cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Photometric Classification of Early-Time Supernova Lightcurves with SCONE
Creators: name: Qu, Helen
name: Sako, Masao
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: In this work, we present classification results on early supernova lightcurves from SCONE, a photometric classifier that uses convolutional neural networks to categorize supernovae (SNe) by type using lightcurve data. SCONE is able to identify SN types from lightcurves at any stage, from the night of initial alert to the end of their lifetimes. Simulated LSST SNe lightcurves were truncated at 0, 5, 15, 25, and 50 days after the trigger date and used to train Gaussian processes in wavelength and time space to produce wavelength-time heatmaps. SCONE uses these heatmaps to perform 6-way classification between SN types Ia, II, Ibc, Ia-91bg, Iax, and SLSN-I. SCONE is able to perform classification with or without redshift, but we show that incorporating redshift information improves performance at each epoch. SCONE achieved 75% overall accuracy at the date of trigger (60% without redshift), and 89% accuracy 50 days after trigger (82% without redshift). SCONE was also tested on bright subsets of SNe (r<20 mag) and produced 91% accuracy at the date of trigger (83% without redshift) and 95% 5 days after trigger (94.7% without redshift). SCONE is the first application of convolutional neural networks to the early-time photometric transient classification problem. All of the data processing and model code developed for this paper can be found in the SCONE software package located at github.com/helenqu/scone.
description: submitted to AJ, code available at https://github.com/helenqu/scone
KNOWLEDGE, ATTITUDE AND PRACTICE BASED SURVEY OF GINGIVAL RETRACTION AND ITS METHOD AMONG DENTAL PRACTITIONERS
Creators: name: Sswedheni. S. U
name: M. Anisha Sebatni
name: Sarath Kumar
name: Vidya Venkat
name: Vandana  James
name: S. Balagopal
Publisher: name: Zenodo
Year: 2024
Subjects: Gingival Retraction, Gingival Retraction Methods.

description: Abstract

Introduction: The long-term success of indirect restorations like inlays, veneers and full coverage crown depends on the marginal adaptation between the prepared teeth and the crown. The margin of the crown is placed equigingival or subgingival based on the caries and esthetic needs. The success of the indirect restorations also depends on the accurate impression of the finish line for the snap marginal fit. The elastomeric impression materials such as the hydrocolloids and the rubber base impression materials, used in the construction of inlays, crowns, and bridges, do not displace the gingival tissues and necessitate gingival retraction to expose the gingival margins of the tooth preparations. The role of gingival retraction is to temporarily displace the gingiva for flow of impression material into the sulcus and to record the finish line. Objective: The objective of this present study was to assess the knowledge, attitude & practice of gingival retraction and its method among dental practitioners in Chennai. Materials and method: A questionnaire-based survey consisting of 15 questions was conducted between February to March 2023. Results: This study showed that 41.7% the clinicians used combination of methods for gingival retraction and 43% used advanced gingival retraction like expasyl material. Conclusion: The increased level of knowledge and information about gingival displacement materials and methods shall definitely improve the periodontal health and increase clinical longevity of the indirect restorations.
title: Adaptive Density Estimation Based on the Mode Existence Test
Creators: name: Jawhar, Nizar Sami
Publisher: name: Utah State University
Year: 1996

description: The kernel persists as the most useful tool for density estimation. Although, in general, fixed kernel estimates have proven superior to results of available variable kernel estimators, Minnotte's mode tree and mode existence test give us newfound hope of producing a useful adaptive kernel estimator that triumphs when the fixed kernel methods fail. It improves on the fixed kernel in multimodal distributions where the size of modes is unequal, and where the degree of separation of modes varies. When these latter conditions exist, they present a serious challenge to the best of fixed kernel density estimators. Capitalizing on the work of Minnotte in detecting multimodality adaptively, we found it possible to determine the bandwidth h adaptively in a most original fashion and to estimate the mixture normals adaptively, using the normal kernel with encouraging results.
title: An Inverse Approach to a Probability Model for Fractured Networks
Creators: name: Vail, Stacy G.
Publisher: name: Utah State University
Year: 1994

description: A common problem in science and engineering applications deals with finding information about a system where only limited information is known. One example of this problem is determining the geometry of an aquifer or oil reservoir based on well tests taken at the site. The Conditional Coding Method attacks this type of problem. This method uses the Simulated Annealing Algorithm in conjunction with a probability model which generates possible solutions based on a uniform random number list. The Annealing Algorithm generates a conditional probability distribution on all possible solutions generated by the probability model, conditioned on the observed data set. The problem is attacked by sampling from this distribution. This method accounts for the noise inherent in the data set as well as the uncertainty due to the limited amount of data available.
CONNECTIVITY OF PEOPLE'S MARKET PROTECTION POLICIES IN THE ERA OF SOCIETY 5.0 IN INCREASING REGIONAL ECONOMIC GROWTH IN DISADVANTAGED DISTRICTS OF BANTEN PROVINCE
Creators: name: ONDY ASEP SAPUTRA
name: JUMANAH
name: MIFTAH FAIZ ALI RAMDHAN
name: ARIF NUGROHO
Publisher: name: Zenodo
Year: 2024
Subjects: Policy Connectivity, Traditional Markets, Economic Growth, Society 5.0 Era.

