cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Diagnosing FUor-like Sources: The Parameter Space of Viscously Heated Disks in the Optical and Near-IR
Creators: name: Liu, Hanpu
name: Herczeg, Gregory J.
name: Johnstone, Doug
name: Contreras-Peña, Carlos
name: Lee, Jeong-Eun
name: Yang, Haifeng
name: Zhou, Xingyu
name: Yoon, Sung-Yong
name: Lee, Ho-Gyu
name: Kunitomo, Masanobu
name: Jose, Jessy
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: FU Ori type objects (FUors) are decades-long outbursts of accretion onto young stars that are strong enough to viscously heat disks so that the disk outshines the central star. We construct models for FUor objects by calculating emission components from a steady-state viscous accretion disk, a passively-heated dusty disk, magnetospheric accretion columns, and the stellar photosphere. We explore the parameter space of the accretion rate and stellar mass to investigate implications on the optical and near-infrared spectral energy distribution and spectral lines. The models are validated by fitting to multi-wavelength photometry of three confirmed FUor objects, FU Ori, V883 Ori and HBC 722 and then comparing the predicted spectrum to observed optical and infrared spectra. The brightness ratio between the viscous disk and the stellar photosphere, $η$, provides an important guide for identifying viscous accretion disks, with $η=1$ ("transition line") and $η=5$ ("sufficient dominance line") marking turning points in diagnostics, evaluated here in the near-infrared. These turning points indicate the emergence and complete development of FUor-characteristic strong CO absorption, weak metallic absorption, the triangular spectral continuum shape in the $H$-band, and location in color-magnitude diagrams. Lower stellar mass $M_*$ and higher accretion rate $\dot{M}$ lead to larger $η$; for $M_*=0.3~{\rm M_\odot}$, $η=1$ corresponds to $\dot{M}=2\times10^{-7}~{\rm M_\odot}/$yr and $η=5$ to $\dot{M}=6\times10^{-7}~{\rm M_\odot}/$yr. The sufficient dominance line also coincides with the expected accretion rate where accreting material directly reaches the star. We discuss implications of the models on extinction diagnostics, FUor brightening timescales, viscous disks during initial protostellar growth, and eruptive young stellar objects (YSO) associated with FUors.
description: 32 pages, 23 figures, accepted for publication in ApJ
A wide QRS/T angle in bundle branch blocks is associated with increased risk for coronary heart disease and all-cause mortality in the Atherosclerosis Risk in Communities (ARIC) Study
Creators: name: Tereshchenko, Larisa
name: Rautaharju, Pentti M.
name: Prineas, Ronald J.
name: Soliman, Elsayed Z.
name: Whitsel, Eric A.
name: Zhang, Zhu-ming
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2015

description: — Repolarization abnormality in bundle branch blocks (BBB) is traditionally ignored. This study evaluated the prognostic value of QRS/T angle for mortality in the presence and absence of BBB.
Field-Effect Transistors Based on Few-Layered alpha-MoTe_2
Creators: name: Pradhan, Nihar R.
name: Rhodes, Daniel
name: Feng, Simin
name: Xin, Yan
name: Memaran, Shahriar
name: Moon, Byoung-Hee
name: Terrones, Humberto
name: Terrones, Mauricio
name: Balicas, Luis
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Here we report the properties of field-effect transistors based on few layers of chemical vapor transport grown alpha- MoTe_2 crystals mechanically exfoliated onto SiO_2. We performed field-effect and Hall mobility measurements, as well as Raman scattering and transmission electron microscopy. In contrast to both MoS_2 and MoSe_2, our MoTe_2 field-effect transistors (FETs) are observed to be hole-doped, displaying on/off ratios surpassing 106 and typical sub-threshold swings of ~ 140 mV per decade. Both field-effect and Hall mobilities indicate maximum values approaching or surpassing 10 cm^2/Vs which are comparable to figures previously reported for single or bi-layered MoS_2 and/or for MoSe_2 exfoliated onto SiO_2 at room temperature and without the use of dielectric engineering. Raman scattering reveals sharp modes in agreement with previous reports, whose frequencies are found to display little or no dependence on the number of layers. Given that both MoS_2 is electron doped, the stacking of MoTe_2 onto MoS_2 could produce ambipolar field-effect transistors and a gap modulation. Although the overall electronic performance of MoTe_2 is comparable to those of MoS_2 and MoSe_2, the heavier element Te should lead to a stronger spin orbit-coupling and possibly to concomitantly longer decoherence times for exciton valley and spin indexes.
description: 29 pages, 7 figure, ACS Nano (in press)
Egfr inhibition in a pretreated sacral chordoma: a rolefor erlotinib? Case report and a brief review of literature
Creators: name: Trapani, Dario
name: Conforti, Fabio
name: De Pas, Tommaso
Publisher: name: Universita' degli Studi di Salerno
Year: 2017
Subjects: Chordoma
Erlotinib
Imatinib refractory
Sacral tumor

