cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Becoming Sikh : Sikh youth identities and the multicultural imaginary
Creators: name: Heer, Kalbir
Publisher: name: University of British Columbia
Year: 2018

description: This dissertation explores the lives of second and third generation Sikh youth in the Greater Vancouver area in relation to the ways they think about their identities. As racialized youth growing up in a major Canadian urban center, being situated within an array of various ethnic, racial, religious, and gender differences plays an important role in how participants recognize what it means to be Sikh, and the potential to become differently. Particularly relevant in this study is an investigation into the ways competing discourses of multiculturalism both facilitates the way participants “do” their identities, and also shapes the ways Sikh youth come to (mis)recognize the multicultural “others”. Through small group and individual interviews, youth theorizing on the repetition, regulation and re-signification of identity categories is explored. Relying significantly on Judith Butler's theory of performativity, and Michel Foucault’s discussions of discourse, knowledge, and power, multiculturalism is taken up as an important societal discourse which requires racialized youth to perform their identities in everyday multicultural context such as schools. In other words, multiculturalism is theorized beyond policy and curriculum debates to investigate how youth “do multiculturalism” in different contexts through various embodied practices which constitute and regulate claims to a Sikh identity. Based on an analysis of interview transcripts with 25 self-identified Sikh youth (ages 13-25), it is argued that an important consequence of living in a “multicultural” society as understood by participants is the recognition of self and others through three frames of recognition. These “multicultural frames of recognition” include the ways Sikh youth come to recognize a discursive whiteness, discourses about racialized others, and discourses about other Sikh communities. It is argued that subjection through the discourses which structure these three “multicultural frames of recognition” contribute to participants’ understanding of the diverse racial, ethnic, religious, and gender identities in modern day Vancouver, while foreshadowing the constitution and constraints of the identification process for Sikh youth within the multicultural imaginary.
Magnetic ordering effects in a Mn-modulation-doped high mobility two-dimensional hole system
Creators: name: Wurstbauer, Ursula
name: Wegscheider, Werner
Publisher: name: Universität Regensburg
Year: 2009
Subjects: subject: doping profiles, effective mass, ferromagnetic-paramagnetic transitions, Hall effect, hole mobility, III-V semiconductors, indium compounds, magnetic hysteresis, magnetic moments, manganese, molecular beam epitaxial growth, semiconductor doping, semiconductor quantum wells, semimagnetic semiconductors, Shubnikov-de Haas effect, weak localisation
subject: 530 Physik
subject: 71.18.+y; 71.55.Eq; 72.15.Rn; 73.43.Qt

description: We have studied the magnetotransport properties of a manganese (Mn)-modulation-doped high mobility two-dimensional hole system in a strained InAs quantum well (QW) structure. At precisely T=600 mK a phase transition from paramagnetism to ferromagnetism can be observed by a change of the low-field magnetotransport behavior and hysteresis. In the magnetically ordered phase a superposition of positive magnetoresistance and weak antilocalization was detected in the longitudinal resistance Rxx and in the Hall resistance Rxy a superposition of normal, anomalous, and planar Hall effects demonstrating spontaneous magnetization in the QW plane was detected. From extensive analysis of the temperature and magnetic field dependence of the Shubnikov–de Haas oscillations we deduce the effective mass, transport, and quantum-scattering times. The latter indicates presence of small-range scattering potential. From corrections to the Drude conductivity we determine the impurity interaction time, which is significantly reduced in the ferromagnetic phase indicating interaction of the two-dimensional free holes' spin with the localized magnetic moments of 5/2 from Mn ions.
The Large Magellanic Cloud: A power spectral analysis of Spitzer images
Creators: name: Puerari, Ivanio
name: Block, David L.
name: Elmegreen, Bruce G.
name: Bournaud, Frederic
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present a power spectral analysis of Spitzer images of the Large Magellanic Cloud. The power spectra of the FIR emission show two different power laws. At larger scales (kpc) the slope is ~ -1.6, while at smaller ones (tens to few hundreds of parsecs) the slope is steeper, with a value ~ -2.9. The break occurs at a scale around 100-200 pc. We interpret this break as the scale height of the dust disk of the LMC. We perform high resolution simulations with and without stellar feedback. Our AMR hydrodynamic simulations of model galaxies using the LMC mass and rotation curve, confirm that they have similar two-component power-laws for projected density and that the break does indeed occur at the disk thickness. Power spectral analysis of velocities betrays a single power law for in-plane components. The vertical component of the velocity shows a flat behavior for large structures and a power law similar to the in-plane velocities at small scales. The motions are highly anisotropic at large scales, with in-plane velocities being much more important than vertical ones. In contrast, at small scales, the motions become more isotropic.
description: 8 pages, 4 figures, talk presented at "Galaxies and their Masks", celebrating Ken Freeman's 70-th birthday, Sossusvlei, Namibia, April 2010. To be published by Springer, New York, editors D.L. Block, K.C. Freeman, & I. Puerari
Fixed-bed column adsorption modeling using Zr biocomposites for fluoride removal
Creators: name: Robledo-Peralta, Adriana
name: Valle-Cervantes, Sergio
name: Torres-Castañón, Luis A.
name: Reynoso-Cuevas, Liliana
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biochemistry
subject: Space Science
subject: Cell Biology
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Science Policy

