cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: The R.E.N.A.L. Nephrometry Score – What, Why and How
Creators: name: Garrido, Diogo
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Abdomen
subject: Kidney
subject: Urinary Tract / Bladder
subject: CT
subject: MR
subject: Diagnostic procedure
subject: Surgery
subject: Technical aspects
subject: Cancer
subject: Neoplasia

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: Understanding the workings and usefulness of R.E.N.A.L. Nephrometry Score, a cross-sectional imaging based systematic approach to help characterize renal masses and its complexity using images from (multiphasic contrast-enhanced) CT or MRI...
title: Advanced practice and education in radiography: What does the future hold? A review of the literature
Creators: name: Fenning, Leah
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Workforce
subject: Quality assurance
subject: Education and training
subject: Education
subject: Cost-effectiveness
subject: Audit and standards
subject: Digital radiography
subject: Conventional radiography
subject: Radiographers
subject: Professional issues

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: To explore the role of the advanced practitioner To discuss the current and future education of...
title: Aortopathy trough the eyes of computed tomography
Creators: name: Petkovic, Ana
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Cardiovascular system
subject: Arteries / Aorta
subject: CT-Angiography
subject: Computer Applications-Detection, diagnosis
subject: Computer Applications-3D
subject: Computer Applications-General
subject: Aneurysms
subject: Dilatation
subject: Dissection

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: To define usefulness of computed tomography of thoracic aorta to group of haemodinamicaly stable patients with chest pain and prior exclusion of acute coronary syndrome and pulmonary...
On substitution tilings of the plane with n-fold rotational symmetry
Creators: name: Maloney, Gregory R.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Metric Geometry (math.MG)
subject: FOS: Mathematics

description: A method is described for constructing, with computer assistance, planar substitution tilings that have n-fold rotational symmetry. This method uses as prototiles the set of rhombs with angles that are integer multiples of pi/n, and includes various special cases that have already been constructed by hand for low values of n. An example constructed by this method for n = 11 is exhibited; this is the first substitution tiling with 11-fold symmetry appearing in the literature.
description: 17 pages, 10 figures
title: Συγκρούσεις μεταξύ εκπαιδευτικών στο χώρο του σχολείου πρωτοβάθμιας εκπαίδευσης. Τρόποι διαχείρισης
title: Conflicts among educators in elementary education. Management styles
titleType: AlternativeTitle
Creators: name: Μακρυγιάννη, Ευανθία
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2022
Subjects: subject: Σύγκρουση
subject: Εκπαιδευτικοί

description: Η παρούσα έρευνα μελετά το φαινόμενο των συγκρούσεων σε εκπαιδευτικούς σχολείου πρωτοβάθμιας εκπαίδευσης. Αφού πρωτίστως αποσαφηνιστεί η εννοιολογική σημασία της σύγκρουσης, αναλύουμε τους τύπους συγκρούσεων που συναντάμε στη βιβλιογραφία και εστιάζουμε στους τύπους συγκρούσεων που λαμβάνουν χώρα στη σχολική μονάδα. Στη συνέχεια, αναφέρονται τα στάδια της σύγκρουσης σε έναν σχολικό οργανισμό δεδομένου ότι μια σύγκρουση δεν εμφανίζεται ξαφνικά, αλλά ακολουθεί συγκεκριμένα στάδια που είναι αναγκαίο να γνωρίζουμε. Τα αίτια δημιουργίας μιας σύγκρουσης σε ένα σχολικό περιβάλλον, παρότι είναι δυνατόν να μην είναι άμεσα διακριτά γιατί αλληλεπικαλύπτονται ή δρουν συσσωρευτικά, αποτελεί καθήκον της ηγεσίας να τα αναγνωρίσει προκειμένου να τα διαχειριστεί σωστά. Οι συνέπειες της σύγκρουσης με μια αποτελεσματική διαχείριση αποβαίνουν θετικές για τον σχολικό οργανισμό και μπορεί να οδηγήσουν σε εξέλιξη, καινοτομίες, και βελτίωση των συναδελφικών σχέσεων. Δεν παύουν όμως οι συγκρούσεις όσο αναπόφευκτες ή λειτουργικές είναι να προκαλούν μια αναστάτωση στους εμπλεκόμενους. Ειδικά αν δεν διαχειριστούν κατάλληλα επιδρούν αρνητικά στα άτομα, στη συμπεριφορά τους, στις διαπροσωπικές τους σχέσεις αλλά και στην επικοινωνία. Ως εκ τούτου, επηρεάζουν αρνητικά την στοχοθεσία του εκπαιδευτικού οργανισμού. Η αποτελεσματική διαχείριση των συγκρούσεων, αυτή που θα καταφέρει να τις μετασχηματίσει σε εποικοδομητικές για τον σχολικό οργανισμό προκύπτει ακολουθώντας κάποια από τις μεθόδους που παραθέτει ο Σαΐτης (2014), ωστόσο κάθε φορά κάθε σύγκρουση είναι μοναδική και ο τρόπος αντιμετώπισής της ποικίλλει ανάλογα με την περίπτωση. Η ύπαρξη θετικού κλίματος, η ικανή σχολική ηγεσία και η ωριμότητα του διδακτικού προσωπικού είναι προϋποθέσεις αποτελεσματικής διαχείρισης. Κύριος υπεύθυνος για την ομαλή λειτουργία του σχολείου και συγκεκριμένα για τη διαχείριση των συγκρούσεων είναι ο διευθυντής που επιβάλλεται να έχει ηγετικά χαρακτηριστικά, δεξιότητες και συμπεριφορές προκειμένου να πείσει τους εκπαιδευτικούς να συμπορευτούν προς τον κοινό στόχο του σχολικού οργανισμού. Ο ρόλος των εκπαιδευτικών στην αντιμετώπιση των αρνητικών αποτελεσμάτων των συγκρούσεων, έγκειται στη συμβολή τους στη διαμόρφωση θετικού κλίματος μέσω της συνεργασίας τους, της αλληλοϋποστήριξης και της σωστής διαχείρισης των συναισθημάτων τους.
Spezifische Komponenten der Psychotraumatherapie einsatzbedingter psychischer Erkrankungen bei deutschen Soldaten
Creators: name: Alliger-Horn, Christina
Publisher: name: Charité - Universitätsmedizin Berlin
Year: 2020
Subjects: subject: German Armed Forces
subject: Post-Traumatic Stress Disorder
subject: guilt
subject: shame
subject: military
subject: combat
subject: cognitive-behavioral therapy
subject: 600 Technik, Medizin, angewandte Wissenschaften::610 Medizin und Gesundheit::610 Medizin und Gesundheit

