cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Dynamische Messung des Arbeitspunktes sowie der Chromatizität während des Beschleunigungsprozesses am Booster-Synchrotron vom BESSY II
Creators: name: Armborst, Felix
Publisher: name: Humboldt-Universität zu Berlin
Year: 2019
Subjects: subject: Teilchenbeschleuniger
subject: Synchrotron
subject: Arbeitspunkt
subject: Chromatizität
subject: Particle Accelerator
subject: Tune
subject: Chromaticity
subject: 530 Physik

description: Als angehender Physiker muss ich im zum Abschluss meines Bachelorstudiums eine Abschlussarbeit schreiben. Dabei war es mir selbst überlassen auszusuchen, in welchem Bereich ich mich dabei einarbeiten möchte. Da mich vor allem die Anwendung der Physik und insbesondere auch großtechnische Anlagen schon immer besonders interessiert haben, habe ich mich dazu entschlossen, mich auf das meiner Meinung nach spannendste Projekt in Adlershof zu konzentrieren: die Elektronenspeicherringanlage BESSY II. Nach einem Gespräch mit Prof. Dr. Jankowiak haben wir uns auf das erst einmal allgemein gehaltene Thema Messungen am Synchrotron geeinigt. Mit meinem Betreuer Dr. Kuske habe ich dann letztlich die Energieschwankungen des Linacs, die Energie- und Phasenakzeptanz des Synchrotrons, sowie die Oszillationen des Strahls im Synchrotron untersucht.
description: On my path to become a physicist I must finalise my bachelor studies with a thesis. In the course of this, I am free to choose the topic of my specialisation. Since applied physics and especially large scale research facilities have always raised my interest, I have decided to concentrate on the most fitting research facility in Berlin-Adlershof: the electron storage ring BESSY II. After talking to Prof. Andreas Jankowiak he agreed to support my bachelor studies on the BESSY II injector system and especially the booster synchrotron. Then Dr. Peter Kuske supervised my studies on the energy fluctuations of the injector linac, the phase acceptance of the synchrotron and the beam oscillations in the booster.
Impact of Federally Qualified Health Centers on Rates of Ambulatory Care Sensitive Conditions among Medicaid and Uninsured Populations in Maryland
Creators: name: Patanavanich, Roengrudee
Publisher: name: Maryland Shared Open Access Repository
Year: 2014

description: Ambulatory Care Sensitive Conditions (ACSCs) are conditions for which hospitalization and emergency department (ED) visits can be avoided if a person has better access to ambulatory care services. Rates and costs of hospital admission and ED visits for ACSCs have increased over the decade, especially for people without health insurance and/or on Medicaid. Objectives of this dissertation were to study ACSC rates in Maryland over time, identify areas where ACSC rates had been persistently high, determine factors that were associated with ACSCs, and examine if the expansion of FQHCs had decreased ACSCs in geographical areas over the study period. The study used Maryland hospital discharge data to identify ACSCs based on the Agency for Healthcare Research and Quality (AHRQ) definition of Prevention Quality Indicators (PQIs). A Zip Code Tabulation Area (ZCTA) was used as a unit of analysis. ACSCs and all controlled factors were calculated at the ZCTA level from 2000 to 2010. Negative binomial panel models were used to determine trends, and to estimate the impact of FQHCs and other factors on ACSCs. The study found that ACSC rates among Medicaid and uninsured patients had increased over time for several conditions while such conditions among total populations remained stable or decline. In addition, variations in hospitalization and ED visits for ACSCs existed across Maryland's counties and local areas, but the rates seemed consistent within the areas over time. Proportion of populations living in poverty had the largest and consistently positive relationship with most ACSC hospitalization and ED visit rates. The relationships between ACSCs and other socioeconomic factors are varied by type of condition. Importantly, the expansion of FQHCs had a significant association with lower rates of hospitalization and ED visits for several ACSC conditions. Thus, the expansion of FQHCs is associated with better access to primary care among Medicaid and uninsured populations.
Independent Vector Analysis: Theory, Algorithms, and Applications
Creators: name: Anderson, Matthew
Publisher: name: Maryland Shared Open Access Repository
Year: 2013
Subjects: Blind source separation
Canonical correlation analysis
Identification conditions
Independent component analysis
Independent vector analysis