description: Abstract

The transformation of life is going quickly so that changes are felt by the community as a result of the progress of the times that have a positive and negative impact. It is undeniable that in the 5.0 era, traditional markets experience many challenges, namely competing with virtual markets and modern markets that are starting to stand in every place, especially in regions, cities, and districts in the Banten Province area. The government must act quickly in maintaining traditional markets to maintain market balance to reduce poverty levels. Traditional markets are gradually shrinking, affecting economic activities. This study uses a qualitative approach with the collection of primary and secondary data. The results of the study show that policy connectivity is needed to synergize traditional market management in order to adapt to the needs and demands of the community so that it can bring the welfare of the local community to improve the regional economy so that it can catch up.  Some of the things that need to be done through; (1) Digitalization of the People's Market, (2) Education and Training, (3) Strategic Partnerships, (4) Regulatory and Policy Support, (5) Market Promotion and Education, (6) Quality Improvement and Product Diversification, (7) Monitoring and Evaluation.
Star burst in W49N presumably induced by cloud-cloud collision
Creators: name: Miyawaki, Ryosuke
name: Hayashi, Masahiko
name: Hasegawa, Tetsuo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present high resolution observations of CS(J=1-0), H13CO+ (J=1-0), and SiO(v=0:J=1-0) lines, together with the 49GHz and 86GHz continuum emissions, toward W49N carried out with Nobeyama Millimeter Array. We identified 11 CS, 8 H13CO+, and 6 SiO clumps with radii of 0.1-0.5pc. The CS and H13CO+ clumps are mainly divided into two velocity components, one at 4kms-1 and the other at 12kms-1, while the SiO clumps have velocities between the two components. The SiO emission is distributed toward the UCHII ring, where the 4kms-1 component clumps of CS and H13CO+ also exist. The 12kms-1 component clumps of CS are detected at the east and west of the UCHII ring with an apparent hole toward the ring. The clump masses vary from 4.4x10^2 M_SUN to 4.9x10^4 M_SUN with the mean values of 0.94x10^4M_SUN, 0.88x10^4M_SUN, and 2.2x10^4M_SUN for the CS, H13CO+, and SiO clumps, respectively. The total masses derived from CS, H13CO+, and SiO clumps are 1.0x10^5M_SUN, 0.70x10^5M_SUN, and 1.3x10^5 M_SUN, respectively, which agree well with the corresponding virial masses of 0.71x10^5M_SUN, 1.3x10^5M_SUN, and 0.88x10^5M_SUN, respectively. The average molecular hydrogen densities of the clumps are 0.90x10^6 cm-3, 1.4x10^6cm-3, and 7.6x10^6 cm-3 for the CS, H13CO+ and SiO clumps, respectively. The density derived from the SiO clumps seems significantly higher than those from the others, probably because the SiO emission is produced in high density shocked regions. The free fall time scale of the clumps is estimated to be ~3x10^4 yr, which gives an accretion rate of 3x10-3-1M_SUN yr-1 onto a stellar core. The observed clumps are, if they are undergoing free fall, capable of producing dozens of massive stars in the next 10^5 yr. We propose a view that pre-existing two clouds collided with each other almost face-on to produce the observed clumps and triggered the burst of massive star formation in W49N.
description: 21pages,17figures, PASJ accepted for publication
Atmospheric Channel Characteristics for Quantum Communication with Continuous Polarization Variables
Creators: name: Heim, Bettina
name: Elser, Dominique
name: Bartley, Tim
name: Sabuncu, Metin
name: Wittmann, Christoffer
name: Sych, Denis
name: Marquardt, Christoph
name: Leuchs, Gerd
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate the properties of an atmospheric channel for free space quantum communication with continuous polarization variables. In our prepare-and-measure setup, coherent polarization states are transmitted through an atmospheric quantum channel of 100m length on the roof of our institute's building. The signal states are measured by homodyne detection with the help of a local oscillator (LO) which propagates in the same spatial mode as the signal, orthogonally polarized to it. Thus the interference of signal and LO is excellent and atmospheric fluctuations are autocompensated. The LO also acts as spatial and spectral filter, which allows for unrestrained daylight operation. Important characteristics for our system are atmospheric channel influences that could cause polarization, intensity and position excess noise. Therefore we study these influences in detail. Our results indicate that the channel is suitable for our quantum communication system in most weather conditions.
description: 6 pages, 4 figures, submitted to Applied Physics B following an invitation for the special issue "Selected Papers Presented at the 2009 Spring Meeting of the Quantum Optics and Photonics Section of the German Physical Society"
title: Alteraciones multifocales de la señal de la médula ósea de los cuerpos vertebrales en RM. Diagnóstico diferencial
Creators: name: Sales Fernandez, Covadonga
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: MR
subject: Musculoskeletal spine

