cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Gaps and Rings in Protoplanetary Disks with Realistic Thermodynamics: The Critical Role of In-Plane Radiation Transport
Creators: name: Miranda, Ryan
name: Rafikov, Roman R.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Many protoplanetary disks exhibit annular gaps in dust emission, which may be produced by planets. Simulations of planet-disk interaction aimed at interpreting these observations often treat the disk thermodynamics in an overly simplified manner, which does not properly capture the dynamics of planet-driven density waves driving gap formation. Here we explore substructure formation in disks using analytical calculations and hydrodynamical simulations that include a physically-motivated prescription for radiative effects associated with the planet-induced density waves. For the first time, our treatment accounts not only for cooling from the disk surface, but also for radiation transport along the disk midplane. We show that this in-plane cooling, with a characteristic timescale typically an order of magnitude shorter than the one due to surface cooling, plays a critical role in density wave propagation and dissipation (we provide a simple estimate of this timescale). We also show that viscosity, at the levels expected in protoplanetary disks ($α\lesssim 10^{-3}$), has a negligible effect on density wave dynamics. Using synthetic maps of dust continuum emission, we find that the multiplicity and shape of the gaps produced by planets are sensitive to the physical parameters---disk temperature, mass, and opacity---that determine the damping of density waves. Planets orbiting at $\lesssim 20$ au produce the most diverse variety of gap/ring structures, although significant variation is also found for planets at $\gtrsim 50$ au. By improving the treatment of physics governing planet-disk coupling, our results present new ways of probing the planetary interpretation of annular substructures in disks.
description: 31 pages, 16 figures, accepted for publication in ApJ
Neutron production in (alpha, n) reactions
Creators: name: Kudryavtsev, V. A.
name: Zakhary, P.
name: Easeman, B.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Neutrons can induce background events in underground experiments looking for rare processes. Neutrons in a MeV range are produced in radioactive decays via spontaneous fission and (alpha, n) reactions, and by cosmic rays. Neutron fluxes from radioactivity dominate at large depths (>1 km w. e.). A number of computer codes are available to calculate cross-sections of (alpha, n) reactions, excitation functions and neutron yields. We have used EMPIRE2.19/3.2.3 and TALYS1.9 to calculate neutron production cross-sections and branching ratios for transitions to the ground and excited states, and modified SOURCES4A to evaluate neutron yields and spectra in different materials relevant to high-sensitivity underground experiments. We report here a comparison of different models and codes with experimental data, to estimate the accuracy of these calculations.
description: 15 pages, 10 figures, 1 table, to be published in Nuclear Instruments and Methods in Physics Research A
ИННОВАЦИОННЫЕ ТЕХНОЛОГИИ ОБУЧЕНИИ ИНЖЕНЕРНОЙ И КОМПЬЮТЕРНОЙ ГРАФИКИ
Creators: name: Азимов, Т.Д.
name: Балтабаев, К. К.
Publisher: name: Zenodo
Year: 2024

description: В данной статье приводится использование информационных технологии при организации учебного процесса, применение средств компьютерной графики и инновационной технологии в процесс преподавания инженерной и компьютерной графики, а также освещена разработка и апробации учебно - методического комплекса по созданию дидактический единиц.
title: Not Every Hypermetabolic Nonfunctioning Adrenal Mass is Malignant - A Case Report of Adrenal Hemangioma
Creators: name: França, Manuela M.
Publisher: name: EURORAD
Year: 2021
Subjects: subject: Abdominal imaging
subject: Abdomen
subject: CT
subject: PET-CT
subject: Clinical Cases

description: Clinical History: A routine abdominal ultrasound study in a 49-year-old man with chronic hepatitis C (history of intravenous drugs consumption) revealed a solid and heterogeneous mass on the right adrenal gland. He was asymptomatic and the laboratory tests were normal. A Computed Tomography (CT) was performed to characterize the adrenal lesion.

description: 49 years, male
The Five Layers of Affluence
Creators: name: Theil, Henri
name: Moss, Charles B.
name: Chen, Dongling
name: Theil, Henri
name: Moss, Charles B.
name: Chen, Dongling
Publisher: name: Unknown
Year: 2003
Subjects: subject: GDP
subject: income convergence
subject: inequality
subject: Penn World Tables

