cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
“The Shade of It All”: How Black Women Use Instagram and YouTube to Contest Colorism in the Beauty Industry
Creators: name: Childs, Kiara M.
Publisher: name: SAGE Publications Ltd
Year: 2022

description: This article examines the affordances of Instagram and YouTube in leveraging Black women the ability to contest antiblackness and colorism in the beauty industry. Specifically, I examine how prominent Black beauty influencers, Jackie Aina and Nyma Tang, and everyday Black women respond to the cosmetic brand, Beautyblender, and their lack of foundation shades in the initial release of their first foundation. Using Critical technocultural discourse analysis (CTDA), I explore the importance of Black women?s content creation and call-out practices within racist beauty culture. I argue that Instagram and YouTube afford Black women the ability to contest antiblackness and colorism in the beauty industry and practice traditional Black feminist traditions such as self-definition and self-empowerment. Overall, I illuminate how Instagram and YouTube became sites of contention between brands, users, influencers, to engage in discourse about the political economy and material culture of Black beauty.
title: Five Stories and a Novella for Young Adults
Creators: name: Hughes, Ronald Vincent
Publisher: name: Old Dominion University
publisherIdentifier: https://ror.org/04zjtrb98
publisherIdentifierScheme: ROR
Year: 1992

description: In these stories myth affects the daily events of the central characters' lives. Sometimes these myths can be clearly delineated as broad archetypes. Often they are personalized or distorted so that they are more difficult to detect. In these stories, one can find the mythical or archetypical characters interacting with characters you might find in any town and affecting ordinary everyday occurrences.

The same myths that the characters sometimes share can lead to both external and internal conflict. When the characters in these stories attempt to resolve these conflicts, they often discover unexpected revelations about themselves and their situations.
The sociology of Emile Durkheim in relation to the history of ideas on freedom and constraint
Creators: name: Smith, Robert S.
Publisher: name: Loughborough University
Year: 2020
Subjects: subject: 169999 Studies in Human Society not elsewhere classified
subject: FOS: Sociology

description: This thesis describes the history of a particular idea-complex, its origins and subsequent development in relation to the question of freedom and constraint and to the sociology of Emile Durkheim. The changes in this pattern of ideas are traced through to Rousseau and through its totalitarian democratic and romantic phases. The sociology of Emile Durkheim is seen to be a response to the problems of his age, in terms of this earlier tradition, but reformulated in a positive scientific manner. Consequently the aim of the thesis is to redirect attention to the parallels with such a tradition in Durkheim's thought that hitherto have been neglected.
It's not easy being blue: Are there olfactory and visual trade-offs in plant signalling?
Creators: name: Valenta, Kim
name: Brown, Kevin A.
name: Melin, Amanda D.
name: Monckton, Spencer K.
name: Styler, Sarah A.
name: Jackson, Derek A.
name: Chapman, Colin A.
Publisher: name: San Francisco, CA : Public Library of Science
Year: 2015
Subjects: subject: volatile organic compound
subject: fragrance
subject: pigment
subject: 550

description: Understanding the signals used by plants to attract seed disperses is a pervasive quest in evolutionary and sensory biology. Fruit size, colour, and odour variation have long been discussed in the controversial context of dispersal syndromes targeting olfactory-oriented versus visually-oriented foragers. Trade-offs in signal investment could impose important physiological constraints on plants, yet have been largely ignored. Here, we measure the reflectance and volatile organic compounds of a community of Malagasy plants and our results indicate that extant plant signals may represent a trade-off between olfactory and chromatic signals. Blue pigments are the most visually-effective – blue is a colour that is visually salient to all known seed dispersing animals within the study system. Additionally, plants with blue-reflecting fruits are less odiferous than plants that reflect primarily in other regions of the colour spectrum.
A 5-year-old with new-onset diabetes presenting with ketoacidosis, acute pancreatitis, and renal failure
Creators: name: Shenoy, V.
name: Levenson, A.
name: Kihlstrom, M.
name: Alexander, S.M.
Publisher: name: SAGE Publications Ltd
Year: 2022