description: Objetivo docente
Revisión del tema
Conclusiones
Bibliografía
description: Objetivo docente:
Describir las alteraciones multifocales más frecuentes de la señal de la médula ósea de los cuerpos vertebrales en RM tanto normales como patológicas,
establecer eldiagnóstico diferencial de las entidades más frecuentese ilustrar con...
Study of the volume and spin collapse in orthoferrite LuFeO_3 using LDA+U
Creators: name: Adams, Donat J.
name: Amadon, Bernard
Publisher: name: arXiv
Year: 2009
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Rare earth (R) orthoferrites RFeO_3 exhibit large volume transitions associated with a spin collapse. We present here ab initio calculations on LuFeO_3. We show that taking into account the strong correlation among the Fe-3d electrons is necessary. Indeed, with the LDA+U method in the Projector Augmented Wave (PAW), we are able to describe the isostructural phase transition at 50 GPa, as well as a volume discontinuity of 6.0% at the transition and the considerable reduction of the magnetic moment on the Fe ions. We further investigate the effect of the variation of U and J and find a linear dependence of the transition pressure on these parameters. We give an interpretation for the non-intuitive effect of J. This emphasizes the need for a correct determination of these parameters especially when the LDA+U is applied to systems (e.g in geophysical investigations) where the transition pressure is a priori unknown.
A study of the X-ray emission from the plasma focus
Creators: name: Rankin, Graham Whitelaw
Publisher: name: University of British Columbia
Year: 2010

description: The X-ray emission from a plasma focus has been studied using time integrated and streak photography. The plasma focus, a small volume of very dense and hot plasma was created in a coaxial plasma gun driven by a fast current pulse of period T ~ 2 μsec which was produced by discharging a condensor bank of V = 12-15 kV, and C = 84 μf. Measurements have shown that a diffuse X-ray emitting plasma column is formed in the 'early' pinch stage, which extends a few centimeters in the axial direction, has expansion velocities of between 2-6 x 10⁷ cm/sec. and lasts for 30-60 nsec. In the following 10-30 nsec. X-ray emission occurs from small plasma regions which have little or no axial velocity. The distance between these "hot" spots are of the order of half a centimeter. These measurements and observations of the X-ray emitting regions are consistent with results obtained by Peacock and Mather. By comparing their results with those of this experiment it is concluded that the appearance of the isolated X-ray sources is associated with the m = 0 instability.
PEDAGOGICAL FOUNDATIONS OF DEVELOPMENT OF PERFORMANCE SKILLS OF FUTURE MUSIC TEACHERS ON THE INSTRUMENT "DOIRA"
Creators: name: Qobilqoriyev, Qudratilla
Publisher: name: Zenodo
Year: 2023

description: In this article, there are opinions about the pedagogical foundations and conditions for the development of musical instrument performance skills in students of music education. Also, the opinions of musicologists on the performance possibilities and description of the “Doira” musical instrument are presented.
The evolution effects of radius and moment of inertia for rapidly rotating neutron stars
Creators: name: Lan, Lin
name: Gao, He
name: Ai, Shunke
name: Li, Shao-Ze
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: A newly born millisecond magnetar is thought to be the central engine of some gamma-ray bursts (GRBs), especially those that present long-lasting X-ray plateau emissions. By solving the field equations, we find that when the rotational speed of the magnetar is approaching the breakup limit, its radius $R$ and moment of inertia $I$ would undergo an obvious evolution as the magnetar spins down. Meanwhile, the values of $R$ and $I$ would sensitively depend on the adoption of neutron star (NS) equation of state (EoS) and the NS baryonic mass. With different EoSs and baryonic masses considered, the magnetic dipole radiation luminosity ($L_{\rm dip}$) could be variant within one to two orders of magnitude. We thus suggest that when using the X-ray plateau data of GRBs to diagnose the properties of the nascent NSs, EoS and NS mass information should be invoked as simultaneously constrained parameters. On the other hand, due to the evolution of $R$ and $I$, the temporal behavior of $L_{\rm dip}$ would become more complicated. For instance, if the spin-down process is dominated by gravitational wave emission due to the NS asymmetry caused by magnetic field distortion ($ε\propto B_{p}^{2}$), the segment $L_{\rm dip}\propto t^{0}$ could be followed by $L_{\rm dip}\propto t^{-γ}$ with $γ$ larger than 3. This case could naturally interpret the so-called internal X-ray plateau feature shown in some GRB afterglows, which means the sharp decay following the plateau is unnecessarily corresponding to the NS collapsing. This may explain why some internal X-ray plateaus are followed by late time central engine activity, manifested through flares and second shallow plateaus.
Integrating a mandatory and hands-on course on Open Science and Reproducible Research into the … Curriculum
Creators: name: Morgan, David Philip
Publisher: name: Zenodo
Year: 2023
Subjects: Reproducibility, Open Science, Training, Teaching, Education, research, data