description: This research involved conducting continuous adsorption experiments to assess fluoride elimination from drinking water achieved by utilizing biocomposites created from the peels of oranges and apples, which were impregnated with zirconium (Zr), to form BOP-Zr and BAP-Zr, respectively. The findings from the experimental data indicate that BOP-Zr and BAP-Zr are effective biosorbents with a solid ability to remove fluoride selectively. Additionally, these biosorbents were found to be stable, as they do not release Zr into the treated water. Notably, these environmentally friendly biosorbents are derived from renewable sources and enhance the value of waste materials. The study employed various empirical models, including Bohart-Adamas, Thomas, Yoon-Nelson, BDST, Clark, Yan, and Woolborska, to elucidate the mechanisms and crucial parameters involved in fluoride adsorption within packed bed columns. The Yan model demonstrated the highest correlation among these models, indicating a chemical adsorption process with kinetics following a pseudo-second-order pattern. BOP-Zr and BAP-Zr exhibited a maximum adsorption capacity of 59.3 and 47.5 mg/g, respectively, under a flow rate of 4 mL/min and an inlet fluoride concentration of 25 mg/L. The analysis of mass transfer coefficients revealed that the primary step governing the adsorption procedure was diffusion through pores. Consequently, the study conclusively establishes that BOP-Zr and BAP-Zr biocomposites, originating from lignocellulosic biomass remains, present a practical and competitive choice for eliminating fluoride from water. These materials surpass waste materials in performance and rival more expensive options in efficiency and performance.
General Relativistic Magnetohydrodynamic and Monte Carlo Modeling of Sagittarius A*
Creators: name: Hilburn, Guy
name: Liang, Edison
name: Liu, Siming
name: Li, Hui
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present results of models of the physical space and parameters of the accretion disk of Sagittarius A*, as well as simulations of its emergent spectrum. This begins with HARM, a 2D general relativistic magneto-hydrodynamic (GRMHD) model, specifically set up to evolve the space around a black hole. Data from HARM are then fed into a 2D Monte-Carlo (MC) code which generates and tracks emitted photons, allowing for absorption and scattering before they escape the volume.
description: Accepted for publication in Astrophysics & Space Science, originally presented at HEDLA 2010
Tuning of structure inversion asymmetry by the delta-doping position in (001)-grown GaAs quantum wells
Creators: name: Lechner, Vera
name: Golub, Leonid
name: Olbrich, Peter
name: Stachel, Sebastian
name: Schuh, Dieter
name: Wegscheider, Werner
name: Belkov, Vassilij
name: Ganichev, Sergey
Publisher: name: Universität Regensburg
Year: 2009
Subjects: subject: 530 Physik

description: Both structure and bulk inversion asymmetry in modulation-doped (001)-grown GaAs quantum wells were investigated employing the magnetic field induced photogalvanic effect.We demonstrate that the structure inversion asymmetry (SIA) can be accurately tailored by the delta-doping layer position. Symmetrically doped structures exhibit a substantial SIA due to impurity segregation during the growth process. Tuning the SIA by the delta-doping position, we can grow samples with almost equal degrees of structure and bulk inversion asymmetry.
Leveraging Unlabelled Data in Multiple-Instance Learning Problems for Improved Detection of Parkinsonian Tremor in Free-Living Conditions
Creators: name: Papadopoulos, Alexandros
name: Delopoulos, Anastasios
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Data-driven approaches for remote detection of Parkinson's Disease and its motor symptoms have proliferated in recent years, owing to the potential clinical benefits of early diagnosis. The holy grail of such approaches is the free-living scenario, in which data are collected continuously and unobtrusively during every day life. However, obtaining fine-grained ground-truth and remaining unobtrusive is a contradiction and therefore, the problem is usually addressed via multiple-instance learning. Yet for large scale studies, obtaining even the necessary coarse ground-truth is not trivial, as a complete neurological evaluation is required. In contrast, large scale collection of data without any ground-truth is much easier. Nevertheless, utilizing unlabelled data in a multiple-instance setting is not straightforward, as the topic has received very little research attention. Here we try to fill this gap by introducing a new method for combining semi-supervised with multiple-instance learning. Our approach builds on the Virtual Adversarial Training principle, a state-of-the-art approach for regular semi-supervised learning, which we adapt and modify appropriately for the multiple-instance setting. We first establish the validity of the proposed approach through proof-of-concept experiments on synthetic problems generated from two well-known benchmark datasets. We then move on to the actual task of detecting PD tremor from hand acceleration signals collected in-the-wild, but in the presence of additional completely unlabelled data. We show that by leveraging the unlabelled data of 454 subjects we can achieve large performance gains (up to 9% increase in F1-score) in per-subject tremor detection for a cohort of 45 subjects with known tremor ground-truth.
description: A. Papadopoulos and A. Delopoulos, "Leveraging Unlabelled Data in Multiple-Instance Learning Problems for Improved Detection of Parkinsonian Tremor in Free-Living Conditions," in IEEE Journal of Biomedical and Health Informatics, doi: 10.1109/JBHI.2023.3267095
Optimization of CBCT image quality in implant dentistry
Creators: name: Alawaji, Yasmine
Publisher: name: University of British Columbia
Year: 2018

