cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The Hubble Constant from Observations of the Brightest Red Giant Stars in a Virgo-Cluster Galaxy
Creators: name: Harris, W. E.
name: Durrell, P. R.
name: Pierce, M. J.
name: Secker, J.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The Virgo and Fornax clusters of galaxies play central roles in determining the Hubble constant H_0. A powerful and direct way of establishing distances for elliptical galaxies is to use the luminosities of the brightest red-giant stars (the TRGB luminosity, at M_I = -4.2). Here we report the direct observation of the TRGB stars in a dwarf elliptical galaxy in the Virgo cluster. We find its distance to be 15.7 +- 1.5 Megaparsecs, from which we estimate a Hubble constant of H_0 = 77 +- 8 km/s/Mpc. Under the assumption of a low-density Universe with the simplest cosmology, the age of the Universe is no more than 12-13 billion years.
description: 12 pages, LaTeX, with 2 postscript figures; in press for Nature, July 1998
Reminiscences of Rudolph Staffel 1984
Publisher: name: Columbia University
Year: 2019
Subjects: Potters
Pottery
Pottery craft
Porcelain
Clay

description: Childhood; education at Chicago Art Institute, late 1920s; exposure to ceramics in New Mexico, teaching at Arts and Crafts Club, New Orleans, and Tyler School of Art, Temple University; U.S. Air Force, World War II; professional interests, use of clay and porcelain, reflections on development of American Ceramic Society, National Council on Education in the Ceramic Arts.
Word Alignment Based On Bilingual Bracketing
Creators: name: Zhao, Bing
name: Vogel, Stephan
Publisher: name: Association for Computational Linguistics (ACL)
Year: 2003

description: In this paper, an improved word alignment based on bilingual bracketing is described. The explored approaches include using Model-1 conditional probability, a boosting strategy for lexicon probabilities based on importance sampling, applying Parts of Speech to discriminate English words and incorporating information of English base noun phrase. The results of the shared task on French-English, RomanianEnglish and Chinese-English word alignments are presented and discussed.
Additional file 1 of Optimal selection of molecular descriptors for antimicrobial peptides classification: an evolutionary feature weighting approach
Creators: name: Beltran, Jesus
name: Longendri Aguilera-Mendoza
name: Brizuela, Carlos
Publisher: name: figshare
Year: 2018
Subjects: subject: Space Science
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences

description: Performance comparison of the best compromise solutions given Îť1 for four different machine learning algorithms. The values are related to the average of the balance accuracy. (PDF 341 kb)
title: Σύγχρονα συστήματα μεταφοράς και διανομής ηλεκτρικής ενέργειας
Creators: name: Georgilakis, Pavlos
Publisher: name: Kallipos, Open Academic Editions
Year: 2016
Subjects: ΣΥΣΤΗΜΑΤΑ ΜΕΤΑΦΟΡΑΣ ΗΛΕΚΤΡΙΚΗΣ ΕΝΕΡΓΕΙΑΣ
ΕΥΕΛΙΚΤΑ ΣΥΣΤΗΜΑΤΑ ΜΕΤΑΦΟΡΑΣ
ΜΕΤΑΦΟΡΑ ΜΕ ΣΥΝΕΧΕΣ ΡΕΥΜΑ
ΣΥΣΤΗΜΑΤΑ ΔΙΑΝΟΜΗΣ ΗΛΕΚΤΡΙΚΗΣ ΕΝΕΡΓΕΙΑΣ
ΣΥΣΤΗΜΑΤΑ ΔΙΑΝΟΜΗΣ ΜΕ ΔΙΕΣΠΑΡΜΕΝΗ ΠΑΡΑΓΩΓΗ
ΑΝΑΛΥΣΗ ΣΥΣΤΗΜΑΤΩΝ ΗΛΕΚΤΡΙΚΗΣ ΕΝΕΡΓΕΙΑΣ
Electric Power Transmission Systems
Flexible Ac Transmission Systems (FACTS)
High Voltage Direct Current (HVDC) Transmission
Optimal Operation And Planning Of Transmission Systems
Electric Power Distribution Systems
Optimal Operation And Planning Of Distribution Systems
Analysis Of Electric Power Systems

description: Το βιβλίο αυτό απευθύνεται σε προπτυχιακούς και μεταπτυχιακούς φοιτητές που διδάσκονται τα συστήματα μεταφοράς και διανομής (ΣΜΔ) ηλεκτρικής ενέργειας και σε επαγγελματίες μηχανικούς που ασχολούνται με τη μελέτη, σχεδίαση, ανάλυση, λειτουργία, και προμήθεια των συστημάτων αυτών.

Εκτός από τα παραδοσιακά, παρουσιάζει και τα σύγχρονα ΣΜΔ, όπως τα ευέλικτα συστήματα μεταφοράς και τα συστήματα διανομής με διεσπαρμένη παραγωγή.

Η βασική φιλοσοφία του βιβλίου είναι ότι μαθαίνουμε μέσα από την εξάσκηση. Για το λόγο αυτό, το βιβλίο περιλαμβάνει πολλά λυμένα παραδείγματα, τα οποία βοηθούν στην κατανόηση των μεθόδων ανάλυσης των ΣΜΔ.

Το βιβλίο μπορεί να χρησιμοποιηθεί τόσο από μη εξοικειωμένους όσο και από προχωρημένους επιστήμονες του κλάδου.

