cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: 10 Minutes of Empathy: Exploring Ways to Create a Better Doctor-Patient Relationship
Creators: name: Jaitli, Kanak
Publisher: name: Emily Carr University of Art and Design
Year: 2018
Subjects: subject: Physician and patient
subject: Medical technology

description: This thesis is an exploration into ‘getting the human element back into the doctor-patient relationship, in the technology driven future of healthcare’, within the 10 minute time frame of a walk-in clinic, using design tools strategically. ‘Care comfort’ between the doctor and the patient has been on the fall over the last decade. Population explosion, myriad of choices, technology boom and medical discoveries have all contributed towards this changing dynamic. In today’s tightly timed clinic visits, there is a lot of repetitive questioning on the part of the patient, which leads to repetitive explanation from the doctor. The mind of the patient is often clouded with anxiety which leads to them being less receptive to the doctor’s instructions. All this, coupled with a growing push towards digitisation of healthcare, sophisticated technology will soon provide diagnosis, treatment strategy and recommendations to the doctor, minimising their role as the sole decision making person. Penetration of smart technology into the intimate, personalized doctor- patient space brings the inherent risk of dehumanizing the relationship further. Thus, in this technology driven future of healthcare, it is important that we do not lose the ‘human connection’ between the doctors and the patients. This thesis aims to examine the factors affecting the relationship, communication methods and emotions involved in the doctor-patient interaction area, using explorative and generative design methodologies. This work sits within the larger body of relational design, as the core focus is understanding people who communicate within stressful conditions. This thesis uses participatory design methods within a human centered design approach to understand the problem space. Stakeholder mapping, journey maps, evolution mapping, interviews, cultural probes and mental models are the design tools used to understand, categorise and organise the information within the research area. An approach similar to the one suggested in this thesis can be extrapolated for use in spheres beyond healthcare. The thesis offers a set of design opportunities which can be carried forward for further research. The main inference shows that decreasing patient anxiety levels and introducing better communication methods can lead to improved human connection. Therefore, it offers possible design interventions which provide alternative ways of for enhancing the quality and content of the patient’s experience and keeping it within the ‘comfort zone’ of reduced anxiety without sacrificing the benefits accruing from smart technology.
Fourth-post-Newtonian-exact approximation to General Relativity
Creators: name: Brizuela, David
name: Schaefer, Gerhard
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: An approximation to General Relativity is presented that agrees with the Einstein field equations up to and including the fourth post-Newtonian (PN) order. This approximation is formulated in a fully constrained scheme: all involved equations are explicitly elliptic except the wave equation that describes the two independent degrees of freedom of the gravitational field. The formalism covers naturally the conformal-flat-condition (CFC) approach by Isenberg, Wilson, and Mathews and the improved second PN-order exact approach CFC+. For stationary configurations, like Kerr black holes, agreement with General Relativity is achieved even through 5PN order. In addition, a particularly interesting 2PN-exact waveless approximation is analyzed in detail, which results from imposing more restrictive conditions. The proposed scheme can be considered as a further development on the waveless approach suggested by Schaefer and Gopakumar [Phys. Rev. D {\bf 69}, 021501 (2004)].
description: Replaced by the published version. Some clarifications and references added.
Surface deep profile synchrotron studies of mechanically modified top-down silicon nanowires array using ultrasoft X-ray absorption near edge structure spectroscopy
Creators: name: Turishchev, S.Yu.
name: Parinova, V.E.
name: Pisliaruka, Aleksandra
name: Koyuda, D.A.
name: Yermukhamed, Dana
name: Ming, Tingsen
name: Ovsyannikov, Ruslan
name: Smirnov, Dmitriy
name: Makarova, Anna
name: Sivakov, Vladimir
Publisher: name: Berlin : Nature Publishing
Year: 2019
Subjects: subject: X-ray
subject: spectroscopy
subject: silicon nanowires
subject: 620