description: In the habilitatione, in addition to diagnostic, especially specific therapeutic components of the inpatient psychotraumatological treatment of german soldiers were presented. It turned out that the observance of guilt and shame as central traumatic affects in the treatment of soldiers is a particular clinical challenge. In the future, it will be important to extend existing treatment methods, the primarily classically fear-related war traumas, in order to extend topics of war-related guilt and shame in the therapeutic context in a targeted manner within the framework of cognitive-behavioral therapy methods.
title: Magnetic resonance safety: are there new paradigms?
Creators: name: Silva, Vítor
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Radiographers
subject: Professional issues
subject: MR
subject: Safety
subject: Education
subject: Education and training
subject: Occupational / Environmental hazards

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: To recognize that paradigms in magnetic resonance imaging (MRI) safety are changing due to the growth of MRI procedures worldwide, and the number of patients with medical or implantable devices and prothesis, increasing the probability to perform...
Generalized principal bundles and quotient stacks
Creators: name: Caviglia, Elena
Publisher: name: arXiv
Year: 2023
Subjects: subject: Category Theory (math.CT)
subject: Algebraic Geometry (math.AG)
subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics
subject: 18F20, 18F10, 18C40, 14A20, 18F15

description: We consider the internalization of the usual notion of principal bundle in a site that has all pullbacks and a terminal object. We use this notion to consider the explicit construction of quotient prestacks via presheaves of categories of principal bundles equipped with equivariant morphisms in this abstract context. We then prove that, if the site is subcanonical and the underlying category satisfies some mild conditions, these quotient prestacks satisfy descent in the sense of stacks.
description: final version published in Theory and Applications of Categories
Crystalline 'Genes' in Metallic Liquids
Creators: name: Sun, Yang
name: Zhang, Feng
name: Ye, Zhuo
name: Fang, Xiaowei
name: Ding, Zejun
name: Wang, Cai-Zhuang
name: Mendelev, Mikhail I.
name: Ott, Ryan T.
name: Kramer, M. J.
name: Ho, Kai-Ming
Publisher: name: arXiv
Year: 2014
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The underlying structural order that transcends the liquid, glass and crystalline states is identified using an efficient genetic algorithm (GA). GA identifies the most common energetically favorable packing motif in crystalline structures close to the alloy's Al-10 at.% Sm composition. These motifs are in turn compared to the observed packing motifs in the actual liquid structures using a cluster-alignment method which reveals the average topology. Conventional descriptions of the short-range order, such as Voronoi tessellation, are too rigid in their analysis of the configurational poly-types when describing the chemical and topological ordering during transition from undercooled metallic liquids to crystalline phases or glass. Our approach here brings new insight into describing mesoscopic order-disorder transitions in condensed matter physics.
New synthetic approaches for metal salphens and development of microfluidic platforms to study their G-quadruplex binding
Creators: name: Rakers, Viktoria Lena
Publisher: name: Imperial College London
Year: 2018