description: Using the Penn World Tables for 1950-1992, we summarize the gross domestic product development of 114 non-Communist countries by means of five regions: the North, the South (“down under”), tropical America plus southwest Asia, southeast Asia, and tropical Africa plus south-central Asia. This five-region classification accounts for >85% of the inequality among the 114 countries during 1961-1986.
Spin Physics with STAR at RHIC
Creators: name: Kiryluk, J.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: STAR collected data in proton-proton collisions at sqrt(s)=200 GeV with transverse and longitudinal beam polarizations during the initial running periods in 2002--2004 at the Relativistic Heavy Ion Collider at Brookhaven National Laboratory. Results on the single transverse spin asymmetries in the production of high energy forward neutral pions and of forward charged hadrons will be presented. Data have been obtained for double longitudinal asymmetries in inclusive jet production in 2003 and 2004. These data provide sensitivity to the polarization of gluons in the proton. In the future, we aim to determine the gluon polarization over a wide kinematic range using coincidences of direct photons and jets. Furthermore, we aim to determine the polarizations of the u, bar(u), d and bar(d) quarks in the proton by measuring single longitudinal spin asymmetries in the production of weak bosons at sqrt(s) = 500$ GeV.
description: Prepared for the 32nd International Conference on High Energy Physics (ICHEP'04), 6 pages, 4 figures
Morphology of Galactic Open Clusters
Creators: name: Chen, W. P.
name: Chen, C. W.
name: Shu, C. G.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We analyzed the shapes of Galactic open clusters by the star counting technique with the 2MASS star catalog database. Morphological parameters such as the ellipticity and size have been derived via stellar density distribution, weighed by clustering probability. We find that most star clusters are elongated, even for the youngest star clusters of a few million years old, which are located near to the Galactic disk. The shapes of young star clusters must reflect the conditions in the parental molecular clouds and during the cluster formation process. As an open cluster ages, stellar dynamics cause the inner part of the cluster to circularize, but the overall radius gets larger and the stellar density becomes sparser. We discuss how internal relaxation process competes with Galactic external perturbation during cluster evolution.
description: 13 pages; 10 pages; accepted Astronomical Journal
PREVALENCE, SYMPTOMS AND SPECIFIC ASPECTS OF THE DISEASE IN CHILDREN WITH DRUG ALLERGY
Creators: name: Azimova, Dilora
Publisher: name: Zenodo
Year: 2024

description: The systematization of issues related to clinical symptoms, treatment and prevention of drug allergy is currently of great importance for practical medicine. Knowledge of the clinical manifestations of an allergic reaction to drugs, therapeutic tactics in the relief of its acute phase, organizational and preventive measures can largely reduce the likelihood of adverse outcomes of the disease. According to the Boston Collaborative Drug Surveillance Program, the prevalence of cutaneous adverse drug reactions in hospitalized patients was 2.2%, with antibiotics causing such reactions in 7% of cases.
Per Capita Income, Human Capital, and Inequality Convergence: A Latent-Variable Approach
Creators: name: Deepak, Sri Devi
name: Seale, James L.
name: Moss, Charles B.
name: Deepak, Sri Devi
name: Seale, James L.
name: Moss, Charles B.
Publisher: name: Unknown
Year: 2003
Subjects: subject: convergence
subject: human capital
subject: inequality
subject: latent variable
subject: OECD

description: The purpose of this paper is to empirically analyze determinants of income-level convergence. Specifically, the effect of human capital on per capita income is estimated for 22 countries of the organization for Economic Cooperation and Development (OECD). Additionally, the effects of openness in international trade and investment and government expenditures on per capita income are estimated and evaluated. Human capital is modeled as a latent variable, and results indicate that it is a significant factor in explaining the variation of per capita income levels among the OECD countries. Further, the entire time path of human capital is utilized to explain deviations in per capita income.
Disk-Like Structure in the Semi-Regular Pulsating Star, X Her
Creators: name: Nakashima, Jun-ichi
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The author reports a result of an interferometric observation of the semiragular pulsating star with an unusual narrow molecular line profile, X Her, in the CO J=1-0 line with the Berkeley-Illinois-Maryland array. In the CO spectrum, a double-component profile (including narrow and broad components) is seen as reported by previous observations. The narrow component consists of two spiky peaks. The spatial structure of the board component shows bipolar shape, and that of the narrow component shows an elliptical/spherical shape. The two peaks in the narrow component show a systematic difference in the integrated intensity map. The kinematical and geometrical properties of the narrow component are reminiscent of a Keplerian rotating disk with the central mass of 0.9 M_sun, though an interpretation by an expansion disk seems to be more natural. A secondary bipolar flow instead of the disk cannot be fully excluded as an interpretation of the narrow line.
description: 12 pages, 4 figues, accepted for publication in ApJ
Studies of XIST and macroH2A1.2 independent of gene silencing : subtitle a unique hybrid cell model system
Creators: name: Kwok, Edmund
Publisher: name: University of British Columbia
Year: 2009

