cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Continuous Limit of Discrete Quantum Walks
Creators: name: N, Dheeraj M
name: Brun, Todd A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum walks can be defined in two quite distinct ways: discrete-time and continuous-time quantum walks (DTQWs and CTQWs). For classical random walks, there is a natural sense in which continuous-time walks are a limit of discrete-time walks. Quantum mechanically, in the discrete-time case, an additional "coin space" must be appended for the walk to have nontrivial time evolution. Continuous-time quantum walks, however, have no such constraints. This means that there is no completely straightforward way to treat a CTQW as a limit of DTQW, as can be done in the classical case. Various approaches to this problem have been taken in the past. We give a construction for walks on $d$-regular, $d$-colorable graphs when the coin flip operator is Hermitian: from a standard DTQW we construct a family of discrete-time walks with a well-defined continuous-time limit on a related graph. One can think of this limit as a {\it coined} continuous-time walk. We show that these CTQWs share some properties with coined DTQWs. In particular, we look at spatial search by a DTQW over the 2-D torus (a grid with periodic boundary conditions) of size $\sqrt{N}\times\sqrt{N}$, where it was shown \nocite{AAmbainis08} that a coined DTQW can search in time $O(\sqrt{N}\log{N})$, but a standard CTQW \nocite{Childs2004} takes $Ω(N)$ time to search for a marked element. The continuous limit of the DTQW search over the 2-D torus exhibits the $O(\sqrt{N}\log{N})$ scaling, like the coined walk it is derived from. We also look at the effects of graph symmetry on the limiting walk, and show that the properties are similar to those of the DTQW as shown in \cite{HariKrovi2007}.
description: 7 pages, RevTeX format
Moriones, I., Ana de Jesus y la Herencia Teresíana e Humanismo cristiano, o rigor primitivo?. Edizioni del Teresianum. Vol, de XXI+530 ps. 160x240. Roma 1968
Creators: name: Arieiro, José
Publisher: name: Theologica
Year: 1969

description: Theologica, v. 4 n. 1 (1969)
Galois Representations of Abelian Varieties
Creators: name: Mayle, Jacob Joseph
Publisher: name: University of Illinois at Chicago
Year: 2022
Subjects: Uncategorized

description: The main topic of this thesis is Galois representations of abelian varieties. Following the introduction, there are four largely independent chapters that each make progress around the main topic. Chapter 2 gives an explicit bound (conditional on the generalized Riemann hypothesis and in terms of the conductor) on the largest prime number ell for which the mod ell Galois representation of an elliptic curve over Q without complex multiplication is non-surjective (joint with Tian Wang). Chapter 3 applies Galois representations of elliptic curves to study rigidity in two well-known local-global principles. Chapter 4 considers principally polarized abelian varieties of arbitrary dimension whose adelic Galois image is open in the appropriate profinite group, giving a bound (in terms of standard invariants of the abelian variety) on the level at which the adelic Galois image is defined. Chapter 5 is a brief computational note on determining whether a given elliptic curve over Q is a Serre curve.
Environmental Injustice in North Carolina's Hog Industry
Creators: name: Cole, Dana
name: Grant, Gary
name: Wing, Steve
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2000

description: Rapid growth and the concentration of hog production in North Carolina have raised concerns of a disproportionate impact of pollution and offensive odors on poor and nonwhite communities. We analyzed the location and characteristics of 2,514 intensive hog operations in relation to racial, economic, and water source characteristics of census block groups, neighborhoods with an average of approximately 500 households each. We used Poisson regression to evaluate the extent to which relationships between environmental justice variables and the number of hog operations persisted after consideration of population density. There are 18.9 times as many hog operations in the highest quintile of poverty as compared to the lowest; however, adjustment for population density reduces the excess to 7.2. Hog operations are approximately 5 times as common in the highest three quintiles of the percentage nonwhite population as compared to the lowest, adjusted for population density. The excess of hog operations is greatest in areas with both high poverty and high percentage nonwhites. Operations run by corporate integrators are more concentrated in poor and nonwhite areas than are operations run by independent growers. Most hog operations, which use waste pits that can contaminate groundwater, are located in areas with high dependence on well water for drinking. Disproportionate impacts of intensive hog production on people of color and on the poor may impede improvements in economic and environmental conditions that are needed to address public health in areas which have high disease rates and low access to medical care as compared to other areas of the state.ImagesFigure 1Figure 2Figure 3Figure 4Figure 5Figure 6
Fast Bayesian Inference for Exoplanet Discovery in Radial Velocity Data
Creators: name: Brewer, Brendon J.
name: Donovan, Courtney P.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Applications (stat.AP)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Inferring the number of planets $N$ in an exoplanetary system from radial velocity (RV) data is a challenging task. Recently, it has become clear that RV data can contain periodic signals due to stellar activity, which can be difficult to distinguish from planetary signals. However, even doing the inference under a given set of simplifying assumptions (e.g. no stellar activity) can be difficult. It is common for the posterior distribution for the planet parameters, such as orbital periods, to be multimodal and to have other awkward features. In addition, when $N$ is unknown, the marginal likelihood (or evidence) as a function of $N$ is required. Rather than doing separate runs with different trial values of $N$, we propose an alternative approach using a trans-dimensional Markov Chain Monte Carlo method within Nested Sampling. The posterior distribution for $N$ can be obtained with a single run. We apply the method to $ν$ Oph and Gliese 581, finding moderate evidence for additional signals in $ν$ Oph with periods of 36.11 $\pm$ 0.034 days, 75.58 $\pm$ 0.80 days, and 1709 $\pm$ 183 days; the posterior probability that at least one of these exists is 85%. The results also suggest Gliese 581 hosts many (7-15) "planets" (or other causes of other periodic signals), but only 4-6 have well determined periods. The analysis of both of these datasets shows phase transitions exist which are difficult to negotiate without Nested Sampling.
description: Accepted for publication in MNRAS. 9 pages, 12 figures. Code at http://www.github.com/eggplantbren/Exoplanet
Fernandez, P. Domitianus, De Mariologia Sancti Epiphanii. Ed. Pontifícia Academia Mariana Intemationalis. Vol. de XXVIIII+288 ps. 170x240. Roma 1968
Creators: name: Correia, Francisco Carvalho
Publisher: name: Theologica
Year: 1969