description: Guanine-rich sequences are primarily found in the promoter region of several proto-oncogenes and in the telomeric region; they have been shown to readily fold into quadruple-stranded structures, termed G-quadruplexes, in vitro. Mounting experimental evidence suggests that these structures are involved in key biological processes like replication, transcription and telomere maintenance. A wide range of high-affinity binders has been presented in the literature, but the development of small molecule binders has been mostly limited to conventional batch synthesis. In addition, screening efforts for new potent binders are mostly restricted to 96-well plate-based techniques with reduced throughput. The research presented in this thesis aimed to overcome both shortcomings by providing new technology and new synthetic approaches, the key findings are the following: 1) A “one-pot” as well as an “in flow” synthesis approach was developed for metal salphen based G4 binders. 1H-NMR spectroscopy proved full conversion of a range of Ni(II) salphen complexes. The FRET melting data of the “one pot” prepared compounds (which do not require any purification before testing) were in good accordance with the conventionally synthesised compounds. 2) A microfluidics-based FRET melting platform that enables the real-time and on-line assessment of G-quadruplex binders in continuous flow was developed. The performance of the platform was tested with four commercially available G4 binders BRACO19, TMPyP4, PDS and PhenDC3, the non-binder TMPyP2 as negative control and three new Ni(II) salphen complexes. 3) Segmented flow microfluidics was exploited to develop a pressure-driven approach for generating monodisperse water-in-oil droplets which relied on integrating a quartz pipette (pore size = 3 – 10 µm) into a microfluidic device and pushing the dispersed phase at a constant flow rate through the pipette while varying the carrier phase flow rate. Droplet volumes ranged from 231 fL to 261 pL for a single device when varying the carrier phase flow rate from 1 to 500 µl/min. Using this droplet generation method high-throughput fluorescence-based assays in droplets, namely the FRET melting assay and the Job’s method were carried out, to shine light on the stabilising effect of several G4 binders (PDS, BRACO19, TMPyP4) and on the binding stoichiometry of a novel Pt(II) salphen-based “switch-on” ligand. 4) Furthermore, the integration of the biological target (dimeric quadruplex DNA) into the in situ synthesis was explored in a target-guided synthesis approach. Four different alkyne modified Ni(II) salphen complexes and three different diazide PEG linkers served as building blocks for the in situ “click” reaction. Successful protocols to analyse the mixtures by LC-MS were developed. However, integration of the target inhibited the reaction rendering the “target-guided synthesis” approach unsuccessful.
Glycoside constituents from Miliusa sinensis leaves and their anti-inflammatory and acetylcholine protective effects
Creators: name: Hue, Cao Thi
name: Trung, Vu Thanh
name: Hoa, Nguyen Thanh
name: Huong, Nguyen Thi Lan
name: Binh, Pham Thanh
name: Nguyen The Cuong
name: Van Thanh, Nguyen
name: Thao, Nguyen Phuong
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified

description: Repeated column chromatography resulted in the isolation of two new glycosides, miliusides A–B (1 and 7), along with six known metabolites (2–6, and 8) from the leaves of Miliusa sinensis Finet and Gagnep. The structures of the purified phytochemicals were elucidated by interpreting their spectroscopic data (NMR, HRMS), as well as comparison with the previous literature. The biological evaluation of acetylcholinesterase (AChE) inhibitory effects and anti-inflammatory activity by measuring nitric oxide (NO) production in lipopolysaccharide (LPS)-induced RAW264.7 mouse macrophage cells, were also conducted. Among them, compounds 5 and 7 exhibited significant AChE inhibitory activities (IC50 = 53.36 ± 4.20 and 88.50 ± 8.79 µM, respectively), compared with the positive control (Galanthamine, IC50 = 1.65 ± 0.15 µM). Only the MeOH extract showed suppression effects on NO production in LPS-induced RAW264.7 cells (IC50 = 38.18 ± 3.25 μg/mL) comparable to that of the positive control, l-NMMA (IC50 = 2.21 ± 0.56 μg/mL).
title: Mechanochemical endovenous ablation - a novel technique for radiologists.
Creators: name: Grkovski, Risto
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Varices
subject: Venous access
subject: Catheters
subject: Ablation procedures
subject: Ultrasound
subject: Percutaneous
subject: Veins / Vena cava
subject: Interventional vascular

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: - To describe the mechanism of a mechanochemical endovenous ablation (MOCA). - To review indications and contraindications . - To discuss outcomes , possible complications , feasible alternatives and radiologist’s role in endovenous treatment of...
Controllability and Fraction of Leaders in Infinite Network
Creators: name: Enyioha, Chinwendu
name: Rahimian, Mohammad Amin
name: Pappas, George J.
name: Jadbabaie, Ali
Publisher: name: arXiv
Year: 2014
Subjects: subject: Systems and Control (eess.SY)
subject: Optimization and Control (math.OC)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: In this paper, we study controllability of a network of linear single-integrator agents when the network size goes to infinity. We first investigate the effect of increasing size by injecting an input at every node and requiring that network controllability Gramian remain well-conditioned with the increasing dimension. We provide theoretical justification to the intuition that high degree nodes pose a challenge to network controllability. In particular, the controllability Gramian for the networks with bounded maximum degrees is shown to remain well-conditioned even as the network size goes to infinity. In the canonical cases of star, chain and ring networks, we also provide closed-form expressions which bound the condition number of the controllability Gramian in terms of the network size. We next consider the effect of the choice and number of leader nodes by actuating only a subset of nodes and considering the least eigenvalue of the Gramian as the network size increases. Accordingly, while a directed star topology can never be made controllable for all sizes by injecting an input just at a fraction $f<1$ of nodes; for path or cycle networks, the designer can actuate a non-zero fraction of nodes and spread them throughout the network in such way that the least eigenvalue of the Gramians remain bounded away from zero with the increasing size. The results offer interesting insights on the challenges of control in large networks and with high-degree nodes.
description: 6 pages, 3 figures, to appear in 2014 IEEE CDC
The design and synthesis of small molecules, oligomers and polymers for singlet fission applications.
Creators: name: Andrews, Iain Baird
Publisher: name: Imperial College London
Year: 2018

description: In the development of OPV devices the drive has always been to improve the power conversion efficiency. One way of achieving this is by increasing the external quantum yield of the solar cell and thus increasing the current output. Recently there has been a wave of interest in singlet fission, the process by which an excited singlet can be split into two triplets. Unlike intersystem crossing this is a spin-allowed process and happens in pico to femtosecond timescales. Although this occurs with a drop in voltage the maximum quantum yield becomes 200%. This thesis will be concerned with the design and synthesis of compounds with the prospect of them exhibiting intramolecular singlet fission. Reported here is the development of a synthetic route towards oligomers of poly(3-dodecylthienylene vinylene), the design of dimerised diazaacenes and efforts towards their synthesis, and the design and synthesis of anti-aromatic compounds and donor-acceptor polymers synthesised thereof.
title: Radiology-Led Transperineal Ultrasound-Guided Prostate Biopsy
Creators: name: McNicholas, Michelle
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Interventional non-vascular
subject: Genital / Reproductive system male
subject: Ultrasound
subject: MR
subject: Biopsy
subject: Patterns of Care
subject: Cancer
subject: Image registration