description: X chromosome inactivation results in the transcriptional silencing of one of the two X chromosomes present in mammalian female cells. XIST expression from the inactive X (Xi), and subsequent coating of the Xi by the XIST RNA, marks the initial major observable characteristic of X-inactivation. The Xi then begins to exhibit features of heterochromatin such as gene silencing, late replication, histone modification, hypermethylation, and the recruitment of core histone variants. However, the exact mechanistic events between XIST expression and the final heterochromatic state of the Xi remain unclear. To better understand the relationship between XIST, heterochromatin, and silenced gene expression, the first goal of this study was to develop and characterize a model system suitable for examination of those features of heterochromatin which can be induced by XIST independent of gene silencing. Previous work using rodent/human hybrids (containing active human and mouse X chromosomes) that had been demethylated to reactivate XIST/Xist expression showed that while human XIST RNA fails to localize properly to the human Xi, the mouse Xist localizes normally. In both cases no silencing of X-linked genes was observed. To verify this hybrid cell system as a model for studying the effects of XIST/Xist independent of inactivation, I examined the DNA methylation, H3 acetylation, and gene expression statuses of multiple human and mouse X-linked genes in these hybrids. The results confirm both i) the reactivation of XIST/Xist due to demethylation, and ii) the lack of gene silencing despite the presence of XIST/Xist.
The Effect of Mechanical Strain on Lithium Staging in Graphene
Creators: name: Pondick, Joshua V.
name: Yazdani, Sajad
name: Yarali, Milad
name: Reed, Serrae N.
name: Hynek, David J.
name: Cha, Judy J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Lithium intercalation into graphite is the foundation for the lithium-ion battery, and the thermodynamics of the lithiation of graphitic electrodes have been heavily investigated. Intercalated lithium in bulk graphite undergoes structural ordering known as staging to minimize electrostatic repulsions within the crystal lattice. While this process is well-understood for bulk graphite, confinement effects become important at the nanoscale, which can significantly impact the electrochemistry of nanostructured electrodes. Therefore, graphene offers a model platform to study intercalation dynamics at the nanoscale by combining on-chip device fabrication and electrochemical intercalation with in situ characterization. We show that microscale mechanical strain significantly affects the formation of ordered lithium phases in graphene. In situ Raman spectroscopy of graphene microflakes mechanically constrained at the edge during lithium intercalation reveals a thickness-dependent increase of up to 1.26 V in the electrochemical potential that induces lithium staging. While the induced mechanical strain energy increases with graphene thickness to the fourth power, its magnitude is small compared to the observed increase in electrochemical energy. We hypothesize that the mechanical strain energy increases a nucleation barrier for lithium staging, greatly delaying the formation of ordered lithium phases. Our results indicate that electrode assembly can critically impact lithium staging dynamics important for cycling rates and power generation for batteries. We demonstrate strain engineering in two-dimensional nanomaterials as an approach to manipulate phase transitions and chemical reactivity.
description: 4 figures
Extending Theil's Inequality Index: Addressing Dynamic Convergence in the OECD
Creators: name: Weatherspoon, Dave D.
name: Seale, James L.
name: Moss, Charles B.
name: Weatherspoon, Dave D.
name: Seale, James L.
name: Moss, Charles B.
Publisher: name: Unknown
Year: 2003
Subjects: subject: cointegration
subject: convergence
subject: G-7
subject: inequality
subject: OECD

description: Theil’s inequality index is used to measure convergence in 14 Organization for Economic Cooperation and Development (OECD) countries in terms of per capita income, per capita government and investment expenditures, and industrial employment. Results indicate that all four variables have converged over the sample period, 1950-1988. Next, the indices of the four variables are made dynamic by using pairwise cointegration and Johansen’s I(2) multi-cointegration tests. These tests indicate that the four inequalities are cointegrated; that is, there exists a long-run equilibrium between the four inequalities of the 14 OECD countries. However, the inequality in per capita government expenditure has no effect on the G-7 equilibrium when analyzed without the Other 7.
Deep Ensemble Analysis for Imaging X-ray Polarimetry
Creators: name: Peirson, A. L.
name: Romani, R. W.
name: Marshall, H. L.
name: Steiner, J. F.
name: Baldini, L.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: We present a method for enhancing the sensitivity of X-ray telescopic observations with imaging polarimeters, with a focus on the gas pixel detectors (GPDs) to be flown on the Imaging X-ray Polarimetry Explorer (IXPE). Our analysis determines photoelectron directions, X-ray absorption points and X-ray energies for 1-9 keV event tracks, with estimates for both the statistical and model (reconstruction) uncertainties. We use a weighted maximum likelihood combination of predictions from a deep ensemble of ResNet convolutional neural networks, trained on Monte Carlo event simulations. We define a figure of merit to compare the polarization bias-variance trade-off in track reconstruction algorithms. For power-law source spectra, our method improves on the current planned IXPE analysis (and previous deep learning approaches), providing ~45% increase in effective exposure times. For individual energies, our method produces 20-30% absolute improvements in modulation factor for simulated 100% polarized events, while keeping residual systematic modulation within 1 sigma of the finite sample minimum. Absorption point location and photon energy estimates are also significantly improved. We have validated our method with sample data from real GPD detectors.
description: 18 pages, 9 figures. Accepted to Nuclear Instruments and Methods in Physics Research Section A, Sep 2020
title: Uncommon pancreatic incidentaloma
Creators: name: Santiago, Inês
Publisher: name: EURORAD
Year: 2021
Subjects: subject: Abdominal imaging
subject: Abdomen
subject: Pancreas
subject: CT
subject: Elastography
subject: MR
subject: Ultrasound
subject: Clinical Cases

description: Clinical History: A 66-year-old woman performed a thoracic non-contrast-enhanced CT after a respiratory infection to follow-up pulmonary nodules. An incidental well-circumscribed hypoattenuating pancreatic lesion was detected. An MRCP was performed to characterize it.