description: Objectives: This study was conducted to optimize the CBCT image quality in implant dentistry using both clinical and quantitative image quality evaluation with measurement of the radiation dose. Materials and methods: A natural bone human skull phantom and an image quality phantom were used to evaluate the images produced after changing the exposure parameters (kVp and mA). A 10x5 cm² FOV was selected for average adult. Five scans were taken with varying kVp (70 kVp, 75 kVp, 80 kVp, 85 kVp, 90 kVp) first at fixed 4 mA. After assessment of the scans and selecting the best kVp, nine scans were taken with varying mA (2 mA, 2.5 mA, 3.2 mA, 4 mA, 5 mA, 6.3 mA, 10 mA, 12 mA) and the optimal kVp was fixed. A dosimetry index phantom was used to measure the absorbed dose for each scan setting. Quantitative image quality was assessed for noise, uniformity, artifact added value, contrast-to-noise ratio, spatial resolution and geometrical distortion. A clinical assessment of implant related anatomical landmarks was done in random order by two blinded examiners. Results: The absorbed dose was reduced with reduction of exposure settings. The quantitative image quality values were acceptable at variable exposure settings. The anatomical landmarks of the maxilla had good quality at all different kVp settings. To produce good image quality, the mandibular landmarks demanded higher exposure parameters than maxilla. Conclusion: Changing the exposure parameters does not necessarily produce higher image quality outcomes but does affect the radiation dose to the patient. The image quality could be optimized for implant treatment planning at lower exposure settings and dose than the default settings.
Effect of ferric salt addition on UV/electro-chlorine advanced oxidation process
Creators: name: Kishimoto, Naoyuki
name: Nakamura, Kenjiro
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Biochemistry
subject: Space Science
subject: Molecular Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified

description: This study discussed the effect of ferric salt addition on UV/electro-chlorine advanced oxidation process using a train of electrolytic and UV flow cells with an ozone-free low-pressure mercury vapour lamp (total irradiance:0.60 W at 254 nm). Ferric salt addition enhanced 1,4-dioxane degradation at an electrolytic current of 0.100 A. By contrast, an inhibitory effect of ferric salt addition was observed at a current of 0.500 A. The enhanced accumulation of free chlorine at a current of 0.500 A directly decreased the 1,4-dioxane degradation rate by scavenging reactive radicals like HO˙ and Cl˙. However, at an electrolytic current of 0.100 A, UV irradiance was relatively excessive for electrochemical chlorine production. The excess UV energy enhanced the photoreduction of FeOH2+, followed by the Fenton-type reaction of Fe2+ and HOCl, which produced HO˙ and consumed free chlorine. As a result, the free chlorine concentration decreased, and the reaction efficiency between the reactive radicals and 1,4-dioxane improved. Thus, the addition of ferric salt to a UV/electro-chlorine system is recommended when the UV irradiance in the system is excessive compared to the electrochemical chlorine supply.
CAPACITY-BUILDING NEEDS IN VOCATIONAL AND TECHNICAL EDUCATION TRAINING PROGRAMMES THROUGH CURRICULUM MODIFICATION FOR SPECIAL NEEDS LEARNERS.pdf
Creators: name: Aglazor, Genevieve
Publisher: name: figshare
Year: 2022
Subjects: Education

description: This study sought to identify (the capacity building Needs of vocational and TechnicalEducation teachers curriculum modification for special needs learners. Survey researchdesign was adopted, with three research questions to guide the study. Eighty-oneuniversity lecturers from four institutions participated in the study. The instrument fordata collection was a 31 curriculum modification skill-items questionnaire (CMSIQ)which was developed by the researcher with two components of “Needed” andperformance” with four response options each. The copies of the instruments retrievedwere analyzed using mean and Improvement Needs Index (INI) to answer the threeresearch questions. The findings of the study revealed that Vocational and Technicalteachers needed capacity-building in 28 out of the 31 curriculum modification skillsfor teaching special needs learners. Finally, it was recommended that the identifiedmodification skills where the vocational teachers needed capacity- building be usedto upgrade their skills to enable them establish, select and modify existing materialsto improve academic performance of their students
Η Φλόγα που ενώνει, αναστρέψιμη κατασκευή στον υπαίθριο χώρο του Pompidou στο Παρίσι για τη φιλοξενία περιοδικής έκθεσης Oλυμπιακών Aγώνων
Creators: name: Τζιάτας, Ιούλιος Ιωάννη
Publisher: name: Aristotle University of Thessaloniki
Year: 2023
Subjects: Πομπιντού
Ολυμπιακοί Αγώνες 2024
Αναστρέψιμη κατασκευή
Pompidou
Olympics Games 2024
Reversible construction