description: We describe the case of a 69-year old male with an EGFR- positive Imatinib refractory sacral chordoma with synchronous lung metastases, treated with erlotinib, a first- generation EGFR inhibitor. After disease progression following firstline Imatinib and a combination therapy with everolimus plus metformin, we made a challenge with an EGFR tyrosine kinase inhibitor (EGFR TKI), erlotinib. Despite a brief clinical benefit, the patient presented a rapid clinical deterioration leading to death, after 8 weeks of treatment.
COMPTEL data analysis using GammaLib and ctools
Creators: name: Knödlseder, Jürgen
name: Collmar, Werner
name: Jarry, Manon
name: McConnell, Mark
Publisher: name: arXiv
Year: 2022
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: More than 20 years after the end of NASA's Compton Gamma-Ray Observatory mission, the data collected by its Imaging Compton Telescope (COMPTEL) still provide the most comprehensive and deepest view of our Universe in MeV gamma rays. While most of the COMPTEL data are archived at NASA's High Energy Astrophysics Science Archive Research Center (HEASARC), the absence of any publicly available software for their analysis means the data cannot benefit from the scientific advances made in the field of gamma-ray astronomy at higher energies. To make this unique treasure again accessible for science, we developed open source software that enables a comprehensive and modern analysis of the archived COMPTEL telescope data. Our software is based on a dedicated plug-in to the GammaLib library, a community-developed toolbox for the analysis of astronomical gamma-ray data. We implemented high-level scripts for building science analysis workflows in ctools, a community-developed gamma-ray astronomy science analysis software framework. We describe the implementation of our software and provide the underlying algorithms. Using data from the HEASARC archive, we demonstrate that our software reproduces derived data products that were obtained in the past using the proprietary COMPTEL software. We furthermore demonstrate that our software reproduces COMPTEL science results published in the literature. This brings the COMPTEL telescope data back into life, allowing them to benefit from recent advances in gamma-ray astronomy, and gives the community a means to unveil its still hidden treasures.
description: 31 pages, 23 figures
Kolmogorov complexity and the geometry of Brownian motion
Creators: name: Fouche, Willem L.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Computational Complexity (cs.CC)
subject: FOS: Computer and information sciences

description: In this paper, we continue the study of the geometry of Brownian motions which are encoded by Kolmogorov-Chaitin random reals (complex oscillations). We unfold Kolmogorov-Chaitin complexity in the context of Brownian motion and specifically to phenomena emerging from the random geometric patterns generated by a Brownian motion.
description: Paper accepted by Mathematical Structures in Computer Science
title: Imaging of complications related to neurosurgical implants
Creators: name: Ho, Chi Long
Publisher: name: European Congress of Radiology
Year: 2017
Subjects: subject: Emergency
subject: Neuroradiology brain
subject: Head and neck
subject: CT
subject: Computer Applications-Detection, diagnosis
subject: Complications
subject: Acute
subject: Abscess
subject: Haemorrhage

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: 1. We review the imaging findings of common complications which arise following intracranial implants in a teaching hospital in Singapore. 2.Provide an in-depth analysis valuable to both general radiologists and...
The Rapid Rotation of the Strongly Magnetic Ultramassive White Dwarf EGGR 156
Creators: name: Williams, K. A.
name: Hermes, J. J.
name: Vanderbosch, Z. P.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The distribution of white dwarf rotation periods provides a means for constraining angular momentum evolution during the late stages of stellar evolution, as well as insight into the physics and remnants of double degenerate mergers. Although the rotational distribution of low mass white dwarfs is relatively well constrained via asteroseismology, that of high mass white dwarfs, which can arise from either intermediate mass stellar evolution or white dwarf mergers, is not. Photometric variability in white dwarfs due to rotation of a spotted star is rapidly increasing the sample size of high mass white dwarfs with measured rotation periods. We present the discovery of 22.4 minute photometric variability in the lightcurve of EGGR 156, a strongly magnetic, ultramassive white dwarf. We interpret this variability as rapid rotation, and our data suggest that EGGR 156 is the remnant of a double degenerate merger. Finally, we calculate the rate of period change in rapidly rotating, massive, magnetic WDs due to magnetic dipole radiation. In many cases, including EGGR 156, the period change is not currently detectable over reasonable timescales, indicating that these WDs could be very precise clocks. For the most highly magnetic, rapidly rotating massive WDs, such as ZTF J1901+1450 and RE J0317$-$853, the period change should be detectable and may help constrain the structure and evolution of these exotic white dwarfs.
description: Replaced to correct two typos in equations on page 12. No calculations or conclusions affected. 15 pages, 5 figures, accepted for publication in the Astronomical Journal
Normal prehospital electrocardiography is linked to long-term survival in patients presenting to the emergency department with symptoms of acute coronary syndrome
Creators: name: Sommargren, Claire E.
name: Asafu-Adjei, Josephine K.
name: Drew, Barbara J.
name: Zègre-Hemsey, Jessica K.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2015

description: We studied 735 patients who activated “911” for chest pain and/or anginal equivalent symptoms and received 12-lead ECG monitoring with specialized ischemia monitoring software in the ambulance. Prehospital electrocardiograms (PH ECG) were analyzed to determine the proportion of patients who present with completely normal PH ECG findings (absence of ischemia/infarction, arrhythmia, or any other abnormality) and to compare outcomes amongst patients with and without any PH ECG abnormality.
Some observations on the subfibrillar structure of collagen fibrils as noted during treatment with NKISK and cathepsin G with mechanical agitation
Creators: name: Dahners, L. E.
name: Weinhold, P. S.
name: Lee, N. Y.
name: Zhao, T.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2011

