cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Sonnenfleckenzeichnung Nr. 167.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 04.08.2012, 08:00, erstellt von Sergio Cortesi
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 2012

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 3.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Hyperbolicity and uniformly Lipschitz affine actions on subspaces of $L^1$
Creators: name: Vergara, Ignacio
Publisher: name: arXiv
Year: 2022
Subjects: subject: Group Theory (math.GR)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics

description: We show that every hyperbolic group has a proper uniformly Lipschitz affine action on a subspace of an $L^1$ space. We also prove that every acylindrically hyperbolic group has a uniformly Lipschitz affine action on such a space with unbounded orbits. Our main tools are the $\mathbb{Q}$-bicombings on hyperbolic groups constructed by Mineyev and the characterisation of acylindrical hyperbolicity in terms of actions on quasi-trees by Balasubramanya.
description: Final version, 8 pages. To appear in Bulletin of the London Mathematical Society. There was a conceptual mistake in the previous version. Section 3 has been considerably expanded in order to fix it
Removing Barriers to Reproducible Research in Archaeology
Creators: name: Plomp, Esther
name: Karoune, Emma
Publisher: name: Zenodo
Year: 2022
Subjects: Reproducibility
Archaeology
Open Research

description: This presentation was given on 1st July 2022 to the German Chapter of the CAA (Computer Applications and Quantitative Methods in Archaeology). It is a presentation of a recent article with the same name 'Removing barriers to reproducible archaeology'. In this talk, we describe what reproducibility is, why it is important for archaeology, how we can publish reproducibly and what a reproducible workflow is. We then go on the describe of three computational skill levels of reproducible workflows and use examples from archaeological research.
Sonnenfleckenzeichnung Nr. 37.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 17.02.2012, 10:30, erstellt von Michele Bianda
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 2012

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 3.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Sonnenfleckenzeichnung Nr. 106.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 26.05.2012, 08:15, erstellt von Marco Cagnotti
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 2012

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 3.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Sonnenfleckenzeichnung Nr. 146.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 12.07.2012, 08:00, erstellt von Marco Cagnotti
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 2012

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 3.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Sonnenfleckenzeichnung Nr. 28.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 07.02.2012, 10:00, erstellt von Sergio Cortesi
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 2012

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 2.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Adaptive multi-paddock grazing and wellbeing: uptake, management practices and mindset among Canadian beef producers
Creators: name: Sherren, Kate
name: Hodbod, Jenny
name: MathisonSlee, Morgan
name: Chappell, Ellen
name: King, Meagan
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Neuroscience
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Ecology
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Mental Health

description: Adaptive multi-paddock (AMP) grazing practices have been debated based on production, environmental and workload impacts, but farmer wellbeing is only beginning to be explored. A panel-based online survey of 200 Canadian beef producers was undertaken in early 2020 with a descriptive aim to explore the uptake, management, mindsets, and wellbeing implications associated with AMP grazing. AMP practices were more common than expected (29%) as well as distinct in grazing regime, featuring fast rotation, and long rests. AMP ranchers reported high physical wellbeing, as well as systems thinking, nontraditional values, a priority for enjoying life and tendency to use a wide range of modes to learn about grazing. Other dimensions of wellbeing, environmental motivations, and gender dimensions suggested by smaller-n studies were not associated with AMP grazing in this work. These insights are important as the federal government begins to promote AMP grazing and its variants as strategies to combat climate change. More nuanced understanding of adaptive grazing and its trajectory would be possible via consistent, longitudinal surveys with improved operationalization of wellbeing concepts, more detailed exploration of educational background, inclusion of religious beliefs, and elucidation of management characteristics beyond grazing regime variables.
Sonnenfleckenzeichnung Nr. 90.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 07.05.2012, 07:15, erstellt von Marco Cagnotti
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 2012

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 3.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
title: Η επίδραση της καινοτόμου διαχείρισης στην απόδοση της λιμνοθάλασσας Μπούκα (ΙΧΘΥ.Κ.Α. Α.Ε.)
titleType: AlternativeTitle
Creators: name: Περήφανος, Μάριος
Publisher: name: University of Thessaly
Year: 2009
Subjects: subject: ΥΓΡΟΤΟΠΟΙ -- ΔΙΑΧΕΙΡΙΣΗ
subject: ΛΙΜΝΟΘΑΛΑΣΣΑ ΜΠΟΥΚΑ