description: Atomic, electronic structure and composition of top-down metal-assisted wet-chemically etched silicon nanowires were studied by synchrotron radiation based X-ray absorption near edge structure technique. Local surrounding of the silicon and oxygen atoms in silicon nanowires array was studied on as-prepared nanostructured surfaces (atop part of nanowires) and their bulk part after, first time applied, in-situ mechanical removal atop part of the formed silicon nanowires. Silicon suboxides together with disturbed silicon dioxide were found in the composition of the formed arrays that affects the electronic structure of silicon nanowires. The results obtained by us convincingly testify to the homogeneity of the phase composition of the side walls of silicon nanowires and the electronic structure in the entire length of the nanowire. The controlled formation of the silicon nanowires array may lead to smart engineering of its atomic and electronic structure that influences the exploiting strategy of metal-assisted wet-chemically etched silicon nanowires as universal matrices for different applications.
SAPPORO: A way to turn your graphics cards into a GRAPE-6
Creators: name: Gaburov, Evghenii
name: Harfst, Stefan
name: Zwart, Simon Portegies
Publisher: name: arXiv
Year: 2009
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: We present Sapporo, a library for performing high-precision gravitational N-body simulations on NVIDIA Graphical Processing Units (GPUs). Our library mimics the GRAPE-6 library, and N-body codes currently running on GRAPE-6 can switch to Sapporo by a simple relinking of the library. The precision of our library is comparable to that of GRAPE-6, even though internally the GPU hardware is limited to single precision arithmetics. This limitation is effectively overcome by emulating double precision for calculating the distance between particles. The performance loss of this operation is small (< 20%) compared to the advantage of being able to run at high precision. We tested the library using several GRAPE-6-enabled N-body codes, in particular with Starlab and phiGRAPE. We measured peak performance of 800 Gflop/s for running with 10^6 particles on a PC with four commercial G92 architecture GPUs (two GeForce 9800GX2). As a production test, we simulated a 32k Plummer model with equal mass stars well beyond core collapse. The simulation took 41 days, during which the mean performance was 113 Gflop/s. The GPU did not show any problems from running in a production environment for such an extended period of time.
description: 13 pages, 9 figures, accepted to New Astronomy
Synthesis and self-assembly properties of the first fluorescein-based hexacatenar mesogens
Creators: name: Xie, Xiaoling
name: Yi, Xiaoqin
name: Liang, Yurun
name: Leng, Jun
name: Liu, Xiaotong
name: Gao, Hongfei
name: Xiao, Yulong
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biophysics
subject: Biochemistry
subject: Physical Sciences not elsewhere classified
subject: Medicine
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Chemical Sciences not elsewhere classified
subject: Inorganic Chemistry
subject: FOS: Chemical sciences

description: First series of fluorescein-based hexacatenar mesogens consisting of a central fluorescein unit and two 1,2,3-triazole dendritic wings were designed and synthesized by using the Williamson reaction and Cu-assisted alkyne-azide cycloaddition reaction. Polarized optical microscopy textures, differential scanning calorimetry curves, and X-ray diffraction (XRD) data demonstrated that all the compounds can self-assemble into hexagonal columnar mesophases. Organogel test demonstrated that these compounds could form organogel in some moderate polar solvents with irregularly winkled morphologies. Density functional theory calculation demonstrated that these mesogens adopted distorted conformation which might be the reason why narrow mesogenic temperature ranges and irregularly winkled morphologies in these compounds are observed.
title: Network Applications and the Utah Homeless Network
Creators: name: Snyder, Michael A.
Publisher: name: Utah State University
Year: 2014

description: Graph theory is the foundation on which social network analysis (SNA) is built. With the flood of "big data," graph theoretical concepts and their linear algebraic counterparts are essential tools for analysis in the burgeoning field of network data analysis, in which SNA is a subset. Here we begin with an overview of SNA. We then discuss the common descriptive measures taken on network data as well as proposing new measures specific to homeless networks. We also define a new data structure which we call the location sequence matrix. This data structure makes certain computational network analyses particularly easy. Finally we apply Pulse Processes in a new way to the homeless network in Utah. We believe the new data structure and pulse processes, when used for analysis of the Utah homeless services. In particular, pulse processes, first introduced by Brown, Roberts, and Spencer, to analyze energy demand, form a dynamic population model that can provide a measure of the stability in a network and the patterns of action of individuals experiencing homelessness.
Tasmania transformed or transportation revisited? immigration to Tasmania, 1945-1955
Creators: name: O'Brien, E
Publisher: name: University Of Tasmania
Year: 2023

description: The first decade after World War II saw Tasmania embark upon a quarter of a century of change and development, a period which would witness a transformation in the state's economy and social character. In the immediate postwar period Tasmania was experiencing an economic slump, with the winding down of war manufacturing, a decreased demand for goods, and severe shortage of materials. The light on the horizon was Tasmania's potential industrial revolution, an expansion of secondary industry, the key to which would be the exploitation of Tasmania's abundant water supply. Tasmania's industrial boom would be led by a relatively small number of firms, such as the Electrolytic Zinc Company and Associated Pulp and Paper Mills, supplied with cheap, bulk power through the state's hydro-electric scheme.
On Batalin-Vilkovisky Formalism of Non-Commutative Field Theories
Creators: name: Bering, Klaus
name: Grosse, Harald
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We apply the BV formalism to non-commutative field theories, introduce BRST symmetry, and gauge-fix the models. Interestingly, we find that treating the full gauge symmetry in non-commutative models can lead to reducible gauge algebras. As one example we apply the formalism to the Connes-Lott two-point model. Finally, we offer a derivation of a superversion of the Harish-Chandra-Itzykson-Zuber integral.
description: 20 pages, LaTeX. v2: minor corrections. v3: Added an Appendix about Harish-Chandra-Itzykson-Zuber integrals. v4: Added References
title: The History of the Department of Landscape Architecture and Environmental Planning at Utah State University
Creators: name: Smith, Aaron
Publisher: name: Utah State University
Year: 2014