description: 66 years, female
The higher superconducting transition temperature T$_c$ and the functional derivative of T$_c$ with $α^2F(ω)$ for electron-phonon superconductors
Creators: name: Camargo-Martínez, J. A.
name: González-Pedreros, G. I.
name: Mesa, F.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: This work presents an analysis of the functional derivative of the superconducting transition temperature T$_c$ with respect to the electron-phonon coupling function $α^2F(ω)$ [$δT_c/δα^2$F($ω$)] and $α^2F(ω)$ spectrum of H$_3$S ($Im\bar3m$), in the pressure range where the high-T$_c$ was measured (155-225 GPa). The calculations are done in the framework of the Migdal-Eliashberg theory. We find for this electron-phonon superconductor, a correlation between the maximums of $δT_c/δα^2$F($ω$) and $α^2F(ω)$ with its higher T$_c$. We corroborate this behavior in other electron-phonon superconductors by analyzing data available in the literature, which suggests its validity in this type of superconductors. The correlation observed could be considered as a theoretical tool that in an electron-phonon superconductor, allows describing qualitatively the proximity to its highest T$_c$, and determining the optimal physical conditions (pressure, alloying or doping concentration) that lead to the superconductor reaching its highest T$_c$ possible.
description: 9 pages, 2 figures, 1 table
title: Dandy Walker Malformation
Creators: name: Zarb, Francis
Publisher: name: EURORAD
Year: 2021
Subjects: subject: Paediatric radiology
subject: Neuroradiology brain
subject: Paediatric
subject: CT
subject: MR
subject: Clinical Cases

description: Clinical History: Term baby with antenatally diagnosed schizencephaly. On postnatal ultrasound, extensive schizencephaly saw with dilatation of lateral and fourth ventricles. Patient was seen to suffer from hyperventilation and experienced seizures.

description: Term baby, male
Examining the Seyfert - Starburst Connection with Arcsecond Resolution Radio Continuum Observations
Creators: name: Laine, Seppo
name: Kotilainen, Jari K.
name: Reunanen, Juha
name: Ryder, Stuart D.
name: Beck, Rainer
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We compare the arcsecond-scale circumnuclear radio continuum properties between five Seyfert and five starburst galaxies, concentrating on the search for any structures that could imply a spatial or causal connection between the nuclear activity and a circumnuclear starburst ring. No evidence is found in the radio emission for a link between the triggering or feeding of nuclear activity and the properties of circumnuclear star formation. Conversely, there is no clear evidence of nuclear outflows or jets triggering activity in the circumnuclear rings of star formation. Interestingly, the difference in the angle between the apparent orientation of the most elongated radio emission and the orientation of the major axis of the galaxy is on average larger in Seyferts than in starburst galaxies, and Seyferts appear to have a larger physical size scale of the circumnuclear radio continuum emission. The concentration, asymmetry, and clumpiness parameters of radio continuum emission in Seyferts and starbursts are comparable, as are the radial profiles of radio continuum and near-infrared line emission. The circumnuclear star formation and supernova rates do not depend on the level of nuclear activity. The radio emission usually traces the near-infrared Br-gamma and H2 1-0 S(1) line emission on large spatial scales, but locally their distributions are different, most likely because of the effects of varying local magnetic fields and dust absorption and scattering.
description: 21 pages, 10 figures. Accepted for publication in the Astronomical Journal
title: A case of torsion in an undescended testis
Creators: name: Upadhya, Dhwani
Publisher: name: EURORAD
Year: 2021
Subjects: subject: Paediatric radiology
subject: Genital / Reproductive system male
subject: Ultrasound
subject: Ultrasound-Colour Doppler
subject: Ultrasound-Power Doppler
subject: Clinical Cases

description: Clinical History: A one-and-a-half-month-old male child was brought to the hospital with a left inguinal swelling since three days. Examination revealed a tender irreducible left inguinal swelling with empty left hemiscrotum.

description: 1 month, male
بررسی روش های تحلیل عملکردی و کاربر محور در طراحی خانه های هوشمند
Creators: name: Kheiri, Ali
name: Nemati, Simin Moein
Publisher: name: figshare
Year: 2020
Subjects: subject: 120101 Architectural Design
subject: FOS: Arts (arts, history of arts, performing arts, music)
subject: 120104 Architectural Science and Technology (incl. Acoustics, Lighting, Structure and Ecologically Sustainable Design)
subject: FOS: Civil engineering
subject: 120202 Building Science and Techniques
subject: 120304 Digital and Interaction Design
subject: 120507 Urban Analysis and Development
subject: FOS: Social and economic geography
subject: 120508 Urban Design
subject: 120599 Urban and Regional Planning not elsewhere classified
subject: 120105 Architecture Management
subject: 120201 Building Construction Management and Project Planning
subject: 120505 Regional Analysis and Development