description: A 5-year-old girl presented to the emergency room with altered mental status secondary to severe diabetic ketoacidosis due to new-onset GAD65 antibody positive, type 1 diabetes mellitus. On hospital day 0, she developed anuria, shock, and hypertriglyceridemia-associated acute pancreatitis. Following intravenous insulin therapy, the patient?s ketoacidosis improved. Her other complications persisted for several days and improved only with significant fluid resuscitation and supportive interventions, including intubation, thoracostomy, and vasopressors. This case underscores the importance of recognizing the early warning signs of diabetic ketoacidosis and reviews how to appropriately manage its associated life-threatening complications.
Alignment of Protostars and Circumstellar Disks During the Embedded Phase
Creators: name: Spalding, Christopher
name: Batygin, Konstantin
name: Adams, Fred C.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Star formation proceeds via the collapse of a molecular cloud core over multiple dynamical timescales. Turbulence within cores results in a spatially non-uniform angular momentum of the cloud, causing a stochastic variation in orientation of the disk forming from the collapsing material. In the absence of star-disk angular momentum coupling, such disk-tilting would provide a natural mechanism for production of primordial spin-orbit misalignments in the resulting planetary systems. However, owing to high accretion rates in the embedded phase of star formation, the inner edge of the circumstellar disk extends down to the stellar surface, resulting in efficient gravitational and accretional angular momentum transfer between the star and the disk. Here, we demonstrate that the resulting gravitational coupling is sufficient to suppress any significant star-disk misalignment, with accretion playing a secondary role. The joint tilting of the star-disk system leads to a stochastic wandering of star-aligned bipolar outflows. Such wandering widens the effective opening angle of stellar outflows, allowing for more efficient clearing of the remainder of the protostar's gaseous envelope. Accordingly, the processes described in this work provide an additional mechanism responsible for sculpting the stellar Initial Mass Function (IMF).
description: 6 pages, 3 Figures, Accepted for publication in The Astrophysical Journal Letters
Additional file 3 of B-1 derived anti-Thy-1 B cells in old aged mice develop lymphoma/leukemia with high expression of CD11b and Hamp2 that different from TCL1 transgenic mice
Creators: name: Hayakawa, Kyoko
name: Zhou, Yan
name: Shinton, Susan A.
Publisher: name: figshare
Year: 2024
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Neuroscience
subject: Physiology
subject: Evolutionary Biology
subject: Immunology
subject: FOS: Clinical medicine
subject: Developmental Biology
subject: Cancer
subject: Mental Health
subject: Hematology

description: Additional file 3: Figure S3. AGcA generation of NZ B and old aged generation of macrophages++ and intestinal tumor.
Grandparents-Caregiver_Do-File STATA
Creators: name: AKOKUWEBE, Monica Ewomazino
Publisher: name: Zenodo
Year: 2023
Subjects: Ageing
contemporary issues
demographic correlates,
grandparent caregiver

description: Do-File for Analysis
description: None
description: {"references": ["Ncamsile, D.M.; Morojele, P.J. Grandparents raising their grandchildren: Implications for the vulnerable children of Eswatini. South African Journal of Childhood Education, 2022; 12 (1), 1-9."]}
Externally-triggerable optical pump-probe scanning tunneling microscopy with a time resolution of tens-picosecond
Creators: name: Iwaya, Katsuya
name: Yokota, Munenori
name: Hanada, Hiroaki
name: Mogi, Hiroyuki
name: Yoshida, Shoji
name: Takeuchi, Osamu
name: Miyatake, Yutaka
name: Shigekawa, Hidemi
Publisher: name: arXiv
Year: 2023
Subjects: subject: Optics (physics.optics)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Photoinduced carrier dynamics of nanostructures play a crucial role in developing novel functionalities in advanced materials. Optical pump-probe scanning tunneling microscopy (OPP-STM) represents distinctive capabilities of real-space imaging of such carrier dynamics with nanoscale spatial resolution. However, combining the advanced technology of ultrafast pulsed lasers with STM for stable time-resolved measurements has remained challenging. The recent OPP-STM system, whose laser-pulse timing is electrically controlled by external triggers, has significantly simplified this combination but limited its application due to nanosecond temporal resolution. Here we report an externally-triggerable OPP-STM system with a temporal resolution in the tens-picosecond range. We also realize the stable laser illumination of the tip-sample junction by placing a position-movable aspheric lens driven by piezo actuators directly on the STM stage and by employing an optical beam stabilization system. We demonstrate the OPP-STM measurements on GaAs(110) surfaces, observing carrier dynamics with a decay time of $\sim170$ ps and revealing local carrier dynamics at features including a step edge and a nanoscale defect. The stable OPP-STM measurements with the tens-picosecond resolution by the electrical control of laser pulses highlight the potential capabilities of this system for investigating nanoscale carrier dynamics of a wide range of functional materials.
description: 24 pages, 9 figures
Un lampo obliquo. Luigi Bernardi, i suoi libri e il suo immaginario
Creators: name: Milani, Filippo
name: Sebastiani, Alberto
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2022
Subjects: L-FIL-LET/11 Letteratura italiana contemporanea