Διδάσκοντες, φοιτητές και επαγγελματίες του χώρου των ΣΜΔ μπορούν να βρουν στο βιβλίο αυτό το απαραίτητο υλικό για την κατανόηση των εννοιών που σχετίζονται με:

- Παραδοσιακά και σύγχρονα ΣΜΔ
- Ηλεκτρικά χαρακτηριστικά γραμμών μεταφοράς
- Ηλεκτρικά μοντέλα γραμμών μεταφοράς
- Ευέλικτα συστήματα μεταφοράς
- Μεταφορά με συνεχές ρεύμα
- Φορτία συστημάτων διανομής
- Ανάλυση συστημάτων διανομής
- Συστήματα διανομής με διεσπαρμένη παραγωγή
- Βέλτιστη λειτουργία και ανάπτυξη ΣΜΔ
title: Trophic and size spectra modeling reveal key species interactions and quantify community recovery dynamics within Newfoundland and Labrador fisheries ecosystems.
Creators: name: Krumsick, Kyle
Publisher: name: Memorial University of Newofundland
Year: 2020

description: Recent efforts to shift towards ecosystem approaches to fisheries management require multi-species analyses across dynamic food webs and an understanding of trophic dynamics. My research analyzed the marine food web dynamics of Newfoundland and Labrador using stomach contents data and stable isotope ratios from fishes and invertebrates. A key facet of trophic ecology is the role a species fills in the food web. My first chapter quantified realized isotopic niches, a proxy for trophic niche, of representative dominant species using Bayesian ellipses and assess the potential competitive interactions that could prevent population recovery of groundfish species. Also essential in trophic ecology is the assessment of nutrient flow through an ecosystem. To understand the origin for the spatially varying isotopic niches, isotope mixing models were created in my second chapter to assess the strength of the interactions between all fish species and prey species and assess the key pathways of nutrient flow to the upper food web. Considering bioenergetic transfer through a system requires consideration of productivity resulting from growth and reproduction. This productivity analysis lends itself to the study of size spectra and the question of whether they may be used to assess community recovery. To do so, in my third chapter the empirical size structure I derived from the ecosystem surveys was compared to a theoretical pristine size structure derived through a combination of nitrogen stable isotopes and macroecological principles. Strong regionality was observed in isotopic signatures, with more trophic niche overlap, increased connectance and shorter food chain length in the less diverse, northern sites. Ontogenetic variation was observed in the isotopic niches and in the reconstructed diets. These trophic considerations may contribute to the observed differential recovery rates of fish stocks, illustrating the importance of considering competition and diet composition. The interactions of recovering groundfish species and economically important invertebrate species (i.e. shrimp and snow crab) were also highlighted. Although the Newfoundland and Labrador marine ecosystems were still far from fully recovered, recovery and continued sustainability of fish communities could be facilitated through balanced harvesting (though presently mostly theoretical) to limit the damaging impacts of fishery exploitation.
title: Ανθολογία λατινικού επιγράμματος
title: ΕΙΣΑΓΩΓΗ ΚΕΙΜΕΝΟ ΜΕΤΑΦΡΑΣΗ ΣΧΟΛΙΑ
titleType: AlternativeTitle
Creators: name: Tromaras, Leonidas
Publisher: name: Kallipos, Open Academic Editions
Year: 2016
Subjects: ΕΠΙΓΡΑΜΜΑ
ΛΑΤΙΝΙΚΟ ΕΠΙΓΡΑΜΜΑ
Epigram
Latin Epigram

description: Το προτεινόμενο βιβλίο έχει ως θέμα του το Λατινικό Επίγραμμα από την αρχή της ιστορίας του μέχρι το τέλος της αρχαιότητας, δηλ. από τον 3ο αι. π.Χ. μέχρι και τον 6ο μ.Χ. Βασίζεται στην ανθολόγηση κειμένων των μεγαλύτερων και αντιπροσωπευτικότερων ποιητών του είδους. Από αυτήν την άποψη, ως σύνολο που αποδίδει την ιστορία του λατινικού επιγράμματος, είναι μοναδικό στο είδος του παγκοσμίως. Τα λατινικά κείμενα μεταφράζονται και υπομνηματίζονται.
Το βιβλίο απευθύνεται σε προπτυχιακούς και μεταπτυχιακούς φοιτητές, σε συναδέλφους καθηγητές ΑΕΙ και της Μέσης Εκπαίδευσης, καθώς και στον κάθε εραστή της ποίησης.
A simple chemosensor for ultrasensitive fluorescent “turn-on” detection of Fe3+ and alternant detection of CN-
Creators: name: Zhang, Qin-Peng
name: Wei, Tai-Bao
name: An, Jun-Nian
name: Chen, Yan-Yan
name: Gong, Guan-Fei
name: Zhou, Qi
name: Yang, Hai-Long
name: Yao, Hong
name: Zhang, You-Ming
name: Lin, Qi
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biophysics
subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Information Systems not elsewhere classified
subject: Cancer

description: It is worth noting that Fe3+ is paramagnetic in nature. Thus, in most of the cases, Fe3+ behave as fluorescent quencher which makes it difficult to develop a fluorescent ‘turn-on’ chemosensor. Therefore, it is still a big challenge to devise and synthesise a simple chemosensor that could selectively detect Fe3+ via fluorescent ‘turn-on’ response. In this paper, A simple fluorescence chemosensor T based on N,N-(3,3-dimethyl biphenyl)-bis(2-methoxyphenol) has been synthesised. T could selectively detect Fe3+ via fluorescent ‘turn-on’ response. Meanwhile, the fluorescent spectrum limit of T towards Fe3+ was 0.178 nM, the detection limit was much lowest than previously reported fluorescent chemosensor and has reached to ultrasensitive level. In addition, T could also alternately detect CN−. Intriguingly, IMPLICATION logic gate was successfully constructed. Finally, the test papers and films based on T were prepared, which could be used as a fluorescent display material for the detection of Fe3+ and CN−. In this article, a simple chemosensor (T) for ultrasensitive fluorescent ‘turn-on’ detection of Fe3+ and alternant detection of CN− has been designed and synthesised. The fluorescent spectrum detection limit of T towards Fe3+ was 0.178 nM, the detection limit was much lowest than previously reported fluorescent chemosensor and has reached to ultrasensitive level. Based on the alternant detection property of T for Fe3+ and CN−, the fluorescent ‘ON-OFF-ON’ responding circle, IMPLICATION logic gate and test kits were constructed and prepared successfully, showing potential for practical applications in the detection of metal ions, toxic ions as well as smart material aspects.
Riccia sorocarpa Bisch.
Creators: name: Jarvis, Charlie
Publisher: name: Linnaean Society of London in association with the Natural History Museum
Year: 2007
Subjects: Biodiversity
Taxonomy
Plantae
Bryophyta
Marchantiopsida
Marchantiales
Ricciaceae
Riccia
Riccia sorocarpa