description: Η παρούσα μελέτη εστιάζεται στην παρουσίαση καινοτόμων διαχειριστικών μέτρων που εφαρμόστηκαν την περίοδο 2001 - 2003 στη λιμνοθάλασσα Μπούκα του συμπλέγματος των λιμνοθαλασσών Μεσολογγίου Αιτωλικού. Τα στοιχεία της επόμενης περιόδου 2004 - 2006 χρησιμοποιούνται ώστε να αξιολογηθεί η επίδραση στην παραγωγή από την εγκατάλειψη της εφαρμογής των δραστηριοτήτων αυτών. Δίνεται ιδιαίτερη έμφαση στην αξιολόγηση ως προς την παραγωγή και το οικονομικό αποτέλεσμα της χρήσης συγκεκριμένων αλιευτικών εργαλείων σε ιχθυοπληθυσμούς της λιμνοθάλασσας που προέρχονται είτε από φυσικά αποθέματα, είτε από εμπλουτισμούς όπως επίσης και στα αποτελέσματα των παράλληλων με την αλιεία δραστηριοτήτων εναλλακτικού τουρισμού. Βασικό χαρακτηριστικό της καινοτομίας που εφαρμόστηκε στην συγκεκριμένη λιμνοθάλασσα την περίοδο 2001 - 2003, ήταν το «δόγμα» της κατά το δυνατό μεγαλύτερης στρεμματικής απόδοσης. Ο στόχος δηλαδή της αύξησης των αλιευόμενων ποσοτήτων ψαριών, αντικαταστάθηκε με αυτόν της ανά στρέμμα αύξησης της οικονομικής απόδοσης, χωρίς αυτό να ταυτίζεται με ένταση της αλιείας. Η πρακτική αυτή που εφαρμόστηκε ως κεντρικός στόχος και παρά τις επιμέρους αστοχίες που περιγράφονται στις συζητήσεις των αποτελεσμάτων της παρούσης αποτελεί ένα παράδειγμα πρακτικής εφαρμογής της γενικής έννοιας της αειφορίας.
Sonnenfleckenzeichnung Nr. 91.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 09.05.2012, 08:45, erstellt von Sergio Cortesi
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 2012

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 3.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Sonnenfleckenzeichnung Nr. 38.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 18.02.2012, 10:30, erstellt von Michele Bianda
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 2012

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 4.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Imperialism and national pride in the Italo-Turkish war (1911-12)
Creators: name: Orazi, Stefano
Publisher: name: Fisciano: ICSR Mediterranean Knowledge
Year: 2017
Subjects: War of Libya
Italian nationalism
Italian national pride

description: Cyprus Dispute is considered to be one of the oldest unresolved disputes. However, in recent year, it is believed that there is a hope that it can be resolved. This paper is a conflict assessment of the dispute, and it gives a brief historical background, and discusses the position of the actors involved; and whether their positions can drive or mitigate the conflict. It touches upon the dividers and connectors of the conflict, which if dealt with carefully, can lead to an optimal solution. The paper gives an overall picture of the conflict, and discusses the possibilities in future.
Is there evidence for exponential quantum advantage in quantum chemistry?
Creators: name: Lee, Seunghoon
name: Lee, Joonho
name: Zhai, Huanchen
name: Tong, Yu
name: Dalzell, Alexander M.
name: Kumar, Ashutosh
name: Helms, Phillip
name: Gray, Johnnie
name: Cui, Zhi-Hao
name: Liu, Wenyuan
name: Kastoryano, Michael
name: Babbush, Ryan
name: Preskill, John
name: Reichman, David R.
name: Campbell, Earl T.
name: Valeev, Edward F.
name: Lin, Lin
name: Chan, Garnet Kin-Lic
Publisher: name: arXiv
Year: 2022
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The idea to use quantum mechanical devices to simulate other quantum systems is commonly ascribed to Feynman. Since the original suggestion, concrete proposals have appeared for simulating molecular and materials chemistry through quantum computation, as a potential ``killer application''. Indications of potential exponential quantum advantage in artificial tasks have increased interest in this application, thus, it is critical to understand the basis for potential exponential quantum advantage in quantum chemistry. Here we gather the evidence for this case in the most common task in quantum chemistry, namely, ground-state energy estimation. We conclude that evidence for such an exponential advantage across chemical space has yet to be found. While quantum computers may still prove useful for quantum chemistry, it may be prudent to assume exponential speedups are not generically available for this problem.
title: Άτλαντας ιστολογίας του λαβρακιού (Dicentrarchus labrax)
titleType: AlternativeTitle
Creators: name: Παπαδόπουλος, Παναγιώτης Ε.
Publisher: name: University of Thessaly
Year: 2008
Subjects: subject: ΨΑΡΙΑ -- ΕΡΕΥΝΑ
subject: ΙΣΤΟΛΟΓΙΑ -- ΑΤΛΑΝΤΕΣ

