cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Untersuchung der Interessantheit von physikalischen Lernaufgaben für Studierende des Lehramts an Grundschulen
Creators: name: Maut, Christoph
Publisher: name: Humboldt-Universität zu Berlin
Year: 2023
Subjects: subject: Physik
subject: Didaktik
subject: Interessantheit
subject: Lernaufgaben
subject: Grundschullehramt
subject: physics
subject: didactics
subject: interestingness
subject: learning task
subject: pre-service teacher
subject: primary school
subject: 370 Bildung und Erziehung
subject: 530 Physik

description: Für die Lehre naturwissenschaftlicher Inhalte und einer damit verbundenen Ausprägung oder Verstärkung von Interesse spielt die Interessantheit eines Lerngegenstandes eine zentrale Rolle. Es ist jedoch nicht beschrieben, wie Grundschullehramtsstudierende für das Fach Naturwissenschaften die Interessantheit physikspezifischer Lernaufgaben bewerten und aus welchen Gründen diese Bewertung stattfindet. Um dies empirisch herauszufinden, wurden im Sommersemester 2021 teilnehmende Studierende des Kurses „Ausgewählte Themen der Physik” zur Interessantheit ausgewählter physikspezifischer Lernaufgaben befragt. Die Untersuchung der Befragung zeigt, dass Grundschullehramtstudierende die Interessantheit der Lernaufgaben überwiegend positiv bewerten. Für die Begründungen der Bewertungen wurde ein induktiv erstelltes Kategoriensystem ausgearbeitet, welches die Begründungen der Studierenden in drei kontextbezogene Kategorien (Alltagskontext, Lernkontext und Professionskontext) unterteilt. Aus diesen Erkenntnissen lassen sich Ideen zur Verbesserung der bestehenden und Erstellung neuer Lernaufgaben entwickeln.
description: The interestingness of a learning object plays a central role in the teaching of scientific content and the associated development or increase of interest. However, it is not described how pre-service primary school teachers of natural sciences evaluate the interestingness of physics-specific learning tasks and why this evaluation takes place. In order to find out empirically, the students were asked about the interestingness of selected physics-specific learning tasks in the 2021 summer semester course „Selected Topics in Physics”. The investigation of the survey shows that pre-service primary school teachers rate the interestingness of the learning tasks predominantly positively. An inductively created category system was developed for the reasons for the assessments, which divided the reasons given by the students into three context-related categories (everyday context, learning context and teaching context). These findings can be used to develop ideas for improving existing learning tasks and creating new ones.
Evaluating the reliability and validity of the Self-Compassion Scale adapted for children
Creators: name: Sutton, Esther
Publisher: name: University of British Columbia
Year: 2014

description: This study introduces the Self-Compassion Scale adapted for Children (SCS-C) and presents psychometric findings regarding its reliability and validity. A sample of 382 students in 4th to 7th grade provided data on the SCS-C and measures of mindfulness, self-concept, indicators of well-being, empathic-related responding, and prosocial goals. Teachers provided data on students’ social and emotional competence and empathy/sympathy. Results indicated a two-factor structure for the SCS-C with negatively-worded items and positively-worded items forming two discrete subscales each with high internal consistency. As predicted, students’ scores on the SCS-C were significantly related to multiple indicators of social and emotional well-being, demonstrating preliminary evidence of convergent validity. In addition, scores on the SCS-C were found to differ across grade level, with students in 5th grade reporting higher scores on the SCS-C than students in 4th grade and students in 6th grade. This study provides insight into the factor structure of the SCS-C, as well as the relations of self-compassion to other indicators of social and emotional well-being in childhood and pre-adolescence. Limitations and future directions are discussed with regard to the relevance of the SCS-C for research and applications.
One Bad Apple Spoils the Bunch: Exploiting P2P Applications to Trace and Profile Tor Users
Creators: name: Blond, Stevens Le
name: Manils, Pere
name: Abdelberi, Chaabane
name: Kaafar, Mohamed Ali Dali
name: Castelluccia, Claude
name: Legout, Arnaud
name: Dabbous, Walid
Publisher: name: arXiv
Year: 2011
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: Tor is a popular low-latency anonymity network. However, Tor does not protect against the exploitation of an insecure application to reveal the IP address of, or trace, a TCP stream. In addition, because of the linkability of Tor streams sent together over a single circuit, tracing one stream sent over a circuit traces them all. Surprisingly, it is unknown whether this linkability allows in practice to trace a significant number of streams originating from secure (i.e., proxied) applications. In this paper, we show that linkability allows us to trace 193% of additional streams, including 27% of HTTP streams possibly originating from "secure" browsers. In particular, we traced 9% of Tor streams carried by our instrumented exit nodes. Using BitTorrent as the insecure application, we design two attacks tracing BitTorrent users on Tor. We run these attacks in the wild for 23 days and reveal 10,000 IP addresses of Tor users. Using these IP addresses, we then profile not only the BitTorrent downloads but also the websites visited per country of origin of Tor users. We show that BitTorrent users on Tor are over-represented in some countries as compared to BitTorrent users outside of Tor. By analyzing the type of content downloaded, we then explain the observed behaviors by the higher concentration of pornographic content downloaded at the scale of a country. Finally, we present results suggesting the existence of an underground BitTorrent ecosystem on Tor.
Generation and detection of NOON states in superconducting circuits
Creators: name: Merkel, Seth T.
name: Wilhelm, Frank K.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: NOON states, states between two modes of light of the form $|N,0\rangle+e^{iϕ}|0,N\rangle$ allow for super-resolution interformetry. We show how NOON states can be efficiently produced in circuit quntum electrodynamics using superconducting phase qubits and resonators. We propose a protocol where only one interaction between the two modes is required, creating all the necessary entanglement at the start of the procedure. This protocol makes active use of the first three states of the phase qubits. Additionally, we show how to efficiently verify the success of such an experiment, even for large NOON states, using randomly sampled measurements and semidefinite programming techniques.
description: 15 pages and 3 figures
Generalized Semimagic Squares for Digital Halftoning
Creators: name: Kawamura, Akitoshi
Publisher: name: arXiv
Year: 2010
Subjects: subject: Computational Geometry (cs.CG)
subject: Combinatorics (math.CO)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: I.4.1; F.2.2; G.2.1
subject: 68U10, 65D18, 97A20