description: The field of blind source separation (BSS) is a well studied discipline within the signal processing community due to its applicability to a variety of problems when the data observation model is poorly known or difficult to model. For example, in the study of the human brain with functional magnetic resonance imaging (fMRI), a neuroimaging sensor, BSS algorithms are able to provide medical researchers and practitioners with a decomposition of a three-dimensional `movie' of the brain that is amenable to analysis. BSS algorithms achieve this decomposition with only a few justifiable assumptions; this is contrary to methods based on the general linear model, which require prespecified models of the expected or desired response to achieve analysis of fMRI data. Most BSS algorithms consider just a single dataset, but it also desirable to have methods that can analyze multiple subjects or data collections in fMRI jointly, so as to provide insights beyond that achieved with individual analysis of single datasets. Several frameworks for using BSS on multiple datasets jointly have been proposed. The subject of this dissertation is the study of one of these frameworks, which has been termed independent vector analysis (IVA). IVA is a recent extension of the classical independent component analysis (ICA) model to BSS of multiple datasets and it has been the subject of significant research interest. In this dissertation, we provide a formulation of IVA that accounts for sources which possess properties such as a) following Gaussian or non-Gaussian distributions; b) samples are independently and identically distributed (iid) or are dependent; and c) having either linear or nonlinear dependence of sources between datasets. The proposed IVA formulation utilizes the likelihood to define the objective function. This formulation admits to theoretical analysis. In particular, we provide the identification conditions, i.e., we determine when the sources can be `blindly' recovered by IVA, and give a lower bound on the source separation performance. Several algorithms exist for achieving IVA. We provide several new approaches to developing IVA algorithms and apply these approaches using a Gaussian distribution source model and a more general Kotz distribution model. The former, in addition to leading to efficient IVA algorithms, serves as the distribution model that directly connects canonical correlation analysis (CCA) and ICA.
Tracing Quasar Accretion Rates at Higher Redshifts
Creators: name: Bachev, R. S.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In this work we connect some measurable properties of the CIV1549 emission line with the quasar accretion rates (Eddington ratios). A tight correlation is found for a sample of more than a hundred nearby objects, suggesting a possible method for a relatively accurate estimate of the Eddington ratio of high-redshift quasars, at least for the radio-quiet ones. This paper further confirms the existing notion that the CIV changes (shifts) are mostly driven by the accretion rate.
description: 4 pages, 1 figure. Presented at the 5-th Bulgarian-Serbian Conference "Astronomy and Space Science". To appear in Bulgarian Journal of Physics
Internal Space for the Noncommutative Geometry Standard Model and Strings
Creators: name: Lizzi, Fedele
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: In this paper I discuss connections between the noncommutative geometry approach to the standard model on one side, and the internal space coming from strings on the other. The standard model in noncommutative geometry is described via the spectral action. I argue that an internal noncommutative manifold compactified at the renormalization scale, could give rise to the almost commutative geometry required by the spectral action. I then speculate how this could arise from the noncommutative geometry given by the vertex operators of a string theory.
description: 1+22 pages. More typos and misprints corrected
Probing strong-field QED with Doppler-boosted PetaWatt-class lasers
Creators: name: Fedeli, Luca
name: Sainte-Marie, Antonin
name: Zaïm, Neil
name: Thévenet, Maxence
name: Vay, Jean-Luc
name: Myers, Andrew
name: Quéré, Fabien
name: Vincenti, Henri
Publisher: name: arXiv
Year: 2020
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: We propose a scheme to explore regimes of strong-field Quantum Electrodynamics (SF-QED) otherwise unattainable with the currently available laser technology. The scheme relies on relativistic plasma mirrors curved by radiation pressure to boost the intensity of PetaWatt-class laser pulses by Doppler effect and focus them to extreme field intensities. We show that very clear SF-QED signatures could be observed by placing a secondary target where the boosted beam is focused.
description: 5 figures
SIGMA-EST and Data submission - operative manual
Creators: name: Istituto Zooprofilattico Sperimentale dell'Abruzzo e del Molise Giuseppe Caporale
name: European Food Safety Authority
name: SIGMA Consortium
Publisher: name: Zenodo
Year: 2024
Subjects: SIGMA-EST tool
Data mapping
Animal population data model
African Swine Fever
SSD2 laboratory data model

description: This document is a manual for the users of the SIGMA-EST tool. You can access it via this link.

This set of instructions will guide you through the steps of mapping the content of your national database to the EFSA SIGMA data model components.
description: EU; pdf; zoonoses_support@efsa.europa.eu
Pulsed Electrochemical Detection of Sulfur-containing Antibiotics
Creators: name: Vavilala, Suma
Publisher: name: Maryland Shared Open Access Repository
Year: 2010
Subjects: Electrochemistry
Honey
Pulsed electrochemical detection
Solid-phase extraction
Sulfur-containing antibiotics