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: To describe the technique of transperineal (TP) ultrasound-guided prostate biopsy, problems that may be encountered and complications that may occur, patient preparation and aftercare. To outline the setting-up and workload of a radiologist-led TP...
Conjugated linker molecules for angular control in the directed assembly of single walled carbon nanotubes
Creators: name: Roberts, Christopher Simon
Publisher: name: Imperial College London
Year: 2018

description: In this thesis, an entirely new approach for the supramolecular self-assembly of SWCNT is further developed. Exploiting the well-documented endohedral encapsulation of fullerenes within carbon nanotubes, C60-functionalised, star-shaped conjugated molecules act as molecular linkers, directing the assembly of the SWCNTs. Based upon porphyrin and truxene cores, two fullerene linker molecules were synthesised, and their geometric influence over the inter-SWCNT angles demonstrated. Two solvent systems (NMP and toluene) were shown to be suitable for successful self-assembly of SWCNT SWCNT junctions and large area (> 900 µm2) SWCNT networks, characterised extensively by AFM. Whilst agglomeration and rebundling affected the morphology of assemblies in the NMP system, the use of poly(9,9-di-n-dodecylfluorenyl-2,7-diyl) to stabilise SWCNT dispersion in toluene maintained SWCNT individualisation, resulting in highly angular SWCNT islands and networks. However, in spite of clear demonstration over angular control for bis-SWCNT junctions, only one example of a higher multiplicity junction was observed, and possible explanations as to the limiting factor(s), along with avenues for further investigative work, are offered.
Boundary Orders and Geometry of the Signed Thom–Smale Complex for Sturm Global Attractors
Creators: name: Fiedler, Bernold
name: Rocha, Carlos
Publisher: name: Freie Universität Berlin
Year: 2022
Subjects: subject: scalar parabolic PDE
subject: combinatorial aspects
subject: geometric aspects
subject: 500 Naturwissenschaften und Mathematik::510 Mathematik::510 Mathematik

description: We embark on a detailed analysis of the close relations between combinatorial and geometric aspects of the scalar parabolic PDE ut=uxx+f(x,u,ux) (*) on the unit interval 0
title: Der Zusammenhang von situationaler Stärke, beruflicher Selbstwirksamkeit und Arbeitszufriedenheit am Beispiel des österreichischen Bundesheeres
Creators: name: Wallner, Lena
Year: 2023

description: In dieser Masterthesis wird untersucht, ob die Situationale Stärke eine moderierende Wirkung auf den Zusammenhang zwischen beruflicher Selbstwirksamkeit und Arbeitszufriedenheit aufweist. Es wird angenommen, dass die berufliche Selbstwirksamkeit positiv mit der Arbeitszufriedenheit zusammenhängt und die Situationale Stärke diesen Zusammenhang in Form eines abschwächenden Effektes moderiert. Dafür wurde eine querschnittliche Fragebogenstudie beim österreichischen Bundesheer mit N = 880 Teilnehmer:innen durchgeführt. Mittels einer Pearson-Korrelation wurde gezeigt, dass berufliche Selbstwirksamkeit und Arbeitszufriedenheit signifikant positiv miteinander korrelieren. Die Moderationsanalyse der Situationalen Stärke bezogen auf diesen Zusammenhang zeigte keine signifikanten Ergebnisse. Bei genauerer Betrachtung der einzelnen Facetten der Situationalen Stärke (Klarheit, Konsistenz, Konsequenzen und Einschränkungen) und der getrennten Analyse der Effekte je nach Tätigkeitsbereich (militärisch oder nicht-militärisch) wurden teilweise unterschiedliche Effekte gefunden, welche sich in der Stärke und Richtung unterschieden. Die Facette Klarheit scheint im militärischen Tätigkeitsbereich und die Facette Konsequenzen im nicht-militärischen Tätigkeitsbereich eine wichtige Ressource zu sein. Diese wiesen einen signifikanten moderierenden Effekt auf den Zusammenhang zwischen beruflicher Selbstwirksamkeit und Arbeitszufriedenheit heraus. Die Facette Klarheit schwächt den Zusammenhang ab, die Facette Konsequenzen verstärkt diesen. Zusammenfassend lässt sich sagen, dass die Situationale Stärke je nach Facette unterschiedliche verstärkende oder abschwächende Auswirkungen auf den Zusammenhang zwischen beruflicher Selbstwirksamkeit und Arbeitszufriedenheit hat. Bezogen auf die aus der Theorie abgeleiteten Hypothesen und explorativen Analysen werden praktische Implikationen, zukünftige Forschungsfelder und Limitationen diskutiert.
The kinematics and dynamics of complex crater collapse
Creators: name: Rae, Auriol Stephen Prenter
Publisher: name: Imperial College London
Year: 2018