description: خانه و فناوری هوشمند به عنوان بخش مهمی از شهره ای هو شمند، روند رو به رشدی دارد و در آینده ای نه چندان دور جزئی جدا نشد نی از زندگی افراد خواهد شد و همچ نین می تواند پاسخ مناسبی برای چالش ها و مسائل موجود در شهرها و خانه ها باشد. تصور و توسعه چنین خانه های هوشمندی فراتر از مرزهای یک فرایند طراحی ساده است. با افز ایش مطالبات کاربران، رقابت در بازار، جنبه های عملکردی، فنی، الزامات و دیگر فاکتورها و معیارها، فرآیند پیچیده و چالش برانگیزی در زمینه طراحی و بهبود خانه های هوشمند ایجاد شده ا ست و نیاز به ایجاد تصویر بهتری از خانه های هو شمند که مطابق با نیازها و مطالبات خانوارها ست وجود دارد. موفقیت در طراحی و بهبود خانه های هوشمند وابسته به در نظر گرفتن جنبه عملکردی و کاربر محور تکنولوژی های هوشمند است و مستلزم درک نیازهای واقعی و سبک زندگی متفاوت کاربران است.در این تحقیق هدف بررسی جنبه عملکر دی کاربر محور در طراحی خانه های هوشمند است. روش پژوهش در این تحقیق تو صیفی است و از طریق مطالعه ادبیات موجود و بررسی آرای نظریه پردازان و پژوهشگران و تجارب جهانی به تدقیق روش های تحلیل عملکردی کاربر محور و دیدگاه های مرتبط با این موضوع پرداخته شده است، سپس با تحلیل محتوای متن به تشریح سازماندهی شده مفاهیم مورد نظر پرداخته شده و پاسخ سوالات کلیدی در رابطه با این مضامین پاسخ داده شده است
Extent and Impact of Vegetable Oils Import Surges in Cameroon
Creators: name: Pingpoh, David Puewoh
name: Senahoun, Jean
name: Pingpoh, David Puewoh
name: Senahoun, Jean
Publisher: name: Unknown
Year: 2008
Subjects: subject: International Relations/Trade
subject: Impact
subject: vegetable oils
subject: import surge

description: The trade liberalization has resulted in massive food imports into Cameroon and this is affecting the livelihoods of the farmers, industries, traders, and service providers of the imported foods. Cameroon was selected by FAO as one of the 12 country case studies on the impact of food import surges in developing countries with the overall objective of studying and analyzing the impact of the most prevalent and frequent surge commodities (poultry meat, rice, and vegetable oils) on stakeholders. The methods and analytical approach used for this study are those for WTO Safeguards investigation as outlined in the FAO working document, “Extent and impact of food import surges in developing countries: An analytical approach and research methodology for country case studies”. Information for the study was obtained from both secondary sources and from primary sources (stakeholders’ survey). Quantitatively and qualitatively, import surges occurred and are occurring for vegetable oils in Cameroon. There were relatively low levels of these commodities imports into Cameroon until 1999-2004 at which time the import of vegetable oils increased by 366.3 %. Palm oil accounted for 55 % of vegetable oils imports. Domestic and exogenous factors contributed to the commodity import surge in Cameroon. A potentially negative correlation between the movements in import volumes and movement in domestic price, per unit import value, domestic production, and profits, key injury indicators were noted. Factors other than imports contributed to the injuries. Cameroon’s policy responses to the surges and injuries were its main trade policy instrument, the tariff, creation of ad hoc committee to determine the level of production shortages and quotas to be imported and instituted reference price.
Plastic Scintillation Detectors for Time-of-Flight Mass Measurements
Creators: name: Wang, Kailong
name: Estrade, Alfredo
name: Neupane, Shree
name: Barber, Miles
name: Famiano, Michael
name: Ginter, Tom
name: McClain, David
name: Nepal, Neerajan
name: Pereira, Jorge
name: Schatz, Hendrik
name: Zimba, George
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Fast timing detectors are an essential element in the experimental setup for time-of-flight (ToF) mass measurements of unstable nuclei. We have upgraded the scintillator detectors used in experiments at the National Superconducting Cyclotron Laboratory (NSCL) by increasing the number of photomultiplier tubes that read out their light signals to four per detector, and characterized them in a test experiment with $^{48}$Ca beam at the NSCL. The new detectors achieved a time resolution ($σ$) of 7.5 ps. We systematically investigated different factors that affect their timing performance. In addition, we evaluated the ability of positioning the hitting points on the scintillator using the timing information and obtained a resolution ($σ$) below 1 mm for well-defined beam spots.
description: 11 pages, 10 figures, submitted to NIMA
Typification and economic analysis of beef-producing farms in Spain
Creators: name: Robles, Rita Robles
name: De La Puente, Telesforo
name: Moran, J.
name: Juan, A.
name: Robles, Rita Robles
name: De La Puente, Telesforo
name: Moran, J.
name: Juan, A.
Publisher: name: Unknown
Year: 2008
Subjects: subject: Livestock Production/Industries
subject: Cluster Analysis
subject: extensive beef producing systems
subject: economic accounts