description: Sulfur-containing antibiotics are routinely used in both human and veterinary medicine for the treatment of bacterial infections. These compounds are also used in veterinary medicine for growth promotion, as well as for the prevention and treatment of bacterial bee diseases. If proper withdrawal times are not observed, food derived from these animals may be contaminated with residual amounts of antibiotics. The improper and illegal use of drugs will also often result in antibiotic residues in food. The presence of such residues in food is of toxicological and regulatory concern as these may cause allergic hypersensitivity reactions, and may also pose antibiotic resistance in humans. This research takes advantage of electrochemical detection (ECD), known for its inherent sensitivity and selectivity for electroactive compounds, for the determination of sulfur-containing antibiotics. Pulsed electrochemical detection (PED) with integrated pulsed amperometric detection (IPAD) waveform will be applied here; PED is sensitive, selective, and direct. Cyclic voltammetry (CV) was utilized to optimize the IPAD waveform parameters and to study the electrochemical properties of sulfur-containing antibiotics, as well as primary aromatic amines (PAAs). The developed waveform was applied for the quantitative determination of sulfonamides (SAs) in pharmaceutical formulations. Results obtained from the PED method were compared to those obtained using UV detection for the quantitative analysis of sulfa drugs in pharmaceutical formulations. HPLC-PED was found to be a valid method for the determination of sulfa drugs in pharmaceutical formulations. The developed waveform was also applied for the determination of sulfathiazole (STZ) and lincomycin in honey. HPLC-PED was found to be a valid method for sensitive and selective determination of the antibiotics in honey. Sample pretreatment was achieved by solid-phase extraction (SPE) using OASIS HLB cartridges. The method detection limits were determined to be 30 g*kg-1 60 g*kg-1 STZ and lincomycin, respectively. The high sensitivity and selectivity of PED for sulfa drugs and lincomycin reduces sample preparation and produces simpler chromatograms in complex matrices when compared to UV detection. IPAD provides an alternative means of detection for the determination of sulfur-containing antibiotics, many of which have poor chromophoric properties.
Increasing Base-Station Anonymity in Sensor Networks
Creators: name: Acharya, Uday Narayan
Publisher: name: Maryland Shared Open Access Repository
Year: 2009
Subjects: Anonymity
Sensor Networks

description: Sensors in a wireless sensor network (WSN) probe their surroundings and report their findings to a base-station over multi-hop paths. Given the important role of the base-station, an adversary who likes to disrupt the network operation would eagerly look for where the base-station could be and target it with attacks in order to inflict maximum damage. Unfortunately, the continuous flow of traffic towards the base-station creates a pronounced pattern of wireless links that may expose the base-station position and thus make the network more vulnerable. This thesis investigates means for boosting the anonymity of the base-station. First, we adapt three models -Entropy based model, GSAT test and Evidence theory model, to quantify anonymity of the base station. Then, two novel approaches for boosting the anonymity of the base-station are proposed. One is for the base-station to disguise itself by transmitting some of the data packets it receives with varying intensity. The goal is to create a perception that the base-station node is just another sensor node sending some information and thus confuse the adversary. Another approach is for the base station to relocate itself to a more concealed position within the network. Relocating the base station completely scraps/nullifies the adversary's efforts to track it down and forces him to start his search from scratch. This thesis investigates the problem of base station relocation with respect to when to relocate, where to relocate and how to relocate. These approaches are validated through simulation. Our results show that the proposed measures not only safeguard base station but also increases the lifetime of the WSN due to uniform energy depletion of sensor nodes.
Star Clusters with Primordial Binaries: I. Dynamical Evolution of Isolated Models
Creators: name: Heggie, D. C.
name: Trenti, M.
name: Hut, P.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In order to interpret the results of complex realistic star cluster simulations, which rely on many simplifying approximations and assumptions, it is essential to study the behavior of even more idealized models, which can highlight the essential physical effects and are amenable to more exact methods. With this aim, we present the results of N-body calculations of the evolution of equal-mass models, starting with primordial binary fractions of 0 - 100 %, with values of N ranging from 256 to 16384. This allows us to extrapolate the main features of the evolution to systems comparable in particle number with globular clusters. In this range, we find that the steady-state `deuterium main sequence' is characterized by a ratio of the core radius to half-mass radius that follows qualitatively the analytical estimate by Vesperini & Chernoff (1994), although the N dependence is steeper than expected. Interestingly, for an initial binary fraction f greater than 10%, the binary heating in the core during the post collapse phase almost saturates (becoming nearly independent of f), and so little variation in the structural properties is observed. Thus, although we observe a significantly lower binary abundance in the core with respect to the Fokker-Planck simulations by Gao et al. (1991), this is of little dynamical consequence. At variance with the study of Gao et al. (1991), we see no sign of gravothermal oscillations before 150 halfmass relaxation times. At later times, however, oscillations become prominent. We demonstrate the gravothermal nature of these oscillations.
description: 14 pages, 22 figures, MNRAS accepted
SIGMA-EST and Data submission - operative manual
Creators: name: Istituto Zooprofilattico Sperimentale dell'Abruzzo e del Molise Giuseppe Caporale
name: European Food Safety Authority
name: SIGMA Consortium
Publisher: name: Zenodo
Year: 2023
Subjects: SIGMA-EST tool
Data mapping
Animal population data model
African Swine Fever
SSD2 laboratory data model

description: This document is a manual for the users of the SIGMA-EST tool. You can access it via this link.