description: Completing Aronov et al.'s study on zero-discrepancy matrices for digital halftoning, we determine all (m, n, k, l) for which it is possible to put mn consecutive integers on an m-by-n board (with wrap-around) so that each k-by-l region holds the same sum. For one of the cases where this is impossible, we give a heuristic method to find a matrix with small discrepancy.
description: 6 pages, 6 figures
Absolute dimensions of detached eclipsing binaries. II. The metallic-lined system XY Ceti
Creators: name: Southworth, John
name: Pavlovski, K.
name: Tamajo, E.
name: Smalley, B.
name: West, R. G.
name: Anderson, D. R.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present phase-resolved spectroscopy and extensive survey photometry of the detached eclipsing binary system XY Cet, which is composed of two metallic-lined stars. We measure their masses to be 1.773 +/- 0.016 and 1.615 +/- 0.014 Msun and their radii to be 1.873 +/- 0.035 and 1.773 +/- 0.029 Rsun, resulting in logarithmic surface gravities of 4.142 +/- 0.016 and 4.149 +/- 0.014 (cgs). We determine effective temperatures of 7870 +/- 115 and 7620 +/- 125 K. The projected rotational velocities are 34.4 +/- 0.4 and 34.1 +/- 0.4 km/s, which are close to synchronous. Theoretical models cannot match all of these properties, but come closest for a solar helium and metal abundance and an age in the region of 850 Myr. We obtain the individual spectra of the two stars by the spectral disentangling method, and compare them to synthetic spectra calculated for the measured effective temperatures and a solar chemical composition. Both stars show enhanced abundances of iron-group elements and clear deficiencies of Ca I and Sc II, confirming their classification as Am stars. We also find strong overabundances of Zr II and the rare-earth species La II, Ce II and Nd II, a hallmark of chemically peculiar A-stars. XY Cet is a prime candidate for detailed spectroscopic analyses of metallic-lined stars whose masses and radii are known to accuracies of 1-2%.
description: Acccepted for publication in MNRAS. 12 pages, 8 tables, 9 figures. XY Cet has been added to the Catalogue of Well-studied Eclipsing Binaries at http://www.astro.keele.ac.uk/~jkt/debdata/debs.html
Understanding The Impact of Institutional Factors on Asnaf Sustainability: A Pls-Sem Approach
Creators: name: Haq, M Ashraf Al
name: Wahab, Norazlina Abd
name: Alam, Md. Mahmudul
Publisher: name: figshare
Year: 2022
Subjects: subject: 150301 Business Information Management (incl. Records, Knowledge and Information Management, and Intelligence)
subject: FOS: Economics and business

description: The study looked at the level of sustainable development, whether the institutional factors or often, the demographic changes over time, that might have an impact. The data was collected through 427 returned questionnaires among zakat recipients in eleven districts of Kedah, Malaysia, and analysed using the PLS-SEM.
Attaneuria ruralis
Creators: name: Grubbs, Scott A.
name: Pessino, Massimo
name: DeWalt, R. Edward
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Plecoptera
Perlidae
Attaneuria
Attaneuria ruralis

description: Attaneuria ruralis (Hagen) Collection records. USA, Michigan: Kalamazoo Co., Augusta Creek, Gull Lake Biological Station, 42.3633, -85.3535, 3.VII.1957, R.L. Fischer, ♂ (MSUC). Comments. The sole state record for this large river species is from the southwestern Lower Peninsula, coincidentally from the same locality as for P. golconda. Within the midwestern U.S., however, this species has been extirpated from Illinois (DeWalt et al. 2005), Indiana (DeWalt & Grubbs 2011) and Ohio (DeWalt et al. 2012b). Collecting efforts are needed to assess if A. ruralis is still present in Michigan.
description: Published as part of Grubbs, Scott A., Pessino, Massimo & DeWalt, R. Edward, 2012, Michigan Plecoptera (Stoneflies): Distribution Patterns And An Updated Species List, pp. 162-173 in Illiesia 8 (18) on page 167, DOI: 10.5281/zenodo.4753235
description: {"references": ["DeWalt, R. E., C. Favret, & D. W. Webb. 2005. Just how imperiled are aquatic insects? A case study of stoneflies (Plecoptera) in Illinois. Annals of the Entomological Society of America, 98: 941 - 950.", "DeWalt, R. E. & S. A. Grubbs. 2011. Updates to the stonefly fauna of Illinois and Indiana. Illiesia, 7: 31 - 50."]}
Helopicus nalatus
Creators: name: Grubbs, Scott A.
name: Pessino, Massimo
name: DeWalt, R. Edward
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Plecoptera
Perlodidae
Helopicus
Helopicus nalatus