description: Η παρούσα διπλωματική εργασία εστιάζεται στη μελέτη και περιγραφή της ιστολογικής δομής στο λαβράκι (Dicentrarchus labrax). Για το σκοπό αυτό εξετάστηκαν με το οπτικό μικροσκόπιο και φωτογραφήθηκαν ιστολογικές τομές και κυτταρολογικά επιχρίσματα-εντυπώματα, τα οποία προήλθαν από την νεκροτομή 5 ψαριών, βάρους 25 γραμμαρίων το καθένα και 5 ψαριών, βάρους 300-350 γραμμαρίων το καθένα. Η μελέτη της ιστολογικής δομής του λαβρακιού (Dicentrarchus labrax) έγινε σε σύγκριση με τη γνωστή ιστολογική δομή άλλων ειδών τελεόστεων ιχθύων.
Sonnenfleckenzeichnung Nr. 124.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 18.06.2012, 08:30, erstellt von Marco Cagnotti
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 2012

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 4.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
title: Σύγχρονη εκτροφή του ευρωπαϊκού χελιού
titleType: AlternativeTitle
Creators: name: Καρίπογλου, Κωνσταντίνος Λ.
Publisher: name: University of Thessaly
Year: 2008
Subjects: subject: ΧΕΛΙΑ -- ΕΚΤΡΟΦΗ
subject: ΙΧΘΥΟΚΑΛΛΙΕΡΓΕΙΑ

description: Σε αντίθεση με τις παραδοσιακές μεθόδους εκτροφής χελιών σε ανοιχτά συστήματα, τα κλειστά κυκλώματα με επανακυκλοφορία του νερού, χρησιμοποιούνται όλο και περισσότερο στις σύγχρονες εκτροφές χελιών. Έχουν αναπτυχθεί αρκετοί τύποι κλειστών κυκλωμάτων, προκειμένου να εκτραφούν αποτελεσματικότερα τα χέλια. Στην Ελλάδα, κατά την τελευταία δεκαπενταετία, έχουν κατασκευαστεί δέκα κλειστά κυκλώματα εκτροφής χελιών. Σκοπός αυτής της εργασίας είναι να γίνει καταγραφή δεδομένων εκτροφής προκειμένου να αξιολογηθεί η επίδοση της παραγωγικής διαδικασίας σε ανοιχτό και σε κλειστό κύκλωμα εκτροφής του Ευρωπαϊκού χελιού, σε μονάδα της Άρτας. Από Γαλλική εμπορική εταιρεία παρελήφθησαν δύο διαφορετικές παρτίδες γυαλόχελων με ίδιο αρχικό μέσο σωματικό βάρος 0,33 g. Και οι δύο ομάδες/παρτίδες τοποθετήθηκαν για εκτροφή σε δεξαμενές ανοικτού συστήματος προανάπτυξης- ανάπτυξης (365 ημέρες εκτροφής), με αρχικές ιχθυοπυκνότητες 3,1 kg/m3 και 3,3 kg/m3 αντίστοιχα. Στην περίοδο αυτή, το τελικό μέσο σωματικό βάρος διαμορφώθηκε στα 13,2 g και 13,8 g, ενώ η επιβίωση ήταν 69,9% και 79,8% αντίστοιχα. Την 365η ημέρα έγινε διαλογή και στις δύο παρτίδες και προέκυψαν τρεις κατηγορίες μεγέθους: Α, ταχυαυξή (μέσο σωματικό βάρος >30 g), Β, μεσοαυξή (μέσο σωματικό βάρος 10 - 30 g) και Γ, βραδυαυξή (μέσο σωματικό βάρος <10 g). Σε μια δεύτερη περίοδο τα χέλια της πρώτης παρτίδας (ομάδα 1, υποομάδες OiAi, ΟιΒι και ΟιΠ) τοποθετήθηκαν για 92 ημέρες στο τμήμα προπάχυνσης σε ανοιχτό σύστημα εκτροφής, ενώ τα χέλια της δεύτερης παρτίδας (ομάδα 2, υποομάδες 02Α2, 02Β2 και 02Γ2) τοποθετήθηκαν σε δεξαμενές κλειστού κυκλώματος εκτροφής. Σε αυτή την περίοδο, η εκτροφή στο ανοιχτό σύστημα (ομάδα 1) εμφάνισε εξαιρετικά χαμηλή θνησιμότητα (0,3%), ενώ ακόμη μικρότερη ήταν εκείνη στο κλειστό κύκλωμα (ομάδα 2) εκτροφής (0,05%). Ο συντελεστής μετατρεψιμότητας της τροφής (FCR), παρουσίασε μεγαλύτερες τιμές στο κλειστό σύστημα εκτροφής έναντι του ανοιχτού, μόνο στις υποομάδες Β, ενώ στις άλλες κατηγορίες μεγέθους δεν υπήρξαν στατιστικά σημαντικές διαφορές. Η αναλογία διαφορετικών μεγεθών χελιού δεν φαίνεται να σχετίζεται με το σύστημα εκτροφής. Τα Βραδυαυξή χέλια δεν παρουσίασαν σημαντική αύξηση της βιομάζας ούτε στο κλειστό ούτε στο ανοιχτό σύστημα, ενώ τα Ταχυαυξή παρουσίασαν παρόμοια επίπεδα αύξησης της βιομάζας και στα δυο κυκλώματα.
Sonnenfleckenzeichnung Nr. 231.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 24.10.2012, 07:30, erstellt von Marco Cagnotti
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 2012