This set of instructions will guide you through the steps of mapping the content of your national database to the EFSA SIGMA data model components.
description: EU; pdf; zoonoses_support@efsa.europa.eu
Barbero-Immirzi connections and how to build them
Creators: name: Orizzonte, Andrea
name: Fatibene, Lorenzo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Differential Geometry (math.DG)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We introduce a covariant formulation of Barbero-Immirzi connections, which are used in Loop Quantum Gravity to describe gravity. We show that Barbero-Immirzi connections can be uniquely defined out of a given spin connection for any $(n+1)$-dimensional lorentzian manifold which is spin. A remarkable result is that the presence of a real Barbero-Immirzi parameter is a feature unique to the $4$-dimensional case.
description: 13 pages
Quasiparticles, coherence and nonlinearity: exact simulations of RF-spectroscopy of strongly interacting one-dimensional Fermi gases
Creators: name: Leskinen, M. J.
name: Apaja, V.
name: Kajala, J.
name: Torma, P.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We consider RF-spectroscopy of ultracold Fermi gases by exact simulations of the many-body state and the coherent dynamics in one dimension. Deviations from the linear response sum rule result are found to suppress the pairing contribution to the RF line shifts. We compare the coherent rotation and quasiparticle descriptions of RF-spectroscopy which are analogous to NMR experiments in superfluid $^3$He and tunneling in solids, respectively. We suggest that RF-spectroscopy in ultracold gases provides an interesting crossover between these descriptions that could be used for studying decoherence in quantum measurement, in the context of many-body quantum states.
description: Journal version
Multi-Sensor Data Fusion for Cloud Removal in Global and All-Season Sentinel-2 Imagery
Creators: name: Ebel, Patrick
name: Meraner, Andrea
name: Schmitt, Michael
name: Zhu, Xiaoxiang
Publisher: name: arXiv
Year: 2020
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: This work has been accepted by IEEE TGRS for publication. The majority of optical observations acquired via spaceborne earth imagery are affected by clouds. While there is numerous prior work on reconstructing cloud-covered information, previous studies are oftentimes confined to narrowly-defined regions of interest, raising the question of whether an approach can generalize to a diverse set of observations acquired at variable cloud coverage or in different regions and seasons. We target the challenge of generalization by curating a large novel data set for training new cloud removal approaches and evaluate on two recently proposed performance metrics of image quality and diversity. Our data set is the first publically available to contain a global sample of co-registered radar and optical observations, cloudy as well as cloud-free. Based on the observation that cloud coverage varies widely between clear skies and absolute coverage, we propose a novel model that can deal with either extremes and evaluate its performance on our proposed data set. Finally, we demonstrate the superiority of training models on real over synthetic data, underlining the need for a carefully curated data set of real observations. To facilitate future research, our data set is made available online
description: This work has been accepted by IEEE TGRS for publication
Brachytrupes acuminipennis Simeu-Noutchom & Heller & Nyobe & Kekeunou 2023, stat. rev.
Creators: name: Simeu-Noutchom, Alain
name: Heller, Klaus-Gerhard
name: Nyobe, Philene Corinne Aude Um
name: Kekeunou, Sevilor
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Orthoptera
Gryllidae
Brachytrupes
Brachytrupes acuminipennis

description: Species Brachytrupes acuminipennis (Fairmaire, 1858) stat. rev. (Table 4)
Gryllus acuminipennis Fairmaire, 1858: p. 257
Type material: unspecified; central Africa, Gabon.
Description (Fairmaire 1858) Reddish, with a brown tint on the front of the head, the top and sides of the prothorax, lighter on the tegmina; hind femur thighs with short brown hatching, forming a longitudinal band above the middle, a brown spot before the end. Antennae longer than the body, reaching the end of the tegmina; forehead having, between the antennae, a slight impression with raised edges. Widely sinuate prothorax in the middle of the anterior border, on the disc a wide furrowed impression in the middle. Tegmina fairly long, acuminate, with strong veins. The four forelegs rather short and fairly robust, finely hairy; large and very robust hind femora, thigh much longer than tibia, very thick, sharp and somewhat leafy below; tibia armed, outside, with a double row of spins, and at the extremity with four very strong mobile spurs; first segment of hind tarsi almost twice as long as third, spiny above; the second almost hidden, very small; abdominal appendices half as long as the abdomen.
Distribution: Gabon
description: Published as part of Simeu-Noutchom, Alain, Heller, Klaus-Gerhard, Nyobe, Philene Corinne Aude Um & Kekeunou, Sevilor, 2023, Taxonomy review of the genus Brachytrupes (Orthoptera: Gryllidae) with the description of a new species and key to the species, pp. 373-388 in Zootaxa 5336 (3) on pages 381-382, DOI: 10.11646/zootaxa.5336.3.4, http://zenodo.org/record/8281577
TEACHER AS FACILITATOR – THE CHANGING ROLE OF THE TEACHER AND ITS IMPACT ON LEARNER AUTONOMY
Creators: name: Bakhriddinov, Makhamadali
Publisher: name: Zenodo
Year: 2024