description: Theologica, v. 4 n. 1 (1969)
TIMETABLE OF EU NEGOTIATIONS & POLICY DEVELOPMENTS: AN OVERVIEW OF THE RURAL POLICY FRAMEWORK POST-2020 2023 UPDATE
Creators: name: Pagnon,, J
name: Springer, K
name: Hiller, N
name: Bradley, H
name: Féret, S
Publisher: name: Zenodo
Year: 2023

description: This paper presents the latest developments regarding European Union (EU) policies that impact rural areas. It is an update of a paper written in 2020 for the SHERPA project, which provided an overview of EU rural policies from 2021 to 2027 (hereafter "the Overview"). The goal is to update the various stakeholders involved in the SHERPA Multi-Actor Platforms (MAPs) on relevant EU policy developments and identify new opportunities both for contributing to EU-level discussions and national implementation. The first two present overarching political strategies and the policies within them that impact EU rural areas: the Long-Term Vision for Rural Areas and the European Green Deal, including its Farm to Fork and Biodiversity Strategies. The subsequent sections present the EU's budget and different funding instruments within it that are most relevant for rural areas: the Common Agricultural Policy, Cohesion policy and Horizon Europe.
Examination of Student Understanding in an Acid-Base Titration Lab
Creators: name: Zhang, Hongyang
Publisher: name: University of Illinois at Chicago
Year: 2022
Subjects: Uncategorized

description: This study uses two different approaches to examining student outcomes and understanding in the context of aspects of acid-base chemistry. It introduces the use of evidence centered assessment design as a design framework of a multi-dimensional acid-base titration laboratory and as an analysis tool of student performances in a lab setting and in student interviews about the lab. The interview data was also examined to characterize student knowledge about the content of weak acid or base dissociation and the underlying core idea of equilibrium was explored by knowledge analysis.
PARALINGUISTICS: EXPLORING THE MULTIFACETED DIMENSIONS OF NONVERBAL COMMUNICATION
Creators: name: Melikuziev, Azimjon
Publisher: name: Zenodo
Year: 2023

description: Paralinguistics refers to the study of nonverbal cues and vocal features that accompany spoken language, providing essential insights into communication dynamics beyond the words themselves. This scientific article explores the multifaceted dimensions of paralinguistics, shedding light on its key components, functions, and implications for interpersonal interactions. Through an interdisciplinary lens, we delve into the intricate interplay between paralinguistic cues, emotions, cultural factors, and cognitive processes. By understanding the rich tapestry of paralinguistics, we can enhance our comprehension of human communication and foster effective and empathetic connections in various contexts.
Intensive Livestock Operations, Health, and Quality of Life among Eastern North Carolina Residents
Creators: name: Wing, Steve
name: Wolf, Susanne
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2000

