cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Uniform finite time stabilisation of non-smooth and variable structure systems with resets
Creators: name: Oza, Harshal
Publisher: name: University of Kent
Year: 2022

description: This thesis studies uniform finite time stabilisation of uncertain variable structure and non-smooth systems with resets. Control of unilaterally constrained systems is a challenging area that requires an understanding of the underlying mechanics that give rise to reset or jumps while synthesizing stabilizing controllers. Discontinuous systems with resets are studied in various disciplines. Resets in states are hard nonlinearities. This thesis bridges non-smooth Lyapunov analysis, the quasi-homogeneity of differential inclusions and uniform finite time stability for a class of impact mechanical systems. Robust control synthesis based on second order sliding mode is undertaken in the presence of both impacts with finite accumulation time and persisting disturbances. Unlike existing work described in the literature, the Lyapunov analysis does not depend on the jumps in the state while also establishing proofs of uniform finite time stability. Orbital stabilization of fully actuated mechanical systems is established in the case of persisting impacts with an a priori guarantee of finite time convergence between t he periodic impacts. The distinguishing features of second order sliding mode controllers are their simplicity and robustness. Increasing research interest in the area has been complemented by recent advances in Lyapullov based frameworks which highlight the finite time Convergence property. This thesis computes the upper bound on the finite settling time of a second order sliding mode controller. Different to the latest advances in the area, a key contribution of this thesis is the theoretical proof of the fact that finite settling time of a second order sliding mode controller tends to zero when gains tend to infinity. This insight of the limiting behaviour forms the basis for solving the converse problem of finding an explicit a priori tuning formula for the gain parameters of the controller when and arbitrary finite settling time is given. These results play a central role ill the analysis of impact mechanical systems. Another key contribution of the thesis is that it extends the above results on variable structure systems with and without resets to non-smooth systems arising from continuous finite time controllers while proving uniform finite time stability. Finally, two applications are presented. The first application applies the above theoretical developments to the problem of orbital stabilization of a fully actuated seven link biped robot which is a nonlinear system with periodic impacts. The tuning of the controller gains leads to finite time convergence of the tracking errors between impacts while being robust to disturbances. The second application reports the outcome of an experiment with a continuous finite time controller.
Stereoselective carbon-carbon and carbon-heteroatom bond formation mediated by bifunctional organocatalysts
Creators: name: De Fusco, Claudia
Publisher: name: Universita degli studi di Salerno
Year: 2013
Subjects: subject: CHIM/06 CHIMICA ORGANICA
subject: Organocatalysis
subject: Michael
subject: Enantioselective

description: 2011 - 2012
description: This PhD work describes the development of different Michael and Michael type processes employing different bifunctional organocatalysts. All the processes studied involved a non-covalent activation of the substrates provided by the organic promoters. An asymmetric epoxidation of electron-poor trisubstituted olefins has been developed by employing the commercially available diphenyl prolinol which afforded the epoxides in high yield, complete diastereocontrol and good enantioselectivity. Diaryl prolinols were found to promote a Michael addition of -ketoesters to nitroalkenes. An unexpected high efficiency and stereocontrol was observed with hexafluorobenzene as unconventional solvent, but also employed as an additive. A convenient tandem double Michael addition process was developed to access symmetrically and unsymmetrically 3,5-diaryl substituted cyclohexanones by using quinine as catalyst. An aziridination reaction of terminal electron-poor olefins has been disclosed by using a commercially available aminothiourea catalyst. The desired aziridines, bearing a quaternary stereocenter, were isolated in good yield and enantiocontrol. These compounds, were regioselectively ringopened to access valuable ,-disubstituted -amino ester derivatives. Finally an asymmetric Fischer indolization to produce helical molecules was investigated employing a chiral phosphoric acid as promoter and an ion-exchange polymer as ammonia scavenger. [edited by Author]
title: #UmbruchErleben
title: Wie erleben die Menschen die digitale Transformation?
titleType: Subtitle
Creators: name: Lühr, Thomas
name: Ziegler, Alexander
name: Vogl, Elisabeth
name: Boes, Andreas
Publisher: name: bidt - Bayerisches Forschungsinstitut für Digitale Transformation
Year: 2020
Subjects: subject: FOS: Sociology
subject: FOS: Computer and information sciences

description: Zur Frage, wie die Menschen die digitale Transformation erleben, zeichnet die bisherige Forschung kein einheitliches Bild. In der öffentlichen Debatte dominiert jedoch die Auffassung, dass die Menschen in Deutschland der Digitalisierung eher skeptisch gegenüberstehen würden. Im Rahmen des explorativen Forschungsprojekts #UmbruchErleben haben wir daher in umfangreichen Interviews mit den Menschen selbst über ihre Erfahrungen in der digitalen Transformation gesprochen. Die Gespräche zeigen, dass sich die Digitalisierung längst im Bewusstsein der Bevölkerung verankert hat und das Erleben der digitalen Transformation sehr vielschichtig ist. Ob die digitale Transformation eher in einem Angst- oder in einem Hoffnungsszenario erlebt wird, hängt im Kern davon ab, wie die Menschen die Auswirkungen jeweils auf ihre eigene Handlungsfähigkeit einschätzen und welche Erfahrungen sie damit machen.
description: Previous research does not paint a consistent picture of how people experience digital transformation. However, in public debate the dominant view is that people in Germany would tend to be rather sceptical about the subject. As part of the exploratory research project “Living Through a Period of Change”, therefore, we have undertaken extensive interviews with people from all walks of life about their own experiences with digital transformation. These conversations demonstrate that digitalisation has long become anchored in a popular view that experiencing digital transformation is something extremely complex. Whether this transformation is experienced in a scenario of fear rather than hope depends essentially on how people assess the effects on their own capacity to act and what they experience thereby.
Research Software and RS Engineering in the NFDI
Creators: name: Flemisch, Bernd
name: Hammitzsch, Martin
Publisher: name: Zenodo
Year: 2023