description: Riccia minima Linnaeus, Species Plantarum 2: 1139. 1753, nom. rej.
"Habitat in Europae inundatis." RCN: 8149.
Type not designated.
Original material: Herb. Burser XX: 70 (UPS); [icon] in Micheli, Nov. Pl. Gen.: 107, t. 57, f. 6. 1729; [icon] in Dillenius, Hist. Musc.: 534, t. 78, f. 11. 1741.
Current name: Riccia sorocarpa Bisch. (Ricciaceae).
description: Published as part of Jarvis, Charlie, 2007, Chapter 7: Linnaean Plant Names and their Types (part R), pp. 785-805 in Order out of Chaos. Linnaean Plant Types and their Types, London :Linnaean Society of London in association with the Natural History Museum on page 796, DOI: 10.5281/zenodo.291971
Contact Binaries of the Galactic Disk: Comparison of the Baade's Window and Open Cluster Samples
Creators: name: Rucinski, Slavek M.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The paper integrates the available data for contact binaries of the disk population in a deep galactic field and in old open clusters. The two basic data sets consist of 98 systems in the volume-limited 3 kpc sub-sample of contact binaries detected by the OGLE microlensing project toward Baade's Window (BW3) and of 63 members of 11 old open clusters (CL). Supplementary data on the intrinsically bright, but spatially rare, long-period binaries are provided by 238 systems in the BW sample to the distance of 5 kpc (BW5). The basic BW3 sample and the CL sample are remarkably similar in the period, color, luminosity and variability-amplitude distributions, in spite of very different sample selections. The contact systems are found in the color interval 0.3 < (B-V)0 < 1.2 where the turn-off points (TOP) of the considered clusters are located; however, they are not concentrated at the respective TOP locations but, once the TOP happens to fall in the above color interval, they can appear anywhere within it. The luminosity function for the BW sample appears to be very similar in shape to that for the solar neighborhood main-sequence stars when corrections for the galactic disk structure are applied, implying a flat apparent frequency-of-occurrence distribution. In the interval 2.5 < M_V < 7.5, the frequency relative to MS stars equals about 1/130 for the exponential disk length scale h_R = 2.5 kpc and about 1/100 for h_R = 3.5 kpc. (abridged)
description: submitted to AJ; 27 pages (aastex), 16 figures (.ps), 7 tables (aastex)
Additional file 2 of A graph-based filtering method for top-down mass spectral identification
Creators: name: Runmin Yang
name: Daming Zhu
Publisher: name: figshare
Year: 2018
Subjects: subject: Biochemistry
subject: Space Science
subject: Cell Biology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Developmental Biology

description: The parameter settings of TopPIC used in the experiments. (PDF 13 kb)
Scalar Dark Matter, GUT baryogenesis and Radiative neutrino mass
Creators: name: Huang, Wei-Chih
name: Päs, Heinrich
name: Zeißner, Sinan
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate an interesting correlation among dark matter phenomenology, neutrino mass generation and GUT baryogenesis, based on the scotogenic model. The model contains additional right-handed neutrinos $N$ and a second Higgs doublet $Φ$, both of which are odd under an imposed $Z_2$ symmetry. The neutral component of $Φ$, i.e. the lightest of the $Z_2$-odd particles, is the dark matter candidate. Due to a Yukawa coupling involving $Φ$, $N$ and the Standard Model leptons, the lepton asymmetry is converted into the dark matter asymmetry so that a non-vanishing $B-L$ asymmetry can arise from $(B-L)$-conserving GUT baryogenesis, leading to a nonzero baryon asymmetry after the sphalerons decouple. On the other hand, $Φ$ can also generate neutrino masses radiatively. In other words, the existence of $Φ$ as the dark matter candidate resuscitates GUT baryogenesis and realizes neutrino masses.
description: 16 pages, 6 figures. v2: version accepted by PRD
Constraints on Self-Interacting Dark Matter
Creators: name: de Laix, Andrew A.
name: Scherrer, Robert J.
name: Schaefer, Robert K.
Publisher: name: arXiv
Year: 1995
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We consider the growth of density perturbations in the presence of self--interacting dark matter, SIDM, proposed by Carlson, Machacek and Hall (1992). We determine the range of values for the coupling constant $λ$ and the particle mass $m^\prime$, for which the power spectrum lies in the ``allowed" range based on constraints from the IRAS galaxy survey and damped Lyman--$α$ systems. Our results show that no combination of parameters can meet both limits. We consider constraints on the $\2-2$ scatterings which keep the SIDM particles in pressure equilibrium, and we show that if such interactions maintain pressure equilibrium down to the present, they will be strong enough to disrupt galaxy mergers and may lead to stripping of galaxy halos as galaxies move through the dark matter background of these particles. Hence, we also investigate the evolution of large-scale structure in the SIDM model when the particles drop out of pressure equilibrium at some higher redshift. The resulting free-streaming leads to an additional suppression of small-scale perturbations, but it does not significantly affect our results.
description: 19 pages compressed post-script (3 figures included)
Reminiscences of Ruth Cheney Streeter, 1979
Publisher: name: Columbia University
Year: 2021
Subjects: Women executives
Executives
World War, 1939-1945--Women
Depressions--1929--United States
Aeronautics