description: Η παρούσα διπλωματική εργασία προτείνει την κατασκευή μιας αναστρέψιμης παρέμβασης για τους επόμενους Ολυμπιακούς αγώνες στο Παρίσι το 2024. Τοποθετείται στον πιο πολυσύχναστο χώρο πολιτισμού του Παρισιού, στην πλατεία του CENTER DE POMPIDOY. Προάγοντας τις αξίες του Ολυμπισμού, θέλει να περάσει ένα σαφές αντιπολεμικό μήνυμα. Αυτό αποσκοπεί να το πετύχει, τόσο διαμέσου της έκθεσης που θα οργανώνεται στο εσωτερικό του, όσο και με τη μορφή του ως ένα installation.
description: The aim of the present thesis proposes the construction of a reversible intervention for the next Olympic games in Paris in 2024. It is placed in the busiest cultural area of Paris, in the square of the CENTER DE POMPIDOY. By promoting the values of Olympism, he wants to send a clear anti-war message. This it aims to achieve, both through the exhibition that will be organized inside it, and in its form as an installation.
description: Σε συνεργασία με: Παιδαγωγικό Δημοτικής Εκπαίδευσης (Πανεπιστήμιο Δυτικής Μακεδονίας)
Robust Adaptive Beamforming Based on Steering Vector Estimation via Semidefinite Programming Relaxation
Creators: name: Khabbazibasmenj, Arash
name: Vorobyov, Sergiy A.
name: Hassanien, Aboulnasr
Publisher: name: arXiv
Year: 2010
Subjects: subject: Information Theory (cs.IT)
subject: Optimization and Control (math.OC)
subject: Applications (stat.AP)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: We develop a new approach to robust adaptive beamforming in the presence of signal steering vector errors. Since the signal steering vector is known imprecisely, its presumed (prior) value is used to find a more accurate estimate of the actual steering vector, which then is used for obtaining the optimal beamforming weight vector. The objective for finding such an estimate of the actual signal steering vector is the maximization of the beamformer output power, while the constraints are the normalization condition and the requirement that the estimate of the steering vector does not converge to an interference steering vector. Our objective and constraints are free of any design parameters of non-unique choice. The resulting optimization problem is a non-convex quadratically constrained quadratic program, which is NP hard in general. However, for our problem we show that an efficient solution can be found using the semi-definite relaxation technique. Moreover, the strong duality holds for the proposed problem and can also be used for finding the optimal solution efficiently and at low complexity. In some special cases, the solution can be even found in closed-form. Our simulation results demonstrate the superiority of the proposed method over other previously developed robust adaptive beamforming methods for several frequently encountered types of signal steering vector errors.
description: 30 pages, 7 figures, Submitted to the IEEE Trans. Signal Processing in July 2010
Anisotropic tunneling magnetoresistance and tunneling anisotropic magnetoresistance: Spin-orbit coupling in magnetic tunnel junctions
Creators: name: Matos-Abiague, Alex
name: Fabian, Jaroslav
Publisher: name: Universität Regensburg
Year: 2009
Subjects: subject: Fermi surface, ferromagnetic materials, gallium arsenide, III-V semiconductors, iron, magnetisation, spin-orbit interactions, tunnelling magnetoresistance
subject: 530 Physik
subject: 73.43.Jn; 72.25.Dc; 73.43.Qt

description: The effects of the spin-orbit coupling (SOC) on the tunneling magnetoresistance of ferromagnet/semiconductor/normal-metal tunnel junctions are investigated. Analytical expressions for the tunneling anisotropic magnetoresistance (TAMR) are derived within an approximation in which the dependence of the magnetoresistance on the magnetization orientation in the ferromagnet originates from the interference between Bychkov-Rashba and Dresselhaus SOCs that appear at junction interfaces and in the tunneling region. We also investigate the TAMR effect in ferromagnet/semiconductor/ferromagnet tunnel junctions. The conventional tunneling magnetoresistance (TMR) measures the difference between the magnetoresistance in parallel and antiparallel configurations. We show that in ferromagnet/semiconductor/ferromagnet heterostructures, because of the SOC effects, the conventional TMR becomes anisotropic—we refer to it as the anisotropic tunneling magnetoresistance (ATMR). The ATMR describes the changes in the TMR when the axis along which the parallel and antiparallel configurations are defined is rotated with respect to a crystallographic reference axis. Within the proposed model, depending on the magnetization directions in the ferromagnets, the interplay of Bychkov-Rashba and Dresselhaus SOCs produces differences between the rates of transmitted and reflected spins at the ferromagnet/semiconductor interfaces, which results in an anisotropic local density of states at the Fermi surface and in the TAMR and ATMR effects. Model calculations for Fe/GaAs/Fe tunnel junctions are presented. Finally, based on rather general symmetry considerations, we deduce the form of the magnetoresistance dependence on the absolute orientations of the magnetizations in the ferromagnets.
Effect of p-d hybridization and structural distortion on the electronic properties of AgAlM2 (M = S, Se, Te) chalcopyrite semiconductors
Creators: name: Mishra, S.
name: Ganguli, B.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We have carried out ab-initio calculation and study of structural and electronic properties of AgAlM2 (M = S, Se, Te) chalcopyrite semiconductors using Density Functional Theory (DFT) based self consistent Tight binding Linear Muffin Tin orbital (TB-LMTO) method. Calculated equlibrium values of lattice constants, anion displacement parameter (u), tetragonal distortion (η = c/2a) and bond lengths have good agreement with experimental values. Our study suggests these semiconductors to be direct band gap semiconductors with band gaps 1.98 eV, 1.59 eV and 1.36 eV respectively. These are in good agreement with experimental value within the limitation of local density approximation (LDA). Our explicit study of the effects of anion displacement and p-d hybridization show that band gap increases by 9.8%, 8.2% and 5.1% respectively for AgAlM2 (M = S, Se, Te) due to former effect and decreases by 51%, 47% and 42% respectively due to later effect.
description: 15 pages, 17 figures, This article has been communicated to Solid State Communications
title: Universität Kassel, Vorlesungsverzeichnis WiSe 2020 / 2021
Creators: name: (:Unkn) Unknown
Publisher: name: Universität Kassel
Year: 2020
Subjects: subject: 350
subject: 370
subject: Universität Kassel
subject: Vorlesungsverzeichnis