description: In spite of different economic agents’ interests, as well as the Administration’s effort in promoting extensive beef-producing systems over the last years, this kind of activity still hasn’t reached the desirable levels, being necessary that farmers perceive an appropriate benefit which supports their activity. In this sense, this paper, using the data obtained by a statistical survey representing all the extensive beef-producing farms existing in Castile and Leon (Spain), aims to analyze the economical results of extensive beef-producing farms, previously classified in representative groups according a quantitative method. The study is a preliminary research which intends to generate additional knowledge about the role of the different variables which make part of the economic results, and takes part of a research project financed by Castile and Leon Regional Governments, Education and Culture Council, through the annual program to support research projects (Order EDU/1143/2004).
Application of Genetic Programming to High Energy Physics Event Selection
Creators: name: The FOCUS Collaboration
name: Link, J. M.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We review genetic programming principles, their application to FOCUS data samples, and use the method to study the doubly Cabibbo suppressed decay D+ -> K+ pi+ pi- relative to its Cabibbo favored counterpart, D+ -> K- pi+ pi+. We find that this technique is able to improve upon more traditional analysis methods. To our knowledge, this is the first application of the genetic programming technique to High Energy Physics data.
description: 39 pages
Structural and optical properties of single- and few-layer magnetic semiconductor CrPS4
Creators: name: Lee, Jinhwan
name: Ko, Taeg Yeoung
name: Kim, Jung Hwa
name: Bark, Hunyoung
name: Kang, Byunggil
name: Jung, Soon-Gil
name: Park, Tuson
name: Lee, Zonghoon
name: Ryu, Sunmin
name: Lee, Changgu
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Atomically thin binary 2-dimensional (2D) semiconductors exhibit diverse physical properties depending on their composition, structure and thickness. By adding another element in those materials, which will lead to formation of ternary 2D materials, the property and structure would greatly change and significantly expanded applications could be explored. In this work, we report structural and optical properties of atomically thin chromium thiophosphate (CrPS4), a ternary antiferromagnetic semiconductor. Its structural details were revealed by X-ray and electron diffractions. Transmission electron microscopy showed that preferentially-cleaved edges are parallel to diagonal Cr atom rows, which readily identified their crystallographic orientations. Strong in-plane optical anisotropy induced birefringence that also enabled efficient determination of crystallographic orientation using polarized microscopy. The lattice vibrations were probed by Raman spectroscopy for the first time and exhibited significant dependence on thickness of crystals exfoliated down to single layer. Optical absorption determined by reflectance contrast was dominated by d-d type transitions localized at Cr3+ ions, which was also responsible for the major photoluminescence peak at 1.31 eV. The spectral features in the absorption and emission spectra exhibited noticeable thickness-dependence and hinted a high photochemical activity for single layer CrPS4. The current structural and optical investigation will provide a firm basis for future study and application of this novel magnetic semiconductor.
description: 32 pages, 5 figures
How "efficient" are dairy farms in mountain areas?
Creators: name: Ortner, Karl M.
name: Ortner, Karl M.
Publisher: name: Unknown
Year: 2008
Subjects: subject: Farm Management
subject: Livestock Production/Industries
subject: DEA
subject: efficiency
subject: dairy farms

description: Pure Technical Efficiency scores of Austrian dairy farms are estimated econometrically on the basis of data envelopment analysis and bootstrapping. In a second stage, using the same assumptions on the distribution of error terms, the distances of farms to their production possibility curve are estimated as functions of farm attributes. Since some of these attributes refer to natural conditions which are more or less unfavourable, the farms in the sample are facing individual frontiers. The distinction between sectorial and individual frontiers gives rise to a distinction between “overall” and “firm-level” efficiency. Using overall efficiency for the calculation of possible savings from a move to the frontier will overestimate these savings and underestimate the efficiency of a farm relative to the conditions in which it operates.
Long-term variations of quasi-trapped and trapped electrons in the inner radiation belt observed by DEMETER and SAMPEX
Creators: name: Zhang, Kun
name: Li, Xinlin
name: Xiang, Zheng
name: Khoo, Leng Ying
name: Zhao, Hong
name: Looper, Mark D.
name: Temerin, Michael A.
name: Sauvaud, Jean-André
Publisher: name: arXiv
Year: 2020
Subjects: subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: Electrons in the Earth's radiation belts can be categorized into three populations: precipitating, quasi-trapped and trapped. We use data from the DEMETER and SAMPEX missions and from ground-based neutron monitors (NM) and sunspot observations to investigate the long-term variation of quasi-trapped and trapped sub-MeV electrons on different L shells in the inner belt. DEMETER and SAMPEX measurements span over 17 years and show that at $L \leq 1.14$ the electron flux is anti-correlated with sunspot number, but proportional to the cosmic ray intensity represented by NM count rates, which suggests that electrons at the inner edge of the inner belt are produced by Cosmic Ray Albedo Neutron Decay (CRAND). The solar cycle variation of cosmic rays increased the electron flux at $L \leq 1.14$ by a factor of two from solar maximum at 2001 to solar minimum at 2009. At $L \ge 1.2$, both quasi-trapped and trapped electrons are enhanced during geomagnetic storms and decay to a background level during extended quiet times. At $L>2$, quasi-trapped electrons resemble trapped electrons, with correlation coefficients as high as 0.97, indicating that pitch angle scattering is the dominant process in this region.
Die Apologie und der Libellus Justins d. M.
Creators: name: Gansyniec, R.
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 18 (1920): Oriens christianus, Band 18/19
title: MRI findings in Lyme neuroborreliosis
Creators: name: Paternain Nuin, Alberto
Publisher: name: EURORAD
Year: 2021
Subjects: subject: Neuroradiology
subject: Neuroradiology brain
subject: Neuroradiology spine
subject: MR
subject: Diagnostic procedure
subject: Infection
subject: Inflammation
subject: Clinical Cases

description: Clinical History: A 22-year-old woman was admitted to the emergency room with sudden right peripheral facial palsy. She also referred to progressive and ascending burning pain in the spine for two weeks. After a trip to the mountains one month before, she had developed an erythematous skin lesion that resolved spontaneously. 