description: We observed the structure of collagen fibrils in rat tail tendons after treatment with NKISK and cathepsin G. NKISK is a pentapeptide that has been previously shown to bind fibronectin, while cathepsin G is a serine protease that cleaves fibronectin but not type I collagen. In tendons treated with NKISK, fibrils were seen to extensively dissociate into smaller-diameter subfibrils. These subfibrils were homogeneous in diameter with an average diameter of 26.3 ± 5.8 nm. Similar, although less extensive, dissociation into subfibrils was found in tendons treated with cathepsin G. The average diameter of these subfibrils was 24.8 ± 4.9 nm. The ability of NKISK and cathepsin G to release subfibrils at physiological pH without harsh denaturants may enhance the study of the subfibrillar structure of collagen fibrils.
The ERIGrid 2.0 project
Creators: name: Strasser, Thomas I.
Publisher: name: Zenodo
Year: 2022
Subjects: Integrated Research Infrastructure
Approaches for Smart Energy Technologies
Free Laboratory Access
Presentation
European Union (EU)
H2020
Project
ERIGrid 2.0
GA 870620

description: Brief overview of the ERIGrid 2.0 activities and access opportunities by coordinator Thomas Strasser
title: Cone-beam computed tomography as an instrument of intraoperative navigation by radiologist during surgical manipulations on maxillofacial area
Creators: name: Student, Volodymyr
Publisher: name: European Congress of Radiology
Year: 2017
Subjects: subject: Head and neck
subject: Computer applications
subject: Bones
subject: Cone beam CT
subject: Intraoperative
subject: Education
subject: Surgery
subject: Education and training

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Cone-beam computed tomography (CBCT) in dentistry was first introduced in 1988 (Mozzo, Arai et al.). The CBCT is deprived of the main drawback of pantographs (OPGs) - a distortion ( Fig. 1 ) - that can reach 20%, and as a result, sensitivity and...
Management of Febrile Neutropenia in a Patient With Acute Leukemia
Creators: name: Albrecht, Tara A.
name: Bryant, Ashley Leak
name: Walton, AnnMarie
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014

description: Hematologic cancers comprise an aggregate of several different cancers, such as leukemia, lymphoma, and multiple myeloma. There are more than 100,000 new cases of these hematologic cancers in the United States annually, and more than 50,000 children and adults die from these cancers.1,2
title: Investigating the petrology and microstructures of achondrite meteorites
Creators: name: Davies, Faye
Publisher: name: University of Glasgow
Year: 2023

description: Achondrite meteorites provide us with important information about differentiated planetary bodies of the early Solar System, as these meteorites have been melted and recrystallised to various degrees throughout their geological history with the source of these meteorites being the outer shell of differentiated parent bodies. The textural relationships within achondrite meteorites provide important evidence of the formation, size, evolution and destruction of the Solar System’s first planetesimals. The focus of this research is using a variety of achondrite meteorites similar to rocks which are found on Earth. Using a range of SEM techniques such as EDS, EBSD and EMPA to observe the crystallography of each meteorite and study the deformation structures and relationship between the grains to provide an insight into the history of the planetary bodies from which each of these meteorites originated. The key findings from this research were that ureilites have olivine grains that display Mgrich reduction rims with Fe-metal blebs surrounding Mg-poor cores as well as iron veining throughout the samples. These textures are interpreted as a redox reaction where carbon acts as a catalyst reacting with Fe within the olivine grains forming Mg-rich rims and Fe-metal veining throughout the samples. The degree to which the reaction has taken place varies between the samples based on the carbon and iron percentages observed as a decrease in carbon percentage resulting in an increase in the iron percentage of the sample for each ureilite studied within the research. Anomalous achondrite MIL 090356 displays similar chemical reactions to the ureilites and these are interpreted to be caused by an impact event on the parent body. While iron veining is still present on MIL 090356, the catalyst for the reaction is sulphur infiltration within the sample rather than carbon as was the case for the ureilites. Evidence for similar Sulphur catalysed chemical reactions have also been suggested for brachinites which MIL 090356 is closely affiliated. This provides evidence that similar chemical processes occurred on more than one planetary body beyond 1 AU from the Sun within the same outer region of the solar nebula. The aubrite Cumberland Falls which formed within the inner 1 AU of the early Solar System contains chondritic material including barred olivine-pyroxene chondrules, this chondritic material is classified as enstatite chondrite. These enstatite clasts have not been found before and add to the suite of ordinary chondrite clasts and forsterite chondrite clasts that have been described previously. 2 Together these chondritic clasts provide evidence of complete mixing of chondritic material within the inner Solar System. This research has provided an insight into processes of other planetary bodies and their formation as well as the earliest periods in the solar system history allowing for a more in-depth complete picture of the behaviour of rocky worlds in the solar system.
title: The effect of antibiotic prophylaxis for acute pelvic inflammatory disease after hysterosalpingography: a retrospective cohort study
Creators: name: Li, Haoming
Publisher: name: European Congress of Radiology
Year: 2017
Subjects: subject: Genital / Reproductive system female
subject: Management
subject: Fluoroscopy
subject: Hysterosalpingography
subject: Infection