description: Poster presented at the deRSE23. It explains the role of research software for and within Germany's National Research Data Infrastructure NFDI. In particular, it presents the Working Group "Research Software Engineering" of the NFDI Section Common Infrastructures.
description: B.F. would like to thank the Federal Government and the Heads of Government of the Länder, as well as the Joint Science Conference (GWK), for their initiative and support within the framework of the NFDI4Ing consortium (German Research Foundation (DFG) - project number 442146713).
CASE TECHNOLOGY IN CHEMISTRY LESSONS
Creators: name: A. J. Kurbanova
name: Q. U. Komilov
name: S. I. Badalova
Publisher: name: Academic research in educational sciences
Year: 2020
Subjects: technology
case study
Chemistry
method

description: Recently, technologies of active learning, for example, design, ICT, technology for the development of critical thinking, case studies, etc., have become widespread. The article presents the methods used in Chemistry lessons.
title: Perception of occupational risks by radiographers
Creators: name: Ganhão, Daniela
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Radiographers
subject: Professional issues
subject: Management
subject: Digital radiography
subject: CT
subject: MR
subject: Health policy and practice
subject: Education
subject: Safety
subject: Occupational / Environmental hazards
subject: Education and training
subject: Patterns of Care

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Radiographers are exposed to occupational related health hazards, including physical and ergonomic, affecting posture, gait, performance and life quality leading to the manifestation of several musculoskeletal symptoms. Measuring worker perception...
Experimental device-independent verification of quantum steering
Creators: name: Kocsis, Sacha
name: Hall, Michael J. W.
name: Bennet, Adam J.
name: Saunders, Dylan J.
name: Pryde, G. J.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Bell nonlocality between distant quantum systems---i.e., joint correlations which violate a Bell inequality---can be verified without trusting the measurement devices used, nor those performing the measurements. This leads to unconditionally secure protocols for quantum information tasks such as cryptographic key distribution. However, complete verification of Bell nonlocality requires high detection efficiencies, and is not robust to the typical transmission losses that occur in long distance applications. In contrast, quantum steering, a weaker form of quantum correlation, can be verified for arbitrarily low detection efficiencies and high losses. The cost is that current steering-verification protocols require complete trust in one of the measurement devices and its operator, allowing only one-sided secure key distribution. We present device-independent steering protocols that remove this need for trust, even when Bell nonlocality is not present. We experimentally demonstrate this principle for singlet states and states that do not violate a Bell inequality.
description: 7 pages, 3 figures
Systematic Investigation on the Mechanisms for Water Responsive Actuation Using Commercial Sewing Threads
Creators: name: Lee, Junghwan
name: Park, Yaewon
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biophysics
subject: Space Science
subject: Molecular Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Inorganic Chemistry
subject: Science Policy

description: Water-responsive materials alter their volumes in response to relative humidity changes. Recent progress in water-responsive materials demonstrates that this novel category of materials can perform better than natural muscles and conventional actuators by utilizing sustainable and renewable water energy. Textile fibers make excellent candidates for viable water-responsive actuators due to their scalability. However, the lack of a fundamental understanding of water responsiveness impedes their real-world applications. In this research, we selected seven different types of commercially available sewing threads: natural cellulose (cotton, flax). natural protein (wool, silk). regenerated cellulose (rayon), and synthetic (nylon, polyester) to systematically investigate their water-responsive behavior. All the sewing threads, without any chemical nor physical modification, except for polyester, repeatedly lifted a weight in response to humidity changes and generated higher specific energy density (15–210 J/kg) than mammalian muscles (8 J/kg). While the maximum water sorption by a sewing thread does not directly correlate to its mechanical actuation, the disruption of intermolecular hydrogen bonding between polymer chains by sorbed water seems critical for WR tensile actuation. In addition, the twisting of fibers to the right degree could direct the WR actuation in the desired direction. Our research with common threads sheds light on the water-responsive mechanisms and provides design guidelines for a large-scale water-responsive actuator applicable in various engineering systems, including energy harvesting, soft robotics, and protective gears that can help expand the applicability of natural fibers.
Para-orthogonal polynomials on the unit circle satisfying three term recurrence formulas
Creators: name: Bracciali, Cleonice F.
name: Ranga, Alagacone Sri
name: Swaminathan, Anbhu
Publisher: name: arXiv
Year: 2014
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 42C05, 33C47

