cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Effect of Cycling Cadence on Economy at High Power
Creators: name: Ennser, Carol Beatriz
Publisher: name: Old Dominion University
publisherIdentifier: https://ror.org/04zjtrb98
publisherIdentifierScheme: ROR
Year: 2004

description: This study was designed to determine the most economical cadence for cyclists at high power outputs (> 300 W). Six cyclists and two triathletes (age 31.5 ± 8.8 yr, mass 76.9 ± 8.6 kg, VO2max 4.84 ± 0.36 Lmin·1, weekly training 318 ± 118 km) who were capable of riding a bicycle at a speed of 40 kph for 10 min (solo) participated in five tests on a bicycle ergometer. The preliminary test measured subjects' VO2max. After that, subjects completed four trials, each at a predetermined cadence as follows: 60, 80, 100 and 120 rpm. The warm-up started at 100 W, followed by 200 W, 300 W, and 360 W, with each stage lasting 6 min. There was a 2 min recovery period at 100 W following the 200 and 300 W stage. Ventilation (Ve), oxygen consumption (VO2) and carbon dioxide production (VCO2), heart rate (HR) and rating of perceived exertion (RPE) were recorded at the end of each stage. VO2, HR, and RPE were analyzed statistically through repeated measures ANOV A and a curve of best fit was used to determine the most economical cadence for each subject at each power. Analysis of VO2 data showed significant differences between cadences at different powers: at I 00 and 200 W, 60 and 80 rpm elicited significantly lower mean VO2s than did the 100 and 120 rpm. At 300 W, the mean VO2 at 60 rpm was significantly lower than at 120 rpm, and at 80 rpm, it was significantly lower than at 100 and 120 rpm. Analysis of the HR data yielded similar
Polarization dependent, surface plasmon induced photoconductance in gold nanorod arrays
Creators: name: Diefenbach, S.
name: Erhard, N.
name: Schopka, J.
name: Martin, A.
name: Karnetzky, C.
name: Iacopino, D.
name: Holleitner, A. W.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We report on the photoconductance in two-dimensional arrays of gold nanorods which is strongly enhanced at the frequency of the longitudinal surface plasmon of the nanorods. The arrays are formed by a combination of droplet deposition and stamping of gold nanorod solutions on SiO2 substrates. We find that the plasmon induced photoconductance is sensitive to the linear polarization of the exciting photons. We interpret the occurrence of the photoconductance as a bolometric enhancement of the arrays' conductance upon excitation of the longitudinal surface plasmon resonance of the nanorods.
description: 15 pages, 3 figures
Characterisation of the mechanical failure and fracture mechanisms of single grain Y–Ba–Cu–O bulk superconductors
Creators: name: Congreve, Jasmin V J
name: Shi, Yunhua
name: Huang, Kai Yuan
name: Dennis, Anthony R
name: Durrell, John H
name: Cardwell, David A
Publisher: name: Apollo - University of Cambridge Repository
Year: 2019
Subjects: Paper
YBCO
YBCO-Ag
mechanical properties
failure

description: Abstract: The widespread use of melt processed, single grain (RE)–Ba–Cu–O bulk superconductors [(RE)BCO], where RE = Y, Gd or Sm, is limited predominantly by the poor mechanical properties of these inherently brittle, ceramic-like materials. The high density of flaws, such as cracks and voids, within the single grain microstructure leads directly to a low fracture toughness. As a result, the Lorentz forces, generated when these materials carry current in the presence of a large magnetic field, create stresses sufficiently large to cause brittle failure. The addition of Ba–Cu–O (liquid phase) and Ag to the precursor composition prior to melt-growth has been demonstrated to be effective in improving the mechanical properties of these technologically important materials. In this work, we characterise the mechanical failure of single grain YBCO bulk superconductors in terms of a Weibull statistical distribution. In addition, differences in fracture mechanisms have been studied to provide a better understanding of how the provision of additional liquid phase and silver produces YBCO single grains with better resulting mechanical properties and how these can be improved further.
Appearance of a quark matter phase in hybrid stars
Creators: name: Endo, Tomoki
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The appearance of quark matter in the core of hybrid stars is a fundamental issue in such compact stars. The central density of these stars is sufficiently high such that nuclear matter undergoes a further change into other exotic phases that consist of hyperons and quarks. However, the equation of state (EOS) for the high-density matter is still not clear and several recent observations have indicated the limitations of the EOSs; theoretical studies should try to elucidate the EOSs. It is believed that the inner regions of the stars should consist of a mixed hadron-quark phase. We study the mixed hadron-quark phase, taking into account finite-size effects, and find that that the mixed phase should be restricted to a narrower region. Therefore, a quark matter phase should appear in the central region.
description: 4 pages, 5 figures. Proceedings of the Strangeness in Quark Matter 2013, University of Birmingham
Boundary $C^*$-algebras of triangle geometries
Creators: name: Robertson, Guyan
Publisher: name: arXiv
Year: 2013
Subjects: subject: Operator Algebras (math.OA)
subject: Group Theory (math.GR)
subject: K-Theory and Homology (math.KT)
subject: FOS: Mathematics
subject: 20F67, 46L80, 51E24