description: This study presents an examination of the history of the Department of Landscape Architecture and Environmental Planning. The study uses both qualitative and quantitative methods to produce a holistic view of the events that influenced change with the Department and it is presented through a social constructionist lens. The qualitative methods were primarily driven by oral history interviews with former faculty, as well as analysis by the author of historical documents. The quantitative analysis involved the use of an alumni survey to measure changes in demographics, values, predispositions, and perceptions regarding the LAEP Department amongst the student body, and how those changes influenced the Department.
The historical findings are presented as a narrative from the origins of the Department in the late 1930s to 2014, covering the first seventy-five years of the program. The narrative is broadly organized into chronological sections (1939-1964, 1964-1972, 1972-1983, 1983-2001, 2001-2014), and broken up further by specific themes that run throughout the narrative (leadership, faculty, program development, facilities, technology, and student body). This thesis found that throughout the first seventy-five years of the Department’s history, change has been brought-about by numerous internal and external forces, and the people involved in the creation and development of the LAEP Department were influenced by a broad range of social and professional trends. Notably, the creation of a core faculty in the 60s and 70s set the agenda for changes that occurred within the LAEP Department for the next forty years, and that their strengths and weaknesses were manifest in the Department's development.
The lateral-torsional buckling of doubly symmetric wide flange sections
Creators: name: De Vall, Ronald H.
Publisher: name: University of British Columbia
Year: 2011

description: In this thesis, a stiffness matrix which includes the non-linear effects of principal plane shears, moments and axial loads on lateral and torsional deflections is developed for a doubly symmetric wide flange section. Initially, an exact eight by eight linear matrix is developed for an element of constant section properties. The eight allowable deflections allows the independent representation of the deflections of either flange at either end. The non-linear effects are included in the differential equations by considering the effect of the primary stresses on the equilibrium of a dis-placed element. Two approximations are then introduced. The first consists of a numerical technique for solving the differential equations. The second consists of a simplification of the boundary conditions in solving the differential equations. Using these two approximations, the non-linear portion of the matrix is then built. Several structures are then analyzed. Each structure is divided into several elements. This allows beams of non-constant section properties to be analyzed, and increases the accuracy of the results of the approximate matrices. The results of these analyses are then compared to theoretical results and tabulated. It is seen that the matrix gives good agreement for all cases tested.
Creating supported plasma membrane bilayers using acoustic pressure
Creators: name: Sezgin, Erdinc
name: Carugo, Dario
name: Levental, Ilya
name: Stride, Eleanor
name: Eggeling, Christian
Publisher: name: Basel : MDPI
Year: 2020
Subjects: subject: Acoustic pressure
subject: GPMVs
subject: Plasma membrane bilayers
subject: Plasma membrane vesicles
subject: Supported bilayers
subject: 570

description: Model membrane systems are essential tools for the study of biological processes in a simplified setting to reveal the underlying physicochemical principles. As cell-derived membrane systems, giant plasma membrane vesicles (GPMVs) constitute an intermediate model between live cells and fully artificial structures. Certain applications, however, require planar membrane surfaces. Here, we report a new approach for creating supported plasma membrane bilayers (SPMBs) by bursting cell-derived GPMVs using ultrasound within a microfluidic device. We show that the mobility of outer leaflet molecules is preserved in SPMBs, suggesting that they are accessible on the surface of the bilayers. Such model membrane systems are potentially useful in many applications requiring detailed characterization of plasma membrane dynamics. © 2020 by the authors. Licensee MDPI, Basel, Switzerland.
title: Improving the Physical Processes and Model Integration Functionality of an Energy Balance Model for Snow and Glacier Melt
Creators: name: Sen Gupta, Avirup
Publisher: name: Utah State University
Year: 2014

description: The Hindu-Kush Himalayan region possesses a large resource of snow and ice, which acts as a freshwater reservoir for irrigation, domestic water consumption or hydroelectric power for billions of people in South Asia. Monitoring hydrologic resources in this region is challenging because of the difficulty of installing and maintaining a climate and hydrologic monitoring network, limited transportation and communication infrastructure and difficult access to glaciers. As a result of the high, rugged topographic relief, ground observations in the region are extremely sparse. Reanalysis data offer the potential to compensate for the data scarcity, which is a barrier in hydrological modeling and analysis for improving water resources management. Reanalysis weather data products integrate observations with atmospheric model physics to produce a spatially and temporally complete weather record in the post-satellite era. This dissertation creates an integrated hydrologic modeling system that tests whether streamflow prediction can be improved by taking advantage of the National Aeronautics and Space Administration (NASA) remote sensing and reanalysis weather data products in physically based energy balance snow melt and hydrologic models. This study also enhances the energy balance snowmelt model by adding capability to quantify glacier melt. The novelty of this integrated modeling tool resides in allowing the user to isolate various components of surface water inputs (rainfall, snow and glacier ice melt) in a cost-free, open source graphical-user interface-based system that can be used for government and institutional decision-making. Direct, physically based validation of this system is challenging due to the data scarcity in this region, but, to the extent possible, the model was validated through comparison to observed streamflow and to point measurements at locations in the United States having available data
Painlevé VI and the Unitary Jacobi ensembles
Creators: name: Chen, Yang
name: Zhang, Lun
Publisher: name: arXiv
Year: 2009
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics

description: The six Painlevé transcendants which originally appeared in the studies of ordinary differential equations have been found numerous applications in physical problems. The well-known examples among which include symmetry reduction of the Ernst equation which arises from stationary axial symmetric Einstein manifold and the spin-spin correlation functions of the two-dimensional Ising model in the work of McCoy, Tracy and Wu. The problem we study in this paper originates from random matrix theory, namely, the smallest eigenvalues distribution of the finite $n$ Jacobi unitary ensembles which was first investigated by Tracy and Widom. This is equivalent to the computation of the probability that the spectrum is free of eigenvalues on the interval $[0,t]$. Such ensembles also appears in multivariate statistics known as the double-Wishart distribution. We consider a more general model where the Jacobi weight is perturbed by a discontinuous factor and study the associated finite Hankel determinant. It is shown that the logarithmic derivative of Hankel determinant satisfies a particular $σ-$form of Painlevé VI, which holds for the gap probability as well. We also compute exactly the leading term of the gap probability as $t\to 1^-$.
description: 21 pages. Revised version
From global symmetries to local currents: the free (scalar) case in 4 dimensions
Creators: name: Morsella, Gerardo
name: Tomassini, Luca
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Operator Algebras (math.OA)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 81T05

description: Within the framework of algebraic quantum field theory, we propose a new method of constructing local generators of (global) gauge symmetries in field theoretic models, starting from the existence of unitary operators implementing locally the flip automorphism on the doubled theory. We show, in the simple example of the internal symmetries of a multiplet of free scalar fields, that through the pointlike limit of such local generators the conserved Wightman currents associated with the symmetries are recovered.
description: 23 pages, final version to appear in Rev. Math. Phys., minor improvements
title: Sustainable Production of Novel Biomaterials in Escherichia coli
Creators: name: Rahman, Asif
Publisher: name: Utah State University
Year: 2014

description: The biotechnology revenues in the United States exceeded $100 billion in 2010 and the potential impact of synthetic biological engineering has been identified nationally as an emerging technology to further expand the national bioeconomy. Synthetic biological engineering approaches biology from an engineering perspective to make biology easier to engineer. The potential to engineer microorganisms for novel applications can have far-reaching implications and benefits for society. Some of the potential applications range from biosensors, biofuels, therapeutics, and biomaterials.
In this study two biomaterials were produced in genetically engineered Escherichia coli: polyhydroxybutyrates (PHBs) and spider silk. PHBs are bioplastics that have similar properties to petrochemical-derived plastics. Synthetic biological engineering can be used to optimize PHB extraction from E. coli by secretion of the PHB polymer outside of the cell.
Another biomaterial, spider silk, was also produced in E. coli. Spider silk is a unique material with high tensile strength and elasticity and thus could have a wide range of potential applications. Since spider silk is not naturally produced in microorganisms, the DNA sequences were optimized for increased production in E. coli.
In addition to optimization of bioproduct production in microorganisms using synthetic biology, another major cost is the carbon substrate. In this study wastewater microalgae were used as an alternative carbon substrate. Coupling synthetic biological engineering and sustainable engineering could potentially make production of bioproducts economically viable in the future.
title: EFFECTS OF RELATIVE INERTIAL LOAD ON PERFORMANCE MEASURES AND QUADRICEPS ELECTROMYOGRAPHY DURING FLYWHEEL RESISTANCE TRAINING SQUATS
Creators: name: Brantley, Jason Todd
Publisher: name: University of Kentucky Libraries
Year: 2020
Subjects: subject: FOS: Health sciences

description: Flywheel resistance training (FRT) has become an increasingly popular modality for exercising due to its unique application of providing external resistance. Little is known about how changes in relative inertial loads affects performance and electromyography (EMG) activity. The purpose of this study was to examine how performance metrics and quadriceps EMG activity are affected by relative inertial load during FRT-based squats. Fifteen resistance trained individuals completed five sets of five repetitions of squats with varying relative inertial loads in random order. Peak Eccentric Power (PEP), Peak Concentric Power (PCP), average force, total work, and repetition time were measured. Surface level EMG activity of the vastus lateralis (VL), vastus medialis (VM), and rectus femoris (RF) and knee joint angle and velocity (electrogoniometers) were measured continuously. As relative inertial load is increased during FRT-based squats, we see that PEP and PCP decreased and iEMG activity increased due to a decrease in movement velocity and an increase in stimulus duration, demonstrating that peak recruitment is achieved even at very low relative inertial loads.
description: © 2020 Jason Todd Brantley, Jr.
TESF South Africa Background Paper
Creators: name: Lotz-Sisitka, H
name: Kulundu-Bolus, I
Publisher: name: Zenodo
Year: 2021
Subjects: Education for Sustainable Development, Education for Sustainable Futures, South Africa