description: Helopicus nalatus (Frison) Collection records. USA, Michigan: Washtenaw Co., Huron River, T2 S, R5 E, Sec 2, 42.3338, -83.8093, 29.I.1937, F.E. Lyman, nymph (INHS); same but 4.II.1937, 2 nymphs (INHS), same by 20.II.1937, nymph (INHS); same but 4.IV.1937, 2 nymphs (INHS); same but 9.IV.1937, 3 nymphs (INHS); same but 28.IV.1937, 2 nymphs (INHS); same but 6.V.1937, 2 nymphs (INHS); same but 31.V.1937, 2♂ (INHS); Huron River, 42.3299, -83.8199, 31.V.1937, F.E. Lyman, ♂ (CNC); same but 10.IV.1938, 4 nymphs (CNC). Comments. The only known state records for H. nalatus are from, or near, the type locality in southeastern Michigan. Several independent collecting efforts by the authors in 2006 and 2008 failed to produce fresh adults or nymphs, suggesting this species may no longer inhabit the Huron River. Historical species Capnura manitoba (Claassen) Collection records. USA, Michigan: Montmorency Co., Hunt Creek, 44.8640, - 84.1555, 4.IV.1939, J.W. Leonard, ♂, 2 nymphs (INHS). Comments. This is the only member of this genus that is distributed east of the Great Plains region, known from Manitoba east to Atlantic Canada (Nelson & Baumann 1987, DeWalt et al. 2012a). This historical record still represents one of only two known localities for this species in Michigan. A second locality is listed in Nelson & Baumann (1987) from Ogemaw County. Both counties are located in the northern tier of the Lower Peninsula.
description: Published as part of Grubbs, Scott A., Pessino, Massimo & DeWalt, R. Edward, 2012, Michigan Plecoptera (Stoneflies): Distribution Patterns And An Updated Species List, pp. 162-173 in Illiesia 8 (18) on page 167, DOI: 10.5281/zenodo.4753235
description: {"references": ["Nelson, C. R. & R. W. Baumann. 1987. The winter stonefly genus Capnura (Plecoptera: Capniidae) in North America: systematics, phylogeny, and zoogeography. Transactions of the American Entomological Society, 113: 1 - 28."]}
Form factors in lattice QCD
Creators: name: Brandt, B. B.
name: Capitani, S.
name: Della Morte, M.
name: Djukanovic, D.
name: Gegelia, J.
name: von Hippel, G.
name: Juttner, A.
name: Knippschild, B.
name: Meyer, H. B.
name: Wittig, H.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Lattice simulations of QCD have produced precise estimates for the masses of the lowest-lying hadrons which show excellent agreement with experiment. By contrast, lattice results for the vector and axial vector form factors of the nucleon show significant deviations from their experimental determination. We present results from our ongoing project to compute a variety of form factors with control over all systematic uncertainties. In the case of the pion electromagnetic form factor we employ partially twisted boundary conditions to extract the pion charge radius directly from the linear slope of the form factor near vanishing momentum transfer. In the nucleon sector we focus specifically on the possible contamination from contributions of higher excited states. We argue that summed correlation functions offer the possibility of eliminating this source of systematic error. As an illustration of the method we discuss our results for the axial charge, gA, of the nucleon.
description: 16 pages, 11 figures, presented at Conclusive Symposium, CRC443, "Many-body structure of strongly interacting systems", 23-25 Feb 2011, Mainz, Germany
JIGARSIMON YO'SINLAR SINIFI ASOSIY BELGILARI MARSHANTSIYNING TARAQQIYOT SIKLI
Creators: name: Boyhonova, Hilola
Publisher: name: Zenodo
Year: 2025

description: Ushbu maqolada jigarsimon yoʻsinlar sinfi, ularning asosiy belgilari hamda biologik xususiyatlari yoritilgan. Jigarsimon yoʻsinlarning vegetativ tuzilishi, fotosintez qobiliyati, rizoidlari va koʻpayish usullari haqida batafsil ma’lumot beriladi. Shuningdek, Marshantsiya turining taraqqiyot sikli keng yoritilib, uning gametofit va sporofit avlodlar almashinuvi orqali rivojlanishi tushuntiriladi. Maqolada yoʻsinlarning nam muhitga bogʻliqligi va ularning koʻpayish jarayonlaridagi o‘ziga xos xususiyatlari ilmiy asoslangan holda bayon etilgan. Ushbu tadqiqot jigarsimon yoʻsinlarning tabiatdagi ahamiyatini va ularning evolyutsion ahamiyatini anglashga yordam beradi.
The profitability of inorganic fertilizer use in sorghum production: Evidence from Nigeria
Creators: name: B. T. Omonona
name: L. S. O. Liverpool-Tasie
name: A. Sanou
name: W. Ogunleye
Publisher: name: Gates Open Research
Year: 2019

description: The profitability of inorganic fertilizer use in sorghum production: Evidence from Nigeria
Alloperla banksi Frison 1942
Creators: name: Grubbs, Scott A.
name: Pessino, Massimo
name: DeWalt, R. Edward
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Plecoptera
Chloroperlidae
Alloperla
Alloperla banksi

