cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Abstract Canonical Inference
Creators: name: Bonacina, Maria Paola
name: Dershowitz, Nachum
Publisher: name: arXiv
Year: 2004
Subjects: subject: Logic in Computer Science (cs.LO)
subject: Symbolic Computation (cs.SC)
subject: FOS: Computer and information sciences

description: An abstract framework of canonical inference is used to explore how different proof orderings induce different variants of saturation and completeness. Notions like completion, paramodulation, saturation, redundancy elimination, and rewrite-system reduction are connected to proof orderings. Fairness of deductive mechanisms is defined in terms of proof orderings, distinguishing between (ordinary) "fairness," which yields completeness, and "uniform fairness," which yields saturation.
description: 28 pages, no figures, to appear in ACM Trans. on Computational Logic
Molecular modeling of aqueous electrolytes at interfaces: effects of long-range dispersion forces and of ionic charge rescaling
Creators: name: Breton, Guillaume Le
name: Joly, Laurent
Publisher: name: arXiv
Year: 2020
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Molecular dynamics simulations of aqueous electrolytes generally rely on empirical force fields, combining dispersion interactions - described by a truncated Lennard-Jones (LJ) potential - and electrostatic interactions - described by a Coulomb potential computed with a long-range solver. Recently, force fields using rescaled ionic charges (electronic continuum correction, ECC), possibly complemented with rescaling of LJ parameters (electronic continuum correction rescaled, ECCR), have shown promising results in bulk, but their performance at interfaces has been less explored. Here we started by exploring the impact of the LJ potential truncation on the surface tension of a sodium chloride aqueous solution. We show a discrepancy between the numerical predictions for truncated LJ interactions with a large cutoff and for untruncated LJ interactions computed with a long-range solver, which can bias comparison of force field predictions with experiments. Using a long-range solver for LJ interactions, we then show that an ionic charge rescaling factor chosen to correct long-range electrostatic interactions in bulk also describes accurately image charge repulsion at the liquid-vapor interface, and that the rescaling of LJ parameters in ECCR models - aimed at capturing local ion-ion and ion-water interactions in bulk - also describes well the formation of an ionic double layer at the liquid-vapor interface. Overall, these results suggest that the molecular modeling of aqueous electrolytes at interfaces would benefit from using long-range solvers for dispersion forces, and from using ECCR models, where the charge rescaling factor should be chosen to correct long-range electrostatic interactions.
description: Main text: 6 pages, 3 figures; Supplemental material: 9 pages, 3 figures; to be published in J. Chem. Phys
Διερεύνηση των υποκειμενικών συμπτωμάτων που σχετίζονται με την περιεμμηνόπαυση σε γυναίκες με και χωρίς ρευματοπάθειες με στόχο τον καθορισμό της βέλτιστης φαρμακοθεραπείας των μυοσκελετικών πόνων
Creators: name: Κιοσές, Νικόλαος Κυριάκου
Publisher: name: Aristotle University of Thessaloniki
Year: 2021
Subjects: Μυοσκελετικοί πόνοι
Ρευυματικές παθήσεις
Περιεμμηνόπαυση
Myoskeletal pain
Reumatic disease
Perimenopause

description: Σχεδιαστικέ και εκπονήθηκε έρευνα σκοπός της οποίας είναι η μελέτη του μοσκελετικού πόνου σε γυναίκες περιεμμηνοπαυσιακής ηλικίας με ρευματική νόσο. Σε δείγμα σαράντα τριών (43) γυναικών, κατόπιν προσωπικής συνέντευξης, συμπληρώθηκε το ερωτηματολόγιο του NAMS σχετικά με το ιατρικό και γυναικολογικό ιστορικό τους. Από τα βιβλιογραφικά δεδομένα είναι γνωστή η συσχέτιση των ρευματικών παθήσεων με το μυοσκελετικό πόνο, όμως στην εν λόγω μελέτη και από τα δεδομένα που προέκυψαν η συσχέτιση αυτή δείχνει να μην επαληθεύεται. Οι λόγοι για τους οποίους εμφανίζεται αυτή η αναντιστοιχία θα πρέπει να αναζητηθούν στο μέγεθος και τον τρόπο επιλογής του δείγματος, στη μέθοδο δειγματοληψίας και στη σύνταξη του ερωτηματολογίου. Ο λεπτομερέστερος σχεδιασμός της μελέτης με μεγαλύτερο δείγμα και διαφορετικό ερωτηματολόγιο είναι πιθανό να δώσει απάντηση στο αρχικό μας ερώτημα.
description: A research aimed to study the myoskeletal pain in women at perimenopause with rheumatic disease was developed and conducted. In a sample of forty three (43) women, after personal interview, the “Menopause Health Questionnaire” of NAMS was completed, regarding their medical and gynecological health history. From bibliography is known the correlation between rheumatic diseases and myoskeletal pain, but in this study and from the data we have gather, this correlation seems not to be verified. The reasons this mismatch is occurred should be searched at the volume and the way of sample choice, at the sampling method and at the writing of the questionnaire. More detailed design of the study with bigger sample and a different questionnaire possibly will answer our initial question.
The RAND/PPMD Patient-Centeredness Method: a novel online approach to engaging patients and their representatives in guideline development
Creators: name: Khodyakov, Dmitry
name: Denger, Brian
name: Grant, Sean P.
name: Kinnett, Kathi
name: Armstrong, Courtney
name: Martin, Ann
name: Peay, Holly
name: Coulter, Ian
name: Hazlewood, Glen
Publisher: name: Health Research Alliance
Year: 2020
Subjects: subject: 110399 Clinical Sciences not elsewhere classified
subject: FOS: Clinical medicine