description: When a nontrivial measure $μ$ on the unit circle satisfies the symmetry $dμ(e^{i(2π-θ)}) = - dμ(e^{iθ})$ then the associated OPUC, say $S_n$, are all real. In this case, Delsarte and Genin, in 1986, have shown that the two sequences of para-orthogonal polynomials $\{zS_{n}(z) + S_{n}^{\ast}(z)\}$ and $\{zS_{n}(z) - S_{n}^{\ast}(z)\}$ satisfy three term recurrence formulas and have also explored some further consequences of these sequences of polynomials such as their connections to sequences of orthogonal polynomials on the interval $[-1,1]$. The same authors, in (1988), have also provided a means to extend these results to cover any nontrivial measure on the unit circle. However, only recently in Costa, Felix and Sri Ranga (2013) and then in Castillo, Costa, Sri Ranga and Veronese (2014), the extension associated with the para-orthogonal polynomials $zS_{n}(z) - S_{n}^{\ast}(z)$ was thoroughly explored, especially from the point of view of the three term recurrence, and chain sequences play an important part in this exploration. The main objective of the present manuscript is to provide the theory surrounding the extension associated with the para-orthogonal polynomials $zS_{n}(z) + S_{n}^{\ast}(z)$ for any nontrivial measure on the unit circle. Like in Costa, Felix and Sri Ranga (2013) and Castillo, Costa, Sri Ranga and Veronese (2014), chain sequences also play an important role in this theory. Examples and applications are also provided to justify the results obtained.
title: Künstliche Intelligenz verstehen und gestalten
Creators: name: Stürz, Roland A.
name: Stumpf, Christian
name: Mendel, Ulrike
Publisher: name: bidt - Bayerisches Forschungsinstitut für Digitale Transformation
Year: 2020
Subjects: subject: FOS: Social sciences
subject: FOS: Computer and information sciences

description: Die Studie des bidt gibt Einblicke in die Stimmungen und Meinungen der erwachsenen Internetnutzerinnen und -nutzer in Deutschland zu Künstlicher Intelligenz (KI). Die Ergebnisse der repräsentativen Befragung zeigen u. a., wie weit Wissen über KI verbreitet ist, ob KI eher als Chance oder als Gefahr wahrgenommen wird und wie die Rolle des Wirtschaftsstandortes Deutschland in Sachen KI eingeschätzt wird. Ferner wurde erhoben, ob die Befragten mehr staatliche Regulierung und Kontrolle von KI für nötig erachten. Ein zentraler Befund ist, dass nur wenige Befragte ein tieferes Verständnis von KI besitzen.
title: Complications secondary to pulmonary resection surgery: what the radiologist should know.
Creators: name: Sánchez-Serrano, Irene
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Neoplasia
subject: Fistula
subject: Surgery
subject: Complications
subject: CT
subject: Conventional radiography
subject: Thorax
subject: Respiratory system

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: To revise the main complications after pulmonary resection surgery and its different patterns on radiographs and CT. To learn about the risk factors associated with each...
INTELLECTUAL TRAINING OF STUDENTS OF TECHNICAL INSTITUTE
Creators: name: A. J. Kurbanova
name: Q. U. Komilov
name: S. I. Badalova
Publisher: name: Academic research in educational sciences
Year: 2020
Subjects: intellectual
intellectual training
intellectual universals
psychological and pedagogical analysis

description: How in modern conditions to improve the quality of chemical training at a technical university? The author connects the answer to the data and other questions with the improvement and development of the forms, methods and techniques of students' intellectual training, the development of their intellectual universals throughout the entire learning process at the university. Among intellectual universals, intellectual abilities are given priority. In this regard, a psychological and pedagogical analysis of this phenomenon is carried out in the article, species diversity is given. Certain techniques, forms, methods for improving intellectual abilities that play a leading role in improving the quality of training of specialists are shown.
DIRBE Comet Trails
Creators: name: Arendt, Richard G.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Re-examination of the COBE DIRBE data reveals the thermal emission of several comet dust trails. The dust trails of 1P/Halley, 169P/NEAT, and 3200 Phaethon have not been previously reported. The known trails of 2P/Encke, and 73P/Schwassmann-Wachmann 3 are also seen. The dust trails have 12 and 25 micron surface brightnesses of <0.1 and <0.15 MJy/sr, respectively, which is <1% of the zodiacal light intensity. The trails are very difficult to see in any single daily image of the sky, but are evident as rapidly moving linear features in movies of the DIRBE data. Some trails are clearest when crossing through the orbital plane of the parent comet, but others are best seen at high ecliptic latitudes as the Earth passes over or under the dust trail. All these comets have known associations with meteor showers. This re-examination also reveals one additional comet and 13 additional asteroids that had not previously been recognized in the DIRBE data.
description: 11 pages. Accepted for publication in AJ. The movies (which will appear in the AJ) are not included here
title: Laboratory experiments and educational software
title: For first year physics students
titleType: AlternativeTitle
title: Εργαστηριακές ασκήσεις και εκπαιδευτικό λογισμικό
title: Για πρωτοετείς φοιτητές Φυσικής
titleType: AlternativeTitle
Creators: name: Tsakonas, Panagiotis
name: Kapotis, Efstratios
Publisher: name: Kallipos, Open Academic Editions
Year: 2022
Subjects: Οδηγός εργαστηριακών πειραμάτων
Κινηματική
Μηχανική
Ηλεκτρισμός
Εκπαιδευτικό λογισμικό
Προσομοίωση
Οπτικοποίηση
Laboratory experiments guide
Kinematics
Mechanics
Electricity
Educational software
Simulation
Visualisation