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 3.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Adaptive LASSO estimation for functional hidden dynamic geostatistical model
Creators: name: Maranzano, Paolo
name: Otto, Philipp
name: Fassò, Alessandro
Publisher: name: arXiv
Year: 2022
Subjects: subject: Methodology (stat.ME)
subject: Computation (stat.CO)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: We propose a novel model selection algorithm based on a penalized maximum likelihood estimator (PMLE) for functional hidden dynamic geostatistical models (f-HDGM). These models employ a classic mixed-effect regression structure with embedded spatiotemporal dynamics to model georeferenced data observed in a functional domain. Thus, the parameters of interest are functions across this domain. The algorithm simultaneously selects the relevant spline basis functions and regressors that are used to model the fixed-effects relationship between the response variable and the covariates. In this way, it automatically shrinks to zero irrelevant parts of the functional coefficients or the entire effect of irrelevant regressors. The algorithm is based on iterative optimisation and uses an adaptive least absolute shrinkage and selector operator (LASSO) penalty function, wherein the weights are obtained by the unpenalised f-HDGM maximum-likelihood estimators. The computational burden of maximisation is drastically reduced by a local quadratic approximation of the likelihood. Through a Monte Carlo simulation study, we analysed the performance of the algorithm under different scenarios, including strong correlations among the regressors. We showed that the penalised estimator outperformed the unpenalised estimator in all the cases we considered. We applied the algorithm to a real case study in which the recording of the hourly nitrogen dioxide concentrations in the Lombardy region in Italy was modelled as a functional process with several weather and land cover covariates.
Examining the Influence of Minority Stress-Related Experiences on the Mental Wellbeing of Gender and Sexual Minority Youth: A Longitudinal Analysis
Creators: name: Black, Louise
name: Humphrey, Neil
name: Marquez, Jose
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Psychology
subject: FOS: Psychology
subject: Social and Behavioral Sciences

description: This registration contains our initial draft stage-one submission (not IPA). We registered this, since data collection was already just starting, to allow us to have a preregistration should our RR submission be rejected.
Rotation periods and ages of solar analogs and solar twins revealed by the Kepler Mission
Creators: name: Nascimento, J. -D. do
name: Garcia, R. A.
name: Mathur, S.
name: Anthony, F.
name: Barnes, S. A.
name: Meibom, S.
name: da Costa, J. S.
name: Castro, M.
name: Salabert, D.
name: Ceillier, T.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: A new sample of solar analogs and twin candidates have been constructed and studied, with particular attention to their light curves from NASA's Kepler mission. This letter aims to assess the evolutionary status, derive their rotation and ages and identify those solar analogs or solar twin candidates. We separate out the subgiants that compose a large fraction of the asteroseismic sample, and which show an increase in the average rotation period as the stars ascend the subgiant branch. The rotation periods of the dwarfs, ranging from 6 to 30 days, and averaged 19d, allow us to assess their individual evolutionary states on the main sequence, and to derive their ages using gyrochronology. These ages are found to be in agreement with a correlation coefficient of r = 0.79 with the independent asteroseismic ages, where available. As a result of this investigation, we are able to identify 34 stars as solar analogs and 22 of them as solar twin candidates.
description: Accepted to publication on the Astrophysical Journal Letters (ApJL). 5 pages, 4 figures and 1 Table. Manuscript LET31659R1. Press release: http://www.cfa.harvard.edu/news/
Tighter uncertainty relations based on $(α,β,γ)$ modified weighted Wigner-Yanase-Dyson skew information of quantum channels
Creators: name: Xu, Cong
name: Wu, Zhaoqi
name: Fei, Shao-Ming
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We use a novel formation to illustrate the ($α,β,γ$) modified weighted Wigner-Yanase-Dyson (($α,β,γ$) MWWYD) skew information of quantum channels. By using operator norm inequalities, we explore the sum uncertainty relations for arbitrary $N$ quantum channels and for unitary channels. These uncertainty inequalities are shown to be tighter than the existing ones by a detailed example. Our results are also applicable to the modified weighted Wigner-Yanase-Dyson (MWWYD) skew information and the ($α,γ$) modified weighted Wigner-Yanase-Dyson (($α,γ$) MWWYD) skew information of quantum channels as special cases.
description: 12 pages, 2 figures
Comprendre les mathématiques pour comprendre Platon - théétète (147d-148b)
Creators: name: Ofman, Salomon
Publisher: name: arXiv
Year: 2014
Subjects: subject: History and Overview (math.HO)
subject: FOS: Mathematics