description: This thesis explores the evolving role of the teacher as a facilitator in a student-centered B1 language classroom, focusing on how this shift impacts learner autonomy. It examines the traditional versus modern roles of educators, highlighting the pedagogical transformation required to foster an autonomous learning environment. Techniques such as scaffolding, individualized feedback, and facilitating peer interactions are discussed to illustrate how teachers can create a supportive atmosphere conducive to learner-centered education. The research argues that by empowering students and stepping into the role of facilitators, teachers can effectively promote learner independence, engagement, and competence development.
New Integrable Sectors in Skyrme and 4-dimensional CP^n Model
Creators: name: Adam, C.
name: Sanchez-Guillen, J.
name: Wereszczynski, A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The application of a weak integrability concept to the Skyrme and $CP^n$ models in 4 dimensions is investigated. A new integrable subsystem of the Skyrme model, allowing also for non-holomorphic solutions, is derived. This procedure can be applied to the massive Skyrme model, as well. Moreover, an example of a family of chiral Lagrangians providing exact, finite energy Skyrme-like solitons with arbitrary value of the topological charge, is given. In the case of $CP^n$ models a tower of integrable subsystems is obtained. In particular, in (2+1) dimensions a one-to-one correspondence between the standard integrable submodel and the BPS sector is proved. Additionally, it is shown that weak integrable submodels allow also for non-BPS solutions. Geometric as well as algebraic interpretations of the integrability conditions are also given.
description: 23 pages
A description of practising Christians’ experience of profound sexual and spiritual encounters
Creators: name: MacKnee, Chuck M
Publisher: name: University of British Columbia
Year: 2009

description: This qualitative study explored the meaning and description of profound sexual and spiritual connection among practising Christians. Investigations of the conditions and events that led to these peak encounters as well as the aftereffects of such experiences were also conducted. It was purposed that this research would enhance understanding of sexual and spiritual connection, inform theories of love, transpersonal experience, and Christian theology regarding sexuality, as well as provide counsellors with some initial strategies to promote more holistic sexual intimacy among their Christian clientele. The methods of inquiry and data analysis were based on a phenomenological approach. The researcher conducted an in-depth interview with five men and five women, representing five Christian denominations, who had experienced a profound event that was simultaneously sexual and spiritual. The statements within each participant's transcript were analyzed to discover clusters of meaningful themes. A follow-up interview with each contributor validated these individual or "situated structural" descriptions. Twenty-five common themes emerged from the interview data and a fundamental structure or "common story" was culled from the exhaustive description of the phenomenon. The themes of the sexual and spiritual encounter were categorized into the into the following three phases: Preconditions and Facilitating Events; Descriptive Themes of the Encounter; and Aftereffects. The exhaustive description and fundamental structure were validated by all the participants in a final follow-up consultation. The study results offered an empirical and experiential basis for previous conjectures on linking sexuality and spirituality. The findings were interpreted in light of existing research on love, transpersonal mystical experience, and Christian theology on sexuality. Comparisons were made to the experience of transcendental sex experienced by Tantric practitioners. Potentials for individual and relational growth were explored. Following these interpretations, a number of specific recommendations were made for future research and counselling practice.
Role of spatial patterns in fracture of disordered multiphase materials
Creators: name: Parihar, Rajat Pratap Singh
name: Mani, Dhiwakar V.
name: Banerjee, Anuradha
name: Rajesh, R.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Multi-phase materials, such as composite materials, exhibit multiple competing failure mechanisms during the growth of a macroscopic defect. For the simulation of the overall fracture process in such materials, we develop a two-phase spring network model that accounts for the architecture between the different components as well as the respective disorders in their failure characteristics. In the specific case of a plain weave architecture, we show that any offset between the layers reduces the delocalization of the stresses at the crack tip and thereby substantially lowers the strength and fracture toughness of the overall laminate. The avalanche statistics of the broken springs do not show a distinguishable dependence on the offsets between layers. The power law exponents are found to be much smaller than that of disordered spring network models in the absence of a crack. A discussion is developed on the possibility of the avalanche statistics being those near breakdown.
description: 13 pages, 22 figures
Factors Influencing Registered Nurses' Choice of Graduate Program Concentration and Career Intent
Creators: name: DeMarco, Mary Kay
Publisher: name: Maryland Shared Open Access Repository
Year: 2014
Subjects: Academic Salary
Faculty Shortage
Graduate Education
Nursing Entry Level
Nursing Faculty
Nursing Workforce