description: Alloperla banksi Frison Collection records. USA, Michigan: Grand Traverse Co., Boardman River, Mayfield, 44.6371, -85.5182, 28. V.1939, T. H. Frison and H.H. Ross, ♂ (INHS); Boardman River, T26 N, R10 W, Sec. 21, 44.6424, - 85.3332, 11. VI.1947, J.W. Leonard and F.A. Leonard, ♂ (UMMZ). Comments. This uncommon species mainly occupies prior glaciated portions of eastern North America, with scattered records across the northern Great Lakes and St. Lawrence River region plus a disjunct southern distribution in Virginia (Kondratieff and Kirchner 1987, Surdick 2004, DeWalt et al. 2012a). The only Michigan records are from the Boardman River in the northwest Lower Peninsula.
description: Published as part of Grubbs, Scott A., Pessino, Massimo & DeWalt, R. Edward, 2012, Michigan Plecoptera (Stoneflies): Distribution Patterns And An Updated Species List, pp. 162-173 in Illiesia 8 (18) on page 167, DOI: 10.5281/zenodo.4753235
description: {"references": ["Kondratieff, B. C. & R. F. Kirchner. 1987. Additions, taxonomic corrections, and faunal affinities of the stoneflies (Plecoptera) of Virginia, U. S. A. Proceedings of the Entomological Society of Washington, 89: 24 - 30.", "Surdick, R. F. 2004. Chloroperlidae (The Sallflies). Pages 1 - 60. In B. P. Stark & B. J. Armitage, editors. The Stoneflies (Plecoptera) of Eastern North America. Volume II. Chloroperlidae, Perlidae, and Perlodidae (Perlodinae). Bulletin of the Ohio Biological Survey, New Series Volume 14, Columbus, Ohio. 192 pp."]}
Haploperla orpha
Creators: name: Grubbs, Scott A.
name: Pessino, Massimo
name: DeWalt, R. Edward
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Plecoptera
Chloroperlidae
Haploperla
Haploperla orpha

description: Haploperla orpha (Frison) Collection records. USA, Michigan: Marquette Co., Laughing Whitefish River, E of Marquette, 18.VIII.1949, H.H. Ross, ♀ (INHS); Oscoda Co., Au Sable River, Mio, 44.6601, -84.1292, 29.V.1937, T. H. Frison, ♂, ♀ (INHS). Comments. Reported from North Dakota east to Atlantic Canada (Surdick 2004, DeWalt et al. 2012a), the only Michigan localities for this northern species refers to two historical records. Several independent collecting efforts during late May and early June have failed to locate new populations.
description: Published as part of Grubbs, Scott A., Pessino, Massimo & DeWalt, R. Edward, 2012, Michigan Plecoptera (Stoneflies): Distribution Patterns And An Updated Species List, pp. 162-173 in Illiesia 8 (18) on pages 167-168, DOI: 10.5281/zenodo.4753235
description: {"references": ["Surdick, R. F. 2004. Chloroperlidae (The Sallflies). Pages 1 - 60. In B. P. Stark & B. J. Armitage, editors. The Stoneflies (Plecoptera) of Eastern North America. Volume II. Chloroperlidae, Perlidae, and Perlodidae (Perlodinae). Bulletin of the Ohio Biological Survey, New Series Volume 14, Columbus, Ohio. 192 pp."]}
Revisited sunspot data: A new scenario for the onset of the Maunder minimum
Creators: name: Vaquero, J. M.
name: Gallego, M. C.
name: Usoskin, I. G.
name: Kovaltsov, G. A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Maunder Minimum forms an archetype for the Grand minima, and detailed knowledge of its temporal development has important consequences for the solar dynamo theory dealing with long-term solar activity evolution. Here we reconsider the current paradigm of the Grand minimum general scenario by using newly recovered sunspot observations by G. Marcgraf and revising some earlier uncertain data for the period 1636--1642, i.e., one solar cycle before the beginning of the Maunder Minimum. The new and revised data dramatically change the magnitude of the sunspot cycle just before the Maunder Minimum, from 60--70 down to about 20, implying a possibly gradual onset of the Minimum with reduced activity started two cycles before it. This revised scenario of the Maunder Minimum changes, through the paradigm for Grand solar/stellar activity minima, the observational constraint on the solar/stellar dynamo theories focused on long-term studies and occurrence of Grand minima.
description: 8 pages, 2 figures, accepted for publication in ApJ Letters
Resonant structure of low-energy H3+ dissociative recombination
Creators: name: Petrignani, Annemieke
name: Altevogt, Simon
name: Berg, Max H.
name: Bing, Dennis
name: Buhr, Henrik
name: Greene, Chris H.
name: Grieser, Manfred
name: Hoffmann, Jens
name: Jordon-Thaden, Brandon
name: Kokoouline, Viatcheslav
name: Krantz, Claude
name: Kreckel, Holger
name: Mendes, Mario B.
name: Novotny, Oldrich
name: Novotny, Steffen
name: Orlov, Dmitry A.
name: Repnow, Roland
name: Sorg, Tobias
name: Stuetzel, Julia
name: Wolf, Andreas
Publisher: name: arXiv
Year: 2010
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: New high-resolution dissociative recombination rate coefficients of rotationally cool and hot H3+ in the vibrational ground state have been measured with a 22-pole trap setup and a Penning ion source, respectively, at the ion storage ring TSR. The experimental results are compared with theoretical calculations to explore the dependence of the rate coefficient on ion temperature and to study the contributions of different symmetries to probe the rich predicted resonance spectrum. The break-up energy was investigated by fragment imaging to derive internal temperatures of the stored parent ions under differing experimental conditions. A systematic experimental assessment of heating effects is performed which, together with a survey of other recent storage-ring data, suggests that the present rotationally cool rate-coefficient measurement was performed at 380^{+50}_{-130} K and that this is the lowest rotational temperature so far realized in storage-ring rate-coefficient measurements on H3+. This partially supports the theoretical suggestion that higher temperatures than assumed in earlier experiments are the main cause for the large gap between the experimental and theoretical rate coefficients. For the rotationally hot rate-coefficient measurement a temperature of below 3250K is derived. From these higher-temperature results it is found that increasing the rotational ion temperature in the calculations cannot fully close the gap between the theoretical and experimental rate coefficients.
description: 12 pages, 7 figures (11 subfigures), 3 tables
title: Τεχνολογίες δέσμευσης διοξειδίου του άνθρακα από τα καυσαέρια
title: Carbon dioxide capture technologies from industrial emissions
Creators: name: Στουπακης Στεφανος
Publisher: name: Technical University of Crete
Year: 2023