description: In this presentation, we detail the motivation and current development of a new compulsory Open Science and Reproducible Research module of the upcoming Mannheim Master’s in Social Data Science. The goal of this module is for students to develop expertise, methodological competence and personal competence in Open Science practices so that they can implement in the future research endeavours. It is hoped that this course is the first step towards introducing Open Science into their broader university curriculum.
title: Inverse Problem in Porous Medium Using Homogenization
Creators: name: Alkes, Helen
Publisher: name: Utah State University
Year: 1992

description: The problem under consideration is that of obtaining a representation of the permeability of a porous medium which is heterogeneous and anisotropic from limited information. To solve this inverse problem we propose the use of two different pieces that work together. A simulated annealing algorithm is presented and coupled with an homogenization technique; together these solve the problem which was posed. Further, numerical simulation results are presented illustrating the use of the simulated annealing algorithm as well as a coupling with the homoginization technique. This study illustrates that the performance of the annealing algorithm is enhanced with usage of homogenization.
The local Galactic magnetic field in the direction of Geminga
Creators: name: Salvati, M.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The Milagro hot spot A, close to the Galactic anticenter direction, has been tentatively attributed to cosmic rays from a local reservoir (at a distance ~100 pc), freely streaming along diverging and smooth magnetic field lines. This is at variance with the geometry of the ~kpc scale Galactic magnetic field, which is known to be aligned with the spiral arms. We investigate the information available on the geometry of the magnetic field on the scales (~100 pc) of relevance here. The magnetic field immediately upstream of the heliosphere has been investigated by previous authors by modeling the interaction of this field with the solar wind. At larger distances, we use the dispersion measure and the rotation measure of nearby pulsars (especially towards the third Galactic quadrant). Additional information about the local field towards the North Polar Spur is taken from previous studies of the diffuse radio emission and the polarization of starlight. The asymmetry of the heliosphere with respect to the incoming interstellar medium implies a magnetic field almost orthogonal to the local spiral arm, in the general direction of hot spot A, but more to the south. This is in good agreement with the nearby pulsar data on the one side, and the North Polar Spur data on the other. The local magnetic field on scales of ~100 parsecs around the Sun seems to be oriented so as to provide a direct connection between the Solar system and a possible site of the Geminga supernova; the residual angular difference and the shape and orientation of the Milagro hot spot can be attributed to the field trailing in the wake of the heliosphere.
description: 5 pages, 3 figures, accepted for publication in Astronomy and Astrophysics
THE RELATION BETWEEN SMOKING PATTERN AND HYPERTENSION AMONG ADULTS IN ERBIL CITY
Creators: name: Bala Raoof Mohammed Amina
name: Selwa Elias Yacoubb
name: Karwan Hawez Slemanc
Publisher: name: Zenodo
Year: 2024
Subjects: Hypertension, Smoking Patterns, Socioeconomic Factors, Demographic Factors.

description: Abstract

background: .  Smoking is known to cause acute elevation of blood pressure, yet its chronic effect on hypertension is controversial. Aim of the study: To identify the association between smoking patterns and hypertension among adults in Erbil City Methods: A case-control study was conducted from 1st of January 2023, to1st of October 2023, at Briaty primary health care center in Erbil city/Iraq. A total of 200 adults aged 18-65 years were enrolled, divided into hypertensive cases and non-hypertensive controls. Data were collected through direct interviews using a structured questionnaire  which cover the sociodemographic characteristics, medical conditions and the pattern of smoking . The data analyzed  using either t-test or Chi-square tests  to identify the associations between variables, with a significance level set at p ≤ 0.05. Results: Significant associations were found between hypertension and several demographic and lifestyle factors, including age, residence, educational level, occupation, diabetes mellitus, cardiovascular diseases, BMI, and socioeconomic status. Older adults (51-65 years), urban residents, illiterate individuals, and unskilled workers showed higher hypertension prevalence. Hypertension was also significantly associated with diabetes mellitus and cardiovascular diseases, with higher BMI being a notable risk factor. However, no significant associations were found between hypertension and smoking patterns; type of smoking, duration of smoking, age of beginning smoking, smoking amount, and duration of quitting smoking. Conclusion: The study highlights that while several demographic, socioeconomic, and health-related factors are significantly associated with hypertension, no significant association was found between smoking patterns and hypertension. Future research with larger samples and longitudinal designs is needed to further explore this relationship.
title: A Maple Package for the Variational Calculus
Creators: name: Hillyard, Cinnamon
Publisher: name: Utah State University
Year: 1992

description: The HELMHOLTZ package, written in Maple V, is a collection of commands to support research in the variational calculus. These commands include the standard operators on differential forms, Euler-Lagrange operators, homotopy operators, Lie bracket, Lie derivatives, and the prolongation of a vector field. We give a brief introduction to the variational calculus. We describe each of the commands in the HELMHOLTZ package completely along with numerous examples of each. Applications of the package include verification of symmetry groups for differential equations, solving the inverse problem of the calculus of variations, computing generalized symmetries, and finding variational integrating factors. A complete listing of the Maple code for HELMHOLTZ is found in an appendix.
title: Anomalías congénitas  de la Vena Cava Superior e Inferior
Creators: name: Vivas Escalona, María Valentina
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Anatomy
subject: Veins / Vena cava
subject: CT
subject: Computer Applications-Detection, diagnosis
subject: Congenital