description: People who live near industrial swine operations have reported decreased health and quality of life. To investigate these issues, we surveyed residents of three rural communities, one in the vicinity of an approximately 6,000-head hog operation, one in the vicinity of two intensive cattle operations, and a third rural agricultural area without livestock operations that use liquid waste management systems. Trained interviewers obtained information about health symptoms and reduced quality of life during the previous 6 months. We completed 155 interviews, with a refusal rate of 14%. Community differences in the mean number of episodes were compared with adjustment for age, sex, smoking, and employment status. The average number of episodes of many symptoms was similar in the three communities; however, certain respiratory and gastrointestinal problems and mucous membrane irritation were elevated among residents in the vicinity of the hog operation. Residents in the vicinity of the hog operation reported increased occurrences of headaches, runny nose, sore throat, excessive coughing, diarrhea, and burning eyes as compared to residents of the community with no intensive livestock operations. Quality of life, as indicated by the number of times residents could not open their windows or go outside even in nice weather, was similar in the control and the community in the vicinity of the cattle operation but greatly reduced among residents near the hog operation. Respiratory and mucous membrane effects were consistent with the results of studies of occupational exposures among swine confinement-house workers and previous findings for neighbors of intensive swine operations. Long-term physical and mental health impacts could not be investigated in this study.
Properties of an affine transport equation and its holonomy
Creators: name: Vines, Justin
name: Nichols, David A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: An affine transport equation was used recently to study properties of angular momentum and gravitational-wave memory effects in general relativity. In this paper, we investigate local properties of this transport equation in greater detail. Associated with this transport equation is a map between the tangent spaces at two points on a curve. This map consists of a homogeneous (linear) part given by the parallel transport map along the curve plus an inhomogeneous part, which is related to the development of a curve in a manifold into an affine tangent space. For closed curves, the affine transport equation defines a "generalized holonomy" that takes the form of an affine map on the tangent space. We explore the local properties of this generalized holonomy by using covariant bitensor methods to compute the generalized holonomy around geodesic polygon loops. We focus on triangles and "parallelogramoids" with sides formed from geodesic segments. For small loops, we recover the well-known result for the leading-order linear holonomy ($\sim$ Riemann $\times$ area), and we derive the leading-order inhomogeneous part of the generalized holonomy ($\sim$ Riemann $\times$ area$^{3/2}$). Our bitensor methods let us naturally compute higher-order corrections to these leading results. These corrections reveal the form of the finite-size effects that enter into the holonomy for larger loops; they could also provide quantitative errors on the leading-order results for finite loops.
description: 18 pages, 4 figures, new short section (Sec. 5) in v3; updated to match article published in GRG
Advancements in Characterization of Cartilaginous Endplates using Magnetic Resonance Imaging
Creators: name: Marciante, Mara
Publisher: name: University of Illinois at Chicago
Year: 2022
Subjects: Uncategorized

description: The critical role of the cartilaginous endplate (CEP) in disc health and degeneration is becoming increasingly evident. CEP can influence the disc degeneration process impairing the disc’s nutrient transport and supply, and the disc function. Thus, a characterization method able to point out correlations between CEPs and disc degeneration is necessary. The objectives of this study were to quantify the 3D CEP thickness using 3D experimental ultrashort echo time (UTE) MRI sequences to investigate relationships between CEP thickness and disc level, Pffirmann grade, CEP anatomical zone and site, and to assess correlations between IVD and CEP thickness. To do so, four cadaveric lumbar spines with varying degrees of disc degeneration were scanned with three 3D UTE sequences - Echo1, Echo2, and high-resolution - in the sagittal plane, and Echo1 and Echo2 were then subtracted. Next, 3D CEP surface MRI-derived models were defined and the CEP shells (superior and inferior) were created. The CEP and IVD thicknesses were measured from the CEP shells, as point-plane distance, and CEP distribution maps based on anatomical quadrants were defined. The MRI-derived CEP thickness values were validated against standard histology measurements. From the results, the CEP distribution maps demonstrated a qualitative heterogeneity in thickness between specimens and disc levels. Statistical comparisons showed that CEP thickness influential factors were the disc level and Pfirrmann grade (p-value$\mathbf{<}$0.05), correlations between IVD and CEP thickness defined low negative trends for both cranial and caudal CEPs (cranial: Pearson’s coefficient=-0.22; caudal: Pearson’s coefficient=-0.34), while the comparison between histologic and MRI-based measurements of CEP thickness had a low positive correlation (Pearson’s coefficient=0.37). In conclusion, this study introduced an innovative method to quantify the 3D CEP thickness with distribution maps based on anatomical quadrants plus, although the low positive correlation with histology, the UTE-derived results suggested that the influential factors - disc level and Pfirrmann grade - and the low negative relationship between IVD and CEP thickness may serve as diagnostic markers for disc degeneration.
Zalba, M., La regulación de la natalidad. Texto bilingue de la encíclica. Humanae vitae y fuentes del Magistério. Ed. BAC. Vol. de 252 ps. 98x172. Madrid 1968
Creators: name: Ferraz, Agostinho Moreira
Publisher: name: Theologica
Year: 1969

description: Theologica, v. 4 n. 1 (1969)
A New Route To Tetra-Alkyltins And Some Novel Organostannate Complexes
Creators: name: Nicholson, John
Publisher: name: London South Bank University
Year: 1981