description: In occasione del decennale della morte di Luigi Bernardi (Ozzano dell’Emilia, 1953 - Bologna, 2013), il volume - a cura di Filippo Milani e Alberto Sebastiani - raccoglie gli atti relativi all’evento di inaugurazione del Fondo “Luigi Bernardi”, che si è svolto il 17 gennaio 2020 presso gli spazi del Dipartimento di Filologia classica e Italianistica dell’Università di Bologna, poche settimane prima che la pandemia sconvolgesse le vite di tutte e tutti noi. Si è trattato della prima iniziativa volta a valorizzare il Fondo archivistico e librario dello scrittore emiliano, che merita di certo ulteriori studi e approfondimenti, volti a indagare sia l’attività creativa di Bernardi sia quella di editore, traduttore, promotore culturale e scopritore di talenti letterari e fumettistici, soprattutto nell’ambito del genere noir. In quell’occasione era stata allestita anche una mostra virtuale - tuttora accessibile - che offre una prima visione panoramica sugli interessi dell’autore e sulla composizione della sua biblioteca.
Nano-artifact metrics based on random collapse of resist
Creators: name: Matsumoto, Tsutomu
name: Hoga, Morihisa
name: Ohyagi, Yasuyuki
name: Ishikawa, Mikio
name: Naruse, Makoto
name: Hanaki, Kenta
name: Suzuki, Ryosuke
name: Sekiguchi, Daiki
name: Tate, Naoya
name: Ohtsu, Motoichi
Publisher: name: arXiv
Year: 2014
Subjects: subject: Cryptography and Security (cs.CR)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Emerging Technologies (cs.ET)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: Artifact metrics is an information security technology that uses the intrinsic characteristics of a physical object for authentication and clone resistance. Here, we demonstrate nano-artifact metrics based on silicon nanostructures formed via an array of resist pillars that randomly collapse when exposed to electron-beam lithography. The proposed technique uses conventional and scalable lithography processes, and because of the random collapse of resist, the resultant structure has extremely fine-scale morphology with a minimum dimension below 10 nm, which is less than the resolution of current lithography capabilities. By evaluating false match, false non-match and clone-resistance rates, we clarify that the nanostructured patterns based on resist collapse satisfy the requirements for high-performance security applications.
Nuevo sistema integrado cromatografía líquida de alta resolución / nebulizador hidráulico de alta presión y temperatura (HPLC/HT-HHPN) para la separación automática de la matriz en la determinación de metales en salmueras con espectrometría de absorción atómica (FAAS)
Creators: name: Yáñez, J.
name: Berndt, H.
Publisher: name: Sao Paulo : Scielo
Year: 2000
Subjects: subject: Heavy metals
subject: matrix interferences
subject: saline solutions
subject: sample pretreatment
subject: nebulization
subject: HT-HHPN
subject: Metales pesados
subject: interferencias
subject: soluciones salinas
subject: tratamiento de muestras
subject: nebulización
subject: 540

description: An integrated HPF-system using HPLC and HT-HHP-nebulizer is used for matrix separation by the determination of heavy metals in highly concentrated solutions with FAAS. The separation of the matrix (NaCl) is achieved in a HPLC RP-C18 column after heavy metal complexing with trans-1,2-diaminciclohexane-N,N,N ,N -tetraacetic acid (CDTA). Matrix separation and the metal determination can be realized in less than one minute, without any interference from the matrix. The detection limits of Cd(II), Co(II), Cr(VI), Cu(II), Mn(II) and Zn(II) by FAAS were improved in one order of magnitude in compare with the direct determination by pneumatic nebulization nebulizer.
description: Un sistema de flujo de alta eficiencia en espectrometría atómica (HPF-AS) es implementado mediante la combinación de HPLC y un nebulizador hidráulico de alta temperatura y presión (HT-HHPN). Este sistema se aplicó para la separación de la matriz en muestras de salmueras de la industria de cloro-soda, lográndose la determinación de trazas de metales pesados (mg/L) en estas salmueras sin interferencias de la matriz. La separación de la matriz de NaCl se realiza en una columna de HPLC (C18) después de complejar los metales pesados con el ácido trans-1,2-diaminociclohexano, N,N,N ,N -tatraacético (CDTA). La separación de la matriz y la determinación de los metales puede ser realizada en un tiempo inferior a 1 minuto. Los límites de detección de Cd(II), Co(II), Cu(II), Mn(II) y Zn(II) en FAAS fueron mejorados en más de un orden de magnitud en comparación con la determinación convencional o directa mediante un nebulizador neumático.
Fisioterapia post intervento cardiochirurgico in età pediatrica. Esercizi e consigli per la riabilitazione
Creators: name: Lambertini, Elisa
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2023
Subjects: MED/11 Malattie dell'apparato cardiovascolare
MED/34 Medicina fisica e riabilitativa
MED/38 Pediatria generale e specialistica
MED/39 Neuropsichiatria infantile
MED/48 Scienze infermieristiche e tecniche neuro-psichiatriche e riabilitative

description: A seguito di un'attenta revisione della letteratura, è stato redatto un opuscolo per accompagnare il programma riabilitativo fisioterapico di un paziente di età pediatrica sottoposto ad un intervento cardiochirurgico. L'opuscolo inizia spiegando l'importanza della presa in carico riabilitativa in ospedale, a partire dalla terapia intensiva fino al ritorno a casa della famiglia. Successivamente fornisce una serie di esercizi progressivi che il fisioterapista può usare come supporto nella pratica clinica quotidiana con i pazienti e le loro famiglie. Infine, presenta alcune risposte alle domande più frequenti che le famiglie possono avere prima della dimissione. Non solo: all'interno dell'opuscolo è stato inserito anche un diario, che il paziente può utilizzare per annotare l'andamento della sua attività fisica e monitorare i suoi progressi giorno per giorno. Oltre l'approccio basato sull'Evidence Based Practice (EBP), usato per definire il contenuto scientifico dell'opuscolo, grande rilevanza è stata data alle illustrazioni che accompagnano i testi. Queste sono state ideate per rendere l'opuscolo comprensibile a tutta la famiglia e lo rendono uno strumento adatto alla riabilitazione in età pediatrica.
A Call to Action to Public Health Institutions and Teaching to Incorporate Mass Incarceration as a Sociostructural Determinant of Health
Creators: name: McCauley, E.J.
name: Behne, M.F.
name: Brinkley-Rubinstein, L.
name: LeMasters, K.
Publisher: name: SAGE Publications Ltd
Year: 2022