description: A new method for engaging patients and caregivers in guideline development
Practical Considerations for Using Online Methods to Engage Patients in Guideline Development
Creators: name: Grant, Sean P.
name: Hazlewood, Glen
name: Peay, Holly
name: Lucas, Ann
name: Coulter, Ian
name: Khodyakov, Dmitry
Publisher: name: Health Research Alliance
Year: 2020
Subjects: Health Care

description: This articles describes practical considerations for using online methods to engage patients in the process of clinical guideline development
Participant experiences with a new online modified-Delphi approach for engaging patients and caregivers in developing clinical guidelines
Creators: name: Armstrong, Courtney
name: Grant, Sean P.
name: Kinnett, Kathi
name: Denger, Brian
name: Martin, Ann
name: Coulter, Ian
name: Booth, Marika
name: Khodyakov, Dmitry
Publisher: name: Health Research Alliance
Year: 2020
Subjects: subject: 110399 Clinical Sciences not elsewhere classified
subject: FOS: Clinical medicine

description: This article describes participant experiences with a new online approach for engaging patients and caregivers in developing clinical guidelines
Integration von Geflüchteten und die Rolle der Aufnahmegesellschaft: Konzeptionelle Überlegungen und ihre Anwendung auf ländliche Räume
Creators: name: Glorius, Birgit
name: Bürer, Miriam
name: Schneider, Hanne
name: Glorius, Birgit
name: Bürer, Miriam
name: Schneider, Hanne
Publisher: name: Unknown
Year: 2019
Subjects: subject: Community/Rural/Urban Development
subject: Labor and Human Capital
subject: Aufnahmegesellschaft
subject: Geflüchtete
subject: Integration
subject: Ländliche Regionen
subject: Migration
subject: Rezeptivität
subject: host society
subject: refugees
subject: integration
subject: rural regions
subject: migration
subject: receptivity

description: This working paper addresses the attitudes of the host society as an important component of immigrant integration. Currently, the research on attitudes towards immigration is dominated by assumptions focusing on the rejection of "strangers", while theories for explaining tolerant societal attitudes are less reflected in population surveys. This working paper introduces major con-ceptual approaches for researching attitudes that can foster integration, with a particular focus on the concept of "receptivity". The authors also provide an overview of the current state of research on the integration of migrants in rural areas. Furthermore, they develop a research concept for investigating reception patterns, attitudes of the host society and local discourses and their implications for the integration of refugees.
description: DOI:10.3220/WP1550743518000
Epithelial de-differentiation triggered by co-ordinate epigenetic inactivation of the EHF and CDX1 transcription factors drives colorectal cancer progression
Creators: name: Luk, Ian
name: Jenkins, Laura
name: Schoffer, Kael
name: Ng, Irvin
name: Tse, Janson
name: Mouradov, D
name: Kaczmarczyk, S
name: Nightingale, R
name: Burrows, Allan
name: Anderson, Robin
name: Arango, D
name: Dopeso, H
name: Croft, L
name: Richardson, MF
name: Sieber, OM
name: Liao, Yang
name: Mooi, JK
name: Vukelic, Natalia
name: Reehorst, Camilla Marstrander
name: Afshar-Sterle, S
name: Whitehall, VLJ
name: Fennell, L
name: Abud, HE
name: Tebbutt, Niall
name: Phillips, WA
name: Williams, David
name: Shi, Wei
name: Mielke, Lisa
name: Ernst, Matthias
name: Dhillon, Amardeep
name: Clemons, NJ
name: Mariadason, John
Publisher: name: La Trobe
Year: 2023
Subjects: classificationCode: 321199
subject: Oncology and carcinogenesis not elsewhere classified

description: Colorectal cancers (CRCs) often display histological features indicative of aberrant differentiation but the molecular underpinnings of this trait and whether it directly drives disease progression is unclear. Here, we identify co-ordinate epigenetic inactivation of two epithelial-specific transcription factors, EHF and CDX1, as a mechanism driving differentiation loss in CRCs. Re-expression of EHF and CDX1 in poorly-differentiated CRC cells induced extensive chromatin remodelling, transcriptional re-programming, and differentiation along the enterocytic lineage, leading to reduced growth and metastasis. Strikingly, EHF and CDX1 were also able to reprogramme non-colonic epithelial cells to express colonic differentiation markers. By contrast, inactivation of EHF and CDX1 in well-differentiated CRC cells triggered tumour de-differentiation. Mechanistically, we demonstrate that EHF physically interacts with CDX1 via its PNT domain, and that these transcription factors co-operatively drive transcription of the colonic differentiation marker, VIL1. Compound genetic deletion of Ehf and Cdx1 in the mouse colon disrupted normal colonic differentiation and significantly enhanced colorectal tumour progression. These findings thus reveal a novel mechanism driving epithelial de-differentiation and tumour progression in CRC.
Localization and Coherence in Nonintegrable Systems
Creators: name: Rumpf, Benno
name: Newell, Alan C.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: We study the irreversible dynamics of nonlinear, nonintegrable Hamiltonian oscillator chains approaching their statistical asympotic states. In systems constrained by more than one conserved quantity, the partitioning of the conserved quantities leads naturally to localized and coherent structures. If the phase space is compact, the final equilibrium state is governed by entropy maximization and the final coherent structures are stable lumps. In systems where the phase space is not compact, the coherent structures can be collapses represented in phase space by a heteroclinic connection to infinity.
description: 41 pages, 15 figures
Additional file 3 of Barriers for early initiation and exclusive breastfeeding up to six months in predominantly rural Sri Lanka: a need to strengthen policy implementation
Creators: name: Agampodi, Thilini Chanchala
name: Neerodha Kithmini Dharmasoma
name: Iresha Sandamali Koralagedara
name: Thushari Dissanayaka
name: Janith Warnasekara
name: Suneth Buddhika Agampodi
name: Perez-Escamilla, Rafael
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Sociology
subject: FOS: Sociology
subject: Cancer
subject: Computational Biology