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Hysterosalpingography (HSG) has been widely used for the initial evaluation of the tubal infertility disorders for more than one century. The common complications of HSG include post-procedural pain, vaginal bleeding, infection, venous and lymphatic...
title: Vascular emergencies in clinical cases
Creators: name: dkhil, oussama
Publisher: name: European Congress of Radiology
Year: 2017
Subjects: subject: Vascular
subject: Emergency
subject: Cardiovascular system
subject: CT-Angiography
subject: Catheter arteriography
subject: Digital radiography
subject: Diagnostic procedure
subject: Education
subject: eLearning
subject: Dissection
subject: Aneurysms
subject: Ischaemia / Infarction

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: provide an educational tool to make the radio-clinical approach to vascular emergencies easier. illustrate the primordial role of imaging in the diagnosis and management of vascular emergencies. Discuss the most common post-traumatic vascular...
GJ 3090 b: one of the most favourable mini-Neptune for atmospheric characterisation
Creators: name: Almenara, J. M.
name: Bonfils, X.
name: Otegi, J. F.
name: Attia, O.
name: Turbet, M.
name: Astudillo-Defru, N.
name: Collins, K. A.
name: Polanski, A. S.
name: Bourrier, V.
name: Hellier, C.
name: Ziegler, C.
name: Bouchy, F.
name: Briceño, C.
name: Charbonneau, D.
name: Cointepas, M.
name: Collins, K. I.
name: Crossfield, I.
name: Delfosse, X.
name: Díaz, R. F.
name: Dorn, C.
name: Doty, J. P.
name: Forveille, T.
name: Gaisné, G.
name: Gan, T.
name: Helled, R.
name: Hesse, K.
name: Jenkins, J. M.
name: Jensen, E. L. N.
name: Latham, D. W.
name: Law, N.
name: Mann, A. W.
name: Mao, S.
name: McLean, B.
name: Murgas, F.
name: Myers, G.
name: Seager, S.
name: Shporer, A.
name: Tan, T. G.
name: Twicken, J. D.
name: Winn, J.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We report the detection of GJ 3090 b (TOI-177.01), a mini-Neptune on a 2.9-day orbit transiting a bright (K = 7.3 mag) M2 dwarf located at 22 pc. The planet was identified by the Transiting Exoplanet Survey Satellite and was confirmed with the High Accuracy Radial velocity Planet Searcher radial velocities. Seeing-limited photometry and speckle imaging rule out nearby eclipsing binaries. Additional transits were observed with the LCOGT, Spitzer, and ExTrA telescopes. We characterise the star to have a mass of 0.519 $\pm$ 0.013 M$_\odot$ and a radius of 0.516 $\pm$ 0.016 R$_\odot$. We modelled the transit light curves and radial velocity measurements and obtained a planetary mass of 3.34 $\pm$ 0.72 M$_\oplus$, a radius of 2.13 $\pm$ 0.11 R$_\oplus$, and a mean density of 1.89$^{+0.52}_{-0.45}$ g/cm$^3$. The low density of the planet implies the presence of volatiles, and its radius and insolation place it immediately above the radius valley at the lower end of the mini-Neptune cluster. A coupled atmospheric and dynamical evolution analysis of the planet is inconsistent with a pure H-He atmosphere and favours a heavy mean molecular weight atmosphere. The transmission spectroscopy metric of 221$^{+66}_{-46}$ means that GJ 3090 b is the second or third most favourable mini-Neptune after GJ 1214 b whose atmosphere may be characterised. At almost half the mass of GJ 1214 b, GJ 3090 b is an excellent probe of the edge of the transition between super-Earths and mini-Neptunes. We identify an additional signal in the radial velocity data that we attribute to a planet candidate with an orbital period of 13 days and a mass of 17.1$^{+8.9}_{-3.2}$ M$_\oplus$, whose transits are not detected.
description: 25 pages, 26 figures, accepted for publication in A&A
title: Magnetic resonance imaging evaluation of renal ischaemia-reperfusion injury in a rabbit model
Creators: name: Chen, Jie
Publisher: name: European Congress of Radiology
Year: 2017
Subjects: subject: Kidney
subject: MR
subject: Diagnostic procedure

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Renal ischemia reperfusion (IRI) injury occurs in various clinical settings,including kidney transplantation, partial nephrectomy and complex cardiovascular surgeries. [1-3] The clinical diagnosis of IRI is routinely based on biochemical and...
كيف تمكن المعرفات الدائمة الباحثين من الاندماج في البنية العالمية للبحوث؟
Creators: name: Almarzouq, Batool
Publisher: name: Zenodo
Year: 2023
Subjects: Open Science
Researchers
Persistent Identifiers
DOIs
Open Research
Webinar