description: Efforts to transform education in support of more sustainable futures in South Africa cannot be de-linked from long histories of coloniality and apartheid. While this is the case, education can play an important role in contributing to sustainable, more socially just futures in South Africa. Sustainable development, if conceptualized as inclusive sustainable development that is socially just, economically viable and ecologically sound can contribute to educational quality and relevance. In this Background Paper, and in the Transforming Education for Sustainable Futures project, we consider both: 1) how education can contribute to sustainable development, and 2) how sustainable development can shape quality, relevant education.
Understanding Dynamics in Coarse-Grained Models: IV. Connection of Fine-Grained and Coarse-Grained Dynamics with the Stokes-Einstein and Stokes-Einstein-Debye Relations
Creators: name: Jin, Jaehyeok
name: Voth, Gregory A.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Applying an excess entropy scaling formalism to the coarse-grained (CG) dynamics of liquids, we discovered that missing rotational motions during the CG process are responsible for artificially accelerated CG dynamics. In the context of the dynamic representability between the fine-grained (FG) and CG dynamics, this work introduces the well-known Stokes-Einstein and Stokes-Einstein-Debye relations to unravel the rotational dynamics underlying FG trajectories, thereby allowing for an indirect evaluation of the effective rotations based only on the translational information at the reduced CG resolution. Since the representability issue in CG modeling limits a direct evaluation of the shear stress appearing in the Stokes-Einstein and Stokes-Einstein-Debye relations, we introduce a translational relaxation time as a proxy to employ these relations, and we demonstrate that these relations hold for the ambient conditions studied in our series of work. Additional theoretical links to our previous work are also established. First, we demonstrate that the effective hard sphere radius determined by the classical perturbation theory can approximate the complex hydrodynamic radius value reasonably well. Also, we present a simple derivation of an excess entropy scaling relationship for viscosity by estimating the elliptical integral of molecules. In turn, since the translational and rotational motions at the FG level are correlated to each other, we conclude that the "entropy-free" CG diffusion only depends on the shape of the reference molecule. Our results and analyses impart an alternative way of recovering the FG diffusion from the CG description by coupling the translational and rotational motions at the hydrodynamic level.
description: 42 pages, 8 figures
Genetic chemical variability of the volatiles and phenolic compounds in Clinopodium serpyllifolium subsp. fruticosum (L.) Bräuchler syn. Micromeria fruticosa (L.) Druce grown in Israel
Creators: name: Sharma, Reena
name: Shachter, Alona
name: Almog, Limor
name: Oren, Gilad
name: Roynik-Toshner, Hagar
name: Nativ Dudai
Publisher: name: Brill Online
Year: 2021
Subjects: subject: 60299 Ecology not elsewhere classified
subject: FOS: Biological sciences

description: Clinopodium serpyllifolium is a perennial medicinal plant generally used as herbal tea in folk medicine. Leaves of C. serpyllifolium from the representative exemplars in the Newe Ya’ar living germplasm collection were analyzed for their polyphenolic and volatiles composition, and tested for their antioxidant activity. The oxygenated monoterpenes pulegone (10.4-50.6%), piperitenone oxide (3.2-28.6%), piperitenone (0.9-14.6%), trans-piperitone oxide (0.3-11.2%), iso-menthol (0.3-8.8%) and sesquiterpene β-caryophyllene (7.4-13.7%) were found to be the major constituents from the solvent extraction of C. serpyllifolium analyzed by GC-MS. The representative exemplars were grouped into two chemotypes: one rich in pulegone and the second rich in piperitenone oxide and piperitenone. The total polyphenolics content, determined range from 26.6 to 62.9 mg gallic acid equivalents/g dry weight (DW). The antioxidant activity ranged from (42.8-77.1 mg chlorogenic acid equivalents/g DW). HPLC analysis revealed the rosmarinic acid content also showed remarkable differences in C. serpyllifolium (0.3-1.8 dry weight %). The results indicate that there is chemical diversity and also difference in the content of polyphenols of the representative exemplars. Antioxidant activity was in correlation with phenolic components.
Effect of external conditions on the structure of scrolled graphene edges
Creators: name: Fogler, M. M.
name: Neto, A. H. Castro
name: Guinea, F.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Characteristic dimensions of carbon nanoscrolls - "buckyrolls" - are calculated by analyzing the competition between elastic, van der Waals, and electrostatic energies for representative models of suspended and substrate-deposited graphene samples. The results are consistent with both atomistic simulations and experimental observations of scrolled graphene edges. Electrostatic control of the wrapping is shown to be practically feasible and its possible device applications are indicated.
description: 4 pages, 3 figures
title: Flash floods versus river floods
title: a comparison of psychological impacts and implications for precautionary behaviour
titleType: Subtitle
Creators: name: Laudan, Jonas
name: Zöller, Gert
name: Thieken, Annegret
Publisher: name: Universität Potsdam
Year: 2020