description: PDF zum Online-Vorlesungsverzeichnis
Evaluation of resistance risk in soil due to antibiotics during application of penicillin V fermentation residue
Creators: name: Gong, Picheng
name: Liu, Huiling
name: Yu, Tingting
name: Jiang, Cuishuang
name: Gou, Enfang
name: Guan, Jingze
name: Chen, Huayuan
name: Kang, Haoze
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified
subject: Virology

description: The soil application of hydrothermally treated penicillin V fermentation residue (PFR) is attractive but challenged, due to the concern of the resistance risk in soil related to residual antibiotics. In this study, a lab-scale incubation experiment was conducted to investigate the influence of penicillin V on antibiotic resistance genes (ARGs) in PFR-amended soil via qPCR. The introduced penicillin V in soil could not be persistent, and its degradation occurred mainly within 2 days. The higher number of soil ARGs was detected under 108 mg/kg of penicillin V than lower contents (≤54 mg/kg). Additionally, the relative abundance of ARGs was higher in soil spiked with penicillin V than that in blank soil, and the great increase in the relative abundance of soil ARGs occurred earlier under 108 mg/kg of penicillin V than lower contents. The horizontal gene transfer might contribute to the shift of ARGs in PFR-amended soil. The results indicated that the residual penicillin V could cause the proliferation of soil ARGs and should be completely removed by hydrothermal treatment before soil application. The results of this study provide a comprehensive understanding of the resistance risk posed by penicillin V during the application of hydrothermally pretreated PFR.
Αναβάθμιση & προώθηση τουριστικού προϊόντος στα πλαίσια Στρατηγικού Πλάνου Μάρκετινγκ για την Π.Ε. Χαλκιδικής
Creators: name: Ηλιάδης, Σωκράτης Ηλία
Publisher: name: Aristotle University of Thessaloniki
Year: 2023
Subjects: Μάρκετινγκ Προορισμού
Προώθηση Τουριστικού προϊόντος
Οργανισμός Προώθησης και Διαχείρισης Προορισμού
Destination Marketing
Promotion and Upgrading of tourist product
Destination Management Organization

description: Η παρούσα εργασία επικεντρώθηκε στην μελέτη του αντικείμενου της αναβάθμισης & προώθησης του τουριστικού προϊόντος της Χαλκιδικής και τις επιμέρους στρατηγικές που απαιτούνται, στα πλαίσια ενός στρατηγικού σχεδίου τουριστικού μάρκετινγκ. Κύρια στοιχεία της έρευνας αποτέλεσαν οι δράσεις Μάρκετινγκ, εάν συμβαδίζουν με τους στόχους και της βιώσιμης τουριστικής ανάπτυξης και η διερεύνηση προθέσεων για την δημιουργία Οργανισμού διαχείρισης και προώθησης προορισμού και παρατηρητήριο βιώσιμου τουρισμού. Γίνεται περιγραφή του τουριστικού προφίλ της Χαλκιδικής και παρουσιάζονται οι δράσεις των φορέων της. Ακολουθεί η αξιολόγηση του προορισμού και των τουριστικών του προϊόντων και αναλύονται οι σύγχρονες τάσεις. Παρουσιάζονται τα αποτελέσματα πρωτογενούς ποιοτικής έρευνας που διενεργήθηκε με την μέθοδο των συνεντεύξεων σε πέντε εμπλεκόμενους δημόσιους και ιδιωτικούς φορείς της περιοχής. Οι συμμετέχοντες στην έρευνα φορείς επιβεβαίωσαν την ανάγκη δημιουργίας ενός κεντρικού φορέα διαχείρισης και προώθησης του τουρισμού στην Χαλκιδική προκειμένου να βελτιωθεί η εικόνα και η τουριστική της θέση. Τέλος, αναλύεται το Σχέδιο Μάρκετινγκ και παρουσιάζονται οι προτάσεις για την βέλτιστη αναβάθμιση των τουριστικών προϊόντων της Χαλκιδικής.
description: This paper focused on the study of upgrading and promoting the Halkidiki tourism product, and the individual strategies required in the context of a strategic tourism marketing plan. The main elements of the research were the marketing actions, whether they are in line with the objectives and sustainable tourism development and the investigation of the intentions for the creation of a destination management and promotion organization and a sustainable tourism observatory. The tourism profile of Ηalkidiki is described and the actions of its stakeholders are presented. The destination and its tourism products are evaluated, and current trends are analyzed. The results of primary qualitative research conducted through interviews with five public and private stakeholders in the region are presented. The respondents confirmed the need for the creation of a central tourism management and promotion of tourism in Halkidiki in order to improve its image and tourism position. Finally, the Marketing Plan is analyzed and the proposals for the optimal upgrade of the tourist products of Halkidiki are presented.
Analyzing drop coalescence in microfluidic device with a deep learning generative model
Creators: name: Zhu, Kewei
name: Cheng, Sibo
name: Kovalchuk, Nina
name: Simmons, Mark
name: Guo, Yi-Ke
name: Matar, Omar K.
name: Arcucci, Rossella
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computational Engineering, Finance, and Science (cs.CE)
subject: FOS: Computer and information sciences