description: In this paper, we study the so-called 'Mathematical part' of Plato's Theaetetus. Its subject concerns the incommensurability of certain magnitudes, in modern terms the question of the rationality or irrationality of the square roots of integers. As the most ancient text on the subject, and on Greek mathematics and mathematicians as well, its historical importance is enormous. The difficulty to understand it lies in the close intertwining of different fields we found in it: philosophy, history and mathematics. But conversely, correctly understood, it gives some evidences both about the question of the origins of the irrationals in Greek mathematics and some points concerning Plato's thought. Taking into account the historical context and the philosophical background generally forgotten in mathematical analyses, we get a new interpretation of this text, which far from being a tribute to some mathematicians, is a radical criticism of their ways of thinking. And the mathematical lesson, far from being a tribute to some future mathematical achievements, is ending on an aporia, in accordance with the whole dialogue.
description: in French
Problems and Values
Creators: name: Holmgren, Allan
Publisher: name: Coaching Psykologi
Year: 1970

description: This article highlights coaching from a narrative and poststructuralist perspective. The article argues that problems are the starting point for any concept and every story – that each term starts with a problem. Issues and events must be named and inserted into a story to make meaning before they can be handled. The article argues that in coaching and leadership conversation about hopes, dreams and visions out of the blue sky without a foundation in the living experiences of life and in the problems and their effects one wishes to fight or to handle is meaningless and “hot air”. Problems are something that the protagonist in a narrative meets on his way and bumps with. Problems arise when something unexpected or unforeseen happens. When a problem arises, a breach will occur. This is fundamental in narrative theory. But whenever there is a problem there is also a value, something preferred. In narrative coaching, the protagonist comes closer to his values and skills through stories of preferred experiences. The person’s joy and empowerment are strengthened by sealing the contact with preferred experiences, values and skills. This minimizes the power of the problem over the person. It is the coach’s task in cooperation with the coached to let the preferred experiences and values guide the coaching. It does not make sense to talk about “solutions” in narrative coaching before “thicker” stories about the preferred life are told. The concept and the metaphor of solution itself is problematic as it relates to mathematics and correct answers. Planning and “solutions” require a very high degree of conceptualization and sophisticated narrative. There are no solutions - only experiments when we are dealing with social relations. It makes sense to talk about solutions in the production, in the technical world, not in the never finished social world, where every action initiates a new beginning. The article contains some anonymous examples and vignettes that illustrate some of the theoretical and methodological points.
description: Coaching Psykologi, Årg. 6 Nr. 1 (2017)
Sonnenfleckenzeichnung Nr. 25.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 04.02.2012, 09:00, erstellt von Marco Cagnotti
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 2012