description: Additional file 3. Appendix 3
Possible Optical/Infrared Jet Emission in 4U 1543-47
Creators: name: Buxton, M.
name: Bailyn, C.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have taken optical and infrared observations during the 2002 outburst of the soft X-ray transient, 4U 1543-47. A secondary maximum occurs in the lightcurves during the outburst decline. This feature is much stronger at infrared wavelengths than optical. We have applied single blackbody, multicolor blackbody and broken-power law models to the optical/infrared spectral energy distribution of the secondary maximum and find that the broken power-law provides the best fit. We therefore conclude that the secondary maximum emission originates from a jet. We also show the most recent lightcurves of the 2002/2003 outburst of GX 339-4 in which a secondary maximum appears. This leads us to the conclusion that secondary maxima may be a common occurrence in soft X-ray transients during outburst decline which appear after the object transitions into the low-hard state. Infrared observations of such phenomena will give reliable triggers for multiwavelength observations, allowing us to greatly improve our knowledge of jet formation and behavior, and how this relates to the accretion geometry.
description: 4 pages, to appear in ``X-Ray Timing 2003: Rossi and Beyond'' conference proceedings, references now visible
Closed String Tachyons on C/Z_N
Creators: name: Sarkar, S.
name: Sathiapalan, B.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We analyse the condensation of closed string tachyons on the $C/Z_N$ orbifold. We construct the potential for the tachyons upto the quartic interaction term in the large $N$ limit. In this limit there are near marginal tachyons. The quartic coupling for these tachyons is calculated by subtracting from the string theory amplitude for the tachyons, the contributions from the massless exchanges, computed from the effective field theory. We argue that higher point interaction terms are are also of the same order in 1/N as the quartic term and are necessary for existence of the minimum of the tachyon potential that is consistent with earlier analysis.
description: 19 pages, 1 figure; comments added about $N$ dependence of contact term
Dynamic changes in Id3 and E-protein activity orchestrate germinal center and plasma cell development
Creators: name: Gloury, R
name: Zotos, D
name: Zuidscherwoude, M
name: Masson, F
name: Liao, Yang
name: Hasbold, J
name: Corcoran, LM
name: Hodgkin, Philip
name: Belz, GT
name: Shi, Wei
name: Nutt, SL
name: Tarlinton, DM
name: Kallies, A
Publisher: name: La Trobe
Year: 2023
Subjects: classificationCode: 32
subject: Biomedical and clinical sciences
classificationCode: 42
subject: Health sciences
subject: FOS: Health sciences

description: The generation of high-affinity antibodies requires germinal center (GC) development and differentiation of long-lived plasma cells in a multilayered process that is tightly controlled by the activity of multiple transcription factors. Here, we reveal a new layer of complexity by demonstrating that dynamic changes in Id3 and E-protein activity govern both GC and plasma cell differentiation. We show that down-regulation of Id3 in B cells is essential for releasing E2A and E2-2, which in a redundant manner are required for antigen-induced B cell differentiation. We demonstrate that this pathway controls the expression of multiple key factors, including Blimp1, Xbp1, and CXCR4, and is therefore critical for establishing the transcriptional network that controls GC B cell and plasma cell differentiation.
Multi-Secant Lemma
Creators: name: Kaminski, Yirmeyahu J.
name: Kanel-Belov, Alexei
name: Teicher, Mina
Publisher: name: arXiv
Year: 2020
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: We present a new generalization of the classical trisecant lemma. Our approach is quite different from previous generalizations. Let $X$ be an equidimensional projective variety of dimension $d$. For a given $k \leq d + 1$, we are interested in the study of the variety of $k$-secants. The classical trisecant lemma just considers the case where $k = 3$ while elsewhere the case $k = d + 2$ is considered. Secants of order from $4$ to $d + 1$ provide service for our main result. In this paper, we prove that if the variety of $k$-secants ($k \leq d + 1$) satisfies the three following conditions: (i) trough every point in $X$, passes at least one $k$-secant, (ii) the variety of $k$-secant satisfies a strong connectivity property that we defined in the sequel, (iii) every $k$-secant is also a ($k+1$)-secant, then the variety $X$ can be embedded into $P^{d+1}$. The new assumption, introduced here, that we called strong connectivity is essential because a naive generalization that does not incorporate this assumption fails as we show in some example. The paper concludes with some conjectures concerning the essence of the strong connectivity assumption.
description: arXiv admin note: text overlap with arXiv:0712.3878
Τζάνι Ροντάρι: Το Λογοτεχνικό του έργο και οι Συγγραφικές συνιστώσες του
Creators: name: Σάββα, Στυλιανή Γεωργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2021
Subjects: Ροντάρι
Παιδική λογοτεχνία.
Rodari
Children’s literature