description: Predicting drop coalescence based on process parameters is crucial for experiment design in chemical engineering. However, predictive models can suffer from the lack of training data and more importantly, the label imbalance problem. In this study, we propose the use of deep learning generative models to tackle this bottleneck by training the predictive models using generated synthetic data. A novel generative model, named double space conditional variational autoencoder (DSCVAE) is developed for labelled tabular data. By introducing label constraints in both the latent and the original space, DSCVAE is capable of generating consistent and realistic samples compared to standard conditional variational autoencoder (CVAE). Two predictive models, namely random forest and gradient boosting classifiers, are enhanced on synthetic data and their performances are evaluated on real experimental data. Numerical results show that considerable improvement in prediction accuracy can be achieved by using synthetic data and the proposed DSCVAE clearly outperforms the standard CVAE. This research clearly brings more insight into handling imbalanced data for classification problems, especially in chemical engineering
description: 12 pages, 9 figures, journal articles
An expert system approach to personal financial planning in Australia
Creators: name: Chishti, Muhammad Ali
Publisher: name: CQUniversity
Year: 2022
Subjects: subject: 150201 Finance
subject: FOS: Economics and business

description: The objectives of this research were to investigate issues involved in the development of a financial planning expert system for the Australian environment and to test the system's effectiveness as a decision support tool. A prototype expert system was developed and tested outside the development environment. Findings indicate that it is possible to develop a simple rule-based system which gives advice useful to practitioners in an area of personal financial planning, namely, advice on superannuation. Findings also indicated that expert systems help to overcome several kinds of representational failures in the human analysis process including: inconsistency, inaccuracy, individual differences, and inefficiency. Those aspects of expert systems that directly support a decision maker in reaching an effective decision were identified. These aspects were: intelligent calculation capabilities, explanation as to why certain information was required by the system, and explanation as to how conclusions were reached by thesystem.From a general perspective the methodology used in this study offers the foundations needed to attest the value of expert systems as effective decision support tools. Future studies should incorporate a longitudinal design to more accurately assess cumulative effects of an expert systemin decision making. This study was of an exploratory nature and the major limitation of the study was the small number of test cases studied. However the study is of significance as there are very few reported studies evaluating the effectiveness of expert systems in decision making. Thesuccessful verification of the system developed demonstrates its feasibility. The main messages to expert system developers and researchers from this study are that expert systems will flourish more by focusing on 'how' theycan be improved as decision tools and that there is a clear need for more attention to theoretical grounding than is generally assumed or practiced in expert system development and research. Expert system research should also be integrated with Decision Support System [DSS] design literature since, as was found in this project, understanding which DSS are effective and what makes them effective is of great assistance in improving the designof expert systems.
Oxidation markers of premature ageing in Chardonnay wine: Combined use of GC-MS/MS, GC-O/Olfactoscan and sensory analysis for their characterisation
Creators: name: Simon, Marie
name: Vessot, Amandine
name: Mallard, Jérôme
name: Romanet, Rémy
name: Béno, Noëlle
name: Lübke, Markus
name: Ballester, Jordi
name: Nikolantonaki, Maria
name: Gougeon, Régis
name: Thomas-Danguin, Thierry
name: Le Fur, Yves
Publisher: name: Zenodo
Year: 2022
Subjects: white wine
key odorant
odour mixture
trained panel
sensory profile

description: The phenomenon called “premature ageing”, which is characterised by uncontrolled and unwanted ageing of wines, can even impact fairly young wines. The aim of the present study was to determine the chemical nature and the relative importance of oxidation markers in Chardonnay wines through a combined approach of sensory analysis, GC-O & Olfactoscan (OLF) and GC-MS/MS (Chardonnay+ project). We systematically compared a control wine (non-oxidised Chardonnay wine, 2019-vintage) with the same wine artificially oxidised to simulate premature oxidation. On the one hand, a sensory analysis was conducted with a trained panel to characterise the sensory consequences of oxidation in the wine. Then, volatile compounds from the oxidised wine were extracted by Solid-Phase Extraction (SPE) and analysed by GC-O and Olfactoscan. Thereby, the volatile compounds were submitted to a GC/O analysis while at the olfactory port a background odour of the control wine is delivered by an olfactometer. Thus, we could identify the compounds that are responsible for the odour of oxidation within the wine aroma buffer. Finally, volatile compounds of both control and oxidised wines were analysed by GC-MS/MS after two extraction methods: Solid Phase Micro Extraction (SPME) and liquid/liquid extraction. This approach allowed pointing out the modifications in volatile compounds concentration induced by the oxidation process in Chardonnay wine.
Degradation of autotoxic chemicals and maintainence of electrical conductivity recover growth, yield and nutrient absorption of successive lettuce in recycled hydroponics
Creators: name: Razzak, Md. Abdur
name: Yamazaki, Chiaki
name: Fuse, Tetsuhito
name: Yakura, Yasuhiro
name: Matsushita, Kounosuke
name: Ueno, Makoto
name: Asaduzzaman, Md.
name: Asao, Toshiki
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Medicine
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Developmental Biology
subject: Marine Biology
subject: Cancer
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Plant Biology