description: Mass incarceration refers to the system of social and racial control in the United States that arrests, convicts, incarcerates, and supervises racial and ethnic minority populations through probation and parole. Mass incarceration is referred to as “mass” because the current size of this system in the United States is historically and internationally unparalleled. Mass incarceration affects those who are incarcerated and under community supervision, as well as the families and communities where it is concentrated. Mass incarceration is a pervasive cause of health inequities in the United States.
Additional file 5 of B-1 derived anti-Thy-1 B cells in old aged mice develop lymphoma/leukemia with high expression of CD11b and Hamp2 that different from TCL1 transgenic mice
Creators: name: Hayakawa, Kyoko
name: Zhou, Yan
name: Shinton, Susan A.
Publisher: name: figshare
Year: 2024
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Neuroscience
subject: Physiology
subject: Evolutionary Biology
subject: Immunology
subject: FOS: Clinical medicine
subject: Developmental Biology
subject: Cancer
subject: Mental Health
subject: Hematology

description: Additional file 5.
ORC1 binds to cis-transcribed RNAs for efficient activation of replication origins.
Creators: name: Mas, Aina Maria
name: Goñi, Enrique
name: de los Mozos, Igor Ruiz
name: Arcas, Aida
name: Statello, Luisa
name: González, Jovanna
name: Blázquez, Lorea
name: Lee, Wei Ting Chelsea
name: Gupta, Dipika
name: Sejas, Álvaro
name: Hoshina, Shoko
name: Armaos, Alexandros
name: Tartaglia, Gian Gaetano
name: Waga, Shou
name: Ule, Jernej
name: Rothenberg, Eli
name: Gómez, María
name: Huarte, Maite
Publisher: name: The Francis Crick Institute
Year: 2023
Subjects: subject: Neurosciences
subject: FOS: Clinical medicine
subject: Biochemistry & Proteomics
subject: Gene Expression
subject: Genetics & Genomics
subject: Stem Cells
subject: Ecology,Evolution & Ethology
subject: Computational & Systems Biology

description: Cells must coordinate the activation of thousands of replication origins dispersed throughout their genome. Active transcription is known to favor the formation of mammalian origins, although the role that RNA plays in this process remains unclear. We show that the ORC1 subunit of the human Origin Recognition Complex interacts with RNAs transcribed from genes with origins in their transcription start sites (TSSs), displaying a positive correlation between RNA binding and origin activity. RNA depletion, or the use of ORC1 RNA-binding mutant, result in inefficient activation of proximal origins, linked to impaired ORC1 chromatin release. ORC1 RNA binding activity resides in its intrinsically disordered region, involved in intra- and inter-molecular interactions, regulation by phosphorylation, and phase-separation. We show that RNA binding favors ORC1 chromatin release, by regulating its phosphorylation and subsequent degradation. Our results unveil a non-coding function of RNA as a dynamic component of the chromatin, orchestrating the activation of replication origins.
Randomness in highly reflective silver nanoparticles and their localized optical fields
Creators: name: Naruse, Makoto
name: Tani, Takeharu
name: Yasuda, Hideki
name: Tate, Naoya
name: Ohtsu, Motoichi
name: Naya, Masayuki
Publisher: name: arXiv
Year: 2014
Subjects: subject: Optics (physics.optics)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Reflection of near-infrared light is important for preventing heat transfer in energy saving applications. A large-area, mass-producible reflector that contains randomly distributed disk-shaped silver nanoparticles and that exhibits high reflection at near-infrared wavelengths was demonstrated. Although resonant coupling between incident light and the nanostructure of the reflector plays some role, what is more important is the geometrical randomness of the nanoparticles, which serves as the origin of a particle-dependent localization and hierarchical distribution of optical near-fields in the vicinity of the nanostructure. Here we show and clarified the unique optical near-field processes associated with the randomness seen in experimentally fabricated silver nanostructures by adapting a rigorous theory of optical near-fields based on an angular spectrum and detailed electromagnetic calculations.
Kitepower Deploying Airborne Wind Energy in Ireland
Creators: name: Schmehl, Roland
Publisher: name: Zenodo
Year: 2023
Subjects: WESC2023
Airborne Wind Energy

description: Kitepower will start operating its Falcon system on a new testing site in 2023. The testing site on the northwest coast of the Republic of Ireland has been developed specifically for Airborne Wind Energy in cooperation with a large energy company. The project is partially funded by the EU Interreg program MegaAWE. The site is located well within an uninhabited area of peatland, and the topography only features wide, low and shallow structures. The highest hill in the proximity is about 4.5 km to the NE and reaches about 150 m over the surrounding land. The closest road is 1.6 km to the east, and the closest houses are 1.5 km to the north of the site. The closest bigger airport is Ireland West International Airport in Knock which is about 70 km to the east, and there is Ballina Airfield, 40 km to the east and Bellmulet Aerodrome, 20 km to the west. The wind conditions on this site provide strong winds with predominant wind directions between W and SW. The mean wind speeds are 5 m/s and 11 m/s at 10 m and 200 m, respectively. So, in general, wind speeds are very often in the ideal range for airborne wind operations. Kitepower will deploy one of the 100kW Falcon systems to the site and get ready for continuous operation. The goal of the activities are: Gather long-term performance data. Operate reliability for a more extended period of time. Remote operation from the Netherlands. This talk will iterate over the past projects of Kitepower, including the Aruba deployment, highlight the challenges connected to this new project, and further present the implementation plan.
A Functional Assessment Tool to Distinguish Controls From Alzheimer’s Disease in Lima, Peru
Creators: name: Diaz, M.M.
name: Seminario G, W.
name: Failoc-Rojas, V.E.
name: Mesía, L.
name: Herrera-Perez, E.
name: Custodio, N.
name: Chambergo-Michilot, D.
name: Cuenca, J.
name: Montesinos, R.
name: Pintado-Caipa, M.
Publisher: name: SAGE Publications Ltd
Year: 2022