description: Objetivo docente
Revisión del tema
Conclusiones
Bibliografía
description: Objetivo docente:
Repasar la embriología y anatomía de la Vena Cava. Describir las variantes anatómicas de la Vena...
title: Infrared Imagery Scanning Systems For Censusing Big Game
Creators: name: Goldberg, Peter S.
Publisher: name: Utah State University
Year: 1977

description: The primary objective of this study was to explore the potential of an airborne infrared scanner for the census of mule deer (Odocoileus hemionus) and elk (Cervus canadensis) in the Intermountain West. Flight altitude was varied in hopes of achieving species separation, and ground studies were conducted, using a hand-held radiometer and captive deer, to find the optimum time of morning to census. The problems and potentialities of infrared imagery scanning systems for censusing big game are discussed and compared to visual aerial census methods.
AI IN EDUCATION: A STUDY WITH REFERENCE TO ENGLISH LANGUAGE LEARNING
Creators: name: Dr. SONAL SHARMA
Publisher: name: Zenodo
Year: 2024
Subjects: Artificial Intelligence (AI), Generative Artificial Intelligence (Gen-AI), Machine Learning, Mobile Apps, ELT, Teaching-Learning.

description: Abstract

Artificial Intelligence (AI), a computer-based simulation of human intelligence intended to act like humans. AI is one of the driving forces behind the 4.0 industrial revolution, making teaching and learning more accessible in universities. Being the primary driving factors behind the 4.0 industrial revolution, artificial intelligence (AI), is opening up education to more students. Artificial intelligence technology provides the chance to enhance English linguistic competence among students. By offering practice exercises and personalized feedback based on individual student needs and learning styles, artificial intelligence (AI) technology holds the prospect of improving the effectiveness and efficiency of language acquisition.AI provides the learner’s a customized environment where students can learn English as per their needs. AI boosts practical abilities like writing using correct grammar and acquiring vocabulary. Additionally, it increases students' practice proficiency in the language while optimizing the impact of English teaching in ELT. As a result, learners may understand English since they have access to a large range of AI-powered ELT applications. Such technologies include Google Translate, Text to Speech (TTS), EnglishAble, Orai, Elsa, Chatbot, Duolingo, Neo platforms, and many others. With the use of tools like ChatGPT or Google’s Bard, genAI is able to produce human-like text with minimal effort on the user’s part.  These intelligent machines may simulate intelligence and make judgements in the same way as people by using a technique that is compatible with computers and mobile devices. The paper aims at gaining a deeper understanding of the ways in which AI is being used to enhance the learning of English language, by conducting an in-depth analysis of the existing literature available on this topic. The results of the study show that AI offers an environment that is conducive to learning English.
title: Population Characteristics and Movement Patterns of Cougars in Southern Utah
Creators: name: Hemker, Thomas P.
Publisher: name: Utah State University
Year: 1982

description: Movements of 22 cougars (Felis concolor) were monitored by radio-telemetry between January 1979 and July 1981 in southern Utah. The population, composed of resident, transient, and juvenile cougars, remained relatively constant in size for 3 years. Densities (0.4-0.5 cougars/100 km2) were considerably lower than has been reported elsewhere. Average annual home area size of resident females (685 km2) and a single resident male (826 km2) were substantially larger than other home area sizes reported. Home areas of resident females overlapped and resident male home areas may have overlapped as well. Despite the degree of overlap observed, with the exception of family groups, close spatial associations were rare. Dispersal of cubs appeared to be independent of adult resident density. Density of resident cougars appears to be regulated by a social pattern based on land tenure but limited by abundance of mule deer, their principal prey on this study area. The relative vulnerability to hunting of different cougar cohorts is discussed.
Implementing Open Science Standards in Teaching: The Munich Core Curriculum for Empirical Courses
Creators: name: Frank, Maximilian
Publisher: name: Zenodo
Year: 2023
Subjects: Reproducibility, Open Science, Training, Teaching, Education, research, data

description: This talk presents the Core Curriculum for Empirical Courses developed at LMU Munich. The Core Curriculum includes mandatory standards for teaching Open Science Practices in the psychology study program at bachelor's levels.
title: RM cerebral y secuencias venográficas, una herramienta esencial para el diagnóstico y seguimiento de la trombosis venosa en el paciente pediátrico.
Creators: name: Fernández Hernández, Carmen
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Neuroradiology brain
subject: Paediatric
subject: Vascular
subject: MR
subject: MR-Angiography