description: Let $Δ$ be a building of type $\widetilde A_2$ and order $q$, with maximal boundary $Ω$. Let $Γ$ be a group of type preserving automorphisms of $Δ$ which acts regularly on the chambers of $Δ$. Then the crossed product $C^*$-algebra $C(Ω) \rtimes Γ$ is isomorphic to $M_{3(q+1)} \otimes\cl O_{q^2}\otimes\cl O_{q^2}$, where $\cl O_n$ denotes the Cuntz algebra generated by $n$ isometries whose range projections sum to the identity operator.
Pengukuran dan Manajemen Risiko di Pelabuhan
Creators: name: Albab, Muhammad Ulil
Publisher: name: figshare
Year: 2020
Subjects: subject: 150309 Logistics and Supply Chain Management
subject: FOS: Economics and business

description: Evaluasi mengenai analisis risiko dalam pengelolaan pelabuhan sangatlah penting untuk dilakukan. Hal ini mengingat bahwa pergerakan arus barang haruslah mampu dikendalikan dan sesuai dengan standar keamanan yang telah disepakati bersama. Regulasi mengenai implementasi pengukuran kinerja menjadi bagian lain yang berpengaruh secara signifikan bagi pertumbuhan industri kemaritiman.
Chiral Dynamics and S-wave Contributions in Semileptonic B decays
Creators: name: Doring, M.
name: Meißner, Ulf-G.
name: Wang, Wei
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The flavor-changing neutral current process $b\to s l^+l^-$ is beneficial to testing the standard model and hunting for new physics scenarios. In exclusive decay modes like $B\to K^*(892)l^+l^-$, the S-wave effects may not be negligible and thus have to be reliably estimated. Using the scalar form factors derived from dispersion relations in two channels and matched to Chiral Perturbation Theory, we investigate the S-wave contributions in $\bar B^0\to K^- π^+ l^+l^-$, with the $Kπ$ invariant mass lying in the vicinity of the mass of $K^*(892)$, and the $B_s\to K^- K^+ l^+l^-$ with $m_{KK}\sim m_ϕ$. We find that the S-wave will modify differential decay widths by about 10% in the process of $\bar B^0\to K^- π^+ l^+l^-$ and about 5% in $B_s\to K^- K^+ l^+l^-$. A forward-backward asymmetry for the charged kaon in the final state arises from the interference between the S-wave and P-wave contributions. The measurement of this asymmetry offers a new way to determine the variation of the $Kπ$ S-wave phase versus the invariant mass.
description: 26 pages, 10 figures
Proceedings First Workshop on Control Operators and their Semantics
Creators: name: de'Liguoro, Ugo
name: Saurin, Alexis
Publisher: name: arXiv
Year: 2013
Subjects: subject: Logic in Computer Science (cs.LO)
subject: Programming Languages (cs.PL)
subject: FOS: Computer and information sciences
subject: F.3.1, F.3.2, F.3.3