description: Σε μια εποχή που τα ορυκτά καύσιμα παρέχουν πάνω από το 85% της παγκόσμιας ενέργειας, η καύση τους, σε συνδυασμό με άλλες ανθρωπογενείς δραστηριότητες, έχουν φέρει την ανθρωπότητα αντιμέτωπη με μια σημαντική απειλή που γίνεται πιο ορατή από ποτέ. Η απειλή αυτή δεν είναι άλλη από την περιβαλλοντική καταστροφή, η οποία παράλληλα με την συνεχή αύξηση των ενεργειακών αναγκών του ανθρώπου επιτάσσει μια ολιστική στροφή προς μεθόδους αειφόρου ανάπτυξης. Γίνεται λόγος για νέες τεχνολογίες παραγωγής, δέσμευσης και αποθήκευσης ενέργειας που θα βασίζονται πλέον σε ανεξάντλητους πόρους ενώ θα είναι και οικονομικότερες για το περιβάλλον. Η δέσμευση και αποθήκευση του διοξειδίου του άνθρακα, CO2 (το κύριο αέριο του φαινομένου του θερμοκηπίου), θα οδηγήσει στο δρόμο της κάλυψης των αναγκών του ανθρώπου χωρίς αυτό να γίνεται εις βάρος του περιβάλλοντος.
Η παρούσα διπλωματική εργασία εξετάζει καινοτόμες και αποδοτικές τεχνολογίες για τη δέσμευση του διοξειδίου του άνθρακα (CO2). Επιπλέον αναλύει πως οι ανθρωπογενείς δραστηριότητες επηρεάζουν την κλιματική κρίση ενώ ερευνά την επίδραση της πανδημίας COVID-19 σε αυτήν και παρουσιάζει την προσπάθεια αντιμετώπισης της κρίσης, ως Ευρωπαϊκή, αλλά και παγκόσμια πρωτοβουλία. Τέλος, είναι σημαντικό να αναφερθεί πως γίνεται αναφορά τόσο στην μεταφορά όσο και την αποθήκευση του CO2.

description: At a time when fossil fuels provide more than 85% of the world’s energy their combustion in combination with other anthropogenic activities has brought humanity face to face with a major threat that is becoming more urgent than ever. This threat is none other than the infamous environmental disaster, which along with the continuous increase in human energy needs, mandates a holistic shift towards sustainable development methods. An effort is made to develop new-innovative technologies for producing, capturing and storing energy, based on inexhaustible resources which will be more environmentally friendly. Carbon capture and sequestration (Carbon dioxide is the main greenhouse gas), will lead the way to meet human needs without this being against the environment.
The current thesis examines innovative and efficient technologies for carbon dioxide capture. Additionally, it provides an analysis of the way anthropogenic activities affect the climate crisis while it investigates the impact of the pandemic COVID-19 on it. Furthermore, this study focuses on the effort to confront the climate crisis as both a European and Global initiative. Finally, it is important to mention that both transport and storage of CO2 will be discussed as well.
Capnia vernalis Newport 1848
Creators: name: Grubbs, Scott A.
name: Pessino, Massimo
name: DeWalt, R. Edward
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Plecoptera
Capniidae
Capnia
Capnia vernalis

description: Capnia vernalis Newport Collection records. USA, Michigan: Keweenaw Co., Lake Superior, M-26, MDOT Esrey Roadside Park, 5 mi E Eagle Harbor, 47.4688, -88.0577, 27.V.1995, S.A. Grubbs, 3♀ (WKU); Isle Royale, 14.VII.1905, H.A. Gleason (Needham and Claassen 1925). Comments. This is a very broadly-distributed Nearctic species known from Atlantic Canada west to Alaska and south within the Rocky Mountain region to Colorado and New Mexico (Nelson & Baumann 1989, DeWalt et al. 2012a). This is one of two species in Michigan, A. dichroa being the second, which is known only from rocky coastline habitat along Lake Superior.
description: Published as part of Grubbs, Scott A., Pessino, Massimo & DeWalt, R. Edward, 2012, Michigan Plecoptera (Stoneflies): Distribution Patterns And An Updated Species List, pp. 162-173 in Illiesia 8 (18) on page 168, DOI: 10.5281/zenodo.4753235
description: {"references": ["Needham, J. G. & P. W. Claassen. 1925. A monograph of the Plecoptera or stoneflies of America north of Mexico. Thomas Say Foundation Series, Entomological Society of America, 2: 1 - 397.", "Nelson, C. R. & R. W. Baumann. 1989. Systematics and distribution of the winter stonefly genus Capnia (Plecoptera: Capniidae) in North America. Great Basin Naturalist, 49: 289 - 363."]}
Gonadotropin-releasing hormone (GnRH) regulates trophoblast invasion and vascular mimicry : involvement of cell-cell adhesion and proteolysis dynamics.
Creators: name: Bo, Peng
Publisher: name: University of British Columbia
Year: 2014