description: Background The Alzheimer's Disease Cooperative Study-Activities of Daily Living (ADCS-ADL) scale is a versatile functional assessment tool for patients with Alzheimer's disease (AD). We evaluated its performance in controls, Peruvians with MCI or AD. Methods A cross-sectional study of older adults attending a neurology institute in Lima (Peru) with mild cognitive impairment (MCI), ad or cognitively healthy. Test-retest reliability (intraclass correlation coefficient, ICC; internal consistency, Cronbach's alpha) and validity were assessed. Results We enrolled 276 individuals (AD: 113, MCI: 68, controls: 95) with no age, sex, educational level, and depressive symptom differences. Reliability was ideal (ICC: .996), and Cronbach's alpha was adequate (.937). The ADCS-ADL could not differentiate MCI from controls but did differentiate AD severity. The ADCS-ADL correlated highly with nearly all tools. Conclusions The ADCS-ADL scale is reliable in a population with AD in Lima, Peru. Future work may validate a tool for Peruvians with lower educational levels.
Kündigende Lehrpersonen – belastet, unzufrieden oder die Berufslaufbahn gestaltend?
Creators: name: Keller-Schneider, Manuela
Publisher: name: Zenodo
Year: 2019
Subjects: Lehrberuf
Lehrprofession
Laufbahn
Laufbahnplanung
Kündigungsverhalten

description: Aus welchen Gründen und mit welchen Zielen Lehrpersonen ihre Stelle kündigen und inwiefern das Kündigungsverhalten berufsphasenspezifisch geprägt ist, wurde bislang wenig erforscht. An diesem Punkt setzt der folgende Beitrag an und untersucht Kündigungsmotive von Lehrpersonen in unterschiedlichen Berufsphasen. Dabei wird nach Gründen und Zielen der Kündigung, nach einer möglichen Systematik ihrer Zusammenhänge sowie nach Unterschieden zwischen berufseinsteigenden und erfahrenen Lehrpersonen gesucht. Dieses Dokument unterliegt weiterhin dem Copyright des Verlags – 2019 © hep Verlag AG, Bern.
description: +repphzhbib2019A
Additional file 1 of Comparing the Impacts of Testosterone and Exercise on Lean Body Mass, Strength and Aerobic Fitness in Aging Men
Creators: name: Green, Daniel J.
name: Chasland, Lauren C.
name: Yeap, Bu B.
name: Naylor, Louise H.
Publisher: name: figshare
Year: 2024
Subjects: subject: Biophysics
subject: Biochemistry
subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: Ecology
subject: Cancer
subject: Cardiology

description: Additional file 1: Contains detailed tables comparing the impacts of testosterone and exercise training on lean mass, strength and fitness in aging men.
FellWalker - a Clump Identification Algorithm
Creators: name: Berry, David
Publisher: name: arXiv
Year: 2014
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: This paper describes the FellWalker algorithm, a watershed algorithm that segments a 1-, 2- or 3-dimensional array of data values into a set of disjoint clumps of emission, each containing a single significant peak. Pixels below a nominated constant data level are assumed to be background pixels and are not assigned to any clump. FellWalker is thus equivalent in purpose to the CLUMPFIND algorithm. However, unlike CLUMPFIND, which segments the array on the basis of a set of evenly-spaced contours and thus uses only a small fraction of the available data values, the FellWalker algorithm is based on a gradient-tracing scheme which uses all available data values. Comparisons of CLUMPFIND and FellWalker using a crowded field of artificial Gaussian clumps, all of equal peak value and width, suggest that the results produced by FellWalker are less dependent on specific parameter settings than are those of CLUMPFIND.
Resolving the strange behavior of extraterrestrial potassium in the upper atmosphere
Creators: name: Plane, J.M.C.
name: Feng, W.
name: Dawkins, E.
name: Chipperfield, M.P.
name: Höffner, J.
name: Janches, D.
name: Marsh, D.R.
Publisher: name: Hoboken, NJ : Wiley
Year: 2014
Subjects: subject: potassium layer
subject: mesospheric metal
subject: meteoric ablation
subject: 550

description: It has been known since the 1960s that the layers of Na and K atoms, which occur between 80 and 105 km in the Earth's atmosphere as a result of meteoric ablation, exhibit completely different seasonal behavior. In the extratropics Na varies annually, with a pronounced wintertime maximum and summertime minimum. However, K varies semiannually with a small summertime maximum and minima at the equinoxes. This contrasting behavior has never been satisfactorily explained. Here we use a combination of electronic structure and chemical kinetic rate theory to determine two key differences in the chemistries of K and Na. First, the neutralization of K+ ions is only favored at low temperatures during summer. Second, cycling between K and its major neutral reservoir KHCO3 is essentially temperature independent. A whole atmosphere model incorporating this new chemistry, together with a meteor input function, now correctly predicts the seasonal behavior of the K layer.
MR.Brick: Designing A Remote Mixed-reality Educational Game System for Promoting Children's Social & Collaborative Skills
Creators: name: Wu, Yudan
name: You, Shanhe
name: Guo, Zixuan
name: Li, Xiangyang
name: Zhou, Guyue
name: Gong, Jiangtao
Publisher: name: arXiv
Year: 2023
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences
subject: H.5.2