description: The shortage of nursing faculty in pre-licensure registered nursing education programs is a problem that could affect the United States health care system.  A lack of qualified nursing faculty will limit the number of students accepted into nursing programs and the number of registered nurses produced for the workforce.  Research investigating reasons why nurses enter faculty positions is limited.  This study examined the effects of external factors on the decision of registered nurses seeking graduate education to choose nursing education as a major or teaching as a career path.  Relationships between perceived employment opportunities, faculty salaries, prestige of faculty role, opinions about pre-licensure nursing education, and the choice of graduate concentration and academic career goal were investigated.  Analysis models were based on current literature and Krumboltz's Social Learning Theory of Career Decision Making, which states that career decisions are based on multiple influential factors and interactions.   A non-experimental research design with a 43 item survey tool developed by the investigator was used for data collection.  The tool was administered to 218 graduate students in five university nursing programs in Maryland. The response rate was 88%.  Correlation and regression analysis revealed significant relationships (p < .05) between intent to pursue an education major and academic career, and several influential factors.  The odds of majoring in nursing education were lower for students who considered employment opportunities important (OR= .60) and for students with the opinion that the bachelor's degree should be the entry-level education for registered nurses (OR = .68). Black nursing graduate students had higher odds than non-white students of choosing a concentration in nursing education (OR= 4.55).  Findings also indicated that students who considered faculty salary a consideration in employment   (OR =1.50), married students (OR=3.25), and students with at least one child under age 18 (OR = 1.57) had higher odds of expressing intent to teach.  These results indicate that faculty salary is not the only variable in nursing graduate education and career decisions.  More research is needed to better understand associations between nurses' opinions on entry level education and other factors related to the nursing faculty shortage.
Optical Lattice Polarization Effects on Hyperpolarizability of Atomic Clock Transitions
Creators: name: Taichenachev, A. V.
name: Yudin, V. I.
name: Ovsiannikov, V. D.
name: Pal'chikov, V. G.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The light-induced frequency shift due to the hyperpolarizability (i.e. terms of second-order in intensity) is studied for a forbidden optical transition, $J$=0$\to$$J$=0. A simple universal dependence on the field ellipticity is obtained. This result allows minimization of the second-order light shift with respect to the field polarization for optical lattices operating at a magic wavelength (at which the first-order shift vanishes). We show the possibility for the existence of a magic elliptical polarization, for which the second-order frequency shift vanishes. The optimal polarization of the lattice field can be either linear, circular or magic elliptical. The obtained results could improve the accuracy of lattice-based atomic clocks.
description: 4 pages, RevTeX4, 2 eps figs
Star Clusters with Primordial Binaries: II. Dynamical Evolution of Models in a Tidal Field
Creators: name: Trenti, M.
name: Heggie, D. C.
name: Hut, P.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: [abridged] We extend our analysis of the dynamical evolution of simple star cluster models, in order to provide comparison standards that will aid in interpreting the results of more complex realistic simulations. We augment our previous primordial-binary simulations by introducing a tidal field, and starting with King models of different central concentrations. We present the results of N-body calculations of the evolution of equal-mass models, starting with primordial binary fractions of 0 - 100 %, and N values from 512 to 16384. We also attempt to extrapolate some of our results to the larger number of particles that are necessary to model globular clusters. We characterize the steady-state `deuterium main sequence' phase in which primordial binaries are depleted in the core in the process of `gravitationally burning'. In this phase we find that the ratio of the core to half-mass radius, r_c/r_h, is similar to that measured for isolated systems. In addition to the generation of energy due to hardening and depletion of the primordial binary population, the overall evolution of the star clusters is driven by a competing process: the tidal disruption of the system. We find that the depletion of primordial binaries before tidal dissolution of the system is possible only if the initial number is below 0.05 N, in the case of a King model with W_0=7 and N=4096 (which is one of our longest living models). We compare our findings, obtained by means of direct N-body simulations but scaled, where possible, to larger N, with similar studies carried out by means of Monte Carlo methods.
description: 15 pages, 18 figures, matches MNRAS accepted version, some sections reorganized but no major changes
Evaluating the effectiveness of a nursing care clinic model in the ambulatory setting
Creators: name: Greene, Jamie
Publisher: name: Maryland Shared Open Access Repository
Year: 2014
Subjects: subject: Ambulatory
subject: Diabetes
subject: Nursing
subject: FOS: Health sciences
subject: Nursing care clinics