description: Family background, schooling, debut, 1913; Bryn Mawr, 1914-1917; World War I, marriage; life in Morristown, N.J. from 1922: community undertakings, State Relief Council, County Welfare Board; husband's career as historian and book collector; children, travel; learning to fly, 1940-1941; Director, Marine Corps Women's Reserve, 1943-1945: recruiting, discipline, administration, morale, training, other women's services; New Jersey Veterans Council 1946-1953; bonus issue; delegate to New Jersey Constitutional Convention 1947; Electoral College, 1948
title: Μικροχειρουργική
title: ΒΑΣΙΚΕΣ ΑΡΧΕΣ, ΕΦΑΡΜΟΓΕΣ & ΤΕΧΝΙΚΕΣ
titleType: AlternativeTitle
Creators: name: Dailiana, Zoe
name: Varitimidis, Sokratis
name: Malizos, Konstantinos
Publisher: name: Kallipos, Open Academic Editions
Year: 2016
Subjects: ΜΙΚΡΟΧΕΙΡΟΥΡΓΙΚΗ
ΕΠΑΝΟΡΘΩΤΙΚΗ ΧΕΙΡΟΥΡΓΙΚΗ
ΤΕΧΝΙΚΕΣ ΜΙΚΡΟΧΕΙΡΟΥΡΓΙΚΗΣ
ΜΙΚΡΟΑΓΓΕΙΑΚΗ ΧΕΙΡΟΥΡΓΙΚΗ
ΜΙΚΡΟΣΚΟΠΙΟ
ΚΡΗΜΝΟΙ
ΣΥΓΓΕΝΕΙΣ ΔΙΑΜΑΡΤΙΕΣ
ΑΠΟΚΑΤΑΣΤΑΣΗ ΒΡΑΧΙΟΝΙΟΥ ΠΛΕΓΜΑΤΟΣ ΚΑΙ ΠΕΡΙΦΕΡΙΚΩΝ ΝΕΥΡΩΝ
ΑΓΓΕΙΟΥΜΕΝΑ ΟΣΤΙΚΑ ΜΟΣΧΕΥΜΑΤΑ
ΤΡΑΥΜΑΤΙΚΟΙ ΑΚΡΩΤΗΡΙΑΣΜΟΙ ΚΑΙ ΑΠΟΚΑΤΑΣΤΑΣΗ
ΕΠΑΝΑΣΥΓΚΟΛΛΗΣΕΙΣ ΑΚΡΩΝ
Microsurgery
Reconstructive Surgery
Microsurgical Techniques
Microvascular Surgery
Microscope
Flaps
Congenital Anomalies
Brachial Plexus And Peripheral Nerves Surgery
Vascularized Bone Grafts
Traumatic Amputations And Reconstruction
Replantations

description: Η μικροχειρουργική, δηλαδή η χειρουργική σε μικροσκοπικές ανατομικές δομές με τη βοήθεια μικροσκοπίου και ειδικών εργαλείων και ραμμάτων, αναπύχθηκε τα τελευταία 50 χρόνια και έχει αποδειχθεί ανεκτίμητη και απαραίτητη τεχνική σε όλες τις χειρουργικές ειδικότητες. Πολλές επεμβάσεις όπως η επανασυγκόλληση ακρωτηριασμένων μελών, η κάλυψη με κρημνούς, η συρραφή περιφερικών νεύρων κ.α. βασίζονται στη μικροχειρουργική. Η μικροχειρουργική εφαρμόζεται στην ορθοπαιδική, νευροχειρουργική, πλαστική χειρουργική, οφθαλμολογία, ΩΡΛ, ουρολογία, γυναικολογία, μεταμοσχεύσεις, κ.α. και κατά συνέπεια πρέπει να διδάσκεται στους φοιτητές ιατρικής και να αποτελεί τμήμα της βασικής εκπαίδευσης των ειδικευομένων των χειρουργικών ειδικοτήτων.
Καθώς δεν είναι τεχνική που μαθαίνεται μέσω μελέτης είναι απαραίτητη η χρήση διαδραστικών μέσων και συνεχούς εξάσκησης καθώς και η τήρηση ορισμένων βασικών αρχών. Για την εξάσκηση χρησιμοποιούνται διάφορα μοντέλα:
α. συνθετικά υλικά (γάντι, γάζα, σωληνίσκοι)
β. πτωματικά παρασκευάσματα (ζωικά τεμάχια ή ανθρώπινοι ιστοί/μέλη που αφαιρέθηκαν κατά τη διάρκεια χειρουργικών επεμβάσεων), που δίνουν τη δυνατότητα εκμάθησης των βασικών αρχών της μικροχειρουργικής (εξοικείωση με μικροσκόπιο και απόκτηση ευχερούς χρήσης μικροεργαλείων) και τελικά
γ. πειραματόζωα
Στο παρόν σύγγραμμα, μετά την παρουσίαση των βασικών αρχών και των εφαρμογών της μικροχειρουργικής ακολουθεί παρουσίαση των μικροχειρουργικών τεχνικών με τη χρήση εικόνων και διαδραστικών μέσων. Οι τεχνικές παρουσιάζονται με αυξανόμενη δυσκολία και αφορούν την
1. εξοικείωση με το χειρουργικό μικροσκόπιο, εργαλεία και ράμματα μικροχειρουργικής
2. εξάσκηση σε μικροχειρουργικούς κόμπους σε γάντι
3. εξάσκηση αναστόμωσης σε σωληνίσκους και ζωικά τεμάχια (μηρός όρνιθας)
4. παρασκευή αγγειονευρώδους δεματίου και εξάσκηση αναστομώσεων σε αρτηρίες και φλέβες και νευρικών συρραφών σε πειραματόζωο (επίμυες),
ώστε να υπάρχει επαρκής προετοιμασία για την εφαρμογή των γνώσεων/δεξιοτήτων σε κλινικά περιστατικά.
Additional file 7: of Role of anatomical sites and correlated risk factors on the survival of orthodontic miniscrew implants: a systematic review and meta-analysis
Creators: name: Mohammed, Hisham
name: Wafaie, Khaled
name: Mumen Rizk
name: Almuzian, Mohammed
name: Sosly, Rami
name: Bearn, David
Publisher: name: figshare
Year: 2018
Subjects: subject: Space Science
subject: Medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Science Policy
subject: Hematology

description: Table S5. Statistical summary. (PDF 996 kb)
Ultrafast light sources and methods for attosecond pump-probe experiments
Creators: name: Fabris, Davide
Publisher: name: Imperial College London
Year: 2015