description: Large impact craters collapse to form complex structures, with zones of structural uplift that can be expressed topographically as central peaks and/or peak-rings internal to the crater rim. The formation of these structures requires transient strength reduction in the target material, but the process that facilitates this strength reduction is unknown. More fundamentally, descriptions of how structural uplifts, particularly peak-rings, are emplaced lack the quantitative details needed to constrain models of large impact crater formation. This thesis describes aspects of the formation of complex impact structures in an attempt to constrain the mechanism that facilitates crater collapse. The approach adopted in this research was to combine geological observations of large impact structures; field geology, core logging, petrography, and petrophysics, with the results of numerical impact simulations. More specifically, this thesis focusses upon the Clearwater Lake impact structures and the Chicxulub impact structure as case studies to understand complex crater collapse. The results presented demonstrate that the block model of acoustic fluidisation provides a realistic description of the rheology of rocks during crater collapse. Nonetheless, observational support for the block model of acoustic fluidisation, or indeed, any single currently proposed transient weakening mechanism, is lacking. Deformation during crater collapse is dominated by cataclasites which occur on a variety of scales, while the lubrication of faults by frictional melts and/or intrusions of impact melt and breccia may only have a significant effect during the late-stages of crater modification. The research carried out in this thesis demonstrates numerous ways in which geological and geophysical observations can be combined with numerical impact simulations to understand cratering and constrain the process of crater collapse. The methods include using observationally constrained shock pressures, geophysical data, and most significantly, the structural history of rocks in impact craters.
title: Lung cancer: what the surgeon wants to know - A primer for radiology residents
Creators: name: Parekh, Maansi
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Lymph nodes
subject: Oncology
subject: CT
subject: PET-CT
subject: Diagnostic procedure
subject: Cancer

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: Following revision of the TNM lung cancer classification, it is important for residents to understand changes of the descriptors and clinical relevance to guide patient treatment including surgical...
Advances in Image-Guided Radiotherapy in the Treatment of Oral Cavity Cancer
Creators: name: Nien, Hsin-Hua
name: Hsieh, Chen-Hsi
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Medicine and Health Sciences
subject: IGRT
subject: oral cavity cancer
subject: overall survival

description: reviews to discuss the effects and importance of IGRT for patients with OCC, ex-amines the rationale underlying the advantages of IGRT, discusses the limitations of IGRT with respect to different techniques
title: Acute scrotum in adults in the emergency department : Ultrasound findings.
Creators: name: Melaki, Kalliopi
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Trauma
subject: Acute
subject: Diagnostic procedure
subject: Contrast agent-intravenous
subject: Ultrasound-Power Doppler
subject: Ultrasound-Colour Doppler
subject: Ultrasound
subject: Genital / Reproductive system male
subject: Ischaemia / Infarction

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: 1. To review the various pathologies that present as acute scrotal pain in the emergency department. 2. To emphasize the role of ultrasound (US) in the differential diagnosis of acute scrotum. 3. To describe the US findings in the most common...
Exploring SARS-CoV-2 Delta variant spike protein receptor-binding domain (RBD) as a target for tanshinones and antimalarials
Creators: name: Coghi, Paolo
name: Yun, Xiao Yun
name: Ng, Jerome P. L.
name: Law, Betty Yuan Kwan
name: Memo, Maurizio
name: Gianoncelli, Alessandra
name: Wong, Vincent Kam Wai
name: Ribaudo, Giovanni
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Molecular Biology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology

description: The interaction of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) receptor-binding domain (RBD) of spike protein with angiotensin-converting enzyme 2 (ACE2) mediates cell invasion. While this interaction mechanism is conserved, the RBD is affected by amino acid mutations in variants such as Delta and Omicron, resulting in enhanced transmissibility and altered ligand binding. Tanshinones are currently investigated as multi-target antiviral agents, but the studies were limited to the original SARS-CoV-2. This study aims at investigating the interaction of tanshinones with the Delta RBD. Chloroquine, methylene blue and pyronaridine, antimalarials previously identified as SARS-CoV-2 RBD binders, were studied for reference. Docking indicated the best scores for tanshinones, while bio-layer interferometry and molecular dynamics highlighted methylene blue as the best Delta RBD binder, although with decreased affinity with respect to the original strain.
title: When to suspect of Budd-Chiari Syndrome? Ultrasound clues and hints
Creators: name: Nogueira Junqueira, José Claudio
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Neoplasia
subject: Cirrhosis
subject: Technical aspects
subject: Education
subject: Diagnostic procedure
subject: Ultrasound-Spectral Doppler
subject: Ultrasound-Colour Doppler
subject: Ultrasound
subject: Veins / Vena cava
subject: Liver
subject: Abdomen
subject: Haematologic diseases