description: The book is intended for first-year students of Physics Departments and in general students who major in physical science or takes specific Physics courses. It includes: 1. A theoretical background for executing experiments (laboratory regulations, error theory, proper use of experimental equipment including sensors, software for composing a laboratory report, mathematical methods, etc.), 2. Exercise guidelines including • a brief theoretical presentation with selected facts from science history, • instructions for o setting up the experimental equipment, o taking and processing measurements of physical quantities, o plotting graphs, o evaluating results o stating conclusions • revision questions 3. Downloadable PC software (free of charge) for simulating, visualising and extending experimentation, developed to support additional activities for each laboratory exercise, 4. Laboratory regulation, personnel and equipment protection measures, mathematical supplement, standard laboratory report sample, supplementary theory elements
description: Το σύγγραμμα απευθύνεται σε πρωτοετείς φοιτητές Τμημάτων Φυσικής και γενικότερα φοιτητές / σπουδαστές με αντικείμενο σπουδών που περιλαμβάνει μαθήματα Φυσικής. Περιλαμβάνει: 1. Θεωρητικό υπόβαθρο για την εκτέλεση εργαστηριακών ασκήσεων (κανονισμό εργαστηρίου, θεωρία σφαλμάτων, χρήση πειραματικού εξοπλισμού που περιλαμβάνει αισθητήρες, λογισμικά για την σύνθεση εργαστηριακής έκθεσης, μαθηματικές μεθόδους, κ.λπ.), 2. Οδηγό άσκησης που περιλαμβάνει • σύντομη παρουσίαση της θεωρίας και επιλεγμένων ιστορικών στοιχείων, • οδηγίες για την o σύνθεση της πειραματικής διάταξης, o λήψη και επεξεργασία μετρήσεων, o σχεδίαση γραφημάτων, o αξιολόγηση αποτελεσμάτων, o διατύπωση συμπερασμάτων • ερωτήσεις ανασκόπησης 3. Δωρεάν παρεχόμενο λογισμικό προσομοίωσης, οπτικοποίησης και επέκτασης του πειραματισμού μέσω Η/Υ, που αναπτύχθηκε για την υποστήριξη πρόσθετων δραστηριοτήτων εμβάθυνσης για κάθε προτεινόμενη εργαστηριακή άσκηση, 4. Κανονισμό εργαστηρίου, μέτρα προστασίας προσωπικού και εξοπλισμού, μαθηματικό συμπλήρωμα, υπόδειγμα πρότυπης εργαστηριακής αναφοράς, συμπληρωματικά στοιχεία θεωρίας.
title: Exploring the added clinical value of breast MRI after contrast-enhanced spectral mammography in patients with invasive lobular carcinoma
Creators: name: van Nijnatten, Thiemo
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Breast
subject: Mammography
subject: Contrast agent-intravenous

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Invasive lobular carcinoma (ILC) is the second most common histologic type of breast cancer occuring in approximately 10-15% of all breast cancer patients 1 . ILC is often mammographically occult and multifocal, consequently breast MRI in addition...
КОР БО ЛЕКСИКА ДАР СИНФҲОИ ИБТИДОӢ
Creators: name: Алиҷон Каримжонов
Publisher: name: Academic research in educational sciences
Year: 2020
Subjects: калимаҳои сермаъно
синнонимҳо
калимаҳои муқобилмаъно
машқҳои грамматикӣ
имло
машқҳои лексикӣ
принсип
услуб
ифоданокии нутқ
хунук
сармо
сард
қаҳратун

description: Дар ҷумҳурии Ӯзбекистон ба ривоҷдиҳии забонҳои хориҷӣ яъне забони модарӣ хусусан ба омӯзиши хабони тоҷикй диққати ҷиддӣ дода истоааст. Бо ташаббуси президенти диёрамон дар мамлакат ба такмилили тарбия дар синфҳои ибтидоӣ, ки асоси пойдевори инкишофи илму фарҳанг мебошад диққати беандоза дода истодааст. Хусусан дар чумҳурй диққати ҷиддӣ додан ба забони бойтарини форсу тоҷик ва амали намудани забонҳо дар таълими мактабҳои олй моро водор месозад, ки ба омўхтани тарзи ташкили таълиму тарбия ба забони точикй саҳмгузорй намоем.
title: Ethische Deliberation für agile Softwareprozesse: EDAP-Schema
Creators: name: Zuber, Niina
name: Kacianka, Severin
name: Pretschner, Alexander
name: Nida-Rümelin, Julian
Publisher: name: bidt - Bayerisches Forschungsinstitut für Digitale Transformation
Year: 2020
Subjects: subject: FOS: Philosophy, ethics and religion
subject: FOS: Computer and information sciences

description: Wie trifft man eine ethisch richtige Entscheidung? Aufgrund des zunehmenden Einsatzes von Softwaresystemen
in immer mehr gesellschaftlichen Bereichen kommt dieser Frage bei der Entwicklung von
Softwaresystemen eine wachsende Bedeutung zu. Ethische Entscheidungen, die sich auch in Algorithmen
abbilden, haben durch ihre Anwendung im Maschinellen Lernen oder in autonomen Systemen oft
Auswirkungen auf sehr viele Menschen. Es ist daher wichtig, dass Entscheidungen, die das Design der
Softwareanwendung bedingen, klar argumentiert und nachvollziehbar sind. Derzeit gibt es für aktuelle
Softwareentwicklungsprozesse keine Methoden, um ethische Deliberationen zu integrieren. In diesem
Papier stellen wir mit dem EDAP-Schema (Ethische Deliberation für agile Prozesse) ein Tool vor, dass es
agilen Teams erlaubt, die ethische Dimension ihrer Entwicklungsentscheidungen zu strukturieren, klar zu
kommunizieren und schlüssig zu deliberieren. Dadurch können diese Entscheidungen von Dritten
nachvollzogen und geprüft werden.
Supplementary 1: Fold change and annotation of differentially expressed circRNAs in papillary thyroid carcinoma compared to normal thyroid tissues
Creators: name: EA, Toraih
name: MH, Hussein
name: MS, Fawzy
name: E, Kandil
Publisher: name: Zenodo
Year: 2022
Subjects: Thyroid cancer
circular RNAs
Diffrential expression
In silico analysis