description: The current research considered the effectiveness of ambulatory nursing care clinics (NCCs) in managing patients 65 years and older with diabetes mellitus. In this quasi-experimental design, patients with diabetes in ten facilities received care management in nursing care clinics. Patients in the comparison group received standard physician-based care in the remaining 24 facilities. The hypotheses were that the patients in nursing care clinics would have lower physiologic measures, lower utilization rates, and higher rates of preventive screening than patients in the comparison group.  Analysis for the utilization and physiologic measures was conducted using a difference-in-differences design with ordinary least squares regression including adjustments for serial correlation, intraclass correlation, and individual fixed effects. Survival analysis was used to analyze mortality and disenrollment rates. Although some statistically significant estimated effects of the NCCs on the outcome measures were observed, the estimated effects were small and not clinically meaningful. The conclusion was that the NCCs do not impact utilization, physiologic, and process measures related to diabetes management.  The study was limited by the three-year study period, the length of the time the clinics had been operational. Additional time may be necessary to see significant changes in physiologic and utilization measures as indicators of effective disease management in nursing care clinics. Although this study was focused on clinical quality measures, additional measures of success may be the cost-benefit of nursing care clinics, patient satisfaction, and staff satisfaction. The policy implication of the study is that national entities should support further research into the effectiveness of ambulatory nursing care models through a variety of funding opportunities. State entities can explore ambulatory scope of practice regulatory standardization and the impacts of such changes on healthcare quality measures.
Abundance of cavity-free polaritonic states in resonant materials and nanostructures
Creators: name: Canales, Adriana
name: Baranov, Denis G.
name: Antosiewicz, Tomasz J.
name: Shegai, Timur
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Strong coupling between various kinds of material excitations and optical modes has recently shown potential to modify chemical reaction rates in both excited and ground states. The ground-state modification in chemical reaction rates has usually been reported by coupling a vibrational mode of an organic molecule to the vacuum field of an external optical cavity, such as a planar Fabry-Pérot microcavity made of two metallic mirrors. However, using an external cavity to form polaritonic states might: (i) limit the scope of possible applications of such systems, and (ii) be unnecessary. Here we highlight the possibility of using optical modes sustained by materials themselves to self-couple to their own electronic or vibrational resonances. By tracing the roots of the corresponding dispersion relations in the complex frequency plane, we show that electronic and vibrational polaritons are natural eigenstates of bulk and nanostructured resonant materials that require no external cavity. Several concrete examples, such as a slab of excitonic material and a spherical water droplet in vacuum are shown to reach the regime of such cavity-free self-strong coupling. The abundance of cavity-free polaritons in simple and natural structures questions their relevance and potential practical importance for the emerging field of polaritonic chemistry, exciton transport, and modified material properties.
description: 14 pages, 6 figures
Abundant dust found in intergalactic space
Creators: name: Xilouris, E.
name: Alton, P.
name: Alikakos, J.
name: Xilouris, K.
name: Boumis, P.
name: Goudis, C.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Galactic dust constitutes approximately half of the elements more massive than helium produced in stellar nucleosynthesis. Notwithstanding the formation of dust grains in the dense, cool atmospheres of late-type stars, there still remain huge uncertainties concerning the origin and fate of galactic stardust. In this paper, we identify the intergalactic medium (i.e. the region between gravitationally-bound galaxies) as a major sink for galactic dust. We discover a systematic shift in the colour of background galaxies viewed through the intergalactic medium of the nearby M81 group. This reddening coincides with atomic, neutral gas previously detected between the group members. The dust-to-HI mass ratio is high (1/20) compared to that of the solar neighborhood (1/120) suggesting that the dust originates from the centre of one or more of the galaxies in the group. Indeed, M82, which is known to be ejecting dust and gas in a starburst-driven superwind, is cited as the probable main source.
description: 5 pages, 3 figures, 1 table. ApJ Letters in press
Learning Classifiers from Simulated Satellite Data and Applications to Environmental Monitoring
Creators: name: Bhalerao, Shridhar G.
Publisher: name: Maryland Shared Open Access Repository
Year: 2013
Subjects: CRTM
Decison Trees
Regression Trees
Simulated Satellite Data

description: Remote Sensing applications have gained a lot of attention in recent years due to their cost effectiveness over applications involving in-situ observations. We conduct experiments using the Community Radiative Transfer Model(CRTM) a widely used library for satellite observations to observe and detect high temperature points and concentrations of aerosols such as PM2.5 for a given region. The CRTM is a simulation library which requires atmosphere and surface data in the form of gridded profiles and solves the radiative transfer problem in clear or scattered atmosphere. The observations/radiances of CRTM assume microwave and infrared sensor. The observations/radiances by the sensor are in the form of channel brightness temperatures or radiances at multiple wavelengths. We simulate the atmosphere and surface conditions using the real whether data. The CRTM performs a forward operation and calculates a vector of channel brightness temperature for the given atmophere and surface conditions. We use the channel brightness data to build models to detect high temperature points and estimate the concentration of  PM2.5 using classification and regression trees respectively. We test the models for different time periods and regions. The aim of the research is to create an observation operator using the CRTM which can be used where observations of satellite are required to evalute predictions made by some other simulation models.
Discovery of HC4NC in TMC-1: A study of the isomers of HC3N, HC5N, and HC7N
Creators: name: Cernicharo, J.
name: Marcelino, N.
name: Agundez, M.
name: Bermudez, C.
name: Cabezas, C.
name: Tercero, B.
name: Pardo, J. R.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present a study of the isocyano isomers of the cyanopolyynes HC3N, HC5N, and HC7N in TMC-1 and IRC+10216 carried out with the Yebes 40m radio telescope. This study has enabled us to report the detection, for the first time in space, of HCCCCNC in TMC-1 and to give upper limits for HC6NC in the same source. In addition, the deuterated isotopologues of HCCNC and HNCCC were detected, along with all 13C substitutions of HCCNC, also for the first time in space. The abundance ratios of HC3N and HC5N, with their isomers, are very different in TMC-1 and IRC+10216, namely, N(HC5N)/N(HC4NC) is 300 and >2100, respectively. We discuss the chemistry of the metastable isomers of cyanopolyynes in terms of the most likely formation pathways and by comparing observational abundance ratios between different sources.
description: This article was submitted to A&A on 27/08/2020 and accepted for publication on 11/09/2020
Initial Reports of the Deep Sea Drilling Project - Volume 90
Creators: name: Kennett, J.P.
name: von der Borch, C.C.
name: The Leg 90 Science Party
Publisher: name: U.S. Government Printing Office
Year: 1986
Subjects: Deep Sea Drilling Project
Glomar Challenger
DSDP
Leg 90
Site 587
Site 588
Site 589
Site 590
Site 591
Site 592
Site 593
Site 594
Southwest Pacific Ocean
Lord Howe Rise
Western Equatorial Pacific
Lansdowne Bank
Challenger Plateau
Chatham Rise