description: Objetivo docente
Revisión del tema
Conclusiones
Bibliografía
description: Objetivo docente:
Analizar los componentes anatómicos de la circulación venosa cerebral y sus variantes. Describir los hallazgos característicos de la trombosis venosa en las imágenes de RM,
con énfasis en el empleo de secuencias venográficas 2DTOF y tras la...
Prospects for testing the nature of Sgr A*'s NIR flares on the basis of current VLT- and future VLTI-observations
Creators: name: Hamaus, N.
name: Paumard, T.
name: Müller, T.
name: Gillessen, S.
name: Eisenhauer, F.
name: Trippe, S.
name: Genzel, R.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Sagittarius A*, the supermassive compact object at the center of the Galaxy, exhibits outbursts in the near infrared and X-ray domains. These flares are likely due to energetic events very close to the central object, on a scale of a few Schwarzschild radii. Optical interferometry will soon be able to provide astrometry with an accuracy of this order (~10 muas). In this article we use recent photometric near infrared data observed with the adaptive optics system NACO at the Very Large Telescope combined with simulations in order to deploy a method to test the nature of the flares and to predict the possible outcome of observations with the Very Large Telescope Interferometer. To accomplish this we implement a hot spot model and investigate its appearance for a remote observer in terms of light curves and centroid tracks, based on general relativistic ray tracing methods. First, we use a simplified model of a small steady source in order to investigate the relativistic effects qualitatively. A more realistic scenario is then being developed by fitting our model to existing flare data. While indications for the spin of the black hole and multiple images due to lensing effects are marginal in the light curves, astrometric measurements offer the possibility to reveal these high-order general relativistic effects. This study makes predictions on these astrometric measurements and leads us to the conclusion that future infrared interferometers will be able to detect proper motion of hot spots in the vicinity of Sagittarius A*.
description: 15 pages, 14 figures, accepted for publication in ApJ
Redshift evolution of the Amati relation: calibrated results from the Hubble diagram of quasars at high redshifts
Creators: name: Dai, Yan
name: Zheng, Xiao-Gang
name: Li, Zheng-Xiang
name: Gao, He
name: Zhu, Zong-Hong
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Gamma-ray bursts (GRBs) have long been proposed as a complementary probe to type Ia supernovae (SNe Ia) and cosmic microwave background to explore the expansion history of the high-redshift universe, mainly because they are bright enough to be detected at greater distances. Although they lack definite physical explanations, many empirical correlations between GRB isotropic energy/luminosity and some directly detectable spectral/temporal properties have been proposed to make GRBs standard candles. Since the observed GRB rate falls off rapidly at low redshifts, thus preventing a cosmology independent calibration of these correlations. In order to avoid the circularity problem, SN Ia data are usually used to calibrate the luminosity relations of GRBs in the low redshift region (limited by the redshift range for SN Ia sample), and then extrapolate it to the high redshift region. This approach is based on the assumption of no redshift evolution for GRB luminosity relations. In this work, we suggest the use a complete quasar sample in the redshift range of $0.5
A COMPARISON OF THE EFFECTS OF INDIVIDUAL AND TEAM PARTICIPATION IN GAMIFIED LESSONS ON ASSESSMENT PERFORMANCE
Creators: name: FAHAD ANSARI
name: TAHIRA ANWAR LASHARI
name: FARZANA JABEEN
name: SIDRA SULTANA
name: SANA ANWAR LASHARI
Publisher: name: Zenodo
Year: 2024
Subjects: Gamification, Formative Assessment, Summative Assessment, Learning Objectives, Individual Participation, Team Participation, Education.

description: Abstract

Gamification has been used by teachers as a tool to review basic concepts learnt by students in traditional as well as in flipped classrooms. This technology offers students the ability to participate either individually or in teams to solve problems within the given time constraints with points awarded or deducted for the answers provided, and the chance to finish the game on top of a leaderboard, which provides motivation for students to actively engage with the game. This research aims to compare the effects of engaging in gamified lessons individually and in pairs on students’ summative assessment scores. An experiment was conducted in which two groups of students used Quizizz, an online lesson gamification tool, with one group participating in online quiz games on 3 different topics individually, whilst the other group participated in pairs. Both groups were then provided the same summative assessment on these topics to attempt and the results of this were analyzed and compared for both groups to establish the effects of individual versus paired participation in gamified lessons. Data on average points scored and time taken per question for both groups was analyzed using MS Excel, along with graphical comparisons of performances between male and female students and comparisons of scores in the formative and summative assessments taken. This research found that the group of students participating in pairs in the online formative assessment performed better than the group of students participating individually but there was no significant difference between both groups in the summative assessment.
title: Phenotypic Association Between Lactose and Other Milk Components in Western US Dairy Herds and Japan
Creators: name: Asami, Takuji
Publisher: name: Utah State University
Year: 2018