description: 22 years, female
Reasons for developing or exiting business in the primary sector - A study of milk farmers in central-west Sweden
Creators: name: Hansson, Helena
name: Johnsson, Viktor
name: Widnersson, Oskar
name: Hansson, Helena
name: Johnsson, Viktor
name: Widnersson, Oskar
Publisher: name: Unknown
Year: 2008
Subjects: subject: Farm Management
subject: Livestock Production/Industries
subject: farm management
subject: rural development
subject: strategic decision making

description: The aim of this research was to study empirically what characterize farms and farmers that choose to develop the milk production at their farms. The background was that several farms have exited milk production, which threatens both goals about rural development and also the activities of the dairies. Based on survey data from 313 milk producing farms in central-west Sweden and structural equation analysis, it was concluded that farms that are accustomed to changes will develop their milk production further. The results also showed that farms which are more dependent on their milk production are more likely to develop their milk production. Furthermore, it was indicated that satisfactory supply of qualified labour stimulates development of milk production, as do location of the farm at a longer distance from common facilities. The results also showed that the farmers who develop their farms have more positive expectations about profitability in milk production and are also less risk averse. Finally, the results indicated that information through trade magazines and similar oneway communication channels are used by those who develop their milk production and that farmers who develop their milk production are those who take actions to evaluate their strategic decisions more seriously.
Съчетана лъчехимиотерапия при локално авансирал III стадий недребноклетъчен карцином на бял дроб – съвременни стандарти.
Creators: name: Yordanov, Kaloyan
name: Jeliazko Arabadjiev
Publisher: name: figshare
Year: 2020
Subjects: subject: 111201 Cancer Cell Biology
subject: FOS: Clinical medicine
subject: 111202 Cancer Diagnosis
subject: 111203 Cancer Genetics
subject: 111204 Cancer Therapy (excl. Chemotherapy and Radiation Therapy)
subject: 111205 Chemotherapy
subject: Health Care
subject: 111299 Oncology and Carcinogenesis not elsewhere classified
subject: 111208 Radiation Therapy

description: Статията разглежда новият стандарт на съчетана химиолъчетерапия при III стадий на локално авансирал НДРБД, който при PDL1 над 1% и отговор на лечението може да остане на поддържащо приложение на durvalumab.
Population Dynamics in Spatially Heterogeneous Systems with Drift: the generalized contact process
Creators: name: Joo, Jaewook
name: Lebowitz, Joel L.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Populations and Evolution (q-bio.PE)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: We investigate the time evolution and stationary states of a stochastic, spatially discrete, population model (contact process) with spatial heterogeneity and imposed drift (wind) in one- and two-dimensions. We consider in particular a situation in which space is divided into two regions: an oasis and a desert (low and high death rates). Carrying out computer simulations we find that the population in the (quasi) stationary state will be zero, localized, or delocalized, depending on the values of the drift and other parameters. The phase diagram is similar to that obtained by Nelson and coworkers from a deterministic, spatially continuous model of a bacterial population undergoing convection in a heterogeneous medium.
description: 8 papes, 12 figures
The Completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: Baryon acoustic oscillations with Lyman-$α$ forests
Creators: name: Bourboux, Hélion du Mas des
name: Rich, James
name: Font-Ribera, Andreu
name: Agathe, Victoria de Sainte
name: Farr, James
name: Etourneau, Thomas
name: Goff, Jean-Marc Le
name: Cuceu, Andrei
name: Balland, Christophe
name: Bautista, Julian E.
name: Blomqvist, Michael
name: Brinkmann, Jonathan
name: Brownstein, Joel R.
name: Chabanier, Solène
name: Chaussidon, Edmond
name: Dawson, Kyle
name: González-Morales, Alma X.
name: Guy, Julien
name: Lyke, Brad W.
name: de la Macorra, Axel
name: Mueller, Eva-Maria
name: Myers, Adam D.
name: Nitschelm, Christian
name: Gutiérrez, Andrea Muñoz
name: Palanque-Delabrouille, Nathalie
name: Parker, James
name: Percival, Will J.
name: Pérez-Ràfols, Ignasi
name: Petitjean, Patrick
name: Pieri, Matthew M.
name: Ravoux, Corentin
name: Rossi, Graziano
name: Schneider, Donald P.
name: Seo, Hee-Jong
name: Slosar, Anže
name: Stermer, Julianna
name: Vivek, M.
name: Yèche, Christophe
name: Youles, Samantha
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present a measurement of baryonic acoustic oscillations (BAO) from Lyman-$α$ (Ly$α$) absorption and quasars at an effective redshift $z=2.33$ using the complete extended Baryonic Oscillation Spectroscopic Survey (eBOSS). The sixteenth and final eBOSS data release (SDSS DR16) contains all data from eBOSS and its predecessor, the Baryonic Oscillation Spectroscopic Survey (BOSS), providing $210,005$ quasars with $z_{q}>2.10$ that are used to measure Ly$α$ absorption. We measure the BAO scale both in the auto-correlation of Ly$α$ absorption and in its cross correlation with $341,468$ quasars with redshift $z_{q}>1.77$. Apart from the statistical gain from new quasars and deeper observations, the main improvements over previous work come from more accurate modeling of physical and instrumental correlations and the use of new sets of mock data. Combining the BAO measurement from the auto- and cross-correlation yields the constraints of the two ratios $D_{H}(z=2.33)/r_{d} = 8.99 \pm 0.19$ and $D_{M}(z=2.33)/r_{d} = 37.5 \pm 1.1$, where the error bars are statistical. These results are within $1.5σ$ of the prediction of the flat-$Λ$CDM cosmology of Planck~(2016). The analysis code, \texttt{picca}, the catalog of the flux-transmission field measurements, and the $Δχ^{2}$ surfaces are publicly available.
description: 37 pages, 23 figures, Matches the published version by ApJ
УЛУЧШЕНИЕ ДИАГНОСТИКИ ДЕТЕЙ С ПОВЫШЕННОЙ ЧУВСТВИТЕЛЬНОСТЬЮ К ЛЕКАРСТВЕННЫМ СРЕДСТВАМ
Creators: name: Азимова, Дилора
Publisher: name: Zenodo
Year: 2024