description: Supplementary Table: Fold change and annotation of differentially expressed circRNAs in papillary thyroid carcinoma compared to normal thyroid tissues
title: The usefulness of protocol The “Essential Six” in the diagnosis of epileptogenic lesions in children with pharmacoresistant epilepsy.
Creators: name: Wozniak, Magdalena
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Congenital
subject: Diagnostic procedure
subject: MR
subject: CNS

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Magnetic resonance imaging (MRI) is a key imaging technique in the diagnosis of patients with epilepsy. It can contribute to the identification of patients who are, in the case of pharmacoresistance, good candidates for epilepsy...
ОРОЛ БЎЙИ ҲУДУДЛАРИ ЎСИМЛИК ҚОПЛАМИНИНГ ҚИСҚАЧА ТАВСИФИ
Creators: name: Бахтиёр Рамазонович Рамазонов
Publisher: name: Academic research in educational sciences
Year: 2020
Subjects: Орол бўйи
саҳроланиш
деградация
ўсимликлар қоплами
Амударёнинг дельтаси
ботқоқ тўқай
галофит
ландшафт
биологик хилма-хиллик.

description: Ушбу мақолада Орол бўйи ҳудудларида тарқалган ўсимликларнинг, саҳроланиш, деградация жараёнлари, сув ресурсларининг кескин камайганлиги натижасида, бу ҳудудларда тарқалган ўсимлик қопламининг муттасил йўқолиб бораётганлиги, биологик хилма-хилликнинг камайиб бораётганлиги тўғрисида фикр юритилади. Шу билан бирга, Амударёнинг дельта қисми ҳудудларида ўсимликларнинг сув-ботқоқ тўқай, галофит, саҳро ёки чўл туркумлари тўғрисида, айниқса юқори намланиш зоналарида учрайдиган сув-ботқоқ ўсимликлари Typha – рогоза, Phragmites australis – тростник, Ceattophyllum – роголистник формацияси ўсимликлари, сув-ботқоқли ерлар майдонининг жадал қисқариши оқибатида ўсимликларнинг турли-туман хиллари, шу билан бирга тарқалиш майдонлари масштаби ҳам алмашганлиги, Орол бўйи ҳудудларидаги кўллар ва даврий равишда сув босиладиган зоналарда энг кўп тарқалаган ўсимликлар – бу қамиш (тростник) формацияси туркуми тўғрисида фикр юритилади.
How modelers construct energy costs: Discursive elements in Energy System and Integrated Assessment Models
Creators: name: Ellenbeck, Saskia
name: Lilliestam, Johan
Publisher: name: Amsterdam [u.a.] : Elsevier
Year: 2019
Subjects: subject: Constructivism
subject: Discourses
subject: Energy models
subject: Integrated assessment models
subject: SKAD
subject: 624

description: Energy system and integrated assessment models (IAMs) are widely used techniques for knowledge production to assess costs of future energy pathways and economic effects of energy/climate policies. With their increased use for policy assessment and increasing dominance in energy policy science, such models attract increasing criticism. In the last years, such models – especially the highly complex IAMs, have been accused of being arbitrary. We challenge this view and argue that the models and their assumptions are not arbitrary, but they are normative and reflect the modelers’ understanding of the functioning of the society, the environment-societal relations and respective appropriate scientific tools and theories – in short: models are shaped by discursive structures, reproducing and reinforcing particular societal discourses. We identify 9 distinct paths, all relating to crucial model decisions, via which discourses enter models: for each of these decisions, there are multiple “correct” answers, in the sense that they can be justified within a particular discourse. We conclude that decisions of modelers about the structure and about assumptions in energy modeling are not arbitrary but contingent to the discursive context the modeler is related to. This has two implications. First, modelers and consumers of model output must reflect on what a model and its assumptions represent, and not only whether are they correct. Second, models hardly need to add more (mathematical) complexity, but rather be reduced and simplified so that they can continue to fulfill their main function as formalized and powerful instruments for thought experiments about future energy pathways.
АСОСИЙ ЭКИН СИФАТИДА ЭКИЛГАН АЙРИМ МАҲАЛЛИЙ ВА ХОРИЖИЙ СОЯ НАВЛАРИНИНГ ҲОСИЛДОРЛИК КЎРСАТКИЧЛАРИ
Creators: name: Ҳ. Х. Матниязова
name: М. А. Холиқова
Publisher: name: Academic research in educational sciences
Year: 2020
Subjects: соя
асосий экин
хўжалик
дуккак