description: Children are one of the groups most influenced by COVID-19-related social distancing, and a lack of contact with peers can limit their opportunities to develop social and collaborative skills. However, remote socialization and collaboration as an alternative approach is still a great challenge for children. This paper presents MR.Brick, a Mixed Reality (MR) educational game system that helps children adapt to remote collaboration. A controlled experimental study involving 24 children aged six to ten was conducted to compare MR.Brick with the traditional video game by measuring their social and collaborative skills and analyzing their multi-modal playing behaviours. The results showed that MR.Brick was more conducive to children's remote collaboration experience than the traditional video game. Given the lack of training systems designed for children to collaborate remotely, this study may inspire interaction design and educational research in related fields.
description: 14 pages, 9 figures
Effect of Stacking Fault Energy on Mechanism of Plastic Deformation in Nanotwinned FCC Metals
Creators: name: Borovikov, Valery
name: Mendelev, Mikhail I.
name: King, Alexander H.
name: LeSar, Richard
Publisher: name: arXiv
Year: 2015
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Starting from a semi-empirical potential designed for Cu, we developed a series of potentials that provide essentially constant values of all significant (calculated) materials properties except for the intrinsic stacking fault energy, which varies over a range that encompasses the lowest and highest values observed in nature. These potentials were employed in molecular dynamics (MD) simulations to investigate how stacking fault energy affects the mechanical behavior of nanotwinned face-centered cubic (fcc) materials. The results indicate that properties such as yield strength and microstructural stability do not vary systematically with stacking fault energy, but rather fall into two distinct regimes corresponding to low and high stacking fault energies.
Analysis of GeV-band gamma-ray emission from SNR RX J1713.7-3946
Creators: name: Federici, S.
name: Pohl, M.
name: Telezhinsky, I.
name: Wilhelm, A.
name: Dwarkadas, V. V.
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: RX J1713.7-3946 is the brightest shell-type Supernova remnant (SNR) of the TeV gamma-ray sky. Earlier Fermi-LAT results on low-energy gamma-ray emission suggested that, despite large uncertainties in the background determination, the spectrum is inconsistent with a hadronic origin. We update the GeV-band spectra using improved estimates for the diffuse galactic gamma-ray emission and more than doubled data volume. We further investigate the viability of hadronic emission models for RX J1713.7-3946. We produced a high-resolution map of the diffuse Galactic gamma-ray background corrected for HI self-absorption and used it in the analysis of more than 5~years worth of Fermi-LAT data. We used hydrodynamic scaling relations and a kinetic transport equation to calculate the acceleration and propagation of cosmic-rays in SNR. We then determined spectra of hadronic gamma-ray emission from RX J1713.7-3946, separately for the SNR interior and the cosmic-ray precursor region of the forward shock, and computed flux variations that would allow to test the model with observations. We find that RX J1713.7-3946 is now detected by Fermi-LAT with very high statistical significance, and the source morphology is best described by that seen in the TeV band. The measured spectrum of RX J1713.7-3946 is hard with index gamma=1.53 +/- 0.07, and the integral flux above 500 MeV is F = (5.5 +/- 1.1)e-9 photons/cm^2/s. We demonstrate that scenarios based on hadronic emission from the cosmic-ray precursor region are acceptable for RX J1713.7-3946, and we predict a secular flux increase at a few hundred GeV at the level of around 15% over 10 years, which may be detectable with the upcoming CTA observatory.
description: 9 pages, accepted for publication in Astronomy & Astrophysics
A qualitative analysis of Medicaid beneficiaries perceptions of prenatal and immediate postpartum contraception counseling
Creators: name: Greene, S.
name: Yates, L.
name: Weinberger, M.
name: Thompson, T.-A.
name: Stuart, G.S.
name: Hassmiller Lich, K.
name: Birken, S.
Publisher: name: SAGE Publications Ltd
Year: 2022