description: Η συγκεκριμένη διπλωματική εργασία, έχει σκοπό τον εντοπισμό και προσδιορισμό των βασικών χαρακτηριστικών της γραφής του Τζάνι Ροντάρι. Μέσω της ανάλυσης του υλικού ,εντοπίζονται και σχολιάζονται τα χαρακτηριστικά που διακρίνουν τη μεταμοντέρνα μυθοπλασία ( μαγικός ρεαλισμός, υπερβολή, διακειμενικότητα, γλωσσικά παιχνίδια, παρωδία, αυτοαναφορικότητα). Επιπλέον, πραγματοποιείται εξέταση της αφήγησης, η οπτική γωνία του αφηγητή, οι χαρακτήρες, λαμβάνοντας πάντα υπόψη το κοινωνικοπολιτικό πλαίσιο στο οποίο γράφει ο συγγραφέας. Επιπλέον ,αναφέρεται τι είναι η Δημιουργική Γραφή όπως επίσης η σχέση της με τον Ροντάρι. Μέσα από την ανάλυση του έργου του Ροντάρι, οδηγούμαστε στο συμπέρασμα ότι είναι ένας ανατρεπτικός συγγραφέας ,ο οποίος έφερε μια ανανέωση στη μορφή ,αλλά και το περιεχόμενο της παιδικής λογοτεχνίας. Ο συγκεκριμένος συγγραφέας, καταφέρνει να συνδυάζει τη νεοτερικότητα με την παράδοση. Χρησιμοποιεί τα εργαλεία της μεταμοντέρνας γραφής ώστε να αποκαλύψει τις συμβάσεις που κρύβει η μυθοπλασία. Ωστόσο, παραμένει πιστός σε ένα από τα χαρακτηριστικά της παιδικής λογοτεχνίας και αυτό είναι ο διδακτισμός. Στο δεύτερο μέρος της εργασίας ,παρατίθενται ιστορίες που προσπαθούν να μιμηθούν το ύφος του συγγραφέα
description: This thesis aims at highlighting the subversive morphological elements of the writing in Rodari texts. The era it was written contributes to the implementation of the examination of the writer’s body of work according to this era. Through the analysis of the material characteristics that discern postmodernism (magical realism, exaggeration, intertextuality ,linguistic games, self-referentiality) are traced and commented on. Moreover examination of the narrative, the narrator's point of view, the characters, the role of the real reader and the understood reader during the reading process are conducted,always taking into account the socio-political context. Furthermore, this thesis, is analyzing, the relationship between Rodari and creative writing.Through the analysis of Rodari's work, we are led to the conclusion that he is a subversive writer who brought a renewal to the form and content of children's literature. This particular author manages to combine modernity with tradition, using the tools of postmodern writing to reveal the conventions that fiction hides. The second part of this thesis presents stories that try to imitate the author's style
Towards temperature-induced topological phase transition in SnTe: A first principles study
Creators: name: Querales-Flores, José D.
name: Aguado-Puente, Pablo
name: Dangić, Đorđe
name: Cao, Jiang
name: Chudzinski, Piotr
name: Todorov, Tchavdar N.
name: Grüning, Myrta
name: Fahy, Stephen
name: Savić, Ivana
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: The temperature renormalization of the bulk band structure of a topological crystalline insulator, SnTe, is calculated using first principles methods. We explicitly include the effect of thermal-expansion-induced modification of electronic states and their band inversion on electron-phonon interaction. We show that the direct gap decreases with temperature, as both thermal expansion and electron-phonon interaction drive SnTe towards the phase transition to a topologically trivial phase as temperature increases. The band gap renormalization due to electron-phonon interaction exhibits a non-linear dependence on temperature as the material approaches the phase transition, while the lifetimes of the conduction band states near the band edge show a non-monotonic behavior with temperature. These effects should have important implications on bulk electronic and thermoelectric transport in SnTe and other topological insulators.
description: 10 pages, 8 figures. Accepted for publication in Phys. Rev. B on June 8, 2020
Effect of exercise-based management on multidirectional instability of the glenohumeral joint: a pilot randomised controlled trial protocol
Creators: name: Warby, Sarah
name: Ford, Jon
name: Hahne, Andrew
name: Watson, Lynnette
name: Balster, S
name: Lenssen, Ross
name: Pizzari, Tania
Publisher: name: La Trobe
Year: 2023
Subjects: classificationCode: 32
subject: Biomedical and clinical sciences
classificationCode: 3202
subject: Clinical sciences
classificationCode: 42
subject: Health sciences
subject: FOS: Health sciences
classificationCode: 4201
subject: Allied health and rehabilitation science
classificationCode: 52
subject: Psychology
subject: FOS: Psychology