description: Ушбу мақолада Самарқанд вилоятида асосий экин сифатида экилган соя навларининг муҳим морфохўжалик белгиларидан бири бўлган битта ўсимликдаги ҳосилдорлик кўрсаткичи ўрганилди. Олинган маълумотларга кўра хорижий навларда Қозоғистон навларидан Нена нави, Россия навларидан Спарта нави ва маҳаллий навлардан Орзу навида дуккаклаш ва 1000 та дон оғирлиги бўйича юқори кўрсаткич қайд этилди.
The evolution of accretion in young stellar objects: Strong accretors at 3 - 10 Myr
Creators: name: Ingleby, Laura
name: Calvet, Nuria
name: Hernandez, Jesus
name: Briceno, Cesar
name: Miller, Jon
name: Espaillat, Catherine
name: McClure, Melissa
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: While the rate of accretion onto T Tauri stars is predicted to decline with age, objects with strong accretion have been detected up to ages of 10 Myr. We analyze a sample of these old accretors identified by having a significant $U$ band excess and infrared emission from a circumstellar disk. Objects were selected from the ~3 Myr sigma Ori, 4-6 Myr Orion OB1b and 7-10 Myr Orion OB1a star forming associations. We use high resolution spectra from the Magellan Inamori Kyocera Echelle to estimate the veiling of absorption lines and calculate extinction for our T Tauri sample. We also use observations, obtained with the Magellan Echellette and in a few cases the SWIFT Ultraviolet and Optical Telescope, to estimate the excess produced in the accretion shock, which is then fit with accretion shock models to estimate the accretion rate. We find that even objects as old as 10 Myr may have high accretion rates, up to ~10^-8 msun/ yr. These objects cannot be explained by viscous evolution models, which would deplete the disk in shorter timescales, unless the initial disk mass is very high, a situation which is unstable. We show that the infrared spectral energy distribution of one object, CVSO 206, does not reveal evidence of significant dust evolution, which would be expected during the 10 Myr lifetime. We compare this object to predictions from photoevaporation and planet formation models and suggest that neither of these processes have had a strong impact on the disk of CVSO 206.
description: 13 pages, 9 figures, accepted by ApJ
TEACHING ENGLISH AS A SECOND FOREIGN LANGUAGE
Creators: name: Anjella Reymova
name: Zairova, Nargiza
Publisher: name: Academic research in educational sciences
Year: 2020
Subjects: second foreign language
first foreign language
native language
comparative-contrastive analysis
transference
interference
transposition

description: The present article is dedicated to the investigation of the process of teaching English as the second foreign language. The study requires taking into consideration the linguistic experience of students. We have found out that this process should be based on the results of the comparative-contrastive analysis of the contacting languages: English, German and Karakalpak (the Mother Tongue of the students). In order to overcome the transference and to develop the educational process, comparative study of language phenomena is necessary.
Diritti, Carte e politiche pubbliche
Creators: name: Cassetti, Luisa
Publisher: name: Universita' degli Studi di Salerno
Year: 2020
Subjects: Multilevel protection of Fundamental Rights
Public policies
Constitutional justice
European Union
ECHR

description: In the European multilevel protection of fundamental rights, which involves the national judicial system, the supranational bodies and the international protection of human rights, the relations between Constitutional Court and EU Court of Justice are part of a legal system built on public policies, sources of law and measures necessary for their implementation: in this perspective, the recent claim of the «priority» of constitutional justice (when a constitutional guarantee also reproduced in the European Charter of Fundamental Rights is at stake) poses different interpretative problems compared to the current state of relations between Constitutional Court and European Court of Human Rights. In the ECHR context, the claim of the «highest level» of protection guaranteed by the constitutional system revolves exclusively around the definition of the individual fundamental right and the interpretation of its limits.
title: The prostate anatomy, a useful tool for clinical practice: assessed through augmented reality
Creators: name: Tapia, Maria
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Anatomy
subject: Pelvis
subject: Genital / Reproductive system male
subject: MR
subject: Computer Applications-Virtual imaging
subject: Education and training

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: To reduce the imprecision of the location of prostatic lesions. Describe the prostate anatomy in magnetic resonance through augmented...
title: Quantum dot-labelled antibody to quantify expression of the EGF family of receptors and ligands in breast cancer specimens
Creators: name: Zona, Stefania
Publisher: name: University of Kent
Year: 2022

description: The epidermal growth factor receptors (ErhBl, ErbB2, ErbB3 and ErbB4) have become an attractive target for drug development. In particular ErbB2 is one of the most important biomarkers routinely used to predict breast cancer patients' response to Herceptin, an effective drug for the treatment of breast cancers expressing high levels of ErbB2. The current techniques in clinical use for the assessment of ErbB2 are immunohistochemistry (IHC) and fluorescence in situ hybridization (FISH); however both. IHC and FISH have several limitations which may result in patient misclassification. Using Quantum dots (Qdot) labelled antibodies, laser scanning confocal microscopy and image segmentation techniques, we have developed a new system which provides a more linear and scalable quantification of ErbB2 expression in formalin fixed paraffin embedded breast cancers. We first demonstrated that the Qdot system could reliably detect ErbB2 expression in IHC 3+ and 2+ cases on a tissue microarray containing 60 samples of formalin fixed paraffin embedded breast cancer sections. We then apply the system to quantify ErbB2 expression in 145 primary breast cancers treated with Herceptin, all previously classified as 3+ or 2+ by IHC or FISH positive. A comparison of immunofluorescent staining with conventional immunohistochemistry showed that the Qdot system gives more linear and scalable measurements of receptor levels. In both breast tumour sets the system detected very different levels of ErbB2 expression extending over a sixty fold range. We have evaluated the correlation between ErbB2 receptor levels, measured by Qdots, and patient's response to Herceptin. These preliminary data showed better survival in the high ErbB2 expressing cases which is consistent with the hypothesis that Herceptin has a greater benefit in patients with high ErbB2 levels.
Quality OA resources is everyone's responsibility!
Creators: name: BEQUET, Gaelle
Publisher: name: Zenodo
Year: 2023
Subjects: Scholarly journals
Open access publications
ISSN