description: The focus of the papers presented in this volume is on the interplay between syntax and semantics in case of languages, namely the central question of what a program means and how it does define the intended procedure. This is a crucial issue especially in the case of control operators, since they are as powerful as potentially obscure, and programs that use them are usually more error-prone than purely declarative ones. The included contributions provide perspectives on the topic of control operators via operational semantics of formal calculi as well as type assignment systems, denotational semantics, game semantics, category theory and logic.
Studying the metallicity gradient in Virgo Ellipticals with E-ELT photometry of resolved stars
Creators: name: Schreiber, Laura
name: Greggio, Laura
name: Falomo, Renato
name: Fantinel, Daniela
name: Uslenghi, Michela
Publisher: name: arXiv
Year: 2013
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The next generation of large aperture ground based telescopes will offer the opportunity to perform accurate stellar photometry in very crowded fields. This future capability will allow one to study in detail the stellar population in distant galaxies. In this paper we explore the effect of photometric errors on the stellar metallicity distribution derived from the color distribution of the Red Giant Branch stars in the central regions of galaxies at the distance of the Virgo cluster. We focus on the analysis of the Color-Magnitude Diagrams at different radii in a typical giant Elliptical galaxy obtained from synthetic data constructed to exemplify observations of the European Extremely Large Telescope. The simulations adopt the specifications of the first light high resolution imager MICADO and the expected performance of the Multi-Conjugate Adaptive Optics Module MAORY. We find that the foreseen photometric accuracy allows us to recover the shape of the metallicity distribution with a resolution $\lesssim 0.4$ dex in the inner regions ($μ_{\rm B}$ = 20.5 mag arcsec$^{-2}$) and $\simeq 0.2$ dex in regions with $μ_{\rm B}$ = 21.6 mag arcsec$^{-2}$, that corresponds to approximately half of the effective radius for a typical giant elliptical in Virgo. At the effective radius ($μ_{\rm B} \simeq 23$ mag arcsec$^{-2}$), the metallicity distribution is recovered with a resolution of $\simeq 0.1$ dex. It will thus be possible to study in detail the metallicity gradient of the stellar population over (almost) the whole extension of galaxies in Virgo. We also evaluate the impact of moderate degradations of the Point Spread Function from the assumed optimal conditions and find similar results, showing that this science case is robust.
description: 16 pages, 21 figures, accepted for publication by MNRAS
Witten's loop in the flipped SU(5) unification
Creators: name: Malinský, Michal
name: Rodríguez, Carolina Arbeláez
name: Kolešová, Helena
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study a very simple, yet potentially realistic renormalizable flipped SU(5) scenario in which the right-handed neutrino masses are generated at very high energies by means of a two-loop diagram similar to that identified by E. Witten in the early 1980's in the SO(10) GUT framework. This mechanism leaves its traces in the baryon number violating signals such as the proton decay, especially in the "clean" channels with a charged lepton and a neutral meson in the final state.
description: 8 pages, 5 figures, prepared for the proceedings of the CETUP* 2013 program (Neutrino Physics and Astrophysics session: July 15 - July 26, 2013), Lead, South Dakota
A method for quantifying the Gamma Ray Burst "bias". Application in the redshift range 0-1.1
Creators: name: Boissier, S.
name: Salvaterra, R.
name: Floc'h, E. Le
name: Basa, S.
name: Buat, V.
name: Prantzos, N.
name: Vergani, S. D.
name: Savaglio, S.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Long Gamma Ray Bursts (LGRBs) are related to the final stages of evolution of massive stars. As such, they should follow the star formation rate (SFR) of galaxies. We can use them to probe for star-forming galaxies (SFGs) in the distant universe following this assumption. The relation between the rate of LGRBs in a given galaxy and its SFR (that we call the LGRB "bias") may be complex, as we have indications that the LGRB hosts are not perfect analogues to the general population of SFGs. In this work, we try to quantify the dependence of the LGRB bias on physical parameters of their host galaxy such as the SFR or the stellar mass. We propose an empirical method based on the comparison of stellar mass functions (and SFR distributions) of LGRB hosts and of SFGs in order to find how the bias depends on the stellar mass or the SFR. By applying this method to a sample of LGRB hosts at redshifts lower than 1.1, where the properties of SFGs are well established, and where the properties of LGRB host galaxies can be deduced from observations (for stellar masses larger than 10**9.25 Msun and SFR larger than 1.8 Msun / yr), we find that the LGRB bias depends on both the stellar mass and SFR. We find that the bias decreases with the SFR, i.e. we see no preference for highly SFGs, once taken into account the larger number of massive stars in galaxies with larger SFR. We do not find any trend with the specific star formation rate (SSFR) but the dynamical range in SSFR in our study is narrow. Although through an indirect method, we relate these trends to a possible decrease of the LGRBs rate / SFR ratio with the metallicity. The method we propose suggests trends that may be useful to constrain models of LGRB progenitors, showing a clear decrease of the LGRB bias with the metallicity. This is promising for the future as the number of LGRB hosts studied will increase.
description: 9 pages, 5 figures, accepted in A&A
Temperature Evolution of Itinerant Ferromagnetism in SrRuO3 Probed by Optical Spectroscopy
Creators: name: Jeong, D. W.
name: Choi, Hong Chul
name: Kim, Choong H.
name: Chang, Seo Hyoung
name: Sohn, C. H.
name: Park, H. J.
name: Kang, T. D.
name: Cho, Deok-Yong
name: Baek, S. H.
name: Eom, C. B.
name: Shim, J. H.
name: Yu, J.
name: Kim, K. W.
name: Moon, S. J.
name: Noh, T. W.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The temperature ($T$) dependence of the optical conductivity spectra $σ(ω)$ of a single crystal SrRuO$_3$ thin film is studied over a $T$ range from 5 to 450 K. We observed significant $T$ dependence of the spectral weights of the charge transfer and interband $d$-$d$ transitions across the ferromagnetic Curie temperature ($T_c$ ~ 150 K). Such $T$ dependence was attributed to the increase in the Ru spin moment, which is consistent with the results of density functional theory calculations. $T$ scans of $σ(Ω, T)$ at fixed frequencies $Ω$ reveal a clear $T^2$ dependence below $T_c$, demonstrating that the Stoner mechanism is involved in the evolution of the electronic structure. In addition, $σ(Ω, T)$ continues to evolve at temperatures above $T_c$, indicating that the local spin moment persists in the paramagnetic state. This suggests that SrRuO$_3$ is an intriguing oxide system with itinerant ferromagnetism.
Inverse of magnetic dipole field using a reversible jump Markov chain Monte Carlo
Creators: name: Luo, X.
name: Foss, C.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: We consider a three-dimensional magnetic field produced by an arbitrary collection of dipoles. Assuming the magnetic vector or its gradient tensor field is measured above the earth surface, the inverse problem is to use the measurement data to find the location, strength, orientation and distribution of the dipoles underneath the surface. We propose a reversible jump Markov chain Monte Carlo (RJ-MCMC) algorithm for both the magnetic vector and its gradient tensor to deal with this trans-dimensional inverse problem where the number of unknowns is one of the unknowns. A special birth-death move strategy is designed to obtain a reasonable rate of acceptance for the RJ-MCMC sampling. Some preliminary results show the strength and challenges of the algorithm in inverting the magnetic measurement data through dipoles. Starting with an arbitrary single dipole, the algorithm automatically produces a cloud of dipoles to reproduce the observed magnetic field, and the true dipole distribution for a bulky object is better predicted than for a thin object. Multi-objects located at different depths remain a very challenging inverse problem.
YOSHLAR O'RTASIDA HUQUQIY FAOLLIKNI OSHIRISHGA QARATILGAN E'TIBOR
Creators: name: Hajiyeva, Zulxumor
Publisher: name: Zenodo
Year: 2023