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: To review etiology and clinical presentation of Budd-Chiari Syndrome. To highlight the importance of Doppler ultrasound evaluation, main ultrasound findings, techniques and...
Reaching out to early-career astrobiologists: AbGradE's actions and perspectives
Creators: name: Nauny, Philippe
name: Cassaro, Alessia
name: Kopacz, Nina
name: Noack, Lena
name: Palabikyan, Hayk
name: Pinna, Silvana
name: Price, Alex
name: Stavrakakis, Hector A.
name: Taubner, Ruth-Sophie
Publisher: name: Freie Universität Berlin
Year: 2022
Subjects: subject: AbGradE
subject: astrobiology
subject: early-career
subject: 500 Naturwissenschaften und Mathematik::520 Astronomie::520 Astronomie und zugeordnete Wissenschaften

description: Astrobiology Graduates in Europe (AbGradE, pronounced ab-grad-ee) is an association of early-career scientists working in fields relevant to astrobiological research. Conceptualized in 2013, it was initially designed as a mini-conference or workshop dedicated to early-career researchers, providing a friendly environment where early-career minds would be able to present their research without being intimidated by the possibility of facing a more traditional audience, composed mainly of senior scientists. Within the last couple of years, AbGradE became the first point of call for European, but also for an increasing number of non-European, early-career astrobiologists. This article aims to present how AbGradE has evolved over the years (in its structure and in its way of organizing events), how it has adapted with the COVID-19 pandemic, and what future developments are considered.
Even triangulations of n-dimensional pseudo-manifolds
Creators: name: Rubinstein, J. Hyam
name: Tillmann, Stephan
Publisher: name: arXiv
Year: 2014
Subjects: subject: Geometric Topology (math.GT)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 57M25, 57N10

description: This paper introduces even triangulations of n-dimensional pseudo-manifolds and links their combinatorics to the topology of the pseudo-manifolds. This is done via normal hypersurface theory and the study of certain symmetric representation. In dimension 3, necessary and sufficient conditions for the existence of even triangulations having one or two vertices are given. For Haken n-manifolds, an interesting connection between very short hierarchies and even triangulations is observed.
description: 28 pages, 6 figures
Chemical composition, antioxidant activity and development of a facial serum formulation from the extract of Hancornia speciosa
Creators: name: Panontin, Juliane Farinelli
name: dos Santos Barbosa, Robson
name: Isaac, Vera
name: Seibert, Carla Simone
name: Scapin, Elisandra
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biochemistry
subject: Molecular Biology
subject: Pharmacology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Plant Biology

description: The goal of this work was to chemically characterise Hancornia speciosa extracts to develop an antioxidant serum formulation. Stem and bark extracts were prepared using 70% hydroethanol solution by Sohxlet and ultrasound assisted extraction. The content of total phenols, flavonoids, and antioxidant activity were evaluated, and chemical characterization was performed by HPLC -detector UV-VIS (SPD − 10 A). The formulation was developed with stem extract (0.250 mg/g) in hydroxyethylcellulose fluid gel. Stem extracts had higher total phenols and flavonoids, and higher antioxidant activity than bark extracts. The formulation presented low viscosity, a yellowish colour, 81.28% ± 0.14 of antioxidant activity. In the stability test, the physicochemical characteristics showed small variations, remaining more stable at a temperature of 5 °C, with an antioxidant activity of 64.81% ± 0.75. Therefore, the stem of H. speciosa has the potential to be used in antioxidant formulations.
Strengthening Journalism from the Margins: Engaged Journalism in Brazil and Egypt
Creators: name: Medeiros, Débora
name: Badr, Hanan
Publisher: name: Freie Universität Berlin
Year: 2022
Subjects: subject: Alternative media
subject: engaged journalism
subject: Egypt
subject: Brazil
subject: MadaMasr
subject: The Intercept Brasil
subject: qualitative content analysis
subject: 000 Informatik, Informationswissenschaft, allgemeine Werke::070 Publizistische Medien, Journalismus, Verlagswesen::079 Journalismus und Zeitungen in anderen geografischen Gebieten