description: Introduction: The most commonly recommended treatment for multidirectional instability (MDI) of the shoulder is exercise. Despite this recommendation, there is limited evidence to support the effectiveness of exercise. The aim of this paper is to describe a pilot randomised controlled trial comparing the effectiveness of 2 exercise programmes on outcomes of participants with MDI. Methods and analysis: Consenting participants between 12 and 35 years, with non-traumatic MDI will be randomly allocated to participate in either the Rockwood Instability programme or the Watson MDI programme. Both programmes involve 1 consultation per week for 12 weeks with a physiotherapist to prescribe and progress a home exercise programme. Outcomes will be assessed at baseline, 6, 12, 24 and 52 weeks. Primary outcome measures include the Melbourne Instability Shoulder Score and Western Ontario Shoulder Index. Secondary outcomes include scapular coordinates, scapular upward rotation angles, muscle strength, symptomatic onset, limiting factor and angle of limiting factor in abduction range, incidence of complete glenohumeral joint dislocation, global rating of change, satisfaction scores, the Orebro Musculoskeletal Pain Questionnaire, adverse events and compliance with the home exercise programme. Data will be analysed on intention-to-treat principles and a per protocol basis. Discussion: This trial will evaluate whether there are differences in outcomes between the Rockwood and the Watson MDI programmes for participants with MDI.
"I’ve never been a yes person": Decision-making participation and self-conceptualization after severe traumatic brain injury
Creators: name: Knox, Lucy
name: Douglas, Jacinta
name: Bigby, Christine
Publisher: name: La Trobe
Year: 2023
Subjects: classificationCode: 32
subject: Biomedical and clinical sciences
classificationCode: 42
subject: Health sciences
subject: FOS: Health sciences
classificationCode: 4203
subject: Health services and systems
classificationCode: 44
subject: Human society

description: Purpose: Although adults who sustain a severe traumatic brain injury (TBI) require support to make decisions in their lives, little is known about their experience of this process. The aim of this study was to explore how participation in decision making contributes to self-conceptualization in adults with severe TBI. Method: We used constructivist grounded theory methods. Data included 20 in-depth interviews with adults with severe TBI. Through a process of constant comparison, analysis involved open and focused coding until clear categories emerged and data saturation was achieved. Results: Self-conceptualization emerged as a complex and multifaceted process, as individuals with TBI aimed to reestablish a sense of autonomy. We describe a recursive relationship in which decision-making participation assists the dynamic construction of self, and self-concept contributes to the experience of making decisions. The role of an individual’s social support network in acting as a bridge between participation and self-conceptualization is presented. Conclusions: Findings emphasize that contributing to decisions about one’s own goals across a range of life areas can reinforce a positive self-concept. It is vital that supporters understand that participation in decision making provides a pathway to conceptualizing self and aim to maximize the person’s participation in the decision-making process.
On the wind-driven relaxation cycle in accretion disks
Creators: name: Ganguly, Shalini
name: Proga, Daniel
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: A disk wind can cause perturbations that propagate throughout the disk via diffusive processes. On reaching the inner disk, these perturbations can change the disk luminosity, which in turn, can change the wind mass loss rate, $\dot{M}_w$. It has been argued that this so-called "wind driven relaxation cycle" might explain the observed variability in some disk accreting objects. Here, we study the response of the innermost mass accretion rate $\dot{M}_a$ to the loss of matter at different rates and radii. We allow the wind launching radius, $R_L$, to scale with $\dot{M}_a$. We computed a grid of time-dependent models for various $\dot{M}_w$-$\dot{M}_a$ and $R_{L}$-$\dot{M}_a$ dependencies. We find that the disk behaviour significantly differs for the 'variable $R_L$' case compared to the 'fixed $R_L$' case. In particular, much stronger winds are required to destabilize the disk in the former than the latter case. However, the $\dot{M}_a$ amplitude does not grow significantly even for unstable cases because the oscillations saturate at a low level either due to disk depletion or due to the wind being launched at very small radii, or both. This result implies that disk winds are unlikely to be responsible for state transitions as those require large changes in the inner disk. Despite modest changes at the inner disk regions, the disk surface density at large radii can vary with a large amplitude, i.e., from 0 to a few factors of the steady state value. This dramatic variation of the outer disk could have observable consequences.
description: 10 pages, 7 figures, 2 tables; Accepted for publication in ApJ
Carrier States and Ferromagnetism in Diluted Magnetic Semiconductors
Creators: name: Takahashi, Masao
name: Kubo, Kenn
Publisher: name: arXiv
Year: 2003
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Applying the dynamical coherent potential approximation to a simple model, we have systematically studied the carrier states in $A_{1-x}$Mn$_xB$-type diluted magnetic semiconductors (DMS's). The model calculation was performed for three typical cases of DMS's: The cases with strong and moderate exchange interactions in the absence of nonmagnetic potentials, and the case with strong attractive nonmagnetic potentials in addition to moderate exchange interaction. When the exchange interaction is sufficiently strong, magnetic impurity bands split from the host band. Carriers in the magnetic impurity band mainly stay at magnetic sites, and coupling between the carrier spin and the localized spin is very strong. The hopping of the carriers among the magnetic sites causes ferromagnetism through a {\it double-exchange (DE)-like} mechanism. We have investigated the condition for the DE-like mechanism to operate in DMS's. The result reveals that the nonmagnetic attractive potential at the magnetic site assists the formation of the magnetic impurity band and makes the DE-like mechanism operative by substantially enhancing the effect of the exchange interaction. Using conventional parameters we have studied the carrier states in Ga$_{1-x}$Mn$_x$As. The result shows that the ferromagnetism is caused through the DE-like mechanism by the carriers in the bandtail originating from the impurity states.
description: 20 pages, 14 figures
IFAD RESEARCH SERIES 36 - Who works in agriculture? Exploring the dynamics of youth involvement in the agri-food systems of Tanzania and Malawi
Creators: name: Kashi, Kafle
name: Paliwal, Neha
name: Benfica, Rui
name: Kashi, Kafle
name: Paliwal, Neha
name: Benfica, Rui
Publisher: name: Unknown
Year: 2019
Subjects: subject: Community/Rural/Urban Development
subject: agri-food system
subject: agriculture
subject: youth
subject: tanzania
subject: malawi
subject: rural development

