aqua vitae, aqua mortis.
Emergent parallel transport and curvature in Hermitian and non-Hermitian quantum mechanics
Creators: name: Ju, Chia-Yi
name: Miranowicz, Adam
name: Chen, Yueh-Nan
name: Chen, Guang-Yin
name: Nori, Franco
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Studies have shown that the Hilbert spaces of non-Hermitian systems require nontrivial metrics. Here, we demonstrate how evolution dimensions, in addition to time, can emerge naturally from a geometric formalism. Specifically, in this formalism, Hamiltonians can be interpreted as a Christoffel symbol-like operators, and the Schroedinger equation as a parallel transport in this formalism. We then derive the evolution equations for the states and metrics along the emergent dimensions and find that the curvature of the Hilbert space bundle for any given closed system is locally flat. Finally, we show that the fidelity susceptibilities and the Berry curvatures of states are related to these emergent parallel transports.
description: 20 pages, 1 figure
An Abstract Machine to Implement Functions in LIFE
Creators: name: Goldstein, Seth C.
Publisher: name: Carnegie Mellon University
Year: 1997
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: This note outlines the Life Abstract Machine (LAM), an abstract machine used as an intermediate target for the efficient compilation of LIFE. LAM focuses primarily on the efficient implementation of matching, residuation, and currying of functions. Although the topic is not discussed in this note, LAM also implements lazy unification. LAM should be viewed as an intermediate target for compiling LIFE to a native instruction set for a general purpose processor. Thus, this note presents LAM as an abstract machine along with its instructions. However, we also discuss how LAM would be realized in terms of data structures and basic routines. This should facilitate the implementation of both a LIFE-to-LAM compiler and a LAM-to-native-code compiler.
Students’ Learning Style Preferences vis-à-vis their Academic Achievements in EFL classes
Creators: name: Mosisa, Abiot
name: Gutema, Kassaye
Publisher: name: Ethiopian Journal of Sciences and Sustainable Development
Year: 2019

description: This study aimed to identify the students’ perceptual learning style preferences and their academic achievements in EFL. The study is a descriptive survey approach in which mixed method design was employed. The pertinent data were obtained from 245 students. All English teachers were also taken as the sample. In collecting data, a 4- point Likert scale questionnaire called Perceptual Learning Style Preference Questionnaire (PLSPQ) was used along with interview and document analysis. The information gathered through close-ended question of the PLSPQ and document analyses were analyzed quantitatively with the help of SPSS for windows version 16. On the other hand, the data gathered through interview were analyzed qualitatively. Descriptive statistics such as mean and standard deviation were used to describe the respondents’ preferences of perceptual learning styles. Meanwhile, ANOVA was used to see the significance of differences among the population means of the six PLSPs. Moreover, paired-samples T-test of comparisons was the other statistics technique used to identify the mean of specific PLSP, among the six, that was statistically significantly different from the others. It was found out that they were statistically significantly different from the others. Furthermore, chi- square test was employed to observe the relationships between students’ PLSPs and their English language academic achievements. The findings of the study revealed that group, kinesthetic, tactile, visual, auditory and individual were students’ first, second, third, fourth , fifth and sixth preferred perceptual learning styles respectively. Based on the findings, the means of the six PLSPs were statistically significantly different from each other. What is more, the study revealed that there weren’t statistically significant relationships between students’ PLSPs and their English language academic achievements.