description: The presentation was delivered at the 2022 Charleston Library Conference. It introduces the Directory of Open Access Scholarly Resources (ROAD), managed by the ISSN International Centre. ROAD selection criteria were reviewed and tightened in 2022 and about 3,000 journals were reassessed accordingly.
ALI SHARIATIY DINIY-FALSAFIY TA’LIMOTINING MARKAZIDA INSON MUAMMOSI
Creators: name: Mansurov, Ulugbek Jumayevich
Publisher: name: Academic research in educational sciences
Year: 2020
Subjects: islom jamiyati
ayollar erkinligi
borliq
Qur’ondagi g’oyalar
inson mohiyati.

description: Mazkur maqolada, Eron faylasufi hamda diniy olimi Ali Shariatiy diniy-falsafiy ta’limotida inson muammosi, ayollar erkinligi bilan bir qatorda inson va borliq hamda din o’rtasidagi o’zaro bog’liqliklar ochib berilgan. Bu orqali, Eron jamiyatidagi ijtimoiy muammolarga e’tibor qaratilgan.
Performance Analysis and Location Optimization for Massive MIMO Systems with Circularly Distributed Antennas
Creators: name: Yang, Ang
name: Jing, Yindi
name: Xing, Chengwen
name: Fei, Zesong
name: Kuang, Jingming
Publisher: name: arXiv
Year: 2014
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: In this paper, we analyze the achievable rate of the uplink of a single-cell multi-user distributed massive multiple-input-multiple-output (MIMO) system. The multiple users are equipped with single antenna and the base station (BS) is equipped with a large number of distributed antennas. We derive an analytical expression for the asymptotic ergodic achievable rate of the system under zero-forcing (ZF) detector. In particular, we consider circular antenna array, where the distributed BS antennas are located evenly on a circle, and derive an analytical expression and closed-form tight bounds for the achievable rate of an arbitrarily located user. Subsequently, closed-form bounds on the average achievable rate per user are obtained under the assumption that the users are uniformly located in the cell. Based on the bounds, we can understand the behavior of the system rate with respect to different parameters and find the optimal location of the circular BS antenna array that maximizes the average rate. Numerical results are provided to assess our analytical results and examine the impact of the number and the location of the BS antennas, the transmit power, and the path-loss exponent on system performance. It is shown that circularly distributed massive MIMO system largely outperforms centralized massive MIMO system.
description: Single column, 30 pages, 8 figures. Submitted to IEEE Transactions on Wireless Communications
Thermal emission of neutron stars with internal heaters
Creators: name: Kaminker, A. D.
name: Kaurov, A. A.
name: Potekhin, A. Y.
name: Yakovlev, D. G.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Using 1D and 2D cooling codes we study thermal emission from neutron stars with steady state internal heaters of various intensities and geometries (blobs or spherical layers) located at different depths in the crust. The generated heat tends to propagate radially, from the heater down to the stellar core and up to the surface; it is also emitted by neutrinos. In local regions near the heater the results are well described with the 1D code. The heater's region projects onto the stellar surface forming a hot spot. There are two heat propagation regimes. In the first, conduction outflow regime (realized at heat rates $H_0 \lesssim 10^{20}$ erg cm$^{-3}$ s$^{-1}$ or temperatures $T_\mathrm{h} \lesssim 10^9$ K in the heater) the thermal surface emission of the star depends on the heater's power and neutrino emission in the stellar core. In the second, neutrino outflow regime ($H_0 \gtrsim 10^{20}$ erg cm$^{-3}$ s$^{-1}$ or $T_\mathrm{h} \gtrsim 10^9$ K) the surface thermal emission becomes independent of heater's power and the physics of the core. The largest (a few per cent) fraction of heat power is carried to the surface if the heater is in the outer crust and the heat regime is intermediate. The results can be used for modeling young cooling neutron stars (prior to the end of internal thermal relaxation), neutron stars in X-ray transients, magnetars and high-$B$ pulsars, as well as merging neutron stars.
description: 13 pages, 7 figures, 4 tables, accepted for publication in MNRAS
Time regularity and long-time behavior of parabolic $p$-Laplace equations on infinite graphs
Creators: name: Hua, Bobo
name: Mugnolo, Delio
Publisher: name: arXiv
Year: 2014
Subjects: subject: Dynamical Systems (math.DS)
subject: Analysis of PDEs (math.AP)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 39A12, 47H20, 05C50

description: We consider the so-called \emph{discrete $p$-Laplacian}, a nonlinear difference operator that acts on functions defined on the nodes of a possibly infinite graph. We study the associated nonlinear Cauchy problem and identify the generator of the associated nonlinear semigroups. We prove higher order time regularity of the solutions. We investigate the long-time behavior of the solutions and discuss in particular finite extinction time and conservation of mass. Namely, on one hand, for small $p$ if an infinite graph satisfies some isoperimetric inequality, then the solution to the parabolic $p$-Laplace equation vanishes in finite time; on the other hand, for large $p,$ these parabolic $p$-Laplace equations always enjoy conservation of mass.
title: CF-SCRIbeR study: cystic fibrosis structured radiology report, standardisation of CT reporting in patients with pulmonary cystic fibrosis (CF)
Creators: name: Barattin, Giordana
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Thorax
subject: Lung
subject: Respiratory system
subject: CT
subject: PACS
subject: RIS
subject: Structured reporting
subject: Screening
subject: Socio-economic issues
subject: Outcomes
subject: Workforce
subject: Quality assurance