description: River floods are among the most damaging natural hazards that frequently occur in Germany. Flooding causes high economic losses and impacts many residents. In 2016, several southern German municipalities were hit by flash floods after unexpectedly severe heavy rainfall, while in 2013 widespread river flooding had occurred. This study investigates and compares the psychological impacts of river floods and flash floods and potential consequences for precautionary behaviour. Data were collected using computer-aided telephone interviews that were conducted among flood-affected households around 9 months after each damaging event. This study applies Bayesian statistics and negative binomial regressions to test the suitability of psychological indicators to predict the precaution motivation of individuals. The results show that it is not the particular flood type but rather the severity and local impacts of the event that are crucial for the different, and potentially negative, impacts on mental health. According to the used data, however, predictions of the individual precaution motivation should not be based on the derived psychological indicators – i.e. coping appraisal, threat appraisal, burden and evasion – since their explanatory power was generally low and results are, for the most part, non-significant. Only burden reveals a significant positive relation to planned precaution regarding weak flash floods. In contrast to weak flash floods and river floods, the perceived threat of strong flash floods is significantly lower although feelings of burden and lower coping appraisals are more pronounced. Further research is needed to better include psychological assessment procedures and to focus on alternative data sources regarding floods and the connected precaution motivation of affected residents.
description: Postprints der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe, 968
title: Designing Indeterminacy: User-Led Creation of Liminal Spaces at Work
Creators: name: Lee, Ian Sang Yun
Publisher: name: Emily Carr University of Art and Design
Year: 2018
Subjects: subject: Interior design
subject: Work environment

description: In the midst of a time where many concurrent shifts in cultures and technologies are shaping the future of work in unexpected ways, Designing Indeterminacy looks at the interior design of the contemporary workplace and considers its limitations. Through practice-led research this project attempts to understand everyday work experience of users. Participatory design methods are used to investigate the spatial limitations that knowledge workers today are facing in the contemporary work environment; a lack of user autonomy caused by the prescribed use of designed workspaces, and insufficient spatial integration of work-life concerns. The theoretical underpinnings of Liminality and Indeterminacy and their conceptual and lived connections to the workplace design are explored and considered as a means of mitigating such issues. Through hands-on making, the intersections of Liminality and the interior design process of workspaces are materialized. Designed artifacts enable a look into the ways that undetermined in-between spaces can empower users to better navigate their workplace. The designed artifact, its conceptual meaning and potential use are discussed with the intention to facilitate conversations and concerns around issues opened up and addressed throughout the research.
Turning charge-density waves into Cooper pairs
Creators: name: Chikina, A.
name: Fedorov, A.
name: Bhoi, D.
name: Voroshnin, V.
name: Haubold, E.
name: Kushnirenko, Y.
name: Kim, K.H.
name: Borisenko, S.
Publisher: name: London : Nature Publishing Group
Year: 2020
Subjects: subject: charge-density waves
subject: CDWs
subject: superconductivity
subject: 620
subject: 530

description: The relationship between charge-density waves (CDWs) and superconductivity is a long-standing debate. Often observed as neighbors in phase diagrams, it is still unclear whether they cooperate, compete, or simply coexist. Using angle-resolved photoemission spectroscopy, we demonstrate here that by tuning the energy position of the van Hove singularity in Pd-doped 2H-TaSe2, one is able to suppress CDW and enhance superconductivity by more than an order of magnitude. We argue that it is particular fermiology of the material that is responsible for each phenomenon, thus explaining their persistent proximity as phases.
The mechanics of genocide colonial policies and attitudes towards the Tasmanian aborigines, 1824-1836
Creators: name: Desailly, B
Publisher: name: University Of Tasmania
Year: 2023

description: The history of British government and settler treatment of the Tasmanian Aborigines in the first three decades of white settlement in VDL, is an outstanding example of the destructive effects of Western colonialism. Prior to white settlement in 1803, there were approximately 3,000-5,000 Aborigines living on the island in viable tribal-based groups. The average tribe had 20-30 families and lived in harmony with the environment. By the standards of similar hunting and food gathering societies, the population was relatively high on the island. By 1836, thirty-three years after , British colonists had invaded the island, the Aboriginal population was near complete decimation. Apart from a dwindling population on the official Flinders Island settlement, the only survivors of the holocaust were those that escaped government control in a sealing community in the Bass Strait islands.
Calcite incorporated in silica/collagen xerogels mediates calcium release and enhances osteoblast proliferation and differentiation
Creators: name: Rößler, S.
name: Unbehau, R.
name: Gemming, T.
name: Kruppke, B.
name: Wiesmann, H.-P.
name: Hanke, T.
Publisher: name: London : Nature Publishing Group
Year: 2020
Subjects: subject: silica xerogels
subject: collagen xerogels
subject: Multiphasic
subject: Biphasic
subject: Triphasic
subject: 530