description: In this thesis I describe the development of novel light sources to be applied in attosecond pump-probe experiments, together with new methods dedicated to their characterisation and optimisation. Femtosecond pulses are a necessary tool to enter the attosecond domain. For this reason their development is a key element to unlock more capabilities in pump-probe attosecond experiments. The dynamics of generation and compression of few-cycle femtosecond pulses has been studied in a hollow core fibre system. The carrier envelope phase stability performance under increasing input power to the fibre system has been examined systematically, showing the effects of ionisation on the carrier envelope phase stability. Two characterisation techniques have been developed to measure ultrafast femtosecond pulses. A version of the d-scan technique has been demonstrated in the single shot regime for the first time, extending the utility of this diagnostic. An all optical technique (ARIES) for the characterisation of the full waveform of a femtosecond pulse has been developed, exploiting the high harmonics generation process and the sensitivity of the cut-off emission to the instantaneous amplitude of the generating electric field. The main results of the thesis are concerned with the generation of isolated attosecond pulses in new spectral regions. Vacuum ultraviolet few-femtosecond and attosecond pulses have been generated by filtering with metallic foils the high harmonics emission driven by sub-4 fs pulses, and were characterised with the attosecond streaking technique. When using indium as spectral filter a pulse duration of 1.7±0.1 fs was measured at a photon energy of 15 eV. When using tin as spectral filter a pulse duration of 585±31 as was measured at a photon energy of 20 eV. The experimental techniques developed in this thesis allow these pulses to be generated simultaneously with a XUV pulse with a measured duration of 270±25 as. This work will open new opportunities for pump-probe experiments, for example studies of ultrafast charge migration in large molecules.
A Non-Zeeman Interpretation for Polarized Maser Radiation and the Magnetic Field at the Atmospheres of Late-Type Giants
Creators: name: Wiebe, D. S.
name: Watson, W. D.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The linear polarization that is observed, together with likely changes in the orientation of the magnetic field along the line of sight and hence of the optical axes of the medium, can lead to the circular polarization that is observed in the radiation of the circumstellar SiO masers. A magnetic field greater than only about 30 mG is required, in contrast to 10-100 G that would be implied by the Zeeman interpretation. To assess quantitatively the likely changes in orientation of the magnetic field, calculations are performed with representative field configurations that are created by statistical sampling using a Kolmogorov-like power spectrum.
description: 7 pages Latex (aaspp4.sty), 3 ps-figures. Accepted for publication in Astrophysical Journal Letters
Gaia Data Release 2. Short-timescale variability processing and analysis
Creators: name: Roelens, M.
name: Eyer, L.
name: Mowlavi, N.
name: Rimoldini, L.
name: Lecoeur-Taïbi, I.
name: Nienartowicz, K.
name: de Fombelle, G. Jevardat
name: Marchal, O.
name: Audard, M.
name: Guy, L.
name: Holl, B.
name: Evans, D. W.
name: Riello, M.
name: De Angeli, F.
name: Blanco-Cuaresma, S.
name: Wevers, T.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The Gaia DR2 sample of short-timescale variable candidates results from the investigation of the first 22 months of Gaia photometry for a subsample of sources at the Gaia faint end. For this exercise, we limited ourselves to the case of suspected rapid periodic variability. Our study combines fast-variability detection through variogram analysis, high-frequency search by means of least-squares periodograms, and empirical selection based on the investigation of specific sources seen through the Gaia eyes (e.g. known variables or visually identified objects with peculiar features in their light curves). The progressive definition and validation of this selection criterion also benefited from supplementary ground-based photometric monitoring of a few preliminary candidates, performed at the Flemish Mercator telescope (Canary Islands, Spain) between August and November 2017. We publish a list of 3,018 short-timescale variable candidates, spread throughout the sky, with a false-positive rate up to 10-20% in the Magellanic Clouds, and a more significant but justifiable contamination from longer-period variables between 19% and 50%, depending on the area of the sky. Although its completeness is limited to about 0.05%, this first sample of Gaia short-timescale variables recovers some very interesting known short-period variables, such as post-common envelope binaries or cataclysmic variables, and brings to light some fascinating, newly discovered variable sources. In the perspective of future Gaia data releases, several improvements of the short-timescale variability processing are considered, by enhancing the existing variogram and period-search algorithms or by classifying the identified candidates. Nonetheless, the encouraging outcome of our Gaia DR2 analysis demonstrates the power of this mission for such fast-variability studies, and opens great perspectives for this domain of astrophysics.
description: 18 pages, 19 figures, 2 tables, submitted to Astronomy & Astrophysics and accepted for publication
An investigation into the role of the ion channel TRPV4 in the activation of airway sensory nerves and the cough reflex
Creators: name: Bonvini, Sara
Publisher: name: Imperial College London
Year: 2015