description: This analysis examines the dynamics of youth employment in agriculture and the agri-food system in Tanzania and Malawi - in and out of agriculture and the agri-food system. The study finds that when extending the definition of a farmer beyond household heads, that the average age of individuals participating in agriculture is 34 years in Tanzania, and 31 years in Malawi. In addition, there is a high degree of short-term stability in farming in both countries. 59 per cent of rural youth in Tanzania and 56 per cent in Malawi are consistently engaged in farming. While the figures are encouraging, it is likely that the poor economic prospects outside farming are what is driving strong participation in single-occupation farming. To increase youth employment, it is recommended that Tanzania and Malawi diversify the rural economy by creating opportunities in the agri-food system.
Additional file 4 of Barriers for early initiation and exclusive breastfeeding up to six months in predominantly rural Sri Lanka: a need to strengthen policy implementation
Creators: name: Agampodi, Thilini Chanchala
name: Neerodha Kithmini Dharmasoma
name: Iresha Sandamali Koralagedara
name: Thushari Dissanayaka
name: Janith Warnasekara
name: Suneth Buddhika Agampodi
name: Perez-Escamilla, Rafael
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Sociology
subject: FOS: Sociology
subject: Cancer
subject: Computational Biology

description: Additional file 4. Appendix 4
Radiosensitizing activity of novel small molecule BRCA1 and DNA-PK inhibitors in lung and colon carcinoma
Creators: name: Radhamani, Suraj
name: Suraj, Rejitha
name: Meehan-Andrews, Terri
name: Al-Rawi, Jasim
name: Bradley, Christopher
Publisher: name: La Trobe
Year: 2023
Subjects: classificationCode: 31
subject: Biological sciences
subject: FOS: Biological sciences
classificationCode: 3101
subject: Biochemistry and cell biology
classificationCode: 32
subject: Biomedical and clinical sciences
classificationCode: 3211
subject: Oncology and carcinogenesis

description: The DNA dependant protein kinase (DNA-PK) enzyme plays a major part in the repair of double stranded breaks induced by radiation and hence in the radio-resistance of tumour cells. Inhibitors of DNA-PK have been tested successfully in the past for their ability to sensitize cancer cells to the effects of radiation. Here we present two novel benzoxazines (LTU28 and LTU31) and analyse their ability to cause sensitization of cancer cells to radiation. There was a significant reduction in survival rate, increase in apoptosis and inhibition in autophosphorylation of DNA-PK and AKT1 after treating them with LTU28 concomitantly with radiation. The mechanism of action by LTU28 appears to be through inhibition of DNA-PK leading to delayed DNA repair and promotion of apoptosis. LTU31 showed an inhibition in the phosphorylation of BRCA1, thereby blocking DNA repair by homologous recombination.
Μελέτη των μαγνητικών ιδιοτήτων θραυσμάτων κεραμικής από τρεις Νεολιθικές θέσεις της Ελλάδας
Creators: name: Γεωργιάδη, Δέσποινα Παναγιώτη
Publisher: name: Aristotle University of Thessaloniki
Year: 2021
Subjects: Μαγνητικές Ιδιότητες
Θραύσματα κεραμικά
Νεολιθική περίοδος
Magnetic Properties
Ceramic Fragments
Neolithic period

description: Στη παρούσα διπλωματική εργασία με τίτλο «Μελέτη των μαγνητικών ιδιοτήτων θραυσμάτων κεραμικής από τρεις Νεολιθικές θέσεις της Ελλάδας» παρουσιάζονται η έρευνα και η μελέτη των μαγνητικών ιδιοτήτων, νεολιθικών δειγμάτων κεραμικής που προέρχονται από τρείς περιοχές της Ελλάδας. Πιο αναλυτικά, αναφέρονται τα αποτελέσματα από μαγνητικές μετρήσεις σε 40 δείγματα κεραμικών (όστρακα) Μέσης και Νεότερης Νεολιθικής περιόδου από τις εξής περιοχές του Ελληνικού χώρου: την Άψαλο νομού Πέλλας, το Καστρί Θάσου και το Σπήλαιο Σαρακηνού από τη Βοιωτία. Επίσης, μέρος της διπλωματικής αποτελεί η πειραματική έρευνα με ορισμένες μεθόδους, όπως την μέτρηση της παραμένουσας μαγνήτισης με περιστρεφόμενο μαγνητόμετρο, την απομαγνήτιση με εναλλασσόμενο πεδίο (AF), την ισόθερμη μαγνήτιση (IRM) και τέλος τις θερμομαγνητικές καμπύλες. Οι μετρήσεις έγιναν στο εργαστήριο της γεωφυσικής του τομέα Γεωλογίας με σκοπό τον λεπτομερή χαρακτηρισμό των μαγνητικών ιδιοτήτων της κεραμικής, έτσι ώστε να γίνει δυνατή η μελλοντική της χρήση σε ένα πείραμα αρχαιοέντασης. Τέλος, τα συμπεράσματα που παρουσιάζονται στη παρούσα διπλωματική είναι σημαντικά για την πληρέστερη μελέτη των αρχαιολογικών ευρημάτων στον Ελλαδικό χώρο και συμβάλλουν στην καλύτερη κατανόηση της πολιτισμικής μας κληρονομιάς.
description: This dissertation entitled "Study of the magnetic properties of ceramic fragments from three Neolithic locations in Greece" presents the research and study of the magnetic properties of Neolithic ceramic samples from three regions of Greece. Specifically, we report the results of magnetic measurements on 40 Middle and Late Neolithic period ceramic (shell) samples from the following areas in Greece: Apsalos in the Pella Prefecture, Kastri in Thasos, and the Sarakinos Cave in Boeotia. Furthermore, part of the dissertation is professional research through certain methods such as measuring the remaining magnetization with a rotating magnetometer, demagnetization through an alternating field (AF), isothermal magnetization(IRM) and finally thermomagetic curves. The measurements were made in the laboratory of Geology in the Faculty of Geology aiming to describe in detail the magnetic properties of ceramics, so as to allow its future use in an experiment of archaeomagnitude. Finally, the conclusions presented in this dissertation are important for a more complete study of archaeological findings in Greece and contribute to a better understanding of our cultural heritage.
description: Σε συνεργασία με: Ανώτατη Εκκλησιαστική Ακαδημία Θεσσαλονίκης
Are you a global citizen?
Creators: name: Arnold, Christine
Publisher: name: The University of British Columbia
Year: 2013