description: Ethiopian Journal of Sciences and Sustainable Development, Vol 5 No 1 (2018): EJSSD
Physicochemical characteristics analysis in Niger seed edible oil (Adama) and Linseed edible oil (Bishoftu)
Creators: name: Negera, Defaru
Publisher: name: Ethiopian Journal of Sciences and Sustainable Development
Year: 2019

description: This study was directed towards the characterization of Niger and Linseed oil purchased from Adama and Bishoft respectively using official methods. The AOAC method of analysis was employed in the determination of the chemical and physical properties of the oils. The chemical properties of the oils determined included the saponification value, acid value, peroxide value, Soap content, Copper (Cu) (mg/kg) and Iron (Fe)(mg/kg), and Insoluble impurities (%(m/m)). The physical properties of the oils determined were moisture content and volatile matter at 1050C (% (m/m)), refractive index at 400C and Relative density at room temperature. The values obtained were Saponification values (192 & 189.17mgKOH/g), peroxide values (3.59 & 3.19 milliequivalent peroxide Oxygen/Kg oil), acid values (0.45 & 0.59 mgKOH/g), Soap contents (0.001 & 0.005 (%( m/m)), Copper (Cu) (not detected mg/kg), Iron (Fe)(not detected mg/kg), Insoluble impurities (0.01 & 0.02 %(m/m)), refractive indexes (1.4757 & 1.482 ), and Relative density at room temperature (0.9220 and 0.929) for Niger and Linseed oil respectively. One proximate composition obtained was moisture content (0.09 & 0.15%). From the results obtained it can be concluded that Niger and Lin seed oils have huge potentials for use as domestic oils.
description: Ethiopian Journal of Sciences and Sustainable Development, Vol 5 No 1 (2018): EJSSD
Contextualized reading workshops to develop students’ values
Creators: name: Ramírez Alzate, Jazmín
Publisher: name: Universidad Externado de Colombia
Year: 2020
Subjects: subject: Pedagogía
subject: Educación - enseñanza
subject: Docencia
subject: Materials development
subject: Contextualized workshops
subject: Reading-text genres
subject: Values

description: Este estudio de investigación de acción cualitativa analizó lo que se reveló al diseñar e implementar talleres de lectura contextualizados enfocados en varios géneros de texto como historias cortas, dilemas morales, guiones gráficos, entrevistas e imágenes sobre el desarrollo de valores en estudiantes del IED José Acevedo y Gómez. Los participantes del presente estudio fueron dieciocho estudiantes de noveno grado y la docente quien desempeñó tres roles: maestra de inglés, investigadora y creadora de materiales contextualizados. La información se recopiló a través de los trabajos de los estudiantes (dos talleres de lectura contextualizados), notas de campo de la docente y una entrevista de grupo focal. Los hallazgos dieron a conocer que los talleres de lectura contextualizados, hicieron reales la particularidad, practicidad y posibilidad, ya que motivaron a los estudiantes a aprender, porque los temas y el contenido estaban relacionados con el contexto, los intereses y las necesidades específicas de los estudiantes. Además, los talleres de lectura contextualizados alentaron a los estudiantes a reflexionar sobre sus acciones y valores, para transformar las debilidades, tener mejores relaciones con los demás y haciendo posible el aprendizaje de valores. Las lecturas contextualizadas permitieron a los estudiantes conectarse con sus experiencias personales, ya que los temas fueron significativos para ellos.
description: This qualitative action research study analyzed what was unveiled from designing and implementing contextualized reading workshops focused on several text genres such as short stories, moral dilemmas, storyboards, interviews, and images regarding the development of values in students at José Acevedo y Gómez public school. The participants of the study were eighteen ninth graders’ and the teacher who performed three roles: as an English teacher, researcher and materials developer. The information was gathered through students’ artifacts (two contextualized reading workshops), teacher’s field notes, and a focus group interview. The findings unveiled that the contextualized reading workshops reified particularity, practicality and possibility as they motivated students to learn, since the topics and content were related to students’ context, interests and specific needs. Besides, the contextualized reading workshops encouraged students to ponder their actions and values, to transform weaknesses and have better relationships with others and making values’ learning possible. The contextualized readings allowed students to connect with their personal experiences since the topics were significant to them.
Atomic-state diagnostics and optimization in cold-atom experiments
Creators: name: Sycz, Krystian
name: Wojciechowski, Adam M.