description: The TRPV4 channel is a member of the Transient Receptor Potential family of ion channels and is known to be expressed on airway smooth muscle, macrophages and epithelial cells within the lung. Whilst it has been reported that TRPV4 is present on sensory nerves, its role in modulating the function of airway sensory nerves and the cough reflex remains unexplored. The aim of this thesis was therefore to determine a role for TRPV4 in sensory nerve activity and the cough reflex. Using an in vitro model of vagal sensory nerve activation and an in vivo guinea pig cough model, it was established that activation of TRPV4 by selective ligands activates airway sensory nerves and cause cough. Calcium imaging of isolated neurons and airway single fibre recordings determined that this was through activation of a different population of nerve fibres than those activated by TRPV1 and TRPA1 ligands, which are both known to activate sensory nerves and cause cough. Calcium flux and fibre firing demonstrated a delay prior to activation by a TRPV4 agonist, suggesting an indirect mechanism of action. Activation of TRPV4 has been linked to ATP release in several cell types, and therefore it was hypothesised that activation of TRPV4 on the nerves leads to ATP release and subsequently activation of airway sensory nerves. The purine receptor P2X3, which is activated by ATP, is expressed on airway sensory nerves, and a selective P2X1/3 agonist caused depolarisation of the vagus nerve and firing of Aδ single fibres in vivo. Further, TRPV4 induced activation of sensory nerves in vitro and cough in vivo was inhibited following the administration of a selective P2X3 antagonist. This data would suggest that the activation of airway sensory nerves by TRPV4 ligands causes ATP release which then activates P2X3 possibly present on the same subset of sensory nerves, to cause cough. The work within my thesis has therefore uncovered TRPV4 as a modulator of airway sensory nerves and associated functions such as cough, which exerts its actions via a novel mechanism of action and as such is a good candidate for possible anti-tussive therapies.
HST and ground-based eclipse observations of V2051 Ophiuchi: Binary parameters
Creators: name: Baptista, Raymundo
name: Catalan, M. S.
name: Horne, Keith
name: Zilli, D.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report on high-speed eclipse photometry of the dwarf nova V2051 Oph while it was in a low brightness state, at B ~ 16.2 mag. In comparison to the average IUE spectra, the ultraviolet continuum and emission lines appear reduced by factors of, respectively, ~4 and ~5. Flickering activity is mostly suppressed and the lightcurve shows the eclipse of a compact white dwarf at disc centre which contributes ~60 per cent of the total light at 3900--4300 A. We use measurements of contact phases in the eclipse lightcurve to derive the binary geometry and to estimate masses and relevant dimensions. We find a mass ratio of q= 0.19+/-0.03 and an inclination of i= 83+/-2 degrees. The masses of the component stars are M_1 = 0.78+/-0.06 M_dot and M_2 = 0.15+/-0.03 M_dot. Our photometric model predicts K_1 = 83+/-12 km/s and K_2= 435+/-11 km/s. The predicted value of K_1 is in accordance with the velocity amplitude obtained from the emission lines after a correction for asymmetric line emission in the disc is made (Watts et al. 1986). The secondary of V2051 Oph is significantly more massive than the secondaries of the other ultra-short period dwarf novae. V2051 Oph is probably a relatively young system, whose secondary star had not enough time to evolve out of thermal equilibrium.
description: 16 pages, 7 postscript figures, coded using MNRAS latex style. To appear in Monthly Notices of the Royal Astronomical Society. Revised version with changes in section 4.3. For related papers and files see ftp://fsc01.fsc.ufsc.br/pub/bap and http://www.fsc.ufsc.br/~astro
title: Ιστορία και θεωρία των λογοτεχνικών γενών και ειδών
title: ΠΑΡΑΔΕΙΓΜΑΤΑ ΚΑΙ ΕΦΑΡΜΟΓΕΣ
titleType: AlternativeTitle
Creators: name: Karakasi, Aikaterini
name: Spyridopoulou, Maria
name: Kotelides, George
Publisher: name: Kallipos, Open Academic Editions
Year: 2016
Subjects: ΛΟΓΟΤΕΧΝΙΑ
ΘΕΩΡΙΑ ΚΑΙ ΙΣΤΟΡΙΑ ΤΗΣ ΛΟΓΟΤΕΧΝΙΑΣ
ΛΟΓΟΤΕΧΝΙΚΑ ΓΕΝΗ
ΛΟΓΟΤΕΧΝΙΚΑ ΕΙΔΗ
ΠΕΖΟΣ ΛΟΓΟΣ
ΛΥΡΙΚΟΣ ΛΟΓΟΣ
ΔΡΑΜΑΤΙΚΟΣ ΛΟΓΟΣ
Literature
Theory And History Of Literature
Poetry
Drama
Prose
Literary Genres
Literary Subgenres

description: Το προτεινόμενο διδακτικό εγχειρίδιο μπορεί να χρησιμοποιηθεί ως κύριο ή / και ως επικουρικό σύγγραμμα από προπτυχιακούς και μεταπτυχιακούς φοιτητές ανθρωπιστικών επιστημών που διδάσκονται ξένη ή ελληνική λογοτεχνία, συγκριτική φιλολογία και θεατρολογία. Έχει ως αντικείμενο την κριτική παρουσίαση των γενών και των ειδών που εμφανίστηκαν, καθιερώθηκαν και κωδικοποιήθηκαν στην ιστορία της ευρωπαϊκής λογοτεχνίας αλλά και της θεωρίας περί αυτών μέσω της κριτικής επισκόπησης σημαντικών ποιητικών που έδρασαν ανά τους αιώνες και διαμόρφωσαν την αισθητική, την πρόσληψη και την παραγωγή της λογοτεχνίας.

Εκκινώντας από την αποδοχή ότι «το γένος είναι η δομή της οποίας παραλλαγές είναι τα έργα» θα προσεγγίσουμε τις κατηγορίες και υποκατηγορίες της λογοτεχνικής παραγωγής με δύο τρόπους: α) από ιστορικής άποψης, ακολουθώντας εκ του σύνεγγυς την εμφάνιση, επιβίωση ή εξαφάνισή τους στις διάφορες εποχές δημιουργίας τους (άξονας διαχρονίας) και β) από θεωρητικής άποψης διερευνώντας και παρουσιάζοντας τα χαρακτηριστικά εκείνα γνωρίσματα που μας επιτρέπουν την κατηγοριοποίηση των έργων σε συγκεκριμένα γένη και είδη (άξονας συγχρονίας). Για παράδειγμα, θα παρουσιάσουμε τόσο τα δομικά στοιχεία που διέπουν το είδος του μυθιστορήματος όσο και τις μεταβολές του ανά τους αιώνες.

Θα συνδέσουμε τη θεωρία με την πράξη μέσω παραδειγμάτων και πρακτικών εφαρμογών και γι’ αυτό τα κεφάλαια θα αποτελούνται από δύο μέρη: α) το πρώτο και μεγαλύτερο θα αναλύει τη σύγχρονη λογοτεχνική παραγωγή παρουσιάζοντας τα κυρίαρχα ή νεόκοπα είδη, ενώ παράλληλα θα εξετάζει τις «δράσεις» ή «αντιδράσεις» της θεωρίας και β) το δεύτερο μέρος θα απαρτίζεται από μικρά αποσπάσματα θεωρητικών κειμένων και σύντομο σχολιασμό τους (με στόχο την εξοικείωση των φοιτητών στην κριτική σκέψη) και από σύντομα αποσπάσματα κειμένων της νεοελληνικής και ευρωπαϊκής λογοτεχνίας άμεσα συνυφασμένων με τα γένη/είδη που έχουν σκιαγραφηθεί στο αντίστοιχο κεφάλαιο.
Nonlinear exact coherent structures in high Reynolds number shear flows
Creators: name: Dempsey, Liam
Publisher: name: Imperial College London
Year: 2015