description: Objectives: In the United States, about four out of every ten births are financed by Medicaid, making it a program that is key in addressing racial disparities in maternal health. Many women covered by Medicaid have access to prenatal and immediate postpartum contraception counseling that can aid them in their postpartum contraception decision-making. However, existing inequities within Medicaid and a history of reproductive harms targeting Black women and women with low incomes may contribute to women with Medicaid having different experiences of contraception counseling. This qualitative study explores how Black women and White women insured by Medicaid perceive prenatal and immediate postpartum contraception counseling and identifies additional factors that shape their contraception decision-making. Methods: We conducted semi-structured interviews with 15 Medicaid beneficiaries who delivered at a public teaching hospital in North Carolina. Interviews focused on women?s beliefs about planning for pregnancy, experiences with prenatal and immediate postpartum contraception counseling, and perceived need for postpartum contraception. We used a priori and emergent codes to analyze interviews. Results: Seven Black women and eight White women completed interviews 14-60 days postpartum. All women reported receiving prenatal and immediate postpartum counseling. Several women described receiving prenatal counseling, reflective of patient-centered contraception counseling, that helped in their postpartum contraception decision-making; one woman described receiving immediate postpartum counseling that helped in her decision-making. Some Black women reported receiving unsupportive/coercive contraception counseling. In addition to contraception counseling, past reproductive health experiences and future pregnancy intentions were salient to women's contraception decision-making.Conclusions:Prenatal and immediate postpartum contraception counseling can help some Medicaid beneficiaries with their postpartum contraception decision, but past reproductive health experiences and future pregnancy intentions are also relevant. Counseling that does not consider these experiences may be harmful, particularly to Black women, further contributing to racial disparities in maternal postpartum health outcomes.
Y Chromosome of Aisin Gioro, the Imperial House of Qing Dynasty
Creators: name: Yan, Shi
name: Tachibana, Harumasa
name: Wei, Lan-Hai
name: Yu, Ge
name: Wen, Shao-Qing
name: Wang, Chuan-Chao
Publisher: name: arXiv
Year: 2014
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: FOS: Biological sciences

description: House of Aisin Gioro is the imperial family of the last dynasty in Chinese history - Qing Dynasty (1644 - 1911). Aisin Gioro family originated from Jurchen tribes and developed the Manchu people before they conquered China. By investigating the Y chromosomal short tandem repeats (STRs) of 7 modern male individuals who claim belonging to Aisin Gioro family (in which 3 have full records of pedigree), we found that 3 of them (in which 2 keep full pedigree, whose most recent common ancestor is Nurgaci) shows very close relationship (1 - 2 steps of difference in 17 STR) and the haplotype is rare. We therefore conclude that this haplotype is the Y chromosome of the House of Aisin Gioro. Further tests of single nucleotide polymorphisms (SNPs) indicates that they belong to Haplogroup C3b2b1*-M401(xF5483), although their Y-STR results are distant to the "star cluster", which also belongs to the same haplogroup. This study forms the base for the pedigree research of the imperial family of Qing Dynasty by means of genetics.
description: 11 pages, 3 figures, 2 tables. Submitted on 2014.12.19, in advance to acception by a journal. A parallel Chinese version is also available
Observation of highly anisotropic bulk dispersion and spin-polarized topological surface states in CoTe2
Creators: name: Chakraborty, Atasi
name: Fujii, Jun
name: Kuo, Chia-Nung
name: Lue, Chin Shan
name: Politano, Antonio
name: Vobornik, Ivana
name: Agarwal, Amit
Publisher: name: arXiv
Year: 2023
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present CoTe2 as a new type-II Dirac semimetal supporting Lorentz symmetry violating Dirac fermions in the vicinity of the Fermi energy. By combining first principle ab-initio calculations with experimental angle-resolved photo-emission spectroscopy results, we show the CoTe2 hosts a pair of type-II Dirac fermions around 90 meV above the Fermi energy. In addition to the bulk Dirac fermions, we find several topological band inversions in bulk CoTe2, which gives rise to a ladder of spin-polarized surface states over a wide range of energies. In contrast to the surface states which typically display Rashba-type in-plane spin splitting, we find that CoTe2 hosts novel out-of-plane spin polarization as well. Our work establishes CoTe2 as a potential candidate for the exploration of Dirac fermiology and applications in spintronic devices, infrared plasmonics, and ultrafast optoelectronics.
description: 9 pages,7 figures, Accepted in Phys. Rev. B
Implementation of Z-vector method in the relativistic coupled cluster framework to calculate first order energy derivatives: Application to SrF molecule
Creators: name: Sasmal, Sudip
name: Pathak, Himadri
name: Nayak, Malaya K.
name: Vaval, Nayana
name: Pal, Sourav
Publisher: name: arXiv
Year: 2015
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: The molecular dipole moment and magnetic hyperfine structure constant demand an accurate wavefunction far from the nucleus and in near nuclear region, respectively. We, therefore, employ the so-called Z-vector method in the domain of relativistic coupled cluster theory to calculate the first order property of molecular systems in their open-shell ground state configuration. The implemented method is applied to calculate molecular dipole moment and parallel component of the magnetic hyperfine structure constant of SrF molecule. The results of our calculation are compared with the experimental and other available theoretically calculated values. We are successful in achieving good accordance with the experimental results. The result of our calculation of molecular dipole moment is in the accuracy of ~? 0.5 %, which is clearly an improvement over the previous calculation based on the expectation value method in the four component coupled cluster framework [V. S. Prasannaa et al, Phys. Rev. A 90, 052507 (2014)] and it is the best calculated value till date. Thus, it can be inferred that the Z vector method can provide an accurate wavefunction in both near and far nuclear region, which is evident from our calculated results.
description: 5 pages, 1 figure, Comments are welcome
Estimate of size distribution of charged MSPs measured in situ in winter during the WADIS-2 sounding rocket campaign
Creators: name: Asmus, Heiner
name: Staszak, Tristan
name: Strelnikov, Boris
name: Lübken, Franz-Josef
name: Friedrich, Martin
name: Rapp, Markus
Publisher: name: München : European Geopyhsical Union
Year: 2017
Subjects: subject: Atmospheric composition and structure (middle atmosphere – composition and chemistry)
subject: 550