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Several studies have already shown the advantages of radiological structured report (STR) [1][2][3][4][5][6][7][8][9][10][11][12]. To the best of our knowledge, no studies have been published about STR for chest Computed Tomography (CT) in patients...
Reducing stranded assets through early action in the Indian power sector
Creators: name: Malik, Aman
name: Bertram, Christoph
name: Despres, Jacques
name: Emmerling, Johannes
name: Fujimori, Shinichiro
name: Garg, Amit
name: Kriegler, Elmar
name: Luderer, Gunnar
name: Mathur, Ritu
name: Roelfsema, Mark
name: Shekhar, Swapnil
name: Vishwanathan, Saritha
name: Vrontisi, Zoi
Publisher: name: Bristol : IOP Publ.
Year: 2020
Subjects: subject: Carbon lock-in
subject: Climate policy
subject: Coal
subject: India
subject: Nationally determined contribution (ndc)
subject: Power
subject: Stranded assets
subject: 590

description: Cost-effective achievement of the Paris Agreement's long-term goals requires the unanimous phase-out of coal power generation by mid-century. However, continued investments in coal power plants will make this transition difficult. India is one of the major countries with significant under construction and planned increase in coal power capacity. To ascertain the likelihood and consequences of the continued expansion of coal power for India's future mitigation options, we use harmonised scenario results from national and global models along with projections from various government reports. Both these approaches estimate that coal capacity is expected to increase until 2030, along with rapid developments in wind and solar power. However, coal capacity stranding of the order of 133–237 GW needs to occur after 2030 if India were to pursue an ambitious climate policy in line with a well-below 2 °C target. Earlier policy strengthening starting after 2020 can reduce stranded assets (14–159 GW) but brings with it political economy and renewable expansion challenges. We conclude that a policy limiting coal plants to those under construction combined with higher solar targets could be politically feasible, prevent significant stranded capacity, and allow higher mitigation ambition in the future.
Structures of Interplanetary Magnetic Flux Ropes and Comparison with Their Solar Sources
Creators: name: Hu, Qiang
name: Qiu, Jiong
name: Dasgupta, B.
name: Khare, A.
name: Webb, G. M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Magnetic reconnection is essential to release the flux rope during its ejection. The question remains: how does the magnetic reconnection change the flux rope structure? Following the original study of \citet{Qiu2007}, we compare properties of ICME/MC flux ropes measured at 1 AU and properties of associated solar progenitors including flares, filaments, and CMEs. In particular, the magnetic field-line twist distribution within interplanetary magnetic flux ropes is systematically derived and examined. Our analysis shows that for most of these events, the amount of twisted flux per AU in MCs is comparable with the total reconnection flux on the Sun, and the sign of the MC helicity is consistent with the sign of helicity of the solar source region judged from the geometry of post-flare loops. Remarkably, we find that about one half of the 18 magnetic flux ropes, most of them being associated with erupting filaments, have a nearly uniform and relatively low twist distribution from the axis to the edge, and the majority of the other flux ropes exhibit very high twist near the axis, of up to $\gtrsim 5$ turns per AU, which decreases toward the edge. The flux ropes are therefore not linear force free. We also conduct detailed case studies showing the contrast of two events with distinct twist distribution in MCs as well as different flare and dimming characteristics in solar source regions, and discuss how reconnection geometry reflected in flare morphology may be related to the structure of the flux rope formed on the Sun.
description: to appear in ApJ
title: Typical and atypical radiological manifestations of thoracic sarcoidosis with their pathologic correlation.
Creators: name: Wakulinski, Jacek
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Lung
subject: Mediastinum
subject: Thorax
subject: CT
subject: CT-High Resolution
subject: Digital radiography
subject: Diagnostic procedure
subject: Inflammation
subject: Pathology

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: 1. Describe typical and atypical radiological features of sarcoidosis in chest radiograph and CT and their pathological correlation. 2. Perform differential diagnosis of pulmonary sarcoidosis to establish diagnostic approach. 3. Perform sarcoidosis...
Road to glory or highway to hell? Global road access and climate change mitigation
Creators: name: Wenz, Leonie
name: Weddige, Ulf
name: Jakob, Michael
name: Steckel, Jan Christoph
Publisher: name: Bristol : IOP Publ.
Year: 2020
Subjects: subject: climate change mitigation
subject: economic development
subject: infrastructure access
subject: sustainable development goals
subject: 590

description: Transportation infrastructure is considered a key factor for economic development and poverty alleviation. The United Nations have explicitly included the provision of transport infrastructure access, e.g. through all-season road access, in their Sustainable Development Goal agenda (SDGs, target 9.1). Yet, little is known about the number of people lacking access to roads worldwide, the costs of closing existing access gaps and the implications of additional roads for other sustainability concerns such as climate change mitigation (SDG-13). Here we quantify, for 250 countries and territories, the percentage of population without road access in 2 km. We find that infrastructure investments required to provide quasi-universal road access are about USD 3 trillion. We estimate that the associated cumulative CO2 emissions from construction work and additional traffic until the end of the century amount to roughly 16 Gt. Our geographically explicit global analysis provides a starting point for refined regional studies and for the quantification of further environmental and social implications of SDG-9.1.