description: In recycled hydroponics, successive crop cultivation by maintaining electrical conductivity (EC) suffers lower growth performance due to accumulating autotoxic root exudates. In this study, the efficiency of alternate current electro degradation (AC-ED) was evaluated for degrading allelochemicals and recovering retarded lettuce yield cultivated in EC-adjusted repeatedly used nutrient solutions. From benzoic acid (BA)-added nutrient solution, BA was completely degraded after 24 h by applying AC-ED at 551 and 940 Hz frequency with 50 and 80% electrical duty. In lettuce bioassay, fresh mass was negatively affected without the AC-ED-treated solution. Finally, lettuce seedlings were hydroponically grown in a plant factory using a half-strength Enshi nutrient solution. Culture solutions were unchanged in non-renewed solutions. Nutrient elements were supplied based on the EC (1.42 dS m−1) of culture solutions. The fresh weight of lettuce was gradually decreased in subsequent cultures. Nutrient absorption rate was reduced in non-renewed solutions though enough of all nutrient elements were available in the solution. In the final culture, the highest shoot fresh weight (SFW) was recorded in the renewed (83.0 g plant−1) solution which was similar to the AC-ED-treated solution (81.0 g plant−1) and the lowest (58.0 g plant−1) was in the non-renewed solution. By applying AC-ED, 40% lettuce yield was recovered in the EC-adjusted solution without renewing. Therefore, it is recommended that the continuous application of AC-ED with the capacity of 551 Hz and 50% duty would be applied for recovering the retarded lettuce yield cultivated with repeatedly used culture solutions in recycled hydroponics.
Shot noise of series quantum point contacts intercalating chaotic cavities
Creators: name: Oberholzer, Stefan
name: Sukhorukov, Eugene V.
name: Strunk, Christoph
name: Schönenberger, Christian
Publisher: name: Universität Regensburg
Year: 2002
Subjects: subject: DIFFUSIVE CONDUCTORS; SEMICLASSICAL THEORY; SUPPRESSION; SCATTERING
subject: 530 Physik
subject: 73.23.Ad
subject: 72.70.1m
subject: 73.50.Td

description: Shot noise of series quantum point contacts forming a sequence of cavities in a two-dimensional electron gas are studied theoretically and experimentally. Noise in such a structure originates from local scattering at the point contacts as well as from chaotic motion of the electrons in the cavities. We found that the measured shot noise is in reasonable agreement with our theoretical prediction taking the cavity noise into account.
The molecular systems composed of the charmed mesons in the $H\bar{S}+h.c.$ doublet
Creators: name: Shen, Lei-Lei
name: Chen, Xiao-Lin
name: Luo, Zhi-Gang
name: Huang, Peng-Zhi
name: Zhu, Shi-Lin
name: Yu, Peng-Fei
name: Liu, Xiang
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We study the possible heavy molecular states composed of a pair of charm mesons in the H and S doublets. Since the P-wave charm-strange mesons $D_{s0}(2317)$ and $D_{s1}(2460)$ are extremely narrow, the future experimental observation of the possible heavy molecular states composed of $D_s/D_s^\ast$ and $D_{s0}(2317)/D_{s1}(2460)$ may be feasible if they really exist. Especially the possible $J^{PC}=1^{--}$ states may be searched for via the initial state radiation technique.
description: 42 pages, 4 tables, 31 figures. Improved numerical results and Corrected typos.
Properties of recent IBAD-MOCVD Coated Conductors relevant to their high field, low temperature magnet use
Creators: name: Braccini, V
name: Xu, A
name: Jaroszynski, J
name: Xin, Y
name: Larbalestier, D C
name: Chen, Y
name: Carota, G
name: Dackow, J
name: Kesgin, I
name: Yao, Y
name: Guevara, A
name: Shi, T
name: Selvamanickam, V
Publisher: name: arXiv
Year: 2010
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: BaZrO3 (BZO) nanorods are now incorporated into production IBAD-MOCVD coated conductors. Here we compare several examples of both BZO-free and BZO-containing coated conductors using critical current (Ic) characterizations at 4.2 K over their full angular range up to fields of 31 T. We find that BZO nanorods do not produce any c-axis distortion of the critical current density Jc(theta) curve at 4.2 K at any field, but also that pinning is nevertheless strongly enhanced compared to the non-BZO conductors. We also find that the tendency of the ab-plane Jc(theta) peak to become cusp-like is moderated by BZO and we define a new figure of merit that may be helpful for magnet design - the OADI (Off-Axis Double Ic), which clearly shows that BZO broadens the ab-plane peak and thus raises Jc 5-30° away from the tape plane, where the most critical approach to Ic occurs in many coil designs. We describe some experimental procedures that may make critical current Ic tests of these very high current tapes more tractable at 4.2 K, where Ic exceeds 1000 A even for 4 mm wide tape with only 1 micron thickness of superconductor. A positive conclusion is that BZO is very beneficial for the Jc characteristics at 4.2 K, just as it is at higher temperatures, where the correlated c-axis pinning effects of the nanorods are much more obvious.
Investigating systemic immune responses in the pathophysiology of allergic rhinitis using peripheral blood
Creators: name: Kim, Young Woong
Publisher: name: University of British Columbia
Year: 2019