description: Recently a dynamical systems approach to the process of transition to turbulence has arisen in which so called exact coherent structures play a key role. Such structures are equilibrium states which are exact solutions of the Navier-Stokes equations. Given the nature of the governing equations such states can be diﬃcult to ﬁnd due to the size of the state space and nonlinear eﬀects. Techniques such as homotopy and artiﬁcial forcing have been used to overcome these issues. However, here we will focus on ﬁnding such states at large Reynolds numbers where an asymptotically large parameter allows the identiﬁcation of the leading order eﬀects, from which the structure of the states can be described. The states described in this thesis will be split into two general types. The ﬁrst are of vortex-Tollmien-Schlichting-wave type and these states arise via the viscous instability mechanism. The ﬂows studied here (plane Poiseuille ﬂow and the asymptotic suction boundary layer) both exhibit a linear instability and hence we can ﬁnd nonlinear travelling wave equilibrium states which bifurcate directly from the basic state. Importantly the class of states studied here have a large spanwise wavelength. We will ﬁnd and investigate these states, ﬁnding that they appear to terminate in a singularity caused by the lack of spanwise diﬀusion at leading order. The second type are characterised by the presence of structures both in the freestream and close to the wall, and were ﬁrst found by Deguchi & Hall (J. Fluid Mech, vol. 752, 2014, pp. 602–625). We will consider two variations of these states. The ﬁrst is the eﬀect of wall curvature which leads to the imperfect bifurcation of G¨ortler vortices from the basic state. The second is the spontaneous generation of near wall structures when freestream structures are assumed to appear impulsively at some downstream location.
The angular correlation hierarchy in the quasilinear regime.
Creators: name: Bernardeau, F.
Publisher: name: arXiv
Year: 1995
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: For Gaussian initial conditions the perturbation theory predicts a very specific hierarchy for the projected matter $p$-point correlation functions. In the small angle approximation and assuming a power-law spectrum I derive the exact expressions of the coefficients $s_p$ relating the averaged $p$-order angular correlation function, $\omb_p$ to the second one, $\omb_p=s_p\ \omb_2^{p-1}$. These results are valid for any selection function, but for a top-hat angular filter only. These coefficients are found to be significantly higher than their 3D counterparts, $S_p=\xib_p/\xib_2^{p-1}$. For the coefficient $s_3$ I discussed the accuracy of the small angle approximation by computing, for particular examples, its angular dependence with Monte-Carlo numerical integrations. It is found that the accuracy of the small angle approximation for $θ\approx 1^o$ slightly depends on the selection function. Using the selection function expected for galaxy catalogues the approximation is found to be reasonably good. The measurements of the $s_p$ parameters made in the APM angular survey are found to give systematic lower values than the theoretical predictions. How significant this discrepancy is and what the implications would be for galaxy formation models is discussed in the last section.
description: 9 pages; uuencoded compressed postscript file with 5 included figures. To appear in Astron. and Astrophys.
Additional file 4: of The unintended consequences of combining equity measures with performance-based financing in Burkina Faso
Creators: name: Turcotte-Tremblay, Anne-Marie
name: Allegri, Manuela De
name: Idriss Gali-Gali
name: ValĂŠry Ridde
Publisher: name: figshare
Year: 2018
Subjects: subject: Space Science
subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Explanations for the classification of anticipated vs. unanticipated consequences. (DOCX 161 kb)
Impact Response and Mitigation of Precast Concrete Segmental Columns
Creators: name: Hao, Hong
name: Zhang, Xihong
name: Li, Chao
name: Do, T.V.
Publisher: name: figshare
Year: 2019
Subjects: classificationCode: 400510
subject: Structural engineering

description: Precast
segmental column has been widely used in construction for the past decades as
it improves construction efficiency, leads to better construction quality,
reduces construction cost, and minimize site disruption and environmental
impact. Nevertheless, the performance of precast segmental column under extreme
dynamic loading such as impact and blast loading has been seldom studied. This
paper presents our recent studies on the response of precast segmental concrete
columns with unbonded post-tensioned prestress tendon. Simplified analytical
study was used to analyse the response of segmental column. Comparison was made
with conventional monolithic column to evaluate the impact resistant
performance of segmental column. Concrete shear key with optimized design was
introduced to segmental column to improve its lateral shear resistance
capacity. FRP wrap was used to strengthen the concrete segment and reduce
concrete damage at segmental joints. 
Low-luminosity X-ray Active Nuclei in S0 galaxies NGC 3065 and NGC 4203
Creators: name: Iyomoto, Naoko
name: Makishima, Kazuo
name: Matsushita, Kyoko
name: Fukazawa, Yasushi
name: Tashiro, Makoto
name: Ohashi, Takaya
Publisher: name: arXiv
Year: 1998
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present ASCA X-ray results on two S0 galaxies, NGC 3065 and NGC 4203. In both galaxies, we detected hard X-ray emission from a point-like source at the nucleus. Single power law model having a photon index of 1.8 well described the spectra of these sources, while thin thermal emission which is common in S0 galaxies was not detected. The 2-10 keV luminosities of these nuclear sources, 2.2 times 10^{41} erg s^{-1} and 1.5 times 10^{40} erg s^{-1}, are 1-2 orders of magnitude higher than those expected as an assembly of low-mass X-ray binaries in these galaxies. Our results strongly suggest that NGC 3065 and NGC 4203 host low-luminosity active galactic nuclei (LLAGNs).
description: 7 pages, 5 figures, to be published in the Astrophysical Journal
title: Οικονομική ανάλυση και πολική - Μακροοικονομική
title: ΒΑΣΙΚΕΣ ΑΡΧΕΣ ΚΑΙ ΠΡΟΕΚΤΑΣΕΙΣ
titleType: AlternativeTitle
Creators: name: Lianos, Theodoros
name: Pseiridou, Anastasia
Publisher: name: Kallipos, Open Academic Editions
Year: 2016
Subjects: ΜΑΚΡΟΟΙΚΟΝΟΜΙΚΗ
Macroeconomics