description: Mazkur maqolada yoshlarning ijtimoiy faolligi va kommunikativligining mohiyatini nazariy va amaliy jihatdan tahlil etish va huquqiy savodxonligini oshirishga qaratilgan. Yoshlarning ijtimoiy faolligini oshirishga nisbatan olimlarning fikrlarini o'rganib, ularning faoliyatida o'zaro munosabatlarni yangi bosqichga olib chiqqan holda ushbu tushunchalar o'rtasidagi bog'liqlikni tahlil etilgan. Ularning bir-biri bilan bog'lovchi alohida jihatlarini ko'rsatib asoslab berilgan.
Big Data & Customer Centricity Pada E-Commerce Logistics
Creators: name: Albab, Muhammad Ulil
Publisher: name: figshare
Year: 2020
Subjects: subject: 150309 Logistics and Supply Chain Management
subject: FOS: Economics and business

description: Pertumbuhan e-commerce Indonesia mencapai 78% per tahun dengan nilai transaksi pada 2018 mencapai Rp 144,1 triliun. Angka ini meningkat hingga lima kali lipat jika dibandingkan dengan kondisi lima tahun lalu [1]. Sejumlah perusahaan rintisan dengan label unicorn antara lain Bukalapak dan Tokopedia menikmati keuntungan pada bisnis digital ini.
Evolutionary Optimization for Decision Making under Uncertainty
Creators: name: Hochreiter, Ronald
Publisher: name: arXiv
Year: 2014
Subjects: subject: Neural and Evolutionary Computing (cs.NE)
subject: FOS: Computer and information sciences

description: Optimizing decision problems under uncertainty can be done using a variety of solution methods. Soft computing and heuristic approaches tend to be powerful for solving such problems. In this overview article, we survey Evolutionary Optimization techniques to solve Stochastic Programming problems - both for the single-stage and multi-stage case.
description: Keynote talk at the MENDEL 2011
Electron-Phonon Coupling and the Metalization of Solid Helium at Terapascal Pressures
Creators: name: Monserrat, Bartomeu
name: Drummond, N. D.
name: Pickard, Chris J.
name: Needs, R. J.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Solid He is studied in the pressure and temperature ranges 1-40 TPa and 0-10,000 K using first-principles methods. Anharmonic vibrational properties are calculated within a self-consistent field framework, including the internal and free energies, density-pressure relation, stress tensor, thermal expansion, and the electron-phonon coupling renormalization of the electronic band gap. We find that an accurate description of electron-phonon coupling requires us to use a non-perturbative approach. The metalization pressure of 32.9 TPa at 0 K is larger than found previously. The vibrational effects are large; for example at P=30 TPa the band gap is increased by 2.8 eV by electron-phonon coupling and a further 0.1 eV by thermal expansion compared to the static value. The implications of the calculated metalization pressure for the cooling of white dwarfs are discussed.
description: 5 pages, 6 figures
Keamanan Transportasi: Potensi Ancaman Dan Strategi Menghadapinya
Creators: name: Albab, Muhammad Ulil
Publisher: name: figshare
Year: 2020
Subjects: subject: 150309 Logistics and Supply Chain Management
subject: FOS: Economics and business

description: Supply chain dipandang sebagai suatu bagian dari kumpulan berbagai bidang lainnya seperti logistics, operation management, production management, dan transportation security. Pembahasan mengenai keamanan transportasi menjadi satu kajian yang menarik karena di dalamnya terdapat berbagai faktor yang seringkali dijumpai di luar dari perkiraan pihak pengambil kebijakan di perusahaan. Diperlukan penanganan yang tepat untuk memastikan bahwa arus perpindahan barang dapat berjalan dengan efektif dan efisien.
FALOWANIE-TRESOWANIE, FALOWANIE-TRESOWANIE, RUCH PANDEMICZNY, STAWIANIE PRZY ŚCIANIE, RAZ-DWA, RAZ-DWA ... FALA TRWA
Creators: name: Rafał Pązik
Publisher: name: Zenodo
Year: 2020
Subjects: SARS-cov2, lockdown, Covid-19, wzrost wykładniczy, manipulacje danymi, pandemia 2020

description: Czy 'covidowy' lockdown działa? Czym są kłamstwa wzrostu wykładniczego? Do jakiego stopnia wierzyć w 'covidowe' dane statystyczne?
Geant4 based simulations for novel neutron detector development
Creators: name: Kittelmann, Thomas
name: Stefanescu, Irina
name: Kanaki, Kalliopi
name: Boin, Mirko
name: Hall-Wilton, Richard
name: Zeitelhack, Karl
Publisher: name: arXiv
Year: 2013
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Experiment (nucl-ex)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: A Geant4-based Python/C++ simulation and coding framework, which has been developed and used in order to aid the R&D efforts for thermal neutron detectors at neutron scattering facilities, is described. Built upon configurable geometry and generator modules, it integrates a general purpose object oriented output file format with meta-data, developed in order to facilitate a faster turn-around time when setting up and analysing simulations. Also discussed are the extensions to Geant4 which have been implemented in order to include the effects of low-energy phenomena such as Bragg diffraction in the polycrystalline support materials of the detector. Finally, an example application of the framework is briefly shown.
description: Proceedings for the 20th International Conference on Computing in High Energy and Nuclear Physics (CHEP)
Glauconema trihymene Thompson 1966
Creators: name: Ma, Hongwei
name: Song, Weibo
name: Warren, Alan
name: Roberts, David
name: Gong, Jun
name: Al-Rasheid, Khaled A. S.
Publisher: name: Zenodo
Year: 2006
Subjects: Biodiversity
Taxonomy
Protozoa
Ciliophora
Oligohymenophorea
Hymenostomatida
Parauronematidae
Glauconema
Glauconema trihymene