description: This thesis is concerned with two aspects of organotin chemistry, namely the synthesis of organotin - compounds directly from free tin, and the formation of the organotin complexes known as organostannates. Initially, methods of forming tin-carbon bonds in single stage syntheses are reviewed. Subsequently, a reaction is described in which tin is reacted with alkyl halide in the presence of zinc and molten tetraalkylammonium iodide to produce tetraalkyltin and zinc chloride. The tetraalkyltin may be extracted from the mixture in yields of up to 34% on tin taken. Results are given for reaction of a number of organic halides. Chlorobenzene, which was the only aryl halide investigated, failed to react, while a series of alkyl chlorides containing branched alkyl groups underwent reaction, but failed to yield tetraalkyltin, the alkyl groups being lost from the reaction mixture as free radical rearrangement products. Much work was done on the reaction of butyl chloride to produce tetrabutyltin, a system which is of potential industrial importance. From the results of these studies, a mechanism has been proposed for the reaction, In addition to the work on the direct synthesis reaction, the chemistry, properties and applications of organostannate complexes are reviewed, and subsequently, the synthesis of twenty-two tetraalkylammonium di- and tri organohalogenostannate (IV) complexes is reported. Nineteen of these were new compounds. The Mossbauer spectra of these complexes have been studied, and the following definite structural assignments made on the basis of them: The pentacoordinate complexes had trigonal bipyramidal geometries, with in the case of the triorganostannates, axial halogens and equatorial organic groups, and in the case of the diorganostannates, axial halogens, and equatorial sites occupied by two organic groups and one halogen. The only hexacoordinate complexes which could be synthesised were diphenyltetra halogenostannates, and they had octahedral structures with trans axial phenyl -groups.
Pair-Instability Supernovae of Fast Rotating Stars
Creators: name: Chen, Ke-Jung
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present 2D simulations of pair-instability supernovae considering rapid rotation during their explosion phases. Recent studies of the Pop III star formation suggested that these stars could be born with a mass scale about 100 Msun and with a strong rotation. Based on stellar evolution models, these massive Pop III stars might have died as highly energetic pair-instability supernovae. We perform 2D calculations to investigate the impact of rotation on pair-instability supernovae. Our results suggest that rotation leads to an aspherical explosion due to an anisotropic collapse. If the first stars have a 50% of keplerian rotational rate of the oxygen core before their pair-instability explosions, the overall Ni production can be significantly reduced by about two orders of magnitude. An extreme case of 100% keplerian rotational rate shows an interesting feature of fluid instabilities along the equatorial plane caused by non-synchronized and non-isotropic ignitions of explosions, so that the shocks run into the in-falling gas and generate the Richtmyer--Meshkov instability.
description: 11 pages, 5 figures
Falsini, L., Rinaldo, La preghiera eucarística. Comento al cânone delia Messa. Ed. Opera delia Regalità di N. S. Gesú Cristo. Società Editrice «Vita e Pensiero. Vol. de 136 ps. 120x170. Milano 1968
Creators: name: Santos, Alexandrino Fernandes Dos
Publisher: name: Theologica
Year: 1969

description: Theologica, v. 4 n. 1 (1969)
Susceptible Periods during Embryogenesis of the Heart and Endocrine Glands
Creators: name: Sadler, T.W
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2000

description: One of the original principles of teratology states that, "Susceptibility to teratogenesis varies with the developmental stage at the time of exposure to an adverse influence" [Wilson JG. Environment and Birth Defects. New York:Academic Press, 1973]. The time of greatest sensitivity encompasses the period of organ formation during weeks 3-8 following fertilization in human gestation. At this time, stem cell populations for each organ's morphogenesis are established and inductive events for the initiation of differentiation occur. Structural defects of the heart and endocrine system are no exception to this axiom and have their origins during this time frame. Although the function and maturation of these organs may be affected at later stages, structural defects and loss of cell types usually occur during these early phases of development. Thus, to determine critical windows for studying mechanisms of teratogenesis, it is essential to understand the developmental processes that establish these organs.ImagesFigure 1Figure 2Figure 3Figure 4Figure 5Figure 6Figure 7Figure 8Figure 9Figure 10Figure 11Figure 12
Alternate Day Fasting Combined with Exercise for the Treatment of Non-Alcoholic Fatty Liver Disease
Creators: name: Ezpeleta, Mark S
Publisher: name: University of Illinois at Chicago
Year: 2022
Subjects: Uncategorized

description: Innovative non-pharmacological lifestyle strategies to treat non-alcoholic fatty liver disease (NAFLD) are critically needed. This study compared the effects of alternate day fasting (ADF) combined with exercise, to fasting alone, and exercise alone, on intrahepatic triglyceride content (IHTG). Adults with NAFLD (n = 80) were randomized to 1 of 4 groups for 3 months: combination of ADF (600 kcal “fast day”; ad libitum intake “feast day”) and moderate-intensity aerobic exercise (5 session per week, 60 min/session); ADF alone; exercise alone; or a no-intervention control group. By month 3, IHTG was significantly reduced in the combination group (-5.48%; 95% CI, -7.77 to -3.18), compared to the exercise group (-1.30%; 95% CI, -3.80 to 1.20; P = 0.02) and the control group (-0.17%; 95% CI, -2.17 to 1.83; P < 0.01), but was not significantly different versus the ADF group (-2.25%; 95% CI, -4.46 to -0.04; P = 0.05). Body weight, fat mass, waist circumference, and ALT significantly decreased, while insulin sensitivity significantly increased, in the combination group compared to the control group. Changes in lean mass, AST, HbA1c, blood pressure, and plasma lipids remained unchanged. Combining intermittent fasting with exercise is effective for reducing hepatic steatosis in patients with NAFLD but may offer no additional benefit versus fasting alone. These results still require confirmation by a larger-scale randomized control trial.
Scheeben-Fuchs, Mistérios del cristianismo. Editorial Verbo Divino. 1 vol. de 352 ps. 190x120. Estella (Navarra) 1967
Creators: name: Santos, Alexandrino Fernandes Dos
Publisher: name: Theologica
Year: 1969