description: To date, the pro-invasive role of the GnRH-GnRHR system has been demonstrated in several cell types including carcinoma cells. Placental expression of GnRH I, GnRH II, and their mutual receptor (GnRHR) is indicative of a potential mechanism(s) that occurs during the dynamic process of human placenta formation and differentiation, particularly during the development of an invasive phenotype of extravillous trophoblasts (EVTs). However, current studies haven’t completely revealed the role of GnRH in regulating invasive EVT function and the underlying mechanism(s) is not yet well-established. Dynamic reprogramming of cell adhesion and proteolytic machinery is frequently accompanied with cell invasive and angiogenic phenotypes. I hypothesized that GnRH could regulate trophoblast invasion and vascular remodeling via modulation of mesenchymal cadherins and matrix matelloproteinases (MMPs). In these studies, I have found that both GnRH forms could regulate N-cadherin and cadherin-11 expression distinctly by activating of transcription factors TWIST and c-FOS/c-JUN, respectively. Furthermore, I have demonstrated that GnRH I and GnRH II are capable of increasing MMP-2 and MMP-9 expression in EVT cells via up-regulation of the transcription factor RUNX2. Specific inhibition of TWIST/N-cadherin, c-FOS/c-JUN/cadherin-11 and RUNX2/MMP-2/MMP-9 in EVT cells attenuates both basal and GnRH-induced trophoblast invasion. Additionally, both forms of GnRH stimulate matrigel-mediated capillary-like network formation of trophoblastic cells and this phenomenon is also mediated by GnRH induced N-cadherin, cadherin-11, MMP-2 and MMP-9 expression. Collectively, our observations strengthen our hypothesis that GnRH is an important regulator of EVT cell behavior during implantation and placentation. These studies systemically described the underlying molecular mechanisms involved in GnRH induced adhesion molecule and proteolysis reprogramming.
Is it plausible to expect a close encounter of the Earth with a yet undiscovered astronomical object in the next few years?
Creators: name: Iorio, Lorenzo
Publisher: name: arXiv
Year: 2010
Subjects: subject: Space Physics (physics.space-ph)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We analytically and numerically investigate the possibility that a still undiscovered body X, moving along an unbound hyperbolic path from outside the solar system, may penetrate its inner regions in the next few years posing a threat to the Earth. By conservatively using as initial position the lower bounds on the present-day distance dX of X dynamically inferred from the gravitational perturbations induced by it on the orbital motions of the planets of the solar system, both the analyses show that, in order to reach the Earth's orbit in the next 2 yr, X should move at a highly unrealistic speed v, whatever its mass MX is. For example, by assuming for it a solar (MX =M_Sun) or brown dwarf mass (MX = 80mJup), now at not less than dX = 11-6 kau (1 kau=1000 astronomical units), v would be of the order of 6-10% and 3-5% of the speed of light c, respectively. By assuming larger present-day distances for X, on the basis of the lacking of direct observational evidences of electromagnetic origin for it, its speed would be even higher. Instead, the fastest solitary massive objects known so far, like hypervelocity stars (HVSs) and supernova remnants (SRs), travel at v = 0.002-0.005c, having acquired so huge velocities in some of the most violent astrophysical phenomena like interactions with supermassive galactic black holes and supernova explosions. It turns out that the orbit of the Earth would not be macroscopically altered by a close (0.2 au) passage of such an ultrafast body X in the next 2 yr. On the contrary, our planet would be hurled into the space if a Sun-sized body X would encounter it by moving at v/c = 10^-4. On the other hand, this would imply that such a X should be now at just 20-30 au, contrary to all direct observational and indirect dynamical evidences.
description: LaTex2e, 17 pages, 5 figures, no tables
The Six-Point NMHV amplitude in Maximally Supersymmetric Yang-Mills Theory
Creators: name: Kosower, D. A.
name: Roiban, R.
name: Vergu, C.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present an integral representation for the parity-even part of the two-loop six-point planar NMHV amplitude in terms of Feynman integrals which have simple transformation properties under the dual conformal symmetry. We probe the dual conformal properties of the amplitude numerically, subtracting the known infrared divergences. We find that the subtracted amplitude is invariant under dual conformal transformations, confirming existing conjectures through two-loop order. We also discuss the all-loop structure of the six-point NMHV amplitude and give a parametrization whose dual conformal invariant building blocks have a simple physical interpretation.
description: 58 pages, 8 figures
Role of Chameleon Field in Accelerating Universe
Creators: name: Khatua, Piyali Bagchi
name: Debnath, Ujjal
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this work, we have considered a model of the flat FRW universe filled with cold dark matter and Chameleon field where the scale function is taken as, (i) Intermediate Expansion and (ii) Logamediate Expansion. In the both cases we find the expressions of Chameleon field, Chameleon potential, statefinder parameters and slow-roll parameters. Also it has been shown that the potential is always decreases with the chameleon field in both the scenarios. The nature of slow-roll parameters have been shown diagrammatically.
description: 10 pages, 8 figures
Enhanced NMR relaxation of Tomonaga-Luttinger liquids and the magnitude of the carbon hyperfine coupling in single-wall carbon nanotubes
Creators: name: Kiss, A.
name: Palyi, A.
name: Ihara, Y.
name: Wzietek, P.
name: Alloul, H.
name: Simon, P.
name: Zolyomi, V.
name: Koltai, J.
name: Kurti, J.
name: Dora, B.
name: Simon, F.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Recent transport measurements [Churchill \textit{et al.} Nat. Phys. \textbf{5}, 321 (2009)] found a surprisingly large, 2-3 orders of magnitude larger than usual $^{13}$C hyperfine coupling (HFC) in $^{13}$C enriched single-wall carbon nanotubes (SWCNTs). We formulate the theory of the nuclear relaxation time in the framework of the Tomonaga-Luttinger liquid theory to enable the determination of the HFC from recent data by Ihara \textit{et al.} [Ihara \textit{et al.} EPL \textbf{90}, 17004 (2010)]. Though we find that $1/T_1$ is orders of magnitude enhanced with respect to a Fermi-liquid behavior, the HFC has its usual, small value. Then, we reexamine the theoretical description used to extract the HFC from transport experiments and show that similar features could be obtained with HFC-independent system parameters.
description: 5 pages plus 2 supplementary materials
Arcynopteryx dichroa
Creators: name: Grubbs, Scott A.
name: Pessino, Massimo
name: DeWalt, R. Edward
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Plecoptera
Perlodidae
Arcynopteryx
Arcynopteryx dichroa