name: Gawlik, Wojciech
Publisher: name: arXiv
Year: 2018
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We report on the creation, observation and optimization of superposition states of cold atoms. In our experiments, rubidium atoms are prepared in a magneto-optical trap and later, after switching off the trapping fields, Faraday rotation of a weak probe beam is used to characterize atomic states prepared by application of appropriate light pulses and external magnetic fields. We discuss the signatures of polarization and alignment of atomic spin states and identify main factors responsible for deterioration of the atomic number and their coherence and present means for their optimization, like relaxation in the dark with the strobe probing. These results may be used for controlled preparation of cold atom samples and in situ magnetometry of static and transient fields
description: 15 pages and 9 figures (including supplementary information)
Non-invasive lipid quantification of living microalgal cultures with digital holographic microscopy
Creators: name: Yourassowsky, Catherine
name: Theunissen, Renaud
name: Dohet-Eraly, JÉrÔme
name: Dubois, Frank
Publisher: name: arXiv
Year: 2022
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences
subject: 78A70

description: Some microalgae store large amounts of neutral lipids inside lipid droplets. Since these lipids can be used to produce biodiesel in a sustainable way, research is developing on fast non-destructive methods to quantify and monitor the amount of lipids in microalgal cultures. In this paper, we have developed with digital holographic microscopy a fast quantitative method to assess the evolution of the lipid content inside the diatom Phaeodactylum tricornutum living cells. The method uses a specific processing of recorded hologram sequences based on the refocusing capability of digital holographic microscopy. Each lipid droplet volume is evaluated inside the cells on representative samples of the culture. We have validated the method thanks to correlative quantitative phase contrast-fluorescence imaging and extrapolated it to larger calibrated spherical refractive particles, to demonstrate the flexibility of the method.
description: 13 pages, 5 figures
The reflection coefficient for minimal model conformal defects from perturbation theory
Creators: name: Makabe, Isao
name: Watts, Gerard M T
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider a class of conformal defects in Virasoro minimal models that have been defined as fixed points of the renormalisation group and calculate the leading contribution to the reflection coefficient for these defects. This requires several structure constants of the operator algebra of the defect fields, for which we present a derivation in detail. We compare our results with our recent work on conformal defects in the tricritical Ising model.
description: 22 pages; v2: minor changes, defect field transformation law clarified, reference added
Additional file 1 of A multicenter randomized trial to assess the efficacy of CONvalescent plasma therapy in patients with Invasive COVID-19 and acute respiratory failure treated with mechanical ventilation: the CONFIDENT trial protocol
Creators: name: Misset, Benoît
name: Hoste, Eric
name: Donneau, Anne-Françoise
name: Grimaldi, David
name: Meyfroidt, Geert
name: Moutschen, Michel
name: Compernolle, Veerle
name: Gothot, André
name: Desmecht, Daniel
name: Garigliany, Mutien
name: Najdovski, Tome
name: Laterre, Pierre-François
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 1. Detailed protocol.
Additional file 1 of Biofilm associated genotypes of multiple antibiotic resistant Pseudomonas aeruginosa
Creators: name: Redfern, James
name: Wallace, Janine
name: van Belkum, Alex
name: Jaillard, Magali
name: Whittard, Elliot
name: Ragupathy, Roobinidevi
name: Verran, Joanna
name: Kelly, Peter
name: Enright, Mark Charles
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1: Suppl. Figure S1. Optical density readings at 540nm of Pseudomonas aeruginosa biofilm after staining with 0.1 % crystal violet and solubilised in 30 % acetic acid. Biofilms were grown on a modified MBEC assay plate, of which the pegs had been coated in stainless-steel. Data represent twenty-five ST111 (A) and twenty-three ST235 (B) strains. An optical density cut off of 0.5540 was used to differentiate the statistically significant groups of high density (green) and low density (red) biofilm producers. Significance (P
Structural Algebraic Quantum Field Theory
Creators: name: Alhaidari, A. D.
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: Conventional quantum field theory is a method for studying structureless elementary particles. Non-elementary particles, on the other hand, are those with internal structure or particles that are made up of elementary constituents like the hadrons, which contain quarks and gluons. We introduce a structure-inclusive algebraic formulation of quantum field theory that could handle such particles and in which orthogonal polynomials play a central role. For simplicity, we consider non-elementary scalar particles in 3+1 Minkowski space-time and, in three appendices, we treat spinors with structure, massless vector fields, and the massive vector bosons. We show how to do scattering calculation in a nonlinear scalar-spinor coupling model where we find that loop integrals in the Feynman diagrams are remarkably finite. The aim of this short exposé is to motivate further studies and research using this approach.