description: Webinar title: Persistent Identifiers (PIDs) Adoptions: Introducing DataCite’s Global Access Program (GAP) to the Arab World اعتماد المعرفات الدائمة: تقديم برنامج الوصول العالمي الخاص بـداتا سيت إلى العالم العربي لا تزال الأبحاث المنتجة من العالم العربي (باللغتين العربية والإنجليزية) لا تحظى بالرؤية العالمية وقابلية الاكتشاف التي تستحقها. هنالك عدة أسباب لذلك منها علي سبيل المثال، عدم اعتماد واستخدام المعرفات الدائمة ضمن مسارات البحث المختلفة، وانخفاض الوعي باهمية المعرفات الدائمة وأنواعها المختلفة، والبيانات الوصفية غير المكتمله داتا سيت هي منظمة عالمية رائدة وغير هادفة للربح توفر المعرفات الدائمة لمختلف انواع مخرجات الأبحاث والموارد الأخرى. لقد اطلقنا برنامج الوصول العالمي لتحسين المساواة والوصول واعتماد البنية التحتية للمعرفات الدائمة ضمن المجتمعات الأكاديمية والبحثية في البلدان الاقل تمثيلا، بما في ذلك منطقة الشرق الأوسط وشمال إفريقيا في عرضها تتطرق د. بتول المرزوق لدور معرفات الكيانات الرقمية في اندماج الباحثيين مع بنية ،وانظمة البحث العالمية Please note that the webinar recordings is available in Arabic only at https://www.youtube.com/watch?v=IpMYN-Xr9Vo&t=3070s
Revisit of open clusters UPK 39, UPK 41 and PHOC 39 : a new binary open cluster found
Creators: name: Ye, Xianhao
name: Zhao, Jingkun
name: Oswalt, Terry D.
name: Yang, Yong
name: Zhao, Gang
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We investigate the three open clusters near Aquila Rift cloud, named as UPK 39 (\texttt{c1} hereafter), UPK 41 (\texttt{c2} hereafter) in Sim et al. (2019) and PHOC 39 (\texttt{c3} hereafter) in Hunt \& Reffert (2021), respectively. Using photometric passpands, reddening, and extinction from Gaia DR3, we construct the color-absolute-magnitude diagram (CAMD). Using isochrone fits their ages are estimated as $6.3\pm0.9$, $8.1\pm1.4$ and $21.8\pm2.2$ Myr, respectively. Their proper motions and radial velocities, estimated using data from Gaia and LAMOST are very similar. From their orbits, relative distances among them at different times, kinematics, ages, and metallicities, we conclude that \texttt{c1} and \texttt{c2} are primordial binary open cluster, which are likely to have been formed at the same time, and \texttt{c3} may capture \texttt{c1}, \texttt{c2} in the future.
description: 11 pages, 8 figures, 1 table. Accepted for publication in AJ
Using Formative Research to Develop a Context-Specific Approach to Informed Consent for Clinical Trials
Creators: name: Heilig, Charles M.
name: Ahmed, Yusuf
name: Corneli, Amy L.
name: Jamieson, Denise J.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2006

description: Participant understanding is of particular concern when obtaining informed consent. Recommendations for improving understanding include disclosing information using culturally appropriate and innovative approaches. To increase the effectiveness of the consent process for a clinical trial in Malawi on interventions to prevent mother-to-child transmission of HIV during breastfeeding, formative research was conducted to explore the community’s understanding of medical research as well as how to explain research through local terms and meanings. Contextual analogies and other approaches were identified to explain consent information. Guided by theory, strategies for developing culturally appropriate interventions, and recommendations from the literature, we demonstrate how the formative data were used to develop culturally appropriate counseling cards specifically for the trial in Malawi. With appropriate contextual modifications, the steps outlined here could be applied in other clinical trials conducted elsewhere, as well as in other types of research.
title: 3D printed image quality phantom for cone beam CT
Creators: name: Gilligan, Paddy
Publisher: name: European Congress of Radiology
Year: 2017
Subjects: subject: Radiation physics
subject: Cone beam CT
subject: CT
subject: CT-Angiography
subject: Technology assessment
subject: Cost-effectiveness
subject: Quality assurance

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: The number of cone-beam scanners in use within medical, therapeutic and dental practices is increasing. Quality assurance standards require the assessment of image quality. 3D printing has the potential to provide adaptable, reproducible, low cost...
Getting from A to IRB : Developing an Institutional Review Board at a Historically Black University
Creators: name: Boyd, Carlton L.
name: Nelson, Daniel K.
name: Howard, Daniel L.
name: Godley, Paul
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2010

description: Shaw University, the oldest historically black college or university in the southern USA, recently partnered with the University of North Carolina at Chapel Hill, a major research institution in North Carolina, to further develop Shaw’s research infrastructure. One aim of the partnership involved establishing a human research ethics committee and an accompanying administrative structure and research ethics education program. This paper describes the process of developing an entire human research protection program de novo through collaboration with and mentoring by the members of the human research protection program at a nearby major research institution. This paper provides a detailed description of the aims, procedures, accomplishments, and challenges involved in such a project, which may serve as a useful model for other primarily teaching institutions wishing to develop research infrastructure and ethical capacity.
Relativistic Bohmian trajectories and Klein-Gordon currents for spin-0 particles
Creators: name: Alkhateeb, M.
name: Matzkin, A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: It is generally believed that the de Broglie-Bohm model does not admit a particle interpretation for massive relativistic spin-0 particles, on the basis that particle trajectories cannot be defined. We show this situation is due to the fact that in the standard (canonical) representation of the Klein-Gordon equation the wavefunction systematically contains superpositions of particle and anti-particle contributions.\ We argue that by working in a Foldy-Wouthuysen type representation uncoupling the particle from the anti-particle evolutions, a positive conserved density for a particle and associated density current can be defined.\ For the free Klein-Gordon equation the velocity field obtained from this current density appears to be well-behaved and sub-luminal in typical instances. As an illustration, Bohmian trajectories for a spin-0 boson distribution are computed numerically for free propagation in situations in which the standard velocity field would take arbitrarily high positive and negative values.
Exposure to excess insulin (glargine) induces type 2 diabetes mellitus in mice fed on a chow diet
Creators: name: Yang, X.
name: Liu, Z.
name: Mei, S.
name: Zha, L.
name: Cao, W.
name: Guo, H.
name: Gu, H.
name: Cai, J.
name: Li, X.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014