description: Multiphasic silica/collagen xerogels are biomaterials designed for bone regeneration. Biphasic silica/collagen xerogels (B30) and triphasic xerogels (B30H20 or B30CK20) additionally containing hydroxyapatite or calcite were demonstrated to exhibit several structural levels. On the first level, low fibrillar collagen serves as template for silica nanoparticle agglomerates. On second level, this silica-enriched matrix phase is fiber-reinforced by collagen fibrils. In case of hydroxyapatite incorporation in B30H20, resulting xerogels exhibit a hydroxyapatite-enriched phase consisting of hydroxyapatite particle agglomerates next to silica and low fibrillar collagen. Calcite in B30CK20 is incorporated as single non-agglomerated crystal into the silica/collagen matrix phase with embedded collagen fibrils. Both the structure of multiphasic xerogels and the manner of hydroxyapatite or calcite incorporation have an influence on the release of calcium from the xerogels. B30CK20 released a significantly higher amount of calcium into a calcium-free solution over a three-week period than B30H20. In calcium containing incubation media, all xerogels caused a decrease in calcium concentration as a result of their bioactivity, which was superimposed by the calcium release for B30CK20 and B30H20. Proliferation of human bone marrow stromal cells in direct contact to the materials was enhanced on B30CK20 compared to cells on both plain B30 and B30H20.
A plane strain apparatus for soils
Creators: name: Vaid, Yoginder Pal
Publisher: name: University of British Columbia
Year: 2011

description: An apparatus has been designed to investigate the mechanical behaviour of soils under plane strain. Provision has also been made to consolidate specimens under condition of no lateral yield prior to their shear; thus simulating the consolidation state in natural sedimentary deposits. The apparatus is suited for testing both sands and clays, including undisturbed clay samples from standard size bore hole samplers. The design permits a variety of stress paths to be followed during shear. An experimental procedure for testing both sands and clays has been developed and some test results are described. The results obtained show a general confirmation of existing information on the behaviour of soils under plane strain.
title: Comparison of Selected Differential Producing, Ultrasonic, and Magnetic Flow Meters
Creators: name: Prettyman, Johnny B.
Publisher: name: Utah State University
Year: 2014

description: Flow meters are used to measure flow accurately. There are many different flow meters and it is necessary to know which will function best for specific situations. A wide variety of flow meters were selected for the study to assist in showing that each flow meter has its tradeoffs. The selected meters include: three types of Venturi meters, a wedge meter, a V-cone meter, an electromagnetic flow meter, and an ultrasonic flow meter. The characteristics researched in this study are discharge coefficient (Cd) over a range of Reynolds numbers (Re), head loss across each flow meter, life, and cost of meter. Each meter was tested over a wide range of Re to find the corresponding Cd and head loss. The life and cost of each meter were researched and estimated based on the flow meter companies and local distributor’s findings. With the findings, the tradeoffs are illustrated and will assist buyers in selecting a flow meter that will best fit their needs. While there are more flow meters available than was tested, the current study can direct buyers in a correct process of selecting meters for all situations.
title: The Kimama Core: A 6.4 Ma Record of Volcanism, Sedimentation, and Magma Petrogenesis on the Axial Volcanic High, Snake River Plain, ID
Creators: name: Potter, Katherine Elizabeth
Publisher: name: Utah State University
Year: 2014