description: Arcynopteryx dichroa (McLachlan) Collection records. USA, Michigan: Keweenaw Co., Lake Superior, Isle Royale, 47.9163, -89.2090, 5.V.1959, B.A. Mech, ♀, nymph (PURC); same but 15.V.1959, 3♂, ♀ (PURC); Lake Superior, M-26, MDOT Esrey Roadside Park, 5 mi E Eagle Harbor, 47.4688, -88.0577, 27.V.1995, S.A. Grubbs, ♂, 10 nymphs (WKU); same but 9.VI.1996, 3♂, 2♀ (WKU); Lake Superior, 3.5 km W Copper Harbor along MI- 26, 47.4793, -87.9363, 30.V.2010, R.E. DeWalt, M. Pessino, M.M. Brown, and E.W. Hernandez, 10♂, 18♀, 16 nymphs (INHS). Comments. The prior records of A. compacta from Michigan (Grubbs & Bright 2001) now refer to A. dichroa (Teslenko 2012). This only Michigan records for this Holarctic-distributed species are from Lake Superior. The large series that the authors have recently collected have been from boulder habitats along the northern coast of the Keweenaw Peninsula. Rarity status unknown Paracapnia opis (Newman) Collection records. USA, Michigan: Keweenaw Co., Montreal River, 8 km SE Eagle Harbor, 47.4214, - 88.0759, 4.vi.2001, S.A. Grubbs, 5♂, 29♀ (WKU); Marquette Co., Middle Branch Escanaba River, SW Clarksburg at CR-496, 46.4896, -87.8580, 23.III.2011, R. E. DeWalt and M. Pessino, ♂, ♀ (INHS). Comments. This species is known from the northern Great Lakes region east to Atlantic Canada (Stark & Baumann 2004, DeWalt et al. 2012a). First reported from Michigan by Grubbs & Bright (2001) from the Keweenaw County locality noted above, a second population has since been obtained and more are expected with collecting efforts during early-mid spring.
description: Published as part of Grubbs, Scott A., Pessino, Massimo & DeWalt, R. Edward, 2012, Michigan Plecoptera (Stoneflies): Distribution Patterns And An Updated Species List, pp. 162-173 in Illiesia 8 (18) on page 168, DOI: 10.5281/zenodo.4753235
description: {"references": ["Grubbs, S. A. & E. Bright. 2001. Arcynopteryx compacta (Plecoptera: Perlodidae), a Holarctic stonefly confirmed from Lake Superior, with a review and first checklist of the stoneflies of Michigan. Great Lakes Entomologist, 34: 77 - 84.", "Teslenko, V. A. 2012. A taxonomic revision of the genus Arcynopteryx Klapalek, 1904 (Plecoptera, Perlodidae). Zootaxa, 3329: 1 - 18.", "Stark, B. P. & R. W. Baumann. 2004. The winter stonefly genus Paracapnia (Plecoptera: Capniidae). Monographs of the Western North American Naturalist, 2: 96 - 108."]}
Towards Four-Flavour Dynamical Simulations
Creators: name: Herdoiza, Gregorio
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The inclusion of physical effects from sea quarks has been one of the main advances in lattice QCD simulations over the last few years. We report on recent studies with four flavours of dynamical quarks and address some of the potential issues arising in this new setup. First results for physical observables in the light, strange and charm sectors are presented together with the status of dedicated simulations to perform the non-perturbative renormalisation in mass-independent schemes.
description: 15 pages, 14 figures. Plenary talk at the XXVIII International Symposium on Lattice Field Theory, Lattice2010, June 14-19, 2010, Villasimius, Italy
Leuctra rickeri James 1976
Creators: name: Grubbs, Scott A.
name: Pessino, Massimo
name: DeWalt, R. Edward
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Plecoptera
Leuctridae
Leuctra
Leuctra rickeri

description: Leuctra rickeri James Collection records. USA, Michigan: Mackinac Co., 46.0234, -84.9963, 8. VI.1957, W.E. Ricker, ♂ (CNC). Comments. This species is mainly associated with small, upland streams in unglaciated regions (DeWalt et al. 2012a). A single Michigan record is now available, surprisingly from the southern tip of the Upper Peninsula.
description: Published as part of Grubbs, Scott A., Pessino, Massimo & DeWalt, R. Edward, 2012, Michigan Plecoptera (Stoneflies): Distribution Patterns And An Updated Species List, pp. 162-173 in Illiesia 8 (18) on page 168, DOI: 10.5281/zenodo.4753235
The role of interactions between 4N1K and CD47 on integrin activation and integrin-mediated cell adhesion
Creators: name: Leclair, Pascal
Publisher: name: University of British Columbia
Year: 2014