description: Glauconema trihymene Thompson, 1966
Since several important features were omitted from the original description, we here supply an improved diagnosis based on the original description and on information obtained during the present study.
 Improved diagnosis of Glauconema trihymene: medium­sized marine Glauconema, trophont 30–36 × 16–24 m and tomite 30–40 × 8–15 m in vivo; cell shape reniform, bilaterally flattened with large apical plate in trophont, long oval shape with small apical plate in tomite. M1 three­rowed in trophont stage, reorganized to two rows and much more distant from M 2 in tomite stage. Scutica with several pairs of basal bodies arranged in short rows. Constantly 17 somatic kineties (SK); silverline of SKn (referring to the last SK counted from the right border of oral field; here equivalent to SK17) connecting with silverline of SK7 or SK8 on dorsal side. One macro­ and one micronucleus. Single contractile vacuole situated subcaudally on dorsal side, with contractile vacuole pore (CVP) at posterior end of SK2.
 Deposited material: silver­impregnated voucher slide has been deposited in the Museum of Natural History, London, U. K. (registration no. 2006:4:3:1), additional voucher specimens remain in the authors’ slide collections in the Laboratory of Protozoology, Ocean University of China.
description: Published as part of Ma, Hongwei, Song, Weibo, Warren, Alan, Roberts, David, Gong, Jun & Al-Rasheid, Khaled A. S., 2006, Redescription of the marine scuticociliate Glauconema trihymene Thompson, 1966 (Protozoa: Ciliophora): life cycle and stomatogenesis, pp. 1-17 in Zootaxa 1296 on page 3, DOI: 10.5281/zenodo.173550
De-Classrooming: Moving Learning Outside the Classroom
Creators: name: Carlin, Andrew P.
Publisher: name: PRISM: Casting New Light on Learning, Theory and Practice
Year: 2020

description: This paper reflects on a teaching problem highlighted as part of a second-year undergraduate module in sociology, taught at a UK based institution of higher education. The specific teaching problem – that of student learning as encountered and revealed in seminars – was nested within other issues; some of which related to the characteristics of the discipline of sociology itself, whilst others, related to more localised issues such as the choice of materials available for students to access and download. Whilst the lecture and course material was fixed, the flexibility of the seminar framework enabled the exploration and implementation of an ad hoc intervention in the form of ‘de-classrooming’. This intervention was utilised and developed to enhance the knowledge base and conceptual understanding of the student cohort in relation to “Everyday Life” sociology. The ‘de-classrooming’ intervention proved to be an efficacious pedagogic device, which facilitated dynamic levels of flexibility and creativity by both teacher and learners. As a pedagogic device, it manifested a number of key benefits: such as aiding the clarification of conceptual confusions. Ultimately, the de-classrooming intervention operated to establish an empowered sense of ownership where knowledge and knowledge-generation were concerned, and afforded students unorthodox opportunities for learning enhancement.
description: PRISM: Casting New Light on Learning, Theory and Practice, Early View
FIELD MEASUREMENT AND SIMULATION VALIDATION OF INCIDENT IRRADIANCE ON VERTICAL FACADE IN TROPICAL COUNTRIES
Creators: name: Azhar Ghazali, Lim Chin Haw
Publisher: name: TuEngr Group
Year: 2020
Subjects: High-rise building
Vertical fa?ade
Building integrated photovoltaic
Solar radiation
Renewable energy
System Advisor Model (SAM)
Solar energy
Solar simulation.

description: International Transaction Journal of Engineering, Management, & Applied Sciences & Technologies, 11, 11, 11A11U: 1-17
Fur glowing under ultraviolet: in situ analysis of porphyrin accumulation in the skin appendages of mammals
Creators: name: Toussaint, Séverine L. D.
name: Ponstein, Jasper
name: Thoury, Mathieu
name: Métivier, Rémi
name: Kalthoff, Daniela C.
name: Habermeyer, Benoît
name: Guilard, Roger
name: Mortensen, Peter
name: Sandberg, Sverre
name: Gueriau, Pierre
name: Amson, Eli
Publisher: name: Humboldt-Universität zu Berlin
Year: 2022
Subjects: subject: in situ analysis
subject: mammal
subject: multispectral imaging
subject: porphyrin
subject: UV photoluminescence
subject: 570 Biologie
subject: 590 Tiere (Zoologie)