description: Theologica, v. 4 n. 1 (1969)
The Contribution of Benzene to Smoking-Induced Leukemia
Creators: name: Schulz, Mark R.
name: Korte, Jeffrey E.
name: Ball, Louise M.
name: Hertz-Picciotto, Irva
name: Duell, Eric J.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2000

description: Cigarette smoking is associated with an increased risk of leukemia; benzene, an established leukemogen, is present in cigarette smoke. By combining epidemiologic data on the health effects of smoking with risk assessment techniques for low-dose extrapolation, we assessed the proportion of smoking-induced total leukemia and acute myeloid leukemia (AML) attributable to the benzene in cigarette smoke. We fit both linear and quadratic models to data from two benzene-exposed occupational cohorts to estimate the leukemogenic potency of benzene. Using multiple-decrement life tables, we calculated lifetime risks of total leukemia and AML deaths for never, light, and heavy smokers. We repeated these calculations, removing the effect of benzene in cigarettes based on the estimated potencies. From these life tables we determined smoking-attributable risks and benzene-attributable risks. The ratio of the latter to the former constitutes the proportion of smoking-induced cases attributable to benzene. Based on linear potency models, the benzene in cigarette smoke contributed from 8 to 48% of smoking-induced total leukemia deaths [95% upper confidence limit (UCL), 20-66%], and from 12 to 58% of smoking-induced AML deaths (95% UCL, 19-121%). The inclusion of a quadratic term yielded results that were comparable; however, potency models with only quadratic terms resulted in much lower attributable fractions--all < 1%. Thus, benzene is estimated to be responsible for approximately one-tenth to one-half of smoking-induced total leukemia mortality and up to three-fifths of smoking-related AML mortality. In contrast to theoretical arguments that linear models substantially overestimate low-dose risk, linear extrapolations from empirical data over a dose range of 10- to 100-fold resulted in plausible predictions.
Vargas-Machuca, António S. J., Escritura, Tradicion e Iglesia como regias de Fé. Edic. Facultad de Teologia. 1 vol. de 338 ps. 240x170. Granada 1967
Creators: name: Santos, Alexandrino Fernandes Dos
Publisher: name: Theologica
Year: 1969

description: Theologica, v. 4 n. 1 (1969)
Statistical models for spatial patterns of heavy particles in turbulence
Creators: name: Gustavsson, K.
name: Mehlig, B.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: The dynamics of heavy particles suspended in turbulent flows is of fundamental importance for a wide range of questions in astrophysics, atmospheric physics, oceanography, and technology. Laboratory experiments and numerical simulations have demonstrated that heavy particles respond in intricate ways to turbulent fluctuations of the carrying fluid: non-interacting particles may cluster together and form spatial patterns even though the fluid is incompressible, and the relative speeds of nearby particles can fluctuate strongly. Both phenomena depend sensitively on the parameters of the system. This parameter dependence is difficult to model from first principles since turbulence plays an essential role. Laboratory experiments are also very difficult, precisely since they must refer to a turbulent environment. But in recent years it has become clear that important aspects of the dynamics of heavy particles in turbulence can be understood in terms of statistical models where the turbulent fluctuations are approximated by Gaussian random functions with appropriate correlation functions. In this review we summarise how such statistical-model calculations have led to a detailed understanding of the factors that determine heavy-particle dynamics in turbulence. We concentrate on spatial clustering of heavy particles in turbulence. This is an important question because spatial clustering affects the collision rate between the particles and thus the long-term fate of the system.
description: Review article. Revised version, as published, 57 pages, 16 figures, 1 table
Challenges For The Integration Of SaudiMED Competencies Into The UGME Curriculum: Deans' Views
Creators: name: Ageely, Hussein
Publisher: name: University of Illinois at Chicago
Year: 2022
Subjects: Uncategorized