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 3.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Going Incognito in the Metaverse: Achieving Theoretically Optimal Privacy-Usability Tradeoffs in VR
Creators: name: Nair, Vivek
name: Garrido, Gonzalo Munilla
name: Song, Dawn
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: Virtual reality (VR) telepresence applications and the so-called "metaverse" promise to be the next major medium of human-computer interaction. However, with recent studies demonstrating the ease at which VR users can be profiled and deanonymized, metaverse platforms carry many of the privacy risks of the conventional internet (and more) while at present offering few of the defensive utilities that users are accustomed to having access to. To remedy this, we present the first known method of implementing an "incognito mode" for VR. Our technique leverages local differential privacy to quantifiably obscure sensitive user data attributes, with a focus on intelligently adding noise when and where it is needed most to maximize privacy while minimizing usability impact. Our system is capable of flexibly adapting to the unique needs of each VR application to further optimize this trade-off. We implement our solution as a universal Unity (C#) plugin that we then evaluate using several popular VR applications. Upon faithfully replicating the most well-known VR privacy attack studies, we show a significant degradation of attacker capabilities when using our solution.
description: Learn more at https://rdi.berkeley.edu/metaverse/metaguard/
Investigation of a Quantitative Bioanalytical HPLC Method for the Assessment of Famotidine in Pre-clinical Samples: Application for Pharmacokinetic Studies
Creators: name: Bharati, Swati
name: Gaikwad, Vinod
name: Chellampillai, Bothiraja
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biophysics
subject: Biochemistry
subject: Space Science
subject: Microbiology
subject: FOS: Biological sciences
subject: Biotechnology
classificationCode: 39999
subject: Chemical Sciences not elsewhere classified
classificationCode: 19999
subject: Mathematical Sciences not elsewhere classified
classificationCode: 60506
subject: Virology

description: Famotidine (FAM), a histamine H2 receptor antagonist, is effective against peptic ulcers and Zollinger Ellison syndrome. In the current investigation, a HPLC approach was developed to detect the Famotidine (FAM) in pre-clinical samples (rat plasma). To get rid of any chromatographic solvent effects, methanolic extraction method was used to prepare biological samples. A C18 column was used for chromatographic separation, with a pH-adjusted to 8 as mobile phase of water, methanol, and acetonitrile (70: 20: 10, v/v/v) at a flow rate of 1 mL/min and UV detection at 264 nm. The retention times of FAM was found to be 5.7 min. The technique was linear in the range of 50 to 1400 ng/mL in plasma concentration with R2 of 0.9985. The newly proposed method’s respective limits for quantification and detection were found to be 151.45 ± 6.47 ng/mL and 49.97 ± 2.14 ng/mL. The average recovery rates were discovered to range from 98.06 to 103.56%. After numerous freeze-thaw cycles of the treated plasma samples, analyte was stable and showed no sign of significant deterioration. After a single oral dose of 10 mg/kg of FAM, the approach was effectively used to assess the pharmacokinetic characteristics in Wistar albino rats. Consequently, the straightforward technique would enable quick with affordable detection of the FAM from biological samples.
Non-generic Couplings in Supersymmetric Standard Models
Creators: name: Buchbinder, Evgeny I.
name: Constantin, Andrei
name: Lukas, Andre
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study two phases of a heterotic standard model, obtained from a Calabi-Yau compactification of the E8xE8 heterotic string, in the context of the associated four-dimensional effective theories. In the first phase we have a standard model gauge group, an MSSM spectrum, four additional U(1) symmetries and singlet fields. In the second phase, obtained from the first by continuing along the singlet directions, three of the additional U(1) symmetries are spontaneously broken and the remaining one is a B-L symmetry. In this second phase, dimension five operators inducing proton decay are consistent with all symmetries and as such, they are expected to be present. We show that, contrary to this expectation, these operators are forbidden due to the additional U(1) symmetries present in the first phase of the model. We emphasize that such 'unexpected' absences of operators, due to symmetry enhancement at specific loci in the moduli space, can be phenomenologically relevant and, in the present case, protect the model from fast proton decay.
description: 5 pages
Eco-friendly Based UV Spectrophotometric Method and Analytical Quality by Design Aided Stability Indicating RP-HPLC Technique for the Estimation of Molnupiravir
Creators: name: Perumal, Durgadevi
name: Krishnan, Manikandan
name: Lakshmi, K.S
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Pharmacology
subject: Biotechnology
classificationCode: 39999
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences

description: Molnupiravir a novel oral broad-spectrum antiviral drug initially developed for the treatment of COVID-19, was quantified using UV spectrophotometric and high-performance liquid chromatographic methods. The linear regression analysis used to build the equations for the multivariate calibration method used the correlation between absorbance and concentration at a set of five different wavelengths. The suggested method can separate Molnupiravir and its breakdown products using a C18 column containing ethanol and phosphate buffer (42.5:57.5% v/v), a flow rate fixed at 0.9 mL/min, and detection done at 235 nm. The suggested techniques were examined and approved in accordance with ICH Q2 (R1) standards. For the UV and HPLC methods, the linearity ranges for molnupiravir were 4-9 and 10-150 g/ml, accuracy, repeatability, and selectivity, with R2 values were 0.9999 and 0.9999 with recoveries between 98 and 102% and 2% RSD. The unique strategy was additionally assessed utilising three ways, including additional assessment techniques, such as GAPI, AES, and AGREE, and it was discovered to be environmentally friendly. Based on our findings, developing new pharmaceutical drugs may benefit from using UV and HPLC procedures with Green Analytical Performances using the Quality by Design methodology to assess drug stability.
Sonnenfleckenzeichnung Nr. 187.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 27.08.2012, 07:00, erstellt von Marco Cagnotti
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 2012