description: The Snake River Plain (SRP) is one of the best-preserved examples of continental hotspot volcanis, with a continuous record of volcanism that extends over 16 Ma to the present. Yellowstone-Snake River Plain records the migration of plume-tail volcanism from inception at the Bruneau-Jarbridge caldera complex at 12.6 Ma to its present locus, under the Yellowstone Plateau.
Records kept by the Snake River Plain volcanic actions include rhyolite lavas and ignimbritesm minor coeval basalts, and an overlying veneer of younger basalts. The central SRP has received comparatively little attention in the past. The Kimama core hole was drilled as part of Project Hotspot, the Snake River Scientific Drilling Project, which seeks to understand the long-term volcanic and sediment logical history of the SRP volcanic province.
The Kimama core hole is the only part of the SRP that has not been scientifically drilled and cored to a significant depth in the past. Investigations of subsurface stratigraphy in continental volcanic provinces such as the SRP-YP are limited by the by the relatively low depth and spatial distribution of cored wells. The study of the Kimama core provides us with a continuous record of basalt and minor sediment deposition.
The long-term volcanic history of the SRP, documented by moving magma and its composition, demonstrates that magmatism is mantle plume-derived. Our investigation of the Kimama core, combined with new mantle tomography, provides evidence that refutes non-plume models for the origin of the Snake River Plain volcanic province.
A submillimetre galaxy at z=4.76 in the LABOCA survey of the Extended Chandra Deep Field South
Creators: name: Coppin, Kristen
name: Smail, Ian
name: Alexander, David M.
name: Weiss, Axel
name: Walter, Fabian
name: Swinbank, Mark
name: Greve, Thomas
name: Kovacs, Attila
name: De Breuck, Carlos
name: Dickinson, Mark
name: Ibar, Edo
name: Ivison, Rob
name: Reddy, Naveen
name: Spinrad, Hyron
name: Stern, Daniel
name: Brandt, Niel
name: Chapman, Scott
name: Dannerbauer, Helmut
name: van Dokkum, Pieter
name: Dunlop, James
name: Frayer, David
name: Gawiser, Eric
name: Geach, James
name: Huynh, Minh
name: Knudsen, Kirsten
name: Koekemoer, Anton
name: Lehmer, Bret
name: Menten, Karl
name: Papovich, Casey
name: Rix, Hans-Walter
name: Schinnerer, Eva
name: Wardlow, Julie
name: van der Werf, Paul
Publisher: name: arXiv
Year: 2009
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We report on the identification of the highest redshift submm-selected source currently known: LESSJ033229.4-275619. This source was detected in the Large Apex BOlometer CAmera (LABOCA) Extended Chandra Deep Field South (ECDFS) Submillimetre Survey (LESS), a sensitive 870-um survey (~1.2-mJy rms) of the full 30'x30' ECDFS with the LABOCA camera on the Atacama Pathfinder EXperiment (APEX) telescope. The submm emission is identified with a radio counterpart for which optical spectroscopy provides a redshift of z=4.76. We show that the bolometric emission is dominated by a starburst with a star formation rate of ~1000 Msun/yr, although we also identify a moderate luminosity Active Galactic Nucleus (AGN) in this galaxy. Thus it has characteristics similar to those of z~2 submm galaxies (SMGs), with a mix of starburst and obscured AGN signatures. This demonstrates that ultraluminous starburst activity is not just restricted to the hosts of the most luminous (and hence rare) QSOs at z~5, but was also occurring in less extreme galaxies at a time when the Universe was less than 10% of its current age. Assuming that we are seeing the major phase of star formation in this galaxy, then we demonstrate that it would be identified as a luminous distant red galaxy at z~3 and that the current estimate of the space density of z>4 SMGs is only sufficient to produce ~10% of the luminous red galaxy population at these early times. However, this leaves open the possibility that some of these galaxies formed through less intense, but more extended star formation events. If the progenitors of all of the luminous red galaxies at z~3 go through an ultraluminous starburst at z>4 then the required volume density of z>4 SMGs will exceed that predicted by current galaxy formation models by more than an order of magnitude.
description: 10 pages, 4 figures, 1 table, Accepted for publication in MNRAS Feb 23
Interactions between vegetation and water yield in Tasmanian highland catchment
Creators: name: Edwards, IJ
Publisher: name: University Of Tasmania
Year: 2023

description: A hydrological study has been made of the effects of vegetation on water yield in the Central Plateau catchments of Tasmania. The analysis has measured the efficiency of highland vegetation in straining out small diameter water droplets, both liquid and frozen, that prevail in low cloud, mist and fog., Run-off from experimental bas been compared with fog deposits in gauges built to quantify the potential importance of small diameter droplets over large areas. Evapotranspiration losses of water have been examined, and the effect of a severe fire on run-off has been analysed.
title: Statistical Modeling, Exploration, and Visualization of Snow Water Equivalent Data
Creators: name: Odei, James Beguah
Publisher: name: Utah State University
Year: 2014

description: Due to a continual increase in the demand for water as well as an ongoing regional drought, there is an imminent need to monitor and forecast water resources in the Western United States. In particular, water resources in the IntermountainWest rely heavily on snow water storage. Thus, the need to improve seasonal forecasts of snowpack and considering new techniques would allow water resources to be more effectively managed throughout the entire water-year. Many available models used in forecasting snow water equivalent (SWE) measurements require delicate calibrations.
In contrast to the physical SWE models most commonly used for forecasting, we offer a statistical model. We present a data-based statistical model that characterizes seasonal snow water equivalent in terms of a nested time-series, with the large scale focusing on the inter-annual periodicity of dominant signals and the small scale accommodating seasonal noise and autocorrelation. This model provides a framework for independently estimating the temporal dynamics of SWE for the various snow telemetry (SNOTEL) sites. We use SNOTEL data from ten stations in Utah over 34 water-years to implement and validate this model.
This dissertation has three main goals: (i) developing a new statistical model to forecast SWE; (ii) bridging existing R packages into a new R package to visualize and explore spatial and spatio-temporal SWE data; and (iii) applying the newly developed R package to SWE data from Utah SNOTEL sites and the Upper Sheep Creek site in Idaho as case studies.