description: SaudiMED competencies are a system recently adopted by the National Commission for Academic Assessment and Accreditation (NCAAA) that represents the target of achievement when developing the undergraduate medical curriculum. The main objective of this study is to evaluate the challenges for the integration of SaudiMED competencies into the evidence-based undergraduate medical education (UGME) curriculum based on the perspectives of Deans of Saudi Medial Colleges. The study is an observational questionnaire-based cross-sectional study conducted among Deans of Saudi Medical Schools. The study was conducted to cover all intended population, given that all members of Saudi Medical Deans Committee were invited to participate. Seventeen out of 26 Deans of Schools of Medicine in Saudi Arabian universities responded to the questionnaire. Ten out of the 17 Deans stated that the integration of SaudiMED had started at their school. Approximately 17% of the Deans began implementing the SaudiMED between 2011 and 2013. Factors that aided in the integration of SaudiMED in the undergraduate medical curriculum include the commitment of well-trained authorities, adoption of new methods, and staff development programs led by experts, whereas challenges involved resistance of teaching staff to change, the use of a traditional curriculum, and the lack of a quality assurance system. In conclusion, Deans reflected a strong awareness regarding challenges and successful interventions. The main challenges include the resistance of teaching staff to change, the use of traditional curriculum, and the lack of a quality assurance system. Interventions needed for successful integration include faculty commitment, faculty development programs, and a strong quality assurance system
De Broglie, Guy, S. J., Les signes crédibilité de la Révélation chrétienne. Edit. Arthème Fayard. 1 vol. de 160 ps. 195x145. Paris 1964
Creators: name: Santos, Alexandrino Fernandes Dos
Publisher: name: Theologica
Year: 1969

description: Theologica, v. 4 n. 1 (1969)
The Effects of Internal Radiation Exposure on Cancer Mortality in Nuclear Workers at Rocketdyne/Atomics International
Creators: name: Young, Bambi
name: Morgenstern, Hal
name: Crawford-Brown, Douglas
name: Ritz, Beate
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2000

description: We examined the effects of chronic exposure to radionuclides, primarily uranium and mixed-fission products, on cancer mortality in a retrospective cohort study of workers enrolled in the radiation-monitoring program of a nuclear research and development facility. Between 1950 and 1994, 2,297 workers were monitored for internal radiation exposures, and 441 workers died, 134 (30.4%) of them from cancer as the underlying cause. We calculated internal lung-dose estimates based on urinalysis and whole-body and lung counts reported for individual workers. We examined cancer mortality of workers exposed at different cumulative lung-dose levels using complete risk-set analysis for cohort data, adjusting for age, pay type, time since first radiation monitored, and external radiation. In addition, we examined the potential for confounding due to chemical exposures and smoking, explored whether external radiation exposure modifies the effects of internal exposure, and estimated effects after excluding exposures likely to have been unrelated to disease onset. Dose-response relations were observed for death from hemato- and lymphopoietic cancers and from upper aerodigestive tract cancers, adjusting for age, time since first monitored, pay type, and external (gamma) radiation dose. No association was found for other cancers, including cancers of the lung. Despite the small number of exposed deaths from specific cancer types and possible bias due to measurement error and confounding, the positive findings and strong dose-response gradients observed suggest carcinogenic effects of internal radiation to the upper aerodigestive tract and the blood and lymph system in this occupational cohort. However, causal inferences require replication of our results in other populations or confirmation with an extended follow-up of this cohort.
AutoDOViz: Human-Centered Automation for Decision Optimization
Creators: name: Weidele, Daniel Karl I.
name: Afzal, Shazia
name: Valente, Abel N.
name: Makuch, Cole
name: Cornec, Owen
name: Vu, Long
name: Subramanian, Dharmashankar
name: Geyer, Werner
name: Nair, Rahul
name: Vejsbjerg, Inge
name: Marinescu, Radu
name: Palmes, Paulito
name: Daly, Elizabeth M.
name: Franke, Loraine
name: Haehn, Daniel
Publisher: name: arXiv
Year: 2023
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: We present AutoDOViz, an interactive user interface for automated decision optimization (AutoDO) using reinforcement learning (RL). Decision optimization (DO) has classically being practiced by dedicated DO researchers where experts need to spend long periods of time fine tuning a solution through trial-and-error. AutoML pipeline search has sought to make it easier for a data scientist to find the best machine learning pipeline by leveraging automation to search and tune the solution. More recently, these advances have been applied to the domain of AutoDO, with a similar goal to find the best reinforcement learning pipeline through algorithm selection and parameter tuning. However, Decision Optimization requires significantly more complex problem specification when compared to an ML problem. AutoDOViz seeks to lower the barrier of entry for data scientists in problem specification for reinforcement learning problems, leverage the benefits of AutoDO algorithms for RL pipeline search and finally, create visualizations and policy insights in order to facilitate the typical interactive nature when communicating problem formulation and solution proposals between DO experts and domain experts. In this paper, we report our findings from semi-structured expert interviews with DO practitioners as well as business consultants, leading to design requirements for human-centered automation for DO with RL. We evaluate a system implementation with data scientists and find that they are significantly more open to engage in DO after using our proposed solution. AutoDOViz further increases trust in RL agent models and makes the automated training and evaluation process more comprehensible. As shown for other automation in ML tasks, we also conclude automation of RL for DO can benefit from user and vice-versa when the interface promotes human-in-the-loop.
Didier, J.-Ch., Faut-il baptiser les enfants? La réponse de la tradition. Ed. Du Cerf. Vol. de 304 ps. 115x175. Paris 1967
Creators: name: Correia, Francisco Carvalho
Publisher: name: Theologica
Year: 1969