description: We have previously shown that insulin plays an important role in the nutrient-induced insulin resistance. In this study, we tested the hypothesis that chronic exposure to excess long-acting insulin (glargine) can cause typical type 2 diabetes mellitus (T2DM) in normal mice fed on a chow diet. C57BL/6 mice were treated with glargine once a day for 8 weeks, followed by evaluations of food intake, body weight, blood levels of glucose, insulin, lipids, and cytokines, insulin signaling, histology of pancreas, ectopic fat accumulation, oxidative stress level, and cholesterol content in mitochondria in tissues. Cholesterol content in mitochondria and its association with oxidative stress in cultured hepatocytes and β-cells were also examined. Results show that chronic exposure to glargine caused insulin resistance, hyperinsulinemia, and relative insulin deficiency (T2DM). Treatment with excess glargine led to loss of pancreatic islets, ectopic fat accumulation in liver, oxidative stress in liver and pancreas, and increased cholesterol content in mitochondria of liver and pancreas. Prolonged exposure of cultured primary hepatocytes and HIT-TI5 β-cells to insulin induced oxidative stress in a cholesterol synthesis-dependent manner. Together, our results show that chronic exposure to excess insulin can induce typical T2DM in normal mice fed on a chow diet.
Symmetric-hyperbolic quasi-hydrodynamics
Creators: name: Gavassino, Lorenzo
name: Antonelli, Marco
name: Haskell, Brynmor
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We set up a general framework for systematically building and classifying, in the linear regime, causal and stable dissipative hydrodynamic theories that, alongside with the usual hydrodynamic modes, also allow for an arbitrary number of non-hydrodynamic modes with complex dispersion relation (such theories are often referred to as "quasi-hydrodynamic"). To increase the number of non-hydrodynamic modes one needs to add more effective fields to the model. The system of equations governing this class of quasi-hydrodynamic theories is symmetric hyperbolic, thermodynamically consistent (i.e. the entropy is a Lyapunov function) and can be derived from an action principle. As a first application of the formalism, we prove that, in the linear regime, the Israel-Stewart theory in the Eckart frame and the Israel-Stewart theory in the Landau frame are exactly the same theory. In addition, with an Onsager-Casimir analysis, we show that in strongly coupled plasmas the non-equilibrium degrees of freedom typically appear in pairs, whose members acquire opposite phase under time reversal. We use this insight to modify Cattaneo's model for diffusion, in a way to make its initial transient consistent with the transient dynamics of holographic plasmas.
description: 25 pages, 4 figures
Testing the key role of the stellar mass-halo mass relation in galaxy merger rates and morphologies via DECODE, a novel Discrete statistical sEmi-empiriCal mODEl
Creators: name: Fu, Hao
name: Shankar, Francesco
name: Ayromlou, Mohammadreza
name: Dickson, Max
name: Koutsouridou, Ioanna
name: Rosas-Guevara, Yetli
name: Marsden, Christopher
name: Brocklebank, Kristina
name: Bernardi, Mariangela
name: Shiamtanis, Nikolaos
name: Williams, Joseph
name: Zanisi, Lorenzo
name: Allevato, Viola
name: Boco, Lumen
name: Bonoli, Silvia
name: Cattaneo, Andrea
name: Dimauro, Paola
name: Jiang, Fangzhou
name: Lapi, Andrea
name: Menci, Nicola
name: Petropoulou, Stefani
name: Villforth, Carolin
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The relative roles of mergers and star formation in regulating galaxy growth are still a matter of intense debate. We here present our DECODE, a new Discrete statistical sEmi-empiriCal mODEl specifically designed to predict rapidly and efficiently, in a full cosmological context, galaxy assembly and merger histories for any given input stellar mass-halo mass (SMHM) relation. DECODE generates object-by-object dark matter merger trees (hence discrete) from accurate subhalo mass and infall redshift probability functions (hence statistical) for all subhaloes, including those residing within other subhaloes, with virtually no resolution limits on mass or volume. Merger trees are then converted into galaxy assembly histories via an input, redshift dependent SMHM relation, which is highly sensitive to the significant systematics in the galaxy stellar mass function and on its evolution with cosmic time. DECODE can accurately reproduce the predicted mean galaxy merger rates and assembly histories of hydrodynamic simulations and semi-analytic models, when adopting in input their SMHM relations. In the present work we use DECODE to prove that only SMHM relations implied by stellar mass functions characterized by large abundances of massive galaxies and significant redshift evolution, at least at $M_\star \gtrsim 10^{11} \, M_\odot$, can simultaneously reproduce the local abundances of satellite galaxies, the galaxy (major merger) pairs since $z \sim 3$, and the growth of Brightest Cluster Galaxies. The same models can also reproduce the local fraction of elliptical galaxies, on the assumption that these are strictly formed by major mergers, but not the full bulge-to-disc ratio distributions, which require additional processes.
description: MNRAS, accepted, 29 pages, 25 figures
The relation between atomic gas and star formation rate densities in faint irregular galaxies
Creators: name: Roychowdhury, Sambit
name: Chengalur, Jayaram N.
name: Kaisin, Serafim S.
name: Karachentsev, Igor D.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We use data for faint (M_B > -14.5) dwarf irregular galaxies drawn from the FIGGS survey to study the correlation between the atomic gas density (Sigma_gas,atomic) and star formation rate (Sigma_SFR) in the galaxies. The estimated gas phase metallicity of our sample galaxies is Z ~ 0.1 Z_sun. Understanding star formation in such molecule poor gas is of particular importance since it is likely to be of direct relevance to simulations of early galaxy formation. For about 20% (9/43) of our sample galaxies, we find that the HI distribution is significantly disturbed, with little correspondence between the optical and HI distributions. We exclude these galaxies from the comparison. We also exclude galaxies with very low star formation rates, for which stochastic effects make it difficult to estimate the true star formation rates. For the remaining galaxies we compute the Sigma_gas,atomic and Sigma_SFR averaged over the entire star forming disk of the galaxy. For these galaxies we find a nearly linear relation between the star formation rate and the atomic gas surface densities. The corresponding gas consumption timescale is ~ 10 Gyr, i.e. significantly smaller than the ~ 100 Gyr estimated for the outer regions of spiral galaxies. We also estimate the gas consumption timescale computed using the global gas content and the global star formation rate for all galaxies with a reliable measurement of the star formation rate, regardless of whether the HI distribution is disturbed or not. The mean gas consumption timescale computed using this entire gas reservoir is ~ 18 Gyr, i.e. still significantly smaller than that estimated for the outer parts of spirals. The gas consumption timescale for dwarfs is intermediate between the values of ~ 100 Gyr and ~ 2 Gyr estimated for the outer molecule poor and inner molecule rich regions of spiral disks.
description: 11 pages (+1 as appendix), 10 Figures (+1 in appendix), 2 Tables. Accepted for publication in MNRAS Main Journal. For the definitive version visit http://mnras.oxfordjournals.org/
Effect of Calcium Hydroxide on Proinflammatory Cytokines and Neuropeptides
Creators: name: Sun, Xiaoling
name: Hargreaves, Kenneth M.
name: Khan, Asma A.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2008