description: Allergic rhinitis (AR) is the most prevalent allergic disease worldwide, affecting up to 40% of the global population. AR is a symptomatic disorder of the nose induced by IgE-mediated allergic inflammation of the nasal mucosa. Many studies have focused on the local inflammatory site contributing to an understanding of the pathophysiology of AR. The systemic immune responses of AR, however, have not been well investigated, and approaches for such investigation are scant. In order to identify systemic immune response signatures, we used peripheral blood collected from subjects with AR following nasal allergen challenge (NAC). The response signatures we identified consist of immune gene clusters associated with frequencies of corresponding immune cells that reflect dynamic immune responses after NAC. In particular, we found individual clusters associated with neutrophils, neutrophil/lymphocyte ratio (NLR), and lymphocytes, which demonstrated significantly different patterns between allergic and non-allergic subjects. The NLR-associated cluster was also moderately associated with clinical symptoms at 6 h post-NAC in cat allergic subjects. We tested how the identified signatures in cat allergy are expressed in birch and ragweed allergies, which are seasonal/intermittent allergies, using the NAC and Environmental Exposure Unit models. In the NAC model, while the birch allergic subjects did not demonstrate significantly (p > 0.05) different total nasal symptom score (TNSS) from the cat allergic subjects, there were fewer significantly (BH-FDR < 0.1) differentially expressed genes after allergen challenge in birch allergy (4 genes) than immune gene signatures (53 genes) identified in cat allergy. The difference may be associated with the distinct clinical symptoms reported between seasonal/intermittent allergy and perennial/persistent allergy. We also used our systemic immune gene signature approach to help determine the possible mechanism of action of the novel immunotherapeutic Cat-PAD. The significant reduction of TNSS that allergic subjects experienced after the immunotherapy was strongly associated with significant increase of lymphocytes at 1 h post-NAC following treatment. As an exploratory data analysis, the approach identified five genes likely associated with the correlation. Collectively, the systemic immune gene signature approach may be a useful and potentially objective method to diagnose AR and investigate the efficacy and mechanisms of AR treatments.
Aharonov-Bohm effects in multiwall carbon nanotubes
Creators: name: Strunk, Christoph
name: Stojetz, Bernhard
Publisher: name: Universität Regensburg
Year: 2006
Subjects: subject: 530 Physik
subject: 72.80.Rj
subject: 73.63.Fg

description: We investigate quantum transport phenomena in multiwall carbon nanotubes in perpendicular and parallel magnetic field. An efficient gating technique allows for a considerable tuning of the nanotube doping level. We show that the weak localization is strongly suppressed at peaks at certain gate voltages which can be linked with the bottoms of one-dimensional electronic subbands. In large parallel magnetic field, we observe a superposition of h/2e-periodic Altshuler-Aronov-Spivak oscillations and an additional h/e-periodic contribution, which we attribute to the magnetic field dependence of the band structure.
The Hanbury Brown and Twiss experiment with fermions
Creators: name: Oberholzer, Stefan
name: Henny, M.
name: Strunk, Christoph
name: Schönenberger, Christian
name: Heinzel, Thomas
name: Ensslin, Klaus
name: Holland, M.
Publisher: name: Universität Regensburg
Year: 2000
Subjects: subject: quantum statistics; noise; correlation; MULTITERMINAL DIFFUSIVE CONDUCTORS; QUANTUM SHOT-NOISE; SCATTERING-THEORY; SUPPRESSION
subject: 530 Physik
subject: 34.80.P
subject: 73.40.H
subject: 85.25.D
subject: 42.50.L
subject: 05.30+

description: We realized an equivalent Hanbury Brown and Twiss experiment for a beam of electrons in a two-dimensional electron gas in the quantum Hall regime. A metallic split gate serves as a tunable beam splitter which is used to partition the incident beam into transmitted and reflected partial beams. The current fluctuations in the reflected and transmitted beam are fully anticorrelated demonstrating that fermions tend to exclude each other (anti-bunching), If the occupation probability of the incident beam is lowered by an additional gate, the anticorrelation is reduced and disappears in the classical limit of a highly diluted beam. (C) 2000 Elsevier Science B.V. All rights reserved.
Simultaneous removing algal and its extracellular organic matters by Mg/Al-layered double hydroxide /La-montmorillonite
Creators: name: Yang, Yuankun
name: Liu, Jie
name: Ma, Tian
name: Song, Tao
name: Feng, Xiaoqian
name: Su, Mingyue
name: Li, Lunzhen
name: Tu, Weiguo
name: Liu, Zhaoqiang
name: Chen, Shu
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Cell Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: Evolutionary Biology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Hematology
subject: Plant Biology

description: Rapid and effective simultaneous removal of algal and extracellular organic matter (EOM) is essential for algal blooms water emergency treatment. In this study, a composite material was prepared by physical and chemical interaction between La-montmorillonite (La-MMT) and Mg/Al-layered double hydroxide (LDHs), and its removal effect of algal and extracellular organic matters (EOM) was investigated. The results showed that the removal rate of chlorophyll a (chl-a) was 96.8% within 2 h when the LDHs/La-MMT2:1 dosage was 1.0 g/L. Three-dimensional fluorescence characteristic spectra and parallel factor analysis showed that the removal of EOM by composite material mainly reflected in the removal of humus-like substances. The reaction heat of composite material for the algal solution was −32.7 J/g. Zeta potential changed from −25.7 mV to −16.9 mV, the main treatment mechanisms of composite material were surface adsorption, complexation precipitation, charge neutralisation, and ion exchange. These findings herein proposed that composite material was a potential and proper treating agent for removing algal cells and EOM from algal blooms water.