description: We present results of in situ measurements of mesosphere–lower thermosphere dusty-plasma densities including electrons, positive ions and charged aerosols conducted during the WADIS-2 sounding rocket campaign. The neutral air density was also measured, allowing for robust derivation of turbulence energy dissipation rates. A unique feature of these measurements is that they were done in a true common volume and with high spatial resolution. This allows for a reliable derivation of mean sizes and a size distribution function for the charged meteor smoke particles (MSPs). The mean particle radius derived from Schmidt numbers obtained from electron density fluctuations was ∼ 0.56 nm. We assumed a lognormal size distribution of the charged meteor smoke particles and derived the distribution width of 1.66 based on in situ-measured densities of different plasma constituents. We found that layers of enhanced meteor smoke particles' density measured by the particle detector coincide with enhanced Schmidt numbers obtained from the electron and neutral density fluctuations. Thus, we found that large particles with sizes > 1 nm were stratified in layers of ∼ 1 km thickness and lying some kilometers apart from each other.
A structural relationship model for L2 oral proficiency, L2 interest, perceived importance of speaking, and out-of-class L2 contact
Creators: name: Lin, Jia
Publisher: name: SAGE Publications Ltd
Year: 2022

description: Using a structural equation modeling approach, this study investigates the structural relationships between second language (L2) oral proficiency and interest in learning the target language (L2 interest), in the presence of potential mediating variables (i.e. perceived importance of speaking, out-of-class contact with L2 resources). It also examines if interactive and noninteractive out-of-class L2 contact function differently in the structural model. Data were collected from 1,922 college students taking Chinese, French, Russian, and Spanish language classes in the United States. Key findings suggest that (1) L2 interest, as one measure of integrativeness and intrinsic motivation, strongly drives L2 oral development. However, its effect is completely mediated by the perceived importance of speaking; (2) Out-of-class L2 contact, either interactive or noninteractive, significantly correlates with L2 interest but has no significant effect on L2 oral proficiency; (3) however, interactive and noninteractive out-of-class L2 contact still function differently in the structural relationship. Interactive language practice based on digital tools could play a promising role in future L2 learning. Pedagogical implications are presented in the discussion section.
Concepts of Metagenomics in Rumen Manipulation
Creators: name: Sarita Mahicha1, Manju2, Sheela choudhary3, Monika karnani4 and Anisha5
Publisher: name: The Science world a Monthly e magazine
Year: 2023

description: The genetic and biological variety of microbes is an important topic of scientific study. The ability of ruminants to convert locally available feedstock to animal products should be enhanced given the significance of ruminants in livestock strategy. The structure and function of rumen communities may now be studied more comprehensively as a result of recent developments in molecular biology and genomics. Today's rumen microbiologists face a significant difficulty in trying to comprehend how complex microbial communities' function and how organisms interact within their niches. In order to identify the complex community of bacteria, protozoa, archae, and fungi, among others, and to understand how they interact, metagenomics is helpful. Understanding how microbial communities function is one of the main objectives of rumen microbiology. It aids in both the immunomodulation of both animals and poultry as well as the formulation of feed ingredients containing probiotics.
title: The role of motivation in promoting self-determined, self-regulated learners in a fully online, self-paced, asynchronous learning environment, and practical strategies to ensure learner success
Creators: name: Himmelright, Shannon V.
Publisher: name: Electronic version published by Vancouver Island University
Year: 2020
Subjects: subject: Motivation in education

description: Learner motivation is a significant topic in all educational settings, and lack thereof is of particular relevance in the online learning environment. High attrition rates and learner disengagement are unintended consequences of primarily extrinsically motivated learners, and the absence of strategies employed by educators to encourage intrinsic motivation. Self-Regulated Learning Theory (SRL) and Self-Determination Theory (SDT) are two theories of motivation that educators should consider when designing online courses, communicating with learners, and when offering feedback to learners. Informed by current research, this paper intends to address some of the challenges to success rates and learner engagement and offer practical solutions by addressing the Critical Challenge Question, ‘What is the role of motivation in promoting self-determined, self-regulated learners in a fully online, self-paced, asynchronous learning environment, and how can practical strategies be applied to ensure learner success?’ The findings of a comprehensive Literature Review have been applied to the creation of a website designed to provide online educators with practical solutions to encourage intrinsically motivated learners. The purpose of the website is to offer curated resources and functional tools for educators to successfully implement Self-Regulated Learning Theory and Self-Determination Theory into course design. Survey feedback validated the project build, and was applied to revisions of the website, and suggested that the goals of the website were achieved. Project limitations included educator awareness of the website content as well as time and desire to apply practical strategies. Future research and development is needed to address the topic of motivation, and best practices for educators to encourage intrinsically motivated learners.
Everything you always wanted to know about Open Science* (*But were afraid to ask)
Creators: name: Morales, Laura
Publisher: name: Zenodo
Year: 2023
Subjects: Open Science
Research Data Alliance
EOSC
Migration Studies

description: The presentations slides for a side event talk at the 2023 IMISCOE conference (University of Warsaw) on July 4. A hybrid onsite and online event organised as part of the official programme of the IMISCOE conference.