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 3.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
The Early Evolution of Magnetar Rotation I: Slowly Rotating "Normal" Magnetars
Creators: name: Prasanna, Tejas
name: Coleman, Matthew S. B.
name: Raives, Matthias J.
name: Thompson, Todd A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: In the seconds following their formation in core-collapse supernovae, "proto"-magnetars drive neutrino-heated magneto-centrifugal winds. Using a suite of two-dimensional axisymmetric MHD simulations, we show that relatively slowly rotating magnetars with initial spin periods of $P_{\star0}=50-500$ ms spin down rapidly during the neutrino Kelvin-Helmholtz cooling epoch. These initial spin periods are representative of those inferred for normal Galactic pulsars, and much slower than those invoked for gamma-ray bursts and super-luminous supernovae. Since the flow is non-relativistic at early times, and because the Alfvén radius is much larger than the proto-magnetar radius, spindown is millions of times more efficient than the typically-used dipole formula. Quasi-periodic plasmoid ejections from the closed zone enhance spindown. For polar magnetic field strengths $B_0\gtrsim5\times10^{14}$ G, the spindown timescale can be shorter than than the Kelvin-Helmholtz timescale. For $B_0\gtrsim10^{15}$ G, it is of order seconds in early phases. We compute the spin evolution for cooling proto-magnetars as a function of $B_0$, $P_{\star0}$, and mass ($M$). Proto-magnetars born with $B_0$ greater than $\simeq1.3\times10^{15}\,{\rm\,G}\,(P_{\star0}/{400\,\rm\,ms})^{-1.4}(M/1.4\,{\rm M}_\odot)^{2.2}$ spin down to periods $> 1$ s in just the first few seconds of evolution, well before the end of the cooling epoch and the onset of classic dipole spindown. Spindown is more efficient for lower $M$ and for larger $P_{\star0}$. We discuss the implications for observed magnetars, including the discrepancy between their characteristic ages and supernova remnant ages. Finally, we speculate on the origin of 1E 161348-5055 in the remnant RCW 103, and the potential for other ultra-slowly rotating magnetars.
description: 16 pages, 10 figures
Development of techniques for the minimization of fuel consumption in road vehicles via optimal scheduling of velocity and gear shifting with known road data
Creators: name: Donatantonio, Fabrizio
Publisher: name: Universita degli studi di Salerno
Year: 2018
Subjects: subject: ING-IND/08 MACCHINE A FLUIDO

description: 2016 - 2017
description: This thesis, deals with the problem of reducing fuel consumption of conventional road vehicles, with major emphasis on medium and heavy duty commercial trucks equipped with conventional powertrains. The main idea is the exploitation of technologies already available to guarantee large di usion of the proposed techniques and high impact on a short time horizon. The knowledge of the characteristics of the road to drive stretches the paradigm of energy saving from the power generation within the vehicle alone, towards the exploitation of this additional information for fuel consumption minimization. The goal is to exploit this information, in particular road grade or elevation for modulating vehicle speed and optimizing gear shifts. The key is to deliver mechanical power available in a fashion that maximises the nal objective of transportation: elapsed distance. Nowadays, one of the approaches used to pursue this objective is to perform an instantaneous optimization, based on either some optimality or heuristic principle. On the other hand, the vast majority of the approaches presented in literature, formulate and solve an optimal control problem. Its solution can be approached using optimal control methods or dynamic programming, although at the price of dealing with a potentially prohibitive computational load if suitable model assumptions and simpli cations are not made. ... [edited by Author]
Sonnenfleckenzeichnung Nr. 175.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 12.08.2012, 10:00, erstellt von Andrea Manna
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 2012