description: This article develops the concept of engaged journalism outside a US context, comparing how engaged journalists in Brazil and Egypt discursively negotiate their professional positions in the face of far-right governments’ constraints. Engaged journalists are professional journalists working in alternative media and strongly committed to a political position. Inspired by Bourdieu’s field theory, the article investigates how engaged journalists legitimise themselves by contesting legacy journalism from the margins through innovative digital formats in times of blurred boundaries. A qualitative content analysis of 21 articles (editorials and op-ed pieces) published in The Intercept Brasil and MadaMasr from 2015 to 2020 (a) develops the concept of engaged journalism in alternative media, (b) reconstructs how two media initiatives in the Global South discursively negotiated editorial actions and distinguished themselves from legacy journalism, and (c) proposes a global transferable understanding of engaged journalism based on research in two media systems. Three themes emerge: raison d’être and purpose, tensions between democratic and authoritarian norms, and the establishment of legitimacy through an emphasis on journalistic practices, revealing that engaged journalists are driven by media criticism, but still position themselves within journalism, offering a radical new path. This article contributes to theory-building about engaged journalism in the Global South.
The Araucaria Project. Binary Classical Cepheids in the LMC
Creators: name: Graczyk, D.
name: Pilecki, B.
name: Pietrzyński, G.
name: Gieren, W.
name: Konorski, P.
name: Soszyński, I.
name: Udalski, A.
name: Gallenne, A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The status of our work on binary classical cepheid systems in the Large Magellanic Cloud is presented. We report on results from our follow up of two eclipsing binary cepheids OGLE-LMC-CEP-0227 and OGLE-LMC-CEP-1812. Here we presented for the first time confirmation that a third cepheid OGLE-LMC-CEP-2532 is a true eclipsing binary cepheid with a period of 800 days. Two other very good candidates for eclipsing binaries detected during OGLE-IV survey are also discussed.
description: oral talk presented in conference "Setting a New Standard in the Analysis of Binary Stars", Leuven, Belgium, 2013
An Effective Model for the Cosmic-Dawn 21-cm Signal
Creators: name: Muñoz, Julian B.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The 21-cm signal holds the key to understanding the first structure formation during cosmic dawn. Theoretical progress over the last decade has focused on simulations of this signal, given the nonlinear and nonlocal relation between initial conditions and observables (21-cm or reionization maps). Here, instead, we propose an {\it effective} and fully analytic model for the 21-cm signal during cosmic dawn. We take advantage of the exponential-like behavior of the local star-formation rate density (SFRD) against densities at early times to analytically find its correlation functions including nonlinearities. The SFRD acts as the building block to obtain the statistics of radiative fields (X-ray and Lyman-$α$ fluxes), and therefore the 21-cm signal. We implement this model as the public Python package Zeus21. This code can fully predict the 21-cm global signal and power spectrum in $\sim 1$ s, with negligible memory requirements. When comparing against state-of-the-art semi-numerical simulations from 21CMFAST we find agreement to $\sim10\%$ precision in both the 21-cm global signal and power spectra, after accounting for a (previously missed) underestimation of adiabatic fluctuations in 21CMFAST. Zeus21 is modular, allowing the user to vary the astrophysical model for the first galaxies, and interfaces with the cosmological code CLASS, which enables searches for beyond standard-model cosmology in 21-cm data. This represents a step towards bringing 21-cm to the era of precision cosmology.
description: 20+4 pages, 21+4 figures. Updated to match accepted version. Code available at https://github.com/JulianBMunoz/Zeus21
A topology framework for macromolecular complexes and condensates
Creators: name: Heidari, Maziar
name: Moes, Duane
name: Schullian, Otto
name: Scalvini, Barbara
name: Mashaghi, Alireza
Publisher: name: Freie Universität Berlin
Year: 2022
Subjects: subject: topology
subject: macromolecular complex
subject: protein evolution
subject: 500 Naturwissenschaften und Mathematik::570 Biowissenschaften; Biologie::570 Biowissenschaften; Biologie

description: Macromolecular assemblies such as protein complexes and protein/RNA condensates are involved in most fundamental cellular processes. The arrangement of subunits within these nano-assemblies is critical for their biological function and is determined by the topology of physical contacts within and between the subunits forming the complex. Describing the spatial arrangement of these interactions is of central importance to understand their functional and stability consequences. In this concept article, we propose a circuit topology-based formalism to define the topology of a complex consisting of linear polymeric chains with inter- and intrachain interactions. We apply our method to a system of model polymer chains as well as protein assemblies. We show that circuit topology can categorize different forms of chain assemblies. Our multi-chain circuit topology should aid analysis and predictions of mechanistic and evolutionary principles in the design of macromolecular assemblies.
Through Skull Fluorescence Imaging of the Brain in a New Near-Infrared Window
Creators: name: Hong, Guosong
name: Diao, Shuo
name: Chang, Junlei
name: Antaris, Alexander L.
name: Chen, Changxin
name: Zhang, Bo
name: Zhao, Su
name: Atochin, Dmitriy N.
name: Huang, Paul L.
name: Andreasson, Katrin I.
name: Kuo, Calvin J.
name: Dai, Hongjie
Publisher: name: arXiv
Year: 2014
Subjects: subject: Medical Physics (physics.med-ph)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: To date, brain imaging has largely relied on X-ray computed tomography and magnetic resonance angiography with limited spatial resolution and long scanning times. Fluorescence-based brain imaging in the visible and traditional near-infrared regions (400-900 nm) is an alternative but currently requires craniotomy, cranial windows and skull thinning techniques, and the penetration depth is limited to 1-2 mm due to light scattering. Here, we report through-scalp and through-skull fluorescence imaging of mouse cerebral vasculature without craniotomy utilizing the intrinsic photoluminescence of single-walled carbon nanotubes in the 1.3-1.4 micrometre near-infrared window. Reduced photon scattering in this spectral region allows fluorescence imaging reaching a depth of >2 mm in mouse brain with sub-10 micrometre resolution. An imaging rate of ~5.3 frames/s allows for dynamic recording of blood perfusion in the cerebral vessels with sufficient temporal resolution, providing real-time assessment of blood flow anomaly in a mouse middle cerebral artery occlusion stroke model.
description: 38 pages, 4 main figures and 11 Supplementary figures. published in Nature Photonics, 2014
Complete directed minors and chromatic number
Creators: name: Mészáros, Tamás
name: Steiner, Raphael
Publisher: name: Freie Universität Berlin
Year: 2022
Subjects: subject: chromatic number
subject: directed graphs
subject: graph minors
subject: Hadwiger's conjecture
subject: 500 Naturwissenschaften und Mathematik::510 Mathematik::510 Mathematik

description: The dichromatic number χ→(D) of a digraph D is the smallest k for which it admits a k-coloring where every color class induces an acyclic subgraph. Inspired by Hadwiger's conjecture for undirected graphs, several groups of authors have recently studied the containment of complete directed minors in digraphs with a given dichromatic number. In this note we exhibit a relation of these problems to Hadwiger's conjecture. Exploiting this relation, we show that every directed graph excluding the complete digraph K↔t of order t as a strong minor or as a butterfly minor is O(t(log log t)6)-colorable. This answers a question by Axenovich, Girão, Snyder, and Weber, who proved an upper bound of t4t for the same problem. A further consequence of our results is that every digraph of dichromatic number 22n contains a subdivision of every n-vertex subcubic digraph, which makes progress on a set of problems raised by Aboulker, Cohen, Havet, Lochet, Moura, and Thomassé.
title: Inferior vena cava thrombosis and its complications on ultrasound: a pictorial essay
Creators: name: Nogueira Junqueira, José Claudio
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Education
subject: Ultrasound-Spectral Doppler
subject: Ultrasound-Colour Doppler
subject: Ultrasound
subject: Veins / Vena cava
subject: Liver
subject: Abdomen
subject: Cancer
subject: Obstruction / Occlusion
subject: Haematologic diseases