description: Examples of photoluminescence (PL) are being reported with increasing frequency in a wide range of organisms from diverse ecosystems. However, the chemical basis of this PL remains poorly defined, and our understanding of its potential ecological function is still superficial. Among mammals, recent analyses have identified free-base porphyrins as the compounds responsible for the reddish ultraviolet-induced photoluminescence (UV-PL) observed in the pelage of springhares and hedgehogs. However, the localization of the pigments within the hair largely remains to be determined. Here, we use photoluminescence multispectral imaging emission and excitation spectroscopy to detect, map, and characterize porphyrinic compounds in skin appendages in situ. We also document new cases of mammalian UV-PL caused by free-base porphyrins in distantly related species. Spatial distribution of the UV-PL is strongly suggestive of an endogenous origin of the porphyrinic compounds. We argue that reddish UV-PL is predominantly observed in crepuscular and nocturnal mammals because porphyrins are photodegradable. Consequently, this phenomenon may not have a specific function in intra- or interspecific communication but rather represents a byproduct of potentially widespread physiological processes.
The role of singular values in entanglement distillation and unambiguous state discrimination
Creators: name: Uzdin, Raam
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: FOS: Physical sciences

description: Unambiguous (non-orthogonal) state discrimination (USD) has a fundamental importance in quantum information and quantum cryptography. Various aspects of two-state and multiple-state USD are studied here using singular value decomposition (SVD) of the evolution operator that describes a given state discriminating system. In particular, we relate the minimal angle between states to the ratio of the minimal and maximal singular values. This is supported by a simple geometrical picture in two-state USD. We apply our result to study what states can undergo entanglement distillation in a given system.
description: Version 2 contains a minor revision in the abstract and a few notational corrections in the text
A Structural Variant Identified in a Bi-specific Fc-Fusion Protein Product: Understanding its Primary and Upper-Level Structures
Creators: name: Bhoraskar, Siddharth
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 310101
subject: Analytical biochemistry
classificationCode: 310107
subject: Glycobiology
classificationCode: 310602
subject: Bioprocessing, bioproduction and bioproducts

description: Commercialization of biologics for the treatment of a wide range of diseases has grown significantly over the years. Recombinant techniques have been employed to design complex proteins, and the intrinsic heterogeneities of these proteins pose a significant challenge for development and manufacturing. Bispecific antibodies and fusion proteins are novel biologics that combine the specificities of two different molecules to simultaneously target two epitopes. Such biologics with ‘two-target’ functionality can interfere with multiple surface receptors and aid in enhanced biotherapeutic efficacy. However, assembling a bispecific molecule from two different parental molecules expressed in the same producer cell may result in various non-functional forms with respect to bispecificity.The modality chosen for this project is a bi-specific Fc fusion protein, which consists of two different extracellular domains (ECDs) fused to a modified Fc of an IgG1 molecule. The ECDs of the molecule are two different receptors, which work together to target transforming growth factor beta (TGF-β) pathway via its superfamily of ligands. Early in development, a structural variant (flow-through or FT) was separated and purified from the desired product (drug substance or DS) using affinity-HPLC; the FT had a significantly lower in vitro activity. Both the conformers (DS and FT) were thenpurified from the production process for further structural characterization. Our initial characterization revealed that the FT has a similar size, but markedly differed in hydrophobicity. An intact high-resolution LC-MS analysis of IdeS subunits revealed subtle, yet profound differences in glycosylation and possibly disulfide bonding. Orthogonal analytical methods including circular dichroism (CD), intrinsic tryptophan fluorescence spectroscopy and hydrophobic interaction chromatography were implemented to further investigate the higher order structure (HOS) of both variants. Results from these techniques have revealed differences in the secondary and HOS of the structural variant, and suggests that the misfolding could be disulfide bond mediated. The results from forced degradation studies conducted at different pH’s and elevated temperature depicted profound differences in the generation of lower molecular weight species between these two variants.The data obtained from these analyses suggested that the FT is a stable, misfolded conformer. Results from this research will provide valuable insight towards monitoring of the structure and folding of biotherapeutics as the constructs and processes of future therapeutic modalities become increasingly more complex.
Investigating the Efficacy of the Indigenous Water Purification Method Using African Spear Plant
Creators: name: Sokate Aylate
Publisher: name: Zenodo
Year: 2018

description: Water supply and environmental engineering primary concern should be making potable water

available to the community at large. Among the many topics addressed in the discipline, water

purification method is of paramount issue to be addressed. Water purification can be undertaken

in more sophisticated method and traditional way.

An indigenous method used by Konso community to purify water using African spear plant was

investigated in this research. Lab scale study was conducted to assess the efficacy of African

spear plant to purify water in terms of water quality parameters such as PH, Turbidity and

Bacteria presence
MUGHAL ARCHITECTURAL STYLE IN COLONIAL BUILDINGS IN MALAYA: THE ROLES OF BRITISH ARCHITECTS
Creators: name: Asif Ali, Ahmad Sanusi Hassan
Publisher: name: TuEngr Group
Year: 2020
Subjects: Mughal architecture
Neoclassical style
Architectural transition
Colonial architects
Architectural history
British Malaya
Malaysian architecture
Indo-Saracenic.