description: Диагностика ЛА является сложной клинической проблемой. Спектр доступных для клинических лабораторий тестов in vitro весьма ограничен. Считают, что при характерном аллергологическом анамнезе и типичной клинической картине установить диагноз лекарственной аллергии нетрудно. Однако, как уже указывалось, в повседневной практике постановка диагноза усложняется тем, что аллергические, токсические и псевдоаллергические реакции, а также некоторые инфекционные заболевания имеют сходные клинические проявления. Особенно это усугубляется в случаях, когда ЛА развивается на фоне уже имеющихся аллергических заболеваний, что проявляется лишь усилением их симптоматики. Не меньше трудностей возникает при поздних проявлениях ЛА, когда трудно проследить связь между приемом лекарственных средств и возникновением симптомов заболевания. Институтом иммунологии и клинической аллергологии (ИАКИ, г. Москва) была предложена комплексная поэтапная диагностика ЛА, которую реально можно внедрить в учреждениях здравоохранения.
5D cooling and nonlinear dynamics of an optically levitated nanodumbbell
Creators: name: Bang, Jaehoon
name: Seberson, Troy
name: Ju, Peng
name: Ahn, Jonghoon
name: Xu, Zhujing
name: Gao, Xingyu
name: Robicheaux, Francis
name: Li, Tongcang
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Optically levitated nonspherical particles in vacuum are excellent candidates for torque sensing, rotational quantum mechanics, high-frequency gravitational wave detection, and multiple other applications. Many potential applications, such as detecting the Casimir torque near a birefringent surface, require simultaneous cooling of both the center-of-mass motion and the torsional vibration (or rotation) of a nonspherical nanoparticle. Here we report the first 5D cooling of a levitated nanoparticle. We cool the 3 center-of-mass motion modes and 2 torsional vibration modes of a levitated nanodumbbell in a linearly-polarized laser simultaneously. The only uncooled rigid-body degree of freedom is the rotation of the nanodumbbell around its long axis. This free rotation mode does not couple to the optical tweezers directly. Surprisingly, we observe that it strongly affects the torsional vibrations of the nanodumbbell. This work deepens our understanding of the nonlinear dynamics and rotation coupling of a levitated nanoparticle and paves the way towards full quantum control of its motion.
description: 5 pages, 4 figures
Concentric Black Rings
Creators: name: Gauntlett, Jerome P.
name: Gutowski, Jan B.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present new supersymmetric solutions of five-dimensional minimal supergravity that describe concentric black rings with an optional black hole at the common centre. Configurations of two black rings are found which have the same conserved charges as a single rotating black hole; these black rings can have a total horizon area less than, equal to, or greater than the black hole with the same charges. A numerical investigation of these particular black ring solutions suggests that they do not have closed timelike curves.
description: 7 pages, minor alterations, typos corrected. Version to be published in PRD
title: A false diagnosis of focal nodular hyperplasia at gadoxetic acid-enhanced hepatobiliary phase MRI
Creators: name: Harth, Charlotte
Publisher: name: EURORAD
Year: 2021
Subjects: subject: Abdominal imaging
subject: Liver
subject: MR
subject: Clinical Cases

description: Clinical History: A 68-year-old Caucasian woman, with a history of breast cancer, was referred to the radiology department for a follow-up abdominal ultrasonography. 

description: 68 years, female
More on the Asymmetric Infinite Square Well: Energy Eigenstates with Zero Curvature
Creators: name: Gilbert, L. P.
name: Belloni, M.
name: Doncheski, M. A.
name: Robinett, R. W.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We extend the standard treatment of the asymmetric infinite square well to include solutions that have zero curvature over part of the well. This type of solution, both within the specific context of the asymmetric infinite square well and within the broader context of bound states of arbitrary piecewise-constant potential energy functions, is not often discussed as part of quantum mechanics texts at any level. We begin by outlining the general mathematical condition in one-dimensional time-independent quantum mechanics for a bound-state wave function to have zero curvature over an extended region of space and still be a valid wave function. We then briefly review the standard asymmetric infinite square well solutions, focusing on zero-curvature solutions as represented by energy eigenstates in position and momentum space.
description: 17 pages, 5 .eps figures