description: In this revised version, the four postulates of free quantum fields in SAQFT has been augmented by an essential fifth one concerning interaction (see the first bulleted comment in section 5)
INDIGENOUS KNOWLEDGE OF THE SHEKACHO SOCIETY IN ENSET (ENSETE VENTRICOSUM (WELW.) CHEESMAN) PLANTATION AND MANAGEMENT FROM FIELD TO PLATE
Creators: name: Robi, Alemu Gonfa
name: Gemechu, Negussie Megersa
name: Gebremedhin, Tetemke Mehari
Publisher: name: Ethiopian Journal of Sciences and Sustainable Development
Year: 2019

description: In this study, the indigenous knowledge of the Shekacho society in Enset cultivation and Kocho food production was investigated. Although Enset has several advantages, only limited population of Ethiopians consume the food product mainly due to some uncommon sensory quality parameters and lack of awarness. The Shekacho society introduces the plant “Mandillo” that greatly improves the quality and palatability of Kocho products. To this end, analytical data were collected using semi-closed questionnaire, field observations, interviews and discussion with key informants. Local annotations review and Enset plant physical structure were also measured. Fermentation was carried out by knowledgeable local women. Descriptive analysis of the Enset histories, culture, varieties and uses, showed diversified applications of Enset and the detail knowledge of Shekacho society inherited in Enset cultivation and consumption managements. One hundred fifteen Enset local cultivars were identified and grouped into male and female types. The measurement of the parts of Enset plant in the study area showed maximum size in total height, the pseudo stem circumference and its height, leaf height and volume of underground corm (13.1 m, 2.5 m, and 4 m, 9.1 m and 1 m3, respectively).The effect of adding Mandillo during Enset fermentation resulted in visible physical quality differences of Kocho products. The descriptive analysis of the data and the corresponding results suggested the existence of a high degree of consistency among the respondents.
description: Ethiopian Journal of Sciences and Sustainable Development, Vol 6 No 1 (2019): EJSSD
The CENNS-10 Liquid Argon Detector to measure CEvNS at the Spallation Neutron Source
Creators: name: Tayloe, R.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The COHERENT collaboration is deploying a suite of low-energy detectors in a low-background corridor of the ORNL Spallation Neutron Source (SNS) to measure coherent elastic neutrino-nucleus scattering (CEvNS) on an array of nuclear targets employing different detector technologies. A measurement of CEvNS on different nuclei will test the $N^2$-dependence of the CEvNS cross section and further the physics reach of the COHERENT effort. The first step of this program has been realized recently with the observation of CEvNS in a 14.6 kg CsI detector. Operation and deployment of Ge and NaI detectors are also underway. A 22 kg, single-phase, liquid argon detector (CENNS-10) started data-taking in Dec. 2016 and will provide results on CEvNS from a lighter nucleus. Initial results indicate that light output, pulse-shape discrimination, and background suppression are sufficient for a measurement of CEvNS on argon.
description: 6 pages, 8 figures. Submission to Proceedings of "LIDINE 2017: LIght Detection In Noble Elements", 22-24 September 2017, SLAC National Accelerator Laboratory. V2 in response to editors comments
Microbial Qualities of Drinking Water and Its Public Health Implication in the Case of Adama City, Ethiopia
Creators: name: Temam, Mr.  Keredin
name: Rao, P.V.V. Prasada
name: Prasad, CH.Durga
Publisher: name: Ethiopian Journal of Sciences and Sustainable Development
Year: 2019

description: This study is an investigation on microbial quality drinking water and public health in Adama city during June to December2016. Accordingly, seven strata were formed from the total distribution system of municipal drinking water starting from the raw water intake up to community storage. Public health was assessed by using primary and secondary data. The presences of the indicator organism were considered for drinking water quality vis-a-vis public health. Multi-tube fermentation techniques employed to evaluate the indicator organism and the result expressed in the MPN. 52 sample per month were tested and totally 312 samples are tested entire the study period. The findings revealed that 26.28% of samples examined were positive for TCB, 9.29% for FCB and 0.96% for E. coli. 30% of the E.coli contamination was due to unhygienic handling of water after collection. Collected data show that 27.06% of cases admitted for laboratory test in the government health care centre were either waterborne or water related diseases. Among those positive samples for indicator organism, 79.89% of them were confirmed with the physical address of patients. Drinking water quality alteration in the study area is mainly at home due to unhygienic handling. Furthermore, illegal extension, infrastructural expansion, low initial concentration of chlorine, aging of pipeline, distribution by rotation and lack public awareness in general are the other main reasons for water quality impairment. These factors have to be considered to maintain public health in the area by any of concerned bodies.