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: To present a series of cases of inferior vena cava thrombosis on ultrasound, associated findings and...
WISEA J064750.85-154616.4: a new nearby L/T transition dwarf
Creators: name: Scholz, Ralf-Dieter
name: Bihain, Gabriel
name: Storm, Jesper
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Aims: Our aim is to detect and classify previously overlooked brown dwarfs in the solar neighbourhood. Methods: We performed a proper motion search among bright sources observed with the Wide-field Infrared Survey Explorer (WISE) that are also seen in the Two Micron All Sky Survey (2MASS). Our candidates appear according to their red $J$$-$$K_s$ colours as nearby late-L dwarf candidates. Low-resolution near-infrared (NIR) classification spectroscopy in the $HK$ band allowed us to get spectroscopic distance and tangential velocity estimates. Results: We have discovered a new L9.5 dwarf, WISEA J064750.85-154616.4, at a spectroscopic distance of about 14 pc and with a tangential velocity of about 11 km/s, typical of the Galactic thin disc population. We have confirmed another recently found L/T transition object at about 10 pc, WISEA J140533.13+835030.7, which we classified as L8 (NIR).
description: Research Note accepted for publication in Astronomy and Astrophysics, 5 pages, 3 figures
Silicon-containing COFs and MOFs for CO2 capture
Creators: name: Bull, Okpara Sergeant
Publisher: name: Imperial College London
Year: 2018

description: This work was conducted in order to explore the potential of novel silicon-based Covalent Organic Frameworks (COFs) and Metal-Organic Frameworks (MOFs) for CO2 capture. A Lewis acid, cyclo-1,3,3,5,7,7-hexaphenyl-1,5-dibora-3,7-disiloxane (3) was synthesized and complexed with a variety of Lewis bases such as 4,4ˈbipyridine (L1), 1,2-di(pyridin-4- yl)ethane (L2), 1,2-di(pyridin-4-yl)ethene (L3), 1,3-di(pyridin-4-yl)propane (L4), 1,2- di(pyridin-4-yl)sulfane (L5), 1,2-di(pyridin-4-yl)diazene (L6), 1,4-di(pyridin-4-yl)benzene (L7), 3,5-di(pyridin-3-yl)-1,2,4-thiadiazole (L8) and 3,5-di(pyridin-4-yl)-1,2,4-thiadiazole (L9) to afford a range of 1-D polymers such as as [Ph6B2Si2O4].L1 (4), [Ph6B2Si2O4].L2 (5), [Ph6B2Si2O4].L3 0.5(CH2Cl2) (6), [Ph6B2Si2O4].L4 (7), [Ph6B2Si2O4].L5 (8), [Ph6B2Si2O4].2L9. 2[PhB(OH)2] (14) as well as a short polymeric structure [Ph6B2Si2O4].L8 (13). In addition, other compounds such as Ph8B4Si2O6.L6 (9), 4(C12H12O2Si).3(C10H8N4) (10), Ph4Si2(OH)4.2L7 (11) and Ph8B4Si2O6.L7 (12) were formed due to ring contraction readiness of compound (3). These compounds displayed extended inter- and intra-molecular π-π and other forms of π-interactions as well as hydrogen bonding in their crystal packings. Furthermore, novel silicon-based tetrakis-, tris- and di- aryl-pyridine linkers such as tetrakis(4-(pyridine-4-vinyl)phenyl)silane (L10), tri(4-(pyridine-4-vinyl)phenyl)methylsilane (L11), bis(4-(pyridine-4- vinyl)phenyl)dimethylsilane (L12) tetrakis(4-(pyridine-4-vinyl)biphenyl)silane L13), tri(4- (pyridine-4-vinyl)biphenyl)methylsilane (L14), as well as aryl-carboxylic acid linkers such as silane tetrakis(biphenyl-4-carboxylic acid) (L15) and silane tris(biphenyl-4-carboxylic acid) (L16) have been synthesized from their corresponding aryl-bromine precursors. Treatment of (L10) with Zn(CH3COO)2 and Zn(NO3)2.6H2O give a 2-D (MOF) (17) and a 3-D MOF (18) respectively. While (L15) solvothermally formed MOF (19) after treatment with Zn(NO3)2.6H2O in solvent mixture of H2O/DMA. MOF (17) possesses a pore size of 18.5 Å iv with no interpenetration of channels while (18) exhibits a five-fold interpenetration of channels as well as two types of pores with length and width of 31.42 and 24.62 Å for the big pores and 15.70 and 12.20 Å for the small pores respectively. MOF (19) exhibits a pore diameter of 17.06 Å.