description: Calcium hydroxide, a widely used intracanal medicament, is known to exert an antimicrobial effect and degrade bacterial-derived lipopolysaccharides. However, little is known about the effect of Ca(OH)2 on endogenous inflammatory mediators such as interleukin-1α (IL-1α), tumor necrosis factorα (TNFα) and calcitonin gene-related peptide (CGRP). This is an important gap in knowledge since these inflammatory mediators play an important role in mediating the pathogenesis of periradicular periodontitis. We tested the hypothesis that Ca(OH)2 denatures IL-1α, TNFα and CGRP. Human IL-1α (0.125ng/ml), TNFα (0.2ng/ml) and CGRP (0.25ng/mL) were incubated with Ca(OH)2 (0.035mg/mL) for 1 to 7 days. At the end of the incubation period, the pH of the samples was neutralized and the concentrations of the mediators measured by immunoassays. Data were analyzed using one-way ANOVA and Bonferroni’s multiple comparison tests. The results indicate that Ca(OH)2 denatures IL-1α, TNFα and CGRP by 50–100% over the testing periods (p<0.001). We conclude that denaturation of these pro-inflammatory mediators is a potential mechanism by which Ca(OH)2 contributes to the resolution of periradicular periodontitis.
Extension and Density of Root Fillings and Postoperative Apical Radiolucencies in the Veterans Affairs Dental Longitudinal Study
Creators: name: YAMANAKA, R
name: WILCOSKY, T
name: GARCIA, R
name: ZHONG, Y
name: TROPE, M
name: CAI, J
name: KAYE, E
name: CAPLAN, D
name: KAUFMAN, J
name: CHASEN, J
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2008

description: We evaluated the association between radiographically-assessed extension and density of root canal fillings and post-operative apical radiolucencies (AR) using data from 288 participants in the Veterans Affairs Dental Longitudinal Study. Study subjects were not VA patients; all received their medical and dental care in the private sector. Generalized Estimating Equations were used to account for multiple teeth within subjects and to control for covariates of interest. Defective root filling density was associated with increased odds of post-operative AR among teeth with no pre-operative AR (Odds Ratio=3.0, 95%CI=1.3–7.1), though pre-operative AR was the strongest risk factor for post-operative AR (Odds Ratio=29.2, 95%CI=13.6–63.0 among teeth with ideal density). Compared to well-extended root fillings, neither over- nor under-extended root fillings separately were related to post-operative AR, but when those two categories were collapsed into one “poorly-extended” category, poor extension was related to post-operative AR (Odds Ratio=1.8, 95%CI=1.1–3.2).
Association of Endodontic Involvement with Tooth Loss in the Veterans Affairs Dental Longitudinal Study
Creators: name: Trope, Martin
name: Caplan, Daniel J.
name: Kaye, Elizabeth K.
name: Garcia, Raul
name: Cai, Jianwen
name: Wilcosky, Tim
name: Kaufman, Jay S.
name: Zhong, Yan
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2010