description: Lactose in milk has relatively low variation regardless of season, breed, or country. The study of lactose concentration and correlation among other milk components is limited. Furthermore, dairy farmers have limited access to the lactose data and are not familiar with it. This study was conducted to: 1) investigate the phenotypic correlation between lactose and other milk components; and 2) determine the importance of lactose for dairy herds.
Monthly DHIA records from Utah (DHIA), Dairy Herd Performance Test (DHTP) records from Ibaraki, Japan, and California herd average data (CHAD) covering 27 states were used to analyze the relationships between milk lactose concentrations and parameters related to milk production. Record spans for each data sets for DHIA, DHTP and CHAD were 7 consecutive years ending August 2017, 12 consecutive years ending August 2017, and 9 consecutive years ending August 2017 respectively.
Means for the DHIA records were 187.9 days in milk, 34.6 kg/d milk yield, 4.08% lactose, 3.88% fat, 3.15% protein, 8.86% SNF, 14.4 mg/dl MUN, 256,000 SCC, and 2.4 parity. A negative correlation was observed between lactose concentration and parity (r = -0.27). Positive phenotypic correlations between lactose percentage and milk yield (r = 0.28), and negative correlations with fat (r = -0.17), protein (r = -0.21) and SCC (r = -0.30) were observed. No seasonal fluctuations of milk lactose concentrations were observed.
Mean for the DHTP records were 4.55% lactose, 3.95% fat, 3.29% protein, 8.74% SNF, 283 mOsm/kg osmotic pressure, 19,600 bacteria count, and 222,000 SCC. A seasonality in the lactose concentrations were observed, with the lowest concentrations of lactose observed in late summer and fall. There were no phenotypic correlations between lactose concentrations and protein, but a negative correlation with fat (r = -0.12) was observed. A significant negative correlation with SCC (r = -0.28) was also observed.
Based on the CHAD records, cows with lower lactose concentrations showed a higher culling rate, which indicates that the milk lactose concentration could be a potential indicator of problems in a dairy herd. This study suggest that lactose level could be an indicator for managing dairy farms. Dairy farmers should be able to access lactose data, and these data should be provided by DHIA.
Incoherent transport induced by a single static impurity in a Heisenberg chain
Creators: name: Barisic, O. S.
name: Prelovsek, P.
name: Metavitsiadis, A.
name: Zotos, X.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The effect of a single static impurity on the many-body states and on the spin and thermal transport in the one-dimensional anisotropic Heisenberg chain at finite temperatures is studied. Whereas the pure Heisenberg model reveals Poisson level statistics and dissipationless transport due to integrability, we show using the numerical approach that a single impurity induces Wigner-Dyson level statistics and at high enough temperature incoherent transport within the chain, whereby the relaxation time and d.c. conductivity scale linearly with length.
description: 5 pages, 5 figures
title: Disconjugacy and Oscillation Theory of Linear Differential and Difference Equations
Creators: name: Xu, Yuhua
Publisher: name: Utah State University
Year: 1992

description: This dissertation is both a literature survey and a presentation of new and independent results.
The survey gives an overview of disconjugacy and oscillation theory for linear differential and difference equations with an emphasis on comparing the theory of difference equations to the theory of differential equations. higher order scalar equations. Second order scalar equations, matrix equations (systems) and Hamiltonian systems are discussed. A chapter on three-term recurrences of systems is also included. Both similarities and differences between differential and difference equations are described.
The new and independent results are for Hamiltonian systems of difference equations. Those results include the representation of any solution in terms of an isotropic solution, necessary conditions for disconjugacy, the development of appropriate Riccati equations and the existence of principal solutions.
title: Dynamics of Spatial Pattern Formation: Cases of Spikes and Droplets
Creators: name: Sasaki, Yuya
Publisher: name: Utah State University
Year: 2007

description: This thesis studies the gradient system that forms spatial patterns such that the minimum distances of pairs among various points are maximized in the end. As this problem innately involves singularity issues, an extended system of the gradient system is proposed. Motivated by the spatial pattern suggested by a numerical example, this extended system is applied to a three-point problem and then to a two-point problem in a quotient space of R2 modulo a lattice.
Searching for gravitationally lensed gamma-ray bursts with their afterglows
Creators: name: Chen, Sheng-Nan
name: Wen, Xu-Dong
name: Gao, He
name: Liao, Kai
name: Liu, Liang-Duan
name: Zhao, Li-Tao
name: Li, Zheng-Xiang
name: Biesiada, Marek
name: Piórkowska-Kurpas, Aleksandra
name: Xiao, Shuo
name: Xiong, Shao-Lin
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Gamma-ray bursts (GRBs) at high redshifts are expected to be gravitationally lensed by objects of different mass scales. Besides a single recent claim, no lensed GRB has been detected so far by using the gamma-ray data only. In this paper, we suggest that the multi-band afterglow data might be an efficient way to search for lensed GRB events. Using the standard afterglow model we calculate the characteristics of the lensed afterglow lightcurves under the assumption of two popular analytic lens models: point mass and Singular Isothermal Sphere (SIS) model. In particular, when different lensed images cannot be resolved, their signals would be superimposed together with a given time delay. In this case, the X-ray afterglows are likely to contain several X-ray flares of similar width in linear scale and similar spectrum, and the optical afterglow lightcurve will show rebrightening signatures. Since the lightcurves from the image arriving later would be compressed and deformed in the logarithmic time scale, the larger time delay (i.e. the larger mass of the lens), the easier is to identify the lensing effect. We analyzed the archival data of optical afterglows and found one potential candidate of the lensed GRB (130831A) with time delay $\sim$500 s, however, observations of this event in gamma-ray and X-ray band seem not to support the lensing hypothesis. In the future, with the cooperation of the all-sky monitoring gamma-ray detectors and multi-band sky survey projects, our method proposed in this paper would be more efficient in searching for strongly lensed GRBs.
description: Accepted for publication in ApJ
Fundamentals of Responsible Research (FoRR)
Creators: name: Kniffert, Silke
Publisher: name: Zenodo
Year: 2023
Subjects: Reproducibility, Open Science, Training, Teaching, Education, research, data