description: International Transaction Journal of Engineering, Management, & Applied Sciences & Technologies, 11, 11, 11A11A: 1-9
On the Optical Role of Randomness for Structured Surfaces
Creators: name: Johansen, Villads Egede
Publisher: name: arXiv
Year: 2013
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: It has been known for years how random height variations of a repeated nano-scale structure can give rise to smooth angular color variations instead of the well-known diffraction pattern experienced if no randomization is present. However, until now there has not been published any papers giving an in-depth mathematical explanation on the mechanisms behind and how to design the randomness for a given application. This paper presents a mathematical framework for analyzing these random variations -- rigorously as well as intuitively.
description: Submitted to Applied Optics
Glauconema Thompson 1966
Creators: name: Ma, Hongwei
name: Song, Weibo
name: Warren, Alan
name: Roberts, David
name: Gong, Jun
name: Al-Rasheid, Khaled A. S.
Publisher: name: Zenodo
Year: 2006
Subjects: Biodiversity
Taxonomy
Protozoa
Ciliophora
Oligohymenophorea
Hymenostomatida
Parauronematidae
Glauconema

description: Genus Glauconema Thompson, 1966
 An improved diagnosis for Glauconema is here supplied based on the original description and on data obtained during the present study.
 Improved diagnosis: Polymorphic Parauronematidae with trophont, tomite and cyst stages; oral area equatorially located: membranelles 1 and 2 (M1, M2) highly developed, closely opposed in trophont while well separated in tomite; membrane 3 (M3) significantly smaller than M1 and M2; paroral membrane positioned mid­way to the right of M2.
 Type species: Glauconema trihymene Thompson, 1966.
description: Published as part of Ma, Hongwei, Song, Weibo, Warren, Alan, Roberts, David, Gong, Jun & Al-Rasheid, Khaled A. S., 2006, Redescription of the marine scuticociliate Glauconema trihymene Thompson, 1966 (Protozoa: Ciliophora): life cycle and stomatogenesis, pp. 1-17 in Zootaxa 1296 on page 3, DOI: 10.5281/zenodo.173550
Warum Planwirtschaft nicht innovativ sein kann
Creators: name: Land, Rainer
Publisher: name: Zenodo
Year: 2010
Subjects: Planwirtschaft Innovation Sozialismus

description: Die zentrale These (erstmalig in Brie, Land, Segert 1988, später Land 1996) lautet, dass der Staatssozialismus wirtschaftlich scheiterte, weil seine Wirtschaftsregulation keinen permanenten endogenen Innovationsprozess hinbekommen konnte – aus prinzipiellen Gründen.
A surface-patterned chip as a strong source of ultra-cold atoms for quantum technologies
Creators: name: Nshii, C. C.
name: Vangeleyn, M.
name: Cotter, J. P.
name: Griffin, P. F.
name: Hinds, E. A.
name: Ironside, C. N.
name: See, P.
name: Sinclair, A. G.
name: Riis, E.
name: Arnold, A. S.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: Laser cooled atoms are central to modern precision measurements. They are also increasingly important as an enabling technology for experimental cavity quantum electrodynamics, quantum information processing and matter wave interferometry. Although significant progress has been made in miniaturising atomic metrological devices, these are limited in accuracy by their use of hot atomic ensembles and buffer gases. Advances have also been made in producing portable apparatus that benefit from the advantages of atoms in the microKelvin regime. However, simplifying atomic cooling and loading using microfabrication technology has proved difficult. In this letter we address this problem, realising an atom chip that enables the integration of laser cooling and trapping into a compact apparatus. Our source delivers ten thousand times more atoms than previous magneto-optical traps with microfabricated optics and, for the first time, can reach sub-Doppler temperatures. Moreover, the same chip design offers a simple way to form stable optical lattices. These features, combined with the simplicity of fabrication and the ease of operation, make these new traps a key advance in the development of cold-atom technology for high-accuracy, portable measurement devices.
description: 5 pages, 5 figures
Quantum frequency conversion of quantum memory compatible photons to telecommunication wavelengths
Creators: name: Fernandez-Gonzalvo, Xavier
name: Corrielli, Giacomo
name: Albrecht, Boris
name: Grimau, Marcelli
name: Cristiani, Matteo
name: de Riedmatten, Hugues
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We report an experiment demonstrating quantum frequency conversion of weak light pulses compatible with atomic quantum memories to telecommunication wavelengths. We use a PPLN nonlinear waveguide to convert weak coherent states at the single photon level with a duration of 30ns from a wavelength of 780nm to 1552nm. We measure a maximal waveguide internal (external) conversion efficiency eta_int = 0.41 (eta_ext = 0.25), and we show that the signal to noise ratio (SNR) is good enough to reduce the input photon number below 1. In addition, we show that the noise generated by the pump beam in the crystal is proportional to the spectral bandwidth of the device, suggesting that narrower filtering could significantly increase the SNR. Finally, we demonstrate that the quantum frequency converter can operate in the quantum regime by converting a time-bin qubit and measuring the qubit fidelity after conversion.
description: 15 pages, 5 figures (To appear in Optics Express)
Fermi surface and electron dispersions of PbTe doped with resonant Tl impurity from KKR-CPA calculations
Creators: name: Wiendlocha, Bartlomiej
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present results of detailed study on the electron dispersions and Fermi surface of lead telluride doped with $2\%$ of thallium, which is resonant impurity in PbTe. Using the KKR--CPA method, Bloch spectral functions (BSFs), which replace the dispersion relations in alloys, are calculated, and BSFs intensity maps over the Brillouin zone (alloy Fermi surface cross-sections) are presented. It is shown, that close to the valence band edge, Tl does not create an isolated impurity band, but due to its resonant character, strongly disturbs the host electronic bands, leading to disappearance of sharp and well defined electronic energy bands. Consequences of this effect on the transport properties are discussed and new qualitative explanation of the improvement in thermoelectric properties of PbTe:Tl is suggested.
description: Accepted in Phys. Rev. B
PROBLEMS IN IELTS AND ITS SOLUTIONS
Creators: name: Mahmudov, Ibrohimjon
Publisher: name: Zenodo
Year: 2023