description: Το σύγγραμμα αναλύει τη λειτουργία του οικονομικού συστήματος σύμφωνα με το κεϋνσιανό και με το κλασικό οικονομικό υπόδειγμα. Καλύπτει τις αγορές προϊόντος και χρήματος, τον σχηματισμό του γενι-κού επιπέδου των τιμών, τη δημοσιονομική και νομισματική πολιτική, την ανάλυση του δημοσίου χρέους, τον εξωτερικό τομέα και την αγορά συναλλάγματος, καθώς και προεκτάσεις της θεωρίας των επενδύσεων και της κατανάλωσης. Κάθε κεφάλαιο περιλαμβάνει ασκήσεις με τις απαντήσεις τους για την εμπέδωση της ύλης. Η παρουσίαση βασίζεται σε απλά γεωμετρικά σχήματα και σε απλά μακροοικονομικά υποδείγματα. Το επίπεδο ανάλυσης αντιστοιχεί σε αυτό των δευτεροετών ή τριτοετών φοιτητών των ελληνικών πανεπιστημίων, αλλά με κατάλληλη επιλογή κεφαλαίων μπορεί να χρησιμοποιηθεί και για το εισαγωγικό μάθημα της μακροοικονομικής.
Reservoir condition pore-scale imaging of reaction
Creators: name: Menke, Hannah Paris
Publisher: name: Imperial College London
Year: 2015

description: This thesis presents the first dynamic imaging of fluid/rock reaction using x- ray microtomography (μ-CT) and focuses on three series of experiments: (1) imaging a homogenous carbonate during dissolution using a laboratory scanner; (2) imaging heterogeneous carbonates at multiple flow rates using a synchrotron pink beam; (3) imaging the same rocks using a laboratory scanner at multiple reactive conditions incorporating effluent analysis. First the in situ reservoir condition imaging apparatus was adapted to image Ketton carbonate dynamically using a laboratory μ-CT scanner. 10 images were acquired over 2 1⁄2 hours. Porosity and surface area were measured from the images and permeability and connectivity were calculated using flow models. Ketton dissolved uniformly at these conditions although the effective reaction rate (reff) was 16 times lower than those measured in batch reactor experiments with no transport limitations. Second the experimental apparatus was used with fast synchrotron-based μ- CT to image two more complex carbonates, Estaillades and Portland Basebed at two different flow conditions. ~100 images were taken over 2 hours, which captured the complexity of dissolution. It was found that the type of dissolution is both pore structure and flow rate dependent. A new type of dissolution, channelling, is observed which has a reff up to 100 times lower than batch rates. Third, effluent analysis was incorporated into the experimental apparatus. All three rocks were imaged again at two separate reactive conditions. The reff was between 10 and 100 times lower than the batch rates, with the lowest rates in samples with the most channelized flow, confirming that transport limitations are the dominant mechanism in determining reff at the fluid/solid boundary. Effluent analysis confirmed that using the in situ, rather than the injected pH, to determine reff is valid in the uniform regime, but overestimates reff with channelling by an order of magnitude.
Trajectoires d'utilisation des terres pour des transformations durables des territoires : Identifier les points de levier dans un hotspot mondial de biodiversité
Creators: name: NAVARRO, CHARLOTTE
Publisher: name: Fondation pour la recherche sur la biodiversité
Year: 2025
Subjects: agriculture

description: Identifier des transformations territoriales profitant aux humains et à la nature est crucial. De solides connaissances des mécaniques de changement d’usage des terres peuvent favoriser ces transformations, créant des territoires multifonctionnels.

Pour évaluer l’impact des différents usages des sols sur la biodiversité, les services écosystémiques et l’agriculture, les scientifiques comparent généralement divers types d’utilisation des sols. Cependant, ces comparaisons négligent souvent les conversions réalistes, nécessaires pour les politiques à long terme.

Dans cette étude, des chercheurs ont utilisé diverses méthodes pour analyser les trajectoires d’utilisation des terres à Madagascar, visant des équilibres entre biodiversité et activités humaines, comme l’agriculture. L’île de Madagascar a perdu 44 % de ses forêts entre 1953 et 2014, sans répondre aux besoins des populations rurales. L’urgence de transitions vers des systèmes fonciers durables est donc bien réelle.

L’agriculture de subsistance, notamment la culture itinérante, c’est à dire un système d’agriculture où de petites parcelles sont défrichées, brûlées et utilisées pendant une seule année, puis laissées en jachère pendant plusieurs années, reste la principale cause de déforestation dans le nord-est de l’île. Madagascar est également la plus importante zone de culture de la vanille au niveau mondial, constituant le moyen de subsistance d’environ 70 000 à 80 000 agriculteurs. L’agriculture du pays se traduit donc par une trajectoire d’utilisation des terres qui prend son origine dans les forêts anciennes et s’étend des fragments de forêt à la riziculture itinérante en colline et aux agroforêts de vanille. 

Dans ces paysages, les leviers potentiels pour transformer les systèmes fonciers se situent aux lisières de la déforestation, préservant d’anciennes forêts, et au sein de mosaïques paysagères. Ces dernières offrent une sécurité alimentaire accrue, des revenus plus élevés et une meilleure résistance aux chocs économiques et environnementaux.
Field redefinitions and Kähler potential in string theory at 1-loop
Creators: name: Haack, Michael
name: Kang, Jin U
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Field redefinitions at string 1-loop order are often required by supersymmetry, for instance in order to make the Kähler structure of the scalar kinetic terms manifest. We derive the general structure of the field redefinitions and the Kähler potential at string 1-loop order in a certain class of string theory models (4-dimensional toroidal type IIB orientifolds with ${\cal N}=1$ supersymmetry) and for a certain subsector of fields (untwisted Kähler moduli and the 4-dimensional dilaton). To do so we make use of supersymmetry, perturbative axionic shift symmetries and a particular ansatz for the form of the 1-loop corrections to the metric on the moduli space. Our results also show which terms in the low-energy effective action have to be calculated via concrete string amplitudes in order to fix the values of the coefficients (in the field redefinitions and the Kähler potential) that are left undetermined by our general analysis based on (super)symmetry.
description: 50 pages, 1 figure, v2: small changes in order to match the published version