description: Theologica, v. 4 n. 1 (1969)
title: Монтаж, техническое обслуживание и ремонт горного электромеханического оборудования и средств автоматики
Creators: name: ELS IPR BOOKS
Publisher: name: EDP Hub (Идипи Хаб), Профобразование
Year: 2024

description: В учебнике изложены теория и практика по техническому обслуживанию горных машин, узлов и механизмов, монтаж, демонтаж узлов и механизмов горного оборудования, опробование и сдача в эксплуатацию оборудования, применяемого в очистных и подготовительных забоях, ремонт автоматических устройств, средств измерений и связи, наладка и регулировка автоматических устройств, подготовка первичной технической документации и обеспечение исправного состояния горного электромеханического оборудования. В издании приводятся примеры для ремонта электромеханического оборудования с помощью современных методов, приборов и средств, с наглядными иллюстрациями и таблицами. Для проведения контроля знаний предусмотрены вопросы по разделам, составленные по пройденным темам. Учебник предназначен для студентов учебных заведений технического и профессионального образования, обучающихся по специальностям области образования «Электротехника и энергетика», изучающих дисциплину «Горные машины и комплексы».
Perceptions of Bilingual Education: A Mixed Methods Study Exploring Latinx Parents’ Experiences
Creators: name: Monsivais Diers, Norma
Publisher: name: University of Illinois at Chicago
Year: 2022
Subjects: Uncategorized

description: As the Latinx Spanish-speaking and emergent bilingual population nationwide grow, there is a pressing need for more inclusive language education programs in schools. Simultaneously, it is critical to recognize Latinx parents’ educational goals for their children. This study explores Latinx parents’ experiences navigating the language program at their children’s school in Illinois. It also examines the possible discrepancies between parents’ educational goals and the school’s goals through the theoretical lens of bilingual education typology and a family language policy framework (Spolsky, 2012). Using a mixed-methods methodology, I surveyed 101 Latinx parents and interviewed thirty parents. I analyzed the quantitative phase using descriptive statistics and used phenomenological data analysis for the qualitative phase. The integration of both phases resulted in a statistics-by-theme joint display. Three main findings emerged: (a) educational experiences: across different programs, parents were satisfied with the program because their children had achieved bilingualism; (b) educational beliefs: parents desired programs that developed their children’s Spanish language skills so they could sustain relationships with family in the US and their birthplace; and (c) family language policies: parents cultivated Spanish through language and literacy practices at home. Parents have many questions and misunderstandings about language programs and lack accessibility to dual language programs that align most with their educational goals. This study highlights the intersection of language education policy at school and family education policies at home. Schools often ignore parents’ views on the significance of keeping Spanish in the family’s life (McClain, 2010), especially when children have special education needs.
Workshop to Identify Critical Windows of Exposure for Children's Health: Cancer Work Group Summary
Creators: name: Potischman, Nancy
name: Hanson, James
name: Vu, Vanessa
name: Olshan, Andrew F.
name: Whyatt, Robin
name: Wolff, Mary
name: Diwan, Bhalchand A.
name: Fear, Nicola
name: Anderson, Lucy
name: Roman, Eve
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2000

description: We considered whether there are discrete windows of vulnerability in the development of cancer and which time periods may be of the greatest importance. Cancer was considered broadly, including cancers in childhood as well as adult cancers that may have an in utero or childhood origin. We concluded that there was evidence from animal and epidemiologic studies for causal relationships for preconceptional, in utero, and childhood exposures and cancer occurrence in children and adults. However, the evidence is incomplete and all relevant critical windows may not have been identified. The comprehensive evaluation of the relative importance of specific time windows of exposure is limited. Improvements in the design of epidemiologic studies and additional animal studies of mechanisms are warranted.
Workshop to Identify Critical Windows of Exposure for Children's Health: Cardiovascular and Endocrine Work Group Summary
Creators: name: Osmond, Clive
name: Sonawane, Babsaheb R.
name: Sadler, Thomas W.
name: Barr, Mason
name: Lau, Christopher S.
name: Ozanne, Susan E.
name: DeSesso, John M.
name: Simmons, Rebecca A.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2000

description: The work group on cardiovascular and endocrine effects was asked to review the current state of knowledge about children's windows of vulnerability to developmental toxicants and to recommend how that information may be used to improve risk assessment and public health. We considered differences between structural defects, where periods of vulnerability are rather well defined, and functional defects, where periods of vulnerability are quite elusive.
Nurturing Student Agency: Pedagogical Structures Emerging Through Co-Teaching
Creators: name: Koritsaris, Jenna N
Publisher: name: University of Illinois at Chicago
Year: 2022
Subjects: Uncategorized