description: This volume covers Leg 90 of the cruises of the Drilling Vessel Glomar Challenger. DSDP Leg 90 successfully obtained a traverse of high-quality middle to upper Cenozoic cores between equatorial and northern subantarctic water masses in the southwest Pacific. Leg 90 is one of several DSDP legs that were set up to complement each other for global paleoceanographic investigations. Others are Leg 68, Legs 72-76, Leg 85 and Leg 87. All were aimed at greater understanding of global paleoceanographic change and thus required continuous sequences exhibiting relatively high sedimentation rates. Seven main sites and one minor site were cored during Leg 90. A ninth site (Site 586) was drilled at the northern extremity of this same traverse during Leg 89. The nine sites are placed along a latitudinal transect to obtain paleoceanographic records for a number of distinct water masses and to maximize our ability to make correlations across the wide latitudes between equatorial and subpolar regions. Scientific investigations planned for Leg 90 materials include the following: 1. High-resolution Neogene biostratigraphy. 2. Latest Paleogene through Neogene paleoclimatic history and surface-water fluctuations in the region using stable isotopes and microfossils. 3. Cross-latitudinal biostratigraphic correlations between sites. 4. Paleobiogeographic change of planktonic foraminifera and other microfossils in relation to paleoceanographic fluctuations and to the northward movement of the Lord Howe Rise during the Neogene. 5. Magnetostratigraphy of the cored sequences to enhance correlation and provide a geochronology. 6. Evolutionary studies of planktonic foraminifera to assist in evaluating different possible processes of evolution, such as punctuated equilibrium versus gradualism. 7. Benthic foraminiferal assemblage changes at these relatively shallow depths during the late Paleogene and Neogene to study paleobiogeography, taxonomic evolution, and the history of vertical water mass changes at intermediate depths in the southwest Pacific. 8. Stable isotopic studies of vertical water mass structure. 9. History of eolian sedimentation related to the development of Australian dry climates and deserts. 10. Physical properties of sediments, including relations with seismic data. 11. Tephrochronology using volcanic ash layers. Leg 90 began in Noumea, New Caledonia in December of 1982 and ended in Wellington, New Zealand in January of 1983.
Predictions of bond percolation thresholds for the kagomé and Archimedean $(3,12^2)$ lattices
Creators: name: Scullard, Christian R.
name: Ziff, Robert M.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: Here we show how the recent exact determination of the bond percolation threshold for the martini lattice can be used to provide approximations to the unsolved kagomé and (3,12^2) lattices. We present two different methods, one of which provides an approximation to the inhomogeneous kagomé and (3,12^2) bond problems, and the other gives estimates of $p_c$ for the homogeneous kagomé (0.5244088...) and (3,12^2) (0.7404212...) problems that respectively agree with numerical results to five and six significant figures.
description: 4 pages, 5 figures
SIGMA-EST and Data submission operative manual
Creators: name: Istituto Zooprofilattico Sperimentale Dell'Abruzzo E Del Molise Giuseppe Caporale
name: European Food Safety Authority
name: SIGMA Consortium
Publisher: name: Zenodo
Year: 2022
Subjects: subject: SIGMA-EST tool
subject: Data mapping
subject: Animal population data model
subject: African Swine Fever
subject: SSD2 laboratory data model
subject: http://id.agrisemantics.org/gacs/C2724
subject: http://id.agrisemantics.org/gacs/C15
subject: http://id.agrisemantics.org/gacs/C5059

description: This document is a manual for the users of the SIGMA-EST tool. You can access it via this link. This set of instructions will guide you through the steps of mapping the content of your national database to the EFSA SIGMA data model components.
description: EU; pdf; zoonoses_support@efsa.europa.eu