description: Ethiopian Journal of Sciences and Sustainable Development, Vol 6 No 1 (2019): EJSSD
Static vacuum extensions with prescribed Bartnik boundary data near a general static vacuum metric
Creators: name: An, Zhongshan
name: Huang, Lan-Hsuan
Publisher: name: arXiv
Year: 2022
Subjects: subject: Differential Geometry (math.DG)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We introduce the notions of static regular of type (I) and type (II) and show that they are sufficient conditions for local well-posedness of solving asymptotically flat, static vacuum metrics with prescribed Bartnik boundary data. We then show that hypersurfaces in a very general open and dense family of hypersurfaces are static regular of type (II). As applications, we confirm Bartnik's static vacuum extension conjecture for a large class of Bartnik boundary data, including those that can be far from Euclidean and have large ADM masses, and give many new examples of static vacuum metrics with intriguing geometry.
description: v2 matches the version that appeared in the Annals of PDE. Comments welcome!
El esquema de asociaciones público-privadas en Colombia ¿La revolución de la infraestructura vial?
Creators: name: Anaya Latorre, María Camila
Publisher: name: Universidad Externado de Colombia
Year: 2023
Subjects: subject: Obras públicas
subject: Política pública
subject: Modelos económicos
subject: Concesión
subject: APP
subject: Infraestructura
subject: Vial

description: El presente documento desarrolla el concepto de contratos de concesión en infraestructura vial, presentando su contexto histórico desde 1991 hasta la fecha, enfatizando en el modelo de Asociación Público Privadas “APP”, adoptado en Colombia mediante la Ley 1508 de 2012. Es Importante mencionar, que la infraestructura vial en Colombia se agrupa en generaciones, a la fecha nos encontramos en la “Quinta Generación”. Inicialmente, se expone la evolución de los contratos de concesión vial de primera, segunda y tercera generación; sus normas aplicables, y los documentos de política pública que los priorizaron. Posteriormente, presenta una aproximación al concepto APP en países de Reino Unido, Europa y Latinoamérica, para abordar un análisis comparado con el esquema APP desarrollado en Colombia, primordialmente respecto de los lineamientos establecidos para la estructuración y contratación de la “Cuarta Generación de Concesiones”, desatacando lineamientos socioambientales, la variable ambiental de que trata el artículo 39 de la Ley 1682 de 2013 y el documento CONPES 3760 de 2013. Finalmente, se exhiben los retos evidenciados en la “Cuarta Generación de Concesiones”, para introducir las acciones que se aplicaron en la “Quinta Generación de Concesiones” como respuesta a los desafíos presentados.
description: This document develops the concept concession contracts for road infrastructures, presenting its historical context from 1991 to the present date, emphasizing in Public Private Association "APP" model, adopted in Colombia through Law 1508 of 2012. It is important to mention that the road infrastructure in Colombia is grouped into generations, currently we are in the "Fifth Generation". Initially, this document present the evolution of the first, second and third generation of concession contracts for road infrastructure; then it presents their applicable regulations, and the public policy documents that prioritized them. Subsequently, it presents an approach to the APP concept in countries from United Kingdom, Europe and Latin America, to expose a comparative analysis against the APP scheme developed in Colombia, primarily, respect to the guidelines established for the structuring and contracting of the "Fourth Generation of Concessions", highlighting socio-environmental guidelines, the environmental variable dealt with in article 39 of Law 1682 of 2013 and the document CONPES 3760 of 2013. Finally, this document exhibited the challenges evidenced in the "Fourth Generation of Concessions", to introduce the actions that were applied in the "Fifth Generation of Concessions" in response to the challenges presented.