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 4.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Electro-kinetic Investigations and Voltammetric Detection of Anti-ulcer Drug Cinitapride at Low-cost Pencil Graphite Electrode
Creators: name: Yadav, Rajesh
name: Jhankal, Deependra
name: Agarwal, Rinky
name: Sharma, D.K.
name: Jhankal, K.K.
Publisher: name: Taylor & Francis
Year: 2023
Subjects: Biophysics
Biochemistry
Medicine
Biotechnology
Chemical Sciences not elsewhere classified
Cancer

description: Herein, we proposed a cost-effective, eco-friendly, fast and sensitive square wave cathodic stripping voltammetry (SWCSV) and differential pulse cathodic stripping voltammetry (DPCSV) methods for the quantification of anti-ulcer drug cinitapride in pharmaceuticals. Cinitapride electrochemically reduced at pencil graphite electrode and gave an irreversible well-defined cathodic peak in cyclic, square wave, and differential pulse voltammograms. The effect of pH of buffer, scan rates, and drug concentration on peak current and peak potential were studied. The reduction of cinitapride at pencil graphite electrode was diffusion controlled and occurred via participation of two electrons and two protons (2e−/2H+). The various electro-kinetic parameters such as diffusion coefficient(Do), surface coverage (To)and electron transfer coefficient (α) were calculated, additionally, the mechanism of reduction of cinitapride at pencil graphite electrode was also proposed. The peak currents vary linearly in the concentration range 2.48 μmolL−1 to 17.39 μmolL−1 for all the voltammetric techniques. The obtained value of LOD for SWCSV and DPCSV techniques were2.48 μmolL−1 and 3.19 μmolL−1, respectively, which proved higher sensitivity of the proposed methods.
Mortality Prediction Model Before Surgery for Acute Mesen-teric Infarction: A Population-based Study
Creators: name: Lin, Shang Wei
name: Chung-Yen Chen
name: Yu-Chieh Su
name: Kun-Ta Wu
name: Po-Chin Yu
name: Yung-Chieh Yen
name: Jian-Han Chen
Publisher: name: Zenodo
Year: 2022
Subjects: acute mesenteric infarction, surgery, bowel resection, preoperative risk factors, scoring system, mortality

description: Surgery for acute mesenteric infarction (AMI) is associated with high mortality. This study aimed to generate mortality prediction model to predict the 30-day-mortality of surgery for AMI. We included patients ≥18 years received bowel resection in treating AMI and randomly divided into the derivation and validation groups. After multivariable analysis, the ‘Surgery for acute mesenteric infarction mortality score’ (SAMIMS) system was generated and was including age>62-year-old (3 points), hemodialysis (2 points), congestive heart failure (1 point), peptic ulcer disease (1 point), diabetes (1 point), cerebrovascular disease (1 point), and severe liver disease (4 points). The 30-day mortality rates in the derivation group were 4.4%, 13.4%, 24.5%, and 32.5% among very low- (0 point), low- (1–3 point(s)), intermediate- (4–6 points), and high- (7–13 points) risk patients. Compared to the very-low-risk group, the low-risk (OR=3.332), intermediate-risk (OR=7.004), and high-risk groups (OR=10.410, p<0.001) exhibited higher odds of 30-day mortality. We identified similar results in the validation group. The areas under the ROC curve were 0.677 and 0.696 in the derivation and validation groups. Our prediction model, SAMIMS, allowed for the stratification of the patients’ 30-days-mortality risk of surgery for acute mesenteric infarction.
Sonnenfleckenzeichnung Nr. 87.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 30.04.2012, 07:30, erstellt von Marco Cagnotti
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 2012

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 3.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
On the lack of women researchers in the Middle East & North Africa
Creators: name: El-Ouahi, Jamal
name: Lariviere, Vincent
Publisher: name: arXiv
Year: 2022
Subjects: subject: Digital Libraries (cs.DL)
subject: FOS: Computer and information sciences

description: Recent gender policies in the Middle East and North Africa (MENA) region have improved legal equality for women with noticeable effects in some countries. The implications of these policies on science, however, is not well-understood. This study applies a bibliometric lens to describe the landscape of gender disparities in scientific research in MENA. Specifically, we examine 1.7 million papers indexed in the Web of Science published by 1.1 million authors from MENA between 2008 and 2020. We used bibliometric indicators to analyse potential disparities between men and women in the share of authors, research productivity, and seniority in authorship. The results show that gender parity is far from being achieved in MENA. Overall, men authors obtain higher representation, research productivity, and seniority. But some countries standout: Tunisia, Lebanon, Turkey, Algeria and Egypt have higher shares or women researchers compared to the rest of MENA countries. The UAE, Qatar, and Jordan have shown progress in terms of women participation in science, but Saudi Arabia lags behind. We find that women are more likely to stop publishing than men and that men publish on average between 11% and 51% more than women, with this gap increasing over time. Finally, men, on average, achieved senior positions in authorship faster than women. Our longitudinal study contributes to a better understanding of gender disparities in science in MENA which is catching up in terms of policy engagement and women representation. However, the results suggest that the effects of the policy changes have yet to materialize into distinct improvement in women's participation and performance in science.
description: 29 pages, 11 figures, 4 tables