description: Integrins are heterodimeric, cell-surface receptors that play a role in adhesion and chemoresistance. Integrins can be found in one of two states: an inactivated state where integrin-mediated adhesion is not supported, or in an activated state where integrin-mediated adhesion is possible. CD47 is a cell surface receptor that is said to regulate integrin functions by interacting with integrins and regulating their activation state. A thrombospondin C-terminal motif, RFYVVMWK, has been found to be responsible for cell adhesion and was subsequently shown to be specific for CD47. The 10-mer peptide derived from this sequence, 4N1K, has since been used as the prototypic ligand for CD47 and this interaction has been shown to decrease integrin-mediated adhesion and induce cell aggregation and apoptosis. However, the role of the 4N1K/CD47/integrin axis in chemoresistance has not been investigated. My thesis investigated the consequences of CD47 ligation by 4N1K on integrin-mediated functions. I found that the 4N1K peptide induces binding of a variety of antibodies, including non-specific control antibodies, to the surface of cells. In addition, cells that were deficient in CD47 expression were able to bind substrate-immobilized 4N1K as efficiently as their CD47-expressing parental cells. 4N1K was also found to block cell adhesion and induce cell aggregation in a manner that was independent on CD47 expression. These results suggest that 4N1K may produce artifacts in assays that use antibodies as reporters of integrin activation due to its hyper-adhesive nature, resulting in 4N1K binding to a variety of Ig-containing proteins, such as antibodies and cell-surface proteins. In addition, non-specific binding of 4N1K on cell surfaces and homotypic 4N1K interactions appear to be responsible for many of the observed phenotypes on cell adhesion and aggregation, and may explain the reported CD47-independent effects of 4N1K. As such, I propose that the 4N1K peptide not be used as a ligand to assess the role of thrombospondin/ CD47 interactions on cell functions, since the non-specific adherent nature of 4N1K could lead to erroneous interpretations of experimental data.
The HARPS search for southern extra-solar planets: XXVIII. Two giant planets around M0 dwarfs
Creators: name: Forveille, Thierry
name: Bonfils, Xavier
name: Curto, Gaspare Lo
name: Delfosse, Xavier
name: Udry, Stephane
name: Bouchy, Francois
name: Lovis, Christophe
name: Mayor, Michel
name: Moutou, Claire
name: Naef, Dominique
name: Pepe, Francesco
name: Perrier, Christian
name: Queloz, Didier
name: Santos, Nuno
Publisher: name: arXiv
Year: 2010
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Fewer giants planets are found around M dwarfs than around more massive stars, and this dependence of planetary characteristics on the mass of the central star is an important observational diagnostic of planetary formation theories. In part to improve on those statistics, we are monitoring the radial velocities of nearby M dwarfs with the HARPS spectrograph on the ESO 3.6 m telescope. We present here the detection of giant planets around two nearby M0 dwarfs: planets, with minimum masses of respectively 5 Jupiter masses and 1 Saturn mass, orbit around Gl 676A and HIP 12961. The latter is, by over a factor of two, the most massive planet found by radial velocity monitoring of an M dwarf, but its being found around an early M-dwarf is in approximate line with the upper envelope of the planetary vs stellar mass diagram. HIP 12961 ([Fe/H]=-0.07) is slightly more metal-rich than the average solar neighborhood ([Fe/H]=-0.17), and Gl 676A ([Fe/H=0.18) significantly so. The two stars together therefore reinforce the growing trend for giant planets being more frequent around more metal-rich M dwarfs, and the 5~Jupiter mass Gl 676Ab being found around a metal-rich star is consistent with the expectation that the most massive planets preferentially form in disks with large condensate masses.
description: Corrected an error in the labelling of one line in Table 2
Amphinemura nigritta
Creators: name: Grubbs, Scott A.
name: Pessino, Massimo
name: DeWalt, R. Edward
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Plecoptera
Nemouridae
Amphinemura
Amphinemura nigritta

description: Amphinemura nigritta (Provancher) Collection records. USA, Michigan: Chippewa Co., Sault Ste. Marie, 46.4899, -84.3993, 1. VI.1960, Kelton and Whitney, ♂ (CNC). Comments. This is the sole record for this widespread species from Michigan, based on a determination by Dr. William Ricker in 1965. There are, however, several series of collections from northern Michigan (Alger, Keweenaw, and Otsego Cos.) with only females that may be of this species or A. varshava (Ricker). The females of the two species are similar and difficult to separate, and males are needed for verification. We expect A. varshava to be present in Michigan, especially since the type locality is in northern Indiana ca. 60 km south of the Michigan border. We have recent material of A. varshava from both northeastern Wisconsin and northern Indiana.
description: Published as part of Grubbs, Scott A., Pessino, Massimo & DeWalt, R. Edward, 2012, Michigan Plecoptera (Stoneflies): Distribution Patterns And An Updated Species List, pp. 162-173 in Illiesia 8 (18) on page 168, DOI: 10.5281/zenodo.4753235
New efficient estimation and variable selection methods for semiparametric varying-coefficient partially linear models
Creators: name: Kai, Bo
name: Li, Runze
name: Zou, Hui
Publisher: name: arXiv
Year: 2011
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: The complexity of semiparametric models poses new challenges to statistical inference and model selection that frequently arise from real applications. In this work, we propose new estimation and variable selection procedures for the semiparametric varying-coefficient partially linear model. We first study quantile regression estimates for the nonparametric varying-coefficient functions and the parametric regression coefficients. To achieve nice efficiency properties, we further develop a semiparametric composite quantile regression procedure. We establish the asymptotic normality of proposed estimators for both the parametric and nonparametric parts and show that the estimators achieve the best convergence rate. Moreover, we show that the proposed method is much more efficient than the least-squares-based method for many non-normal errors and that it only loses a small amount of efficiency for normal errors. In addition, it is shown that the loss in efficiency is at most 11.1% for estimating varying coefficient functions and is no greater than 13.6% for estimating parametric components. To achieve sparsity with high-dimensional covariates, we propose adaptive penalization methods for variable selection in the semiparametric varying-coefficient partially linear model and prove that the methods possess the oracle property. Extensive Monte Carlo simulation studies are conducted to examine the finite-sample performance of the proposed procedures. Finally, we apply the new methods to analyze the plasma beta-carotene level data.
description: Published in at http://dx.doi.org/10.1214/10-AOS842 the Annals of Statistics (http://www.imstat.org/aos/) by the Institute of Mathematical Statistics (http://www.imstat.org)