description: The presentation describes the modular teaching concept in blended learning format for medical and dental doctoral students at Charité Universitätsmedizin Berlin developed by BIH QUEST. The aim of the course is to acquire fundamentals in good scientific practice and gain modern research competencies from the research idea and research question to a good scientific paper.
Il cinema in missione.
La pratica cinematografica dei missionari italiani lungo il XX secolo tra apostolato e antropologia
Creators: name: Piredda, Maria Francesca <1977>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2008
Subjects: L-ART/06 Cinema, fotografia e televisione

description: The thesis reconstructs the cinema’s experience of Italian missionaries during the XX
century in a historical-pragmatic key. Italian missionaries, who started producing movies
around the Twenties, have used cinema as a helpful instrument for religious propaganda.
They have considered the rules of the Catholic Church, the political and social context and
the audience’s expectations. Each chapter (1-4) analyses the phenomenon inside the
context constituted by the Italian colonial experiences, the relationship between Catholic
Church and images during the Evangelization, the history of cinema and the history of
missions. A specific chapter (chapter 5) is dedicated to the archives of missionary’s cinema
and to the value to be assigned to this film production (in terms of social memory and
archive’s memory). At the end of the first part, the thesis presents a proposal about the
relationship between missionary’s cinema and visual anthropology. The second part of the
thesis includes the film cards of the missionary’s movies preserved in Italy: 339 cards of
Italian movies and 149 cards of foreign movies placed in different archives and bureaus.
A no-ghost theorem for the bosonic Nappi-Witten string
Creators: name: Chen, Gang
name: Cheung, Yeuk-Kwan E.
name: Fan, Zheyong
name: Fjelstad, Jens
name: Hwang, Stephen
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We prove a no-ghost theorem for a bosonic string propagating in Nappi-Witten spacetime. This is achieved in two steps. We first demonstrate unitarity for a class of NW/U(1) modules: the norm of any state which is primary with respect to a chosen timelike U(1) is non-negative. We then show that physical states - states satisfying the Virasoro constraints - in a class of modules of an affinisation of the Nappi-Witten algebra are contained in the NW/U(1) modules. Similar to the case of strings on $AdS_3$, in order to saturate the spectrum obtained in light-cone quantization we are led to include modules with energy not bounded from below, which are related to modules with energy bounded from below by spectral flow automorphisms.
description: 24 pages, 1 figure
Piezoelectric modulus prediction using machine learning and graph neural networks
Creators: name: Hu, Jeffrey
name: Song, Yuqi
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Piezoelectric materials are widely used in all kinds of industries such as electric cigarette lighters, diesel engines and x-ray shutters. However, discovering high-performance and environmentally friendly (e.g. lead-free) piezoelectric materials is a difficult problem due to the sophisticated relationships from materials' composition/structures to the piezoelectric effect. Compared to other material properties such as formation energy, band gap, and bulk modulus, it is much more challenging to predict piezoelectric coefficients. Here, we propose a comprehensive study on designing and evaluating advanced machine learning models for predicting the piezoelectric modulus from materials' composition and/or structures. We train the prediction models based on extensive feature engineering combined with machine learning models (Random Forest and Support Vector Machines) and automated feature learning based on deep graph neural networks. Our SVM model with crystal structure feature outperform other methods. We also use this model to predict the piezoelectric coefficients for 12,680 materials from the Materials Project database and report the top 20 potential high performance piezoelectric materials.
description: 13 pages
title: The Effects of Explicit Main Idea and Summarization Instruction on Reading Comprehension of Expository Text for Alternative High School Students
Creators: name: Brown, Sally A.
Publisher: name: Utah State University
Year: 2018

description: Secondary students who struggle with reading often have deficits in the area of reading comprehension. The purpose of this study was to examine the effects of explicit main idea and summarization instruction on reading comprehension of expository text for alternative high school students. The lead researcher explicitly taught participants how to summarize expository passages. Participants were taught to generate a big idea topic of a passage, identify key words and phrases, locate or generate main ideas, and generate an oral summary. The three participants increased their performance on the researcher-developed oral summary measure and the summarization guide after receiving the reading comprehension intervention. Furthermore, participants felt they were able to learn how to summarize expository passages, perceived the intervention as effective, and that it helped their reading comprehension. Overall, results indicated that the intervention, which was explicit main idea and summarization instruction aimed to improve reading comprehension, is an effective practice for students who attend alternative high schools.