description: Science classrooms continue to privilege narrow conceptions of science, and students of color are frequently identified by teachers as disengaged or uninterested in science–part of a deficit narrative socially constructed over time. In this design-based research study, I explored the development and implementation of culturally relevant and justice-centered science curriculum and pedagogy in my Assisted Biology class with mostly students of color, and specifically: (a) how student involvement in the planning and implementation of science lessons unfolded and supported expressions of student agency; and (b) how students used knowledge gained within the science classroom, in conjunction with their own experiences and interests, to shape and interrogate structures in the science classroom and in society. The conceptual framework that guided this study was built on several theoretical perspectives including conceptions of equity in science education, science identity construction of students of color, the structure-agency dialectic, and justice centered, culturally relevant, and reality pedagogies. A first round of data collection occurred in the first semester of a school year during the energy unit, and a second as students worked on their second-semester-long Ted Talk projects. Several themes emerged that captured ways in which structures and student agency intermingled. Co-generative dialogue, small group work, and student designed and facilitated lessons fostered relationships and built community within the science classroom, bringing issues of social justice to surface and guiding the transformation of the science curriculum. Students’ development of their own Ted Talks on topics of interest and passion, with peer and teacher support and guidance, offered them opportunities to not only address social injustices and oppressive structures, but also develop and express both representational and residential agency. Expressions of agency became more common and strengthened as the year went on, eventually including expressions of residential agency. Narratives composed on four students’ ways of engaging in science class showed varied forms of evolution of agency expression. Student designed and facilitated lessons, supported by the creation of a comfortable classroom community, helped create a cosmopolitan science classroom. Implications for research, practice, and policy are discussed in the context of the study’s findings and conclusions.
A Differentiable Signed Distance Representation for Continuous Collision Avoidance in Optimization-Based Motion Planning
Creators: name: Guthrie, James
Publisher: name: arXiv
Year: 2023
Subjects: subject: Robotics (cs.RO)
subject: Systems and Control (eess.SY)
subject: Optimization and Control (math.OC)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Mathematics

description: This paper proposes a new set of conditions for exactly representing collision avoidance constraints within optimization-based motion planning algorithms. The conditions are continuously differentiable and therefore suitable for use with standard nonlinear optimization solvers. The method represents convex shapes using a support function representation and is therefore quite general. For collision avoidance involving polyhedral or ellipsoidal shapes, the proposed method introduces fewer variables and constraints than existing approaches. Additionally the proposed method can be used to rigorously ensure continuous collision avoidance as the vehicle transitions between the discrete poses determined by the motion planning algorithm. Numerical examples demonstrate how this can be used to prevent problems of corner cutting and passing through obstacles which can occur when collision avoidance is only enforced at discrete time steps.
description: 8 pages, 2 figures, accepted for publication at IEEE Conference on Decision and Control, 2022
Star Formation in Ultrafaint Dwarfs: Continuous or Single-age Bursts?
Creators: name: Webster, David
name: Bland-Hawthorn, Joss
name: Sutherland, Ralph S.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We model the chemical evolution of six UFDs: Bootes I, Canes Venatici II, Coma Berenices, Hercules, Leo IV and Ursa Major I, based on their recently determined star formation histories. We show that two single-age bursts cannot explain the observed [$α$/Fe] vs [Fe/H] distribution in these galaxies and that some self-enrichment is required within the first burst. An alternative scenario is modelled, in which star formation is continuous except for short interruptions when one or more supernovae temporarily blow the dense gas out from the centre of the system. This model allows for self-enrichment and can reproduce the chemical abundances of the UFDs in which the second burst is only a trace population. We conclude that the most likely star formation history is one or two extended periods of star formation, with the first burst lasting for at least 100 Myr. As found in earlier work, the observed properties of UFDs can be explained by formation at a low mass ($M_{\rm{vir}}\sim10^7$ M$_\odot$), rather than being stripped remnants of much larger systems.
description: 7 pages, 5 figures
Workshop to Identify Critical Windows of Exposure for Children's Health: Immune and Respiratory Systems Work Group Summary
Creators: name: Pinkerton, Kent
name: Chen, David
name: Etzel, Ruth A.
name: Landreth, Kenneth
name: Zoetis, Tracey
name: Jarabek, Annie M.
name: Holladay, Steven D.
name: Smialowicz, Ralph J.
name: Halonen, Marilyn
name: Dietert, Rodney R.
name: Peden, David B.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2000

description: Fetuses, infants, and juveniles (preadults) should not be considered simply "small adults" when it comes to toxicological risk. We present specific examples of developmental toxicants that are more toxic to children than to adults, focusing on effects on the immune and respiratory systems. We describe differences in both the pharmacokinetics of the developing immune and respiratory systems as well as changes in target organ sensitivities to toxicants. Differential windows of vulnerability during development are identified in the context of available animal models. We provide specific approaches to directly investigate differential windows of vulnerability. These approaches are based on fundamental developmental biology and the existence of discrete developmental processes within the immune and respiratory systems. The processes are likely to influence differential developmental susceptibility to toxicants, resulting in lifelong toxicological changes. We also provide a template for comparative research. Finally, we discuss the application of these data to risk assessment.