description: Global citizenship is central to the “Canadian identity,” necessitating the development of a kind of citizen who “is aware of the wider world and has a sense of their own role as a world citizen” (Brigham, 2011, p. 16). To address this, the prevalence of international service learning programs (such as “Me to We”, an organization that provides youth the opportunity to travel to a developing country and take part in a service project such as building a school) has increased in secondary schools in recent years. I contend that it is necessary to explore how secondary students understand notions of global citizenship as it relates to structural inequality in the context of international service learning. This understanding will make possible the design of service-learning opportunities in a way that does not reproduce the colonial subject identity of the “helper.”
Nanomechanical topological insulators with an auxiliary orbital degree of freedom
Creators: name: Ma, Jingwen
name: Xi, Xiang
name: Li, Yuan
name: Sun, Xiankai
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Discrete degrees of freedom, such as spin and orbital, can provide intriguing strategies to manipulate electrons, photons, and phonons. With a spin degree of freedom, topological insulators have stimulated intense interests in condensed-matter physics, optics, acoustics, and mechanics. However, orbital as another fundamental attribute in crystals has seldom been investigated in topological insulators. Here, we invent a new type of topological insulators with an auxiliary orbital degree of freedom on a nanomechanical platform. We experimentally realized nanomechanical topological insulators where the orbital can arbitrarily be manipulated by the crystal. Harnessing this unique feature, we demonstrated adiabatic transition between distinct topological edge states, which is a crucial functionality for complicated systems that involve distinct topological edge channels. Beyond the one-dimensional edge states, we further constructed zero-dimensional Dirac-vortex states. Our results have unveiled unprecedented strategies to manipulate topological phase transitions and to study topological phases of matter on an integrated platform.
description: Nat. Nanotechnol. (2021)
Two New Integrable Lattice Hierarchies Associated With A Discrete Schrodinger Nonisospectral Problem and Their Infinitely Many Conservation Laws
Creators: name: Zhu, Zuo-nong
name: Xue, Weimin
Publisher: name: arXiv
Year: 2003
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: In this article, by means of using discrete zero curvature representation and constructing opportune time evolution problems, two new discrete integrable lattice hierarchies with n-dependent coefficients are proposed, which related to a new discrete Schrödinger nonisospectral operator equation. The relation of the two new lattice hierarchies with the Volterra hierarchy is discussed. It has been shown that one lattice hierarchy is equivalent to the positive Volterra hierarchy with n-dependent coefficients and another lattice hierarchy with isospectral problem is equivalent to the negative Volterra hierarchy. We demonstrate the existence of infinitely many conservation laws for the two lattice hierarchies and give the corresponding conserved densities and the associated fluxes formulaically. Thus their integrability is confirmed.
description: 14 pages
Three new bioactive diterpenoids from the roots of Croton crassifolius
Creators: name: Ye, Guo-Hua
name: Jun-Juan Xue
name: Liang, Wei-Ling
name: Shou-Juan Yang
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Space Science
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
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: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Inorganic Chemistry

description: Phytochemical investigation of Croton crassifolius led to the isolation of two new halimane diterpenoids (1 and 2), a new nor-clerodane diterpenoid (3), along with three known analogues (4–6). Their structures including absolute configurations were elucidated by spectroscopic analysis, single-crystal X-ray diffraction, and CD analysis. All isolates were evaluated for their inhibitory effects on the nitric oxide (NO) production induced by lipopolysaccharide (LPS) in RAW264.7 macrophage cells, and compound 1 exhibited moderate inhibition of NO production with an IC50 value of 25.8 ± 0.9 μM.
The Lack of Very Ultraluminous X-ray Sources in Early-type Galaxies
Creators: name: Irwin, Jimmy A.
name: Bregman, Joel N.
name: Athey, Alex E.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have searched for ultraluminous X-ray sources (ULXs) in a sample of 28 elliptical and S0 galaxies observed with Chandra. We find that the number of X-ray sources detected at a flux level that would correspond to a 0.3-10 keV X-ray luminosity of ~2 x 10^39 ergs/s or greater (for which we have used the designation very ultraluminous X-ray sources; VULXs) at the distance of each galaxy is equal to the number of expected foreground/background objects. In addition, the VULXs are uniformly distributed over the Chandra field of view rather than distributed like the optical light of the galaxies, strengthening the argument that the high flux sources are unassociated with the galaxies. We have also taken the VULX candidate list of Colbert and Ptak and determined the spatial distribution of VULXs in early-type galaxies and late-type galaxies separately. While the spiral galaxy VULXs are clearly concentrated toward the centers of the galaxies, the early-type galaxy VULXs are distributed randomly over the ROSAT HRI field of view, again indicating that they are not associated with the galaxies themselves. We conclude that with the exception of two rare high luminosity objects within globular clusters of the elliptical galaxy NGC1399, VULXs are generally not found within old stellar systems. However, we do find a significant population of sources with luminosities of 1-2 x 10^39 ergs/s that reside within the sample galaxies that can be explained by accretion onto 10-20 solar mass black holes. Given our results, we propose that ULXs be defined as X-ray sources with L_X(0.3-10 keV) > 2 x 10^39 ergs/s.
description: 5 pages in emulateapj style with 2 embedded Postscript figure, accepted by ApJ Letters
Pentacylic triterpenes from Lavandula coronopifolia: structure related inhibitory activity on α-glucosidase
Creators: name: Elsbaey, Marwa
name: Rogers Mwakalukwa
name: Kuniyoshi Shimizu
name: Tomofumi Miyamoto
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biochemistry
subject: Space Science
subject: Pharmacology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences

description: Ten pentacyclic triterpenes (1-10) were isolated from Lavandula coronopifolia. We evaluated their α-glucosidase inhibitory activity, and found that the aglycones, 1, 2, 3, 4, 7 and 10 showed superior IC50 values to the positive control. In order to explain the structural requirements for α-glucosidase inhibitory activity, eleven derivatives were prepared, including one new compound, 2-formyl-(A)1–19α-hydroxy-1-norursane-2, 12-dien-28-oic acid 10c. The results demonstrated that a free hydroxyl at ring-A and a free carboxylic group at position 28 are key structural features for the α-glucosidase inhibitory activity, also that an ursane skeleton is optimum for the activity. Additionally, enzyme kinetic analysis of pomolic acid 2, the most potent compound, revealed that it inhibited α-glucosidase in a mixed-type manner. The molecular docking simulation validated this type of inhibition and highlighted the role of the C-3 hydroxyl and C-28 carboxylic groups in interaction with the enzyme in silico.
Pattern Formation as a Signature of Quantum Degeneracy in a Cold Exciton System
Creators: name: Levitov, L. S.
name: Simons, B. D.
name: Butov, L. V.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The development of a Turing instability to a spatially modulated state in a photoexcited electron-hole system is proposed as a novel signature of exciton Bose statistics. We show that such an instability, which is driven by kinetics of exciton formation, can result from stimulated processes that build up near quantum degeneracy. In the spatially uniform 2d electron-hole system, the instability leads to a triangular lattice pattern while, at an electron-hole interface, a periodic 1d pattern develops. We analyze the mechanism of wavelength selection, and show that the transition is abrupt (type I) for the uniform 2d system, and continuous (type II) for the electron-hole interface.
description: 5 pages, 3 figures
Prediction of large barocaloric effects in thermoelectric superionic materials
Creators: name: Min, Jie
name: Sagotra, Arun K.
name: Cazorla, Claudio
Publisher: name: arXiv
Year: 2019
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We predict the existence of large barocaloric effects above room temperature in the thermoelectric fast-ion conductor Cu$_{2}$Se by using classical molecular dynamics simulations and first-principles computational methods. A hydrostatic pressure of $1$ GPa induces large isothermal entropy changes of $|ΔS| \sim 15$-$45$ Jkg$^{-1}$K$^{-1}$ and adiabatic temperature shifts of $|ΔT| \sim 10$ K in the temperature interval $400 \le T \le 700$ K. Structural phase transitions are absent in the analysed thermodynamic range. The causes of such large barocaloric effects are significant $P$-induced variations on the ionic conductivity of Cu$_{2}$Se and the inherently high anharmonicity of the material. Uniaxial stresses of the same magnitude, either compressive or tensile, produce comparatively much smaller caloric effects, namely, $|ΔS| \sim 1$ Jkg$^{-1}$K$^{-1}$ and $|ΔT| \sim 0.1$ K, due to practically null influence on the ionic diffusivity of Cu$_{2}$Se. Our simulation work shows that thermoelectric compounds presenting high ionic disorder, like copper and silver-based chalcogenides, may render large mechanocaloric effects and thus are promising materials for engineering solid-state cooling applications that do not require the application of electric fields.
description: 10 pages, 5 figures, 1 table
Tariff wars and their implications for agricultural exporters
Creators: name: Vanzetti, David
name: Do, Lien Huong
name: Vanzetti, David
name: Do, Lien Huong
Publisher: name: Unknown
Year: 2019
Subjects: subject: Agricultural and Food Policy
subject: International Relations/Trade
subject: Tariffs
subject: trade wars

description: In July 2018 the Trump Administration initiated a tariff war by imposing additional duties of 25 percentage points on selected imports from China. As promised, China responded with bilateral tariffs of its own. As a result, both countries are worse off. Not so obvious is the impact on third countries, including exporters competing with the USA, such as Australia or Brazil, or exporters competing with China to supply the US market, such as Korea and Japan. Analysis using a global computable general equilibrium model suggests that a bilateral tariff war does not make every country worse off. Indeed, if the effects are confined to tariff cuts, as opposed to investment flows, most countries gain. This is because most imports between the USA and China have substitutes, albeit imperfect. This means that most imports can be obtained elsewhere. Conversely, both the USA and China can export to alternative markets. Trade and welfare effects are presented.