description: The effect of endodontic involvement on tooth loss has not been quantified, so the present study aimed to assess this relationship after controlling for other relevant risk factors for tooth loss.
Frequency of Nonodontogenic Pain after Endodontic Therapy: A Systematic Review and Meta-Analysis
Creators: name: John, Mike T.
name: Nixdorf, Donald R.
name: Hodges, James S.
name: Law, Alan S.
name: Moana-Filho, Estephan J.
name: McGuire, Lisa A.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2010

description: Little is known about ill-defined pain that persists following endodontic procedures, including an estimate of the problem’s magnitude. We conducted a systematic review of prospective studies that reported the frequency of non-odontogenic pain in patients who had undergone endodontic procedures.
Symmetric angular momentum coupling, the quantum volume operator and the 7-spin network: a computational perspective
Creators: name: Marinelli, Dimitri
name: Marzuoli, Annalisa
name: Aquilanti, Vincenzo
name: Anderson, Roger W.
name: Bitencourt, Ana Carla P.
name: Ragni, Mirco
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 81Q20

description: A unified vision of the symmetric coupling of angular momenta and of the quantum mechanical volume operator is illustrated. The focus is on the quantum mechanical angular momentum theory of Wigner's 6j symbols and on the volume operator of the symmetric coupling in spin network approaches: here, crucial to our presentation are an appreciation of the role of the Racah sum rule and the simplification arising from the use of Regge symmetry. The projective geometry approach permits the introduction of a symmetric representation of a network of seven spins or angular momenta. Results of extensive computational investigations are summarized, presented and briefly discussed.
description: 15 pages, 10 figures, presented at ICCSA 2014, 14th International Conference on Computational Science and Applications
title: Transcranial Magnetic Resonance-guided Focused Ultrasound Surgery (tcMRgFUS) at 1.5T: this is how we do it
Creators: name: Gagliardo, Cesare
Publisher: name: European Congress of Radiology
Year: 2017
Subjects: subject: Quality assurance
subject: Image verification
subject: Technical aspects
subject: Surgery
subject: Intraoperative
subject: MR
subject: Neuroradiology brain
subject: MR physics
subject: Interventional non-vascular

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: In recent years trans-cranial Magnetic Resonance-guided Focused Ultrasound Surgery (tcMRgFUS) treatments have been performed only using 3T units. Since following some internal analysis, planning images obtained using a 1.5T MRI’s body RF coil (as...
“Die Schweizer”. Welches Geschichtsbild braucht die Willensnation?
Creators: name: Furrer, Markus
Publisher: name: M. Furrer, “Die Schweizer”. Welches Geschichtsbild braucht die Willensnation?, «Public history weekly», 2, 2014, n. 2
Year: 2014

description: Der „Wille zur Geschichte“ ist gleichsam Elixier der Willensnation. Das war sicher auch ein Grund für das Schweizer Fernsehen, dem Publikum im November 2013 eine vierteilige Geschichtslektion zu besten Sendezeiten zu präsentieren. Doch welche Geschichte sollte hier gezeigt werden? Welches Geschichtsbild braucht die Willensnation?
Der Papst über die Einheit Europas und die christliche Religion (11.11.1948)
Creators: name: Pius XII., Papst
Publisher: name: Herder Korrespondenz
Year: 1970

description: Herder Korrespondenz, Bd. 3 Nr. 4 (1948): Herder Korrespondenz, Band 3, Heft 4
title: Voxel-Based Morphomerty study in patients with amnestic Mild Cognitive Impairment and Alzheimer's Disease: population-based data from the Zabùt Aging Project
Creators: name: Gagliardo, Cesare
Publisher: name: European Congress of Radiology
Year: 2017
Subjects: subject: Dementia
subject: Segmentation
subject: MR
subject: Neuroradiology brain

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Compare the preliminary results of a voxel-based morphometry (VBM) analysis performed in patients with amnestic Mild Cognitive Impairment (aMCI) and Alzheimer’s disease (AD) in comparison to a control group with normal aging brain...
title: Синегнойная инфекция сельскохозяйственных животных
Creators: name: Скориков, Александр Владимирович
name: Забашта, Николай Николаевич
name: Пруцаков, Сергей Владимирович
name: Наталья, Юрьевна Басова
name: Мирошниченко, Петр Васильевич
name: Данильченко, Олеся Борисовна
Publisher: name: ФГБНУ КНЦЗВ
Year: 2022

description: В монографии представлены материалы научных
и производственных исследований авторов, отечественных
и зарубежных ученых по вопросам этиологии, распространения, диагностики, патогенеза, клинического проявления, терапии
и профилактики этого заболевания.
Монография предназначена для научных сотрудников, руководителей и специалистов агропромышленного комплекса зооветеринарного профиля и студентов средних и высших учебных заведений по направлениям: ветеринария и зоотехния.