description: This article discusses the problems and concerns associated with the International English Language Testing System (IELTS), a widely used test for assessing the English language proficiency of non-native speakers. It highlights issues such as inconsistencies in test administration and scoring, limited availability of test dates, concerns about the content and structure of the exam, high costs, and the overemphasis on test scores. The article argues that addressing these issues is crucial to ensure fairness, accuracy, and transparency in evaluating language proficiency.
Vibration multistability and quantum switching for dispersive coupling
Creators: name: Maizelis, Z.
name: Rudner, M.
name: Dykman, M. I.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate a resonantly modulated harmonic mode, dispersively coupled to a nonequilibrium few-level quantum system. We focus on the regime where the relaxation rate of the system greatly exceeds that of the mode, and develop a quantum adiabatic approach for analyzing the dynamics. Semiclassically, the dispersive coupling leads to a mutual tuning of the mode and system into and out of resonance with their modulating fields, leading to multistability. In the important case where the system has two energy levels and is excited near resonance, the compound system can have up to three metastable states. Nonadiabatic quantum fluctuations associated with spontaneous transitions in the few-level system lead to switching between the metastable states. We provide parameter estimates for currently available systems.
Elastic models of the fast traps of carnivorous Dionaea and Aldrovanda
Creators: name: Joyeux, Marc
Publisher: name: arXiv
Year: 2013
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The carnivorous aquatic Waterwheel Plant (Aldrovanda vesiculosa L.) and the closely related terrestrial Venus Flytrap (Dionaea muscipula SOL. EX J. ELLIS) both feature elaborate snap-traps, which shut after reception of an external mechanical stimulus by prey animals. Although Aldrovanda is usually considered as a miniature aquatic Dionaea, the shutting mechanisms of the two plants are actually quite different. The fast shutting of Aldrovanda is indeed based on a simple swelling/shrinking mechanism, while the movement of Dionaea's traps is accelerated by the snap-buckling of the lobes. The purpose of this Report is to describe several key improvements to the elastic models that have recently been introduced to elucidate these movements [Poppinga and Joyeux, Phys. Rev. E 84, 041928 (2011)]. In particular, a precise mechanism for the action of the motor cells of Aldrovanda is proposed, the facts that the opening of the leaves of Dionaea is an irreversible mechanism based on growth and that the strain field is anisotropic and much smaller on the inner than on the outer surface of the leaves during shutting are taken properly into account, and a more accurate formula for calculating mean curvatures is used. The improvements brought to the model are described in detail and the physical consequences of these improvements are discussed.
Pressure induced structural phase transition in solid oxidizer KClO$_3$: A first-principles study
Creators: name: Yedukondalu, N.
name: Ghule, Vikas D.
name: Vaitheeswaran, G.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: High pressure behavior of potassium chlorate (KClO$_3$) has been investigated from 0-10 GPa by means of first principles density functional theory (DFT) calculations. The calculated ground state parameters, transition pressure and phonon frequencies using semiempirical dispersion correction scheme are in excellent agreement with experiment. It is found that KClO$_3$ undergoes a pressure induced first order phase transition with an associated volume collapse of 6.4$\%$ from monoclinic (\emph{P2$_1$/m}) $\rightarrow$ rhombohedral (\emph{R3m}) structure at 2.26 GPa, which is in good accord with experimental observation. However, the transition pressure was found to underestimate (0.11 GPa) and overestimate (3.57 GPa) using LDA and GGA functionals, respectively. Mechanical stability of both the phases are explained from the calculated single crystal elastic constants. In addition, the zone center phonon frequencies have been calculated using density functional perturbation theory at ambient as well as at high pressure and the lattice modes are found to soften under pressure between 0.6 to 1.2 GPa. The present study reveals that the observed structural phase transition leads to changes in the decomposition mechanism of KClO$_3$ which corroborates with the experimental results.
description: 6 Figures
Patterned deposition at moving contact lines
Creators: name: Thiele, Uwe
Publisher: name: arXiv
Year: 2013
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: When a simple or complex liquid recedes from a smooth solid substrate it often leaves a homogeneous or structured deposit behind. In the case of a receding non-volatile pure liquid the deposit might be a liquid film or an arrangement of droplets depending on the receding speed of the meniscus and the wetting properties of the system. For complex liquids with volatile components as, e.g., polymer solutions and particle or surfactant suspensions, the deposit might be a homogeneous or structured layer of solute - with structures ranging from line patterns that can be orthogonal or parallel to the receding contact line via hexagonal or square arrangements of drops to complicated hierarchical structures. We review a number of recent experiments and modelling approaches with a particular focus on mesoscopic hydrodynamic long-wave models. The conclusion highlights open question and speculates about future developments.